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Method for preparing porcelain building ceramic from fully-lean waste porcelain through gelling formation

A barren, porcelain material technology is applied in the field of preparing porcelain building ceramics by cementing and molding all barren waste porcelain materials. Significant social and economic benefits, strong noise effect

Inactive Publication Date: 2016-07-27
JINGDEZHEN CERAMIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

According to incomplete statistics: the annual output of various waste porcelain materials in Foshan ceramic production area alone has exceeded 4 million tons, while the annual output of waste porcelain materials in China is estimated to be about 10 million tons. Such a large amount of waste porcelain materials is no longer simply filled. Buried can solve the problem, and with the increasing economic development and social progress, the environment has become the focus of people's attention, the accumulation of waste ceramic materials occupies land resources, affects the dust content of the local air, and the landfill of ceramic waste is also expensive Manpower and material resources

Method used

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  • Method for preparing porcelain building ceramic from fully-lean waste porcelain through gelling formation

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Embodiment 1

[0019] A method for preparing porcelain building ceramics by gelling molding of all barren waste porcelain materials, using waste porcelain powder as a raw material, water as a dispersion medium, guar gum as a gelling agent, and polycarboxylic acid as a dispersant, by weight Percentage After mixing 58wt% of waste porcelain powder, 42wt% of water and 0.3wt% of polycarboxylic acid (additional), pre-ball milling is carried out, and the ball milling medium is ZrO 2 Grinding balls, the ratio of material to ball is 1:2, the ball milling time is 0.5h, and then the pre-milled slurry is mixed with 0.7wt% guar gum (additional) and ball milling is continued for 1h, and then the obtained product is obtained after vacuum defoaming Slurry is required; then wet casting and gelling molding process is used to make a ceramic body, and then it is dried and solidified, consolidated and dried, then released from the mold, and finally fired at 1140°C to obtain porcelain building bricks;

[0020] Th...

Embodiment 2

[0022] A method for preparing porcelain building ceramics by gelling molding of all barren waste porcelain materials, using waste porcelain powder as a raw material, water as a dispersion medium, guar gum as a gelling agent, and polycarboxylic acid as a dispersant, by weight Percentage After mixing 62wt% of waste porcelain powder, 38wt% of water and 0.2wt% of polycarboxylic acid (additional), pre-milling is carried out, and the ball-milling medium is ZrO 2 Grinding balls, the ratio of material to ball is 1:2, the ball milling time is 0.5h, and then the pre-milled slurry is mixed with 0.7wt% guar gum (additional) and ball milling is continued for 1h, and then the obtained product is obtained after vacuum defoaming Slurry is required; then the ceramic body is made by wet casting and gelling molding technology, and then dried and solidified, consolidated and dried, then demoulded, and finally fired at 1160°C to obtain porcelain building bricks;

[0023] The drying and curing temp...

Embodiment 3

[0025] A method for preparing porcelain building ceramics by gelling molding of all barren waste porcelain materials, using waste porcelain powder as a raw material, water as a dispersion medium, guar gum as a gelling agent, and polycarboxylic acid as a dispersant, by weight Percentage After mixing 64wt% of waste porcelain powder, 36wt% of water and 0.1wt% of polycarboxylic acid (additional), pre-ball milling is carried out, and the ball milling medium is ZrO 2 Grinding balls, the ratio of material to ball is 1:2, the ball milling time is 0.5h, and then the pre-milled slurry is mixed with 0.6wt% guar gum (additional) and ball milling is continued for 1h, and then the obtained product is obtained after vacuum defoaming Slurry is required; then the ceramic body is made by wet casting and gelling molding technology, and then dried and solidified, consolidated and dried, then demoulded, and finally fired at 1160°C to obtain porcelain building bricks;

[0026] The drying and curing...

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Abstract

The invention discloses a method for preparing porcelain building ceramic from fully-lean waste porcelain through gelling formation. The method comprises the following steps: with lean waste porcelain as a raw material, water as a dispersion medium, guar gum as a gelling agent and polycarboxylic acid as a dispersing agent, performing ball milling; performing gelling formation by wet pouring to obtain a ceramic body; gelling, drying and curing at a low temperature of 50-70 DEG C, and consolidating and demoulding; firing at 1,140-1,180 DEG C; and cooling to obtain a porcelain building brick body with breaking strength of 50-65MPa. In the invention, gelling formation is adopted as a forming method, and the production cost can be saved; since the green and nontoxic macromolecular polysaccharides are introduced into the forming technology, the pollution of waste gas and wastewater is effectively avoided, the pollution is reduced from the source, and the production environment is cleaner. The fully-lean waste porcelain is innovatively adopted as the raw material, thus the raw material source of the building ceramic is expanded, the resource utilization of the waste porcelain solid waste can be effectively realized, and the economic benefits are remarkable.

Description

technical field [0001] The invention relates to a method for preparing porcelain building ceramics, in particular to a method for preparing porcelain building ceramics by gelling and molding all barren waste porcelain materials. Background technique [0002] According to relevant statistics, in 2014, the total output of building ceramics in China exceeded 10 billion m 2 , according to consumption of raw materials 20 ~ 24kg / m 2 Calculated, 180-210 million tons of raw materials are needed; according to the power consumption of 5kWh / m 2 Calculated, the power consumption is about 50 billion kWh, and the building ceramics industry is a high-consumption and high-polluting enterprise. [0003] With the gradual transfer of the ceramic industry to the mainland, the commonly used high-quality building ceramic plastic materials such as kaolin and black mud are increasingly exhausted. With the rapid development of the ceramic industry, ceramic waste is increasing day by day while the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/28
CPCC04B33/1324C04B33/28Y02P40/60
Inventor 顾幸勇赵志成罗婷董伟霞
Owner JINGDEZHEN CERAMIC UNIV
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