CN109950466B

CN109950466B - Full-automatic production equipment for lithium ion battery anode material

Info

Publication number: CN109950466B
Application number: CN201910230104.4A
Authority: CN
Inventors: 沈赟; 方艳; 吴虎雄; 刘萍萍; 邵凯
Original assignee: Feiyi New Energy Co
Current assignee: Feiyi New Energy Co
Filing date: 2019-03-26
Publication date: 2024-06-04
Anticipated expiration: 2039-03-26

Abstract

The invention provides full-automatic production equipment of lithium ion battery anode materials, which comprises a sintering system, wherein the sintering system comprises a roller hearth furnace or a rotary furnace and is used for periodically sintering materials in a sagger; the sintering system also comprises a mixing device, wherein the mixing device comprises a high-speed mixer; the mixing device further comprises a mixing pretreatment device, the mixing pretreatment device comprises a filtering device and a dust removing device, the filtering device comprises a vibrating screen, and the dust removing device comprises a dust remover. The full-automatic production equipment effectively improves sintering efficiency, has high degree of automation, reduces production cost and improves production efficiency.

Description

Full-automatic production equipment for lithium ion battery anode material

Technical Field

The invention belongs to the technical field of lithium ion batteries, and particularly relates to full-automatic production equipment for a lithium ion battery anode material.

Background

In recent years, the lithium ion battery has more common application due to excellent performance and increasingly reduced manufacturing cost in the aspects of high energy density, high voltage, no pollution, long cycle life, rapid charge and discharge and the like, and along with the continuous development of the information industry, the requirement on the lithium ion battery is higher and higher.

While the yield of lithium ion batteries is increasing and products are put on the market in large quantities, efficient and standardized mass production is urgently needed. At present, in the production process of the anode material, in order to produce the anode material product of the lithium ion battery, which has the advantages of uniform reaction, high crystallization quality, uniform gaps, small specific surface area, large apparent specific gravity and stable electrochemical performance, the anode material is often subjected to roasting treatment by utilizing the principle of crystallization and the principle of aerodynamics. At present, equipment adopted for roasting the anode material is usually a roasting furnace, and the roasting furnace in the prior art adopts a manual tool for unloading, so that the labor intensity of manual loading and unloading is high, the production efficiency is low, and the large-scale production of the anode material of the lithium ion battery is seriously influenced.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide full-automatic production equipment for lithium ion battery anode materials, which effectively improves sintering efficiency, has high automation degree, reduces production cost and improves production efficiency.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

The invention provides full-automatic production equipment of lithium ion battery anode materials, which comprises a sintering system, wherein the sintering system comprises a roller hearth furnace or a rotary furnace and is used for periodically sintering materials in a sagger.

Further, the sintering system also comprises a mixing device, wherein the mixing device comprises a high-speed mixer; the mixing device further comprises a mixing pretreatment device, the mixing pretreatment device comprises a filtering device and a dust removing device, the filtering device comprises a vibrating screen, and the dust removing device comprises a dust remover.

Further, the vibrating screen comprises a screen body, a machine base and an ultrasonic generator arranged outside, the screen body comprises a screen frame and a screen mesh arranged inside the screen frame, a perspective window is arranged on the side wall of the screen frame, an ultrasonic transducer is fixed at the bottom of the screen mesh, and the ultrasonic transducer is connected with the ultrasonic generator arranged outside through a high-frequency wire.

Further, the dust remover includes: the box body comprises a filter chamber, and an air inlet and an air outlet are also arranged in the box body; the fan is arranged at the air outlet of the box body; the ash bucket is arranged at the bottom of the filtering chamber; the rotating plate is arranged in the filtering chamber, the central shaft of the box body is perpendicular to the plane where the rotating plate is positioned, and the rotating plate is provided with a plurality of mounting holes; a plurality of filter cartridges, each of which is mounted on a corresponding mounting hole; one end of the jetting pipe penetrates through each mounting hole and is communicated with the corresponding filter cylinder; the electromagnetic pulse valve comprises a switch inlet and a switch outlet, and the switch outlet of the electromagnetic pulse valve is arranged at the other end of the blowing pipe; the air storage tank is arranged at the switch inlet of the electromagnetic pulse valve; the driving mechanism is connected with the rotating plate and used for rotating the rotating plate; and the controller is respectively connected with the electromagnetic pulse valve and the driving mechanism.

Further, the high-speed mixer comprises a mixing unit, the mixing unit comprises a mixing main body, a stirring unit arranged in the mixing main body, a flow guiding unit arranged on the inner side wall of the mixing main body and a discharge hole arranged below the right side of the mixing main body, the flow guiding unit comprises a flow guiding plate, and the flow guiding plate is of a streamline structure.

Further, the sintering system further comprises a sintering device, the sintering device comprises a furnace body and a roller way penetrating through the furnace body, the furnace body comprises a heating zone, a constant temperature zone, a cooling zone and a cooling zone, an exhaust device is further connected to the furnace body, and the exhaust device comprises an exhaust fan located at the top of the heating zone and the top of the cooling zone.

Further, the sintering system also comprises a pot stacking and separating machine, wherein the pot stacking and separating machine comprises a bracket, a transmission mechanism is arranged on the bracket, a set of centering adjustment mechanisms are respectively arranged at the left side and the right side of the transmission mechanism, each set of centering adjustment mechanism is provided with a power piece and a positioning plate fixed at the output end of the power piece, the positioning plates at the left side and the right side are oppositely arranged, and a limiting mechanism is arranged at the front end of the transmission mechanism; wherein,

The tail side of each positioning plate is provided with a positioning assembly with adjustable length, each positioning assembly is provided with an elastic bending piece protruding inwards, and the elastic bending pieces of the two positioning plates are oppositely arranged to form a squeezing and pushing structure for pushing the brake bowl to the limiting mechanism.

Further, the sintering system also comprises a bowl turning and pouring machine, and the sintering system comprises a bracket, wherein the upper end surface of the bracket is provided with a working box, both sides of the working box are provided with a transmission mechanism for transmitting a brake bowl, a brake bowl turning device is arranged in the working box and comprises a bearing platform, a limiting mechanism positioned at the front end of the bearing platform, centering adjusting mechanisms distributed on the left side and the right side of the bearing platform and a compressing mechanism for compressing the brake bowl placed at the bearing platform; wherein,

The pressing mechanism is provided with two pressing plates which are separated from two sides of the bearing platform, each pressing plate is provided with an elastic extrusion part which points to the bearing platform, wherein the lower end of each pressing plate extends to the lower part of the bearing platform and is connected to a power mechanism, and the power mechanism drives the two pressing plates to move downwards so that the elastic extrusion parts press the brake bowl.

Further, the sintering system further comprises a crushing device, the crushing device comprises a pair of roller machines, the pair of roller machines comprises a first pair of roller machines, a second pair of roller machines … … and an N pair of roller machines which are connected with each other, the pair of roller machines further comprises a feeding groove, a middle groove and a discharging hole which are arranged on a frame from top to bottom and are communicated with each other, the pair of roller machines comprises a roller device and an adjusting device, the roller device comprises a first roller and a second roller which are oppositely arranged and rotate towards the inner side, and the adjusting device comprises a gap adjusting nut, a first locking nut and a second locking nut which are oppositely arranged.

Further, the sintering system further comprises an iron remover, the iron remover comprises an iron removing chamber, the iron removing chamber comprises a body, a feeding hole arranged at the top end of the body, two movable plates which are arranged in the body and are opposite to each other, and at least one magnetic system which is connected with the two movable plates respectively, the iron removing chamber further comprises a lifting mechanism which is connected with the movable plates respectively, the lifting mechanism comprises a first fixed shaft, a second fixed shaft, a first movable shaft, a second movable shaft and a sliding part, the first fixed shaft and the second fixed shaft are installed on a bottom plate of the body, the first movable shaft is in sliding connection with the first fixed shaft, the second movable shaft is in sliding connection with the second movable shaft, the first movable shaft and the second movable shaft are installed on the movable plates respectively, and the sliding part is in sliding connection with the bottom plate of the body.

Compared with the prior art, the invention has the following technical effects: the full-automatic production equipment effectively improves sintering efficiency, has high degree of automation, reduces production cost and improves production efficiency.

The foregoing description is only an overview of the technical solutions of the present invention, and may be implemented according to the content of the specification, so that the fully automatic production equipment of the positive electrode material for lithium ion batteries and other objects, features and advantages of the present invention can be more clearly understood, and the following specific preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a vibrating screen in a fully automatic production device of a lithium ion battery anode material according to an embodiment of the present invention.

Fig. 2a is a first side view of a dust collector in a fully automatic production apparatus of a lithium ion battery cathode material according to an embodiment of the present invention.

Fig. 2b is a second side view of a dust collector in a fully automatic production apparatus of a lithium ion battery cathode material according to an embodiment of the present invention.

Fig. 2c is a schematic structural diagram of a dust remover in a fully automatic production device of a lithium ion battery anode material according to an embodiment of the present invention.

Fig. 2d is a schematic view of the structure of the rotating plate in the dust collector shown in fig. 2 c.

Fig. 2e is a schematic structural view of a filter cartridge in the dust collector shown in fig. 2 c.

Fig. 3a is a schematic structural diagram of a mixing device high-speed mixer in full-automatic production equipment of lithium ion battery anode materials according to an embodiment of the present invention.

Fig. 3b is a schematic view of a baffle structure in the high-speed mixer shown in fig. 3 a.

Fig. 3c is a schematic view of a discharge port structure in the high-speed mixer shown in fig. 3 a.

Fig. 4a is a schematic structural diagram of a double-end bowl filling machine in full-automatic production equipment of lithium ion battery anode materials according to an embodiment of the present invention.

Fig. 4b is a top view of the dual-headed bowl loader shown in fig. 4 a.

Fig. 4c is a left side view of the dual-headed bowl loader shown in fig. 4 a.

Fig. 4d is a schematic structural view of an automatic bowl loading device in the double-ended bowl loader shown in fig. 4 a.

Fig. 4e is a schematic structural diagram of the first hollow portion, the second hollow portion, and the frame of the dual-head bowl loading machine shown in fig. 4 a.

Fig. 5a is a schematic structural diagram of a pot stacking machine in a fully automatic production device of a lithium ion battery anode material according to an embodiment of the present invention.

Fig. 5b is a top view of the positioning assembly in the bowl folding machine shown in fig. 5 a.

Fig. 5c is a front view of the positioning assembly in the bowl folding machine shown in fig. 5 a.

