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Preparation method of additive for improving strength of building ceramic dry granulation powder forming wet blank

A technology for building ceramics and powder molding, which is applied in the field of preparation of additives for improving the strength of wet blanks formed by dry granulation powders of architectural ceramics. The effect of wet billet strength and broad market prospect

Inactive Publication Date: 2019-12-27
JINGDEZHEN CERAMIC INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of the dry granulation technology of architectural ceramics is that the green body formula system uses less plastic clay, and the strength of the green body (wet billet) after powder dry pressing is low, and the formed wet billet is not convenient for the production line. Therefore, improving the strength of the wet billet after the dry granulation powder is formed is the technical bottleneck to promote the application of dry granulation technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method of additives for improving the strength of building ceramics dry granulation powder forming wet billets, characterized in that the components are composed in the following weight percentages: 15% xanthan gum, 50% PVA, 35% additive A, after mixing access to additives;

[0022] The preparation method of described additive A is as follows:

[0023] Components in the following percentages by weight: 40% boric acid, 55% sodium carbonate, 3% nano-silicon oxide, 2% slaked lime, additive A is obtained after batching, ball milling and sieving.

[0024] The ball milling process adopts fast ball milling for 6 minutes, the speed of the fast milling is 300 rpm, and the weight ratio of the balls is 1:0.5.

[0025] The sieving process is to pass through a 100-mesh sieve, and the sieve residue is zero.

[0026] The use steps of described additive are as follows:

[0027] The first step: mix xanthan gum, PVA, and additive A according to the proportion to make add...

Embodiment 2

[0035] A preparation method of additives for improving the strength of building ceramics dry granulation powder forming wet billets, characterized in that the components are composed in the following weight percentages: 15% xanthan gum, 50% PVA, 35% additive A, after mixing access to additives;

[0036] The preparation method of described additive A is as follows:

[0037] Components in the following percentages by weight: 40% boric acid, 55% sodium carbonate, 3% nano-silicon oxide, 2% slaked lime, additive A is obtained after batching, ball milling and sieving.

[0038] The ball milling process adopts fast ball milling for 5 minutes, the speed of the fast milling is 350 rpm, and the weight ratio of the balls is 1:0.5.

[0039] The sieving process is to pass through a 100-mesh sieve, and the sieve residue is zero.

[0040] The use steps of described additive are as follows:

[0041] The first step: mix xanthan gum, PVA, and additive A according to the proportion to make add...

Embodiment 3

[0049] A preparation method of additives for improving the strength of building ceramics dry granulation powder forming wet billets, characterized in that the components are composed in the following weight percentages: 15% xanthan gum, 50% PVA, 35% additive A, after mixing access to additives;

[0050] The preparation method of described additive A is as follows:

[0051] Components in the following percentages by weight: 40% boric acid, 55% sodium carbonate, 3% nano-silicon oxide, 2% slaked lime, additive A is obtained after batching, ball milling and sieving.

[0052] The ball milling process adopts fast ball milling for 8 minutes, the speed of the fast milling is 400 rpm, and the weight ratio of the balls is 1:0.5.

[0053] The sieving process is to pass through a 100-mesh sieve, and the sieve residue is zero.

[0054] The use steps of described additive are as follows:

[0055] The first step: mix xanthan gum, PVA, and additive A according to the proportion to make add...

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Abstract

The invention discloses a preparation method of an additive for improving the strength of a building ceramic dry granulation powder forming wet blank, which comprises the following steps: uniformly mixing the following components in percentage by weight: 15% of xanthan gum, 50% of PVA and 35% of an additive A to obtain the additive; wherein the additive A is prepared from the following componentsin percentage by weight: 40% of boric acid, 55% of sodium carbonate, 3% of nano silicon oxide and 2% of slaked lime through steps of burdening, ball milling and sieving. By using the additive, the wetgreen body strength of the brick body can be obviously improved, and the operation of the formed green body on a production line is facilitated; meanwhile, the additive is particularly suitable for the production of large ultrathin bricks and meets the current market requirements, so that the additive has a wide market prospect.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials, and in particular relates to a preparation method of an additive for improving the strength of a wet body formed by dry granulation powder of architectural ceramics. Background technique [0002] The traditional granulation method of architectural ceramics is wet ball milling and then spray granulation; however, with the development of society and technological progress, a new granulation method has emerged, namely dry granulation method. Compared with the traditional granulation method, the dry granulation method has the advantages of less land occupation (70-80% of the traditional ball mill area), lower energy consumption (30-40% energy saving), noise reduction of more than 20dB and It has the advantages of greatly reducing water consumption; the dry granulation process conforms to the national policy of energy conservation and emission reduction, and has the advantages of energy...

Claims

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Application Information

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IPC IPC(8): C04B35/636C04B35/634C04B35/63
CPCC04B35/6303C04B35/63416C04B35/636C04B2235/3208C04B2235/3409C04B2235/3418C04B2235/442C04B2235/61
Inventor 刘阳
Owner JINGDEZHEN CERAMIC INSTITUTE
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