Wastewater treatment equipment for purifying nickel-containing wastewater

Abstract

This invention relates to the field of wastewater purification technology and discloses a wastewater treatment device for purifying nickel-containing wastewater. The device includes a mixing assembly with a support frame fixedly installed at its bottom. A motor is fixedly installed on one side of the outer surface of the mixing assembly. Three mounting seats are evenly distributed in a circular pattern on the surface of the mounting plate, providing stable mounting space for the internal drive components. Each mounting seat contains a protective shell, which encapsulates the drive motor, providing waterproof and chemical corrosion protection. After the drive motor starts, it drives the top rotating rod to rotate at high speed. The rotating rod then drives the outer surface's actuating plate to rotate synchronously. The rotating actuating plate continuously disperses and cuts the falling chemicals, breaking up any agglomerated or clump-like particles. Simultaneously, the elastic band inside the actuating plate, made of elastic material, generates high-frequency elastic vibration under the centrifugal force and impact of the chemicals, further breaking up the chemicals and preventing adhesion and blockage.

Description

Technical Field

[0001] This invention relates to the field of wastewater purification technology, specifically to a wastewater treatment device for purifying nickel-containing wastewater. Background Technology

[0002] Large quantities of nickel-containing wastewater are often generated during industrial production processes such as electroplating, metallurgy, and chemical processing. Nickel is a heavy metal pollutant characterized by high toxicity, easy accumulation, and difficulty in degradation. If discharged directly without effective treatment, it will cause serious harm to the aquatic environment, soil ecology, and human health. Therefore, the purification and treatment of nickel-containing wastewater has always been a key research direction in the field of industrial environmental protection.

[0003] Currently, the treatment of nickel-containing wastewater mostly adopts chemical precipitation method. By adding heavy metal precipitating agents, flocculants and other agents, nickel ions are formed into insoluble flocs and separated by precipitation, so as to achieve the purpose of wastewater purification.

[0004] However, existing wastewater treatment equipment suffers from unreasonable reagent dosing methods, leading to problems such as clumping, clogging, and uneven dosing. Traditional dosing devices are prone to reagent agglomeration due to moisture, making it difficult to disperse quickly after being directly added to wastewater. This often results in localized excessively high reagent concentrations while other areas show insufficient reaction, causing not only reagent waste but also incomplete nickel ion removal and difficulty in consistently meeting effluent quality standards. Furthermore, traditional sedimentation tanks lack effective flow buffering and floc guiding structures. The impact of the influent flow easily causes settled sludge to rise, resulting in secondary turbidity. Simultaneously, flocs tend to adhere to the tank walls and disperse, making centralized collection and cleaning difficult. This results in low sedimentation efficiency, a large footprint, and an inability to meet the needs of continuous industrial treatment. Summary of the Invention

[0005] The purpose of this invention is to provide a wastewater treatment device for purifying nickel-containing wastewater, in order to solve the problems mentioned in the background art, such as unreasonable dosing methods of existing wastewater treatment devices, which are prone to clumping, blockage and uneven dosing. Traditional dosing devices are prone to moisture and agglomeration of reagents, which are difficult to disperse quickly after falling directly into the wastewater. This often results in localized excessively high reagent concentrations while other areas do not react sufficiently, which not only wastes reagents but also leads to incomplete removal of nickel ions and difficulty in consistently meeting the standards for effluent quality.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wastewater treatment device for purifying nickel-containing wastewater, comprising: a mixing assembly, wherein a support frame is fixedly installed at the bottom of the mixing assembly, a motor is fixedly installed on one side of the outer surface of the mixing assembly, and the mixing assembly is connected to a wastewater discharge outlet; A dosing assembly, which is fixedly installed on top of a mixing assembly and is connected to the cavity of the mixing assembly; A sedimentation component is placed on the side of the mixing component away from the motor, and the sedimentation component is positioned below the mixing component. The dosing assembly includes a storage tank, a treatment chamber fixedly installed at the bottom of the storage tank, a funnel fixedly installed at the bottom of the treatment chamber, a dispersing component fixedly installed at the bottom of the funnel, and a dosing pipe fixedly installed at the bottom of the dispersing component. Workers pre-fill the storage tank with the reagent used to treat nickel-containing wastewater. The storage tank is a sealed, pressure-bearing structure. Under its own gravity, the reagent flows steadily downwards into the treatment chamber connected at the bottom, completing the centralized storage and initial feeding of the reagent. After entering the treatment chamber, the chamber acts as a buffer to prevent the reagent from falling in large quantities suddenly, causing impact and flow fluctuations. The bottom of the treatment chamber is connected to the funnel, which has a conical structure that is wider at the top and narrower at the bottom. This funnel guides the dispersed reagent towards the center, ensuring that the reagent is concentrated and directionally delivered to the dispersing component below, preventing overflow or deviation.

