Detailed classification of semi-trailers
Semi-trailer detailed classification
Self-unloading semi-trailer
The self-unloading semi-trailer is suitable for the transportation of bulk, loose goods such as coal, ore and building materials. Self-unloading semi-trailers can be divided into two categories according to their use: one type of heavy-duty and super-heavy-duty self-unloading trailers for off-highway transportation mainly undertake transportation tasks such as large mines and projects, and are usually used in conjunction with excavators. The other type of light and medium-sized ordinary dump trailers for road transport mainly undertake loose cargo transportation such as sand, soil and coal, and are usually used in conjunction with loaders. 1. The car adopts the rollover and the back-turning self-unloading mode, which can effectively improve the transportation efficiency of the bulk loader in the bulk loader. 2. The frame and the longitudinal beams of the carriage are welded by high-quality manganese plates. The cargo boxes are available in both rectangular and rectangular shapes. It has high strength, strong lifting force, good rigidity and toughness, strong carrying capacity and no permanent deformation. 3, the technology is excellent: the main components are processed by advanced equipment, the longitudinal beam is fully automatic submerged arc welding, and the assembly machine is used for precise assembly of the axle and leaf spring.
Low flatbed semi-trailer
The low-profile semi-trailer has no hurdles on the vehicle, and is widely used for medium and long-distance freight transportation. The series of semi-trailer frames are of the beam-type structure, and the longitudinal beams are of the straight live gooseneck type. The web height is from 400mm to 550mm, the longitudinal beam is welded by automatic submerged arc welding, the frame is shot peened, the beam is inserted into the stringer and welded. It consists of a series of dry plate springs and suspension bearings. It has a reasonable structure and strong rigidity and strength to support load cushioning. Low-profile semi-trailers are commonly used to transport heavy-duty vehicles (such as tractors, buses, special vehicles, etc.), rail vehicles, mining machinery, forestry machines, agricultural machinery (such as excavators, bulldozers, loaders, pavers, cranes, etc.) As with other heavy-duty cargoes, the lower the center of gravity, the better the stability and safety, and the greater the ability to transport ultra-high cargo and obstacles through the head. The low-profile semi-trailer structure and the low-profile semi-trailer usually use a concave beam (or well type) frame, and the front section of the frame is a gooseneck (the front of the gooseneck is connected to the traction saddle on the tractor, the gooseneck The rear end is connected to the semi-trailer frame), the middle section is the cargo platform (the lowest part of the frame), and the rear end is the wheel frame (including the wheel). When loading mechanical equipment on a low-profile semi-trailer, it is usually loaded from the rear end of the semi-trailer, ie by moving the mechanical equipment from the rear wheel frame or removing the wheel, and then fixing the mechanical equipment to the semi-trailer on. The low-profile semi-trailer walking structure uses high-strength international steel material, and the whole vehicle has light weight and guarantees its resistance to twisting, shock and bounce, and meets different road carrying capacity.
Warehouse-type semi-trailer
The semi-trailer is designed with a fence structure for the warehouse-mounted semi-trailer. Mainly used for the transportation of agricultural and sideline products and other light foam goods. 1. The design process of the model and fence structure combines with the user's cargo category, reasonable design, fully compensates the weight of the car when the load is satisfied, the structure is simple and applicable, the disassembly is convenient, the investment cost is reduced for the user, and more profit value is created. 2. Frame: The space frame structure is formed by welding the longitudinal beam and the integral penetrating beam. It can balance the strength, rigidity and toughness of the frame, and has strong bearing capacity without permanent deformation. 3. The series of warehouse-mounted semi-trailers are all beam-type structures, and the longitudinal beams are straight or gooseneck. The height of the web is from 400 to 500, the longitudinal beam is welded by automatic submerged arc welding, the frame is shot blasting, the beam is inserted into the longitudinal beam and welded. 4. Suspension system: It adopts a new suspension system with high strength and strong impact resistance; the load balance of each axle is balanced, and the system tie rod angle is rationally designed to reduce the frictional slip distance between the tire and the ground during the frequent bumping process. It can effectively reduce the tire wear, and at the same time, the adjustable lever can adjust the wheelbase, effectively avoiding the phenomenon of the tire's partial wear and the wheel.
