A nickel-containing wastewater evaporation concentrate solidification treatment device and treatment process

Abstract

The present application relates to the technical field of wastewater solidification devices. Aiming at the problem that it is inconvenient to clean the solidified materials in the traditional solidified tank body, a nickel-containing wastewater evaporation concentrate solidification treatment device is proposed, which includes a frame, a solidified tank body and a collection box; the solidified tank body is supported on the frame and the solidified tank body is located above the collection box; the top of the solidified tank body is connected with a liquid inlet pipe and a dosing pipe; the bottom opening of the solidified tank body is arranged to form a discharge port, and the frame is also provided with a sealing bottom plate for blocking the discharge port; the frame is located on one side of the collection box; the frame is provided with a lifting drive and a flipping drive, the lifting drive is connected to the solidified tank body for driving the solidified tank body to lift and lower vertically; the flipping drive is connected to the sealing bottom plate for driving the sealing bottom plate to flip. The present application has the effect of facilitating the cleaning of the solidified materials in the solidified tank body.

Description

Technical Field

[0001] The present application relates to the field of wastewater solidification devices, and in particular to a nickel-containing wastewater evaporation concentrate solidification treatment device and treatment process. Background Art

[0002] Production lines such as electroplating nickel or chemical nickel plating will generate a large amount of nickel-containing wastewater during the production process. Nickel-containing wastewater is rich in nickel ions. If it is discharged directly without treatment, it will not only easily pollute the environment, but also cause harm to humans and other animals and plants. Therefore, the nickel-containing wastewater needs to be treated to remove the nickel ions contained in the wastewater before it can be discharged normally.

[0003] At present, nickel-containing wastewater is usually treated by a membrane concentration combined with evaporation process. During treatment, the nickel-containing wastewater is first pre-treated by coagulation and filtration to remove a large amount of suspended matter and precipitable matter in the wastewater, and then the wastewater is treated by reverse osmosis membrane concentration. The resulting clean water is reused in the production line, and the concentrated water is further concentrated by an evaporator. After the concentrated water is evaporated and concentrated, a high-concentration nickel-containing concentrate will be formed. For this part of the nickel-containing concentrate, it will be passed into the solidification tank and an appropriate amount of solidification agent will be added to the solidification tank. After the solidification agent reacts with the solidification container, a solidified material is formed for subsequent transportation and disposal.

[0004] With regard to the above-mentioned related technologies, the solidified material formed after the nickel-containing concentrated liquid in the solidification tank is solidified by the solidification agent is located at the bottom of the solidification tank. It is usually necessary to manually use tools to clean it out of the solidification container, which is inconvenient to operate and has low cleaning efficiency. Therefore, there is room for improvement. Summary of the invention

[0005] In order to facilitate the cleaning of the solidified materials generated inside the solidification tank, the present application provides a nickel-containing wastewater evaporation concentrate solidification treatment device and treatment process.

[0006] The present application provides a nickel-containing wastewater evaporation concentrate solidification treatment device and treatment process, which adopts the following technical solutions:

[0007] A device for solidifying and treating concentrated evaporation liquid of nickel-containing wastewater comprises a frame, a solidifying tank body and a collecting box; the solidifying tank body is supported on the frame and is located above the collecting box; a liquid inlet pipe and a drug adding pipe are connected to the top of the solidifying tank body; an opening at the bottom of the solidifying tank body is arranged to form a discharge port, and the frame is also provided with a sealing bottom plate for blocking the discharge port; the frame is located on one side of the collecting box; a lifting drive member and a flipping drive member are arranged on the frame, the lifting drive member is drivingly connected to the solidifying tank body for driving the solidifying tank body to lift and lower vertically; the flipping drive member is drivingly connected to the sealing bottom plate for driving the sealing bottom plate to flip.

[0008] By adopting the above technical scheme, when the nickel-containing concentrated solution is solidified, the nickel-containing waste liquid is added into the solidification tank through the liquid inlet pipe, and the solidifying agent is added into the solidification tank through the agent adding pipe. After the solidifying agent of the solidification tank fully reacts with the nickel-containing concentrated solution to form a solidified product, the solidification tank is driven upward to move away from the sealing bottom plate by the lifting drive component, and then the sealing bottom plate and the solidified product accumulated on the sealing bottom plate are driven downward by the flipping drive component, so that the solidified product on the sealing bottom plate falls into the collection box, thereby realizing automatic cleaning of the solidified product generated at the bottom of the solidification tank. Compared with the traditional cleaning method of the solidified product at the bottom of the solidification tank, the cleaning efficiency of the solidified product is effectively improved, and the cleaning of the solidified product in the solidification tank is made simpler and more convenient.