[0007] Furthermore, the dispersing component includes a mounting plate, inside which is a mounting seat. A protective shell is fixedly mounted inside the mounting seat, and a drive motor is installed inside the protective shell. A rotating rod is rotatably mounted on the top of the protective shell via the drive motor. A lever is fixedly mounted on the outer surface of the rotating rod, and a spring band is fixedly mounted inside the lever. Three mounting seats are evenly distributed circumferentially on the surface of the mounting plate, providing a stable mounting space for the internal drive components. Each mounting seat has a fixed protective shell, and the drive motor is encapsulated inside the protective shell, providing waterproof and chemical corrosion protection for the drive motor. After the drive motor starts, it drives the top rotating rod to rotate at high speed. The rotating rod then drives the lever on the outer surface to rotate synchronously. The rotating lever continuously disperses and cuts the falling chemical, breaking up any agglomerated or clump-like particles. Simultaneously, the spring band inside the lever is made of elastic material, generating high-frequency elastic vibration under the centrifugal force of rotation and the impact of the chemical, further breaking up the chemical particles and preventing chemical adhesion and blockage.

[0008] Furthermore, three mounting seats are provided, arranged in a circumferential pattern on the surface of the mounting plate, and the elastic band is made of elastic material. The fully dispersed and agitated agent enters the dosing pipe from the bottom of the dispersing component. The dosing pipe is fixedly installed on the top of the mixing assembly and extends through its interior, stably and continuously adding the uniformly dispersed agent to the mixing chamber of the mixing assembly, ensuring full contact and reaction with the nickel-containing wastewater, thus completing the entire dosing process.

[0009] Furthermore, the mixing assembly includes a stirring chamber with a water inlet at the top. A rotating shaft is rotatably mounted inside the stirring chamber, and a helical rod is fixedly mounted on the surface of the shaft. A drain outlet is located on the lower side of the stirring chamber away from the water inlet. The nickel-containing wastewater to be treated continuously flows into the stirring chamber from the external wastewater discharge outlet through the water inlet connected to the stirring chamber, providing a treatment target for the subsequent mixing reaction. The reagent treated by the upper dosing assembly passes through the dosing pipe through the top of the stirring chamber and directly enters the chamber, where it initially merges with the wastewater.

[0010] Furthermore, the rotating shaft is fixedly connected to the output end of the motor, the water inlet is connected to the wastewater discharge outlet, and the drain outlet is located above the sedimentation assembly. When the external motor starts, its output end drives the rotating shaft fixedly connected to it to rotate. The rotating shaft further drives the surface-fixed screw rod to rotate synchronously. During rotation, the screw rod radially shears and agitates the wastewater and reagents, causing them to mix rapidly. Simultaneously, it exerts an axial pushing force on the liquid, propelling the wastewater and reagent mixture slowly from the water inlet side to the drain outlet side, extending the mixing reaction path and reaction time, ensuring sufficient contact and flocculation of nickel ions and reagents. After thorough stirring and reaction, the flocculent mixture, pushed by the screw rod and its own gravity, is discharged from the drain outlet below the side of the mixing chamber away from the water inlet, falling directly into the sedimentation assembly below, completing the entire mixing process.

[0011] Furthermore, the sedimentation assembly includes a sedimentation tank, with a lifting frame fixedly installed at the bottom of the sedimentation tank, and a limit plate fixedly installed on the surface of the lifting frame. The nickel-containing flocculent mixed wastewater, after being fully reacted by the mixing assembly, falls downwards into the sedimentation tank from the drain outlet. The wastewater first contacts the protruding blocks on both sides of the inner wall of the storage tank. These protruding blocks obstruct and turbulent the falling water flow, rapidly slowing and buffering the high-speed flow, preventing the water from directly impacting the bottom of the tank and causing flocculent breakage and sludge uplift, thus ensuring stable sedimentation conditions. The slowed wastewater flows slowly within the sedimentation tank, and the nickel-containing flocculents in the water begin to settle naturally under gravity.