Container semi-trailer
The semi-trailer of the container semi-trailer is a semi-trailer with a container structure. It is mainly used in logistics systems for ships, ports, routes, highways, transfer stations, bridges, tunnels and multimodal transport. 1. Specially used for the transportation of various containers. It can be used repeatedly for a long time and has sufficient strength. 2, the use of containers to transfer goods, can be directly loaded in the consignor's warehouse, shipped to the consignee's warehouse to unload, when the car or ship is changed midway, there is no need to take the goods out of the box. 3, can be quickly loaded and unloaded, and can be easily and easily changed from one transport to another. 4. It is convenient for the filling and emptying of goods to meet the individual needs of customers. According to the customer's need for tooling, the quality is stable and the performance is reliable. Container semi-trailers are special transport trailers that carry containers. In the initial stage of container transportation development, due to the small payload of the container, the quantity is not large, and it is often carried by ordinary trucks. Since the 1960s, with the rapid development of container transportation, countries have successively developed cars that specialize in transporting containers. The size of the loading position of the container trailer is determined according to the standard container size, and a twist lock device for fixing the container is provided at a position corresponding to the four corners of the bottom of the container. Special transport trailer for carrying containers. A twist lock device for fixing the container is provided at the four corners of the loading portion. It is usually semi-mounted, fully-mounted and double-mounted, with a semi-trailer type. The semi-trailer type has a flat type and a skeleton type. The former has a flat cargo platform, and can also be used for shipping ordinary long goods; the latter has no cargo platform, and the container is mounted on the chassis skeleton, and is fixed by a twist lock device into a semi-trailer. Strength member.
Tank semi-trailer
The semi-trailer of the tank type semi-trailer cargo structure is a tank structure. Mainly used for transporting liquids, bulk materials and bulk cement. 1. Tank truck series are divided into tank trucks, concrete mixer trucks, powder materials and bulk cement trucks, water supply vehicles, etc. 2. The tank body is manufactured through three-dimensional design and advanced processing technology. The chassis adopts a special chassis of various manufacturers, with advanced technology and reliable performance. A truck with a canned container. Advantages: high efficiency in loading and unloading. Guarantee the quality of the goods. Conducive to transportation safety. Reduce labor intensity and improve loading and unloading conditions. Save packaging materials and save labor. Reduce transportation costs. Liquid tank car: Shipment of fuel, lubricating oil, acid, alkali, water, food and beverage, etc. Powder tank car: transport cement, flour, stone powder, etc. Gas tank cars: transporting nitrogen, argon, petroleum gas, etc., particle tankers: shipping grain, beans, granular plastics and other granular items. Other special tankers: concrete mixer trucks, sprinklers, sweepers, etc. According to the use pressure in the container, the tanker is divided into: low pressure tanker (the internal pressure of the tank is generally below 0.09Mpa. Mainly filled with water, light fuel oil, etc.) medium pressure tanker (the internal pressure of the tank is generally 0.147-0.294Mpa) High pressure tankers (mainly caustic soda, asphalt, etc.) (the internal pressure of the tank is generally 1.177-3.532Mpa).
