CN119034905A - Graphite grinding equipment for lithium battery production - Google Patents

Abstract

The invention relates to the technical field of lithium battery production, in particular to graphite grinding equipment for lithium battery production, which comprises a grinding box, a sorting box, a feeding frame and a discharging frame, the top of grinding case is fixed and is provided with the separation box, and the fixed feeding frame that is provided with in top of separation box, the top of separation box left side still is fixed and is provided with the ejection of compact frame. Through the collaborative work of feed frame and separation box, can send into the graphite material into the equipment inside with continuous stability and carry out preliminary breakage and preliminary separation, the graphite material that accords with the grinding particle diameter requirement is sent out through the ejection of compact frame rapidly, ensured the continuity processing to graphite, production efficiency has been improved, continuous preliminary breakage of graphite is carried out to the equipment, preliminary separation, continuous grinding, high-efficient filtration and accurate output organic combination, through intelligent control and high-efficient flow system, graphite grinding efficiency and finished product quality have been greatly promoted, be applicable to the high-efficient industrial application in fields such as lithium cell production, production efficiency and material utilization rate have been remarkably improved.

Description

Graphite grinding equipment for lithium battery production

Technical Field

The invention relates to the technical field of lithium battery production, in particular to graphite grinding equipment for lithium battery production.

Background

The existing graphite grinding equipment is mainly concentrated on the traditional three-stage sorting and grinding integrated equipment and sorting-grinding two-step equipment. The three-stage separation and grinding integrated equipment has simple structure, but has low separation efficiency due to smaller grinding grain size, and cannot meet the requirement of producing high-quality graphite powder. The sorting-grinding two-step equipment has higher sorting efficiency, but has low production efficiency due to more operation steps and huge equipment. In addition, at present, some devices have the defect that grinding media cannot be replaced in time, and the requirements of graphite powder with different particle sizes are difficult to meet.

Aiming at the defects of the existing equipment, the invention aims to provide novel efficient graphite grinding equipment, and the main aims of the novel efficient graphite grinding equipment comprise improving the production efficiency of graphite powder, enhancing the adaptability to graphite powder with different particle sizes and improving the sorting efficiency of the graphite powder.

The object of the invention can be achieved by a reasonable design structure. The structure comprises a grinding box, a sorting box, a feeding frame, a discharging frame, a circulating frame and the like, and the functions of grinding graphite, primarily sorting graphite, crushing graphite, outputting qualified graphite and processing unqualified graphite are respectively born. Structural design skillfully establishes ties links such as grinding, sorting, circulation, realizes continuous grinding and sorting treatment of graphite material to improve efficiency, stopped the bottleneck of traditional equipment.

Disclosure of Invention

In view of the above, the present invention provides a graphite grinding apparatus for lithium battery production, which overcomes the drawbacks of the prior art.

The graphite grinding equipment for lithium battery production comprises a grinding box, a sorting box, a feeding frame and a discharging frame, wherein the top of the grinding box is fixedly provided with the sorting box, the top of the sorting box is fixedly provided with the feeding frame, the discharging frame is fixedly arranged above the left side of the sorting box, the grinding mechanism is arranged inside the grinding box, the sorting mechanism is arranged inside the sorting box, the circulating frame is fixedly arranged on the left side of the grinding box, the top of the circulating frame is fixedly connected with the right side of the bottom of the discharging frame, the bottom of the left side of the grinding box is fixedly provided with an air inlet pipe, the inside of the grinding box is provided with a grinding cavity, and the inside of the air inlet pipe is communicated with the inside of the grinding cavity;

the sorting mechanism comprises a fixing frame and a sorting frame, wherein the fixing frame is fixedly arranged above the inside of the sorting box, the sorting frame is rotationally arranged at the bottom of the fixing frame, a sorting grid is fixedly arranged inside the fixing frame and is annularly arranged inside the fixing frame, a feeding hopper is fixedly arranged in the middle of the inside of the fixing frame, the top of the feeding hopper is communicated with the bottom of the feeding frame, the bottom of the feeding hopper extends to the upper side of the sorting frame, the upper end and the lower end of the feeding hopper are all provided with through holes, a driving frame is fixedly arranged at the top of the sorting box, a sorting motor is fixedly arranged at the top of the driving frame, and the bottom end of an output shaft of the sorting motor penetrates through the inside of the feeding hopper and is fixedly connected with the top of the sorting frame;

The grinding mechanism comprises a rotating seat and a grinding frame, the bottom of the inner wall of the grinding cavity is rotationally provided with the rotating seat, the top of the rotating seat is fixedly provided with the grinding frame, the bottom of the grinding box is fixedly provided with a grinding motor, and the top end of an output shaft of the grinding motor is fixedly connected with the bottom of the rotating seat.

Further, the inside bottom of feed frame still rotates and is provided with two crushing rollers, the output shaft of sorting motor just is located the inside rotation of drive frame and is provided with drive gear, two the one end of crushing roller is all fixed to be provided with driven gear, and the surperficial intermeshing transmission of two driven gears, and the crushing roller one end that is located the place ahead still is fixed to be provided with drive gear, and drive gear's surface and drive gear's surperficial meshing transmission.

