Lead plaster desulfurization reaction tank for lead-acid storage battery

Abstract

The utility model relates to the technical field of lead-acid battery recovery, in particular to a lead plaster desulfurization reaction tank for a lead-acid storage battery. Comprising a tank body, a stirring assembly is arranged in the tank body, the upper end and the lower end of the tank body are fixedly communicated with an inlet pipe and an outlet pipe respectively, the inlet pipe and the outlet pipe are communicated with a tubular reactor through a pipeline, a liquid pump is installed on the pipeline, and the outlet end of the inlet pipe is communicated with a filtering and crushing assembly. According to the utility model, large-particle lead sulfate in materials can be filtered and intercepted, and the desulfurization rate of lead plaster can be improved. The filtered and intercepted large-particle lead plaster can be extruded and crushed by the top plate and the turntable, so that the desulfurization efficiency of the lead plaster can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lead-acid battery recycling, in particular to a lead paste desulfurization reaction tank for lead-acid batteries. Background Art

[0002] Judging from the current overall development situation, whether in developed or developing countries, the recycling management of waste lead-acid batteries has gradually entered the stage of orderly management, the public's environmental awareness has gradually increased, the government has gradually attached importance to it, and has formulated relatively complete policies, regulations or standards in combination with the characteristics of each country, which are effective. A relatively complete system has also been established in the specific waste battery recycling organization, and a benign "closed-loop" cycle has gradually formed between users, recyclers, lead recycling plants, and battery plants. However, the production of recycled lead abroad is concentrated in the hands of a few large companies, and the output of recycled lead metal in developed countries exceeds the output of primary lead metal. In developed countries such as the United States, Europe, and Japan, the production, sales, use, and recycling and reuse of lead-acid batteries have formed an extremely strict and standardized legal management system and have formed industrialization.

[0003] The lead paste collected after disassembly and sorting is a mixture of lead compounds, including 55-70% PbSO4, 15-25% PbO2, 12-15% metallic lead, and a sulfur content of about 5-6%. The desulfurization conversion process is the process of converting PbSO4 into other compounds that are easier to reduce. The commonly used desulfurizers are soluble carbonates or strong alkalis. Based on the current market price and easy purchase of chemical raw materials, the desulfurizer selected in this study is sodium carbonate, which is used to convert PbSO4 into PbCO3. PbO2 and Pb in the lead paste do not participate in the desulfurization reaction. The particle size of the lead paste is an important process factor affecting the carbonate conversion of the lead paste. The existing production process is to mix the recovered lead paste and the desulfurizer in a reaction tank in advance, and then circulate the mixed material in the reaction tank and the tubular reactor to achieve the desulfurization of the lead paste. However, there are larger particles of lead sulfate in the material, so the desulfurization rate of the lead paste will be affected. In order to solve this problem, a filtering device is set before the material enters the reaction tank from the tubular reactor. The filtering device is used to intercept the larger lead sulfate particles, and then the intercepted lead sulfate particles are taken out and processed centrally.

[0004] In the prior art, a patent document with application number CN201720915909.9 and titled "A Lead Paste Desulfurization Reactor for Lead Acid Batteries" discloses a lead paste desulfurization reactor for lead acid batteries that can break the lead carbonate encapsulation effect. The stirring device in the desulfurization reaction tube is an up and down ladder structure, which can make the lead paste and the desulfurizer fully and evenly contact, so that the desulfurization reaction is more complete. The desulfurization reaction surface renewal device allows the slurry in the reaction tank to fully rub, collide, and shear in the pipeline mixer to achieve the effect of surface renewal, thereby breaking the lead carbonate encapsulation effect. If this method is used directly to crush lead sulfate with larger particles, the material needs to flow through the pipeline mixer quickly, so high pressure needs to be applied to the material, and there is a greater risk of leakage during the working process.

