CN219377389U - Shaping and spheroidizing system for lithium battery cathode material - Google Patents

Abstract

The application provides a shaping spheroidization system for lithium battery cathode material, including shaping spheroidization machine, sack collector, meticulous grader, cyclone collector and sack collector. The method comprises the steps of shaping and spheroidizing negative electrode material powder particles by a shaping spheroidizing machine, removing edges and corners of the powder particles to enable the powder particles to become round, obtaining a mixture of finished product particles and superfine powder, grading the mixture by a fine grading machine, discharging the finished product particles by a star-shaped discharge valve of the fine grading machine, collecting the finished product particles, collecting the superfine powder by a cyclone dust collector and a bag dust collector, thoroughly collecting the superfine powder, reducing the residual quantity of the superfine powder in the discharged air of a system, further saving materials and improving the environmental protection of the system. After the shaping and spheroidizing system processes the lithium battery cathode material with obvious edges and corners, the edges and corners of particles are effectively removed to enable the particles to become round, so that the tap density of the cathode material is improved, and the energy density of the cathode material is improved when the shaping and spheroidizing system is finally applied to a lithium ion battery.

Description

Shaping and spheroidizing system for lithium battery cathode material

Technical Field

The application relates to the technical field of shaping spheroidizing equipment, in particular to a shaping spheroidizing system for a lithium battery negative electrode material.

Background

The lithium battery negative electrode material is mainly divided into a natural graphite negative electrode material and an artificial graphite negative electrode material. The upstream of the natural graphite negative electrode material is natural graphite ore, and the upstream of the artificial graphite negative electrode material comprises needle coke, petroleum coke, pitch coke and other raw materials. The negative electrode material is used for producing and manufacturing lithium ion batteries and is finally applied to three fields of power batteries, consumer batteries and industrial energy storage batteries.

After the lithium battery cathode material is subjected to a crushing process, powder particles are irregular, and the particle edges and corners are obviously visible when the powder particles are observed under the amplification of 1000 times of an electron microscope, so that the small tap density affects the energy density of the final lithium battery.

Disclosure of Invention

The embodiment of the application provides a shaping spheroidization system for lithium battery negative electrode materials, which can effectively remove particle edges and corners to make the particles round through a shaping process so as to improve the tap density of the negative electrode materials and indirectly improve the energy density of the lithium battery.

The embodiment of the application provides a shaping and spheroidizing system for a lithium battery cathode material, which comprises a shaping and spheroidizing machine, a cloth bag collector, a fine classifier, a cyclone dust collector and a cloth bag dust collector;

the shaping spheroidizing machine is used for shaping and spheroidizing the negative electrode material powder particles, the cloth bag collector is used for collecting the shaped and spheroidized negative electrode material powder particles and sending the shaped and spheroidized negative electrode material powder particles into the fine classifier, the fine classifier is used for classifying the shaped and spheroidized negative electrode material powder particles to obtain finished product particles and superfine powder, and the finished product particles are discharged from a star-shaped discharge valve of the fine classifier;

the cyclone dust collector is used for collecting the superfine powder, when the cyclone dust collector collects the superfine powder, part of the superfine powder is discharged out of the cyclone dust collector along with air flow, and the cloth bag dust collector is used for collecting the superfine powder discharged out of the cyclone dust collector.

In a possible implementation manner, the shaping and spheroidizing system further comprises a material buffer hopper and a screw feeder, wherein the discharge end of the material buffer hopper is connected with the feed end of the screw feeder, and the discharge end of the screw feeder is connected with the feed end of the shaping and spheroidizing machine;

the material buffer hopper is used for storing materials, and is also used for discharging the materials into the screw feeder through the gravity of the materials, and the screw feeder is used for conveying the materials into the plastic spheroidizing machine at regular time and quantity.

In one possible implementation, the reshaping and spheroidizing system further comprises a magnetic foreign matter removal device;

the magnetic foreign matter removing device is arranged at the discharge port of the material buffer hopper and is used for cleaning magnetic substances mixed into powder particles of the negative electrode material.

