Method and device for recycling electrolytic copper foil wastewater

Abstract

The invention relates to the technical field of wastewater treatment, in particular to an electrolytic copper foil wastewater recycling device which comprises a support, a first charging barrel is installed at the top of the support, a second charging barrel is installed on the side face of the support, the second charging barrel and the first charging barrel are communicated through a pipeline, a liquid discharging hopper is communicated with the bottom of the second charging barrel, and an arc-shaped first filter screen is connected to the upper portion in the liquid discharging hopper. And a recycling mechanism is arranged on the charging barrel II. A first motor can drive a cylinder to drive a material frame to rotate, so that a copper compound blocked on a first filter screen is shoveled into the material frame through a feeding port, the material frame drives the copper compound in the material frame to continue to rotate to the position over a discharging pipe and to be aligned with a feeding port, and the copper compound in the material frame falls into the discharging pipe under the action of the gravity of the copper compound. And the cylinder rotates and drives the spiral conveying shaft to rotate so as to send out the copper compound in the discharge pipe, so that the continuous operation of separating the copper compound from water is realized, the requirement of manual intervention is reduced, the operation cost is reduced, and the wastewater treatment effect and efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and particularly to a method and device for resource utilization of electrolytic copper foil wastewater. Background Art

[0002] The resource utilization of electrolytic copper foil wastewater refers to the treatment of the wastewater generated during the production of electrolytic copper foil to recover valuable components therein and achieve the recycling of water resources. This process not only contributes to environmental protection but also reduces production costs and improves resource utilization efficiency. Electrolytic copper foil wastewater usually contains high concentrations of copper ions, sulfuric acid, as well as a small amount of organic additives and other impurities. If these components are directly discharged without proper treatment, they will cause serious pollution to the environment.

[0003] Currently, the methods for resource utilization of electrolytic copper foil wastewater include chemical precipitation method, electrochemical method, membrane separation technology, ion exchange resin method, and biological method, etc. Due to its simple and easy implementation, the chemical precipitation method is widely used. This method is to add chemical agents (such as sodium hydroxide or sodium carbonate) to the wastewater to form insoluble copper hydroxide or copper carbonate precipitates of copper ions, and then separate the copper compounds by means of filtration and other means.

[0004] Although some existing devices can achieve the preliminary filtration and separation of copper compounds and water, many devices rely on simple filter meshes to perform this operation, that is, directly filter and separate copper compounds and water through the filter mesh. During the treatment process, water passes through the filter mesh and is discharged, while the copper compounds remain on the filter mesh. When the copper compounds on the filter mesh accumulate to a certain extent, it is necessary to suspend the operation to clean and collect these precipitates, which leads to the interruption of the filtration and separation process and makes it difficult to continuously carry out the separation operation of copper compounds and water, reducing the overall treatment efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide an electrolytic copper foil wastewater resource utilization device that can continuously carry out the separation operation of copper compounds and water in order to solve the above problems.

[0006] The present invention realizes the above object through the following technical solutions: An electrolytic copper foil wastewater resource utilization device, which includes a bracket. A first material cylinder is installed at the top of the bracket. The upper part of the first material cylinder is communicated with a liquid inlet hopper. A second material cylinder is installed on the side surface of the bracket. The second material cylinder and the first material cylinder are communicated through a pipeline. The bottom of the second material cylinder is communicated with a liquid discharge hopper. An arc-shaped first filter screen is connected to the upper part inside the liquid discharge hopper. A recovery mechanism is provided on the second material cylinder. The recovery mechanism includes a discharge pipe connected to the second material cylinder. Both ends of the discharge pipe are arranged in an open manner. A cylinder located inside the second material cylinder is rotatably connected to the outer wall of the discharge pipe. Material frames are installed on the cylinder at intervals along the circumferential direction. A feed inlet is opened on one side of each material frame. One side of the material frame near its upper feed inlet is designed with an inclined surface. A second filter screen is embedded on the side of the material frame far from the feed inlet. A feeding port is opened at the top of the discharge pipe. A first motor for driving the cylinder to rotate is installed inside the bracket. One end of the cylinder far from the first motor is arranged in an open manner. A spiral conveyor shaft located inside the discharge pipe is connected to the inner wall of the cylinder.

