综掘工作面风幕控尘系统及其抑尘性能研究  

Study on air curtain dust control system and its dust suppression performance in fully-mechanized driving face

作　　者：张雪梅 Zhang Xuemei(National Energy Wuhai Energy Information Technology Co.,Ltd.,Wuhai 016040,China)

机构地区：[1]国能乌海能源信息技术有限公司,内蒙古乌海016040

出　　处：《能源与环保》2024年第9期77-83,共7页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：重庆市自然科学基金课题(CSTB2023NSCQ-BSX0013);国家能源集团乌海能源公司科研项目(E130000050)。

摘　　要：将综掘工作面粉尘浓度控制在合理的浓度以及一定的空间范围,事关井下煤矿工人的身体健康与生命安全。控制煤矿掘进工作面生产过程中粉尘的浓度与扩散,一直是煤矿粉尘研究的重要内容之一。为优化综掘面除尘效果,研究粉尘分布规律,以老石旦煤矿16403综掘工作面为研究对象,综合压入式通风及风幕控尘技术,建立综掘工作面风幕控尘系统。根据现场实际数据参数建立压入式通风综掘工作面几何模型,并使用Fluent数值模拟软件对风流场及粉尘场进行模拟,研究了采用风幕控尘措施前后综掘工作面粉尘分布规律。最后,对模拟结果与现场实测结果进行对比,误差控制在合理范围之内。研究结果表明,单一的压入式通风无法有效治理综掘工作面粉尘污染,通过引入风幕控尘系统可以取得较好的防治粉尘效果,综掘工作面巷道粉尘浓度与空间分布范围明显改善,掘进机司机处与巷道两侧人员活动密集位置粉尘浓度保持在合理区间范围。Controlling the concentration of flour dust in fully-mechanized driving face within a reasonable concentration and a certain spatial range is related to the physical health and life safety of underground coal mine workers.Controlling the concentration and diffusion of dust in coal mine fully-mechanized driving face has always been one of the important contents of coal mine dust research.In order to optimize the dust removal effect,the dust distribution law was studied.Taking the No.16403 fully-mechanized driving face of Laoshidan Coal Mine as the research object,a comprehensive forced ventilation and air curtain dust control technology were adopted to establish an air curtain dust control system for the fully-mechanized driving face.According to the actual field data parameters,the geometric model of the forced ventilation fully-mechanized driving face was established,and the Fluent numerical simulation software was used to simulate the air flow field and dust field,and the dust distribution law of the fully-mechanized driving face was studied before and after the air curtain dust control measures were adopted.Finally,the simulation results were compared with the field measured results,and the error was controlled within a reasonable range.The research results show that a single forced ventilation can not effectively control dust pollution in fully-mechanized driving face,through the introduction of air curtain dust control system can achieve effective dust control effect,dust concentration and spatial distribution range of fully-mechanized driving face roadway significantly improved.The dust concentration of the roadheader driver and the positions with intensive personnel activities on both sides of the roadway should be kept within a reasonable range.

关 键 词：综掘工作面 压入式通风 风幕控尘 数值模拟 除尘效果 

分 类 号：TD714[矿业工程—矿井通风与安全]