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Method for producing zinc powder by treating zinc-containing miscellaneous material through electric furnace

A technology of miscellaneous materials and zinc powder, which is applied in the field of recycling and utilization of non-ferrous metal smelting waste, to achieve the effect of low output rate

Inactive Publication Date: 2011-09-14
HULUDAO ZINC IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] In order to overcome the shortcomings of the existing zinc-containing intermediate materials returning to the batching system and using zinc calcine as raw material to produce zinc powder in an electric arc furnace, the present invention proposes a method for producing zinc powder by using an electric furnace to process zinc-containing miscellaneous materials

Method used

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  • Method for producing zinc powder by treating zinc-containing miscellaneous material through electric furnace

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Experimental program
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Effect test

Embodiment １

[0074] Quantitative batching of zinc-containing miscellaneous materials: 32 parts of coke powder, 22 parts of wet blue powder, 22 parts of electrolytic zinc scum and 24 parts of rectified zinc slag are taken according to the mass ratio, and mixed as zinc-containing miscellaneous materials after quantitative batching process 1 material;

[0075] Operation method of zinc powder production process: The above zinc metallurgical zinc-containing miscellaneous materials are stored in different material storage bins in the material preparation workshop. The wet blue powder is stored separately, and after being naturally dried, it is dispersed with a looser. After the scattered wet blue powder, coke powder, electrolytic zinc scum and rectification zinc slag are weighed and dosed by a quantitative feeder, It is sent to the intermediate silo by the chain bucket conveyor, and then granulated. The granulated zinc-containing miscellaneous material mixture is sent to a baking kiln for roast...

Embodiment 2

[0080] Quantitative batching of zinc-containing miscellaneous materials: Take 28 parts of coke powder, 23 parts of wet blue powder, 23 parts of electrolytic zinc scum and 26 parts of rectified zinc slag according to the mass ratio, and mix them as zinc-containing miscellaneous materials after quantitative batching;

[0081] The operation method of the zinc powder preparation process is as in Example 1.

Embodiment 3

[0082] Example 3. Quantitative batching of zinc-containing miscellaneous materials: 34 parts of coke powder, 20 parts of wet blue powder, 20 parts of electrolytic zinc scum and 26 parts of rectified zinc slag are taken according to the mass ratio, and mixed as zinc-containing miscellaneous materials after quantitative batching process ;

[0083] Zinc powder preparation process operation method is as embodiment 1

[0084] Technical features of the present invention:

[0085] 1) 100% use of zinc-containing miscellaneous materials;

[0086] The intermediate zinc-containing miscellaneous materials produced by the existing pyro-method and hydro-method zinc smelting systems meet the requirements of the mixture ingredients for zinc powder produced by electric arc furnaces, and do not contain sulfides and sulfates, so that the smelting waste gas does not contain sulfur dioxide, which can be used for The recovery of carbon monoxide in smelting waste gas creates extremely favorable c...

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Abstract

The invention relates to a method for producing zinc powder by treating a zinc-containing miscellaneous material through an electric furnace. The zinc powder is prepared by the zinc-containing miscellaneous material through a zinc-containing miscellaneous material quantitatively-batching process, a zinc-containing miscellaneous material mixture pelletizing process, a zinc-containing miscellaneousmaterial particle roasting process, a roasted flue gas dust collection process, an electric furnace smelting process, a zinc powder condensation process and a smelted flue gas dust collection process. In the method, the zinc powder is produced by the zinc-containing miscellaneous material generated by zinc pyrometallurgy or zinc hydrometallurgy, so that useful zinc powder can be extracted and recycled from the zinc-containing miscellaneous material. The zinc-containing miscellaneous material can be completely utilized; and the method has the advantages of removing fluorine and chlorine and completely recycling condensed waste gas, along with extremely low content of impurities such as iron and the like in raw materials and low yield of waste residues of a device, and is suitable to be applied to the production of the zinc powder prepared by recycling the zinc-containing miscellaneous material. The obtained zinc powder can be used for a replacement reduction process of hydrometallurgy.

Description

technical field [0001] The invention relates to the technical field of recycling and utilization of non-ferrous metal smelting waste, in particular to a method for producing zinc powder by treating miscellaneous materials containing zinc in an electric furnace. Background technique [0002] At present, the method of processing zinc-containing waste and using zinc calcine as raw material to produce zinc powder by electric arc furnace is as follows. [0003] 1. Methods for dealing with zinc-containing waste: [0004] Intermediate materials produced in the zinc pyrometallurgy process, such as: coke powder in the distillation zinc smelting system, zinc powder and wet blue powder in the condensation process, zinc slag produced in the rectification process, and scum in electrolytic zinc casting. These zinc-containing intermediate materials are sent to the agglomeration system of the vertical tank distillation zinc smelting system as ingredients, and then undergo coking, distillat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B19/30
CPCY02P10/20
Inventor 郭天立李国伟王克朱威张卓
Owner HULUDAO ZINC IND CO LTD
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