[0007] Preferably, a fishing mechanism for fishing floating objects is provided inside the first material cylinder. The fishing mechanism includes a circular ring rotatably connected to the upper part inside the first material cylinder. A fishing frame that can be pulled out upward is provided inside the circular ring. A pick-and-place opening for picking and placing the fishing frame is opened at the top of the first material cylinder. Both the top and bottom of the fishing frame are arranged in an open manner. Through openings for floating objects to enter are spaced apart on the side wall of the fishing frame. A third filter screen that can be pulled out upward is provided inside the fishing frame. A handle is connected to the top of the third filter screen. A driving component for driving the circular ring to rotate is provided outside the second material cylinder.

[0008] Preferably, the fishing mechanism further includes a baffle and a torsion spring. A baffle is hinged in each through opening. A torsion spring is connected between the baffle and the fishing frame.

[0009] Preferably, a scraper is slidably connected in each material frame. One side of the scraper near the feed inlet is designed with an inclined surface.

[0010] Preferably, two heavy objects are symmetrically connected to each scraper.

[0011] Preferably, the driving component includes a second motor installed outside the second material cylinder. A gear is connected to the output shaft of the second motor. A toothed ring is connected to the outer wall of the circular ring. The toothed ring meshes with the gear.

[0012] Preferably, two guide rails are symmetrically connected to the outside of the second material cylinder. A collection frame is slidably arranged between the two guide rails for collecting copper compounds discharged from the discharge pipe.

[0013] An electrolytic copper foil wastewater resource utilization method includes the following steps: S1. Inject wastewater. Inject the electrolytic copper foil wastewater that has undergone chemical precipitation into the first material cylinder through the liquid inlet hopper. S2. Separate the copper compound and water. The wastewater enters the second barrel through a pipeline, and the copper compound and water are separated by a filter screen. The water directly passes through the filter screen and the liquid discharge hopper and is discharged downward, while the copper compound is blocked on the filter screen. S3. Clean the copper compound on the filter screen. Control the first motor to drive the cylinder to drive the material frame to rotate slowly, so as to shovel the copper compound blocked on the filter screen into the material frame through the feed port. The material frame drives the copper compound inside it to continue rotating to directly above the discharge pipe and align with the feeding port. Under the action of its own gravity, the copper compound in the material frame falls into the discharge pipe. S4. Discharge the copper compound. The rotation of the cylinder drives the rotation of the screw conveyor shaft to send the copper compound in the discharge pipe outwards.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The first motor can drive the cylinder to drive the material frame to rotate, so as to shovel the copper compound blocked on the filter screen into the material frame through the feed port. The material frame drives the copper compound inside it to continue rotating to directly above the discharge pipe and align with the feeding port. Under the action of its own gravity, the copper compound in the material frame falls into the discharge pipe. The rotation of the cylinder drives the rotation of the screw conveyor shaft to send the copper compound in the discharge pipe outwards, realizing the continuous and uninterrupted separation operation of the copper compound and water, reducing the need for manual intervention, lowering the operating cost, and improving the effect and efficiency of wastewater treatment.

[0015] 2. The driving component drives the fishing frame to rotate, enabling the floating objects floating on the liquid surface to enter the fishing frame through the through port, realizing the automatic fishing of the floating objects, thereby being able to pre-remove the floating objects in the wastewater, and then significantly improving the efficiency and effect of the subsequent copper compound recovery process, ensuring the stability and reliability of the entire wastewater treatment operation.

[0016] 3. The downward movement of the scraper can push the copper compound in the material frame downward to prevent the copper compound from adhering and staying in the material frame, thereby ensuring that the copper compound in the material frame can smoothly fall into the discharge pipe and be discharged. The heavy object block can increase the weight of the scraper, effectively avoiding the jamming phenomenon of the scraper getting stuck at a certain position in the material frame, and ensuring the smoothness and reliability of the operation of the scraper pushing the copper compound. Description of the Drawings

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0018] Figure 2 It is an installation schematic diagram of the recovery mechanism of the present invention.

