Asphalt distributor is used to distribute permeable oil, waterproof layer and adhesive layer of asphalt pavement of high grade highway. It can also be used for the construction of county and township highways with stratified paving technology. It is composed of automobile chassis, asphalt tank, asphalt pumping and spraying system, heat conduction oil heating system, hydraulic system, combustion system, control system, pneumatic system and operating platform.
Knowing the correct operation and maintenance of asphalt distributor can not only extend the service life of the equipment, reduce the cost of equipment maintenance, but also ensure the smooth progress of the construction project.
So what problems should be paid attention to when the asphalt distributor works?
Before use, please check whether the position of each valve is accurate and do the preparatory work before work. After starting the motor of the asphalt distributor, check the four thermal oil valves and the pressure gauge, start the engine after everything is normal, and the force extractor starts to work. Test asphalt pump, cycle for 5 minutes, pump head shell, hot hand, then slowly close the valve of the heat transfer pump. If the heating is insufficient, the pump will not turn or there is a noise phenomenon, you need to open the valve to continue heating the asphalt pump until it can operate normally.
During the working process, the asphalt liquid must ensure the working temperature of 160~180 ° C, and can not be filled too full (during the injection of asphalt liquid, pay attention to the liquid level pointer, and check the tank mouth at any time). After the asphalt liquid is injected, the refueling inlet must be closed tightly to avoid the overflow of the asphalt liquid during transportation.
During use, asphalt may not be able to be pumped in, and it is necessary to check whether the interface of the asphalt suction pipe is leaking. When the asphalt pump and pipeline are blocked by solidified asphalt, you can use a blowtorch to bake, do not force the pump to turn. When baking, attention should be paid to avoid directly baking ball valves and rubber parts.
Keep the car at a low speed while spraying asphalt. Do not step on the accelerator, otherwise it may cause damage to the clutch, asphalt pump and other components. When spreading asphalt 6m wide, always pay attention to the obstacles on both sides to prevent collision with the distribution pipe. At the same time, asphalt should always maintain a large circulation
State until the end of the spreading work.
After the operation is finished every day, if there is any remaining asphalt, it must be put back into the asphalt pool, otherwise it will not work next time.
In addition, the emulsifying machine must also pay attention to daily maintenance:
1. Emulsifying machine and conveying pump and other motors, agitators, valves should be daily maintenance.
2. After the end of the work every day, the emulsifying machine should be cleaned.
3. The speed pump used to control the flow should be regularly tested for accuracy, and timely adjustment and maintenance. Asphalt emulsifying machine should regularly check its stator and rotor matching gap, when can not reach the minimum gap specified by the machine should consider replacing the stator and rotor.
4. If the equipment is disabled for a long time, the liquid in the tank and pipeline should be emptied (emulsifier aqueous solution should not be stored for a long time), each hole cover should be covered tightly, keep clean, and each moving part should be filled with lubricating oil. The rust in the tank should be removed when it is used for the first time and re-used after a long time, and the water filter should be cleaned regularly.
5. Regularly check whether the terminals in the electric control cabinet are loose, whether the wires are worn during shipment, eliminate dust, and avoid damage to the parts. Frequency conversion governor is a precision instrument, please refer to the operation manual for specific use and maintenance.
6. Emulsifier aqueous solution heating mixing tank there is a heat transfer oil coil, into the water tank should be injected cold water should first turn off the heat transfer oil switch, add the required water and then turn on the switch heating. Pouring cold water directly into the high temperature heat conduction oil pipeline is easy to crack the welding joint.
More asphalt mixing plant, please clink web of ltasphaltplant.com.