Activated carbon adding device and copper foil production system

Abstract

The utility model discloses an activated carbon adding device and a copper foil production system. The activated carbon adding device comprises a discharging tank, a three-way valve and a booster pump. The discharging tank is provided with a discharging hole; the three-way valve comprises a three-way pipe and a switching element arranged in the three-way pipe, the three-way pipe comprises a first communication port, a second communication port and a third communication port which are communicated with one another, the first communication port is communicated with the discharging port so as to guide working liquid in the discharging tank to the first communication port through the discharging port, and the second communication port is used for being communicated with a dirty liquid tank; the booster pump communicates with the third communicating opening. According to the scheme, when the three-way valve is in the first working state, working liquid in the discharging tank is guided to the second communicating opening through the first communicating opening and then enters the dirty liquid tank; and when the three-way valve is switched to the second working state, the booster pump pumps dredging gas into the third communication port, and the dredging gas is guided to the second communication port through the third communication port, so that the flowability of the working solution between the three-way valve and the dirty solution tank is improved, and blockage of the working solution is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of copper foil production, and in particular to an activated carbon adding device and a copper foil production system. Background Art

[0002] The production process of electrolytic copper foil mainly includes three steps: liquid preparation, electrolysis and slitting. The process of adding activated carbon belongs to the liquid preparation process. The main operation flow of the liquid preparation section includes copper material cleaning, copper material addition, copper supplementation and copper dissolution, filtration, plate heat exchange and liquid foil. Activated carbon is a porous carbon material made of high-quality fruit shells as working fluid through molding, carbonization, activation and other processes. It has a large specific surface area and strong adsorption performance. When activated carbon is added to the electrolyte, many extremely fine pores inside it will absorb small molecular impurities in the electrolyte, directly affecting the cleanliness of the electrolyte and the quality grade of the copper foil.

[0003] At present, the activated carbon addition method is to manually add activated carbon to the waste liquid tank once an hour, or to mix activated carbon with water and stir it, and then use a metering pump to evenly pump it into the waste liquid tank. The electrolyte in the waste liquid tank after the activated carbon adsorbs impurities can be sent back to the copper foil production system for recycling. Manual hourly addition is uneven and the adsorption capacity is unstable. Using a metering pump to pump in can ensure stability, but as the use time increases, there will be pipe blockage. Utility Model Content

[0004] The present application provides an activated carbon adding device and a copper foil production system to reduce pipeline blockage.

[0005] In order to solve the above technical problems, the technical solution provided by this application is:

[0006] An activated carbon adding device comprises a discharge tank, a three-way valve and a booster pump; the discharge tank is provided with a discharge port; the three-way valve comprises a three-way pipe and a switching element arranged in the three-way pipe, the three-way pipe comprises a first connecting port, a second connecting port and a third connecting port which are connected to each other, the first connecting port is connected to the discharge port to guide the working fluid in the discharge tank to the first connecting port through the discharge port, and the second connecting port is used to connect to a sewage tank; the booster pump is connected to the third connecting port to pump dredging gas into the third connecting port; wherein, when the switching element is in a first working state, the switching element is configured to guide the working fluid from the first connecting port to the second connecting port, and when the switching element is in a second working state, the switching element is configured to guide the dredging gas from the third connecting port to the second connecting port.

[0007] The switching element is configured to switch from the first working state to the second working state when the pressure value of the dredging gas pumped into the third connecting port by the booster pump reaches a preset value.

[0008] According to one embodiment of the present application, the switching element includes a mounting shaft, a fixed blade and a movable blade, both ends of the mounting shaft are connected to the tube wall of the three-way pipe, and the movable blade can change its position by rotating around the mounting shaft relative to the fixed blade; the movable blade is in a first position, the second connecting port is connected to the first connecting port and is not connected to the third connecting port, and the switching element is in the first working state; the movable blade is in a second position, the second connecting port is connected to the third connecting port and is not connected to the first connecting port, and the switching element is in the second working state.

[0009] According to an embodiment of the present application, the switching element further includes a torsion spring, and the fixed blade and the movable blade are rotationally connected via the torsion spring.

[0010] According to an embodiment of the present application, a central axis of the first communicating port is collinear with a central axis of the second communicating port, and a central axis of the third communicating port is perpendicular to central axes of the first communicating port and the second communicating port.

