Wastewater treatment system for lead-acid storage battery production

Abstract

The invention discloses a wastewater treatment system for lead-acid storage battery production, and relates to the technical field of wastewater treatment. The device comprises a neutralization and sedimentation tank, a feeding device for feeding alkaline substances into a water body of the neutralization and sedimentation tank is arranged in the neutralization and sedimentation tank, and the device further comprises a conveying device which is arranged on the shore and is used for conveying the alkaline substances into the feeding device; the feeding device comprises a first vertical pipe communicated with the conveying device, the bottom end of the first vertical pipe is connected with a horn mouth A, and a protruding edge partially inserted below the liquid level is arranged at the end opening of the horn mouth A. According to the invention, through the arrangement of the putting device, lime is directly introduced into a water body when being put into wastewater, so that the situation that powdery stone escapes into the air after high-altitude descending and pollutes the surrounding environment is avoided.

Description

Technical Field

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

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

[0003] The lead-acid battery manufacturing industry adopts innovative wastewater treatment technologies, including neutralization precipitation, flocculation separation, flotation separation, adsorption and ion exchange recovery, advanced oxidation technology and membrane separation technology. Neutralization precipitation: For acidic wastewater, add alkaline substances such as lime and sodium hydroxide for neutralization reaction, adjust the pH to neutral or weak alkaline, and promote the combination of lead ions and hydroxide ions to form insoluble lead hydroxide precipitates; if the powdered lime is directly added to the sewage, the powdered lime will escape into the air, thereby affecting the surrounding air quality. Summary of the invention

[0004] The purpose of the present invention is to provide a wastewater treatment system for lead-acid battery production. By setting a delivery device, the lime can be directly introduced into the water body when it is added to the wastewater, avoiding the powdered stone from escaping into the air after being dropped from a high altitude, thereby solving the problems raised by the background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a wastewater treatment system for lead-acid battery production, comprising a neutralization sedimentation tank, wherein the neutralization sedimentation tank is provided with a delivery device for delivering alkaline substances into a water body of the neutralization sedimentation tank, and further comprising a conveying device arranged on a bank and used for delivering the alkaline substances into the delivery device; the delivery device comprises a first vertical pipe connected to the conveying device, the bottom end of the first vertical pipe is connected with a bell mouth A, a convex edge partially inserted below a liquid surface is provided at the port of the bell mouth A, and a plurality of openings are provided on the bell mouth A;

[0007] An annular electromagnet is arranged on the outer peripheral side wall of the first vertical tube, a sleeve is arranged outside the first vertical tube and moves along the axial direction of the first vertical tube, an annular magnet is arranged on the top of the sleeve, and a bell mouth B covering the bell mouth A is arranged 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 bell mouth B abuts against the outer wall of the bell mouth A;

[0009] When the annular electromagnet is powered off, the annular electromagnet and the annular magnet attract each other, and at this time there is a gap between the bell mouth B and the bell mouth A.

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

[0011] Furthermore, at least three telescopic rods are arranged on the outer peripheral side wall of the bottom end of the second vertical tube, and balls rolling along the inside of the first vertical tube are embedded at the ends of the telescopic rods.

[0012] Furthermore, a feed opening whose opening gradually decreases from top to bottom is connected to the inner wall of the first vertical tube directly below the second vertical tube; and a conical cover is connected to the inner wall of the first vertical tube directly below the feed opening via a connecting block.

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

[0014] Furthermore, four U-shaped clamping blocks are connected to the convex edge, one side of the U-shaped clamping block is connected to a cross bar, and the end of the cross bar is connected to a buoy.

[0015] Furthermore, a rectangular connection frame is also included, and four corner sides of the rectangular connection frame are fixedly connected to a buoy.

[0016] Furthermore, at least two through holes are arranged at the bottom of the buoy, and two adjacent buoys are connected by a pipeline, and two ends of the pipeline are respectively connected to the through holes at the bottom of the two buoys.

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

[0018] The invention realizes that when lime is added into waste water, the lime is directly introduced into the water body by setting a delivery device, thereby preventing the powdered lime from escaping into the air after being dropped from a high altitude, thereby preventing the surrounding environment from being polluted.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

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

[0022] Figure 2 The structure of the delivery device of the present invention is shown in FIG. Figure 1 ;

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

[0024] Figure 4 for Figure 2 Side view of

[0025] Figure 5 for Figure 4 Sectional view at AA. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] See also Figure 1-5As shown, the present invention is a wastewater treatment system for lead-acid battery production, including a neutralization sedimentation tank, and a bracket is installed in the neutralization sedimentation tank, a delivery device 2 is installed on the top of the bracket, and a conveying device 1 is installed between the shore and the bracket, and the conveying device 1 includes a screw feeder, and when in use, lime is put into the upper hopper of the conveying device 1 on the shore, and the lime is transported and put into the delivery device 2 under the action of the conveying device 1, and then the lime is directly put into the liquid surface under the action of the delivery device 2. Based on the above arrangement, it is avoided that when lime is put at a certain distance from the water surface, the powdered lime will be dispersed in the air during the descending process.

[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 delivery 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 with a bell mouth A22, and a convex edge 23 partially inserted below the liquid surface is provided at the port of the bell mouth A22. The end of the screw feeder is connected with a second vertical pipe 12 inserted into the first vertical pipe 21, and the end of the second vertical pipe 12 is connected to the rubber sleeve 11. The end of the screw feeder is provided with a connecting portion connected to the rubber sleeve 11, so that when in use, the screw feeder is used to conveniently transport lime into the delivery device 2 and reduce the escape of powdered lime.

