Multistage screening and mixing device for hard carbon negative electrode material

Abstract

The utility model relates to new energy material preparation technical field especially, a kind of multistage screening mixing equipment of hard carbon negative electrode material, including hopper, hopper size setting is wide down narrow, the bottom end of hopper is provided with the semicircular chute of communication with its inside, install distribution assembly in chute, prevent blocking assembly is installed in the top of hopper, hopper bottom and located chute are fixedly installed with unloading cover, the bottom of unloading cover is fixedly connected with the unloading pipe of L shape, the one end of the transverse straight portion of unloading pipe is sleeved with link component, screening assembly is rotatably connected with the right side of link component, the utility model is prevented by the synergic design of blocking, distribution, multistage screening and accurate shunt, effectively solve the defect of the blocking problem and the insufficient defect of grading accuracy of existing equipment, provide efficient, stable equipment support for the fine processing of hard carbon negative electrode material, it is favorable to promote the uniformity and purity of subsequent electrode preparation raw material.

Description

Technical Field

[0001] This utility model relates to the field of new energy material preparation technology, and in particular to a multi-stage sieving and mixing device for hard carbon anode material. Background Technology

[0002] As the core anode material for sodium-ion batteries, the performance of hard carbon anode material is closely related to its particle size distribution, purity, and mixing uniformity. Screening and mixing equipment is a key piece of equipment in the production of hard carbon to achieve fine processing of materials. Its core function is to separate particles of different sizes by screening (removing impurities and unqualified particles). Particles that are too large or too small are not suitable for battery preparation, so it is necessary to screen suitable material particles through the equipment.

[0003] Existing screening and mixing equipment still has significant shortcomings in processing hard carbon materials. Due to the inherent tendency of hard carbon materials to agglomerate, when a large amount of hard carbon materials simultaneously enters the equipment, it can easily cause blockage of the screening components, which not only affects screening efficiency but also reduces screening accuracy. In addition, existing equipment has difficulty in accurately classifying and discharging hard carbon particles of different sizes during the screening process, failing to meet the fine requirements of hard carbon materials for particle size classification. Therefore, this application proposes a multi-stage screening and mixing equipment for hard carbon anode materials. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-stage screening and mixing device for hard carbon anode materials to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a multi-stage sieving and mixing device for hard carbon anode materials, comprising:

[0006] The hopper is sized to be wider at the top and narrower at the bottom, with a semi-circular discharge trough at the bottom that communicates with its interior.

[0007] The material distribution assembly is rotatably installed in the material feeding trough;

[0008] Anti-clogging component, installed on top of the hopper;

[0009] The material discharge cover is fixedly installed at the material discharge trough at the bottom of the hopper, and an L-shaped material discharge pipe is fixedly connected to the bottom of the material discharge cover;

[0010] The connecting component is fixedly installed at one end of the horizontal section of the feed tube;

[0011] The screening component is rotatably connected to the right side of the connecting component, and the feed pipe passes through the connecting component and is connected to the screening component;

[0012] The drive assembly is mounted on top of the connecting assembly and connected to the screening assembly;

[0013] The diversion component is installed at the right end of the screening component, and support frames are fixedly connected between the two sides of the outer wall of the diversion component and the two sides of the connecting component.

[0014] Furthermore, the horizontal and vertical sections of the feed pipe, the connecting components, the screening components, and the diversion components are all inclined downwards at 5°.

[0015] Furthermore, the screening assembly includes an outer cylinder, a first screen cylinder, and a second screen cylinder. The outer cylinder, the first screen cylinder, and the second screen cylinder are coaxially arranged from the outside to the inside. The left end of the second screen cylinder extends out of the first screen cylinder. A left sealing plate that is sealed to the outer wall of the second screen cylinder is provided at the left end of the outer cylinder and the first screen cylinder.

[0016] Furthermore, a first groove is provided on the right side of the connecting component, and a first bearing is fixedly installed in the first groove. A second groove is provided at the inner end of the first groove, and a second bearing is fixedly installed in the second groove. The left end of the outer cylinder is located in the first groove and is fixedly inserted into the first bearing. The left end of the second screen cylinder extends into the second groove and is fixedly inserted into the second bearing. The horizontal and vertical ends of the feed pipe extend into the second groove and are inserted into the second screen cylinder.

