摘要
煤矿井下主通风系统在检修切换时必须停风,这会造成井下瓦斯短时间浓度上升,严重影响煤矿井下空气质量,并有可能引起煤矿事故。为此,本文研究了矿井主通风机切换关键技术,并设计了新型风机结构以实现不停风倒机,最后采用了流体分析软件Fluent仿真风门传热性能以确定最优的结构形式。经山西某煤矿现场应用后表明,提出的风机装备实现了煤矿主通风机的不停风切换,整个风门切换用时为25 s,减少了煤矿通风系统隐患,为后期实现智能通风与远程监控提供了理论基础。
The main ventilation system of underground coal mine must stop the wind when switching over for maintenance,which will cause the concentration of underground gas to rise for a short time,which seriously affects the air quality of underground coal mine,and may cause coal mine accidents.Therefore,this paper studied the mine main ventilation fan switching key technology,and design of a new fan structure to realize without stopping the wind down machine,finally use the Fluent fluid analysis software to simulate the heat transfer performance of the damper to determine the optimal structural form.After a coal mine in Shanxi field application shows that the proposed fan equipment to realize the main ventilation fan of the coal mine without stopping the wind switching,the whole damper switching time for 25 s,reducing the coal mine ventilation system hidden danger,for the later realization of intelligent ventilation and remote monitoring to provide the theoretical basis.
作者
丁国栋
DING Guodong(Lijiayao Coal Industry of Jinneng Coal Mining Group Datong Company,Datong,Shanxi 037001,China)
出处
《自动化应用》
2023年第23期134-135,138,共3页
Automation Application
关键词
煤矿
风机
自主切换
coal mine
fan
autonomous switching
