CN216630864U - Rotary reaction device and graphite type positive/negative electrode material continuous reaction treatment equipment - Google Patents
Rotary reaction device and graphite type positive/negative electrode material continuous reaction treatment equipment Download PDFInfo
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- CN216630864U CN216630864U CN202120839795.0U CN202120839795U CN216630864U CN 216630864 U CN216630864 U CN 216630864U CN 202120839795 U CN202120839795 U CN 202120839795U CN 216630864 U CN216630864 U CN 216630864U
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Abstract
The utility model relates to a rotary reaction device and graphite anode/cathode material continuous reaction treatment equipment, wherein the device comprises a rotary reactor, a coating/presintering section heating furnace is arranged outside a coating/presintering section of the rotary reactor, and a material lifting scraper mechanism which can selectively realize synchronous rotation or asynchronous rotation with the rotary reactor is arranged in a reaction cavity of the rotary reactor; the material lifting scraper mechanism is configured to selectively rotate synchronously with the rotary reactor when lifting materials and selectively rotate asynchronously with the rotary reactor when scraping materials. The equipment comprises a feeding mechanism, a discharging mechanism and the rotary reaction device, wherein the feeding mechanism and the discharging mechanism are in butt joint with the corresponding feeding end and the discharging end of the rotary reactor, and a carbonization/sintering section heating furnace is arranged outside the rotary reactor between the coating/pre-sintering section heating furnace and the discharging mechanism. The coating has the advantages of high coating quality, low cost, energy conservation and environmental protection, and can prevent wall adhesion and ring formation.
Description
Technical Field
The utility model mainly relates to the field of preparation of graphite cathode materials/phosphates and ternary anode materials of lithium ion batteries, in particular to a rotary reaction device and continuous reaction treatment equipment for the graphite cathode materials/the graphite anode materials.
Background
Coating needle coke or natural graphite with asphalt is a key material modification process for producing graphite cathode materials of lithium ion batteries. The main technical equipment adopted at present is a coating reaction kettle and a roller furnace.
The working principle of the coating reaction kettle is that the asphalt component in the raw material is mixed with the needle coke component through the resistance wire arranged outside the reaction kettle, the mixture is electrified and heated to form a coating film on the surface of the needle coke, and the materials are stirred through the stirring paddle arranged in the middle of the reactor to ensure that the asphalt is fully contacted with the needle coke and is heated and softened, so that the coating of the needle coke by the asphalt is completed. By adopting the mode, the furnace body is fixed, the asphalt is easy to bond on the inner wall of the furnace due to the viscosity of the asphalt, and particularly, when the furnace is operated for a long time, the wall bonding phenomenon can be continuously developed, so that materials can not normally flow, the machine is forced to be stopped for maintenance, and the equipment operation rate is not high.
The roller furnace is a rotatable rotary reactor body supported at two ends of the resistance furnace, and the materials in the roller furnace are mixed and uniformly heated by the self rolling of the roller furnace under the condition of electrifying and heating resistance wires of the resistance furnace, so that asphalt components in the raw materials are soft-melted and mixed with needle coke components to form a coating film on the surface of the needle coke. By adopting the mode, the materials in the furnace can not be well turned, and the uniform coating of the needle coke by the asphalt can not be ensured.
The process is similar to the coating carbonization process of the graphite cathode material of the lithium ion battery. At present, lithium iron phosphate, lithium nickel cobalt manganese oxide/lithium nickel cobalt aluminate (NCM/NCA) ternary lithium ion battery anode materials are also subjected to high-temperature static sintering in a pushed slab kiln or a roller kiln. The fully mixed raw materials are put into a corundum-mullite ceramic sagger and then enter a pushed slab kiln or a roller kiln for sintering, the temperature of a pre-sintering section is controlled below 600 ℃, and the water drainage, coke removal and coating work of the materials are completed; the temperature of the high-temperature sintering section is controlled within the range of 600-1000 ℃, and the solid-phase sintering reaction of the precursor of the anode material and the lithium salt is completed. In the sintering process, a large amount of heat is absorbed by the ceramic sagger, and a large amount of heat loss is caused by the fact that the materials and the sagger need to be cooled at the discharge hole. In addition, because static sintering is adopted, heat transfer is limited, longer heat treatment residence time is needed compared with dynamic sintering, and the overall energy consumption is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a rotary reaction device and graphite positive/negative electrode material continuous reaction treatment equipment which have the advantages of high coating/pre-sintering quality, low cost, energy conservation and environmental protection, and can prevent wall adhesion and ring formation.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a rotary reaction device comprises a rotary reactor, wherein a coating/pre-sintering section heating furnace is arranged outside a coating/pre-sintering section of the rotary reactor, and a material lifting scraper mechanism which can selectively realize synchronous rotation or asynchronous rotation with the rotary reactor is arranged in a reaction cavity of the rotary reactor; the material lifting scraper mechanism is configured to selectively rotate synchronously with the rotary reactor when lifting materials and to selectively rotate asynchronously with the rotary reactor when scraping materials.
