Zinc-nickel alloy electroplating wastewater treatment device

Abstract

The invention discloses a zinc-nickel alloy electroplating wastewater treatment device which comprises a wastewater pool and further comprises a vibration mechanism and a separation mechanism, the vibration mechanism comprises an inclined vibration plate, and a springback assembly for connecting the vibration plate and the wastewater pool is installed between the vibration plate and the wastewater pool; the separating mechanism comprises a rotating shaft perpendicular to the pool bottom, the rotating shaft is located on the lower side of the vibrating plate, the bottom end of the rotating shaft is provided with a triggering piece abutting against the vibrating plate, the top end of the rotating shaft is provided with a servo motor driving the rotating shaft to rotate, and spiral blades distributed spirally are fixed to the circumferential side wall of the rotating shaft. The spiral blade comprises two spiral frameworks, a filter screen is installed between the two spiral frameworks, a sludge discharging mechanism is arranged at the top end of the spiral blade, the rotating shaft drives the spiral blade to rotate, sludge sliding to the lower side of the vibrating plate is conveyed upwards, and effective separation of the sludge and wastewater is achieved; and the sludge can be cleaned without emptying the electroplating wastewater in the wastewater pool.

Description

Technical Field

[0001] The present application relates to the technical field of wastewater pool sludge cleaning, and in particular to a zinc-nickel alloy electroplating wastewater treatment device. Background Art

[0002] In the industrial production process, zinc-nickel alloy electroplating has two systems, acidic and alkaline. Among them, the alkaline system currently occupies a dominant position in industrial production due to its advantages in coating quality, plating solution stability and process operation convenience. However, the resulting electroplating wastewater treatment problem has received increasing attention. In order to ensure environmental safety and sustainable resource utilization, electroplating wastewater treatment has become an important part of industrial wastewater management. During the treatment process, it is usually necessary to adjust the pH of the electroplating wastewater, add oxidants and chelating agents, etc. to achieve chelation and precipitation removal of heavy metal ions. However, after long-term operation, a large amount of sludge sediment will accumulate at the bottom of the electroplating wastewater pool during the chelation process, which not only affects the efficiency of the chelation precipitation reaction, but may also cause equipment blockage and maintenance difficulties. Therefore, how to efficiently clean the sludge in the wastewater pool has become a technical problem that needs to be solved urgently.

[0003] Currently, common methods for cleaning sludge in wastewater pools include completely emptying the pool and then performing manual or mechanical cleaning, as well as using hydraulic flushing combined with external suction devices. Specifically, the emptying method completely drains the sewage from the wastewater pool to expose the sludge at the bottom, which is then cleaned using tools such as forklifts and scrapers. The hydraulic flushing method uses high-pressure water to flush the sludge and remove it through external suction equipment.

[0004] In the prior art, whether it is the emptying method or the hydraulic flushing method, when cleaning the sludge sediment at the bottom of the electroplating wastewater pool, the electroplating wastewater pool needs to be emptied in advance. This process consumes a lot of time and water resources, and the electroplating wastewater pool cannot be operated continuously; and in order to ensure that the electroplating wastewater pool can operate continuously for a long time, the sludge sediment at the bottom of the electroplating wastewater pool needs to be cleaned regularly. The electroplating wastewater pool needs to be emptied every time the cleaning is performed, which reduces the efficiency of the electroplating wastewater pool treatment. Summary of the Invention

[0005] In order to facilitate the cleaning of sludge at the bottom of the electroplating wastewater pool, a zinc-nickel alloy electroplating wastewater treatment device is provided.

[0006] The above-mentioned application objectives of this application are achieved through the following technical solutions: A zinc-nickel alloy electroplating wastewater treatment device includes a wastewater tank, a vibration mechanism, and a separation mechanism. The vibration mechanism includes an inclined vibration plate, and a rebound component is installed between the vibration plate and the bottom of the wastewater tank to connect the two. The separation mechanism includes a rotating shaft perpendicular to the bottom of the pool, the rotating shaft is located on the lower side of the vibration plate, the bottom end of the rotating shaft is provided with a trigger member abutting the vibration plate, the top end of the rotating shaft is provided with a servo motor for driving the rotating shaft to rotate, and spirally distributed spiral blades are fixed on the circumferential side wall of the rotating shaft. The spiral blades include two spiral skeletons, and a filter screen is installed between the two spiral skeletons. The top end of the spiral blades is provided with a mud discharge mechanism.

