Liquid purifying device and electrolytic copper foil preparation system

Abstract

The utility model provides a liquid purifying device and an electrolytic copper foil preparation system, and belongs to the technical field of copper foil preparation, the liquid purifying device comprises a liquid purifying device body, a liquid inlet assembly, a liquid mixing assembly and a plurality of liquid outlet assemblies, and the liquid inlet assembly comprises a first liquid inlet pipe and a second liquid inlet pipe; the first liquid inlet pipe, the second liquid inlet pipe and the liquid outlet assemblies are all communicated with the liquid purifying device body, and the liquid mixing assembly is located between the liquid inlet assemblies and the liquid outlet assemblies in the flowing direction; the first liquid inlet pipe is used for injecting a copper ion solution into the liquid purifying device body, and the second liquid inlet pipe is used for injecting an additive into the liquid purifying device body; the liquid mixing assembly is used for uniformly mixing the copper ion solution and the additive to form a mixed solution; the multiple liquid outlet assemblies are used for conveying the mixed solution to different crude foil engines. According to the liquid purifying device provided by the invention, the proportion of the copper ion solution to the additive in the mixed solution flowing out of different liquid outlet assemblies can be relatively close.

Description

Technical Field

[0001] The present application relates to the technical field of copper foil preparation, and in particular to a liquid purification device and an electrolytic copper foil preparation system. Background Art

[0002] Electrolytic copper foil is an important material for the manufacture of copper clad laminates, printed circuit boards, lithium-ion batteries and other products.

[0003] The copper ion solution and additives are added to and stored in a clean liquid tank. The clean liquid tank is equipped with a copper ion solution inlet pipe, an additive inlet pipe, and multiple outlet pipes. The copper ion solution is added to the clean liquid tank through the copper ion solution inlet pipe, and the additives are added to the clean liquid tank through the additive inlet pipe. The two solutions mix in the clean liquid tank to form a mixed solution, which then flows out of the outlet pipes. Each outlet pipe is connected to a different foil production machine via a pipeline to transport the mixed solution to multiple foil production machines.

[0004] The copper ion solution and the additive are difficult to mix evenly in the clean liquid tank, resulting in different ratios of the copper ion solution and the additive in the mixed solution delivered to different foil machines. Utility Model Content

[0005] The embodiments of the present application provide a liquid purification device and an electrolytic copper foil preparation system, which can make the ratio of copper ion solution and additives in the mixed solution flowing out from different liquid outlet components relatively close.

[0006] The present application provides a liquid purification device, comprising: a liquid purification device body, a liquid inlet assembly, a liquid mixing assembly, and a plurality of liquid outlet assemblies, wherein the liquid inlet assembly comprises a first liquid inlet pipe and a second liquid inlet pipe; the first liquid inlet pipe, the second liquid inlet pipe, and the plurality of liquid outlet assemblies are all in communication with the liquid purification device body, and the liquid mixing assembly is located between the liquid inlet assembly and the liquid outlet assembly along the flow direction;

[0007] The first liquid inlet pipe is used to inject the copper ion solution into the liquid purification device body, and the second liquid inlet pipe is used to inject the additive into the liquid purification device body; the liquid mixing component is used to mix the copper ion solution and the additive evenly to form a mixed solution; and multiple liquid outlet components are used to transport the mixed solution to different foil production machines.

[0008] In one possible embodiment, the liquid purification device provided in the embodiment of the present application, the liquid mixing component includes a first liquid mixing tube and a first transfer tube, the first liquid mixing tube is conical, the first large end of the first liquid mixing tube is connected to the liquid purification device body, and the first small end of the first liquid mixing tube is connected to multiple liquid outlet components via the first transfer tube.

[0009] In a possible implementation, in the liquid purification device provided in an embodiment of the present application, a first flow guide member that spirals along the flow direction is provided on the inner wall of the first liquid mixing pipe.

[0010] In a possible implementation, the liquid purification device provided in an embodiment of the present application further includes a support frame connected to the first large end of the first mixing liquid pipe, and the support frame is used to support the first mixing liquid pipe and the liquid purification device body.