[0017] Furthermore, the diversion assembly includes an outer tube, a middle tube, and an inner tube. The outer tube is sleeved on the outside of the right end of the outer cylinder, the middle tube is sleeved on the outside of the right end of the first screen cylinder, and the inner tube is sleeved on the outside of the right end of the second screen cylinder. A sealing plate is provided between the right ends of the middle tube and the inner tube. A semi-circular right sealing plate is fixedly installed on the upper half of the right end of the diversion assembly, and a discharge pipe penetrating the outer tube is fixedly installed on the right end of the bottom of the middle tube.

[0018] Furthermore, the anti-clogging component includes a horizontal plate, a first motor, a rotating rod, and multiple sets of stirring blades. The horizontal plate is fixedly installed on the top of the hopper, the first motor is fixedly installed at the center of the top of the horizontal plate, the rotating rod is fixedly connected to the output end of the first motor and extends into the hopper, and the multiple sets of stirring blades are installed in an alternating manner at the bottom end of the rotating rod.

[0019] Furthermore, the material distribution assembly includes a second motor and a material distribution roller. The size of the material distribution roller is adapted to the material feeding trough. Three arc-shaped material distribution troughs are formed in a circular array on the surface of the material distribution roller. The second motor is fixedly installed on the outside of the hopper, and the output end of the second motor extends into the material feeding trough and is fixedly connected to the axis on one side of the material distribution roller.

[0020] Furthermore, the drive assembly includes a third motor, a gear, and a gear ring. The gear ring is fixedly sleeved on the outside of the left end of the outer cylinder. The third motor is fixedly mounted on the top of the connecting assembly. The gear is fixedly mounted on the output end of the third motor, and the bottom end of the gear meshes with the top of the gear ring.

[0021] The beneficial effects of this utility model are as follows:

[0022] By setting up anti-blocking components and material distribution components, the first motor in the anti-blocking component drives the rotating rod and the staggered stirring blades to rotate, which can break up the hard carbon material aggregated in the hopper and prevent the material from clumping and blocking the feeding channel. The second motor in the material distribution component drives the material distribution roller to rotate, and uses the three arc-shaped material distribution grooves on its surface to quantitatively transport the material, preventing a large amount of material from rushing into the screening component at once, reducing the risk of blockage from the source and ensuring the continuous and stable operation of the equipment.

[0023] The screening assembly adopts a three-stage structure with the outer cylinder, first screen cylinder, and second screen cylinder arranged coaxially from the outside to the inside. Combined with the drive assembly (the third motor drives the screening assembly to rotate through gear and gear ring transmission), it can screen hard carbon materials step by step and separate particles of different sizes. With the corresponding design of the outer, middle, and inner tubes of the diversion assembly and each screen cylinder, it can accurately discharge particles of different sizes separately (e.g., the inner tube collects the smallest particle size, the middle tube discharges the middle particle size through the discharge pipe, and the outer tube and outer cylinder work together to collect the largest particle size), meeting the fine requirements of hard carbon materials for particle size classification.

[0024] The horizontal section of the feed pipe, the connecting assembly, the screening assembly, and the diversion assembly are all inclined downwards at 5°. Combined with the rotational motion of the screening assembly, the material flow can be accelerated by the dual action of gravity and centrifugal force, reducing the retention of material in the equipment and improving screening efficiency. The connecting assembly connects the outer cylinder and the second screen cylinder through the first bearing and the second bearing, respectively, which not only ensures the smooth rotation of the screening assembly, but also enhances the structural stability and reduces wear and vibration during equipment operation. Attached Figure Description

[0025] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a front view of the present invention;

[0028] Figure 3 This is a cross-sectional structural diagram showing the connection between the hopper, the feeding roller, and the anti-blocking component of this utility model.

