CN218924610U - Continuous cladding prilling granulator of lithium ion battery negative pole material - Google Patents
Continuous cladding prilling granulator of lithium ion battery negative pole material Download PDFInfo
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- CN218924610U CN218924610U CN202221613132.8U CN202221613132U CN218924610U CN 218924610 U CN218924610 U CN 218924610U CN 202221613132 U CN202221613132 U CN 202221613132U CN 218924610 U CN218924610 U CN 218924610U
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- rotary kiln
- heating device
- heating
- self
- purification
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- 239000000463 material Substances 0.000 title claims abstract description 31
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 15
- 238000005253 cladding Methods 0.000 title claims description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 94
- 230000005540 biological transmission Effects 0.000 claims abstract description 45
- 238000000746 purification Methods 0.000 claims abstract description 25
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 12
- 239000010406 cathode material Substances 0.000 claims abstract description 11
- 239000011819 refractory material Substances 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 15
- 230000003068 static effect Effects 0.000 claims description 9
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 239000010405 anode material Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 5
- 238000010924 continuous production Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000000737 periodic effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 12
- 238000001816 cooling Methods 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model provides a continuous coating granulating device for a lithium ion battery cathode material, which comprises a spiral blade strong heating device and an indirect heating rotary kiln, wherein the spiral blade strong heating device comprises a self-purification rotary heating transmission device, a transmission shaft, self-purification blades, a self-purification heating device, a heat-insulation refractory material and a furnace tank; the indirect heating rotary kiln is connected in series at the discharge end of the helical blade powerful heating device, the indirect heating rotary kiln comprises a rotary kiln barrel, a rotary kiln heating device and a rotary kiln fire-resistant heat-insulating furnace body, the rotary kiln fire-resistant heat-insulating furnace body is wrapped outside the rotary kiln barrel, and the rotary kiln heating device is arranged between the rotary kiln fire-resistant heat-insulating furnace body and the rotary kiln barrel. The beneficial effects of the utility model are as follows: the method not only can meet continuous production, but also can meet the physical and chemical properties of the coating materials to reach the level of the periodic reaction kettle, and realizes the continuous, automatic, low energy consumption, low pollution, high yield and high quality.
Description
Technical Field
The utility model relates to the technical field of production of negative electrode materials, in particular to a continuous coating granulating device for a lithium ion battery negative electrode material.
Background
In the production process of the lithium ion battery cathode material, the asphalt substance is used for carbon coating or graphite is coated, heating treatment is needed, so that the coating material is uniformly carbonized in coated material particles, the electrical property of the coating material is improved, most of the current cathode material is produced by adopting a periodic reaction kettle in the coating process, and the defects of high energy consumption, low yield and heavy pollution are obvious; attempts have been made to use rotary kilns for continuous production, but the effect is also unsatisfactory, although the yield is improved and the power consumption is reduced, but the quality is also obviously reduced, the asphalt substances are not stirred strongly in the heating process in the rotary kilns, and cannot rotate at a high speed, so that the phenomenon that the melted asphalt substances and the coated materials are clustered can be caused, and if the materials are crushed again, the surface and the internal structure of the coated materials are damaged, and the performance of the coated materials is affected.
Disclosure of Invention
The utility model provides a continuous coating granulating device for a lithium ion battery cathode material, which can meet continuous production and can meet the requirement that the physical and chemical properties of coating materials reach the level of a periodic reaction kettle, thereby realizing continuous, automatic, low energy consumption, low pollution, high yield and high quality.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the utility model provides a lithium ion battery negative pole material continuous cladding prilling granulator, includes helical blade powerful heating device, indirect heating rotary kiln, helical blade powerful heating device includes self-purification rotary heating transmission, transmission shaft, self-cleaning blade, self-purification heating device, thermal-insulated refractory material, stove jar, self-cleaning blade is two sets of helical blade of installing respectively on two transmission shafts, and two sets of helical blade are little semicircle helical blade to two sets of helical blade staggered arrangement intermesh, rotate through gear drive between two transmission shafts, and one of them transmission shaft is connected with self-purification rotary heating transmission, self-cleaning blade is in stove jar, and stove jar outside is equipped with self-cleaning heating device, and self-cleaning heating device outside is equipped with thermal-insulated refractory material; the indirect heating rotary kiln is connected in series at the discharge end of the helical blade powerful heating device, the indirect heating rotary kiln comprises a rotary kiln barrel, a rotary kiln heating device and a rotary kiln fire-resistant heat-insulating furnace body, the rotary kiln fire-resistant heat-insulating furnace body is wrapped outside the rotary kiln barrel, and the rotary kiln heating device is arranged between the rotary kiln fire-resistant heat-insulating furnace body and the rotary kiln barrel.