In a possible implementation manner, the shaping and spheroidizing machine is connected with the cloth bag collector through a first pipeline, the cloth bag collector is connected with a shaping induced draft fan through a pipeline, and the shaping induced draft fan is used for providing a power source for the movement of a gas-material mixture in the first pipeline in a fluid form so as to enable shaped and spheroidized negative electrode material powder particles in the shaping and spheroidizing machine to enter the cloth bag collector;

the fine classifier is connected with the cyclone dust collector through a second pipeline, the cyclone dust collector is connected with the cloth bag dust collector through a third pipeline, the cloth bag dust collector is connected with a classifying induced draft fan through a pipeline, and the classifying induced draft fan is used for providing a power source for the movement of a gas-material mixture in the second pipeline and the third pipeline in a fluid form so that superfine powder in the fine classifier flows through the cyclone dust collector and enters the cloth bag dust collector.

In one possible implementation, the bag collector and the bag collector are each provided with a rail on top.

In one possible implementation, the fine classifier includes a classifying drum, a silo, a star-shaped discharge valve, a volute, a motor, a classifying wheel, a discharge pipe, a feed pipe, and a dispersing mechanism;

the feed bin set firmly in the one end of classifying tube, star-shaped discharge valve set up in the discharge end of feed bin, the spiral case set firmly in classifying tube's the other end, classifying tube is last be equipped with a plurality of with the walk material through-hole that the spiral case is linked together, the motor set firmly in on the spiral case, the output of motor extends to in the classifying tube, and with the classifying wheel is connected, the classifying wheel is a plurality of completely cage walk the material through-hole, be equipped with on the spiral case the discharging pipe, be equipped with on the classifying tube the inlet pipe, the inner of inlet pipe extends to in the classifying tube, and towards the classifying wheel, dispersion mechanism set firmly in the inner of inlet pipe.

In one possible implementation, the dispersing mechanism includes a fixed mount, a suspension shaft, and a plurality of dispersing blades;

the fixed frame is fixedly arranged on the inner end inner wall of the feeding pipe, the hanging rotary shaft is fixedly arranged in the middle of the fixed frame and is rotationally connected with the fixed frame, the dispersing blades are uniformly and fixedly arranged on the outer wall of the hanging rotary shaft, the dispersing blades are positioned in the feeding pipe, and when the gas mixture passes through the feeding pipe, the dispersing blades are pushed to rotate so that the gas mixture is dispersed into the classifying cylinder.

In one possible implementation, the truing and balling machine includes a housing, an internal tooth liner, a rotor assembly, a truing power mechanism, a grading assembly, and a grading power mechanism;

an annular shaping cavity and a discharge cavity are arranged in the shell, and a feeding port used for communicating an external environment with the annular shaping cavity, a discharge port used for communicating the external environment with the discharge cavity and a through hole used for communicating the annular shaping cavity with the discharge cavity are arranged on the shell;

the inner tooth lining plate is fixedly arranged on the inner wall of the annular shaping cavity;

the rotor assembly comprises a rotary disc rotor and a plurality of stirring hammers arranged at the edge of the rotary disc rotor, the rotary disc rotor is positioned in the internal tooth lining plate, the shaping power mechanism drives the rotary disc rotor to rotate to generate air vortex, and the outer ends of the stirring hammers extend out of the rotary disc rotor and form a shaping spheroidization zone with the inner ends of the internal tooth lining plate;

the classifying assembly comprises an air sealing disc, a flange disc and a plurality of blades arranged between the air sealing disc and the flange disc, wherein the blades are uniformly distributed in an annular shape, the inner sides of the blades form classifying cavities, feeding slits are arranged between the adjacent blades, the air sealing disc is rotationally connected with the through holes, the classifying power mechanism drives the air sealing disc and the flange disc to synchronously rotate, and a plurality of air flow inlets used for communicating the classifying cavities with the discharging cavities are arranged at the edges of the air sealing disc.

In a possible implementation manner, a plurality of stirring hammers are uniformly distributed in a round shape around the axis of the rotary disk rotor, and the outer end of each stirring hammer extends out of the rotary disk rotor;

a plurality of stirring hammers are arranged on the opposite sides of the rotating disc rotor, and the stirring hammers on the opposite sides of the rotating disc rotor are sequentially and alternately distributed at equal intervals;

and the outer end of each stirring hammer head is provided with a shaping chamfer.

In a possible implementation manner, the edge of the air sealing disc is provided with a plurality of slots, the slots and the blades are equal in number and correspond to each other in position one by one, the first end of each blade is fixedly connected with the flange, and the second end of each blade is spliced with the corresponding slot.

