A method for preheating mine intake air by utilizing the ground temperature of gobs and abandoned roadways
A technology of gobs and roadways, which is applied in the ventilation of mines/tunnels, mining equipment, mining devices, etc.
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Embodiment 1
[0131] A method for preheating mine intake air by utilizing the ground temperature of goafs and abandoned roadways, comprising counting the effective total preheating area of abandoned roadways and goafs used for preheating, calculating the total amount of preheated air in goafs and abandoned roadways, Design the implementation scheme of the ground temperature preheating system, which is characterized in that:
[0132] Described statistics are used for the waste and old roadway of preheating and goaf effective total preheating area, specifically comprise the following steps:
[0133] The effective total preheating area S of waste roadways and goafs used for preheating in mines 总 is the sum of the effective preheating area S′ of the goaf and the exposed area S″ of the rock wall of the abandoned roadway, that is, S 总 =S'+S", the two parts are counted separately;
[0134] (1) The effective preheating area of the goaf is calculated according to the following formula:
[013...
Embodiment 2
[0243] The method of the present invention is applied in the Huogeqi Copper Mine. The Huogeqi Copper Mine is located at the northern foot of the middle section of the Langshan Mountains in Bayannaoer City, Inner Mongolia Autonomous Region. Coordinates: East longitude 106°39′15″~106°41′15″, north latitude 41°15′57″~41°17′45″. The mining area is 35km away from Saiwusu Town, and 135km away from Linhe City. There are the same roads, among which Linhe to Saiwusu Town is an asphalt road, and Saiwusu Town to the mining area is a cement road, so the transportation is convenient. The mining area belongs to the plateau of Inner Mongolia, the terrain is gentle, the altitude is 1900-2100m, and the general height difference is 30-70m. The mining area and its vicinity are arid areas with an average annual rainfall of 190mm and annual evaporation of 2700mm. There are no rivers or other surface water bodies nearby.
[0244]Huogeqi Copper Mine is a super-large mine mainly made of copper. The ...
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