As a further improvement of the above technical solution:
the material raising scraper mechanism comprises a material raising scraper driving part, a transmission shaft and a material raising scraper plate part, the transmission shaft extends into the rotary reactor and is connected with the material raising scraper driving part, and the material raising scraper plate part is installed on the transmission shaft.
The material lifting scraper piece comprises a first material lifting scraper unit arranged at the feeding end and a second material lifting scraper unit arranged at the rear part, and the first material lifting scraper unit and the second material lifting scraper unit are arranged on the transmission shaft at intervals along the material conveying direction; the first material raising scraper blade unit and the second material raising scraper blade unit are both composed of cage-shaped support frames, and the cage-shaped support frames are installed on the transmission shaft.
The part that first lifting scraper blade unit is close to the feed inlet sets up to a guide cylinder, a guide spiral has been installed to the inside cavity of guide cylinder, the hourglass material hole has evenly been seted up on the section of thick bamboo wall of guide cylinder.
The cage-shaped support frame comprises support ring frames arranged at the front end and the rear end and a material lifting scraper connected with the two support ring frames.
The transmission shaft is formed by connecting a plurality of short shafts through movable joint bearings, a first material lifting scraper unit is installed on one short shaft close to the feeding end, and a second material lifting scraper unit is installed on each subsequent short shaft.
The utility model provides a graphite class just/negative pole material continuous reaction treatment facility, includes feed mechanism, discharge mechanism and foretell rotary reaction device, feed mechanism and discharge mechanism butt joint are at rotary reactor's corresponding feed end and discharge end, and rotary reactor outside has arranged the carbonization/sintering section heating furnace in order to realize the carbonization/sintering through heating between cladding/presintering section heating furnace and discharge mechanism.
As a further improvement of the technical scheme:
the rotary reactor is obliquely arranged, the feeding end of the rotary reactor is high, and the discharging end of the rotary reactor is low.
The included angle between the axis of the rotary reactor and the horizontal line is a, and a is more than 0 degree and less than or equal to 10 degrees.
The coating/pre-sintering section heating furnace comprises a first furnace body and a first heating element which is arranged on the first furnace body and extends into the first furnace body, and the first furnace body is arranged outside the rotary reactor; the carbonization/sintering section heating furnace comprises a second furnace body and a second heating element which is arranged on the second furnace body and extends into the second furnace body, and the second furnace body is arranged outside the rotary reactor.
Compared with the prior art, the utility model has the advantages that:
the rotary reaction device is used for raising materials to ensure uniform coating/pre-sintering when the material raising scraper mechanism and the rotary reactor synchronously rotate, can effectively turn over the materials, and ensures the coating/anode material pre-sintering quality of the needle coke by the asphalt; when the material lifting scraper mechanism and the rotary reactor rotate asynchronously, the material lifting scraper mechanism is used for scraping materials to prevent the materials from sticking to the wall, the materials sticking to the rotary reactor can be cleaned, the ring formation caused by the materials sticking to the wall in the rotary reactor is effectively prevented, and the long-period operation of the process is ensured. According to the continuous reaction treatment equipment for the graphite anode/cathode materials, the continuity of the working procedures of coating/pre-sintering, carbonization/sintering and cooling of the graphite anode materials of the lithium ion battery is realized through the integrated rotary reactor, the consistency of products is ensured, and the quality of the products is obviously improved; the method has the advantages that the conventional equipment for coating the reaction kettle with the negative electrode material, coating the cooling kettle, cooling the cooling kettle, carbonizing the roller kiln or the pusher kiln and indirectly cooling water and the equipment for coating the box furnace with the positive electrode material, carbonizing the roller kiln or the pusher kiln and indirectly cooling water are replaced, so that the process flow and the labor intensity and the number of workers of the operators are greatly simplified, the energy consumption per ton of the product is greatly reduced, the equipment investment, the labor cost and the energy consumption cost are remarkably reduced, and the equipment can be enlarged; meanwhile, the computer automatic control is easy to realize, so that the production cost is greatly reduced.