According to the shaping spheroidizing system for the lithium battery cathode material, the shaping spheroidizing machine is used for shaping and spheroidizing the cathode material powder particles, edges and corners of the powder particles are removed to enable the powder particles to become round, a mixture of finished product particles and superfine powder is obtained, the mixture is graded through the fine grading machine, the finished product particles are discharged through the star-shaped discharge valve of the fine grading machine, thereby the finished product particles are collected, superfine powder is collected through the cyclone dust collector, in the collecting process, part of superfine powder enters the bag dust collector along with the air flow discharge cyclone dust collector, the bag dust collector is used for collecting superfine powder discharged by the cyclone dust collector, so that superfine powder is thoroughly collected, the superfine powder residue in the system discharge air is reduced, materials are saved, and the environmental protection of the system is improved.

After the shaping and spheroidizing system processes the lithium battery cathode material with obvious edges and corners, the edges and corners of particles are effectively removed by observing under the amplification of an electron microscope by 1000 times, so that the vibration density of the cathode material is improved, and the energy density of the cathode material is improved when the shaping and spheroidizing system is finally applied to a lithium ion battery. The problems that the crushed lithium battery anode material is irregular, the edges and corners are clear, the tap density is small, and the energy density of the final lithium battery is affected are solved.

Drawings

Fig. 1 is a schematic structural diagram of a reshaping and spheroidizing system for a lithium battery anode material provided by the application;

FIG. 2 is a schematic view of the fine classifier of FIG. 1;

FIG. 3 is a schematic view of the dispersing mechanism of FIG. 2;

FIG. 4 is a schematic view of the structure of the micro-pulverizer of FIG. 1;

FIG. 5 is a cross-sectional view of the housing of FIG. 4 and its internal structure;

FIG. 6 is a schematic diagram of the structure of the air sealing disc in FIG. 1.

Reference numerals illustrate:

100-material buffer hopper; 200-screw feeder; 300-shaping spheroidizing machine; 400-cloth bag collector; 500-fine grader; 600-cyclone dust collector; 700-cloth bag dust collector; 800-a magnetic foreign matter removal device; 900-fencing;

310-a housing; 320-inner tooth lining plates; 330-a rotor assembly; 340-shaping power mechanism; 350-a classification component; 360-grading a power mechanism; 410-a first line; 420-shaping induced draft fan; 510-classifying cylinder; 520-bin; 530-star-shaped discharge valve; 540-volute; 550-motor; 560-classification wheel; 570-a discharge pipe; 580-feeding pipe; 590-a dispersing mechanism; 610-a second line; 710—a third line; 720-classifying induced draft fan;

311-annular shaping cavity; 312-a discharge cavity; 313-feed port; 314-a discharge port; 315-through holes; 331-rotating the disk rotor; 332-stirring hammerhead; 341-shaping the motor; 342-shaping spindle assembly; 351-sealing the air disc; 352-flange plate; 353-leaves; 354-a feed slot; 355-airflow inlet; 356-slots; 361-a classification motor; 362-staged drive shaft; 591-a fixing frame; 592-suspending the shaft; 593-dispersing blades.

Detailed Description

In order to better understand the technical solutions in the present application, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

Fig. 1 is a schematic structural diagram of a reshaping and spheroidizing system for a lithium battery anode material provided by the application. Referring to fig. 1, an embodiment of the present application provides a reshaping and spheroidizing system for a lithium battery anode material, which includes a reshaping and spheroidizing machine 300, a cloth bag collector 400, a fine classifier 500, a cyclone dust collector 600, and a cloth bag dust collector 700.

The shaping and spheroidizing machine 300 is used for shaping and spheroidizing the negative electrode material powder particles, the cloth bag collector 400 is used for collecting the shaped and spheroidized negative electrode material powder particles, the shaped and spheroidized negative electrode material powder particles are fed into the fine classifier 500, the air flow and the material mixture flow along a pipeline and equipment, when passing through the classifier 500, the air flow and the material mixture flow out from the top after entering the classifier 500 from the bottom, the fine classifier 500 is used for classifying the shaped and spheroidized negative electrode material powder particles to obtain finished product particles and superfine powder, and the finished product particles are discharged from a star-shaped discharge valve of the fine classifier 500.

