Lithium battery waste settling and drying device

Abstract

The utility model discloses a kind of lithium battery waste sedimentation drying devices, it is related to lithium battery waste processing technical field, to solve the technical problem of the poor drying effect of existing lithium battery waste sedimentation drying device, including drying cabinet, the drying cabinet includes upper box shell, the utility model is driven to the bearing frame along closed path circulation displacement by circulation conveying component, lithium battery waste in several macromolecular screen components can contact hot air in turn, reduce the risk of partial high temperature formed due to material accumulation, cause combustion even explosion, and the air duct of "U" shape can be cooperated with the screen basin and screen cover of the outward bulge of center line, material is blown upward by bottom hot air, make material suspended, under the airflow impact, naturally dispersed, reduce caking, without mechanical stirring component, reduce metal friction, after far from air outlet, material at edge is also under the action of its own gravity to the center line lower convex place sliding and gathering, facilitate the next blowing work to carry out.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery waste treatment technology, and more specifically, to a lithium battery waste settling and drying device. Background Technology

[0002] In today's society, with the rapid development of technology, lithium-ion batteries have become an outstanding representative of new high-energy chemical power sources due to their superior advantages such as high energy density, high output power, long charge-discharge life, no pollution, wide operating temperature range, and low self-discharge. However, in the lithium battery production process, waste is inevitably generated in the mixing and coating of electrode materials. If this waste is directly discharged, it will not only cause serious waste of resources but may also cause great harm to the environment. The sedimentation and drying of lithium battery waste is a key step in the lithium battery recycling process. Its core purpose is to remove moisture from the waste, achieve solid-liquid separation, and provide stable and clean pre-treated materials for subsequent metal extraction or resource utilization.

[0003] Existing lithium battery waste settling and drying devices are divided into box-type settling and drying devices, nested settling and drying devices, cylindrical settling and drying devices, and drying screen-type drying devices. Among them, the box-type settling and drying device includes a drying box, a settling tank, and a gas collection hood. The settling tank is used to achieve rapid and efficient collection of lithium battery waste. The hot air pipes in the drying box are used to dry the moisture in the settling tank. The waste gas generated during the drying process is collected by the gas collection hood.

[0004] Existing lithium battery waste settling and drying devices, such as box-type settling and drying devices, rely on hot air circulation or direct heating with electric heating tubes during use. If the material accumulates or is not stirred sufficiently, the material may clump together during drying, easily forming local high temperatures, which could lead to combustion or even explosion. Stirring with a mixing device or using a rotating drum can easily cause the problem that "the friction between the metal screen and the metal debris in the material can easily generate sparks, which may cause an explosion if mixed with volatile flammable gases." In view of this, we propose a lithium battery waste settling and drying device. Utility Model Content

[0005] The purpose of this invention is to provide a lithium battery waste settling and drying device to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a drying box, the drying box including an upper box shell, a bottom box shell fixed to the bottom of the upper box shell, and an air duct with a "U" shape opened inside the bottom box shell;

[0007] The circulating conveying component includes a support frame, which is a plurality of which can be driven by a drive component. The support frame can maintain a horizontal state and move along a closed path in the vertical direction, with the lowest point of the closed path located at the air outlet at one end of a U-shaped air duct.

[0008] The polymer sieve assembly comprises several units and is disposed on the inner side wall of the support frame. It includes a sieve basin, and a sieve cover is provided on the top of the sieve basin. Both the sieve basin and the sieve cover have a hollow shell structure that protrudes outward from the center line.

[0009] As a further description of the above technical solution: the circulating conveying assembly also includes a circulating shell, inside which sprockets are installed. There are two sprockets arranged symmetrically, and a chain is meshed with the outer wall of each sprocket.

[0010] As a further description of the above technical solution: a groove that can match the chain track is opened on one side of the circulation shell, and a sliding member is slidably connected to the inner side wall of the groove. There are several sliding members, which are equidistantly arranged on the outer side wall of the chain along the chain track, and a support frame is installed at the end of the sliding member.

[0011] As a further description of the above technical solution: the power input end of the sprocket is connected to a drive component.

[0012] As a further description of the above technical solution: the air duct is U-shaped and has a drain outlet at its lowest end.

