Method for preparing super-flat glaze-polished ceramic tile from coal gangue

A technology of coal gangue and flat throwing, which is applied in the production, application, household appliances and other directions of ceramic materials, can solve the problems of poor gloss, environmental pollution, poor color development, etc., to shorten the firing cycle, reduce production costs, The effect of broad market prospects

Active Publication Date: 2017-06-09
JINGDEZHEN CERAMIC INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the current glazed tiles still have problems such as poor color development, many bubbles, and poor gloss, these problems can no longer meet the needs of consumers.
At the same time, there is an increasing phenomenon of coal gangue in my country, which has caused soil erosion and environmental pollution. Therefore, how to rationally use coal gangue has become a relatively urgent social problem.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A method for preparing ultra-flat polished glazed ceramic tiles from coal gangue, characterized in that it comprises the following steps:

[0037] (1) Preparation of green body bottom powder:

[0038] The mass percentage of the base powder of the green body is: 50% of coal gangue, 15% of kaolin, 10% of albite feldspar, 14% of calcite, and 11% of wollastonite;

[0039] The preparation process of the bottom layer powder of the green body is as follows: first, the coal gangue is crushed, fired at 360°C, ground, pickled, and then passed through a 120-mesh sieve, and the sieve residue is 0.3%, and then according to the powder formula of the bottom layer of the green body Weigh the raw materials, mix them evenly, put them into the ball milling equipment for ball milling, and import the milled slurry into the drying tower for drying to make the bottom layer powder of the green body for later use;

[0040] The particle size of the bottom layer powder of the green body is as fo...

Embodiment 2

[0061] A method for preparing ultra-flat polished glazed ceramic tiles from coal gangue, characterized in that it comprises the following steps:

[0062] (1) Preparation of green body bottom powder:

[0063] The mass percentage of the base powder of the green body is: 52% of coal gangue, 11% of kaolin, 12% of albite feldspar, 15% of calcite, and 10% of wollastonite;

[0064] The preparation process of the bottom layer powder of the green body is as follows: first, the coal gangue is crushed, fired at 360°C, ground, pickled, and then passed through a 120-mesh sieve, and the sieve residue is 0.3%, and then according to the powder formula of the bottom layer of the green body Weigh the raw materials, mix them evenly, put them into the ball milling equipment for ball milling, and import the milled slurry into the drying tower for drying to make the bottom layer powder of the green body for later use;

[0065] The particle size of the bottom layer powder of the green body is: 30-5...

Embodiment 3

[0087] A method for preparing ultra-flat polished glazed ceramic tiles from coal gangue, characterized in that it comprises the following steps:

[0088] (1) Preparation of green body bottom powder:

[0089] The mass percentage of the base powder of the green body is: 50% of coal gangue, 16% of kaolin, 10% of albite, 11% of calcite, and 13% of wollastonite;

[0090] The preparation process of the bottom layer powder of the green body is as follows: first, the coal gangue is crushed, fired at 360°C, ground, pickled, and then passed through a 120-mesh sieve, and the sieve residue is 0.3%, and then according to the powder formula of the bottom layer of the green body Weigh the raw materials, mix them evenly, put them into the ball milling equipment for ball milling, and import the milled slurry into the drying tower for drying to make the bottom layer powder of the green body for later use;

[0091] The particle size of the bottom layer powder of the green body is: 30-50 mesh ac...

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Abstract

The invention discloses a method for preparing a super-flat glaze-polished ceramic tile from coal gangue. By adopting a double-layer green body and reasonable green body formula and grain size gradation, the coal gangue is used as a main production raw material of the green body to the maximum extent; meanwhile, by raising the initial melting temperature of a ground coat layer, gas in the green body is exhausted as much as possible; in addition, a wear-resisting fritted glaze is adopted in a cover coat layer, so that the melting temperature of the glaze is reduced, and the abrasive hardness of the glaze is guaranteed; finally, the strength of a brick body and the flatness of the glaze are improved by adopting a high-temperature and heat-insulating mode. According to the method disclosed by the invention, by using the coal gangue as the main raw material and the wear-resisting fritted glaze, resource utilization of wastes is effectively realized, the sintering temperature is greatly lowered, the sintering period is shortened, and the production cost is remarkably reduced, so the method has a broad market prospect.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials (ceramics), and in particular relates to a method for preparing ultra-flat polished glazed ceramic tiles by using coal gangue. Background technique [0002] Fully glazed ceramic tiles are the products of traditional polished tiles after glazing on the surface. Compared with traditional polished tiles, fully glazed ceramic tiles not only have good stain resistance, but also have richer patterns and colors. After the tiles are fired at high temperature, It has the characteristics of bright colors, various designs and colors, and natural textures. Since ink-jet printing technology and mirror full-polishing technology were widely used in the production of architectural ceramics in 2010, the performance of fully-polished glazed ceramic tiles has been perfectly upgraded. The product combines the advantages of polished tiles, antique tiles, and tiles. The glossiness and porcelain hardness...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/34C03C8/00C03C8/02C03C8/14
CPCC03C8/00C03C8/02C03C8/14C04B33/132C04B33/34C04B2235/3208C04B2235/3454C04B2235/3472Y02P40/60
Inventor 余峰陈婧万萍程磊谭丽
Owner JINGDEZHEN CERAMIC INSTITUTE
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