Method for producing light-weight heat-insulating decorative ceramic plate by using solid waste in production and processing course of expanded pearlite

A technology for expanding perlite and solid waste, which is applied in the production and application of ceramic products and ceramic materials, and can solve the problems of extremely poor surface wear resistance and erosion resistance, high water absorption, and low flexural strength.

Inactive Publication Date: 2014-03-12
信阳方浩实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above products not only have the defects of high thermal conductivity, low flexural strength, low tensile strength, high water absorption, poor freeze-thaw resistance and post-resistance, but also have extremely poor decorative effects.
However, the existing lightweight ceramic tiles in the market not only do not have the basic properties of thermal insulation materials, but also have a firing temperature of up to 1250 degrees, a firing cycle of up to 120 minutes, and a thinner thickness within 16mm; Washability is also extremely poor

Method used

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  • Method for producing light-weight heat-insulating decorative ceramic plate by using solid waste in production and processing course of expanded pearlite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Mix by weight 66% of perlite micropowder, 20% by weight of expanded perlite micropowder, 10% by weight of bentonite, 2% by weight of limestone, 2% by weight of fluorite powder, 0.8% by weight of nonahydrate silica, 0.8% by weight Black silicon carbide, 0.2% by weight of sodium humate, 101.8% by weight of mineral raw materials are put into the aluminum-lined ball mill, and 55% by weight of water is added for wet ball milling. Among them, the fineness of the mud is controlled between 0.6-1% of the sieve of the million-hole sieve, the flow rate of the mud is controlled between 25-45 seconds of the coating four viscosity; More than 65% on the 60-mesh sieve, less than 30% on the 80-mesh sieve under the 60-mesh sieve, and less than 5% under the 80-mesh sieve; the moisture content of the powder is controlled between 6.5-7.5%; the dry strength of the green body is controlled at 0.95-1.2MPA. According to the above process system, after ball milling of raw materials, sieving of m...

Embodiment 2

[0042]Mix by weight 88% perlite micropowder, weight 8% bentonite, weight 2% limestone, weight 2% fluorite powder, weight 0.8% black silicon carbide, weight 1% sodium metasilicate, weight 0.6% Fluorite, 0.1% by weight of green body reinforcing agent, 0.2% by weight of sodium humate, and 0.1% by weight of sodium tripolyphosphate composed of 102.8% of the mineral raw materials are put into the aluminum-lined ball mill and 55% by weight of Water wet ball milling. Among them, the fineness of the mud is controlled between 0.6-1% of the sieve of the million-hole sieve, the flow rate of the mud is controlled between 25-45 seconds of the coating four viscosity; More than 65% on the 60-mesh sieve, less than 30% on the 80-mesh sieve under the 60-mesh sieve, and less than 5% under the 80-mesh sieve; the moisture content of the powder is controlled between 6.5-7.5%; the dry strength of the green body is controlled at 0.95-1.2MPA. According to the above process system, the water absorption...

Embodiment 3

[0044] Mix by weight 55% perlite fine powder, weight 24% expanded perlite fine powder, weight 12% black mud, weight 3% bentonite, weight 2% calcium carbonate, weight 4% fluorite, weight 0.2% Sodium humate, 0.1% by weight of sodium tripolyphosphate, 0.8% by weight of sodium metasilicate, and 0.12% by weight of reinforcing agent are composed of 101.1% of mineral raw materials by weight, which are put into a high-white and high-alumina liner inlaid ball mill for wet grinding , the ball stone is also high white high alumina ball stone. The water absorption rate is 0.25% and the bulk density is 442kg / m 3、 The modulus of rupture is 10.8MPa, the thermal conductivity is 0.076W / (m.k), and the combustion level is A1, which is an integrated ceramic plate for thermal insulation and decoration.

[0045] application notes

[0046] The invention relates to the technical field of heat preservation and decoration materials, especially the thermal conductivity produced by using the solid wa...

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Abstract

The invention provides a method for producing a light-weight heat-insulating decorative ceramic plate by using solid waste in the production and processing course of expanded pearlite. The light-weight heat-insulating decorative ceramic plate is prepared from the following materials: 25-100 percent of pearlite micro powder, 0-80 percent of expanded pearlite micro powder, 0-25 percent of Guangdong black clay, 0-10 percent of limestone, 0-5 percent of fluorite, 0.1-2 percent of black silicon carbide, 0-15 percent of bentonite, 0-5 percent of anhydrous sodium metasilicate, 0.1-0.5 percent of sodium humate and 0-1.0 percent of sodium tripolyphosphate. The batches are subjected to ball-milling and then slurry screening, slurry deironing, slurry aging, spray drying, powder aging, decorative distributing, dry-pressing forming, dry transporting and 900-1,050 DEG C oxidation burning are conducted to obtain the light-weight heat-insulating decorative integrated ceramic plate of which the water absorption is within 0.5%, the volume density is smaller than 500 kg/m<3>, the rupture modulus is more than 3.5 MPa, the heat conductivity is smaller than 0.08/(m/k) and the burning level is A.

Description

[0001] The invention relates to the field of thermal insulation building materials, in particular to a production method of light-weight thermal insulation decorative ceramic boards produced by using perlite micropowder and expanded perlite micropowder, which are solid wastes in the production and processing process of expanded perlite. Background technique [0002] On the one hand, the current inorganic thermal insulation materials include foamed concrete products, diatomite products, expanded perlite products, calcium silicate thermal insulation products and foam glass products. However, the above products not only have the defects of high thermal conductivity, low flexural strength, low tensile strength, high water absorption, freeze-thaw resistance and poor post-resistance, but also have extremely poor decorative effects. However, the existing lightweight ceramic tiles in the market not only do not have the basic properties of thermal insulation materials, but also have a f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B38/02
CPCY02P40/60
Inventor 陈延东
Owner 信阳方浩实业有限公司
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