Influence of the strip-shaped air-out slits' width in the fully mechanized working face under wall-attached swirling ventilation condition

被引：2

作者：

Li, Yongjun ^{[3
]}

Wang, Pengfei ^{[1
,2
]}

Liu, Ronghua ^{[1
,3
]}

Han, Han ^{[3
]}

Tan, Xuanhao ^{[3
]}

Jiang, Yidan ^{[3
]}

机构：

[1] Hunan Univ Sci & Technol, Work Safety Key Lab Prevent & Control Gas & Roof, Xiangtan 411201, Hunan, Peoples R China

[2] Hunan Univ Sci & Technol, Hunan Prov Key Lab Coal Resources Clean Utilizat, Xiangtan 411201, Hunan, Peoples R China

[3] Hunan Univ Sci & Technol, Sch Resource Environm & Safety Engn, Xiangtan 411201, Peoples R China

来源：

1ST INTERNATIONAL SYMPOSIUM ON WATER RESOURCE AND ENVIRONMENTAL MANAGEMENT (WREM 2018) | 2019年 / 81卷

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1051/e3sconf/20198101016

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

For the purpose of mastering the influence of the strip-shaped air-out slits' width in the fully mechanized working face under wall-attached swirling ventilation condition, By using fluent software, numerical simulation of airflow field and dust diffusion in fully mechanized working face under different strip-shaped air-out slits' width conditions was carried out. The results show that the wall-attached swirling ventilation can effectively control the dust diffusion in the fully mechanized working face, improve the dust collecting effect of the bag precipitator fan, and reduce the particle mass concentration at the driver and the rear of the tunnel; Increasing the air volume of the strip-shaped air-out slits can improve the control effect of the swirling air curtain on the dust, appropriate air volume can make the swirling air curtain control the dusty airflow and push it to the end of the heading surface to control, block and propel the dust; When the width of the strip-shaped air-out slits is 0.06 m, the dust collecting effect of the exhaust air cylinder on the dust and the effect of the wall-attached swirling on the plugging of the dust are best.

引用

页数：9