Novel liquid supply and flow guide device of anode tank

Abstract

A liquid supply tank is arranged at the bottom of the anode tank, a trapezoidal flow guide plate is fixedly arranged in the liquid supply tank, a flow guide device is additionally arranged at an upper opening of the liquid supply tank, and flow guide holes which are uniformly distributed and densely distributed are uniformly formed in two sides of the flow guide device. The flow guide device is used for blocking and shunting the vertically upward flowing electrolyte, so that the reverse stress on the electrolyte is reduced, the electrolyte flows more smoothly and uniformly among the interelectrode intervals, the phenomenon that the pressure, the flow speed and the components of the electrolyte are not uniform in the electrolyte supply process is avoided, and the production quality and efficiency of the copper foil are improved. The included angle between the connecting line of the center of the flow guide hole and the center of the liquid supply groove and the horizontal plane is designed to be 45 degrees, so that the electrolyte can be prevented from being hindered by the anode plate during flowing and can flow into the space between electrodes to the maximum extent, the 45-degree included angle is the optimal choice, and the electrolyte can be uniformly conveyed at the maximum efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic copper foil production, and relates to a novel liquid supply and flow guiding device for an anode tank. Background Art

[0002] Copper foil is an important material for the manufacture of copper-clad laminates and printed circuit boards, as well as lithium batteries. In today's rapidly developing electronic information industry, electrolytic copper foil is known as the basic material for signal and power transmission of electronic products.

[0003] The use of electrolysis to produce copper foil is the current mainstream method. In particular, copper foil used in lithium batteries is produced by electrolysis. Since the thickness of lithium battery copper foil is only between 0.045-0.06mm, the anode tank is the core component of the production equipment, and its processing accuracy directly affects the quality of the copper foil. For example, the processing accuracy of the arc surface of the anode tank body will affect the dimensional accuracy of the distance between the positive and negative electrodes during the electrolysis process, thereby affecting the quality of the copper foil produced, and defects such as uneven thickness and density of the copper foil will occur.

[0004] In addition, there are many factors that affect the quality of copper foil. The core equipment of the foil machine is the anode tank and the cathode roller. A rollable cathode roller is provided in the semicircular anode tank. There is electrolyte between the anode tank and the cathode roller. Copper foil is produced under the action of positive and negative electrodes during the rolling of the cathode roller.

[0005] Currently, the electrolyte is supplied through the supply port at the bottom of the anode tank. The electrolyte faces the surface of the cathode roller, so that the electrolyte is subjected to reverse force. The electrolyte is then squeezed into the inter-electrode distance on both sides of the supply port and discharged from the overflow port at the top of the anode tank to complete the electrolysis.

[0006] The flow state of the electrolyte between the positive and negative electrodes has uneven pressure, fast and slow flow rate, uneven electrode spacing or electrolyte composition, etc., which will affect the production quality of copper foil. Utility Model Content

[0007] The utility model discloses a novel liquid supply and flow guiding device for an anode tank, which solves the problems of uneven electrolyte supply pressure, flow rate and composition existing in the prior art.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A novel liquid supply and diversion device for an anode tank comprises an anode tank and a cathode roller, wherein a relatively rotatable cathode roller is mounted inside the anode tank, a liquid supply tank is arranged at the lower part of the anode tank, a plurality of first liquid supply ports for supplying electrolyte are evenly arranged at the bottom of the liquid supply tank, a trapezoidal guide plate (partition) is fixedly arranged inside the liquid supply tank, a diversion device is arranged at the upper part of the guide plate, i.e., the bottom of the anode tank body, a second liquid supply port is arranged at the bottom of the diversion device, and a plurality of diversion holes for supplying electrolyte are evenly and densely arranged on both sides of the diversion device to realize the diversion of electrolyte.

[0010] As a further solution of the utility model: the cross section of the guide device is semicircular and long.

[0011] As a further solution of the utility model: two rows of parallel, evenly distributed and dense multiple flow guide holes are provided on both sides of the flow blocking device.

