asphalt synchronous chip sealer are used for gravel seal processes in highway surfaces, bridge deck waterproofing, and lower seals. The spraying of the asphalt binder and the spreading of the stones are carried out synchronously, so that there is sufficient surface contact between the asphalt binder and the stone to achieve the maximum cohesion between them. (Sprinkle) spread on the road surface, and continuously form strength under the action of external load. At the same time, due to the surface tension of the fluid asphalt, the asphalt climbs up along the surface of the stone, and the climbing height is about 2/3 of the height of the stone, and forms a meniscus on the surface of the stone, so that the area of the stone covered by the asphalt reaches 70%. sufficient bond strength.
asphalt synchronous chip sealer is mainly composed of the main vehicle chassis, asphalt distribution system, stone chip distribution system, air system, water system, control system, sensor speed measurement system, power system and mixing system, etc.
Main performance parameters of asphalt gravel synchronous sealing truck:
Product Name: Rubber asphalt synchronous chip sealer
Chassis manufacturer: Shaanxi Automobile
Chassis engine model: Weichai 340 hp
Wheelbase: 1800+3975+1400
Total mass: 31000 kgs
Tank volume: 9m3
Silo volume: 15m3
Simultaneous sprinkle (sprinkle) cloth width: 4300mm
Asphalt spreading amount: 0.2-3 kg/m2
Stone spreading volume: 2-22L/㎡
Asphalt distribution accuracy: 1%
Stone spread particle size 3-30mm
Spreading medium: rubberized asphalt, modified asphalt, hot asphalt, emulsified asphalt
Equipment heating method: automatic temperature control heat transfer oil heating
Asphalt heating rate: 20℃/h
Best construction speed: 4-9km/h
Asphalt mixing speed: 100r/min
Dimensions: 11800×2520×3850 mm (L×W×H)
The main configuration components of the asphalt synchronous chip sealer: chassis, asphalt pump, heat transfer oil pump, transfer case, burner, vehicle-mounted special controller, touch screen, vehicle-mounted high-definition camera, load-sensitive pump, asphalt pump motor, drum motor, hydraulic reversing valve, agitator
Chassis; the main function is to carry working devices and provide working power. Usually purchased directly from the chassis manufacturer, the car generally uses two brand chassis of Shaanxi Automobile and Sinotruk.
Asphalt Tanks: Hot Asphalt Storage and Insulation. The heat transfer oil heating system provides compensation for the loss of heat energy in the asphalt tank, ensuring that the asphalt in the asphalt tank, asphalt pipeline and boom is always kept within the spray temperature range, and the burner fuel is light diesel.
Stone silo: The main function is to hold gravel. When the crushed stone material in the silo is lower than the set material level, the oil cylinder starts to rise, and the crushed stone in the silo is rotated and injected into the crushed stone door to realize the uninterrupted distribution of the crushed stone material.
Asphalt Circulation System: The asphalt pump is driven by a hydraulic motor, which makes the asphalt in the asphalt tank, asphalt pipeline and spray boom realize large and small circulation to ensure normal asphalt spraying.
Oil-conducting circulation system: The heat-conducting oil pump consists of a hydraulic-dynamic heat-conducting oil pump, which provides heat energy for the heat preservation and preheating of the asphalt tank, asphalt pipeline and spraying system.
Asphalt spraying system: According to the construction requirements, the amount and width of asphalt spraying are set, and the asphalt is evenly sprayed on the working surface.
Stone spreading system: According to the construction requirements, set the distribution amount and width of gravel, and lay the gravel evenly on the working surface.
Hydraulic system: The hydraulic system realizes various actions by driving the hydraulic motor and hydraulic cylinder of each functional component.
Pneumatic system: The compressed air is stored in the air storage tank, and the functional components are driven by the pneumatic control components to realize various actions
asphalt pavement maintenance truck new asphalt/bitumen synchronous gravel chip sealer truck shacman right hand drive with weichai engine 340hp 
asphalt synchronous chip sealer performance characteristics:
1. The chassis adopts the special vehicle chassis of Shaanxi Automobile Engineering, which has strong bearing capacity; the cab with high roof and high configuration is used to make driving more comfortable; the gears have high and low levels
Fast shifting, gear makes work more efficient.
2. The asphalt tank has a large capacity, which can improve the single construction efficiency.
3. It adopts the combined heating method of double burners, double U-shaped heating fire tube heating and heat transfer oil circulation heating, and is equipped with automatic temperature control system, which has fast heating and high efficiency, and the heating speed is ≥20 degrees/hour. Automatic ignition and automatic temperature control system make heating safe and stable.
4. The silo has a large capacity, which can improve the efficiency of a single construction;
The inner lifting silo can spread about 5 cubic meters of stone without lifting the hopper, which can realize construction in culverts, bridges and various height-restricted conditions.
5. The power of the hydraulic system adopts the full power of the main vehicle, which is stable and energy-saving and environmentally friendly.
6. Asphalt spraying achieves three overlaps to ensure more uniform spraying.
7. It can realize zero-start spraying.
8. Asphalt pump adopts Belgian JOHNSON pump, which has good self-priming performance, large speed range, good sealing performance and stable flow, which ensures the quality of asphalt spraying.
9. It has a unique construction anti-collision and obstacle avoidance sprinkler frame, which can better protect the sprinkler frame from damage.
10. Asphalt spraying adopts high-precision nozzles to ensure the spraying consistency of each nozzle and improve the uniformity of asphalt spraying. The asphalt pipeline adopts automatic control valve, and the asphalt pipeline is fully covered with heat-conducting oil. After the construction, the asphalt in the pipeline is forcibly recovered by the asphalt pump and high-pressure air without cleaning.
11. Stone spreading and asphalt spreading are respectively controlled by multiple sets of cylinders to control the spreading (sprinkling) width, and each cylinder can be independently controlled and adjusted freely.
12. The silo is equipped with a high-definition camera and lens dust removal function, which can observe the material level of the stone at any time in the cab.
13. The asphalt tank is equipped with a vertical powerful spiral stirring device, the asphalt has strong fluidity, and the temperature rises evenly without dead ends, which can effectively prevent the separation of rubber powder and asphalt and the precipitation and demulsification of emulsified asphalt, and improve the heating efficiency. During driving, the asphalt can be heated and insulated to improve work efficiency.
14. The intelligent control system adopts a vehicle-mounted special controller to accurately measure the speed of the vehicle and the pump, which is not affected by the speed of the vehicle. Completion in the cab.