[0007] By adopting the above technical solution, the vibration plate is connected to the bottom of the wastewater pool with the help of a rebound component, and can generate vibration under the action of a trigger, effectively loosening the sludge on the bottom of the pool and causing it to slide to the lower side of the vibration plate. The rotating shaft drives the spiral blade to rotate under the drive of the servo motor, and the sludge that has fallen to the lower side of the vibration plate is transported upward, thereby realizing effective separation of sludge and wastewater. The sludge discharge mechanism can promptly discharge the sludge transported up from the top of the spiral blade out of the wastewater pool, thereby completing the sludge cleaning process. Sludge cleaning can be carried out without emptying the electroplating wastewater in the wastewater pool. After adding oxidants and chelating agents during the electroplating wastewater treatment process, the sludge can be separated simultaneously with the zinc-nickel chelation precipitation, which significantly improves the treatment efficiency and continuous operation capacity of the electroplating wastewater pool.

[0008] Preferably, a plurality of support frames are installed between the two spiral frames, and the support frames are located on the lower surface of the filter screen.

[0009] By adopting the above technical solution, when the spiral blades are transporting sludge, the filter screen is used to transport the sludge. A support frame is installed on the lower surface of the filter screen to provide certain support for the filter screen, thereby enhancing the stability of the spiral blade structure and improving the stability of the filter screen in transporting sludge.

[0010] Preferably, a limiting block is fixed on the circumferential side wall of the spiral blade facing the rotating shaft, and a limiting groove is opened on the outer circumferential side wall of the rotating shaft for the limiting block to be embedded in. The spacing of the limiting grooves in the axial direction of the rotating shaft is greater than the length of the limiting block in the axial direction of the rotating shaft, and when the trigger member is not in contact with the vibration plate, the bottom end of the spiral blade is in contact with the vibration plate.

[0011] By adopting the above technical solution, the coordinated design of the limit block and the limit groove enables the spiral blade to have space to move in the axial direction of the rotating shaft. When the trigger member is separated from the vibration plate, the bottom end of the spiral blade contacts the vibration plate and is subjected to its force to rise along the axial direction of the rotating shaft; and when the trigger member contacts the vibration plate, the vibration plate presses down and no longer supports the spiral blade, causing the spiral blade to descend along the axial direction of the rotating shaft. The spiral blade vibrates during the rising and falling process, thereby increasing the separation effect between sludge and wastewater, and ensuring the stability and efficiency of the device operation.

[0012] Preferably, there are multiple rebound components.

[0013] By adopting the above technical solution, the setting of multiple rebound components can enhance the reset ability of the vibration plate after being impacted, ensuring that the vibration plate always maintains a stable vibration state, which not only improves the loosening effect of the vibration plate on the sludge, but also extends the service life of the device, thereby improving the overall efficiency and reliability of sludge cleaning in the wastewater tank Preferably, the rebound assembly includes a fixed shell fixed to the bottom of the pool and a guide rod sliding in the fixed shell, one end of the guide rod is fixedly connected to the vibration plate vertically, and a reset spring is connected between the other end of the guide rod and the fixed shell.

[0014] By adopting the above technical solution, the vibration plate can be displaced when subjected to external force. When the external force disappears, the reset spring will drive the guide rod to reset, thereby driving the vibration plate to return to its initial position, so that the vibration plate has good rebound performance, which can effectively prevent the vibration plate from being deformed or stuck due to long-term force, ensuring the stable operation of the device. At the same time, the fixed shell guides and limits the guide rod, thereby improving the reliability of the vibration plate movement and thereby improving the sludge cleaning efficiency.

[0015] Preferably, a plurality of trigger members are provided, and the trigger members are distributed along the circumferential direction of the rotating shaft.

[0016] By adopting the above technical solution, the trigger members are set to be multiple and distributed along the circumference of the rotating shaft. When the rotating shaft rotates one circle, multiple trigger members can contact the vibration plate in turn and drive it to vibrate. Compared with a single trigger member, this design significantly improves the vibration frequency of the vibration plate, thereby enhancing the loosening effect of the sludge. The increase in vibration frequency enables the sludge on the higher side of the vibration plate to slide to the lower side more efficiently, thereby promoting the centralized collection and subsequent treatment of the sludge, and greatly improving the efficiency and effect of sludge cleaning.

