Metal ore mining tailings slurry curing agent and its application process

A curing agent and metal ore technology, applied in mining equipment, earth square drilling, filling, etc., can solve environmental pollution, expand the discharge capacity of tailings ponds, etc., to eliminate environmental pollution, strengthen mine environmental protection and disaster emergency response The effect of processing capacity and reducing the difficulty of mining hole backfilling

Inactive Publication Date: 2016-01-13
罗强
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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 solve the above-mentioned defects in the prior art. Aiming at a large amount of tailings slurry produced in the mining of metal minerals, in order to prevent the environmental pollution of tailings slurry, realize the recovery and reuse of tailings liquid, reduce the cost of backfilling in goaf, and reduce the cost of goaf Difficulties in backfilling the area, expanding the discharge capacity of tailings ponds, avoiding landslides and debris flows in tailings ponds, especially comprehensively promoting the sustainable development of the mining industry, the coordinated development of mining activities and the environment, reliably implementing the scientific development concept of mining development, and striving to strengthen mines Environmental protection and disaster emergency treatment capabilities, the present invention proposes a metal ore mining tailings curing agent and its application process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Curing agent raw material ratio: the raw materials include: calcium sulfate, ferrous sulfate, sodium sulfate and magnesium sulfate 2:1:4:3 mixture 15%; magnesium carbonate, potassium carbonate, sodium bicarbonate and ferrous carbonate 14% mixture of 2:3:3:1; 6% mixture of sodium aluminate, magnesium aluminate, ferrous aluminate and potassium aluminate 1:1:3:4; potassium sulfoaluminate, sodium sulfoaluminate, Any one of ferric sulfoaluminate and calcium sulfoaluminate 8%; calcium oxide 15%; silicon oxide 10%; ferrous oxide, ferric oxide, ferric oxide and ferric oxide 4:1:2: 6% mixture of 3; 15% mixture of sodium chloride, potassium chloride, ferric chloride and magnesium chloride 2:3:1:3; sodium hydroxide, calcium hydroxide, ferrous hydroxide and magnesium hydroxide 1:1 : 3:4 mixture 4%.

[0024] Industrialized production process of tailings slurry curing agent:

[0025] Step (1): Purchase various raw materials according to the control requirements of grade and harmful...

Embodiment 2

[0038] Curing agent raw material ratio: the raw materials include: calcium sulfate, ferrous sulfate, sodium sulfate and magnesium sulfate 1:2:2:4 mixture 10%; magnesium carbonate, potassium carbonate, sodium bicarbonate and ferrous carbonate 3:1:3:3 mixture 12%; 7% mixture of sodium aluminate, magnesium aluminate, ferrous aluminate and potassium aluminate 3:1:2:4; potassium sulfoaluminate, sodium sulfoaluminate, Any one of ferric sulfoaluminate and calcium sulfoaluminate 10%; calcium oxide 15%; silicon oxide 15%; ferrous oxide, ferric oxide, ferric oxide and ferric oxide 3:1:2:3 10% mixture of sodium chloride, potassium chloride, ferric chloride and magnesium chloride 3:1:4:2 mixture 20%; sodium hydroxide, calcium hydroxide, ferrous hydroxide and magnesium hydroxide 2:3: 1:4 mixture 8%.

[0039] Industrialized production process of tailings slurry curing agent:

[0040] Step (1): Purchase various raw materials according to the control requirements of grade and harmful ingredie...

Embodiment 3

[0056] Curing agent raw material ratio: its raw materials include: calcium sulfate, ferrous sulfate, sodium sulfate and magnesium sulfate 4:2:2:2 mixture 13%; magnesium carbonate, potassium carbonate, sodium bicarbonate and ferrous carbonate 9% mixture of 2:1:3:4; 8% mixture of sodium aluminate, magnesium aluminate, ferrous aluminate and potassium aluminate 4:1:2:3; potassium sulfoaluminate, sodium sulfoaluminate, Any one of iron sulfoaluminate and calcium sulfoaluminate 5%; calcium oxide 15%; silicon oxide 12%; ferrous oxide, iron oxide, ferric oxide and ferric oxide 2:3:2:2 8% mixture; 5% mixture of sodium chloride, potassium chloride, ferric chloride and magnesium chloride 2:1:2:4; sodium hydroxide, calcium hydroxide, ferrous hydroxide and magnesium hydroxide 2:4:2 : 2 mixture 6%.

[0057] Industrialized production process of tailings slurry curing agent:

[0058] Step (1): Purchase various raw materials according to the control requirements of grade and harmful ingredien...

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PUM

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Abstract

The invention provides a metal mineral product exploitation tailing slurry curing agent and its application technology. The curing agent is prepared by stirring a mixture composed of steel slag micro-powder or grain slag powder and auxiliary materials under a rotating speed of above 400rpm for 7-10min; the mixture comprises 10-15% of sulfate, 9-14% of carbonate, 6-8% of aluminate, 5-10% of sulfoaluminate, 6-10% of ferriferous oxide, 5-20% of chloride, 4-8% of hydroxide, 15% of calcium oxide and 15% of silicon oxide; the steel slag micro-powder or grain slag powder is steel slag micro-powder or grain slag powder generated in the iron making or smelting process of iron ore; and the fineness of each of the above various raw materials is above 450 meshes.

Description

technical field [0001] The invention belongs to the field of mining engineering, and in particular relates to a metal ore mining tailings curing agent and an application process thereof. technical background [0002] All countries in the world mine a large amount of various metal minerals every year, including two categories of non-ferrous metal minerals and ferrous metal minerals (ie iron ore), especially in my country. However, a large amount of tailings slurry harmful to the environment will be produced in the mining of metal minerals (the concentration is generally 55%-70%, and a few are below 55% or above 70%). For example: Gushan Mining Company of Maanshan Iron and Steel Group Co., Ltd. and Mushan Iron Mine mine 1.1 million tons of iron ore (large-scale mines) annually and produce 600,000 tons of tailings slurry. For a long time, in the mining of metal minerals at home and abroad, whether it is underground mining or open-pit mining, a large amount of tailings slurry p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/08E21F15/06
Inventor 凌贤长唐亮
Owner 罗强
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