Fig. 5d is a schematic view of the positions of the elastic bending member and the baffle in the bowl folding machine shown in fig. 5 a.

Fig. 6a is a schematic structural diagram of a roller hearth furnace in a fully automatic production device for a lithium ion battery anode material according to an embodiment of the present invention.

Fig. 6b is a schematic structural diagram of a multi-layer roller furnace in a fully automatic production device for a lithium ion battery anode material according to an embodiment of the present invention.

Fig. 6c is a schematic structural diagram of a double-layer roller furnace in a fully automatic production device of a lithium ion battery anode material according to an embodiment of the present invention.

Fig. 6d is a schematic structural diagram of a rotary kiln in a fully automatic production apparatus for a positive electrode material of a lithium ion battery according to an embodiment of the present invention.

Fig. 7a is a schematic structural diagram of a bowl turning and guiding machine in full-automatic production equipment of lithium ion battery anode materials according to an embodiment of the present invention.

Fig. 7b is a partial schematic view of the interior of the bowl-turning guide of fig. 7 a.

Fig. 7c is a schematic structural view of a sagger turning device in the sagger guide shown in fig. 7 a.

Fig. 7d is a schematic structural view of a pressing mechanism in the bowl-turning guide machine shown in fig. 7 a.

Fig. 8a is a schematic structural diagram of an iron remover in a fully automatic production device of a lithium ion battery anode material according to an embodiment of the present invention.

Fig. 8b is a side view of the iron remover of fig. 8 a.

Fig. 8c is a top view of the lifting mechanism in the iron remover of fig. 8 a.

Detailed Description

In order to further describe the technical means and effects adopted by the invention to achieve the preset purpose, the following detailed description refers to the specific implementation, method, steps, structure, characteristics and effects of a fully automatic production device for lithium ion battery cathode materials according to the invention, which are described in detail below with reference to the accompanying drawings and preferred embodiments.

The foregoing and other features, aspects, and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments when taken in conjunction with the accompanying drawings. While the invention may be susceptible to further details of embodiments and examples of means and effects for achieving the desired purpose, the drawings are provided for the purpose of reference and illustration only and are not intended to be limiting.

The embodiment of the invention provides full-automatic production equipment for lithium ion battery anode materials, which comprises a sintering system for periodically sintering materials in a sagger. The sintering system comprises a roller hearth furnace or a rotary furnace, and further comprises a mixing device, wherein the mixing device 5 comprises a high-speed mixer; the mixing device further comprises a mixing pretreatment device, the mixing pretreatment device comprises a filtering device and a dust removing device, the filtering device comprises a vibrating screen, and the dust removing device comprises a dust remover.

The mixing device 5 comprises a high-speed mixer, the mixing device further comprises a mixing pretreatment device, the mixing pretreatment device comprises a filtering device 3 and a dust removing device 4, the filtering device 3 comprises a vibrating screen, and the dust removing device 4 comprises a dust remover. Referring to fig. 1, fig. 1 is a schematic structural diagram of a vibrating screen in a fully automatic production apparatus for a lithium ion battery anode material according to an embodiment of the present invention. As shown in fig. 1, the vibrating screen 3 is an in-line vibrating screen, the vibrating screen 3 includes a screen body 310, a stand 320, and an external ultrasonic generator 330, a dust cover 3101 is disposed on the top of the screen body 310, and a feed inlet 300 is disposed on the top of the dust cover 3101. The screen body 310 is connected with the dust cover 3101 through a fastener 3103, and the fastener 3103 is a binding ring, so that the screen body is convenient to detach, and quick installation and detachment are further realized.

The screen body 310 comprises a screen frame and a screen cloth 3102 arranged in the screen frame, the screen cloth 3102 comprises a first screen cloth and a second screen cloth, the first screen cloth is located above the second screen cloth, a discharge hole 3105 is formed in the side wall of the screen frame, three discharge holes are formed in the three discharge holes, the three discharge holes are respectively formed in the first screen cloth, the second screen cloth and the bottom of the screen body 310 on the same horizontal plane, the screen frame comprises an upper frame, a middle frame and a lower frame, perspective windows 3106 are arranged on the side walls of the upper frame and the middle frame, and the material screening conditions in the screen frame can be observed conveniently.

The embodiment of the invention provides a screen 3102, the screen 3102 comprises a first screen and a second screen, the first screen is positioned above the second screen, the first screen and the second screen are respectively provided with evenly distributed screen holes, the screen hole diameter of the first screen is larger than that of the second screen, the first screen can be used for carrying out preliminary screening treatment on materials, the second screen can be used for further screening, screening is more thorough, and the screened materials are finer and finer due to multiple screening, so that the effect of efficiently screening the materials can be achieved.

Wherein, the bottoms of the first screen and the second screen are both fixed with ultrasonic transducers 301, and the ultrasonic transducers 301 are connected with the ultrasonic generator 330 through high-frequency wires. The ultrasonic transducer can introduce a low-amplitude and high-frequency ultrasonic vibration wave into the first screen and the second screen, so that the metal powder receives huge ultrasonic acceleration, thereby inhibiting blocking net factors caused by adhesion, friction, flat drop, wedge-in and the like, improving screening efficiency and net cleaning efficiency, the ultrasonic transducer 301 is connected with the ultrasonic generator 330 through a high-frequency wire, and the ultrasonic generator 330 converts electric energy into a high-frequency alternating current signal matched with the ultrasonic transducer 301. Further, the bottom of the ultrasonic generator 330 is also provided with a lifting frame, so that the height of the ultrasonic generator can be adjusted, and the operation and the use are convenient.

In another embodiment, the screen is similar to the screen 3102, and the difference is that the diameter of the screen hole of the first screen is smaller than that of the screen hole of the second screen, so that the screening effect on the metal powder is good, the metal powder can be sorted according to three grades of coarse powder, fine powder and qualified powder, and the screening precision is high.

In yet another embodiment, the screen is similar to the screen 3102, and the difference is that the diameter of the screen of the first screen is equal to the diameter of the screen of the second screen, and since the diameter of the screen of the second screen is the same as that of the screen of the first screen, the metal powder material entering from the feed inlet enters the first screen and enters the second screen to be split, so that the screening efficiency can be increased, and the pretreatment working time can be shortened.

The upper end of the base 320 is provided with a damping device 3201, and the damping device comprises a spring group, so that shaking generated during working can be effectively reduced, and the running stability of the vibrating screen is ensured; the frame 320 is internally provided with a vibration motor 3203, an upper weight 3202 is arranged at the upper end of the outer surface of the vibration motor 3203, a weighting piece is further arranged at the upper end of the upper weight 3202, a lower weight 3204 is arranged at the lower end of the outer surface of the vibration motor 3203, the upper weight 3202 and the lower weight 3204 (not counter weights) arranged at the upper end and the lower end of the vibration motor 3203 convert the motion of the motor into horizontal, vertical and inclined three-dimensional motions, and the motions are transferred to a screen, so that the screening efficiency is improved. Further, an air cooler (not shown) is disposed below the outer surface of the lower weight 3204, and an evaporator is disposed in the middle of the air cooler.

Working principle: when the material mixing pretreatment, namely sieving, is carried out, metal powder materials to be sieved are put into the sieve body 310 from the feed inlet 300, the dustproof cover 3101 is covered, the ultrasonic generator 330 and the vibration motor 3203 are started to work, and the vibration motor 3203 generates severe vibration when working, so that the metal powder materials entering the sieve body 310 are sieved under the screening of the first screen and the second screen; meanwhile, the ultrasonic generator 330 converts power frequency electric energy into a high-frequency alternating current signal matched with the ultrasonic transducer 301, the ultrasonic transducer 301 introduces a low-amplitude and high-frequency ultrasonic vibration wave to the first screen and the second screen, so that the metal powder receives huge ultrasonic acceleration, the sorting speed of the metal powder is accelerated, the blocking factors caused by adhesion, friction, flattening, wedge-in and the like are restrained, finally, unqualified materials after sorting are output from three discharge holes 3105 respectively, sorting work of the metal powder materials is completed, the qualified materials directly enter a mixing device for mixing, filtering work of the in-line screen is also the pre-mixing treatment work in the production of lithium ion battery anode materials, the materials are subjected to further screening work, and the product yield can be improved.

Referring to fig. 2a to 2c together, fig. 2a is a first side view of a dust remover in a production apparatus of a positive electrode material for a lithium ion battery according to an embodiment of the present invention, fig. 2b is a second side view of a dust remover in a production apparatus of a positive electrode material for a lithium ion battery according to an embodiment of the present invention, and fig. 2c is a schematic structural diagram of a dust remover in a production apparatus of a positive electrode material for a lithium ion battery according to an embodiment of the present invention. As shown in fig. 2a to 2c, the dust collector 4 includes a case 411, a fan 412, an ash bucket 413, a rotating plate 414, a plurality of filter cartridges 415, a blowing pipe 416, an electromagnetic pulse valve 417, an air tank 418, a driving mechanism 419, and a controller (not shown).

The housing 411 includes a filtering chamber 4110, and the housing 411 is further provided with an air inlet 4111 and an air outlet 4112, wherein the air flow carrying dust enters the filtering chamber 4110 through the air inlet 4111, and the air flow enters the fan 412 through the air outlet 4112 after being filtered by the filter cartridge 415. The air inlet 4111 may be connected to dust collecting equipment such as a unpacking port, a dust port, a sand spraying box, a vibrating screen, a crusher, a belt conveyor, etc., or a dust collecting hood may be additionally installed to collect dust.

In some embodiments, the housing 411 is further provided with a dust collection drawer 4113, the dust collection drawer 4113 for collecting dust.

Blower 412 is used to draw the airflow through filter cartridge 415 and discharge the airflow to the outside atmosphere. In some embodiments, fan 412 is a 4-72 centrifugal fan with high air volume, high air pressure, high suction and stable operation.

The dust hopper 413 is disposed at the bottom of the filtering chamber 4110, and coarse dust or dust filtered by the filter cartridge 415 falls into the dust hopper 413, and falls into the dust collection drawer 4113 through the dust hopper 413.

The rotating plate 414 is disposed in the filtering chamber 4110, and the central axis of the housing 411 is perpendicular to the plane of the rotating plate 414, and the rotating plate 414 is provided with a plurality of mounting holes 4141.

