Gas-proof plugging coating for coal mine tunnel

A coal mine roadway and anti-gas technology, which is applied in the direction of fireproof coatings, conductive coatings, alkali metal silicate coatings, etc., can solve the problems of poor fire resistance, poor air tightness, easy cracks, etc., and achieve good construction performance, Not easy to fall off, good bonding strength effect

Active Publication Date: 2021-09-21
石家庄雅致化工有限公司
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  • Abstract
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Problems solved by technology

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an anti-gas sealing coating for coal mine roadways,

Method used

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  • Gas-proof plugging coating for coal mine tunnel

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[0040] Example 1

[0041] Roadway one kind of gas present invention anti-blocking coating material, comprising: 20 parts by mass of potassium silicate, 2 parts by mass of sodium silicate, 0.4 parts by mass of silicon phosphate, 15 parts by mass of quartz powder, 15 parts by mass of decarbonization of fly ash, 15 parts by weight of wollastonite, 5 parts by mass of needle-like wollastonite, 1.5 parts by mass of carbon fiber, 6 parts by mass of water. The liquid potassium silicate is potassium silicate, modulus of 28; a liquid sodium silicate, modulus of 2.5. Quartz powder 200 mesh, 300 mesh carbon fiber.

[0042] Preparation of the anti-gas coal mine tunnel plugging coatings are:

[0043] S1: The silicon phosphate adding water dispersible formulation;

[0044]S2: Mix the potassium silicate and sodium silicate, dispersion of 6 min under stirring rotational speed of 400r / min, in the dispersion process, in proportion to quartz powder, de-carbona gray ash, silica grayite, needle-shaped

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Abstract

The invention relates to a gas-proof plugging coating for a coal mine tunnel. The gas-proof plugging coating comprises the components in parts by mass: 15 to 20 parts of potassium silicate, 1 to 3 parts of sodium silicate, 0.1 to 0.9 part of silicon phosphate, 15 to 20 parts of quartz powder, 15 to 20 parts of decarburized fly ash, 15 to 20 parts of wollastonite, 5 to 10 parts of needle-like wollastonite, 1 to 1.5 parts of carbon fibers, and 4.5 to 20 parts by mass of water, wherein the potassium silicate is liquid potassium silicate, and the sodium silicate is liquid sodium silicate. All the components of the plugging coating are inorganic materials, and the plugging coating has the characteristics of no pollution or low pollution, fire resistance, flame retardance and the like. Meanwhile, the coating disclosed by the invention is quick to dry (the coating can be dried to form a film within 20-60 minutes) and is not easy to crack after being blocked, a repaired part has relatively high tensile strength, good construction performance and anti-static property, and a repaired coating layer and a repaired interface have good bonding strength and are stable in heating and not easy to fall off.

Description

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Claims

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Application Information

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Owner 石家庄雅致化工有限公司
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