[0017] Preferably, an anti-drop cylinder is fixed on the side of the servo motor facing the wastewater tank, and when the spiral blade rotates along the axial direction of the rotating shaft, the outer peripheral side wall of the spiral blade is aligned with the inner peripheral side wall of the anti-drop cylinder.

[0018] By adopting the above technical solution, when the spiral blade rotates along the axial direction of the rotating shaft, the outer peripheral side wall of the spiral blade remains aligned with the inner peripheral side wall of the anti-drop cylinder. During this process, the anti-drop cylinder can effectively prevent the sludge carried by the spiral blade from falling off, and at the same time limit the spiral blade in circumferential movement. The wastewater can pass through the anti-drop cylinder smoothly, while the sludge is intercepted and transported upward along with the spiral blade, thereby significantly improving the separation efficiency and effect of wastewater and sludge.

[0019] Preferably, the mud discharge mechanism includes a guide plate fixed to the top of the wastewater pool, one end of the guide plate is located below the outlet of the top end of the spiral blade, and the other end of the guide plate is connected to a sludge tank. A drive motor is also provided above the guide plate, and a scraper is fixed on the circumferential side wall of the output shaft of the drive motor, and the scraper is in contact with the upper surface of the guide plate.

[0020] By adopting the above technical solution, the setting of the guide plate can guide the sludge discharged from the top of the spiral blade to slide smoothly into the sludge tank. The scraper fits tightly against the upper surface of the guide plate, and can efficiently remove the residual sludge on the guide plate. After the spiral blade pushes the sludge to the guide plate, as the drive motor rotates, the scraper continuously scrapes the sludge on the guide plate, effectively preventing sludge accumulation and avoiding blockage problems caused by sludge residue. At the same time, it ensures that the sludge is thoroughly cleaned, thereby improving the sludge conveying efficiency and the reliability of the overall device.

[0021] Preferably, the number of the vibration mechanism, separation mechanism and mud discharge mechanism is equal, and several of each are provided.

[0022] By adopting the above technical solution, it is possible to achieve simultaneous cleaning of multiple areas in the wastewater pool. Multiple vibration mechanisms act on different areas respectively to loosen the sludge and guide it to the corresponding separation mechanism position. The rotating shaft drives the spiral blades to rotate, effectively completing the separation operation of sludge and wastewater. The separated sludge is discharged from the wastewater pool in an orderly manner through their respective sludge discharge mechanisms. It is suitable for the cleaning needs of large-scale wastewater pools, significantly improves the cleaning efficiency, and ensures the continuity and efficiency of the cleaning process.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. Through the cooperation of the vibration mechanism and the separation mechanism, the vibration plate is used to loosen the sludge and vibrate it to the bottom of the spiral blade. The spiral blade then rotates and rises to achieve efficient sludge separation and transportation. Cleaning can be completed without emptying the wastewater pool, significantly reducing water waste and improving cleaning efficiency. 2. The spiral blades on the rotating shaft rotate under the drive of the servo motor, which can continuously transport the sludge from the bottom of the pool to the sludge discharge mechanism, ensuring the automation and continuity of the cleaning process and meeting the needs of long-term stable operation of the electroplating wastewater pool; 3. The coordinated design of the limit block and the limit groove allows the spiral blade to have space for movement in the axial direction of the rotating shaft. The spiral blade vibrates during the rising and falling process, which increases the separation effect between sludge and wastewater and ensures the stability and efficiency of the device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a zinc-nickel alloy electroplating wastewater treatment device; Figure 2 for Figure 1 sectional view of Figure 3 for Figure 2 A local enlarged view at point A; Figure 4 A schematic diagram of a separation mechanism; Figure 5 It is a cross-sectional view when the trigger member is out of contact with the vibration plate; Figure 6 for Figure 1 A partial enlarged view at point B.