Each filter cartridge 415 is mounted on the corresponding mounting hole 4141, and the conventional filter material of the filter cartridge 415 is polyester fiber non-woven fabric (PET), and in addition, an antistatic filter cartridge, a high temperature resistant film coated filter cartridge (PP+PET) and the like are used in a matched manner, so that the filter cartridge is suitable for hundreds of working conditions. In some embodiments, the filter cartridge structure is six-ear quick-release type, and a high-quality nylon plastic six-ear end cover, an inner and outer galvanized diamond flat net and special sealing elastic chloroprene rubber are selected, and the dust removal effect is fully ensured by the wide-pleat-distance process of the factory.

One end of the blowing pipe 416 penetrates through each of the mounting holes 4141 and communicates with the corresponding filter cartridge 415; the electromagnetic pulse valve 417 includes a switch inlet and a switch outlet, and the switch outlet of the electromagnetic pulse valve 417 is mounted at the other end of the blowing pipe 416; the air storage tank 418 is installed at the switch inlet of the electromagnetic pulse valve 417; a driving mechanism 419 is connected to the rotation plate 414, the driving mechanism 419 being configured to rotate the rotation plate 414; the controller is connected to the solenoid valve 417 and the drive mechanism 419, respectively. In some embodiments, the controller is a programmable logic controller (Programmable Logic Controller, PLC).

The working principle of the dust remover provided by the embodiment is as follows:

Dust-containing gas enters the box body from the air inlet, is filtered by the filter cartridge, dust is blocked on the outer surface of the filter cartridge, and purified gas is discharged from the fan through the air outlet (or can be discharged outdoors by the air pipe). Along with the continuous operation of the main machine, the dust adhered to the outer surface of the filter cylinder is continuously increased, so that the resistance of equipment is continuously increased, the ash removal is required, and the dust removal effect of the dust remover is ensured. The pulse dust collector adopts a pulse blowing on-line/off-line ash removing mode, namely, a pulse system is started to carry out blowing ash removing when the dust removing fan operates, and the pulse ash removing system can be independently started to continue ash removing when the dust removing fan does not operate. The air storage tank is connected with an air source (the air pressure range is 0.6-0.8 Mpa), the ash cleaning process is automatically controlled by the controller, and a user can adopt a time control mode to clean ash according to the requirement. A plurality of filter cylinders are arranged in the dust remover to increase the effective filtering area of the dust remover, when a certain filter cylinder meets the ash removal setting requirement, the injection device is started to remove ash, and other filter cylinders work normally, so that the ash removal effect is achieved, the operation of equipment is not influenced, and the dust remover can continuously operate. The dust blows off into the lower dust collection drawer 4113 and is manually removed. On the one hand, when dust is excessively concentrated at a certain part of the filter cylinder, the controller can control the driving mechanism to enable the driving mechanism to drive each filter cylinder to rotate through rotating the rotating plate, so that the positions of different parts of the filter cylinder are changed, and the dust removal efficiency is further improved. On the other hand, when dust on each filter cartridge is removed, the controller can control the driving mechanism to enable the driving mechanism to drive each filter cartridge to rotate by rotating the rotating plate, and dust on the filter cartridge is removed while rotating, so that the dust removing efficiency is improved.

In some embodiments, the inner side wall of the filtering chamber 4110 is provided with a sliding track, and the edge of the rotating plate 414 is accommodated in the sliding track and can rotate in the sliding track.

In some embodiments, referring to fig. 2d, fig. 2d is a schematic structural diagram of a rotating plate in the dust collector shown in fig. 2 c. As shown in fig. 2d, the rotating plate 414 is provided with a fixing hole 4142. The driving mechanism 419 includes: the motor 4191 is connected with the transmission shaft 4192, the motor 4191 is connected with the controller, one end of the transmission shaft 4192 is connected with the motor 4191, and the other end of the transmission shaft 4192 is installed on the fixing hole 4142.

The controller sends a rotation command to the motor 4191, and the motor 4191 drives the rotation plate 414 to rotate in the slideway through the transmission shaft 4192, so that each filter cartridge 415 can be rotated.

In some embodiments, the case 411 and the rotating plate 414 are both cylindrical.

In some embodiments, referring to fig. 2e, fig. 2e is a schematic structural diagram of a filter cartridge in the dust collector shown in fig. 2 c. As shown in fig. 2e, each of the filter cartridges 415 includes: the filter cartridge body 4151 and the connecting portion 4152, the connecting portion 4152 has one end mounted on the filter cartridge body 4151, and the other end mounted on the mounting hole 4141, wherein the interior of the filter cartridge body 4151 communicates with the interior of the connecting portion 4152. In some embodiments, the connection portion 4152 is threadably coupled to the mounting hole 4141.

In some embodiments, referring to fig. 2e, each filter cartridge 415 further includes a limiting portion 4153, wherein the limiting portion 4153 is disposed on a surface of the cartridge body 4151 facing the rotating plate 414;

the rotating plate 414 is further provided with a plurality of limiting holes 4143, each limiting hole 4143 is disposed on a side edge of a corresponding one of the mounting holes 4141, and after the connecting portion 4152 is mounted in the mounting hole 4141, the limiting portion 4153 is engaged in the corresponding one of the limiting holes 4143. Therefore, it can well stabilize each filter cartridge 415 by the limiting action between the limiting holes 4143 and the limiting portions 4153.

In some embodiments, the limiter 4153 is a resilient member, such as a spring. An elastic member is employed, which can further stabilize each filter cartridge 415.

Referring to fig. 3a, fig. 3a is a schematic structural diagram of a mixing device high-speed mixer in a fully automatic production apparatus for lithium ion battery anode materials according to an embodiment of the present invention. As shown in fig. 3a, the high-speed mixer 5 includes a base 510, a motor 520 disposed on the left side above the base 510, and a mixing unit 530 disposed on the right side above the base 510, wherein the mixing unit 530 includes a mixing body, a stirring unit 5301 disposed inside the mixing body, a flow guiding unit 5303 disposed on the inner sidewall of the mixing body, and a discharge outlet 5305 disposed below the right side of the mixing body.

The base 510 is formed by welding castings, steel plates and angle steel, four lifting rings are arranged on two side surfaces, a driving belt pulley is arranged in the base 510, and four to six foundation bolt holes are arranged on the lower part of the base; the motor 520 is connected with a motor shaft at the bottom, the driving rotary disk is connected with the lower part of the motor shaft, the mixing unit 530 is internally provided with a transmission unit 5303, the lower part of the transmission unit 5303 is connected with a driven rotary disk, the driving rotary disk and the driven rotary disk are respectively sleeved with a linkage belt, the belts can be replaced by opening cover plates at two sides, the transmission unit 5303 comprises a rotary shaft, the rotary shaft is connected with the mixing unit 5301, the mixing unit 5301 comprises a stirring paddle, and the stirring paddle drives materials to mix through the rotation of the rotary shaft.

The mixing main body comprises a pot seat 511, a pot cover 512 and a pot body 513 which are arranged on the right side above the base 510, the mixing main body further comprises an air cylinder 514, the air cylinder 514 moves to drive the pot cover 512 to be jacked up, after the pot cover 512 is jacked up, the pot cover 512 can rotate 70 degrees clockwise along a vertical rotating shaft, so that the pot cover 512 is opened to carry out discharging work, when the stirring unit 5301 carries out stirring work, the air cylinder 514 drives an electromagnetic valve to move, the electromagnetic valve is opened, pulse back blowing is started, and the dust removing effect is achieved.

The pot 513 is made of stainless steel, has extremely hard and smooth inner surface, and has the characteristics of wear resistance, corrosion resistance, difficult object sticking and the like; the outer surface of the pot body 513 is provided with a heating jacket and a resistance heating plate, the temperature is transferred to the pot body through high-ignition-point heat conduction oil in the heating jacket, so that the pot body is heated uniformly, and the temperature of materials in the pot body can be controlled by adjusting the heating temperature. However, when the high-speed mixer is applied to mixing in the lithium battery industry, the heating function is not needed, in the embodiment of the invention, the outer surface of the pot body 513 is provided with a cooling cavity, the outer layer of the cooling cavity is also provided with an insulating layer, the cooling cavity is internally provided with a coolant, and the coolant is water, so that the mixed materials are cooled due to heat generated by friction, and the heat generated by friction comprises friction between the materials before the materials and friction between the materials and the machine body.

The pot cover 512 is cast by aluminum alloy, the inner surface is finely turned and polished, the pot cover 512 can rotate 70 degrees clockwise along a vertical rotating shaft after being jacked up by the air cylinder 514, the rotation is light and rapid, and the cutting force is not excessively large during the rotation so as to prevent damaging the wall of the pot; the pot cover 512 is covered with a charging hole and a ventilation hole, and a user can arrange the pot according to the self-requirement; the pot cover 512 can be manually turned up and positioned, and is convenient to use. In order to prevent personal accidents caused by the rotation of the stirring paddle when the pot cover is not covered, the switch is not turned on and the motor cannot be started when the pot cover is not covered tightly.

Referring to fig. 3b, fig. 3b is a schematic view of a baffle structure in the high-speed mixer shown in fig. 3 a. As shown in fig. 3b, the flow guiding unit 5303 includes a flow guiding plate disposed on the inner side wall of the pot 513, the flow guiding plate having an approximately streamline surface for guiding the material, when the material is mixed, the material is stirred to the edge of the wall of the pot by the stirring device, the flow guiding plate can utilize the streamline surface to influence the circulation movement of the material, so as to quickly guide the mixed material back to the stirring center for stirring, thereby reducing the generation of dead material waste, improving the mixing efficiency and improving the uniformity of the mixture; further, a thermocouple can be arranged below the guide plate to monitor the temperature of materials, so that automatic discharging is facilitated, and the effect of mixing adjustment is achieved.

The stirring device 5301 comprises a stirring paddle, wherein the stirring paddle is driven by the motor 520 through a triangular tape, and the stirring paddle rotates clockwise to enable materials to move along the wall of a pot on one hand and to turn up and down circularly at the same time, and the stirring paddle has better mixing effect due to the flow guiding effect of the flow guiding plate; because the materials move at a high speed, frictional heat between particles and between the materials and the stirring paddles is large, so that the temperature of the materials rises rapidly, and the heat generated by friction is taken away by the cooling cavity, so that the materials are cooled, and the working efficiency is improved; the stirring paddle is made of stainless steel, and is wear-resistant and corrosion-resistant through fine machining.