When the airflow and the ultrafine powder pass through the cyclone dust collector 600, the airflow and the ultrafine powder spirally fall into the bottom from the upper part and flow out from the spiral center back to the upper part, the cyclone dust collector 600 is used for collecting the ultrafine powder mostly to obtain cyclone tail powder, when the cyclone dust collector 600 collects the ultrafine powder, a small part of the ultrafine powder is discharged out of the cyclone dust collector 600 along with the airflow and enters the cloth bag dust collector 700, the airflow and the small part of the ultrafine powder enter the cloth bag dust collector 700 from the lower part and flow out through the cloth bag net, the cloth bag dust collector 700 is used for collecting the small part of the ultrafine powder discharged by the cyclone dust collector 600 to obtain the ultrafine tail powder, so that the ultrafine powder is thoroughly collected, the residue of the ultrafine powder in the discharged air of the system is reduced, the material is saved, and the environmental protection of the system is improved.

This application is through plastic balling machine 300 to negative pole material powder granule plastic balling, get rid of powder granule edges and corners and make it become round, obtain the mixture of finished product granule and superfine powder, it is hierarchical to the mixture through the fine classification machine 500, make finished product granule by the star discharge valve of fine classification machine 500 discharge, thereby collect finished product granule, and collect superfine powder through cyclone 600, the in-process is collected, partial superfine powder gets into cloth bag dust collector 700 along with the air current discharge cyclone 600, cloth bag dust collector 700 collects by cyclone 600 exhaust superfine powder, thereby thorough collection superfine powder, reduce the superfine powder residual quantity in the system exhaust air, and then save the material, improve system environmental protection.

After the shaping and spheroidizing system processes the lithium battery cathode material with obvious edges and corners, the edges and corners of particles are effectively removed by observing under the amplification of an electron microscope by 1000 times, so that the vibration density of the cathode material is improved, and the energy density of the cathode material is improved when the shaping and spheroidizing system is finally applied to a lithium ion battery. The problems that the crushed lithium battery anode material is irregular, the edges and corners are clear, the tap density is small, and the energy density of the final lithium battery is affected are solved.

With continued reference to fig. 1, the plastic spheroidizing system further includes a material buffer hopper 100 and a screw feeder 200, wherein a discharge end of the material buffer hopper 100 is connected with a feed end of the screw feeder 200, and a discharge end of the screw feeder 200 is connected with a feed end of the plastic spheroidizing machine 300.

The material buffer hopper 100 is used for storing materials, and is also used for discharging the materials into the screw feeder 200 through the gravity of the materials, and the screw feeder 200 is used for conveying the materials into the shaping spheroidizing machine 300 at regular time and quantity, so that automatic stable feeding is realized.

With continued reference to fig. 1, the shaping and spheroidizing system further includes a magnetic foreign matter removing device 800, where the magnetic foreign matter removing device 800 removes magnetic foreign matters mixed in the powder particles of the negative electrode material through a magnet, and is conventional impurity removing equipment, and the magnetic foreign matter removing device 800 is disposed at a discharge port of the material buffer hopper 100, and is used for cleaning magnetic matters mixed in the powder particles of the negative electrode material.

With continued reference to fig. 1, the shaping and spheroidizing machine 300 is connected to the bag collector 400 through a first pipeline 410, the bag collector 400 is connected to a shaping induced draft fan 420 through a pipeline, and the shaping induced draft fan 420 is used for providing a power source for the movement of the gas mixture in the first pipeline 410 in a fluid form, so that the shaped and spheroidized negative electrode material powder particles in the shaping and spheroidizing machine 300 enter the bag collector 400.

The fine classifier 500 is connected with the cyclone dust collector 600 through a second pipeline 610, the cyclone dust collector 600 is connected with the cloth bag dust collector 700 through a third pipeline 710, the cloth bag dust collector 700 is connected with a classifying induced draft fan 720 through a pipeline, and the classifying induced draft fan 720 is used for providing a power source for the movement of the gas-material mixture in the second pipeline 610 and the third pipeline 710 in a fluid form so that the superfine powder in the fine classifier 500 flows through the cyclone dust collector 600 and enters the cloth bag dust collector 700.

With continued reference to fig. 1, the tops of the bag collector 400 and the bag collector 700 are each provided with a fence 900 to prevent the fall of workers and to improve the safety of the system.

Fig. 2 is a schematic view of the fine classifier of fig. 1, and referring to fig. 2, the fine classifier 500 includes a classifying drum 510, a bin 520, a star-shaped discharge valve 530, a volute 540, a motor 550, a classifying wheel 560, a discharge pipe 570, a feed pipe 580, and a dispersing mechanism 590.

The classifying tube 510 is tubular, the bin 520 is fixedly arranged at one end of the classifying tube 510, preferably at the bottom end, and is used for collecting and storing finished product particles through particle gravity, the star-shaped discharge valve 530 is arranged at the discharge end of the bin 520, and when the star-shaped discharge valve 530 is opened, the finished product particles can be discharged, so that the finished product collection is facilitated.

