A solid waste treatment apparatus for lithium battery recycling

Abstract

This invention discloses a solid waste treatment device for lithium battery recycling, belonging to the field of solid waste treatment. The device includes a dissociation mechanism and a feeding mechanism for feeding materials into the dissociation mechanism. The dissociation mechanism includes a frame, with a partition plate fixedly connected inside the frame, dividing the frame's interior into three dissociation chambers. A rotary feeding assembly for conveying materials between the three dissociation chambers is located in the middle of the frame. The frame has three feeding ports, each corresponding to one of the three dissociation chambers. By dividing the frame into three independent dissociation stages, this invention can independently dissociate materials of different particle sizes and dissociation difficulties, solving the problem of traditional single-intensity dissociation operations that easily lead to over-crushing or insufficient dissociation. This effectively reduces the metal impurity content in the finished fine powder while minimizing the loss of valuable components.

Description

Technical Field

[0001] This invention relates to the field of solid waste treatment, and in particular to a solid waste treatment device for lithium battery recycling. Background Technology

[0002] The harmless disposal and high-value resource recycling of solid waste are the core development directions of the environmental protection industry and the circular economy. According to publicly available data, the total amount of industrial solid waste, electronic waste, and decommissioned solid waste containing valuable components such as metal coatings generated each year exceeds several billion tons, which contain a large amount of valuable metals, functional powders, and other recyclable resources.

[0003] Among the many solid waste treatment technologies, dry physical sorting technology has become the mainstream technology for the resource utilization of such solid waste due to its advantages such as no wastewater discharge, no chemical pollution, and simultaneous recovery of multiple components. The core is to achieve the interface separation of valuable components of the coating and the metal substrate through the dissociation process, and then complete the purification and recovery of each component through grading and sorting.

[0004] However, existing dissociation processes generally use a uniform energy input for all particles, which results in easily dissociatable particles being over-crushed, fine powder products having excessive metal impurities, and metal resources being lost; the coating of difficult-to-dissociate particles is not fully peeled off, a large number of valuable components are lost with the matrix, and the dissociation rate does not meet the standard.

[0005] Taking the recycling of waste lithium batteries as an example, when existing equipment processes broken lithium battery electrodes, in order to ensure that the dissociation rate of ternary or lithium iron phosphate active materials meets the standards, the shear strength needs to be increased. This can easily cause the copper and aluminum current collectors to be over-crushed. The ultrafine copper and aluminum powder mixed with black powder leads to the metal impurities generally exceeding the standard, making it unusable for regeneration. If the shear strength is reduced to avoid over-crushing of copper and aluminum, the dissociation rate of active materials will be insufficient, and a large amount of valuable components such as lithium, cobalt, and nickel will be lost with the copper and aluminum fragments, resulting in a significant reduction in the overall recycling efficiency.

[0006] Therefore, developing a solid waste treatment device that can balance dissociation efficiency and low damage is an urgent research and development need in this field. Summary of the Invention

[0007] This invention provides a solid waste treatment device for lithium battery recycling, which can solve the problem that existing solid waste equipment cannot simultaneously achieve both treatment efficiency and low damage.

[0008] This invention provides a solid waste treatment device for lithium battery recycling, including a disintegration mechanism and a feeding mechanism for feeding the disintegration mechanism; The separation mechanism includes a frame, and a partition plate is fixedly connected inside the frame. The partition plate divides the inner cavity of the frame into three separation chambers, namely a coarse separation chamber, a medium separation chamber, and a fine material separation chamber, for separating materials of different particle sizes. The frame is provided with a rotary feeding assembly for conveying materials between the three dissociation chambers in the middle; the frame has three feeding ports, which are respectively arranged to correspond to the three dissociation chambers.

[0009] As a further aspect of the present invention: a mounting cover is fixedly connected to the middle of the frame, a bottom filter plate is rotatably provided at the bottom of the mounting cover, a bottom filter screen is fixedly connected to the edge of the bottom filter plate, and a through groove is provided at the bottom of the partition plate for the bottom filter plate to rotate through.

[0010] As a further aspect of the present invention: a receiving cover is fixedly connected to the bottom of the frame, the middle part of the receiving cover is inclined downward and fixedly connected to the mounting cover, and a discharge air duct is fixedly connected to the top of the side wall of the receiving cover.

