Study on Serialization of Closed Dust Control Device of Hydraulic Support in Fully Mechanized Mining Face with Different Mining Height
In order to solve the problem of dust pollution caused by hydraulic support column lowering and moving in fully mechanized mining face with different mining heights,a serialization of closed dust control device for hydraulic support was studied.Based on the characteristics of dust production by lowering column and moving support and the structure of hydraulic support,the inter-support spray-jet dust extraction purification device,and tension spring type,torsion spring type and sliding hydraulic support dust prevention device suitable for fully mechanized mining face with mining heights below 4 m,4-6 m,6 m and above 6 m were developed,which can reduce the dust production of support by more than 90%at the source.This series of devices have been popularized and applied in several mines under CHN energy group and Shaanxi coal and chemical industry group,and have been well received by the miners.
fully mechanized mining facedust pollutionhydraulic supportclosed dust control deviceserialization
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