Hoist took the task in mine, such as ascending coal, coal gangue, lifting task personnel, equipment, etc., connected the mine ground and underground transportation, was one of the important equipment of the mine. Based on the mine hoist safety device directly affecting the normal work and safe operation of the elevator, through the daily operation and maintenance process, some drawbacks of protection design were found, which enhanced safety, in view of the mine hoist main motor temperature protection device, the overpressure protection device of the hydraulic pressure station and hydraulic brake safety online monitoring system has been optimized and improved, ensured the normal production of mine.