[0012] Furthermore, the sedimentation tank is located below the drain outlet, and the limiting plate is fixedly installed on both sides of the sedimentation tank. The inclined wall inside the tank guides the sinking flocs, causing them to gradually converge towards the center or bottom of the tank along the inclined surface, preventing the flocs from being dispersed and attached to the side walls and difficult to collect, while increasing the effective sedimentation area and accelerating the settling speed.

[0013] Furthermore, the sedimentation tank includes a water storage tank, the inner wall of which is provided with protruding blocks, and inclined walls are provided between the protruding blocks. The flocs continuously settle to the bottom of the water storage tank to form a concentrated sludge layer, while the upper layer becomes clarified and compliant wastewater, completing solid-liquid separation. The water storage tank temporarily stores the clarified water to ensure stable effluent quality, facilitating subsequent unified discharge or reuse.

[0014] Furthermore, the water storage tank is fixedly installed on the top of the raised frame, and the protruding blocks are located on both sides of the inner wall of the water storage tank.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: (i) In the wastewater treatment equipment for purifying nickel-containing wastewater, after the reagent enters the treatment chamber, the chamber acts as a buffer to prevent the reagent from falling in large quantities at once and causing impact and flow fluctuation. The bottom of the treatment chamber is connected to a funnel, which has a cone-shaped structure that is wider at the top and narrower at the bottom. This funnel guides the dispersed reagent towards the center, so that the reagent is concentrated and directed to the dispersion component below, preventing the reagent from overflowing or flowing out of control.

[0016] (II) This wastewater treatment equipment for purifying nickel-containing wastewater has three mounting seats evenly distributed in a circular pattern on the surface of the mounting plate, providing a stable installation space for the internal drive components. Each mounting seat has a fixed protective shell, which encapsulates the drive motor, providing waterproof and chemical corrosion protection. After the drive motor starts, it drives the top rotating rod to rotate at high speed. The rotating rod then drives the outer surface of the deflector plate to rotate synchronously. The rotating deflector plate continuously disperses and cuts the falling chemical, breaking up any agglomerated or clump-like chemical particles. At the same time, the elastic band inside the deflector plate is made of elastic material, which generates high-frequency elastic vibration under the centrifugal force of rotation and the impact of the chemical, further breaking up the chemical particles and preventing chemical adhesion and blockage.

[0017] (III) The wastewater treatment equipment used for purifying nickel-containing wastewater starts with an external motor. Its output end drives the rotating shaft fixedly connected to it to rotate. The rotating shaft further drives the screw rod fixed on the surface to rotate synchronously. During the rotation, the screw rod performs radial shearing and stirring on the wastewater and the reagent, so that the two are quickly mixed. On the other hand, it forms an axial pushing force on the liquid, pushing the mixture of wastewater and reagent to move slowly from the water inlet side to the water outlet side, extending the mixing reaction path and reaction time, and ensuring that nickel ions and reagents are fully contacted and flocculated.

[0018] (iv) In the wastewater treatment equipment for purifying nickel-containing wastewater, the nickel-containing flocculent mixed wastewater, after being fully reacted by the mixing components, falls into the sedimentation tank from the drain outlet. The wastewater first comes into contact with the protruding blocks on both sides of the inner wall of the storage tank. The protruding blocks block the falling water flow and create turbulence, so that the high-speed water flow is quickly slowed down and buffered, avoiding the water flow from rushing directly to the bottom of the tank and causing the flocculents to break and the sludge to rise. This ensures stable sedimentation conditions. The slowed-down wastewater flows slowly in the sedimentation tank, and the nickel-containing flocculents in the water begin to settle naturally under the action of gravity.

