Slag-liquid separating agent for metallurgy, and preparation method thereof

A slag-liquid separation and slag-liquid technology, applied in metal processing equipment, manufacturing tools, casting equipment, etc., can solve the problems of continuous use, difficult to clean, affecting production efficiency, etc., to improve production efficiency, protect from falling off, and save energy. The effect of reducing consumption and production efficiency

Active Publication Date: 2020-01-31
郑州荣盛窑炉耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ladle and spheroidizing ladle are important devices in the metallurgical industry, which play an important role in storing and transferring molten iron. During the process of ironmaking and casting, molten iron and molten steel will corrode refractory materials such as ladle and spheroidizing ladle. and sticky slag, affecting the service life of ladle and spheroidizing ladle, and cannot be used continuously, affecting production efficiency
It is not easy to clean up after sticking slag, and it will also affect production efficiency, product quality and metal yield
However, there is currently no more effective auxiliary material that can alleviate the above situation

Method used

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  • Slag-liquid separating agent for metallurgy, and preparation method thereof
  • Slag-liquid separating agent for metallurgy, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A metallurgical slag-liquid separator, which is composed of fused magnesia, silicon carbide, alumina ultrafine powder, tabular corundum powder, and high-efficiency dispersant in the following percentages:

[0031] Fused magnesia powder: particle size 3-1mm 22%;

[0032] Granularity 1-0mm 12%;

[0033] Particle size <0.074mm 40%;

[0034] Silicon carbide powder: particle size 1-0mm 6%;

[0035] Particle size <0.074mm 11%;

[0036] Alumina ultrafine powder: particle size <0.001mm 3%;

[0037] Tabular corundum powder: particle size <0.005mm 6%;

[0038] The sum of the weight percentages of the above components is 100%,

[0039] In addition, a high-efficiency dispersant is added, and the added amount of the high-efficiency dispersant is 0.2% of the total weight of the above components.

[0040] Wherein, the MgO in the fused magnesia powder is not less than 98%, the SiO 2 Not higher than 0.6%, CaO not higher than 1.2%, Fe 2 O 3 Not higher than 0.6%, Al 2 O 3 not h...

Embodiment 2

[0047] A metallurgical slag-liquid separator, which is composed of fused magnesia, silicon carbide, alumina ultrafine powder, tabular corundum powder, and high-efficiency dispersant in the following percentages:

[0048] Fused magnesia powder: particle size 3-1mm 26%;

[0049] Granularity 1-0mm 15%;

[0050] Particle size <0.074mm 30%;

[0051] Silicon carbide powder: particle size 1-0mm 8%;

[0052] Particle size <0.074mm 9%;

[0053] Alumina ultrafine powder: particle size <0.001mm 6%;

[0054] Tabular corundum powder: particle size <0.005mm 6%;

[0055] The sum of the weight percentages of the above components is 100%,

[0056] In addition, a high-efficiency dispersant is added, and the added amount of the high-efficiency dispersant is 0.1% of the total weight of the above components.

[0057] Among them, MgO in fused magnesia powder is not less than 98%, SiO 2 Not higher than 0.6%, CaO not higher than 1.2%, Fe 2 O 3 Not higher than 0.6%, Al 2 O 3 not higher than...

Embodiment 3

[0064]A metallurgical slag-liquid separator, which is composed of fused magnesia, silicon carbide, alumina ultrafine powder, tabular corundum powder, and high-efficiency dispersant in the following percentages:

[0065] Fused magnesia powder: particle size 3-1mm 29%;

[0066] Granularity 1-0mm 10%;

[0067] Particle size <0.074mm 31%;

[0068] Silicon carbide powder: particle size 1-0mm 8%;

[0069] Particle size <0.074mm 15%;

[0070] Alumina ultrafine powder: particle size <0.001mm 5%;

[0071] Tabular corundum powder: particle size <0.005mm 2%;

[0072] The sum of the weight percentages of the above components is 100%,

[0073] In addition, a high-efficiency dispersant is added, and the added amount of the high-efficiency dispersant is 0.2% of the total weight of the above components.

[0074] Wherein, the MgO in the fused magnesia powder is not less than 98%, the SiO 2 Not higher than 0.6%, CaO not higher than 1.2%, Fe 2 O 3 Not higher than 0.6%, Al 2 O 3 not hi...

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Abstract

The invention relates to the technical field of auxiliary separating agents for metallurgy, and specifically discloses a slag-liquid separating agent for metallurgy. The slag-liquid separating agent for the metallurgy is prepared from the following components in percentage: 22%-36% of fused magnesite with a particle size of 3-1mm, 10%-15% of fused magnesite with a particle size of 1-0mm, 15%-40% of fused magnesite with a particle size of less than 0.074mm, 6%-8% of silicon carbide with a particle size of 1-0mm, 9%-18% of silicon carbide with a particle size of less than 0.074mm, 2%-6% of superfine aluminum oxide powder with a particle size of less than 0.001mm, 2%-6% of tabular corundum powder with a particle size of less than 0.005mm, and 0.08%-0.2% of external efficient dispersing agent.The slag-liquid separating agent for the metallurgy has the following advantages: the slag-liquid separating agent is high in adhesive force, low in rebound resilience, high in refractoriness, and ina non-sintered state in a state of holding high-temperature molten iron; and a molten iron ladle and a spheroidized ladle can be continuously used due to no bonded slag and adhering slag, so that a great effect is acted on energy conservation, consumption reduction and increasing for the production efficiency.

Description

technical field [0001] The invention relates to the technical field of metallurgical auxiliary separating agents, in particular to a metallurgical slag-liquid separating agent and a preparation method thereof. Background technique [0002] Hot metal ladle and spheroidizing ladle are important components in the metallurgical industry, and play an important role in storing and transferring molten iron. During the process of ironmaking and casting, molten iron and molten steel will erode the refractory materials of equipment such as ladle and spheroidizing ladle. And sticky slag, affecting the service life of the molten iron ladle and the spheroidizing ladle, and can not be used continuously, affecting the production efficiency. It is not easy to clean up after sticking slag, and it will also affect production efficiency, product quality and metal yield. However, there are currently no more effective auxiliary materials that can alleviate the above situation. SUMMARY OF THE ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/00C21C1/10B22D41/02
CPCC21C7/00C21C1/10B22D41/02
Inventor 楚科奇崔战涛
Owner 郑州荣盛窑炉耐火材料有限公司
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