Electrolyte supply nozzle device for metal foil forming device

Abstract

The present invention relates to an electrolyte supply nozzle device for a metal foil forming device, which is improved to be capable of uniformly discharging electrolyte in an anode tank at the lower part of a drum. The present invention provides an electrolytic solution supply nozzle device for a metal foil forming apparatus, comprising: one or more electrolytic solution supply pipes provided toward a drum of the electrolytic solution supply nozzle device to supply an electrolytic solution; and an electrolyte chamber which is provided at the upper end of the electrolyte supply pipe, and which is provided so as to gather the inflowing electrolyte to form mixed flow and mixing, and in which a plurality of electrolyte discharge holes inclined at a predetermined angle are formed in the upper part of the electrolyte chamber.

Description

Technical Field

[0001] The present invention relates to an electrolyte supply nozzle device for a metal foil forming device, and more particularly, to an electrolyte supply nozzle device for a metal foil forming device which is improved to be able to uniformly discharge electrolyte into an anode tank at the bottom of a drum. Background Art

[0002] Metal foils such as copper foils having a thickness of several μm to several tens of μm used in many electrical and chemical products such as secondary batteries can be produced by an electrolysis method.

[0003] Figure 1 2 is a structural diagram of a metal foil forming apparatus for forming the metal foil by an electrolytic method.

[0004] Reference Figure 1 The metal foil forming apparatus 1 includes a drum roll 2 as a cathode electrode (anode), and an electrolytic cell 5 that rotatably supports the drum roll 2 .

[0005] The electrolytic cell 5 includes a frame 6, a pair of anode bases 18 and 19, a plurality of support beams 15, a pair of current-carrying bus bars 21, and an electrolyte supply nozzle 25.

[0006] In addition, the frame 6 has a front wall and a back wall (not shown) that rotatably support the rotating shaft (not shown) of the drum 2, a left side wall 7 and a right side wall 8 that are upright on the left and right sides of the drum 2, and left and right inner curved walls 11 and 12 that are spaced apart from the lower part of the outer peripheral surface of the drum 2.

[0007] In addition, the pair of anode bases 18 and 19 are formed to be curved in a manner spaced apart from the lower portion of the outer peripheral surface of the drum 2 and are divided into a left anode base 18 relatively closer to the left side wall 7 and a right anode base 19 relatively closer to the right side wall 8.

[0008] On the other hand, a plurality of relatively thin electrode plates (not shown) are attached to the inner side surfaces of a pair of anode bases 18 and 19 facing the outer peripheral surface of the drum 2 .

[0009] In addition, spaced-apart gaps 20 are formed between the plurality of electrode plates and the outer circumferential surface of the drum 2 .

[0010] The plurality of support beams 15 are members that support the pair of beams 18 and 19 to be spaced apart from the right and left inner curved walls 11 and 12 , and have a substantially I-shaped cross section and extend parallel to the Y axis.

[0011] Furthermore, the plurality of support beams 15 are arranged to be spaced apart at equal angular intervals with respect to the rotation center of the drum 2 .

[0012] In addition, a pair of power busbars 21 and 22 are used to supply current to a pair of anode bases 18 and multiple electrode plates attached thereto. One of the power busbars 21 and 22 can be electrically connected to the left end of the left anode base 18, and the other power busbar 22 can be electrically connected to the right end of the right anode base 19.

[0013] Furthermore, the electrolyte supply nozzle 25 supplies the electrolyte to the gap 20 , is disposed between the left and right anode bases 18 , 19 , and extends parallel to the Y axis.

[0014] In addition, in order to prevent the frame 6 from being corroded by exposure to the electrolyte, the inner side surfaces of the front wall and the back wall (not shown) of the frame 6 and the upper side surfaces of the left hole and the right inner curved walls 11 and 12 are coated with rubber.

[0015] Furthermore, in the electrolytic cell 5 , a pair of anode bases 18 , 19 are supported by a plurality of spaced-apart support beams 15 .

[0016] On the other hand, the electrolytic copper foil forming process is a redox reaction process, in which a specified proportion of copper sulfate is transported to the anode tank through a pipeline, and copper foil is formed on the cathode through the movement characteristics of the anode and cathode charges.

[0017] In particular, it is important to enable the electrolyte (copper sulfate liquid of a predetermined ratio) to be uniformly and continuously conveyed and supplied to the anode tank from the bottom in a wide direction of the metal foil forming apparatus.