[0005] The patent document with application number CN201820955130.4 and titled "A Lead Paste Desulfurization Reactor for Lead Acid Batteries" discloses a lead-acid battery lead paste desulfurization reactor that drives a reduction motor to move up and down through an electric telescopic rod and a mounting plate, thereby achieving up and down movement of a stirring blade, breaking the lead carbonate wrapping effect, allowing the desulfurizer to fully contact and react with lead sulfate, and improving the desulfurization rate of lead sulfate. The solution using this patent relies on the stirring blade that can move up and down during the rotation process to crush the larger particles of lead sulfate, which is inefficient. Utility Model Content

[0006] The technical problem to be solved by the utility model is a lead-acid battery lead paste desulfurization reaction tank which can intercept lead sulfate with larger particles and can timely crush the intercepted lead sulfate.

[0007] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0008] A lead paste desulfurization reaction tank for a lead-acid battery comprises a tank body, a stirring assembly is arranged in the tank body, an inlet pipe and an outlet pipe are fixedly connected at the upper end and the lower end of the tank body respectively, the inlet pipe and the outlet pipe are connected with a tubular reactor through a pipeline, a liquid pump is installed on the pipeline, and the outlet end of the inlet pipe is connected with a filtering and crushing assembly, the filtering and crushing assembly comprises a cylinder body fixed on the side wall of the tank body, the inlet pipe is connected with the cylinder body, an inner plate is fixed at the end of the cylinder body in the tank body, a top plate is elastically slidably connected with the axial direction of the cylinder body on the inner plate, the top plate is slidingly and sealingly connected with the cylinder body, an outer ring is fixed at the end of the cylinder body outside the tank body, a driving frame is arranged on the outer ring, a driving assembly is fixed on the driving frame, the driving frame can drive the driving assembly to move in the axial direction of the cylinder body, a rotating disk is installed on the driving assembly, the rotating disk is movably and sealingly connected with the cylinder body, the rotating disk and the top plate are located in the cylinder body between the inner plate and the outer ring, a plurality of slots are opened on the cylinder body between the rotating disk and the top plate, an arc-shaped filter screen is fixed in the slot, and the inner edge of the filter screen is flush with the inner edge of the cylinder body.

[0009] Specifically, an inlet hole is provided on the cylinder between the rotating disk and the top plate, and the inlet hole is fixedly connected with the outlet of the inlet pipe.

[0010] Specifically, a plurality of slide bars are fixed to one end of the top plate away from the turntable. The slide bars penetrate the inner plate and are slidably connected to the inner plate. A spring is sleeved on the slide bars between the inner plate and the top plate.

[0011] Specifically, the driving frame includes a moving plate located in the cylinder, a plurality of telescopic rods are fixed on the moving plate, and the telescopic rods are fixedly connected to the outer ring; the driving assembly includes a motor fixed on the moving plate, and the output shaft of the motor is fixedly connected to the turntable concentrically.

[0012] Specifically, a plurality of polished rods are fixed on the movable plate, the polished rods penetrate the outer ring, and the polished rods are slidably connected to the outer ring.

[0013] Specifically, the turntable, top plate, inner plate, outer ring and cylinder are concentrically arranged.

[0014] Specifically, patterns are processed on the opposite end surfaces of the turntable and the top plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model can filter and intercept large particles of lead sulfate in the material, and can improve the desulfurization rate of lead paste.

[0017] 2. The large particles of lead paste that are filtered and intercepted can be squeezed and crushed by the top plate and the turntable, which can improve the desulfurization efficiency of the lead paste.

[0018] 3. The top plate is elastically slidably connected to the inner plate. When the turntable and the top plate squeeze and crush large particles of lead sulfate, the spring can buffer the top plate, which can prevent the turntable and the top plate from being damaged by large pressure. At the same time, it can prevent the turntable and the top plate from being stuck due to large pressure, ensuring that the motor can drive the turntable to rotate continuously and crush large particles of lead sulfate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the reaction tank.

[0020] Figure 2 A schematic diagram of the cylinder.