The feeding port of the spiral blade powerful heating device is connected with a feeder, and the feeder is connected with a feeding tank.
The furnace tank is fixed through external support, bearing seats are fixed at two ends of the furnace tank, the transmission shafts are supported through the bearing seats, and the self-purification rotary heating transmission device is in transmission connection with one transmission shaft through a transmission chain wheel.
The indirect heating rotary kiln is arranged below the spiral vane powerful heating device, a discharging chute is arranged at the discharging end of the spiral vane powerful heating device, and the discharging chute is inserted into the charging fixed end of the indirect heating rotary kiln.
And two ends of the indirect heating rotary kiln are respectively provided with a charging fixed end and a discharging fixed end, and dynamic and static seals are arranged between the charging fixed end, the discharging fixed end and the rotary kiln cylinder.
Compared with the prior art, the utility model has the beneficial effects that:
the continuous coating and granulating device for the lithium ion battery cathode material not only can meet continuous production, but also can meet the requirement that the physical and chemical properties of the coating material reach the level of a periodic reaction kettle, and realizes continuous, automatic, low energy consumption, low pollution, high yield and high quality.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a continuous coating and granulating device for lithium ion battery cathode materials;
fig. 2 is an enlarged view of the screw blade power heating device.
FIG. 3 is a cross-sectional view of the interior of a screw blade power heating device furnace tank.
Fig. 4 is a schematic view of a dynamic and static seal.
In the figure: the device comprises a 1-charging tank, a 2-screw feeder, a 3-self-cleaning rotary heating transmission device, a 4-transmission chain wheel, a 5-gear, a 6-bearing seat, a 7-transmission shaft, 8-self-cleaning blades, a 9-self-cleaning heating device, 10-heat insulation refractory materials, a 11-furnace tank, a 12-discharging chute, a 13-charging fixed end, a 14-charging end dynamic and static seal, a 15-guide wheel group support, a 16-rotary kiln transmission device, a 17-rotary kiln cylinder, a 18-rotary kiln heating device, a 19-rotary kiln refractory and heat insulation furnace body, a 20-discharging fixed end, a 21-discharging end dynamic and static seal, a 22-rotary kiln discharging device, a 23-material cooler, a 24-material cooled discharging device, a 25-flexible sealing ring, a 26-corrugated expander, a 27-inner sealing tube and a 28-distance adjusting screw.
Detailed Description
The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:
1-4, a continuous coating granulating device for lithium ion battery cathode materials comprises a spiral blade strong heating device and an indirect heating rotary kiln, wherein the spiral blade strong heating device comprises a self-purification rotary heating transmission device 3, a transmission shaft 7, self-purification blades 8, a self-purification heating device 9, heat insulation refractory materials 10 and a furnace tank 11, the self-purification blades 8 are two groups of spiral blades respectively arranged on the two transmission shafts 7, the two groups of spiral blades are small semicircular spiral blades (shown in FIG. 3), the two groups of spiral blades are meshed with each other in a staggered manner, the two transmission shafts 7 rotate through the transmission of a gear 5, one transmission shaft 7 is in transmission connection with the self-purification rotary heating transmission device 3, the self-purification blades 8 are arranged in the furnace tank 11, the self-purification heating device 9 is arranged outside the furnace tank 11, and the heat insulation refractory materials 10 are arranged outside the self-purification heating device 9; the indirect heating rotary kiln is connected in series at the discharge end of the helical blade powerful heating device, the indirect heating rotary kiln comprises a rotary kiln barrel 17, a rotary kiln heating device 18 and a rotary kiln fire-resistant heat-insulating furnace body 19, the rotary kiln fire-resistant heat-insulating furnace body 19 is wrapped outside the rotary kiln barrel 17, and the rotary kiln heating device 18 is arranged between the rotary kiln fire-resistant heat-insulating furnace body 19 and the rotary kiln barrel 17. Both the self-cleaning heating device 9 and the rotary kiln heating device 18 can be electrically heated. An end cover is arranged at the upper end of the furnace tank 11, and an explosion-proof exhaust pipeline is arranged on the end cover.
