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Solder splash side blowing molten pool smelting furnace cold metal direct making fuming volatilization method

A molten pool smelting furnace and volatilization technology, applied in the field of non-ferrous metallurgy smelting, can solve the problems of poor environmental protection, huge investment, and large scale, and achieve the effects of reduced consumption, less investment, and strong adaptability

Inactive Publication Date: 2010-12-08
杨龙安 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the above-mentioned process has disadvantages such as huge scale, huge investment, high energy consumption, and poor environmental protection effect.

Method used

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  • Solder splash side blowing molten pool smelting furnace cold metal direct making fuming volatilization method
  • Solder splash side blowing molten pool smelting furnace cold metal direct making fuming volatilization method

Examples

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Effect test

example 1

[0034] Example 1: Fuming volatilization of cold material containing tin slag through direct refining

[0035] 1. Design parameters of side blowing molten pool melting furnace: hearth area 2.7m 2 , the height of the furnace body is 6.5m, and the processing capacity is 16 tons / m 2 .d, the nozzle diameter of the spray gun is 35mm, 8 spray guns, the inclination angle of the spray gun is zero degree, the center distance of the spray gun is 330mm, the combustion rate of the spray gun is 560~1136kg / h, and the fuel is bituminous coal powder.

[0036] 2. Preparation of materials

[0037] Use tin-containing pyrometallurgy slag materials, wet smelting, low-grade, difficult-to-handle materials and other tin-containing materials with a tin content of 1 to 3%. The flux is 20 to 30% of quartz stone and 30% of limestone. ~40%, according to the required silicic acidity of 0.9~1.2 for the smelting materials in the furnace, determine the ratio of the ingredients, use machinery to fully mix and...

example 2

[0046] 1. Design parameters of side blowing molten pool melting furnace: hearth area 3.6m 2 , the height of the furnace body is 7.6m, and the processing capacity is 18.5 tons / m 2 .d, the nozzle diameter of the spray gun is 30mm, 16 spray guns, the inclination angle of the spray gun is 0.5 degrees, the center distance of the spray gun is 300mm, the combustion rate of the spray gun is 1120~2272kg / h, and the fuel is bituminous coal powder.

[0047] 2. Preparation of materials

[0048] The tin-containing pyrometallurgy slag material, the low-grade and difficult-to-handle material of wet smelting and other tin-containing materials, the tin content is 3-5%, the flux is quartz stone, the content is 30-40%, and the limestone content is 40-50% Determine the ratio of the ingredients according to the required silicic acidity of 0.9-1.2 for the smelting materials in the furnace. Use machinery to fully mix and stir the materials until the materials are observed to be uniform, and the prep...

example 3

[0057] 1. Design parameters of side blowing molten pool melting furnace: hearth area 4.8m 2 , the height of the furnace body is 8.7m, and the processing capacity is 21 tons / m 2 .d, the nozzle diameter of the spray gun is 26mm, 20 spray guns, the inclination angle of the spray gun is 1.0 degree, the center distance of the spray gun is 250mm, the combustion rate of the spray gun is 1400~2840kg / h, and the fuel is bituminous coal powder.

[0058] 2. Preparation of materials

[0059] Combine tin-containing pyrometallurgy slag materials with wet smelting, low-grade, difficult-to-handle materials and other tin-containing materials, the tin content is 5-7%, the flux is 40-50% quartz stone, and 50% limestone ~60%, according to the required silicic acidity of 0.9~1.2 for the smelting materials in the furnace, the proportion of ingredients is determined, and the materials are fully mixed and stirred by machinery until the materials are observed to be uniform, and the preparation of the ...

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Abstract

The invention relates to a side blowing molten pool smelting material cold metal fuming volatilization direct making method, belonging to the non-ferrous metallurgy technical field. The invention includes the following technological steps: (1) crushed gold-containing metal slag charge and solvent are mixed by slag silicate degree calculated value in complete reaction, and stirring to be uniform is carried out, so as to form furnace burden; (2) ignition and blowing in are carried out on a side blowing molten pool smelting furnace, and a melt with the depth of 200-500mm is produced in the molten pool; (3) the charging speed of furnace burden is consistent with the smelting speed, wind pressure, blowing rate, coal dust charging quantity and smelting temperature are controlled, reduction smelting is carried out, charging is stopped when the height of molten layer is 800-1300mm, and reduction smelting is further enhanced; (4) vulcanizer is added in steps in calculated quantity, the wind pressure, blowing rate and coal dust charging quantity are controlled, sulfiding volatilization is carried out, waste slag is discharged, the bed charge melt with the depth of 200-500mm is remained, and operation of the next round is carried out. The invention has less investment, high heat utilization ratio, rapid smelting, low energy consumption, less occupying area and short production period and is convenient for mass production.

Description

technical field [0001] The invention relates to a method for fuming, volatilizing and direct smelting of cold materials for smelting materials in a side blowing molten pool, and belongs to the technical field of nonferrous metallurgy. Background technique [0002] At present, the fuming and volatilization technology of metal slag-containing materials in China is as follows: firstly, the metal slag and flux should be prepared as a mixture, and the bricks should be air-dried for about 20 days before being put into the furnace for fuming and volatilization, referred to as "three furnaces in one" smelting fuming volatilization process. The process is to form three smelting processes through three metallurgical furnaces. The smelting and volatilization process has to process the same variety and the same batch of materials in stages through three processes. The whole process is indispensable. "Three furnaces" are: (1) blast furnace process, which is the initial melting of materi...

Claims

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Application Information

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IPC IPC(8): C22B5/10C22B5/16C22B25/06
CPCY02P10/20
Inventor 杨龙安杨龙祥
Owner 杨龙安
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