Numerical Simulation of Distribution Regularities of Dust Concentration in Fully Mechanized Top-Coal Caving Face

Author

Niu Wei ; Jiang Zhong´an

Author_Institution

Civil & Environ. Eng. Sch., Univ. of Sci. & Technol. Beijing, Beijing, China

fYear

2010

fDate

18-20 June 2010

Firstpage

1

Lastpage

4

Abstract

According to characteristics of fully mechanized top-coal caving face and related survey date, a mathematical model of dust movement was derived from gas-solid two-phase flow theory. Numerical simulation of the dust concentration was made with CFD software FLUENT. The result matches well with the related survey date and shows that most of the dust move with the wind and little disperses at random. Coal cutting is the most important source of dust. Advancing support and top-coal drawing is of the second and third importance. Dust control in fully mechanized top-coal caving face should focus on the place downwind the coal mining machine between 5 and 10 m.

Keywords

computational fluid dynamics; disperse systems; dust; mining; mining equipment; numerical analysis; two-phase flow; CFD; FLUENT; coal cutting; coal mining machine; disperse system; dust concentration distribution; dust control; dust movement; gas-solid two-phase flow theory; numerical simulation; top-coal caving face; top-coal drawing; Analytical models; Boundary conditions; Computational fluid dynamics; Data analysis; Ducts; Health and safety; Mathematical model; Numerical simulation; Power cables; Solid modeling;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on

Conference_Location

Chengdu

ISSN

2151-7614

Print_ISBN

978-1-4244-4712-1

Electronic_ISBN

2151-7614

Type

conf

DOI

10.1109/ICBBE.2010.5516021

Filename

5516021