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A method for in-situ reduction of passivation solution carried by electrolytic manganese cathode plate

A cathode plate and passivation solution technology, applied in the direction of electrolysis components, electrolysis process, etc., can solve the problems of chromium resource waste, waste water chromium pollution, reduction of electrolytic manganese, etc., to reduce the processing capacity and processing difficulty, solve chromium pollution, solve Chromium resource waste effect

Active Publication Date: 2016-05-18
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an in-situ method for reducing the passivation solution carried by the electrolytic manganese cathode plate. Through this method, the problems of chromium pollution in wastewater and waste of chromium resources are solved, and the passivation solution carried by the cathode plate is greatly reduced. Chemical solution enters the wastewater system

Method used

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  • A method for in-situ reduction of passivation solution carried by electrolytic manganese cathode plate
  • A method for in-situ reduction of passivation solution carried by electrolytic manganese cathode plate
  • A method for in-situ reduction of passivation solution carried by electrolytic manganese cathode plate

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Embodiment Construction

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0029] A device for reducing passivation solution in situ, such as figure 1 , figure 2 , image 3 As shown, it includes a brushing device assembly, a passivation tank 3, a cathode plate 4 and a lifting device 7, and the brushing device assembly is located on the top of the passivation tank 3 and is fixedly connected with the passivation tank 3, so The cathode plate 4 is located directly above the passivation tank 3 , and the lifting device 7 is located directly above the cathode plate 4 and is connected with the cathode plate 4 to drive the cathode plate 4 to move up and down.

[0030] The brushing device assembly includes two sets of brushing devices, which are respectively arranged on both sides of the cathode ...

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Abstract

The invention relates to a method for in site reduction of a passivation solution carried by an electrolytic manganese negative plate. The device used in the invention comprises a drop brushing device component, a passivation groove, the negative plate and a lifting device, wherein the drop brushing device component is positioned at the top of the passivation groove and is fixedly connected with the passivation groove, the negative plate is positioned above the passivation groove, and the lifting device is positioned above the negative plate and is connected with the negative plate to drive the negative plate to move upwards and downwards. The method comprises the steps of passivation, discharge and drop brushing. Through the utilization of the method provided by the invention, the problems of waste water chromium pollution and the waste of chromium resource are solved, and the passivation solution carried by the negative plate and flowing into a waste water system is greatly reduced.

Description

technical field [0001] The invention relates to a method for in-situ reduction of passivation solution carried by electrolytic manganese cathode plates, in particular to a device for in-situ reduction of passivation solution and a method for in-situ reduction of passivation solution carried by electrolytic manganese cathode plates by using the device. Background technique [0002] The passivation process in the follow-up electrolysis of the traditional electrolytic manganese industry is manual. The electrolytic manganese cathode plate is placed in the passivation tank filled with potassium dichromate passivation solution by driving. After the passivation is completed, it is directly lifted out and placed on the cathode plate. On the vehicle, the passivation liquid carried by the cathode plate drops on the ground and finally enters the wastewater, causing chromium pollution in wastewater and waste of chromium resources. The passivation process is one of the important pollutio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C1/10C25C7/06
Inventor 段宁降林华徐夫元李志强但智钢陆大玮文玉成周超张歌阳建平高晓娟
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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