工作面上隅角瓦斯超限治理技术及相关设备选型研究

Study on Gas Control Technology and Related Equipment Selection in Upper Corner of Working Face

针对经坊煤业3303工作面上隅角及回风巷瓦斯及有害气体的治理问题,提出采用调节风窗与局部通风机联合的均压通风技术,通过理论计算确定了选用面积为0.55 m^2的调节风窗、型号为FBDNO-8-2×45 kW的对旋局部通风机。根据对均压系统参数进行的现场监测结果可知,采用均压通风技术,可有效降低回采工作面内瓦斯及有毒有害气体的浓度,说明不仅该技术具有可操作性,而且相关的设备选型合理。

Gas in upper corner and return air lane of 3303 face of Jingfang Coal Industry Co., Ltd. The problem of the treatment of harmful gases, The equalizing pressure ventilation technology combined with regulating air window and local fan is put forward. Through theoretical calculation, the adjusting air window with area of 0.55 m2 is selected, and the type of counterrotating local fan is FBDNO-8-2 ×45 kW. According to the field monitoring results of the parameters of the pressure equalizing system, it can be seen that by using the equalizing pressure ventilation technology, the The effective reduction of the concentration of gas and poisonous and harmful gases in the mining face shows that the technology is not only operable, but also the relevant equipment selection is reasonable.