机掘工作面粉尘扩散规律与气幕控尘技术
Dust Diffusion Laws and Air Curtain Controlling Dust Technology in Tunneling Working Face
-
摘要: 根据机掘工作面风流分布状况、粉尘扩散规律、气幕控尘机理及其影响因素的研究,确定了气幕控尘的控制区域、气幕控尘设备的主要技术参数及布置位置,在此基础上建立机掘工作面模拟降尘系统进行试验,结果显示使用气幕控尘后司机处的降尘效率达80%以上,气幕控尘效率达70%以上。Abstract: According to the study of air flow distribution condition, dust diffusion law, air curtain controlling dust mechanism and the other influencing factors in tunneling working face, the paper determines the control region of air curtain controlling dust, the main technical parameters and arrangement positions of air curtain controlling devices. On this basis, the paper establishes tunneling working face model to simulate dust suppression system and makes experiment. The result show that the dust efficiency at drivers position is more than 80%, and the dust control efficiency of the air curtain is more than 70% after using air curtain controlling dust technology.
-
-
[1] 张设计,刘勇,周润金,等.掘进工作面粉尘分布规律及控降尘工艺技术试验[J].矿业安全与环保,2010,37(2):30-33. [2] G.C.杰姆斯,E.J.布朗宁.抽吸式装置对空气中粉尘的抑制[C]//第4届国际矿山通风会议论文集.北京:中国统配煤矿总公司安全管理部煤炭科技情报所,1989. [3] 郭胜均,吴百剑,张设计,等.气幕控尘技术的应用[J].煤矿安全,2005,36(1):11-13. [4] 郭胜均,李德文,张设计,等.气幕控尘技术理论研究[J].矿业安全与环保,2004,31(6):4-5.
计量
- 文章访问数: 607
- HTML全文浏览量: 0
- PDF下载量: 0