[0018] In addition, in the past, a buffer defoaming tube was set in the electrolyte delivery tube, a diaphragm regulating valve for independently adjusting the flow rate was set at the lower end of the defoaming tube, and a duck bill tube or a mixing cylinder was set at the inlet.

[0019] In addition, the duckbill tube will cause shape changes after long-term operation, and accordingly needs to be replaced frequently.

[0020] At the same time, the diaphragm regulating valve that independently adjusts the flow rate requires a high level of technical skills from the operator (the valve opening and closing amount is adjusted by experience and feeling), and the duckbill tube structure increases the flow rate of the electrolyte and causes a greater impact on the cathode drum 2, and accordingly forms vortices (or eddies) and bubbles at the inlet, affecting the uniformity of the discharged electrolyte.

[0021] Prior art literature

[0022] Patent Literature

[0023] (Patent Document 0001) 1: Korean Patent No. 10-0762050 (granted on September 19, 2007) Electrolyte supply mechanism and electrolytic copper foil manufacturing device having the same

[0024] (Patent Document 0002) 2: Korean Patent No. 10-2358681 (granted on January 27, 2022) Electrolytic cell and metal foil forming device having the same Summary of the invention

[0025] Technical issues

[0026] The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an electrolyte supply nozzle device for a metal foil forming apparatus that can discharge electrolyte uniformly without forming vortices and bubbles.

[0027] Technical Solution

[0028] In order to achieve the above-mentioned purpose, the present invention provides an electrolyte supply nozzle device for a metal foil forming device, characterized in that it includes: one or more electrolyte supply pipes, which are arranged toward the roller of the electrolyte supply nozzle device to supply electrolyte; and an electrolyte chamber, which is arranged at the upper end of the electrolyte supply pipe and is configured to allow the inflowing electrolyte to gather to form a mixed flow and mix, and a plurality of electrolyte discharge holes inclined at a predetermined angle are formed in the upper part of the electrolyte chamber.

[0029] In the present invention, the electrolyte supply pipe is formed in a tube shape, and the electrolyte chamber is provided orthogonally to the electrolyte supply pipe.

[0030] In the present invention, the diameter of the electrolyte chamber is formed to be larger than the diameter of the electrolyte supply pipe.

[0031] The present invention also includes: a perforated plate, which has a plurality of throttling holes formed at a specified interval in such a manner that the electrolyte flowing into the interior of the electrolyte chamber is discharged upward at a higher pressure, and a plurality of partitions are provided at the lower portion of the perforated plate, which divide the lower space of the electrolyte chamber into specified intervals and spaces.

[0032] In the present invention, a flow guide member is provided on the upper portion of the electrolyte chamber, and the flow guide member forms a flow path of the electrolyte so that the electrolyte discharged from the electrolyte discharge hole is discharged into the anode tank.

[0033] In the present invention, the guide component includes: a guide plate, which is arranged in the center of the outside of the electrolyte chamber; and a guide plate, which is arranged on the left and right of the outside of the electrolyte chamber facing each other and inclined toward the outside of the electrolyte chamber, and together with the guide plate forms the flow path.

[0034] In the present invention, the lower portion of the guide plate is formed into the same arc shape as the anode tank, the lower end of the guide plate is fixed to the electrolyte chamber, and the upper end of the guide plate is fixed to the anode tank of the metal foil forming device.

[0035] In the present invention, a control valve for controlling the supply of electrolyte is provided at the lower portion of each of the electrolyte supply pipes.

[0036] Effects of the Invention

[0037] According to the embodiment of the present invention, the electrolyte can be uniformly discharged into the anode tank at the lower part of the drum, so that the electrolyte can effectively avoid the influence of vortex (or vortex) and bubble phenomenon as in the past.

[0038] Furthermore, the load on the electrolyte supply pump can be reduced, and low-flow rate and high-speed electrical decomposition (or electrolysis) can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural diagram of an electrolyte supply nozzle device in the prior art.

[0040] Figure 2 This is a diagram showing the main structure of a metal foil forming apparatus to which the electrolyte supply nozzle apparatus of the present invention is applied.

[0041] Figure 3 yes Figure 2 A detailed structural diagram of the electrolyte supply nozzle device for the metal foil forming device of the present invention.

[0042] Figure 4 yes Figure 3 A side sectional view of an electrolyte supply nozzle device.

[0043] Figure 5 (a) to (c) show Figure 4 Detailed plan, front, and side views of the perforated plate.