Van semi-trailer
The van semi-trailer series is used for the transportation of building materials such as household appliances, light textile goods, coal, sand and stone, and pallet goods. The car body adopts high-strength cold-sawed corrugated steel plate, no skeleton structure, center-wide, diverse selection, large loading space, reasonable distribution in the box body, X-type bracing, multi-tension, heavy load, light weight, roof It has closed type, push-pull open type, open type, open-end tarpaulin pole type, etc. It is easy to operate and meets the diversified and personalized requirements of users. The van transport semi-trailer adopts a closed side fence design, which effectively reduces the lateral risk of the vehicle at high speed and reduces energy consumption. The rear protection design has reasonable cart attachments for convenient operation. It is modified or separately manufactured on the chassis of the van. It can be divided into passenger compartment and compartment type according to the compartment. Passenger compartments and cabs are generally monolithic structures, such as ambulances, accommodation vehicles, environmental inspection vehicles, dining cars, and television broadcast vehicles. The compartment-type compartment and the cab are generally of a split structure, such as a van-type carriage, a refrigerated-insulated vehicle, and the like. The specific structure of the car varies according to its function. In addition to the function of the general compartment, the compartment of the refrigerated and insulated vehicle also has the function of heat insulation and heat preservation; the top cover of the top-top compartment can be vertically lifted to change the volume of the compartment to meet the loading and unloading requirements of different cargo; the wing-open compartment It facilitates loading and unloading of goods and improves loading and unloading efficiency. The series of vans are divided into box-type fortune semi-trailers and second-hand refitted vans. The whole body of the vehicle is made of high-quality steel, advanced technology and strict production process. The structure of the whole vehicle is reasonable, the performance is reliable, the operation is simple, and the appearance is beautiful. The accessories are made by well-known manufacturers at home and abroad, and are purchased, inspected and used in strict accordance with the requirements of the quality system documents to ensure the good performance of the whole vehicle.
Self-unloading semi-trailer
Dump truck compartments are equipped with automatic dump trucks. Also known as dump trucks and engineering vehicles, it consists of a car chassis, a hydraulic lifting mechanism, a power take-off device and a cargo compartment. In civil engineering, it is often combined with excavators, loaders, belt conveyors, etc. to form loading, unloading and unloading production lines for loading, unloading and transportation of earthwork, sand and loose materials. Since the loading compartment can automatically dump a certain angle of unloading, the discharge time and labor are greatly saved, the transportation cycle is shortened, the production efficiency is improved, the transportation cost is reduced, and the loading volume is indicated. It is a common transportation machine. Introduction: The structure of the engine, chassis and cab is the same as that of a typical truck. The car can be tilted backwards or sideways, and the piston rod movement is controlled by the operating system. It is more common to tilt backwards later, pushing the piston rod to tilt the car. A few two-way dumping. The high-pressure oil enters the lift hydraulic cylinder through the distribution valve and the oil pipe, and the cab safety protection plate at the front end of the car. The engine drives the hydraulic pump through the transmission and the power take-off device. The hydraulic tilting mechanism of the cabin is composed of a fuel tank, a hydraulic pump, a distribution valve, a lifting hydraulic cylinder, a control valve and a oil pipe. The hydraulic tilting mechanism of the compartment is composed of a fuel tank, a hydraulic pump, a distribution valve, a lifting hydraulic cylinder, a control valve and a fuel pipe. The engine drives the hydraulic pump through the transmission and the power take-off device. The high-pressure oil enters the lift hydraulic cylinder through the distribution valve and the oil pipe, and pushes the piston rod to tilt the car. It is more common to tilt over in the future, and the steering of the piston rod can be controlled by the operating system to stop the car at any desired tilt position. The cabin is reset using its own gravity and hydraulic control. The main technical parameters of the dump truck are the loading weight and the loading volume. New cars or overhauled factory cars must be commissioned to make the car lift process smooth and seamless. When using, all parts should be properly selected according to the regulations, which greatly saves the discharge time and labor, pay attention to the lubrication cycle, and the lifting mechanism strictly changes the oil in time. Shipped at rated load, overload is strictly prohibited.
