Mine water glass reinforced water shutoff material

Abstract

The invention relates to a mine water glass reinforced water shutoff material which is composed of two independent components, namely component A and component B, wherein the component A comprises following raw materials by weight: 51-99.9% of water glass A, 0-50% of water glass B, 0.1-2% of catalyst C and 0-50% of plasticizer D; and the component B comprises the following raw materials by weight: 51-100% of curing agent A, 0-50% of curing agent B and 0-50% of polyether polyol C. The mine water glass reinforced water shutoff material has the effects of high flame resistance, low reaction heat and adjustable curing time; and environmental water basically does not influence the reaction. By utilizing the mine water glass reinforced water shutoff material, the safety of production of a coal mine can be improved to a great extent.

Description

technical field [0001] The invention belongs to the field of reinforced water blocking materials for mines, and in particular relates to a water blocking material reinforced with mineral water glass. Background technique [0002] Under the action of mine pressure and when encountering geological faults and subsidence columns, the coal mass on the roof of the roadway and working face will scatter, resulting in deformation of the roadway, roof caving, and coal side flakes, which will bring hidden dangers to safe production. [0003] Coal mines encounter the above problems in the production process and usually use flow cement slurry, polyurethane, epoxy and other materials to maintain the roof of the roadway working face, but the above materials bring many problems to safe production in practical application. As described below: [0004] 1. The geological cracks in the coal mine are fine, the cement grouting particle size is large, the diffusion radius is small, the tiny crack...

AI Technical Summary

Problems solved by technology

[0004] 1. The geological cracks in the coal mine are fine, the cement grouting particle size is large, the diffusion radius is small, the tiny cracks cannot be injected, and the curing time cannot be adjusted;

[0005] 2. The underground environment of the coal mine is humid and watery, and polyurethane foams when it encounters water, and its strength decreases;

[0006] 3. Organic (polyurethane, epoxy) grouting materials have high heat of reaction and low flame retardancy, which can easily cause coal mine fires