Waste liquid treatment device for copper foil production

Abstract

The invention relates to the technical field of copper foil waste liquid recovery, in particular to a waste liquid treatment device for copper foil production, which comprises an outer cylinder, a plurality of feeding pipes are arranged on the top surface in a penetrating manner, a discharging pipe is arranged on one side of the outer cylinder in a penetrating manner, and the waste liquid treatment device further comprises a stirring mechanism; the filtering mechanism is arranged above the stirring mechanism; the backflow mechanism is connected with the stirring mechanism and is used for enabling the reacted waste liquid to flow back to the filtering mechanism for filtering; and the driving mechanism drives the stirring mechanism and the backflow mechanism to work. The copper foil production waste liquid treatment device is provided with the stirring mechanism and the reflux mechanism, through cooperation of the stirring mechanism and the reflux mechanism, it is guaranteed that copper foil production waste liquid and a precipitant fully react, meanwhile, precipitates can be continuously conveyed to the filtering mechanism in the treatment process, and solid-liquid separation operation of the precipitates and the waste liquid by workers is facilitated; and a worker can conveniently judge whether the copper ions in the waste liquid are completely replaced or not in the reaction, so that the worker can flexibly treat the waste liquid according to different conditions, the design is ingenious, and the practicability is high.

Description

Technical Field

[0001] The invention relates to the technical field of copper foil waste liquid recovery, and in particular to a waste liquid treatment device used in copper foil production. Background Art

[0002] Copper foil is made of copper and a certain proportion of other metals. It is mainly used for electromagnetic shielding and antistatic. The conductive copper foil is placed on the substrate surface and combined with the metal substrate. It has excellent conductivity and provides electromagnetic shielding effect. It is also one of the most widely used decorative materials. There are many production processes for copper foil. Among them, electrolytic copper foil has a low cost and technical threshold, so it is used on a large scale. This process is to make copper raw materials into copper sulfate solution, and then use electrolytic equipment to deposit the solution under the action of direct current.

[0003] A large amount of waste liquid will be generated in the process of electrolytic copper foil. These waste liquids will also contain some copper ions. If these copper ions are discharged with the wastewater, it will be wasted and will also damage the surrounding natural environment. Therefore, before discharging the wastewater, the staff needs to add precipitants such as lime milk or sulfide to the wastewater to convert the copper ions in the wastewater into insoluble copper hydroxide or copper sulfide precipitates, and then remove them through solid-liquid separation.

[0004] The existing method is to fully stir the wastewater with a precipitant such as lime milk or sulfide, and then directly filter out the precipitate with a filter. However, the amount of copper ions contained in the waste liquid discharged from each round of production is different, so the precipitant and reaction time required for each round of reaction are also very different. If a unified standard is adopted, incomplete treatment is very likely to occur. In view of this, the present invention proposes a waste liquid treatment device for copper foil production. Summary of the Invention

[0005] Technical problems solved In view of the above-mentioned shortcomings of the prior art, the present invention provides a waste liquid treatment device for copper foil production, which can effectively solve the problems in the prior art.

[0006] Technical Solution To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a waste liquid treatment device for copper foil production, comprising an outer cylinder, a top surface of which is penetrated by a plurality of feed pipes, a side of which is penetrated by a discharge pipe, and further comprising: A stirring mechanism is provided inside the outer cylinder and is used to stir and mix the precipitant and the waste liquid; A filtering mechanism is provided inside the outer cylinder above the stirring mechanism; A backflow mechanism, connected to the stirring mechanism, for flowing the waste liquid after the reaction back to the filtering mechanism for filtration; The driving mechanism is in transmission connection with the stirring mechanism and the counter-flow mechanism, and drives the stirring mechanism and the counter-flow mechanism to work.

[0007] Preferably, the stirring mechanism comprises: The stirring rod is arranged in a spiral structure that is symmetrical up and down, and any cross section of the stirring rod is a ring structure; The flared tube is connected to the upper end of the stirring rod and is communicated with the filtering mechanism.