[0011] As a further aspect of the present invention: a coarse dissociation receiving trough is provided inside the coarse dissociation chamber; a partition plate is fixedly connected to the middle of the inner wall of the coarse dissociation feeding trough; toothed partition grooves are provided on both sides of the partition plate; the bottom of the toothed partition grooves corresponds to the top of the bottom filter disc; coarse dissociation components are provided on both sides of the coarse dissociation feeding trough; the coarse dissociation components include coarse dissociation platforms; the side of each coarse dissociation platform near the coarse dissociation receiving trough is set as an inclined surface, and a diversion conveyor belt is rotatably installed in the middle of each of the two inclined surfaces; a coarse dissociation crushing component is provided on the top of each of the two coarse dissociation platforms.

[0012] As a further aspect of the present invention: a plurality of diverting plates are fixedly connected to the belt surface of the diverting conveyor belt, and the edges of the diverting plates are provided with mating tooth grooves, the mating tooth grooves being correspondingly arranged with toothed material separating grooves, and a baffle is fixedly connected to the top center of the material separating plate, and both sides of the baffle are inclined.

[0013] As a further aspect of the present invention: the coarse disintegration and crushing component includes a support tray, a pressure cylinder is arranged above the support tray, a disintegration motor is fixedly connected to the output end of the pressure cylinder, a friction disc is fixedly connected to the output end of the disintegration motor, and the bottom of the friction disc is correspondingly arranged with the top of the support tray.

[0014] As a further aspect of the present invention: a lifting and feeding platform is provided on the side of the intermediate dissociation chamber near the coarse dissociation chamber, a lifting conveyor belt is rotatably installed in the middle of the lifting and feeding platform, the upper half of the lifting conveyor belt is horizontally arranged, an intermediate crushing chamber is provided on the top of the lifting and feeding platform, an intermediate dissociation crushing component is provided inside the intermediate crushing chamber, and the structure of the intermediate dissociation crushing component is the same as that of the coarse dissociation crushing component; a transfer trough is provided on the side of the intermediate crushing chamber away from the coarse dissociation chamber, and the bottom of the transfer trough is correspondingly arranged with the top of the bottom filter disc.

[0015] As a further embodiment of the present invention: a return material distribution plate is provided above the lifting conveyor belt, a material passage gap is provided between the bottom of the return material distribution plate and the top of the lifting conveyor belt, and one end of the return material distribution plate extends above the rotary feeding assembly.

[0016] As a further aspect of the present invention: a disintegration conveyor belt is provided on the side of the fine material disintegration chamber near the coarse disintegration chamber, a disintegration pressure roller is provided in the middle of the disintegration conveyor belt, a distribution assembly is provided at one end of the disintegration conveyor belt, the distribution assembly includes a distribution cover, a distribution air pipe is provided below the distribution cover, the air supply direction of the distribution air pipe is vertically upward, a crushing roller is rotatably installed on the inner wall of the distribution cover, and a plurality of crushing rods are fixedly connected to the outer wall of the crushing roller.

[0017] As a further aspect of the present invention: the dispensing hood has a dispensing port near the rotary feeding assembly.

[0018] As a further aspect of the present invention: the rotary feeding assembly includes a rotary frame, a return turntable is rotatably mounted inside the rotary frame, a rotary groove is provided on the top of one side of the partition plate for the return turntable to rotate through, an electric push rod is fixedly mounted inside the rotary groove, and a closed plate is fixedly connected to the output end of the electric push rod.

