A device for drying waste lithium-ion battery black powder

Abstract

The utility model discloses a kind of equipment for drying waste lithium ion battery black powder, including dryer main body, the one end of dryer main body is provided with spiral feeder body, the top end outlet of spiral feeder body corresponds the top end inlet of dryer main body, the bottom of spiral feeder body is provided with feeding tank, the upper surface of feeding tank is provided with crushing treatment mechanism;By design crushing treatment mechanism, when drying feeding, when feeding to the inside of crushing treatment box by feeding hopper, directly falling between two crushing treatment rollers is carried out to rotate crushing treatment, and when discharging, the end of crushing treatment roller is shielded by protective baffle, prevent direct drive to end portion not to be directly dropped after crushing, effectively crushing treatment, after crushing, feeding is conveyed to the inside of dryer main body when mixed with humid hard group and mixed with particle, facilitate feeding after crushing, in the inside of dryer main body, fully contact drying treatment, and drying effect is better.

Description

Technical Field

[0001] This utility model belongs to the field of drying equipment technology, specifically relating to a device for drying black powder from waste lithium-ion batteries. Background Technology

[0002] During the crushing and sorting of waste lithium-ion batteries, the quality of the black powder produced varies depending on the chosen process. When underwater crushing of waste lithium-ion batteries is used, the black powder produced has a high water content, ranging from 30% to 60%. In addition, some black powder with high nickel content is prone to absorbing water and clumping when exposed to air for a long time. This high water content seriously affects the sale of the product, so it must be dried, usually using drying equipment.

[0003] Existing drying equipment directly feeds waste lithium-ion battery black powder into the dryer via a screw conveyor. However, this feeding process is problematic because the battery black powder contains damp, easily clumped material, as well as large, hardened particles, which can clog the feeder and reduce the feeding rate. This hinders the drying equipment's ability to efficiently process and crush the feeder during the waste lithium-ion battery black powder drying process. Therefore, this invention proposes a waste lithium-ion battery black powder drying device. Utility Model Content

[0004] The purpose of this utility model is to provide a device for drying waste lithium-ion battery black powder, so as to solve the problems mentioned in the background art, where the screw feeder directly enters the internal drying process through the feed box during feeding, and when the battery black powder is mixed with moisture and easily clumps together, and contains large particles, it is easy to block the feed rate when it is directly fed into the machine after clumping and becoming hard.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for drying waste lithium-ion battery black powder, comprising a dryer body, a screw feeder body at one end of the dryer body, the top outlet of the screw feeder body corresponding to the top inlet of the dryer body, a feeding box at the bottom end of the screw feeder body, a crushing mechanism on the upper surface of the feeding box, the crushing mechanism including a feeding processing component on the upper surface of the feeding box, a crushing component inside the feeding processing component, shielding and protective components at both ends of the crushing component, and a shielding and cleaning component at the top inside the feeding processing component.

[0006] Preferably, a cyclone dust collector is installed at the middle position of the upper surface of the dryer body through a pipe, a water washing tower is connected to the side of the cyclone dust collector, and a chimney is connected to the side of the water washing tower through a pipe.

[0007] Preferably, the dryer includes a centralized dust collector, a hydrogel screw feeder is provided at the other end of the dryer body, a drum screen is provided at the end of the hydrogel screw feeder, a magnetic separator is provided at the end of the drum screen, and a grinder and a copper-aluminum separator are sequentially provided at the end of the magnetic separator. The upper surface of the drum screen, the grinder and the copper-aluminum separator are all connected to the centralized dust collector through pipes.

[0008] Preferably, the feeding processing assembly includes a crushing processing box that is fixedly mounted on the upper surface of the feeding box by bolts, the top of the crushing processing box is welded with a feeding hopper, and the bottom of the crushing processing box is provided with a flow channel.

[0009] Preferably, the pulverizing assembly includes two pulverizing rollers mounted inside the pulverizing chamber via bearings. A drive groove is provided on the side of the pulverizing chamber. A drive gear is fixed inside the drive groove on the end surface of the pulverizing rollers. The two drive gears mesh with each other. A reduction motor is fixed on the end of the pulverizing rollers on the rear surface of the pulverizing chamber.