[0011] In one possible embodiment, the liquid purification device provided in the embodiment of the present application, the liquid mixing component includes a second liquid mixing tube and a second transfer tube, the second liquid mixing tube is conical, the first liquid inlet tube and the second liquid inlet tube are both connected to the second large end of the second liquid mixing tube, and the second small end of the second liquid mixing tube is connected to the liquid purification device body via the second transfer tube.

[0012] In a possible implementation, in the liquid purification device provided in an embodiment of the present application, a second flow guide member spirally advancing in the flow direction is provided on the inner wall of the second transfer tube.

[0013] In a possible embodiment, the liquid purification device provided in the embodiment of the present application, the liquid purification component also includes a partition, which is used to divide the liquid purification device body into a first tank body and a second tank body along the radial direction of the liquid purification device body, the liquid inlet component is located on one side of the first tank body, and the liquid outlet component is located on one side of the second tank body. The partition has multiple through holes, and the mixed solution flows from the first tank body to the second tank body through the through holes.

[0014] In one possible embodiment, the liquid purification device provided in an embodiment of the present application includes a partition including a first partition segment, a second partition segment, and a third partition segment connected in sequence; the distance between the first partition segment and the liquid inlet component, the distance between the second partition segment and the liquid inlet component, and the distance between the third partition segment and the liquid inlet component gradually increase;

[0015] The apertures of the through holes on the first partition plate segment, the apertures of the through holes on the second partition plate segment, and the apertures of the through holes on the third partition plate segment gradually increase.

[0016] In a possible embodiment, in the liquid purification device provided in an embodiment of the present application, the distance between the first partition section and the side wall of the second tank body, the distance between the second partition section and the side wall of the second tank body, and the distance between the third partition section and the side wall of the second tank body are the same.

[0017] An embodiment of the present application also provides an electrolytic copper foil preparation system, comprising a copper dissolving device, a filtering device, multiple foil raw machines and the above-mentioned liquid purification device, wherein the copper dissolving device, the filtering device and the liquid purification device are connected in sequence, and the liquid purification device is connected to the multiple foil raw machines.

[0018] The present invention provides a liquid purification device and an electrolytic copper foil production system. The liquid purification device comprises a liquid purification device body, a liquid inlet assembly, a liquid mixing assembly, and multiple liquid outlet assemblies. The liquid inlet assembly includes a first liquid inlet pipe and a second liquid inlet pipe. The first liquid inlet pipe, the second liquid inlet pipe, and the multiple liquid outlet assemblies are all connected to the liquid purification device body. The liquid mixing assembly is located between the liquid inlet assembly and the liquid outlet assemblies along the flow direction. The first liquid inlet pipe is used to inject a copper ion solution into the liquid purification device body, and the second liquid inlet pipe is used to inject an additive into the liquid purification device body. The liquid mixing assembly is used to uniformly mix the copper ion solution and the additive to form a mixed solution. The multiple liquid outlet assemblies are used to transport the mixed solution to different foil production machines. By arranging the liquid mixing assembly between the liquid inlet assembly and the liquid outlet assemblies, the copper ion solution and the additive can be uniformly mixed in the liquid mixing assembly, so that the ratio of the copper ion solution to the additive in the mixed solutions flowing out of different liquid outlet assemblies is relatively close. As a result, the ratio of the copper ion solution to the additive in the mixed solutions transported to different foil production machines is relatively close. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 It is a structural schematic diagram of a liquid purification tank in the related art;

[0021] Figure 2 Schematic diagram of the structure of the liquid purification device provided in the embodiment of the present application Figure 1 ;

[0022] Figure 3 Schematic diagram of the structure of the liquid purification device provided in the embodiment of the present application Figure 2 ;

[0023] Figure 4 Schematic diagram of the structure of the liquid purification device provided in the embodiment of the present application Figure 3 ;

[0024] Figure 5 A schematic structural diagram of a liquid inlet assembly, a second liquid mixing pipe, and a second transfer pipe in a liquid purification device provided in an embodiment of the present application;

[0025] Figure 6 Schematic diagram of the structure of the liquid purification device provided in the embodiment of the present application Figure 4 ;

[0026] Figure 7 for Figure 6 A top view of

[0027] Figure 8 A schematic diagram of the structure of a partition in a liquid purification device provided in an embodiment of the present application;

[0028] Figure 9 This is a schematic structural diagram of the electrolytic copper foil preparation system provided in an embodiment of the present application.