[0019] Figure 3 It is an exploded view of the recovery mechanism of the present invention.

[0020] Figure 4This is a three-dimensional structural schematic diagram of the recovery mechanism of the present invention.

[0021] Figure 5 This is an installation schematic diagram of the fishing mechanism of the present invention.

[0022] Figure 6 This is a partial three-dimensional structural schematic of the fishing mechanism of the present invention Figure 1 。

[0023] Figure 7 This is a partial three-dimensional structural schematic of the fishing mechanism of the present invention Figure 2 。

[0024] Figure 8 This is a three-dimensional structural schematic diagram of the baffle and torsion spring of the present invention.

[0025] Reference numerals in the figure: 1 - support, 2 - first material cylinder, 3 - liquid inlet hopper, 4 - second material cylinder, 41 - liquid discharge hopper, 42 - first filter screen, 5 - pipeline, 61 - discharge pipe, 62 - cylinder, 63 - material frame, 64 - feed inlet, 65 - second filter screen, 66 - first motor, 67 - screw conveyor shaft, 68 - feeding port, 70 - picking and placing port, 71 - ring, 72 - slider, 73 - fishing frame, 74 - through port, 75 - third filter screen, 76 - handle, 77 - second motor, 78 - gear, 79 - toothed ring, 710 - baffle, 711 - torsion spring, 8 - scraper, 9 - heavy weight, 10 - guide rail, 11 - collection frame. Detailed implementation manners

[0026] Please refer to Figures 1 - 4, A resource recycling device for electrolytic copper foil wastewater, comprising a support 1. At the top of the support 1, a first material cylinder 2 is installed. The upper rear part of the first material cylinder 2 is communicated with a liquid inlet hopper 3. On the front side of the support 1, a second material cylinder 4 is installed. The second material cylinder 4 is perpendicular to the first material cylinder 2. A pipeline 5 is connected between the rear side of the second material cylinder 4 and the bottom of the first material cylinder 2. The bottom of the first material cylinder 2 is designed with a middle-low and outer-high inclination to concentrate the wastewater and guide it to be discharged through the pipeline 5. The bottom of the second material cylinder 4 is communicated with a liquid discharge hopper 41. An arc-shaped first filter screen 42 is connected to the upper part inside the liquid discharge hopper 41. A recycling mechanism is provided on the second material cylinder 4. The recycling mechanism includes a discharge pipe 61 embedded in the middle of the second material cylinder 4. Both the front and rear ends of the discharge pipe 61 are open. A cylinder 62 located inside the second material cylinder 4 is rotatably connected to the outer wall of the discharge pipe 61. The front side of the cylinder 62 is open. Four material frames 63 are embedded and installed on the cylinder 62 at circumferential intervals. An inlet 64 is opened on one side of each material frame 63. One side of the material frame 63 near its upper inlet 64 is designed with an inclined surface to smoothly shovel the copper compounds on the first filter screen 42 into the material frame 63. A second filter screen 65 is embedded and installed on the side of the material frame 63 away from the inlet 64. A feeding port 68 is opened at the top of the discharge pipe 61. A first motor 66 is installed on the front side inside the support 1. The output shaft of the first motor 66 is connected to the rear side wall of the cylinder 62 to drive the cylinder 62 to rotate. A spiral conveyor shaft 67 located inside the discharge pipe 61 is connected to the inner wall of the rear side of the cylinder 62. Two guide rails 10 are symmetrically connected to the left and right on the front side wall of the second material cylinder 4. A collection box 11 is slidably arranged between the two guide rails 10. The collection box 11 is used to collect the copper compounds discharged from the discharge pipe 61.