Referring to fig. 3c, fig. 3c is a schematic view of a discharge port in the high-speed mixer shown in fig. 3 a. As shown in fig. 3c, the discharge port 5305 is cast from aluminum alloy, the discharge port 5305 is provided with a cover plate, and a blowing port is arranged on the cover plate, and is a hose connector, which is used for blowing off the mixed material (using compressed air) adhered in the discharge port; the discharging hole 5305 is also provided with a first electromagnetic valve and a second electromagnetic valve, when the mixing work is finished, the electromagnetic valves are electrified, and the valves are opened to start discharging; when the material discharging operation is carried out, the first electromagnetic valve and the second electromagnetic valve are started, pulse back blowing is carried out while material discharging is carried out, materials are further mixed, the first electromagnetic valve and the second electromagnetic valve circularly work, the cycle period of the first electromagnetic valve is 5s, and the cycle period of the second electromagnetic valve is 1s; when the bin is at the material level, the valve is closed, and the discharging work is finished.

The discharging mode of the discharging port 5305 comprises a manual mode and a pneumatic mode, wherein the manual mode and the pneumatic mode are mainly used for equipment with the volume smaller than 50L, the temperature of the material in the pot is read according to an instrument during discharging, and the discharging port 5305 is used for opening and closing a discharging door in a manual mode; the latter is mainly used for equipment with the volume of more than 50L (including 50L), the discharging door is directly connected with the material door in a line by an air cylinder, the compaction is reliable, the sealing performance is good, the closing is flexible, an air compressor (not labeled in the figure) with the volume of 0.39-0.49 Mpa is used, and the discharging mode can be realized by two modes of automatic control of the material temperature in a pot and manual setting by a button.

The mixing device for the lithium ion battery anode material production provided by the embodiment of the invention comprises a high mixer, wherein the streamline structure guide plate in the high mixer can rapidly guide the mixed materials back to the stirring center to continuously stir and mix, so that the generation of dead materials and wastes is reduced, the mixing efficiency is improved, and the uniformity of the mixture is improved; meanwhile, when the mixing material is suitable for the lithium battery industry, a cooling cavity is arranged outside the pot body, so that the heat generated by friction of the mixed materials can be cooled, and the mixing efficiency is further improved; the high-speed mixer has the advantages of quick mixing, uniform mixture, convenient machine operation, easy cleaning, firmness, durability, compact structure and the like.

Referring to fig. 4a to 6d together, fig. 4a is a schematic structural diagram of a dual-head bowl loading machine in a fully automatic production apparatus for positive electrode materials of lithium ion batteries according to an embodiment of the present invention, fig. 4b is a top view of the dual-head bowl loading machine shown in fig. 4a, fig. 4c is a left view of the dual-head bowl loading machine shown in fig. 4a, and fig. 4d is a schematic structural diagram of an automatic bowl loading device in the dual-head bowl loading machine shown in fig. 4 a. As shown in fig. 4a to 6d, the sintering system further comprises a double-headed bowl loading machine 6, the double-headed bowl loading machine 6 comprises a bracket 61, two sets of conveying mechanisms 62 and a shell 63 which are arranged in parallel, a set of automatic bowl loading device 64 is arranged right above each set of conveying mechanisms 62, and the shell 63 accommodates part of the conveying mechanisms 62 and the automatic bowl loading device 64 inside to form a working space; wherein each set of automatic bowl loading device 64 is provided with a spiral feeding mechanism 641 and a weighing mechanism 642, a feeding port 6411 of the spiral feeding mechanism 641 extends into the shell 63 and is arranged downwards, the weighing mechanism 642 is provided with a weighing blanking channel 6421, an upper port of the weighing blanking channel 6421 is in sealing connection with the feeding port 6411, and a lower port of the weighing blanking channel 6421 is arranged downwards opposite to the transmission mechanism 62; wherein each set of automatic bowl loading device 64 is also provided with a three-dimensional space moving mechanism 643 positioned between the weighing blanking channel 6421 and the transmission mechanism 62, the three-dimensional space moving mechanism 643 comprises a Z-axis driving mechanism 6431 fixed on the bracket 71, the output end of the Z-axis driving mechanism 6431 is fixedly connected with a horizontally arranged frame 6432, the frame 6432 is provided with a Y-axis driving mechanism 6433 which outputs power along the Y-axis direction, the output end of the Y-axis driving mechanism 6433 is fixedly connected with a Y-substrate 6434, the Y-substrate 6434 is provided with a first hollowed-out part 6340 which enables the transmission mechanism 62 to be communicated with the weighing blanking channel 6421, wherein the Y axis direction is the same as the movement direction of the transmission mechanism 62, an X-axis driving mechanism 6435 is fixed on the Y substrate 6434, the output end of the X-axis driving mechanism 6435 is connected with the X substrate 6436, the X substrate 6436 has a second hollow portion 6360 capable of communicating with the first hollow portion 6340, a clamping mechanism 6437 for clamping a sagger passing under the three-dimensional space moving mechanism 643 is provided on the X substrate 6436, the clamping mechanism 6437 has a first clamping plate 6371 and a second clamping plate 6372 distributed on two sides of the transmission mechanism 62, and the first clamping plate 6371 and the second clamping plate 6372 pass through the positions of the first hollow portion 6340 and the second hollow portion 6360 and then extend to be close to the transmission mechanism 62 to clamp the sagger.

It should be understood that, in this embodiment, the Z-axis driving mechanism 6431, the Y-axis driving mechanism 6433 and the X-axis driving mechanism 6435 are all connected to the controller of the bowl loader, and when the bowl loader is in operation, the photoelectric switch provided inside detects the bowl and transmits signals to the controller, and the controller controls the movement of the Z-axis driving mechanism 6431, the Y-axis driving mechanism 6433 and the X-axis driving mechanism 6435 according to the position of the bowl so as to seal the bowl with the weighing blanking channel 6421. It should be noted that the controller in this embodiment is implemented by a technology known in the art.

Referring to fig. 4e, fig. 4e is a schematic structural diagram of a first hollow portion, a second hollow portion, and a frame of the dual-head bowl loading machine shown in fig. 4 a. As shown in fig. 4e, in the present embodiment, the first hollow portion 6340 and the second hollow portion 6360 are communicated, and the first clamping plate 6371 and the second clamping plate 6372 extend through the first hollow portion 6340, the second hollow portion 6360 and the frame 6432 to a position close to the conveying mechanism 62. That is, the first clamping plate 6371 and the second clamping plate 6372 can slide along the space formed by the first hollowed-out portion 6340, the second hollowed-out portion 6360, and the frame 6432. The frame 6432 is a square frame, and the first hollow portion 6340 and the second hollow portion 6360 are square hollow portions. Preferably, in the present embodiment, the second hollow portion 6360 is larger than the first hollow portion 6340, so that the movement adjustment of the X-axis driving mechanism 6435 in the X-axis direction can be facilitated.

Referring to fig. 4a again, the clamping mechanism 6437 includes a screw 6373 screwed to both the first clamping plate 6371 and the second clamping plate 6372, the screw 6373 being connected to a motor 6374; when the motor 6374 drives the screw 6373 to rotate, the first and second clamping plates 6371 and 6372 come close to or separate from each other. Specifically, the screw 6373 has a first thread screwed with the first clamping plate 6371 and a second thread screwed with the second clamping plate 6372, the first thread and the second thread being disposed in opposite directions. When the screw rod 6373 rotates, the first screw thread and the second screw thread rotate reversely, and the first clamping plate 6371 and the second clamping plate 6372 are driven to approach each other or separate from each other. To ensure stability of the first and second clamping plates 6371, 6372, the first and second clamping plates 6371, 6372 are sleeved with at least one guide rod.

Specifically, in the present embodiment, the X-axis driving mechanism 6435, the Y-axis driving mechanism 6433, and the Z-axis driving mechanism 6431 may be implemented using a screw motor mechanism or a cylinder drive. Preferably, in this embodiment, a lead screw motor mechanism is employed for driving. Each driving mechanism comprises a motor and a screw rod in driving connection with the motor, the screw rod is in threaded connection with the respective base plate, and the base plate is driven to slide through the rotation of the screw rod so as to realize precise control.

In this embodiment, the casing 63 has an exhaust pipe 65 communicating with the working space inside the casing 63. The air suction pipe 65 is used for being communicated with an external air suction system and sucking out floating particles in the shell 63, so that the cleaning of a working area in the shell 63 is ensured.

Specifically, the housing 63 includes a body 631 and a door 632, the body 631 and the door 632 being openably and closably connected by two locking mechanisms 633; the locking mechanism 633 comprises an L-shaped strut 6331 and an air strut 6332, one end of the L-shaped strut 6331 is fixedly connected with the door 632, the other end extends to the side surface of the body 631 and is hinged to the first end of the air strut 6332, the other end of the air strut 6332 is hinged to the body 631, and the control of the L-shaped strut 6331 is achieved through power output of the air strut 6332.

In use, the sagger is transported to the automatic bowl loading device 64 on the transport mechanism 62, the photoelectric switch detects that the sagger reaches a predetermined position, at this time, the first clamping plate 6371 and the second clamping plate 6372 clamp the sagger under the action of the clamping mechanism 6437, and then the controller controls the movement of the X-axis driving mechanism 6435, the Y-axis driving mechanism 6433 and the Z-axis driving mechanism 6431 to transport the sagger to the weighing blanking channel 6421. The technology adopts three-dimensional position control, and realizes fine adjustment of the positions of the sagger so as to enable the sagger to be better matched with the weighing blanking channel 6421 in a sealing way.

Referring to fig. 5a to 5d together, fig. 5a is a schematic structural diagram of a stacking machine in a fully automatic production apparatus for a positive electrode material of a lithium ion battery according to an embodiment of the present invention, fig. 5b is a top view of a positioning assembly in the stacking machine shown in fig. 5a, fig. 5c is a front view of the positioning assembly in the stacking machine shown in fig. 5a, and fig. 5d is a schematic positional diagram of an elastic bending member and a baffle plate in the stacking machine shown in fig. 5 a. As shown in fig. 5a to 5d, the bowl stacking machine 7 includes a support 71, a transmission mechanism 72 is provided on the support 71, a set of centering adjustment mechanisms 73 are respectively provided on the left and right sides of the transmission mechanism 72, each set of centering adjustment mechanisms 73 has a power piece 731 and a positioning plate 732 fixed on the output end of the power piece 731, the positioning plates 732 on the left and right sides are oppositely arranged, and a limiting mechanism 74 is provided on the front end of the transmission mechanism 72; the rear side of each positioning plate 732 is provided with a positioning component 733 with an adjustable length, each positioning component 733 is provided with an elastic bending part 7331 protruding inwards, and the elastic bending parts 7331 of the two positioning plates 732 are oppositely arranged to form a pushing structure for pushing the sagger towards the limiting mechanism 74.

