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4223工作面是我国自己设计、自己制造的BZZB型液压支架、MLS2—150型双滚筒采煤机,SGW—150型运输机、RBI型乳化液泵站成套设备的采煤综合机械化试验生产工作面.从三月分开始到十一月上旬胜利的采完了,全工作面共产煤148,524吨,割煤816刀,裁割总长度101,497米,各项技术经济指标都超过了本矿同煤层历史最高水平.这是在毛主席革命路线指引下,坚持“独立自主,自力更生”方针的伟大胜利,也是批林批孔运动的伟大胜利.关于四尺煤回采工作面采用综合机械化以后的通风瓦斯问题.将有一个全工作面的系统总结.在这里仅是将工作面在割煤时煤层瓦斯涌出和通风阻力状况的专门测定加以分析.以揭开工作面高速度下采煤与瓦斯涌出量之间的关系.
4223 face is our own design, their own BZZB-type hydraulic support, MLS2-150 double drum shearer, SGW-150-type transport aircraft, RBI emulsion pump complete sets of equipment for coal mechanization test production work surface. From the beginning of March until the beginning of November, the total coal production was 148,524 tons of coal, 816 tons of coal were cut and the total cutting length was 101,497 meters. The technical and economic indicators exceeded the highest historical level of the coal seam in this mine This is a great victory under the guideline of Chairman Mao’s revolutionary line and the principle of “independence and self-reliance” and also a great victory in criticizing the proletarian and plutocratic movement.On the issue of using ventilation gas after comprehensive mechanization for the four-foot coal mining face, there will be A systematic summary of the whole working face Here we only analyze the specific measurement of coal seam gas emission and ventilation resistance when the coal face is cutting coal to reveal the difference between coal mining and gas emission at the working face at high speed Relationship.