Further, the bottom of grinding incasement portion still is fixed and is provided with the air guide ring, the fixed a plurality of air nozzle that is provided with in top of rotating the seat, and the bottom of rotating the seat rotates with the top of air guide ring and be connected, the inside of air guide ring communicates with the one end of intake pipe, and the inside of air guide ring still communicates with the inside of a plurality of air nozzle.

Further, the bottom of grinding the intracavity wall still activity is provided with the crane, grind the fixed two miniature electric jars that are provided with in case bottom, and the drive end of two miniature electric jars all with the bottom fixed connection of crane, grind the inside bottom of case and be provided with the reloading chamber, and the fixed frame that blows that is provided with in left side of reloading intracavity wall, the inside of frame and the inside intercommunication of intake pipe of blowing.

Further, one side of the bottom of the grinding box is fixedly provided with a medium delivery pipe, the inside of the medium delivery pipe is communicated with the inside of the material changing cavity, the upper part on the right side of the grinding box is fixedly provided with a medium delivery pipe, and the inside of the medium delivery pipe is communicated with the inside of the grinding cavity.

Further, the inside left side of ejection of compact frame still is fixed and is provided with the filter material net, and the inside of ejection of compact frame still rotates and is provided with the dwang, the fixed surface of dwang is provided with scrapes the material brush, the inside right side of ejection of compact frame is fixed and is provided with the water conservancy diversion frame.

Further, the movable baffle is arranged at the bottom of the inside of the circulating frame in a rotating mode, the front side and the rear side of the circulating frame are respectively provided with a control gear in a rotating mode, one side of each control gear is fixedly connected with the front side and the rear side of the movable baffle respectively, the front side and the rear side of the circulating frame are respectively fixedly provided with a servo electric cylinder, the driving ends of the two servo electric cylinders are respectively fixedly provided with a movable rack, and teeth of the two movable racks are respectively meshed with the surfaces of the two control gears for transmission.

Further, the grinding method of the graphite grinding equipment comprises the following steps:

When feeding graphite materials, the graphite material conveying pipe is communicated with the feeding hole of the feeding frame, the graphite materials entering the feeding frame are subjected to preliminary crushing treatment under the action of the two crushing rollers, the driving gear is controlled to rotate by the output shaft of the sorting motor, the driving gear is used for driving the transmission gear to rotate, the crushing rollers positioned in front are driven to rotate by the transmission gear, and as one ends of the two crushing rollers are provided with driven gears meshed with each other, the two crushing rollers synchronously rotate in opposite directions, and the two crushing rollers which relatively rotate are used for carrying out preliminary crushing treatment on the graphite materials;

secondly, after preliminary crushing of graphite materials is completed in the feeding frame, conveying the graphite crushed materials to the upper part of the sorting frame by using a feeding hopper, controlling the sorting frame to rotate by using an output shaft of a sorting motor, and splashing the graphite crushed materials to the inner wall of a sorting box after falling to the top of the sorting frame;

Step three, filling grinding media with certain size specifications into the grinding cavity, conveying the separated graphite crushed materials into the grinding cavity, controlling the rotating seat to rotate by using the output shaft of the grinding motor, driving the grinding frame to rotate in the grinding cavity by using the rotating seat, driving the grinding media and the graphite crushed materials to mix and stir in the grinding cavity by using the grinding frame, and continuously grinding the graphite crushed materials by using the grinding media;

Step four, when the graphite crushed materials are continuously ground by grinding media in the grinding cavity, blowing air upwards by utilizing a plurality of air nozzles arranged at the top of the rotating seat, forming air flow in the grinding cavity, wrapping graphite materials meeting the grinding particle size requirement by utilizing the air flow, passing through the interior of the separation box, and finally sending out and collecting from the interior of the discharging frame;

Step five, when graphite abrasive is sent out, the graphite abrasive is driven to the inside of a discharge frame through air flow, the sent graphite abrasive is filtered by a filter material net in the discharge frame, the graphite abrasive with the particle size not meeting the collection requirement is removed, and a scraping brush is driven to continuously rotate on the surface of a rotating rod through air flow, and the surface of the filter material net is continuously scraped through the scraping brush;

Step six, after the graphite abrasive which does not meet the collection requirement is blocked by the filter material net, the graphite abrasive is sent into the interior of the circulating frame by utilizing the scraping brush, wherein the inner side of the movable baffle is provided with a pressure sensor, after the graphite abrasive in the interior of the circulating frame reaches a certain amount, the movable racks are controlled to move upwards by utilizing the driving ends of the two servo electric cylinders, and the two control gears are driven to rotate by one sides of teeth of the two movable racks, so that the movable baffle is controlled to rotate in the interior of the circulating frame, the interior of the circulating frame is communicated with the interior of the grinding cavity, and the graphite abrasive collected in the interior of the circulating frame is sent into the interior of the grinding cavity to be continuously ground until the graphite abrasive completely meets the collection requirement;

step seven, when carrying out the requirement of different grinding particle diameters, need carry out the change of grinding medium, drive end through miniature electric jar control crane downwardly moving, let the inside of grinding chamber pass through the inside intercommunication of reloading chamber and medium delivery pipe, the grinding medium of grinding chamber inside is sent out through reloading chamber and medium delivery pipe this moment, the mobility of grinding medium in reloading chamber inside is guaranteed to the frame of blowing of cooperation reloading chamber one side, improve the ejection of compact efficiency of grinding medium, after accomplishing the grinding medium of grinding chamber inside is discharged, the control crane resets, utilize the medium to send into the inside of pipe to send into new grinding medium to grinding chamber.

