山东煤炭科技2025，Vol.43Issue(1)：71-75,81,6.DOI:10.3969/j.issn.1005-2801.2025.01.015
采煤工作面局部阶梯式供冷降温工艺研究及应用
Research and Application of Local Stepped Type Cooling Supply and Cooling Technique for Coal Mining Working Face
张习军1
作者信息
- 1. 中煤科工集团重庆研究院有限公司,重庆 400037
- 折叠
摘要
Abstract
The average dry bulb temperature of the 42011 coal mining working face in Xinzhuang Coal Mine during summer is as high as 33.6℃,the average wet bulb temperature is 33℃,and the average relative humidity is 96%.The harsh environment of high temperature and high humidity seriously endangers the occupational health of miners and even causes irreversible harm to their bodies.In order to solve the heat damage problem of the 42011 coal mining working face and improve the working environment of miners,a movable type local refrigeration and cooling system is studied.Adopting two sets of ZLF-450 local cold-air machine units for refrigeration,two-stage stepped type for cooling supply,and dust-proof water one-time heat rejection technique.This not only solves the problem of difficult heat rejection in the local cooling system,but also greatly improves the efficiency of refrigeration and cooling.After the cooling system is put into use,the average dry bulb temperature of the 42011 coal mining working face decreases by 7.9℃,the average relative humidity decreases by 11.7%,the temperature at the return air inlet of the working face decreases to about 27.8℃,and the relative humidity decreases to 85.1%.The cooling effect is significant,greatly improving the working environment of the working face.关键词
热害/冷风机组/局部降温/阶梯式供冷Key words
heat damage/cold-air machine unit/local cooling/stepped type cooling supply分类
矿山工程引用本文复制引用
张习军..采煤工作面局部阶梯式供冷降温工艺研究及应用[J].山东煤炭科技,2025,43(1):71-75,81,6.
