常村煤矿3#煤层综放工作面注水降尘技术研究_中国煤炭行业知识服务平台

常村煤矿3#煤层综放工作面注水降尘技术研究

Title

Research on Water Injection Dust Reduction Technology for Fully Mechanized Caving Face of the 3# Coal Seam in Changcun Coal Mine
作者

李波
Author

Li Bo
单位

潞安化工集团常村煤矿
Organization

Lu'an Chemical Group Changcun Coal Mine
摘要

常村煤矿3#煤层矿物质含量较高、注水降尘效果较差,通过实验室浸泡试验确定较适宜的表面活性剂种类和溶液浓度,通过数值模拟优化工作面注水工艺参数,以N3-13工作面为例进行工业应用实践。结果表明:浓度为0.20wt%IDS溶液适用于煤层的注水,工作面全尘浓度平均下降幅度为70.37%,呼吸性粉尘浓度平均下降幅度76.16%,工作面粉尘浓度降低明显。
Abstract

The mineral content of the 3# Coal Seam in Changcun Coal Mine is high, and the water injection dust reduction effect is poor. The appropriate type and solution concentration of surfactants are determined through laboratory soak tests. The water injection process parameters of the working face are optimized through numerical simulation, and industrial application practice is carried out by using the N3-13 working face as an example. The results showed that an IDS solution with a concentration of 0.20wt% is suitable for water injection of coal seams. The average decrease of total dust concentration in the working face is 70.37%, and the average decrease of respiratory dust concentration is 76.16%. The dust concentration in the working face decreased significantly.
关键词

矿物质煤层综放工作面煤层注水降尘
KeyWords

mineral coal seam; fully mechanized caving face; coal seam water injection; dust reduction
DOI

10.3969/j.issn.1005-2801.2023.09.044