Oil semi-trailer
The oil transportation semi-trailer is mainly used for large-scale oil transportation, and the tonnage is generally around 40~60 cubic meters. Oil semi-trailers usually have two-bridge semi-trailers and three-bridge semi-trailers. The oil tank semi-trailer square tank material is made of Q235A steel plate. The tank body has built-in multi-channel reinforced anti-wave baffle plate. The lower end of the baffle has through holes to reduce the impact of the oil in the tank and improve the strength of the tank. . The combined tank mouth is located at the top of the tank body. There is a self-locking small cover on the large cover, and a breathing valve is installed on the upper side of the large cover to ensure uniform atmospheric pressure inside and outside the tank; with an electrostatic grounding wire. Install the pump oil system, take the force from the gearbox side through the power take-off, self-priming and self-discharging; with two pumping oil pipes, equipped with quick-connect fittings, suction stroke of 6 meters. Two fire extinguishers and special tools. The oil transport semi-trailer is divided into two parts, a tank body and a skeleton or bracket supporting the tank body. Faults and maintenance methods: 1. Brake is not working, and the brake is slow. Cause: The brake shoe friction plate and the brake drum have too much clearance. The gap between the brake shoes and the friction plate is excessively worn, and the brake shoe is replaced. Replace the air chamber air brake system air leakage to reduce the pressure, check the air leakage part, repair or replace the parts emergency relay valve is not working properly, replace 2, can not release the brake, the brake is released slowly. Cause: The system pressure is too low, will The pressure of the air brake system is increased to the specified value. The brake return spring is damaged, the replacement spring pipe is blocked, the emergency relay valve or the quick release valve is inspected and cleared. The check and replacement of the brake chamber push rod stroke is incorrect, and the adjustment is made again. Tire swing reason: the wheel nut is loose, tighten the axle bearing to be sintered and damaged, replace the bearing axle bending, correct and replace the axle bearing clearance too large, correctly tighten the bearing lock nut, replace the bearing grease on time, replace the axle bearing; the tire is excessively eccentric The vertical axis of the axle axis and the centerline of the frame exceeds the standard seriously. Adjust the distance between the two ends of the axle and the traction pin as much as possible. 4. Shake the handle
Light semi-trailer
Ultra-light semi-trailer, as its name suggests, is a much lighter car than a regular car. In the end, it is ultra-lightweight. The definition in the industry is that it is equivalent to an ordinary car, and the size is comparable, and the weight is lighter than 15%. If you want to use a semi-trailer, you can achieve a few points: 1. Reduce the thickness of the board. This can be done with a steel with a high point. High standard steel, high strength, good toughness, fatigue resistance 2. Reduce the weight of the rear axle. The axle and suspension are now close to two tons, and there are light bridges, disc brakes, four leaf springs, new lifting lugs, vacuum tires, single tires, etc. are all effective ways. Hanging with the airbag, this application is less 4. Reduce the weight of the accessory. Reduce the weight of the bumper, side protection net, mesh spare tire carrier, tool box, tarpaulin frame, etc. 5. There is also a suspension rear axle, which is the last bridge that everyone knows can be upgraded when it is not used. The method is to use high-strength (domestic high-grade) steel to reduce its own weight. High-strength steel semi-trailers are lighter in weight than ordinary carbon steel light semi-trailers. The use of high-strength steel imported from Sweden to optimize the design of the semi-trailer, without reducing the load capacity of the semi-trailer, the self-weight of the semi-trailer is reduced by more than 1.3 tons, which can effectively improve the use efficiency of the vehicle. Product name: ordinary carbon steel light semi-trailer high-strength steel light semi-trailer 13-meter slab semi-trailer 7.0 tons, 5.98 tons. 13-meter warehousing semi-trailer 7.7 tons, 6.68 tons. 13 meters van semi-trailer 8.1 tons 7.08 tons.
Vehicle transport semi-trailer
Semi-trailer designed with a fence structure for vehicle-transported semi-trailer cargo parts. It mainly carries passenger cars, and can also carry passenger cars such as vans, commercial vehicles, and jeep. 1. The body is a rod and cabinet structure. The structure is light and light. Most of them are upper and lower loading platforms. The platform adopts hydraulic cylinder opening, wire rope pulley structure, stable lifting, high positioning and so on. 2, the structure is light: the whole vehicle adopts the truss structure, the frame is fully loaded, and the longitudinal beam structure of the semi-trailer has no light weight, which is about 30% lighter than the similar vehicle. 3, safe and convenient operation: all loading and unloading platform lifting control operation is reliable, can be clearly observed, accurate operation. 4. Suspension system: It adopts the unique leaf spring under-mount suspension system, variable-section leaf spring, and has good ride comfort.
