中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (9): 150-154.doi: 10.16265/j.cnki.issn1003-3033.2019.09.024

• 安全卫生工程技术 • 上一篇    下一篇

综掘工作面分级除尘系统及其应用

黄宜生, 胡胜勇 副教授, 邵和, 廖奇, 高扬, 胡斐   

  1. 太原理工大学 安全与应急管理工程学院,山西 太原 030024
  • 收稿日期:2019-06-08 修回日期:2019-08-15 出版日期:2019-09-28 发布日期:2020-10-30
  • 作者简介:黄宜生 (1994—),男,河南洛阳人,硕士研究生,主要研究方向为煤矿粉尘防治。E-mail: 1072593806@qq.com。

Research and application of grading dust suppression system on comprehensive heading faces

HUANG Yisheng, HU Shengyong, SHAO He, LIAO Qi, GAO Yang, HU Fei   

  1. Faculty of Safety and Emergency Management Engineering, Taiyuan University of Technology, Taiyuan Shanxi 030024, China
  • Received:2019-06-08 Revised:2019-08-15 Online:2019-09-28 Published:2020-10-30

摘要: 为解决煤矿生产过程中综掘工作面除尘技术存在的不足,减少过量粉尘对工人职业健康造成的威胁,首先分析井下现场除尘现状,得出当前除尘效率低的主要原因为喷嘴易堵塞、尘源覆盖不完全、水雾受工作面风流影响、防尘帘隔尘效果差;其次根据不同区域的产尘特性和粉尘的运移特征,设计出一套分级、分区域的高效除尘系统,该系统由环形包裹抑尘器、气幕隔尘风刀及散射雾幕除尘设备组成,分别控制综掘工作面前、中、后3个区域的粉尘;最后现场应用系统设备测试漳村煤矿26运输巷综掘工作面的除尘效果。结果表明:有人作业区域全尘和呼尘的除尘率均达到95%以上,较现行除尘措施提高约40%,基本实现了工作区域无尘化。

关键词: 煤矿, 综掘工作面, 粉尘浓度, 除尘系统, 喷雾设备, 气幕

Abstract: In order to solve shortcomings of dust removal technology in coal mining production process and reduce threats of excessive dust on workers' occupational health, firstly, analysis was made on current status of underground dust removal, through which it was found that the main reasons for current low dust removal efficiency are nozzles' tendency to be blocked, incomplete dust source coverage, effects of head wind flow on water mist and poor insulation effects of dust curtains. Secondly, based on dust generation characteristics of different areas and dust migration law, a regional grading dedusting system was proposed which consisted of a ring wrapped dust suppressor, an air curtain dust blasting knife and a double atomization device that respectively controlled dust in the front, middle and back regions of a comprehensive face. Finally, system device was applied on comprehensive face of 26 belt lane of Zhangcun Coal Mine to test dust removal effects. The results show that total dust and respirable dust suppression efficiency in working areas both reaches up to 95%, which is about 40% higher than that of current dust removal measures, basically making dust-free working areas possible.

Key words: coal mine, comprehensive heading face, dust mass concentration, dust removal system, dust spray device, air curtain

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