A device for recovering waste battery soot

Abstract

This utility model relates to the field of waste battery recycling technology, specifically to a device for recycling waste battery black powder, comprising: a first vertical cylinder, a second vertical cylinder, a bent pipe, a first conical hopper, a second conical hopper, a first blowing component, a second blowing component, a collision rod, a black powder collecting component, and a dust collector. This utility model enables multiple collisions between electrode fragments and the collision rod, allowing the black powder to fully detach from the electrode fragments and enter the dust collector for collection and recovery. Simultaneously, the first and second conical hoppers can collect a small amount of black powder and discharge it into the hoppers for combined recycling. This utility model can further process the screened electrode fragments, removing and recovering the black powder remaining on the electrode surface, thus improving the black powder recovery rate.

Description

Technical Field

[0001] This utility model relates to the field of waste battery recycling technology, specifically to a device for recycling waste battery black powder. Background Technology

[0002] Waste batteries contain heavy metals (such as mercury, cadmium, and lead) and harmful chemicals (such as acids and alkalis). Improper disposal can cause serious pollution to soil and water bodies. Recycling can effectively reduce the harm of these substances to the environment, protect natural ecosystems, and maintain ecological balance. At the same time, waste batteries contain various valuable metals and other materials, such as zinc casings, graphite carbon rods, manganese powder, and rare metals such as nickel and cobalt. Recycling and reuse can save significant amounts of natural resources and reduce the cost and environmental impact of raw material extraction.

[0003] Waste battery black powder is a powdery substance produced after waste lithium-ion batteries undergo discharge, dismantling, crushing and heat treatment. It is mainly composed of metallic elements such as nickel, cobalt, manganese and lithium, and appears black or grayish-black. Waste battery black powder is an industrial intermediate product that has both resource value and environmental risks. Efficient recycling technology (such as pyrolysis-sorting-wet combined process) is the key to realizing its resource utilization and harmlessness.

[0004] The process of recycling waste battery black powder mainly includes the following key steps:

[0005] (1) Pre-treatment and dismantling: Waste batteries are sorted and tested (remaining power, voltage and other parameters), and discharged after screening to ensure safety. The outer shell is dismantled by a robotic arm or automated equipment to separate the positive and negative electrode plates, separator and other components, and the electrode plates are initially crushed to smaller sizes.

[0006] (2) Crushing and pyrolysis: Heating to 400℃-650℃ in an oxygen-free or micro-oxygen environment decomposes the electrolyte, adhesive and other organic matter, causing the black powder to fall off the electrode fragments such as copper and aluminum foil.

[0007] (3) Screening: Magnetic metals such as iron and nickel are separated by magnetic separation, and electrode plates and black powder are then separated by air classification or gravity separation.

[0008] The technical defect of the above process is that, in the screening and sieving stage of step (3), the black powder attached to the electrode sheet cannot be fully removed, resulting in some black powder remaining on the surface of the electrode fragments, so that the recovery rate of black powder is only about 90%. Utility Model Content

[0009] In response to the technical problem that some black powder remains on the surface of the electrode sheet during the screening stage in the existing waste battery black powder recycling process, resulting in a low black powder recovery rate, this utility model provides a waste battery black powder recycling device that can reprocess the screened electrode fragments to remove the black powder remaining on the surface of the electrode sheet and recycle it, thereby improving the black powder recovery rate.

[0010] The technical solution adopted in this utility model is as follows:

[0011] A device for recycling waste battery black powder includes:

[0012] The first vertical tube and the second vertical tube have openings at both the top and bottom ends;

[0013] The bent pipe has two ends connected to the upper openings of the first vertical cylinder and the second vertical cylinder, respectively.

[0014] A first conical hopper is disposed below the first vertical cylinder, and the upper end of the first conical hopper is connected to the lower end opening of the first vertical cylinder. A first filter plate is installed between the first conical hopper and the first vertical cylinder.

[0015] The second conical hopper is located below the second vertical cylinder, and the upper end of the second conical hopper is connected to the lower end opening of the second vertical cylinder. A second filter plate is installed between the second conical hopper and the second vertical cylinder.