The spiral case 540 is fixedly arranged at the other end of the classifying tube 510, preferably arranged at the top end, the classifying tube 510 is provided with a plurality of feeding through holes 511 communicated with the spiral case 540, the motor 550 is fixedly arranged on the spiral case 540 through a motor mounting seat, the output end of the motor 550 extends into the classifying tube 510 and is connected with the classifying wheel 560, the classifying wheel 560 completely covers the plurality of feeding through holes 511, the spiral case 540 is provided with a discharging pipe 570, the classifying tube 510 is provided with a feeding pipe 580, the feeding pipe 580 has a certain length, the inner end of the feeding pipe 580 extends into the classifying tube 510 and faces the classifying wheel 560, and the dispersing mechanism 590 is fixedly arranged at the inner end of the feeding pipe 580.

When the cyclone dust collector is used, under the action of the induced draft fan, air flows through the feeding pipe 580, the classifying drum 510, the classifying drum 560, the feeding through hole 511, the volute 540 and the discharging pipe 570 in sequence, when the mixture of finished product particles and ultrafine powder passes through the feeding pipe 580, the mixture is dispersed by the dispersing mechanism 590 and uniformly distributed in the classifying drum 510, the classifying drum 560 drives the motor 550 to rotate at a high speed, and the finished product particles and the ultrafine powder of the screened materials are enabled to be unable to pass through the classifying drum 560, so that the classifying drum 560 is stored in the storage bin 520, and the ultrafine powder passes through the classifying drum 560 and is discharged out of the fine classifier 500 through the feeding through hole 511, the volute 540 and the discharging pipe 570 to enter the cyclone dust collector 600, thereby realizing the separation of the finished product particles and the ultrafine powder and the collection of the finished product particles.

Fig. 3 is a schematic view of the dispersing mechanism of fig. 2. Referring to fig. 3, the dispersing mechanism 590 includes a fixing frame 591, a suspension shaft 592, and a plurality of dispersing blades 593;

the fixing frame 591 may be a cross, the fixing frame 591 is fixedly arranged on the inner end inner wall of the feeding pipe 580, the suspension rotating shaft 592 is fixedly arranged in the middle of the fixing frame 591 and is rotationally connected with the fixing frame 591, and the plurality of dispersing blades 593 are uniformly fixedly arranged on the outer wall of the suspension rotating shaft 592.

A plurality of dispersing blades 593 are positioned within the feed tube 580, and as the gas-material mixture passes through the feed tube 580, the plurality of dispersing blades 593 are urged to rotate, the rotating dispersing blades 593 break up the mixture to disperse the gas-material mixture into the classifying cylinder 510, thereby improving the classifying rate and classifying effect.

Fig. 4 is a schematic structural view of the ultra fine pulverizer of fig. 1, fig. 5 is a sectional view of the housing of fig. 4 and its internal structure, and fig. 6 is a schematic structural view of the air sealing disc of fig. 1. Referring to fig. 4-6, the swage and spheroidizer 300 includes a housing 310, an internally toothed liner 320, a rotor assembly 330, a swage power mechanism 340, a classification assembly 350, and a classification power mechanism 360.

The casing 310 includes crushing casing and ejection of compact casing, crushing casing is including smashing barrel and crushing cover, as shown in fig. 4, be equipped with annular plastic chamber 311 in the crushing barrel, the edge of the right-hand member of smashing the barrel is equipped with two feed inlets 313, the feed inlet 313 is connected with screw feeder 200, the left end of smashing the barrel is open end, crushing cover articulates in the open end of smashing the barrel, ejection of compact casing sets up in the outer wall of smashing the cover, be equipped with ejection of compact chamber 312 in the ejection of compact casing, be equipped with discharge gate 314 on the ejection of compact casing, discharge gate 314 is connected with sack catcher 400, be equipped with through-hole 315 on the crushing cover, through-hole 315 makes annular plastic chamber 311 and ejection of compact chamber 312 be linked together.