Powder material transportation semi-trailer
Powder material transportation semi-trailer is a special vehicle for transportation of large quantities of dust materials (bulk cement). It is generally applicable to areas where weighting is strictly carried out in accordance with national regulations. The volume is generally between 35 and 45 square meters. It is suitable for the transportation and pneumatic discharge of fly ash, cement, lime powder, ore powder and other granular materials with a diameter of not more than 0.1mm. When the vertical height of unloading reaches 15m, the horizontal conveying distance can reach 5m. The semi-suspended powder material transport vehicle uses the self-supplied engine power to drive the vehicle air compressor through the power take-off device, and sends the compressed air through the pipeline to the air chamber in the lower part of the sealed tank body to suspend the cement in the fluidized bed into a fluid state. When the pressure in the tank reaches the rated value, the discharge butterfly valve is opened, and the fluidized cement is transported through the pipeline for transportation. Made with domestic advanced technology, the design is novel, sturdy and durable. The air bag type has a large carrying capacity, and the discharging speed is fast and the residual amount is small. The integrated synthetic tank has the characteristics of high overall strength, good rigidity, good pressure bearing and good performance. The fluidized bed in the tank has a scientific design and reasonable layout. It can effectively shorten the discharge time to 1.4T/min, improve the volume utilization of the tank, reduce the residual ash rate, and the residual ash rate is 0.2%. The powder material transporter tank adopts double cone inner tilting horizontal structure, double pipe air intake and double cylinder feeding, and its discharging speed and residual rate are in line with industry standard requirements.
Chemical liquid transport semi-trailer
Chemical liquid transport semi-trailers have different requirements for tank material depending on the characteristics of the medium being shipped. The common chemical liquid tank body materials are: stainless steel (202, 304, 316L) carbon steel, plastic steel (lined plastic tank), glass steel, aluminum can, plastic tank (polyethylene, polypropylene), etc. Polyethylene is the main raw material formulating process, and it can form a whole plastic and plastic steel product in one time. It has the characteristics of no seam, no leakage, corrosion resistance, anti-aging, impact resistance, non-toxicity, long life and low price. It is suitable for most of them. Acid, alkali, salt, alcohol, aldehyde storage, transportation, reaction, stirring, wastewater, gas treatment. The steel belt is often bundled and fixed on the chassis of the automobile as a transportation tank. Widely used in chemical, metallurgical, environmental protection, brewing, food, pharmaceutical, storage and transportation companies. The whole plastic tank series uses polypropylene as the main raw material process, and the 20MM thick polypropylene sheet is welded by double-sided special process. The tank body is reinforced with multi-channel anti-wave board, which is better than the polyethylene tank (<60°C). Propylene <85 ° C). Suitable for most acids, alkalis, salts, alcohols, aldehydes storage, transportation, reaction, mixing, wastewater, gas treatment. The steel belt is often bundled and fixed on the chassis of the automobile as a transportation tank. Widely used in chemical, metallurgical, environmental protection, brewing, food, pharmaceutical, storage and transportation companies. Plastic-steel composite tank series (lined plastic tank): steel-plastic composite anti-corrosion series products, which are formed by integrally forming modified PE into the inner wall of steel tank through steel mesh transition structure. It has the dual characteristics of PE anti-corrosion performance and metal strength. The operating temperature:- 20 ° C ~ 70 ° C products are pressure tanks, large storage tanks, reactors, ion exchange columns, chemical towers, pipeline valves, etc., widely used in the chemical industry storage and reaction and transport tanks. Carbon steel tank series: It is made of fine anti-corrosive paint inside and outside, suitable for all kinds of non-corrosive chemical liquid transportation. Use temperature: -20 ° C ~ 60 ° C, the scope of application is small (concentration of > 97% concentrated sulfuric acid can be made of 6-8mm thick carbon steel plate cans) FRP tanks have a wide range of applications, due to high brittleness and low toughness, When used as a transport tank, the tank should not be enlarged. Aluminum cans are the best choice for transporting liquid nitric acid. Stainless steel cans have a wide range of applications, but at a higher cost. The company has strong technical strength and can design and manufacture products that satisfy customers according to user requirements.
