A kind of exhaust device for copper electrolysis liquid separation tank

Abstract

The utility model discloses an exhaust device for a copper electrolytic liquid separation tank. The device sequentially connects an electrolyte circulation tank, an electrolyte circulation pump, a liquid separation tank and an electrolytic tank through pipelines. The electrolytic tank is then connected to the electrolyte circulation tank through pipelines. A liquid separation tank exhaust port is arranged on the top of the liquid separation tank. After all the electrolyte is gathered in the liquid separation tank, the air in the electrolyte is gathered to the liquid separation tank exhaust port and discharged due to the light density of the air, thereby achieving the discharge of the air mixed in the electrolyte, avoiding the problems of air mixed in the electrolyte and pitting of cathode copper, and improving the physical appearance quality of the cathode copper.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical equipment, and particularly relates to an exhaust device for a copper electrolysis liquid separation tank. Background Art

[0002] During the copper electrolysis production process, the cathode copper surface often has pitting, which affects the quality of the cathode copper. The pitting is mainly caused by a large amount of air mixed into the electrolyte. The air exists in the electrolyte in the form of bubbles. During the process of escaping from the bottom of the electrolytic cell to the surface of the cell, some of the bubbles will adhere to the cathode surface. Since the bubbles are not conductive, copper ions cannot penetrate the bubbles and precipitate on the cathode surface, so no copper ions are precipitated there, thus forming pitting, which will affect the physical appearance quality of the cathode copper. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in view of the defect in the prior art that a large amount of air is mixed into the electrolyte, which will affect the physical appearance quality of the cathode copper, the utility model solves the problem of how to provide a copper electrolysis liquid separation tank exhaust device that can discharge the air mixed into the electrolyte.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A copper electrolysis liquid separation tank exhaust device comprises an electrolyte circulation tank, an electrolyte circulation pump, a liquid separation tank and an electrolytic tank which are connected in sequence through pipelines, the electrolytic tank is further connected to the electrolyte circulation tank through a pipeline, and a liquid separation tank exhaust port is arranged on the top of the liquid separation tank.

[0006] A further technical solution is to provide an exhaust port control valve at the exhaust port of the liquid separation tank, the exhaust port control valve is connected to the gas-liquid separation tank through a collecting pipe, and the gas-liquid separation tank is connected to an exhaust pipe.

[0007] A further technical solution is that the liquid discharge port of the gas-liquid separation tank is connected to the electrolyte circulation tank through a pipeline.

[0008] A further technical solution is that two electrolytic cells form a group, the electrolytic cells include more than two groups, the liquid separation tank is connected to all the electrolytic cells through pipelines, and all the electrolytic cells are connected to the electrolyte circulation tank through pipelines.

[0009] A further technical solution is that the liquid separation tank includes more than two exhaust ports.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0011] The electrolyte circulation tank, the electrolyte circulation pump, the separator tank and the electrolytic tank are connected in sequence by pipelines, and the electrolytic tank is then connected to the electrolyte circulation tank through pipelines. A separator tank exhaust port is arranged on the top of the separator tank. After all the electrolyte is gathered in the separator tank, the air in the electrolyte is gathered to the separator tank exhaust port and discharged due to the light density of air, thereby achieving the discharge of the air mixed in the electrolyte, avoiding the problems of air mixed in the electrolyte and pitting of the cathode copper, and improving the physical appearance quality of the cathode copper.

[0012] An exhaust port control valve is arranged at the exhaust port of the liquid separation tank. The exhaust port control valve is connected to the gas-liquid separation tank through a collecting pipe. To ensure that all the air can be discharged, a small amount of electrolyte mixed with air needs to be discharged together, which can improve the exhaust effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the connection relationship between the various components of the utility model. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0015] like Figure 1 A copper electrolytic liquid separation tank exhaust device comprises an electrolyte circulation tank 3, an electrolyte circulation pump 4, a liquid separation tank 1 and an electrolytic tank 2 connected in sequence through pipelines, the electrolytic tank 2 is further connected to the electrolyte circulation tank 3 through a pipeline, and a liquid separation tank exhaust port 1-1 is arranged on the top of the liquid separation tank 1.