[0029] Description of reference numerals:

[0030] 10-clean liquid tank; 11-tank body; 12-copper ion solution inlet pipe; 13-additive inlet pipe; 14-liquid outlet pipe;

[0031] 100-liquid purification device;

[0032] 110-Liquid purification device body;

[0033] 111-first tank body;

[0034] 112-second tank;

[0035] 120-liquid inlet assembly;

[0036] 121-first liquid inlet pipe;

[0037] 122- second liquid inlet pipe;

[0038] 130-liquid mixing component;

[0039] 131 - first liquid mixing pipe; 1311 - first large end; 1312 - first small end; 1313 - first flow guide;

[0040] 132-first transfer pipe;

[0041] 133 - second mixing tube; 1331 - second large end; 1332 - second small end;

[0042] 134-second transfer tube; 1341-second flow guide;

[0043] 135 - partition; 135a - first partition segment; 135b - second partition segment; 135c - third partition segment; 1351 - through hole; 1352 - partition body;

[0044] 140-liquid outlet assembly;

[0045] 141- liquid outlet pipe;

[0046] 142- pump body;

[0047] 150-support frame;

[0048] 200-Copper dissolving device;

[0049] 300- filtration device;

[0050] 400-raw foil machine;

[0051] 1000-Electrolytic copper foil preparation system;

[0052] G-horizontal plane; C-circumferential direction; R-radial direction; X-flow square; Z-height direction;

[0053] D1-first aperture; D2-second aperture; D3-third aperture;

[0054] L1-first spacing; L2-second spacing; L3-third spacing; L4-fourth spacing; L5-fifth spacing; L6-sixth spacing. DETAILED DESCRIPTION

[0055] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0056] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0057] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0058] The terms "first," "second," and "third" (if any) in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the application described herein can, for example, be implemented in an order other than that illustrated or described herein.

[0059] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or service tool that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or service tool.

[0060] Figure 1 It is a structural schematic diagram of a liquid purification tank in the related art.

[0061] See also Figure 1 As shown, the liquid purification tank 10 includes a tank body 11 , a copper ion solution inlet pipe 12 , an additive inlet pipe 13 and a plurality of liquid outlet pipes 14 .

[0062] The copper ion solution inlet pipe 12 and the additive inlet pipe 13 are arranged above the tank body 11. The copper ion solution is added to the tank body 11 through the copper ion solution inlet pipe 12, and the additive is added to the tank body 11 through the additive inlet pipe 13. The copper ion solution and the additive are mixed in the tank body 11 to form a mixed solution.

[0063] A plurality of liquid outlet pipes 14 are spaced apart at the bottom of the tank body 11 and are connected to different foil production machines, respectively. The mixed solution flows out from different liquid outlet pipes 14 to be delivered to different foil production machines.

[0064] Tank 11 is a cylindrical structure with a diameter of 3-4 meters. Its large volume makes it difficult to mix the copper ion solution and additives evenly in the clean liquid tank. The ratio of copper ion solution to additives in the mixed solution varies in different areas of tank 11, resulting in different ratios of copper ion solution to additives in the mixed solution delivered to different foil production machines. These varying ratios of copper ion solution to additives in the mixed solution can lead to significant quality variations in the copper foil produced by different foil production machines.

[0065] Based on this, the present application provides a liquid purification device and an electrolytic copper foil preparation system, wherein the liquid purification device can make the ratio of copper ion solution and additives in the mixed solution flowing out from different liquid outlet components closer.

[0066] Figure 2 Schematic diagram of the structure of the liquid purification device provided in the embodiment of the present application Figure 1 ; Figure 3 Schematic diagram of the structure of the liquid purification device provided in the embodiment of the present application Figure 2 .

