Analyze the normal empty stop state of the mesh belt conveyor!

When the mesh belt loading conveyor needs to realize normal idle stop, the mesh belt conveyor may have just finished working at this time, and the mesh belt conveyor is in a negative working state. Therefore, at this time, the hydraulic brake must be put in first, and the acceleration and acceleration detection of the mesh belt should be carried out, and the acceleration should not exceed 0.25m/s2. After the coal feeder stops feeding coal for 180s, the material on the mesh belt has basically been transported out of the down section, and the mesh belt conveyor is about to turn into positive power operation. At this time, the disc brake can be withdrawn from the braking state. After another 350s, all the materials on the mesh belt conveyor have been transported, and the mesh belt conveyor loses power and stops.

If the mesh belt is full of materials, when the disc brake is turned on, the mesh belt conveyor will be in a negative working state, and it is impossible to know the working state of the mesh belt conveyor every time it is started. Therefore, it is necessary to put the disc brake in advance, and carry out the detection of the speed and acceleration of the mesh belt, and control the acceleration not to exceed 0.25m/s2, so as to avoid speeding accidents.

If the material on the mesh belt is not enough to make the mesh belt conveyor reach the rated belt speed, after a period of delay, after the mesh belt conveyor enters the electric working condition, start the driving device at the head of the machine, and then when the mesh belt When the belt conveyor reaches the rated belt speed, the drive device at the tail is also put into it. If the mesh belt conveyor reaches the rated belt speed after the disc brake is turned on for a period of time, the driving device at the rear of the machine will automatically put into operation, and after a period of delay, the driving device at the head will also be put into working condition. In this way, the load start of the mesh belt conveyor is all completed. The mesh belt conveyor will enter normal operating conditions.

When the mesh belt conveyor stops with a heavy load, it may be in negative working state, and the disc brake must be put into operation first, and the running acceleration of the mesh belt conveyor must be detected. The driving device of the head of the machine will first be powered off and shut down. Because the motor of the tail driving device acts as a brake during the lowering process, there is no need to stop the motor immediately. After a period of delay, the machine will be powered off and stopped. Afterwards, after the mesh belt conveyor enters the automatic control state of the downward movement, it will control the disc brake to output the corresponding braking torque according to different downward movement accelerations, so as to ensure that the downward movement speed of the mesh belt conveyor is controlled at less than 0.25m/s2 In the range.

When the speed of the mesh belt conveyor is less than 1.0m/s, the electronic control will put the disc brake into the braking state, and the mesh belt conveyor will stop with load. Of course, the head backstop is put into operation to ensure the safety of the system only when the upper section is stopped with load. When the head and tail driving devices are put into operation and the mesh belt conveyor reaches the rated belt speed, the hydraulic brake system will exit the working state, and the speed detection device will be in the normal working state. After a period of delay, the electric control sends out a signal to allow coal feeding, and the mesh belt conveyor enters the normal operating state. When the mesh belt loading conveyor needs to realize normal idle stop, the mesh belt conveyor may have just finished feeding coal at this time, and the mesh belt conveyor is in a negative working state. Therefore, at this time, the hydraulic brake must be put in first, and the mesh belt acceleration and acceleration detection should be carried out. After the coal feeder stops feeding coal for 180s, the materials on the mesh belt have basically been transported out of the lower section, and the mesh belt conveyor It is about to become a positive power operation. At this time, the disc brake can be withdrawn from the braking state. After another 350s, all the materials on the mesh belt conveyor have been transported, and the mesh belt conveyor loses power and stops. The above is a brief introduction brought to you by the editor of the mesh belt loading conveyor. Partners in need can log on to our official website for detailed consultation.

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