The beneficial effects obtained by the invention by adopting the structure are as follows:

1. The graphite grinding equipment provided by the invention has the advantages that the efficiency, the continuity and the accuracy of graphite grinding treatment are improved, the organic combination of efficient preliminary crushing and separation and continuous grinding of graphite grinding materials is realized, the graphite materials can be continuously and stably fed into the equipment for preliminary crushing and preliminary separation through the cooperative work of the feeding frame and the separation box, the graphite materials meeting the grinding particle size requirement are rapidly fed out through the discharging frame, the continuous treatment of graphite is ensured, the production efficiency is improved, the equipment organically combines the continuous preliminary crushing, preliminary separation, continuous grinding, efficient filtration and accurate output of graphite, the graphite grinding efficiency and the finished product quality are greatly improved through an intelligent control and efficient flow system, the method is suitable for the efficient industrial application in the fields of lithium battery production and the like, the production efficiency and the material utilization rate are remarkably improved, the production flow is optimized, and the cost is reduced.

2. The separation mechanism is arranged in the separation box, the separation frame is driven by the separation motor to rotate to trigger the crushed aggregates to splash, the air flow is utilized to screen out graphite materials meeting the requirement on the grinding particle size, unnecessary grinding graphite materials are reduced, the grinding burden is reduced, the separated graphite materials are sent into the grinding cavity to be continuously ground, the grinding frame and a proper grinding medium are driven to operate together through the rotating seat in the grinding cavity, the graphite materials are fully mixed and continuously ground, meanwhile, the fresh air flow provided by the air inlet pipe is matched, the graphite materials meeting the requirement on the particle size are further pushed to pass through the separation box through the air drive, and the graphite materials are orderly collected through the discharging frame.

3. The filter structure is arranged in the discharging frame at one end of the device, namely, the filter material net, the rotating rod and the scraping brush are used for separating and filtering the graphite abrasive from the air flow to obtain a finished product meeting the collection requirement, and the graphite abrasive can be continuously conveyed and rapidly sorted by a size control recycling mechanism through the movable baffle and the servo electric cylinder, so that high-quality graphite meeting the lithium battery production requirement is efficiently and nondestructively produced.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

FIG. 1 is a schematic view of a graphite grinding apparatus for lithium battery production according to an embodiment of the present invention;

FIG. 2 is a schematic view showing the structure of a medium feeding pipe and a medium feeding pipe according to an embodiment of the present invention;

FIG. 3 is a schematic view showing the internal structures of a feed rack and a drive rack according to an embodiment of the present invention;

FIG. 4 is a schematic view showing the internal structure of a separation box according to an embodiment of the present invention;

FIG. 5 is a schematic view showing the internal structure of the polishing box according to the embodiment of the present invention;

FIG. 6 is a schematic view of a feed chamber and blow frame structure according to an embodiment of the present invention;

FIG. 7 is a schematic view of the construction of a micro-cylinder, a medium feed pipe and a medium feed pipe according to an embodiment of the present invention;

FIG. 8 is a schematic view of a control gear, movable rack and flapper configuration according to an embodiment of the present invention;

fig. 9 is a schematic view of a scraping brush and filter web structure according to an embodiment of the present invention.

In the figure, 1, a grinding box, 2, a separation box, 3, a feeding frame, 4, a discharging frame, 5, a circulating frame, 6, a grinding motor, 7, a rotating seat, 8, a grinding frame, 9, a grinding cavity, 10, an air inlet pipe, 11, an air nozzle, 12, a medium feeding pipe, 13, a medium delivery pipe, 14, a lifting frame, 15, a micro electric cylinder, 16, a material changing cavity, 17, an air blowing frame, 18, a fixing frame, 19, a separation grid, 20, a separation frame, 21, a feeding hopper, 22, a separation motor, 23, a driving frame, 24, a crushing roller, 25, a driving gear, 26, a transmission gear, 27, a driven gear, 28, a guide frame, 29, a rotating rod, 30, a scraping brush, 31, a filter material net, 32, a movable baffle plate, 33, a control gear, 34, a movable rack, 35, a servo electric cylinder and 36, and a guide ring.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Example 1:

Referring to fig. 1 to 9, a graphite grinding device for lithium battery production comprises a grinding box 1, a sorting box 2, a feeding frame 3 and a discharging frame 4, wherein the sorting box 2 is fixedly arranged at the top of the grinding box 1, the feeding frame 3 is fixedly arranged at the top of the sorting box 2, the discharging frame 4 is fixedly arranged above the left side of the sorting box 2, the feeding frame 3 and the discharging frame 4 are both communicated with the interior of the sorting box 2, and the bottom of the sorting box 2 is also communicated with the interior of the grinding box 1.