[0011] According to an embodiment of the present application, a central axis of the installation shaft intersects with central axes of the first communication port and the second communication port at right angles.

[0012] According to an embodiment of the present application, a rubber sealing layer for contacting the inner wall of the three-way pipe is provided on the outer surface of the switching element.

[0013] According to one embodiment of the present application, the activated carbon adding device further includes a metering pump, and the discharge port is connected to the first connecting port via the metering pump.

[0014] According to one embodiment of the present application, a stirring assembly is provided in the discharge tank.

[0015] The present application also provides a copper foil production system, which includes a dirty liquid tank and the above-mentioned activated carbon adding device, and the second connecting port is connected to the dirty liquid tank.

[0016] The beneficial effects of this application are:

[0017] The activated carbon adding device and copper foil production system provided by the present application are provided with a three-way valve and a booster pump, and the working fluid in the discharge tank flows to the dirty liquid tank through the three-way valve. When the three-way valve is in the first working state, the working fluid in the discharge tank is guided to the second connecting port through the first connecting port and then enters the dirty liquid tank, which is the normal working state of the activated carbon adding device of the present application; in order to avoid the flow path of the working fluid being blocked, the three-way valve can be switched to the second working state, at this time the booster pump pumps clearing gas into the third connecting port, and the clearing gas is guided to the second connecting port through the third connecting port, thereby increasing the fluidity of the working fluid between the three-way valve and the dirty liquid tank, avoiding blockage of the working fluid, and during the clearing process, since the clearing gas can only flow from the third connecting port to the second connecting port, it is possible to avoid the clearing gas from flowing back to the first connecting port. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0019] Figure 1 is a structural schematic diagram of an embodiment of a copper foil production system provided by the present application;

[0020] Figure 2 yes Figure 1 A cross-sectional schematic diagram of an embodiment of a three-way valve of an activated carbon adding device in a copper foil production system, wherein the three-way valve is in a first working state;

[0021] Figure 3 yes Figure 1 A cross-sectional schematic diagram of an embodiment of a three-way valve of an activated carbon adding device in a copper foil production system, wherein the three-way valve is in a second working state.

[0022] Description of reference numerals:

[0023] Activated carbon adding device 10

[0024] Discharge tank 110

[0025] Discharge port 110a

[0026] Stirring component 110b

[0027] Booster pump 120

[0028] Three-way valve 130

[0029] Tee pipe 131

[0030] First communication port 131a

[0031] Second communication port 131b

[0032] The third communication port 131c

[0033] Switching element 132

[0034] Fixed blade 1321

[0035] Active blade 1322

[0036] Install shaft 1323

[0037] Metering pump 140

[0038] Pipeline 150

[0039] First pipeline 151

[0040] Second pipeline 152

[0041] The third pipeline 153

[0042] First valve 161

[0043] Second valve 162

[0044] Waste liquid tank 20 DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0047] The present application provides a copper foil production system. In one embodiment, referring to Figure 1 , Figure 11 is a schematic diagram of the structure of the copper foil production system provided by the present application, the copper foil production system includes an activated carbon adding device 10 and a dirty liquid tank 20, the dirty liquid tank 20 is used to store the electrolyte to be purified, the electrolyte can be a copper sulfate electrolyte, the activated carbon adding device 10 is used to add activated carbon into the dirty liquid tank 20 to adsorb impurities in the electrolyte in the dirty liquid tank 20, the electrolyte after the impurities are adsorbed by the activated carbon can be sent back to the copper foil production system for recycling, the specific structure of the activated carbon adding device 10 refers to the following embodiment.

[0048] The present application also provides an activated carbon adding device. In one embodiment, the structure of the activated carbon adding device 10 is as shown in FIG. Figure 1 , which includes a discharge tank 110 , a three-way valve 130 and a booster pump 120 .

[0049] The discharge tank 110 is provided with a discharge port 110a, and the discharge tank 110 is used to store the working liquid, and the working liquid is discharged through the discharge port 110a. To facilitate the smooth discharge of the working liquid from the discharge port 110a, the discharge port 110a can be arranged at the bottom of the discharge tank 110, and of course it is not excluded that the discharge port 110a is arranged at other parts of the discharge tank 110. The working liquid refers to a liquid containing activated carbon.

