2013年7月31日星期三

Self-loading concrete mixer structure

Since the fall mixer has a long history, as early as in the 20th century, from the steam Machine-driven concrete mixer drum cartridge has begun to emerge. 50 years later, Asphalt Mixing Plant the material type and tipping style double cone blender and stir split barrel Mixing machines have come out and be developed. Self-loading concrete mixers mix Cylinder wall of the mixing blades arranged radially. Work, mixing drum about its water Horizontal axis rotation, adding mix barrel materials, is raised to a certain height blade Degrees, by the weight of the whereabouts of this cycle of movement, to achieve uniform mixing Mixed results. Self-loading steel cement silo simple structure, generally stir Mixed plastic concrete based.Compulsory mixer from the early 1950s after the rise, has been rapidly Development and promotion. First there is the disc vertical shaft forced concrete mix Mixing machine. This mixer is divided into two kinds of turboprop and planets. 19th Century 70 Years later, with the application of lightweight aggregate, there has been a circular groove horizontal shaft forced mixing Mixing machine, which in turn sub-single-shaft and twin-shaft two kinds of lying, both self-loading and strong Made in two mixing characteristics. The linear velocity of the stirring blade is small, good wear resistance And low energy consumption, faster development.
Concrete mixer is to cement, sand and gravel aggregates and water are mixed and mixed into mixed Concrete mix machinery. Mainly by the Wheel Loader, feeding and discharging mechanism for Water system, the prime mover, transmission, chassis and supporting devices and other components.
Concrete mixers, including through the shaft and the transmission power mechanism connected And driven by the drive mechanism of the drum, the drum drum drum barrel tops around The ring body is provided, the drive shaft meshing with the ring gear set. The real With a new simple and reasonable structure, the use of gear, ring gear, may have Efficiency to overcome the rain and concrete block machine, roller and blenders slippage between the rollers; Transmission mechanism can be used to further ensure the elimination of roller and roll mixer Slippage between the barrel.

Failure of the gas source

This failure occurs mainly in air compressor and pressure reducing valves and piping and compressed air Gas processing component of these places and so on. Since the low pressure is not high, usually Adjusting spring break and there will be ruptured diaphragm, concrete batching plant we must Timely replacement. With a slow rise in pressure, under normal circumstances Are clogged filter to be cleaned so often.
Followed by the failure of the cylinder Since the cylinder and the cylinder has a leak outside of the phenomenon, in general, Are due to the eccentric rod installation, lubricating oil supply shortage, seals and Sealing ring worn or damaged piston rod cylinder with bruises and other impurities and made Into. We should timely adjust the position of the center of the piston rod to Lubricator regularly check the reliability, but also timely for cleaning.
There is a failure of the valve Since the pilot Cement silo, exhaust hole is easy particularly blocked, Sealed lead lax activity causing death card spool will be the circuit so Barrier. In this case, we should be promptly cleaned.
Through the above description, we stabilized soil mixing station out of the failure to And the solution have a certain understanding. If you have any better suggestions and Comments please do not hesitate to contact us.

Mobile stabilized soil mixing station

Airport grassroots stabilized soil construction. Production of concrete batching plant of two different gradations Gray gravel, lime stabilized soil, industrial waste soil stabilized soil finished material.
Equipment Bolted Type Cement Silo Mobile stabilized soil mixing station: Each silo with traction tires can walk, turn Field convenient and flexible production capacity is low.
Fixed stabilized soil mixing station: the need to fight with concrete foundations, then the device Fixed on it, high production capacity.

high and low voltage conversion calculations

Modern piston concrete pump, in order to meet the needs, generally has a high and low voltage conversion function. Concrete mixing plant, usually hydraulic drive change, that is to change the hydraulic oil supply means to achieve high or low pressure pumping. Piston end of the cylinder chamber communicates end chamber of the piston into the oil chamber, into the oil chamber as the larger, the oil supply is constant, will lead to slow piston speed, stroke frequency is reduced, thus reducing the displacement of the concrete.Screw Conveyor, since the cross-sectional area into the oil chamber and the concrete pump cylinder cross-sectional area ratio increases, so concrete pumping pressure increased, ie Figure 3-14 piping connections, enabling small displacement high pressure pump.

2013年7月30日星期二

concrete pump reasonable selection

With the development and improvement of building technology of concrete pouring increasingly high requirements. Concrete Mixing Truck hand is the increasing amount of disposable concrete pouring, pouring concrete on the other hand is highly increasing. Therefore, in recent years our concrete pump technology developed rapidly. Its specifications are: theoretical maximum throughput of 30 m3 / h ~ 125 m3 / h variety of specifications, the largest concrete pumping pressure 3.1MPa ~ 20.5MPa variety of pressure pumps. Divided according to their running wheel tire and concrete batching plant ; divided by butterfly valves, gate valves and valve three kinds; accordance with diesel driven power pumps and electric pumps, concrete pump driven by an electric motor is divided into non- Explosion-proof and explosion-proof type. Various pump has its own unique advantages.

concrete pump selection principle

(1) should be based on the construction organization design is based on selected concrete pump, concrete block making machine should be selected to meet the construction methods and quality of the project and work less. (2) the selected input Xue concrete should be technologically advanced, high reliability, good economy, high working efficiency. (3) concrete pump must be selected to meet the construction of the largest unit of time when pouring concrete requirements and maximum height
Degrees, the maximum horizontal distance requirements, there should be a certain technology and production capacity reserves, balanced production capacity of 1.2 to 1.5 times better. (4) Concrete mixing plant should not be using excessive number of units and a plurality of pump manufacturers, so as not to affect the normal use and large reserves of spare parts and repairs caused difficulties. (5) shall meet the requirements of special construction conditions. If there is no system power, tunnels and rail transport of explosive gases occasions. (6) should be considered corporate capital investment for the project and the future direction of development capacity and ability to reserves.

extruded concrete pump

There are double rotor wheel type, straight-tube type three rollers and belt slot type three. Rotor double roller type Concrete block machine, from the hopper, pump, squeeze the hose, vacuum system and power system components. Pump seals, pump body rotor-mounted two planetary roller, pump wall lined with rubber pads, inner plate with extruded hose. Planetary roller slewing drive power unit, rolled extruded hose, squeeze the tube inside the concrete pipes discharge. Vacuum system allows the pump body to maintain a certain degree of vacuum hose extrusion promote restitution immediately after rolling, and concrete mixing machine concrete hopper suction hose squeezed inside. Extruded concrete pump displacement, depending on the radius of gyration of the rotor and rotary speed, squeezing the suction hose diameter and concrete volumetric efficiency.

Concrete pump piston

There are hydraulic and mechanical drive type. Hydraulic concrete pump from the hopper,Asphalt Mixing Plant and piston, concrete tanks, dispensing valve, Y-shaped tube, washing equipment, hydraulic systems and power systems and other components. The hydraulic system by the pressure pushes the piston reciprocating motion. When the suction piston backward, forward and backward through the Y-shaped tube when the concrete pressed into concrete cylinder pipes. After pumping concrete, or compressed air cleaning with high pressure water pump and pipes. Concrete pump piston displacement, depending on the number and diameter of the concrete cylinders, pistons reciprocating velocity and steel cement silo sucked volumetric efficiency. Diaphragm in the pump body, when the pump below the water through the diaphragm control valve withdrew tanks, the diaphragm subsidence, concrete hopper pressure to open the check valve into the pump; when the pump in the tank of water through the pump control valve withdraw When the diaphragm pressure water rises, closing check valve, pressed into the concrete drain pipes.

concrete pump classification

Concrete pump distribution valve structure according to their type can be divided into the tubular valve, concrete block machine and rotary valve three types. The most commonly used is a dual system of tubular cylinder piston valves and gate valves hydraulic testing of concrete pumps.
Classified according to their size concrete pump concrete pump displacement size of their displacement can be divided into small (pump displacement of less than 30 m3 / h), type (pump displacement 30 ~ 80 m3 / h) and a large concrete pump (pump discharge greater than 80 m3 / h)
Classified according to their structure Wheel Loader concrete pump truck chassis chassis structure can be divided according to their overall style, semitrailer and full hanging. Is currently using more monolithic concrete pump.

concrete pump drive form according to their classification

Concrete pump drive can be divided into its piston extrusion, pneumatic type three type is. Bolted Type Cement Silo be divided into mechanical and hydraulic, mechanical due to structural bulky, excessive noise, short life, energy consumption, the defendant has been gradually eliminated; hydraulic hydraulic and pressure can be divided into type (ie diaphragm type). Extruded concrete pump for pumping lightweight concrete, concrete batching plant pressure is small, so the pump short distance. Pneumatic conveying concrete formula with compressed air. Hydraulic diaphragm pump concrete from the hopper, pump, diaphragm control valves, pumps and water tanks and other components.

concrete pump moves classified according to their

Currently the production and use around the world are basically hydraulic testing of Screw Conveyor, one of the most typical hydraulic cylinder piston concrete pump. Development of faster, wider use of concrete pump is cloth rod pump truck. 1, concrete pump concrete pump their moves according to their classification can be divided into towed mobile, fixed, jib and vehicle type and so on. Trailer concrete pumps - installed in the chassis can be towed concrete pump. Stationary concrete pumps - installed in a fixed machine base concrete pumps. Truck-mounted concrete pumps - installed in a motor vehicle chassis Concrete Mixing Truck. Towed concrete pump because with wheels, so both easily moved at the construction site, but also on the road haulage traction, use this form more common in our country. Stationary concrete pumps driven by electric motors and more suitable for large projects, the construction of mobile fewer occasions.

