CN216129686U

CN216129686U - Copper electrolyte circulating tank

Info

Publication number: CN216129686U
Application number: CN202121982913.XU
Authority: CN
Inventors: 唐文忠; 梁玮; 王俊杰
Original assignee: Tongling Nonferrous Metals Group Co Ltd
Current assignee: Tongling Nonferrous Metals Group Co Ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-03-25
Anticipated expiration: 2031-08-23

Abstract

The utility model aims to provide a copper electrolyte circulating tank with good cathode copper quality and simple structure, wherein a liquid supplementing port is arranged on a tank body at a liquid inlet side, an overflow port is arranged at the upper part of the tank body at a liquid outlet side, a baffle is arranged in a tank cavity close to the overflow port, the tank body is separated from an electrolysis main tank and an overflow tank by the baffle, a liquid passing port is arranged at the lower end of the baffle, and electrolyte enters the electrolysis main tank from the liquid supplementing port and then enters the overflow tank through the liquid passing port. Compared with the prior art, the electrolyte circulation mode is changed from 'bottom-in and top-out' into 'top-in and bottom-out', which is consistent with the falling direction of the anode mud, and is beneficial to the anode mud falling to the bottom of the tank, thereby ensuring the quality of the cathode plate.

Description

Copper electrolyte circulating tank

Technical Field

The utility model relates to the technical field of copper smelting, in particular to a copper electrolyte circulating tank.

Background

The electrolytic refining process device generally adopts a stainless steel cathode electrolysis technology, the current density of the technology is 220-charge 300A/m2, the electrolyte circulating device matched with the technology is in a form of an electrolytic cell-electrolyte circulating cell-electrolytic circulating pump-heat exchanger-elevated tank-liquid separator-electrolytic cell, the process technology is the current mature electrolyte circulating technology, and the technology has the characteristics of high current efficiency, good product quality, high qualified rate of high-purity cathode copper and the like. When copper is electrolyzed, copper ions are continuously separated out on the cathode, and after the concentration of the copper ions in the solution is reduced to a certain degree, arsenic, antimony and bismuth are also separated out on the cathode together with copper in sequence to form black copper.

The structure of the electrolytic bath in the prior art is shown in figure 1, a baffle 2 is arranged in the bath at one side of a replenishing solution, the electrolyte enters the electrolytic bath 1 from the upper part of the electrolytic bath 1 and then enters the main body of the electrolytic bath from a channel between the baffle 2 and the bottom of the bath, and an overflow port 3 is arranged on the bath body 1 at the upper part of the other side. Similarly, Chinese patent entitled "copper sulfate electrolyte circulating device" (grant publication No. CN 206328469U) discloses the following technical scheme: as shown in figure 2, the bottom of the electrolytic bath is provided with a liquid distribution pipe, the liquid distribution pipe is composed of a main pipe and two rows of branch pipes connected with the main pipe, liquid distribution holes are uniformly distributed on the branch pipes, the main pipe is connected with a liquid inlet pipe of the electrolytic bath, and the concentration of copper sulfate electrolyte can be automatically supplemented and adjusted according to the electrolytic process, so that the stable quality of the electrolytic copper product is ensured. In the two schemes, the electrolyte feeding mode is a mode of 'bottom-in top-out', however, in the electrolytic refining process, precious metals, certain metals and the like in the anode are not dissolved and become anode mud which falls at the bottom of the electrolytic tank from top to bottom, and in the electrolytic tank adopting the 'bottom-in top-out' circular electrolyte feeding mode, the flowing direction of the electrolyte is from bottom to top, which is opposite to the settling direction of the anode mud and is not beneficial to the rapid settling of the anode mud, so that part of the anode mud is adsorbed on a cathode plate, the silver content of mechanical impurities in the cathode copper is increased, and according to experience, the 'bottom-in top-out' circular electrolyte feeding mode is used for electrolytically producing the cathode copper with the silver content of 10-14 ppm, and the quality of the cathode copper is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a copper electrolyte circulating tank with good cathode copper quality and simple structure.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a copper electrolyte circulation groove, includes the cell body, is provided with the fluid infusion mouth on the cell body of feed liquor side, and the cell body upper portion position department of going out the liquid side is provided with the overflow mouth, closes on the cell cavity of overflow mouth and is provided with the baffle, and electrolysis owner groove and overflow launder are separated with the cell body to the baffle, and the lower extreme position department of baffle is provided with the fluid passing mouth, and electrolyte gets into the electrolysis owner inslot from the fluid infusion mouth again, gets into in the overflow launder through the fluid mouth.