The feeding port of the spiral vane powerful heating device is connected with a spiral feeder 2, and the spiral feeder 2 is connected with a feeding tank 1.
The furnace tank 11 is fixed through external support, bearing seats 6 are fixed at two ends of the furnace tank 11, the transmission shafts 7 are supported through the bearing seats 6, and the self-purification rotary heating transmission device 3 is in transmission connection with one of the transmission shafts 7 through the transmission chain wheel 4.
The indirect heating rotary kiln is arranged below the spiral vane powerful heating device, a discharging chute 12 is arranged at the discharging end of the spiral vane powerful heating device, and the discharging chute 12 is inserted into a charging fixed end 13 of the indirect heating rotary kiln.
The two ends of the indirect heating rotary kiln are respectively provided with a charging fixed end 13 and a discharging fixed end 20, and dynamic and static sealing is arranged between the charging fixed end 13, the discharging fixed end 20 and the rotary kiln cylinder 17.
The whole inclination angle of the indirect heating rotary kiln is 1-5 degrees, the rotary kiln cylinder 17 is driven to rotate automatically through the rotary kiln transmission device 16, the rotary kiln transmission device 16 adopts variable frequency speed regulation, and the rotary kiln cylinder 17 is provided with a guide wheel group support 15.
Referring to fig. 4, the dynamic and static seals (the dynamic and static seal 21 at the discharging end and the dynamic and static seal 14 at the charging end) are composed of a flexible sealing ring 25, an inner sealing tube 27, a distance adjusting screw rod 28 and a corrugated expander 26, wherein the inner sealing tube 27 is connected with the rotary kiln cylinder 17 through the distance adjusting screw rod, and the corrugated expander 26 for sealing is further arranged between the rotary kiln cylinder 17 and the inner sealing tube 27. The flexible sealing ring 25 is connected with the loading fixed end 13 or the discharging fixed end 20, and wraps the outer part of the inner sealing tube 27 for sealing.
The middle of the distance-adjusting screw rod 28 is provided with a nut, the two ends of the distance-adjusting screw rod are provided with screw rods with positive and negative threads, the length of the distance-adjusting screw rod 28 is adjusted by screwing the screw nuts, so that the radial distance between the inner sealing tube 27 and the rotary kiln cylinder 17 is adjusted, the sealing surface and the rotary kiln are concentric in the circumferential direction through the adjustment of the screw rods, and the corrugated expander 26 plays a role in sealing the inside and the outside of the kiln and can provide position compensation during debugging.
The preparation method comprises the steps of a low-temperature reaction section and a high-temperature reaction section, wherein the low-temperature reaction section adopts two groups of half spiral blades to be meshed with each other, the materials to be coated are strongly stirred and dispersed, meanwhile, the materials are pushed to rotate and advance by the rising angle of the spiral blades, the continuous heating coating process is completed, and the heating interval of the low-temperature reaction section is 550+/-50 ℃; the coated material at about 550 ℃ has no secondary agglomeration phenomenon, the high-temperature reaction section is connected in series at the discharge end of the low-temperature reaction section, the high-temperature reaction section is an indirect heating rotary kiln, and the heating interval is 1000+/-50 ℃.
The technological process of the utility model is as follows:
the materials from the charging tank 1 are sent into a spiral blade strong heating device through a gate valve, an air lock and a quantitative spiral feeder 2, the materials are driven by a transmission shaft 7 and a self-cleaning blade 8 to move from a low temperature section to a high temperature section, a self-cleaning rotary heating transmission device 3 carries out variable frequency speed regulation, the transmission shaft 7 is supported on a bearing seat 6 and rotates under the driving of a meshing gear, a furnace tank 11 is made of heat-resistant steel, a heating device 9 is arranged outside the furnace tank 11 to indirectly heat the furnace tank 11, the heating temperature is controlled according to the technological requirements, the self-cleaning blade 8 has a set spiral lift angle, the combined action of the variable frequency transmission device reaches a preset material conveying speed, and the materials reaching a first section temperature heating set value are sent into a second set of equipment 'indirect heating rotary kiln' through a (corrugated expansion pipeline and an air lock valve) blanking chute 12, and the heating temperature is adjustable from 550 ℃ to 1000 ℃. The material conveying in the indirect heating rotary kiln is in coordination with the upper-level 'spiral blade powerful heating device', the heated material of the rotary kiln is sent into a material cooler 23 through a material discharging fixed end 20 and a rotary kiln discharging device 22 for indirect cooling, the material cooler 24 is a spiral feeder with a circulating water cooling wall, the central shaft of the spiral feeder is also used for conveying the material cooled to 100 ℃ by cooling circulating water to the material cooling rear discharging device 24, and the whole material cladding heating treatment process is completed.