[0029] Figure 4 This is a schematic diagram of the connection structure of the connecting component, screening component, diversion component and driving component of this utility model;

[0030] Figure 5 This is a cross-sectional structural diagram showing the connection between the connecting component and the screening component of this utility model;

[0031] Figure 6 This is a cross-sectional structural diagram of the screening component of this utility model;

[0032] Figure 7 This is a cross-sectional structural diagram showing the connection between the diversion component and the screening component of this utility model;

[0033] In the picture:

[0034] 11. Hopper; 111. Feed chute;

[0035] 12. Anti-clogging component; 121. Horizontal plate; 122. First motor; 123. Rotating rod; 124. Stirring blade;

[0036] 131. Second motor; 132. Distributing roller;

[0037] 14. Material discharge hood;

[0038] 15. Feed pipe;

[0039] 16. Connecting assembly; 161. First groove; 162. First bearing; 163. Second groove; 164. Second bearing;

[0040] 17. Screening assembly; 171. Outer cylinder; 172. First screen cylinder; 173. Second screen cylinder;

[0041] 181. Third motor; 182. Gear; 183. Gear ring;

[0042] 19. Diverter assembly; 191. Outer tube; 192. Middle tube; 193. Inner tube; 194. Discharge tube;

[0043] 110. Support frame. Detailed Implementation

[0044] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0045] Please see Figures 1-7This utility model provides a technical solution: a multi-stage screening and mixing device for hard carbon anode materials, including a hopper 11, the hopper 11 being wider at the top and narrower at the bottom, with a semi-circular feeding trough 111 communicating with its interior at the bottom end of the hopper 11, a material distribution component installed inside the feeding trough 111, and an anti-blocking component 12 installed at the top of the hopper 11. A feeding cover 14 is fixedly installed at the bottom of the hopper 11 and at the feeding trough 111, and an L-shaped feeding pipe 15 is fixedly connected to the bottom of the feeding cover 14. A connecting component 16 is sleeved on one end of the horizontal and vertical part of the feeding pipe 15, and a screening component 17 is rotatably connected to the right side of the connecting component 16. The feeding pipe 15 passes through the connecting component 16 and communicates with the screening component 17. A drive component connected to the screening component 17 is fixedly installed on the top of the connecting component 16. A diversion component 19 is fitted on the right end of the screening component 17. Support frames 110 are fixedly connected between the two sides of the outer wall of the diversion component 19 and the two sides of the connecting component 16. The overall structure forms a complete hard carbon material screening process through the coordinated cooperation of various components, realizing integrated processing from feeding to screening to diversion, and ensuring the continuity and systematic operation of the equipment.

[0046] like Figure 1 and Figure 2 As shown, the horizontal and vertical sections of the feed pipe 15, the connecting component 16, the screening component 17, and the diversion component 19 are all inclined downward at 5°. This allows the material to flow with the help of gravity, accelerating the screening and conveying speed, reducing the retention of material in the equipment, and improving the overall processing efficiency.

[0047] like Figure 5 and Figure 6 As shown, the screening assembly 17 includes an outer cylinder 171, a first screen cylinder 172, and a second screen cylinder 173. The outer cylinder 171, the first screen cylinder 172, and the second screen cylinder 173 are coaxially arranged from the outside to the inside. The left end of the second screen cylinder 173 extends out of the first screen cylinder 172. A left sealing plate, which is sealed to the outer wall of the second screen cylinder 173, is provided at the left end of both the outer cylinder 171 and the first screen cylinder 172. The screening assembly 17 adopts a structure in which the outer cylinder 171, the first screen cylinder 172, and the second screen cylinder 173 are coaxially arranged from the outside to the inside, and the left end of the second screen cylinder 173 extends out of the first screen cylinder 172. The left sealing plate forms a multi-stage screening space, enabling the step-by-step screening of hard carbon materials, achieving the separation of particles of different sizes, and improving the fineness of the screening.

[0048] like Figure 5As shown, a first groove 161 is provided on the right side of the connecting assembly 16, and a first bearing 162 is fixedly installed in the first groove 161. A second groove 163 is provided at the inner end of the first groove 161, and a second bearing 164 is fixedly installed in the second groove 163. The left end of the outer cylinder 171 is located in the first groove 161 and is fixedly inserted into the first bearing 162; the left end of the second screen cylinder 173 extends into the second groove 163 and is fixedly inserted into the second bearing 164. The horizontal end of the feed pipe 15 extends into the second groove 163 and is inserted into the second screen cylinder 173. The connecting assembly 16 connects to the outer cylinder 171 through the first bearing 162 in the first groove 161, and connects to the second screen cylinder 173 through the second bearing 164 in the second groove 163. This ensures the stable rotation of the screening assembly 17, enhances the sealing and connection strength of the structure, reduces material leakage, reduces frictional loss during rotation, and extends the service life of the equipment.