In this embodiment, the centering adjustment mechanism 73 is used to center the sagger. When the sagger works, the sagger moves to a position between the two sets of centering adjusting mechanisms 73 under the action of the transmission mechanism 72, the baffle plate of the limiting mechanism 74 moves upwards and is touched by the photoelectric sensor, the transmission mechanism 72 stops working, and at the moment, the power pieces 731 on the left side and the right side output power to enable the respective positioning plates 732 to move towards the sagger until the sagger is clamped, so that centering positioning is realized. At the same time, the positioning plate 732 is moved in the direction of the sagger, and the positioning assembly 733 is driven to approach the middle. Because the elastic bending piece 7331 of the positioning component 733 protrudes inwards, in the process that the positioning plate 732 approaches the sagger, the elastic bending piece 7331 contacts the tail end of the sagger, in the process that the positioning plate 732 is further centered, the elastic bending piece 7331 generates elastic force for the sagger, the elastic force can push the sagger to move towards the direction of the baffle until the positioning plate 732 just centers and adjusts, the elastic bending piece 7331 tightly presses the sagger on the baffle, so that a gap between the baffle and the sagger can be avoided, and the follow-up lamination accuracy is ensured. It should be noted that the effective length of the elastic bending member 7331 is the length from the plane corner position D of the elastic bending member 7331 and the positioning plate 732 to the C plane of the baffle 741, as shown in fig. 5D. Thus, the effective length can be adjusted to accommodate centering of different sized saggers when adjusting the position of the elastic bend 7331.

In detail, referring to fig. 5c and 5d again, the positioning assembly 733 has at least one guide rod 7332 fixed on the tail end surface of the positioning plate 732, the at least one guide rod 7332 is sleeved with the elastic bending member 7331, and the elastic bending member 7331 is in threaded connection with a screw rod 7333; the screw 7333 is disposed parallel to the guide 7332, and one end of the screw is screwed to the positioning plate 732. When the screw 7333 is rotated, the elastic bending piece 7331 slides along with the at least one guide rod 7332, so that the position of the elastic bending piece 7331 can be adjusted to meet the use requirements of different saggers. That is, the present embodiment adopts the principle of the screw slider to realize the position adjustment of the elastic bending piece 7331.

In detail, the elastic bending member 7331 is connected to a connecting portion 7334, the connecting portion 7334 is connected to the screw 7333 by screw, and the connecting portion 7334 is sleeved with at least one guide rod 7332. In addition, in order to improve the stability of the elastic bending piece 7331 in adjusting the position and pushing the sagger, the present embodiment provides two guide rods 7332, and the two guide rods 7332 are separately provided at both sides of the lead screw 7333.

In order to realize the threaded connection of the screw 7333 and the positioning plate 732, a threaded member 7336 having a threaded hole is fixed to the rear end surface of the positioning plate 732, and the screw 7333 is threaded with the threaded member 7336. When the screw 7333 is rotated, rotational movement and movement in the axial direction are generated between the screw 7333 and the screw 7336.

Specifically, the cross section of the elastic bending member 7331 is arc-shaped. The arc-shaped part protrudes toward the direction of the transmission mechanism 72, and pushes the sagger when the positioning plate 732 performs centering treatment, so that the sagger is pushed to the baffle 741 of the limiting mechanism 74, and the position of the sagger is more accurate. It should be appreciated that the arcuate manner can facilitate relative sliding after contact with the sagger. In addition, in order to be able to reduce the influence of the surface of the elastic bending piece 7331 sagger, the side surface of the convex portion of each elastic bending piece 7331 has a soft layer 7338. The soft layer 7338 can play a role of buffering, and can be made of cotton material.

In order to realize control of the screw 7333, a knob 7335 is provided at the tail of the screw 7333 in this embodiment. The rotation of the screw 7333 is achieved by rotating the knob 7335 through time in use. The knob 7335 is preferably designed in a petal shape for easy rotation.

In order to ensure that the adjusted position of the elastic bending member 7331 is stable, the screw 7333 and the screw 7336 are prevented from loosening, and a spring 7337 in a compressed state is sleeved outside each guide rod 7332. By the spring 7337 generating an elastic force to the elastic bending piece 7331, it is possible to ensure that the screw 7333 does not easily rotate.

In a word, the technical scheme of the invention enables the sagger to be in closer contact with the baffle 741 of the limiting mechanism through the extrusion pushing of the adjustable elastic bending piece 7331, reduces the position error and facilitates subsequent lamination.

Referring to fig. 6a, fig. 6a is a schematic structural diagram of a roller furnace in a fully automatic production apparatus for a positive electrode material of a lithium ion battery according to an embodiment of the present invention. As shown in fig. 6a, the sintering device 810 includes a roller furnace, the roller furnace includes a furnace body 8101 and a driving roller table 8103 penetrating through the furnace body 8101, the furnace body 8101 is sequentially provided with a heating zone, a constant temperature zone, a cooling zone and a cooling zone, exhaust devices 8105 are arranged at the tops of the heating zone and the cooling zone, and the exhaust devices 8105 are exhaust fans for removing moisture. In the embodiment of the invention, the roller hearth furnace comprises a primary burning device and a secondary burning device, wherein the secondary burning device is similar to the primary burning device and is different in that: the cooling area of the two-firing device is also provided with a cooling device, and the cooling device adopts water cooling.

The furnace body comprises a box body built by a brick structure, a shell arranged on the inner layer and the outer layer of the box body and a furnace chamber formed in the box body, wherein the furnace top is in a vault form, the furnace chamber is built by light heat insulation refractory bricks and ceramic fiber cotton plates (carpets), the bottom of the box body is provided with a plurality of furnace feet (not labeled in the figure), and the furnace feet comprise sliding foot seats, so that the impact of the thermal expansion in the furnace body on the furnace body can be relieved, and the service life of the furnace body is prolonged; the outer shell is a metal shell. In the embodiment of the invention, the inner and outer shells are formed by assembling and welding steel plates, and an interlayer channel is arranged between the inner and outer shells and can be used for air cooling heat exchange; the box body built by the brick structure has heat insulation and preservation, and maintains the temperature in the hearth; the matched systems at the outer part of the furnace body are prevented from being damaged by high temperature; an expansion joint is reserved, so that the damage of excessive thermal expansion and cold contraction to the furnace body is prevented.

Further, in order to improve the heat preservation and the tightness of the furnace body, the furnace wall is sequentially formed by a sealing layer, a high temperature resistant layer and a heat preservation layer from inside to outside, wherein the sealing layer is formed by welding cast iron, the high temperature resistant layer is made of ceramic, the heat preservation layer is filled by asbestos wires, an electric heating system is arranged in the furnace wall, the electric heating system comprises an electric heating element, the electric heating element is a heating rod or a heating wire, the electric heating element is a silicon carbon heating rod and is distributed on the upper part and the lower part of a roller rod of a heating zone, 112 heating rods (224 heating rods in the whole kiln) are respectively arranged on the upper part and the lower part of the roller rod, wherein only the upper part (28 heating rods in total) of the front half box of the 1 st section and the 2 rd section and the 3 rd section are provided with ceramic protection sleeves, and the rest parts are not provided with the ceramic protection sleeves.

The cooling device can also comprise a cooler and a cooling tower, and further, a spraying device can be arranged in the cooler and communicated with a water outlet of the cooling tower; the cooling rotary cylinder body is arranged below the spraying equipment, the water pool is arranged below the cooling rotary cylinder body and is communicated with the water inlet of the cooling tower through the water pump, and therefore the recycling of cooling water is achieved.

Referring to fig. 6b, fig. 6b is a schematic structural diagram of a multi-layer roller furnace in a fully automatic production apparatus for a positive electrode material of a lithium ion battery according to an embodiment of the present invention. As shown in fig. 6b, the sintering device 820 comprises a multi-layer roller furnace, the multi-layer roller furnace comprises a furnace body and a furnace chamber, a first layer conveying roller way 8201, a second layer conveying roller way 8202 … … and an nth layer conveying roller way 820N which are arranged up and down at intervals are arranged in the furnace chamber, a first heating element is arranged above the first layer conveying roller way 8201, a second heating element … … is arranged between the first layer conveying roller way 8201 and the second layer conveying roller way 8202, an nth heating element is arranged between the nth layer conveying roller way and the nth layer conveying roller way, and an (n+1) th heating element is arranged below the nth layer conveying roller way 820N.

According to the invention, a multilayer roller way structure conveying sagger is adopted, and N+1 heating elements are arranged and positioned above the first layer conveying roller way, in the space between two layers of conveying rollers and below the N layer conveying roller way, so that the sagger on the multilayer conveying roller way can be heated effectively and uniformly at the same time, and under the same production process time requirement and the same production factory conditions, the multilayer sealed roller way furnace has more heat treatment material capability and greatly improves the productivity compared with a single-layer sealed roller way furnace with the same length; in addition, due to the design of the multilayer roller conveying structure, the sagger on the multilayer roller is positioned in the same large furnace chamber, and compared with the sealed roller furnace with the same multilayer roller conveying structure, the heat energy consumption is saved; meanwhile, compared with the process gas consumption, the multilayer roller way conveying structure is less than the single-layer roller way conveying structure, and the cost is reduced. The multi-layer sealing roller way has the advantages of meeting production requirements in a small occupied space, improving the energy utilization rate, greatly reducing the unit energy consumption of equipment and having lower process atmosphere consumption rate.

Referring to fig. 6c, fig. 6c is a schematic structural diagram of a double-layer roller furnace in a fully automatic production apparatus for a positive electrode material of a lithium ion battery according to an embodiment of the present invention. As shown in fig. 6c, the sintering device 830 is similar to the sintering device 820 described above, except that: the sintering device 830 comprises a double-layer roller way furnace, the double-layer roller way furnace comprises a furnace body and a furnace chamber, a first layer of conveying roller ways 8301 and a second layer of conveying roller ways 8303 which are arranged in an up-down interval mode are arranged in the furnace chamber, first heating elements are arranged above the first layer of conveying roller ways 8301, second heating elements are arranged between the first layer of conveying roller ways 8301 and the second layer of conveying roller ways 8303, and third heating elements are arranged below the second layer of conveying roller ways 8303.

