A copper supplementing structure for a spray copper tank

Abstract

The utility model discloses a kind of copper supplementing structure of spray copper dissolving tank, including the copper supplementing pipeline connected with spray copper dissolving tank, the copper supplementing pipeline is connected with at least two liquid inlet pipelines, adjacent liquid inlet pipeline is connected in parallel by connecting pipeline, the liquid inlet pipeline is communicated with the sewage pump in corresponding low tank, first control valve is mounted on the liquid inlet pipeline, second control valve is mounted on the connecting pipeline, cancel the original multiple copper supplementing pumps, using the suction of sewage pump original sewage pump Low-concentration copper electrolyte is sucked into liquid inlet pipeline, and the free switching of multiple liquid inlet pipelines can be realized by setting multiple control valves, so that the supply of different amounts of low-concentration copper electrolyte is realized.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic copper foil manufacturing technology, specifically to a copper replenishment structure for a spray copper melting tank. Background Technology

[0002] Currently, in the copper leaching process of electrolytic copper foil, a sludge pump draws electrolyte from a low-level tank to a copper leaching tank. The copper leaching pump then dissolves the electrolyte in the tank, creating a copper-ion-containing solution. This electrolyte flows back into the low-level tank to provide a stable electrolyte for the electrolytic cell. When the copper ion concentration in the low-level tank is low, copper replenishment is achieved by activating a copper replenishment pump, drawing the low-concentration solution from the low-level tank into the copper leaching tank. This allows the high-concentration solution in the copper leaching tank to overflow into the low-level tank, thus achieving a cyclical compensation of the electrolyte concentration. However, this entire copper replenishment process requires the copper replenishment pump to be continuously running, leading to increased energy consumption and reduced pump lifespan. Prolonged operation also increases the pump's failure rate, affecting its lifespan and potentially causing accelerated wear on the pump rotor and bearings, leading to pump malfunction or even damage, thus impacting the pump's uptime. Utility Model Content

[0003] This invention provides a copper replenishment structure for a spray copper melting tank, which can solve the problem that the copper replenishment pump in existing copper replenishment devices needs to run for a long time, which leads to easy damage to the copper replenishment pump and affects the utilization rate.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a copper replenishment structure for a spray copper dissolving tank, comprising a copper replenishment pipeline connected to the spray copper dissolving tank, wherein the copper replenishment pipeline is connected to at least two liquid inlet pipelines, adjacent liquid inlet pipelines are connected in parallel through connecting pipelines, the liquid inlet pipelines are connected to the sewage pumps in the corresponding low-level tanks, each liquid inlet pipeline is equipped with a first control valve, and the connecting pipelines are equipped with a second control valve. This eliminates the need for multiple copper replenishment pumps, utilizing the suction force of the original sewage pump to draw low-concentration copper electrolyte into the liquid inlet pipelines. Furthermore, by setting multiple control valves, multiple liquid inlet pipelines can be freely switched, thereby achieving the supply of different amounts of low-concentration copper electrolyte.

[0005] Preferably, the copper replenishment pipeline and / or liquid inlet pipeline are equipped with at least one stage of filtration device. By setting up the filtration device, the low-concentration copper electrolyte can be fully filtered, thus avoiding pipeline blockage and extending the maintenance cycle.

[0006] Preferably, both the first and second control valves are electrically controlled butterfly valves, which are uniformly controlled by a PLC control unit, enabling precise control of the valve opening and achieving precise flow control.

[0007] Preferably, a pressure sensor is installed in the liquid inlet pipeline. The pressure sensor is electrically connected to the PLC control unit and can control the opening degree of the first control valve and the second control valve according to the pressure of the liquid inlet pipeline monitored by the pressure sensor.

[0008] Preferably, the copper replenishment pipeline, liquid inlet pipeline, and connecting pipeline are all made of 316L stainless steel, which has excellent corrosion resistance.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] The original multiple copper replenishment pumps were eliminated, saving on the purchase cost of copper replenishment pumps. The suction force of the original sewage pump was used to draw low-concentration copper electrolyte into the inlet pipeline. Moreover, by setting multiple control valves, multiple inlet pipelines can be freely switched, thereby achieving the supply of different amounts of low-concentration copper electrolyte. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure label:

[0013] 1. Copper replenishment pipeline, 2. Liquid inlet pipeline, 3. First control valve, 4. Second control valve, 5. Connecting pipeline. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] This invention addresses the problem in existing copper replenishment devices where the copper replenishment pump requires prolonged operation, leading to pump damage and reduced uptime. Figure 1 As shown, the following technical solution is provided: a copper replenishment structure for a spray copper dissolving tank, including a copper replenishment pipeline 1 connected to the spray copper dissolving tank, the copper replenishment pipeline 1 being connected to at least two liquid inlet pipelines 2, adjacent liquid inlet pipelines 2 being connected in parallel via connecting pipelines 5, the liquid inlet pipelines 2 being connected to the corresponding sewage pump in the low-level tank, each liquid inlet pipeline 2 being equipped with a first control valve 3, and the connecting pipeline 5 being equipped with a second control valve 4. This eliminates the need for multiple copper replenishment pumps, utilizing the suction force of the original sewage pump to draw low-concentration copper electrolyte into the liquid inlet pipeline 2. Furthermore, by setting multiple control valves, multiple liquid inlet pipelines 2 can be freely switched, thereby achieving the supply of different amounts of low-concentration copper electrolyte.

