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Environment-friendly foamed ceramic insulation plate prepared by utilizing electrolytic manganese residues and preparation method thereof

A technology of foaming ceramics and electrolytic manganese slag, which is applied in the production and application of ceramic products and ceramic materials, and can solve the problems of foaming ceramics without electrolytic manganese slag tailings and waste slag, achieving high utilization rate and increased added value Effect

Active Publication Date: 2016-05-04
SAFECLEEN TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there are no relevant research reports on the use of electrolytic manganese slag tailings as a preparation of foamed ceramics

Method used

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  • Environment-friendly foamed ceramic insulation plate prepared by utilizing electrolytic manganese residues and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Add 30wt% electrolytic manganese slag, 35wt% potassium albite feldspar, 25% kaolin, 10% talcum powder, plus 0.05% activated carbon powder, 0.5% green silicon carbide micropowder, add water ball mill, ball: material : Water (mass ratio) was 2:1:1, ball milled for 15min, and the rotating speed was 500rpm. The ground pulp is transferred to the drying equipment, dried at 101°C for 5 hours, then heated to 150°C for 2 hours, and the obtained dry powder is rolled and pressed and directly filled into a refractory sagger mold of a fixed size and then calcined in a kiln. The inner wall of the sagger is paved with refractory fiber paper in advance to prevent the high-temperature melt from sticking to the mold. The refractoriness of the refractory fiber paper is above 1200°C and the thickness is about 1mm. The mold enters the kiln, starts from 25°C at a heating rate of 15°C / min to 1000°C, and keeps at 1000°C for 50 minutes, at a heating rate of 5°C / min to 1200°C, and at 1200°C for ...

Embodiment 2

[0032] Add 45wt% of electrolytic manganese slag, 25wt% of potassium albite feldspar, 25% of kaolin, 5% of talc, plus 0.08% of coal powder and 1.0% of green silicon carbide micropowder into water ball mill, ball: material : Water (mass ratio) is about 2.5:1:1.5, ball milling for 50min, rotating speed 400rpm. The ground pulp is transferred to the drying equipment, dried at 105°C for 3 hours, then heated to 145°C for 3 hours, and the obtained dry powder is rolled and pressed and directly filled into a refractory sagger mold of a fixed size and then calcined in a kiln. The inner wall of the sagger is paved with refractory fiber paper in advance to prevent the high-temperature melt from sticking to the mold. The refractoriness of the refractory fiber paper is above 1200°C and the thickness is 2mm. The mold enters the kiln, starting from 200°C at a heating rate of 25°C / min to 1000°C, and holding at 1000°C for 80 minutes, at a heating rate of 8°C / min to 1200°C, and holding at 1200°C ...

Embodiment 3

[0034] Add water ball mill to the ingredients composed of 65wt% electrolytic manganese slag, 20wt% potassium albite feldspar, 10% kaolin, 5% talcum powder, 0.10% coke, 1.5% silicon nitride micropowder, ball: material: water (Mass ratio) is about 3:1:2, ball milling 120min, rotating speed 300rpm. The ground pulp is transferred to the drying equipment, dried at 110°C for 2 hours, then heated to 140°C for 5 hours, and the obtained dry powder is rolled and pressed and directly filled into a refractory sagger mold of a fixed size and then calcined in a kiln. The inner wall of the sagger is covered with refractory fiber paper in advance to prevent the high-temperature melt from sticking to the mold. The refractoriness of the refractory fiber paper is above 1200°C and the thickness is about 3mm. The mold enters the kiln, starts from 500°C at a heating rate of 35°C / min to 1000°C, and keeps at 1000°C for 100 minutes, at a heating rate of 10°C / min to 1200°C, and at 1200°C for 50 minutes...

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Abstract

The invention belongs to the field of industrial solid waste resource comprehensive utilization and particularly relates to an environment-friendly foamed ceramic insulation plate prepared by utilizing electrolytic manganese residues and a preparation method thereof. The foamed ceramic insulation plate is prepared from the following raw materials in percentage by mass: 30-65 percent of electrolytic manganese residues, 20-35 percent of sodium-potassium feldspar, 10-25 percent of kaolin, 5-10 percent of talc powder, 0.5-1.5 percent of desoxidant and 0.05-0.10 percent of a reducing agent. According to the foamed ceramic insulation plate, industrial waste residues electrolytic manganese residues are used as a main raw material, resource utilization for manganese residue waste can be realized, and the electrolytic manganese residues have high utilization and high additional value. The foamed ceramic insulation plate prepared by the method has a fine and uniform closed-cell structure, and has the excellent characteristics of light weight, heat insulation, sound isolation, flame retardance, corrosion resistance and the like.

Description

technical field [0001] The invention belongs to the field of comprehensive utilization of industrial solid waste resources, and in particular relates to an environment-friendly foamed ceramic insulation board prepared by using electrolytic manganese slag and a preparation method thereof. Background technique [0002] Electrolytic manganese slag is a kind of industrial waste produced by acid leaching process in the process of industrial production of manganese metal, which belongs to production waste. A large amount of stacking of electrolytic manganese slag not only occupies land, but also causes harm to soil, water and atmosphere. The dam failure of the tailings pond also seriously endangers the safety of surrounding residents. Therefore, the resource utilization of manganese slag waste is an imminent problem. [0003] At present, the comprehensive utilization of electrolytic manganese slag in my country is still in its infancy, and related applications are mainly concent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B33/138C04B41/86
CPCC04B38/02C04B41/009C04B41/504C04B38/0087C04B33/138Y02P40/60
Inventor 罗学维石朝军陈益人赵皇刘啸李露露马彩凤
Owner SAFECLEEN TECH
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