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Continuous washing device and method for electrolytic copper powder

A technology of electrolytic copper powder and cleaning device, which is applied in the field of electrolysis, can solve problems such as the complexity of the cleaning process, and achieve the effects of simplifying the process, reducing losses, and improving productivity

Active Publication Date: 2017-03-22
GRIPM ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of complex cleaning process of electrolytic copper powder, the present invention provides a continuous cleaning device and method for electrolytic copper powder, which is characterized in that:

Method used

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  • Continuous washing device and method for electrolytic copper powder
  • Continuous washing device and method for electrolytic copper powder
  • Continuous washing device and method for electrolytic copper powder

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Ordinary electrolytic copper powder is divided into two batches. One ton of powder product is processed by the original process, washed 7 times in the powder washing machine, washed three times after saponification, dried by centrifugal dryer for 30 minutes, and then enters the reduction furnace for reduction and drying, and then passes through the crusher. After crushing and classification by air classifier, the bulk density of sieved -200 mesh copper powder is 1.78g / cm 3 , the oxygen content is 565ppm, the water content is 0.04%, a total of 7 tons of water is used, and the labor time is 10 hours; the other ton is cleaned in the continuous cleaning electrolytic copper powder device, the speed of the turntable is 4 minutes / week, and the vacuum degree of suction filtration is 0.2M Pa , Surface anti-oxidation treatment with 0.5% unsaturated fatty acid. Then enter the reduction furnace for reduction and drying. After the copper powder material is discharged, it is screened...

Embodiment 2

[0030] Electrolytic copper powder with low loose ratio is divided into two batches, one ton is processed by the original process, washed 10 times in the powder washing machine, washed three times after passivation treatment, dried by centrifugal dryer for 40 minutes, dried by hot air stove, and then passed through air flow After grading by the classifier, the bulk density of the sieved -200 mesh copper powder is 1.18g / cm 3 , the oxygen content is 1165ppm, the water content is 0.07%, a total of 9 tons of water, 15 hours of labor time; another ton of continuous cleaning electrolytic copper powder is cleaned, the speed of the turntable is 6.5 minutes / week, and the vacuum degree of suction filtration is 0.2M Pa. Then use 0.3% rust remover to passivate the surface, and then pass hot air at 210°C to fluidize the powder for drying. After the copper powder material is discharged, it is screened to obtain a -200 mesh product, and its bulk density is 0.86 g / cm 3 , oxygen content 823ppm...

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Abstract

The invention discloses a continuous washing device and method for electrolytic copper powder, and belongs to the technical field of electrolyzing. The device is divided into three layers, wherein the first layer is a spraying device area, the second layer is a powder washing device, and the third layer is a washing liquid collecting area; the spraying device area is composed of a circulating acid liquor tank, a deionized water tank and a passivating solution tank; the powder washing area is composed of a turntable, a filtering net and a rotating motor; a distributing area, a circulating acid liquor spraying area, a deionized water spraying area, a passivating solution spraying area, a rolling brush cleaning area and a powder collecting area are distributed on the turntable; the rotating motor is connected with the turntable through a gear; the washing liquid collecting area is composed of a vacuum filtration device and a collecting cover. With the adoption of the device, the copper powder can be directly dried after acid pickling, water washing, passivating and dewatering, so as to obtain a product. With the adoption of the device and the method, production equipment can be decreased; the labor intensity of operators can be reduced; the water is saved; the energy consumption and the product loss can be reduced; the productivity and the product quality can be improved.

Description

technical field [0001] The invention belongs to the technical field of electrolysis, and in particular relates to a continuous cleaning device and method for electrolytic copper powder. Background technique [0002] In the production process of electrolytic copper powder, the copper powder produced by electrolysis needs to go through multiple processes such as cleaning, drying, reduction, drying, and grading to become a product. At present, most of them are independent unit processes. After washing with deionized water several times for deacidification and saponification, it is sent to the centrifugal dryer in batches to remove most of the water, and then sent to the reduction furnace to continue drying until the water content is lower than 0.1%, and the copper powder is removed by reduction under a hydrogen atmosphere The oxygen contained in the copper powder will generally agglomerate after passing through the reduction furnace, and it needs to be crushed before it can con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G3/00C23C22/00B22F1/00C25C5/02
CPCC23C22/00C23G3/00C25C5/02B22F1/145
Inventor 戴赫汪礼敏胡强张敬国刘勇刘一浪李烁
Owner GRIPM ADVANCED MATERIALS CO LTD
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