The inside of grinding case 1 is provided with grinding mechanism, and the inside of separation case 2 is provided with separation mechanism, and the left side of grinding case 1 still is fixed and is provided with circulation frame 5, and the top of circulation frame 5 and the right side fixed connection of ejection of compact frame 4 bottom, and the bottom of grinding case 1 left side still is fixed and is provided with intake pipe 10, and the inside of grinding case 1 is provided with grinds chamber 9, and the inside of intake pipe 10 communicates with the inside of grinding chamber 9.

When grinding graphite, the graphite is crushed by the feeding frame 3 and then is fed into the sorting box 2, the crushed graphite is primarily sorted by the sorting mechanism in the sorting box 2, the graphite with the particle size meeting the grinding particle size requirement in the crushed graphite is removed, the graphite meeting the grinding particle size requirement is fed out and collected by the discharging frame 4, the graphite which does not meet the grinding particle size requirement falls into the grinding cavity 9 after passing through the sorting mechanism, the graphite is continuously ground by the grinding mechanism in the grinding cavity 9, in the grinding process, air is continuously blown into the grinding cavity 9 by the air inlet pipe 10, flows out from the grinding cavity 9 through the sorting mechanism in the sorting box 2 and finally flows out by the discharging frame 4, the flowing air drives the graphite meeting the grinding particle size requirement in the grinding cavity 9 to be fed out by the discharging frame 4, so that the continuous grinding and sorting treatment of the graphite are realized, and the graphite grinding treatment efficiency and the grinding continuity of the graphite are ensured can be improved to a great extent by the feeding frame 3 into the inside the sorting box 2 in the grinding process of the graphite.

Specifically, the inside bottom of feed frame 3 still rotates and is provided with two crushing rollers 24, separation box 2 top is fixed and is provided with drive frame 23, and the fixed separation motor 22 that is provided with in top of drive frame 23, separation motor 22's output shaft just is located the inside rotation of drive frame 23 and is provided with drive gear 25, the one end of two crushing rollers 24 is all fixed and is provided with driven gear 27, and the surperficial intermeshing transmission of two driven gears 27, the one end of the crushing roller 24 that is located the place ahead is still fixed and is provided with drive gear 26, and the surperficial meshing transmission of drive gear 26 and drive gear 25.

When feeding graphite materials, the graphite materials entering the feeding frame 3 are subjected to preliminary crushing treatment under the action of the two crushing rollers 24 by communicating the graphite material conveying pipe with the feeding port of the feeding frame 3, the driving gear 25 is controlled to rotate by the output shaft of the sorting motor 22, the driving gear 25 is used for driving the transmission gear 26 to rotate, the crushing rollers 24 positioned in front are driven to rotate by the transmission gear 26, and one ends of the two crushing rollers 24 are provided with driven gears 27 meshed with each other, so that the two crushing rollers 24 synchronously rotate in opposite directions, and the graphite materials are subjected to preliminary crushing treatment by the two crushing rollers 24 rotating relatively, so that the grinding treatment efficiency of the graphite materials is improved.

Specifically, the sorting mechanism includes mount 18 and separation frame 20, the fixed mount 18 that is provided with in top of separation box 2 inside, and the bottom of mount 18 rotates and is provided with separation frame 20, the inside of mount 18 is still fixed and is provided with separation grid 19, and separation grid 19 is located the inside of mount 18 and is cyclic annular setting, the inside middle part of mount 18 is fixed and is provided with hopper 21, and the top of hopper 21 and the bottom intercommunication of feed frame 3, the bottom of hopper 21 extends to the top of separation frame 20, wherein the upper and lower end of hopper 21 all sets up to the through-hole, the output shaft bottom of separation motor 22 runs through the inside of hopper 21 and the top fixed connection of separation frame 20.

After the preliminary crushing of the graphite material is completed in the feeding frame 3, the crushed graphite material is conveyed to the upper portion of the sorting frame 20 by the feeding hopper 21, the sorting frame 20 is controlled to rotate by the output shaft of the sorting motor 22, the crushed graphite material falls to the top of the sorting frame 20 and splashes to the inner wall of the sorting box 2, the flowing air passes through the sorting grid 19 to enter the upper portion of the fixing frame 18 due to the flowing air in the interior of the grinding box 1, the crushed graphite material passes through the sorting grid 19 together with the flowing air to enter the upper portion of the fixing frame 18 according to the grinding particle size requirement, and finally the graphite meeting the grinding particle size requirement is conveyed out by the discharging frame 4.