[0019] (v) The wastewater treatment equipment used for purifying nickel-containing wastewater features inclined walls within the tank that guide the settling flocs, causing them to gradually converge towards the center or bottom of the tank. This prevents the flocs from dispersing and adhering to the side walls, making them difficult to collect, while simultaneously increasing the effective sedimentation area and accelerating the settling speed. The flocs continue to settle to the bottom of the storage tank, forming a concentrated sludge layer, while the upper layer becomes clarified and compliant wastewater, thus completing solid-liquid separation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the precipitation component structure of the present invention; Figure 3 This is a schematic diagram of the sedimentation tank structure of the present invention; Figure 4 This is a schematic diagram of the structure of the drug mixing component of the present invention; Figure 5 This is a schematic diagram of the internal structure of the drug mixing component of the present invention in cross-section; Figure 6 This is a schematic diagram of the cross-sectional structure of the drug delivery component of the present invention; Figure 7 This is a disassembled schematic diagram of the drug delivery component structure of the present invention; Figure 8 This is a schematic diagram of the structure of the dispersion component of the present invention; Figure 9 This is a disassembly diagram of the structure of the dispersed components of the present invention.

[0021] In the diagram: 1. Support frame; 2. Sedimentation assembly; 21. Elevating frame; 22. Sedimentation tank; 221. Inclined wall; 222. Protruding block; 223. Water storage tank; 23. Limiting plate; 3. Dosing assembly; 31. Storage tank; 32. Processing chamber; 33. Dosing pipe; 34. Funnel; 35. Dispersing component; 351. Mounting base; 352. Rotating rod; 353. Spring belt; 354. Mounting plate; 355. Paddle plate; 356. Protective shell; 4. Mixing assembly; 41. Water inlet; 42. Mixing chamber; 43. Drain outlet; 44. Screw rod; 45. Rotating shaft; 5. Motor. Detailed Implementation

[0022] Example 1, as Figures 1 to 9 As shown, the present invention provides a technical solution: a wastewater treatment device for purifying nickel-containing wastewater, comprising: a mixing component 4, a support frame 1 fixedly installed at the bottom of the mixing component 4, a motor 5 fixedly installed on one side of the outer surface of the mixing component 4, and the mixing component 4 being connected to a wastewater discharge outlet. The dosing component 3 is fixedly installed on the top of the mixing component 4, and the dosing component 3 is connected to the cavity of the mixing component 4; The sedimentation component 2 is placed on the side of the mixing component 4 away from the motor 5, and is located below the mixing component 4. The dosing assembly 3 includes a storage tank 31, a processing chamber 32 fixedly installed at the bottom of the storage tank 31, a funnel 34 fixedly installed at the bottom of the processing chamber 32, a dispersing component 35 fixedly installed at the bottom of the funnel 34, and a dosing pipe 33 fixedly installed at the bottom of the dispersing component 35. Workers pre-fill the storage tank 31 with the reagents used to treat nickel-containing wastewater. The storage tank 31 is a sealed, pressure-bearing structure. Under its own gravity, the reagents flow steadily downwards into the processing chamber 32, completing the centralized storage and initial feeding of the reagents. After entering the processing chamber 32, the chamber acts as a buffer to prevent the reagents from falling in large quantities instantly, causing impact and flow fluctuations. The bottom of the processing chamber 32 is connected to the funnel 34, which has a conical structure that is wider at the top and narrower at the bottom. This funnel guides the dispersed reagents towards the center, ensuring that the reagents are concentrated and directionally delivered to the dispersing component 35 below, preventing overflow and deviation.

[0023] The dispersing component 35 includes a mounting plate 354, inside which is a mounting seat 351. A protective shell 356 is fixedly mounted inside the mounting seat 351. A drive motor is installed inside the protective shell 356. A rotating rod 352 is rotatably mounted on the top of the protective shell 356 via the drive motor. A lever 355 is fixedly mounted on the outer surface of the lever 352. A spring band 353 is fixedly mounted inside the lever 355. Three mounting seats 351 are evenly distributed in a circumferential shape on the surface of the mounting plate 354, providing a stable mounting space for the internal drive components. The protective shell 356 is fixed inside each mounting seat 351. The protective shell 356 encapsulates the drive motor, providing waterproof and chemical corrosion protection for the drive motor. After the drive motor starts, it drives the top rotating rod 352 to rotate at high speed. The rotating rod 352 then drives the outer surface of the deflector plate 355 to rotate synchronously. The rotating deflector plate 355 continuously disperses and cuts the falling medicine, breaking up the agglomerated and clumped medicine. At the same time, the elastic band 353 inside the deflector plate 355 is made of elastic material. Under the action of rotational centrifugal force and medicine impact, it generates high-frequency elastic vibration, further breaking up medicine particles and preventing medicine from sticking together and clogging.