Drawings
FIG. 1 is a schematic view of the structure of a rotary reaction apparatus of the present invention.
Fig. 2 is a schematic structural view of the continuous reaction treatment apparatus for graphite-based positive/negative electrode materials of the present invention.
Fig. 3 is an enlarged schematic view of a portion a of fig. 2.
The reference numerals in the figures denote:
1. rotating the reactor; 11. a reactor body; 12. a rotary drive member; 121. driving the supporting seat; 122. a drive motor; 123. a speed reducer; 124. a drive wheel; 125. a driving wheel; 2. a cladding/pre-sintering section heating furnace; 21. a first furnace body; 22. a first heating member; 3. a material lifting scraper mechanism; 31. a material raising scraper drive; 32. a drive shaft; 321. a minor axis; 322. A movable joint bearing; 33. lifting a scraper plate; 331. a first material raising scraper unit; 3311. a material guide cylinder; 33111. a material leaking hole; 3312. the material guiding is spiral; 332. a second lifting scraper unit; 333. a cage-shaped support frame; 3331. a support ring frame; 3332. A material raising scraper plate; 4. a feeding mechanism; 5. a discharging mechanism; 6. a carbonization/sintering section heating furnace; 61. a second furnace body; 62. A second heating member; 7. a support device; 71. a roller seat; 72. and supporting the wheels.
Detailed Description
The utility model will be described in further detail below with reference to the drawings and specific examples.
As shown in fig. 1, an embodiment of the rotary reactor apparatus of the present invention comprises a rotary reactor 1, a coating/pre-sintering section heating furnace 2 is disposed outside a coating/pre-sintering section of the rotary reactor 1, and a material lifting scraper mechanism 3 capable of selectively rotating synchronously or asynchronously with the rotary reactor 1 is disposed in a reaction chamber of the rotary reactor 1; the material lifting scraper mechanism 3 is configured to selectively rotate synchronously with the rotary reactor 1 during material lifting and to selectively rotate asynchronously with the rotary reactor 1 during material scraping. When the device operates, the rotary reactor 1 is started first, so that the rotary reactor 1 operates and rotates; then starting a coating/pre-sintering section heating furnace 2 to enable the corresponding working section to reach a corresponding preset temperature zone; then the needle coke and the asphalt which are mixed according to a certain proportion are sent into the rotary reactor 1 for reaction. Compared with the traditional structure, the device is used for raising materials to ensure uniform coating when the device synchronously rotates with the rotary reactor 1 through the material raising scraper mechanism 3, can effectively turn the materials and ensure the coating quality of the needle coke by the asphalt; when the material lifting scraper mechanism 3 and the rotary reactor 1 rotate asynchronously, the material lifting scraper mechanism is used for scraping materials to prevent the materials from sticking to the wall, the materials sticking to the rotary reactor 1 can be cleaned, the ring formation caused by the materials sticking to the wall in the rotary reactor 1 is effectively prevented, and the long-period operation of the process is ensured.
In this embodiment, the material raising scraper mechanism 3 includes the material raising scraper drive piece 31, transmission shaft 32 and the material raising scraper plate piece 33, and the transmission shaft 32 extends to in the rotary reactor 1 and is connected with the material raising scraper drive piece 31, and the material raising scraper plate piece 33 is installed on the transmission shaft 32. In the structure, the material lifting scraper driving piece 31 drives the transmission shaft 32 to rotate, the transmission shaft 32 drives the material lifting scraper plate piece 33 to rotate, when the material lifting scraper plate piece 33 and the rotary reactor 1 synchronously rotate, materials can be effectively turned, and the coating quality of the needle coke by the asphalt is ensured; when the lifting scraper plate 33 rotates the reactor 1 asynchronously, the material stuck on the rotating reactor 1 can be cleaned, so that the ring formation caused by the material sticking to the wall in the rotating reactor 1 is effectively prevented, and the long-period operation of the process is ensured.
