煤矿综掘面降尘技术研究
杨海鹏
（柳林县应急管理局，山西 柳林 033300）
摘要： 针对煤矿综掘面现有降尘技术存在降尘效率低、成本较高、降尘效果较差、环境污染严重等问题，通过对煤
矿综掘面粉尘特点和传统降尘方法进行分析，对比现有降尘技术的优缺点，提出了一种螺旋式雾化降尘新技术。基于螺
旋式雾化机理搭建了螺旋式雾化喷嘴的物理模型，使用流体动力学仿真软件CFD 对雾化特性进行数值模拟研究，分析了
喷雾压力和不同螺旋角对流场的影响。结果表明：雾化颗粒的轴向速度随着喷雾压力的不断增大而增加；当雾化压力不
变时，液滴的运动速度随喷嘴螺旋角的增大而减小；降尘技术降尘效果良好，大大降低了除尘成本，对于改善综采工作
面环境具有重要的应用价值和意义。
关键词： 煤矿综掘面；降尘技术；螺旋式雾化；CFD 仿真
中图分类号： TD714⁺.4      文献标志码： A      文章编号： 2095-0802-(2023)02-0115-05
Dust Suppression Technology in Fully Mechanized Excavation Face of Coal Mines
YANG Haipeng
(Liulin Emergency Management Bureau, Liulin 033300, Shanxi, China)
Abstract: Aiming at the problems of low dust reduction efficiency, high cost, poor dust reduction effect and serious
environmental pollution in the existing dust reduction technology of fully mechanized excavation face of the coal mine, this paper
analyzed the dust characteristics and traditional dust reduction methods of fully mechanized excavation face of a coal mine, and
compared the existing dust removal technologies. According to the advantages and disadvantages, a new technology of spiral
atomization dust reduction was proposed. Based on the mechanism of spiral atomization, it established the physical model of the
spiral atomizing nozzle, carried out the numerical simulation of the atomization characteristics by using the fluid dynamics
simulation software CFD, and analyzed the effects of spray pressure and different spiral angles on the flow field. The results show
that the axial velocity of the atomized particles increases continuously with the increase of the spray pressure; when the
atomization pressure remains unchanged, the moving velocity of the droplets decreases with the increase of the nozzle helix angle;
the dust reduction effect was good, which greatly reduces the cost of dust removal, and has important application value and
significance for improving the environment of fully mechanized mining face.

Key words: fully mechanized excavation face of coal mine; dust suppression technology; spiral atomization; CFD simulation