The regulations for the coal mine drainage multistage pump maintenance

The regulations for the coal mine drainage multistage pump maintenance

multistage pump, main pump mining area coal mine drainage and the design of power distribution equipment must meet the needs of the work, spare and repair, conform to the requirements of the 'coal mine safety regulations'; The temperature of the coal mine drainage multistage pump room should be less than 30 ℃.

the use of coal mine drainage multistage pump should be reliable, high and low water level alarm and standby water diversion device protection, such as motor has a short circuit, overload, grounding, undervoltage release protection, etc.

single pump starting time should be no greater than 5 min. Water pump should be used to rotate, each water pump normal continuous running time is less than 24 h. To stop the use, first close the gate valve, pressure gauge, then stop the motor.

coal mine drainage multistage pump to have system daily maintenance, preventive maintenance, etc. Mechanical and electrical the repairman every week for the main drainage equipment, mining the main pump drainage equipment maintenance at least once, overhaul and maintenance once a month. Each year to the main drainage system for a safety technical performance measurement, overhaul, updating, and put forward according to the results of the determination of plan, the low efficiency of drainage pumps to timely for overhaul and replacement as planned. In the first months of work, the oil change 100 hours, every 500 hours, after oil change at a time.

pumps, pipe, outlet, waterproof gate, door, power distribution equipment, transmission lines, etc. , must be comprehensive repair it again before the rainy season every year, warehouse, tap water Wells, the silt in the sedimentation tank and the ditch should thoroughly cleaned up, and all the work of water pump and standby water pump for a run at the same time the joint drainage experiment, identification of the main drainage drainage ability, found that the problem handled in time, and will test summary report to group co. , LTD. After parking in winter season, when using, the lower part of pump body must be drain plug unscrew put net medium, to prevent the frost crack.

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