Specifically, the grinding mechanism comprises a rotating seat 7 and a grinding frame 8, the bottom of the inner wall of the grinding cavity 9 is rotatably provided with the rotating seat 7, the top of the rotating seat 7 is fixedly provided with the grinding frame 8, the bottom of the grinding box 1 is fixedly provided with a grinding motor 6, and the top end of an output shaft of the grinding motor 6 is fixedly connected with the bottom of the rotating seat 7;

Through loading the grinding medium with certain size specification into the grinding cavity 9, sending the graphite crushed material after sorting into the inside of the grinding cavity 9, utilizing the output shaft control rotation seat 7 of the grinding motor 6 to rotate, utilizing the rotation seat 7 to drive the grinding frame 8 to rotate in the inside of the grinding cavity 9, driving the grinding medium and the graphite crushed material to mix and stir in the inside of the grinding cavity 9 through the grinding frame 8, and utilizing the grinding medium to continuously grind the graphite crushed material.

Further, an air guide ring 36 is fixedly arranged at the bottom of the inside of the grinding box 1, a plurality of air nozzles 11 are fixedly arranged at the top of the rotating seat 7, the bottom of the rotating seat 7 is rotationally connected with the top of the air guide ring 36, the inside of the air guide ring 36 is communicated with one end of the air inlet pipe 10, and the inside of the air guide ring 36 is also communicated with the inside of the plurality of air nozzles 11;

The graphite crushing material is continuously ground by grinding media in the grinding cavity 9, and is blown upwards by utilizing a plurality of air nozzles 11 arranged at the top of the rotating seat 7, air flow is formed in the grinding cavity 9, and graphite materials meeting the grinding particle size requirement are wrapped and clamped by the air flow, pass through the inside of the separation box 2, and finally are sent out and collected from the inside of the discharging frame 4.

Further, the bottom of grinding chamber 9 inner wall still activity is provided with crane 14, grind the fixed two miniature electric jar 15 that are provided with in case 1 bottom, and the drive end of two miniature electric jar 15 all with crane 14's bottom fixed connection, grind the inside bottom of case 1 and be provided with the reloading chamber 16, and the fixed frame 17 that blows that is provided with in left side of reloading chamber 16 inner wall, the inside of frame 17 that blows communicates with the inside of intake pipe 10, grind the fixed medium delivery tube 13 that is provided with in one side of case 1 bottom, and the inside of medium delivery tube 13 communicates with the inside of reloading chamber 16, grind the top of case 1 right side and still be fixedly provided with medium and send into pipe 12, and the inside of medium send into pipe 12 communicates with the inside of grinding chamber 9.

When the grinding media are required to be replaced according to different grinding particle sizes, the lifting frame 14 is controlled to move downwards through the driving end of the micro electric cylinder 15, the inside of the grinding cavity 9 is communicated with the inside of the medium delivery pipe 13 through the material changing cavity 16, at the moment, the grinding media in the grinding cavity 9 are delivered out through the material changing cavity 16 and the medium delivery pipe 13, the air blowing frame 17 on one side of the material changing cavity 16 is matched to ensure the mobility of the grinding media in the material changing cavity 16, the discharging efficiency of the grinding media is improved, after the grinding media in the grinding cavity 9 are discharged, the lifting frame 14 is controlled to reset, the new grinding media are delivered into the grinding cavity 9 through the medium delivery pipe 12, and the graphite materials with different grinding particle sizes are subjected to grinding processing.

Specifically, a filter material net 31 is fixedly arranged on the left side of the inside of the discharging frame 4, a rotating rod 29 is rotatably arranged in the inside of the discharging frame 4, a scraping brush 30 is fixedly arranged on the surface of the rotating rod 29, and a flow guiding frame 28 is fixedly arranged on the right side of the inside of the discharging frame 4;

When carrying out the delivery of graphite abrasive, drive the inside to ejection of compact frame 4 with graphite abrasive through the air flow, utilize the inside filter material net 31 of ejection of compact frame 4 to carry out filtration treatment to the graphite abrasive that delivers, get rid of the graphite abrasive that the particle diameter is inconsistent with the collection requirement, and utilize the air flow to drive and scrape the material brush 30 and rotate in succession at the surface of dwang 29, scrape the surface of material net 31 through scraping the material brush 30 in succession and move, guarantee the filter effect of filter material net 31 to the graphite abrasive.

Further, the movable baffle plate 32 is rotatably arranged at the bottom of the inside of the circulation frame 5, the control gears 33 are rotatably arranged at the front side and the rear side of the circulation frame 5, one sides of the two control gears 33 are fixedly connected with the front side and the rear side of the movable baffle plate 32 respectively, the servo electric cylinders 35 are fixedly arranged at the front side and the rear side of the circulation frame 5, movable racks 34 are fixedly arranged at the driving ends of the two servo electric cylinders 35, and teeth of the two movable racks 34 are meshed with the surfaces of the two control gears 33 respectively for transmission.

