Treatment device for waste battery recovery wastewater

Abstract

The utility model discloses a treatment device for waste battery recovery wastewater. The treatment device comprises a treatment tank, a top cover mounted at the top of the treatment tank, and a stirring assembly mounted on the top cover, the stirring assembly comprises a rotating rod arranged at the bottom of the top cover; the stirring assembly is arranged on the top cover, after wastewater and a chemical reagent are added into the treatment tank, stirring and mixing of the wastewater and the chemical reagent are achieved, meanwhile, under cooperation of the gas conveying pipe, the flange, the aerator, the crushing blades and the through holes, bubbles can be released into the wastewater, breakage of the bubbles is accelerated, strong disturbance can be generated in the wastewater, and the wastewater treatment effect is improved. According to the present invention, the wastewater and the chemical reagent can be further uniformly mixed, the tiny gas-liquid interface can be formed in the wastewater so as to promote the chemical reaction rate, and the tiny particles in the wastewater can be driven to violently collide and coalesce so as to increase the particle size, such that the precipitation process is accelerated, and the precipitation effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery recycling technology, and in particular to a device for treating wastewater from waste battery recycling. Background Technology

[0002] Battery recycling refers to the collection of used batteries to prevent them from entering the ecosystem and harming the environment. Used batteries contain large amounts of heavy metals and electrolyte solutions such as waste acids and alkalis. If discarded indiscriminately, the decaying batteries can damage water sources and land, posing a significant threat to the environment. Traditional wastewater treatment methods for used battery recycling mainly include chemical precipitation, coagulation sedimentation, adsorption, and membrane separation. Among these, chemical precipitation is widely used due to its simplicity and relatively low cost.

[0003] In the treatment of wastewater from waste battery recycling, chemical precipitation requires the addition of chemical reagents to the wastewater to form precipitates and remove heavy metal ions. Traditionally, the method of increasing the reaction rate between wastewater and chemical reagents to improve precipitation effect and efficiency often relies solely on the rotational action of stirring to improve mixing efficiency. However, traditional rotational stirring often fails to completely disperse tiny particles, resulting in uneven mixing in some areas, which in turn affects the precipitation effect. Summary of the Invention

[0004] This invention overcomes the shortcomings of the prior art and provides a device for treating wastewater from waste battery recycling.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a waste battery recycling wastewater treatment device, comprising: a treatment tank, a top cover installed on the top of the treatment tank, and a stirring assembly installed on the top cover;

[0006] The stirring assembly includes: a rotating rod disposed at the bottom of the top cover, several stirring blades fixed at the bottom of the rotating rod, and several crushing blades fixed on the inner side of the rotating rod located inside the processing tank; the surface of the crushing blades is provided with several through holes, and the top of the top cover is provided with a power source for driving the rotating rod to rotate.

[0007] Several gas delivery pipes are fixed to the bottom of the treatment tank. An aerator is fixed to one end of the gas delivery pipe facing the inside of the treatment tank to disperse the gas delivered by the gas delivery pipe into fine bubbles. A flange is installed at the end of the gas delivery pipe facing the bottom of the treatment tank for connecting to the gas delivery end of an external gas delivery device.

[0008] In a preferred embodiment of this utility model, the side of the rotating rod near the top is rotatably connected to the inner side of the top cover via a bearing; a plurality of stirring blades and a plurality of crushing blades are evenly distributed circumferentially on the side of the rotating rod.

[0009] In a preferred embodiment of this utility model, the power source includes: a servo motor fixed to the top of the processing tank; the output end of the servo motor is fixed to the top end of the rotating rod.

[0010] In a preferred embodiment of this invention, the gas delivery pipe is provided with a one-way gas valve to prevent liquid backflow.

[0011] In a preferred embodiment of this utility model, the bottom of the processing tank is arc-shaped, and a discharge cylinder is fixed in the middle; a valve is installed on the side of the discharge cylinder, and a filter screen is provided on the inner side of the discharge cylinder.

[0012] In a preferred embodiment of this utility model, a handle is fixed to the bottom of the filter screen, a guide groove is provided at the bottom of the discharge cylinder, a snap-fit ​​groove is provided at the top of the guide groove, and a snap-fit ​​block is fixed to the side of the filter screen, the snap-fit ​​block snaps into the inner side of the snap-fit ​​groove.

[0013] In a preferred embodiment of this utility model, the guide groove and the snap-fit ​​groove are arranged in an inverted L-shape, the width of the snap-fit ​​block is the same as the width of the guide groove, and the thickness is the same as the thickness of the snap-fit ​​groove.