[0009] Preferably, a stirring assembly is also provided in the curing tank, and the stirring assembly includes a stirring frame body, and the stirring frame body is vertically rotatably connected to the sealing bottom plate, and a plurality of stirring blades are provided on the stirring frame body. The sealing bottom plate is also provided with a rotary drive member for driving the stirring frame body to rotate.

[0010] By adopting the above technical solution and setting up the stirring component, after the nickel-containing concentrate and the curing agent are subsequently added into the curing tank body, the rotary driving member on the sealing bottom plate drives the stirring frame to drive the stirring blades to rotate, so that the curing agent and the nickel-containing concentrate in the curing tank body can be fully mixed, so that the nickel-containing concentrate can better form a solidified material under the action of the curing agent.

[0011] Preferably, a scraper ring is connected to the top of the stirring frame, and the outer periphery of the scraper ring is arranged to abut against the inner periphery of the curing tank body.

[0012] By adopting the above technical solution and setting a scraper ring, when the subsequent lifting drive drives the curing tank body to move upward, the scraper ring can scrape off the solidified material adhering to the inner periphery of the bottom end of the curing tank body, thereby reducing the residual solidified material in the curing tank body and facilitating more thorough cleaning of the solidified material in the curing tank body.

[0013] Preferably, a scraper plate is protruding from the bottom of the stirring frame body, and the bottom of the scraper plate is connected to the upper surface of the sealing bottom plate.

[0014] By adopting the above technical scheme, on the one hand, when the rotary driving member drives the stirring frame to rotate, the nickel-containing concentrate at the bottom of the solidifying tank body can be stirred by the scraper plate, which is beneficial to further improve the fluidity of the nickel-containing concentrate in the solidifying tank body, and thus facilitate the nickel-containing concentrate to react better with the solidifying agent; on the other hand, after the flip driving member drives the cover plate to swing downward until the stirring frame body faces the collecting box, the rotary driving member can drive the stirring frame body to drive the scraper plate to rotate, so that the scraper plate can be used to scrape off the solidified material adhering to the sealing bottom plate at this time and make it fall into the collecting box, which is beneficial to more thoroughly clean the solidified material adhering to the sealing bottom plate.

[0015] Preferably, when the flip driving member drives the sealing bottom plate to drive the stirring frame body to flip downward to face the collection box, the rotary driving member drives the stirring frame body to reciprocate forward and reverse to shake off the solidified materials adhering to the sealing bottom plate and the stirring frame body.

[0016] By adopting the above technical solution, the stirring frame is driven to rotate forward and reversely by a flip driving member. On the one hand, the solidified materials originally remaining on the stirring frame and the stirring blades can be shaken off by the forward and reverse rotation of the stirring frame, thereby reducing the residual solidified materials on the stirring liquid and the stirring blades; on the other hand, the solidified materials clumped on the sealing bottom plate can be broken up by the rotation of the stirring frame and the stirring blades, so that the solidified materials can be more easily separated from the sealing bottom plate.

[0017] Preferably, a sealing flange is coaxially connected to the outer periphery of the bottom end of the curing tank body; a ring-shaped sealing protrusion is coaxially convexly provided on the upper surface of the sealing bottom plate, and a ring-shaped sealing groove is opened on the lower surface of the sealing flange corresponding to the ring-shaped sealing protrusion, and the ring-shaped sealing protrusion is coaxially embedded in the ring-shaped sealing groove.

[0018] By adopting the above technical solution, the cooperation between the annular sealing protrusion and the annular sealing groove is utilized, which is beneficial to improving the sealing between the sealing bottom plate and the discharge port at the bottom end of the solidification tank body, and limiting the subsequent nickel-containing solution entering the solidification tank body from seeping out from the connection between the sealing bottom plate and the solidification tank body.

[0019] Preferably, a plurality of universal wheels are installed at the bottom of the collection box.

[0020] By adopting the above technical solution, the subsequent collection box can be flexibly moved by a number of universal wheels, so as to facilitate the movement and transfer of the solidified materials in the subsequent collection box.