[0013] As a further description of the above technical solution: an exhaust pipe is installed on the top of the upper casing, and a hot air blower is installed at the air inlet at the other end of the air duct.

[0014] In the above technical solution, the lithium battery waste settling and drying device provided by this utility model has the following beneficial effects:

[0015] This invention uses a circulating conveyor assembly to drive several support frames to circulate along a closed path. The lithium battery waste in several polymer sieve assemblies can take turns contacting hot air, reducing the risk of localized high temperatures caused by material accumulation, which could lead to combustion or even explosion. The U-shaped air duct can cooperate with the screen basin and screen cover that bulge outward at the center line. Hot air from the bottom blows the material upward, suspending it and allowing it to disperse naturally under the impact of the airflow, reducing clumping. There are no mechanical stirring parts, reducing metal friction. After moving away from the air outlet, the material at the edge slides and gathers back towards the bulge at the center line under its own gravity, facilitating the next blowing operation. This solves the problem of poor drying effect in existing lithium battery waste settling and drying devices. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A cross-sectional structural schematic diagram provided for an embodiment of this utility model;

[0018] Figure 2 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the exploded structure provided for an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the polymer sieve assembly provided in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Drying oven; 2. Circulating conveyor assembly; 3. Polymer sieve assembly; 4. Drive assembly; 5. Exhaust gas pipe; 6. Hot air blower;

[0023] 101. Upper casing; 102. Lower casing; 103. Air duct;

[0024] 201. Circulating shell; 202. Sprocket; 203. Chain; 204. Sliding component; 205. Support frame;

[0025] 301. Sieve basin; 302. Sieve cover. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] Please see Figures 1-4 The present invention provides a technical solution: including a drying box 1, the drying box 1 including an upper box shell 101, a bottom box shell 102 fixed to the bottom of the upper box shell 101, and an air duct 103 opened inside the bottom box shell 102 and the air duct 103 is U-shaped.

[0028] In another embodiment of this utility model, the air duct 103 is U-shaped and has a drain outlet at its lowest end.

[0029] In another embodiment of the present invention, an exhaust pipe 5 is installed on the top of the upper casing 101, and a hot air blower 6 is installed at the air inlet at the other end of the air duct 103.

[0030] The drying chamber 1 is composed of an upper chamber shell 101 and a lower chamber shell 102 fixedly connected together. The lower chamber shell 102 has a U-shaped air duct 103 inside. The design of the air duct 103 ensures that the hot air forms a circulation path in the chamber, so that it can be blown to the lowest polymer sieve component 3 for drying. At the same time, the smooth curved surface structure of its arc corners avoids eddy current loss caused by right angle corners, and reduces frictional resistance along the way, which is more conducive to the retention of airflow energy.

[0031] To prevent water accumulation in the air duct 103 from affecting the flow of hot air, a drain outlet is provided at the lowest end of the "U"-shaped air duct 103 to promptly discharge condensate or liquid dripping from the material, allowing the settling and drying processes to proceed simultaneously.

[0032] The top of the upper casing 101 is equipped with an exhaust pipe 5, which is used to collect toxic gases generated during the drying process and can be directly connected to the existing external exhaust gas purification system; a hot air blower 6 is installed at the air inlet at the other end of the air duct 103 as a hot air supply source, and preferably, the wind speed and temperature can be adjusted according to needs.

[0033] The circulating conveying component 2 includes a support frame 205. There are several support frames 205 and they can be driven by the drive component 4. The support frame 205 can maintain a horizontal state and move along the closed path in the vertical direction. The lowest point of the closed path is located at the air outlet at one end of the "U"-shaped air duct 103.

[0034] In another embodiment of the present invention, preferably, the circulating conveying component 2 further includes a circulating shell 201. A sprocket 202 is installed inside the circulating shell 201. There are two sprockets 202 arranged symmetrically. A chain 203 is meshed with the outer wall of the sprocket 202. A groove that matches the trajectory of the chain 203 is opened on one side of the circulating shell 201. A sliding member 204 is slidably connected to the inner wall of the groove. There are several sliding members 204, which are equidistantly arranged on the outer wall of the chain 203 along the trajectory of the chain 203. A support frame 205 is installed at the end of the sliding member 204.

[0035] The circulation shell 201 is a closed shell with two sprockets 202 symmetrically installed inside. The outer side of the sprockets 202 is engaged with the chain 203 to form a closed transmission track in the vertical direction.

