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A method for manufacturing a sealing material for gas drainage holes

A technology of sealing material and gas drainage, applied in the field of mining material utilization, can solve the problems of high cost, failure of sealing operation, failure of sealing material, etc., and achieve good sealing effect.

Inactive Publication Date: 2015-08-12
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If Portland cement is used to seal the hole, the sealing operation will fail due to the shrinkage of Portland cement when it is consolidated; The sealing material fails; if chemical slurry is used to seal the hole, on the one hand, the cost is too high;

Method used

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  • A method for manufacturing a sealing material for gas drainage holes
  • A method for manufacturing a sealing material for gas drainage holes
  • A method for manufacturing a sealing material for gas drainage holes

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Embodiment Construction

[0015] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below.

[0016] This specific embodiment adopts following technical scheme to realize, and it is made up of sulfur construction gypsum, fly ash, lime, bentonite and metakaolin, and its composition scope is:

[0017]

[0018] The manufacturing method of the sealing material is:

[0019] 1. Process sulfur building gypsum, fly ash, lime, bentonite and metakaolin into powders with a fineness of not less than 200 mesh;

[0020] 2. Mix the processed sulfur building gypsum, fly ash, lime, bentonite and metakaolin according to the proportion to get the product.

[0021] When in use, just mix water and the sealing material at a ratio of 0.5:1 and then use it.

[0022] Due to the adoption of the above technical scheme, the present invention ...

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Abstract

The invention discloses hole sealing material for a gas drainage hole, which comprises sulfur building plaster, coal ash, lime, bentonite and metakaolin. As desulfurization building plaster is formed by calcining desulphurization plaster, the desulfurization building plaster generates a large amount of ettringite with the coal ash, the line and the metakaolin when water is added, and net structures are formed, so that slurry is quickly hardened, and the strength is generated; and the bentonite which is formed by dropping volcanic ash in water is a natural nanometer material, and is filled in the net structures, so as to achieve excellent sealing effect.

Description

technical field [0001] The invention relates to the technical field of mining material utilization, in particular to a method for making a sealing material for gas drainage holes. Background technique [0002] Gas is the biggest technical problem encountered in mining activities. The gas drainage hole is an effective method to solve the gas problem, but the sealing problem of the gas drainage hole has always been a difficult problem. If Portland cement is used to seal the hole, the sealing operation will fail due to the shrinkage of Portland cement when it is consolidated; The sealing material fails; if chemical slurry is used to seal the hole, on the one hand, the cost is too high; Contents of the invention [0003] The object of the present invention is to provide a method for making a sealing material for gas drainage holes, which can effectively solve the problems in the background technology. [0004] The sealing material is composed of sulfur building gypsum, fly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14
Inventor 符勇熊祖强
Owner HENAN POLYTECHNIC UNIV
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