Wastewater treatment system for lead-acid battery production

Abstract

This invention discloses a wastewater treatment system for lead-acid battery production, relating to the field of wastewater treatment technology. The invention includes a neutralization sedimentation tank, within which is a dispensing device for adding alkaline substances into the water. It also includes a conveying device located on the bank for transporting the alkaline substances to the dispensing device. The dispensing device includes a first vertical pipe connected to the conveying device, with a funnel-shaped opening A at its bottom end. A protruding edge, partially inserted below the liquid surface, is located at the port of funnel A. This invention, through the dispensing device, allows lime to be directly introduced into the wastewater, preventing the powdered lime from escaping into the air and polluting the surrounding environment after falling from a height.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and in particular relates to a wastewater treatment system for lead-acid battery production. Background Technology

[0002] The acidic heavy metal industrial wastewater generated during the manufacturing process of lead-acid batteries mainly contains harmful heavy metals such as lead and cadmium. If this wastewater is discharged directly without proper treatment, it will cause serious environmental pollution and pose a threat to human health and the sustainable development of agriculture and industry. Currently, the treatment of wastewater from the lead-acid battery industry mainly employs physical, chemical precipitation, and biological treatment methods. These methods can effectively remove heavy metals and reduce environmental pollution to a certain extent.

[0003] The lead-acid battery manufacturing industry employs innovative wastewater treatment technologies, including neutralization precipitation, flocculation separation, air flotation separation, adsorption and ion exchange recovery, advanced oxidation technology, and membrane separation technology. Neutralization precipitation involves adding alkaline substances such as lime and sodium hydroxide to acidic wastewater to neutralize it and adjust the pH to neutral or weakly alkaline. This promotes the combination of lead ions and hydroxide ions to form insoluble lead hydroxide precipitate. Furthermore, if powdered lime is directly added to the wastewater, it will escape into the air, thus affecting the surrounding air quality. Summary of the Invention

[0004] The purpose of this invention is to provide a wastewater treatment system for lead-acid battery production. By setting up an inlet device, lime is directly introduced into the wastewater when it is added, thus preventing the powdered lime from escaping into the air after falling from a height, thereby solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a wastewater treatment system for lead-acid battery production, comprising a neutralization sedimentation tank, wherein the neutralization sedimentation tank is equipped with a dispensing device for dispensing alkaline substances into the water body of the neutralization sedimentation tank, and a conveying device located on the bank for conveying alkaline substances into the dispensing device; the dispensing device includes a first vertical pipe connected to the conveying device, the bottom end of the first vertical pipe is connected to a flared end A, the port of the flared end A is provided with a protruding edge partially inserted below the liquid surface, and the flared end A is provided with several openings;

[0007] An annular electromagnet is provided on the outer peripheral sidewall of the first vertical tube. A sleeve that moves along the axial direction of the first vertical tube is fitted on the outer side of the first vertical tube. An annular magnet is provided at the top of the sleeve and a flared mouth B that is blocked on the flared mouth A is provided at the bottom of the sleeve.

[0008] When the annular electromagnet is energized, the annular electromagnet and the annular magnet repel each other, and at this time, the horn mouth B abuts against the outer wall of the horn mouth A.

[0009] When the annular electromagnet is de-energized, the annular electromagnet and the annular magnet attract each other, and at this time there is a gap between the horn mouth B and the horn mouth A.

[0010] Furthermore, the conveying device includes a screw feeder, the end of which is connected to a second vertical pipe inserted into the first vertical pipe, the end of which is connected to a rubber sleeve, and the end of the screw feeder is provided with a connecting part that connects to the rubber sleeve.

[0011] Furthermore, at least three telescopic rods are provided on the outer peripheral wall of the bottom end of the second vertical tube, and the ends of the telescopic rods are embedded with ball bearings that roll along the inside of the first vertical tube.

[0012] Furthermore, a discharge port with an opening that gradually decreases in size from top to bottom is connected to the inner wall of the first vertical pipe located directly below the second vertical pipe; a conical cover is connected to the inner wall of the first vertical pipe located directly below the discharge port via a connecting block.

[0013] Furthermore, it also includes a support frame fixed inside the neutralization sedimentation tank, the support frame including a support frame supported by several pillars; a connecting flange is provided at the top of the first vertical pipe, four guide sleeves are provided on the connecting flange, and a T-shaped guide rod penetrating the guide sleeves is provided on the bottom side of the support frame.