[0021] Figure 3 This is a bottom view of the cylinder.

[0022] Figure 4 for Figure 3 A-axis section view.

[0023] Figure 5 It is the front view of the cylinder.

[0024] Figure 6 for Figure 5 B-section view in the figure.

[0025] The names of the parts in the attached drawings are:

[0026] 1 Tank

[0027] 2 Stirring rod

[0028] 3 Motor

[0029] 4 Inlet pipe

[0030] 5 Tubular Reactor

[0031] 6 Liquid Pump

[0032] 7 Outlet

[0033] 8 Cylinder

[0034] 9 Outer Ring

[0035] 10 Bare

[0036] 11. Filter

[0037] 12 Sliders

[0038] 13 Inner plate

[0039] 14 Spring

[0040] 15 Top Plate

[0041] 16 Turntable

[0042] 17 Mobile board

[0043] 18 Motor

[0044] 19 Telescopic rod

[0045] 20 Entrance hole

[0046] 21. Material tube

[0047] 22 Retaining ring. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0049] Example 1: Reference Figure 1-Figure 6 As shown, a lead paste desulfurization reaction tank for lead-acid batteries comprises a tank body 1, wherein the upper end and the lower end of the tank body 1 are fixedly connected with a material pipe 21, and a valve is installed on the material pipe 21.

[0050] A stirring assembly is arranged in the tank body 1 .

[0051] The stirring assembly includes a stirring rod 2 rotatably arranged in the tank body 1, and a motor 3 is fixed at the upper end of the tank body 1, and the output shaft of the motor 3 is fixedly connected to the stirring rod 2. After the desulfurizer and the lead paste are added into the tank body 1 through the material pipe 21 above, the motor 3 is started, and the motor 3 drives the stirring rod 2 to rotate, so that the desulfurizer and the lead paste can be mixed and reacted to form a material.

[0052] The upper end and the lower end of the tank body 1 are respectively fixedly connected with an inlet pipe 4 and an outlet pipe 7, and the inlet pipe 4 and the outlet pipe 7 are connected with a tubular reactor 5 through a pipeline, and a liquid pump 6 is installed on the pipeline.

[0053] The liquid pump 6 is started, and the material in the tank body 1 can circulate in the tank body 1 and the tubular reactor 5. When the material flows through the tubular reactor 5, the lead sulfate in the lead paste fully contacts and reacts with the desulfurizing agent, and the desulfurization rate is greatly improved.

[0054] The outlet end of the inlet pipe 4 is connected to the filter crushing assembly, which includes a cylinder 8 fixed on the side wall of the tank body 1. The inlet pipe 4 is connected to the cylinder 8. An inner plate 13 is fixed to the end of the cylinder 8 in the tank body 1. A top plate 15 is elastically slidably connected to the inner plate 13 along the axial direction of the cylinder 8. Specifically, a plurality of slide bars 12 are fixed to the end of the top plate 15 away from the rotating disk 16. The slide bars 12 penetrate the inner plate 13 and are slidably connected to the inner plate 13. A spring 14 is sleeved on the slide bars 12 between the inner plate 13 and the top plate 15. The top plate 15 is slidably and sealedly connected to the cylinder 8.

[0055] An outer ring 9 is fixed to the end of the cylinder 8 outside the tank body 1, and a driving frame is arranged on the outer ring 9. A driving assembly is fixed on the driving frame. The driving frame can drive the driving assembly to move in the cylinder 8 along the axial direction of the cylinder 8. A turntable 16 is installed on the driving assembly, and the turntable 16 is movably and sealedly connected to the cylinder 8. Specifically, the driving frame includes a moving plate 17 located in the cylinder 8, and a plurality of telescopic rods 19 are fixed on the moving plate 17, and the telescopic rods 19 are fixedly connected to the outer ring 9. A plurality of light rods 10 are fixed on the moving plate 17, and the light rods 10 pass through the outer ring 9, and the light rods 10 are slidably connected to the outer ring 9. The driving assembly includes a motor 18 fixed on the moving plate 17, and the output shaft of the motor 18 is fixedly connected to the turntable 16 concentrically.