[0067] See also Figure 2 and Figure 3As shown, the liquid purification device 100 includes: a liquid purification device body 110, a liquid inlet component 120, a liquid mixing component 130 and multiple liquid outlet components 140, the liquid inlet component 120 includes a first liquid inlet pipe 121 and a second liquid inlet pipe 122; the first liquid inlet pipe 121, the second liquid inlet pipe 122 and the multiple liquid outlet components 140 are all connected to the liquid purification device body 110, and the liquid mixing component 130 is located between the liquid inlet component 120 and the liquid outlet component 140 along the flow direction X; the first liquid inlet pipe 121 is used to inject the copper ion solution into the liquid purification device body 110, and the second liquid inlet pipe 122 is used to inject the additive into the liquid purification device body 110; the liquid mixing component 130 is used to mix the copper ion solution and the additive evenly to form a mixed solution; the multiple liquid outlet components 140 are used to transport the mixed solution to different foil production machines.

[0068] The liquid purification device body 110 is used to store the copper ion solution and the additive. The liquid purification device body 110 can be a hollow cylinder, and the liquid purification device body 110 includes a height direction Z, a circumferential direction C, and a radial direction R.

[0069] A first liquid inlet pipe 121 and a second liquid inlet pipe 122 are disposed at the upper end of the liquid purification device body 110 along the height direction Z. The copper ion solution is injected into the liquid purification device body 110 through the first liquid inlet pipe 121, and the additive is injected into the liquid purification device body 110 through the second liquid inlet pipe 122. The diameter of the first liquid inlet pipe 121 can be 220 mm to 270 mm, and the diameter of the second liquid inlet pipe 122 can be 220 mm to 270 mm. The diameters of the first liquid inlet pipe 121 and the second liquid inlet pipe 122 can be the same or different.

[0070] A plurality of liquid outlet assemblies 140 are arranged at the lower end of the liquid purification device body 110 along the height direction Z. The liquid outlet assembly 140 includes a liquid outlet pipe 141 and a pump body 142. The liquid outlet pipe 141 is connected to the liquid purification device body 110, and the pump body 142 provides flow power for the liquid in the liquid outlet pipe 141.

[0071] The copper ion solution is injected into the liquid purification device body 110 through the first liquid inlet pipe 121, and the additive is injected into the liquid purification device body 110 through the second liquid inlet pipe 122; the copper ion solution and the additive flow from the upper end of the liquid purification device body 110 to the lower end of the liquid purification device body 110, forming a mixed solution in the liquid purification device body 110; the mixed solution is then transported to different foil production machines through the liquid outlet pipe 141. Figure 2 and Figure 3 In the illustrated embodiment, the flow direction X of the copper ion solution and the additive is indicated by a dashed line with an arrow.

[0072] The volume of the liquid purification device body 110 is large, and the copper ion solution and additive flow faster on the side close to the liquid inlet component 120, and flow slower on the side away from the liquid inlet component 120, making it difficult for the copper ion solution and additive to be evenly mixed in the liquid purification device body 110. Therefore, the proportions of copper ion solution and additive in the mixed solutions flowing out of different liquid outlet components 140 are different.

[0073] In the embodiment of the present application, by setting up the liquid mixing component 130, the ratio of copper ion solution and additive in the mixed solution flowing out from different liquid outlet components 140 can be made closer, thereby, the ratio of copper ion solution and additive in the mixed solution transported to different foil machines can be made closer.

[0074] Specifically, in Figure 2 In the embodiment shown, the liquid mixing component 130 is arranged close to the liquid outlet component 140 along the flow direction X. The copper ion solution and the additive are evenly mixed in the liquid mixing component 130 and then flow directly out of the liquid outlet component 140, so that the ratio of the copper ion solution and the additive in the mixed solutions flowing out of different liquid outlet components 140 is relatively close. Figure 3 In the illustrated embodiment, the liquid mixing component 130 is disposed near the liquid inlet component 120 along the flow direction X. After the copper ion solution and the additive are evenly mixed in the liquid mixing component 130 , they continue to flow in the liquid purification device body 110 , and after further mixing, flow out from the liquid outlet component 140 .