[0036] A groove matching the track of the chain 203 is provided on one side of the circulation shell 201. Several sliding parts 204 are slidably connected in the groove. The sliding parts 204 are equidistantly distributed along the track of the chain 203 and fixed to the outer wall of the chain 203. A support frame 205 is installed at its end to support the polymer sieve assembly 3.

[0037] The support frame 205 remains horizontal and moves along the vertical closed path with the chain 203. The lowest point of its movement trajectory is located at the air outlet at one end of the "U"-shaped air duct 103, ensuring that the material can fully contact the hot air at this point.

[0038] In another embodiment of the present invention, the power input end of the sprocket 202 is connected to a drive assembly 4.

[0039] In another embodiment of this utility model, the driving component 4 is an intermittent driving mechanism that drives several support frames 205 and polymer sieve components 3 to intermittently maintain a horizontal state and move along a closed path in the vertical direction. When each support frame 205 moves to the lowest point, it pauses for a period of time to increase the contact time between the bottom support frame 205 and the air outlet at one end of the "U"-shaped air duct 103.

[0040] The drive component 4 provides power to the circulating conveyor component 2. When using the existing intermittent drive mechanism, such as the existing product motor + the existing product groove wheel mechanism, it can drive the support frame 205 to move intermittently. Each support frame 205 stops for a few seconds when it moves to the lowest point. This can be adjusted according to the actual use, thereby extending the contact time between the hot air and the material and improving the drying effect.

[0041] In another embodiment of the present invention, the driving component 4 includes a motor and a reduction mechanism, which can drive several support frames 205 and polymer sieve components 3 to slowly maintain a horizontal state and move along a closed path in the vertical direction, thereby increasing the contact time between the bottom support frame 205 and the air outlet at one end of the "U"-shaped air duct 103 and reducing the material vibration caused by excessive movement speed.

[0042] The drive component 4 provides power to the circulating conveyor component 2. If the existing motor + existing reduction mechanism is used for slow drive, the support frame 205 can move at a low speed, which can increase the contact time between the bottom support frame 205 and the hot air, and reduce the material vibration and spillage caused by moving too fast.

[0043] The polymer sieve assembly 3 has several components and is disposed on the inner side wall of the support frame 205. It includes a sieve basin 301, and a sieve cover 302 is provided on the top of the sieve basin 301. Both the sieve basin 301 and the sieve cover 302 have a hollow shell structure that protrudes outward from the center line.

[0044] The polymer sieve assembly 3 is the core component for material carrying and dispersion, corresponding one-to-one with the support frame 205. It includes a sieve basin 301 and a sieve cover 302. Preferably, both are made of antistatic polymer materials, such as reinforced nylon + conductive carbon black. The inner walls of the sieve basin 301 and the sieve cover 302 can also be composited with non-metallic materials such as ceramic linings to reduce the occurrence of sparks due to friction.

[0045] Both the sieve basin 301 and the sieve cover 302 are "hollow shell structures that bulge outward at the center line". When they are combined, their front cross-sections are "V" shaped. When they are combined, they are hollow shell structures with a rhomboid cross-section. When they are combined, their front cross-sections can also be the arc-shaped structure shown in the attached figure.

[0046] The screen basin 301 can be selected with an appropriate mesh size according to the actual situation to ensure that hot air can pass through while retaining lithium battery waste particles.

[0047] The raised structure causes the airflow to diffuse outwards along the arc-shaped surface when hot air is blown in from the bottom, forming an airflow field that is "high in the center and low at the edges," which pushes the material to disperse and suspend at the edges, reducing agglomeration.

[0048] After the support frame 205 leaves the air outlet, the edge material slides and gathers towards the central protrusion under the action of gravity, making it easier to disperse again during the next hot air impact and improving the drying uniformity.

[0049] Working principle: This embodiment provides a lithium battery waste settling and drying device. When in use, the lithium battery waste to be processed is placed in the screen basin 301 of the polymer screen component 3, the screen cover 302 is covered to prevent material splashing, and it is placed in the support frame 205. Preferably, the screen basin 301 and the support frame 205, and the screen basin 301 and the screen cover 302 can be connected by a snap-fit ​​structure.