[0056] The rotating disk 16 and the top plate 15 are located in the cylinder 8 between the inner plate 13 and the outer ring 9. The rotating disk 16, the top plate 15, the inner plate 13, the outer ring 9 and the cylinder 8 are arranged concentrically. An inlet hole 20 is opened on the cylinder 8 between the rotating disk 16 and the top plate 15, and the inlet hole 20 is fixedly connected to the outlet of the inlet pipe 4.

[0057] A plurality of slots are provided on the cylinder 8 between the rotating disk 16 and the top plate 15 , and arc-shaped filter screens 11 are fixed in the slots. The inner edge of the filter screen 11 is flush with the inner edge of the cylinder 8 .

[0058] The material discharged from the tubular reactor 5 enters the cylinder 8 through the inlet pipe 4, small particles of lead sulfate are discharged into the tank 1 through the filter screen 11, and large particles of lead sulfate remain in the cylinder 8 between the top plate 15 and the rotating disk 16.

[0059] When it is necessary to crush the large particles of lead sulfate in the cylinder 8, turn off the liquid pump 6. Then start the telescopic rod 19 and the motor 18. The telescopic rod 19 can drive the moving plate 17, the motor 18 and the turntable 16 to approach the top plate 15 along the axial direction of the cylinder 8. At the same time, the motor 18 can drive the turntable 16 to rotate. When the turntable 16 approaches the top plate 15, the large particles of lead sulfate intercepted by the filter 11 can be pushed toward the top plate 15. When the large particles of lead sulfate are squeezed by the top plate 15 and the turntable 16, the rotating turntable 16 and the top plate 15 can crush the large particles of lead sulfate. Then the turntable 16 is restored, and the subsequent materials can carry the crushed lead sulfate through the filter 11 and enter the tank body 1 after entering the cylinder 8.

[0060] The top plate 15 is elastically slidably connected to the inner plate 13. When the rotating disk 16 and the top plate 15 squeeze and crush the large particles of lead sulfate, the spring 14 can play a buffering role on the top plate 15, which can prevent the rotating disk 16 and the top plate 15 from being damaged by a large pressure. At the same time, it can prevent the rotating disk 16 and the top plate 15 from being stuck due to a large pressure, and ensure that the motor 18 can drive the rotating disk 16 to rotate continuously and crush the large particles of lead sulfate.

[0061] After the desulfurization of the lead paste is completed, it can be discharged through the material pipe 21 at the lower end of the tank body 1.

[0062] Embodiment 2: Based on Embodiment 1, refer to Figure 3 and Figure 5 As shown, the polished rod 10 outside the cylinder 8 is fixedly connected via a fixing ring 22 .

[0063] By setting the fixing ring 22, when the telescopic rod 19 drives the movable plate 17, the motor 18 and the turntable 16 to move in the axial direction of the cylinder 8, the strength of the light rod 10 can be improved, thereby ensuring the stability of the movable plate 17, the motor 18 and the turntable 16 moving in the axial direction of the cylinder 8.