[0010] Preferably, the shielding and protection assembly includes protective retaining rings fitted onto the outer surfaces of both ends of the crushing roller, with a fixing ring integrally provided on the inner surface of the protective retaining ring, and a fixing bolt threaded onto the surface of the fixing ring. The end surface of the crushing roller is provided with an internal threaded hole that matches the fixing bolt.

[0011] Preferably, the shielding and cleaning assembly includes a rubber baffle fixedly installed at the bottom of the feed hopper at the top of the inside of the crushing and processing box by mounting screws. The bottom end of the rubber baffle is provided with a brush, and the lower surface of the brush is in contact with the surface of the crushing and processing roller.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By designing a crushing mechanism, during the drying process, when feeding material into the crushing box through the feed hopper, the material falls directly between two crushing rollers for rotational crushing. Protective rings at the ends of the crushing rollers prevent direct drive to ensure uncrushed material falls, effectively crushing the material. This process effectively transports crushed material, including material mixed with damp, hardened clumps and particles, into the dryer body, facilitating feeding after crushing. The material is then fully contacted and dried inside the dryer body, resulting in better drying performance and improved convenience for crushing material fed into the feed hopper during the drying of waste lithium-ion battery black powder. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the feeding box, crushing and processing box and the feeding hopper of this utility model;

[0016] Figure 3 This is a cross-sectional view of the crushing roller and crushing box of this utility model;

[0017] Figure 4 This is a schematic diagram of the crushing roller and drive groove structure of this utility model;

[0018] Figure 5 This utility model Figure 3 Enlarged structural diagram of section B;

[0019] Figure 6 This utility model Figure 2 Enlarged structural diagram of section A;

[0020] In the diagram: 101. Dryer body; 1011. Cyclone dust collector; 1012. Water washing tower; 1013. Exhaust chimney; 1014. Hydrostatic screw feeder; 1015. Rotary drum screen; 102. Screw feeder body; 103. Feeding box; 1031. Crushing and processing box; 1032. Feed hopper; 1033. Crushing and processing roller; 1034. Guide channel; 1035. Protective retaining ring; 1036. Drive channel; 1037. Drive gear; 1038. Gear motor; 1039. Fixing ring; 1030. Fixing bolt; 104. Magnetic separator; 105. Grinding mill; 106. Copper-aluminum separator; 107. Central dust collector; 108. Rubber baffle; 1081. Brush. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 6This utility model provides a technical solution: a device for drying waste lithium-ion battery black powder, including a dryer body 101, a screw feeder body 102 is provided at one end of the dryer body 101, the top outlet of the screw feeder body 102 corresponds to the top inlet of the dryer body 101, a feeding box 103 is provided at the bottom end of the screw feeder body 102, a cyclone dust collector 1011 is installed in the middle of the upper surface of the dryer body 101 through a pipe, a water washing tower 1012 is connected to the side of the cyclone dust collector 1011, and a chimney 1013 is connected to the side of the water washing tower 1012 through a pipe.

[0023] The dryer includes a centralized dust collector 107, a hydrogel screw feeder 1014 at one end of the dryer body 101, a drum screen 1015 at the end of the hydrogel screw feeder 1014, a magnetic separator 104 at the end of the drum screen 1015, a grinder 105 and a copper-aluminum separator 106 at the end of the magnetic separator 104, and the upper surface of the drum screen 1015, the grinder 105 and the copper-aluminum separator 106 are all connected to the centralized dust collector 107 through pipes.

[0024] The upper surface of the feeding box 103 is provided with a crushing and processing mechanism. The crushing and processing mechanism includes a feeding processing component provided on the upper surface of the feeding box 103. The feeding processing component is equipped with a crushing component inside. The two ends of the crushing component are equipped with shielding and protective components. The top of the inside of the feeding processing component is equipped with a shielding and cleaning component. When feeding into the feeding box 103, the crushing and processing mechanism can crush the clumps and particles of battery black powder before feeding, which facilitates the feeding and effective drying process.

[0025] To facilitate feeding and crushing through the feeding assembly, in this embodiment, preferably, the feeding assembly includes a crushing box 1031 that is bolted to the upper surface of the feeding box 103. A feeding hopper 1032 is welded to the top of the crushing box 1031, and a guide channel 1034 is provided at the bottom of the interior of the crushing box 1031. When the feeding hopper 1032 feeds into the interior of the crushing box 1031, the material is crushed by two crushing rollers 1033 rotating in opposite directions inside the crushing box 1031.