[0027] Inject the electrolytic copper foil wastewater after chemical precipitation into the first cylinder 2 through the liquid inlet hopper 3. The wastewater then enters the second cylinder 4 through the pipeline 5. The copper compounds and water are separated by the first filter screen 42. The water directly passes through the first filter screen 42 and the drain hopper 41 and is discharged downward. Connect the external discharge pipe to the drain hopper 41 to discharge the water to a suitable location. The copper compounds are blocked on the first filter screen 42. Control the first motor 66 to drive the cylinder 62 to rotate slowly, thereby driving the material frame 63 to rotate slowly. When the material frame 63 rotates to contact the arc-shaped first filter screen 42, the material frame 63 continues to rotate and shovels up the copper compounds on the first filter screen 42 through the inclined surface on its side close to the feed inlet 64. The copper compounds then enter the material frame 63 through the feed inlet 64. Subsequently, the material frame 63 continues to rotate and drives the copper compounds inside it to rotate to the upper side of the discharge pipe 61. During this process, the water that enters the material frame 63 is discharged downward through the second filter screen 65 to prevent a large amount of water from being entrained by the subsequent copper compounds into the discharge pipe 61. When the material frame 63 drives the copper compounds inside it to rotate directly above the discharge pipe 61 and aligns with the feeding port 68, the copper compounds in the material frame 63 fall into the discharge pipe 61 under the action of their own gravity. Then the material frame 63 continues to rotate to the lower side of the discharge pipe 61 to perform the next round of copper compound cleaning and collection operations, realizing the continuous and uninterrupted separation operation of copper compounds and water, reducing the need for manual intervention, lowering the operating cost, and improving the effect and efficiency of wastewater treatment. The rotation of the cylinder 62 drives the rotation of the screw conveyor shaft 67, and the rotation of the screw conveyor shaft 67 sends the copper compounds in the discharge pipe 61 forward. The copper compounds discharged from the discharge pipe 61 fall into the collection frame 11 for collection.

[0028] There may be floating substances insoluble in water in the wastewater, and these floating substances will have a negative impact on the separation operation of copper compounds and water. To avoid this situation, please refer to Figures 4 - 8, a salvage mechanism for salvaging floating objects is provided inside the first barrel 2. The salvage mechanism includes a circular ring 71 rotatably connected to the upper part inside the first barrel 2. The circular ring 71 is located above the liquid inlet hopper 3. Two T-shaped sliding grooves are formed on the inner wall of the circular ring 71. T-shaped sliders 72 are slidably arranged in both of the two T-shaped sliding grooves. A salvage frame 73 located inside the circular ring 71 is connected between the two T-shaped sliders 72. A pick-up and placement opening 70 for picking up and placing the salvage frame 73 is formed on the front side of the top of the first barrel 2. The top and bottom of the salvage frame 73 are both open. Through openings 74 for floating objects to enter are spaced apart from front to back on the right side wall of the salvage frame 73. Guide grooves are formed on the inner walls of the front and rear sides of the salvage frame 73. A third filter screen 75 that can be pulled out upward is slidably arranged between the two guide grooves. A handle 76 is connected to the top of the third filter screen 75. A baffle 710 is hinged in each through opening 74. A torsion spring 711 is connected between the baffle 710 and the salvage frame 73. A driving assembly for driving the circular ring 71 to rotate is provided outside the second barrel 4. The driving assembly includes a second motor 77 installed on the front side of the outer wall of the second barrel 4. A gear 78 is connected to the output shaft of the second motor 77. A toothed ring 79 is connected to the outer wall of the circular ring 71. The toothed ring 79 meshes with the gear 78.