[0044] Reference numerals

[0045] 1: metal foil forming device, 2: roller, 5: electrolytic cell, 18, 19: anode base, 20: gap, 110: electrolyte supply pipe, 120: electrolyte chamber, 121, 122: electrolyte discharge hole, 131: throttling hole, 130: perforated plate, 133: partition wall, 181, 182: anode cell, 161, 162: guide plate, 170: guide plate, 111: control valve. DETAILED DESCRIPTION

[0046] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] Figure 2 A diagram showing the main structure of a metal foil forming apparatus to which the electrolyte supply nozzle apparatus of the present invention is applied.

[0048] in addition, Figure 3 It is shown in Figure 2 A detailed structural diagram of the electrolyte supply nozzle device for the metal foil forming device of the present invention.

[0049] also, Figure 4 Shows Figure 3 A side sectional view of an electrolyte supply nozzle device.

[0050] in addition, Figure 5 (a) to (c) show Figure 4 Detailed plan, front, and side views of the perforated plate.

[0051] Reference Figures 2 to 5 The electrolyte supply nozzle device for the metal foil forming device of the present invention includes: one or more electrolyte supply pipes 110, which are arranged toward the roller 2 of the electrolyte supply nozzle device to supply electrolyte; and an electrolyte chamber 120, which is arranged at the upper end of the electrolyte supply pipe 110 and is configured to gather the inflowing electrolyte to form a mixed flow and mixing.

[0052] In addition, a plurality of electrolyte discharge holes 121 and 122 inclined at a predetermined angle (eg, 15 to 45 degrees) are formed on the upper portion of the electrolyte chamber 120 .

[0053] In particular, the electrolyte discharge holes 121 and 122 are formed on the left and right sides of the electrolyte chamber 120 , respectively, and are formed to be inclined in opposite directions to each other.

[0054] In addition, the electrolyte supply pipe 110 is formed in a tube shape, and the electrolyte chamber 120 is provided to be orthogonal to the electrolyte supply pipe 110 .

[0055] That is, the electrolyte supply pipe 110 is vertically provided toward the drum 2 , and the electrolyte chamber 120 is provided across the upper portion of the electrolyte chamber 120 .

[0056] At this time, the electrolyte chamber 120 is preferably formed to have a diameter larger than that of the electrolyte supply pipe 110 in order to achieve smooth flow and discharge.

[0057] In addition, in the electrolyte supply nozzle device for the metal foil forming device of the present invention, a perforated plate 130 having a plurality of orifices 131 (orifices) formed at a predetermined interval is provided so that the electrolyte flowing into the electrolyte chamber 120 is discharged upward at a higher pressure.

[0058] like Figure 5 As shown, a plurality of partition walls 133 are provided at the bottom of the perforated plate 130 to partition the lower space of the electrolyte chamber 120 into predetermined intervals and spaces.

[0059] At this time, if Figure 5 As shown in (c), the partition wall 133 is formed in a semicircular shape to fill the lower part of the electrolyte chamber 120.

[0060] In addition, guide components 161 , 162 , 170 are provided at the upper portion of the electrolyte chamber 120 , and the guide components 161 , 162 , 170 form a flow path for the electrolyte in such a manner that the electrolyte discharged from the electrolyte discharge holes 121 , 122 is discharged into the anode tanks 181 , 182 at the lower portion of the drum 2 .

[0061] Such guide components 161, 162, 170 include: a guide plate 170, which is arranged at the center of the outside of the electrolyte chamber 120; and guide plates 161, 162, which are arranged on the left and right of the outside of the electrolyte chamber 120 facing each other, and are inclined toward the outside of the electrolyte chamber 120, and together with the guide plate 170 form the flow path.

[0062] In addition, the lower portion of the guide plate 170 is formed into the same arc shape as the anode tank 181, 182 or the drum 2, the lower ends of the guide plates 161, 162 are fixed to the electrolyte chamber 120, and the upper ends of the guide plates 161, 162 are welded and fixed to the anode tank 181, 182 of the metal foil forming device.

[0063] In addition, a control valve 111 is provided at the lower portion of each of the electrolyte supply pipes 110 so as to be able to individually control or restrict the supply of electrolyte (for example, flow rate, etc.) of the electrolyte supply pipe 110 .

[0064] That is, by providing the control valves 111 in the electrolyte supply pipes 110 , the control valves 111 can be individually controlled, so that the electrolyte can be efficiently discharged according to the situation for each position.