Heavy duty low plate semi-trailer
Heavy duty low-profile semi-trailers are used for trailers that carry very large and overweight shipments. The basic form of heavy-duty trailers is a single flatbed trailer. It generally has the following structure. The frame and the axle axle are mostly two-axis collinear, that is, there are two left and right axles on one axis, which is also called a two-axis train. Common single flatbed trailers have 2 to 7 axes. There are 4 tires on one axle and 8 tires on one axis. Therefore, the width of the whole car can reach more than 3 meters. In order to reduce the center of gravity of the vehicle, it is common to use steel wire radial rim tires (see car tires) with small diameter and large load capacity. Each tire can withstand a load of about 4 tons under low speed operation conditions. The frame is made of high-strength alloy steel box-section welded structure. Usually a single-axis flatbed trailer with a 5-axis and two-axis train can carry more than 100 tons.
Flap type semi-trailer
The semi-trailer with the slab-type semi-trailer cargo part is a slab structure. It is widely used in medium and long-distance transportation of medium and heavy-duty and bulk cargo. It has strong applicability and has become the first choice for medium and long-distance freight vehicles. 1. The whole body of the vehicle is made of high-quality steel, advanced technology and strict production. The structure of the whole vehicle is reasonable, the performance is reliable, the operation is simple, and the appearance is beautiful. 2. The series of semi-trailer frames are all beam-type structures, and the longitudinal beams are straight or gooseneck. The height of the web is welded from 400mm to 550mm manganese plate, the longitudinal beam is welded by automatic welding, the frame is shot peened, the beam is inserted into the stringer and welded. 3. The suspension adopts non-independent steel plate stamping type rigid suspension, which is made up of series leaf springs and suspension bearings; the structure is reasonable, with strong rigidity and strength, used to support the load to slow down the impact.
Gooseneck semi-trailer
Gooseneck semi-trailer goods are also widely used, suitable for transportation of various kinds of machinery, large objects, highway construction equipment, large-scale tanks, power station equipment and various steel products. The series semi-trailer has flat-plate, concave beam and tire exposed structure. The longitudinal beam adopts straight or gooseneck type. The frame of the semi-trailer is stepped, and the longitudinal beam has a cross-section of I-shaped, which has the characteristics of high rigidity and high strength. The main plane of the cargo platform of the frame is low, which ensures the smoothness of transportation, and is suitable for carrying large-scale engineering machinery and steel equipment. The three-axis balanced live rigid suspension is equipped with a mass balance block between the front and rear leaf springs, which can change the deflection of the front and rear leaf springs in equal amounts, and balance the force of the rear axle. It is widely used, efficient and fast. The whole vehicle adopts advanced computer-aided design software to optimize the design and flexibility. The frame bearing surface is designed according to user requirements to meet the transportation of various special goods.
Skeleton container semi-trailer
The skeleton container transporter is a type of container transport semi-trailer frame and a flat type. The skeleton type car is welded by the longitudinal beam, the beam and the front and rear beams. The longitudinal beam is made of high quality steel plate 16Mn submerged arc welded into an I-shape (main size is 450, 500). The beam is punched into a trough type with high quality steel plate, front and rear ends. The beam is a welded rectangular section. An integral long beam is arranged at the intermediate container locking device to improve the carrying capacity of the container locking device. The difference between the flat type and the skeleton type is that the flat type and the patterned floor are added. The frame of the wooden series container transport semi-trailer is all shot peened, and the whole frame is assembled and welded on a special positioning gantry. The structure is reasonable, the strength is high, and the appearance is beautiful. A container tightening device is installed on the frame to load two standard containers of 40 feet and 20 feet. The four container tightening devices at the front and rear ends are of a fixed structure, and the intermediate container compacting device is of a storable structure. When loading the container, the intermediate container locking device can be lowered below the plane of the cargo bed as needed. Mechanical load-bearing devices are selected, mainly including Baohua 12T, 20T; Fuhua 13T; JOST; Its function is to support the ground and to withstand the front load of the semi-trailer when the traction device is disengaged from the trailer. The supporting device has two types: single-acting type and interlocking type, and is mainly composed of a supporting disc, a screw transmission mechanism, a reduction box and a joystick. The suspension device has three-axis suspension and two-axis suspension three-axis suspension. The semi-trailer is equipped with two spare tire frames, which are respectively installed on the left and right sides of the trailer frame, and are equipped with a spare tire lifter.
