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High-fineness tailing sand filling slurry material and preparation method thereof

A technology for filling slurry and body materials, which is applied in the field of high-fine tailings sand filling slurry materials and its preparation, which can solve the problems of high viscosity, difficulty in pumping, low filling slurry strength, and large bleeding, and achieve the effect of avoiding agglomeration

Pending Publication Date: 2020-11-24
山东众森新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention overcomes the deficiencies of the above-mentioned prior art, and provides a high-fine tailings sand filling slurry material and a preparation method thereof, using a functional regulator to solve the utilization problem of the high-fine tailings, and adding a certain Volume function regulator, to solve the problems of low strength of filling slurry, large bleeding volume, high viscosity and difficult to pump, and improve the economic and social environmental benefits of the mine

Method used

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  • High-fineness tailing sand filling slurry material and preparation method thereof
  • High-fineness tailing sand filling slurry material and preparation method thereof

Examples

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Embodiment

[0027] 1. Preparation of filling gel material

[0028] Grind industrial solid waste materials such as nickel slag, manganese slag, slag, fly ash, and desulfurized gypsum to a specific surface area of ​​450+10m2 / Kg, and use it as a filling cementitious material, of which desulfurized gypsum is 5-10%, and fly ash is 5- 10%, smelting slag, nickel slag, manganese slag, ore slag, or any combination of several kinds, the proportion is 80-90%.

[0029] 2. Preparation of functional modulators

[0030] S1 Dissolve 300 kg of isopentyl polyethylene glycol in 350 kg of water, add 5 kg of acrylic acid, 3 kg of hydrogen peroxide, and 0.5 kg of ammonium persulfate, and stir to obtain solution C;

[0031] S2 Take 40kg of acrylic acid and add it to 60kg of water, stir evenly to obtain solution A;

[0032] S3 Take 0.5kg of vitamin C, 0.1kg of potassium sodium citrate, and 1.8kg of mercaptopropionic acid and add them to 100kg of water to obtain solution B;

[0033] S4 dripping the solution A ...

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Abstract

The invention discloses a high-fineness tailing sand filling slurry material and a preparation method thereof. The problem of utilization of high-fineness tailing sand is solved by adopting a functional regulator, and the functional regulator is added into filling slurry with main components of a gel material and the high-fineness tailing sand, so that the problems of low strength, large bleedingamount, large viscosity and difficulty in pumping of the filling slurry are solved, and the economic benefits and social and environmental benefits of mines are improved.

Description

technical field [0001] The invention relates to a high-fine tailings sand filling slurry material and a preparation method thereof, belonging to the field of inorganic chemistry. Background technique [0002] The filling mining method is a mining method in which filling slurry is used to fill goafs, and it has been more and more widely used in iron ore, non-ferrous metal ore, gold mines and other mines. At present, filling technologies such as concrete and rock cemented filling, high-concentration tailings cemented filling, and graded tailings pumping filling have been popularized and applied in many mine goafs. Domestic filling methods mostly use PO42.5 grade cement mixed with graded tailings as filling slurry for filling, in which the particle size of graded tailings > 80um is more than 40%, and the content of mud powder (<5um particles) is <10%. The average particle size is above 60um. However, at present, many mines are pursuing the recovery rate of mineral pr...

Claims

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Application Information

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IPC IPC(8): C04B28/14
CPCC04B28/144C04B2111/00663C04B2201/50C04B18/08C04B18/141C04B18/12C04B24/26C04B22/068C04B22/14C04B24/06C04B24/02C04B24/16
Inventor 郭文倩岳光亮唐樱燕谢瑞兴
Owner 山东众森新材料有限公司