According to the invention, the double-layer roller way structure conveying sagger is adopted, and three heating elements are arranged and positioned above the first layer conveying roller way 8301, in the space between two layers of conveying rollers and below the second layer conveying roller way 8303, so that the sagger on the two layers of conveying roller ways can be heated effectively and uniformly at the same time, and under the same production process time requirement and the same production factory conditions, compared with a single-layer sealing roller way furnace with the same length, the double-layer sealing roller way furnace has more heat treatment material capability, and the productivity is greatly improved; in addition, due to the design of the double-layer roller conveying structure, the sagger on the double-layer roller is positioned in the same large furnace chamber, and compared with a sealed roller furnace with the same two single-layer roller conveying structures, the double-layer roller conveying structure has the advantage that the heat energy consumption is saved; meanwhile, compared with a single-layer roller way conveying structure, the double-layer roller way conveying structure is less in consumption of process gas, and the cost is reduced. The double-layer sealing roller way has the advantages of meeting production requirements in a small occupied space, improving the energy utilization rate, greatly reducing the unit energy consumption of equipment and having lower process atmosphere consumption rate.

Referring to fig. 6d, fig. 6d is a schematic structural diagram of a rotary kiln in a fully automatic production apparatus for positive electrode materials of lithium ion batteries according to an embodiment of the invention. As shown in FIG. 6d, the present invention also provides another embodiment, the sintering device 840 is similar to the sintering device 810 described above, except that the sintering device 840 comprises a rotary kiln, the rotary kiln comprises a rotary kiln body 8401, a helical blade 8403 arranged inside the kiln body 8401, and a heating jacket 8405 arranged on the outer surface of the kiln body 8401, and the kiln body 8401 further comprises a partition plate arranged among a heating zone, a constant temperature zone, a cooling zone and a cooling zone in sequence. The material enters the rotary furnace through the feeding device, then the material gradually moves towards one end of the discharging device along with the rotation of the spiral blades 8403 in the rotary furnace body, and high-temperature sintering is carried out in the process. In an embodiment of the invention, the helical blade 8403 is a pusher screw, and the axis of the helical blade 8403 is parallel to the central axis of the furnace 8401.

The rotary furnace adopts a rotary dynamic sintering mode, the sintered materials are continuously turned over along with the continuous rotation of the helical blades around the central axis of the furnace body, the stirring effect is good, in the process, the materials are heated uniformly, the high-temperature treatment time can be relatively shortened, meanwhile, the furnace body part of the rotary furnace is good in sealing performance, and the heat loss caused by heat dissipation is small, so that the heat efficiency is high, the energy consumption can be obviously reduced, and the energy is saved; in addition, when the rotary furnace is adopted for sintering, the material does not need to be moved into a hearth through a feeding device, the calcined material is taken out through a discharging device, a high-temperature resistant container (such as a sagger or a crucible) is not needed, and the production cost can be reduced; the feeding and discharging are convenient, the production process is simplified, the material waste is reduced, and the dust pollution is correspondingly reduced. Therefore, the sintered material has better physical, chemical properties and uniformity.

Referring to fig. 7a and fig. 7b, fig. 7a is a schematic structural diagram of a bowl turning and guiding machine in a fully automatic production device for a positive electrode material of a lithium ion battery according to an embodiment of the present invention, and fig. 7b is a partial schematic internal diagram of the bowl turning and guiding machine shown in fig. 7 a. As shown in fig. 7a and 7b, the bowl turning and pouring machine 9 includes a support 91, a working box 92 is provided on the upper end surface of the support 91, a conveying mechanism 93 for conveying the bowls is provided on both sides of the working box 92, a bowl turning device 94 is provided in the working box 92, and the bowl turning device 94 is used for clamping and turning the bowls entered by the conveying mechanism 93 so as to make the powder in the bowls drop.

In detail, referring to fig. 7c and 7d together, fig. 7c is a schematic structural diagram of a sagger turning device in the sagger turning guide machine shown in fig. 7a, and fig. 7d is a schematic structural diagram of a pressing mechanism in the sagger turning guide machine shown in fig. 7 a. As shown in fig. 7c and 7d, the sagger turning device 94 comprises a carrying platform 941, a limiting mechanism 942 at the front end of the carrying platform 941, centering adjusting mechanisms 943 distributed on the left and right sides of the carrying platform 941, and a pressing mechanism 944 for pressing the sagger placed on the carrying platform 941; the carrying platform 941 and the conveying mechanism 93 are located on the same plane to receive the sagger conveyed by the conveying mechanism 93. The carrying platform 941 and the transmission mechanism 93 are both roll shaft structures. The limit mechanism 942 is located at the right part of the carrying platform 941, and when the photoelectric sensor switch in the carrying platform 941 detects that the sagger passes through the preset position, the limit mechanism 942 works, that is, the sagger at the carrying platform 941 is limited by moving upwards from the lower part of the carrying platform 941. Of course, the limiting mechanism 942 may be implemented by techniques known in the art, which will not be described herein. In an embodiment of the present invention, the centering adjustment mechanism 943 includes an adjustment plate 9431, and the adjustment plate 9431 is used to limit the sagger clamping at the load platform 941. The centering mechanism 943 may also be implemented by techniques well known in the art.

Specifically, the pressing mechanism 944 has two pressing plates 9441 that are separated on both sides of the carrying platform 941, and each pressing plate 9441 has an elastic pressing portion 9442 that is directed toward the carrying platform 941, wherein a lower end of each pressing plate 9441 extends below the carrying platform 941 and is connected to a power mechanism 9443, and the power mechanism 9443 drives the two pressing plates 9441 to move downward so that the elastic pressing portion 9442 presses the sagger. In this embodiment, the power mechanism 9443 drives two pressing plates 9441 to move up and down, when the pressing plates 9441 move down, the elastic pressing portion 9442 contacts with the sagger and generates elastic deformation, and the generated elastic force acts on the sagger, so that the force is gradually changed when the force contacts with the sagger, and a buffering effect can be generated.

Specifically, the elastic pressing portion 9442 includes a bending portion 9421 formed inward by a pressing plate 9441, wherein a terminal end of the bending portion 9421 is slidably connected to a connecting portion 9422, and a terminal end of the connecting portion 9422 is connected to the pressing block 9424; the outer periphery of the connecting portion 9422 is sleeved with a spring 9423 in a compressed state, and the spring 9423 generates pressure on the pressing block 9424. The connecting portion 9422 and the bending portion 9421 are slidably connected in a sleeved manner, and the connecting portion and the bending portion cannot fall off after being connected, and of course, the sliding sleeve connection of the connecting portion and the bending portion is realized by a known technology. The spring 9423 generates elastic force between the bending portion 9421 and the whole of the connecting portion 9422 and the pressing block 9424, that is, the spring 9423 causes the bending portion 9421 and the connecting portion 9422 to move in opposite directions. The greater the spring force generated when the spring 9423 is compressed, i.e., the greater the force at the squeeze block 9424, the greater the force acting on the sagger. Specifically, the upper end of the spring 9423 is fixedly connected to the bent portion 9421, and the lower end thereof abuts against the upper end surface of the pressing block 9424. In this way, the elastic force generated by the spring 9423 can act on the pressing block 9424.

In some embodiments, the lower end surface of the squeeze block 9424 has a soft layer 9425 in order to avoid friction scratching the surface when the squeeze block 9424 is in contact with the sagger. The soft layer 9425 may be a sponge layer or a silicone layer.

Further, the platen 9441 is located outside the rotating disk 9411 of the carrying platform 941. This can facilitate the installation of the pressure plate 9441. It should be appreciated that the pressure plate 9441 and the rotating disk 9411 are not in contact with each other nor are they fixedly connected.

In order to improve the stability of the pressure plate 9441 during sliding, the pressure plate 9441 is sleeved with a guide rod 9444, and the guide rod 9444 is fixedly connected with the bearing platform 941. Specifically, the guide rod 9444 is fixedly connected to the outer side surface of the rotating disk 9411 of the carrying platform 941, so that the pressing plate 9441 can slide relative to the rotating disk 9411 when sliding, and the stability of the pressing plate 941 is maintained due to the guiding action of the guide rod 9444.

Specifically, two pressing plates 9441 are fixedly connected to a transverse plate 9445 located below the carrying platform 941, and the transverse plate 9445 is in transmission connection with the power mechanism 9443. When the power mechanism 9443 outputs power, the transverse plate 9445 is pushed to move up and down, so that the two pressing plates 9441 are driven to move up and down in a reciprocating manner, and the sagger is tightly pressed. More preferably, in the present embodiment, the power mechanism 9443 includes a screw 9431 screwed to the cross plate 9445, the screw 9431 is drivingly connected to a motor 9432, and the screw 9431 is disposed along the moving direction of the pressing plate 9441, that is, along the up-down direction. The motor 9432 is fixed between two rotating disks 9411, which are fixedly connected to the two rotating disks 9411. When the motor 9432 rotates, the screw 9431 is driven to rotate, and as the screw 9431 is in threaded connection with the transverse plate 9445, the transverse plate 9445 moves up and down simultaneously when the screw 9431 rotates, and meanwhile the pressing plate 9441 is driven to move up and down, so that the sagger is pressed.

In short, the sagger is tightly pressed by the elastic force generated by the elastic pressing part 9442, so that a buffer effect is generated in the tightly pressing process, and the service life can be prolonged.

Referring to fig. 8a to 8c together, fig. 8a is a schematic structural diagram of an iron remover in a fully automatic production apparatus for positive electrode materials of lithium ion batteries according to an embodiment of the invention, fig. 8b is a side view of the iron remover shown in fig. 8a, and fig. 8c is a top view of a lifting mechanism in the iron remover shown in fig. 8 a. As shown in fig. 8a to 8c, the iron remover 10 includes an iron removing chamber 1010, the iron removing chamber 1010 includes a main body 1011, a feed port 1012 provided at a top end of the main body 1011, two movable plates 1013 provided opposite to each other inside the main body 1011, and at least one magnetic system 1014 connected to the two movable plates 1013, the iron removing chamber 1010 further includes a lifting mechanism 1015 connected to the movable plates 1013, the lifting mechanism 1015 including a first fixed shaft 151a and a second fixed shaft 151b mounted on a bottom plate of the main body 1011, a first movable shaft 152a slidably connected to the first fixed shaft 151a, a second movable shaft 152b slidably connected to the second fixed shaft 151b, and a sliding portion 1053 connected to the first movable shaft 152a and the second movable shaft 152b, respectively, the first movable shaft 152a and the second movable shaft 152b being mounted on the movable plates 1013, and the sliding portion 1053 being slidably connected to the bottom plate of the main body 1011.

