曾7次荣获全国炮采冠军的开滦局荆各庄煤矿811采煤队,他们在全局第一个成功实现炮采工作面无坑木支护生产,将吨煤成本降低了6元多.长期以来,作为井下主要支护材料的坑木、其消耗量在整个炮采生产或本中所占比重最大.如何降低成本,实现无坑木生产一直是该局上下力求突破的难题.去年,荆各庄煤矿大胆提出以铁背板代替大板进行支护的设想,并于10月份起在采煤工作面进行了几个月的局部试验,取得成功.到令年2月底,该队工作面除上下出口外,全部实现钢铁支护,使炮采无抗木生产变成现实. Has won seven times the national artillery mining champion Kailuan Bureau Jinggezhuang coal mine 811 coalition, they successfully in the overall success of mining mining face without pit support production, the cost of coal per ton has been reduced by more than 6 yuan. For a long time, as the main supporting material downhole pit, the consumption of the entire artillery production or the largest share of this .How to reduce costs and achieve non-pit production has always been to strive to make breakthroughs in the bureau last year, Jinggezhuang Coal Mine boldly put forward the idea of ​​substituting the iron plate instead of the slab for support, and carried out several months of local tests on the coal mining face in October to achieve success. By the end of February the team work Except for the upper and lower exit surfaces, all of the steel support is realized, so that artillery mining without anti-wood production becomes a reality.