[0049] like Figure 5 and Figure 7 As shown, the diversion assembly 19 includes an outer tube 191, a middle tube 192, and an inner tube 193. The outer tube 191 is sleeved on the outside of the right end of the outer cylinder 171, the middle tube 192 is sleeved on the outside of the right end of the first screen cylinder 172, and the inner tube 193 is sleeved on the outside of the right end of the second screen cylinder 173. A sealing plate is provided between the right ends of the middle tube 192 and the inner tube 193. A semi-circular right sealing plate is fixedly installed on the upper half of the right end of the diversion component 19. A discharge pipe 194 that penetrates the outer layer pipe 191 is fixedly installed on the right end of the bottom of the middle layer pipe 192. The outer layer pipe 191, middle layer pipe 192, and inner layer pipe 193 of the diversion component 19 are respectively sleeved on the outside of each cylinder of the screening component 17. Under the action of the sealing plate, the right sealing plate, and the discharge pipe 194, the required material particles can be accurately collected. The excessively large particles in the second screen cylinder 173 and the excessively small particles in the outer cylinder 171 are not the required material particle size and are discharged uniformly through the lower opening on the right end of the outer layer pipe 191 and the inner layer 193.

[0050] like Figure 1 and Figure 3 As shown, the anti-clogging component 12 includes a horizontal plate 121, a first motor 122, a rotating rod 123, and multiple sets of stirring blades 124. The horizontal plate 121 is fixedly installed on the top of the hopper 11, the first motor 122 is fixedly installed at the center of the top of the horizontal plate 121, the rotating rod 123 is fixedly connected to the output end of the first motor 122 and extends into the hopper 11, and the multiple sets of stirring blades 124 are staggered at the bottom end of the rotating rod 123. In the anti-clogging component 12, the first motor 122 drives the rotating rod 123 and the staggered stirring blades 124 to rotate, which can effectively disperse the hard carbon material agglomerated in the hopper 11, prevent the material from clumping and blocking the feeding channel, ensure smooth feeding, and maintain the stable operation of the equipment.

[0051] like Figure 1 and Figure 3 As shown, the material distribution assembly includes a second motor 131 and a material distribution roller 132. The size of the material distribution roller 132 is adapted to the feeding trough 111. Three arc-shaped material distribution grooves are arranged in a circular array on the surface of the material distribution roller 132. The second motor 131 is fixedly installed on the outside of the hopper 11, and the output end of the second motor 131 extends into the feeding trough 111 and is fixedly connected to the axis on one side of the material distribution roller 132. The material distribution roller 132 of the material distribution assembly is adapted to the feeding trough 111. The three arc-shaped material distribution grooves on the surface rotate under the drive of the second motor 131, which can quantitatively convey materials, avoid a large amount of materials from rushing into the screening component at the moment, reduce the risk of blockage from the source, and realize uniform and controllable feeding of materials.

[0052] like Figure 1 and Figure 4 As shown, the drive assembly includes a third motor 181, a gear 182, and a gear ring 183. The gear ring 183 is fixedly sleeved on the outside of the left end of the outer cylinder 171. The third motor 181 is fixedly installed on the top of the connecting assembly 16. The gear 182 is fixedly installed on the output end of the third motor 181, and the bottom end of the gear 182 meshes with the top of the gear ring 183. The drive assembly drives the gear 182 to rotate through the third motor 181. The gear 182 meshes with the gear ring 183 on the outer cylinder 171, driving the screening assembly 17 to rotate, providing power for the screening process, ensuring the efficient operation of the screening assembly 17, and improving the screening effect and accuracy.

[0053] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-stage sieving and mixing device for hard carbon anode materials, characterized in that, include: The hopper (11) is wide at the top and narrow at the bottom, and a semi-circular feeding trough (111) is provided at the bottom of the hopper (11) and communicates with its interior. The material distribution assembly is rotatably installed in the material feeding trough (111); An anti-clogging component (12) is installed on top of the hopper (11); The material discharge cover (14) is fixedly installed at the material discharge trough (111) at the bottom of the hopper (11), and an L-shaped material discharge pipe (15) is fixedly connected to the bottom of the material discharge cover (14). The connecting component (16) is fixedly installed at one end of the horizontal section of the feed tube (15); The screening component (17) is rotatably connected to the right side of the connecting component (16), and the feed pipe (15) passes through the connecting component (16) and is connected to the screening component (17); The drive assembly is mounted on top of the connecting assembly (16) and connected to the screening assembly (17); The diversion component (19) is installed at the right end of the screening component (17). Support frames (110) are fixedly connected between the two sides of the outer wall of the diversion component (19) and the two sides of the connecting component (16).