[0021] A nickel-containing wastewater evaporation concentrate treatment process, using the nickel-containing wastewater evaporation concentrate solidification treatment device, comprises the following steps:

[0022] S1: introducing the nickel-containing solution after evaporation treatment in the evaporator into the solidification tank through the liquid inlet pipe;

[0023] S2: introducing the curing agent into the curing tank through the dosing pipe;

[0024] S3: Cleaning of solidified materials: The solidified tank body is driven upward by the lifting drive member; the sealing bottom plate is driven to flip downward toward the collection box by the flipping drive member, so that the solidified materials on the sealing bottom plate fall into the collection box.

[0025] By adopting the above technical scheme, after the nickel-containing solution in the solidification tank reacts with the solidification agent to form a solidified material, the lifting drive member is used to drive the solidification tank body to move upward to move away from the sealing bottom plate, and then the sealing bottom plate is driven downward by the flipping drive member to flip the solidified material on the sealing bottom plate, so that the solidified material on the sealing bottom plate can fall into the collection box, thereby realizing automatic cleaning of the solidified material generated in the solidification tank body, which is beneficial to reducing the difficulty of cleaning the solidified material in the solidification tank body.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. When cleaning the solidified material in the curing tank, the curing tank is first moved upward by the lifting drive, and then the sealing plate is turned downward by the turning drive to pour the solidified material on the sealing cover into the collection box, thereby realizing automatic cleaning of the solidified material in the curing tank.

[0028] 2. By connecting a scraper ring to the stirring frame and making the outer periphery of the scraper ring abut against the inner periphery of the curing tank body, when the subsequent lifting drive member drives the curing tank body to move upward to move away from the sealing bottom plate, the scraper ring can be used to scrape off the solidified material adhering to the outer periphery of the bottom end of the curing tank body, thereby reducing the residual solidified material in the curing tank body.

[0029] 3. After the flip driving member drives the sealing plate cover to flip downward, the rotary driving member drives the stirring frame to reciprocate forward and reverse. On the one hand, it is beneficial to break up the clumped solidified materials adhering to the sealing bottom plate when the stirring frame and the stirring blade rotate forward and reverse, so that it is easier to fall into the collection box. On the other hand, the solidified materials originally remaining on the stirring frame and the stirring blade can be shaken off into the collection box during the reciprocating forward and reverse rotation of the stirring frame and the stirring blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of the nickel-containing wastewater evaporation concentrate solidification treatment device used in this application.

[0031] Figure 2 yes Figure 1 Enlarged schematic diagram of part A in the middle.

[0032] Figure 3 yes Figure 1 Enlarged schematic diagram of part B in the middle.

[0033] Figure 4 This is a schematic diagram used in the present application to illustrate the state in which the lifting drive member drives the solidification tank body to move upward.

[0034] Figure 5 This is a schematic diagram used in the present application to illustrate the state when the flip driving member drives the sealing bottom plate to drive the stirring frame to swing downward.

[0035] Description of reference numerals:

[0036] 1. Frame; 11. Lifting drive member; 12. Mounting seat; 13. Flipping drive member; 2. Curing tank body; 20. Sealing cover; 21. Liquid inlet pipe; 22. Dosing pipe; 23. Observation tube; 24. First flange; 25. Second flange; 3. Collecting box; 31. Universal wheel; 32. Handle; 4. Sealing bottom plate; 40. Auxiliary connecting block; 41. Sealing flange; 42. Annular sealing protrusion; 411. Annular sealing groove; 5. Stirring frame body; 50. Rotating drive member; 51. First connecting rod; 52. Second connecting rod; 53. Stirring blade; 54. Scraper plate; 6. Scraper ring. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-5 This application is described in further detail.

[0038] The embodiments of the present application disclose a nickel-containing wastewater evaporation concentrate solidification treatment device and treatment process.

[0039] A nickel-containing wastewater evaporation concentrate solidification treatment device, referring to Figure 1 and Figure 2 , including a frame 1, a solidifying tank body 2 and a collecting box 3; the solidifying tank body 2 is supported on the frame 1; the collecting box 3 is located below the solidifying tank body 2; the top of the solidifying tank body 2 is connected with a liquid inlet pipe 21 and a dosing pipe 22, the bottom of the solidifying tank body 2 is open to form a discharge port, and a sealing bottom plate 4 for blocking the discharge port is also provided at the bottom of the solidifying tank body 2; the frame 1 is provided with a lifting drive 11 for driving the solidifying tank body 2 to move up and down and a flipping drive 13 for driving the sealing bottom plate 4 to flip.

