A steady flow liquid supply device for a foil production machine

Abstract

The utility model discloses a steady flow liquid feeding device of green foil machine, including liquid storage mechanism, the inside of liquid storage mechanism is provided with liquid storage cavity, the upper end of liquid storage cavity is provided with the liquid inlet for being linked with the anode groove of green foil machine, the lower part of the front and back side wall of liquid storage mechanism is connected with at least one liquid inlet pipe, the front and back side wall of liquid storage mechanism is alternately staggered and is provided with at least two steady flow plates, the steady flow plate is obliquely upwards and is provided, and the steady flow plate is between liquid inlet pipe, the steady flow plate between adjacent and the steady flow plate and liquid inlet are all formed steady flow area, through setting up the steady flow plate in the liquid storage cavity and forming steady flow area, the flow velocity of the copper sulfate solution of liquid inlet pipe is adjusted, makes the copper sulfate solution steady and evenly through liquid inlet.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic copper foil production technology, specifically to a flow stabilizer for a foil production machine. Background Technology

[0002] With the increasing popularity of electric vehicles, the use of lithium batteries is growing, leading to a greater demand for lithium battery copper foil. The thickness of the copper foil is also decreasing, thus requiring higher areal density. Traditional foil production machines (such as...) Figure 3 The system includes a liquid distributor and a liquid inlet. The liquid distributor distributes the copper sulfate solution into the liquid inlet, which then flows into the anode tank of the foil-making machine for electrolysis. Traditional liquid distributors consist of multiple inlet pipes, each with a valve. The unit flow rate across the effective liquid inlet cross-section is made uniform by adjusting the valves on each pipe. For example, the technical solutions in publication numbers CN223063672U, CN216688358U, CN117661045A, and CN115679393A all use a structure with several inlet pipes. However, in actual operation, it is necessary to first measure the product data and then adjust the valves by feel and experience based on the data. The adjustment cycle is long and not conducive to lean production. If the liquid distributor does not distribute the solution evenly, it will lead to abnormal surface density of the electrolyzed copper foil, thereby affecting product quality and hindering market competitiveness and cost reduction and efficiency improvement. Utility Model Content

[0003] This invention provides a flow stabilizer for a foil-making machine, which can solve the problems of existing foil-making machine liquid supply systems that require adjusting many valves for electrolyte control and have excessively fast and uneven liquid supply speeds.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a flow stabilizer for a foil-making machine, comprising a liquid storage mechanism, wherein a liquid storage chamber is provided inside the liquid storage mechanism, and a liquid inlet is provided at the upper end of the liquid storage chamber for connecting with the anode tank of the foil-making machine. At least one inlet pipe is connected to the lower part of the front and rear side walls of the liquid storage mechanism. At least two flow stabilizers are alternately and staggeredly arranged on the front and rear side walls of the liquid storage mechanism. The flow stabilizers are arranged obliquely upward, and a flow stabilization zone is formed between the flow stabilizer and the inlet pipe, between adjacent flow stabilizers, and between the flow stabilizer and the liquid inlet. By setting the flow stabilizer in the liquid storage chamber to form a flow stabilization zone, the flow rate of the copper sulfate solution entering through the inlet pipe is adjusted, so that the copper sulfate solution passes through the liquid inlet stably and uniformly.

[0005] Preferably, the front and rear side walls of the liquid storage mechanism are inclined so that the cross-section of the liquid storage mechanism gradually increases from top to bottom, which is beneficial to ensure that the copper sulfate solution entering through the inlet pipe can flow steadily in the lower part of the liquid storage mechanism.

[0006] Preferably, the inlet pipe is inclined to the front and rear side walls, with one end connected to the front and rear side walls being lower than the other end. This facilitates the copper sulfate solution to enter the steady flow zone at an angle and form a vortex to reduce the impact force.

[0007] Preferably, the ends of the flow stabilizer plate extend to positions close to the front and rear sidewalls on the opposite side, forming a relatively narrow flow gap between the flow stabilizer plate and the front and rear sidewalls on the opposite side. This facilitates the reduction of impact force by creating eddies when the copper sulfate solution enters the next flow stabilizer zone.

[0008] Preferably, the bottom of the liquid storage mechanism is provided with at least one discharge port to facilitate the rapid discharge of copper sulfate solution from the liquid storage mechanism.

[0009] Preferably, the bottom surface of the liquid storage mechanism includes a horizontal part in the middle and inclined parts at both ends of the horizontal part. The discharge port is connected to the horizontal part, and the inclined parts have a reflux function, which gathers the copper sulfate solution at the bottom of the liquid storage mechanism towards the middle, so that there will be no residue when the liquid is discharged from the discharge port.