[0014] In a preferred embodiment of the present invention, a feed pipe is fixed to the top of the top cover, and the interior of the feed pipe extends to the lower surface of the top cover.

[0015] In a preferred embodiment of the present invention, an observation window for observing the internal condition of the processing tank is provided on the side of the processing tank.

[0016] In a preferred embodiment of the present invention, a support frame is provided at the bottom of the processing tank for supporting the tank.

[0017] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0018] (1) This utility model provides a waste battery recycling wastewater treatment device. By setting a stirring component on the top cover, after the wastewater and chemical reagents are added into the treatment tank, the wastewater and chemical reagents are stirred and mixed by the cooperation of the power source, rotating rod, stirring blade and crushing blade. At the same time, with the cooperation of the gas pipe, flange, aerator, crushing blade and through hole, bubbles can be released into the wastewater and the bursting of bubbles can be accelerated. Strong disturbance can be generated in the wastewater, which not only helps to further mix the wastewater and chemical reagents evenly, but also forms a small gas-liquid interface in the wastewater, promotes the rate of chemical reaction, and drives the small particles in the wastewater to collide and aggregate more violently, increasing the particle size, thereby accelerating the sedimentation process and improving the sedimentation effect.

[0019] (2) In this utility model, by fixing the discharge cylinder at the bottom of the treatment tank, the solid precipitate after treatment and the wastewater discharge are achieved through the cooperation of the discharge cylinder, valve and filter screen. The valve can control the discharge process, which helps to keep the treatment tank clean and the discharge operation. After the precipitate is filtered by the filter screen and the wastewater is discharged by the discharge cylinder, the filtered precipitate can be taken out through the cooperation of the handle, the locking block, the locking groove and the guide groove. This not only facilitates the installation and disassembly of the filter screen, but also avoids the filtration and separation of the precipitate in subsequent steps, thereby improving the wastewater treatment efficiency. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0021] Figure 1 This is a perspective structural diagram of a preferred embodiment of the present invention;

[0022] Figure 2 This is a half-sectional view of the processing tank according to a preferred embodiment of the present invention;

[0023] Figure 3 This is a structural diagram of the connection between the filter screen and the discharge cylinder in a preferred embodiment of this utility model;

[0024] Figure 4 This is a structural diagram showing the separation of the filter screen and the discharge cylinder according to a preferred embodiment of this utility model;

[0025] In the diagram: 1. Processing tank; 11. Top cover; 2. Rotating rod; 21. Agitator blade; 22. Crushing blade; 3. Air supply pipe; 31. Aerator; 4. Servo motor; 5. Discharge cylinder; 51. Valve; 52. Filter screen; 53. Handle; 54. Guide groove; 55. Snap-fit ​​groove; 56. Clamping block; 6. Feed pipe; 7. Observation window; 8. Support frame. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0027] like Figure 1 and Figure 2 As shown, a waste battery recycling wastewater treatment device includes: a treatment tank 1, a top cover 11 installed on the top of the treatment tank 1, and a stirring assembly installed on the top cover 11; the stirring assembly includes: a rotating rod 2 disposed at the bottom of the top cover 11, several stirring blades 21 fixed at the bottom of the rotating rod 2, and several crushing blades 22 fixed on the inner side of the rotating rod 2 located inside the treatment tank 1; several through holes are opened on the surface of the crushing blades 22, and a power source for driving the rotating rod 2 to rotate is provided at the top of the top cover 11; several gas supply pipes 3 are fixed at the bottom of the treatment tank 1, and an aerator 31 for dispersing the gas transported by the gas supply pipes 3 into fine bubbles is fixed at one end of the gas supply pipes 3 facing the inside of the treatment tank 1, and a flange is installed at the end of the gas supply pipes 3 facing the bottom of the treatment tank 1 for connecting to the gas supply end of an external gas supply device.