[0008] Preferably, the driving mechanism comprises: A rotating seat is provided inside the outer cylinder and is rotatably connected to the bottom wall of the outer cylinder; The rotating seat is connected to the lower end of the stirring rod, and the rotating seat is driven to rotate by a motor gear structure.

[0009] Preferably, the interior of the rotating seat is a hollow cylindrical structure, and the reverse flow mechanism includes: A rotating tube is provided on the top surface of the rotating seat and is connected to the stirring rod. The rotating tube is a hollow structure and is in communication with the stirring rod. A lifting seat, slidably connected to the interior of the rotating seat; A guide block is provided on the circumferential outer wall of the lifting seat; an arcuate groove provided on the inner wall of the rotating seat and slidingly engaged with the guide block; a piston plate, slidably connected to the interior of the rotating seat and disposed above the lifting seat; A connecting seat, connecting the piston plate to the center of the lifting seat; A rod groove with a non-circular structure is provided at one end of the connecting seat facing the lifting seat, and a guide rod is provided on the inner bottom wall of the outer cylinder. The guide rod is connected to the rod groove in an up-and-down sliding manner.

[0010] Preferably, a baffle is provided on the upper rotating sleeve of the outer wall of the rotating seat, and the baffle is an annular structure and is fixedly connected to the inner bottom surface of the outer cylinder; The top surface of the rotating seat is coaxially fixedly connected with a scraper, and the lower part of the scraper is an annular structure and is rotatably sleeved on the outside of the baffle; The bottom surface of the scraper and the inner bottom surface of the outer cylinder are both inverted frustum structures and in sliding contact; A first through groove is formed on the inner wall of the rotating seat at a position above the piston plate; The side wall of the baffle and the bottom surface of the scraper are both provided with second through-grooves at positions opposite to the first through-grooves.

[0011] Preferably, the arc-shaped groove comprises: Two first arc-shaped grooves are symmetrically opened from top to bottom along the inner wall of the rotating seat; The two second arc-shaped grooves are arc-shaped structures with constant height, and respectively connect the upper end and the lower end of the two first arc-shaped grooves.

[0012] Preferably, the bottom surface of the rotating tube is provided with an annular recess with an inclined inner wall; The bottom of the rotating tube is evenly provided with a plurality of water inlets in the depression, and the water inlets are T-shaped cylindrical structures; A partition is slidably provided at the larger diameter portion of the upper portion of the water inlet, and a plurality of side grooves are evenly provided on the inner wall of the water inlet; Tension springs are fixed between the bottom surface of the partition and the inner walls of the plurality of side grooves.

[0013] Preferably, the filtering mechanism comprises: The first filter plate is arranged in an inclined frustum structure and is disposed on the upper side of the inner portion of the outer cylinder. The upper end of the flared tube penetrates the bottom surface of the first filter plate and extends upward and is rotatably connected to the first filter plate.

[0014] Preferably, the filtering mechanism further comprises: The second filter plate is hinged to the highest point of the first filter plate, and the second filter plate can only be flipped upward, and one of the feed pipes corresponds to the position of the second filter plate; Hanging rods are fixed at the edge of the top surface of the second filter plate and at the lower part of the inner wall of the feed pipe corresponding to the position of the second filter plate close to the flared pipe. A fixing rod is hung in the middle of the upper hanging rod, and both ends of the fixing rod are U-shaped structures.

[0015] Preferably, the end of the discharge pipe away from the outer cylinder is connected to a water pump, and the discharge pipe is connected to a ball valve; The upper part of the discharge pipe and the interlayer on the bottom of the outer cylinder are both provided with ball grooves for rotating with the ball valve; The end of the ball valve close to the water pump is connected to a handwheel turntable via a rotating shaft; The rotating shaft is a one-third cylindrical structure, and the side wall of the outer cylinder is provided with an axis groove for rotating with the rotating shaft. The axis groove is a cylindrical structure provided with a protrusion, and the axis groove limits the rotating shaft to only rotate 90 degrees.

