High-level roadway communicated drill hole circulating water type mine cooling system and method

Abstract

The invention discloses a high-level roadway communicated drill hole circulating water type mine cooling system. The mine cooling system comprises a heat using unit, wherein a water outlet of the heat using unit is connected with a water inlet of an industrial water chilling unit, the water chilling unit is connected with a water inlet pipeline, the water inlet pipeline enters an air inlet main haulage roadway of a mine, and the water inlet pipeline enters a first high-level roadway along a track uplink / downlink and a connection roadway; a water inlet of the heat using unit is connected with a water return pipeline, the water return pipeline is connected to a total air return roadway of the mine through an air return mine, and the water return pipeline is connected to the next work-plane high-level roadway along an air return uplink / downlink; and a plurality of branched drill holes are uniformly formed between the first high-level roadway and the next work-plane high-level roadway at intervals. The invention further discloses a method for using the mine cooling system. According to the mine cooling system, the bidirectional cyclic utilization of cold water and hot water is realized by virtue of water circulation, the temperature of a recovery work plane can be efficiently decreased, and by virtue of terrestrial heat, energy conservation and emission reduction effects are achieved; by virtue of the branched drill holes, the heat exchange efficiency between cold water and high-temperature surrounding rocks is improved; and the mine cooling system can be further used for extracting gas from pressure released coal seams.

Description

technical field [0001] The invention relates to a cooling method and a cooling system for a mine working face. Background technique [0002] With the increase of mining depth, problems such as high gas and high ground temperature have become more and more prominent. In deep mining, the corresponding increase in gas and ground temperature will lead to continuous deterioration of mining conditions, and the complexity of various disasters and the difficulty of governance will also increase. It is particularly worth noting that the temperature of the working environment caused by the geothermal gradient in deep mining continues to rise, which has become an unavoidable disaster problem in deep mining, which seriously restricts the development of deep mining. [0003] At present, there are three main approaches in domestic and foreign research on mine heat damage control: one is to reduce the heat transfer of high-temperature formation rock mass to wind flow, and the most direct ...

AI Technical Summary

Problems solved by technology

The above various measures have reduced the harm of geothermal disasters to a certain extent, but there are still many shortcomings. Among them, the isolation of heat sources, the increase of ventilation and the cooling of mine air conditioners have greatly increased production investment; the optimization of mine development layout can only be relatively Reduce the harm of heat damage, unable to meet production requirements

In addition, geothermal resources cannot be fully utilized, resulting in waste of resources

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