2013年7月29日星期一

poor concrete mix

Ratio adverse pressure gradient concrete block machine in a large place, moisture will penetrate through the aggregate gap, so that aggregate coalescence caused by blocked tubes, occurs in pipe bends, reducers and piping arrangement of hoses at the middle; another concrete water-cement ratio is too large, easy to segregation, resulting in separation of mortar and aggregate plugging, more common in long-distance pumping level when "segregation" blocking pipes and piping down steel cement silo end of the vertical segregation plugging. Too little amount of cement and sand ratio is too low, poor workability of concrete, deformation difficulty increases friction in the pipe, easily plugging. Concrete slump is too low (80mm less), the pumping resistance was significantly increased, so pumping impossible.

foreign plugging concrete delivery

In theory, the most prone to plugging in three large stones in the same section meet clamping, the time section occupied most of stones, negotiable area is very small. Usually provides concrete mixing machine gravel d: D <1:3 (Note: This is the "order" in the detailed provisions, according to the transport height and stones kind of 1:2.5 to 1:5), and the pump hopper located on the square grid, to prevent oversized stone in mixed. When passing 0.315mm sieve sand content is low, even if the concrete other technical indicators are in line with requirements will be plugging. Because these sand in concrete balls from a similar role to reduce the friction with cement mixing machine, to improve mobility in vain, increase the cohesion into water retention, pumpability of concrete greatly. Therefore JGJ/T10-95 "Technical Specification for Concrete Pumping" in the provisions of the sand through the 0.315mm sieve not less than 15%.

concrete pipes

Construction of the hot season, it is appropriate drop cloths wet, warm straw and other covered cement mixing machine, avoid direct sunlight. Construction of the cold season, it is appropriate insulation material wrapped} Queensland concrete pipes, concrete pipes to prevent freezing, and to ensure the concrete into the mold temperature.
When the level of transmission distance over 200m, vertical transmission distance of more than 40m, pipes vertically downward or inclined tubes arranged in front of horizontal pipe, concrete mixes} Queensland unit cement content is less than 300kg/m3, the method must be selected piping and pumping process, it is appropriate large diameter concrete pipes and Concrete block machine tube, pipe and hose less. When transporting concrete pump height exceeds the maximum transmission distance, the available pump Relay (successor pump) for pumping.
In addition, the project should be based on structural characteristics, construction techniques, fabric requirements and piping, etc., choose the fabric device. Plane size should be based on structural, piping conditions and boom length, layout fabric devices, and its structure should be able to cover the entire screen, and can evenly and quickly for fabrics. Fabrics equipment should install solid and stable.

concrete delivery pipe fixed

Vertically upward piping, ground horizontal tube length less than a quarter of a vertical tube length and not less than 15m, or to comply with the requirements of the product manual. In the Y-shaped tube concrete pump discharge port 3 ~ 6m duct at the root should be set off valve to prevent reflux of concrete mixture.
Pumping underground structures, the ground should be horizontal tube axis and Y-shaped tube spout perpendicular to the axis. Asphalt Mixing Plant piping should be inclined tube top design exhaust valve; when the height difference is greater than 20m, should be in the lower end of inclined tube consists of five times the height of the horizontal pipe length; such conditions, increase the bend or coil meet five times the height length requirements.
Concrete pipes fixed, may not be directly supported on steel, formwork and embedded parts, horizontal pipe should be at a certain distance bracket, table mats, spreaders and Wheel Loader, in order to exclude the plugging assembly and disassembly and cleaning pipes; vertical embedded parts suitably fixed to the pipe walls and columns or leave holes at the top floor. In the walls and pillars, each section tube is not less than a fixed point in the hole should be set aside each floor fixed. The lower end of the vertical tube bends, should not be used as the anchor of the upper pipe. Should be established to withstand vertical tube steel support weight. When the vertical tube fixed on the scaffold when the scaffold may be needed for reinforcement. Clamp at the pipe joints shall not leak pulp.

Concrete pump pipe

Concrete pipes, should be based on engineering and construction site characteristics, pouring concrete program for piping. Should shorten the length of the pipeline, less elbow and hose. Cement silo should ensure safe construction, easy to clean pipes, troubleshooting and disassembly repair.
In the same line, you should use the same diameter concrete pipes; together with the new, the 1st pipe, should a new tube arranged in the pressure at the pump; pipeline should be arranged smooth vertical and horizontal. Should draw piping diagrams, lists the various pipe fittings, concrete block machine, pipe and other specifications and quantity presented spare parts list. Concrete pipes should be based on the maximum size of coarse aggregate, concrete pump model, concrete output conveying distance, as well as transportation to choose the degree of difficulty. Pumping duct should be adapted to the conditions and the strength. Should be used no cracks, no bump damage and not bent pipe section. Duct joints should be tight, there is enough strength and capable of rapid assembly and disassembly. Minimum diameter of lOOmm duct, the maximum size of coarse aggregate not exceed 25mm, the minimum diameter of 125mm, the maximum particle size must not exceed 40mm.

concrete pumps and pipes

In the concrete pumping process, with the pumping pressure increases, the force impact of the pumping tube back and Bolted Type Cement Silo, which not only loss of the pumping pressure, and is the connection between the pump tube is pulled by the shocks and intermittent condition that can lead to premature damage control card and apron, slurry overflow, the pump must be fixed.
Concrete pumps and pipes connected, the concrete pump manual should conduct a comprehensive inspection requirements, to meet the requirements for air operation only after the boot. No-load operation after 10min, and then check the agencies or systems are working properly.
In the hot season, construction, suitably wet straw, wet drop cloths covered concrete pipes and concrete batching plant in order to avoid direct sunlight to prevent the collapse of the concrete due to excessive losses caused by falling degrees plugging.
In cold winter areas of concrete pumping construction, the insulation should take appropriate measures, it is appropriate insulation material encased concrete pipes, concrete pipes to prevent freezing.

concrete pump placement scheme

Characteristics and should be based on the construction site pouring concrete programs piping, piping design should check whether the distance pipeline horizontal scaling and Concrete Mixing Truck distance adapt. Piping should be possible to shorten the length of the pipeline, less elbow and hose. Pipeline laying pipelines should be easy to clean, troubleshooting, and disassembly and maintenance. When the new pipe and the old pipe mix, should the new pipe installation at the pumping pressure. Piping process should draw piping diagrams, lists the various pipe fittings, pipe clamp, pipe and hose size and number, etc., and provide a list.
Piping to be straight up, with the increasing height of the potential energy increases, the concrete presence of reflux trends should therefore be concrete pump with vertical piping between a Concrete mixer of horizontal pipe laying, to ensure there is enough to stop the resistance of concrete reflux. When pumping concrete high-rise building vertically upward piping is required, then it should not be less than the length of the ground level tube vertical tube length is 1/4. As a result of limited space, these requirements can not be placed when the length of the pipe, or hose pipe can be used instead.

2013年7月28日星期日

hydraulic system using

Concrete mixer truck in each system, the hydraulic system is the most important and most delicate working parts, it is especially important to use and maintain. Domestic manufacturers mixer using hydraulic motors, hydraulic pumps and gear are mostly imported parts, the typical configuration shown in Table 1.
Concrete Mixing Truck hydraulic system works detailed in Figure 1. When the device by manipulating the lever to the left of the variable rotation, the pump began to drain from the oil port A, the high pressure tubing into the motor, the motor rotates the motor oil flowing into a low pressure oil through another stream pressure tubing from B back to the pump. Variable rotation angle larger rod, pump oil discharged per revolution on the more, the higher the speed of the motor. When the manipulated variable stalk it turned Concrete mixer, then the pressure oil discharged from the B port, change the motor rotation, low pressure oil pump flows back from the A port. Rotation of the motor driven gear, so that the mixing drum mixer to a certain speed range CVT with two rotation. Other hydraulic systems on the same principle.

concrete mixer truck minimum steady speed

Minimum steady speed is a measure of whether the truck better steady easing into the ready-mixed concrete mixing machine, and makes its inlet accurate ready-mixed concrete batching plant located on the discharge port of concrete block making machine. ["Concrete mixer truck" (JG/T5094-1997)] specified in 5.1.15c: (truck) should be able to not more than 5km / h speed stable driving. "Technical conditions" in a type test according to "private car styling test procedures" (QC/T252) provides for a minimum steady speed test items.

