Lithium battery powder wet grinding distribution system

Abstract

The utility model discloses a wet grinding and distributing system for lithium battery powder. Comprising a plurality of lithium battery powder storage bins used for containing different lithium battery powder, a feeding bin arranged on the upper portions of the lithium battery powder storage bins, a discharging hopper arranged at the bottoms of the lithium battery powder storage bins, a spiral metering conveyor arranged on the discharging hopper and an airflow mixer connected with the spiral metering conveyor. The airflow mixer is connected with a dispersion kettle for forming lithium battery powder mixed slurry; wherein a vibration blanking iron removal device is arranged between the feeding bin and the lithium battery powder storage bin; the vibration blanking iron removal device comprises a butt joint bin which is in butt joint between the feeding bin and the lithium battery powder storage bin, a vibration frame which is installed in the butt joint bin through a vibration isolator, an eccentric vibration motor which is arranged on the vibration frame, and a plurality of iron removal rods which are arranged on the vibration frame at intervals. According to the utility model, the iron removal effect and the production efficiency of the lithium ion battery powder material are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery powder preparation technical field, concretely relates to a lithium battery powder wet grinding distribution system. BACKGROUND

[0002] In the preparation of lithium battery positive electrode material, the process of wet grinding after mixing lithium battery powder is involved. The specific process of wet grinding preparation includes the processes of feeding, metering, mixing, wet grinding, spraying, sintering, crushing and post-treatment of finished products after the lithium battery powder is unpacked. In order to ensure the purity of lithium battery, iron removal treatment is usually needed before wet grinding, for example, by setting multiple iron removal processes on the lithium battery wet grinding production line.

[0003] The existing technology usually uses a separate process and a separate iron removal device for lithium battery powder iron removal, which has the following disadvantages: on the one hand, the contact between lithium battery powder and iron removal elements is not uniform and sufficient, resulting in poor iron removal effect; on the other hand, setting multiple iron removal processes increases the additional production time and reduces the production efficiency of lithium battery preparation. UTILITY MODEL CONTENT

[0004] To solve the above problems, the utility model provides a lithium battery powder wet grinding distribution system, which aims to overcome the shortcomings of the prior art and improve the iron removal effect and production efficiency of lithium ion battery powder material. The specific technical solution is as follows:

[0005] A lithium battery powder wet grinding distribution system, comprising a plurality of lithium battery powder storage bins for placing different lithium battery powders, a feeding bin arranged on the upper part of the lithium battery powder storage bin, a discharge hopper arranged at the bottom of the lithium battery powder storage bin, a screw metering conveyor arranged on the discharge hopper, and an airflow mixer connected to the screw metering conveyor, wherein the airflow mixer is connected to a dispersion kettle for forming lithium battery powder mixed slurry; wherein a vibration feeding and iron removal device is arranged between the feeding bin and the lithium battery powder storage bin, the vibration feeding and iron removal device comprises a docking bin docked between the feeding bin and the lithium battery powder storage bin, a vibration frame mounted in the docking bin through a vibration isolator, an eccentric vibration motor arranged on the vibration frame, and a plurality of iron removal rods arranged on the vibration frame.

[0006] Preferably, the iron removal rod is an electromagnetic iron removal rod, which comprises a core shaft and a coil for generating magnetic attraction force of the core shaft when energized.

[0007] Preferably, one side of the vibration frame is provided with a support seat, and the other side of the vibration frame is provided with a transmission box, the transmission box is provided with an input shaft and a plurality of rotating output shafts, the motor shaft of the eccentric vibration motor is connected with the input shaft of the transmission box, and one end of the iron core shaft of each electromagnetic iron removal rod is rotationally arranged on the support seat.

[0008] Preferably, the transmission box is a gear transmission box.

[0009] Preferably, the support seat is provided with an iron removal rod mounting hole for rotationally mounting the iron core shaft, and the coil is fixedly arranged in the iron removal rod mounting hole, and one end of the iron core shaft is rotationally arranged in the iron removal rod mounting hole and placed in the inner hole of the coil.

[0010] Preferably, a sealing ring is arranged between the hole opening part of the iron removal rod mounting hole and the iron core shaft.

[0011] As a further improvement of the utility model, a plurality of iron removal disc plates are arranged on the outer circle of the iron core shaft in an axial direction, and the iron removal disc plates on adjacent iron core shafts are arranged in turn and staggered.

[0012] Preferably, the outer circle surface of the iron core shaft and the surface of the iron removal disc plate are both provided with a wear-resistant coating.

[0013] Preferably, the wear-resistant coating is a ceramic coating or a hard alloy coating.

