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Industrial solid waste-based inorganic paste filling material, preparation method and rapid filling method

A technology for filling industrial solid waste and paste, which is applied to filling materials, mining equipment, earth square drilling and mining, etc. It can solve the problems of high filling cost and difficult filling, expand the scope of application, improve filling efficiency, and improve early strength Effect with Final Strength

Pending Publication Date: 2021-06-04
河北充填采矿技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an industrial solid waste-based inorganic paste filling material, which aims to solve the problems of high filling cost and difficult filling existing in underground goaf filling in the prior art;

Method used

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  • Industrial solid waste-based inorganic paste filling material, preparation method and rapid filling method
  • Industrial solid waste-based inorganic paste filling material, preparation method and rapid filling method
  • Industrial solid waste-based inorganic paste filling material, preparation method and rapid filling method

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Effect test

Embodiment 1

[0041] Example 1 A preparation method and rapid filling method of an industrial solid waste-based inorganic paste filling material

[0042] A preparation method and rapid filling method of an industrial solid waste-based inorganic paste filling material, part of the process flow chart can be found in figure 1 ,details as follows:

[0043] 1) Preparation method of industrial solid waste-based inorganic paste filling material

[0044] 1) Preparation of solid waste filling cementing material

[0045] 11) Take the desulfurized gypsum with a moisture content of 12wt%, dry it until the moisture content is 8wt%, and then use a belt conveyor to transport it to the mill for rough grinding, then heat and dry it with circulating hot air until the moisture content is 2.8wt%, and then Continuously calcined at 180°C for 1 hour, and finally pulverized by a pulverizer to obtain a modified industrial by-product gypsum, and its 80 μm negative pressure sieve residue <2%;

[0046] Get 0.15kg pol...

Embodiment 2

[0061] Embodiment 2 A kind of preparation method of industrial solid waste-based inorganic paste filling material

[0062] 1) Preparation method of industrial solid waste-based inorganic paste filling material

[0063] 1) Preparation of solid waste filling cementing material

[0064] 11) Take fluorogypsum with a moisture content of 12.8wt%, dry it until the moisture content is 7.5wt%, and then use a belt conveyor to transport it to the mill for rough grinding, then heat and dry it with circulating hot air until the moisture content is 2.7wt% , and then continuously calcined at 200°C for 1.1h, and finally pulverized by a pulverizer to obtain a modified industrial by-product gypsum, and the 80μm negative pressure sieve residue <2%;

[0065] Get 0.3kg polycarboxylic acid (high-efficiency water reducer, powder), 0.1kg sodium silicate (powder), 0.1kg melamine (powder) and mix uniformly through a mixer to prepare an admixture, wherein polycarboxylic acid, The ratio of sodium silic...

Embodiment 3

[0080] Embodiment 3 A kind of preparation method of industrial solid waste-based inorganic paste filling material

[0081] 1) Preparation method of industrial solid waste-based inorganic paste filling material

[0082] 1) Preparation of solid waste filling cementing material

[0083] 11) Take phosphogypsum with a moisture content of 12.1wt%, dry it until the moisture content is 7.7wt%, and then use a belt conveyor to transport it to the mill for rough grinding, then heat and dry it with circulating hot air until the moisture content is 2.9wt% , and then continuously calcined at 190°C for 1.5h, and finally pulverized by a pulverizer to obtain a modified industrial by-product gypsum, and the 80μm negative pressure sieve residue <2%;

[0084] Get 0.2kg polycarboxylic acid (superplasticizer, powder), 0.05kg sodium silicate (powder), 0.05kg melamine (powder) and mix them uniformly through a mixer to prepare an admixture, wherein polycarboxylic acid, The ratio of sodium silicate t...

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Abstract

The invention provides an industrial solid waste-based inorganic paste filling material, a preparation method and a rapid filling method, and belongs to the technical field of mine filling. The industrial solid waste-based inorganic paste filling material provided by the invention is prepared by mixing coarse aggregate, fine aggregate and a solid waste filling cementing material. The rapid filling method comprises the steps that the industrial solid waste-based inorganic paste filling material is taken and conveyed to the underground through a ground feeding hole, then the industrial solid waste-based inorganic paste filling material is evenly mixed with mine water, and the goaf is filled with the obtained paste filling slurry. The industrial solid waste-based inorganic paste filling material does not need underground weighing and can be directly added with water for use, and compared with an existing paste filling process, and the difficulty of underground classified conveying of various solid materials is reduced; meanwhile, the space occupancy rate of underground equipment and a weighing system is also reduced, the underground working intensity is reduced and the safety coefficient and the working efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of mine filling, and more specifically relates to an industrial solid waste-based inorganic paste filling material, a preparation method and a rapid filling method. Background technique [0002] With the continuous reduction of underground high-quality resources, "three down" resource mining has gradually become an important means for major mining companies to extend the service life of mines. The development and innovation of filling coal mining technology has gradually become an important technical means to promote the development of the mining industry and protect the ecological environment. Therefore, the development and application of filling technology has gradually become a key technology in the general trend of the mining industry. After years of development, the paste filling mining technology has gradually been widely recognized and applied. At the same time, many technical difficulties and techni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/08C04B7/21C04B7/19C04B7/153C04B7/36C04B24/24E21F15/00E21F15/08
CPCC04B28/08C04B7/21C04B7/19C04B7/1535C04B7/36C04B40/0039E21F15/00E21F15/005E21F15/08C04B2111/00724C04B18/12C04B18/08C04B18/10C04B18/16C04B14/361C04B24/24C04B12/04C04B24/128Y02P40/10
Inventor 贾靖卢志敏秦大健王学伟郝永超董小娟王英
Owner 河北充填采矿技术有限公司
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