[0014] Furthermore, four U-shaped clamps are connected to the convex edge, a crossbar is connected to one side of each U-shaped clamp, and a float is connected to the end of the crossbar.

[0015] Furthermore, it also includes a rectangular connecting frame, the four corner sides of which are fixedly connected to a pontoon.

[0016] Furthermore, the bottom of the pontoon has at least two through holes, and adjacent pontoons are connected by a pipe, with the two ends of the pipe connected to the through holes at the bottom of the two pontoons respectively.

[0017] The present invention has the following beneficial effects:

[0018] This invention, through the setting of a dispensing device, enables the lime to be directly introduced into the water body when it is added to wastewater, thus avoiding the powdery lime from falling from a height and escaping into the air, which would pollute the surrounding environment.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the wastewater treatment system of the present invention;

[0022] Figure 2 This is a schematic diagram of the dispensing device of the present invention. Figure 1 ;

[0023] Figure 3 for Figure 2 The main view;

[0024] Figure 4 for Figure 2 Side view;

[0025] Figure 5 for Figure 4 Sectional view at point AA. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0028] Please see Figure 1-5As shown, this invention is a wastewater treatment system for lead-acid battery production, including a neutralization sedimentation tank. A support frame is installed within the tank, and a dispensing device 2 is mounted on top of the frame. A conveying device 1, comprising a screw feeder, is installed between the bank and the support frame. During operation, lime is fed into the hopper of the conveying device 1 from the bank, and the lime is transported and fed into the dispensing device 2. The dispensing device 2 then directly dispenses the lime below the water surface. Based on this design, the powdered lime is avoided from dispensing at a distance from the water surface, preventing it from dispersing into the air during its descent.

[0029] The support includes a support frame 20 supported by a plurality of pillars 201, and one end of the conveying device 1 rests on the support frame 20 after installation.

[0030] Specifically, the provided dispensing device 2 includes a first vertical pipe 21 connected to the conveying device 1. The bottom end of the first vertical pipe 21 is connected to a flared mouth A22. The port of the flared mouth A22 is provided with a protruding edge 23 that is partially inserted below the liquid surface. The end of the screw feeder is connected to a second vertical pipe 12 inserted into the first vertical pipe 21. The end of the second vertical pipe 12 is connected to a rubber sleeve 11. The end of the screw feeder is provided with a connecting part that connects to the rubber sleeve 11. Thus, it is convenient to use the screw feeder to convey lime into the dispensing device 2 and reduce the dispersion of powdered lime.

[0031] During use, a stirring mechanism is also installed in the neutralization sedimentation tank. When the dispensing device 2 and the conveying device 1 dispense lime, the stirring mechanism is turned off. When the dispensing is completed, the stirring mechanism is turned on. When the stirring mechanism is turned on, the water surface will be disturbed. In order to prevent the waves from impacting the inner wall of the first vertical pipe 21, several openings 221 are provided on the flared opening A22. At the same time, in order to prevent the powdered lime from escaping into the air from the openings 221 during lime dispensing, an annular electromagnet 24 is provided on the outer peripheral side wall of the first vertical pipe 21. A sleeve 26 that moves along the axial direction of the first vertical pipe 21 is fitted on the outside of the first vertical pipe 21. An annular magnet 25 is provided on the top of the sleeve 26 and a flared opening B27 that covers the flared opening A22 is provided at the bottom of the sleeve 26.

[0032] Then, when using it, the following can be achieved:

[0033] When the annular electromagnet 24 is energized, the annular electromagnet 24 and the annular magnet 25 repel each other, and at this time the flared mouth B27 abuts against the outer wall of the flared mouth A22.

[0034] When the annular electromagnet 24 is de-energized, the annular electromagnet 24 and the annular magnet 25 attract each other, and at this time there is a gap between the horn mouth B27 and the horn mouth A22.

[0035] Specifically, at least three telescopic rods 13 are provided on the outer periphery of the bottom end of the second vertical tube 12. The ends of the telescopic rods 13 are embedded with ball bearings that roll along the inside of the first vertical tube 21, so as to facilitate the control of the movable connection between the second vertical tube 12 and the first vertical tube 21.

[0036] Based on the above, in order to avoid the splashing of sewage onto the inner wall of the first vertical pipe 21 caused by the impact of lime on the liquid surface during the lime feeding process, a discharge port 213 with an opening that gradually decreases from top to bottom is connected to the inner wall of the first vertical pipe 21 located directly below the second vertical pipe 12; a conical cover 214 is connected to the inner wall of the first vertical pipe 21 located directly below the discharge port 213 via a connecting block.