[0028] It should be noted that the side of the rotating rod 2 near the top is rotatably connected to the inner side of the top cover 11 via a bearing; several stirring blades 21 and several crushing blades 22 are evenly distributed circumferentially on the side of the rotating rod 2; the external gas conveying device can be a gas pump, compressor, or other gas conveying element, serving as the gas source for the gas conveying pipe 3. The gas conveying device can input gas into the gas conveying pipe 3 using techniques known to those skilled in the art, and therefore will not be elaborated here; after wastewater and chemical reagents are added into the treatment tank 1, the rotating rod 2 is driven to rotate by a power source, enabling the stirring blades 21 and crushing blades 22 on the side of the rotating rod 2 to rotate synchronously, achieving... The wastewater and chemical reagents are stirred and mixed, while gas is delivered into the gas delivery pipe 3 through a flange connection at the bottom of the gas delivery pipe 3 via a gas delivery device. This gas is then supplied to the aerator 31. During the rotation and stirring, bubbles are released into the wastewater. As the bubbles rise in the wastewater, the several through holes on the surface of the crushing blades 22 accelerate their bursting, creating strong turbulence in the wastewater. This not only helps to further mix the wastewater and chemical reagents evenly but also forms a tiny gas-liquid interface in the wastewater, promoting the rate of chemical reaction. At the same time, it causes the tiny particles in the wastewater to collide and aggregate more violently, increasing the particle size and thus accelerating the sedimentation process and improving the sedimentation effect.

[0029] In some embodiments, the power source includes: a servo motor 4 fixed to the top of the treatment tank 1; the output end of the servo motor 4 is fixed to the top of the rotating rod 2; the servo motor 4 has the ability to precisely control the speed and direction of rotation. By fixing its output end to the top of the rotating rod 2, precise control of the speed and direction of rotation of the stirring assembly can be achieved, which helps to adjust the stirring intensity according to different stages or different needs of wastewater treatment to achieve the best treatment effect.

[0030] In some embodiments, the gas supply pipe 3 is provided with a gas check valve to prevent liquid backflow; by providing the gas check valve, wastewater in the treatment tank 1 can be prevented from flowing back into the gas supply pipe 3, thus keeping the gas supply pipe 3 clean and unobstructed.

[0031] like Figure 3 and Figure 4 As shown, in some embodiments, the bottom of the treatment tank 1 is arc-shaped, and a discharge cylinder 5 is fixed in the middle; a valve 51 is installed on the side of the discharge cylinder 5, and a filter screen 52 is provided on the inner side of the discharge cylinder 5; by making the bottom of the treatment tank 1 arc-shaped, it helps the wastewater to be evenly distributed and flowed during the treatment process, reducing dead corners and the formation of sediments. The discharge cylinder 5 and the filter screen 52 enable the separation of solid sediments after treatment and the discharge of wastewater. The valve 51 can control the discharge process, which helps to keep the treatment tank 1 clean and facilitate the discharge operation.

[0032] In some embodiments, a handle 53 is fixed to the bottom of the filter screen 52, a guide groove 54 is provided at the bottom of the discharge cylinder 5, a snap-fit ​​groove 55 is provided at the top of the guide groove 54, and a snap-fit ​​block 56 is fixed to the side of the filter screen 52, the snap-fit ​​block 56 snaps into the inside of the snap-fit ​​groove 55.

[0033] It should be noted that the guide groove 54 and the snap-fit ​​groove 55 are arranged in an inverted L-shape. The width of the snap-fit ​​block 56 is the same as the width of the guide groove 54, and the thickness is the same as the thickness of the snap-fit ​​groove 55. Through the cooperation of the snap-fit ​​block 56 and the snap-fit ​​groove 55, and the guidance of the guide groove 54, the filter screen 52 can be quickly and securely connected to the discharge cylinder 5. After the sediment is filtered by the filter screen 52 and the wastewater is discharged from the discharge cylinder 5, by holding the handle 53, the snap-fit ​​block 56 on the side of the filter screen 52 can be aligned with the guide groove 54 through the snap-fit ​​groove 55 and then detached from the guide groove 54, so that the filtered sediment can be removed. This not only facilitates the installation and disassembly of the filter screen 52, but also avoids the need for subsequent steps to filter and separate the sediment, thereby improving the wastewater treatment efficiency.

[0034] like Figure 1 As shown, in some embodiments, a feed pipe 6 is fixed to the top of the top cover 11, and the inside of the feed pipe 6 extends to the lower surface of the top cover 11; the feed pipe 6 allows wastewater and chemical reagents to be easily added into the treatment tank 1 for subsequent treatment.

[0035] In some embodiments, the side of the treatment tank 1 is provided with an observation window 7 for observing the internal condition of the treatment tank 1; the observation window 7 is provided so that the operator can intuitively observe the internal condition of the treatment tank 1, including the color, turbidity, foaming of the wastewater, etc., so as to judge the treatment effect and adjust the treatment parameters in a timely manner.

[0036] In some embodiments, a support frame 8 is provided at the bottom of the treatment tank 1 to provide support; by supporting the treatment tank 1 with the support frame 8, the weight of the treatment tank 1 and the wastewater inside can be effectively distributed and borne, ensuring its stability and safety during the preparation process.

