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Environmental protection and energy saving tin smelting equipment with non-uniform distribution resistance wire crystallizer and its application method

A non-uniform distribution, environmental protection and energy-saving technology, applied in the direction of improving process efficiency, etc., can solve the problem of difficult smelting of waste tin slag, and achieve the effect of reducing labor intensity

Active Publication Date: 2018-11-06
衡阳旺发锡业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventor made a series of attempts to solve the problem that the waste tin slag is difficult to smelt, such as redesigning the electric furnace

Method used

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  • Environmental protection and energy saving tin smelting equipment with non-uniform distribution resistance wire crystallizer and its application method
  • Environmental protection and energy saving tin smelting equipment with non-uniform distribution resistance wire crystallizer and its application method
  • Environmental protection and energy saving tin smelting equipment with non-uniform distribution resistance wire crystallizer and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] according to Figure 1-Figure 4 The designed and assembled equipment obtains the equipment required for smelting in this embodiment;

[0045] Wherein, the rotary kiln 1 is provided with a comb-type baffle 11, and the comb-type baffle 11 is composed of steel plates arranged on the inner wall of the rotary kiln 1, and each steel plate is divided into a fixed end and a volley end, and the fixed end is fixed on On the inner wall of the rotary kiln 1, the steel plates are defined as N sections, the volley ends of the steel plates on the same section point to the same plane, and the fixed ends of the steel plates of the same section are located on the same plane; between adjacent sections, the fixed ends of the steel plates are not on the same plane;

[0046] Using waste tin slag as raw material; the component analysis of said waste tin slag is Sn, Fe, Sio2, Ca; its smelting process is as follows:

[0047] step one

[0048] Using waste tin slag as raw material, put the was...

Embodiment 2

[0057] according to Figure 1-Figure 4 The designed equipment is assembled to obtain the equipment required for smelting in this embodiment; the waste tin slag is used as raw material; the component analysis of the waste tin slag is Sn, Fe, Sio2, Ca; its smelting process is as follows:

[0058] All the other operating steps and conditional parameters are consistent with embodiment 1;

[0059] In order to further improve the quality of the product, first add tin to a vacuum furnace for smelting, and then send it into a crystallizer for crystallization after smelting in the vacuum furnace; the temperature for smelting in the vacuum furnace is 1300°C, and the vacuum degree is 15-25Pa.

Embodiment 3

[0061] according to Figure 1-Figure 4 The designed equipment is assembled to obtain the equipment required for smelting in this embodiment; the waste tin slag is used as raw material; the component analysis of the waste tin slag is Sn, Fe, Sio2, Ca; its smelting process is as follows:

[0062] All the other operating steps and conditional parameters are consistent with embodiment 1;

[0063] In order to further improve the quality of the product, first add tin to a vacuum furnace for smelting, and then send it into a crystallizer for crystallization after smelting in the vacuum furnace; the temperature for smelting in the vacuum furnace is 1300°C, and the vacuum degree is 15-25Pa.

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Abstract

The invention relates to environment-friendly energy-saving tin metallurgy equipment with a nonuniform distribution resistance wire crystallizer and an application method of the environment-friendly energy-saving tin metallurgy equipment. The equipment comprises a rotary kiln 1, an electric furnace 2, a fume recovery device 3, a finery 4, the crystallizer 5 and a liquating furnace 7. A comb type baffle 11 is arranged in the rotary kiln 1. The crystallizer 5 comprises a tin outlet end, a tin inlet end and resistance wires. The distribution density of the electric resistance wires in the crystallizer 5 is decreased sequentially and progressively in the direction from the tin inlet end to the tin outlet end. The environment-friendly energy-saving tin metallurgy equipment has the advantages of environmental protection, energy conservation, good economic benefits and the like. Large-scale industrialized application of the environment-friendly energy-saving tin metallurgy equipment is convenient.

Description

technical field [0001] The invention relates to an environment-friendly and energy-saving tin smelting equipment with a non-uniformly distributed resistance wire crystallizer and an application method thereof, belonging to the technical field of nonferrous metallurgy. Background technique [0002] Tin smelting technologies include tin concentrate reverberatory furnace smelting process, electric furnace smelting process, Ausmelt smelting process, blast furnace smelting process, short kiln smelting process, and Kaldor furnace tin smelting process. The short kiln smelting process is a discontinuous smelting process, which has long been eliminated due to high investment, management and maintenance costs, large flue gas volume, and large fluctuations, and low direct yield. The Kaldor furnace is an oblique blowing rotary furnace with complex structure, high maintenance cost, short furnace life and high consumption of refractory materials. Disadvantages of electric furnace tin sme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B25/02C22B25/06C22B7/04
CPCC22B7/001C22B7/04C22B25/02C22B25/06Y02P10/20
Inventor 刘建新
Owner 衡阳旺发锡业有限公司