concrete mixer truck's speed

Vehicles belonging to urban transport type vehicles, most of its transport time to change directions, yield to pedestrians and vehicles traveling movements, not possible to do maximum speed. Asphalt Mixing Plant, the truck is refitted by the chassis, the vehicle center of gravity than the center of gravity chassis before modification has significantly increased; while its transit led the concrete mixing drum, rotate it toward the center of gravity offset mixing drum rotation direction, thereby the axis of concrete mixing machine tube to the center of gravity in the vertical plane, so that affects the vehicle driving stability, easy to roll when cornering, especially at high speeds, it will result in a higher rollover accident rate. Jicha Sharp, and are often the main cause truck overturned.
Based on the above understanding, their high center of gravity vehicles, driving traffic complexity, as a city truck that objective existence, in its use should pay close attention to the driving stability and prevent rollover. Manufacturers should not be highlighting its maximum speed when not possible consequent rollover accidents caused warnings to be effective. But not in manual annotation within the chassis for the vehicle maximum speed maximum speed, does not explain the actual driving should comply with "technical conditions" states: "The agitation speeds, maximum speed shall not exceed 50km / h". Therefore, the manual should be fully expressed at high speed will bring high risk of rollover accidents.

concrete mixing transport speed limits

The car is the car's maximum speed dynamic three indicators. Screw Conveyor manufacturers attach great importance on this indicator will be listed as an important performance indicators.
In fact, all the cars speed tests are conditional restrictions. "Technical conditions" states: truck's maximum speed test is to perform "car Maximum speed test methods" (GB / T 12544); minimum speed of the test is to perform "car lowest steady speed test" (GB / T 12547)). However, for the determination of these two speeds venue requirements and are in accordance with "car road test method General" (GB / T 12534) concrete batching plant that "unless otherwise specified road test, the performance test shall be clean, dry , flat, paved with asphalt or concrete road on the line of road length 2 ~ 3km, width of not less than 8m, longitudinal slope of 0.1% during this period. " It can be seen, the highest truck (low) speed data tests are specifically designated carried out on the straight road.

concrete mixer truck maintenance and repair

Concrete mixer truck for Concrete block machine and repair of Concrete Mixing Truck for transportation vehicles, in the maintenance and repair must comply with the Ministry of Communications Decree No. 13 of 1990, the Executive "periodic testing, mandatory maintenance, repair, as appropriate," the maintenance and repair system . Under this premise, combined with the actual situation of the concrete mixer truck, good maintenance and repair.

Maintenance Drive

The role is to drive drive rotation concrete tank, which consists of power take off, cardan shafts, hydraulic pumps, hydraulic motors, concrete block machine, hydraulic tank and the cooling device component. If this part of the work is stopped due to a fault, concrete tank will not rotate, which causes the car scrap concrete, serious and even make the whole tank of concrete condensation in the tank, causing the concrete mixer truck scrapped. Therefore, whether the drive is in use must be highly reliable and important issue. In order to ensure sound and reliable drive, you should do the following maintenance work:
a. Universal rotation part is failure-prone area, should when greasing and regular checks of wear, and timely repair replacement. Team should spare cardan shaft assembly, in order to ensure the event of failure can resume work in a few minutes.
b. Ensure the hydraulic oil clean. Concrete mixer truck working environment, we must prevent sewage sediment entering the hydraulic system. Hydraulic oil according to the user manual require periodic replacement. Once the inspection found that the hydraulic oil mixed with water or steel cement silo, we should immediately stop cleaning hydraulic systems, replacement of hydraulic oil. c. Ensure the hydraulic oil cooling effect. To regularly clean hydraulic oil cooler, to avoid clogging the radiator is cement Check the radiator electric fan is functioning properly, prevent hydraulic oil temperature exceeded. Just be sure the hydraulic oil hydraulic parts cleaning, general fault much; But different manufacturers, the service life is not the same.

cleaning concrete tank (mixing tube) and expected out

Since concrete solidified into lumps in a short time, and the steel and paint has some corrosion, so Concrete mixing plant after each use, wash and adhere to the concrete tank on the material inlet and outlet of the concrete is a daily maintenance must work seriously. Including:
a. Rinse with water before each filling inlet, so that when the inlet kept moist during charging;
b. At the same time charging comes to vehicle wash water tank filled with water;
c. After loading washing Inlet, near the mouth of the feed residue washed concrete;
d. To the site after unloading,concrete batching plant, and then added to the concrete tank cleaning water within 30-40 L; return the vehicle to keep the concrete tank forward slow rotation;
e. Remember to let go before the next charging within the concrete tank sewage;
f. Each day when the concrete tank and thoroughly clean out material around the mouth, to ensure non-stick cake with cement and concrete. These work for as long as one is not careful, it will give the future work of great trouble.

2013年7月26日星期五

Concrete mixer truck unit

Mixing device consists of mixing tube and auxiliary support components. Mixing tube is concrete block machine, concrete along the blade rotating spiral direction, constantly upgrading and turning process by mixing and stirring. In the feeding and transport process, the mixing tube is transferred, the concrete along the blade inward movement, the material, the mixing tube reversal, concrete discharged outward along the blade.
Stirring blades are the main components of the device, can cause damage or excessive wear uneven steel cement silo. In addition, if the angle of the blade design is unreasonable, but also to make concrete appear segregation.
Cleaning system's main role is to clean the mixing tube, also sometimes used for transportation of dry material mixing drum. Cleaning system is also a cooling effect on the hydraulic system.
Fully enclosed device using rotary sealing technology, sealing the mixer's expected out to solve the traditional mixer water evaporation, mortar layered, concrete material spilled, traffic safety and other issues.

concrete mixer truck structure

 1 take power plant
Domestic Concrete Mixing Truck using the main vehicle engine power take way. Power take off unit's role is to take power by manipulating the engine power switch will remove the hydraulic system driven by the mixing tube, the mixing tube in the feed and transportation process forward rotation, in order to facilitate feeding and stirring concrete, in the discharge when the
Screw Conveyor, after the end of the working of the engine power off coupling.
2 hydraulic system
The power take out the engine power, converted to hydraulic energy (displacement and pressure), and then the motor output to mechanical energy (speed and torque), the rotation of the mixing tube to power.
3 reducer
The hydraulic system motor output speed reducer, then transmits the mixing tube.
4 control mechanism
(A) control the mixing drum rotation direction, so that the feed and transportation process forward rotation, reverse rotation when the material.
(2) controlling the rotational speed of the mixing tube.

concrete mixer truck

Concrete mixer truck concrete mixing by the vehicle chassis and special transport device component. China's production of Concrete Mixing Truck chassis to use more vehicle manufacturers to provide two types of common chassis. Its private institutions including PTO, after mixing tube bracket, gearbox, hydraulic systems, the mixing tube, steering mechanism, cleaning systems. Vigorously company specializes in producing Dongfeng Hercules cement mixer, Dongfeng Tianlong cement mixer, concrete mixing machine Sinotruk Ho Yuk, Steyr Jin Wuzi cement mixer, cement mixer Nissan liberation Shuangqiaoshan cement mixer, Valin Star Ma cement mixer, Hongyan cement mixer, cement mixer Shuangqiaoshan Auman.
Working principle is that by taking the power plant will power the car chassis removed and driven variable displacement pump hydraulic system, the mechanical energy into hydraulic energy pass quantitative motor, motor and then drive reducer, reducer driven by the stirring device for concrete stirred.

small mixer

2 cubic -6 cubic capacity of the mixer referred to as a small mixer.
 Bolted Type Cement Silocan be widely used in mining, tunneling, township, village, town roads, water conservancy, the tail of large-scale projects, short-term, small-scale projects, micro mixing station, subway, defense and other projects. Right to engage in limited, width, length, with a narrow body, short wheelbase, small turning radius, flexible, high efficiency personalized design features. Currently, special automotive products covering bulk cement truck, truck-mounted concrete pump, concrete pump truck,concrete block machine, dump truck, garbage truck hook lift, aerial vehicles, concrete mixers, vacuum suction truck, vacuum sewage truck, compression garbage truck, multi-pressure cleaning truck, arm-in Self-loading garbage trucks thirteen series.

concrete mixer laws and regulations

Domestic tractor axle length restrictions more stringent, but this one basically non-existent in the mixer, 6x4 mixer have done 12 square, 8x4 or even do 16 side. In 6x4 mixer, for example, 2.4 tons per ton of concrete calculation, 12 square is 28.8 tons, 6x4 mixer vehicle weight 14-15 tons, far more than the domestic steel cement silo limit. Such car ran very dangerous in the city from time to time there is an accident mixer wounding tragedy.
Semitrailer mixer biggest advantage is the number of axes more loading capacity greater, but if strict accordance with concrete mixing machine regulations, we can only install 14 square so, this environment is estimated that no one will buy it. If and cycling as overloading, do 20 square, 25 square even larger tank, which will result in a vicious cycle overload, harm not only to the big road, but also a serious threat to the safety of pedestrians.

concrete mixer discharge into

Whether concrete mixer feed or discharge are normally filled by reversing into the Concrete block machine or discharge opening, trailer reversing more difficult, in order to pour the material inlet of the discharge port are more trouble, in a certain extent, affect operational efficiency.
And there are concrete transport on the time requirements, generally emptied from feeding to feeding time can not exceed 90 minutes. Another very important point is that now are in accordance with the domestic Wheel Loader square to calculate the price, less a trip to earn a trip less money. Mixer semitrailer purchase price than ordinary bicycles a lot more expensive, domestic users are more sensitive to price, which in the promotion is a major problem.