[0024] Three mounting bases 351 are provided, and the three mounting bases 351 are distributed in a circumferential shape on the surface of the mounting plate 354. The elastic band 353 is made of elastic material. The fully dispersed and dispersed agent enters the dosing tube 33 from the bottom of the dispersing component 35. The dosing tube 33 is fixedly installed on the top of the mixing component 4 and extends through its interior, stably and continuously adding the uniformly dispersed agent into the stirring chamber 42 of the mixing component 4, so as to fully contact and react with the nickel-containing wastewater, thus completing the entire dosing process.

[0025] Example 2, based on Example 1, such as Figures 4 to 5 As shown, the mixing assembly 4 includes a stirring chamber 42, with a water inlet 41 at the top. A rotating shaft 45 is rotatably mounted inside the stirring chamber 42, and a spiral rod 44 is fixedly mounted on the surface of the rotating shaft 45. A drain outlet 43 is located on the lower side of the stirring chamber 42 away from the water inlet 41. The nickel-containing wastewater to be treated continuously flows into the stirring chamber 42 from the external wastewater discharge outlet through the water inlet 41, which is connected to the stirring chamber 42, providing a treatment target for the subsequent mixing reaction. The reagent treated by the upper dosing assembly 3 passes through the dosing pipe 33 through the top of the stirring chamber 42 and directly enters the chamber, where it initially merges with the wastewater within the stirring chamber 42.

[0026] The rotating shaft 45 is fixedly connected to the output end of the motor 5, the water inlet 41 is connected to the wastewater discharge outlet, and the drain outlet 43 is located above the sedimentation assembly 2. When the outer motor 5 is started, its output end drives the rotating shaft 45, which is fixedly connected to it, to rotate. The rotating shaft 45 further drives the screw rod 44, which is fixed on the surface, to rotate synchronously. During the rotation, the screw rod 44 performs radial shearing and stirring on the wastewater and the reagent, so that the two are quickly mixed. On the other hand, it forms an axial pushing force on the liquid, pushing the mixture of wastewater and reagent from the side of the water inlet 41 to the side of the drain outlet 43, extending the mixing reaction path and reaction time, and ensuring that nickel ions and reagents are fully contacted and flocculated. After sufficient stirring and reaction, the flocculent mixture is discharged from the drain outlet 43 below the side of the stirring chamber 42 away from the water inlet 41 under the pushing of the screw rod 44 and its own gravity, and falls directly into the sedimentation assembly 2 below, completing the entire mixing process.

[0027] Example 3, based on Examples 1 and 2, such as Figures 2 to 3 As shown, the sedimentation assembly 2 includes a sedimentation tank 22, and a lifting frame 21 is fixedly installed at the bottom of the sedimentation tank 22. A limit plate 23 is fixedly installed on the surface of the lifting frame 21. The nickel-containing flocculent mixed wastewater, after being fully reacted by the mixing assembly 4, falls into the sedimentation tank 22 from the drain outlet 43. The wastewater first comes into contact with the protrusions 222 on both sides of the inner wall of the storage tank 223. The protrusions 222 block and turbulence the falling water flow, which quickly slows down and buffers the high-speed water flow, preventing the water flow from rushing directly to the bottom of the tank and causing the flocculents to break and the sludge to rise. This ensures stable sedimentation conditions. The slowed-down wastewater flows slowly in the sedimentation tank 22, and the nickel-containing flocculents in the water begin to settle naturally under the action of gravity.

[0028] The sedimentation tank 22 is located below the drain outlet 43, and the limiting plate 23 is fixedly installed on both sides of the sedimentation tank 22. The inclined wall 221 inside the tank guides the sinking flocs, causing the flocs to gradually converge towards the center or bottom of the tank along the inclined surface, preventing the flocs from being dispersed and attached to the side wall and difficult to collect, while increasing the effective sedimentation area and accelerating the sedimentation speed.

[0029] The sedimentation tank 22 includes a water storage tank 223. The inner wall of the water storage tank 223 is provided with protruding blocks 222, and inclined walls 221 are provided between the protruding blocks 222. The flocs continuously settle to the bottom of the water storage tank 223 to form a concentrated sludge layer, while the upper layer becomes clarified and compliant wastewater, completing solid-liquid separation. The water storage tank 223 temporarily stores the clarified water to ensure stable effluent quality, facilitating subsequent unified discharge or reuse.

