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2014 Issue 10

Optimization on Air Velocity for Ventilation and Dust Control of Fully-Mechanized Coal Mining Face Based on Numerical Simulation

Author:

JIANG Zhong-an ZHANG Zhong-yi TAN Cong LUO Jun-feng YAN Peng

Author Unit:

School of Civil and Environment Engineering, University of Science and Technology Bejing

Key Words:

fully-mechanized coal mining face; dust mass concentration; air velocity optimization; optimum air velocity;
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In order to solve the high dust mass concentration problem of the fully- mechanized coal mining face in coal mine, taking No.2225 fully- mechanized coal mining face of Xingdong Mine as a study object, based on the mathematics model, a fully- mechanized coal mining face was established. The FLUENT software was ap plied to the numerical simulation to analyze the air velocity affected to the dust migration law of the fully- mechanized coal mining face. The study results showed that in a certain air velocity scope, with the air velocity increased, the average dust mass concentration of the fully- mechanized coal mining face would steadily reduced. But t he air velocity too high would also cause a negative influence to the working environment and condition. Therefore, an air velocity of 2 m /s at the air inlet was determin ed as the optimized air velocity and under the condition of working environment not influenced, the dust mass concentration would be minimum.
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No.06
June 15th,2022

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