In this embodiment, the material lifting scraper plate member 33 includes a first material lifting scraper unit 331 disposed at the feeding end and a second material lifting scraper unit 332 disposed at the rear, and the first material lifting scraper unit 331 and the second material lifting scraper unit 332 are disposed on the transmission shaft 32 at intervals along the material conveying direction; the first material lifting scraper unit 331 and the second material lifting scraper unit 332 are both composed of cage-shaped support frames 333, and the cage-shaped support frames 333 are installed on the transmission shaft 32. In this structure, through the first material lifting scraper blade unit 331 and the second material lifting scraper blade unit 332 of interval arrangement, can realize that the effective material of stirring in each position falls the material that glues on rotatory reactor 1 with the clearance, has further guaranteed the cladding quality and has effectively prevented in the rotatory reactor 1 because of the material glues the knot circle that the wall arouses.
In this embodiment, a material guiding barrel 3311 is disposed at a portion of the first material lifting scraper 331 near the material inlet, a material guiding screw 3312 is disposed in an inner cavity of the material guiding barrel 3311, and material leaking holes 33111 are uniformly disposed on a wall of the material guiding barrel 3311. In the structure, the continuous material guiding and conveying are formed by the action of the material guiding cylinder 3311 and the material guiding screw 3312, and the arrangement of the material leaking holes 33111 ensures that the material quickly passes through and the normal conveying function is ensured; on the other hand, the material from the material leaking hole 33111 temporarily supports the guide tube 3311, which is equivalent to indirectly supporting the transmission shaft 32, thereby improving stability.
In this embodiment, the cage-shaped support 333 includes support frames 3331 disposed at the front and rear ends and a material lifting scraper 3332 connected to the two support frames 3331. In the structure, the support ring frames 3331 rotate along with the transmission shaft 32, and materials can be effectively turned when the material lifting scraper 3332 between the two support ring frames 3331 and the rotary reactor 1 synchronously rotate, so that the coating quality of the needle coke by the asphalt is ensured; when the lifting scraper plate 33 rotates the reactor 1 asynchronously, the material stuck on the rotating reactor 1 can be cleaned, so that the ring formation caused by the material sticking to the wall in the rotating reactor 1 is effectively prevented, and the long-period operation of the process is ensured.
In this embodiment, the transmission shaft 32 is formed by connecting a plurality of short shafts 321 through a movable knuckle bearing 322, a first material lifting scraper unit 331 is installed on one short shaft 321 near the feeding end, and a second material lifting scraper unit 332 is installed on each subsequent short shaft 321. In the structure, the transmission shaft 32 is formed by connecting a plurality of short shafts 321 through movable knuckle bearings 322, so that the whole bending resistance of the transmission shaft 32 is enhanced; and a first material lifting scraper blade unit 331 is arranged on one short shaft 321 close to the feeding end, and a second material lifting scraper blade unit 332 is arranged on each subsequent short shaft 321, so that the material at the feeding end can be fully turned over through the first material lifting scraper blade unit 331, and the rapid conveying of the material is ensured through the second material lifting scraper blade unit 332 subsequently.
In the present embodiment, the rotary reactor 1 includes a reactor body 11 and a rotary drive 12, and the rotary drive 12 is disposed outside the reactor body 11 and drives the reactor body 11 to rotate. In this structure, the reactor body 11 is driven to rotate by the rotary driving member 12, and the structure is simple and reliable.
In this embodiment, the rotary driving member 12 includes a driving support seat 121, a driving motor 122, a speed reducer 123, a driving wheel 124 and a driving wheel 125, the driving support seat 121 is fixed on the ground, the driving wheel 124 is installed on the driving support seat 121, the driving wheel 125 is fixed on the rotary reactor 1 and connected to the driving wheel 124, the driving motor 122 drives the driving wheel 124 to rotate through the speed reducer 123, so as to drive the rotary reactor 1 to rotate through the driving wheel 125.
