Composition of synchronous gravel sealing vehicle:
Mainly composed of car chassis, asphalt distribution system (spraying system, asphalt tank, heating part, hydraulic part, control part), stone distribution system (silo, material door control mechanism, and spreader), electrical operation system, and auxiliary system.
Working principle of synchronous gravel sealing vehicle:
The synchronous crushed stone sealing vehicle is driven by a full power take-off to drive the hydraulic system of the entire vehicle. The asphalt distribution is controlled by an electric and pneumatic system to control the flow rate of the asphalt pump and the opening of the asphalt valve from the pipeline, rear spray, nozzle, and spray onto the road surface. The crushed stone distribution is controlled by an electric and pneumatic system to lift the hopper, rotate the speed of the distribution roller, open the height of the material door, the number of material doors open, and the angle of the distribution plate. The crushed stone is evenly distributed on the road surface by the hopper material door, the distribution roller, the distribution plate, and the lower sliding plate. The two sets of working systems are controlled by the main control computer to achieve a perfect combination of crushed stone distribution and asphalt distribution after precise calculation of various construction operation data.
The performance characteristics of synchronous gravel sealing technology:
Good waterproof performance (can increase the crack resistance of the road surface, cure mild turtle net cracks, and reduce reflection cracks on the road surface) 2. Good adhesion and slip resistance (aggregates bonded to the road surface by asphalt can directly contact the tires, increasing their roughness and friction coefficient with the tires)
Good wear resistance and durability (synchronized spraying of asphalt and stone forms asphalt bound stone, with 2/3 of the height of the crushed stone particles trapped in the asphalt, increasing the contact area between the two. Moreover, due to the gross attraction of the asphalt bound material, a concave surface is formed, which tightly combines with the crushed stone to prevent the loss of crushed stone.)
Good economy (low energy consumption, reliable operation performance, reduced road maintenance costs, convenient maintenance, and high cost-effectiveness)
Exclusive use of full hydraulic drive mode, without the need to add any auxiliary power, making operation simpler and more convenient.
Exclusive use of efficient heat transfer oil boiler for heating, greatly improving the temperature rise speed and breaking the traditional flue heating method.
This equipment is fully equipped with electrical control, with a high degree of automation, and can accurately calculate the amount of asphalt spraying and stone chip distribution during the construction process;
The whole machine runs stably, spreads evenly, and the width of asphalt spraying can be freely adjusted;
The overall operation is more user-friendly, with remote control and on-site operation, bringing great convenience to the operator;
Through the perfect combination of electrical control and hydraulic system constant pressure device, zero start spraying has been achieved;
This equipment uses an internal lifting hopper to achieve the construction of stone chip spreading, which is more convenient for culvert construction, bridge construction, and bend construction;
It can spray various asphalt media (hot asphalt, hot modified asphalt, diluted asphalt, emulsified asphalt, rubber modified asphalt (should meet the following two conditions: 1. viscosity of rubber modified asphalt Haake 190 ℃ 1500-2200Pa. s; 2. spraying temperature of rubber modified asphalt 200-210 ℃; 3. spraying width of rubber modified asphalt 4000mm)