[0030] The water storage tank 223 is fixedly installed on the top of the lifting frame 21, and the protrusions 222 are arranged on both sides of the inner wall of the water storage tank 223.

[0031] During use, staff pre-fill the heavy metal catching agent, flocculant, and other reagents used to treat nickel-containing wastewater into the storage tank 31. The storage tank 31 is a sealed and pressure-bearing structure. Under its own gravity, the reagents flow steadily downwards into the treatment chamber 32 connected at the bottom, completing the centralized storage and initial feeding of the reagents.

[0032] After the agent enters the processing chamber 32, the chamber acts as a buffer to prevent the agent from falling in large quantities at once, which could cause impact and flow fluctuations. The bottom of the processing chamber 32 is connected to the funnel 34, which has a conical structure that is wider at the top and narrower at the bottom. This funnel 34 guides the dispersed agent towards the center, allowing the agent to be concentrated and directed to the dispersion component 35 below, preventing the agent from overflowing or flowing out of control.

[0033] The mounting plate 354 has three mounting seats 351 evenly distributed in a circumferential shape on its surface, providing a stable mounting space for the internal drive components. Each mounting seat 351 has a protective shell 356 fixed inside, which encapsulates the drive motor and provides waterproof and chemical corrosion protection. After the drive motor starts, it drives the top rotating rod 352 to rotate at high speed. The rotating rod 352 then drives the outer surface of the deflector plate 355 to rotate synchronously. The rotating deflector plate 355 continuously disperses and cuts the falling chemical, breaking up any agglomerated or clump-like chemical particles. At the same time, the elastic band 353 inside the deflector plate 355 is made of elastic material, which generates high-frequency elastic vibration under the centrifugal force of rotation and the impact of the chemical, further breaking up the chemical particles and preventing the chemical from sticking together and clogging.

[0034] After being fully dispersed and broken up, the agent enters the dosing pipe 33 from the bottom of the dispersing component 35. The dosing pipe 33 is fixedly installed on the top of the mixing component 4 and extends through its interior, so that the uniformly dispersed agent is stably and continuously added to the stirring chamber 42 of the mixing component 4, and fully contacts and reacts with the nickel-containing wastewater to complete the entire dosing process.

[0035] The nickel-containing wastewater to be treated flows continuously into the mixing chamber 42 from the external wastewater discharge port through the water inlet 41 connected to the mixing chamber 42, providing a treatment target for the subsequent mixing reaction. The reagent treated by the upper dosing component 3 passes through the dosing pipe 33 through the top of the mixing chamber 42 and directly enters the chamber, where it initially mixes with the wastewater. The external motor 5 starts, and its output drives the rotating shaft 45 fixed to it to rotate. The rotating shaft 45 further drives the surface-fixed spiral rod 44 to rotate synchronously. During the rotation, the spiral rod 44 performs radial shearing and stirring on the wastewater and reagent, so that the two are quickly mixed. On the other hand, it forms an axial pushing force on the liquid, pushing the mixture of wastewater and reagent to move slowly from the water inlet 41 side to the drain 43 side, extending the mixing reaction path and reaction time, and ensuring that nickel ions and reagents fully contact and flocculate.

[0036] After thorough stirring and reaction, the flocculent mixture is pushed by the screw rod 44 and under its own gravity, discharged from the drain outlet 43 on the side of the stirring chamber 42 away from the water inlet 41, and falls directly into the sedimentation component 2 below, completing the entire mixing process.

[0037] After being fully reacted by the mixing component 4, the nickel-containing flocculent mixed wastewater falls down into the sedimentation tank 22 from the drain outlet 43. The wastewater first comes into contact with the protrusions 222 on both sides of the inner wall of the storage tank 223. The protrusions 222 block and turbulence the falling water flow, which quickly slows down and buffers the high-speed water flow, preventing the water flow from rushing directly to the bottom of the tank and causing the flocculents to break up and the sludge to rise. This ensures stable sedimentation conditions. The slowed-down wastewater flows slowly in the sedimentation tank 22, and the nickel-containing flocculents in the water begin to settle naturally under the action of gravity.