[0050] See also Figure 2 and Figure 3 , Figure 2 and Figure 3 is a cross-sectional schematic diagram of the three-way valve 130, Figure 2 and Figure 3 Two different working states of the three-way valve 130 are shown. The three-way valve 130 includes a three-way pipe 131 and a switching element 132 disposed in the three-way pipe 131. The three-way pipe 131 includes a first communication port 131a, a second communication port 131b and a third communication port 131c that are connected to each other. The first communication port 131a is connected to the discharge port 110a to guide the working fluid in the discharge tank 110 to the first communication port 131a through the discharge port 110a. The second communication port 131b is used to connect to the dirty liquid tank 20.

[0051] The booster pump 120 is connected to the third communication port 131 c and is used to pump the dredging gas into the third communication port 131 c.

[0052] When the switching element 132 is in the first working state ( Figure 2 The switching element 132 is configured to guide the working fluid from the first communication port 131a to the second communication port 131b. When the switching element 132 is in the second working state ( Figure 3 In the state shown in FIG. 1 , the switching element 132 is configured to guide the dredging gas from the third communication port 131 c to the second communication port 131 b.

[0053] It can be seen that the present application is provided with a three-way valve 130 and a booster pump 120, and the working fluid in the discharge tank 110 flows to the dirty liquid tank 20 through the three-way valve 130. When the switching element 132 in the three-way valve 130 is in the first working state, the working fluid in the discharge tank 110 is guided to the second connecting port 131b through the first connecting port 131a and then enters the dirty liquid tank 20. This is the normal working state of the activated carbon adding device 10 of the present application. In order to avoid the flow path of the working fluid being blocked, the three-way valve 130 can be turned off. The switching element 132 is switched to the second working state, at which time the booster pump 120 pumps dredging gas into the third connecting port 131c, and the dredging gas is guided to the second connecting port 131b through the third connecting port 131c, thereby increasing the fluidity of the working fluid between the three-way valve 130 and the dirty liquid tank 20 to avoid blockage of the working fluid, and in the dredging process, since the dredging gas can only flow from the third connecting port 131c to the second connecting port 131b, it is possible to prevent the dredging gas from flowing back to the first connecting port 131a.

[0054] See again Figure 1 In some embodiments, the activated carbon adding device 10 further includes a metering pump 140, and the discharge port 110a is connected to the first connecting port 131a via the metering pump 140. The metering pump 140 is used to control the flow rate and flow rate of the working liquid within a certain range to increase the stability of the working liquid added to the dirty liquid tank 20. The metering pump 140 is a relatively mature technology in the relevant technology. Since this application does not involve improvements to the metering pump 140, the structure of the metering pump 140 will not be described in detail here.

[0055] The activated carbon adding device 10 of the present application also needs to be provided with a pipeline 150 to connect the various components. Specifically, the pipeline 150 includes a first pipeline 151, a second pipeline 152 and a third pipeline 153. The two ends of the first pipeline 151 are respectively connected to the discharge port 110a and the inlet of the metering pump 140, the two ends of the second pipeline 152 are respectively connected to the outlet of the metering pump 140 and the first connecting port 131a of the three-way valve 130, and the two ends of the third pipeline 153 are respectively connected to the second connecting port 131b of the three-way valve 130 and the dirty liquid tank 20. A first valve 161 is also provided on the first pipeline 151, and a second valve 162 is also provided on the third pipeline 153. The first valve 161 is used to control the circulation of the working fluid between the discharge port 110a of the liquid discharge tank and the inlet of the metering pump 140, and the second valve 162 is used to control the circulation of the working fluid between the second connecting port 131b of the three-way valve 130 and the dirty liquid tank 20.

[0056] The dredging gas in the present application is usually compressed gas stored in the booster pump 120. The working fluid in the present application is usually a solid-liquid mixture, which includes solid and liquid, the solid includes activated carbon particles, and the liquid includes water and electrolyte, wherein the volume fraction of water is 30%-40%, and the volume fraction of electrolyte is 60%-70%. Using the mixture of water and electrolyte as an activated carbon diluent can reduce the water added to the copper foil production system and control the stability of the copper foil production system.

