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Method for filling mine goaf with electrolytic manganese residues

An electrolytic manganese slag and goaf technology is applied in the field of electrolytic manganese slag solid waste treatment, which can solve problems such as environmental pollution, and achieve the effects of reducing environmental pollution, reducing filling costs, and solving control and management problems.

Inactive Publication Date: 2019-03-22
CHINA ENFI ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The raw materials used in this method are low in price, which solves the problem of environmental pollution caused by the accumulation of electrolytic manganese slag, and at the same time solves the problem of the control and management of ground pressure in the goaf of the mine, which is conducive to ensuring safe and efficient mining in the underground of the mine

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  • Method for filling mine goaf with electrolytic manganese residues
  • Method for filling mine goaf with electrolytic manganese residues

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Embodiment Construction

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In one aspect of the present ...

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Abstract

The invention discloses a method for filling a mine goaf with electrolytic manganese residues. The method comprises the following steps: (1) mixing and breaking up the electrolytic manganese residuesand quicklime to obtain a mixture; (2) crushing the mixture primarily to obtain a primarily crushed material; (3) drying the primarily crushed material to obtain ammonia gas and a dried material; (4)secondarily crushing the dried material to obtain a secondarily crushed material; (5) mixing and stirring the secondarily crushed material and a cementing material to obtain a paste filling material;(6) conveying the paste filling material to the mine goaf through filling drilled holes for filling. According to the method, the raw materials are cheap, the problem of environmental pollution causedby stockpiling of the electrolytic manganese residues is solved, the problem about control management of ground pressure in the mine goaf is solved, and safe and efficient mining under a mine well can be guaranteed.

Description

technical field [0001] The invention belongs to the field of electrolytic manganese slag solid waste treatment, in particular, the invention relates to a method for filling goafs of mines by using electrolytic manganese slag. Background technique [0002] Electrolytic manganese slag is the filter cake obtained from manganese carbonate ore in the press filtration process. At present, the discharge of electrolytic manganese slag in China is quite huge, and about 5-6 tons of electrolytic manganese slag will be produced for every 1 ton of electrolytic manganese metal produced. The annual output of electrolytic manganese in China is about 1.5-1.6 million tons, and the accumulated amount of electrolytic manganese slag has exceeded 20 million tons. The electrolytic manganese slag after production has not been properly disposed of. The electrolytic manganese slag occupies a large area and has a great impact on the surrounding environment. In particular, the electrolytic manganese s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B20/02
CPCC04B20/026C04B28/00C04B2111/00724C04B18/144
Inventor 刘育明张爱民吴世剑孙宁磊王霄刘苏宁
Owner CHINA ENFI ENGINEERING CORPORATION
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