[0016] The first jetting element is disposed on the upper surface of the first filter plate for blowing gas upward. The first jetting element is connected to the first blower through the first air inlet pipe.

[0017] The second jetting element is disposed on the upper surface of the second filter plate for blowing gas upward. The second jetting element is connected to the second blower through the second air inlet pipe.

[0018] At least one short impact rod is provided, with both ends connected to the inner wall of the bend.

[0019] The black powder collection device is located on the inner wall of the curved tube above the collision short rod. The black powder collection device includes a sealed shell with a cavity inside. The bottom plate of the cavity is a filter screen with mesh.

[0020] The dust collector is located outside the bend. The input end of the dust collector is connected to the inner cavity of the housing through the air outlet pipe, and an air pump is installed on the air outlet pipe.

[0021] It should be further noted that one end of the bend is connected to the first vertical cylinder via a first flange, and the other end of the bend is connected to the second vertical cylinder via a second flange. The purpose of using flanges for connection and fixation is to facilitate easy connection and to promote the disassembly, assembly, and maintenance of this invention.

[0022] It should be further noted that the device also includes a feeding device and a discharging device. The feeding device includes a single feed inlet mounted on the outer shell of the second vertical cylinder. The discharging device includes a first discharge port and a second discharge port. The first discharge port is located on the outer shell of the first vertical cylinder and is flush with the first filter plate, and the second discharge port is located on the outer shell of the second vertical cylinder and is flush with the second filter plate. During use, electrode fragments are fed in through the feed inlet. After the recycling operation is completed, the fragments are discharged through the first discharge port and / or the second discharge port.

[0023] It should be further explained that the two ends of the impact rod are connected to the inner wall of the bend via springs. This serves to create an elastic connection between the impact rod and the inner wall of the bend, increasing the range of motion of the impact rod during impact, thereby increasing the impact force and improving the separation of black powder.

[0024] It should be further explained that the two vertical collision rods form a group, and adjacent groups of collision rods are staggered. This is to increase the collision area between the electrode fragments and the collision rods, thereby improving the separation effect of the black powder.

[0025] It should be further noted that both the first and second jet components have the following structure: they include at least two concentrically arranged circular jet pipes, adjacent circular jet pipes are connected by at least one jet branch pipe, the circular jet pipes are provided with several upward-facing jet holes, and the outermost circular jet pipe is connected to the second blower through a second air inlet pipe. The purpose is that the multiple circular jet pipes are arranged in a concentric circle design to increase the jetting area.

[0026] It should be further noted that the upper surface of the black powder collector is tightly fitted and fixed to the curved pipe. This serves to cover the impact rod below, thereby increasing the gas collection area.

[0027] It should be further noted that the dust collector is a pulse-jet baghouse dust collector. Pulse-jet baghouse dust collectors can capture black dust from the gas and simultaneously clean the dust through pulse action, making them simple to operate.

[0028] The beneficial effects of this invention are as follows: This invention can fully separate and recover the black powder remaining on the surface of the electrode fragments after screening, and can increase the recovery rate of black powder to 97%. Attached Figure Description

[0029] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1This is a schematic diagram of the structure of Embodiment 1 of the present utility model.

[0031] Figure 2 This is a specific embodiment of the present utility model. Figure 1 AA section view.

[0032] Figure 3 This is a top view of the second spray nozzle according to a specific embodiment of this utility model.

[0033] Figure 4 This is a schematic diagram of the black powder collecting component in a specific embodiment of this utility model.

[0034] In the diagram, 1-Second blower, 2-Second air inlet pipe, 3-Second discharge port, 4-Second filter plate, 5-Second conical hopper, 6-Second spray component, 61-Circular jet pipe, 62-Jet branch pipe, 63-Jet hole, 7-Second vertical cylinder, 8-Feed inlet, 9-Second flange, 10-Bend pipe, 11-Collision rod, 12-Black powder collector, 121-Shell, 122-Cavity, 123-Filter screen, 13-Air outlet pipe, 14-Air pump, 15-Dust collector, 16-First vertical cylinder, 17-First blower, 18-First air inlet pipe, 19-First discharge port, 20-First filter plate, 21-First spray component, 22-First conical hopper, 23-Spring, 24-First flange. Detailed Implementation

[0035] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0036] Example 1

[0037] Combination Figure 1 This utility model provides a device for recycling waste battery black powder, comprising:

[0038] The first vertical tube 16 and the second vertical tube 7 are open at both the top and bottom ends;

[0039] The elbow 10 is connected at both ends to the upper openings of the first vertical cylinder 16 and the second vertical cylinder 7, respectively.

