A heat insulation device for mine roadway and its construction method

Abstract

The invention discloses a heat insulation device for mine roadway and a construction method thereof. The structure of the solid waste heat insulation device includes anchor cables, anchor rods, surrounding rock, solid waste heat insulation templates, concrete layers, roadways, temperature The sensor, the invention utilizes solid waste materials to sinter at high temperature to prepare heat-insulating formwork, the formwork has good heat-insulating performance and supporting function, can reduce solid waste discharge, and reduce the occupied cultivated land area, and 50% of the anchoring pre-tightening force is used in the construction method, It can solve the problem of high preload support failure, heat insulation formwork and surrounding rock separation when the roadway is deformed.

Description

Technical field [0001] The present invention relates to the field of mine cooling techniques, and more particularly to a heat insulating device for mine roadway and its construction method thereof. Background technique [0002] With the rapid development of my country's economy and society, the total amount of large-scale industrial solid waste (for example: alkali slag, Jinhao mine) has increased dramatically. As an example of alkali slag, alkali is the waste residue discharged during the alkaline method. my country's amino base method can reach 4.21 million T / year. Each of the 0.3T pure alkali is produced except for 0.3 t, a factory, an annual output of 800,000 t-pure alkali, a fee for waste residue emissions by about 10 million yuan per year. Under normal circumstances, alkali residue takes a surface-stacked treatment, and a large amount of alkali is deposited, form a "white sea", causing pollution of the surrounding environment. Effective use of alkali slabs, turned waste i...

AI Technical Summary

Problems solved by technology

Miners working in a high-temperature environment for a long time will cause metabolic disorders, lower work efficiency, and even heat stroke. If workers in important positions suffer from heat stroke, it may directly lead to mine accidents.

[0005] (1) Ventilation is often used in traditional mine cooling, but it is difficult to effectively solve the mine roadway temperature. When the air volume is large, it is not cost-effective economically, and the flow of air is easy to bring up dust and pollute the environment.

[0006] (2) When the cooling method is used to cool down, due to the high temperature of the rock and the large amount of heat exchange with the roadway, a lot of energy is wasted, and the cooling effect is not very good due to a large amount of heat loss

[0007] (3) In terms of mine cooling improvement, the current heat insulation method is to directly mix some heat insulation materials into concrete and spray them on the surrounding rock of the roadway, but the heat insulation effect is greatly reduced, and the effect is average.

[0008] (4) At present, industrial alkali slag solid waste is mainly disposed of on the surface, and a large amount of alkali slag will form a "white sea" after deposition and cause pollution to the surrounding environment

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