[0010] Compared with the prior art, the beneficial effects of this utility model are: With a simple structure, a flow stabilizing plate is set in the liquid storage chamber to form a flow stabilizing zone, which regulates the flow rate of the copper sulfate solution entering through the inlet pipe, so that the copper sulfate solution passes through the liquid inlet stably and evenly. Compared with traditional liquid feeders, its advantages are simple structure and non-powered mechanism, which will not cause power consumption. At the same time, it does not require human intervention. The stability of the copper sulfate flow depends on its own structure, rather than the traditional liquid feeder which requires manual adjustment of valves based on product measurement results and experience. This greatly improves the equipment uptime and is more conducive to operation. Compared with the high manufacturing cost of traditional liquid feeders, it is more conducive to cost reduction and efficiency improvement. Attached Figure Description

[0011] Figure 1 This is based on the main view structural diagram of this utility model; Figure 2 This is a side sectional view of the present invention; Figure 3 This is a prior art structural diagram of the present invention.

[0012] Figure label: 1. Liquid inlet; 11. Front and rear side walls; 2, 3: Liquid inlet pipes; 4, 5: Liquid outlets; 6, 7: Flow stabilizers; 8. Sloping section; 9. Horizontal section; 10. Flow stabilizer zone; 20. Liquid storage mechanism. Detailed Implementation

[0013] 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.

[0014] This invention addresses the problems in existing foil feeding systems, such as the need to adjust numerous valves for electrolyte control and excessively fast and uneven feeding speeds. Figures 1-2 As shown, the following technical solution is provided: a flow stabilizer for a foil-making machine, comprising a liquid storage mechanism 20, wherein a liquid storage chamber is provided inside the liquid storage mechanism 20, and a liquid inlet 1 for connecting to the anode tank of the foil-making machine is provided at the upper end of the liquid storage chamber. At least one inlet pipe 2, 3 is connected to the lower part of the front and rear side walls 13 of the liquid storage mechanism 20. At least two flow stabilizers 6, 7 are alternately staggered on the front and rear side walls 13 of the liquid storage mechanism 20. The flow stabilizers 6, 7 are obliquely upward, and a flow stabilization zone 10 is formed between the flow stabilizers 6, 7 and the inlet pipes 2, 3, between adjacent flow stabilizers 6, 7, and between the flow stabilizers 6, 7 and the liquid inlet 1. By setting the flow stabilizers 6, 7 in the liquid storage chamber to form the flow stabilization zone 10, the flow rate of the copper sulfate solution entering through the inlet pipes 2, 3 is adjusted, so that the copper sulfate solution passes through the liquid inlet 1 stably and uniformly.

[0015] Specifically, after the copper sulfate solution enters through the inlet pipe, it passes through three stages of flow stabilization zones. Utilizing the guiding and buffering effect of the upward-sloping flow stabilizing plates, the solution velocity is reduced from the traditional 1.5-2.0 m / s to 0.5-0.8 m / s, with velocity fluctuations controlled within ±1.5%, preventing electrolyte disturbance caused by high-speed solution impacting the anode tank. The storage mechanism 20 can be made of 316L stainless steel, with the upper liquid inlet 1 being a rectangular opening that is sealed to the inlet end of the foil-making machine's anode tank. Two inlet pipes 2 and 3 are symmetrically arranged on the lower part of the front and rear side walls of the liquid mechanism 20. Inlet pipes 2 and 3 are connected to an external copper sulfate solution supply pump via flanges, and the supply pressure is stabilized at 0.2-0.3 MPa. Two flow stabilizers are provided, made of 316L stainless steel, 5 mm thick, with a width matching the width of the storage chamber. The first flow stabilizer is located near inlet pipes 2 and 3, fixed to the inner side of the front side wall at a 30° inclination angle; the second flow stabilizer is fixed to the inner side of the rear side wall at a 30° inclination angle. The ends of the flow stabilizers 6 and 7 extend to positions close to the opposite front and rear side walls 13, forming a relatively narrow flow gap between the flow stabilizers 6 and 7 and the opposite front and rear side walls 13. This facilitates eddy currents to reduce impact force when the copper sulfate solution enters the next flow stabilizer zone 10.

[0016] In this embodiment, the front and rear side walls 13 of the liquid storage mechanism 20 are inclined so that the cross-section of the liquid storage mechanism 20 gradually increases from top to bottom. This is beneficial to ensure that the copper sulfate solution entering through the inlet pipes 2 and 3 can flow steadily in the lower part of the liquid storage mechanism 20, while the upper cross-sectional area is reduced, which can guide the solution that has passed through the steady flow to converge in the middle, ensuring that the flow rate is uniform throughout the entire width of the upper liquid outlet.