[0019] As a further aspect of the present invention: the feeding mechanism includes a grading vibrating screen, the discharge end of which is connected to three feeding ports via three connecting pipes; the feeding end of the grading vibrating screen is provided with a material drying assembly, which includes a drying chamber, a feeding port on one side of the top of the drying chamber, a discharge motor fixedly installed at one end of the drying chamber, a discharge flap fixedly connected to the output end of the discharge motor, a hot air frame fixedly connected to the bottom of the inner wall of the drying chamber, a plurality of hot air pipes fixedly connected to the top of the hot air frame, one end of the hot air pipes being connected to the output end of an external hot air supply device, linear guide rails fixedly installed on both sides of the drying chamber, a motor base fixedly connected to the output end of the linear guide rails, a tilting motor fixedly installed on one side of the motor base, and a tilting plate fixedly connected to the output end of the tilting motor.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention, by setting up three independent dissociation structures in the frame and combining them with the particle size-separated feeding design of the feeding mechanism, can independently dissociate materials with different particle sizes and different dissociation difficulties. By performing dissociation at different intensities in each cavity, the present invention solves the problem that the traditional dissociation operation with a single intensity is prone to over-grinding or insufficient dissociation of materials. While effectively reducing the content of metal impurities in the finished fine powder, it also reduces the loss of valuable components. This invention, by setting a rotating bottom filter disc at the bottom of the three dissociation chambers, can screen and discharge finished materials that meet the particle size requirements in real time during the dissociation process, completely avoiding excessive crushing caused by qualified materials repeatedly participating in the dissociation. At the same time, the rotation of the bottom filter disc can realize the sequential transportation of materials between the three dissociation chambers, simplifying the material transfer structure of the multi-chamber and improving the continuity of the device operation. This invention, by setting up a rotary feeding component, distributes materials between the various dissociation chambers, which not only improves the overall dissociation effect but also enables cross-chamber adjustment when there is too much material in a single chamber, avoiding equipment failure caused by material blockage and bridging, and improving the stability of continuous equipment operation. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the dissociation mechanism of the present invention; Figure 2 This is a schematic diagram showing the installation state of the bottom filter disc and the partition plate of the present invention; Figure 3 This is a schematic diagram of the internal structure of the dissociation mechanism of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the internal structure of the dissociation mechanism of the present invention. Figure 2 ; Figure 5 This is a schematic cross-sectional view of the coarse dissociation cavity of the present invention; Figure 6 This is a schematic diagram of the internal structure of the fine material dissociation chamber of the present invention; Figure 7 This is a schematic cross-sectional view of the rotary feeding assembly and bottom filter disc of the present invention. Figure 8 This is a cross-sectional schematic diagram of the material drying assembly of the present invention; Figure 9 This is a three-dimensional schematic diagram of the internal structure of the material drying component of the present invention. Explanation of reference numerals in the attached figures: 101. Frame; 102. Rotary frame; 103. Mounting cover; 104. Divider plate; 105. Bottom filter plate; 106. Return turntable; 107. Receiving cover; 108. Discharge duct; 110. Coarse decomposition table; 111. Diverting conveyor belt; 112. Diverting plate; 113. Material separator plate; 114. Baffle; 115. Decomposition motor; 116. Support tray; 117. Friction disc; 120. Lifting loading platform; 121. Lifting conveyor belt; 122. Return diverting plate; 123. Intermediate decomposition... 130. Separating conveyor belt; 131. Feeding plate; 132. Pressure roller cover; 133. Separating pressure roller; 134. Distributing cover; 135. Crushing roller; 136. Distributing port; 201. Drying box; 202. Feed inlet; 203. Hot air frame; 204. Hot air pipe; 205. Linear guide rail; 206. Motor base; 207. Tilting motor; 208. Tilting plate; 209. Discharge flap; 301. Coarse material connecting pipe; 302. Medium material connecting pipe; 303. Fine material connecting pipe. Detailed Implementation

[0022] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0023] like Figures 1-2 As shown in the figure, an embodiment of the present invention provides a solid waste treatment device for lithium battery recycling, including a dissociation mechanism and a feeding mechanism for feeding the dissociation mechanism. The separation mechanism includes a frame 101, with a partition plate 104 fixedly connected inside the frame 101. The partition plate 104 divides the inner cavity of the frame 101 into three separation chambers: a coarse separation chamber, a medium separation chamber, and a fine material separation chamber, used for separating materials of different particle sizes. This application separates materials of different particle sizes using multiple independently set separation chambers, thereby facilitating the adjustment of the separation intensity in each separation chamber and adapting to materials of different particle sizes to avoid problems of insufficient or excessive separation. Furthermore, a rotary feeding assembly for conveying materials between the three separation chambers is provided in the middle of the frame 101. During the operation of the separation mechanism, the rotary feeding assembly performs secondary material distribution. On the one hand, it can convey materials of different particle sizes back to the separation chambers suitable for their separation needs. On the other hand, when there is too much material in a certain separation chamber, the rotary feeding assembly can convey and distribute it to other separation chambers to avoid material blockage and equipment failure.