[0026] To facilitate the crushing and feeding of incoming battery black powder by means of a crushing assembly, in this embodiment, preferably, the crushing assembly includes two crushing rollers 1033 mounted inside a crushing chamber 1031 by bearings. A drive groove 1036 is provided on the side of the crushing chamber 1031. A drive gear 1037 is fixed inside the drive groove 1036 on the end surface of the crushing rollers 1033. The two drive gears 1037 mesh with each other. A reduction motor 1038 is fixed on the rear surface of the crushing chamber 1031 at the end of the crushing rollers 1033. The reduction motor 1038 can drive the two drive gears 1037 to mesh, and when the drive gears 1037 rotate, they drive the two crushing rollers 1033 to rotate and crush the powder.

[0027] To facilitate the shielding and protection of both ends of the crushing roller 1033 and prevent uncrushed particles from falling directly, in this embodiment, preferably, the shielding and protection assembly includes protective retaining rings 1035 fitted onto the outer surfaces of both ends of the crushing roller 1033. A fixing ring 1039 is integrally formed on the inner surface of the protective retaining ring 1035, and a fixing bolt 1030 is threaded onto the surface of the fixing ring 1039. An internal threaded hole matching the fixing bolt 1030 is opened on the end surface of the crushing roller 1033. The protective retaining ring 1035 is fixedly installed at the end of the crushing roller 1033 by the fixing ring 1039 and the crushing roller 1033. When the two crushing rollers 1033 rotate in opposite directions, the protective retaining ring 1035 shields the ends, preventing uncrushed particles from falling directly.

[0028] In order to facilitate the material guidance and entry of the shielding and cleaning component, and at the same time clean the surface of the crushing roller 1033, in this embodiment, preferably, the shielding and cleaning component includes a rubber baffle 108 fixedly installed at the bottom of the feed hopper 1032 and located at the top of the inside of the crushing box 1031 by mounting screws. The bottom of the rubber baffle 108 is provided with a brush 1081, and the lower surface of the brush 1081 contacts the surface of the crushing roller 1033. When the material is fed into the feed hopper 1032, it can be guided into the feed hopper 1032 by the two rubber baffles 108, and the surface of the crushing roller 1033 contacts the brush 1081 for shielding and cleaning during the material guidance process.

[0029] The model number of the geared motor 1038 in this utility model is 6GU-30-K.

[0030] The working principle and usage process of this utility model: In the feeding process of this waste lithium-ion battery black powder drying equipment, the reduction motor 1038 drives the drive gear 1037 to rotate. When the drive gear 1037 rotates, it meshes with the two crushing rollers 1033, causing them to rotate in opposite directions. At this time, when feeding material into the crushing box 1031 through the feed hopper 1032, the material falls directly between the two crushing rollers 1033 for rotational crushing. During the feeding process, the ends of the crushing rollers 1033 are protected by retaining rings 1035. The shielding and protection prevents direct drive to the end of the un-crushed material from falling directly, ensuring effective crushing. After crushing, the material falls to the bottom of the crushing box 1031 and is fed into the feeding box 103 through the guide channel 1034. The crushed material mixed with moisture and hard lumps, as well as mixed with particles, is fed into the dryer body 101 for convenient feeding after crushing. The material is fully in contact with the drying process inside the dryer body 101, resulting in better drying effect and improving the convenience of feeding and crushing the material into the feeding box 103 when drying waste lithium-ion battery black powder.

[0031] Then, when the material is fed into the inside of the feed hopper 1032, the material is guided down between the two rubber baffles 108 and then crushed between the two crushing rollers 1033. At the same time, when the crushing rollers 1033 are driven, they contact the bottom of the brushes 1081 to clean the battery black powder attached to the surface, effectively shielding and cleaning the material, and accurately crushing it. This improves the convenience of shielding and cleaning the material when feeding the drying equipment during the drying of waste lithium-ion battery black powder.

[0032] Finally, when the feed material enters the dryer body 101 for internal drying, it is dried at a temperature of about 200℃. The smoke generated during drying enters the cyclone dust collector 1011 for dust removal, and then passes through the water washing tower 1012 for water washing and purification before being discharged through the chimney 1013. At the same time, after drying in the dryer body 101, the material is discharged from the tail end of the dryer body 101 to the internal cooling and conveying of the hydro-condensing screw feeder 1014. The dried material is cooled to below 60℃ by the hydro-condensing screw feeder 1014. Powder materials with copper and aluminum content that meet the standards and powder particle size that meet the standards are directly discharged and bagged. Materials with excessive copper and aluminum content or excessive powder particle size are conveyed into the drum screen 1015 for screening, so that the black powder is separated for the first time. This process can separate more than 70% of the black powder.