17 m 5 low flat semi-trailer
17 m 5 low flatbed semi-trailers are usually used to transport heavy-duty vehicles (such as tractors, buses, special vehicles, etc.), rail vehicles, mining machines, forestry machines, agricultural machines (such as excavators, bulldozers, loaders, pavers). Cranes, cranes, etc., and other heavy-duty cargoes, the lower the center of gravity, the better the stability and safety, the stronger the ability to transport ultra-high cargo and obstacles through the head. Low flatbed semi-trailer structure and loading. The low-profile semi-trailer usually adopts a concave beam (or well type) frame, and the front section of the frame is a gooseneck. The traction pin on the front of the gooseneck is connected to the traction saddle on the tractor, and the gooseneck rear end and the semi-trailer frame. Connected), the middle section is the cargo platform (the lowest part of the frame), and the rear end is the wheel carrier (including the wheel). When loading mechanical equipment on a low-profile semi-trailer, it is usually loaded from the rear end of the semi-trailer, ie by moving the mechanical equipment from the rear wheel frame or removing the wheel, and then fixing the mechanical equipment to the semi-trailer on.
Bulk cement tank transport semi-trailer
Bulk cement tanker, bulk cement truck, alias cement tanker, powder material truck. There are closed cargo compartments and automatic unloading devices, and vehicles for transporting bulk cement. Mainly used in cement plants, cement warehouses and large construction sites, it can save a lot of packaging materials and loading and unloading labor. There are three kinds of bulk cement cars. Introduction: 1 Gravity unloading car: The earliest bulk cement car. It is made up of a common dump truck with a closed cargo compartment top cover. When the cargo is unloaded, the cargo compartment is tilted and the cement is automatically discharged by gravity. This method of unloading can only remove the cement to a position lower than the compartment, and the cement is flying when the cargo is unloaded, and the blanking area is large. 2 Mechanical unloading car: used in the 1950s. It uses the screw conveyor installed on the car to unload the ash, adjusts the height of the screw conveyor, can discharge the cement to different heights, and can reduce the flying of the cement, but the ash remover is easy to wear due to the direct push of cement. 3 pneumatic unloading car: appeared in the 60s, it is relatively easy to use. At present, the maximum load capacity of this type of car is nearly 100 tons. Its cargo compartment is a tank container, standing or lying on the frame of the car. The horizontal tank has a lower center of gravity, and the car is stable and has many applications. The tank body is welded with steel plates or aluminum plates, and can also be made of glass steel. The upper part of the tank has one or more ash openings along the length of the tank to facilitate filling the full tank. The ash port can double as the entrance and exit of the maintenance personnel. A cement fluidization device is arranged at the bottom of the tank. The car is equipped with an air compressor for ash removal. When the ash is discharged, the compressed air is sent into the tank from the bottom of the tank, and is divided into a fine stream by the gas permeable layer of the cement fluidization device, uniformly filled into the cement to form an air-cement mixture, and the cement is along the pressure difference between the inside and the outside of the vessel. The discharge pipe is discharged. The pneumatic unloading method has the advantages of quick unloading of ash, less flying dust, and the advantages of using a flexible long discharge pipe to discharge at any height and at a distance, and can be operated in the open air on a rainy day.
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