[0025] Figure numerals: 1. wastewater tank; 11. water inlet; 12. first feed port; 13. second feed port; 2. vibration mechanism; 21. vibration plate; 22. rebound assembly; 221. fixed shell; 222. guide rod; 223. reset spring; 3. separation mechanism; 31. rotating shaft; 311. limiting groove; 32. servo motor; 33. trigger; 34. spiral blade; 341. spiral skeleton; 342. filter screen; 343. support skeleton; 344. limiting block; 35. anti-drop tube; 4. mud discharge mechanism; 41. guide plate; 42. sludge tank; 43. drive motor; 44. scraper. DETAILED DESCRIPTION

[0026] The following is a further detailed description with reference to the accompanying drawings: As attached Figure 1 and attached Figure 2 As shown, a zinc-nickel alloy electroplating wastewater treatment device includes a wastewater tank 1, a vibration mechanism 2, a separation mechanism 3 and a sludge discharge mechanism 4. One side of the wastewater tank 1 is respectively provided with a water inlet 11 for adding electroplating wastewater, a first feed port 12 for adding an oxidant and a second feed port 13 for adding a chelating agent. After the electroplating wastewater is added to the wastewater tank 1, it is necessary to first add an oxidant to break the chelate of the electroplating wastewater in the wastewater tank 1, and then add the chelating agent to form a chelated precipitate, so that sludge precipitate is formed at the bottom of the wastewater tank 1.

[0027] As attached Figure 2 and attached Figure 3 As shown, the vibration mechanism 2 is located at the bottom of the wastewater tank 1. The vibration mechanism 2 includes an inclined vibration plate 21. The ends of the vibration plate 21 are respectively located on both sides of the bottom of the wastewater tank 1. A rebound component 22 connected to the bottom of the tank is fixed on the side of the vibration plate 21 facing the bottom of the tank. There are multiple rebound components 22. The rebound component 22 includes a fixed shell 221 fixed to the bottom of the tank and a guide rod 222 movably embedded in the fixed shell 221.

[0028] The guide rod 222 is in the shape of a columnar structure, and one end of the guide rod 222 is fixedly connected to the side of the vibration plate 21 facing the bottom of the pool. The guide rod 222 is used to limit the movement direction of the vibration plate 21 to prevent it from deflecting. The guide rod 222 can be replaced by other guide structures to adapt to different installation environments and usage conditions; the other end of the guide rod 222 is fixed with a return spring 223, and the end of the return spring 223 away from the guide rod 222 is fixedly connected to the fixed shell 221. The return spring 223 plays a role of buffering and rebounding, and can quickly return to its original position after the vibration plate 21 is impacted. The return spring 223 can be replaced by an air bag or other elastic element, and different materials and specifications can be selected according to actual needs. The vibration plate 21 can achieve up and down movable vibration by pressing the return spring 223 with the guide rod 222, so that the sludge on the vibration plate 21 can be vibrated from the higher side to the lower side.

[0029] The separation mechanism 3 includes a rotating shaft 31 perpendicular to the bottom of the pool. The rotating shaft 31 is located on the lower side of the vibration plate 21. A servo motor 32 is provided at the top of the rotating shaft 31 to drive the rotating shaft 31 to rotate. The servo motor 32 is installed at the top of the wastewater pool 1; the bottom of the rotating shaft 31 is provided with a trigger member 33 abutting against the vibration plate 21. The trigger member 33 periodically abuts the lower end of the vibration plate 21 as the rotating shaft 31 rotates. When the servo motor 32 drives the rotating shaft 31 to rotate, the intermittent contact between the trigger member 33 and the vibration plate 21 generates high-frequency vibration, which causes the sludge on the bottom of the pool to slide toward the lower side of the vibration plate 21.

[0030] The number of trigger members 33 is set to two here. The number of trigger members 33 can be adjusted according to actual needs, and the trigger members 33 are distributed along the circumferential direction of the rotating shaft 31. When the rotating shaft 31 rotates one circle, multiple trigger members 33 contact the vibration plate 21 in turn and drive it to vibrate. Compared with a single trigger member 33, the vibration frequency of the vibration plate 21 is increased, thereby enhancing the loosening effect on the sludge and promoting the sludge to slide from the higher side of the vibration plate 21 to the lower side more efficiently.

[0031] As attached Figure 3 and attached Figure 4As shown, spirally distributed spiral blades 34 are fixed on the circumferential side walls of the rotating shaft 31. The spiral blades 34 are fixed to the outer circumferential side walls of the rotating shaft 31 at a spiral angle. The top of the spiral blades 34 extends to the mud discharge mechanism 4 area above the pool body. The spiral blades 34 include two spiral skeletons 341 and a filter screen 342. One rotating skeleton 341 is installed on the rotating shaft 31, and the other rotating skeleton 341 connects the two through the filter screen 342. The surface of the filter screen 342 is provided with small dense holes, which is convenient for conveying sludge and can also filter the wastewater in the sludge. A support skeleton 343 is also installed between the two rotating skeletons 341. There are multiple support skeletons 343, which are respectively installed on the lower surface of the filter screen 342, which can provide certain support for the filter screen 342 and improve the stability of the filter screen 342 in conveying sludge.