2. The multi-stage sieving and mixing equipment for hard carbon anode material according to claim 1, characterized in that, The horizontal section of the feed pipe (15), the connecting component (16), the screening component (17), and the diversion component (19) are all inclined downward at 5°.

3. The multi-stage sieving and mixing equipment for hard carbon anode material according to claim 1, characterized in that, The screening assembly (17) includes an outer cylinder (171), a first screen cylinder (172), and a second screen cylinder (173). The outer cylinder (171), the first screen cylinder (172), and the second screen cylinder (173) are coaxially arranged from the outside to the inside. The left end of the second screen cylinder (173) extends out of the first screen cylinder (172). A left sealing plate is provided at the left end of the outer cylinder (171) and the first screen cylinder (172) to be sealed and connected to the outer wall of the second screen cylinder (173).

4. The multi-stage sieving and mixing equipment for hard carbon anode material according to claim 3, characterized in that, The connecting component (16) has a first groove (161) on its right side, and a first bearing (162) is fixedly installed in the first groove (161). A second groove (163) is opened at the inner end of the first groove (161), and a second bearing (164) is fixedly installed in the second groove (163). The left end of the outer cylinder (171) is located in the first groove (161) and is fixedly inserted into the first bearing (162). The left end of the second screen cylinder (173) extends into the second groove (163) and is fixedly inserted into the second bearing (164). The horizontal end of the feed pipe (15) extends into the second groove (163) and is inserted into the second screen cylinder (173).

5. The multi-stage sieving and mixing equipment for hard carbon anode material according to claim 1, characterized in that, The diversion assembly (19) includes an outer tube (191), a middle tube (192), and an inner tube (193). The outer tube (191) is sleeved on the outside of the right end of the outer cylinder (171). The middle tube (192) is sleeved on the outside of the right end of the first screen cylinder (172). The inner tube (193) is sleeved on the outside of the right end of the second screen cylinder (173). A sealing plate is provided between the right ends of the middle tube (192) and the inner tube (193). A semi-circular right sealing plate is fixedly installed on the upper half of the right end of the diversion assembly (19). A discharge pipe (194) penetrating the outer tube (191) is fixedly installed on the right end of the bottom of the middle tube (192).

6. The multi-stage sieving and mixing equipment for hard carbon anode material according to claim 1, characterized in that, The anti-clogging component (12) includes a horizontal plate (121), a first motor (122), a rotating rod (123), and multiple sets of stirring blades (124). The horizontal plate (121) is fixedly installed on the top of the hopper (11). The first motor (122) is fixedly installed at the center of the top of the horizontal plate (121). The rotating rod (123) is fixedly connected to the output end of the first motor (122) and extends into the hopper (11). Multiple sets of stirring blades (124) are installed alternately at the bottom of the rotating rod (123).

7. The multi-stage sieving and mixing equipment for hard carbon anode material according to claim 1, characterized in that, The material distribution assembly includes a second motor (131) and a material distribution roller (132). The size of the material distribution roller (132) is adapted to the material feeding trough (111). Three arc-shaped material distribution troughs are arranged in a circular array on the surface of the material distribution roller (132). The second motor (131) is fixedly installed on the outside of the hopper (11), and the output end of the second motor (131) extends into the material feeding trough (111) and is fixedly connected to the axis on one side of the material distribution roller (132).

8. The multi-stage sieving and mixing equipment for hard carbon anode material according to claim 1, characterized in that, The drive assembly includes a third motor (181), a gear (182), and a gear ring (183). The gear ring (183) is fixedly sleeved on the outside of the left end of the outer cylinder (171). The third motor (181) is fixedly installed on the top of the connecting assembly (16). The gear (182) is fixedly installed on the output end of the third motor (181), and the bottom end of the gear (182) meshes with the top of the gear ring (183).

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