[0075] The liquid purification device 100 provided in an embodiment of the present application is provided with a liquid purification device body 110, a liquid inlet component 120, a liquid mixing component 130 and multiple liquid outlet components 140, wherein the liquid inlet component 120 includes a first liquid inlet pipe 121 and a second liquid inlet pipe 122; the first liquid inlet pipe 121, the second liquid inlet pipe 122 and the multiple liquid outlet components 140 are all connected to the liquid purification device body 110, and the liquid mixing component 130 is located between the liquid inlet component 120 and the liquid outlet component 140 along the flow direction X; the first liquid inlet pipe 121 is used to inject a copper ion solution into the liquid purification device body 110, and the second liquid inlet pipe 122 is used to inject an additive into the liquid purification device body 110; the liquid mixing component 130 is used to evenly mix the copper ion solution and the additive to form a mixed solution; and the multiple liquid outlet components 140 are used to transport the mixed solution to different foil production machines. By arranging a liquid mixing component 130 between the liquid inlet component 120 and the liquid outlet component 140, the copper ion solution and the additive can be evenly mixed in the liquid mixing component 130, so that the ratio of the copper ion solution and the additive in the mixed solutions flowing out from different liquid outlet components 140 is relatively close. As a result, the ratio of the copper ion solution and the additive in the mixed solutions transported to different foil machines is relatively close.

[0076] Next, a first implementation of the liquid mixing component 130 is described.

[0077] Please continue to see Figure 2 As shown, the liquid mixing component 130 includes a first liquid mixing tube 131 and a first transfer tube 132. The first liquid mixing tube 131 is conical. The first large end 1311 of the first liquid mixing tube 131 is connected to the liquid purification device body 110. The first small end 1312 of the first liquid mixing tube 131 is connected to the multiple liquid outlet components 140 via the first transfer tube 132.

[0078] The first mixing tube 131 is disposed at the lower end of the liquid purification device body 110 along the height direction Z. The diameter of the first large end 1311 of the first mixing tube 131 is the same as the diameter of the liquid purification device body 110, so that the first large end 1311 of the first mixing tube 131 is connected to the liquid purification device body 110. Since the first mixing tube 131 is tapered, when the copper ion solution and the additive flow from the liquid purification device body 110 into the first mixing tube 131, a vortex is formed in the first mixing tube 131 under the action of centripetal force and gravity, thereby ensuring sufficient mixing of the copper ion solution and the additive.

[0079] The mixed solution flows from the first small end 1312 of the first mixing liquid pipe 131 into the first transfer pipe 132. A plurality of liquid outlet pipes 141 are arranged on the first transfer pipe 132 at intervals along the flow direction X and are connected to the first transfer pipe 132. The mixed solution flows through the first transfer pipe 132 to different liquid outlet pipes 141, and is thereby transported to different foil production machines through the liquid outlet pipes 141.

[0080] By providing a conical first mixing tube 131, the copper ion solution and the additive can be evenly mixed in the first mixing tube 131. By providing a first transfer tube 132, the mixed solution can flow out through only one outlet and then be transferred to different liquid outlet tubes 141. In this way, the ratio of the copper ion solution and the additive in the mixed solutions of different liquid outlet tubes 141 can be close.

[0081] Figure 4 Schematic diagram of the structure of the liquid purification device provided in the embodiment of the present application Figure 3 .

[0082] See also Figure 4 As shown, in Figure 2 On the basis of the embodiment shown, a first flow guide 1313 spirally advancing along the flow direction X is provided on the inner wall of the first liquid mixing tube 131 .

[0083] The first guide member 1313 protrudes from the inner wall of the first mixing tube 131, and the first guide member 1313 spirals forward to form a flow channel for the mixed solution between the first guide members 1313. The mixed solution can flow along the flow channel in the first mixing tube 131. Therefore, when the effects of centripetal force and gravity are limited, the first guide member 1313 can provide external force for the formation of vortex flow to ensure that the copper ion solution and the additive can be mixed more evenly in the first mixing tube 131.

[0084] Please continue to see Figure 2 and Figure 4 As shown, the liquid purification device 100 further includes a support frame 150 , which is connected to the first large end 1311 of the first liquid mixing pipe 131 . The support frame 150 is used to support the first liquid mixing pipe 131 and the liquid purification device body 110 .

[0085] Since the tapered first liquid mixing pipe 131 is provided at the lower end of the liquid purification device body 110 , the tapered first small end 1312 cannot provide sufficient supporting force for the liquid purification device body 110 .