[0012] As a further solution of the utility model: the angle between the center of the guide hole and the center of the liquid supply tank and the horizontal is 30-50 degrees, which is determined according to the design principle.

[0013] As a further solution of the utility model: if the trapezoidal guide plate in the liquid supply tank at the lower part of the anode tank body is not taken into consideration during the design, the guide device can be designed with a trapezoidal guide plate (partition plate).

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The anode tank body is provided with a cathode roller that can roll relatively, a liquid supply tank is provided at the bottom of the anode tank, and a plurality of first liquid supply ports for supplying electrolyte are evenly provided at the bottom of the liquid supply tank. A flow guide device is fixed at the top of the liquid supply tank, and flow guide holes are provided on both sides of the flow guide device. The flow guide device can block and divert the electrolyte flowing upward, reducing the reverse force of the cathode roller on the electrolyte. The flow guide holes on both sides of the flow guide device can evenly guide and transport the electrolyte to the gap between the two sides of the electrodes, avoiding the uneven pressure, flow rate and composition of the electrolyte during the liquid supply process, and improving the quality and efficiency of copper foil production.

[0016] 2. The guide plate is arc-shaped, which conforms to the liquid flow dynamics, making the electrolyte have a higher flow efficiency.

[0017] 3. The optimal angle between the center of the guide hole and the center of the liquid supply tank and the horizontal angle is 30-50 degrees (determined according to the design requirements), which requires the maximum efficiency and uniform delivery of electrolyte.

[0018] 4. A plurality of first liquid supply ports are provided at the bottom of the supply trough, and a trapezoidal guide plate is provided between the first liquid supply port and the second liquid supply port. The trapezoidal guide plate can separate the liquid supply segments of the first liquid supply port in the length direction, and can adjust the pressure of each segment in the length direction of the liquid supply trough to ensure consistency of the liquid supply pressure, which is beneficial to improving the quality of the produced copper foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] In the attached picture:

[0021] Figure 1 The utility model is a structural schematic diagram of a novel liquid supply and flow guiding device of an anode tank located between the anode tank and the cathode roller.

[0022] Figure 2 The utility model is a schematic side view of the structure of a novel liquid supply and diversion device for an anode tank.

[0023] Figure 3 The utility model is a schematic diagram of the top view of the structure of a novel liquid supply and diversion device of an anode tank.

[0024] Figure 1 Marking comments:

[0025] 1. cathode roller; 2. flow guide device; 3. flow guide hole; 4. anode tank; 5. flow guide plate; 6. liquid supply tank; 7. first liquid supply port; 8. second liquid supply port; DETAILED DESCRIPTION

[0026] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present embodiment disclosure as detailed in the appended claims.

[0027] It should be noted that all directional indications in the embodiments (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, the descriptions of "first", "second", etc. in the embodiments are only for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0030] like Figure 1-3 As shown:

[0031] A novel liquid supply and diversion device for an anode tank comprises an anode tank 4 and a cathode roller 1. A relatively rotatable cathode roller 1 is arranged inside the anode tank 4. A liquid supply tank 6 is arranged at the bottom of the anode tank 4. A plurality of first liquid supply ports 7 for supplying electrolyte are evenly arranged at the bottom of the liquid supply tank 6.

[0032] A guide plate 5 is provided at the bottom of the liquid supply tank 6, a second liquid supply port 8 is provided at the bottom of the anode tank 4, a guide device 2 is provided on the second liquid supply port 8, and a plurality of guide holes 3 for guiding electrolyte are evenly provided on both sides of the guide device 2.

[0033] Preferably, the cross section of the flow guiding device 2 is a semicircular strip.

[0034] Preferably, two rows of parallel and densely packed flow guide holes 3 are provided on both sides of the flow guide device 2 .

[0035] Preferably, the angle between the center line of the guide hole 3 and the horizontal line is 30-50 degrees. The specific optimal guide angle is determined by design calculation.