[0057] In some embodiments, the switching element 132 is configured to switch from the first working state to the second working state when the pressure value of the dredging gas pumped into the third communication port 131c by the booster pump 120 reaches a preset value, and the preset value can be set to 0.2Mpa or other values. In other embodiments, the switching of the working state of the switching element 132 can also be achieved manually or by a driving device such as a motor, and is not limited to the method of switching the working state of the switching element 132 by pumping the dredging gas by the booster pump 120. However, it can be understood that the automatic switching of the working state of the switching element 132 by pumping the dredging gas by the booster pump 120 can achieve automatic control, which is a better implementation.

[0058] See again Figure 2 and Figure 3 In some embodiments, the switching element 132 includes a mounting shaft 1323, a fixed blade 1321, and a movable blade 1322. Both ends of the mounting shaft 1323 are connected to the tube wall of the three-way pipe 131. The movable blade 1322 can rotate around the mounting shaft 1323 relative to the fixed blade 1321 to change its position. The movable blade 1322 is located in the first position, the second communication port 131b is connected to the first communication port 131a and is not connected to the third communication port 131c, and the switching element 132 is in the first working state. The movable blade 1322 is located in the second position, the second communication port 131b is connected to the third communication port 131c and is not connected to the first communication port 131a, and the switching element 132 is in the second working state. By rotating the movable blade 1322, the working state of the three-way valve 130 can be switched, and the implementation method is simple and effective. Figure 2 It is shown that the movable blade 1322 is in the first position and the switching element 132 is in the first working state; Figure 3 It is shown that the movable blade 1322 is located at the second position and the switching element 132 is in the second working state.

[0059] Furthermore, the switching element 132 also includes a torsion spring (not shown in the figure), and the fixed blade 1321 and the movable blade 1322 are rotationally connected by the torsion spring. When the switching element 132 is in the first working state, the movable blade 1322 is kept in the first position by the action of the torsion spring; when the booster pump 120 pumps high-pressure dredging gas into the third connecting port 131c, the air pressure in the third connecting port 131c drives the movable blade 1322 to rotate to the second position, that is, the switching element 132 is switched to the second working state, and the torsion spring generates torsion energy storage. When the booster pump 120 stops pumping dredging gas, the air pressure in the third connecting port 131c decreases, and the force on the movable blade 1322 is removed. The torsion spring restores and drives the movable blade 1322 to rotate in the opposite direction so that the movable blade 1322 returns to the first position.

[0060] In some embodiments, both ends of the mounting shaft 1323 can be fixedly mounted on the tube wall of the tee tube 131, and the fixed blade 1321 is fixedly connected to the mounting shaft 1323 to achieve fixed mounting of the fixed blade 1321 relative to the tee tube 131, and the movable blade 1322 is movably mounted on the mounting shaft 1323. The movable blade 1322 can be fixed with a mounting sleeve, and the mounting sleeve is movably mounted on the mounting shaft 1323, thereby achieving that the movable blade 1322 can rotate around the mounting shaft 1323 relative to the fixed blade 1321. In these embodiments, the torsion spring can be sleeved on the mounting shaft 1323, and a notch is opened on the mounting sleeve. The two torsion arms of the torsion spring pass through the notch and respectively abut against the fixed blade 1321 and the movable blade 1322, so that when the movable blade 1322 rotates, the two torsion arms of the torsion spring move relative to each other to achieve force storage of the torsion spring. In other embodiments, both ends of the mounting shaft 1323 may be movably mounted on the tube wall of the three-way tube 131, the movable blade 1322 may be fixedly connected to the mounting shaft 1323, and the fixed blade 1321 may be fixedly mounted on the tube wall of the three-way tube 131, and the movable blade 1322 may rotate relative to the fixed blade 1321 around the mounting shaft 1323. It should be noted that no matter what connection structure is adopted between the fixed blade 1321 and the movable blade 1322, when the switching element 132 is in the first working state and the second working state, the edges of the integral structure formed by the fixed blade 1321 and the movable blade 1322 need to be in contact with the tube wall of the three-way tube 131, so that one of the first communication port 131a and the third communication port 131c can be connected to the second communication port 131b, and the other one is not connected to the second communication port 131b.

[0061] In some embodiments, the central axis of the first communication port 131a is collinear with the central axis of the second communication port 131b, and the central axis of the third communication port 131c is perpendicular to the central axes of the first communication port 131a and the second communication port 131b. The apertures of the first communication port 131a, the second communication port 131b, and the third communication port 131c are the same. In other embodiments, the structure of the three-way pipe 131 is not limited thereto.