[0014] As a further improvement of the utility model, a drawer that can be moved out of the docking bin is arranged below the vibration frame on the docking bin, and the drawer is supported on a guide rail.

[0015] Preferably, a drawer box is arranged on the outside of the docking bin, and a servo electric push rod for moving the drawer from the docking bin to the drawer box is further arranged on the docking bin.

[0016] Preferably, the servo electric push rod is arranged on the other side of the docking bin relative to the drawer box, and the end of the telescopic rod of the servo electric push rod is connected with the drawer.

[0017] Preferably, a dust collector is connected with the dust removal pipeline at the upper end of the drawer box.

[0018] In the utility model, the discharge end of the spiral metering conveyor is connected with the feeding bin of the airflow mixer through a flexible connecting pipe.

[0019] In the utility model, the discharge pipe of the airflow mixer is connected with the dispersion kettle through a flexible connecting pipe.

[0020] The airflow mixing machine is arranged on the base, and a weighing sensor is arranged between the airflow mixing machine and the base.

[0021] Preferably, a secondary iron remover is further arranged between the discharge hopper and the screw metering conveyor.

[0022] Preferably, the secondary iron remover is a rotary iron remover.

[0023] The upper portion of the feeding bin is provided with a ton bag feeding opening, one side of the feeding bin is provided with a feeding door, and the other side of the feeding bin is provided with a dust removal device for preventing dust overflow during feeding.

[0024] The use method of the utility model is as follows:

[0025] After the ton bag of lithium battery powder is opened and put into the feeding bin, the lithium battery powder is de-ironed by the vibration feeding and de-ironing device and then falls into the lithium battery powder storage bin below, and then is metered by the screw metering conveyor below the lithium battery powder storage bin and is sent into the airflow mixing machine for dry mixing, and the mixed multiple lithium battery powders are sent into the dispersion kettle, are uniformly dispersed and stirred after being humidified in the dispersion kettle, so that the slurry for lithium battery powder wet grinding is formed.

[0026] The outer side of the docking warehouse is provided with an external drawer box, a drawer is arranged in the drawer box, the drawer box is connected with the inside of the docking warehouse, a guide rail is arranged between the drawer box and the docking warehouse, and the drawer is arranged on the guide rail; when it is necessary to regularly remove the magnetic particles magnetically adsorbed on the electromagnetic iron removal rod, the drawer only needs to be pulled into the position below the electromagnetic iron removal rod in the docking warehouse by the servo electric push rod, the power connected with the coil of the electromagnetic iron removal rod is cut off, the eccentric vibration motor is started, the magnetic adsorption force of the electromagnetic iron removal rod disappears after losing power, and the magnetic particles originally magnetically adsorbed on the iron core shaft and the iron removal disc are vibrated and fall into the drawer; then the drawer is pulled back into the drawer box, and the dust collector connected with the drawer box is used to suck away the magnetic particles stored in the drawer box.

[0027] The utility model has the advantages that:

[0028] Firstly, the lithium battery powder wet grinding distribution system can realize online de-ironing when ton bags of lithium battery powder are fed, can reduce the special de-ironing process, and can improve the de-ironing production efficiency of lithium ion battery powder materials.

[0029] Second, the present invention provides a lithium battery powder wet grinding and distribution system. The vibrating material removal device features electromagnetic rods interspersed with deironing discs. The discs on adjacent electromagnetic rods are staggered, significantly increasing the contact rate between the iron particles in the lithium battery powder and the deironing discs, further enhancing the deironing effect. Furthermore, the combination of rotation and vibration of the deironing discs effectively prevents material blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural diagram of the utility model;

[0031] Figure 2 yes Figure 1 A partial enlarged view of

[0032] Figure 3 yes Figure 2 A partial enlarged view of

[0033] Figure 4 yes Figure 2 Schematic diagram of the staggered arrangement of iron removal discs on adjacent iron core shafts (top view).

[0034] In the figure: 1. Lithium battery powder storage bin, 2. Feed bin, 3. Discharge hopper, 4. Screw metering conveyor, 5. Air flow mixer, 6. Dispersion kettle, 7. Vibration blanking and iron removal device, 8. Docking bin, 9. Vibration isolator, 10. Vibration frame, 11. Eccentric vibration motor, 12. Iron removal rod, 13. Iron core shaft, 14. Coil, 15. Support seat, 16. Transmission box, 17. Iron removal rod mounting hole, 18. Sealing ring, 19. Iron removal disc, 20. Drawer, 21. Drawer box, 22. Servo electric push rod, 23. Dust removal pipeline, 24. Guide rail. DETAILED DESCRIPTION

