基于分区通风的采空区漏风通风优化分析研究  

Optimization analysis of air leakage ventilation in goaf based on zonal ventilation

作　　者：李晓磊 Li Xiaolei(No.1 Mine,Shanxi Huayang Group Xinneng Co.,Ltd.,Yangquan 045000,China)

机构地区：[1]山西华阳集团新能股份有限公司一矿,山西阳泉045000

出　　处：《煤炭与化工》2024年第6期112-115,119,124,共6页Coal and Chemical Industry

摘　　要：针对山西华阳集团新能股份有限公司一矿通风系统现存的采空区漏风、工作面风流短路、风机选型不合理的问题,以工作面采空区为研究对象,建立采空区通地表漏风通风系统模型,分别研究分析采空区通地表漏风口至工作面的距离、漏风速度、采空区大小3个因素对采空区通地表漏风的影响,揭示影响规律;然后对矿井现有通风系统进行改造设计,利用通地表采空区诱导通风,设计采空区做独立回风井分区通风系统,并进行合理性分析;最后选取工作面下五中段建立采空区模型,实施改造后的通风方案,风量由3.2 m^(3)/s提高到6.58 m^(3)/s,且风机返风量达60%,改善了矿井部分工作面通风效果,满足矿井日常生产的通风需求。Aiming at the existing problems of air leakage in goaf,short circuit of air flow in working face and unreasonable selection of fans in ventilation system of No.1 Mine of Shanxi Huayang Group Xinneng Co.,Ltd.,taking the goaf of working face as the research object,the model of air leakage ventilation system in goaf is established.The influence of three factors,namely the distance from the air leakage outlet to the working face,the air leakage velocity and the size of the goaf,on the air leakage of the goaf is studied and analyzed respectively,and the influence law is revealed.Then,the existing ventilation system of the mine is reformed and designed.The induced ventilation through the surface goaf is used to design the goaf as an independent return air shaft partition ventilation system,and the rationality analysis is carried out.Finally,the goaf model was established in the fth middle section of the working face,and the ventilation scheme was implemented after the transformation.The air volume was increased from 3.2 m^(3)/s to 6.58 m^(3)/s,and the return air volume of the fan was 60%,which improved the ventilation effect of some working faces in the mine and met the ventilation demand of daily production in the mine.

关 键 词：分区通风 采空区漏风 系统优化 诱导通风 

分 类 号：TD714[矿业工程—矿井通风与安全]