Design of push-pull system to control diesel particular matter inside a dead-end entry  

作　　者：Yi Zheng Magesh Thiruvengadam Hai Lan Jerry C. Tien 

机构地区：[1]Department of Mining & Nuclear Engineering, MissouriUniversity of Science and Technology, Rolla, MO 65401USA [2]Clean Air Power Inc., Poway, CA 92064, USA [3]Division of Mining and Resources Engineering, Departmentof Civil Engineering, Monash University, Clayton Campus,Wellington Road, Clayton, VIC 3800, Australia

出　　处：《International Journal of Coal Science & Technology》2015年第3期237-244,共8页国际煤炭科学技术学报（英文）

摘　　要：Diesel particulate matter （DPM） is considered to be carcinogenic after prolonged exposure. With more diesel- powered equipment used in underground mines, miners＇ exposure to DPM has become an increasing concern. This paper used computational fluid dynamics method to study the DPM dispersion in a dead-end entry with loading operation. The effects of different push-pull ventilation systems on DPM distribution were evaluated to improve the working conditions for underground miners. The four push-pull systems considered include： long push and short pull tubing; short push and long pull tubing, long push and curved pull tubing, and short push and curved pull tubing. A species transport model with buoyancy effect was used to examine the DPM dispersion pattern with unsteady state analysis. During the 200 s of loading operation, high DPM levels were identified in the face and dead-end entry regions. This study can be used for mining engineer as guidance to design and setup local ventilation, select DPM control strategies and for DPM annual training for underground miners.

关 键 词：Diesel particulate matter Computational fluid dynamics Ventilation Underground condition Push-pullsystem 

分 类 号：TD724[矿业工程—矿井通风与安全] U453.5[建筑科学—桥梁与隧道工程]