A feed port 1012 arranged at the top end of the body 1011 in the iron removing chamber 1010 corresponds to the magnetic system 1014 inside the body 1011, and the battery material dry powder can enter the body 1011 through the feed port 1012 and fall on the magnetic system 1014. It is understood that the magnetic system 1014 may be a magnet or an electromagnet, etc. The number of the magnetic system 1014 may be one, or may be two or more. The magnetic system 1014 is used for adsorbing magnetic substances in the dry powder, mainly other metal impurities such as iron. The number of the movable plates 1013 is two and is relatively arranged, and in the iron removal chamber 1010, the movable plates 1013 are generally arranged in parallel with one side wall of the body 1011, so that the movable installation of the movable plates 1013 and the arrangement of the lifting mechanism 1015 are facilitated. Both ends of the magnetic system 1014 are connected to two movable plates 1013, respectively. The magnetic system 1014 and the movable plate 1013 may be connected by welding, screwing, or the like. The elevating mechanism 1015 is connected to the two movable plates 1013, respectively, so as to drive the two movable plates 1013 to reciprocate up and down. A supporting frame can be arranged below the iron removing chamber 1010.

The first fixing shaft 151a and the second fixing shaft 151b are fixed to the bottom plate of the main body 1011, respectively, so that the movable plate 1013 is kept stationary at a position in the horizontal direction inside the main body 1011. The movable shafts are respectively connected with the corresponding fixed shafts in a sliding way. The fixed shafts are respectively provided with a track, and the inner sides of the movable shafts are in sliding connection with the fixed shafts through the tracks. It will be appreciated that other means of sliding connection of the movable shaft to the stationary shaft may be selected. The movable shaft can slide on the fixed shaft under the action of external force, and the movable shaft is respectively arranged on the movable plate 1013, so that the movable shaft can drive the movable plate 1013 to move up and down. Meanwhile, the movable shaft is also connected with the sliding part 1053, and the sliding part 1053 slides on the bottom plate of the body 1011 to provide external force for the movable shaft, thereby driving the movable shaft to slide on the fixed shaft.

The iron remover for the lithium ion battery anode material production provided by the embodiment is characterized in that two movable plates 1013 and a lifting mechanism 1015 connected with the movable plates 1013 are arranged in an iron removing chamber 1010, the lifting mechanism 1015 can enable the movable plates 1013 to reciprocate up and down, and meanwhile, a magnetic system 1014 is arranged between the two movable plates 1013, so that the magnetic system 1014 shakes up and down along with the movable plates 1013; the lifting mechanism 1015 drives the movable shaft to reciprocate up and down on the fixed shaft through the sliding of the sliding part 1053 on the bottom plate of the body 1011, and the lifting mechanism 1015 is designed to be a symmetrical structure corresponding to the movable plate 1013, so that the movable shaft drives the movable plate 1013 to move more stably and reliably; therefore, the dry powder of the battery material is uniformly distributed on the magnetic system 1014 and can be fully contacted with the magnetic system 1014, magnetic substances in the dry powder are adsorbed by the magnetic system 1014, and meanwhile, the dry powder can not be accumulated when falling along with gravity, so that the efficiency of removing impurities such as metal iron by the iron remover is improved, and the metal impurities such as iron are completely removed.

In some embodiments, the sliding portion 1053 includes a gear 1054 rotatably connected to the bottom plate of the body 1011, a driving motor 1055 for driving the gear 1054 to rotate, a first sliding rail 1533a and a second sliding rail 1533b provided on the bottom plate of the body 1011, and a first sliding block and a second sliding block respectively moving on the first sliding rail 1533a and the second sliding rail 1533b, the first sliding block and the first movable shaft 152a, and the second sliding block and the second movable shaft 152b are respectively connected through a connecting shaft 1056; the first slider includes a first sliding plate 1534a and a zigzag first sliding bar 1534c connected to the first sliding plate 1534a, the second slider includes a second sliding plate 1534b and a zigzag second sliding bar 1534d connected to the second sliding plate 1534b, and the first sliding bar 1534c and the second sliding bar 1534d are respectively engaged with the gear 1054 to drive the first slider and the second slider to move.

The sliding portion 1053 is also symmetrical with the movable plate 1013. The slider can move on the slide rail of body 1011 bottom plate, and the slider passes through connecting axle 1056 with the loose axle and is connected, and the gliding in-process of slider has accomplished the angle modulation of connecting axle 1056 to drive the loose axle and slide on the fixed axle. The movement of the slider is effected by the meshing motion of the gears 1054. The slider includes the sliding plate and sets up the sliding strip in sliding plate one end, has the sawtooth structure on the sliding strip, is connected with the gear 1054 meshing to drive the sliding strip through the rotation of gear 1054 and carry out translation on the horizontal direction, drive the slider and remove on the bottom plate. By the engagement of the gear 1054 and the slide bar, the first slider and the second slider are simultaneously moved in opposite directions, thereby achieving the synchronous lifting of the first movable shaft 152a and the second movable shaft 152 b. Gear 1054 is driven by a drive motor 1055, and drive motor 1055 is mounted above gear 1054. Further, a fixing piece is arranged on the bottom plate of the body 1011, the upper side of the fixing piece is clamped with the gear 1054 through a through hole on the gear 1054, and the through hole is reserved in the middle of the gear 1054. The gear 1054 is detachably connected with a fixing member, and the arrangement of the fixing member prevents the gear 1054 from moving around above the bottom plate.

Further, the first slider and the second slider are respectively L-shaped, the first sliding plate 1534a is disposed perpendicular to the first sliding bar 1534c, and the second sliding plate 1534b is disposed perpendicular to the second sliding bar 1534 d. Further, the first sliding plate 1534a and the second sliding plate 1534b are disposed opposite to each other on both sides of the gear 1054, and the first sliding bar 1534c and the second sliding bar 1534d are disposed symmetrically with respect to the gear 1054. The first sliding plate 1534a and the second sliding plate 1534b, and the first sliding bar 1534c and the second sliding bar 1534d are symmetrically disposed on the peripheral side of the gear 1054, so that on one hand, the sliding bar is convenient to cooperate with the gear 1054, and on the other hand, the sliding plate can move in a direction parallel to the sliding bar.

Further, the sliding portion 1053 further includes a fixing plate 1057 disposed on the inner side of the first movable shaft 152a, the inner side of the second movable shaft 152b, the top end of the first sliding plate 1534a and the top end of the second sliding plate 1534b, and both ends of the connecting shaft 1056 are connected to the fixing plate 1057 through the rotation shaft 1058. The upper and lower ends of the connecting shaft 1056 are respectively formed into a rotating mechanism with the movable shaft and the sliding block through the rotating shaft 1058 and the fixed plate 1057, and meanwhile, the length of the connecting shaft 1056 is a fixed value, so that the movable shaft can be pushed upwards or pulled downwards in the rotating process of the connecting shaft 1056, and the height adjustment of the movable plate 1013 is completed.

In some embodiments, the movable plate 1013 has a chute thereon, and the iron removal chamber 1010 includes a stopper 1016 that mates with the chute, the stopper 1016 being mounted on an inner wall of the body 1011. Both ends of the movable plate 1013 are provided with sliding grooves, and a limiting block 1016 is arranged on the inner wall of the body 1011 and matched with the sliding grooves, so as to limit the movable plate 1013 when the movable plate 1013 moves up and down. The purpose of the up-and-down reciprocation of the movable plate 1013 is to shake the magnetic system 1014 installed between the two movable plates 1013, without the movable plate 1013 moving too much distance, the size of the chute is set according to the actual requirements. Two limiting blocks 1016 are arranged on each sliding groove, and the diameter of each limiting block 1016 is smaller than that of each sliding groove, so that the limiting block 1016 can penetrate through each sliding groove. Further, the number of the sliding grooves is two, the two sliding grooves are symmetrically arranged on the movable plate 1013, and the extending direction of the sliding grooves is the same as the moving direction of the movable plate 1013. The sliding grooves symmetrically arranged on the movable plate 1013 are used for ensuring that both sides of the movable plate 1013 can operate in a synchronous pace.

In some embodiments, the magnetic system 1014 is disposed in a step between the two moving plates 1013. The magnetic system 1014 is arranged between the two movable plates 1013 in a stepwise manner, and the magnetic system 1014 is arranged from the feed port 1012 at the top end of the body 1011 of the iron removal chamber 1010, extends in a stepwise manner to the side wall of the body 1011, and then is folded back in a stepwise manner from the side wall direction of the body 1011 to the side wall position opposite to the side wall, so that the magnetic system 1014 is arranged in a reciprocating manner until the magnetic system 1014 extends to the discharge port 1017 on the body 1011. The magnetic system 1014, which is stepped and is reciprocally provided between the side walls of the body 1011, can make the dry powder in sufficient contact with the same, and continuously adsorb the dry powder a plurality of times, thereby further improving the efficiency of removing magnetic impurities such as iron in the dry powder of the battery material. Further, the iron removal chamber 1010 further includes a discharge port 1017 disposed on a first side wall of the body 1011, the first side wall being perpendicular to the movable plate 1013. The outlet 1017 cooperates with the magnetic system 1014 to deliver the dry powder transferred from the magnetic system 1014 out of the de-ironing chamber 1010. The tap 1017 is located below the first sidewall.

In some embodiments, the iron remover further comprises a feed port 1020 and a feed control valve 1030, the feed control valve 1030 being disposed below the feed port 1020 and in communication with the feed port 1020; the lower end of the feed control valve 1030 communicates with the feed port 1012. The feeding control valve 1030 is a rotary valve, and can uniformly disperse the dry powder fed from the feed port 1020 and input the dry powder into the iron removal chamber 1010 through the feed port 1012, and the dry powder falls onto the magnetic system 1014 at the feed port 1012 of the iron removal chamber 1010.

When the iron remover provided by the embodiment is used, dry powder is firstly fed into the feeding control valve 1030 through the feeding port 1020, the feeding control valve 1030 uniformly inputs the dry powder into the iron removing chamber 1010, the dry powder falls down on the stepped magnetic system 1014, the driving motor 1055 drives the gear 1054 to rotate, the sliding bar is meshed with the gear 1054 to move, the sliding block slides on the bottom plate of the body 1011, the connecting shaft 1056 drives the movable shaft to reciprocate up and down, the movable plate 1013 is driven to reciprocate up and down, the magnetic system 1014 is enabled to shake up and down along with the movable plate 1013, the dry powder can not be accumulated along with the falling of gravity, magnetic substances in the dry powder can be adsorbed by the magnetic system 1014, the magnetic impurities in the dry powder can be more thoroughly adsorbed by the multi-stage magnetic system 1014, and the processed dry powder of battery materials flows out of the discharge port 1017.

