Introduction:
The belt conveyor is a kind of traction continuous transportation equipment. It is widely used in coal, metallurgy, mining, port, building materials, chemical industry, light industry, petroleum, and transportation industries. It is an ideal supporting equipment for coal mining mechanization, working environment. -10 ° C ~ +40 ° C.


Technical Difficulties:
The lower belt conveyor is a special belt conveyor that transports materials from high to low. This belt conveyor has negative power during transportation of materials, and the motor is in the state of power generation braking. Effectively control the belt conveyor full load start, stop, especially in the case of sudden power loss, realize the controllable soft brake of the belt conveyor, and prevent the belt conveyor from being the key technology of the belt conveyor.


Solution:
1. Power generation operation mode, the conveyor runs in the “zero power loss” state, and the excess power can also be used by other equipment.
2, signal safety acquisition design, through the signal acquisition logic design, so that the system can not lose the logic design of the entire system after the cable is interrupted.
3, the protection device design, through a simple electrical switch to build a test network for the entire downstream conveyor belt machine monitoring.
4. The logic control of the emergency brake lock system ensures the safety and reliability of the transport feeder under the high dip angle.
5, long-distance signal stable acquisition anti-interference circuit design, reliable, fidelity transmission long-distance acquisition signal.