Method for preparing honeycomb ceramic heat accumulator by industrial ceramic waste

A technology of honeycomb ceramics and ceramic waste, which is applied in heat storage equipment, indirect heat exchangers, heat exchanger types, etc., can solve the problem of high price, achieve excellent refractoriness, meet strict requirements, and excellent load softening index.

Inactive Publication Date: 2012-09-19
天津天立源节能环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The materials of the honeycomb ceramic regenerator mainly include corundum-mullite, mullite, cordierite-mullite, cordierite, etc. The main raw materials used are industrial alumina, sintered mullite, aluminum Bauxite, etc., but the price is higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]Use discarded alumina sticks as raw materials, after grinding and homogenizing to a fineness of less than 300 mesh, its chemical composition is: Al 2 o 3 Content 92.35%, SiO 2 Content 6.39%, Fe 2 o 3 Content 0.49%, TiO 2 The content is 1.36%, and the weight percentage content of each component of the raw material is calculated as:

[0039] Alumina stick waste 45%, sintered mullite 32%, Shuozhou soil 23%.

[0040] (1) Weigh each component according to the above weight ratio relationship;

[0041] (2) Grinding and homogenizing the above-mentioned aluminum oxide stick waste until the fineness is less than 300 mesh;

[0042] (3) Fully mix the obtained alumina stick waste powder, sintered mullite powder and Shuozhou soil powder;

[0043] (4) Add 3% hydroxymethyl cellulose with a weight of 3% of the total weight of the mixed powder as a molding aid, 3% soybean oil as a lubricant and 25% water to the above mixed powder, and then mix, knead, knead Mud and stale process t...

Embodiment 2

[0049] Use discarded alumina kiln furniture as raw material, after grinding and homogenizing to a fineness of less than 300 mesh, its chemical composition is: Al 2 o 3 Content 90.01%, SiO 2 Content 8.25%, Fe 2 o 3 Content 0.65%, TiO 2 The content is 1.52%, and the weight percentage content of each component of the raw material is calculated as:

[0050] Alumina kiln furniture waste 48%, sintered mullite 30%, Shuozhou soil 22%.

[0051] (1) Weigh each component according to the above weight ratio relationship;

[0052] (2) Grinding and homogenizing the above alumina kiln furniture waste until the fineness is less than 300 mesh;

[0053] (3) Fully mix the obtained alumina kiln furniture waste powder, sintered mullite powder and Shuozhou soil powder;

[0054] (4) Add 3% hydroxymethyl cellulose with a weight of 3% of the total weight of the mixed powder as a molding aid, 3% soybean oil as a lubricant and 25% water to the above mixed powder, and then mix, knead, knead Mud a...

Embodiment 3

[0060] The mixture of recovered various alumina industrial ceramic wastes is selected as raw material, after grinding and homogenization to a fineness of less than 300 mesh, its chemical composition is: Al 2 o 3 Content 88.01%, SiO 2 Content 10.23%, Fe 2 o 3 Content 0.92%, TiO 2 The content is 2.47%, and the weight percentage content of each component of the raw material is calculated as:

[0061] Alumina porcelain mixed waste 50%, sintered mullite 30%, Shuozhou soil 20%.

[0062] (1) Weigh each component according to the above weight ratio relationship;

[0063] (2) Grinding and homogenizing the above-mentioned alumina porcelain mixed waste until the fineness is less than 300 mesh;

[0064] (3) Fully mix the obtained alumina porcelain mixed waste powder, sintered mullite powder and Shuozhou soil powder;

[0065] (4) Add 3% hydroxymethyl cellulose with a weight of 3% of the total weight of the mixed powder as a molding aid, 3% soybean oil as a lubricant and 25% water to...

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Abstract

The invention belongs to the technical field for preparing a ceramic heat accumulator, and particularly relates to a method for preparing a honeycomb ceramic heat accumulator by industrial ceramic waste, comprising the following steps of: weighing 45-50% of industrial ceramic waste, 30-32% of sintered mullite powder and 20-23% of Shuozhou soil powder according to the weight proportion; grinding and homogenizing the industrial ceramic waste to be less than 300 meshes; fully mixing; adding a molding assistant, a lubricant and water; obtaining a mud material after mixing, kneading, pugging and staling; extruding the mud material to form a shape, and cutting to be biscuits; and drying and sintering the biscuits, and then obtaining the finished ceramic heat accumulator. The ceramic heat accumulator obtained by the method disclosed by the invention has excellent performances, not only satisfies usage requirement of a heating furnace in the metallurgy industry, but also reduces preparation cost, consumes waste produced in the production of the industrial ceramics and usage of the industrial ceramics, and reduces resource waste and environment pollution.

Description

technical field [0001] The invention belongs to the technical field of ceramic regenerator preparation, and in particular relates to a method for preparing a honeycomb ceramic regenerator from industrial ceramic waste. Background technique [0002] The energy-saving regenerator used in the regenerative high-temperature combustion technology is a ceramic material, and its shape has undergone a development process from checker bricks to small balls to honeycomb bodies. The improvement from checker bricks to small balls makes the regenerative combustion technology truly realized, and the improvement from small balls to honeycomb body makes the regenerative high-temperature combustion technology finally perfected. Honeycomb ceramics represent the product and technology development direction of regenerators. The development process of ceramic regenerators from checker bricks to honeycomb bodies is only a change in shape on the surface, but it contains huge technological progress....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/00C04B35/622F28D20/00
CPCY02E60/142Y02E60/14
Inventor 于永启李瑞雪
Owner 天津天立源节能环保科技有限公司
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