As shown in fig. 2 and fig. 3, an embodiment of the continuous reaction processing equipment for graphite-based positive/negative electrode materials of the present invention includes a feeding mechanism 4, a discharging mechanism 5 and the above-mentioned rotary reaction device, the feeding mechanism 4 and the discharging mechanism 5 are butted at the corresponding feeding end and discharging end of the rotary reactor 1, and a carbonization/sintering zone heating furnace 6 for realizing carbonization of reaction materials by heating is arranged outside the rotary reactor 1 between the coating/pre-sintering zone heating furnace 2 and the discharging mechanism 5. When the coating carbonization equipment runs, the rotary reactor 1 is started firstly, so that the rotary reactor 1 runs and rotates; then starting the coating/pre-sintering section heating furnace 2 and the carbonization/sintering section heating furnace 6 to enable the body of the corresponding section to reach the corresponding preset temperature zone; then starting the feeding mechanism 4 to enable the needle coke and the asphalt mixed according to a certain proportion to enter the rotary reactor 1 through the feeding mechanism 4; and finally, starting the discharging mechanism 5 to output the material which is coated and carbonized from the discharging mechanism 5. Compared with the traditional structure, the equipment realizes the continuity of the coating and carbonization processes of the graphite cathode material of the lithium ion battery through the integrated rotary reactor 1, ensures the consistency of the product and obviously improves the product quality; the equipment for coating the reaction kettle, cooling the cooling kettle, carbonizing the roller kiln or the pusher kiln and indirectly cooling water at present is replaced, the process flow and the labor intensity and the number of workers of the operators are greatly simplified, the energy consumption per ton of the product is greatly reduced, the equipment investment, the labor cost and the energy consumption cost are obviously reduced, and the large-scale equipment can be realized; meanwhile, the computer automatic control is easy to realize, so that the production cost is greatly reduced.
In the embodiment, the rotary reactor 1 is obliquely arranged, the feeding end of the rotary reactor 1 is at a high position, and the discharging end of the rotary reactor 1 is at a low position; the included angle between the axis of the rotary reactor 1 and the horizontal line is a, and a is more than 0 degree and less than or equal to 10 degrees. The angle a is set to 7 ° in this embodiment. Set up like this for the material is in the rotatory effort of self gravity and rotatory reactor 1 lasts to the discharge end transport, can guarantee even cladding, abundant carbomorphism and the cooling effect of material, can guarantee discharging efficiency again.
In this embodiment, the coating/pre-sintering section heating furnace 2 and the carbonization/sintering section heating furnace 6 are both arranged coaxially with the rotary reactor 1. By the arrangement, the consistent distance between the coating/pre-sintering section heating furnace 2 and the carbonization/sintering section heating furnace 6 and the circumferential direction of the rotary reactor 1 is ensured, namely the hot and cold uniformity of the corresponding temperature area and the corresponding cold area of the rotary reactor 1 is ensured.
In this embodiment, the coating/pre-sintering zone heating furnace 2 and the carbonization/sintering zone heating furnace 6 are arranged at intervals along the rotary reactor 1. The arrangement is convenient for the temperature arrangement and regulation of each temperature area and each cold area, and the mutual influence is reduced.
In this embodiment, the support devices 7 for supporting the corresponding positions of the rotary reactor 1 are installed outside the rotary reactor 1 at intervals. Because the rotary reactor 1 is a continuous integrated structure, the length of the rotary reactor is longer, and the supporting devices 7 are arranged at intervals, so that the rotary reactor 1 is conveniently supported, and the stability of the equipment is improved.
In this embodiment, the supporting device 7 includes a roller seat 71 and a supporting wheel 72, the supporting wheel 72 is fixed on the rotating reactor 1, the roller seat 71 is fixed on the ground and contacts with the supporting wheel 72, and the normal rotating function of the rotating reactor 1 can be ensured while the rotating reactor 1 is supported.
In this embodiment, the coating/pre-sintering section heating furnace 2 includes a first furnace body 21 and a first heating member 22 installed on the first furnace body 21 and extending to the inside thereof, the first furnace body 21 being disposed outside the rotary reactor 1; the carbonization/sintering section heating furnace 6 includes a second furnace body 61 and a second heating member 62 installed on the second furnace body 61 and extending to the inside thereof, the second furnace body 61 being disposed outside the rotary reactor 1. In the structure, the temperature of the heating furnace 2 at the coating/pre-sintering section is designed to be 0-650 ℃, an electric heating element (a first heating element 22), fuel oil, gas generated by burning a producer and natural gas can be used for heating, a burner for burning the fuel can adopt a radiation type burner for ensuring the uniformity of a temperature field, and the task of the first section is mainly to complete the coating and partial carbonization of the carbon raw material by the asphalt; the temperature of the heating furnace 6 at the carbonization/sintering section is designed to be 450-1100 ℃, and the heating mode can use an electric heating element (a second heating element 62), fuel oil combustion, producer gas combustion and natural gas combustion. In order to reduce energy consumption, a regenerative burner can be adopted as a burner for burning fuel. The second stage of the process mainly completes the carbonization of the coated asphalt.
