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Environment-friendly type multifunctional granular high-efficiency ladle covering agent

A ladle covering agent and multi-functional technology, which is applied in the field of environment-friendly multifunctional granular high-efficiency ladle covering agent, can solve problems such as inability to meet, and achieve the effects of improving service life, reducing cooling, good dissolution and absorption

Inactive Publication Date: 2008-06-04
吕安明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ladle covering agent that above-mentioned technical scheme provides, although its composition is not identical, can accomplish to have certain thermal insulation performance and prevent the secondary oxidation of molten steel, but also can't satisfy the needs of the market, along with the development of science and technology, people The expected newer and better ladle covering agent appears

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Get 10 kilograms of CaO by the chemical composition of the ladle covering agent that the present invention provides, SiO 2 69 kg, MgO 9 kg, AL 2 o 3 7 kg, Fe 2 o 3 5kg is mixed and stirred into 100kg of ladle covering agent. After forming→drying→packaging, it becomes a finished product. When used, it is covered on the surface of molten steel, so that the molten steel surface does not leak red, and the slag layer does not crust, which plays the role of heat insulation. .

Embodiment 2

[0021] Get 18 kilograms of CaO, SiO by the chemical composition of the ladle covering agent that the present invention provides 2 46 kg, MgO 9 kg, AL 2 o 3 7 kg, Fe 2 o 3 5 kg, C (fixed) 15 kg, mixed and stirred to form 100 kg of ladle covering agent, after forming→drying→packaging, it will be a finished product. When used, it will be covered on the surface of molten steel, so that the molten steel surface will not leak red and the slag layer will not condense The shell acts as a heat insulator.

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PUM

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Abstract

The invention provides an environmental-friendly multifunctional grain-shaped high-efficiency ladle covering agent. The invention is characterized in that the chemical composition of the invention according to weight percentage is 5 to 20 of CaO, 36 to 72 of SiO2, 4 to 14 of MgO, 5 to 11 of Al2O3, 3 to 8 of Fe2O3, 0 to 20 of C (fixed) and residual quantity of H2O. The invention has the advantages of good extension, heat insulation and heat preservation, good slag adsorption performance, easy turnover, fast melting on steel liquid surface, no leakage of steel liquid surface, no incrustation of the slag layer, reducing the heat loss and temperature reduction of molten steel in ladle, good capability for dissolving and adsorbing sundries in the molten steel, improving the purity of the molten liquid, reducing the slagging of ladle mouth, being beneficial for slag removal and prolonging the service life of the ladle.

Description

technical field [0001] The invention relates to a ladle covering agent, in particular to an environment-friendly multifunctional granular high-efficiency ladle covering agent, which is an improvement on the composition of the existing ladle covering agent and belongs to the technical field of B22D11 / 111 in the international patent classification. Background technique [0002] Molten steel protection is one of the important links in the modern steelmaking industry, and plays an important role in improving the quality of steel and producing special steel. Since molten steel stays in the ladle for a long time during operation, the protection of molten steel in the ladle is an important part of the whole process of molten steel, which is directly related to avoiding secondary oxidation of molten steel, reducing temperature drop and improving the purity of molten steel. The early ladle molten steel protection mainly refers to the addition of a single molten steel protective agent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/111C21C7/076
CPCY02P10/20
Inventor 吕安明
Owner 吕安明
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