Preparation method of slag conglomeration agent for converter refining

The technology of converter refining and slag-aggregating agent is applied in the field of preparation of slag-aggregating agent for converter refining, which can solve the problems of affecting the consumption index of iron and steel materials, long slag removal time, loss of molten iron, etc. The effect of reducing the number of slag and reducing the iron loss of slag removal

Inactive Publication Date: 2015-10-07
万燕杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, it takes a long time to remove slag. During the process of removing slag, a large amount of molten iron is lost along with the slag, and the loss of molten iron is serious, which directly affects the output and consumption indicators of steel materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] raw material:

[0017] Chromium metaborate 10%, calcium phosphate 30%, perlite 20%, petalite 20% and colemanite 20%

[0018] 1) Crushing chromium metaborate, calcium phosphate, perlite, petalite and colemanite;

[0019] 2) Crushing, the crushed particle size is 30 mesh to 80 mesh;

[0020] 3) Ingredients, mix the above materials;

[0021] 4) Stir well, add potassium chloride 1%~5% and stir for 8 minutes;

[0022] 5) Testing and packaging.

[0023] The result of the converter refining of the embodiment of the present invention in Baoshan Iron and Steel Co., Ltd. is that the iron loss in the slag is 0.3 kg per ton of iron, which is more than 50% higher than that of ordinary products.

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Abstract

The invention relates to a preparation method of a slag conglomeration agent for converter refining. The preparation method comprises the following steps: (1) crushing the following materials in percentage by weight: 10-14% of chromium metaborate, 30-35% of calcium phosphate, 16-20% of perlite, 16-20% of petalite and 15-25% of colemanite; (2) smashing, wherein the particle size of smashing is 30-80 meshes; (3) preparing materials, namely mixing the materials together; (4) stirring uniformly, adding 1-5% of potassium chloride, and stirring for 8 minutes; and (5) detecting and packaging. The steel slag conglomeration agent prepared by the method provided by the invention realizes easy slag conglomeration and deslagging, thereby reducing slugging-off iron losses fundamentally.

Description

technical field [0001] The invention relates to a preparation method of a slagging agent for converter refining. Background technique [0002] my country has become the largest producer of steel in the world, and its steel output is more than the combined output of the United States, Japan, France, Germany, Canada and other 8 countries. But on the whole, the production process, equipment and technical level of my country's iron and steel industry are relatively backward, so that there is a certain gap between domestic iron and steel products in terms of product structure, performance and variety compared with foreign advanced steel manufacturing countries. China's steel production capacity ranks first in the world. On the other hand, some high-quality steel still relies on imports. What is especially important is that due to the relatively backward production technology, equipment and management, there is a big gap in the production material consumption and energy consumptio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C1/00
Inventor 万燕杰
Owner 万燕杰
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