Compared with the prior art, the electrolyte circulation mode is changed from 'bottom-in and top-out' into 'top-in and bottom-out', which is consistent with the falling direction of the anode mud, and is beneficial to the anode mud falling to the bottom of the tank, thereby ensuring the quality of the cathode plate.

Drawings

FIG. 1 and FIG. 2 are schematic structural views of a copper electrolyte circulation tank in the prior art;

FIG. 3 is a schematic view showing the structure of a copper electrolyte circulation tank according to the present invention.

Detailed Description

As shown in fig. 3, a copper electrolyte circulation tank comprises a tank body 10, a liquid supplementing port 11 is arranged on the tank body 10 on a liquid inlet side, an overflow port 12 is arranged at the upper part of the tank body 10 on a liquid outlet side, a baffle 13 is arranged in a tank cavity close to the overflow port 12, the baffle 13 separates the tank body 10 into an electrolysis main tank a and an overflow tank B, a liquid passing port 14 is arranged at the lower end of the baffle 13, and electrolyte enters the electrolysis main tank a from the liquid supplementing port 11 and then enters the overflow tank B through the liquid passing port 14. In the above scheme, the overflow port 12 is separated by the baffle 13, the electrolyte in the main electrolytic tank A can only pass through the liquid passing port 14 at the lower end of the baffle 13, therefore, the flowing direction of the electrolyte in the main electrolytic tank A is shown by an arrow in figure 3, the electrolyte flows downwards on the whole, the flowing direction is consistent with the falling direction (from top to bottom) of anode mud, the anode mud falls to the bottom of the tank, the quality of a cathode plate is ensured, the cathode copper separated out on the cathode plate by adopting the circulation mode is obtained through tests, and the purity of the cathode copper is effectively improved as the silver content of the cathode copper is reduced to 6-8 ppm from 10-14 ppm.

The specific method comprises the following steps: the baffle 13 is arranged in the vertical direction and is parallel to the groove wall of the groove body 10 at the liquid inlet/outlet side, the upper end of the baffle 13 is fixedly connected with the upper groove opening of the groove body 10, and a clearance is reserved between the lower end and the groove bottom and forms a liquid passing opening 14. The baffle 13 and the tank body 10 are directly arranged at intervals, and a liquid passing port 14 is not required to be additionally arranged as a liquid passing passage, so that the structure is simple.

Baffle 13 is whole to be narrow-end wide trapezoidal down, and the size is selected: the upper side is 500mm, the lower side is 800mm, and the height is 1000 mm.

Due to the characteristics of the electrolyte, the baffle 13 is made of glass fiber reinforced plastic material, and the glass fiber reinforced plastic has the advantages of high temperature resistance, corrosion resistance and electrochemical corrosion resistance, and is very suitable for the scenes.

Preferably, the fluid infusion port 11 is arranged at the upper position of the trough body 10 at the fluid inlet side.

Claims

1. The utility model provides a copper electrolyte circulation groove, includes cell body (10), is provided with fluid infusion mouth (11) on cell body (10) of feed liquor side, and cell body (10) upper portion position department of going out the liquid side is provided with overflow mouth (12), its characterized in that: a baffle (13) is arranged in a groove cavity close to the overflow port (12), the baffle (13) separates the groove body (10) from the main electrolytic groove (A) and the overflow groove (B), a liquid passing port (14) is arranged at the lower end position of the baffle (13), and electrolyte enters the main electrolytic groove (A) from the liquid supplementing port (11) and then enters the overflow groove (B) through the liquid passing port (14).

2. The copper electrolyte circulation tank according to claim 1, wherein: the plate surface of the baffle (13) is arranged in the vertical direction and is parallel to the groove wall of the groove body (10) at the liquid inlet/outlet side, the upper end of the baffle (13) is fixedly connected with the upper groove opening of the groove body (10), and a clearance is reserved between the lower end and the groove bottom and forms a liquid passing opening (14).

3. The copper electrolyte circulation tank according to claim 1 or 2, wherein: the baffle (13) is in a trapezoid shape with a narrow upper part and a wide lower part.

4. The copper electrolyte circulation tank according to claim 1, wherein: the baffle (13) is made of glass fiber reinforced plastic material.

5. The copper electrolyte circulation tank according to claim 1, wherein: the liquid supplementing port (11) is arranged at the upper part of the groove body (10) at the liquid inlet side.