[0035] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0036] like Figures 1 to 4The utility model discloses a lithium battery powder wet grinding distribution system's embodiment, including a plurality of number for placing different lithium battery powder's lithium battery powder storage bin 1, set up in the lithium battery powder storage bin 1 upper portion's feed bin 2, set up in the lithium battery powder storage bin 1 bottom's discharge hopper 3, set up in the discharge hopper 3 on spiral metering conveyor 4, the airflow mixing machine 5 of connection spiral metering conveyor 4, the airflow mixing machine 5 is connected for forming lithium battery powder mixed slurry's dispersion kettle 6, wherein, set up vibration blanking deironing device 7 between the feed bin 2 with the lithium battery powder storage bin 1, the vibration blanking deironing device 7 includes the butt joint in the feed bin 2 with the lithium battery powder storage bin 1's butt joint bin 8, through the vibration damper 9 installation in the butt joint bin 8's vibration frame 10, set up on the vibration frame 10's eccentric vibration motor 11, set up on the vibration frame 10 and be a plurality of number of deironing bar 12 of interval arrangement.

[0037] Preferably, the deironing bar 12 is an electromagnetic deironing bar, the electromagnetic deironing bar includes an iron core shaft 13 and a coil 14 for generating magnetic attraction force when energized.

[0038] Preferably, one side of the vibration frame 10 is provided with a support seat 15, the other side of the vibration frame 10 is provided with a transmission box 16, the transmission box 16 is provided with an input shaft and a plurality of rotary output shafts, the motor shaft of the eccentric vibration motor 11 is connected with the input shaft of the transmission box 16, one end of the iron core shaft 13 of each electromagnetic deironing bar 12 is rotatably arranged on the support seat 15, the other end of the iron core shaft 13 of the electromagnetic deironing bar 12 is correspondingly connected with the plurality of rotary output shafts.

[0039] Preferably, the transmission box 16 is a gear transmission box.

[0040] Preferably, the support seat 15 is provided with a deironing bar mounting hole 17 for rotatably mounting the iron core shaft 13, the coil 14 is fixedly arranged in the deironing bar mounting hole 17, one end of the iron core shaft 13 is rotatably arranged in the deironing bar mounting hole 17 and placed in the inner hole of the coil 17.

[0041] Preferably, a sealing ring 18 is arranged between the hole opening part of the deironing bar mounting hole 17 and the iron core shaft 13.

[0042] As a further improvement of the present application, a plurality of deironing disc plates 19 are arranged on the outer circle of the iron core shaft 13 in an axial direction, and each of the deironing disc plates 19 on adjacent iron core shafts 13 is arranged in an alternating manner.

[0043] Preferably, the outer surface of the iron core shaft 13 and the surface of the iron removal disc 19 are provided with wear-resistant coating.

[0044] Preferably, the wear-resistant coating is ceramic coating or hard alloy coating.

[0045] As a further improvement of the present application, a drawer 20 is arranged below the vibration frame 10 on the docking compartment 8 and can be moved out of the docking compartment 8, and the drawer 20 is supported on guide rails 24.

[0046] Preferably, a drawer box 21 is arranged on the outside of the docking compartment 8, and a servo electric push rod 22 is further arranged on the docking compartment 8 for moving the drawer 20 from the docking compartment 8 to the drawer box 21.

[0047] Preferably, the servo electric push rod 22 is arranged on the other side of the docking compartment 8 relative to the drawer box 21, and the extension rod end of the servo electric push rod 22 is connected with the drawer 20.

[0048] Preferably, the upper end of the drawer box 21 is connected with a dust collector through a dust removal pipeline 23.

[0049] In the present application, the discharge end of the screw metering conveyor 4 is connected with the feeding bin of the airflow mixer 5 through a flexible connecting pipe.

[0050] In the present application, the discharge pipe of the airflow mixer 5 is connected with the dispersion kettle 6 through a flexible connecting pipe.

[0051] In the present application, the airflow mixer 5 is arranged on a base, and a weighing sensor is arranged between the airflow mixer 5 and the base.

[0052] Preferably, a secondary iron remover (not shown in the figure) is further arranged between the discharge hopper 3 and the screw metering conveyor 4.

[0053] Preferably, the secondary iron remover is a rotary iron remover.

[0054] In the present application, the upper part of the feeding bin 2 is provided with a ton bag feeding port, one side of the feeding bin 2 is provided with a feeding door, and the other side of the feeding bin 2 is provided with a dust removal device for preventing dust overflow during feeding.