[0032] An anti-fall cylinder 35 is fixed on the side of the servo motor 32 facing the wastewater pool 1. The anti-fall cylinder 35 is in the shape of a cylinder with a hollow interior. When the spiral blade 34 rotates along the axial direction of the rotating shaft 31, the inner side wall of the anti-fall cylinder 35 is aligned with the outer side wall of the spiral blade 34. The inner wall of the anti-fall cylinder 35 and the outer wall of the spiral blade 34 always remain in contact with each other, forming a sealed space to prevent sludge from splashing or falling.

[0033] As attached Figure 4 and attached Figure 5 As shown, a limit block 344 is fixed on the side wall of the spiral skeleton 341 near the side of the spiral rotating shaft 31. There are multiple limit blocks 344, and a plurality of limit grooves 311 for the limit blocks 344 to be embedded in the outer peripheral side wall of the rotating shaft 31 are provided to ensure that the limit blocks 344 can be smoothly embedded and maintain a stable connection. The axial spacing of the limit grooves 311 on the rotating shaft 31 is greater than the axial length of the limit blocks 344 on the rotating shaft 31, so that the spiral blade 34 can descend axially when the trigger member 33 abuts against the vibration plate 21. After the trigger member 33 rotates with the rotating shaft 31, the trigger member 33 no longer abuts against the vibration plate 21, and the spiral blade 34 rises under the support of the vibration plate 21. The vibration generated by this reciprocating motion can enhance the separation effect between sludge and wastewater.

[0034] As attached Figure 6 As shown, the sludge discharge mechanism 4 includes an obliquely installed guide plate 41 and a sludge tank 42. The higher end of the guide plate 41 is located below the outlet of the spiral blade 34, and the lower end is located above the sludge tank 42. The guide plate 41 is used to transport the sludge at the outlet of the spiral blade 34 to the sludge tank 42.

[0035] The sludge discharge mechanism 4 also includes a drive motor 43 and a scraper 44. The drive motor 43 is installed and fixed on one side of the guide plate 41. A plurality of scrapers 44 are fixed on the outer peripheral side wall of the output shaft of the drive motor 43. The cutting edge of the scraper 44 forms a line contact with the surface of the guide plate 41. When the spiral blade 34 lifts the sludge to the guide plate 41, the drive motor 43 drives the scraper 44 to move in a circular motion to continuously scrape off the residual sludge on the plate surface.

[0036] As attached Figure 1 As shown, the number of vibration mechanisms 2, separation mechanisms 3 and mud discharge mechanisms 4 is equal, and several of them are provided. The multiple vibration mechanisms 2, separation mechanisms 3 and mud discharge mechanisms 4 are distributed in a matrix manner, which can realize the simultaneous cleaning of multiple areas in the wastewater pool 1. The multiple vibration mechanisms 2 act on different areas respectively to loosen the sludge and guide it to the corresponding separation mechanism 3 position. The rotating shaft 31 drives the spiral blade 34 to rotate, effectively completing the separation operation of sludge and wastewater. The separated sludge is discharged from the wastewater pool 1 in an orderly manner through its respective mud discharge mechanisms 4, which is suitable for the cleaning needs of large-scale wastewater pools 1, significantly improves the cleaning efficiency, and ensures the continuity and efficiency of the cleaning process.

[0037] How it works Electroplating wastewater, oxidant and chelating agent are added to the wastewater pool 1 in sequence. The oxidant is used to break the complex in the electroplating wastewater, and the chelating agent forms a chelate precipitate with the metal ions, and finally forms a sludge precipitate at the bottom of the wastewater pool 1.

[0038] When the trigger member 33 rotates with the rotating shaft 31, it periodically abuts the lower end of the vibration plate 21, generating high-frequency vibration, further promoting the sludge to slide from the higher side of the vibration plate 21 to the lower side. A spiral blade 34 is fixed on the circumferential side wall of the rotating shaft 31, and the spiral blade 34 is rotated and raised to achieve efficient separation and transportation of the sludge, and the sludge and wastewater are separated while the sludge is transported through the filter screen 342; the design of the limit block 344 and the limit groove 311 ensures that the spiral blade 34 descends axially when the trigger member 33 abuts the vibration plate 21, and rises after the trigger member 33 is detached, thereby enhancing the separation effect between the sludge and the wastewater.

