Special vehicles related to asphalt can be divided into four major types: asphalt transport vehicles, asphalt spreading vehicles, asphalt pavement thermal regeneration repair vehicles and asphalt gravel synchronous sealing vehicles. Below we will introduce these models to you in

and asphalt related special vehicles can be divided into four major types, namely: asphalt transport vehicle , asphalt spreading vehicle, asphalt pavement hot regeneration repair vehicle and asphalt gravel synchronous sealing vehicle. Below we will introduce these models to you in detail.

asphalt transport truck

asphalt transport truck is used to spread the permeable oil, waterproof layer and bonding layer of the bottom layer of asphalt pavement on high-grade highways. It can spread high viscosity modified asphalt , heavy traffic asphalt, emulsified asphalt , etc. It can also be used in the construction of county and township-level highway asphalt roads that implement layered paving technology.

Performance characteristics

. The vehicle-type structure has a small turning radius; the tank section is trapezoidal, with large volume, low center of gravity and compact structure;

. Asphalt tank is equipped with a heating system and is equipped with an imported diesel burner, with good combustion quality , pollution-free;

. Use the unique thermal oil system to heat and insulate the asphalt pump and valve; hydraulic system drives the asphalt pump and thermal oil pump, with reliable transmission and easy operation;

4. Multi-functional pumping system, transmission Reliable and easy to operate, it can meet various needs in asphalt transportation; it has a full liquid level display and a full level alarm system to facilitate the control of the asphalt liquid level in the tank;

5. Self-flow unloading: when the oil storage tank is lower than the asphalt transport vehicle

6. Pressure discharge: When the oil storage tank is higher than the asphalt transport vehicle, pressure pumping is used;

7. Self-pump suction: The oil in the insulation tank or oil storage pool can be discharged through its own oil discharge pipe. Asphalt is sucked into the vehicle without an external pump;

8. Internal circulation: During the asphalt heating process, internal circulation can be carried out to improve the heating quality of the asphalt;

9. External pump input: asphalt can be injected through the tank top inlet;

0. Applicable to all It works under various conditions, has large traction force, strong load-bearing capacity and comfortable driving.

Asphalt spreading truck

Asphalt spreading truck refers to a tank-type special operation vehicle equipped with an insulated container, asphalt pump, heater and spraying system for spraying asphalt; it can also be defined as a kind of spraying hot asphalt, emulsified Pavement construction machinery for liquid asphalt such as asphalt, residual oil and other liquid asphalt; can be widely used in road construction such as highways, urban roads, airports, ports, terminals and reservoirs. Large-capacity asphalt spreading trucks can also be used as asphalt delivery vehicles and are mainly used for construction and maintenance projects such as asphalt penetration surface treatment, penetration layer, sticky layer, on-site mixing of mixtures, and asphalt stabilized soil.

Structural features

(1) Asphalt tank

consists of an inner tank, insulation material, outer shell, partition, combustion chamber , asphalt pipeline in the tank, thermal oil pipeline, air storage cylinder , filling port, capacity meter, decorative board, etc. composition. The tank body is an elliptical cylinder, and the inner and outer layers are welded by steel plates. The two layers are filled with aluminum silicate insulation material , with a thickness of 50 to 100mm, and are covered with stainless steel plates. There is a sinking groove at the bottom to facilitate the asphalt in the tank to be sucked out. There are 5 mounting feet at the bottom of the tank that are welded to the sub-frame and then fixed to the frame. The outer layer of the combustion chamber is a thermal oil heating chamber, and a row of thermal oil heating pipes are installed at the bottom. The volume gauge is used to indicate the level of asphalt in the tank.

(2) The power transmission system

is composed of power take-off , pump transmission device, hydraulic system, etc. Generally, the output power of the power take-off installed on the chassis engine or the output port of the transmission drives the hydraulic pump to provide the necessary power for the asphalt spreading device. The hydraulic system consists of a hydraulic pump, a relief valve, a reversing valve , It is composed of hydraulic motor , hydraulic pipelines, etc.

(3) Asphalt pump and pipeline system

consists of asphalt pump, filter, valve, spray pipeline, cylinder nozzle assembly, etc.The flow direction of liquid asphalt in the pipeline is controlled through different combinations of valves. The main functions are as follows: self-priming asphalt filling, rear pipe spraying, portable nozzle spraying, circulation, suction back, cleaning, etc.

(4) Asphalt heating and thermal oil system

consists of a combustion heating system and a thermal oil circulation heating system.

(5) Asphalt pipeline cleaning system

has two parts: diesel cleaning and high-pressure air flushing. The diesel cleaning part consists of a diesel tank, an oil inlet copper ball valve, and pipelines. The high-pressure air flushing part consists of an air reservoir, one-way valve , air valve , etc.

(6) Electrical and control system

Electrical control system is divided into DC circuit and AC circuit 2 part. The DC circuit is composed of power take-off, reducer, cooler , hydraulic reversing valve , rear nozzle lift, rear working light control circuit and automatic control system circuit; the AC circuit is composed of generator, burner , thermal oil Motor circuit composition.

Asphalt pavement thermal regeneration repair vehicle

Asphalt pavement regeneration and repair vehicle is mainly used for asphalt pavement repair, production of asphalt mixture and on-site thermal regeneration of waste pavement materials. It is a comprehensive maintenance vehicle with five major functions: asphalt spreading, pavement crack tracking and grouting, production of new asphalt mixture, on-site regeneration of asphalt pavement, and provision of hydraulic power for other hydraulic devices.

