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Foam ceramic insulation material and preparation method thereof

A technology of thermal insulation materials and foam ceramics, applied in the field of thermal insulation materials, can solve the problems of underutilization, occupying space, destroying the ecological environment, etc., and achieve the effects of light strength, improved production efficiency, and uniform distribution of pores

Inactive Publication Date: 2016-11-09
江西嘉陶无机材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the main treatment method of these wastes is to bury them underground, or let them pile up, which not only occupies the site, but also destroys the ecological environment.
Moreover, the components such as silicon oxide, aluminum oxide, alkali metal and alkaline earth metal oxides contained in these wastes have not been fully utilized.

Method used

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  • Foam ceramic insulation material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing a foamed ceramic thermal insulation material. First, the raw materials are weighed and prepared according to the following weight percentages: 95% of waste rock powder, 1% of lithium china stone, 1% of lightly burned magnesia, 2% of kaolin and 1% of foaming agent;

[0023] After the raw materials are weighed and mixed, use wet ball milling, add 50% water of the total weight of the raw materials, ball mill in the ball mill to a fineness of 100 mesh, and then spray dry to obtain granular powder with a moisture content of about 7%. It is understandable Yes, dry ball milling can also be used, and the raw materials are directly weighed and mixed, and then ball milled in a dry ball mill to a granular powder with a fineness of 100 mesh;

[0024] Distribute the prepared powder on the tunnel kiln car with baffles all around. The length of the powder accumulation is 3 meters, the width is 1.5 meters, and the height is 0.3 meters, and then the kiln car with t...

Embodiment 2

[0028] A method for preparing a foamed ceramic thermal insulation material. First, the raw materials are weighed and prepared according to the following weight percentages: 35% of scrap steel slag, 13% of lithium china stone, 20% of lightly burned magnesium, 30% of Suzhou soil and 2% of foaming agent;

[0029] After the raw materials are weighed and mixed, water is added to 50% of the total weight of the raw materials, ball milled in a ball mill to a fineness of 160 mesh, and then spray-dried to obtain a granular powder with a moisture content of about 7%;

[0030] Distribute the prepared powder on the tunnel kiln car with baffles all around. The length of the powder accumulation is 3 meters, the width is 1.5 meters, and the height is 0.3 meters, and then the kiln car with the powder is pushed into the tunnel kiln. Sintering, the sintering temperature is 1080°C, after 2 hours of heat preservation, it is naturally cooled to obtain block-shaped ceramic foam insulation materials; ...

Embodiment 3

[0034] A method for preparing a foamed ceramic thermal insulation material. First, the raw materials are weighed and prepared according to the following weight percentages: 75.5% of kaolin tailings, 12% of lithium china stone, 4% of lightly burned magnesia, 8% of kaolin and 0.5% of foaming agent;

[0035] After the raw materials are weighed and mixed, water is added to 50% of the total weight of the raw materials, ball milled in a ball mill to a fineness of 80 meshes, and then spray-dried to obtain a granular powder with a moisture content of about 7%;

[0036] Distribute the prepared powder on the tunnel kiln car with baffles all around. The length of the powder accumulation is 3 meters, the width is 1.5 meters, and the height is 0.3 meters, and then the kiln car with the powder is pushed into the tunnel kiln. Sintering, the sintering temperature is 1300°C, after 4 hours of heat preservation, it is naturally cooled to obtain a block-shaped ceramic foam insulation material;

...

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Abstract

The invention relates to a foam ceramic insulation material and a preparation method thereof. The foam ceramic insulation material comprises the following raw materials in weight content: 30-95% of industrial waste material by mixing one or more of waste slag, waste stone flour or kaolin mine tailing, 1-18% of lithium porcelain stone, 1-20% of light-burnt magnesia, 1-30% of clay, and 0.5-20% of a foaming agent. The preparation method comprises the following steps: A) performing ball-milling on the raw materials of the foam ceramic insulation material to prepare the granular powder; B) performing burden distribution on powder and sintering the powder at the temperature of 1000-1400 DEG C, insulating for 2-5 hours to obtain the foam ceramic insulation material; and C)cutting the foam ceramic insulation material and processing the foam ceramic insulation material. According to the invention, waste slag, waste stone flour or kaolin mine tailing are used for preparing the foam ceramic insulation material, the preparation has advantage of environmental protection, the foam ceramic insulation material has the advantages of uniform distribution of inner pores, low heat conduction coefficient, high intensity and light weight, and can be used as building fireproof, insulation and energy-saving material and other insulation energy saving industries.

Description

technical field [0001] The invention relates to the field of thermal insulation materials, in particular to a foam ceramic thermal insulation material and a preparation method thereof. Background technique [0002] The development of modern industry has brought a large amount of industrial waste, such as scrap steel slag produced by iron and steel plants, waste rock powder produced by quarries, tailings of various mines, etc. These wastes contain silicon oxide, aluminum oxide, Alkali metal and alkaline earth metal oxides can be used to make components of silicate materials. [0003] At present, the main treatment method of these wastes is to bury them underground, or let them pile up, which not only occupies the site, but also destroys the ecological environment. Moreover, components such as silicon oxide, aluminum oxide, alkali metal and alkaline earth metal oxides contained in these wastes have not been fully utilized. Dealing with these industrial wastes has become an u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/138C04B38/02
CPCC04B33/132C04B33/138C04B38/02C04B2235/3206C04B2235/3427Y02P40/60
Inventor 焦国豪程春明
Owner 江西嘉陶无机材料有限公司
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