The inner tooth lining plate 320 is fixedly arranged on the inner wall of the annular shaping cavity 311, a plurality of inner teeth are arranged on the inner wall of the inner tooth lining plate 320, and the inner teeth are uniformly distributed;

the rotor assembly 330 comprises a rotary disk rotor 331 and a plurality of stirring hammers 332 arranged at the edge of the rotary disk rotor, the rotary disk rotor 331 is positioned in the internal tooth liner 320, the diameter of the rotary disk rotor 331 is smaller than the internal diameter of the internal tooth liner 320, the shaping power mechanism 340 drives the rotary disk rotor 331 to rotate and generate air vortex, the outer ends of the stirring hammers 332 extend out of the rotary disk rotor 331 and are not contacted with the internal teeth of the internal tooth liner 320, and a shaping spheroidization zone is formed between the rotor assembly 330 and the internal tooth liner 320;

the classifying assembly 350 comprises a gas sealing disc 351, a flange 352 and a plurality of blades 353 arranged between the gas sealing disc 351 and the flange 352, wherein the blades 353 are uniformly distributed in a ring shape, classifying cavities are formed on the inner sides of the blades 353, feed slits 354 are formed between the adjacent blades 353, the gas sealing disc 351 is rotationally connected with the through holes 315, the classifying power mechanism 360 drives the gas sealing disc 351 and the flange 352 to synchronously rotate, and a plurality of air flow inlets 355 used for communicating the classifying cavities with the discharge cavities 312 are formed on the edge of the gas sealing disc 351.

During operation, powder particles enter the shell 310 through any feeding hole 313, the shaping power mechanism 340 drives the rotary disk rotor 331 to rotate at a high speed, finer materials are scattered by the stirring hammerhead 332 and spread to the periphery of the rotary disk rotor, the powder enters a shaping spheroidization area formed by the rotor and the stator, the rotor assembly 330 rotates at a high speed to generate a large amount of air vortex, the materials collide with each other under the dual effects of the air vortex and the centrifugal force and are sheared and ground between the rotor and the stator, superfine grinding of the materials is realized, except that the edges and corners of the particles become round, the grading power mechanism 360 drives the grading assembly 350 to rotate, only qualified material micro powder can be discharged out of the machine along with air flow through the feeding slot 354, and unqualified coarse powder is broken back to the shaping area under the centrifugal force effect by the turbine blades 353, so that the particle edges and corners are eliminated to become round, the vibration shaping is continuously carried out, the tap density of the cathode material is improved, and the energy density of the cathode material is finally improved when the cathode material is applied to a lithium ion battery.

Referring to fig. 4, a plurality of stirring hammers 332 are uniformly distributed circularly around the axis of the rotating disk rotor 331, the outer end of each stirring hammers 332 extends out of the rotating disk rotor 331, a plurality of stirring hammers 332 are arranged on the opposite sides of the rotating disk rotor 331, the plurality of stirring hammers 332 positioned on the opposite sides of the rotating disk rotor 331 are alternately distributed at equal intervals in sequence, the crushing shaping efficiency of the superfine crusher is improved through the double-sided equidistant design of the stirring hammers 332, shaping chamfers are arranged on the outer end of each stirring hammers 332, and the inclined surfaces of the shaping chamfers face the rotating direction of the rotating disk rotor 331, so that the crushing shaping efficiency is further improved.

The shaping power mechanism 340 includes a shaping motor 341 and a shaping spindle assembly 342 disposed at an output end of the shaping motor 341, where the shaping spindle assembly 342 extends into the annular shaping cavity 311 and is fixedly connected with the rotating disk rotor 331, the rotating disk rotor 331 can be fixed on the shaping spindle assembly 342 through a connecting ring, a bolt, or other parts, and can also be fixed in other manners, the shaping spindle assembly 342 drives the rotor assembly 330 to rotate, the shaping power mechanism 340 can be a variable frequency motor, and the rotating speed can be adjusted according to actual use requirements, so that the rotor assembly 330 is controlled to rotate at a high speed.

Referring to fig. 6, a plurality of slots 356 are formed in the edge of the air sealing plate 351, the number of the slots 356 is equal to that of the blades 353, the positions of the slots 356 are in one-to-one correspondence, the first end of each blade 353 is fixedly connected with the flange 352, the second end of each blade 353 is inserted into the corresponding slot 356, the blades 353 are in interference fit with the slots 356, and large friction damping is provided between the blades 353 and the slots 356.

