论文部分内容阅读
我矿是五八年大跃进中开办起来的一个小煤窑,经过技术改造,逐步形成设计能力年产21万吨的矿井.开采煤层为朱罗纪须家河统第四煤组三号煤层(正七连),煤层厚度0.4—1.4米,倾角10—30度,煤质中硬,二级顶板.井田呈扇形,最大走向长度2500米,阶段平峒开拓,后退式开采程序.主要水平大巷使用COK—7吨架线式电机车.为一级瓦斯井,中央边界式通风.经过伟大的无产阶级文化大革命,广大职工深入批判了刘少奇和林彪的反革命修正
The mine is a small coal kiln started in the Great Leap Forward in 1988 and has been gradually transformed into a coal mine with an annual production capacity of 210,000 tons. The coal seam is the third coal seam of the No.4 coal group of Jurassic Xujiahe Formation Is seven consecutive), the seam thickness of 0.4-1.4 meters, inclination 10-30 degrees, the coal in the hard, two roof. Ida fan-shaped, the maximum length of 2500 meters, the stage flat open, back-type mining program. The COK-7 tonne overhead electric locomotive is a type of gas well with central boundary ventilation.After the Great Proletarian Cultural Revolution, the broad masses of workers deeply criticized the counterrevolutionary amending of Liu Shao-chi and Lin Biao