[0086] Therefore, a support frame 150 can be provided. The support frame 150 is a cylindrical frame. The diameter of the support frame 150 is the same as the diameter of the first large end 1311 of the first mixing liquid tube 131. The size of the support frame 150 along the height direction Z is slightly larger than the size of the first mixing liquid tube 131 along the height direction Z. One end of the support frame 150 along the height direction Z is connected to the first large end 1311, and the other end of the support frame 150 along the height direction Z is placed on the horizontal plane G, thereby providing support for the first mixing liquid tube 131 and the liquid purification device body 110.

[0087] Next, a second implementation of the liquid mixing component 130 is described.

[0088] Figure 5 This is a schematic structural diagram of the liquid inlet assembly, the second liquid mixing pipe and the second transfer pipe in the liquid purification device provided in an embodiment of the present application.

[0089] See also Figure 3 and Figure 5 As shown, the liquid mixing assembly 130 includes a second liquid mixing tube 133 and a second transfer tube 134. The second liquid mixing tube 133 is conical. The first liquid inlet tube 121 and the second liquid inlet tube 122 are both connected to the second large end 1331 of the second liquid mixing tube 133. The second small end 1332 of the second liquid mixing tube 133 is connected to the liquid purification device body 110 via the second transfer tube 134.

[0090] Specifically, the port of the second large end 1331 can be in an "eight" shape to facilitate connection with the first liquid inlet pipe 121 and the second liquid inlet pipe 122, and to provide a smooth transition at the connection. The copper ion solution injected from the first liquid inlet pipe 121 and the additive injected from the second liquid inlet pipe 122 form a vortex in the second mixing pipe 133 under the action of centripetal force and gravity, so that the copper ion solution and the additive are mixed in the second mixing pipe 133.

[0091] The mixed solution flows along the second transfer tube 134 to enter the liquid purification device body 110 .

[0092] Please continue to see Figure 5 As shown, a second flow guide 1341 spirally advancing along the flow direction X is provided on the inner wall of the second transfer tube 134 .

[0093] Second flow guides 1341 protrude from the inner wall of second transfer tube 134 and spirally extend. A flow channel for the mixed solution is formed between second flow guides 1341. The mixed solution flows along the flow channel within second transfer tube 134, thereby further mixing the copper ion solution and the additive within second transfer tube 134, ensuring a more uniform mixing. It should be noted that a spirally extending flow guide could also be provided on the inner wall of second mixing tube 133.

[0094] Figure 6 Schematic diagram of the structure of the liquid purification device provided in the embodiment of the present application Figure 4 ; Figure 7 for Figure 6 A top view of Figure 8 This is a schematic structural diagram of the partition in the liquid purification device provided in an embodiment of the present application.

[0095] See also Figures 6 to 8 As shown, in Figure 3 On the basis of the illustrated embodiment, the liquid mixing component 130 further includes a partition 135, which is used to divide the liquid purification device body 110 into a first tank body 111 and a second tank body 112 along the radial direction R of the liquid purification device body 110. The liquid inlet component 120 is located on one side of the first tank body 111, and the liquid outlet component 140 is located on one side of the second tank body 112. The partition 135 has a plurality of through holes 1351, and the mixed solution flows from the first tank body 111 to the second tank body 112 via the through holes 1351.

[0096] The partition 135 is disposed in the liquid purification device body 110 . The height of the partition 135 is close to that of the liquid purification device body 110 . The partition 135 divides the liquid purification device body 110 into two parts, namely the first tank body 111 and the second tank body 112 .

[0097] The liquid inlet assembly 120 is connected to the first tank body 111 through the second liquid mixing pipe 133 and the second transfer pipe 134 . The copper ion solution and the additive form a mixed solution in the second liquid mixing pipe 133 and then flow into the first tank body 111 .

[0098] The partition 135 includes a partition body 1352 and multiple through-holes 1351 formed in the partition body 1352. The mixed solution in the first tank 111 flows into the second tank 112 through the through-holes 1351. Multiple liquid outlet pipes 141 are connected to the sidewalls of the bottom of the second tank 112. The mixed solution in the second tank 112 is transported to different foil-making machines through the liquid outlet pipes 141. The partition body 1352 blocks the flow of the mixed solution, allowing the mixed solution in the entire liquid purification device body 110 to have greater flow momentum. The flow rate of the mixed solution throughout the liquid purification device body 110 is similar, avoiding the problem of inconsistent proportions in the mixed solution due to different flow rates.