The classifying power mechanism 360 comprises a classifying motor 361 and a classifying transmission shaft 362 arranged at the output end of the classifying motor 361, the classifying motor 361 is arranged in a protecting cover of the discharging cavity 312, the protecting cover can isolate the classifying motor 361 and materials, the classifying transmission shaft 362 penetrates through the protecting cover and extends into the annular shaping cavity 311, the classifying transmission shaft 362 penetrates through a connecting hole in the middle of the air sealing disc 351 and is fixedly connected with the flange 352, the air sealing disc 351 and the flange 352 can be fixed on the classifying transmission shaft 362 through components such as a connecting flange, bolts and the like, and of course, the classifying power mechanism can also be fixed in other modes, the classifying power mechanism is not limited by the application, the classifying motor 361 drives the classifying transmission shaft 362 and the classifying assembly 350 to rotate, the classifying motor 361 can be a variable frequency motor, and the rotating speed of the classifying assembly 350 can be adjusted according to actual demands.

It is to be understood that, based on the several embodiments provided in the present application, those skilled in the art may combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments, where none of the embodiments exceed the protection scope of the present application.

The foregoing detailed description of the embodiments of the present application has further described the objects, technical solutions and advantageous effects thereof, and it should be understood that the foregoing is merely a specific implementation of the embodiments of the present application, and is not intended to limit the scope of the embodiments of the present application, and any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of the embodiments of the present application.

Claims (10)

1. A shaping spheroidization system for a lithium battery cathode material is characterized in that: comprises a shaping spheroidizing machine (300), a cloth bag collector (400), a fine classifier (500), a cyclone dust collector (600) and a cloth bag dust collector (700);

the shaping spheroidizer (300) is used for shaping and spheroidizing negative electrode material powder particles, the cloth bag collector (400) is used for collecting the shaped and spheroidized negative electrode material powder particles and sending the shaped and spheroidized negative electrode material powder particles into the fine classifier (500), the fine classifier (500) is used for classifying the shaped and spheroidized negative electrode material powder particles to obtain finished product particles and superfine powder, and the finished product particles are discharged by a star-shaped discharge valve of the fine classifier (500);

the cyclone dust collector (600) is used for collecting the superfine powder, when the cyclone dust collector (600) collects the superfine powder, part of the superfine powder is discharged out of the cyclone dust collector (600) along with air flow, and the bag dust collector (700) is used for collecting the superfine powder discharged by the cyclone dust collector (600).

2. The plastic spheroidization system of claim 1, wherein:

the device further comprises a material buffer hopper (100) and a screw feeder (200), wherein the discharge end of the material buffer hopper (100) is connected with the feed end of the screw feeder (200), and the discharge end of the screw feeder (200) is connected with the feed end of the shaping spheroidizing machine (300);

the material buffer hopper (100) is used for storing materials and is also used for lowering the materials into the screw feeder (200) through the gravity of the materials, and the screw feeder (200) is used for conveying the materials into the shaping spheroidizer (300) at fixed time and fixed quantity.

3. The plastic spheroidization system of claim 2, wherein:

also comprises a magnetic foreign matter removing device (800);

the magnetic foreign matter removing device (800) is arranged at the discharge port of the material buffer hopper (100), and the magnetic foreign matter removing device (800) is used for cleaning magnetic substances mixed into negative electrode material powder particles.

4. The plastic spheroidization system of claim 3, wherein:

the shaping spheroidizing machine (300) is connected with the cloth bag collector (400) through a first pipeline (410), the cloth bag collector (400) is connected with a shaping induced draft fan (420) through a pipeline, and the shaping induced draft fan (420) is used for providing a power source for the movement of the gas-material mixture in the first pipeline (410) in a fluid form so that the shaped and spheroidized negative electrode material powder particles in the shaping spheroidizing machine (300) enter the cloth bag collector (400);

the fine classifier (500) is connected with the cyclone dust collector (600) through a second pipeline (610), the cyclone dust collector (600) is connected with the cloth bag dust collector (700) through a third pipeline (710), the cloth bag dust collector (700) is connected with a classifying induced draft fan (720) through a pipeline, and the classifying induced draft fan (720) is used for providing a power source for the movement of a gas mixture in the second pipeline (610) and the third pipeline (710) in a fluid form so that superfine powder in the fine classifier (500) flows through the cyclone dust collector (600) to enter the cloth bag dust collector (700).

5. The plastic spheroidization system of claim 4, wherein:

the tops of the cloth bag collector (400) and the cloth bag dust collector (700) are respectively provided with a fence (900).

