Ramming material

A technology of ramming material and aggregate, which is applied in the field of fused zirconia ramming material, can solve the problems of production and sales without zirconia ramming material, and achieve the effects of good chemical stability, low production cost and easy molding

Inactive Publication Date: 2012-12-19
SANXIANG ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no production and sales of zirconia ramming materials in the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] Example 1: The components and weight percentages of the ramming material are: 60 parts of aggregate, 40 parts of powder, 2 parts of binder, and 10 parts of additive; the composition of the aggregate is fused semi-stable zirconia particles , 30 parts with a particle size of 0.088-10mm, 30 parts with a particle size of 10-25mm; the composition of the powder is fused semi-stable zirconia powder, 20 parts with a particle size of 2000-500 mesh, and a particle size of 8000-2000 The purpose is 20 parts; the binding agent is aluminum dihydrogen phosphate solution with a concentration of 60%; the additive is a mixture of zirconium-containing silica fume, carboxymethyl cellulose and yellow dextrin.

[0028] Aluminum dihydrogen phosphate solution with a concentration of 60% is a commonly used binder for refractory materials. Its advantage is that its strength can be maintained from low temperature to high temperature, and it is more suitable as a binder for difficult-to-sinter mate...

example 2

[0032] Example 2: The components and weight percentages of the ramming material are: 80 parts of aggregate, 20 parts of powder, 15 parts of binder, and 0.5 part of additive; A mixture of stabilized zirconia particles, 30 parts of which have a particle size of 0.088-10 mm, and 50 parts of which have a particle size of 10-25 mm; A mixture of zirconium acid powder and zircon powder, wherein the fused semi-stable zirconia powder has a particle size of 2000-500 mesh, accounting for 10 parts, and other powders have a particle size of 8000-2000 mesh, accounting for 10 parts; the binder It is an aluminum dihydrogen phosphate solution with a concentration of 60%; the additive is a mixture containing zirconium silica fume, carboxymethyl cellulose and yellow dextrin.

[0033] After the above raw materials are prepared, they are mixed and processed into ramming material according to the following preparation process: first mix the aggregate, powder and additives of the ramming material ev...

example 3

[0035] Example 3: The components and weight percentages of the ramming material are: 40 parts of aggregate, 60 parts of powder, 10 parts of binder, and 5 parts of additive; the composition of the aggregate is fused semi-stable zirconia particles , 20 parts with a particle size of 0.088-10mm, 20 parts with a particle size of 10-25mm; the composition of the powder is fused semi-stable zirconia powder, 30 parts with a particle size of 2000-500 mesh, 8000-2000 The purpose accounts for 30 parts; the binding agent is aluminum dihydrogen phosphate solution with a concentration of 60%; the additive is a mixture containing zirconium silica fume, carboxymethyl cellulose and yellow dextrin.

[0036] After the above-mentioned raw materials are prepared, they are mixed and processed into ramming material according to the following preparation process: first, the aggregate, powder and additives of the ramming material are mixed evenly, and then the aluminum dihydrogen phosphate solution with...

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Abstract

The invention relates to a zirconium oxide ramming material, in particular to an electrically fused zirconium ramming material. The electrically fused zirconium ramming material comprises aggregates, powder materials, a binding agent and an additive. The electrically fused zirconium ramming material is characterized by comprising the following components in parts by weight: 40-80 parts of the aggregates, 20-60 parts of the powder materials, 2-15 parts of the binding agent and 0.5-10 parts of the additive, wherein the sum of the aggregates and the powder materials is 100 parts; each aggregate comprises the components of one or two of a desilication zirconium granule and an electrically fused zirconium granule and has the granularity is 0.088-25 mm; each powder material comprises the components of one or more of desilication zirconium powder, electrically fused zirconium powder, zirconium silicate powder and zircon powder and has the granularity is 8000-500 meshes; the binding agent is an aluminium dihydrogen phosphate solutions with the concentration of 60 percent; and the additive is a mixture of zirconium-containing silica fume, carboxymethyl celluloses and yellow dextrin. The electrically fused zirconium ramming material has the advantages of excellent chemical stability, thermal shock stability, oxidation resistance, scour resistance, higher strength, low production cost, stable product property and easiness in forming without pollution.

Description

technical field [0001] The invention relates to an unshaped refractory material, in particular to a zirconia ramming material, especially a fused zirconia ramming material. Background technique [0002] The ramming material is made up of a high proportion of granular materials and a very low proportion of binders and other additives, even all of which are composed of granular and powdery materials, and are bulk materials that need to be constructed by strong ramming. Ramming materials are widely used in metallurgy, building materials, non-ferrous metal smelting, chemical industry, machinery and other manufacturing industries. They are mainly used in medium and high temperature parts of industrial furnaces, such as blast furnace iron trenches, electric arc furnace melting covers, furnace linings, and smelting furnace repairs. Or it is inconvenient to pour the parts of the construction. The existing ramming material varieties mainly include silicon, corundum, magnesium, magne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 范圣华叶旦旺韩双林朱忠雄吴纯桥
Owner SANXIANG ADVANCED MATERIALS
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