[0029] Control the second motor 77 to work so as to drive the gear 78 to drive the toothed ring 79 to rotate, thereby driving the circular ring 71 to drive the salvage frame 73 to rotate through the slider 72. When the salvage frame 73 rotates, under the pushing action of the waste water, the baffle 710 rotates inward to open, compressing the torsion spring 711 to release the blockage of the through opening 74. Subsequently, the salvage frame 73 continues to rotate, enabling the floating objects floating on the liquid surface to enter the salvage frame 73 through the through opening 74, realizing the automatic salvage of the floating objects, thereby being able to pre-remove the floating objects in the waste water, and further being able to significantly improve the efficiency and effect of the subsequent copper compound recovery process, ensuring the stability and reliability of the entire waste water treatment operation. When the salvage frame 73 is filled with floating objects, turn off the second motor 77 to stop the salvage frame 73 from rotating. Under the reset action of the torsion spring 711, the baffle 710 rotates outward to close, re-blocking the through opening 74 to prevent the floating objects inside from being discharged through the through opening 74 when the salvage frame 73 is taken out subsequently. Then, take out the salvage frame 73 upward. The waste water in the salvage frame 73 is discharged downward through the third filter screen 75 into the first barrel 2, while the floating objects are blocked by the third filter screen 75 inside the salvage frame 73. After the salvage frame 73 is taken out, the floating objects inside can be poured out. Pull the handle 76 upward to pull out the third filter screen 75 upward from the salvage frame 73 to facilitate the subsequent cleaning of the third filter screen 75. After the third filter screen 75 is cleaned, lower the third filter screen 75 to reset. Finally, put the salvage frame 73 back into the circular ring 71, and then the next round of floating object salvage operation can be carried out.

[0030] Please refer to Figure 2 and Figure 4, a scraper 8 is slidably connected to each material box 63. One side of the scraper 8 close to the feed inlet 64 is designed with an inclined surface, which can smoothly introduce the copper compound into the material box 63. Two heavy blocks 9 are symmetrically connected to the front and back of each scraper 8.

[0031] The rotation of the material box 63 drives the rotation of the scraper 8. When the material box 63 drives the scraper 8 inside it to rotate to directly above the cylinder 62, under the action of gravity, the scraper 8 moves downward to push the copper compound in the material box 63 downward, so as to prevent the copper compound from adhering and staying in the material box 63, and ensure that the copper compound in the material box 63 can be smoothly put into the discharge pipe 61 and discharged downward. When the material box 63 drives the scraper 8 inside it to rotate to directly below the cylinder 62, under the action of gravity, the scraper 8 moves downward back to the bottom inside the material box 63 to prepare for the next round of pushing the copper compound. The heavy block 9 can increase the weight of the scraper 8, ensure that the scraper 8 can move downward smoothly, effectively avoid the jamming phenomenon that the scraper 8 gets stuck at a certain position in the material box 63, and ensure the smoothness and reliability of the operation of the scraper 8 pushing the copper compound.

[0032] A method for resource utilization of electrolytic copper foil wastewater includes the following steps: S1. Inject wastewater. Inject the electrolytic copper foil wastewater that has undergone chemical precipitation into the first material cylinder 2 through the liquid inlet hopper 3; S2. Separate the copper compound and water. The wastewater enters the second material cylinder 4 through the pipeline 5, and the copper compound and water are separated by the first filter screen 42. The water directly passes through the first filter screen 42 and the drain hopper 41 and is discharged downward, while the copper compound is blocked on the first filter screen 42; S3. Clean the copper compound on the first filter screen 42. Control the first motor 66 to drive the cylinder 62 to drive the material box 63 to rotate slowly, so as to shovel the copper compound blocked on the first filter screen 42 into the material box 63 through the feed inlet 64. The material box 63 drives the copper compound inside it to continue to rotate to directly above the discharge pipe 61 and align with the feeding port 68. The copper compound in the material box 63 falls into the discharge pipe 61 under the action of its own gravity; S4. Discharge the copper compound. The rotation of the cylinder 62 drives the rotation of the screw conveyor shaft 67 to send the copper compound in the discharge pipe 61 forward, realizing the continuous and uninterrupted separation operation of the copper compound and water.

Claims

1. A device for recycling wastewater from electrolytic copper foil, comprising a support (1), a barrel (2) being mounted on the top of the support (1), a liquid inlet hopper (3) being connected to the top of the barrel (2), a barrel (4) being mounted on the side of the support (1), the barrel (4) being connected to the barrel (2) through a pipe (5), a liquid drain hopper (41) being connected to the bottom of the barrel (4), and an arc-shaped filter screen (42) being connected to the top of the liquid drain hopper (41), characterized in that: The second barrel (4) is provided with a recovery mechanism, which includes a discharge pipe (61) connected to the second barrel (4), both ends of the discharge pipe (61) are open, a cylinder (62) located in the second barrel (4) is rotatably connected to the outer wall of the discharge pipe (61), and material frames (63) are installed on the cylinder (62) at intervals along the circumferential direction, and each material frame (63) has a feed port (64) on one side, and the material frame (63) is close to the upper feed port (64) thereof. ) is designed with an inclined surface, a filter screen 2 (65) is embedded on the side of the material frame (63) away from the feed port (64), a feeding port (68) is opened on the top of the discharge pipe (61), a motor 1 (66) for driving the cylinder (62) to rotate is installed in the bracket (1), the end of the cylinder (62) away from the motor 1 (66) is open, and the inner wall of the cylinder (62) is connected to a spiral conveying shaft (67) located in the discharge pipe (61).

