Air blowing and slag removing spray gun for foundry ladle and preparation method thereof

A technology of ladle and spray gun, applied in the direction of manufacturing tools, ceramic molding machines, etc., can solve the problems of long cleaning time and incomplete cleaning of iron slag, and achieve the effect of preventing spalling and damage, improving thermal shock stability and high activity.

Inactive Publication Date: 2016-08-03
北京利尔高温材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an air blowing slag removal spray gun for ladle and a preparation method thereof, which solves the problems of long cleaning time of iron slag after desulfur

Method used

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  • Air blowing and slag removing spray gun for foundry ladle and preparation method thereof

Examples

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Embodiment 1

[0071] A kind of air blowing slag removing spray gun for ladle, its raw material comprises the following components by weight:

[0072] Al with a particle size of 5-3mm 2 o 3 20 parts of super-grade alumina particles with a content greater than 88%;

[0073] 40 parts of andalusite particles, including 25 parts of particle size 3-1mm and 15 parts of particle size 1-0mm;

[0074] 10 parts of fused white corundum fine powder with a particle size of 320 mesh;

[0075] 10 parts of 60 sintered mullite with a particle size of 200 mesh;

[0076] α-Al with a particle size of 3-5 microns 2 o 3 6 parts of micro powder;

[0077] Particle size 180 mesh 97SiC5 parts;

[0078] The particle size is ≤5μm silica powder (in which α-Al 2 o 3 Micropowder size distribution curve is bimodal structure) 3 parts;

[0079] 0.1 part of explosion-proof fiber with a length of 4mm (water-soluble, melting temperature is 70°C);

[0080] Water reducing agent (ADS 3 )0.5 copies;

[0081] Calcium al...

Embodiment 2

[0092] A kind of air blowing slag removing spray gun for ladle, its raw material comprises the following components by weight:

[0093] 25 parts of special-grade alumina particles with a particle size of 5-3mm and a content of 88%-90%;

[0094] 40 parts of andalusite particles, including 25 parts of particle size 3-1mm and 15 parts of particle size 1-0mm;

[0095] 10 parts of fused white corundum fine powder with a particle size of 320 mesh;

[0096] 5 parts of 60 sintered mullite with a particle size of 200 mesh;

[0097] α-Al with a particle size of 3-1 microns 2 o 3 6 parts of micro powder;

[0098] Particle size 180 mesh 97SiC3 parts;

[0099] Particle size ≤ 5μm silica powder (of which α-Al 2 o 3 Micropowder size distribution curve is bimodal structure) 3 parts;

[0100] 0.1 part of explosion-proof fiber with a length of 4mm (water-soluble, melting temperature is 70°C);

[0101] Water reducing agent (ADS 3 )0.5 copies;

[0102] Calcium aluminate cement with a par...

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Abstract

The invention relates to an air blowing and slag removing spray gun and a preparation method thereof. The spray gun comprises the following components in parts by weight: 35 to 95 parts of aggregate, 15 to 60 parts of grinding powder, 2 to 8 parts of calcium aluminate cement, and 0.2 to 3 parts of steel fiber. The provided spray gun can well resist the corrosion of molten iron and molten iron slag, and has the advantages of high thermal shock stability and good high temperature sintering property. Furthermore, refractory materials and inner steel pipe are firmly combined, during the using process, phenomenon of breaking and peeling is reduced, and the corrosion of molten iron slag is relieved.

Description

technical field [0001] The invention relates to the technical field of spray gun refractory materials for ladles, in particular to an air blowing slag removal spray gun for ladles and a preparation method thereof. Background technique [0002] In the process of molten iron pretreatment, an important task is ladle slag removal, that is, to remove the products of the reaction between desulfurizer and impurities in molten iron, so as to improve the purity of molten iron and facilitate subsequent smelting of special steel types. The conventional slag removal operation is to use the slag removal machine to remove the iron slag on the surface of the ladle after tilting the ladle. This operation is difficult, and the iron slag inside the iron ladle cannot be cleaned cleanly. The long operation time leads to a large temperature drop of the molten iron. , In addition, the loss of molten iron during slag removal can reach 5kg / ton. In recent years, with the production capacity process...

Claims

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Application Information

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IPC IPC(8): C04B35/66B28B1/14
CPCB28B1/14C04B35/66
Inventor 赵冉张晓波万小宝丁海瑞刘丽曹仁峰赵现华范玉龙刘美荣车晓梅
Owner 北京利尔高温材料股份有限公司
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