The utility model realizes the continuous, automatic, low energy consumption, low pollution, high yield and high quality production of the continuous coating granulation process of the cathode material. Under the same investment, the energy consumption is reduced by more than 30%, and the yield is improved by more than 50%.
Claims (5)
1. The utility model provides a lithium ion battery negative pole material continuous cladding prilling granulator, which is characterized in that, including helical blade powerful heating device, indirect heating rotary kiln, helical blade powerful heating device includes self-purification rotary heating transmission, transmission shaft, self-purification blade, self-purification heating device, thermal-insulated refractory material, stove jar, self-purification blade is two sets of helical blade of installing respectively on two transmission shafts, and two sets of helical blade are little semicircle helical blade to two sets of helical blade staggered arrangement intermesh, rotate through gear drive between two transmission shafts, and one of them transmission shaft is connected with self-purification rotary heating transmission, self-purification blade is in the stove jar, and stove jar outside is equipped with self-purification heating device, and self-purification heating device outside is equipped with thermal-insulated refractory material; the indirect heating rotary kiln is connected in series at the discharge end of the helical blade powerful heating device, the indirect heating rotary kiln comprises a rotary kiln barrel, a rotary kiln heating device and a rotary kiln fire-resistant heat-insulating furnace body, the rotary kiln fire-resistant heat-insulating furnace body is wrapped outside the rotary kiln barrel, and the rotary kiln heating device is arranged between the rotary kiln fire-resistant heat-insulating furnace body and the rotary kiln barrel.
2. The continuous coating granulation device for the lithium ion battery cathode material according to claim 1, wherein a feed inlet of the spiral blade strong heating device is connected with a feeder, and the feeder is connected with a charging bucket.
3. The continuous coating granulation device for the lithium ion battery cathode material according to claim 2, wherein the furnace tank is fixed through an external support, bearing seats are fixed at two ends of the furnace tank, the transmission shafts are supported through the bearing seats, and the self-purification rotary heating transmission device is in transmission connection with one transmission shaft through a transmission sprocket.
4. The continuous coating granulation device for the lithium ion battery cathode material according to claim 2, wherein the indirect heating rotary kiln is arranged below the spiral blade strong heating device, a discharging end of the spiral blade strong heating device is provided with a discharging chute, and the discharging chute is inserted into a charging fixed end of the indirect heating rotary kiln.
5. The continuous coating granulation device for the lithium ion battery anode material according to claim 2, wherein two ends of the indirect heating rotary kiln are respectively provided with a charging fixed end and a discharging fixed end, and dynamic and static sealing is arranged between the charging fixed end and the discharging fixed end and the rotary kiln cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221613132.8U CN218924610U (en) | 2022-06-24 | 2022-06-24 | Continuous cladding prilling granulator of lithium ion battery negative pole material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221613132.8U CN218924610U (en) | 2022-06-24 | 2022-06-24 | Continuous cladding prilling granulator of lithium ion battery negative pole material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218924610U true CN218924610U (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221613132.8U Active CN218924610U (en) | 2022-06-24 | 2022-06-24 | Continuous cladding prilling granulator of lithium ion battery negative pole material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218924610U (en) |
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2022
- 2022-06-24 CN CN202221613132.8U patent/CN218924610U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240522 Address after: No. 265 Yueling Road, Lishan District, Anshan City, Liaoning Province, 114000, Liaoning Laser Industry Park, East Factory Building West 1 Patentee after: Liaoning Yanfeng Machinery Equipment Co.,Ltd. Country or region after: China Address before: No. 805, block C, Wanxi city square, Tiedong District, Anshan City, Liaoning Province, 114000 Patentee before: Zhao Yanfeng Country or region before: China |