Downwards Belt Conveyor

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 can be used to transport block, granular and Bulk material items. Among them, the belt conveyor with large dip angle is suitable for the transportation of underground coal mines, roadway tunneling, downhill transportation, main inclined shaft lifting, open pit mine and ground transportation system. It is an ideal supporting equipment for coal mining mechanization, working environment. -10 掳 C ~ +40 掳 C.

The principle of power generation:

The lower belt conveyor is to transport the material from high to low. At this time, the conveyor only needs to overcome the friction, so the load is very light. If the component of gravity of the conveying material in the running direction is greater than the frictional force of the belt machine itself, the rotor of the motor will be passively accelerated under the drag of the material. When the motor speed exceeds its own synchronous speed, the motor will feedback the power and The braking force is generated to limit the speed of the motor to continue to rise, that is, the potential energy of the material falling is converted into electric energy by the motor. Therefore, the electrical energy emitted from the material being transported can be re-categorized into the grid through a series of means.

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 鈥渮ero power loss鈥� 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.

Technical Data of Downward Belt conveyor锛�

Note锛歍he carrying capacity in the table is calculated on the basis of 1t/m鲁 volumetric weight, horizontal conveyance, and idler troughing angle at 30掳.