After the filter material net 31 blocks the graphite abrasive which does not meet the collection requirement, the graphite abrasive is sent into the circulation frame 5 by the scraping brush 30, wherein a pressure sensor is arranged on the inner side of the movable baffle 32, after the graphite abrasive in the circulation frame 5 reaches a certain amount, the movable racks 34 are controlled to move upwards by the driving ends of the two servo cylinders 35, and the two control gears 33 are driven to rotate by one sides of teeth of the two movable racks 34, so that the movable baffle 32 is controlled to rotate in the circulation frame 5, the inside of the circulation frame 5 is communicated with the inside of the grinding cavity 9, and the graphite abrasive collected in the inside of the circulation frame 5 is sent into the inside of the grinding cavity 9 to be continuously ground until the graphite abrasive completely meets the collection requirement.

Examples

Specifically, the embodiment also discloses a grinding method of graphite grinding equipment for lithium battery production, which comprises the following steps:

When feeding graphite materials, the graphite materials entering the feeding frame 3 are subjected to preliminary crushing treatment under the action of two crushing rollers 24 by communicating a graphite material conveying pipe with a feeding port of the feeding frame 3, a driving gear 25 is controlled to rotate by an output shaft of a sorting motor 22, a transmission gear 26 is driven to rotate by the driving gear 25, the crushing rollers 24 positioned in front are driven to rotate by the transmission gear 26, and as one end of each of the two crushing rollers 24 is provided with a driven gear 27 meshed with each other, the two crushing rollers 24 synchronously rotate in opposite directions, and the graphite materials are subjected to preliminary crushing treatment by the two crushing rollers 24 rotating relatively;

Step two, after the preliminary crushing of graphite materials is finished in the feeding frame 3, the crushed graphite materials are conveyed to the upper part of the sorting frame 20 by using the feeding hopper 21, the sorting frame 20 is controlled to rotate by using the output shaft of the sorting motor 22, the crushed graphite materials fall to the top of the sorting frame 20 and then splash towards the inner wall of the sorting box 2, as flowing air exists in the grinding box 1 towards the inside of the sorting box 2, the flowing air passes through the sorting grid 19 to enter the upper part of the fixing frame 18, the crushed graphite materials which meet the grinding particle size requirement pass through the sorting grid 19 together with the flowing air to enter the upper part of the fixing frame 18, and finally the graphite which meets the grinding particle size requirement is conveyed out by the discharging frame 4;

Step three, filling grinding media with certain size specifications into the grinding cavity 9, then conveying the separated graphite crushed materials into the grinding cavity 9, controlling the rotating seat 7 to rotate by using the output shaft of the grinding motor 6, driving the grinding frame 8 to rotate in the grinding cavity 9 by using the rotating seat 7, driving the grinding media and the graphite crushed materials to mix and stir in the grinding cavity 9 by using the grinding frame 8, and continuously grinding the graphite crushed materials by using the grinding media;

step four, when the graphite crushed materials are continuously ground by grinding media in the grinding cavity 9, blowing air upwards by utilizing a plurality of air nozzles 11 arranged at the top of the rotating seat 7, forming air flow in the grinding cavity 9, wrapping graphite materials meeting the grinding particle size requirement by utilizing the air flow, passing through the interior of the sorting box 2, and finally sending out and collecting from the interior of the discharging frame 4;

Step five, when graphite abrasives are sent out, the graphite abrasives are driven to the inside of the discharging frame 4 through air flow, the sent graphite abrasives are filtered by using a filter material net 31 in the discharging frame 4, the graphite abrasives with the particle size not meeting the collection requirement are removed, the scraping brush 30 is driven to continuously rotate on the surface of the rotating rod 29 through air flow, and the surface of the filter material net 31 is continuously scraped through the scraping brush 30;

Step six, after the filter material net 31 blocks graphite abrasive which does not meet the collection requirement, the graphite abrasive is sent into the circulation frame 5 by utilizing the scraping brush 30, wherein a pressure sensor is arranged at the inner side of the movable baffle plate 32, after the graphite abrasive in the circulation frame 5 reaches a certain amount, the movable racks 34 are controlled to move upwards by utilizing the driving ends of the two servo electric cylinders 35, and the two control gears 33 are driven to rotate by one sides of teeth of the two movable racks 34, so that the movable baffle plate 32 is controlled to rotate in the circulation frame 5, the inside of the circulation frame 5 is communicated with the inside of the grinding cavity 9, and the graphite abrasive collected in the inside of the circulation frame 5 is sent into the inside of the grinding cavity 9 to be continuously ground until the graphite abrasive meets the collection requirement;

Step seven, when the requirements of different grinding particle sizes are met, grinding media are required to be replaced, the lifting frame 14 is controlled to move downwards through the driving end of the miniature electric cylinder 15, the inside of the grinding cavity 9 is communicated with the inside of the medium delivery pipe 13 through the material changing cavity 16, at the moment, the grinding media in the grinding cavity 9 are delivered out through the material changing cavity 16 and the medium delivery pipe 13, the air blowing frame 17 on one side of the material changing cavity 16 is matched to ensure the mobility of the grinding media in the material changing cavity 16, the discharging efficiency of the grinding media is improved, after the grinding media in the grinding cavity 9 are discharged, the lifting frame 14 is controlled to reset, and new grinding media are delivered into the grinding cavity 9 through the medium delivery pipe 12.