2013年7月25日星期四

Conveyor heat curing repair

1 according to the size of belt breakage, damage along at least four weeks large out 15 ~ 20mm, cut repair lines drawn to the miter angle of 45 degrees, and the plastic Concrete mixing plant is damaged, cut careful not to damage the fabric layer or below wire layer.
(2) the conveyor angle grinder with damaged parts with tungsten steel grinding disc for deep grinding, sanding recommended 3mm.
2 would be a good grinding belt reinforcing layer or the fabric Screw Conveyor reinforcing layer, the reinforcing layer, damaged parts for brushing heat curing agent, the unvulcanized rubber core around four diagonal cut, heat curing agent in the same manner Brushing tile (the size of unvulcanized rubber surface with the damaged parts of the same size).
3 Use the thermal curing or vulcanizing machine repair pressure, heat curing.

cold conveyor belt vulcanizing patch

1 belt damaged parts will fit with the angle grinder for grinding tungsten steel grinding disc.
2 According to the size of damaged parts conveyor select the appropriate semi-vulcanized layer conveyor belt repair sheet or patch strip (strip or patch repair a damaged piece at least large parts of 15 ~ 20mm) Yin U.S. special recommended to use a semi-vulcanized layer repair section , Wheel Loader, without a layer of semi-cured adhesive surface of the material proposed to conduct in-depth polished.
3. The Asphalt Mixing Plant repair of damaged parts and semi-vulcanized rubber belt surface for brushing, dry for a while, and then the second time brushing (dry set to sticky until normal circumstances usually within five minutes) .
4 would be posted on the conveyor belt repair section straightened polished surface with a rubber hammer or compactor wheel to beat compacted out of the air.
Tips: If the ambient temperature is too low or a hot air gun is recommended tungsten heating 0.5-1 hours, allowing an appropriate extension of time if the heating time, will help increase the strength of the adhesive surface.

Teflon conveyor belt

Also known as Concrete block machine Teflon iron, PTFE and high temperature conveyor belt, Teflon conveyor belt of conveyor belts and Teflon high temperature Teflon mesh cloth two kinds, both of which are glass fiber cloth coated with Teflon resin as the base material, made of Teflon (PTFE) fabric belt; wherein Teflon mesh conveyor mesh size in order to define the specifications, a 1 × 1MM, 2 × 2.5MM, 4 × 4MM, 10 × 10MM such as mesh, and according to the different sub-warp and weft and single weft and double weft Teflon mesh conveyor belt; Teflon high temperature is based on the thickness of cloth to distinguish specifications, the thinnest up 0.08MM.
Teflon conveyor belt with breathable mesh easily characterized, so it is widely used in textile printing and dyeing, printing, drying belt, screen printing, UV drying, UV series, light curing machine, Screw Conveyor, loose dryer, woven drying machine, high frequency drying machine, food baking machine belt, drying room temperature, flux-based fast drying ink drying and general moisture goods and other equipment.

Metal Conveyor Product Applications

Metal Conveyor features labeled
Mobility pipeline metal band, Wimbledon with a high resistance to heat treatment furnace; stainless steel mesh belt; concrete batching plant; tunnel kiln belt; long urban zone; drying belt; coating equipment belt; spraying equipment belt; washing machine belt; foods belt; food cleaning conveyor plate; stainless steel chain plate; herringbone mesh belt; dual spin energy belt; injector cooling belt; B fonts belt; baffle conveyor; chain conveyor; fruit and vegetable washing belt; Freezer chain network; single-freezing machine chain network; frozen horseshoe network chain; vegetable dehydration line equipment dedicated conveyor net.
1, food biscuit industry: mesh belt, mesh belt cooling injection machine, bending machine belt, chocolate coating machine B-shaped belt. While the production of biscuits machinery, spraying eggs and meat machine conveyor belt B B belt, imports of machinery and energy-saving ultra-thin mesh belt.
2, instant noodles and rice industry; network with steamed, fried boxes, hanging drying boxes, shredded knives, Cement silo, face cutter, face comb, pivot, forming boxes.
3, a variety of frozen food, dehydrated vegetables, topped with stainless steel pipeline equipment chain conveyor chain. Conveyor chain, belt, support shaft.
4, glass mesh belt furnace, decorating furnace mesh belt, bottle machine belt, mosaic mesh belt, specifications crank type, straight shaft, diamond, double helix model.
Materials are A3 low carbon steel, DCY13 heat-resistant steel, ICY18N19Ti, steel, oor18Ni14Moo2Cu2 acid resistant steel. Furnace conveyor belt commonly used material for the 310S, 314, high temperature of above 1100 ℃.

Products

⑴, general conveyor belt (including high-strength nylon conveyor belt) product implementation GB7984-2001 standard.
General conveyor belt:
Cover: Tensile strength not less than 15Mpa, tearing elongation of not less than 350%, the amount of wear ≤ 200mm3, interlayer adhesion strength between layers longitudinal sample average of not less than 3.2N/mm, concrete block machine and cloth layer covering not less than 2.1 N / mm full thickness of the longitudinal elongation at break of not less than 10% full thickness longitudinal reference force elongation of not more than 1.5% Nylon (NN), polyester (EP) conveyor belt:
Cover: Tensile strength not less than 15Mpa, tearing elongation of not less than 350%, the amount of wear ≤ 200mm3 interlayer adhesion strength between layers longitudinal sample average of not less than 4.5N/mm, plastic and Concrete mixer covering not less than 3.2 N / mm full thickness of the longitudinal elongation at break of not less than 10% full thickness longitudinal reference force elongation of not more than 4%.
⑵, three resistant conveyor belt (heat, acid, alkali) product implementation HG2297-92 standard.
⑶, fire-retardant conveyor belt products perform MT147-95 standards.

Specification

Depending on the requirements of the environment and is divided into many different sizes and types:
1 according to the customer according to the width can be arbitrarily cut;
(2) by the use of the environment, divided into ordinary conveyor also includes (ordinary type, heat-resistant, concrete batching plant, resistant to burning type, acid oil-resistant), heat-resistant conveyor belt, cold conveyor belt, resistance alkali conveyor belt, oil resistant conveyor belt, food conveyor and other models. Where ordinary food conveyor belt and the plastic cover on the minimum thickness of 3.0mm, under the plastic cover a minimum of 1.5mm; resistant conveyor belt, cement mixing machine, acid and alkali resistant conveyor belt, oil resistant conveyor belt cover rubber minimum thickness of 4.5 mm, under the plastic cover a minimum of 2.0mm. Depending on the specific circumstances of the environment can be 1.5mm to increase the thickness of the upper and lower plastic cover;
3 Follow belt tensile strength fabric layer is divided into ordinary conveyor belt, steel cord conveyor belt. Powerful canvas into nylon conveyor belt (NN conveyor belt) and polyester conveyor belt (EP conveyor belt).
Additional information: strong steel cord conveyor belt layer polyester canvas (EP), also divided into type EP100, EP150 type, EP200 type, EP250, EP300 type, EP350 type, EP400 type, etc.; also be a nylon canvas (NN) can be divided into NN100, NN150, NN200, NN250, NN300, NN350, NN400, NN450, NN500 type.

Conveyor Product Structure

Products using multilayer cotton canvas for hanging plastic skeleton, covered with good performance of the rubber material, the vulcanization and manufactured.
Conveyor series products are ordinary cotton cement mixing machine, Nylon (NN) Conveyor (divided into NN-100 type, NN-150 type,NN-200 type, NN-250 type, NN-300 type, NN-350 type, NN-400 type), polyester (EP) band (divided into EP-100 type, EP-150 type, EP-200 type, EP-250 type, EP-300 type, EP-350 type, EP-400 type), the inclination (corrugated wall) conveyor belt, skirt baffle conveyor belt, endless conveyor belt, pattern conveyor belt transporting materials as different { and the transmission angle of different sizes, shapes and height requirements of different patterns. Common pattern conveyor varieties such as: herringbone pattern conveyor belt (herringbone conveyor including convex, concave herringbone conveyor belt), figure eight pattern conveyor belt, fish bone pattern conveyor belt, U-shaped pattern conveyor belt, cylindrical pattern conveyor belt, pitting pattern conveyor belt, etc., grass-type pattern conveyor belt, or according to user requirements and design}, concrete batching plant, PVC or PVG whole flame retardant tapes; and can provide a variety of special properties of conveyor belt (general retardant conveyor belt, heat conveyor belt ignition resistance, high wear conveyor belt, conveyor acid, alkali conveyor belt, cold conveyor belt, oil resistant conveyor belt, heat resistant conveyor belt, high strength conveyor belt and food conveyor belt, Teflon conveyor, stainless steel conveyor belt, chain conveyor belt, conveyor belt).