[0024] The outer wall of the frame 101 has three feeding ports, which are respectively set with three dissociation chambers. In specific implementation, the appropriate dissociation chamber can be selected for use according to the state of the material fed by the feeding mechanism and fed through the corresponding feeding port. That is, if the overall particle size of the material is relatively coarse, it can be fed into the coarse material dissociation chamber, and if the overall particle size of the material is relatively coarse, it can be directly fed into the fine material dissociation chamber, thereby improving the flexibility of the device.

[0025] Please see Figure 3 and Figure 4 A mounting cover 103 is fixedly connected to the middle of the frame 101. A bottom filter plate 105 is rotatably mounted on the bottom of the mounting cover 103. A bottom filter screen is fixedly connected to the edge of the bottom filter plate 105. The mesh size of the bottom filter screen meets the standard requirements for the size of the material particles that can pass through the bottom filter screen, i.e., the material after screening by the bottom filter screen can be directly sent out as finished material. Since the bottom filter screen is rotatably mounted below the three dissociation chambers, material that meets the particle size requirements of finished material can be discharged in real time during the dissociation process, regardless of which dissociation chamber produces material that meets the particle size requirements of finished material, avoiding the problem of over-dissociation caused by repeated participation in the dissociation process. At the same time, the rotation of the bottom filter plate 105 and the bottom filter screen realizes the sequential conveying of materials in the three dissociation chambers.

[0026] To avoid obstructing the rotation of the bottom filter disc 105 by the partition plate 104, and to facilitate the conveying of the material carried on it, a through groove is provided at the bottom of the partition plate 104.

[0027] In one embodiment, see Figure 7 To facilitate the receiving and collection of the dissociated material, a receiving hood 107 is fixedly connected to the bottom of the frame 101. The middle part of the receiving hood 107 is inclined downwards and fixedly connected to the mounting cover 103. The bottom of the mounting cover 103 is set as an opening. Several discharge air pipes 108 are fixedly connected to the top of the side wall of the receiving hood 107. The output air outlets of the discharge air pipes 108 are inclined downwards to supply air to the side wall of the receiving hood 107 to assist in the discharge of the material inside the receiving hood 107. The other end of the discharge air pipe 108 is connected to the output end of an external air pump for connecting to an air source.

[0028] In one embodiment, see Figure 3 and Figure 5 The coarse dissociation chamber is provided with a coarse dissociation receiving trough. A partition plate 113 is fixedly connected to the middle of the inner wall of the coarse dissociation feeding trough. Toothed partition grooves are provided on both sides of the partition plate 113. The bottom of the toothed partition groove is corresponding to the top of the bottom filter plate 105. The width interval of the toothed partition groove is sufficient to block materials with larger particle size. In one embodiment, coarse dissociation components are provided on both sides of the coarse dissociation feeding trough. The coarse dissociation components include coarse dissociation platforms 110. The side of each coarse dissociation platform 110 near the coarse dissociation receiving trough is set as an inclined surface, and a diversion conveyor belt 111 is rotatably installed in the middle of each of the two inclined surfaces. Coarse dissociation crushing components are provided on the top of each of the two coarse dissociation platforms 110. Since the coarse dissociation chamber is responsible for the dissociation operation of materials with larger particle sizes, and when materials with larger particle sizes are piled up, the material particles are easy to overlap each other, resulting in more pores inside. Therefore, under the same mass, it often needs to occupy more space than materials with smaller particle sizes. This application achieves material reception by setting a coarse dissociation receiving trough in the middle of the coarse dissociation chamber, and by setting inclined surfaces on both sides of the coarse dissociation receiving trough, the material naturally converges and concentrates, and by setting a diversion conveyor belt 111 on the inclined surface, the material is discharged from both sides, which effectively avoids the problem of easy blockage and bridging of conveyed material caused by single-sided horizontal material conveying, resulting in low conveying efficiency.

