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Method for preparing foamed ceramic insulation board by waste glass ceramic wafer

A technology of foam ceramics and waste glass, applied in ceramic products, applications, household appliances, etc., can solve the problems of high cost, complex process, difficult continuous manufacturing, etc., and achieve the effect of resource saving, simple preparation process and good stability

Active Publication Date: 2014-08-13
ANSHENG SCI & TECH DEP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the defects of high cost, complex process and difficulty in continuously manufacturing large-sized porous ceramic foam insulation materials in the prior art, and provides a method for preparing foam ceramic insulation boards by using waste glass ceramic sheets

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing a foamed ceramic insulation board by using waste glass ceramic sheets, comprising the following steps:

[0027] (1) Rinse the collected waste glass-ceramic sheets with clean water, then put them into an oven for drying, take them out and immediately put them into a ball mill for crushing, control the ratio of grinding balls and glass-ceramic sheets to 2:1, and mill for 23 hours. Make the fineness ≤100um;

[0028] (2) Mix waste glass and ceramic powder, fly ash, slag, coal gangue, ceramic tailings, foaming agent, and modifier in a ratio of 30:12:5:15:35:2.2:1.3 in parts by mass , make a mixture and put the mixture into a ball mill for wet grinding and mixing to form a mixed slurry;

[0029] Described blowing agent is to select carbon black, calcium carbonate, graphite for use; Described modifying agent is sodium fluosilicate;

[0030] (3) The mixed mud is granulated by a pressure spray dryer, the outlet temperature is controlled at 93°C, and the ...

Embodiment 2

[0033] A method for preparing a foamed ceramic insulation board by using waste glass ceramic sheets, comprising the following steps:

[0034] (1) Rinse the collected waste glass-ceramic sheets with clean water, then put them into an oven for drying, take them out and immediately put them into a ball mill for crushing, control the mass ratio of grinding balls and glass-ceramic sheets to 2.2:1, and ball mill for 26 hours , making the fineness ≤100um;

[0035] (2) Mix waste glass and ceramic powder, fly ash, slag, coal gangue, ceramic tailings, foaming agent, and modifier in a ratio of 33:12:6:10:30:2:1.1 in parts by mass , make a mixture and put the mixture into a ball mill for wet grinding and mixing to form a mixed slurry;

[0036] Described foaming agent is carbon black, aluminum silicon carbonate, calcium carbonate, dolomite powder; Described modifying agent is barium sulfate;

[0037] Wet grinding is to use alumina balls as grinding media, and the mass of grinding balls, ...

Embodiment 3

[0041] A method for preparing a foamed ceramic insulation board by using waste glass ceramic sheets, comprising the following steps:

[0042] (1) Rinse the collected waste glass-ceramic sheets with clean water, then put them into an oven for drying, take them out and immediately put them into a ball mill for crushing, control the mass ratio of grinding balls and glass-ceramic sheets to 2:1, and mill for 22 hours , making the fineness ≤100um;

[0043] (2) Mix waste glass and ceramic powder, fly ash, slag, coal gangue, ceramic tailings, foaming agent, and modifier in a ratio of 40:13:7:18:25:1.8:1.5 in parts by mass , make a mixture and put the mixture into a ball mill for wet grinding and mixing to form a mixed slurry;

[0044] Described blowing agent is manganese dioxide; Described modifying agent is ethylene diammonium salt, sodium carbonate;

[0045] Wet grinding is to use alumina balls as grinding media, and the quality of the balls, mixture and water is 2.1:1:0.7, and th...

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PUM

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Abstract

The invention discloses a method for preparing a foamed ceramic insulation board by a waste glass ceramic wafer, belonging to the field of preparation technology of the foamed ceramic insulation board. The method comprises the steps of: washing the waste glass ceramic wafer with clear water, drying and grinding by ball milling to obtain waste glass ceramic powder with the fineness less than or equal to 100mu m; mixing the waste glass ceramic powder, pulverized fuel ash, furnace slag, coal gangue, ceramic tailings, foaming agent and modifying agent according to the mass ratio of (30-40):(10-15):(5-7):(10-18):(25-35):(1.8-2.2):(1.1-1.5); putting the mixture into a ball grinding mill, carrying out wet grinding and evenly mixing to form mixed slurry; drying by a pressure type spray granulation dryer and putting the dried product into a foaming refractory mould coated with aluminum oxide; heating to 1120-1150 DEG C in a heating furnace; and finally, annealing, cooling and cutting to obtain the foamed ceramic insulation board. The method is low in production cost and simple in technology, and can be used for continuously preparing the porous foamed ceramic insulation board with large size; and the product is good in performances.

Description

technical field [0001] The invention belongs to the technical field of preparation of foamed ceramic thermal insulation materials, and relates to a method for preparing building thermal insulation materials by using waste materials, in particular to a method for preparing foamed ceramic thermal insulation boards by using waste glass ceramic sheets. Background technique [0002] With the development of my country's national economy, new wall materials in the construction industry are facing the challenge of replacement. In the "National Economic and Social Development 'Twelfth Five-Year' Plan and 2015 Vision Outline", building energy conservation and waste utilization have been listed important industry for the country. In recent years, my country's residential buildings have entered a period of large-scale construction, and wall materials account for 70% of building materials, and their demand has greatly increased. [0003] Faced with the use of such large-scale wall energy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/06C04B35/00C04B35/622
Inventor 李宏伟贾志才
Owner ANSHENG SCI & TECH DEP
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