Conveyor

Also known as transport conveyor belt, belt conveyor belt for carrying and transportation of materials from the role of rubber and fiber, metal composite products, Concrete Mixing Truck and fabric composite products. Belt conveyor in agriculture, industrial and mining enterprises and transportation are widely used to transport a variety of solid lumps and powder-like materials or items, conveyor belts for continuous, Asphalt Mixing Plant, large inclination transportation, conveyor safe operation, Conveyor easy to use, easy maintenance, shipping cost, and can shorten the transport distance, reduce project cost, saving manpower and resources.
?Conveyor is widely used in cement, coking, metallurgy, chemical, steel and other industries conveying distance shorter throughput smaller occasions.

The main parameters of the conveyor

Conveyor general material handling system according to the requirements of a variety of concrete mixing machine location conditions, the production process and material characteristics and the like to determine the main parameters.
1, the transmission capacity: conveyor conveying capacity refers to the unit of time the amount of material transported. In transport bulk materials, transportation of materials per hour mass or volume calculations; during transportation into items, the number of pieces per hour transport calculations.
2, delivery speed: increase transmission speed can increase transmission capacity. In order to make the traction belt conveyor length pieces and large, the conveying speed increasing day by day. But high-speed operation of the belt should pay attention to vibration, Concrete mixing plant, and start braking and other issues. For chains as traction element conveyor, conveyor speed should not be too large to prevent increased dynamic loads. Simultaneous process operation conveyors, conveyor speed production process requirements should be determined.
3, scantlings: Conveyor belt width dimensions include components, slat width, hopper volume, pipe diameter and vessel size. These have a direct impact scantlings conveyor conveying capacity.
4, the transmission length and angle: transfer line length and inclination of the conveyor directly affect the size of the total resistance and the power required.

conveyor implications related technical parameters

Conveyor is a big category, refers to a certain line of material handling machinery cement mixing machine of materials, also known as continuous conveyor. Conveyor can be horizontal, inclined and vertical conveyor can also be composed space transmission lines, transmission lines are generally fixed. Conveyor conveying capacity, concrete block machine, but also in the transportation process while completing a number of process operations, so widely used.
Design parameters are mainly two categories, one for the design of constant, which is based on the objective laws, the specific conditions as determined by the known data or parameters given in advance. Another type of design variables, it is designed for the changing needs can be determined by structural parameters.

Screw blocking material appears to be a solution summary

Screw together for granules, powder and small horizontal conveying bulk materials inclined conveyor, vertical transportation and other forms, the transport interval from 2 meters to 70 meters variety of specifications, and according to customer demand. Conveyor blocking occurs How to solve material:
How to solve the blocking material appeared screw conveyor is minerals, feed, grain, construction top uses a broader transportation equipment, screw conveyor together for granules, powder and concrete block machine conveying bulk materials inclined conveyor, vertical conveyor other forms, its transport interval from 2 meters to 70 meters variety of specifications, and according to customer demand. The most common failure is clogged. Clogging many reasons, mainly to prevent clogging may take the following measures:
Entering the conveyor materials for the necessary cleanup, to prevent large complex or fibrous impurities into the machine causing blockage. Install hopper and clogging material level sensor, automatic control and alarm. Increase the spout or lengthen trough ends to address poor or too late nesting nesting problem.concrete batching plant, also in the material outlet chute ends a short anti-rotation vanes mounted to prevent blocking material ends.
In attempts to prevent the discharge opening of a valve cover plate. Blockage occurs because the accumulation of materials, open the top attempts to prevent the door limit switch through the same intercept power. Minimize the transverse dimension of the intermediate hanger bearings to reduce the material through the intermediate bearing blocking material when possible. Reasonable choice of the technical parameters, such as slow speed can not be too large. Strict implementation of control procedures, so that no load starting, empty parking; ensure continuous average feed.
Screw conveyor is a continuous material handling machinery, due to the continuous conveyor working principle, structural features, the direction of transport of materials and methods and a range of other characteristics are different, so variety. In the screw conveyor design is mainly based on the nature of transportation of materials, transport capacity, transmission distance, transmission angle, screw conveyor speed to determine the productivity and power.

screw conveyor works

 screw conveyor works:
 Rotating spiral Asphalt Mixing Plant is the use of the material to be transported along the passage of a fixed chassis for transporting work to move the head and tail bearing housing, the hanging bearing sliding bearings with dust seals, bearings generally use powder metallurgy, transport cement using blankets bearing, shaft and concrete mixing machine with hanging sliders connection.
 Screw conveyor in accordance JB/T679-95 "Screw" design and manufacturing standards, is GX type screw conveyor replacement.

Single-tube conveyor

I. Overview
 Tubular screw conveyor industrial and agricultural sectors are the main units of mechanized transportation work, make transportation work to reduce labor intensity and improve working efficiency, wide range of applications. Applicable to all industries, such as building materials, chemical industry, electric power, metallurgy,concrete block machine, grain and other industries, for horizontal or inclined conveying powder, granular and small bulk materials such as coal, ash, slag, cement, grain, etc., the material temperature less than 200 ℃. Screw machine suitable for transporting perishable, Concrete mixing plant, easy caking materials.
Second, the main technical parameters
Tubular screw conveyor main features:
   1 large carrying capacity, safe and reliable.
   2, adaptability, easy installation and maintenance, long life.
   3, the whole small, high speed, to ensure rapid and uniform delivery.
   4, the discharge end with cleaning device, machine low noise, adaptable, flexible layout material inlet and outlet locations.
   5, good sealing, the shell is made seamless, end with flange integrally connected to each other, and good rigidity.

Conveyor trends

① continue to large-scale development. Large transmission capacity, including large-scale, large single length and Wheel Loader, and several other large transport Aspects. Hydraulic conveyor length reached 440 km or more.  Nearly the length of the belt conveyor 15 Male Single Years, and has appeared composed by a number of Taiwan  Contact B two places "belt conveyor path." Many countries  are exploring long Distance, large capacity continuous transport of materials  improved conveyor structure.
② to expand the use of the conveyor. Developments in high temperature, low temperature, corrosive, radioactive, easy Flammable substances in the work environment, as well as capable of delivering fiery, explosive, Pellet, sticky  materials transportation Machine.
③ the steel cement silo  to meet the automated material handling system to control stand-alone asked for. Used as the post office Automatic sorting parcels trolley conveyor sorting operation should be able to meet the requirements.
④ reduce energy consumption in order to save energy, the field of conveyor technology has become an important aspect of research. Has one ton material handling energy consumed by one  kilometer conveyor selection as one important indicator.
⑤ reduce all kinds of conveyors in operation generated dust, noise and emissions.

electrical part of the conveyor installation steps

Concrete mixing plant of the conveyor installation steps:
1 Install cable ducts;
2 Install limit switches, protective devices, cabinet, etc.;
3 Install lamp;
4 laying of cables;
5 Connect the wires.
Install the end of Bolted Type Cement Silo, the damaged portion of the paint according to the technical specifications for fill spray paint. Second, we must Lubricants operating manual provided by the program will add grease or oil added as conveyor equipment: gear, Couplings, cranes, bearing housings, motor bearings.

conveyor installation steps

conveyor installation steps:
1 dash concrete mixing machine;
2 Check the civil construction, view embedded steel anchor bolts and cement mixing machine;
(3) Check the position of the various components of the conveyor;
4 According to bolt truss installation;
5 Installation and adjustment of equipment (including upper and lower rollers, wipers, drives, etc.);
6 Install the belt hoist;
7 Install retractable head;
8 installation guide trough;
9 Install the tensioning device;
10 Install all electrical parts bracket;
11 tape cutting and curing connections.

stainless steel mesh belt conveyor

1 This model can be made of stainless Concrete Mixing Truck, aluminum production. Chain plate may need to use the appropriate materials and  The width of the chain plate. Refer to transport products - flat chain selection
(2) use of different forms of flat chains, enabling transport plane, flat cornering, improved reduction and other functions.
3 The motor can be set up Asphalt Mixing Plant or rack below the top.
4 selectable frequency conversion speed regulation or optional continuously variable gear motor.
5 conveyor can be set to the side baffle mounted on both sides of the control station unit, solid conveying process automation capabilities.
6 users in the inquiry, please provide a detailed transportation of materials, dimensions and requirements of the machine's material, size, speed
Degree, throughput requirements, etc.

bucket elevator works

Bucket elevators simple structure, stable operation, Concrete block machine, hybrid or gravity discharge, bucket elevator Sprocket rim adopts combination, easy to replace, sprocket rim specially treated long life, such as the use of gravity from the lower Move tensioning device, to maintain constant tension, to prevent slippage or from chain, while the hopper meet resistance, a certain Let nature's capacity to effectively protect the moving parts, the material temperature does not exceed 250 ℃.
2, conveying machinery (such as: pipeline, pipeline equipment, transmission lines, hanging conveyor line, concrete block making machine, pneumatic lift, Rack lifts, scissor lifts, roller conveyors, elevators).
Conveyor Type:
Inclined conveyor conveyor waveform wall partition wall conveyor, mobile conveyor mobile conveyor level Mobile conveyor, inclined belt conveyor.
Conveyor equipment is tile machinery, widely used.

