两翼对角式通风系统费用现值法优化  

Cost Present Value Method Optimization of Two Wing Diagonal Ventilation System

作　　者：彭云 刘海龙 PENG Yun;LIU Hailong(Sonid Right Banner Zhurihe Copper Industry Co.,Ltd.,Sonid Right Banner 011200,China;School of Land Resources Engineering,Kunming University of Science and Technology,Kunming 650093,China;Beijing Huaxia Jianlong Mining and Technology Co.,Ltd.,Beijing 100070,China)

机构地区：[1]苏尼特右旗朱日和铜业有限责任公司,内蒙古苏尼特右旗011200 [2]昆明理工大学国土资源工程学院,云南昆明650093 [3]北京华夏建龙矿业科技有限公司,北京100071

出　　处：《矿业工程研究》2024年第1期73-78,共6页Mineral Engineering Research

基　　金：国家自然科学基金资助项目(51574123)。

摘　　要：为分析矿井通风系统在运营周期内的经济性,建立通风系统技术经济指标体系,分析单条回风井在固定风量下的技术经济特征和两翼对角式通风系统在不同风量分配方案下的技术经济特征.结果表明:通风系统阻力、风机功率、回风井风速、风机购置费和年运营电费随回风井断面面积增加而线性减小,基建费、年检修费随回风井断面面积增加而线性增加;回风井前期投入随回风井断面面积增加而增加,后期运营成本随回风井断面面积增加而减小;回风井费用现值随回风井巷道断面面积增加依次存在递减区间和递增区间,存在最小值;回风井应以经济断面和经济风速作为回风井建设方案;根据通风系统中回风井风量分配方案不同时费用现值不同,将风量合理分配到两翼回风井再确定回风井经济断面等参数,有利于提高通风系统经济性.In order to analyze the economic characteristics of mine ventilation systems during the operational cycle,a technical and economic indicator system for ventilation systems is established.This involves analyzing the technical and economic characteristics of a single return airway under fixed air volume conditions and the technical and economic characteristics of bilateral diagonal ventilation systems under different air volume distribution schemes.Results show that the resistance of the ventilation system,fan power,return airway wind speed,fan purchase cost,and annual operating electricity cost linearly decrease as the cross-sectional area of the return airway increases,while the infrastructure cost and annual maintenance cost linearly increase with the increase of the return airway s cross-sectional area.The initial investment for the return airway increases with the increase of the cross-sectional area,but the later operational costs decrease with the increase of the cross-sectional area.There are decreasing and increasing intervals for the present value of the return airway costs as the cross-sectional area of the return airway tunnel increases,with a minimum value present.The return airway should be constructed based on economical cross-section and wind speed.According to the different present values of costs when the air volume distribution scheme in the return airway of the ventilation system changes,rationally distributing the air volume to the bilateral return airways and then determining the economic cross-section parameters of the return airway can improve the economic efficiency of the ventilation system.

关 键 词：两翼对角式 费用现值 经济断面 经济风速 

分 类 号：TD714[矿业工程—矿井通风与安全]