煤矿安全2024，Vol.55Issue(7)：59-67,9.DOI:10.13347/j.cnki.mkaq.20231439
基于新型分风控尘方法的综掘工作面控尘机制研究
Research on dust control mechanism of fully-mechanized mining face based on a new air distribution dust control method
摘要
Abstract
In order to improve the problem of serious dust pollution in the fully-mechanized mining face,a new air distribution dust control method with air separator installed was proposed for the fully-mechanized mining face of Daliuta Coal Mine in Yulin,Shaanxi Province.Fluent was used to simulate the dust diffusion rule of the new-type air distribution dust control method,and the in-fluences of different distances between the air pressure outlet and the working face and different pressure-pumping ratios on the change of dust diffusion rule were analyzed.When the air pressure outlet is 10-20 m away from the working face,dust accumulates and settles in the bottom of the roadway in the working face area,and the dust concentration is low at the driver's side,and the dust control effect is better.When the distance between the air pressure outlet and the working face is 10 m and the pressure-pumping ra-tio is 1.0,the high concentration of dust accumulates in the working face area,and the dust concentration at the driver is controlled below 50 mg/m3,and the dust control effect is better.Through field measurement,the error between dust concentration and simula-tion results is less than 15.2%.关键词
粉尘污染/综掘工作面/分风器/压抽比/控尘方法Key words
dust pollution/fully-mechanized mining face/air separator/pressure-pumping ratio/dust control mechanism分类
矿业与冶金引用本文复制引用
韩文杰,张虎,石磊,秦娜..基于新型分风控尘方法的综掘工作面控尘机制研究[J].煤矿安全,2024,55(7):59-67,9.基金项目
国家自然科学基金重点资助项目(51934004) （51934004）
