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Glue filling material for synergically curing antimony and preparation method thereof

A filling and cementing technology, applied in the field of environmental science, can solve the problems of large footprint, high cost, and large capacity expansion ratio for subsequent safe landfills, and achieve the effects of reducing leaching toxicity, high cost, and leaching concentration.

Inactive Publication Date: 2017-08-04
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solidification / stabilization technology in the existing technology faces the problems of high cost, large capacity increase ratio, and large landfill area for subsequent safe landfills

Method used

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  • Glue filling material for synergically curing antimony and preparation method thereof
  • Glue filling material for synergically curing antimony and preparation method thereof
  • Glue filling material for synergically curing antimony and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A cementing agent for mines, prepared from the following raw materials in weight percent:

[0042] Steel slag 60%

[0043] Slag 30%

[0044] Desulfurized gypsum 10%

[0045] A method for preparing cemented filling material for co-processing antimony-containing solid waste, steel slag and desulfurized gypsum, characterized in that: mixing the ground steel slag, slag and desulfurized gypsum to prepare cementitious material and antimony-containing solid waste, Aggregate and water reducing agent, add water and mix evenly, the specific steps are as follows:

[0046] (1) Mix and grind steel slag, desulfurized gypsum, and slag as raw materials with a moisture content of 0.01% to 1% at 60%, 30%, and 10% on a dry basis to a specific surface area of ​​480m 2 / Kg mixing makes cementing agent;

[0047] (2) The disposed antimony-containing solid waste is lead-zinc ore tailings. The weight ratio of cement / aggregate is 1 / 3, and the mass fraction of slurry is 80%. The qualified cem...

Embodiment 2

[0060] A cementing agent for mines, prepared from the following raw materials in weight percent:

[0061] Steel slag 70%

[0062] Slag 20%

[0063] Desulfurized gypsum 10%

[0064] A method for preparing cemented filling material for co-processing antimony-containing solid waste, steel slag and desulfurized gypsum, characterized in that: mixing the ground steel slag, slag and desulfurized gypsum to prepare cementitious material and antimony-containing solid waste, Aggregate and water reducing agent, add water and mix evenly, the specific steps are as follows:

[0065] (1) Mix and grind steel slag, desulfurized gypsum, and slag as raw materials with a moisture content of 0.01% to 1% at 70%, 20%, and 10% on a dry basis to a specific surface area of ​​450m 2 / Kg mixing makes cementing agent;

[0066] (2) The disposed antimony-containing solid waste is lead-zinc ore tailings. The weight ratio of cement / aggregate is 1 / 3, the mass fraction of slurry is 75%, and the qualified cem...

Embodiment 3

[0080] A cementing agent for mines, prepared from the following raw materials in weight percent:

[0081] Steel slag 65%

[0082] Slag 25%

[0083] Desulfurized gypsum 10%

[0084] A method for preparing cemented filling material for co-processing antimony-containing solid waste, steel slag and desulfurized gypsum, characterized in that: mixing the ground steel slag, slag and desulfurized gypsum to prepare cementitious material and antimony-containing solid waste, Aggregate and water reducing agent, add water and mix evenly, the specific steps are as follows:

[0085] (1) Mix and grind steel slag, desulfurized gypsum, and slag as required raw materials with a moisture content of 0.01% to 1% at 65%, 25%, and 10% on a dry basis to a specific surface area of ​​460m 2 / Kg mixing makes cementing agent;

[0086] (2) The disposed antimony-containing solid waste is lead-zinc ore tailings, and the weight ratio of cement / aggregate is 1 / 4, and the weight ratio of antimony-containing ...

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Abstract

The invention relates to a glue filling material for synergically curing antimony and a preparation method thereof and belongs to the field of environmental protection of mine cemented filling, solid waste resource utilization and synergic treatment for antimony-containing solid wastes. The preparation method comprises the following steps: separately milling or mixing and milling the required raw materials in moisture content from 0.01% to 1%, including 45%-80% of steel slag, 5%-20% of flue gas desulfurization gypsum and 10%-40% of mineral waste residue on the basis of weight percent of dry basis, till the specific surface area is 200-600m2 / Kg, and uniformly mixing, thereby acquiring a cementing agent; drying the antimony-containing solid wastes till the moisture content is from 0.01% to 1% and milling till the specific surface area is 100-1000m<2> / Kg; adding 0%-1% of water reducer on the basis of the weight ratio of cementing agent to aggregate at 1 / 8-1 / 2 and the weight ratio of antimony-containing solid wastes to (cementing agent and aggregate) at 1 / 100-1 / 2, wherein the mass fraction of slurry is 65%-82%; uniformly stirring, thereby acquiring a qualified mineral glue filling material. The preparation method provided by the invention has the advantages of simple and easy operation, low energy consumption, low cost, no new solid waste generation, less pollution to environment and environmental protection.

Description

technical field [0001] The invention relates to the field of environmental science and technology of mine cementation filling, resource utilization of solid waste and co-processing of antimony-containing solid waste, in particular to a cemented filling material for co-processing of antimony-containing solid waste, steel slag and desulfurized gypsum and a preparation method thereof. Background technique [0002] The current industrial system is actually a process of mining resources and discharging waste. Mining activities are the main source of waste discharge to the environment, and its solid waste discharge accounts for 80% to 85% of industrial waste discharge. Mine mining left a large area of ​​mined-out area, stacked waste rocks, waste slag yards and constructed tailings dams, which brought serious safety hazards and environmental loads. [0003] The filling mining method belongs to the artificial support mining method. In the mine room or ore block, as the mining face...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14
CPCC04B28/144C04B2111/00017C04B2111/00025C04B2111/00724C04B2201/50C04B18/142C04B18/141C04B18/12C04B14/02C04B2103/302
Inventor 倪文高巍李云云王珂鄢琪慧张钰莹
Owner UNIV OF SCI & TECH BEIJING
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