Granulation method of zinc leaching residues, zinc leaching residue material and application of zinc leaching residue material

A technology of zinc leaching slag and materials, which is applied in the field of granulation of zinc leaching slag materials and zinc leaching slag, which can solve the problems of large investment and operation costs, and achieve the effect of low cost and simple operation

Active Publication Date: 2020-05-08
云南云铜锌业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a granulation method of zinc leaching slag, zinc leaching slag material and its application, aiming at solving the problem of using a drying kiln to dry zinc leaching slag with relatively large investment and operating costs. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 1), collecting the zinc leaching underflow in the zinc smelting process, and filtering the zinc leaching underflow through a diaphragm filter press to obtain zinc leaching slag, wherein the mass percentage of water in the zinc leaching slag is 23.4%;

[0049] 2), take the prepared 279.4 tons of zinc leaching slag, and add 13.97 tons of lime, and ensure that the zinc leaching slag and lime are mixed relatively evenly by turning the material back and forth, and obtain the mixture of zinc leaching slag and lime;

[0050] 3), the mixture of the prepared zinc leaching slag and lime is stockpiled in another place for 4 days;

[0051] 4), the mixture of zinc leaching slag and lime after stockpiling for 4 days is added into anthracite fuel with a quality of 49.7% of the mass of the mixture after stockpiling for 4 days, and the material is turned back and forth to ensure that the mixture is even, and the mixed material obtained by mixing the fuel is obtained. material;

[0052]...

Embodiment 2

[0054] 1), collecting the zinc leaching underflow in the zinc smelting process, and filtering the zinc leaching underflow through a diaphragm filter press to obtain zinc leaching slag, wherein the mass percentage of water in the zinc leaching slag is 25.4%;

[0055] 2), take the prepared 250.8 tons of zinc leaching slag, and add 18.31 tons of lime, and ensure that the zinc leaching slag and lime are mixed relatively evenly by turning the material back and forth, and obtain the mixture of zinc leaching slag and lime;

[0056] 3), the mixture of the prepared zinc leaching slag and lime is stored in another site for 2 days;

[0057] 4), the mixture of zinc leaching slag and lime after storage for 2 days is added into anthracite fuel with a quality of 55.6% of the mixture quality after storage for 2 days, and the material is turned back and forth to ensure that the mixture is even, and the mixture of fuel is obtained. material;

[0058] 5), feed the mixed material mixed with fuel...

Embodiment 3

[0060] 1), collecting the zinc leaching underflow in the zinc smelting process, and filtering the zinc leaching underflow through a diaphragm filter press to obtain zinc leaching slag, wherein the mass percentage of water in the zinc leaching slag is 23.3%;

[0061] 2), take the prepared 280.1 tons of zinc leaching slag, and add 19.03 tons of lime, and ensure that the zinc leaching slag and lime are mixed relatively evenly by turning the material back and forth, and obtain the mixture of zinc leaching slag and lime;

[0062] 3), the mixture of the prepared zinc leaching slag and lime is stored in another site for 15 days;

[0063] 4), the mixture of zinc leaching slag and lime after stockpiling for 15 days is added into the anthracite fuel whose quality is 59.17% of the mass of the mixture after stockpiling for 4 days, and the material is turned back and forth to ensure that the mixture is even, and the mixture of fuel is obtained. material;

[0064] 5), feed the mixed materi...

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PUM

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Abstract

The invention discloses a granulation method of zinc leaching residues, a zinc leaching residue material and application of the zinc leaching residue material. The granulation method of the zinc leaching residues comprises the steps that the zinc leaching residues are obtained; the zinc leaching residues and lime are mixed to obtain mixed materials; the mixed materials are stacked; and the stackedmixed materials and fuel are mixed to obtained a fuel mixed mixture, crude zinc oxide powder is mixed into the fuel mixed mixture to carry out granulation, and granulation of the zinc leaching residues is completed. According to the granulation method of the zinc leaching residues, a drying kiln does not need to be adopted for drying the leaching residues, water of materials before granulation can meet the requirements of a granulation system, and the problems that in the prior art, a drying kiln needs to be adopted for drying the zinc leaching residues, and consequently the investment and running cost is large are solved.

Description

technical field [0001] The invention relates to the field of zinc leaching slag treatment, in particular to a zinc leaching slag granulation method, zinc leaching slag material and application thereof. Background technique [0002] Zinc smelting enterprises use rotary kilns to process zinc leaching slag, and use 50% to 60% fuel to obtain zinc oxide powder products. Affected by the market, the price of the fuel (coke) of the volatilization kiln continues to rise, resulting in a sharp increase in the processing cost of the volatilization kiln. [0003] In order to cope with the rising fuel prices, peer companies have adopted cheaper anthracite (or coke powder) instead of coke ding, in order to maintain the same level of processing costs as before in volatilization kilns. However, some problems are also brought about in this conversion process: after directly using anthracite (or coke powder) with finer particles, a large amount of anthracite (or coke powder) particles will en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/24C22B19/38C22B19/30C22B7/04
CPCC22B1/2406C22B7/04C22B19/30C22B19/38Y02P10/20
Inventor 王洪亮吴琼仙陈国木刘志民倪源周中华何金尹亚平胡琼胡德虎李明超陈浩孟奇刘建平
Owner 云南云铜锌业股份有限公司
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