梅花井煤矿矿井通风系统优化及应用

Optimization and Application of Ventilation System of Meihuajing Coal Mine

梅花井煤矿为多煤层、分区开采,通风系统比较复杂。现阶段回风斜井和回风立井主通风机均已达到额定风量,主通风机能力不能满足矿井后续生产需求;矿井开采容易自燃,煤层并受热害威胁,尚未实现分区通风。因此对梅花井煤矿通风系统网络安全可靠性进行评价,先考虑提高有效风量率,通过实际测定,梅花井煤矿矿井有效风量率为89.87%。本文探讨实施以下措施消除了井下角联、无效通风巷道,有效控制各作业地点通风设施漏风,优化矿井通风网络,提高矿井有效风量率,使矿井通风系统合理、稳定、可靠。

As Meihuajing Coal Mine has multiple coal seams and adopts mining by areas,its ventilation system is very complex.At the present stage,the main ventilators of the return air inclined shafts and the return air vertical shafts have reached the rated air flow,but they still cannot meet the subsequent produc⁃tion requirements of the mine.The coal mining is threatened by coal seams susceptible to spontaneous com⁃bustion and heat damage and has not realized zoned ventilation.Therefore,in order to evaluate the safety and reliability of the ventilation system network of Meihuajing Coal Mine,this article first considers increas⁃ing the available air-flow rate which is 89.87%after actual measurement and then takes measures to elimi⁃nate the underground diagonal and useless roadways,control the air leakage of the ventilation equipment at different operating location effectively,optimize the ventilation network of the mines,improve the available air-flow rate,and make the ventilation system of the mine reasonable,stable,and reliable.