[0016] Beneficial effects Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with a stirring mechanism and a reflux mechanism. Through the cooperation of the two, it can ensure that the copper foil production waste liquid and the precipitant fully react, and the precipitate can be continuously transported to the filtering mechanism during the treatment process, which not only helps the staff to perform solid-liquid separation operations on the precipitate and the waste liquid, but also makes it convenient for the staff to judge whether the copper ions in the waste liquid have been completely replaced during the reaction, so that the staff can flexibly treat the waste liquid according to different situations. The design is ingenious and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the waste liquid treatment device for copper foil production according to the present invention; Figure 2 A cross-sectional view of a waste liquid treatment device for copper foil production according to the present invention; Figure 3 for Figure 2 A partial enlarged view of middle A; Figure 4 This is a schematic structural diagram of a cross-section of the outer cylinder of the waste liquid treatment device for copper foil production according to the present invention; Figure 5 This is a schematic structural diagram of the waste liquid treatment device for copper foil production of the present invention after removing the outer cylinder; Figure 6 A cross-sectional view of an outer cylinder of a waste liquid treatment device for copper foil production according to the present invention; Figure 7 This is a schematic diagram of the internal structure of the rotating seat in the waste liquid treatment device for copper foil production of the present invention; Figure 8 for Figure 7 A partial enlarged view of B in the middle; Figure 9 This is a schematic structural diagram of a Taisheng seat and a piston plate in a waste liquid treatment device for copper foil production according to the present invention; Figure 10 A partial cross-sectional view of a rotating seat in a waste liquid treatment device for copper foil production according to the present invention; Figure 11 A partial cross-sectional view of a stirring rod and a first filter plate in a waste liquid treatment device for copper foil production according to the present invention.

[0019] The numbers in the figure represent: 100 - outer cylinder; 110 - inlet pipe; 120 - outlet pipe; 121 - water pump; 140 - baffle; 130 - guide rod; 141 - second through groove; 150 - ball valve; 160 - ball groove; 170 - handwheel turntable; 180 - shaft groove; 190 - circular groove; 200-stirring mechanism; 210-stirring rod; 220-expanding tube; 300 - filtering mechanism; 310 - first filter plate; 320 - second filter plate; 330 - hanging rod; 340 - fixing rod; 400 - counterflow mechanism; 410 - rotating tube; 411 - water inlet; 412 - partition; 413 - side groove; 414 - tension spring; 420 - lifting seat; 430 - guide block; 440 - arc groove; 441 - first arc groove; 442 - first arc groove; 450 - piston plate; 460 - connecting seat; 461 - rod groove; 500 - driving mechanism; 510 - rotating seat; 511 - first through slot; 512 - scraper; 520 - gear; 530 - motor; DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] Wastewater treatment device for copper foil production, reference Figure 1-Figure 2 The outer cylinder 100 includes an outer cylinder 100, a plurality of feed pipes 110 extending through the top surface of the outer cylinder 100, a discharge pipe 120 extending through one side of the outer cylinder 100, and a stirring mechanism 200, a filtering mechanism 300, a reverse flow mechanism 400, and a driving mechanism 500. The stirring mechanism 200 is disposed inside the outer cylinder 100 and is used to stir and mix the precipitant with the waste liquid; the filtering mechanism 300 is disposed inside the outer cylinder 100 above the stirring mechanism 200; the reverse flow mechanism 400 is connected to the stirring mechanism 200 and is used to reverse the waste liquid after the reaction to the filtering mechanism for filtration; and the driving mechanism 500 is in transmission connection with the stirring mechanism 200 and the reverse flow mechanism 400 to drive the stirring mechanism 200 and the reverse flow mechanism 400 to operate.

