晋华宫矿DHC3/ZCFD4型煤矿井下液压支架操作阀改造

Transformation of Underground Hydraulic Support Valve Operation in DHC3/ZCFD4 Shaft in Jinhuagong Mine

液压支架是煤矿综采工作面的支护设备,其主要作用是支护采煤顶板,维护作业空间安全,推移工作面采运设备。晋华宫煤矿原大采高ZZ9900支架已经不再需要,采用ZZS6000支撑掩护式支架,为降低成本,对原ZZ9900支架的操作阀DHC3/ZCFD4进行结构改造,并进行性能比较。实践表明,改造后的操作阀性能稳定,使用效果好,创造了经济效益。

Hydraulic support is support equipment of mine fully mechanized working face, mainly supporting coal mining roof, maintaining the safety work space, and advancing working face transport equipment. The original large mining height ZZ9900 support was no longer needed, ZZS6000 shield support was adopted, in order to reduce the cost, operating valve DHC3/ZCFD4 of ZZ9900 support was transformed, with performance comparison. The result showed the operation valve with good performance and economic benefit.