In other embodiments, the device can also be used for continuous high-temperature sintering of lithium iron phosphate cathode materials of lithium ion batteries. The device also comprises a feeding mechanism 4, a discharging mechanism 5 and the rotary reaction device, wherein the feeding mechanism 4 and the discharging mechanism 5 are butted at the corresponding feeding end and the discharging end of the rotary reactor 1, and a carbonization/sintering section heating furnace 6 for realizing the sintering of reaction materials through heating is arranged between the pre-sintering heating furnace 2 and the discharging mechanism 5 outside the rotary reactor 1. When the high-temperature sintering equipment runs, the rotary reactor 1 is started firstly, so that the rotary reactor 1 runs and rotates; then starting the pre-sintering section heating furnace 2 and the sintering section heating furnace 6 to enable the body of the corresponding section to reach the corresponding preset temperature zone; starting the feeding mechanism 4 again to enable the precursor and the lithium salt mixed according to a certain proportion to enter the rotary reactor 1 through the feeding mechanism 4; and finally, starting the discharging mechanism 5 to output the material subjected to high-temperature sintering from the discharging mechanism 5. Compared with the traditional structure, the device realizes the continuity of the procedures of pre-sintering, high-temperature sintering and cooling of the lithium iron phosphate anode material of the lithium ion battery through the integrated rotary reactor 1, ensures the consistency of products and obviously improves the product quality; the method has the advantages that the existing box-type furnace and roller kiln or pushed slab kiln sintering equipment is replaced, the process flow and the labor intensity and the number of workers for operating the workers are greatly simplified, the energy consumption per ton of products is greatly reduced, the equipment investment, the labor cost and the energy consumption cost are obviously reduced, and the large-scale equipment can be realized; meanwhile, the computer automatic control is easy to realize, so that the production cost is greatly reduced.
In other embodiments, the device can also be used for continuous high-temperature sintering of the lithium nickel cobalt manganese oxide ternary cathode material of the lithium ion battery. The device also comprises a feeding mechanism 4, a discharging mechanism 5 and the rotary reaction device, wherein the feeding mechanism 4 and the discharging mechanism 5 are butted at the corresponding feeding end and the discharging end of the rotary reactor 1, and a sintering section heating furnace 6 for realizing the sintering of reaction materials through heating is arranged between the pre-sintering section heating furnace 2 and the discharging mechanism 5 outside the rotary reactor 1. When the high-temperature sintering equipment runs, the rotary reactor 1 is started firstly, so that the rotary reactor 1 runs and rotates; then starting the pre-sintering section heating furnace 2 and the sintering section heating furnace 6 to enable the body of the corresponding section to reach the corresponding preset temperature zone; then starting the feeding mechanism 4 to enable the ternary precursor and the lithium salt which are mixed according to a certain proportion to enter the rotary reactor 1 through the feeding mechanism 4; and finally, starting the discharging mechanism 5 to output the material subjected to high-temperature sintering from the discharging mechanism 5. Compared with the traditional structure, the device realizes the continuity of the processes of pre-sintering, high-temperature sintering and cooling of the lithium ion battery nickel cobalt lithium manganate anode material through the integrated rotary reactor 1, ensures the consistency of products and obviously improves the product quality; the sintering equipment of the prior roller kiln or pushed slab kiln is replaced, the process flow and the labor intensity and the number of workers for operating the workers are greatly simplified, the energy consumption per ton of products is also greatly reduced, the equipment investment, the labor cost and the energy consumption cost are obviously reduced, and the large-scale equipment can be realized; meanwhile, the computer automatic control is easy to realize, so that the production cost is greatly reduced.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention, unless the technical essence of the present invention departs from the content of the technical solution of the present invention.
