Technique for cooling deep mining area by using ground temperature of shallow goaf and waste roadway
A goaf and deep technology, which is used in mine/tunnel ventilation, mining equipment, earth-moving drilling, etc., can solve the problem of pre-cooling air volume, wind resistance adjustment, small heat exchange area between air flow and surrounding rock in the goaf, and air flow adjustment. Difficulties and other problems to achieve the effect of optimizing the management mode of the ventilation system, consolidating the effect of cooling and pre-cooling, and improving the level of ventilation management
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[0026] In order to further describe the present invention, the method for lowering the temperature of the deep mining area by using the ground temperature of the shallow mined-out area and the abandoned roadway of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0027] Depend on figure 1 The schematic diagram of the deep mining area cooling system using the shallow goaf and waste roadway ground temperature to cool the deep mining area with all the air flow precooling of the deep air inlet source is shown. The shallow air intake shaft 1 goes down, and under the negative pressure of the pre-cooling fan 3 in the upper (n-1) shallow gobs and the middle section where the waste roadway 2 is located (the pre-cooling fan is pulled out), the mine All the fresh air flow into the shallow goaf and the abandoned roadway 2 is introduced into the shallow mined-out area and the low-temperature rock mass of the abandoned roa...
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