6. The plastic spheroidization system of any one of claims 1-5, wherein:

the fine classifier (500) comprises a classifying cylinder (510), a storage bin (520), a star-shaped discharge valve (530), a volute (540), a motor (550), a classifying wheel (560), a discharge pipe (570), a feed pipe (580) and a dispersing mechanism (590);

the utility model discloses a feed bin, including classifying tube (510), feed bin (520), star-shaped discharge valve (530) set firmly in the one end of classifying tube (510), spiral case (540) set firmly in classifying tube (510)'s the other end, classifying tube (510) are last be equipped with a plurality of with walk material through-hole (511) that spiral case (540) are linked together, motor (550) set firmly in spiral case (540), the output of motor (550) extends to classifying tube (510) in, and with classifying wheel (560) are connected, classifying wheel (560) cover a plurality of completely walk material through-hole (511), be equipped with on spiral case (540) discharging pipe (570), classifying tube (510) are last to be equipped with inlet pipe (580), the inner of inlet pipe (580) extend to in classifying tube (510) and towards classifying wheel (560), dispersion mechanism (590) set firmly in the inner of inlet pipe (580).

7. The plastic spheroidization system of claim 6, wherein:

the dispersing mechanism (590) comprises a fixed frame (591), a hanging rotating shaft (592) and a plurality of dispersing blades (593);

the utility model discloses a gas mixture is used to make the gas mixture get into classifying tube (510), including inlet pipe (580) and inlet pipe (580), mount (591) set firmly in the inner wall of inlet pipe (580), hang pivot (592) set firmly in the middle part of mount (591), and with mount (591) rotate and connect, a plurality of dispersing blade (593) even set firmly in the outer wall of hanging pivot (592), a plurality of dispersing blade (593) are located in inlet pipe (580), gas mixture passes through when inlet pipe (580), promote a plurality of dispersing blade (593) rotate, so that gas mixture disperses and gets into in classifying tube (510).

8. The plastic spheroidization system of any one of claims 1-5, wherein:

the truing and balling machine (300) comprises a shell (310), an internal tooth lining plate (320), a rotor assembly (330), a truing power mechanism (340), a grading assembly (350) and a grading power mechanism (360);

an annular shaping cavity (311) and a discharge cavity (312) are arranged in the shell (310), and the shell (310) is provided with a feeding port (313) for communicating an external environment with the annular shaping cavity (311), a discharge port (314) for communicating the external environment with the discharge cavity (312) and a through hole (315) for communicating the annular shaping cavity (311) with the discharge cavity (312);

the inner tooth lining plate (320) is fixedly arranged on the inner wall of the annular shaping cavity (311);

the rotor assembly (330) comprises a rotary disc rotor (331) and a plurality of stirring hammerheads (332) arranged at the edge of the rotary disc rotor (331), the rotary disc rotor (331) is positioned in the inner tooth lining plate (320), the shaping power mechanism (340) drives the rotary disc rotor (331) to rotate so as to generate air vortex, and the outer ends of the stirring hammerheads (332) extend out of the rotary disc rotor (331) and form a shaping spheroidization area with the inner ends of the inner tooth lining plate (320);

the classifying assembly (350) comprises an air sealing disc (351), a flange disc (352) and a plurality of blades (353) arranged between the air sealing disc (351) and the flange disc (352), wherein the blades (353) are uniformly distributed in a ring shape, the inner sides of the blades (353) form classifying cavities, feeding slits (354) are formed between the adjacent blades (353), the air sealing disc (351) is rotationally connected with the through holes (315), the classifying power mechanism (360) drives the air sealing disc (351) and the flange disc (352) to synchronously rotate, and a plurality of air flow inlets (355) used for communicating the classifying cavities with the discharging cavities (312) are formed at the edges of the air sealing disc (351).

9. The plastic spheroidization system of claim 8, wherein:

the stirring hammers (332) are uniformly distributed in a round shape around the axis of the rotary disk rotor (331), and the outer end of each stirring hammer (332) extends out of the rotary disk rotor (331);

a plurality of stirring hammers (332) are arranged on the opposite sides of the rotary disk rotor (331), and the stirring hammers (332) on the opposite sides of the rotary disk rotor (331) are sequentially and alternately distributed at equal intervals;

the outer end of each stirring hammer head (332) is provided with a shaping chamfer.

10. The plastic spheroidization system of claim 8, wherein:

the edge of sealing gas dish (351) is equipped with a plurality of slots (356), and a plurality of slot (356) and a plurality of blade (353) quantity equals, and the position one-to-one, every blade (353) first end all with ring flange (352) fixed connection, every blade (353) second end all with relative slot (356) are pegged graft mutually.