[0029] In one embodiment, to further improve the conveying efficiency of materials and avoid material blockage, a plurality of diverting plates 112 are fixedly connected to the belt surface of the diverting conveyor belt 111. The edges of the diverting plates 112 are provided with mating tooth grooves, which are correspondingly arranged with toothed material separating grooves. A baffle 114 is fixedly connected to the top center of the material separating plate 113. Both sides of the baffle 114 are inclined so that the material can move to both sides.

[0030] In one embodiment, the coarse disintegration pulverizer is used to achieve the pulverization and disintegration of materials. Its specific structure can be implemented with reference to existing technical means. This application provides a feasible structure as follows: The coarse disintegration pulverizer includes a support tray 116. A pressure cylinder is arranged above the support tray 116. The output end of the pressure cylinder is fixedly connected to a disintegration motor 115. The output end of the disintegration motor 115 is fixedly connected to a friction disc 117. The bottom of the friction disc 117 is correspondingly arranged with the top of the support tray 116. The disintegration motor 115 drives the friction disc 117 to rotate, which cooperates with the support tray 116 to achieve the grinding and disintegration of materials. The disintegration cylinder drives the disintegration motor 115 to lift and lower, thereby realizing the adjustment of the lifting and lowering of the friction disc 117 and controlling the gap between the friction disc 117 and the support tray 116. By adjusting the speed of the disintegration motor 115 and the downward pressure of the pressure cylinder, the force intensity of the material is controlled, thereby adapting to different materials to achieve different disintegration effects.

[0031] In one embodiment, see Figure 3A lifting platform 120 is provided on the side of the intermediate dissociation chamber near the coarse dissociation chamber. A lifting conveyor belt 121 is rotatably mounted on the middle of the lifting platform 120. The lower half of the lifting conveyor belt 121 is inclined with the side of the lifting platform 120 to lift materials. A guide plate 131 is provided between the bottom of the lifting conveyor belt 121 and the bottom filter screen. The guide plate 131 is inclined to guide the material on the bottom filter screen onto the lifting conveyor belt 121. The upper half of the lifting conveyor belt 121 is horizontal. An intermediate crushing chamber is provided at the top of the lifting platform 120. An intermediate dissociation crushing component 123 is provided inside the intermediate crushing chamber. The structure of the intermediate dissociation crushing component 123 is the same as that of the coarse dissociation crushing component. A transfer chute is provided on the side of the intermediate crushing chamber away from the coarse dissociation chamber. The bottom of the transfer chute corresponds to the top of the bottom filter plate 105.

[0032] In one embodiment, a return distribution plate 122 is provided above the lifting conveyor belt 121. A material passage gap is provided between the bottom of the return distribution plate 122 and the top of the lifting conveyor belt 121. The width of the material passage gap is smaller than the particle size of the coarse material. One end of the return distribution plate 122 is inclined and extends above the rotary feeding assembly, so that the coarse material sent out by the lifting conveyor belt 121 will be blocked by the return distribution plate 122 and move along the return distribution plate 122 to the rotary feeding assembly under the pushing action of the lifting conveyor belt 121. Through the rotation of the rotary feeding assembly, it is sent back to the coarse separation chamber.

[0033] In one embodiment, see Figure 3 and Figure 7 The rotary feeding assembly includes a rotary frame 102, inside which a return turntable 106 is rotatably mounted. The return turntable 106 is driven by a servo motor and can rotate freely in both directions. Rotary grooves for the return turntable 106 to rotate through are provided at each junction of the inner side of the partition and the return turntable 106. An electric push rod is fixedly installed inside each rotary groove. The output end of the electric push rod is fixedly connected to a sealing plate. The electric push rod controls the lifting and lowering of the sealing plate to control the closing or opening of the rotary groove. When the rotary groove is open, the material on the return turntable 106 is allowed to pass through. When the rotary groove is closed, the material is blocked and retained in the corresponding release chamber. This achieves the conveying and distribution of materials.