[0022] Specifically, such as Figure 2 、 Figure 4 As shown, the stirring mechanism 200 includes a stirring rod 210 and a flared tube 220. The stirring rod 210 is arranged in a spiral structure that is symmetrical in both directions. Any cross-section of the stirring rod 210 is annular, meaning that the stirring rod 210 is hollow. The flared tube 220 is connected to the upper end of the stirring rod 210 and communicates with the filtering mechanism 300.

[0023] like Figure 2 、 Figure 4 、 Figure 6As shown, the driving mechanism 300 is arranged on the lower side of the outer cylinder 100, and the driving mechanism 500 includes a rotating seat 510. The rotating seat 510 is arranged inside the outer cylinder 100, and the inner bottom surface of the outer cylinder 100 is provided with a circular groove 190 that rotates with the rotating seat 510; the rotating seat 510 is connected to the lower end of the stirring rod 210, and the rotating seat 510 is driven to rotate by the motor gear structure, and the interior of the rotating seat 510 is a hollow cylindrical structure.

[0024] In this embodiment, two gears 520 are provided at the lower part of the rotating base 510, one of the gears 520 is sleeved on the outer wall of the rotating base 510 and is coaxially fixedly connected to the rotating base 510, and the top surface of the other gear 520 is coaxially fixedly connected to the motor 530, and the motor 530 is embedded in the interlayer on the bottom surface of the outer cylinder 100.

[0025] like Figure 2 、 Figure 3 、 Figures 6-10 As shown, the reverse flow mechanism 400 includes a rotating tube 410, a lifting seat 420, a guide block 430, an arcuate groove 440, a piston plate 450 and a connecting seat 460. Among them: the rotating tube 410 is arranged on the top surface of the rotating seat 510, and the lower end of the rotating tube 410 passes through the top surface of the rotating seat 510 and extends into the interior thereof. The rotating tube 410 is connected to the stirring rod 210. The rotating tube 410 is a hollow structure and is connected to the stirring rod 210; the lifting seat 420 is slidably connected to the interior of the rotating seat 510; the guide block 430 is arranged on the circumferential outer wall of the lifting seat 420, and the lower part of the rotating seat 510 is an annular structure; the arcuate groove 440 is arranged on the inner wall of the rotating seat 510 and is connected to the guide block 430 sliding fit; the piston plate 450 is connected to the inside of the rotating seat 510 in a sliding manner and is arranged above the lifting seat 420, and the top surface of the piston plate 450 is gap-fitted with the inner top surface of the rotating seat 510; the connecting seat 460 connects the piston plate 450 with the center of the lifting seat 420; the connecting seat 460 is provided with a rod groove 461 with a non-circular structure at one end facing the lifting seat 420, and a guide rod 130 is provided on the inner bottom wall of the outer cylinder 100, and the guide rod 130 is connected to the rod groove 461 in an up and down sliding manner.

[0026] Specifically, such as Figure 7-Figure 8 As shown, the bottom surface of the rotating tube 410 is provided with a ring-shaped depression with an inclined inner wall; a plurality of water inlets 411 are evenly opened at the depression on the bottom surface of the rotating tube 410, and the water inlet 411 is a T-shaped cylindrical structure; a partition 412 is slidably set at the larger diameter part of the upper part of the water inlet 411, and a plurality of side grooves 413 are evenly opened on the inner wall of the water inlet 411; a tension spring 414 is fixed between the bottom surface of the partition 412 and the inner walls of the plurality of side grooves 413.

[0027] In this example, if Figure 10As shown, the arcuate groove 440 includes two first arcuate grooves 441 and two second arcuate grooves 442. The two first arcuate grooves 441 are symmetrically arranged from top to bottom along the inner wall of the rotating base 510; the two second arcuate grooves 442 are arcuate structures with a constant height, connecting the upper and lower ends of the two first arcuate grooves 441. When the guide block 430 is at its lowest point, it corresponds to the second arcuate groove 442 at the bottom. When the piston plate 450 is at its lowest point, it is located above the second arcuate groove 442 on the upper side, preventing the up and down movement of the piston plate 450 from interfering with the movement of the guide block 430 in the arcuate groove.