[0016] When in use, the separator tank 1 is a key equipment of the copper electrolysis circulation system, and its main function is to evenly distribute the electrolyte in the electrolyte circulation tank 3 to each group of electrolytic cells 2 to achieve balanced distribution of the electrolyte. There are multiple groups of electrolytic cells 2 using electrolyte, and the electrolyte is only fully gathered in the separator tank 1. In order to separate the air mixed into the electrolyte, a separator tank exhaust port 1-1 is set at the top of the separator tank 1 to achieve the aggregation and discharge of air in the electrolyte. After the electrolyte mixed with air enters the separator tank 1, the air will be gathered and discharged toward the separator tank exhaust port 1-1 at the top of the separator tank 1 due to the lighter density of air. The separator tank 1 is relatively long, and multiple separator tank exhaust ports 1-1 need to be set. The number of separator tank exhaust ports 1-1 to be set is determined according to the length of the separator tank 1, and is generally set at intervals of 1000-1500mm.

[0017] An exhaust port control valve 1-2 is provided at the exhaust port 1-1 of the liquid separation tank, and the exhaust port control valve 1-2 is connected to the gas-liquid separation tank 1-4 through a collecting pipe 1-3, and the gas-liquid separation tank 1-4 is connected to an exhaust pipe 1-5. The discharge port of the gas-liquid separation tank 1-4 is connected to the electrolyte circulation tank 3 through a pipeline.

[0018] When the air mixed in the electrolyte is discharged from the liquid separation tank 1, in order to ensure that all the air can be discharged, a small amount of electrolyte mixed with air needs to be discharged together. In this case, it is necessary to set an exhaust port control valve 1-2 above the exhaust port to regulate the flow rate of the discharged electrolyte and air, so as to ensure that all the air can be discharged.

[0019] The gas-liquid separation tank 1-4 is a simple solution storage tank. The top of the gas-liquid separation tank 1-4 is provided with a solution inlet, an exhaust pipe 1-5, a level gauge detection port, an observation port, etc., and the bottom of the tank is provided with a liquid outlet. The collecting pipe 1-3 is connected to the solution inlet, and the electrolyte mixed with air enters the gas-liquid separation tank 1-4 to separate the air and the electrolyte. The air is discharged from the exhaust pipe 1-5, and the electrolyte is discharged from the liquid outlet at the bottom of the tank and returns to the electrolyte circulation tank 3. A level gauge is set at the level gauge detection port to detect the liquid level in the tank body; a cover plate is required to be set at the observation port to observe the situation in the separation tank at any time. According to the liquid inlet flow of the collecting pipe 1-3 and the liquid level of the separation tank, the exhaust port control valve 1-2 is adjusted to ensure the stable operation of the exhaust device.

[0020] Two electrolytic cells 2 form a group, and the electrolytic cells 2 include more than two groups. The liquid separation tank 1 is connected to all electrolytic cells 2 through pipelines, and all electrolytic cells 2 are connected to the electrolyte circulation tank 3 through pipelines. The electrolyte in all electrolytic cells 2 can be exhausted.

[0021] By arranging the liquid separation tank 1 with the facilities of the liquid separation tank exhaust port 1-1, the exhaust port control valve 1-2, the collecting pipe 1-3 and the gas-liquid separator, the air mixed in the electrolyte is collected and discharged at the position of the liquid separation tank 1, thereby solving the problems of air mixed in the electrolyte and pitting of the cathode copper, and improving the physical appearance quality of the cathode copper.

[0022] The above are only preferred embodiments of the present invention.

Claims

1. A copper electrolysis liquid separation tank exhaust device, characterized in that: The invention comprises an electrolyte circulation tank (3), an electrolyte circulation pump (4), a liquid separation tank (1) and an electrolytic tank (2) which are connected in sequence through pipelines. The electrolytic tank (2) is further connected to the electrolyte circulation tank (3) through a pipeline. A liquid separation tank exhaust port (1-1) is arranged at the top of the liquid separation tank (1).

2. The exhaust device for a copper electrolysis liquid separation tank according to claim 1, characterized in that: An exhaust port control valve (1-2) is provided at the exhaust port (1-1) of the liquid separation tank. The exhaust port control valve (1-2) is connected to the gas-liquid separation tank (1-4) through a collecting pipe (1-3). The gas-liquid separation tank (1-4) is connected to an exhaust pipe (1-5).

3. The exhaust device for a copper electrolysis liquid separation tank according to claim 1, characterized in that: The liquid discharge port of the gas-liquid separation tank (1-4) is connected to the electrolyte circulation tank (3) via a pipeline.

4. The exhaust device for a copper electrolysis liquid separation tank according to claim 1, characterized in that: Two electrolytic cells (2) form a group, and the electrolytic cells (2) include more than two groups. The liquid separation tank (1) is connected to all the electrolytic cells (2) through a pipeline, and all the electrolytic cells (2) are connected to the electrolyte circulation tank (3) through a pipeline.

5. The exhaust device for a copper electrolysis liquid separation tank according to claim 1, characterized in that: The liquid separation tank has at least two exhaust ports (1-1).

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