[0031] During use, a stirring mechanism is also provided in the neutralization sedimentation tank. When the control device 2 and the conveying device 1 are used to release lime, the stirring mechanism is controlled to be closed. When the release is completed, the stirring mechanism is controlled to be started. When the stirring mechanism is started, the water surface will fluctuate. In order to prevent the waves from impacting the inner wall of the first vertical pipe 21 when the water surface fluctuates, a plurality of openings 221 are provided on the bell-shaped mouth A22. At the same time, in order to prevent the powdered lime from escaping into the air from the openings 221 when lime is released, based on this requirement, an annular electromagnet 24 is provided on the outer peripheral side wall of the first vertical pipe 21, and a pipe sleeve 26 movable along the axial direction of the first vertical pipe 21 is provided on the outer side of the first vertical pipe 21. An annular magnet 25 is provided on the top of the pipe sleeve 26, and a bell-shaped mouth B27 shielding the bell-shaped mouth A22 is provided on the bottom of the pipe sleeve 26.

[0032] Then when using it:

[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 bell mouth B27 abuts against the outer wall of the bell mouth A22;

[0034] When the annular electromagnet 24 is powered off, the annular electromagnet 24 and the annular magnet 25 attract each other, and at this time there is a gap between the bell mouth B27 and the bell mouth A22.

[0035] Specifically, at least three telescopic rods 13 are disposed on the outer peripheral side wall of the bottom end of the second vertical tube 12 , and balls rolling along the inside of the first vertical tube 21 are embedded at the ends of the telescopic rods 13 , so as to facilitate the control of the second vertical tube 12 and the first vertical tube 21 to be movably connected.

[0036] On the basis of the above, in order to avoid sewage splashing onto the inner wall of the first vertical pipe 21 due to lime impacting the liquid surface during the lime adding process, a discharge port 213 with an opening gradually decreasing 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 through a connecting block.

[0037] When in use, it is necessary to keep part of the convex edge 23 inserted below the liquid surface, and then it is necessary to control the lifting and lowering of the delivery device 2 in conjunction with the rise and fall of the liquid level in the neutralization sedimentation tank. Four U-shaped clamps 292 are connected to the convex edge 23, one side of the U-shaped clamp 292 is connected to a cross bar 291, and the end of the cross bar 291 is connected to a float 29; at the same time, in order to maintain the stability of lifting, a connecting flange 211 is provided on the top of the first vertical pipe 21, four guide sleeves 212 are provided on the connecting flange 211, and a T-shaped guide rod 202 penetrating the guide sleeve 212 is provided on the bottom side of the support frame 20.

[0038] In order to maintain the stability of the buoy 29 after installation, a rectangular connecting frame 28 is also included, and the four corner sides of the rectangular connecting frame 28 are fixedly connected to a buoy 29; and at least two through holes are set at the bottom of the buoy 29, and the adjacent buoys 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 buoys 29.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Lead-acid battery production wastewater treatment system, characterized by: The invention comprises a neutralization sedimentation tank, wherein a delivery device (2) for delivering alkaline substances into a water body of the neutralization sedimentation tank is arranged in the neutralization sedimentation tank, and a conveying device (1) arranged on a bank and used for conveying the alkaline substances into the delivery device (2); the delivery device (2) comprises a first vertical pipe (21) connected to the conveying device (1), the bottom end of the first vertical pipe (21) is connected to a bell mouth A (22), a convex edge (23) partially inserted below the liquid surface is arranged at the end of the bell mouth A (22), and a plurality of openings (221) are arranged on the bell mouth A (22); An annular electromagnet (24) is arranged on the outer peripheral side wall of the first vertical tube (21); a sleeve (26) movable along the axial direction of the first vertical tube (21) is sleeved on the outer side of the first vertical tube (21); an annular magnet (25) is arranged on the top of the sleeve (26); and a bell mouth B (27) shielding the bell mouth A (22) is arranged at the bottom end of the sleeve (26); When the annular electromagnet (24) is energized, the annular electromagnet (24) and the annular magnet (25) repel each other, and at this time, the bell mouth B (27) abuts against the outer wall of the bell mouth A (22); When the annular electromagnet (24) is powered off, the annular electromagnet (24) and the annular magnet (25) attract each other, and at this time, a gap exists between the bell mouth B (27) and the bell mouth A (22).

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

3. A lead-acid battery production wastewater treatment system according to claim 1, characterized in that: At least three telescopic rods (13) are arranged on the outer peripheral side wall of the bottom end of the second vertical tube (12), and balls rolling along the inside of the first vertical tube (21) are embedded at the ends of the telescopic rods (13).

4. A lead-acid battery production wastewater treatment system according to claim 2 or 3, characterized in that: A material discharge port (213) whose opening gradually decreases from top to bottom is connected to the inner wall of the first vertical tube (21) located directly below the second vertical tube (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.

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

6. A lead-acid battery production wastewater treatment system according to claim 1, characterized in that: Four U-shaped clamping blocks (292) are connected to the convex edge (23), one side of the U-shaped clamping block (292) is connected to a cross bar (291), and the end of the cross bar (291) is connected to a buoy (29).

7. A lead-acid battery production wastewater treatment system according to claim 6, characterized in that: It also includes a rectangular connection frame (28), the four corner sides of the rectangular connection frame (28) are all fixedly connected to a buoy (29).

8. A lead-acid battery production wastewater treatment system according to claim 6 or 7, characterized in that: At least two through holes are arranged at the bottom of the buoy (29), and two adjacent buoys (29) are connected via a pipeline, and the two ends of the pipeline are respectively connected to the through holes at the bottom of the two buoys (29).

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