Explosion-proof electric gate valve for mine use manual

A good machine must have the correct method of operation. The most important thing is to have sufficient pre-operation preparation.
　　 The specific operation method of the electric mine explosion-proof electric gate valve includes two blocks of pre-operation preparation and operation precautions as follows:
(I) Preparation before operation
1. Before operating the mining explosion-proof electric gate valve , read the operating instructions carefully.
2. Before operating, be sure to know the flow of gas. Attention should be paid to checking the opening and closing signs of mining explosion-proof electric gate valves.
3, check the appearance of the electric valve to see if the electric mine explosion-proof electric gate valve is damp, if there is moisture for drying; if there are other problems to be dealt with promptly, no fault operation.
4. For an electric device that has been decommissioned for more than three months, check the clutch before starting. After confirming that the handle is in the manual position, check the insulation, steering and electrical wiring of the motor.
(II) Precautions for operation of explosion-proof electric gate valve for electric mine
1, when starting, confirm the clutch handle in the corresponding position
2. If the electric valve is controlled in the control room, turn the switch to the REMOTE position and then control the switch of the electric valve through the SCADA system.
3, if manually controlled, the switch in the LOCAL position, the local operation of the electric valve switch, electric valve open in place or off in place when it will automatically stop working, and finally to run the switch to the middle position.
4. When on-site operation of mining explosion-proof electric gate valve is used, the opening and closing instructions of the mining explosion-proof electric gate valve and the operation of the valve stem shall be monitored . The opening and closing degree of the mine explosion-proof electric gate valve shall meet the requirements.
5, using the full-closed mine site operating when electric explosion-proof valve, before the mine explosion-proof electric valve off place, should stop the electric closing valve, the micro switch mine explosion-proof electric valve CLOSED.
6. When the mine explosion-proof electric gate valve after setting the stroke and over-torque controller is fully opened or fully closed, the mine-use explosion-proof electric gate valve should pay attention to monitoring the control of the stroke, such as the mine explosion-proof electric gate valve to the position. If there is no stoppage, emergency shutdown should be performed manually immediately.
7. During the process of opening and closing explosion-proof electric gate valves for mines, it is found that when the signal indicator lamps are incorrect and the mine explosion-proof electric gate valve has abnormal noises, it shall be stopped and checked in time.
8. After the operation is completed, the power supply of the electric mine explosion-proof electric gate valve should be turned off.
9. When operating multiple mining explosion-proof electric gate valves at the same time, attention should be paid to the operation sequence and meet the production process requirements.
10. When a large-diameter mine explosion-proof electric gate valve with a mine explosion-proof electric gate valve is opened, if the pressure difference at both ends is large, the bypass valve shall be opened to adjust the pressure, and then the main valve shall be opened: after the main valve is opened, Close the bypass valve immediately.
11. The ball valve passing through must be fully open when receiving or sending a clear ball.
12. The operating ball valve, gate valve, globe valve and butterfly valve can only be fully opened or fully closed, and no adjustment is allowed.
13. In the process of operating the gate valve, globe valve and plate valve, when closing or opening to the top or bottom dead point, it should be turned 1/2~1
ring.