Manufacturing method of molten iron desulfurizer-coating particulate magnesium

A technology of molten iron desulfurization and manufacturing method, applied in the field of molten iron desulfurizer, can solve the problems of unsatisfactory coating particle magnesium, no use, high production cost, and achieve the effects of saving electric energy, simple process and protecting the environment

Inactive Publication Date: 2003-12-03
赖祥武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the production cost is very high, so this method is not ideal for producing coated granular magnesium
From current situation, also do not use in production practice with the same method of the present invention

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0007] 1. Preparation of raw materials

[0008] Firstly, the magnesium ingot raw material is cut. That is, magnesium ingots are cut into strips of different specifications on special equipment. Then the strip crumb raw material is granulated on the granulation equipment. After granulation, particle size screening is carried out. Sieve out various raw material particles with different required particle sizes for use.

[0009] 2. Preparation of excipients

[0010] 1. Technical formula (weight percentage)

[0011] Sodium Chloride 30%

[0012] Magnesium Chloride 15%

[0013] Potassium Chloride 45%

[0014] Calcium Chloride 5%

[0015] Barium Chloride 5%

[0016] 2. Preparation process

[0017] Put the above-mentioned materials into a special container in proportion, add water at 100°C in a ratio of 1:1, and stir thoroughly to dissolve the above-mentioned various auxiliary materials into a chloride salt solution. After dissolution, keep the temperature for use.

[0018] ...

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Abstract

A kind of coated magnesium particles as the desulfurizing agent of molten iron is prepared from metal magnesium through cutting, granulating, screening, proportioning more kinds of chlorine salts, dissolving the mixture in water at 100 deg.c, loading said particles, in rotating container at 210-240 deg.c, spraying said solution onto particles, and baking. Its advantages are low cost, less electric consumption, and low pollution.

Description

technical field [0001] The invention discloses a molten iron desulfurizer, in particular a method for manufacturing coated granular magnesium. Background technique [0002] At present, the method of manufacturing coated granular magnesium in the world is to use "melting" molten magnesium as raw material, "melting" molten chlorine salt as auxiliary material, and adopt the method of centrifugal dispersion and synchronous coating to manufacture. It is to melt magnesium ingots at high temperature into liquid magnesium first, and then melt various chloride salts into liquid salts at high temperature. Then it is processed by coating. The disadvantage of this method is that the equipment is huge, the process is complicated, the power consumption is large, and the environment is polluted. Because smoke and dust are bound to be generated during the smelting of magnesium raw materials, and electricity must be used for smelting. Therefore, the production cos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/10
Inventor 张德胜
Owner 赖祥武
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