Switchable copper dissolving tank process pipeline

Abstract

The utility model discloses a switchable copper dissolving tank process pipeline which comprises a copper dissolving tank, the self-circulation pipeline comprises a circulation liquid inlet pipe and a circulation liquid outlet pipe, one end of the circulation liquid inlet pipe is communicated with the upper part of the copper dissolving tank, and one end of the circulation liquid outlet pipe is communicated with the lower part of the copper dissolving tank; the self-circulating pump is connected to the circulating liquid outlet pipe; the plate heat exchanger is communicated with the other end of the circulating liquid inlet pipe and the other end of the circulating liquid outlet pipe; one end of the steam inlet pipe is communicated with the plate heat exchanger; one end of the steam outlet pipe is communicated with the plate heat exchanger; the cooling liquid inlet pipe is connected to the steam outlet pipe; and the cooling liquid outlet pipe is connected to the steam inlet pipe. The utility model has the beneficial effects that the high requirement of the prior art on temperature control is solved, and the quality of crude foil is improved.

Description

Technical Field

[0001] The utility model relates to the field of electrolytic copper foil production equipment, in particular to a process pipeline of a copper dissolving tank. Background Technique

[0002] Electrolytic copper foil is an important material for manufacturing copper clad laminates (CCL), printed circuit boards (PCB), and lithium-ion batteries. As the front-end process of copper foil production, the copper dissolving process has a significant impact on the efficiency and quality of copper foil. The copper dissolving process is generally as follows: copper wire is dissolved in sulfuric acid solution at a certain temperature to form copper sulfate solution, and the copper ions are maintained at a certain concentration. In this process, the control of temperature is extremely important, which will affect the copper dissolving rate and the activity of additives. It cannot be too low to affect the solubility of solutes, nor too high to affect the activity of additives. Therefore, the temperature stability is very important, while the existing high-efficiency processes are insufficient in this regard.

[0003] For example, the Chinese utility model patent publication number CN216550765U discloses a copper dissolving device for a copper dissolving tank, including a copper dissolving tank, a waste liquid tank, a filter, a purified liquid tank, a plate heat exchanger for purified liquid, a fine filter, a copper foil production machine, a circulation plate heat exchanger. The copper dissolving tank is connected to the circulation plate heat exchanger, the circulation plate heat exchanger is connected to the waste liquid tank, the waste liquid tank is connected to the filter through a waste liquid pump, the filter is connected to the purified liquid tank, one end of the purified liquid tank is connected to the fine filter through the plate heat exchanger for purified liquid, the fine filter is connected to the copper foil production machine, and the copper foil production machine is connected to the waste liquid tank through a pipeline; one end of the purified liquid tank is connected to the copper dissolving tank through the circulation plate heat exchanger. This device is used to solve the problem of reducing or stopping the large amount of steam required for rapid and sufficient dissolution of raw material copper at present, and does not involve the problem of temperature control. Content of the Utility Model

[0004] The problem to be solved by the utility model is that the temperature stability of the existing copper dissolving tank is not easy to control. Therefore, a switchable process pipeline for a copper dissolving tank is provided.

[0005] The technical solution of the utility model is: a switchable process pipeline for a copper dissolving tank, including: a copper dissolving tank; a self-circulation pipeline, the self-circulation pipeline includes a circulation inlet pipe and a circulation outlet pipe, one end of the circulation inlet pipe is communicated with the upper part of the copper dissolving tank, and one end of the circulation outlet pipe is communicated with the lower part of the copper dissolving tank; a self-circulation pump, the self-circulation pump is connected to the circulation outlet pipe; a plate heat exchanger, the plate heat exchanger is communicated with the other end of the circulation inlet pipe and the other end of the circulation outlet pipe; a steam inlet pipe, one end of the steam inlet pipe is communicated with the plate heat exchanger; a steam outlet pipe, one end of the steam outlet pipe is communicated with the plate heat exchanger; a coolant inlet pipe, the coolant inlet pipe is connected to the steam outlet pipe; a coolant outlet pipe, the coolant outlet pipe is connected to the steam inlet pipe.

[0006] The improvement of the above solution is that electromagnetic valves are connected to the coolant inlet pipe and the coolant outlet pipe.