[0040] Subsequently, the nickel-containing concentrate and the curing agent to be treated are respectively introduced into the curing tank body 2 through the liquid inlet pipe 21 and the drug adding pipe 22. After the nickel-containing concentrate reacts with the curing agent to form a solidified material, the curing tank body 2 is first driven by the lifting drive 11 to move upward to move away from the sealing bottom plate 4, and then the sealing bottom plate 4 is driven by the flipping drive 13 to flip downward toward the bottom wall of the collecting box 3, so as to pour the solidified material into the collecting box 3, thereby cleaning the solidified material at the bottom of the curing tank body 2.

[0041] Reference Figure 1 and Figure 3 A cleaning port is provided on the top of the solidifying tank body 2, and a sealing cover 20 for sealing the cleaning port is also provided on the top of the solidifying tank body 2. A liquid inlet pipe 21 is located on the sealing cover 20, and an observation tube 23 is vertically connected to the top of the sealing cover 20. A high-transmittance glass plate is connected to the top of the observation tube 23 by bolts. The arrangement of the observation tube 23 and the high-transmittance glass plate facilitates the subsequent observation of the reaction between the nickel-containing concentrate and the solidifying agent inside the solidifying tank body 2.

[0042] A first flange 24 is connected to the outer periphery of the sealing cover 20, and a second flange 25 is coaxially connected to the outer periphery of the cleaning port of the curing tank body 2. The first flange 24 and the second flange 25 are connected by a plurality of bolts and nuts, so that the sealing cover 20 can be detached from the bottom of the curing tank body 2. Through the above arrangement, during subsequent use, the sealing cover 20 on the top of the curing tank body 2 can be regularly removed to facilitate cleaning of the inner cavity of the curing tank body 2 and the high-transmittance glass plate on the observation tube 23.

[0043] Reference Figure 1 and Figure 2 The lifting drive 11 includes an electric screw module vertically installed on the frame 1; a main connecting block is connected to the outer periphery of the curing tank body 2; the main connecting block is connected to the slide of the electric screw module to realize the driving connection of the lifting drive 11 to the curing tank body 2.

[0044] A mounting seat 12 is connected to the sealing bottom plate 4 at the bottom of the frame 1. In the present embodiment, the flip driving member 13 comprises a first reduction motor horizontally mounted on the mounting seat 12; a secondary connecting block 40 is connected to the outer periphery of the sealing bottom plate 4; the output end of the first reduction motor is connected to the secondary connecting block 40 to realize the driving connection of the flip driving member 13 to the sealing bottom plate 4; in other embodiments, the reduction motor can also be replaced by a rotary cylinder.

[0045] Reference Figure 2 and Figure 4 , a stirring frame 5 is also provided on the upper surface of the sealing bottom plate 4; the stirring frame 5 is located in the curing tank 2; a rotary driving member 50 for driving the stirring frame 5 to rotate is also provided at the bottom of the sealing bottom plate 4. The stirring frame 5 includes a first connecting rod 51 arranged horizontally, and the two ends of the first connecting rod 51 are vertically connected to the second connecting rods 52 upward, and the two second connecting rods 52 are connected to the stirring blades 53 on the opposite sides, and the bottom of the first connecting rod 51 is vertically connected to a connecting shaft, and the first connecting rod 51 and the connecting shaft are in a T shape; the connecting shaft is rotatably penetrated through the sealing bottom plate 4 through a sealed bearing; the rotary driving member 50 includes a second reduction motor installed at the bottom of the sealing bottom plate 4, and the output shaft of the second reduction motor is connected to the connecting shaft through a coupling, so that the rotary driving member 50 is driven and connected to the stirring frame 5.

[0046] By setting the stirring frame 5 and the rotary driving member 50, after the nickel-containing concentrated solution and the curing agent are subsequently added into the curing tank 2, the stirring frame 5 is driven by the rotary driving member 50 to drive the stirring blade 53 to rotate, so as to evenly stir the nickel-containing solution and the curing agent, thereby facilitating a better generation of the solidified material. On the other hand, subsequently, after the sealing bottom plate 4 is driven by the flipping driving member 13 to drive the stirring frame 5 to flip toward the bottom of the collecting box 3, the stirring frame 5 can be driven by the rotary driving member 50 to reciprocate forward and reverse, so as to break up the clumped solidified material remaining on the sealing bottom plate 4 and make it fall into the collecting box 3; at the same time, the solidified material on the stirring frame 5 and the stirring blade 53 can be shaken off into the collecting box 3.

