辽宁工程技术大学学报（自然科学版）2025，Vol.44Issue(5)：520-527,8.DOI:10.11956/j.issn.1008-0562.20240481
综掘工作面粉尘运移特性分析及防治技术优化
Analysis of dust migration characteristics and optimization of prevention and control technology in excavation face
摘要
Abstract
In order to solve the problem of dust pollution in fully mechanized excavation face,theoretical analysis,numerical simulation and on-site monitoring methods were used to explore the characteristics of dust stress,diffusion mechanism and its coupling with airflow field,and an efficient dust control scheme was sought through the optimization experiment of air volume ratio parameters.The results show that the dust control effect is the best when the ratio of radial and axial air distribution of the positive pressure air supply duct is optimized to 8∶2.The average dust mass concentration at the head is reduced from 377.2 mg/m3 to 30.2 mg/m3,the overall dust concentration of the roadway is greatly reduced,and the purification efficiency of the dust removal fan is increased to 74.6%.The field application of this scheme can effectively inhibit the dust diffusion,and the dust concentration at the driver of the roadheader decreases by more than 91%.The research conclusions provide a reference for efficient dust prevention and control.关键词
综掘工作面/粉尘运移规律/风量比例/粉尘防治/数值模拟Key words
excavation face/dust migration law/air volume ratio/dust control/numerical simulation分类
矿业与冶金引用本文复制引用
刘子文..综掘工作面粉尘运移特性分析及防治技术优化[J].辽宁工程技术大学学报（自然科学版）,2025,44(5):520-527,8.基金项目
国家自然科学基金项目(52174229) （52174229）
