Large inclination belt conveyor load start details

2017-04-10

Large inclination belt conveyor load start, especially overload or full load start, refers to the release of the brake immediately after the turn on the motor, the conveyor belt in the coal gravity and the motor under the action of electric power, the starting acceleration will be too large.

There are two ways to start: one way is to release the brake, let it rely on the natural gravity of the coal to accelerate to the speed of the motor close to the synchronous speed when the motor to reduce the starting acceleration, the latter way of starting and acceleration are Smooth, but requires the control system must be sensitive and reliable. There is also a way to start, is to impose a certain braking torque conditions connected to the motor. This is a reliable starting method, but need to use brake torque adjustable braking method.
 
The first start-up mode will start immediately after the large inclination belt conveyor is powered on, but because the conveyor belt has a lot of material, so the motor and conveyor belt to bear a huge load, the conveyor belt to withstand the huge pull, it is easy The motor load is too large to burn or the conveyor belt is pulled off phenomenon. Therefore, in the modern coal mines and other industrial and mining enterprises in the production process used in the large inclination belt conveyor are generally equipped with a soft start device or protection device to ensure the safety of equipment. Soft start device can achieve the material on the conveyor belt or no load from the zero start slowly running, can effectively protect the motor will not be a huge impact on the current or the load is too large to burn, but also can effectively protect the conveyor belt The
 
The second way to start is to apply a certain braking torque under the conditions of the motor, to achieve the large inclination belt conveyor start, this load start need to invest relatively large, so in modern coal and other industrial and mining enterprises have ceased to use. With the use of large inclination belt conveyors in coal mines, docks, power plants and other places more and more widely, the transport capacity, long distance, inclination of the large inclination belt conveyor more and more demand, but also require them safe and reliable , High degree of automation and low operating costs, thus saving infrastructure investment.
 
Operators in the use of large inclination belt conveyor, if you need to start the load need to pay attention to the following aspects, to ensure the safety of equipment and personnel. 1. Check the device before starting. 2. Make sure that the brakes have jumped, do not prevent the device from running, and then control the switch to start.
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