[0099] See also Figures 6 to 8 As shown, the partition 135 includes a first partition segment 135a, a second partition segment 135b and a third partition segment 135c which are connected in sequence; the distance between the first partition segment 135a and the liquid inlet component 120, the distance between the second partition segment 135b and the liquid inlet component 120 and the distance between the third partition segment 135c and the liquid inlet component 120 gradually increase; the aperture of the through hole 1351 on the first partition segment 135a, the aperture of the through hole 1351 on the second partition segment 135b and the aperture of the through hole 1351 on the third partition segment 135c gradually increase.

[0100] The partition 135 is divided into a first partition section 135a, a second partition section 135b, and a third partition section 135c according to the horizontal distance between each area of ​​the partition 135 and the liquid inlet assembly 120. The horizontal distance between the first partition section 135a and the liquid inlet assembly 120 is a first distance L1, the horizontal distance between the second partition section 135b and the liquid inlet assembly 120 is a second distance L2, and the horizontal distance between the third partition section 135c and the liquid inlet assembly 120 is a third distance L3. The relationship between the first distance L1, the second distance L2, and the third distance L3 is such that the third distance L3 is greater than the second distance L2, which is greater than the first distance L1.

[0101] The through hole 1351 in the first partition wall segment 135a has a first aperture D1, the through hole 1351 in the second partition wall segment 135b has a second aperture D2, and the through hole 1351 in the third partition wall segment 135c has a third aperture D3. The relationship between the first aperture D1, the second aperture D2, and the third aperture D3 is such that the third aperture D3 is larger than the second aperture D2, which is larger than the first aperture D1.

[0102] As the distance between the partition 135 and the liquid inlet assembly 120 gradually increases, the power of the mixed solution flow gradually decreases, and the flow rate of the mixed solution also gradually decreases. In order to compensate for the change in the ratio of the copper ion solution and the additive in the mixed solution caused by the decrease in the flow rate of the mixed solution, in this embodiment, as the distance between the partition 135 and the liquid inlet assembly 120 gradually increases, the aperture of the through hole 1351 on the partition 135 also gradually increases. The increase in aperture can reduce the resistance to the flow of the mixed solution, so that the flow rate of the mixed solution closer to the liquid inlet assembly 120 and the flow rate of the mixed solution farther away from the liquid inlet assembly 120 are kept as consistent as possible.

[0103] Please continue to see Figure 7 As shown, the distance between the first partition plate segment 135a and the side wall of the second tank body 112, the distance between the second partition plate segment 135b and the side wall of the second tank body 112, and the distance between the third partition plate segment 135c and the side wall of the second tank body 112 are the same.

[0104] exist Figure 7 In the embodiment, the first partition segment 135a is spaced apart from the sidewall of the second tank body 112 by a fourth spacing L4, the second partition segment 135b is spaced apart from the sidewall of the second tank body 112 by a fifth spacing L5, and the third partition segment 135c is spaced apart from the sidewall of the second tank body 112 by a sixth spacing L6. The partition 135 has a curved cross-section, and the curvature of each partition segment within the partition 135 is adjusted to ensure that the fourth spacing L4, the fifth spacing L5, and the sixth spacing L6 are equal. Consequently, the liquid outlet pipes 141 disposed in different areas of the sidewall of the second tank body 112 are spaced apart from the partition 135 by the same distance. This ensures that the mixed solution flowing through the through-holes 1351 in different partition segments to the liquid outlet pipes 141 has the same flow path length, thus preventing variations in the ratio of the copper ion solution to the additive in the mixed solution due to varying path lengths.

[0105] Figure 9 This is a schematic structural diagram of the electrolytic copper foil preparation system provided in an embodiment of the present application.

[0106] See also Figure 9 As shown, an embodiment of the present application also provides an electrolytic copper foil preparation system 1000, including a copper dissolving device 200, a filtering device 300, a plurality of foil raw machines 400 and a liquid purification device 100 provided in the above embodiment, wherein the copper dissolving device 200, the filtering device 300 and the liquid purification device 100 are connected in sequence, and the liquid purification device 100 is connected to the plurality of foil raw machines 400.

