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张小楼煤矿的设计生产能力为年产45万吨,中央边界式通风,风井安装两台70B_221—№18轴流式扇风机。参照邻近矿井沼气涌出情况,按低沼气矿井供风。1978年投产,运输大巷布置在-400。自1984年以来,山西系多次发生沼气突然大量涌出现象,其中在东翼-250第一石门掘进工作面进入山西系七层煤底板3m 钻眼时,沼气绝对涌出量为3.28m~3/min,沼气相对涌出置为10～11m~3/t·d。各层煤均多次自燃着火。矿井地温梯度为1.9℃/100m,-600m 岩石温度29℃。1983年以来,曾先后把扇风机的电机由185kw 换成380kW,并将叶片换成玻璃钢扭曲叶片,风
Zhang Xiaolu mine design and production capacity of 450,000 tons per annum, the central boundary-style ventilation, air shaft installation of two 70B_221-№ 18 axial fan. With reference to the emission of methane from nearby mines, the mines will be supplied with low-pressure gas. Put into operation in 1978, transportation lane layout at -400. Since 1984, a sudden large-scale outflow of methane has occurred in Shanxi Province. When the first Shimen driving face of East Wing -250 entered the 3m drill hole of the 7th floor of Shanxi coal seam, the absolute amount of methane emission was 3.28m ~ 3 / min, the relative emission of biogas is 10 ~ 11m ~ 3 / t · d. Each layer of coal are many spontaneous combustion. Mine geothermal gradient of 1.9 ℃ / 100m, -600m rock temperature of 29 ℃. Since 1983, the fan motor has been replaced by 185kw 380kW, and the leaves replaced by FRP twisted blades, the wind