[0062] In some embodiments, the central axis of the installation shaft 1323 intersects the central axis of the first communication port 131a and the second communication port 131b perpendicularly. With such an installation structure, the movable blade 1322 rotates to the first position or the second position to ensure that the edge of the movable blade 1322 fits the pipe wall of the three-way pipe 131.

[0063] In some embodiments, the outer surface of the switching element 132 is provided with a rubber sealing layer for contacting the inner wall of the three-way pipe 131. The Shore hardness of the rubber sealing layer can be 60-70. The interior of the mounting shaft 1323, the fixed blade 1321 and the movable blade 1322 in the switching element 132 is made of 316L stainless steel metal, and the exterior is wrapped with a rubber sealing layer, which can prevent the internal metal parts from corroding and can increase the sealing effect between the switching element 132 and the pipe wall of the three-way pipe 131.

[0064] See again Figure 1 In some embodiments, a stirring assembly 110b is disposed in the discharge tank 110. Since the working liquid is usually a solid-liquid mixture, in order to prevent the solid in the working liquid from settling to the bottom, the stirring assembly 110b is disposed in the discharge tank 110 to stir and mix the working liquid evenly.

[0065] The terms "first", "second", "third" in this application are only used for descriptive purposes and cannot be understood as indicating the quantity of the indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of these features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative positional relationship, motion conditions, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "include" and "have" and any of their variations are intended to cover non-exclusive inclusions. The process, method, system, product or equipment such as including a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0066] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An activated carbon adding device, characterized in that: include: A discharge tank is provided with a discharge port; A three-way valve, comprising a three-way pipe and a switching element arranged in the three-way pipe, the three-way pipe comprising a first communication port, a second communication port and a third communication port connected to each other, the first communication port being connected to the discharge port to guide the working fluid in the discharge tank to the first communication port through the discharge port, and the second communication port being used to connect to a waste liquid tank; a booster pump connected to the third communication port and used to pump dredging gas into the third communication port; Wherein, when the switching element is in the first working state, the switching element is configured to guide the working fluid from the first connecting port to the second connecting port, and when the switching element is in the second working state, the switching element is configured to guide the clearing gas from the third connecting port to the second connecting port.

2. The activated carbon adding device according to claim 1, characterized in that: The switching element is configured to switch from the first working state to the second working state when the pressure value of the dredging gas pumped into the third connecting port by the booster pump reaches a preset value.

3. The activated carbon adding device according to claim 1 or 2, characterized in that: The switching element comprises a mounting shaft, a fixed blade and a movable blade, both ends of the mounting shaft are connected to the pipe wall of the three-way pipe, and the movable blade can rotate around the mounting shaft relative to the fixed blade to change its position; The movable blade is located at the first position, the second communication port is connected with the first communication port and is not connected with the third communication port, and the switching element is in the first working state; The movable blade is located at the second position, the second communication port is communicated with the third communication port and is not communicated with the first communication port, and the switching element is in the second working state.

4. The activated carbon adding device according to claim 3, characterized in that: The switching element further includes a torsion spring, and the fixed blade and the movable blade are rotationally connected via the torsion spring.

5. The activated carbon adding device according to claim 3, characterized in that: The central axis of the first communication port is collinear with the central axis of the second communication port, and the central axis of the third communication port is perpendicular to the central axes of the first communication port and the second communication port.

6. The activated carbon adding device according to claim 5, characterized in that: A central axis of the installation shaft intersects central axes of the first communication port and the second communication port at right angles.

7. The activated carbon adding device according to claim 3, characterized in that: The outer surface of the switching element is provided with a rubber sealing layer for contacting the inner wall of the three-way pipe.

8. The activated carbon adding device according to claim 1, characterized in that: The activated carbon adding device further comprises a metering pump, and the discharge port is connected to the first connecting port via the metering pump.

9. The activated carbon adding device according to claim 1, characterized in that: A stirring component is arranged in the discharge tank.

10. A copper foil production system, characterized in that: The system comprises a waste liquid tank and an activated carbon adding device according to any one of claims 1 to 9, and the second connecting port is connected to the waste liquid tank.

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