[0037] In use, wastewater and chemical reagents are added to the treatment tank 1 through the feed pipe 6. A servo motor 4 fixed to the top of the treatment tank 1 drives the rotating rod 2 to rotate, which in turn drives the stirring blades 21 and the crushing blades 22 to rotate synchronously, achieving mixing of the wastewater and chemical reagents. Simultaneously, an external gas delivery device is connected to the gas supply pipe 3 via a flange to supply gas to the aerator 31, causing the gas to disperse into fine bubbles within the treatment tank 1 and release into the wastewater. During the rotation and stirring process, the through-holes on the surface of the crushing blades 22 accelerate the bursting of bubbles, generating strong turbulence and promoting further homogenization of the wastewater and chemical reagents. This also forms a tiny gas-liquid interface, accelerating the chemical reaction rate and causing the tiny particles in the wastewater to collide and coalesce more violently, increasing particle size and accelerating the sedimentation process. The treated wastewater is separated from the sediment through the discharge cylinder 5 and the filter screen 52, with the discharge process controlled by the valve 51. This achieves effective treatment and resource utilization of wastewater from waste battery recycling.

[0038] Based on the above description and the preferred embodiments of this utility model, it will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for treating wastewater from recycling of spent batteries, characterized in that The utility model provides a kind of processing tank, top cover (11) installed on the top of the processing tank (1) and stirring assembly installed on the top cover (11);The stirring assembly includes: rotating rod (2) arranged at the bottom of the top cover (11), a plurality of stirring blades (21) fixed at the bottom of the rotating rod (2), and a plurality of crushing blades (22) fixed at the rotating rod (2) located at the inside side of the processing tank (1);The surface of the crushing blade (22) is provided with a plurality of through holes, and the top of the top cover (11) is provided with a power source for driving the rotating rod (2) to rotate. The bottom of the processing tank (1) is fixed with a plurality of gas pipes (3), one end of the gas pipe (3) towards the inside of the processing tank (1) is fixed with an aerator (31) for dispersing the gas delivered by the gas pipe (3) into fine bubbles, and the end of the gas pipe (3) towards the bottom of the processing tank (1) is provided with a flange for connecting the gas delivery end of the external gas delivery device. The side of the rotating rod (2) close to the top is rotatably connected to the inside of the top cover (11) by a bearing, and a plurality of stirring blades (21) and a plurality of crushing blades (22) are uniformly distributed on the side of the rotating rod (2). The power source includes a servo motor (4) fixed at the top of the processing tank (1), and the output end of the servo motor (4) is fixed to the top end of the rotating rod (2).

2. The device for treating wastewater from recycling waste batteries according to claim 1, characterized in that: The inside of the gas pipe (3) is provided with a gas check valve for preventing liquid backflow.

3. The device for treating wastewater from recycling waste batteries according to claim 1, characterized in that: The bottom of the processing tank (1) is arc-shaped, and a discharge cylinder (5) is fixed in the middle, a valve (51) is installed on the side of the discharge cylinder (5), and a filter screen (52) is arranged on the inside of the discharge cylinder (5).

4. The device for treating wastewater from recycling waste batteries according to claim 1, characterized in that: The bottom of the filter screen (52) is fixed with a handle (53), the bottom of the discharge cylinder (5) is provided with a guide groove (54), the top of the guide groove (54) is provided with a clamping groove (55), the side of the filter screen (52) is fixed with a clamping block (56), and the clamping block (56) is clamped on the inside of the clamping groove (55).

5. The device for treating wastewater from recycling of waste batteries according to claim 1, characterized in that: The guide groove (54) and the clamping groove (55) are arranged in inverted L shape, the width of the clamping block (56) is the same as the width of the guide groove (54), and the thickness of the clamping block (56) is the same as the thickness of the clamping groove (55).

6. The device for treating wastewater from recycling of waste batteries according to claim 5, characterized in that: The top of the top cover (11) is fixed with a feeding pipe (6), and the inside of the feeding pipe (6) penetrates to the lower surface of the top cover (11).

7. The device for treating wastewater from recycling of waste batteries according to claim 6, characterized in that: The side of the processing tank (1) is provided with an observation window (7) for observing the internal condition of the processing tank (1).

8. The device for treating wastewater from recycling of waste batteries according to claim 1, characterized in that: The bottom of the processing tank (1) is provided with a support frame (8) for supporting.

9. The device for treating wastewater from recycling of waste batteries according to claim 1, characterized in that: ​ 10. The device for treating wastewater from recycling of waste batteries according to claim 1, characterized in that: ​

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