[0047] Reference Figure 4 and Figure 5 Two scraper plates 54 are also protruding from the bottom of the first connecting rod 51 ; the bottoms of the two scraper plates 54 are both in contact with the upper surface of the sealing bottom plate 4 . The two scraper plates 54 are symmetrically distributed about the axial direction of the connecting shaft, one end of the scraper plate 54 is arranged close to the connecting shaft, and the other end of the scraper plate 54 extends to the end of the first connecting rod 51. Through the arrangement of the scraper plate 54, on the one hand, when the rotary drive member 50 drives the stirring frame 5 to rotate to stir the nickel-containing concentrate in the solidifying tank body 2, the two scraper plates 54 can stir the nickel-containing concentrate located at the bottom of the solidifying tank body 2 at this time, so that the nickel-containing concentrate can flow better and mix with the solidifying agent. On the other hand, when the subsequent flipping drive member 13 drives the cover plate to drive the flipping frame to flip toward the bottom of the collecting box 3, and drives the stirring frame 5 to rotate back and forth through the rotary drive member 50, the two scraper plates 54 can be driven by the first connecting rod 51 to scrape off the solidified material adhering to the sealing bottom plate 4 from the sealing bottom plate 4, effectively reducing the residual solidified material on the sealing bottom plate 4.

[0048] A scraper ring 6 is also provided on the top of the stirring frame 5, and the bottom of the scraper ring 6 is connected to the top of two second connecting rods 52, so as to realize a stable connection between the scraper ring 6 and the stirring frame 5; the outer periphery of the scraper ring 6 is arranged to abut against the inner periphery of the solidifying tank body 2. By connecting the scraper ring 6 to the top of the stirring frame 5, when the subsequent lifting drive 11 drives the solidifying tank body 2 to move upward, the solidified material adhering to the inner periphery of the bottom of the solidifying tank body 2 can be scraped off by the scraper ring 6, thereby facilitating the reduction of the residual solidified material on the inner periphery of the solidifying tank body 2.

[0049] A sealing flange 41 is coaxially connected to the outer periphery of the discharge port at the bottom end of the solidifying tank body; a ring-shaped sealing protrusion 42 is coaxially convexly provided on the upper surface of the sealing bottom plate 4; a ring-shaped sealing groove 411 is coaxially opened on the lower surface of the sealing flange 41; the ring-shaped sealing protrusion 42 is embedded in the ring-shaped sealing groove 411; through the cooperation between the ring-shaped sealing protrusion 42 and the ring-shaped sealing groove 411, it is beneficial to further improve the sealing between the sealing bottom plate 4 and the sealing cover 20, and limit the subsequent leakage of nickel-containing concentrated liquid entering the solidifying tank body 2 from the gap between the solidifying tank body 2 and the sealing bottom plate 4.

[0050] Reference Figure 1 and Figure 5 Universal wheels 31 are installed at the four top corners of the bottom of the collection box 3, so that the collection box 3 can be flexibly moved through the bottom universal wheels 31, which is convenient for the subsequent transportation of the solidified materials in the collection box 3. Handles 32 are welded and fixed at both ends of the collection box 3, which is convenient for subsequent users to push the collection box 3 through the handles 32 at both ends of the collection box 3.

[0051] A treatment process for nickel-containing wastewater evaporation concentrate, using the above-mentioned solidification device for nickel-containing wastewater evaporation concentrate, comprises the following steps:

[0052] S1: Adding nickel-containing concentrated solution: The nickel-containing solution after evaporation treatment in the evaporator is introduced into the solidification tank 2 through the liquid inlet pipe 21;

[0053] S2: Add curing agent, the specific steps are as follows:

[0054] S2.1: introducing the curing agent into the curing tank 2 through the dosing pipe 22;

[0055] S2.2: The stirring frame 5 is driven by the rotary driving member 50 to drive the stirring blade 53 and the scraper plate 54 to rotate, so as to uniformly stir the curing agent and the nickel-containing concentrated solution in the curing tank 2 until a solidified product is generated.

[0056] S3: Cleaning of solidified materials: The specific steps are as follows:

[0057] S3.1: The solidification tank body 2 moves upward: The solidification tank body 2 is driven upward by the lifting drive member 11 on the frame 1;

[0058] S3.2: The sealing bottom plate 4 turns over: The sealing bottom plate 4 drives the stirring frame 5 to turn downward toward the collecting box 3 through the turning driving member 13 on the frame 1; until the stirring frame 5 on the sealing bottom plate 4 faces the bottom wall of the collecting box 3;

[0059] S3.3: The stirring frame 5 is driven to reciprocate forward and reverse by the rotary driving member 50, so as to break up the clumping solidified material adhering to the sealing bottom plate 4 by the stirring blades 53 and the scraper plate 54 on the stirring frame 5, so that it falls into the collecting box 3, and at the same time, the solidified material adhering to the stirring frame 5 is shaken off into the collecting box 3.