[0050] Powered by an external power source, the drive assembly 4 is turned on via an external switch. After the drive assembly 4 is started, the chain 203 drives the support frame 205 to move along a vertical closed path.

[0051] When the support frame 205 moves to the lowest point of the trajectory, it is aligned with the air outlet of the "U"-shaped air duct 103, and the hot air generated by the hot air blower 6 is blown into the sieve basin 301 from the bottom.

[0052] Hot air diffuses along the raised surface of the screen basin 301, pushing the material to suspend and disperse, avoiding local overheating; at the same time, the volatilized water vapor and toxic gases rise through the gaps in the screen cover 302 and are discharged through the exhaust pipe 5 at the top of the upper shell 101.

[0053] If it is an intermittent drive, the support frame 205 stops moving and the material is fully dried under the action of hot air. If it is a slow drive, the material moves slowly with the support frame 205 and continues to receive hot air treatment. After leaving the air outlet, the material gathers towards the center of the screen basin 301 under the action of gravity and continues to move with the chain 203 to the rising section of the circulation trajectory. Excess water drips through the screen holes to the bottom box shell 102 and is finally discharged from the drain at the lowest end of the air duct 103.

[0054] The circulating conveyor component 2 drives several support frames 205 and polymer sieve components 3 to maintain a horizontal state and move along a closed path in the vertical direction. The polymer sieve components 3 and the lithium battery waste inside can take turns contacting the hot air, preventing the material from being in contact with the hot air for a long time in one place. This reduces the risk of local high temperature caused by material accumulation, which may lead to combustion or even explosion. Moreover, the air outlet at one end of the "U"-shaped air duct 103 is aligned with the lowest point of the closed path. The "U"-shaped air duct 103 reduces the attenuation of hot air and can cooperate with the hollow shell structure of the sieve basin 301 and sieve cover 302 that protrude outward at the center line. The hot air from the bottom blows the material upward, causing the material to suspend and disperse naturally under the impact of the airflow, reducing agglomeration. There are no mechanical stirring parts, which reduces metal friction. After moving away from the air outlet, the material at the edge slides and gathers towards the protruding part of the center line under its own gravity, which facilitates the next blowing operation (the drive component 4 and the hot air blower 6 are existing products and are connected to an external power source and an external switch).

[0055] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lithium battery waste settling drying apparatus, characterized by, The drying box (1) includes an upper shell (101), and a lower shell (102) is fixed to the bottom of the upper shell (101). An air duct (103) is opened inside the lower shell (102) and the air duct (103) is U-shaped. The circulating conveying component (2) includes a support frame (205), which has a plurality of support frames (205) and can be driven by the drive component (4). The support frame (205) can maintain a horizontal state and move along a closed path in the vertical direction, with the lowest point of the closed path located at the air outlet at one end of a "U"-shaped air duct (103). The polymer sieve assembly (3) has several components and is located on the inner side wall of the support frame (205), including a sieve basin (301). The top of the sieve basin (301) is provided with a sieve cover (302). Both the sieve basin (301) and the sieve cover (302) have a hollow shell structure that protrudes outward from the center line.

2. The lithium battery waste settling and drying device according to claim 1, characterized in that, The circulating conveying assembly (2) further includes a circulating housing (201), inside which a sprocket (202) is installed. There are two sprockets (202) arranged symmetrically, and a chain (203) is meshed with the outer wall of the sprocket (202).

3. The lithium battery waste settling and drying device according to claim 2, characterized in that, The circulation shell (201) has a groove on one side that matches the track of the chain (203), and a sliding member (204) is slidably connected to the inner side wall of the groove. There are several sliding members (204) and they are equidistantly arranged on the outer side wall of the chain (203) along the track of the chain (203). A support frame (205) is installed at the end of the sliding member (204).

4. The lithium battery waste settling and drying device according to claim 3, characterized in that, The power input end of the sprocket (202) is connected to a drive assembly (4).

5. The lithium battery waste settling and drying device according to claim 4, characterized in that, The air duct (103) is U-shaped and has a drain outlet at its lowest end.

6. The lithium battery waste settling and drying device according to claim 5, characterized in that, The top of the upper casing (101) is equipped with an exhaust pipe (5), and the air inlet at the other end of the air duct (103) is equipped with a hot air blower (6).

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