[0017] In this embodiment, the inlet pipes 2 and 3 are inclined to the front and rear side walls 13, with one end connected to the front and rear side walls 13 being lower than the other end. This facilitates the copper sulfate solution to enter the steady flow zone 10 at an angle downwards, forming a vortex to reduce the impact force. Specifically, the downward inlet direction causes the solution to flow downwards along the side walls, avoiding direct impact on the bottom, reducing solution splashing, and preventing solution loss and equipment corrosion caused by splashing. The inlet pipes 2 and 3 are connected to the front and rear side walls 13 of the liquid storage mechanism 20 by flanges, with the inlet end of the inlet pipe being higher than the outlet end, and the inclination angle being 20°.

[0018] In this embodiment, the bottom of the liquid storage mechanism 20 is provided with at least one discharge port 4, 5 to facilitate the rapid discharge of copper sulfate solution in the liquid storage mechanism 20. The bottom surface of the liquid storage mechanism 20 includes a horizontal part 9 in the middle and inclined parts 8 at both ends of the horizontal part 9. The discharge ports 4, 5 are connected to the horizontal part 9. The inclined parts 8 have a reflux function, which gathers the copper sulfate solution at the bottom of the liquid storage mechanism 20 towards the middle, so that there is no residue when the discharge ports 4, 5 discharge.

[0019] As shown in the specific operation process of this embodiment: Solution supply: Turn on the external copper sulfate solution supply pump to send a copper sulfate solution with a concentration of 2.0 mol / L and a temperature of 40℃ into the storage mechanism 20 through the inlet pipe; the solution flows obliquely downward along the inclined inlet pipes 2 and 3 into the lower part of the storage chamber, diffuses in the expansion space formed by the inclined side wall, and the flow velocity decreases from 1.8 m / s to 1.0 m / s. Multi-stage flow stabilization: The solution first enters the first flow stabilization zone, where it is blocked by the upward-sloping flow stabilization plate, forming a micro-vortex and reducing the flow velocity to 0.8 m / s. Then, it passes through a narrow 15 mm gap between the first flow stabilization plate and the rear sidewall, where a throttling effect occurs, causing the flow velocity to briefly rise to 1.0 m / s before entering the second flow stabilization zone, where the flow velocity further decreases to 0.7 m / s. Next, it passes through a narrow 15 mm gap between the second flow stabilization plate and the front sidewall, entering the third flow stabilization zone, where the flow velocity decreases to 0.6 m / s. Finally, it flows evenly into the anode tank of the foil production machine along the upper liquid inlet 1. Unloading and Maintenance: When solution replacement or equipment maintenance is required, turn off the supply pump and open valves 4 and 5 at the bottom unloading ports. The solution in the storage chamber will converge to the horizontal part along the inclined surface under gravity and be quickly discharged through the unloading ports. The emptying process will be completed within 9-10 minutes. In case of emergency such as abnormal solution concentration, the unloading ports can be opened directly to empty the solution and reduce the production of unqualified products. During maintenance, the bottom surface and flow stabilizer plate can be rinsed with a high-pressure water gun. The cleaning process will be completed within 5 minutes, and the residual impurity content will be ≤0.1mg / L.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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 scope of protection claimed by this utility model.

Claims

1. A flow stabilizer for a foil-making machine, characterized in that, The system includes a liquid storage mechanism (20), which has a liquid storage chamber inside. The upper end of the liquid storage chamber is provided with an upper liquid inlet (1) for connecting with the anode tank of the foil production machine. At least one liquid inlet pipe (2, 3) is connected to the lower part of the front and rear side walls (13) of the liquid storage mechanism (20). At least two flow stabilizing plates (6, 7) are alternately staggered on the front and rear side walls (13) of the liquid storage mechanism (20). The flow stabilizing plates (6, 7) are arranged obliquely upward, and a flow stabilizing zone (10) is formed between the flow stabilizing plates (6, 7) and the liquid inlet pipe (2, 3), between adjacent flow stabilizing plates (6, 7), and between the flow stabilizing plates (6, 7) and the upper liquid inlet (1).

2. The flow stabilizer for the foil-making machine according to claim 1, characterized in that: The front and rear sidewalls (13) of the liquid storage mechanism (20) are inclined so that the cross-section of the liquid storage mechanism (20) gradually increases from top to bottom.

3. The flow stabilizer for the foil-making machine according to claim 1, characterized in that: The inlet pipe (2, 3) is inclined to the front and rear side walls (13), with one end connected to the front and rear side walls (13) being lower than the other end.

4. The flow stabilizer for the foil-making machine according to claim 1, characterized in that: The ends of the flow stabilizers (6, 7) extend to the front and rear sidewalls (13) near the opposite side.

5. The flow stabilizer for the foil-making machine according to any one of claims 1-4, characterized in that: The bottom of the liquid storage mechanism (20) is provided with at least one discharge port (4, 5).

6. The flow stabilizer for the foil-making machine according to claim 5, characterized in that: The bottom surface of the liquid storage mechanism (20) includes a horizontal part (9) located in the middle and inclined parts (8) located at both ends of the horizontal part (9), and the unloading ports (4, 5) are connected to the horizontal part (9).

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