[0037] During use, the part of the protruding edge 23 needs to be inserted below the liquid surface. Then, the lifting and lowering of the dispensing device 2 is controlled by the rise and fall of the liquid level in the neutralization sedimentation tank. Four U-shaped clamps 292 are connected to the protruding edge 23. A crossbar 291 is connected to one side of the U-shaped clamp 292. A float 29 is connected to the end of the crossbar 291. At the same time, in order to maintain the stability of lifting and lowering, a connecting flange 211 is set at the top of the first vertical pipe 21. Four guide sleeves 212 are set on the connecting flange 211. A T-shaped guide rod 202 penetrating the guide sleeve 212 is set on the bottom side of the support frame 20.

[0038] In order to maintain the stability of the pontoon 29 after installation, a rectangular connecting frame 28 is also included. The four corner sides of the rectangular connecting frame 28 are fixedly connected to a pontoon 29. The bottom of the pontoon 29 is provided with at least two through holes. The two adjacent pontoons 29 are connected by a pipeline, and the two ends of the pipeline are respectively connected to the through holes at the bottom of the two pontoons 29.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A wastewater treatment system for lead-acid battery production, characterized in that: The system includes a neutralization sedimentation tank, which is equipped with a dispensing device (2) for dispensing alkaline substances into the water body of the neutralization sedimentation tank, and a conveying device (1) set on the bank for conveying alkaline substances into the dispensing device (2); the dispensing device (2) includes a first vertical pipe (21) connected to the conveying device (1), the bottom end of the first vertical pipe (21) is connected to a flared mouth A (22), the port of the flared mouth A (22) is provided with a protruding edge (23) partially inserted below the liquid surface, and the flared mouth A (22) is provided with several openings (221). A ring electromagnet (24) is provided on the outer peripheral side wall of the first vertical tube (21). A sleeve (26) that moves along the axial direction of the first vertical tube (21) is provided on the outer side of the first vertical tube (21). A ring magnet (25) is provided at the top of the sleeve (26), and a flared mouth B (27) that is blocked on the flared mouth A (22) is provided at the bottom of the sleeve (26). Four U-shaped clamps (292) are connected to the convex edge (23). A crossbar (291) is connected to one side of the U-shaped clamp (292). A float (29) is connected to the end of the crossbar (291). A rectangular connecting frame (28) is also included. The four corner sides of the rectangular connecting frame (28) are fixedly connected to a float (29). The bottom of the float (29) has at least two through holes. Two adjacent floats (29) are connected by a pipe. The two ends of the pipe are respectively connected to the through holes at the bottom of the two floats (29). When the annular electromagnet (24) is energized, the annular electromagnet (24) and the annular magnet (25) repel each other, and at this time the horn mouth B (27) abuts against the outer wall of the horn mouth A (22); When the annular electromagnet (24) is de-energized, the annular electromagnet (24) and the annular magnet (25) attract each other, and at this time there is a gap between the horn mouth B (27) and the horn mouth A (22).

2. The wastewater treatment system for lead-acid battery production according to claim 1, characterized in that, The conveying device (1) includes a screw feeder, the end of which is connected to a second vertical pipe (12) inserted into the first vertical pipe (21), the end of which is connected to a rubber sleeve (11), and the end of the screw feeder is provided with a connecting part that is connected to the rubber sleeve (11).

3. The wastewater treatment system for lead-acid battery production according to claim 2, characterized in that, At least three telescopic rods (13) are provided on the outer periphery of the bottom end of the second vertical tube (12), and the ends of the telescopic rods (13) are embedded with balls that roll along the inside of the first vertical tube (21).

4. A wastewater treatment system for lead-acid battery production according to claim 2 or 3, characterized in that, The inner wall of the first vertical pipe (21) located directly below the second vertical pipe (12) is connected to a discharge port (213) with an opening that gradually decreases from top to bottom. A conical cover (214) is connected to the inner wall of the first vertical pipe (21) located directly below the discharge port (213) via a connecting block.

5. The wastewater treatment system for lead-acid battery production according to claim 1, characterized in that, It also includes a support frame fixed in the neutralization sedimentation tank, the support frame including a support frame (20) supported by a plurality of pillars (201). A connecting flange (211) is provided at the top of the first vertical pipe (21), and four guide sleeves (212) are provided on the connecting flange (211). A T-shaped guide rod (202) that penetrates the guide sleeve (212) is provided on the bottom side of the support frame (20).

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