[0034] In one embodiment, see Figure 3 , Figure 4 and Figure 6A separation conveyor belt 130 is provided on the side of the fine material separation chamber near the coarse separation chamber. A material guide plate 131 is also provided between the separation conveyor belt 130 and the bottom filter screen. Several sets of separation pressure rollers 133 are provided in the middle of the separation conveyor belt 130. A pressure roller cover 132 is provided on the outside of the separation pressure rollers 133. The fine material is pressed by the pressure of the separation pressure rollers 133, so as to further crush and separate it. A distribution assembly is provided at one end of the separation conveyor belt 130. The distribution assembly includes a distribution cover 134. Below the distribution cover 134 is a... A distribution air duct is provided, and the bottom filter screen is located between the distribution hood 134 and the distribution air duct. The air supply direction of the distribution air duct is vertically upward. Due to the compression operation, some materials will be pressed into flakes, increasing their volume and the air-receiving area. Therefore, they can be blown upward by blowing air upward. Furthermore, a crushing roller 135 is rotatably installed on the inner wall of the distribution hood 134. Several crushing rods are fixedly connected to the outer wall of the crushing roller 135. The rotation of the crushing roller 135 drives the crushing rods to further crush the material, dispersing and separating it.

[0035] In one embodiment, the distribution hood 134 has a distribution port 136 near the rotary feeding assembly. During the blowing operation, the distribution air duct can gradually adjust its airflow to achieve different separation effects. When the initial airflow is low, it can cause the bottom material to churn, allowing smaller particles to stably pass through the bottom filter screen and be discharged. When the airflow is medium, it can cause flaky or larger particles to rise to the position of the crushing roller 135 in the middle of the distribution hood 134, where the crushing roller 135 and the crushing rod break up and separate the material. When the airflow is strong, any uncrushed material is fed through the distribution port 136 onto the rotary feeder and returned to the intermediate dissociation chamber for processing. Simultaneously, the blowing effect of the distribution air duct cleans the material adhering to the bottom filter screen, maintaining its screening effect during continuous operation.

[0036] In one embodiment, the feeding mechanism includes a grading vibrating screen, which is a three-layer vibrating screen used for pre-screening and grading of materials before they enter the dissociation mechanism. Its specific structure is implemented using existing technology and is not shown in the figure. The discharge ends of the three layers of the grading vibrating screen are connected to the three feeding ports via three connecting pipes. That is, the coarse, medium, and fine materials screened from the three layers are respectively sent out through the coarse material connecting pipe 301, the medium material connecting pipe 302, and the fine material connecting pipe 303, and then respectively fed into the coarse dissociation chamber, the medium dissociation chamber, and the fine material dissociation chamber. The connection positions of the coarse material connecting pipe 301, the medium material connecting pipe 302, and the fine material connecting pipe 303 are shown in the figure. Figure 1 and Figure 2 .

[0037] In one embodiment, to avoid excessively high material viscosity, which could lead to adhesion and difficulty in separation during subsequent vibratory screening and dissociation, a material drying component is provided at the feed end of the grading vibratory screen. Please refer to [link to relevant documentation]. Figure 8 and Figure 9 The material drying assembly includes a drying chamber 201. A feed inlet 202 is located on one side of the top of the drying chamber 201. A discharge motor is fixedly installed at one end of the drying chamber 201, and a discharge flap 209 is fixedly connected to the output end of the discharge motor. A hot air frame 203 is fixedly connected to the bottom of the inner wall of the drying chamber 201. Several hot air pipes 204 are fixedly connected to the top of the hot air frame 203. One end of each hot air pipe 204 is connected to the output end of an external hot air supply device. Linear guide rails 205 are fixedly installed on both sides of the drying chamber 201. A motor base 206 is fixedly connected to the output end of the linear guide rail 205. One side of the motor base 206... A tilting motor 207 is fixedly installed, and a tilting plate 208 is fixedly connected to the output end of the tilting motor 207. During drying, the material is fed in through the feed inlet 202, and then hot air is sent into each hot air pipe 204 by an external hot air fan. The tilting motor 207 drives the tilting plate 208 to rotate, which stirs the material, making it quickly dispersed and dried. During discharge, the discharge motor drives the discharge tilting plate 209 to open, the tilting motor 207 drives the tilting plate 208 to be vertical, and the linear guide rail 205 drives the motor base 206 to move, which in turn drives the tilting motor 207 and the tilting plate 208 to move, pushing the material out.

