High-strength light foam ceramic plate and manufacturing method thereof

A foamed ceramic plate and the technology of the production method are applied in the field of decorative insulation materials for exterior walls and building materials production, which can solve the problems of limited source of raw materials, complicated production process, large energy consumption, etc., and achieve low raw material prices and simple firing process , The effect of reducing investment costs

Inactive Publication Date: 2012-08-08
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Invention patent "ceramic brick with thermal insulation function and its preparation method (CN101003433A)", the firing temperature is 1120-1250°C, the firing time is 12-18 hours, which consumes a lot of energy; "tuff glazed foam ceramics Insulation decorative brick and its manufacturing process (CN101234907A)", the powder of the foam layer needs to be ground to a fineness of 180-200 mesh, which also consumes a lot of energy
[0008] In short, the existing products have high density, poor thermal insulation performance, high cost, limited source of raw materials, many production equipment, complex production process, time-consuming and energy-consuming, and pollute the environment

Method used

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  • High-strength light foam ceramic plate and manufacturing method thereof
  • High-strength light foam ceramic plate and manufacturing method thereof
  • High-strength light foam ceramic plate and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0025] Select 20% of sludge, 20% of construction waste, 10% of waste ceramic sheets, 5% of bentonite, 20% of waste glass, 18% of pottery clay, 1% of aluminum powder, and 5% of sodium bicarbonate. Stir evenly, pulverize to 80 mesh, add Animal protein whipping agent 1% and appropriate amount of water (being 12% of above-mentioned solid matter total amount), after crossing 20 mesh sieves and granulating, pack into the self-made corundum quality refractory combined mould, gently press and scrape off, the mold backing plate, mold The surface of the frame is sprayed with AL 2 o 3 , and then loaded into a resistance furnace and fired in three stages of 300°C, 700°C, and 1200°C, each fired for 30 minutes, and can be made into a bulk density of 0.5g / cm 3 Lightweight foam ceramic plate.

[0026] The lightweight foamed ceramic plate has a bulk density of 0.5g / cm 3 , the flexural strength is 20Mpa, the thermal conductivity is less than 0.1W / (m.k), the water resistance is good, it is im...

Embodiment approach 2

[0028] Select 20% of river and lake bottom mud, 20% of construction waste, 10% of waste ceramic chips, 10% of bentonite, 20% of waste glass, 14% of pottery clay, 0.5% of aluminum powder, 5% of sodium bicarbonate, stir evenly, and crush to 80 mesh , add 0.5% of animal protein foaming agent and appropriate amount of water (12% of the total amount of the above solids), pass through a 20-mesh sieve and granulate, then put it into a self-made corundum quality refractory mold and lightly press and scrape it flat. , The surface of the mold frame is sprayed with AL 2 o 3 , and then loaded into a roller kiln and fired in three stages of 250°C, 600°C, and 1190°C, fired for 30min, 40min, and 30min respectively, and can be made into a bulk density of 0.6g / cm 3 , Lightweight foamed ceramic plates with a compressive strength at room temperature of 20Mpa.

Embodiment approach 3

[0030] Select 15% of river and lake bottom mud, 21% of construction waste, 10% of waste ceramic chips, 13% of bentonite, 20% of waste glass, 10% of pottery clay, 5% of aluminum powder, and 5% of sodium bicarbonate. Stir evenly and crush to 80 mesh , add 1% of animal protein foaming agent and appropriate amount of water (10% of the total amount of the above solids), pass through a 20-mesh sieve for granulation, and then put it into a self-made corundum refractory mold with light pressure and scrape it flat. , The surface of the mold frame is sprayed with AL 2 o 3 , and then loaded into a porous pusher kiln and fired in three stages of 300°C, 600°C, and 1200°C, each fired for 30 minutes, and can be made into a bulk density of 0.6g / cm 3 The lightweight foamed ceramic board can float on the water for a long time, impervious to water for a long time, and has good frost resistance.

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Abstract

The invention discloses a high-strength light foam ceramic plate and a manufacturing method thereof, and belongs to the field of building material manufacturing. The ceramic plate comprises the following materials in percentage by weight: 10-30 percent of sludge/bottom mud, 20-30 percent of building waste, 15-25 percent of waste ceramic, 10-25 percent of waste glass, 5-15 percent of bentonite, 5-15 percent of kaolin, 0.5-5 percent of aluminum powder, 5-10 percent of sodium bicarbonate, 0.5-1.5 percent of animal albumen foaming agent and 9-16 percent (percentage of total amount of the solid matters) of water. The manufacturing method comprises the following steps of: mixing and crushing the main raw material; adding the animal albumen foaming agent and water; granulating; filling a granular material into a refractory combined mould; leveling; filling in a kiln; firing; and performing cold processing to produce a ceramic plate finished product. The high-strength light foam ceramic plate has the advantages of high product strength, small volume weight, fire proofing, excellent freeze proofing, long-term water proofing, readily available main raw material which basically comes from environmental solid waste, has a wide source and is low in cost and adoption of the animal albumen foaming agent of small using amount and wide source; the manufacturing process has the advantages of simplicity, high efficiency, energy conservation, environmental friendliness, no secondary pollution; and the high-strength light foam ceramic plate can be used as thermal insulation decorative materials, fire barriers and the like of exterior walls of buildings.

Description

technical field [0001] The invention relates to a building material, in particular to a decorative and thermal insulation material for exterior walls, and belongs to the technical field of building material production. Background technique [0002] Foamed ceramic board has light weight, good water resistance, fire retardant, small deformation coefficient, anti-aging, stable performance, good compatibility with wall base and plastering layer, good safety and stability, and can overcome the fear of open flames of organic materials. The Achilles heel of aging. However, most of the existing foamed ceramic boards use expensive ore and fine ceramics as the main raw materials, and the production cost is high and consumes a lot of resources. Secondly, the existing manufacturing process basically uses inorganic foaming agent to generate gas foaming at high temperature to make foamed ceramics. Due to the addition of components such as catalyst and molding binder, the complexity of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02B09B3/00
CPCY02W30/58
Inventor 余江刘建泉杨春孟庆铨
Owner SICHUAN UNIV
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