[0107] The structure of the liquid purification device 100 has been described in detail in the above embodiments and will not be described in detail here.

[0108] Copper sulfate crystals and a solvent are added to a copper dissolving device 200 to form a copper ion solution. Impurities are filtered out by a filter device 300, and the solution then enters a liquid purification device 100. Additives are also added to the liquid purification device 100. The copper ion solution and additives are mixed evenly in the liquid purification device 100 before being transported to multiple foil production machines 400 to produce copper foil in the foil production machines 400. In the electrolytic copper foil production system 1000 provided in the embodiment of the present application, the ratio of copper ion solution to additives in the mixed solution transported by the liquid purification device 100 to different foil production machines 400 is similar, resulting in consistent quality of the copper foil produced by different foil production machines 400.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A liquid purification device, characterized in that: include: A liquid purification device body, a liquid inlet assembly, a liquid mixing assembly and a plurality of liquid outlet assemblies, wherein the liquid inlet assembly comprises a first liquid inlet pipe and a second liquid inlet pipe; the first liquid inlet pipe, the second liquid inlet pipe and the plurality of liquid outlet assemblies are all connected to the liquid purification device body, and the liquid mixing assembly is located between the liquid inlet assembly and the liquid outlet assembly along the flow direction; The first liquid inlet pipe is used to inject the copper ion solution into the liquid purification device body, and the second liquid inlet pipe is used to inject the additive into the liquid purification device body; the liquid mixing component is used to mix the copper ion solution and the additive evenly to form a mixed solution; The plurality of liquid outlet components are used to transport the mixed solution to different foil production machines.

2. The liquid purification device according to claim 1, characterized in that: The liquid mixing component includes a first liquid mixing tube and a first transfer tube. The first liquid mixing tube is conical. The first large end of the first liquid mixing tube is connected to the liquid purification device body. The first small end of the first liquid mixing tube is connected to the plurality of liquid outlet components via the first transfer tube.

3. The liquid purification device according to claim 2, characterized in that: A first flow guide member spirally advancing along the flow direction is arranged on the inner wall of the first liquid mixing tube.

4. The liquid purification device according to claim 3, characterized in that: The liquid purification device further includes a support frame, which is connected to the first large end of the first liquid mixing pipe, and is used to support the first liquid mixing pipe and the liquid purification device body.

5. The liquid purification device according to claim 1, characterized in that: The liquid mixing assembly includes a second liquid mixing tube and a second transfer tube, the second liquid mixing tube is conical, the first liquid inlet tube and the second liquid inlet tube are both connected to the second large end of the second liquid mixing tube, and the second small end of the second liquid mixing tube is connected to the liquid purification device body via the second transfer tube.

6. The liquid purification device according to claim 5, characterized in that: A second flow guide member spirally advancing along the flow direction is arranged on the inner wall of the second transfer tube.

7. The liquid purification device according to claim 6, characterized in that: The liquid purification device also includes a partition, which is used to divide the liquid purification device body into a first tank body and a second tank body along the radial direction of the liquid purification device body, the liquid inlet component is located on one side of the first tank body, and the liquid outlet component is located on one side of the second tank body. The partition has a plurality of through holes, and the mixed solution flows from the first tank body to the second tank body via the through holes.

8. The liquid purification device according to claim 7, characterized in that: The partition includes a first partition section, a second partition section and a third partition section connected in sequence; the distance between the first partition section and the liquid inlet component, the distance between the second partition section and the liquid inlet component and the distance between the third partition section and the liquid inlet component gradually increase; The apertures of the through holes on the first baffle plate segment, the apertures of the through holes on the second baffle plate segment, and the apertures of the through holes on the third baffle plate segment gradually increase.

9. The liquid purification device according to claim 8, characterized in that: The distance between the first partition plate section and the side wall of the second tank body, the distance between the second partition plate section and the side wall of the second tank body, and the distance between the third partition plate section and the side wall of the second tank body are the same.

10. An electrolytic copper foil preparation system, characterized in that: It comprises a copper dissolving device, a filtering device, a plurality of foil raw machines and a liquid purification device as described in any one of claims 1 to 9, wherein the copper dissolving device, the filtering device and the liquid purification device are connected in sequence, and the liquid purification device is connected to the plurality of foil raw machines.

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