[0028] like Figure 3 、 Figure 6 、 Figure 10 As shown, a baffle 140 is rotatably sleeved on the upper part of the outer wall of the rotating seat 510, and the baffle 140 is an annular structure and is fixedly connected to the inner bottom surface of the outer cylinder 100; a scraper 512 is coaxially fixedly connected to the top surface of the rotating seat 510, and the lower part of the scraper 512 is an annular structure and is rotatably sleeved on the outside of the baffle 140; the bottom surface of the scraper 512 and the inner bottom surface of the outer cylinder 100 are both inverted frustum structures and are in sliding contact; a first through groove 511 is opened on the inner wall of the rotating seat 510 relative to the top of the piston plate 450; a second through groove 141 is opened on the side wall of the baffle 140 and the bottom surface of the scraper 512 relative to the first through groove 511.

[0029] In this example, if Figure 2 、 Figure 4 、 Figure 5 、 Figure 11 As shown, the filtering mechanism 300 includes a first filter plate 310 and a second filter plate 320. The first filter plate 310 is arranged in an inclined frustum and is positioned on the upper side of the outer cylinder 100. The upper end of the flared tube 220 extends through the bottom surface of the first filter plate 310 and is rotatably connected to the first filter plate 310. The second filter plate 320 is hinged to the highest point of the first filter plate 310, and the second filter plate 37 can only be flipped upward. One of the feed tubes 110 corresponds to the location of the second filter plate 320. Hanging rods 330 are fixed to the top edge of the second filter plate 320 and to the lower portion of the inner wall of the feed tube 110 corresponding to the location of the second filter plate 320, near the flared tube 220. A fixing rod 340 is attached to the middle of the upper hanging rod 330. Both ends of the fixing rod 340 have a U-shaped structure.

[0030] like Figure 4-Figure 6As shown, the discharge pipe 120 is connected to a water pump 121 at one end away from the outer cylinder 100, and a ball valve 150 is connected to the discharge pipe 120; a ball groove 160 for rotating with the ball valve 150 is provided in the upper part of the discharge pipe 120 and the interlayer on the bottom surface of the outer cylinder 100; the ball valve 150 is connected to a handwheel turntable 170 through a rotating shaft 160 at one end close to the water pump 121; the rotating shaft 160 is a one-third cylindrical structure, and the side wall of the outer cylinder 100 is provided with an axis groove 180 for rotating with the rotating shaft 160, and the axis groove 180 is a cylindrical structure provided with a protrusion, and the axis groove 180 limits the rotating shaft 160 to only rotate 90 degrees.