[0065] Next, the operation of the electrolyte supply nozzle device for a metal foil forming device of the present invention having the above-mentioned structure will be described.

[0066] Refer again Figures 2 to 5 According to the electrolyte supply nozzle device for the metal foil forming device of the present invention, a perforated plate 130 having a plurality of throttling holes 131 is provided inside the electrolyte chamber 120, so that the electrolyte can achieve accelerated and stable flow characteristics in the electrolyte chamber 120 above the perforated plate 130.

[0067] In addition, a plurality of electrolyte discharge holes 121 , 122 inclined at a predetermined angle are continuously formed in two rows at the upper end of the electrolyte chamber 120 , so that the electrolyte can achieve secondary acceleration and stable flow in the electrolyte discharge holes 121 , 122 .

[0068] In addition, guide plates 161, 162 and guide plates 170 serving as guide components 161, 162, 170 are provided at the position before the electrolyte is discharged from the electrolyte discharge holes 121, 122 and flows into the anode tanks 181, 182, so that the electrolyte can naturally flow into the anode tanks 181, 182 along the tangential direction of the cathode drum 2.

[0069] Therefore, the electrolyte can effectively avoid the influence of vortex (or eddy current) and bubble phenomenon as in the past.

[0070] Furthermore, the load on the electrolyte supply pump (not shown) can be reduced, and low-flow and high-speed electrical decomposition (or electrolysis) can be achieved.

[0071] As described above, the present invention has been described with reference to an embodiment shown in the accompanying drawings, but this is merely exemplary and those skilled in the art will appreciate that various modifications and equivalent embodiments may be made therefrom.

[0072] Therefore, the true scope of the present invention should be limited only by the following claims.

Claims

1. An electrolyte supply nozzle device for a metal foil forming device, characterized in that: include: one or more electrolyte supply pipes, which are arranged toward the drum of the electrolyte supply nozzle device to supply electrolyte; as well as The electrolyte chamber is arranged at the upper end of the electrolyte supply pipe and is configured to gather the inflowing electrolyte to form a mixed flow and mix. A plurality of electrolyte discharge holes inclined at a predetermined angle are formed at an upper portion of the electrolyte chamber.

2. The electrolyte solution supply nozzle device for a metal foil forming device according to claim 1, characterized in that: The electrolyte supply pipe is formed into a tube shape, The electrolyte chamber is disposed orthogonally to the electrolyte supply pipe.

3. The electrolyte solution supply nozzle device for a metal foil forming device according to claim 1, characterized in that: The electrolyte chamber is formed to have a diameter larger than a diameter of the electrolyte supply pipe.

4. The electrolyte solution supply nozzle device for a metal foil forming device according to claim 1, characterized in that: Also includes: The perforated plate has a plurality of orifices formed at a predetermined pitch so that the electrolyte flowing into the electrolyte chamber is discharged upward at a relatively high pressure.

5. The electrolyte solution supply nozzle device for a metal foil forming device according to claim 4, characterized in that: A plurality of partition walls are provided at the lower portion of the perforated plate, and the partition walls divide the lower space of the electrolyte chamber into predetermined intervals and spaces.

6. The electrolyte solution supply nozzle device for a metal foil forming device according to claim 1, characterized in that: A flow guide member is provided at an upper portion of the electrolyte chamber, the flow guide member forming a flow path of the electrolyte so that the electrolyte discharged from the electrolyte discharge hole is discharged into the anode tank.

7. The electrolyte solution supply nozzle device for a metal foil forming device according to claim 6, characterized in that: The flow guide component comprises: a guide plate disposed at the center of the exterior of the electrolyte chamber; and The guide plates are disposed on the left and right sides of the outside of the electrolyte chamber to face each other and are disposed to be inclined toward the outside of the electrolyte chamber, and form the flow path together with the guide plate.

8. The electrolyte solution supply nozzle device for a metal foil forming device according to claim 7, characterized in that: The lower portion of the guide plate is formed in the same arc shape as the anode tank.

9. The electrolyte solution supply nozzle device for a metal foil forming device according to claim 7, characterized in that: The lower end portion of the guide plate is fixed to the electrolyte chamber, and the upper end portion of the guide plate is fixed to the anode tank of the metal foil forming device.

10. The electrolyte solution supply nozzle device for a metal foil forming device according to claim 1, characterized in that: A control valve for controlling the supply of electrolyte is provided at the lower portion of each of the electrolyte supply pipes.

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