2. The electrolytic copper foil wastewater resource recovery device according to claim 1, characterized in that: The first barrel (2) is provided with a salvaging mechanism for salvaging floating objects, the salvaging mechanism comprising a circular ring (71) rotatably connected to the upper inner portion of the first barrel (2), a salvaging frame (73) capable of being pulled out upwards is provided on the inner side of the circular ring (71), a take-in and put-out opening (70) for taking in and putting in the salvaging frame (73) is provided on the top of the first barrel (2), the top and bottom of the salvaging frame (73) are both open, a through opening (74) for the floating objects to enter is provided on the side wall of the salvaging frame (73), a filter screen (75) capable of being pulled out upwards is provided in the salvaging frame (73), a handle (76) is connected to the top of the filter screen (75), and a driving assembly for driving the circular ring (71) to rotate is provided on the outside of the second barrel (4).

3. The electrolytic copper foil wastewater resource recovery device according to claim 2, characterized in that: The salvaging mechanism further comprises a baffle (710) and a torsion spring (711); a baffle (710) is hingedly connected in each through opening (74); and a torsion spring (711) is connected between the baffle (710) and the salvaging frame (73).

4. The electrolytic copper foil wastewater resource recovery device according to claim 3, characterized in that: A scraper (8) is slidably connected to each material frame (63), and a side of the scraper (8) close to the material feed port (64) is designed with an inclined surface.

5. The electrolytic copper foil wastewater resource recovery device according to claim 4, characterized in that: Two weight blocks (9) are symmetrically connected to each scraper (8).

6. The electrolytic copper foil wastewater resource recovery device according to claim 5, characterized in that: The driving assembly comprises a second motor (77) mounted outside the second barrel (4); a gear (78) is connected to the output shaft of the second motor (77); a gear ring (79) is connected to the outer wall of the ring (71); and the gear ring (79) meshes with the gear (78).

7. The electrolytic copper foil wastewater resource recovery device according to claim 6, characterized in that: Two guide rails (10) are symmetrically connected to the outside of the second barrel (4), and a collecting frame (11) is slidably provided between the two guide rails (10) for collecting the copper compounds discharged from the discharge pipe (61).

8. A method for recycling electrolytic copper foil wastewater, based on the electrolytic copper foil wastewater recycling device according to claim 1, characterized in that: The following steps are involved: S1, injecting wastewater, injecting the electrolytic copper foil wastewater that has undergone chemical precipitation into the barrel 1 (2) through the liquid inlet hopper (3); S2, separation of copper compounds and water, waste water enters barrel 2 (4) through pipe (5), copper compounds and water are separated through filter 1 (42), water is directly discharged downward through filter 1 (42) and drain bucket (41), and copper compounds are blocked on filter 1 (42); S3, cleaning the copper compounds on the filter screen 1 (42), controlling the motor 1 (66) to drive the cylinder (62) to drive the material frame (63) to rotate slowly, so that the copper compounds blocked on the filter screen 1 (42) are shoveled into the material frame (63) through the feed inlet (64), and the material frame (63) drives the copper compounds therein to continue to rotate to the top of the discharge pipe (61) and align with the feed inlet (68), and the copper compounds in the material frame (63) fall into the discharge pipe (61) under the action of their own gravity; S4, discharging the copper compound, the cylinder (62) rotates to drive the screw conveying shaft (67) to rotate and deliver the copper compound in the discharge pipe (61) to the outside.

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