[0060] When cleaning the solidified material in the solidified can, the present application first moves the solidified tank body 2 upward through the lifting drive member 11, and then drives the sealing bottom plate 4 to flip downward toward the inner cavity of the collection box 3 through the flipping drive member 13, so that the solidified material originally accumulated at the bottom of the solidified tank body 2 can fall into the collection box 3, thereby realizing automatic cleaning of the solidified material generated in the solidified tank body 2, which is beneficial to reducing the difficulty of cleaning the solidified material in the solidified tank body 2.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A nickel-containing wastewater evaporation concentrate solidification treatment device, characterized in that: The invention comprises a frame (1), a solidifying tank body (2) and a collecting box (3); the solidifying tank body (2) is supported on the frame (1) and is located above the collecting box (3); a liquid inlet pipe (21) and a drug adding pipe (22) are connected at the top of the solidifying tank body (2); the bottom opening of the solidifying tank body (2) is arranged to form a discharge port, and the frame (1) is also provided with a sealing bottom plate (4) for blocking the discharge port; the frame (1) is located on one side of the collecting box (3); a lifting drive member (11) and a turning drive member (13) are arranged on the frame (1); the lifting drive member (11) is drivingly connected to the solidifying tank body (2) for driving the solidifying tank body (2) to be lifted and lowered vertically; the turning drive member (13) is drivingly connected to the sealing bottom plate (4) for driving the sealing bottom plate (4) to be turned over; A stirring assembly is also provided in the curing tank (2), the stirring assembly comprising a stirring frame (5), the stirring frame (5) being vertically rotatably connected to the sealing bottom plate (4), the stirring frame (5) being provided with a plurality of stirring blades (53), and the sealing bottom plate (4) being further provided with a rotary driving member (50) for driving the stirring frame (5) to rotate; A scraper ring (6) is connected to the top of the stirring frame body (5), and the outer periphery of the scraper ring (6) is arranged to abut against the inner periphery of the curing tank body (2).

2. A nickel-containing wastewater evaporation concentrate solidification treatment device according to claim 1, characterized in that: A scraper plate (54) is protruding from the bottom of the stirring frame body (5), and the bottom of the scraper plate (54) is arranged in contact with the upper surface of the sealing bottom plate (4).

3. A nickel-containing wastewater evaporation concentrate solidification treatment device according to claim 2, characterized in that: When the flip driving member (13) drives the sealing bottom plate (4) to drive the stirring frame body (5) to flip downward to face the collecting box (3), the rotary driving member (50) drives the stirring frame body (5) to reciprocate forward and reverse to shake off the solidified matter adhered to the sealing bottom plate (4) and the stirring frame body (5).

4. The nickel-containing wastewater evaporation concentrate solidification treatment device according to claim 1, characterized in that: A sealing flange (41) is coaxially connected to the outer periphery of the bottom end of the curing tank body (2); an annular sealing protrusion (42) is coaxially convexly provided on the upper surface of the sealing bottom plate (4); an annular sealing groove (411) is formed on the lower surface of the sealing flange (41) corresponding to the annular sealing protrusion (42); and the annular sealing protrusion (42) is coaxially embedded in the annular sealing groove (411).

5. The nickel-containing wastewater evaporation concentrate solidification treatment device according to claim 1, characterized in that: A plurality of universal wheels (31) are installed at the bottom of the collection box (3).

6. A treatment process for nickel-containing wastewater evaporation concentrate, using the nickel-containing wastewater evaporation concentrate solidification treatment device according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1: introducing the nickel-containing solution after evaporation treatment in the evaporator into the solidification tank (2) through the liquid inlet pipe (21); S2: introducing the curing agent into the curing tank (2) through the dosing pipe (22); S3: cleaning of solidified matter: the solidifying tank body (2) is driven upward by the lifting drive member (11); the sealing bottom plate (4) is driven to flip downward toward the collecting box (3) by the flipping drive member (13), so that the solidified matter on the sealing bottom plate (4) falls into the collecting box (3).

Images