Comparison analysis on centralized cooling and sectional cooling methods of high temperature coal mining face
Sui Xiuhua
Zeng Xianwei
Huang Yunqian
Wang Fengjiao
Cao Dongdong
Abstract：In order to study the cooling method of the air cooler in the coal mining face affected to the temperature of the coal mining face,based on the energy conservation law and heat transmission principle,the finitc element analysis software and the site experiment method were applied to the study on the centralized cooling and the sectional cooling methods of the coal mining face.The two cooling methods found both could have the temperature cooling function to the coal mining face.In the practices,the average temperature of the coal mining face with the sectional cooling method was 27.5 ℃ and was 0.3 ℃ lower than the average temperature of the coal mining face with the centralized cooling method.With the variance of the calculation,the variance of the coal mining face with the sectional cooling method was 0.079 only and the temperature variance of the coal mining face with the centralized cooling method was 0.585.The results showed that the sectional cooling method could provide much lower and more stable temperature to the coal mining face and ensure a better working temperature environment to the coal mining face.
Keywords：air coolercentralized coolingsectional coolinghigh temperature thermal disaster
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 91-95 )