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Processing technology for reducing crack generation rate in sintering process of diatomite insulating bricks

A technology of sintering process and processing technology is applied in the field of processing technology for reducing the crack formation rate during the sintering process of diatomite thermal insulation bricks, which can solve the problems of reduced appearance and quality of sintered products, easy cracks on the surface of sintered products, etc., so as to reduce cracks. The effect of generating, suppressing expansion, and improving integrity

Inactive Publication Date: 2021-01-29
安徽滨江新型墙材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the heating process of the green body, each component of the raw material undergoes a phase change and produces a volume change. Due to the reasons of each component, the volume change of each component is different, which leads to cracks on the surface of the sintered product, resulting in the appearance of the sintered product. and a reduction in quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016]A processing technology for reducing the rate of crack formation during the sintering of diatomite insulation bricks. The specific technology is as follows:

[0017]1) Place the wood pulp board in a mixer and add an appropriate amount of distilled water, disperse it evenly, pour it into the container, add an equal volume of distilled water, and an appropriate amount of 2,2,6,6-tetramethylpiperidine oxide and bromine Sodium chloride, slowly add sodium hypochlorite after mixing to form a reaction system, and control the mass and volume of wood pulp board, distilled water, 2,2,6,6-tetramethylpiperidine oxide, sodium bromide and sodium hypochlorite in the reaction system The ratio is 1g:90mL:0.015g:0.1g:0.6g, and the reaction is stirred at 80r / min for 5h at room temperature. During the reaction, a sodium hydroxide solution with a concentration of 0.5mol / L is used to adjust the pH of the reaction system and maintain it at 9.5. After the reaction is completed, filter, wash the product ...

Embodiment 2

[0023]A processing technology for reducing the rate of crack formation during the sintering of diatomite insulation bricks. The specific technology is as follows:

[0024]1) Place the wood pulp board in a mixer and add an appropriate amount of distilled water, disperse it evenly, pour it into the container, add an equal volume of distilled water, and an appropriate amount of 2,2,6,6-tetramethylpiperidine oxide and bromine Sodium chloride, slowly add sodium hypochlorite after mixing to form a reaction system, and control the mass and volume of wood pulp board, distilled water, 2,2,6,6-tetramethylpiperidine oxide, sodium bromide and sodium hypochlorite in the reaction system The ratio is 1g:95mL:0.017g:0.13g:0.7g, and the reaction is stirred at 90r / min for 5.5h at room temperature. During the reaction, a sodium hydroxide solution with a concentration of 0.55mol / L is used to adjust the pH of the reaction system and maintain it at 10.0 After the reaction is completed, filter the product, r...

Embodiment 3

[0030]A processing technology for reducing the rate of crack formation during the sintering of diatomite insulation bricks. The specific technology is as follows:

[0031]1) Place the wood pulp board in a mixer and add an appropriate amount of distilled water, disperse it evenly, pour it into the container, add an equal volume of distilled water, and an appropriate amount of 2,2,6,6-tetramethylpiperidine oxide and bromine Sodium chloride, slowly add sodium hypochlorite after mixing to form a reaction system, and control the mass and volume of wood pulp board, distilled water, 2,2,6,6-tetramethylpiperidine oxide, sodium bromide and sodium hypochlorite in the reaction system The ratio is 1g:9100mL:0.018g:0.15g:0.8g, and the reaction is stirred at 100r / min for 6h at room temperature. During the reaction, a sodium hydroxide solution with a concentration of 0.6mol / L is used to adjust the pH of the reaction system and maintain it at 10.5. After the reaction is completed, filter, the product ...

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Abstract

The invention discloses a processing technology for reducing the crack generation rate in the sintering process of diatomite insulating bricks, and relates to the technical field of wall materials, and the specific technology is as follows: 1) preparing a nano cellulose dispersion liquid; 2) processing to obtain carbon aerogel powder; 3) carrying out modification treatment on the carbon aerogel; and 4) grinding the raw materials of the diatomite insulating brick, adding water, uniformly mixing to obtain a wet material, adding the modified carbon aerogel compound, carrying out compression molding, curing, and calcining to obtain the finished product insulating brick. According to the invention, the conventional diatomite insulating brick is selected as a basic raw material, and the modifiedcarbon aerogel compound is introduced, so that the expansion of cracks in the sintering process of the insulating brick can be inhibited, the generation of the cracks is reduced, the integrity of theappearance structure of the insulating brick is improved, and the quality of the insulating brick is improved.

Description

Technical field[0001]The invention belongs to the technical field of wall materials, and in particular relates to a processing technology for reducing the crack generation rate during the sintering process of diatomite thermal insulation bricks.Background technique[0002]my country’s diatomite resources are widely distributed and have large reserves, but it is impossible to directly deep-process most of the resources. The reason is that most of my country’s diatomite deposits are 3-4 grade soils, and the impurities therein The content is higher. The use direction of diatomite in my country is mainly thermal insulation materials, including thermal insulation bricks, thermal insulation powder, calcium silicate boards and light-weight wall materials. The fired thermal insulation materials have lower requirements for the taste of diatomite and can It can be processed into various shapes as required, and can be carved, and can be used as a decorative board. If some other materials with sp...

Claims

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Application Information

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IPC IPC(8): C04B35/14C04B35/80C04B38/00C04B35/622C01B32/05
CPCC04B35/14C04B35/62204C04B38/0045C04B2235/36C04B2235/422C04B2235/442C01B32/05
Inventor 丁玉龙
Owner 安徽滨江新型墙材有限公司