asphalt synchronous chip sealer truck is mainly used for gravel sealing process in road surface, bridge deck waterproofing and lower sealing layer. It is a special equipment that synchronizes the spraying of asphalt and the spreading of crushed stone, so that the surface contact between the asphalt binder and the aggregate occurs in the shortest time to achieve the maximum cohesiveness between them. It can also be used as a special equipment to complete the spreading of gravel and asphalt alone.
The composition of the synchronous gravel sealing car:
It is mainly composed of automobile chassis, asphalt spreading system (spraying system, asphalt tank, heating part, hydraulic part, control part), stone spreading system (silo, material gate control mechanism and spreader), electrical operating system, auxiliary machine system .
The working principle of the asphalt synchronous chip sealer truck:
The hydraulic system of the whole vehicle is driven by a full-power PTO. Asphalt spraying is controlled by the electric control and air control system to control the flow rate of the asphalt pump and the opening of the asphalt valve. It is sprayed onto the road by the pipeline, after spraying, nozzles, and the gravel spraying is controlled by the electric control and air control system to control the lifting and spreading of the hopper. The rotation speed of the roller, the opening height of the material door, the number of material doors opened, and the angle of the diverter plate. The gravel is evenly spread on the road surface from the hopper-material gate-spreading roller-splitting plate-lower sliding plate. The two sets of working systems are controlled by the main control computer to achieve the perfect combination of the spread of gravel and the spread of asphalt after accurate calculation of various data of the construction operation.
Performance characteristics of asphalt synchronous chip sealer truck technology:
Good waterproof performance (can increase the crack resistance of the pavement, cure mild cracks on the pavement, and reduce the reflection cracks on the pavement) 2. Good adhesion and anti-skid properties (the aggregate bonded to the pavement by the asphalt can directly contact the tire, Its roughness increases the coefficient of friction with the tire)
Good wear resistance and durability (simultaneously sprayed asphalt and stone form asphalt-bonded stone, 2/3 of the height of its crushed stone particles sinks into the asphalt, increasing the contact area between the two, and due to the gross attraction of the asphalt binder A concave surface is formed so that the concave surface is tightly combined with the gravel to prevent the loss of the gravel.)
Good economy (lower energy consumption, reliable operation, reduced road maintenance costs, convenient maintenance and high cost performance.)
Exclusive use of full hydraulic drive mode, no need to add any auxiliary power to make the operation more simple and convenient.
The exclusive use of high-efficiency heat-conducting oil boiler to heat up greatly improves the temperature-rise speed and breaks the traditional flue heating method.
The equipment is completely controlled by electricity and has a high degree of automation. It can accurately calculate the amount of asphalt sprayed and stone chips scattered during the construction process of the equipment;
The whole machine runs stably, spreads evenly, and can freely adjust the width of the asphalt spreader;
The overall operation is more user-friendly, with remote control and on-site operation, which brings great convenience to the operator;
Through the perfect combination of electrical control and constant pressure device of hydraulic system, zero-start spraying is realized;
The equipment can realize the construction of stone chip spreading by using the inner lifting hopper, which is more convenient for culvert construction, under bridge construction, and curve construction;
It can spray various asphalt media (hot asphalt, thermally modified asphalt, diluted asphalt, emulsified asphalt rubber modified asphalt (should meet the following two conditions: 1 rubber modified asphalt viscosity Haake 190 ℃ 1500 ~ 2200Pa.s; 2 rubber modified asphalt Asphalt spraying temperature 200～210℃; 3. Rubber-modified asphalt spraying width 4000mm)