[0040] The first conical hopper 22 is located below the first vertical cylinder 16, and the upper end of the first conical hopper 22 is connected to the lower end opening of the first vertical cylinder 16. A first filter plate 20 is installed between the first conical hopper 22 and the first vertical cylinder 16.

[0041] The second conical hopper 5 is located below the second vertical cylinder 7, and the upper end of the second conical hopper 5 is connected to the lower end opening of the second vertical cylinder 7. A second filter plate 4 is installed between the second conical hopper 5 and the second vertical cylinder 7.

[0042] The first blowing element 21 is disposed on the upper surface of the first filter plate 20 for blowing gas upward. The first blowing element 21 is connected to the first blower 17 through the first air inlet pipe 18.

[0043] The second jetting element 6 is disposed on the upper surface of the second filter plate 4 for blowing gas upward. The second jetting element 6 is connected to the second blower 1 through the second air inlet pipe 2.

[0044] At least one short collision rod 11 is provided, and both ends are connected to the inner wall of the bend 10.

[0045] Black powder collector 12 is installed on the inner wall of the curved tube 10 above the collision short rod 11, combined with Figure 4 The black powder collection component 12 includes a sealed shell 121, with a cavity 122 formed inside the shell 121. The bottom plate of the cavity 122 is a filter screen 123 with mesh. The upper end face of the black powder collection component 12 is tightly fitted and fixed to the bent pipe 10.

[0046] The dust collector 15 is located outside the bend 10. The input end of the dust collector 15 is connected to the cavity 122 inside the housing 121 through the air outlet pipe 13. An air pump 14 is provided on the air outlet pipe 13. The dust collector 15 is a pulse bag dust collector.

[0047] To facilitate disassembly, assembly, and maintenance of this utility model, one end of the bent pipe 10 is connected to the first vertical cylinder 16 via the first flange 24, and the other end of the bent pipe 10 is connected to the second vertical cylinder 7 via the second flange 9. The connection and fixation are made through the flanges, which is convenient and easy to install.

[0048] This utility model also includes a feeding device and a discharging device. The feeding device includes a feeding port 8, and there is one feeding port 8 installed on the outer shell of the second vertical cylinder 7. The discharging device includes a first discharging port 19 and a second discharging port 3. The first discharging port 19 is disposed on the outer shell of the first vertical cylinder 16 and is flush with the first filter plate 20. The second discharging port 3 is disposed on the outer shell of the second vertical cylinder 7 and is flush with the second filter plate 4.

[0049] Combination Figure 2 To increase the sway range of the impact rod during collision, the two ends of the impact rod 11 are connected to the inner wall of the bent tube 10 via springs 23, forming an elastic connection between the impact rod 11 and the inner wall of the bent tube 10, thereby increasing the impact force and improving the separation effect of black powder. Simultaneously, to increase the collision area and improve the collision effect, [further details are needed]. Figure 1 In this utility model, two vertical collision short rods 11 form a group, and the collision short rods 11 of adjacent groups are staggered.

[0050] The first jetting component 21 and the second jetting component 6 of this utility model have the same structure, combined with Figure 3 Taking the second jetting component 6 as an example, the second jetting component 6 includes at least two concentric circular jet pipes 61. Adjacent circular jet pipes 61 are connected by four cross-shaped jet branch pipes 62. The circular jet pipes 61 are provided with several upward-facing jet holes 63. The outermost circular jet pipe 61 is connected to the second blower 1 through the second air intake pipe 2.

