Antistatic ceramic prepared from large admixing amount red mud taken as raw material and sintered in roller kiln and preparation method thereof

A roller kiln and anti-static technology, applied in the production of ceramic materials, clay products, other household appliances, etc., can solve the problems of low utilization rate of red mud random stacking, small deformation of anti-static ceramics, limited recycling channels, etc. It is beneficial to large-scale industrial production, the anti-static performance can be adjusted, and the deformation is small.

Active Publication Date: 2017-10-24
ZIBO GOLD LION KING TECH CERAMICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of anti-static ceramics fired in a roller kiln with a large amount of red mud as raw material, which solves the problems of low utilization rate of random stacking of red mud and limited recycling channels, and has the advantages of large amount of red mud raw materials , The fired antistatic ceramics have the characteristics of small deformation and no foaming, high production efficiency, and are conducive to large-scale industrial production. The invention also provides its preparation method

Method used

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  • Antistatic ceramic prepared from large admixing amount red mud taken as raw material and sintered in roller kiln and preparation method thereof
  • Antistatic ceramic prepared from large admixing amount red mud taken as raw material and sintered in roller kiln and preparation method thereof
  • Antistatic ceramic prepared from large admixing amount red mud taken as raw material and sintered in roller kiln and preparation method thereof

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Effect test

Embodiment 1

[0022] (1) Dosing according to mass percentage, prepare a mixed material containing 55% red mud, 5% kaolin, 10% burnt gemstone, 12% refractory clay and 18% high-temperature feldspar, according to the mass ratio of water and mixed material is 35 The ratio of :65 is mixed with water, and the slurry is obtained after grinding for 10 minutes on a fast grinder, and the ground slurry is dried to obtain a dry powder, and the ceramic powder is made by a pelletizing machine or by hand;

[0023] (2) Put the ceramic powder prepared by step (1) into the mold, mold it at 200MPa, dry it at 150°C for 1 hour, put it into the roller kiln and burn it at 1160°C, the firing cycle is 70 Minutes, that is, anti-static ceramics.

[0024] After testing, the water absorption rate of the antistatic ceramic obtained in this embodiment is 0.1%, and the flexural strength is 33 MPa. According to the test method stipulated in the national standard GB1410-2006, the surface resistance and volume resistance of...

Embodiment 2

[0026] (1) Dosing according to mass percentage, prepare a mixed material containing 65% red mud, 5% kaolin, 10% burnt gemstone, 7% refractory clay and 13% high-temperature feldspar, according to the mass ratio of water to mixed material is 35 The ratio of :65 is mixed with water, and the slurry is obtained after grinding for 10 minutes on a fast grinder, and the ground slurry is dried to obtain a dry powder, and the ceramic powder is made by a pelletizing machine or by hand;

[0027] (2) Put the ceramic powder prepared by step (1) into a mold and mold it at 200MPa, dry it at 150°C for 1 hour, put it into a roller kiln and burn it at 1155°C, and the firing cycle is 70 minutes , That is, anti-static ceramics.

[0028] After testing, the water absorption rate of the antistatic ceramic obtained in this embodiment is 0.4%, and the flexural strength is 29 MPa. According to the test method stipulated in the national standard GB1410-2006, the surface resistance and volume resistance ...

Embodiment 3

[0030](1) Dosing according to mass percentage, prepare a mixed material containing 75% red mud, 5% kaolin, 10% burnt gemstone, 3% refractory clay and 7% high-temperature feldspar, according to the mass ratio of water to mixed material is 35 The ratio of :65 is mixed with water, and the slurry is obtained after grinding for 10 minutes on a fast grinder, and the ground slurry is dried to obtain a dry powder, and the ceramic powder is made by a pelletizing machine or by hand;

[0031] (2) Put the ceramic powder prepared by step (1) into a mold and mold it at 200MPa, dry it at 150°C for 1 hour, put it into a roller kiln and burn it at 1150°C, and the firing cycle is 70 minutes , That is, anti-static ceramics.

[0032] After testing, the water absorption rate of the antistatic ceramic obtained in this embodiment is 0.9%, and the flexural strength is 25 MPa. According to the test method stipulated in the national standard GB1410-2006, the surface resistance and volume resistance of...

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Abstract

The invention relates to an antistatic ceramic prepared from large admixing amount red mud taken as the raw material and sintered in a roller kiln and a preparation method thereof, and belongs to the technical field of ceramic preparation. The antistatic ceramic is prepared from the following raw materials in percentage by weight: 55 to 75% of red mud, 5% of kaolin, 10% of cooked flint clay, 3 to 12% of refractory clay, and 7 to 18% of high temperature feldspar. The preparation method comprises the following steps: evenly mixing the raw materials according to the ratio mentioned above, then adding water according to a ratio of water to raw materials of 35:65, mixing, grinding, drying, grinding again to obtain dry powder, preparing ceramic powder by a balling machine or a manual mode, carrying out compression moulding under a pressure of 200 MPa, drying obtained mould for 1 hour at a temperature of 150 DEG C, then placing the mould in a roller kiln, and burning the mould at a temperature of 1150 to 1160 DEG C to obtain the antistatic ceramic. The using amount of red mud is large, by adjusting the using amount of red mud, the antistatic indexes of the antistatic ceramic are controlled conveniently; the antistatic ceramic is sintered in a roller kiln at a time, the deformation amount is little, no foam is generated, the production efficiency is high, and the preparation method is suitable for large scale industrial production.

Description

technical field [0001] The invention relates to an antistatic ceramic fired in a roller kiln with a large amount of red mud as a raw material and a preparation method thereof, belonging to the technical field of ceramic preparation. Background technique [0002] Red mud is a by-product of the alumina industry, and its discharge is very large. The annual production of red mud waste in my country reaches 10 million tons. Random stacking of waste will have a serious impact on the environment such as the atmosphere, water and soil. Therefore, the development of red mud Mud recycling technology is imminent. Red mud has a high iron content and also contains calcium carbonate that can be decomposed at high temperature. When it is used as a ceramic raw material, the iron component in red mud tends to form a liquid phase with a low melting point when fired at high temperature, while the carbonic acid The gas generated by salt decomposition will bring pores in the ceramic body and pin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B35/622C04B35/64
CPCC04B33/1322C04B35/622C04B35/64C04B2235/3463Y02P40/60
Inventor 姚奇恒袁东峰张辉袁飞
Owner ZIBO GOLD LION KING TECH CERAMICS CO LTD
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