Method for cleaning cathode surface in electrolysis production process

Abstract

According to the method for cleaning the surface of the cathode in the electrolysis production process, an ultrasonic vibration generator is placed in electrolyte in any direction, energy of ultrasonic vibration is directly transmitted to the electrolyte, and impurity particles attached to the surface of the cathode are cleaned through ultrasonic vibration of the electrolyte; meanwhile, ultrasonic vibration of the electrolyte on the surface of the cathode enables various ions in the electrolyte to be higher in mechanical activity and moving speed, electrochemical precipitation of the ions on the surface of the cathode is facilitated, and the ultrasonic vibration generator can be directly installed on a cathode plate to directly transfer energy; the working time of the ultrasonic vibration generator in the electrolysis production process is automatically controlled through an automatic module, long-time low-power operation or short-time high-power operation can be achieved, and energy transmitted to the surface of the cathode can be ultrasonic waves, microwaves, electromagnetic radiation and the like.

Description

Technical Field

[0001] The invention discloses a method for cleaning a cathode surface during an electrolytic production process, and relates to a method for cleaning a cathode surface during an electrolytic production process. Background Art

[0002] At present, when electrolysis is used to produce cathode metal products, impurities such as attachments are inevitably present on the cathode surface. The only way to reduce the adverse effects during the electrolysis production process is to control the solution parameters, and there is no way to effectively overcome the impact of this problem. When electrolyzing and separating some elements, loose metal powders, non-metallic sludge, precipitation and other substances may be attached to the cathode surface. Many of these substances are not easy to fall off and cover the cathode surface, affecting the normal electrochemical reaction of the cathode. The cathode can only be removed for special cleaning every production cycle. In view of the problems existing in the above-mentioned electrolysis production process, it is necessary to study and develop a cathode surface cleaning method to overcome the above-mentioned problems, reduce labor intensity and improve the level of work and production technology. Summary of the invention

[0003] A method for cleaning the cathode surface during electrolytic production, characterized in that:

[0004] Place the ultrasonic vibration generator in the electrolyte in any direction. The energy of the ultrasonic vibration is directly transferred to the electrolyte. The ultrasonic vibration of the electrolyte cleans the impurity particles adhering to the cathode surface. At the same time, the ultrasonic vibration of the electrolyte on the cathode surface makes the various ions in the electrolyte more mechanically active and move faster, which is beneficial to the electrochemical precipitation of ions on the cathode surface.

[0005] The ultrasonic vibration generator can be directly installed on the cathode plate, and the energy of the ultrasonic vibration is more directly transmitted to the cathode surface.

[0006] The working time of the ultrasonic vibration generator in the electrolytic production process can be flexibly adjusted according to production needs. It can be a long-term low-power operation or a short-term high-power operation, and automatic control is achieved through the automation module.

[0007] The energy transferred to the cathode surface can be ultrasonic waves, microwaves, electromagnetic radiation and other energies. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Instructions attached Figure 1 This is a schematic diagram of a method for cleaning the cathode surface during electrolytic production. The numbers in the figure represent: 1: Schematic diagram of cathode surface; 2: Schematic diagram of ultrasonic vibration generator. DETAILED DESCRIPTION

[0009] Copper electrolysis production process: An ultrasonic vibration generator is fixed in the middle of the upper edge of the stainless steel permanent cathode plate: frequency 20,000 Hz, power 30 watts, one ultrasonic vibration generator is installed every 5 stainless steel permanent cathode plates, the working rhythm is 5 seconds every 60 seconds, and the cathode copper production continues throughout the cathode cycle.

[0010] Implementation effect: During the 8 to 10-day cathode production cycle, the short-circuit rate in the electrolytic cell was reduced by 0.2%, and the quality rate of the cathode copper products produced was increased by 2.6%.

[0011] Electrolysis process of removing arsenic from copper electrolyte: Arsenic removal is carried out using a continuous dearsenication electrolytic tank. The original electrolytic tank is equipped with 50 rotating cathodes. The total area of ​​each cathode is 1 square meter, and the total effective area of ​​the cathode is 50 square meters. There is a brush for cleaning the cathode fixed to each cathode in the electrolytic tank. The brush is now removed. An ultrasonic vibration generator with a power of 1 kilowatt and a frequency of 25,000 Hz is installed in the upper middle part of the electrolytic tank. The working rhythm is 30 seconds every 30 minutes. The ultrasonic vibration generator is kept working stably during the continuous dearsenication process.

[0012] Implementation effect: The cathode surface was cleaned with an ultrasonic vibration generator for continuous arsenic removal. The cathode current efficiency was increased by 3.5% compared with the brush cleaning method. The automatic liquid inlet control system of the electrolytic tank increased the solution processing capacity, processing 0.2 cubic meters of solution more per hour, and the arsenic separation rate reached 92.0%.

Claims

1. Place the ultrasonic vibration generator in the electrolyte in any direction. The energy of the ultrasonic vibration is directly transferred to the electrolyte. The ultrasonic vibration of the electrolyte cleans the impurity particles adhering to the cathode surface. At the same time, the ultrasonic vibration of the electrolyte on the cathode surface makes the various ions in the electrolyte more mechanically active and move faster, which is beneficial to the electrochemical precipitation of ions on the cathode surface.

2. The ultrasonic vibration generator can be directly installed on the cathode plate, and the energy of the ultrasonic vibration is more directly transmitted to the cathode surface.

3. The working time of the ultrasonic vibration generator in the electrolytic production process can be flexibly adjusted according to production needs. It can be a long-term low-power operation or a short-term high-power operation, and automatic control is achieved through the automation module.

4. The energy transferred to the cathode surface can be ultrasonic waves, microwaves, electromagnetic radiation and other energies.

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