[0051] The method of using this utility model is as follows: Screened electrode fragments are fed into the feed inlet 8 and stored in the second vertical cylinder 7. The air pump 14 and the second blower 1 are started. The second blower 1 sprays high-speed gas, which is then sprayed upwards through the second spray nozzle 6. The electrode fragments move upwards to the bend in the tube 10 and collide with the short rod 11 inside the bend under high-speed conditions. The residual black powder on the surface of the electrode fragments separates under the impact. At this time, due to the action of the air pump 14, a negative pressure is formed in the impact zone, and smaller black powder particles pass through the filter screen 123 into the housing 121, where they are then further processed by the air pump. The electrode fragments are drawn out to the dust collector 15 for collection and then discharged for recycling. This completes one impact process. After the electrode fragments cross the bend 10, they enter the first vertical cylinder 16 for storage. At this point, the second blower 1 is turned off, and the first blower 17 is turned on. The first blower 17 sprays high-speed gas, which is ejected upwards through the first spray nozzle 21. The electrode fragments then move back into the bend 10 for collision. This process is repeated. By starting and stopping the first blower 17 and the second blower 1, multiple collisions between the electrode fragments and the collision rod 11 are achieved, ensuring that the black powder is fully detached from the electrode fragments. After the above production is completed, the discharge ports of the first conical hopper 22 and the second conical hopper 5 are opened to discharge and recycle the small amount of black powder remaining in the hoppers. The first discharge port 19 and / or the second discharge port 3 are opened to discharge the electrode fragments.

[0052] After further recycling using the device of this utility model, the recovery rate of black powder can be increased to about 97%.

[0053] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for recycling waste battery black powder, characterized in that, include: The first vertical tube and the second vertical tube have openings at both the top and bottom ends; The bent pipe has two ends connected to the upper openings of the first vertical cylinder and the second vertical cylinder, respectively. A first conical hopper is disposed below the first vertical cylinder, and the upper end of the first conical hopper is connected to the lower end opening of the first vertical cylinder. A first filter plate is installed between the first conical hopper and the first vertical cylinder. The second conical hopper is located below the second vertical cylinder, and the upper end of the second conical hopper is connected to the lower end opening of the second vertical cylinder. A second filter plate is installed between the second conical hopper and the second vertical cylinder. The first jetting element is disposed on the upper surface of the first filter plate for blowing gas upward. The first jetting element is connected to the first blower through the first air inlet pipe. The second jetting element is disposed on the upper surface of the second filter plate for blowing gas upward. The second jetting element is connected to the second blower through the second air inlet pipe. At least one short impact rod is provided, with both ends connected to the inner wall of the bend. The black powder collection device is located on the inner wall of the curved tube above the collision short rod. The black powder collection device includes a sealed shell with a cavity inside. The bottom plate of the cavity is a filter screen with mesh. The dust collector is located outside the bend. The input end of the dust collector is connected to the inner cavity of the housing through the air outlet pipe, and an air pump is installed on the air outlet pipe.

2. The device for recovering waste battery soot according to claim 1, wherein One end of the bend is connected to the first vertical cylinder via a first flange, and the other end of the bend is connected to the second vertical cylinder via a second flange.

3. The device for recovering waste battery soot according to claim 1, wherein It also includes a feeding device and a discharging device. The feeding device includes a feeding port, which is one inlet and installed on the outer shell of the second vertical cylinder. The discharging device includes a first discharging port and a second discharging port. The first discharging port is located on the outer shell of the first vertical cylinder and is flush with the first filter plate. The second discharging port is located on the outer shell of the second vertical cylinder and is flush with the second filter plate.

4. The device for recovering waste battery soot according to claim 1, wherein The two ends of the collision rod are connected to the inner wall of the curved tube by springs.

5. The device for recovering waste battery soot according to claim 1 or 4, wherein Two vertical collision short bars form a group, and the collision short bars of adjacent groups are staggered.

6. The device for recovering waste battery soot according to claim 1, wherein Both the first and second jet components have the following structure: including at least two concentric circular jet pipes, adjacent circular jet pipes are connected by at least one jet branch pipe, the circular jet pipes are provided with several upward-facing jet holes, and the outermost circular jet pipe is connected to the second blower through the second air inlet pipe.

7. The device for recovering waste battery soot according to claim 1, wherein The upper surface of the black powder collection component is tightly fitted and fixed to the curved pipe.

8. The device for recovering waste battery soot according to claim 1, wherein The dust collector is a pulse jet bag filter.

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