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Device and method for wet addition of zinc powder

A zinc powder, a part of the technology, applied in the field of zinc powder wet-adding devices, can solve the problems of zinc powder flying loss, environmental pollution, etc., and achieve the effect of solving the zinc powder flying loss

Active Publication Date: 2021-10-01
云南云铜锌业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a device and method for wet addition of zinc powder, aiming at solving the flying loss of zinc powder and environmental pollution caused by the addition of dry powder of zinc powder in the existing zinc powder purification process of the existing hydrometallurgy The problem

Method used

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  • Device and method for wet addition of zinc powder
  • Device and method for wet addition of zinc powder

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] In this embodiment, sprayed zinc powder is used, with a particle size of 400 mesh.

[0073] Such as figure 2 As shown, spray zinc powder and water according to the mass ratio of 1:4 (accurately weigh the mass of zinc powder through the electronic scale set at the powder filling port, and use the water meter set at the water filling port to control the water consumption) respectively from the powder feeding The mouth and the water inlet are added to the pulping tank 1# and the pulping tank 2# for pulping for 0.5h. At the same time, there is a dust collection bag above the pulping tank to collect the flying zinc powder to ensure the surrounding environment of the powder adding point. The dust content does not exceed the standard.

[0074] The zinc powder slurry obtained after pulping in pulping tank 1# and pulping tank 2# is pumped to the circulation tank respectively through the conveying pipeline by means of the delivery pumps connected to pulping tank 1# and pulping ...

Embodiment 2

[0078] In this embodiment, electric furnace zinc powder is used, with a particle size of 200 mesh.

[0079] Such as figure 2As shown, according to the mass ratio of 1:2.5 (accurately weigh the quality of the zinc powder through the electronic scale set at the powder adding port, use the water meter set at the powder adding port to control the water consumption) respectively from the powder adding port and water according to the mass ratio of 1:2.5. The water inlet is added to the pulping tank 1# and the pulping tank 2# for pulping for 0.5h. At the same time, there is a dust collection bag above the pulping tank to collect the flying zinc powder in it to ensure the dust in the surrounding environment of the powder adding point. The content does not exceed the standard.

[0080] The zinc powder slurry obtained after pulping in pulping tank 1# and pulping tank 2# is pumped to the circulation tank respectively through the conveying pipeline by means of the delivery pumps connect...

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Abstract

The invention discloses a device and method for wet addition of zinc powder. The device for wet addition of the zinc powder comprises a slurry mixing tank and a circulating tank. The upper part of the slurry mixing tank is provided with a dust collecting bag and at least one feeding hole, and the lower part of the slurry mixing tank is provided with a liquid outlet; the upper part of the circulating tank is provided with a first liquid inlet and a second liquid inlet, the lower part of the circulating tank is provided with a liquid outlet, the first liquid inlet of the circulating tank is connected with the liquid outlet of the slurry mixing tank through a first conveying system, and the liquid outlet of the circulating tank is connected with the second liquid inlet of the circulating tank through a second conveying system; and at least one liquid outlet is formed in the second conveying system, and the at least one liquid outlet in the second conveying system is connected with a purification reaction tank for zinc hydrometallurgy. Zinc powder and water are added into the slurry mixing tank for centralized slurry mixing, then conveyed to the circulating tank and then conveyed to the purification reaction tank for zinc hydrometallurgy for use, so that zinc powder wet adding is achieved, and the problems that in the zinc powder dry adding process, zinc powder flies and is lost, and environmental pollution is caused are solved.

Description

technical field [0001] The invention relates to the field of zinc hydrometallurgy, in particular to a device and method for wet addition of zinc powder. Background technique [0002] During the purification process in the zinc hydrometallurgy process, it is necessary to add zinc powder to replace and remove impurities such as copper, cadmium, cobalt, and antimony in the solution. Generally, a dry powder belt scale is used to measure and then add to ensure that the zinc powder added to the reaction tank is accurate and uniform. This ensures the stability of the purification process, but there are problems such as flying loss of dry powder, flying zinc powder above the purification reaction tank and serious dust accumulation, which pollute the working environment. [0003] Therefore prior art still needs to improve and develop. Contents of the invention [0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/02C22B3/46C22B19/20B01F3/12B01F13/10B01F15/00
CPCC22B3/02C22B3/46C22B19/26Y02P10/20
Inventor 陈国木李国峰周中华曾鹏欧自力刘迅刘建平李朝洪罗丽萍王赛吴海艳黑建华罗平董坤刘自虎
Owner 云南云铜锌业股份有限公司
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