DOI: 10.11799/ce202504002
Ventilation system optimization with one-intake and two-consumption-point for disaster resistance enhancement in mining face
LI Chao
WU Fengliang
ZHAO Chuangang
WANG Changyou
WANG Tong
Abstract：A new ventilation system was proposed to improve the intake side structure of the coal mining face in response to the poor disaster resistance of the ventilation system in China's coal mining face in dealing with the frictional heat generated by the main conveyor belt and belt fires.The new ventilation scheme takes the belt roadway of the coal mining face as an independent air supply point,forming a"one-intake,two-consumption-point"ventilation system.On this basis,the advantages and disadvantages of the proposed ventilation system were analyzed,and an example was used to illustrate its scope of application and feasibility.The research results show that:① The new ventilation system can not only enhance the fire disaster resistance of coal mining face,but also alleviate the heat damage of high-temperature coal mining face and improve the air quality of coal mining face.②This new ventilation system requires a small amount of engineering,which can be achieved by adjusting the demolition time of relevant ventilation structures and adding a small amount of engineering on the basis of the original"two-intake,one-return"coal mining face ventilation system.③The calculation results indicate that,using this scheme is prominently necessary,when advancing distance of the coal mining face is greater than 2500 m.
Keywords：coal mining faceventilation systembelt fire disastercooling of coal mining faceindependent ventilation
Publication Date：2025-04-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 6-11 )