Asphalt pavement thermal regeneration repair vehicle This vehicle is a pavement thermal regeneration maintenance vehicle, equipped with an asphalt mixture heating box, an emulsified asphalt spraying device, and an asphalt pavement heating plate. The asphalt pavement thermal regeneration repair vehicle is a comprehensive point-to-point regeneration and repair equipment for asphalt pavement diseases. It is suitable for repairing various asphalt pavement diseases such as highways, national and provincial trunk lines, airports, municipal roads, etc. Repairs mainly include road potholes, cracks, cracks, bumps and partial damage to the road surface. The construction is not subject to seasonal restrictions and fully meets the maintenance requirements of quick arrival, quick repair and quick evacuation. It has the advantages of high efficiency, low energy consumption, less pollution, low cost and simple operation.

Functional features

. Completely solve the problems of many construction workers, high labor intensity, many safety hazards, heavy environmental pollution, and poor repair results during the repair process;

. Completely solve the problem of old or cold materials in winter or when the mixing station is not open. The problem of needing heating;

. Completely solve the problem of poor repair effect caused by the drop in material temperature during transportation;

4. Completely solve the difficult and troublesome problem of material box maintenance, basically free of maintenance for life;

5. Completely solve the problem of waste materials after repair. Easy to deal with;

6. Completely solve the problem of weak seams after manual repair, and at the same time solve the problem of quick repair and quick evacuation.

Asphalt gravel synchronous sealing truck

The so-called synchronous gravel sealing is to use special equipment, namely synchronous gravel sealing truck , to combine the gravel and bonding materials (modified asphalt or modified emulsified asphalt ) It is spread simultaneously on the road surface and formed into a single layer of asphalt gravel wearing layer through natural driving and rolling. It is mainly used as a pavement surface layer and can also be used as a low-grade highway surface layer. The biggest advantage of the synchronous gravel sealing technology is that the bonding materials and stones are spread simultaneously, so that the high-temperature bonding material sprayed on the road surface can be instantly combined with the gravel without cooling down, thus ensuring that the bonding materials and stones are a strong bond between them.

Synchronized gravel seal has good anti-slip properties and anti-water seepage properties. It can effectively cure road surface diseases such as oil depletion, grain loss, slight web cracking, rutting, and subsidence. It is mainly used for preventive and corrective maintenance of roads. , and improve the anti-skid performance of high-grade road surfaces.This new maintenance technology can be used on both expressways and ordinary roads. More than 95% of roads in France and Europe use simultaneous gravel sealing for pavement maintenance.

In addition, the synchronous gravel seal can also be used as the surface layer of low-grade highways. More than 40% of roads in France directly use gravel seal as the road surface, and the use effect is good. Therefore, when highway construction funds are insufficient, the use of low-cost synchronous gravel seals as low-grade highway pavement is undoubtedly an effective measure to increase the pavement rate of the road network.

For example - XCMG synchronous gravel sealing truck

XCMG XTF1203 asphalt gravel synchronous sealing truck, on the plateau of nearly 5,000 meters above sea level in Shigatse, Tibet, moves forward slowly, sprays evenly, and performs efficient construction. Safety indicators are also important. The XTF series asphalt gravel synchronous sealing trucks produced by XCMG use a 24V DC burner, which is far lower than the 220V safety voltage index and has a higher safety factor.

realizes the function

. Heating speed is fast, and rubber asphalt can be spread.

uses two imported 24V low-pressure Beckett burners to heat the asphalt, and the heating speed is fast; the outside of the asphalt tank is filled with 100mm thick high-quality insulation rock wool, and the tank has good insulation performance; The unique thermal oil coil arrangement improves heat exchange efficiency; the built-in chimney improves heat utilization; the tank is equipped with a double-layer paddle mixer, which ensures no dead ends in mixing, which can effectively increase the asphalt heating speed and prevent the segregation of rubber asphalt. Precipitation, equipped with rubber asphalt special filter element and nozzle.

. High degree of automation and easy operation

The user uses the color touch screen controller in the cab. After inputting the construction parameters, the controller can automatically complete the spreading (sprinkling) construction; the asphalt pipeline uses pneumatic butterfly valve to control the opening and closing , without manual operation, can complete the small circulation, large circulation and spraying functions of the asphalt pipeline; the spray beam is driven by a hydraulic motor and automatically folds, which is easy to operate, improves operating comfort, and reduces the risk of working under the chassis.

. Key components are all imported brands with high reliability.

Asphalt pump, hydraulic pump, hydraulic motor, hydraulic solenoid valve, burner and other major key components are all imported brands with stable construction performance and high reliability.

4. Belt conveyor type silo has strong construction adaptability (belt screw conveyor type)

Belt conveyor type silo has the characteristics of large capacity and low center of gravity. There is no need to lift the silo during construction, which can meet the construction requirements of tunnels, curves and culverts. need. The high-temperature resistant annular conveyor belt can spread pre-wrapped stones; the silo is equipped with a deadening cone to prevent the stones from hanging in the air; the unique patented design of the screen-type silo solves the problem of the spreader jamming caused by the mixing of large-size stones .

5. Hydraulic telescopic spreader, the gravel is evenly spread (belt spiral conveyor type)

conveyor belt automatically senses the material, the spreader double-spiral cloth, the material door cylinder controls the opening height; the unique drum design prevents the stone from slipping and achieves crushing Stones are spread precisely.

6. Independent upper-mounted engine to ensure construction under extreme working conditions.

is equipped with a Diesel III engine to ensure sufficient power for working devices and meet extreme working conditions in high-altitude and cold areas. There are construction cases in the Garze Tibetan Autonomous Prefecture of Sichuan and the 219 National Highway in Shigatse, Tibet.