[0038] The inclined wall 221 installed in the pool guides the sinking flocs, causing them to gradually converge towards the center or bottom of the pool along the inclined surface. This prevents the flocs from being scattered and attached to the side walls, making them difficult to collect. At the same time, it increases the effective sedimentation area and accelerates the settling speed.

[0039] The flocs continue to settle to the bottom of the storage tank 223 to form a concentrated sludge layer, while the upper layer becomes clarified and qualified wastewater, thus completing solid-liquid separation. The storage tank 223 temporarily stores the clarified water to ensure stable effluent quality and facilitate subsequent unified discharge or reuse.

Claims

1. A wastewater treatment device for purifying nickel-containing wastewater, characterized in that, include: The mixing component (4) has a support frame (1) fixedly installed at its bottom and a motor (5) fixedly installed on one side of its outer surface. The mixing component (4) is connected to the wastewater discharge outlet. The dosing component (3) is fixedly installed on the top of the mixing component (4), and the dosing component (3) is connected to the cavity of the mixing component (4); A sedimentation component (2) is placed on the side of the mixing component (4) away from the motor (5) and is located below the mixing component (4); The dosing assembly (3) includes a storage tank (31), a processing chamber (32) is fixedly installed at the bottom of the storage tank (31), a funnel (34) is fixedly installed at the bottom of the processing chamber (32), a dispersing component (35) is fixedly installed at the bottom of the funnel (34), and a dosing tube (33) is fixedly installed at the bottom of the dispersing component (35).

2. The wastewater treatment equipment for purifying nickel-containing wastewater according to claim 1, characterized in that: The dosing tube (33) is fixedly installed on the top of the mixing assembly (4), and the dosing tube (33) extends through the mixing assembly (4) into its interior.

3. The wastewater treatment equipment for purifying nickel-containing wastewater according to claim 2, characterized in that: The dispersing component (35) includes a mounting plate (354), an installation seat (351) is provided inside the mounting plate (354), a protective shell (356) is fixedly installed inside the installation seat (351), a drive motor is installed inside the protective shell (356), a rotating rod (352) is rotatably installed on the top of the protective shell (356) by the drive motor, a lever (355) is fixedly installed on the outer surface of the lever (352), and a spring belt (353) is fixedly installed inside the lever (355).

4. The wastewater treatment equipment for purifying nickel-containing wastewater according to claim 3, characterized in that: There are three mounting bases (351), which are distributed in a circumferential shape on the surface of the mounting plate (354), and the elastic band (353) is made of elastic material.

5. A wastewater treatment device for purifying nickel-containing wastewater according to claim 1, characterized in that: The mixing assembly (4) includes a mixing chamber (42), a water inlet (41) is provided at the top of the mixing chamber (42), a rotating shaft (45) is rotatably installed inside the mixing chamber (42), a spiral rod (44) is fixedly installed on the surface of the rotating shaft (45), and a drain outlet (43) is provided below the side of the mixing chamber (42) away from the water inlet (41).

6. The wastewater treatment equipment for purifying nickel-containing wastewater according to claim 5, characterized in that: The rotating shaft (45) is fixedly connected to the output end of the motor (5), the water inlet (41) is connected to the wastewater discharge outlet, and the drain outlet (43) is located above the sedimentation component (2).

7. A wastewater treatment device for purifying nickel-containing wastewater according to claim 1, characterized in that: The sedimentation assembly (2) includes a sedimentation tank (22), a lifting frame (21) is fixedly installed at the bottom of the sedimentation tank (22), and a limit plate (23) is fixedly installed on the surface of the lifting frame (21).

8. A wastewater treatment device for purifying nickel-containing wastewater according to claim 7, characterized in that: The sedimentation tank (22) is located below the drain outlet (43), and the limiting plate (23) is fixedly installed on both sides of the sedimentation tank (22).

9. A wastewater treatment device for purifying nickel-containing wastewater according to claim 8, characterized in that: The sedimentation tank (22) includes a water storage tank (223), the inner wall of which is provided with protrusions (222), and inclined walls (221) are provided between the protrusions (222).

10. A wastewater treatment device for purifying nickel-containing wastewater according to claim 9, characterized in that: The water storage tank (223) is fixedly installed on the top of the lifting frame (21), and the protrusions (222) are arranged on both sides of the inner wall of the water storage tank (223).

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