[0055] The use method of the present application is as follows:

[0056] The ton bags of lithium battery powder are opened and put into the feeding bin 2, the lithium battery powder is put into the lithium battery powder storage bin 1 below after being de-ironed by the vibration feeding and de-ironing device 7, then is metered by the spiral metering conveyor 4 below the lithium battery powder storage bin 1 and sent into the air flow mixer 5 for dry mixing, the mixed lithium battery powder is sent into the dispersion kettle 6, is uniformly dispersed and stirred in the dispersion kettle 6 after being humidified, so as to form the slurry for wet grinding of lithium battery powder.

[0057] The drawer box 21 is arranged outside the docking warehouse 8, the drawer 20 is arranged in the drawer box 21, the drawer box 21 is communicated with the inside of the docking warehouse 8, the guide rail 24 is arranged between the drawer box 21 and the docking warehouse 8, and the drawer 20 is arranged on the guide rail 21; when the magnetic particles on the electromagnetic de-ironing rod 12 need to be cleaned regularly, the drawer 20 is only needed to be pulled into the docking warehouse 8 and positioned below the electromagnetic de-ironing rod 12, the power supply connected with the coil 14 of the electromagnetic de-ironing rod 12 is cut off, the eccentric vibration motor 11 is started, the magnetic attraction force of the electromagnetic de-ironing rod 12 disappears after losing power, and the magnetic particles originally magnetically attached to the iron core shaft 13 and the de-ironing disc 19 are vibrated and fall into the drawer 20; then the drawer 20 is pulled back into the drawer box 21, and the magnetic particles stored in the drawer box 21 are sucked away by the dust collector connected with the drawer box 21.

[0058] The above is only the preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A lithium battery powder wet grinding and distribution system, characterized in that: It includes a number of lithium battery powder storage bins for placing different lithium battery powders, a feeding bin arranged on the upper part of the lithium battery powder storage bin, a discharge hopper arranged at the bottom of the lithium battery powder storage bin, a spiral metering conveyor arranged on the discharge hopper, and an air flow mixer connected to the spiral metering conveyor, and the air flow mixer is connected to a dispersion kettle for forming a lithium battery powder mixed slurry; wherein, a vibration blanking and iron removal device is provided between the feeding bin and the lithium battery powder storage bin, and the vibration blanking and iron removal device includes a docking bin docked between the feeding bin and the lithium battery powder storage bin, a vibration frame installed in the docking bin through a vibration isolator, an eccentric vibration motor arranged on the vibration frame, and a number of iron removal rods arranged on the vibration frame and arranged at intervals.

2. A lithium battery powder wet grinding and distribution system according to claim 1, characterized in that: The iron removal rod is an electromagnetic iron removal rod, which includes an iron core shaft and a coil for causing the iron core shaft to generate magnetic adsorption force when energized.

3. A lithium battery powder wet grinding and distribution system according to claim 2, characterized in that: A support seat is provided on one side of the vibration frame, and a transmission box is provided on the other side of the vibration frame. The transmission box is provided with an input shaft and a number of rotating output shafts. The motor shaft of the eccentric vibration motor is connected to the input shaft of the transmission box. One end of the iron core shaft of each electromagnetic iron removal rod is rotatably provided on the support seat, and the other end of the iron core shaft of the electromagnetic iron removal rod is correspondingly connected to the number of rotating output shafts.

4. A lithium battery powder wet grinding and distribution system according to claim 3, characterized in that: The support seat is provided with an iron removal rod mounting hole for rotatably mounting the iron core shaft, the coil is fixedly arranged in the iron removal rod mounting hole, and one end of the iron core shaft is rotatably arranged in the iron removal rod mounting hole and placed in the inner hole of the coil.

5. A lithium battery powder wet grinding and distribution system according to claim 4, characterized in that: A sealing ring is provided between the opening of the iron removal rod installation hole and the iron core shaft.

6. A lithium battery powder wet grinding and distribution system according to claim 2, characterized in that: A number of iron removal discs are arranged at intervals along the axial direction on the outer circle of the iron core shaft, and the iron removal discs on adjacent iron core shafts are arranged in a staggered manner.

7. The lithium battery powder wet grinding and distribution system according to claim 1, characterized in that: A drawer which can be moved outside the docking bin is arranged below the vibration frame on the docking bin, and the drawer is supported on a guide rail.

8. A lithium battery powder wet grinding and distribution system according to claim 7, characterized in that: A drawer box is provided on the outside of the docking chamber, and a servo electric push rod for moving the drawer from the docking chamber to the drawer box is also provided on the docking chamber.

9. A lithium battery powder wet grinding and distribution system according to claim 8, characterized in that: The upper end of the drawer box is connected to a dust collector through a dust removal pipeline.

10. The lithium battery powder wet grinding and distribution system according to claim 1, characterized in that: The air flow mixer is arranged on a base, and a weighing sensor is arranged between the air flow mixer and the base.

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