[0031] Working principle: The staff can add the copper foil production waste liquid to be treated into the outer cylinder 100 from one of the feed pipes 110. After the waste liquid is added, the staff can open the feed pipe 110 corresponding to the second filter plate 320. The feed pipe 110 has a larger opening for the convenience of the staff's operation. Then, the fixing rod 340 in the feed pipe 110 is removed from the hanging rod 330, and then the second filter plate 320 is turned upward along the hinge, and the U-shaped parts at both ends of the fixing rod 340 are used to fix the second filter plate 320. 20 is fixed to the two hanging rods 330 in the feed pipe 110 to ensure that the second filter plate 320 will not fall during the period. Then the staff can add lime milk or sulfide and other precipitants into the waste liquid through the gap opened by the second filter plate 320. This design is to prevent the powdered precipitant from adhering to the filter plate and causing blockage or waste. The feed pipe 110 is provided with multiple holes so that the staff can inject the precipitant and the waste liquid separately to prevent the powdered precipitant from solidifying on the inner wall of the feed pipe 110 when it comes into contact with water and causing pollution and waste. After the waste liquid and the precipitant are put in, the staff can use the motor 530 to drive the two gears 520 to move, wherein the gear 520 coaxially fixedly connected to the rotating seat 510 will drive the rotating seat 510 to rotate, and then the rotating seat 510 will drive the rotating tube 410 coaxially fixedly connected thereto to rotate together, and the relative stirring rod 210 will also rotate and produce a stirring and mixing effect on the mixture of the waste liquid and the precipitant. Through the setting of the spiral structure of the stirring rod 210, the mixture in the outer cylinder 100 simultaneously generates up and down and horizontal flows, prompting the material to form a three-dimensional circulation in the container, effectively reducing the mixing dead angle. At the same time, the spiral geometry reduces turbulent energy loss, and the power consumption is lower at the same speed, which is suitable for long-term operation. Moreover, the smooth spiral surface is not easy to adhere to materials, which is easy to clean and is not easy to get stuck with copper hydroxide or copper sulfide precipitates formed during stirring. During continuous stirring, the copper ions in the wastewater will be converted into insoluble copper hydroxide or copper sulfide precipitates with precipitants such as lime milk or sulfide; When the rotating seat 510 rotates, the lifting seat 420 therein is also affected by the sliding fit between the guide block 430 and the first arc groove 441 and the second arc groove 442. Since the lifting seat 420 and other structures thereon are restricted by the guide rod 130 and the rod groove 461 of the non-cylindrical structure, when the guide block 430 corresponds to the arc groove 440, the lifting seat 420 cannot rotate and will move upward or downward. When the lifting seat 420 corresponds to the second arc groove 442 at the lower part, the first through groove 511 and the two second through grooves 141 are in a connected state, and then the solid-liquid mixture in the outer cylinder 100 can enter Inside the rotating seat 510, under the blocking effect of the piston plate 450, the solid-liquid mixture will be between it and the inner top surface of the rotating seat 510. When the lifting seat 420 rises or falls, the first through groove 511 and the second through groove 141 are staggered, and the inside of the rotating seat 510 and the inside of the outer cylinder 100 are divided into two independent spaces by the baffle 140. During the rising process of the lifting seat 420, the solid-liquid mixture inside the rotating seat 510 will be squeezed into the rotating tube 410 from multiple water inlets 411. The water inlet 411 is connected to the partition 412 through multiple tension springs 414. This structure is similar to a one-way valve and can achieve control. The flow direction of the solid-liquid mixture in the water inlet 411 is controlled to ensure that the solid-liquid mixture can only enter the rotating tube 410 from the water inlet 411 and will not flow back into the rotating seat 510 from the rotating tube 410. When the position of the guide block 430 corresponds to the higher second arc groove 442, the piston plate 450 will remain at the highest point of its moving range for a period of time. This design is to ensure that the partition 412 in the water inlet 411 has enough time to rebound, to prevent the partition 412 from rebounding before the piston plate 450 moves down, to avoid the problem of backflow caused by the solid-liquid mixture pressing against the partition 412 due to the downward movement of the piston plate 450. Finally, when the lifting seat 4 When the piston plate 450 moves downward, the space between the top surface of the piston plate 450 and the inner top surface of the rotating seat 510 increases again. However, since the first through-groove 511 and the second through-groove 141 are still not aligned at this time, the volume of air between the piston plate 450 and the inner wall of the rotating seat 510 continues to increase, and the internal pressure will continue to decrease accordingly. Only when the position of the guide block 430 is aligned with the lower second arc-shaped groove 442 again, the first through-groove 511 and the second through-groove 141 will be connected again. Then, under the dual effects of gravity and pressure, the solid-liquid mixture in the outer cylinder 100 will flow into the rotating seat 510 and wait for the next round of pressing into the stirring mechanism 2. The solid-liquid mixture pressed into the rotating tube 410 will be gradually pushed up as other waste liquids flow in, and then continue to rise inside the stirring rod 210. Under the influence of the spiral structure of the stirring rod 210, the centrifugal force generated by the rotation can reduce particle deposition. Not only can the liquid itself adhere to the outer edge of the inner wall of the stirring rod 210 under the action of centrifugal force, but the solid sediments that are more affected by the centrifugal force will also adhere more firmly to the outer edge of the inner wall of the stirring rod 210. Compared with a vertical pipe, this design does not cause the problem of liquid in the pipe not rotating with the pipe, ensuring that the solid sediments can be transported upwards. The solid-liquid mixture transported to the upper portion from the inside of the stirring rod 210 will pass through the flared tube 220 and flow on the first filter plate 310. The flared tube 220 is provided to prevent the solid-liquid mixture from being ejected from the inside of the stirring rod 7 in a columnar shape to prevent it from contaminating the feed pipe 110 and the inner top surface of the outer cylinder 100. The solid-liquid mixture flowing on the first filter plate 310 will be subjected to solid-liquid separation by the first filter plate 310. The first filter plate 310 is provided with an inclined frustum structure to allow the solid-liquid mixture to flow in all directions. The second filter plate 320 is hinged to the highest point of the first filter plate 310. The solid-liquid mixture will be concentrated on the side away from the second filter plate 320, ensuring that the second filter plate 320 will not be blocked by sediment, making it convenient for staff to add precipitants during the processing process. After the reaction is completed, the staff only needs to turn the ball valve to open the discharge pipe 120 and use the water pump 121 to pump out the remaining waste liquid.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention 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 of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A waste liquid treatment device for copper foil production, comprising an outer cylinder (100), wherein a plurality of feed pipes (110) are provided through the top surface of the outer cylinder (100), and a discharge pipe (120) is provided through one side of the outer cylinder (100), characterized in that: Also includes: A stirring mechanism (200) is provided inside the outer cylinder (100) and is used to stir and mix the precipitant and the waste liquid; A filtering mechanism (300) is provided inside the outer cylinder (100) above the stirring mechanism (200); A backflow mechanism (400) is connected to the stirring mechanism (200) and is used to flow the waste liquid after the reaction back to the filtering mechanism for filtration; The driving mechanism (500) is in transmission connection with the stirring mechanism (200) and the reverse flow mechanism (400), and drives the stirring mechanism (200) and the reverse flow mechanism (400) to work.