[0007] A further improvement of the above solution is that electromagnetic valves are connected to the steam inlet pipe and the steam outlet pipe.

[0008] The beneficial effects of the present utility model are as follows: it solves the high demand for temperature control in the existing process and improves the quality of the raw foil; the solution circulates by itself through the circulation pipeline, which improves the copper dissolution rate; the transformation is simple and the cost is low; the electromagnetic valves are uniformly controlled by the background, and the temperature regulation is more energy-efficient. Description of the Drawings

[0009] Figure 1 It is a schematic diagram of the present utility model;

[0010] In the figure, 1 is a copper dissolution tank, 2 is a circulating liquid inlet pipe, 3 is a circulating liquid outlet pipe, 4 is a self-circulation pump, 5 is a plate heat exchanger, 6 is a steam inlet pipe, 7 is a steam outlet pipe, 8 is a coolant inlet pipe, 9 is a coolant outlet pipe, and 10 is an electromagnetic valve. Detailed Embodiments

[0011] The following further describes the present utility model with reference to the drawings.

[0012] As Figure 1 shown, a process pipeline of a switchable copper dissolution tank includes: a copper dissolution tank 1; a self-circulation pipeline, the self-circulation pipeline includes a circulating liquid inlet pipe 2 and a circulating liquid outlet pipe 3, one end of the circulating liquid inlet pipe is communicated with the upper part of the copper dissolution tank, and one end of the circulating liquid outlet pipe is communicated with the lower part of the copper dissolution tank; a self-circulation pump 4, the self-circulation pump is connected to the circulating liquid outlet pipe; a plate heat exchanger 5, the plate heat exchanger is communicated with the other end of the circulating liquid inlet pipe and the other end of the circulating liquid outlet pipe; a steam inlet pipe 6, one end of the steam inlet pipe is communicated with the plate heat exchanger; a steam outlet pipe 7, one end of the steam outlet pipe is communicated with the plate heat exchanger; a coolant inlet pipe 8, the coolant inlet pipe is connected to the steam outlet pipe; a coolant outlet pipe 9, the coolant outlet pipe is connected to the steam inlet pipe.

[0013] The solution enters the self-circulation pump 1 from the bottom of the copper dissolution tank, is pumped into the plate heat exchanger 2, and then exchanges heat with the steam input from the steam pipeline and the coolant input from the coolant inlet pipe. The solution that has completed the heat exchange enters the copper dissolution tank from the top through the self-circulation pipe 5 to complete the temperature control.

[0014] As a preferred example of the present utility model, electromagnetic valves 10 are connected to the coolant inlet pipe and the coolant outlet pipe, so that the flow rate of the coolant can be controlled in the background. Electromagnetic valves are connected to the steam inlet pipe and the steam outlet pipe, so that the flow rate of the steam can be controlled in the background. Furthermore, it can be determined whether to increase or decrease the temperature.

[0015] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features, and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A process pipeline for a switchable copper dissolving tank, characterized by comprising: Copper dissolving tank (1); Self-circulation pipeline, the self-circulation pipeline includes a circulating liquid inlet pipe (2) and a circulating liquid outlet pipe (3), one end of the circulating liquid inlet pipe is communicated with the upper part of the copper dissolving tank, and one end of the circulating liquid outlet pipe is communicated with the lower part of the copper dissolving tank; Self-circulation pump (4), the self-circulation pump is connected to the circulating liquid outlet pipe; Plate heat exchanger (5), the plate heat exchanger is communicated with the other end of the circulating liquid inlet pipe and the other end of the circulating liquid outlet pipe; Steam inlet pipe (6), one end of the steam inlet pipe is communicated with the plate heat exchanger; Steam outlet pipe (7), one end of the steam outlet pipe is communicated with the plate heat exchanger; Coolant inlet pipe (8), the coolant inlet pipe is connected to the steam outlet pipe; Coolant outlet pipe (9), the coolant outlet pipe is connected to the steam inlet pipe.

2. The process pipeline of a switchable copper dissolving tank according to claim 1, characterized in that: Solenoid valves (10) are connected to the coolant inlet pipe and the coolant outlet pipe.

3. The process pipeline of a switchable copper dissolving tank according to claim 1, characterized in that: Solenoid valves are connected to the steam inlet pipe and the steam outlet pipe.

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