[0064] Embodiment 3: Based on Embodiment 1, patterns are processed on the opposite end surfaces of the rotating disk 16 and the top plate 15. In the process of crushing large particles of lead sulfate using the rotating disk 16 and the top plate 15, the patterns on the opposite end surfaces of the rotating disk 16 and the top plate 15 can improve the crushing efficiency of large particles of lead sulfate.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lead-acid battery lead paste desulfurization reaction tank, comprising a tank body (1), a stirring assembly is arranged in the tank body (1), an inlet pipe (4) and an outlet pipe (7) are fixedly connected at the upper end and the lower end of the tank body (1), respectively, the inlet pipe (4) and the outlet pipe (7) are connected to a tubular reactor (5) through a pipeline, and a liquid pump (6) is installed on the pipeline. It is characterized in that The outlet end of the inlet pipe (4) is communicated with the filter crushing assembly, which comprises a cylinder (8) fixed on the side wall of the tank body (1), the inlet pipe (4) is communicated with the cylinder (8), an inner plate (13) is fixed to the end of the cylinder (8) in the tank body (1), a top plate (15) is elastically slidably connected to the inner plate (13) along the axial direction of the cylinder (8), the top plate (15) is slidably and sealingly connected to the cylinder (8), an outer ring (9) is fixed to the end of the cylinder (8) outside the tank body (1), a drive frame is arranged on the outer ring (9), and a drive frame is arranged on the drive frame. A driving assembly is fixed, and the driving frame can drive the driving assembly to move in the cylinder (8) along the axial direction of the cylinder (8). A rotating disk (16) is installed on the driving assembly, and the rotating disk (16) is movably sealed with the cylinder (8). The rotating disk (16) and the top plate (15) are located in the cylinder (8) between the inner plate (13) and the outer ring (9). A plurality of slots are opened on the cylinder (8) between the rotating disk (16) and the top plate (15), and an arc-shaped filter screen (11) is fixed in the slot, and the inner edge of the filter screen (11) is flush with the inner edge of the cylinder (8).

2. A lead paste desulfurization reaction tank for lead-acid batteries according to claim 1, It is characterized in that An inlet hole (20) is provided on the cylinder (8) between the rotating disk (16) and the top plate (15), and the inlet hole (20) is fixedly connected to the outlet of the inlet pipe (4).

3. A lead paste desulfurization reaction tank for lead-acid batteries according to claim 1, It is characterized in that A plurality of slide bars (12) are fixed to one end of the top plate (15) away from the rotating disk (16); the slide bars (12) penetrate the inner plate (13); the slide bars (12) are slidably connected to the inner plate (13); and a spring (14) is sleeved on the slide bars (12) between the inner plate (13) and the top plate (15).

4. A lead paste desulfurization reaction tank for lead-acid batteries according to claim 1, It is characterized in that The driving frame comprises a moving plate (17) located in the cylinder (8), a plurality of telescopic rods (19) are fixed on the moving plate (17), and the telescopic rods (19) are fixedly connected to the outer ring (9); the driving assembly comprises a motor (18) fixed on the moving plate (17), and the output shaft of the motor (18) is fixedly connected to the rotating disk (16) concentrically.

5. A lead paste desulfurization reaction tank for lead-acid batteries according to claim 4, It is characterized in that A plurality of polished rods (10) are fixed on the movable plate (17), the polished rods (10) penetrate the outer ring (9), and the polished rods (10) are slidably connected to the outer ring (9).

6. A lead paste desulfurization reaction tank for lead-acid batteries according to claim 1, It is characterized in that The rotating disk (16), the top plate (15), the inner plate (13), the outer ring (9) and the cylinder (8) are arranged concentrically.

7. A lead paste desulfurization reaction tank for lead-acid batteries according to claim 1, It is characterized in that The opposite end surfaces of the rotating disk (16) and the top plate (15) are processed with patterns.

8. A lead paste desulfurization reaction tank for lead-acid batteries according to claim 1, It is characterized in that The stirring assembly comprises a stirring rod (2) rotatably arranged in a tank body (1); a motor (3) is fixed to the upper end of the tank body (1); and an output shaft of the motor (3) is fixedly connected to the stirring rod (2).

9. A lead paste desulfurization reaction tank for lead-acid batteries according to claim 1, It is characterized in that The upper end and the lower end of the tank body (1) are both fixedly connected to a material pipe (21), and a valve is installed on the material pipe (21).

10. A lead paste desulfurization reaction tank for lead-acid batteries according to claim 5, It is characterized in that The polished rod (10) outside the cylinder (8) is fixedly connected via a fixing ring (22).

Images