特大型铁矿主辅联合式通风系统优化研究  

Optimization of Main and Auxiliary Combined Ventilation System in Extra-large Iron Mine

作　　者：邱熠华 QIU Yihua(Fujian Makeng Mining Co.,Ltd.,Longyan 364000,China)

机构地区：[1]福建马坑矿业股份有限公司,福建龙岩364000

出　　处：《铜业工程》2023年第5期112-118,共7页Copper Engineering

摘　　要：完善的矿井通风系统是有效预防非煤矿井中毒窒息事故发生的关键。以某特大型铁矿主辅联合式通风系统为研究对象,测试并分析采矿方法、作业中段数量等改变后对矿井通风效果的影响,应用矿井通风三维仿真系统软件从通风网络、通风动力、通风构筑物等方面优化矿井通风系统,并开展现场应用研究。结果表明:矿井总进风量增加约92 m^(3)/s,满足了生产规模为500万t/a的风量需求(670.0 m^(3)/s);东、西回风井的风量分配由1∶1.84优化到1∶1.35,趋于均衡,实现了双中段多分层同时作业的风流有序流动、主斜坡道风流稳定流动。这对及时排除作业过程中产生的污浊空气具有重要应用意义。A perfect mine ventilation system is the key to effectively prevent poisoning and asphyxiation accidents in non-coal mines.Taking the main-auxiliary combined ventilation system of a super-large iron mine as the research object,this paper tests and analyzes the influence of mining methods,the number of middle sections and other mining conditions on the mine ventilation effect.The mine ventilation three-dimensional simulation system software is applied to optimize the mine ventilation system from the aspects of ventila-tion network,ventilation power,ventilation structure and so on.The results show that the total intake air volume of the mine is in-creased by about 92 m^(3)/s by optimizing the auxiliary fan setting,the airflow path of the working area and the application of new ventila-tion structures,which can meet the demand of 670.0 m^(3)/s in the production scale of 5 million t/a.The air volume distribution of the east and westreturn airshaftsisoptimized from 1∶1.82 to 1∶1.35,which tendstobebalanced,and theflexibilityofairflow regulation isenhanced,so as to realize the orderly flow of air flow with double middle and multiple layers working at the same time,which has important appli-cation significance for timely removing the dirty air generated in the process of operation.

关 键 词：主辅联合式 矿井通风 进风量 矿用空气幕 风流有序流动 

分 类 号：TD725[矿业工程—矿井通风与安全]