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Method for recycling waste porcelain in porcelain tile production

A ceramic tile and formula technology, which is applied in the production, application, household appliances and other directions of ceramic materials, can solve the problems of not giving full play to the utilization value of waste porcelain, unfavorable sustainable development of the ceramic industry, and inability to consume waste porcelain, etc., and achieves easy construction. Paving, ensuring performance, improving resistance to high temperature deformation

Inactive Publication Date: 2013-09-25
GUANGDONG TIANBI CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention patent application with the publication number CN101948285A discloses calcium silicate materials made from waste porcelain powder, and the invention patent application with the publication number CN102351508A discloses a production method for making colored ceramic permeable bricks from waste porcelain; invention patent ZL200910169643 .8 Provides a method of using waste porcelain to prepare refractory, wear-resistant, alkali-resistant, and acid-resistant building materials. Invention patent ZL201010154867.4 discloses a production method of using waste porcelain to produce matt enamel, using waste porcelain in In the production of higher value-added products, the amount of waste porcelain used to improve the performance of the glaze is relatively low, and a huge amount of waste porcelain cannot be consumed
[0004] The traditional landfilling of waste porcelain puts huge pressure on the environment, or uses waste porcelain to produce some low-value-added products, which does not give full play to the utilization value of waste porcelain and wastes a lot of resources, which is not conducive to the ceramic industry. sustainable development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The first step: waste porcelain preparation. A kind of waste porcelain produced in the polishing stage in ceramic production is selected (the main component content is (wt%): SiO 2 : 75.19, Al 2 o 3 : 17.57, Fe 2 o 3 +TiO 2 : 0.63, CaO+MgO: 0.78, K 2 O+Na 2 O: 5.69, I.L: 0.17), crushed by a jaw crusher to a size equivalent to the particle size of the sandstone raw material in the batch (≤10mm). For the convenience of description, this waste porcelain is called waste porcelain 0 # (The same below).

[0024] The second step: ingredients, ball milling. Take waste porcelain 0 # To replace the sand and gravel raw materials in the basic material, waste porcelain accounts for 10% of the total mass of the basic material, sand and gravel account for 70% of the total mass of the basic material, clay accounts for 20% of the total mass of the basic material, plus 0.1% of the total mass of the basic material Silicon sodium carboxymethyl cellulose and 0.01% sodium carboxym...

Embodiment 2

[0030] The first step: waste porcelain preparation. The waste porcelain used is the waste porcelain described in the first step in embodiment 1. # .

[0031] The second step: ingredients, ball milling. Take waste porcelain 0 #To replace the sand and gravel raw materials in the ingredients, waste porcelain accounts for 20% of the total mass of the basic material, sand and gravel account for 65% of the total mass of the basic material, and clay accounts for 15% of the total mass of the basic material. Add 0.2% sodium silicate, 0.1% sodium carbonate and 0.1% sodium carboxymethyl cellulose to the above basic materials respectively. Raw materials, ball stones and water are added in a mass percentage of 1:1.2:0.52, and ball milled after mixing to control the final mud. The fineness is 1.0% on a 250-mesh sieve. The water content of the finally obtained mud is 33%, and the outflow time in the Engle viscometer is 40s, and the natural settlement distance in the 10ml graduated cylind...

Embodiment 3

[0037] Repeat the first step in Example 1.

[0038] The second step: ingredients, ball milling. Take waste porcelain 0 # To replace the sand and gravel raw materials in the ingredients, waste porcelain accounts for 40% of the total mass of the basic material, sand and gravel account for 40% of the total mass of the basic material, and clay accounts for 20% of the total mass of the basic material. Add 0.4% sodium silicate, 0.2% sodium tripolyphosphate and 0.03% sodium carboxymethyl cellulose to the above basic materials respectively. Raw materials, ball stones and water are added in a mass percentage of 1:1.2:0.48. After mixing, ball mill and control The final fineness of the mud is 1.2% on a 250-mesh sieve. The water content of the finally obtained mud is 31%, the outflow time in the Engle viscometer is 36s, and the natural settlement distance in the 10ml graduated cylinder after 24h is 0.1ml.

[0039] The third step: granulation and molding. Spray granulate the slurry pre...

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Abstract

The invention discloses a method for recycling waste porcelain in porcelain tile production. The method comprises the steps of: firstly, manually crushing waste porcelain into porcelain pieces with sizes capable of allowing to enter a crusher, and further crushing the porcelain pieces by the crusher to obtain a product for later use; replacing gravel raw materials with waste porcelain, wherein the waste porcelain takes up 10-60% of total mass of basic materials, the gravels take up 20-70% of total mass of basic materials, and clay takes up 15-25% of total mass of basic materials; simultaneously adding deflocculants taking up 0.1-0.6% of total mass of the basic materials, and sodium carboxymethyl cellulose taking up 0.01-0.1% of total mass of the basic materials; ball-milling, pelletizing and aging the formula of porcelain tiles to obtain blanks; and conducting secondary distribution the blanks together with surface materials by taking the blanks as bed charge for producing the porcelain tiles, conducting dry pressing to obtain green bodies, drying the green bodies and putting the green bodies into a furnace for sintering. On the premise of ensuring the quality of the porcelain tiles, a scientific approach for treatment of waste porcelain is found, thus not only is the environment is protected, but also wastes are changed into valuables, and the cost of raw materials is reduced; and the method is beneficial to sustainable development of porcelain industry.

Description

technical field [0001] The invention relates to a method for utilizing solid waste in ceramic production, in particular to a method for reusing waste porcelain in porcelain brick production, and belongs to the technical field of comprehensive utilization of ceramic waste. Background technique [0002] Porcelain tiles are favored in the field of home and architectural decoration for their low water absorption, high strength, wear resistance, chemical corrosion resistance, and frost resistance, and their output is increasing year by year. Taking Guangdong Province as an example, the output of porcelain tiles in 2011 was about 2.3 billion square meters, an increase of about 41% over the previous year. However, after years of mining, high-quality ceramic raw materials around the company have gradually decreased, and they often need to be transported from far away places, resulting in increased production costs. [0003] Waste porcelain is a kind of solid waste produced in the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132
CPCY02P40/60
Inventor 王正旺饶平根黎友海李喜宏
Owner GUANGDONG TIANBI CERAMICS
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