And all that is not described in detail in this specification is well known to those skilled in the art.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (8)

1. The graphite grinding equipment for lithium battery production comprises a grinding box (1), a sorting box (2), a feeding frame (3) and a discharging frame (4), wherein the sorting box (2) is fixedly arranged at the top of the grinding box (1), the feeding frame (3) is fixedly arranged at the top of the sorting box (2), the discharging frame (4) is fixedly arranged above the left side of the sorting box (2), and the graphite grinding equipment is characterized in that a grinding mechanism is arranged in the grinding box (1), a sorting mechanism is arranged in the sorting box (2), a circulating frame (5) is fixedly arranged at the left side of the grinding box (1), the top of the circulating frame (5) is fixedly connected with the right side of the bottom of the discharging frame (4), an air inlet pipe (10) is fixedly arranged at the bottom of the left side of the grinding box (1), a grinding cavity (9) is arranged in the grinding box (1), and the air inlet pipe (10) is communicated with the grinding cavity (9);

The sorting mechanism comprises a fixing frame (18) and a sorting frame (20), wherein the fixing frame (18) is fixedly arranged above the inside of the sorting box (2), the sorting frame (20) is rotatably arranged at the bottom of the fixing frame (18), a sorting grid (19) is fixedly arranged inside the fixing frame (18), the sorting grid (19) is annularly arranged inside the fixing frame (18), a feeding hopper (21) is fixedly arranged in the middle of the inside of the fixing frame (18), the top of the feeding hopper (21) is communicated with the bottom of the feeding frame (3), the bottom of the feeding hopper (21) extends to the upper side of the sorting frame (20), the upper end and the lower end of the feeding hopper (21) are both provided with through openings, a driving frame (23) is fixedly arranged at the top of the sorting box (2), a sorting motor (22) is fixedly arranged at the top of the driving frame (23), and the bottom end of an output shaft of the sorting motor (22) penetrates through the inside of the feeding hopper (21) and is fixedly connected with the top of the sorting frame (20);

The grinding mechanism comprises a rotating seat (7) and a grinding frame (8), the rotating seat (7) is arranged at the bottom of the inner wall of the grinding cavity (9), the grinding frame (8) is fixedly arranged at the top of the rotating seat (7), the grinding motor (6) is fixedly arranged at the bottom of the grinding box (1), and the top end of an output shaft of the grinding motor (6) is fixedly connected with the bottom of the rotating seat (7).

2. The graphite grinding equipment for lithium battery production according to claim 1, wherein the bottom inside the feeding frame (3) is further rotatably provided with two crushing rollers (24), the output shaft of the sorting motor (22) is positioned inside the driving frame (23) and rotatably provided with a driving gear (25), one ends of the two crushing rollers (24) are fixedly provided with driven gears (27), the surfaces of the two driven gears (27) are in meshed transmission, one end of the front crushing roller (24) is further fixedly provided with a transmission gear (26), and the surface of the transmission gear (26) is in meshed transmission with the surface of the driving gear (25).

3. The graphite grinding equipment for lithium battery production according to claim 1, wherein an air guide ring (36) is fixedly arranged at the bottom of the interior of the grinding box (1), a plurality of air nozzles (11) are fixedly arranged at the top of the rotating seat (7), the bottom of the rotating seat (7) is rotationally connected with the top of the air guide ring (36), the interior of the air guide ring (36) is communicated with one end of the air inlet pipe (10), and the interior of the air guide ring (36) is also communicated with the interior of the plurality of air nozzles (11).

4. The graphite grinding equipment for lithium battery production according to claim 1, wherein a lifting frame (14) is further movably arranged at the bottom of the inner wall of the grinding cavity (9), two miniature electric cylinders (15) are fixedly arranged at the bottom of the grinding box (1), driving ends of the two miniature electric cylinders (15) are fixedly connected with the bottom of the lifting frame (14), a material changing cavity (16) is arranged at the bottom of the inner wall of the grinding box (1), a blowing frame (17) is fixedly arranged at the left side of the inner wall of the material changing cavity (16), and the inner part of the blowing frame (17) is communicated with the inner part of the air inlet pipe (10).

5. A graphite grinding equipment for lithium battery production according to claim 4, wherein a medium delivery pipe (13) is fixedly arranged on one side of the bottom of the grinding box (1), the inside of the medium delivery pipe (13) is communicated with the inside of the material changing cavity (16), a medium delivery pipe (12) is fixedly arranged above the right side of the grinding box (1), and the inside of the medium delivery pipe (12) is communicated with the inside of the grinding cavity (9).

6. The graphite grinding equipment for lithium battery production according to claim 1, wherein a filter material net (31) is fixedly arranged on the left side of the inside of the discharging frame (4), a rotating rod (29) is rotatably arranged in the inside of the discharging frame (4), a scraping brush (30) is fixedly arranged on the surface of the rotating rod (29), and a flow guiding frame (28) is fixedly arranged on the right side of the inside of the discharging frame (4).