Further, in some embodiments, the sintering system further comprises an inlet section function machine and a first displacement chamber, the inlet section function machine further comprising a shaker and an imprinter. Wherein, shake the even machine, also known as the refining machine, fill the raw materials of sagger, level the device of raw materials surface through the vibrator. Specifically, the powder in the sagger after being filled has a virtual and an unreasonable tip, so that the powder is uniformly vibrated and leveled in a vibration mode to eliminate the powder tip. The process is equipped with a vibration homogenizing device, and an electromagnetic vibrator is matched with an air spring to vibrate the powder uniformly.

The embossing machine, also called a dicer, comprises an embossing pressing bar, an embossing cutter, an embossing pressing bar lifting cylinder and an embossing cutter lifting cylinder, wherein the embossing pressing bar lifting cylinder and the embossing cutter lifting cylinder are respectively connected with the embossing pressing bar and the embossing cutter. And a device for stamping the materials in the sagger by using a stamping knife made of resin after the material is homogenized. 1. The powder has high cohesiveness, and in order to prevent large-area agglomeration during sintering, after the powder is uniformly vibrated, a cross-shaped dividing fork can be adopted to divide the powder in the sagger into a plurality of equal parts in advance so as to reduce agglomeration during powder sintering. In the embodiment of the invention, the automatic stamping device performs stamping treatment on the lithium battery material in the sagger, the average stamping times are 1-4 times per minute, and 4-64 blocks of block materials are stamped.

Further, the embossing machine and the shaking machine may be provided as an integrated machine.

When a certain product is continuously produced on a roller hearth furnace, if the product needs to be carried out under the protection of gas, a structure is needed to realize the conversion of air and atmosphere environment, the first replacement chamber is really a structure for realizing atmosphere conversion, and then a plurality of replacement chambers are adopted to respectively set air inlet and exhaust, so that the resource of the replacement chamber is not fully utilized, and the production cost is increased.

Further, in some embodiments, the sintering apparatus further comprises a second substitution chamber and an outlet section function machine, the second substitution chamber being similar to the first substitution chamber described above, and being an atmosphere substitution chamber, the difference being that: the first replacement chamber is arranged at the inlet of the roller hearth furnace, and the second replacement chamber is arranged at the outlet of the roller hearth furnace.

The outlet section functional machine further comprises a pre-crusher, a lifter and a cleaning machine, the outlet section functional machine automatically discharges materials in the sagger in a pouring mode, and the empty sagger is moved towards the direction of the sagger loading filling machine, so that a circulation is completed, and the circulation is repeated. Specifically, the pre-crusher is used for crushing the sintered finished product by using blades. The powder is sintered and then caked in the sagger to different degrees, in order to facilitate the separation of the powder and the sagger, the caked powder in the sagger is smashed before discharging, and the powder is crushed by inserting a knife and a fork of the pre-crusher into the sagger. Further, the powder sintering device also comprises a secondary crushing device, specifically, powder can be agglomerated in the sagger to different degrees after being sintered, the powder has different properties and different agglomeration sizes, the pre-crushing device can not completely crush the agglomeration, the secondary crushing device is needed to be configured for products with higher powder granularity requirements, and if the powder granularity requirements are not high, the receiving hopper is directly installed under the bowl-turning material pouring machine.

The lifter comprises a lifter and a descending machine, and the lifting conveyor belt is lowered or lifted to the original height, so that follow-up work is facilitated. Generally, the lifter is used in cooperation with the bowl turning and pouring machine, and is used for lifting the fired sagger from one end conveying line body to a discharging platform, discharging and recycling materials in a turning mode, and then lowering the empty sagger to the other end ground conveying line body.

The cleaner (not shown) cleans the powder remaining in the sagger into the dust collector by means of dust suction through a rotary brush connected to the dust collector. Specifically, after unloading, a small amount of powder is arranged in the sagger, and in order to facilitate the optical inspection of the sagger cracks in the subsequent process, the powder in the sagger needs to be cleaned and sucked away by a dust collector. The cleaning device equipped in the process is a cleaning machine, the cleaning machine is provided with a rotary brush, the rotary brush is connected with the dust collector, and the dust remained in the sagger is cleaned into the dust collector by utilizing a dust collection mode.

The full-automatic production equipment and the full-automatic production method for the lithium ion battery anode material provided by the embodiment of the invention have the advantages of high automation degree, low production cost and high product quality and production efficiency.

The present invention is not limited to the preferred embodiments, but is capable of modification in all respects, including the following description, and other embodiments, and all changes and modifications will be apparent to those skilled in the art from the foregoing description.

Claims

1. A full-automatic production equipment of lithium ion battery positive electrode material, its characterized in that: the full-automatic production equipment comprises a sintering system, wherein the sintering system comprises a roller hearth furnace or a rotary furnace and is used for periodically sintering materials in a sagger;

The sintering system also comprises a mixing device, wherein the mixing device comprises a high-speed mixer; the mixing device further comprises a mixing pretreatment device, wherein the mixing pretreatment device comprises a filtering device and a dust removal device, the filtering device comprises a vibrating screen, and the dust removal device comprises a dust remover;

the vibrating screen comprises a screen body, a machine seat and an external ultrasonic generator, wherein the screen body comprises a screen frame and a screen mesh arranged in the screen frame, a perspective window is arranged on the side wall of the screen frame, an ultrasonic transducer is fixed at the bottom of the screen mesh, and the ultrasonic transducer is connected with the external ultrasonic generator through a high-frequency wire;

The dust remover includes: the box body comprises a filter chamber, and an air inlet and an air outlet are also formed in the box body; the fan is arranged at the air outlet of the box body; the ash bucket is arranged at the bottom of the filtering chamber; the rotating plate is arranged in the filtering chamber, the central shaft of the box body is perpendicular to the plane where the rotating plate is positioned, and the rotating plate is provided with a plurality of mounting holes; a plurality of filter cartridges, each of which is mounted on a corresponding mounting hole; one end of the jetting pipe penetrates through each mounting hole and is communicated with the corresponding filter cylinder; the electromagnetic pulse valve comprises a switch inlet and a switch outlet, and the switch outlet of the electromagnetic pulse valve is arranged at the other end of the blowing pipe; the air storage tank is arranged at the switch inlet of the electromagnetic pulse valve; the driving mechanism is connected with the rotating plate and used for rotating the rotating plate; the controller is respectively connected with the electromagnetic pulse valve and the driving mechanism;

the high-speed mixer comprises a mixing unit, wherein the mixing unit comprises a mixing main body, a stirring unit arranged in the mixing main body, a flow guiding unit arranged on the inner side wall of the mixing main body and a discharge hole arranged below the right side of the mixing main body, and the flow guiding unit comprises a flow guiding plate which is in a streamline structure;

the sintering system further comprises a sintering device, the sintering device comprises a furnace body and a transmission roller way penetrating through the furnace body, the furnace body comprises a heating zone, a constant temperature zone, a cooling zone and a cooling zone, an exhaust device is further connected to the furnace body, and the exhaust device comprises exhaust fans positioned at the tops of the heating zone and the cooling zone;

The sintering system further comprises a stacking and separating bowl machine, wherein the stacking and separating bowl machine comprises a support, a transmission mechanism is arranged on the support, a set of centering adjusting mechanisms are respectively arranged at the left side and the right side of the transmission mechanism, each set of centering adjusting mechanism is provided with a power piece and a positioning plate fixed at the output end of the power piece, the positioning plates at the left side and the right side are oppositely arranged, and a limiting mechanism is arranged at the front end of the transmission mechanism; wherein,

The tail side of each positioning plate is provided with a positioning assembly with adjustable length, each positioning assembly is provided with an elastic bending piece protruding inwards, and the elastic bending pieces of the two positioning plates are oppositely arranged to form a squeezing structure for pushing the brake bowl to the limiting mechanism;

The sintering system further comprises a bowl turning and pouring machine, the sintering system comprises a support, a working box is arranged on the upper end face of the support, a transmission mechanism for transmitting a brake bowl is arranged on two sides of the working box, a brake bowl turning device is arranged in the working box, and the brake bowl turning device comprises a bearing platform, a limiting mechanism positioned at the front end of the bearing platform, centering adjusting mechanisms distributed on the left side and the right side of the bearing platform and a compressing mechanism for compressing the brake bowl placed at the bearing platform; the pressing mechanism is provided with two pressing plates which are separated from two sides of the bearing platform, each pressing plate is provided with an elastic extrusion part which points to the bearing platform, the lower end of each pressing plate extends to the lower part of the bearing platform and is connected to a power mechanism, and the power mechanism drives the two pressing plates to move downwards so that the elastic extrusion parts press the brake bowl;

The sintering system further comprises a crushing device, the crushing device comprises a pair of roller machines, the pair of roller machines comprises a first pair of roller machines, a second pair of roller machines … … and an N pair of roller machines which are connected with each other, the pair of roller machines further comprises a feeding groove, a middle groove and a discharging hole which are arranged on a frame from top to bottom and are communicated with each other, the pair of roller machines comprises a roller device and an adjusting device, the roller device comprises a first roller and a second roller which are oppositely arranged and rotate towards the inner side, and the adjusting device comprises a gap adjusting nut, a first locking nut and a second locking nut which are oppositely arranged;

The sintering system further comprises an iron remover, the iron remover comprises an iron removing chamber, the iron removing chamber comprises a body, a feeding hole arranged at the top end of the body, two movable plates which are arranged in the body and are opposite to each other, and at least one magnetic system which is connected with the two movable plates, the iron removing chamber further comprises a lifting mechanism which is connected with the movable plates, the lifting mechanism comprises a first fixed shaft and a second fixed shaft which are arranged on a bottom plate of the body, a first movable shaft which is in sliding connection with the first fixed shaft, a second movable shaft which is in sliding connection with the second fixed shaft, and a sliding part which is connected with the first movable shaft and the second movable shaft, wherein the first movable shaft and the second movable shaft are respectively arranged on the movable plates, and the sliding part is in sliding connection with the bottom plate of the body.