[0038] In use, the material first falls into the material drying assembly through the feed inlet 202. Hot air is first supplied by an external hot air supply device and then sent out through multiple sets of hot air pipes 204. The turning motor 207 drives the turning plate 208 to rotate continuously, turning the material to ensure that the material is fully in contact with the hot air to complete the drying. After drying, the turning motor 207 drives the turning plate 208 to rotate to a vertical position. The linear guide rail 205 drives the turning plate 208 to move horizontally towards the discharge port. The discharge motor drives the discharge turning plate 209 to flip downward and open, sending the dried material into the grading vibrating screen. The three-layer grading vibrating screen pre-screens and grades materials, separating them into coarse, medium, and fine materials according to particle size. The three types of materials are fed into the independent feeding ports of the frame 101 corresponding to the coarse release chamber, medium release chamber, and fine release chamber through the coarse material connecting pipe 301, the medium material connecting pipe 302, and the fine material connecting pipe 303, respectively, to achieve feeding into the chambers according to particle size. After entering the coarse separation chamber, the coarse material falls into the coarse separation receiving trough in the middle. After being guided by the inclined surface of the baffle 114, it is diverted to both sides. The rotation of the diversion conveyor belt 111 drives the diversion plate 112 to move, which in turn drives the material to be conveyed upward along the inclined surface of the coarse separation table 110, and the material is stably delivered into the support tray 116. The pressurizing cylinder drives the separation motor 115 and the friction disc 117 to descend, and adjusts the mating clearance between the friction disc 117 and the support tray 116. The separation motor 115 drives the friction disc 117 to rotate, and cooperates with the support tray 116 to grind and separate the material. After separation, the smaller material passes through the toothed material separation groove on the material separation plate 113 and falls onto the continuously rotating bottom filter plate 105 below. The bottom filter disc 105 rotates continuously. The medium material moving with the bottom filter disc 105 is introduced into the lifting conveyor belt 121 of the intermediate dissociation chamber through the feeding plate 131. The lifting conveyor belt 121 drives the material to be conveyed upward. The material passage gap between the return distribution plate 122 and the lifting conveyor belt 121 blocks the coarse particles and guides them to the rotary feeding assembly to be sent back to the coarse dissociation chamber for secondary processing. The remaining medium material is sent into the intermediate crushing chamber at the top. After being dissociated by the intermediate dissociation crushing component 123, it falls back to the bottom filter disc 105 through the transfer chute. Then, the material moving with the bottom filter plate 105 is introduced into the fine material separation chamber via the feed plate 131 and the separation conveyor belt 130. During the material conveying process, multiple sets of separation rollers 133 continuously press and separate the material. The processed material is sent to the end distribution hood 134. The distribution air pipe blows air vertically upward. Fine materials that meet the particle size are discharged through the bottom filter screen, while flaky or large-sized materials are blown to the middle of the distribution hood 134. The crushing roller 135 drives the crushing rod to rotate and crush and separate the material. Larger materials that do not meet the standard are guided to the rotary feeding assembly through the distribution port 136 and sent back to the intermediate separation chamber for secondary processing. At the same time, the airflow from the distribution air pipe can clean the material attached to the bottom filter screen and maintain the screening efficiency. Throughout the dissociation process, materials that meet the finished product particle size requirements pass through the bottom filter screen in real time and fall into the receiving hood 107 below. Then, multiple sets of discharge air ducts 108 on the side wall of the receiving hood 107 are inclined downward to send air to assist the smooth discharge of materials.

[0039] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A solid waste treatment device for lithium battery recycling, characterized in that, Includes a release mechanism and a feeding mechanism for feeding the release mechanism; The dissociation mechanism includes a frame (101), and a partition plate (104) is fixedly connected inside the frame (101). The partition plate (104) divides the inner cavity of the frame (101) into three dissociation chambers. The three dissociation chambers are a coarse dissociation chamber, a medium dissociation chamber, and a fine material dissociation chamber. A rotary feeding assembly for conveying materials between the three dissociation chambers is provided in the middle of the frame (101). The frame (101) has three feeding ports, and the three feeding ports are respectively arranged corresponding to the three dissociation chambers.

2. The solid waste treatment equipment for lithium battery recycling as described in claim 1, characterized in that, A mounting cover (103) is fixedly connected to the middle of the frame (101). A bottom filter plate (105) is rotatably provided at the bottom of the mounting cover (103). A bottom filter screen is fixedly connected to the edge of the bottom filter plate (105). A through groove is provided at the bottom of the partition plate (104) for the bottom filter plate (105) to rotate through.

