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Porous insulating decorative material prepared by utilizing iron tailings and preparation method thereof

A technology of decorative materials and iron tailings, applied in the field of porous thermal insulation decorative materials and its preparation, can solve the problems of aging, falling off, cracking and other problems of organic thermal insulation materials, and achieve the effects of avoiding cracking, uniform heating, and simplifying the preparation process

Inactive Publication Date: 2013-10-09
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And with the prolongation of use time, organic thermal insulation materials are also facing the problem of aging, which is prone to large-scale cracking, falling off and swelling.

Method used

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  • Porous insulating decorative material prepared by utilizing iron tailings and preparation method thereof
  • Porous insulating decorative material prepared by utilizing iron tailings and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) Use a ball mill to ball mill and sieve the iron tailings to obtain iron tailings powder with a fineness of <100 μm, and at the same time crush and grind the waste glass to below 100 μm;

[0031] 2) The iron tailings powder, foaming agent, flux, foam stabilizer, and wave-absorbing material are 78% iron tailings powder, 9% calcium carbonate, 1% industrial-grade sodium fluorosilicate, and industrial-grade boric acid according to the mass percentage 9%, silicon carbide 3% to select materials, mix them evenly with a mixer, add 13% of the total mass of dry powder to water spray granulation as a raw material for the porous insulation layer, and age for 5 days in a closed space; Mineral powder, waste glass powder, thickener, expansion agent, color adjustment material, wave-absorbing material by mass percentage is 50% iron tailings powder, 40% waste glass powder, 5% bauxite, 2% vermiculite, oxidation Cobalt 2%, silicon carbide 1% select materials, mix them evenly with a mixer...

Embodiment 2

[0034] 1) Same as embodiment 1;

[0035]2) The iron tailings powder, foaming agent, flux, foam stabilizer, and wave-absorbing material are 80% of iron tailings powder, 9% of calcium carbonate, 1% of industrial grade ethylenediamine, and 8% of industrial grade boric acid according to the mass percentage. %, silicon carbide 2% to select the material, mix it evenly with a mixer, add 14% of the total mass of the dry powder to water spray granulation as a raw material for the porous insulation layer, and age it in a closed space for 7 days; iron tailings Powder, waste glass powder, thickener, expansion agent, color adjustment material, absorbing material by mass percentage is 60% of iron tailings powder, 30% of waste glass powder, 5% of bauxite, 2% of vermiculite, cobalt oxide 2%, silicon carbide 1% select materials, mix them evenly with a mixer, add 12% of the total mass of dry powder to water spray granulation as the raw material for the glass surface decoration layer, and age in...

Embodiment 3

[0038] 1) Same as embodiment 1;

[0039] 2) The iron tailings powder, foaming agent, flux, foam stabilizer, and wave-absorbing material are 82% of iron tailings powder, 9% of calcium carbonate, 1% of industrial grade ethylenediamine, and 6% of industrial grade borax according to the mass percentage. %, silicon carbide 2% to select the material, mix it evenly with a mixer, add 15% of the total mass of the dry powder to water spray granulation as a raw material for the porous insulation layer, and age it in a closed space for 8 days; iron tailings Powder, waste glass powder, thickener, expansion agent, color adjustment material, wave-absorbing material by mass percentage is iron tailings powder 70%, waste glass powder 20%, bauxite 5%, vermiculite 2%, cobalt oxide 2%, silicon carbide 1%, select the material, mix it evenly with a mixer, add 13% of the total mass of the dry powder to water spray granulation as the raw material for the glass surface decoration layer, and age it in a...

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Abstract

The invention relates to a porous insulating decorative material prepared by utilizing iron tailings and a preparation method thereof. The porous insulating decorative material is prepared by mixing and pelleting solid mixed powder and water and performing microwave sintering, and comprises a porous insulating layer and a glass surface decoration layer, wherein the porous insulating layer comprises the following raw materials in percent by mass: 75-85 percent of iron tailings powder, 2-10 percent of foaming agent, 0.1-1 percent of fluxing agent, 0.1-9 percent of foam stabilizer and 1-5 percent of wave-absorbing material; the glass surface decoration layer comprises the following raw materials in percent by mass: 45-75 percent of iron tailings powder, 20-50 percent of waste glass powder, 1-10 percent of thickening agent, 1-5 percent of expanding agent, 1-5 percent of color adjusting material and 1-3 percent of wave-absorbing material. The porous insulating decorative material has the beneficial effects that the defects of easy drop, complex process and the like caused by distribution and installation of the thermal insulation material and facing material are overcome; moreover, the utilization rate of the iron tailings is over 85 percent, and the emission reduction benefits are obvious.

Description

technical field [0001] The invention belongs to building materials, and in particular relates to a porous thermal insulation decoration material prepared from iron tailings and a preparation method thereof. Background technique [0002] With the rapid development of the iron and steel industry, the total amount of waste such as tailings produced in the process of iron ore mining has reached 2 billion tons. Therefore, when it is stored in tailings dams or discharged into rivers, valleys, and lowlands nearby, it often seeps and overflows, blows wind and dust, forms sandstorms and seriously pollutes water sources, soil, and air, and deteriorates living and production conditions in surrounding areas. It has brought serious pollution and harm to the human living environment; at the same time, the harmful components in the tailings and the residual mineral dressing agents will also cause serious harm to the ecological environment. The chemical composition of iron tailings is main...

Claims

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Application Information

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IPC IPC(8): C04B38/02C03C6/10B32B17/06
Inventor 蹇守卫孔维马保国周浩蔡礼雄高海波徐海跃
Owner WUHAN UNIV OF TECH
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