Trouble shooting method of cylinder in asphalt mixing station

What are the specific aspects of cylinder failure in asphalt mixing plants?

(1) The leakage of the cylinder is usually caused by the eccentric installation of the piston rod, insufficient lubricant, wear and damage of the seal ring and the seal ring, impurities in the cylinder and damage of the piston rod. Asphalt mixing plant manufacturers should adjust the center position of the piston rod, regularly check the reliability of the oil mist detector, and remove impurities in the cylinder in time.

(2) The output power of the cylinder is insufficient and the movement is not smooth. The piston or piston rod is stuck, poor lubrication, insufficient air supply, or condensation and impurities in the cylinder. Adjust the center position of the piston rod and check the reliability of the fuel injector. If the gas supply pipeline is blocked, the condensate and impurities in the steel cylinder should be eliminated in time.

(3) The cushioning effect of the cylinder is poor. Usually, due to the damage of the buffer seal or the adjustment of the screw, replace the seal and the adjustment screw.

(4) The piston rod and cylinder head are damaged, usually due to the eccentric or slow installation of the piston rod. The punching mechanism does not work, and the center position of the piston rod should be adjusted in time. If necessary, replace the buffer seal ring or adjustment screw.

The asphalt mixing station is divided into four parts: sand and stone feed, powder (cement, fly ash, expansion agent, etc.) feed, water and admixture feed, transmission mixing and storage. Its working process is shown in Figure 1. After the mixer control system is powered on, it enters the operation interface of the man-machine dialogue. The system performs initialization processing which includes the formula number. Concrete grade, slump, production "square volume, etc.. Each silo. Weighing hopper is tested according to the weighing. Output empty or full signal to prompt the operator to confirm

Start the mixing control program to start the feeding of the sand and stone belt motor to the measuring hopper; open the butterfly valve of the fly ash and cement tank, start the screw machine motor to transport the fly ash and cement to the measuring hopper; open the water tank and admixture tank The control valve allows water and admixture to flow into the weighing hopper. After the measurement meets the set requirements, the weighing hopper door is opened, and the ingredients enter the mixer that has been started to mix and mix to the set time to open the mixer door, and the concrete enters the mixer that has received the material.

1. Each cylinder, control valve and motor operate according to the requirements of the coagulation mixing process. The control of each cylinder, control valve and motor must be accurate, stable and reliable.

2.The control system has two working modes, automatic and manual, and the relationship between them is independent and restricts each other.

3.The system has good anti-interference ability and perfect alarm self-protection function.

4.By communicating with the computer, you can display the system working status and fault alarm.