2. The waste liquid treatment device for copper foil production according to claim 1, characterized in that: The stirring mechanism (200) comprises: The stirring rod (210) is arranged in a spiral structure that is symmetrical in the vertical direction, and any cross section of the stirring rod (210) is an annular structure; The flared tube (220) is connected to the upper end of the stirring rod (210) and communicates with the filtering mechanism (300).

3. The waste liquid treatment device for copper foil production according to claim 2, characterized in that: The driving mechanism (500) comprises: A rotating seat (510) is provided inside the outer cylinder (100) and is rotatably connected to the bottom wall of the outer cylinder (100); The rotating seat (510) is connected to the lower end of the stirring rod (210), and the rotating seat (510) is driven to rotate by a motor gear structure.

4. The waste liquid treatment device for copper foil production according to claim 3, characterized in that: The interior of the rotating seat (510) is a hollow cylindrical structure, and the reverse flow mechanism (400) comprises: A rotating tube (410) is provided on the top surface of the rotating seat (510) and is connected to the stirring rod (210). The rotating tube (410) is a hollow structure and is in communication with the stirring rod (210). A lifting seat (420) is slidably connected to the interior of the rotating seat (510); A guide block (430) is provided on the circumferential outer wall of the lifting seat (420); An arc-shaped groove (440) is provided on the inner wall of the rotating seat (510) and is slidably engaged with the guide block (430); A piston plate (450) is slidably connected to the interior of the rotating seat (510) and is disposed above the lifting seat (420); A connecting seat (460) connects the piston plate (450) and the center of the lifting seat (420); A non-circular rod groove (461) is provided at one end of the connecting seat (460) facing the lifting seat (420), and a guide rod (130) is provided on the inner bottom wall of the outer cylinder (100). The guide rod (130) is connected to the rod groove (461) in an upward and downward sliding manner.