Accelerate the development of innovative conveyor

Accelerate innovation and development especially on the belt conveyor electric drum conveyor drive unit has a veryThe important significance. As it has compact structure, high transmission efficiency,concrete batching plant, long life, stable operation Fixed, operational reliability and good sealing, small footprint, etc., and can adapt to a variety of harsh working conditions Work including wet, muddy, dusty and concrete mixing machine. Therefore abroad will conveyor (electric drum drive) Widely used in mining, food, metallurgy and other areas of production, constantly thinking visionary, manufacturing technology does not Continuously improve and continuous improvement of manufacturing materials, belt conveyor will be an unprecedented pace. Protection of bulk material Transportation work efficient, safe, reliable operation, and the social and economic development in the field of continuing to play a more important To significance.

Conveyor structural characteristics

Conveyor without pulling element different structure and composition, working member for transporting the material is not the same.Their structure is characterized by: the use of rotational movement of the work member or reciprocating motion, or by the medium in the pipe Forward flow of the material transported. For example,concrete block machine conveyor member is a series of rollers, the  rollers for rotation Turn movement for material handling; screw conveyor working  member of the spiral, spiral chute rotates in order to Push the material along the chute; vibrating conveyor  working member is trough, the trough is reciprocated to convey placed The materials.
Conveyor will be toward the future large-scale development,
 Concrete block machine, automatic sorting of materials, reduce energy consumption Reduce pollution and other aspects of development. Large transmission capacity, including large-scale, large single length and large transmission angle and other aspects. Hydraulic conveying device Length reached 440 km above the belt conveyor length of nearly 15 km single, and has appeared composed by a number of Taiwan Contact and B two places "belt conveyor path." Expand the  use of the conveyor, is developing at high temperatures, Low temperature corrosive, radioactive, flammable  substances in the work environment, as well as capable of delivering hot, Explosive, agglomerate, viscous material conveyo

2013年7月24日星期三

steps and Handling

Procedure:
1, the column on the function toggle switch to position "Auto" position, press Start switch on the controller, the entire program will run automatically control their own Operation.
2, the whole process has concrete block machine automatically stop running the project for the Transit stop, press the stop button can then be restarted.
3, press the start button, the display shows the start time, slow,Sand, fast, stop, fast, running lights shining on time.
4, automatic control, you must put all the manual functions appropriated stop switch Position.
Operational considerations:
1, detected by measuring the regulation blade and the concrete mixing machine the pot wall shall 3mm ± 2mm, If the gap tolerance, the vertical position of the blade can be adjusted to achieve the specified range Wai.
2, stirring after each use leaf, pot should be clean, Electrical Division Points should avoid strenuous vibration, away from water and heat, pay attention to dust.
Know the mixer to use, in order to better improve project efficiency.

concrete mixer Cleaning Precautions

In concrete mixer cleaning should note the following:
First, the regular maintenance items specified maintenance procedures, maintenance operations Such as cleaning, lubrication,concrete block making machine, etc.
Second, concrete mixer before starting a good first check whether the controller, Downtime and stones into the water after steel cement silo 10 to 15 minutes for cleaning, Then water and Danzi Qing out. If the operator must enter the mixing tube cleaning, In addition to cut off the power and remove the fuse outside, and must lock switch box.
Third, the ban hammer banging method to clear accumulated in the concrete mixer Concrete barrel, only with a chisel clear.
Fourth, in the cold season, wash with water after work mixer drum And water pumps, water tanks, water pipes inside the net, and in order to avoid water pumps, water tanks,Frozen water pipes.

concrete mixer Precautions

1, concrete mixer should be set at a flat position, with square wooden paving ago Rear axle, so that the tire resting high overhead, avoid walking in motion occurs.

2, concrete mixer should implement two leakage protection, power supply before work Once connected, you must carefully check that pass through the empty test switch before the Purposes. Concrete Mixing Truck speed should be tested during commissioning is appropriate, under normal circumstances, Empty weight speed car (after loading) slightly faster 2 to 3 rpm, such as a difference of more, Wheel should be adjusted to the ratio of the transmission gear.

3, mixing drum shall comply with the direction of rotation direction of the arrow, as inconsistent with reality, Electrical wiring should be corrected.

4, check the drive clutch and brakes are flexible and concrete block machine, with rope No damage, track pulley is good, around various parts of the barrier  Lubrication and so on.

5, after the boot, always pay attention to the various components of concrete mixer is functioning Normal. Shutdown, always check whether concrete mixer blade bent, Has knocked out or loose screws.

6, when the concrete mixing is completed or anticipated stop more than 1h, in addition to the more than Cement silo, the application of gravel and water poured into the shaking barrel, boot rotate the stick Rinse the mortar on the barrel after all unloading. Barrel may not have water To avoid the barrel and leaf rust. Should also be cleaned outside the mixing tube fouling, So that the machinery kept clean intact.

7, after work and shut down when not in use, you should wind up power, and lock the switch box To ensure safety.

concrete mixer Practice

1 stirring empty before concrete batching plant.

2, according to the mixing time to adjust the time relay time, pay attention to the situation in the powerCase adjustments.

3, the water wet mixing tube and leaves and venue.

4, processes such as electrical orcement mixing machine should occur unloading part mixing materials, reducing Light load, troubleshooting and then drive operation.

5, the operation used, should be inspected regularly to prevent electric shock and mechanical injury People and other accidents.

6, the test is completed, turn off the power, clean the mixing tube and venue, cleaning Wei Health.

Mixer Function

So that all components of the macro-and micro-uniform.
Destruction of cement particles concrete batching plant and promote the development of diffusion phenomena.
The initial damage to the surface of cement particles hydrate film wrapped layer
To promote inter-particle Screw Conveyor material to reduce the impact of dust film.
Mixing materials each unit increase in the number of sports bodies and the intersection of the trajectory.
Frequency, acceleration homogenized.

concrete mixer maintenance

1 maintenance of the body clean and remove dirt on the body and obstacles.
2 Check the lubrication and Concrete Mixing Truck and control equipment, Bolted Type Cement Silo, plus Note lubricants.
3 class before working in the mixing water cylinder idling 1 - to 2min, while Check clutch and brake units working reliability.
4 concrete mixer operation process, should be ready to listen seized motor, reducer Device, transmission gear noise is normal, temperature is too high,
5 class after work, should be carefully cleaned concrete mixer.

concrete mixer Description

Since the fall mixer has a long history, as early as in the 20th century, from the concrete batching plant Machine-driven concrete mixer drum cartridge has begun to emerge. 50 years later,  Reversal discharging the concrete mixing machine and tipping style double cone blender and stir split barrel Mixing machines have come out and be developed. Self-loading concrete mixers mix Cylinder wall of the mixing blades arranged radially. Work, mixing drum about its water Horizontal axis rotation, adding mix barrel materials, is raised to a certain height blade Degrees, by the weight of the whereabouts of this cycle of movement, to achieve uniform mixing Mixed results. Self-loading concrete mixer simple structure, generally stir Mixed plastic concrete based.
Compulsory mixer from the early 1950s after the rise, has been rapidly Development and promotion. First there is the disc vertical shaft forced concrete mix Mixing machine. This mixer is divided into two kinds of turboprop and planets. 19th Century 70 Years later, with the application of lightweight aggregate, there has been a circular groove horizontal shaft forced mixing Mixing machine, which in turn sub-single-shaft and twin-shaft two kinds of lying, both self-loading and strong Made in two mixing characteristics. The linear velocity of the stirring blade is small, good wear resistance And low energy consumption, faster development. Forced concrete mixer mix turn the barrel Stirring blades mounted on shaft arm, add mixed material tube, the mixing leaf Sheet under strong agitation to form a cross stream. Cement silo method than Since the fall agitation effect strongly, mainly suitable for mixing dry concrete.
Continuous concrete mixer equipped with a spiral mixing blades, a variety of materials After continuous mixing ratio respectively weighed into the mixer, mixing well mixed Concrete continuously outward from the discharge end of the unloading. The mixing time is short mixer, The production rate, the development of attention. With concrete materials and construction technology development, and have appeared in many New structure of concrete mixers, such as steam heated mixer, supercritical Speed mixer, sonic mixer, a wobble plate type stirring blade without mixing  Machines and secondary mixing of concrete mixer and so on.

concrete mixer Category:

Press the intermittent nature of the work (batch) and continuous; press mixing principle of Since the fall and steel cement silo; according to the installation of fixed and mobile; press the Material way of tipping and non-tipping; structure by mixing drum of pear type, concrete block machine, double cone, disc vertical shaft and horizontal axis circular groove and so on.
Concrete mixer
1, according to the nature of the work:
(1) periodic work blender;
(2) continuity of the work of the mixer.
2, according to the principle of mixing:
(1) self-loading mixer;
(2) compulsory mixer.
3, according to the shape of mixing drum:
(1) Drum Cartridge;
(2) cone;
(3) disc.
In addition, the mixer is also divided into cracked cylinder and circular trough (ie horizontal axis) was stirred Machine.

