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Method for preparing high stone powder mixing quantity baked brick

A technology for sintering bricks and stone powder, which is used in the manufacture of tools, ceramic products, paving surfaces paved with prefabricated blocks, etc. Low cost and improved operability

Inactive Publication Date: 2010-03-17
周立忠 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of the existing stone powder sintering masonry powder, such as low dosage of masonry powder and too strict requirements on raw materials, and to provide a method for preparing high stone powder content sintering bricks by adding adhesives and sintering aids by using the existing brick making technology. Brick method, and a preparation process applicable to different types of waste rock powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: The sintered brick of the present invention is composed of stone powder and sintering aid, and the weight percentage of each component is as follows:

[0032] Stone powder: 95%

[0033] Sintering aid: 5%

[0034] Stone powder is the waste produced in the production process of stone processing enterprises. Stone powder with a particle size of ≤0.05mm accounts for 20%, and particles with a particle size of 0.05mm-0.5mm account for 50%. 30% of the particle size is between 0.5mm and 1.5mm.

[0035] The sintering aid is a synthetic bismuth silicate with a particle size of ≤0.05mm.

[0036] Add 3% polyvinyl acetate aqueous solution to the mixed powder prepared according to the above proportion, and the quality of the polyvinyl acetate aqueous solution accounts for 5% of the total mass of the mixed powder.

[0037] A method for making a sintered brick as described above, its implementation steps are as follows:

[0038] (a) Weighing of raw materials: Weigh th...

Embodiment 2

[0044] Embodiment 2: The sintered brick of the present invention is composed of stone powder, sintering aids and additives, and the weight percentage of each component is as follows:

[0045] Stone powder: 90%

[0046] Sintering aid: 4%

[0047] Additives: 6%

[0048] Stone powder is the waste produced in the production process of stone processing enterprises. Stone powder with a particle size of ≤0.05mm accounts for 20%, and particles with a particle size of 0.05mm-0.5mm account for 50%. 30% of the particle size is between 0.5mm and 1.5mm.

[0049] The sintering aid is a mixture of magnesium oxide and potassium fluoride, the weight ratio of the two is 40%:60%, and the particle diameter is less than 0.02mm. The additive is bentonite and sea soil, the weight ratio of the two is 1:1, and the particle diameter is less than 0.5mm.

[0050] Add 4% polyvinyl alcohol aqueous solution to the mixed powder prepared according to the above proportion, and the quality of the polyvinyl ...

Embodiment 3

[0058] Embodiment 3: The sintered brick of the present invention is composed of stone powder, sintering aids and additives, and the weight percentage of each component is as follows:

[0059] Stone powder: 85%

[0060] Sintering aid: 3%

[0061] Additives: 12%

[0062] Stone powder is the waste produced in the production process of stone processing enterprises. Stone powder with a particle size of ≤0.05mm accounts for 20%, and particles with a particle size of 0.05mm-0.5mm account for 50%. 30% of the particle size is between 0.5mm and 1.5mm.

[0063] The sintering aid is a mixture of magnesium oxide and calcium oxide, the weight ratio of the two is 40%:60%, and the particle diameter is less than 0.02mm. The additive is bentonite and sea soil, the weight ratio of the two is 1:1, and the particle diameter is less than 0.5mm.

[0064] Add 4% polyvinyl alcohol aqueous solution to the mixed powder prepared according to the above proportion, and the quality of the polyvinyl alco...

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Abstract

The invention belongs to the field of building material, and relates to a method for preparing a high stone powder mixing quantity baked brick which comprises the raw materials by weight percent: 80-95% of stone powder, 2-5% of sintering auxiliary agent and 0-18% of additive. The solvent is water solution containing 2%-5% of binding agent. The preparation method comprises the steps of weighing theraw materials, mixing, molding, drying, sintering, cooling and the like. As the organic binding agent and the sintering auxiliary agent are added, the plasticity of the stone powder can be enhanced,and the formability and the sintering performance of adobe can be improved. The invention has the characteristics of simple technique, low cost, high stone powder demand, energy conservation, environmental protection, high strength of the baked brick and the like. The invention not only protects the environment and leads the recycle of the waste stone powder to step in the positive cycle of sustainable development, but also saves the land resources, thus being a useful attempt for replacing clay bricks.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a technology for producing sintered bricks with waste stone powder as the main raw material. Background technique [0002] Stone powder is the most important waste in the production process of stone processing enterprises. Nearly one million cubic meters of waste stone powder is produced every year in Jinjiang area of ​​Fujian Province alone. These waste stone powder not only occupy space but also pollute the environment, and have a serious impact on the production and life of local residents. At present, the reuse of waste rock powder has become an important bottleneck restricting the sustainable development of stone enterprises and local economy. At the same time, due to the fact that clay is the main raw material for traditional building bricks, a large number of farmlands have been destroyed and forest vegetation has been destroyed. At present, the coun...

Claims

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Application Information

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IPC IPC(8): E04C1/00E01C5/00E01C15/00E04B1/78B28B3/00C04B38/06
CPCY02A30/244
Inventor 周立忠黄勇
Owner 周立忠
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