[0039] Through the coordinated action of the vibration mechanism 2, the separation mechanism 3 and the sludge discharge mechanism 4, the device can efficiently and continuously clean the sludge in the wastewater pool 1. The cleaning can be completed without emptying the wastewater pool 1, which significantly reduces water waste and improves cleaning efficiency. It is suitable for the treatment needs of large-scale wastewater pools 1.

[0040] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of protection required by this application, they are protected by patent law.

Claims

1. A zinc-nickel alloy electroplating wastewater treatment device, comprising a wastewater pool (1), characterized in that: It also includes a vibration mechanism (2) and a separation mechanism (3), wherein the vibration mechanism (2) includes an inclined vibration plate (21), and a rebound component (22) is installed between the vibration plate (21) and the bottom of the wastewater pool (1) to connect the two. The separation mechanism (3) comprises a rotating shaft (31) perpendicular to the pool bottom, the rotating shaft (31) being located on the lower side of the vibration plate (21), a triggering member (33) abutting against the vibration plate (21) being provided at the bottom end of the rotating shaft (31), a servo motor (32) for driving the rotating shaft (31) to rotate being provided at the top end of the rotating shaft (31), spirally distributed spiral blades (34) being fixed on the circumferential side wall of the rotating shaft (31), the spiral blades (34) comprising two spiral skeletons (341), a filter screen (342) being installed between the two spiral skeletons (341), and a mud discharge mechanism (4) being provided at the top end of the spiral blades (34).

2. A zinc-nickel alloy electroplating wastewater treatment device according to claim 1, characterized in that: A plurality of support frames (343) are further installed between the two spiral frames (341), and the support frames (343) are located on the lower surface of the filter screen (342).

3. The zinc-nickel alloy electroplating wastewater treatment device according to claim 1, characterized in that: A limiting block (344) is fixed on the circumferential side wall of the spiral blade (34) facing the rotating shaft (31), and a limiting groove (311) for the limiting block (344) to be embedded is opened on the outer circumferential side wall of the rotating shaft (31), and the spacing between the limiting grooves (311) in the axial direction of the rotating shaft (31) is greater than the length of the limiting block (344) in the axial direction of the rotating shaft (31), and when the trigger member (33) is not in contact with the vibration plate (21), the bottom end of the spiral blade (34) is in contact with the vibration plate (21).

4. The zinc-nickel alloy electroplating wastewater treatment device according to claim 1, characterized in that: There are multiple rebound components (22).

5. The zinc-nickel alloy electroplating wastewater treatment device according to claim 1, characterized in that: The rebound assembly (22) comprises a fixed shell (221) fixed to the bottom of the pool and a guide rod (222) sliding in the fixed shell (221); one end of the guide rod (222) is fixedly connected to the vibration plate (21) in a vertical direction, and a return spring (223) is connected between the other end of the guide rod (222) and the fixed shell (221).

6. The zinc-nickel alloy electroplating wastewater treatment device according to claim 1, characterized in that: A plurality of triggering members (33) are provided, and the triggering members (33) are distributed along the circumferential direction of the rotating shaft (31).

7. The zinc-nickel alloy electroplating wastewater treatment device according to claim 1, characterized in that: An anti-drop cylinder (35) is fixed on the side of the servo motor (32) facing the wastewater tank (1), and when the spiral blade (34) rotates along the axial direction of the rotating shaft (31), the outer peripheral side wall of the spiral blade (34) is aligned with the inner peripheral side wall of the anti-drop cylinder (35).

8. The zinc-nickel alloy electroplating wastewater treatment device according to claim 1, characterized in that: The mud discharge mechanism (4) comprises a guide plate (41) fixed to the top of the wastewater tank (1), one end of the guide plate (41) is located below the top outlet of the spiral blade (34), and the other end of the guide plate (41) is connected to a mud tank. A driving motor (43) is also provided above the guide plate (41), and a scraper (44) is fixed on the circumferential side wall of the output shaft of the driving motor (43), and the scraper (44) abuts against the upper surface of the guide plate (41).

9. The zinc-nickel alloy electroplating wastewater treatment device according to claim 1, characterized in that: The number of the vibration mechanism (2), separation mechanism (3) and mud discharge mechanism (4) is equal, and a plurality of each is provided.

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