[0033] The material then enters the magnetic separator 104 to separate the iron shell and magnetic materials. The separated copper-aluminum mixture is ground by the grinder 105. The ground material enters the cyclone collector under negative pressure and falls into the vibrating screen. The large particles on the screen are ground again by the vibrating screen until they fall through the screen. The mixture of undersize material enters the copper-aluminum separator 106 for separation. Therefore, during the subsequent drying process, the material is again concentrated in the dust collector 107 for centralized dust removal and is discharged in compliance with regulations.

[0034] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for drying waste lithium-ion battery black powder, comprising a dryer body (101), wherein a screw feeder body (102) is provided at one end of the dryer body (101), the top outlet of the screw feeder body (102) corresponds to the top inlet of the dryer body (101), and a feeding box (103) is provided at the bottom end of the screw feeder body (102), characterized in that: The upper surface of the feeding box (103) is provided with a crushing mechanism. The crushing mechanism includes a feeding processing component provided on the upper surface of the feeding box (103). The inside of the feeding processing component is a crushing component. Both ends of the crushing component are provided with shielding and protection components. The top of the inside of the feeding processing component is provided with a shielding and cleaning component.

2. The equipment for drying waste lithium-ion battery black powder according to claim 1, characterized in that: A cyclone dust collector (1011) is installed in the middle of the upper surface of the dryer body (101) through a pipe. A water washing tower (1012) is connected to the side of the cyclone dust collector (1011). A chimney (1013) is connected to the side of the water washing tower (1012) through a pipe.

3. The equipment for drying waste lithium-ion battery black powder according to claim 1, characterized in that: The dryer includes a centralized dust collector (107), and a hydrogel screw feeder (1014) is provided at the other end of the dryer body (101). A drum screen (1015) is provided at the end of the hydrogel screw feeder (1014), and a magnetic separator (104) is provided at the end of the drum screen (1015). A grinder (105) and a copper-aluminum separator (106) are provided sequentially at the end of the magnetic separator (104). The upper surface of the drum screen (1015), the grinder (105) and the copper-aluminum separator (106) are all connected to the centralized dust collector (107) through pipes.

4. The equipment for drying waste lithium-ion battery black powder according to claim 1, characterized in that: The feeding processing assembly includes a crushing processing box (1031) that is fixedly installed on the upper surface of the feeding box (103) by bolts. The top of the crushing processing box (1031) is welded with a feeding hopper (1032), and a flow channel (1034) is provided at the bottom of the inside of the crushing processing box (1031).

5. The equipment for drying waste lithium-ion battery black powder according to claim 4, characterized in that: The crushing assembly includes two crushing rollers (1033) mounted inside a crushing chamber (1031) via bearings. A drive groove (1036) is provided on the side of the crushing chamber (1031). A drive gear (1037) is fixed inside the drive groove (1036) on the end surface of the crushing roller (1033). The two drive gears (1037) mesh with each other. A geared motor (1038) is fixed on the rear surface of the crushing roller (1033) on the end of the crushing roller (1033).

6. The equipment for drying waste lithium-ion battery black powder according to claim 5, characterized in that: The shielding and protection assembly includes protective retaining rings (1035) fitted onto the outer surfaces of both ends of the crushing roller (1033). A fixing ring (1039) is integrally provided on the inner surface of the protective retaining ring (1035). A fixing bolt (1030) is threadedly connected to the surface of the fixing ring (1039). An internal threaded hole matching the fixing bolt (1030) is opened on the end surface of the crushing roller (1033).

7. The equipment for drying waste lithium-ion battery black powder according to claim 5, characterized in that: The shielding and cleaning assembly includes a rubber baffle (108) fixedly installed at the bottom of the feed hopper (1032) at the top of the inside of the crushing and processing box (1031) by mounting screws. A brush (1081) is provided at the bottom of the rubber baffle (108), and the lower surface of the brush (1081) is in contact with the surface of the crushing and processing roller (1033).

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