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淮北矿务局朱庄煤矿自75年试用国产ZY—3A型支撑掩护式支架至今已有十年,先后在四、五槽煤层中开采十个综采工作面,使用过两种架型,四套支架:国产ZY—3A型支撑掩护式支架、西德G320—13/32和G360—20/36型掩护式支架以及最近使用的QY250—13/32型掩护式支架。朱庄矿在使用西德G320—12/32型掩护式支架及其配套设备过程中,克服了地质构造复杂,煤层变化大,工作面压头断层多,顶板破碎等困难,取得了良好的经济效果。现总结如下。一、综采工作面概况该套支架主要在五槽煤中使用。工作面走向一般比较短,最短的251013工作面走向
Zhuangzhuang Coal Mine in Huaibei Mining Bureau has been testing the homemade ZY-3A type support shield bracket for 75 years since its establishment in 1975. Ten fully mechanized coal mining face has been drilled successively in four or five coal seams, Shelf: Domestic ZY-3A-type support shield support, West German G320-13 / 32 and G360-20 / 36-type shield bracket and the recently used QY250-13 / 32-type shield bracket. Zhuzhuang mine in the use of West Germany G320-12 / 32-type shield bracket and its supporting equipment, to overcome the complex geological structure, coal seam variation, head pressure head fault and more broken roof, and achieved a good economy effect. Now summarized as follows. I. Overview of fully mechanized mining face The bracket is mainly used in five-slot coal. Face to the general shorter, the shortest 251013 face toward