3. The solid waste treatment equipment for lithium battery recycling as described in claim 1, characterized in that, The coarse dissociation chamber is provided with a coarse dissociation receiving trough. A partition plate (113) is fixedly connected to the middle of the inner wall of the coarse dissociation feeding trough. A toothed partition groove is provided on both sides of the partition plate (113). The bottom of the toothed partition groove is corresponding to the top of the bottom filter plate (105). Coarse dissociation components are provided on both sides of the coarse dissociation feeding trough. The coarse dissociation components include coarse dissociation platforms (110). The side of each of the two coarse dissociation platforms (110) near the coarse dissociation receiving trough is set as an inclined surface. A diversion conveyor belt (111) is rotatably installed in the middle of each of the two inclined surfaces. A coarse dissociation crushing component is provided on the top of each of the two coarse dissociation platforms (110).

4. The solid waste treatment equipment for lithium battery recycling as described in claim 3, characterized in that, A number of diverting plates (112) are fixedly connected to the belt surface of the diverting conveyor belt (111). The edge of the diverting plate (112) is provided with a docking tooth groove, which is correspondingly arranged with the toothed material separator groove. A baffle (114) is fixedly connected to the top center of the material separator plate (113), and both sides of the baffle (114) are inclined.

5. The solid waste treatment equipment for lithium battery recycling as described in claim 3, characterized in that, The coarse disintegration and crushing component includes a support tray (116), a pressure cylinder is provided above the support tray (116), a disintegration motor (115) is fixedly connected to the output end of the pressure cylinder, a friction disc (117) is fixedly connected to the output end of the disintegration motor (115), and the bottom of the friction disc (117) is correspondingly provided to the top of the support tray (116).

6. The solid waste treatment equipment for lithium battery recycling as described in claim 1, characterized in that, A lifting platform (120) is provided on the side of the intermediate dissociation chamber near the coarse dissociation chamber. A lifting conveyor belt (121) is rotatably installed in the middle of the lifting platform (120). The upper half of the lifting conveyor belt (121) is horizontally arranged. An intermediate crushing chamber is provided on the top of the lifting platform (120). An intermediate dissociation crushing component (123) is provided inside the intermediate crushing chamber. A transfer trough is provided on the side of the intermediate crushing chamber away from the coarse dissociation chamber. The bottom of the transfer trough is corresponding to the top of the bottom filter plate (105).

7. A solid waste treatment device for lithium battery recycling as described in claim 6, characterized in that, A return feed plate (122) is provided above the lifting conveyor belt (121). A material passage gap is provided between the bottom of the return feed plate (122) and the top of the lifting conveyor belt (121). One end of the return feed plate (122) extends above the rotary feeding assembly.

8. The solid waste treatment equipment for lithium battery recycling as described in claim 1, characterized in that, A disintegration conveyor belt (130) is provided on the side of the fine material disintegration chamber near the coarse disintegration chamber. A disintegration pressure roller (133) is provided in the middle of the disintegration conveyor belt (130). A distribution assembly is provided at one end of the disintegration conveyor belt (130). The distribution assembly includes a distribution cover (134). A distribution air pipe is provided below the distribution cover (134). The air supply direction of the distribution air pipe is vertically upward. A crushing roller (135) is rotatably installed on the inner wall of the distribution cover (134). Several crushing rods are fixedly connected to the outer wall of the crushing roller (135). A distribution port (136) is opened near the rotary feeding assembly of the distribution cover (134).

9. A solid waste treatment device for lithium battery recycling as described in claim 1, characterized in that, The rotary feeding assembly includes a rotary frame (102), a return turntable (106) is rotatably mounted inside the rotary frame (102), and a rotary groove is provided on the top side of the partition plate (104) for the return turntable (106) to rotate through. An electric push rod is fixedly installed inside the rotary groove, and a closed plate is fixedly connected to the output end of the electric push rod.

10. A solid waste treatment device for lithium battery recycling as described in claim 1, characterized in that, The bottom of the frame (101) is fixedly connected to a receiving cover (107). The middle part of the receiving cover (107) is inclined downward and fixedly connected to the mounting cover (103). The top of the side wall of the receiving cover (107) is fixedly connected to a discharge air duct (108).

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