Claims (10)
1. A rotary reaction apparatus, characterized in that: the device comprises a rotary reactor (1), a coating/pre-sintering section heating furnace (2) is arranged outside a coating/pre-sintering section of the rotary reactor (1), and a material lifting scraper mechanism (3) which can selectively realize synchronous rotation or asynchronous rotation with the rotary reactor (1) is arranged in a reaction cavity of the rotary reactor (1); the material lifting scraper mechanism (3) is configured to selectively rotate synchronously with the rotary reactor (1) when lifting materials and to selectively rotate asynchronously with the rotary reactor (1) when scraping materials.
2. The rotary reactor device according to claim 1, wherein: raise material scraper mechanism (3) including raising material scraper blade driving piece (31), transmission shaft (32) and raise material and scrape plate spare (33), transmission shaft (32) extend in rotatory reactor (1) and are connected with raising material scraper blade driving piece (31), raise material and scrape plate spare (33) and install on transmission shaft (32).
3. The rotary reactor device according to claim 2, wherein: the material lifting scraper plate component (33) comprises a first material lifting scraper blade unit (331) arranged at the feeding end and a second material lifting scraper blade unit (332) arranged at the rear part, and the first material lifting scraper blade unit (331) and the second material lifting scraper blade unit (332) are arranged on the transmission shaft (32) at intervals along the material conveying direction; the first material lifting scraper unit (331) and the second material lifting scraper unit (332) are both composed of cage-shaped support frames (333), and the cage-shaped support frames (333) are installed on the transmission shaft (32).
4. A rotary reaction device according to claim 3, wherein: the part of the first material raising scraper blade unit (331) close to the feed inlet is provided with a material guide cylinder (3311), the inner cavity of the material guide cylinder (3311) is provided with a material guide screw (3312), and the wall of the material guide cylinder (3311) is uniformly provided with material leaking holes (33111).
5. A rotary reaction device according to claim 3, wherein: the cage-shaped support frame (333) comprises support ring frames (3331) arranged at the front end and the rear end and a material lifting scraper (3332) connected with the two support ring frames (3331).
6. A rotary reaction device as claimed in any one of claims 3 to 5, wherein: the transmission shaft (32) is formed by connecting a plurality of short shafts (321) through movable knuckle bearings (322), a first material lifting scraper unit (331) is installed on one short shaft (321) close to the feeding end, and a second material lifting scraper unit (332) is installed on each subsequent short shaft (321).
7. A graphite class positive/negative pole material continuous reaction treatment facility which characterized in that: the rotary reaction device comprises a feeding mechanism (4), a discharging mechanism (5) and the rotary reaction device as claimed in any one of claims 1 to 6, wherein the feeding mechanism (4) and the discharging mechanism (5) are butted at the corresponding feeding end and discharging end of the rotary reactor (1), and a carbonization/sintering section heating furnace (6) for realizing carbonization/sintering through heating is arranged between the coating/pre-sintering section heating furnace (2) and the discharging mechanism (5) outside the rotary reactor (1).
8. The continuous reaction treatment apparatus of graphite-based positive/negative electrode materials according to claim 7, characterized in that: the rotary reactor (1) is obliquely arranged, the feeding end of the rotary reactor (1) is at a high position, and the discharging end of the rotary reactor (1) is at a low position.
9. The continuous reaction treatment apparatus of graphite-based positive/negative electrode materials according to claim 8, characterized in that: the included angle between the axis of the rotating reactor (1) and the horizontal line is a, and a is more than 0 degree and less than or equal to 10 degrees.
10. The continuous reaction processing apparatus of graphite-based positive/negative electrode materials according to any one of claims 7 to 9, characterized in that: the coating/pre-sintering section heating furnace (2) comprises a first furnace body (21) and a first heating element (22) which is arranged on the first furnace body (21) and extends into the first furnace body, wherein the first furnace body (21) is arranged outside the rotary reactor (1); the carbonization/sintering section heating furnace (6) comprises a second furnace body (61) and a second heating element (62) which is arranged on the second furnace body (61) and extends into the second furnace body, and the second furnace body (61) is arranged outside the rotary reactor (1).
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| CN113101886A (en) * | 2021-04-22 | 2021-07-13 | 湖南阿斯米科技有限公司 | Rotary reaction device and continuous reaction treatment equipment for graphite cathode material/phosphate and ternary anode material of lithium ion battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113101886A (en) * | 2021-04-22 | 2021-07-13 | 湖南阿斯米科技有限公司 | Rotary reaction device and continuous reaction treatment equipment for graphite cathode material/phosphate and ternary anode material of lithium ion battery |
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