concrete mixer Profile

Concrete mixer is to cement, sand and gravel aggregates and water are mixed and mixed into mixed steel cement silo machinery. Mainly by the mixing tube, feeding and discharging mechanism for Water system, the prime mover, transmission, chassis and supporting devices and other components.
Concrete mixers, including through the shaft and the transmission power mechanism connected And driven by the drive mechanism of the drum, the drum drum drum barrel tops around The ring body is provided, concrete batching plant meshing with the ring gear set. The real With a new simple and reasonable structure, the use of gear, ring gear, may have Efficiency to overcome the rain and fog weather, roller and blenders slippage between the rollers; Transmission mechanism can be used to further ensure the elimination of roller and roll mixer Slippage between the barrel.

stabilized soil mixing station operations Troubleshooting

First, there will be failure of the gas source
This failure occurs mainly in air compressor and pressure reducing valves and piping and compressed air Wheel Loader component of these places and so on. Since the low pressure is not high, usually
Adjusting spring break and there will be ruptured diaphragm, this time we must Timely replacement. With a slow rise in pressure, under normal circumstances Are clogged filter to be cleaned so often.
Followed by the failure of the cylinder
Since the cylinder and the cylinder has a leak outside of the phenomenon, in general, Are due to the eccentric rod installation, lubricating oil supply shortage, seals and Sealing ring worn or damaged piston rod cylinder with bruises and other impurities and made Into. We should timely adjust the position of the center of the piston rod to concrete block making machine check the reliability, but also timely for cleaning.
There is a failure of the valve
Since the pilot solenoid valve, exhaust hole is easy particularly blocked, Sealed lead lax activity causing death card spool will be the circuit so Barrier. In this case, we should be promptly cleaned. Through the above description, we stabilized soil mixing station out of the failure to And the solution have a certain understanding. If you have any better suggestions and Comments please do not hesitate to contact us.

2013年7月23日星期二

cement mixer operating instructions

1, in the cement mixing machine truck must be checked before the job, make sure steering,Brakes, lights, sensitive and effective signaling system, mixer truck rollers and slip No crack and severe damage grooves, the stirring blades wear in the normal range, the bottom Between the disk and the sub-frame U-bolt connection is good.

2, to understand the construction requirements and site conditions. Choose Driving Directions and parking placesPoint.

3, on the roads in the concrete block making machine abide by traffic rules. Turning radius  should Meet the specification requirements, speed of not more than 15km. Stop speed of not Greater than 5km.

4, operation, non-touch rotating rollers and tires.

5, in the concrete mixer reversing discharging, must obey the command, note Personnel around, abnormal immediately stop.

6, is prohibited in the high-voltage lines under concrete mixer cleaning operations.

major components of cement mixer

From the vehicle chassis, Concrete Mixing Truck, transmission, water supply

devices and other components. Due to technical bottlenecks, domestic mixer's

 four pieces of hydraulic motors, variable Piston, gear, coolers full of

imported parts.Mixer consists of: two types concrete mixing machine, powertrain,

hydraulic systems, racks, stir Mixing tank, and out equipment, water supply

systems,control system, ladder and other parts. Mixing tank front end coupled

with the gear installed in the rack before the stage, the back-end through 

Raceway installed in the rack backstage two roller support.

2013年7月22日星期一

cement mixer works

Also known as the cement mixer concrete mixer, mainly used for concrete mix

Transport of cement mixing station.Cement mixer mainly dedicated accessories, including power take off, the mixing tube before and after stent, Gearbox, hydraulic systems, the mixing tube, steering mechanism, cleaning systems, etc.. Wheel Loader the power take off power to the car chassis removed and A hydraulic pump to drive the hydraulic system, the mechanical energy into hydraulic energy to pass fluid  Pressure motor, motor and then drive reducer, reducer driven by a mixing system,Stirring of concrete.
1 take power systems
Domestic use of concrete mixer truck chassis engine power take off mode. Power take off  The role of device drivers by full power out of the engine power, the   Hydraulic system driven mixing tube, the mixing tube in the feed and transportation process forward  Rotation, in order to facilitate feeding and stirring concrete, in the discharge ReverseRotate, cut off after the end of the work with the engine power connection.
2 hydraulic system
Hydraulic steel cement silo function is to take power motivation into hydraulic energy (Displacement and pressure), and then the motor output to mechanical energy (speed and torque), To provide power for the rotation of the mixing tube.
3 reducer
The speed of the hydraulic motor output after deceleration, passed the mixing tube.
4 control mechanism
4.1 Control mixing tube rotation direction, so that the transport process in the feed and Chiang Kai-shek Rotation, reverse rotation when the material.
4.2 Control the speed of the mixing tube.
5. Mixing system
Mixing device consists of mixing tube and auxiliary support components. Mixing tube Loading of the concrete container, the blade is rotated along the spiral direction of the concrete  Movement, constantly upgrading and turning process by mixing and stirring. In Feeding and transport process, the mixing tube is transferred, transported to the inside concrete along the blade Move, the material, the mixing tube reversal, concrete discharged outward along the blade. Stirring blades are the core components of the device, can cause damage or severe wear Concrete mixing uneven. In addition, if the angle of the blade design is unreasonable, But also the Concrete block machine appear segregation.
6 cleaning system
The main function of cleaning system is to clean the mixing tube, is sometimes
used for transportation purposes In the dry material mixing drum. Cleaning system is also a cooling effect on the hydraulic system.
7 Cooling system
Cooling system using high temperature cycle oil for hydraulic pumps, hydraulic motors at work too Process heat generated through the heat sink and fan dissipate, avoid heat build Into the hydraulic system damage and malfunction.
Cement mixer for mixing different volumes, different manufacturers and different chassis  Will lead to the use of different mixer accessories and layouts. But it works both Are the same.

Cement mixer Precautions

1, when the car started, it must steel cement silo a comprehensive inspection and test, allNormally, the only official use.

2, the transmission capacity of the concrete, quality and slump should be consistent with Chapter Requirements.

3, mixer when parked in the open space, loading should be preceded by the mixing tube counter Turn, put the barrel of water (or rain) and debris discharged, in order to ensure delivery of mixedConcrete quality.

4, in the hopper, discharge chute next to the work, to wear protective equipment.Do not close the hopper and mixing mouth, and do not peep inward, but not a hand to Touch the concrete mixing machine tube.

5, on the highway, the longer placed at the discharge chute must flip slide Hook for hanging slot firmly, then go with the body vertical position, with the locking device The discharge chute and extended chute lock the rack to prevent because they do not fix And shake, causing personal injury and affect other vehicles run.

6, the car crossing the bridge, cave, libraries and other facilities, we must pay attention to the height of the pass n Dimensions and weight to avoid damage to the road surface to withstand mixer.

7, the working device continuous operation time should not exceed 8h.

8, delivery time, if found water evaporation, low slump can not meet with User requirements, may be appropriate to add water to the tube, and then 12-14r/min of 30 rpm rotation speed after discharge.

9, mixer in no-load operation and delivery of concrete during the mixing tube is not Was stopped to avoid raceway, wheel generate partial collision damage or concrete segregation Phenomenon.

10, the tank water should always filled, for emergencies.

11, refill the water tank, you must open the bleeder valve to release the air inside,Inflatable water supply and must promptly closed air reservoir.
Note: when the pressure in the water tank only, concrete batching plant the pressure tank on the highway On the road.Danger: (1) no relief in the tank can not be opened before the inlet valve;
(2) is not available until the tank car with no relief.

12, winter park, the water tank and the water supply system, not a surplus of water.

13, the discharge chute, chute need to be used together lengthened by specificRequired to determine the working position.

14, loaded with concrete forward, if you want to reverse, we must make the joystick Forward complete stop, then reverse the joystick. Forward prohibited hand during manipulationHandle it reversed.

15, according to road uphill different concrete mix barrel shape see photosA. Drivers should be based on a reasonable charge to walk the road surface slope conditions to avoid Road spreading material, pollute the environment. This book chapter II.2 nominal volume is agitated 120 slump when approved, concrete slump exceeding the value uphill, loadedLoad volume should be reduced appropriately.

16, the mixing tube high center of gravity and micro-biased Right (car look), this biasWhen the mixing tube is rotated at full load will increase, so the car must be very careful when cornering. Especially the car to turn left, you should be more careful not to make the rotational speed of the mixing tube Over 3r/min. Mixer turning diameter and the maximum stable speed relationship Annex Figure II. It should also reduce the speed of the road is not flat.

17, is strictly prohibited mixer full speed sharp turns.

18, non-operators to prohibit operation.

19, after work, you must vehicle and into the hopper, the mixing tube and outside theChute and so clean. The door is locked, turn the locking handle, lock securelyThrottle lever and servo handles.

cement paste mixer structure and working principle

Structure:
There are concrete batching plant motors, gearboxes, spindles, eccentric seat, stirring blade, stir Mixing pot, base, column, bearing, housing, program and other components.

