Design and Application of Automatic Control Locking Device for Explosion-proof Cover of Coal Mine Ventilation Shaft
During the anti wind operation of the ventilation system in Yong'an Coal Mine,the explosion-proof cover of the vertical air shaft adopts a traditional manually operated pressure plate type anti wind locking device.Without preparation,the compression of the explosion-proof cover and the reverse operation of the fan cannot be completed within 10 minutes,which poses serious safety hazards.A hydraulic driven and automated control based explosion-proof cover automatic control locking device is proposed to address this issue.It mainly consists of a hydraulic driven explosion-proof cover anti wind locking device and an automatic control system.By improving the locking mechanism of the explosion-proof cover,fast and reliable anti wind operation can be achieved.The results show that the automatic control locking device of the explosion-proof cover can remotely control the compression of the explosion-proof cover and the anti wind operation of the fan.The anti wind operation time is within 10 minutes,which meets safety regulations,can reduce labor intensity,reduce safety risks caused by manual operation,and there have been no ventilation safety accidents caused by the compression problem of the explosion-proof cover.The economic and social benefits are significant.
mine anti windair shaft explosion-proof coverlocking deviceautomatic control
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