Production method of lightweight ceramic bricks

A production method and technology of ceramic bricks, applied in the production of ceramic materials, removal of solid waste, application, etc., can solve the problems of unexplained moisture permeability, high thermal conductivity, and poor insulation wall materials, etc.

Active Publication Date: 2011-11-23
FOSHAN SHI WAN YING BRAND CERAMICS CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this method is that it needs to use heat-resistant alloy molds for production in pusher kiln, tunnel kiln or shuttle kiln, and cannot be produced by naked firing in roller kiln.
Although the patent CN101565312A states that its bu

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Ingredients, the weight percentage of each component: 70% of polishing waste, 10% of waste powder and waste mud powder, 10% of waste kaolin, 5% of waste high-temperature sand, and 5% of recycled dust. Add 34% water to the raw materials, 0.48% water reducing agent, 0.12% reinforcing agent, and ball mill in the ball mill for 12-16 hours, the mud fineness is 0.8-1.0% (Million empty sieve), the water content is 32-34%, and the flow rate is 25-45 seconds , specific gravity 1.69-1.74g / cm 3 ; After the mud is stale and homogenized, remove iron, spray granulate, moisture 6-8%, after silo stale for 24 hours, molding, molding pressure 285bar, mold size 672mm×672mm, green body thickness 14mm, drying 45min, firing 70min, The oxidation heat preservation time is 15 minutes, and the foaming heat preservation time is 15 minutes. After firing, the size is 805mm×805mm, the thickness is 16.8mm, the linear expansion rate of the product is 19.8%, the water absorption rate is 5.0%, the spec...

Embodiment 2

[0034] Ingredients, the weight percentage of each component: 30% of polishing waste, 50% of waste base powder and waste mud powder, 10% of waste kaolin, 5% of waste high-temperature sand, and 5% of waste grinding block powder. Add 34% water to the raw materials, 0.48% water reducing agent, 0.12% reinforcing agent, and ball mill in a wet ball mill for 12-16 hours. 45 seconds, specific gravity 1.67-1.72g / cm 3 After the mud is stale and homogenized, remove iron, spray granulate, moisture 6-8%, after silo stale for 24 hours, molding, molding pressure 285bar, mold size 672mm×672mm, green body thickness 12mm, drying for 45min, firing for 80min, The firing temperature is 1195°C, the oxidation holding temperature is 1000±60°C, the oxidation holding time is 16 minutes, and the foaming holding time is 19 minutes. After firing, the size is 785mm×785mm, the thickness is 14.0mm, the linear expansion rate of the product is 16.7%, the water absorption rate is 5.0%, the specific gravity is 0...

Embodiment 3

[0036] Ingredients, the weight percentage of each component: 15% of polishing waste residue, 40% of waste sludge, 5% of waste kaolin, 5% of waste high-temperature sand, and 35% of urban sludge. Add 34% of water to the raw materials, 0.68% of water reducing agent, and 0.12% of strengthening agent. Ball milling in wet ball mill for 12-16 hours, mud fineness 0.8-1.0% (Multi-air sieve), moisture 33-35%, flow rate 25-45 seconds, specific gravity 1.67-1.72g / cm 3 After the mud is stale and homogenized, remove iron, spray granulate, moisture 6-8%, after silo stale for 24 hours, molding, molding pressure 245bar, mold size 672mm×672mm, green body thickness 10mm, drying 50min, firing 90min, The firing temperature is 1205°C, the oxidation holding temperature is 1000±60°C, the oxidation holding time is 22 minutes, and the foaming holding time is 15 minutes. After firing, the size is 862mm×862mm, the thickness is 13.mm, the linear expansion rate of the product is 28.5%, the water absorptio...

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Abstract

The invention discloses a method for producing lightweight ceramic bricks by comprehensively utilizing solid wastes from ceramics factories and sludge produced in sewage treatment plants as the raw materials. The method comprises the steps of: subjecting waste residues from polishing, fragmentation treated waste polished tiles, waste blank powder and waste mud powder reclaimed from blank making, recovered dust from dedusters, drainage silt from ceramics factories, fragmented waste abrading blocks for polishing, waste glazes, coal sintering residuals, waste kaolin, waste high temperature sand, sludge, a water reducer and a reinforcing agent to ball milling, deironing through sieving, decaying and homogenization in a wet bowl mill, spray drying the slurry into particle powder, then pressing and sintering the particle powder into bricks. By comprehensively utilizing solid wastes from ceramics factories and sludge produced in sewage treatment plants, the method of the invention reaches the purpose of waste recycling and realizes the effect of zero emission of architectural ceramics and polished tile factories.

Description

technical field [0001] The invention relates to a production method of light ceramic bricks, in particular to a method for comprehensively utilizing solid waste from ceramic factories and sludge produced by sewage treatment plants as raw materials to produce light ceramic bricks. Background technique [0002] With the rapid development of social economy and ceramic industry, ceramic industry waste is increasing day by day. It not only puts great pressure on the urban environment, but also limits the development of urban economy and the sustainable development of ceramic industry. It can be seen that the treatment and utilization of ceramic industry waste Very important. At present, the treatment and utilization of ceramic industry waste in my country is relatively low, and funds are in short supply, resulting in a large amount of waste slag occupying cultivated land and polluting water and air. In addition, with the operation of sewage treatment plants in cities, especially...

Claims

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Application Information

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IPC IPC(8): C04B35/622C04B33/00C04B33/132B09B3/00
CPCY02P40/60
Inventor 林伟路明忠韩复兴严小虎
Owner FOSHAN SHI WAN YING BRAND CERAMICS CO LTD
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