[0016] Specifically, two inlet pipes 2 can be installed, with first control valves 3 on each pipe 2 designated as valve number one and valve number two, respectively. When valve number one, valve number two, and second control valve 4 are all open, both inlet pipes 2 simultaneously supply low-concentration copper electrolyte to the copper replenishment pipe 1. When valve number one is open and valve number two and its corresponding second control valve 4 are closed, the copper replenishment pipe 1 is supplied with electrolyte solely through inlet pipe 2 containing valve number one; conversely, when valve number one is closed and valve number two and its corresponding second control valve 4 are open, the copper replenishment pipe 1 is supplied with electrolyte solely through inlet pipe 2 containing valve number two. Therefore, multiple electrolyte supply methods are possible.

[0017] The copper replenishment pipeline 1, liquid inlet pipeline 2, and connecting pipeline 5 are all made of 316L stainless steel, which has excellent corrosion resistance. The valve seals on the first control valve 3 and the second control valve 4 can be made of perfluoroether rubber, which can withstand high temperatures of 200℃ and HF acid corrosion, thus adapting to high-temperature corrosive environments.

[0018] If there are more than two inlet pipes 2, the first control valve 3 and the second control valve 4 can be switched to different positions as needed.

[0019] The technical solution in this embodiment directly uses the negative pressure suction generated by the original sewage pump as the power source, without the need for additional power. With two inlet pipes 2, each set of equipment saves 2 pumps + installation costs ≈ 9,000 yuan. Moreover, assuming 24 hours a day, 365 days a year, it saves 20,000 kWh of electricity per year.

[0020] In this embodiment, at least one stage of filtration device is installed in the copper replenishment pipeline 1 and / or the liquid inlet pipeline 2. By setting up the filtration device, the low-concentration copper electrolyte can be fully filtered, thus avoiding pipeline blockage and extending the maintenance cycle. Specifically, the filtration device can be a coarse filter screen and / or a precision filter element, which can be set on the copper replenishment pipeline 1 to filter all the low-concentration copper electrolyte entering from the liquid inlet pipeline 2.

[0021] In this embodiment, both the first control valve 3 and the second control valve 4 are electrically controlled butterfly valves, uniformly controlled by a PLC control unit, which can precisely control the valve opening and achieve precise flow control. A pressure sensor is installed in the inlet pipeline 2, and the pressure sensor is electrically connected to the PLC control unit. The opening of the first control valve 3 and the second control valve 4 can be controlled based on the pressure monitored by the pressure sensor in the inlet pipeline 2.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] Furthermore, in this utility model, descriptions involving terms such as "primary," "secondary," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "primary" or "secondary" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. A copper replenishment structure for a spray copper melting tank, comprising a copper replenishment pipeline (1) connected to the spray copper melting tank, characterized in that, The copper replenishment pipeline (1) is connected to at least two liquid inlet pipelines (2). Adjacent liquid inlet pipelines (2) are connected in parallel through connecting pipelines (5). The liquid inlet pipelines (2) are connected to the sewage pump in the corresponding low-level tank. Each liquid inlet pipeline (2) is equipped with a first control valve (3), and the connecting pipeline (5) is equipped with a second control valve (4).

2. The copper replenishment structure of the spray copper melting tank according to claim 1, characterized in that: The copper replenishment pipeline (1) and / or liquid inlet pipeline (2) are equipped with at least one stage of filtration device.

3. The copper replenishment structure of the spray copper melting tank according to claim 2, characterized in that: The first control valve (3) and the second control valve (4) are both electrically controlled butterfly valves, which are uniformly controlled by the PLC control unit.

4. The copper replenishment structure of the spray copper melting tank according to claim 3, characterized in that: A pressure sensor is installed in the liquid inlet pipe (2), and the pressure sensor is electrically connected to the PLC control unit.

5. The copper replenishment structure of the spray copper melting tank according to any one of claims 1-4, characterized in that: The copper replenishment pipeline (1), liquid inlet pipeline (2) and connecting pipeline (5) are all made of 316L stainless steel.

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