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Electrowinning line comprising pre-stripping apparatus

An electrolytic deposition and pre-stripping technology, which is applied in the direction of electrolytic process, electrolytic components, electrodes, etc., can solve the problems that cannot ensure reliable pre-stripping operation

Active Publication Date: 2021-01-12
莱昂·克罗塞特
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] This solution is interesting, but does not ensure reliable pre-stripping operation
The problems with such pre-stripping devices are:
[0016] As can be seen from the foregoing, whether or not a pre-stripping station is used, the stripping cycle still has a duration that limits the productivity of the electrowinning apparatus.

Method used

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  • Electrowinning line comprising pre-stripping apparatus
  • Electrowinning line comprising pre-stripping apparatus
  • Electrowinning line comprising pre-stripping apparatus

Examples

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Embodiment Construction

[0094] The present invention relates to an electrolytic deposition line for recovering target metal 13 electrolytically coated on a cathode plate 11C. The target metal may for example be selected from zinc, copper, nickel or gold. Such as image 3 As schematically illustrated in , an electrolytic deposition line typically includes one or more electrolytic cells 1 filled with electrolyte 1e, and each electrolytic cell is configured for submerging a multi-layered array consisting of interleaved cathode plates 11C and anode plates 11A. an electrode plate. Current flows from the anode plate to the cathode plate through the electrolyte 1e, resulting in the deposition of a metal layer on the major surface of the cathode plate facing the anode plate. Since the cathode plate is flanked by the anode plate on both sides thereof, the metal layer 13 is deposited on the first and second main surfaces of the cathode plate during the electrodeposition operation. When the metal layer has re...

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Abstract

The invention relates to an electrowinning line comprising a pre-stripping apparatus. The electrowinning line for recovering target metal present in an electrolyte comprises a pre-stripping apparatus(40), wherein the pre-stripping apparatus comprises a pre-stripping arm (20) and a blade module (21), the pre-stripping arm is variable in length and can rotate about a hinge, the blade module is arranged at the free end of the pre-stripping arm, the blade module comprises two blades (22), and the blades form a tip of the blade module and are configured to move between a standby configuration anda pre-stripping configuration. The pre-stripping apparatus induces cracks over substantially the entire width (W) of a cathode plate at interfaces between first and second main surfaces and corresponding metal layers by a combination of rotation and extension of the length of the pre-stripping arm and moving the blades of the blade module between the standby configuration and the pre-stripping configuration. The use of the pre-stripping apparatus allows a stripping cycle to be reduced by about 28% relative to a stripping cycle without the use of a pre-stripping station.

Description

technical field [0001] The present invention belongs to the field of production lines for non-ferrous metals by means of an electrowinning process, comprising the transfer of a plurality of cathode plates coated with a layer of metal on their first and second main surfaces from filled with an electrolyte ( An electrolytic cell (cell) in the form of a pool of electrolyte is transported to a stripping station for stripping the metal layer from the first major surface and the second major surface. In particular, the invention relates to pre-stripping equipment configured for inducing cracks between the metal layer and the first and second major surfaces of the cathode to facilitate subsequent debonding on the production line The metal layer is stripped at the device. Using the pre-stripping device of the present invention can reduce the total stripping time by at least 25% and significantly reduce the number of times the stripping line is interrupted for unsuccessful stripping o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C7/08C25C7/02
CPCC25C7/08C25C7/02Y02P10/20
Inventor 莱昂·克罗塞特
Owner 莱昂·克罗塞特
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