5. The waste liquid treatment device for copper foil production according to claim 4, characterized in that: A baffle (140) is provided on the upper portion of the outer wall of the rotating seat (510), and the baffle (140) is an annular structure and is fixedly connected to the inner bottom surface of the outer cylinder (100); A scraper (512) is coaxially fixedly connected to the top surface of the rotating seat (510); the lower portion of the scraper (512) is an annular structure and is rotatably sleeved on the outside of the baffle (140); The bottom surface of the scraper (512) and the inner bottom surface of the outer cylinder (100) are both inverted frustum structures and are in sliding contact with each other; A first through groove (511) is formed on the inner wall of the rotating seat (510) at a position above the piston plate (450); A second through-groove (141) is provided on the side wall of the baffle (140) and the bottom surface of the scraper (512) at positions relative to the first through-groove (511).

6. The waste liquid treatment device for copper foil production according to claim 4, characterized in that: The arc-shaped groove (440) comprises: Two first arc-shaped grooves (441) are symmetrically formed from top to bottom along the inner wall of the rotating seat (510); The two second arc-shaped grooves (442) are arc-shaped structures with a constant height, and respectively connect the upper end and the lower end of the two first arc-shaped grooves (441).

7. The waste liquid treatment device for copper foil production according to claim 4, characterized in that: The bottom surface of the rotating tube (410) is provided with an annular recess with an inclined inner wall; A plurality of water inlets (411) are evenly arranged at the concave portion of the bottom surface of the rotating tube (410), and the water inlets (411) are T-shaped cylindrical structures; A partition plate (412) is slidably provided at a larger diameter portion of the upper portion of the water inlet (411), and a plurality of side grooves (413) are evenly provided on the inner wall of the water inlet (411); Tension springs (414) are fixedly provided between the bottom surface of the partition (412) and the inner walls of the plurality of side grooves (413).

8. The waste liquid treatment device for copper foil production according to claim 1, characterized in that: The filtering mechanism (300) comprises: The first filter plate (310) is arranged in an inclined frustum structure and is disposed on the upper side of the inner portion of the outer cylinder (100). The upper end of the flared tube (220) penetrates the bottom surface of the first filter plate (310) and extends upwards and is rotatably connected to the first filter plate (310).

9. The waste liquid treatment device for copper foil production according to claim 8, characterized in that: The filtering mechanism (300) further comprises: The second filter plate (320) is hinged to the highest point of the first filter plate (310), and the second filter plate (37) can only be flipped upward, and one of the feed pipes (110) corresponds to the position of the second filter plate (320); A hanging rod (330) is fixedly provided at the edge of the top surface of the second filter plate (320) and at the lower portion of the inner wall of the feed pipe (110) corresponding to the position of the second filter plate (320) and close to the flared pipe (220). A fixing rod (340) is hung in the middle of the upper hanging rod (330), and both ends of the fixing rod (340) are U-shaped structures.

10. The waste liquid treatment device for copper foil production according to claim 1, characterized in that: The end of the discharge pipe (120) away from the outer cylinder (100) is connected to a water pump (121), and the discharge pipe (120) is connected to a ball valve (150); A ball groove (160) rotatably engaged with the ball valve (150) is provided in the upper portion of the discharge pipe (120) and in the interlayer of the bottom surface of the outer cylinder (100); One end of the ball valve (150) close to the water pump (121) is connected to a handwheel turntable (170) via a rotating shaft (160); The rotating shaft (160) is a one-third cylindrical structure. The side wall of the outer cylinder (100) is provided with an axis groove (180) for rotationally cooperating with the rotating shaft (160). The axis groove (180) is a cylindrical structure provided with a protrusion. The axis groove (180) limits the rotating shaft (160) to only 90 degrees of rotation.

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