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Cavity material made of mine tailing

A mine tailings and cavity technology, applied in the cavity field, can solve the problems of inability to realize the comprehensive utilization of mine tailings, poor wear resistance and fracture resistance of the cavity, poor high temperature resistance of the cavity, etc., and achieve energy saving and environmental protection effects Significant, not easy to pollute, improve the effect of thermal insulation performance

Inactive Publication Date: 2019-06-28
广东中人工程集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cavity material for mine tailings manufacturing to solve the problem that the cavity in the prior art proposed in the above background technology does not contain tailings components, and the comprehensive utilization of mine tailings cannot be realized, which is easy to cause Environmental pollution, energy saving and environmental protection are poor. At the same time, the traditional cavity has poor wear resistance and fracture resistance, and the service life is low. Moreover, the high temperature resistance of the cavity is poor, and it is prone to thermal expansion. At the same time, the traditional cavity does not With foaming agent, its heat preservation and heat insulation performance is poor

Method used

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  • Cavity material made of mine tailing
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A cavity material made of mine tailings. The cavity material is divided into: 50% of tailings, 15% of quicklime, 5% of cement, 1% of phosphogypsum, 1% of nano-diamond powder, 5% of zirconium silicate, Water 60%, additive 0.1%;

[0026] The additives are divided into: 0.03% foaming agent, 0.02% stabilizer, 0.01% slow release agent and 0.01% water reducing agent according to weight percentage.

[0027] Further, the tailings contain the following components by weight: 40% of quartz, 9% of magnesium oxide, 3% of clay, 15% of calcite, 1% of feldspar, 3% of dolomite, 5% of kaolinite, 5% feldspar granite, 0.8% barite, 0.3% fluorite.

[0028] Further, the kaolinite may also be any one of pyrophyllite or talc.

[0029] Further, kaolinite may also be a mixture of kaolinite and pyrophyllite or talc.

[0030] Further, chalcedony may also be selected as quartz, preferably quartz.

[0031] Further, the quartz can also be a mixture of quartz and chalcedony.

[0032] Furthermore, ...

Embodiment 2

[0036] A cavity material made of mine tailings. The cavity material is divided into: 52% of tailings, 18% of quicklime, 7% of cement, 3% of phosphogypsum, 2% of nano-diamond powder, 7% of zirconium silicate, Water 68%, additive 0.2%;

[0037] The additives are divided into: 0.05% foaming agent, 0.03% stabilizer, 0.02% slow release agent and 0.015% water reducing agent according to weight percentage.

[0038] Further, the tailings contain the following components by weight: 50% of quartz, 10% of magnesium oxide, 4% of clay, 17% of calcite, 2% of feldspar, 4% of dolomite, 8% of kaolinite, 7% feldspar granite, 1% barite, 0.4% fluorite.

[0039] Further, the kaolinite may also be any one of pyrophyllite or talc.

[0040] Further, kaolinite may also be a mixture of kaolinite and pyrophyllite or talc.

[0041] Further, chalcedony may also be selected as quartz, preferably quartz.

[0042] Further, the quartz can also be a mixture of quartz and chalcedony.

[0043] Furthermore, ...

Embodiment 3

[0047] A cavity material made of mine tailings. The cavity material is divided into: 55% of tailings, 19% of quicklime, 10% of cement, 5% of phosphogypsum, 3% of nano-diamond powder, 9% of zirconium silicate, Water 65%, additive 0.3%;

[0048] The additives are divided into: 0.06% foaming agent, 0.05% stabilizer, 0.03% slow release agent and 0.02% water reducing agent according to weight percentage.

[0049] Further, the tailings contain the following components by weight: 58% of quartz, 10% of magnesium oxide, 5% of clay, 20% of calcite, 3% of feldspar, 5% of dolomite, 10% of kaolinite, 10% feldspar granite, 1.3% barite, 0.8% fluorite.

[0050] Further, the kaolinite may also be any one of pyrophyllite or talc.

[0051] Further, kaolinite may also be a mixture of kaolinite and pyrophyllite or talc.

[0052] Further, chalcedony may also be selected as quartz, preferably quartz.

[0053] Further, the quartz can also be a mixture of quartz and chalcedony.

[0054]Furthermor...

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Abstract

The invention discloses a cavity material made of mine tailing, and relates to the technical field of cavities. The cavity material is prepared from, by weight, 50-55% of tailing, 15-20% of quicklime,5-10% of cement, 1-5% of phosphogypsum, 1-3% of nano-diamond powder, 5-10% of zirconium silicate, 60-65% of water and 0.1-0.3% of additives; the cavity adopts the mine tailing as the main ingredient,the accumulated mine tailing is comprehensively utilized, the pollution problem caused by accumulation of the tailing on the environment is solved, and meanwhile full utilization of the mine tailingis achieved, the dosage of cement is lowered, the production cost is reduced, and the energy conservation and environmental protection effects are significant, and the obvious economical efficiency isachieved; by means of the nano-diamond powder added in the cavity material, the wear resistance and fracture resistance of nano-diamond can be utilized, the wear resistance, hardness and fracture toughness of the cavity are effectively improved, the service life of the cavity is prolonged, and by means of zirconium silicate, the cavity has the advantages of being high in high temperature resistance and free of expansion at high temperature.

Description

technical field [0001] The invention relates to the field of cavity technology, in particular to a cavity material produced from mine tailings. Background technique [0002] With the development of the economy, the demand for mineral products has increased significantly, and the scale of mining development has increased accordingly. The number of beneficiation tailings produced will continue to increase. Demand, the scale of mineral processing is getting larger and larger, so the number of mineral processing tailings will also increase significantly, and a large number of stockpiled tailings have caused many problems for the mining industry, the environment and the economy. At present, the treatment methods for tailings are generally It is used as the filling material of the goaf in the underground mining of the mine, that is, the water-sand filling material or the aggregate of the cemented filling; or some are directly covered with soil on the tailings dump to make fields, ...

Claims

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Application Information

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IPC IPC(8): C04B28/10C04B38/02C04B24/00B29C45/26B29C33/38C04B103/42C04B18/12
CPCY02W30/91
Inventor 张北龙王龙辉邓立成骆雄晏
Owner 广东中人工程集团有限公司
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