7. The graphite grinding equipment for lithium battery production according to claim 1, wherein a movable baffle plate (32) is rotatably arranged at the bottom of the interior of the circulating frame (5), control gears (33) are rotatably arranged at the front side and the rear side of the circulating frame (5), one sides of the two control gears (33) are fixedly connected with the front side and the rear side of the movable baffle plate (32) respectively, servo cylinders (35) are fixedly arranged at the front side and the rear side of the circulating frame (5), movable racks (34) are fixedly arranged at the driving ends of the two servo cylinders (35), and teeth of the two movable racks (34) are in meshed transmission with surfaces of the two control gears (33) respectively.

8. A graphite grinding apparatus for lithium battery production according to any one of claims 1 to 7, characterized in that the grinding method of the graphite grinding apparatus comprises the steps of:

When feeding graphite materials, the graphite material conveying pipe is communicated with a feeding hole of a feeding frame (3), the graphite materials entering the feeding frame (3) are subjected to preliminary crushing treatment under the action of two crushing rollers (24), a driving gear (25) is controlled to rotate through an output shaft of a sorting motor (22), a driving gear (26) is driven to rotate by the driving gear (25), the crushing rollers (24) positioned in front are driven to rotate through the driving gear (26), and as one ends of the two crushing rollers (24) are provided with driven gears (27) meshed with each other, the two crushing rollers (24) synchronously rotate in opposite directions, and the two crushing rollers (24) rotating relatively are used for preliminary crushing treatment of the graphite materials;

Secondly, after preliminary crushing of graphite materials is completed in the feeding frame (3), conveying the graphite crushed materials to the upper part of the separation frame (20) by using a feeding hopper (21), controlling the separation frame (20) to rotate by using an output shaft of a separation motor (22), and splashing the graphite crushed materials to the inner wall of the separation box (2) after falling to the top of the separation frame (20), wherein flowing air is arranged in the separation box (2) in the grinding box (1), passes through a separation grid (19) to enter the upper part of the fixed frame (18), passes through the separation grid (19) together with the flowing air along with the grinding particle size requirement in the graphite crushed materials to enter the upper part of the fixed frame (18), and finally conveying the graphite meeting the grinding particle size requirement out by using a discharging frame (4);

step three, filling grinding media with certain size specifications into the grinding cavity (9), conveying the separated graphite crushed materials into the grinding cavity (9), controlling the rotating seat (7) to rotate by using the output shaft of the grinding motor (6), driving the grinding frame (8) to rotate in the grinding cavity (9) by using the rotating seat (7), driving the grinding media and the graphite crushed materials to mix and stir in the grinding cavity (9) by using the grinding frame (8), and continuously grinding the graphite crushed materials by using the grinding media;

Step four, when the interior of the grinding cavity (9) is continuously ground by grinding media, a plurality of air nozzles (11) arranged at the top of the rotating seat (7) are utilized to blow air upwards, air flow is formed in the interior of the grinding cavity (9), graphite materials which meet the grinding particle size requirement are wrapped and clamped by the air flow, pass through the interior of the separation box (2), and finally are sent out and collected from the interior of the discharging frame (4);

Step five, when graphite abrasive is sent out, the graphite abrasive is driven to the inside of a discharging frame (4) through air flow, the sent graphite abrasive is filtered by a filter material net (31) in the discharging frame (4) to remove the graphite abrasive with the particle size which does not meet the collection requirement, and a scraping brush (30) is driven to continuously rotate on the surface of a rotating rod (29) through air flow, and the surface of the filter material net (31) is continuously scraped by the scraping brush (30);

Step six, after the graphite abrasive which does not meet the collection requirement is blocked by the filter material net (31), the graphite abrasive is sent into the circulation frame (5) by utilizing the scraping brush (30), wherein a pressure sensor is arranged at the inner side of the movable baffle plate (32), after the graphite abrasive in the circulation frame (5) reaches a certain amount, the movable racks (34) are controlled to move upwards by utilizing the driving ends of the two servo cylinders (35), and the two control gears (33) are driven to rotate by one sides of the teeth of the two movable racks (34), so that the movable baffle plate (32) is controlled to rotate in the circulation frame (5), the interior of the circulation frame (5) is communicated with the interior of the grinding cavity (9), and the graphite abrasive collected in the circulation frame (5) is sent into the interior of the grinding cavity (9) to continue the grinding treatment until the graphite abrasive completely meets the collection requirement;

Step seven, when the requirements of different grinding particle sizes are met, grinding media are required to be replaced, the lifting frame (14) is controlled to move downwards through the driving end of the miniature electric cylinder (15), the inside of the grinding cavity (9) is communicated with the inside of the media delivery pipe (13) through the material changing cavity (16), at the moment, the grinding media in the grinding cavity (9) are delivered out through the material changing cavity (16) and the media delivery pipe (13), the air blowing frame (17) at one side of the material changing cavity (16) is matched to ensure the mobility of the grinding media in the material changing cavity (16), the discharging efficiency of the grinding media is improved, after the grinding media in the grinding cavity (9) are discharged, the lifting frame (14) is controlled to reset, and new grinding media are delivered into the grinding cavity (9) through the media delivery pipe (12).