How it works:
Two-speed motor (1) through the coupling (2) the power to the transmission case (10) within theThe worm (3) and then the worm wheel (6), and a pair of gears (7) and (9) to the spindle(8) and deceleration. Driven eccentric shaft seat (12) synchronous rotation, so that fixedEccentric seat (12) on the stirring blades (16) revolves. While stirring leaf throughMixing blade shaft (14) the upper end of the planetary gear (13) around a fixed internal gear(11) complete the rotation movement.Concrete mixing plant motor control through programmable automatic completion timeInto a slow - stop - fast forward work program requirements. Stirring the pot (17) and slide Plate (18) rotates with eccentric locking groove.

js series concrete mixer Profile

js series concrete batching plant series twin-shaft compulsory mixer, the machine has

A standalone operation and composition with PLD series batching machine simple concrete

The dual advantages of mixing station, mixing station can also provide support for the host, fitness

For all kinds of large, medium and small precast plant and highways, bridges, water,

Terminals and other industrial and civil Concrete block machine, can mix dry hard concrete, plastic

Of concrete, fluidity concrete, lightweight aggregate concrete and various mortar,

Type a high efficiency model, is widely used.

YHZS type mobile batching plant

Mobile concrete mixing plant concrete mixing station is material Asphalt Mixing Plant materials,

Weighing, conveying, mixing, discharging and centralized automatic control system as a whole and

A trailer unit concrete production equipment; stir it with a fixed automatic

Mix all the action process station, operation, maintenance and repair are identical;

Along with mobile and flexible, quick and easy disassembly, storage management simple independence

Some characteristics; is a public railways, bridges, ports, hydropower and other projects moving Shi

Workers of the best GRF models. concrete mixing machine Concrete Batching letters

Meaning: YHZS in: Y-Mobile, H-concrete, Z-mixing station, S-mining

With twin-shaft host; therefore whose official name is "mobile concrete mixing

Station. "I. Main features: current mobile concrete mixing

Main station and trailer towed into two kinds, tractor chassis contains a complete

The whole of the front and rear axle; trailer chassis, only the rear axle, placed in front of

Tractor saddle bridge. 1, disassembly fast, easy to move when transitions: In addition to

Screw conveyor, cement silo, the entire front end down to haul mixing station

Move; Others, such as walking platform, concrete batching plant panels fold down, without removing all control cables

Move. The attachment can be removed with the station away. Xin Jian special mobile mixing station is equipped with

Tires, kingpins, traffic signal devices, brakes, trailer drag

Allows speeds of up to 50 km / hour. Installation: Hard to be flat

Of ground level; removable with a 30 ton crane. Storage: If

Device is temporarily not in use, keeping the transition state transportation transportation, with two

, Other properties and method of operation, principles with a fixed standard mixing station (reference

See HZS type concrete mixing station) 3, mobile batching plant transport all components

Unit dimensions are less than the empty container size requirements, the entire station transportation needs

Three 40-foot containers.

HZS90 concrete mixing station configuration profile

A. Uses and Features Jiangsu Heavy Machinery Co., Ek Chor

Our production of concrete mixing plant is the production of large steel cement silo fresh concrete design

Equipment, can produce products that meet the requirements of national standard plastic, semi-rigid, dry

Hard concrete, widely used in urban commercial concrete, roads, bridges, large

Dams, airports, docks and other medium-sized infrastructure construction site.

The mixing station is mixing station in the absorption of foreign advanced technology and control technology agitation

Technique based on the combination of domestic concrete mixing equipment used in the actual situation

And the development of a high-productivity, high intelligence, high reliability, high

Environmental protection, highly modular features such as mixing equipment. Equipment package from the bone

Silos, aggregate belt concrete block making machine, powder warehouse, screw conveyor, mixer

, Measurement systems, water supply systems, gas systems, control systems, main frame

Frame and other components, are independent modular structure, has the following characteristics: 1,

Stirring excellent mixing console is the industry's first high-Mary mix beads Healthland

Mixing machine, and its decades of experience in developing it has a very high reliability;

High-pressure cleaning device to achieve automatic cleaning every dish, double door discharge rapidly,

Smooth, no residual material mixing arm streamline design, small resistance, long life, with

Mixing ability, good mixing quality, high productivity, high reliability

, To meet the national standard plastic, semi-rigid, rigid, and other dry

Concrete can accomplish good stirring.
HZS90 concrete mixing station configuration profile
?????A. Uses and Features Jiangsu Heavy Machinery Co., Ek Chor

Our production of concrete mixing plant is the production of large steel cement silo fresh concrete design

Equipment, can produce products that meet the requirements of national standard plastic, semi-rigid, dry

Hard concrete, widely used in urban commercial concrete, roads, bridges, large

Dams, airports, docks and other medium-sized infrastructure construction site.

The mixing station is mixing cement mixing machine the absorption of foreign advanced technology and control technology agitation

Technique based on the combination of domestic concrete mixing equipment used in the actual situation

And the development of a high-productivity, high intelligence, high reliability, high

Environmental protection, highly modular features such as mixing equipment. Equipment package from the bone

Silos, aggregate belt conveyor, powder warehouse, screw conveyor, mixer

, Measurement systems, water supply steel cement silo, gas systems, control systems, main frame

Frame and other components, are independent modular structure, has the following characteristics: 1,

Stirring excellent mixing console is the industry's first high-Mary mix beads Healthland

Mixing machine, and its decades of experience in developing it has a very high reliability;

High-pressure cleaning device to achieve automatic cleaning every dish, double door discharge rapidly,

Smooth, no residual material mixing arm streamline design, small resistance, long life, with

Mixing ability, good mixing quality, high productivity, high reliability

, To meet the national standard plastic, semi-rigid, rigid, and other dry

Concrete can accomplish good stirring.

HZS120 concrete mixing plant performance profile


??HZS120 concrete mixing station is operated by the ingredients, mixing, electrical control, etc.

Part automatic concrete mixing equipment. It is suitable for medium-

Wheel Loader than the size of the building site, precast concrete factory and commodity production plant.

Its main features are: the use of modular structure, the whole installation, relocation of ten

Points convenient, low equipment cost. Host using JS2000A type twin-shaft

Forced concrete mixer, mixing good quality and high efficiency. Aggregate

Using batching Asphalt Mixing Plant ingredients, measurement accuracy, high production efficiency. Cement,

Water, liquid admixture of the ingredients were measured using electronic scales, batching accuracy

. Water supply system uses siphon pump pressure principle, the water flow rate plus

Fast, spray evenly, the structural principle has obtained national patent. Aggregate

On the material used conveyor, long life, high efficiency. Electric

Control systems are all using imported components, reliable performance, operation side

Then

concrete mixing plant characteristics

Concrete mixing station is operated by mixing console, material weighing system, material handling

Systems, material storage systems, Concrete mixing plant and other components of the system attached to the five

Is a facility consisting of building materials manufacturing equipment, its working principle is the main

Cement as cementing material, the gravel, lime, coal and other raw materials for blending

Stir together, and finally made into concrete, as students put into the building wall materials

Production. Concrete mixing station since been put into use in China's building materials industry

Has played an important role, of course, this is also the concrete mixing station itself

Possess superior characteristics of the decision.
Concrete mixing station consists of sand and gravel feed, powder feed, water and applied

Agent to the material, cement mixing machine and storage of four parts mixing equipment Tongshen overall

Steel casting, high-quality H-beam is not only beautiful appearance, but also strengthened

Concrete mixing station's overall structural strength, equipment, easy to install, can be applied

In a variety of complex terrain structure.
Concrete mixing station with good mixing performance, the device uses double spiral

Horizontal shaft forced mixing console, mixer can be strong not only for dry hard,

Plastic and various proportions of the concrete mix can achieve good results.

Stir and high efficiency.
Concrete mixing station only has excellent mixing console, it also has a variety of fine

Liang accessories, such as screw conveyor, metering sensors, pneumatic components, etc., which

These components ensure the concrete mixing standing high reliability during operation

, The precise measurement of skills, and long life. Meanwhile, the concrete

The mixing station maintenance parts are equipped to go Taiwan or seizure ladder, and has sufficient

Maneuvering space, mixing console can be equipped with high-pressure automatic cleaning system, with

Function starvation and over-temperature alarm function, easy maintenance of equipment.
Concrete mixing station has a good environmental performance, the machine during operation

, Powder manipulating the system are carried out in the whole block, pink tank with efficient dust collection

Device / fog blowing methods greatly reduce dust pollution of the environment, while mixed

Concrete mixing station for unloading equipment and pneumatic systems are used exhaust muffler

Effectively reducing the noise pollution.

2013年7月19日星期五

Compulsory mixer concrete mixer and what is the difference?

Concrete mixer is a big category, compulsory mixer concrete mixer is the next was a category. In fact, the commonly used concrete mixing console is divided into two categories: First, self-loading mixer, stir the material to be posted on the mixing tank wall by the blades on to the air, and then fall by gravity to the bottom of the mixing bucket, and then mention air, so that circulation mixing, such as our common concrete mixing truck mixing drum is this way. stirring in this way generally requires less stirring main motor power (contrast forced mixing), but requires a longer mixing time . the material damage is small.