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Production method of environment-friendly light-weight building ceramic

A technology of architectural ceramics and production methods, applied in the field of architectural ceramics, can solve the problems of increased consumption of natural gas, high firing temperature, and long firing cycle, and achieve the effects of resource saving, low melting temperature, and low water absorption

Inactive Publication Date: 2017-05-31
GUANGDONG GELAISI CERAMICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. The production of lightweight architectural ceramics in the traditional method mainly adopts wet technology for ball milling, powder making and other processes, although the Chinese Patent Publication No. CN104311105A "A Green and Environmentally Friendly Foam Ceramic Product and Its Technology" also uses dry powder milling to make foam ceramics , but its firing temperature is high, the firing cycle is long, the corresponding increase in natural gas consumption, waste of energy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) According to the mass fraction, take 60 parts of polished brick waste residue, 20 parts of waste glass powder, 20 parts of black mud, and 0.2 part of silicon carbide, mix them evenly by dry method, and loosely spread them in the heat-resistant steel mold of the shuttle kiln.

[0035] (2) According to the heating curve of 0-200°C, heating up for 20 minutes, 200-500°C for 40 minutes, 500-800°C for 60 minutes, 800-1125°C for 60 minutes, and holding at 1125°C for 60 minutes, the foamed ceramics are fired.

[0036] The prepared lightweight building ceramics of the present embodiment, its chemical composition: SiO 2 68.19wt%, AL 2 o 3 13.4 wt%, Fe 2 o 3 0.52 wt%, TiO 2 0.19 wt%, CaO 1.62 wt%, MgO 5.27 wt%, K 2 O is 1.21 wt%, Na 2 O is 4.31 wt%, IL (decrement) is 5.29%, water absorption is 0.05%, and bulk density is 0.7g / m 3 , flexural strength 0.6MPa, compressive strength 0.8MPa, appearance color: white, good acid resistance and thermal shock resistance.

Embodiment 2

[0038] (1) According to the mass fraction, take 60 parts of polished brick waste residue, 20 parts of cinder, 10 parts of black mud, 10 parts of glass powder, and 0.2 part of silicon carbide, mix them evenly by dry method, and loosely spread them on the heat-resistant steel mold of the shuttle kiln Inside.

[0039] (2) According to the heating curve of 0-200°C, heating up for 20 minutes, 200-500°C for 40 minutes, 500-800°C for 60 minutes, 800-1125°C for 60 minutes, and holding at 1125°C for 60 minutes, the foamed ceramics are fired.

[0040] The prepared lightweight building ceramics of the present embodiment, its chemical composition: SiO 2 60.5 wt%, AL 2 o 3 20.3wt%, Fe 2 o 3 0.62wt%, TiO 2 0.23wt%, CaO 0.75wt%, MgO 4.4wt%, K 2 O is 2.1wt%, Na 2 O is 3.46wt%, IL is 7.64%, water absorption is 0.05%, and bulk density is 0.7g / m 3, Flexural strength 0.2MPa, compressive strength 0.3MPa, appearance color: dark brown.

Embodiment 3

[0042] (1) According to the mass fraction, take 55 parts of polished brick waste residue, 25 parts of glass powder, 20 parts of black mud, and 0.2 part of silicon carbide, mix them evenly by dry method, and loosely spread them in the heat-resistant steel mold of the shuttle kiln.

[0043] (2) According to the heating curve of 0-200°C, heating up for 20 minutes, 200-500°C for 40 minutes, 500-800°C for 60 minutes, 800-1125°C for 60 minutes, and holding at 1125°C for 60 minutes, the foamed ceramics are fired.

[0044] The prepared lightweight building ceramics of the present embodiment, its chemical composition: SiO 2 68.76wt%, AL 2 o 3 13.31 wt%, Fe 2 o 3 0.51 wt%, TiO 2 is 0.22 wt%, CaO is 1.8 wt%, MgO is 4.43 wt%, and K 2 O is 1.16 wt%, Na 2 O is 4.47 wt%, IL is 5.34%, water absorption is 0.05%, and bulk density is 0.7g / m 3 , Flexural strength 0.8MPa, compressive strength 0.9MPa, appearance color: white.

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Abstract

The invention relates to a production method of an environment-friendly light-weight building ceramic. The production method comprises the following steps: a. uniformly mixing polished brick waste residues generated by producing light-weight building ceramics, a reinforcer, an adhesive and a foaming agent by a dry process according to the proportion; b. loosely spreading the powder in a shuttle kiln with the thickness of 20-30mm, and shaving; and c. carrying out cold-working treatment on the prepared light-weight ceramic in the shuttle kiln by natural cooling so as to satisfy the production requirements. The spray tower granulation procedure is reduced to provide a light-weight building ceramic production method which has the advantages of energy saving, environment friendliness and higher production efficiency.

Description

technical field [0001] The invention relates to the field of building ceramics, in particular to a production process of environment-friendly lightweight building ceramics. Background technique [0002] The ceramic industry is a "big water user". For the production of wall and floor tiles, the wet ball milling and spray granulation processes commonly used at present consume a lot of water and energy. Under the constraints of the country's increasingly strict energy-saving and emission-reduction policies, dry powder milling has gradually entered the field of vision of ceramic enterprises and upstream suppliers, and has attracted more and more attention from the industry. [0003] Because polished tiles need to go through pre-grinding, fine polishing, rough polishing, scraping, and post-grinding processes during the polishing process, resulting in a large amount of polished tile waste, and the waste residues of pre-grinding, post-grinding, and scraping processes, In the prior...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/06C04B38/02C04B33/132C04B33/13C04B33/135C04B33/32B28C1/16B28B13/02
CPCB28B13/02B28C1/16C04B33/13C04B33/131C04B33/132C04B33/1324C04B33/135C04B33/32C04B38/02C04B38/068C04B2235/77C04B2235/96C04B2235/9607C04B38/0067Y02P40/60
Inventor 叶德林简润桐付亚玲
Owner GUANGDONG GELAISI CERAMICS
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