Method for preheating mine inlet air through gob and waste roadway earth temperature

A goaf and roadway technology, which is used in mine/tunnel ventilation, mining installations, mining equipment, etc.

Active Publication Date: 2018-10-19
BAYANNAOER WESTERN COPPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preheating the air intake of the mine by using the ground temperature of the goaf and the abandoned roadway. Improve the deep ventilati

Method used

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  • Method for preheating mine inlet air through gob and waste roadway earth temperature
  • Method for preheating mine inlet air through gob and waste roadway earth temperature
  • Method for preheating mine inlet air through gob and waste roadway earth temperature

Examples

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Effect test

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

[0244] 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 them, the asphalt road is from Linhe to Saiwusu Town, and the cement road is from Saiwusu Town to the mining area. 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.

[0245]Huogeqi Copper Mine is a super-large mine mainly made of cop...

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Abstract

The invention discloses a method for preheating mine inlet air through gob and waste roadway earth temperature. The method includes the steps that the total effective preheating area of a waste roadway and a gob which are used for preheating is counted, the total amount of air needing to be preheated by the gob and the waste roadway is calculated, and an earth temperature preheating system implementation scheme is designed; the earth temperature preheating system implementation scheme comprises selection of an earth temperature preheating system ventilating line and an earth temperature preheating system ventilator, regulation and control over air amount of an earth temperature preheating system and effect evaluation of the earth temperature preheating system. Mine natural resources are sufficiently utilized, and therefore system energy consumption is lowered. By adjusting an air inlet line of a deep gob and using earth temperature of the shallow part gob and the waste roadway for naturally increasing the temperature of a low-temperature air inlet source conveyed to the deep gob, loads of heat generating equipment and heating equipment in a mine air conditioning temperature increase technology are reduced greatly, and ventilating energy consumption and heat energy consumption are lowered.

Description

technical field [0001] The invention relates to the technical field of ventilation and heating in underground mines, which is suitable for ventilation and heating of mines in northern winter severe cold regions, and specifically refers to a method for preheating mine air intake in mining areas by utilizing the ground temperature of goafs and abandoned roadways. Background technique [0002] The northern region is very cold in winter, if the cold surface air directly enters the mine without preheating, it will inevitably lead to freezing of the air intake shaft, which is unfavorable to lifting, transportation, safety production and other aspects. The way of boiler preheating or electric preheating consumes a lot of energy, capital and manpower every year. Ground temperature preheating is a technical measure to use the temperature adjustment effect of the stratum to heat the wind flow into the mine. [0003] The principle of ground temperature preheating is that as the mining...

Claims

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Application Information

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IPC IPC(8): E21F1/00E21F17/00G06F17/50
CPCE21F1/00E21F17/00G06F30/20
Inventor 邸冬蔡曙光余龙王伟
Owner BAYANNAOER WESTERN COPPER
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