[0036] Preferably, a plurality of guide plates 5 may be provided at the bottom of the guide device 2, and the guide plates 5 are trapezoidal, and the trapezoidal guide plates 5 are arranged in the liquid supply tank 6, that is, between the first liquid supply port 7 and the second liquid supply port 8. The trapezoidal guide plates 5 can separate the electrolyte separately, and the pressure difference and flow rate in the length direction of the liquid supply can be conveniently adjusted by adjusting the valve on the liquid supply pipeline, so that the supply state of the electrolyte is greatly improved, and the production quality of the copper foil is improved.

[0037] In practical application:

[0038] A cathode roller 1 that can rotate relatively is set inside the anode tank 4, a liquid supply tank 6 is set at the bottom of the anode tank 4, and a plurality of first liquid supply ports 7 for supplying electrolyte are evenly arranged at the bottom of the liquid supply tank 6. A flow guide device 2 is set at the bottom of the anode tank 4, and a plurality of flow guide holes 3 for achieving uniform and dense electrolyte are evenly arranged on both sides of the flow guide device 2. The flow guide holes 3 on both sides of the flow guide device 2 can evenly guide and transport the electrolyte to the inter-electrode spacing, avoiding the uneven pressure, flow rate and composition of the electrolyte during the liquid supply process, and improving the quality and efficiency of copper foil production.

[0039] The cross section of the flow guide device 2 is semicircular, which conforms to the liquid flow dynamics, so that the electrolyte has a higher flow efficiency.

[0040] The angle between the center line of the guide hole 3 and the horizontal line is 30-50 degrees. The best liquid supply angle is determined by design calculation, so that the electrolyte can be evenly transported with maximum efficiency.

[0041] A plurality of trapezoidal guide plates 5 may also be provided at the bottom of the flow guide device 2. The trapezoidal guide plates 5 are arranged inside the liquid supply tank 6, that is, between the first liquid supply port 7 and the second liquid supply port 8. The trapezoidal guide plates 5 can separate the liquid supply segments in each length direction, which is convenient for adjusting the pressure difference of the electrolyte in the length direction of the second liquid supply port 8 at the bottom of the anode tank 4, which is beneficial to improving the quality and efficiency of copper foil production. If the trapezoidal guide plates 5 are already designed in the liquid supply tank, the flow guide device can be designed to be in a form without the trapezoidal guide plates 5.

[0042] Finally, it should be noted that the above disclosure is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model. The scope of this application is limited only by the attached claims.

Claims

1. A novel liquid supply and flow guiding device for an anode tank, comprising an anode tank (4) and a cathode roller (1), wherein a cathode roller (1) is mounted inside the anode tank (4) and can rotate relatively thereto, a liquid supply tank (6) is arranged at the bottom of the anode tank (4), and a plurality of first liquid supply ports (7) for supplying electrolyte are evenly arranged at the bottom of the liquid supply tank (6), Features: A flow guide device (2) is fixedly provided on the upper part of the liquid supply tank (6), the anode tank (4) is provided with a second liquid supply port (8) at the bottom of the flow guide device (2), and a plurality of evenly distributed and dense flow guide holes (3) are evenly provided on both sides of the flow guide device (2).

2. A novel liquid supply and flow guiding device for an anode tank according to claim 1, Features: The flow guide device (2) has a cross-section in the shape of a semicircular arc and an elongated strip.

3. A novel liquid supply and flow guiding device for an anode tank according to claim 1, Features: Two rows of parallel multiple flow guide holes (3) are provided on both sides of the flow guide device (2).

4. A novel liquid supply and flow guiding device for an anode tank according to claim 1, Features: The angle between the center of the guide hole (3) and the center of the liquid supply groove (6) and the horizontal is 30-50 degrees.

5. A novel liquid supply and flow guiding device for an anode tank according to claim 1, Features: The angle between the center of the guide hole (3) and the center of the liquid supply groove (6) and the horizontal is 45 degrees.

6. A novel liquid supply and flow guiding device for an anode tank according to claim 1, Features: A plurality of trapezoidal flow guide plates (5) for electrolyte are evenly arranged inside the liquid supply tank (6).

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