CN117287968A - Graphite crucible for carbonization of lithium battery cathode material - Google Patents
Graphite crucible for carbonization of lithium battery cathode material Download PDFInfo
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- CN117287968A CN117287968A CN202311567238.8A CN202311567238A CN117287968A CN 117287968 A CN117287968 A CN 117287968A CN 202311567238 A CN202311567238 A CN 202311567238A CN 117287968 A CN117287968 A CN 117287968A
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- graphite
- fixedly connected
- plates
- plate
- ring
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 139
- 239000010439 graphite Substances 0.000 title claims abstract description 139
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 84
- 239000010406 cathode material Substances 0.000 title claims abstract description 41
- 238000003763 carbonization Methods 0.000 title claims description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 238000003756 stirring Methods 0.000 claims abstract description 34
- 239000007773 negative electrode material Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 31
- 238000007790 scraping Methods 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 11
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 239000010405 anode material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 27
- 238000005096 rolling process Methods 0.000 abstract description 21
- 238000005054 agglomeration Methods 0.000 abstract description 8
- 230000002776 aggregation Effects 0.000 abstract description 8
- 238000012545 processing Methods 0.000 abstract description 8
- 238000010000 carbonizing Methods 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 6
- 230000008569 process Effects 0.000 description 22
- 230000009471 action Effects 0.000 description 16
- 238000007599 discharging Methods 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/10—Crucibles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model relates to the technical field of graphite products, in particular to a graphite crucible for carbonizing a lithium battery cathode material, which comprises a graphite circular plate and two graphite arc plates, wherein the two graphite arc plates are positioned at the top of the graphite circular plate, the side surface of the graphite circular plate is fixedly connected with a supporting ring, the bottom of the supporting ring is fixedly connected with a plurality of supporting rods along the circumferential direction, and an assembling and fixing mechanism is connected between the graphite circular plate and the two graphite arc plates; according to the utility model, the non-dischargeable agglomerated raw materials are crushed in a contact rolling manner, and are continuously discharged through rotary stirring, so that the agglomeration phenomenon of the carbonized lithium battery negative electrode material is effectively reduced, the subsequent processing procedures are reduced, and the processing efficiency of the lithium battery negative electrode material is improved.
Description
Technical Field
The utility model relates to the technical field of graphite products, in particular to a graphite crucible for carbonizing a negative electrode material of a lithium battery.
Background
The graphite crucible is processed by taking natural crystalline flake graphite as a main raw material and taking plastic refractory clay or carbon as a binder, and has the characteristics of high temperature resistance, strong heat conduction performance, good corrosion resistance, long service life and the like; in the high-temperature use process, the thermal expansion coefficient is small, and the high-temperature heat-resistant material has certain strain resistance to quenching and rapid heating; the corrosion resistance to acidic and alkaline solutions is strong, the chemical stability is excellent, and no chemical reaction is participated in the smelting process; the lithium battery anode material is prepared by mixing an anode active substance carbon material or a non-carbon material, a binder and an additive, and is usually placed in a graphite crucible for high-temperature carbonization in the processing process.
The prior art discloses a part of patent documents related to the technical field of graphite products, and the application number is CN202220279764.9, and discloses a graphite crucible for carbonizing a lithium battery cathode material, which comprises a graphite side plate and a graphite bottom plate, wherein one end of the graphite side plate is longitudinally penetrated and provided with a splicing female groove, the other end of the graphite side plate is extended and provided with a splicing male end which is in sealing fit connection with the splicing female groove, and the splicing female groove of one graphite side plate is spliced and connected with the splicing male end of the other graphite side plate; the bottom of graphite curb plate is equipped with first splice groove, and graphite bottom plate corresponds first splice groove and is equipped with the second splice groove, and graphite bottom plate and graphite curb plate overlap joint seal are installed in first splice groove, second splice groove by the cooperation of connecting the mold insert and are connected fixedly.
In the prior art, a bearing cavity is formed by assembling and splicing graphite plates, so that a lithium battery negative electrode material is placed, the bearing cavity is heated at high temperature, the internal lithium battery negative electrode material is carbonized at high temperature, when the graphite plates are assembled into a rectangular shell and the lithium battery negative electrode material is stored, the lithium battery negative electrode material is easy to be embedded in an internal right-angle gap, so that the carbonized negative electrode material is difficult to take out, and in the carbonization process of the lithium battery negative electrode material, the negative electrode powder is easy to agglomerate, so that the taken-out carbonized negative electrode powder is worse, and the next scattering and grinding are needed, so that the processing efficiency of the lithium battery negative electrode material is affected.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a graphite crucible for carbonizing a lithium battery cathode material.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the graphite crucible for carbonizing the lithium battery cathode material comprises a graphite circular plate and two graphite arc plates, wherein the two graphite arc plates are positioned at the top of the graphite circular plate, the two graphite arc plates form a complete circular ring shape, the side surface of the graphite circular plate is fixedly connected with a supporting ring, the bottom of the supporting ring is fixedly connected with a plurality of supporting rods along the circumferential direction, and an assembling and fixing mechanism is connected between the graphite circular plate and the two graphite arc plates;
the bottom of the graphite circular plate is provided with a plurality of groups of discharge holes along the circumferential direction, the bottom of the graphite circular plate is connected with a movable stop mechanism, a screw rod is fixedly connected to the axis of the top of the graphite circular plate, the lower part of the side surface of the screw rod is provided with an annular groove, a rotating ring is rotationally connected to the annular groove, and the side surface of the rotating ring is fixedly connected with a plurality of stirring plates along the circumferential direction;
the top threaded connection of lead screw has the go-between, the below of go-between is provided with a plurality of sector plates along circumference, the sector plate with dial the quantity of flitch the same, just dial two adjacent below in space department between the sector plate, the sector plate is located graphite arc plate's top, the go-between with all be connected with elasticity between the sector plate and give way the mechanism, the sector plate with dial and be connected with synchronous rotary mechanism between the flitch.
Preferably, the assembly fixing mechanism comprises a limiting ring and two arc grooves, the limiting ring is fixedly connected to the top of the graphite circular plate, the two arc grooves are respectively formed in the bottoms of the graphite arc plates, the limiting ring is located in the two arc grooves, one of the limiting grooves is formed in the upper portions of the two ends of the graphite arc plates, the other limiting groove is fixedly connected to the upper portions of the two ends of the graphite arc plates, the corresponding limiting grooves can be respectively clamped by the limiting bars, two limiting blocks are fixedly connected to the side faces of the graphite arc plates, limiting bolts are arranged on the limiting blocks, two connecting holes are formed in the supporting ring along the circumferential direction, and one ends of the limiting bolts penetrate through the limiting blocks and are in threaded connection with the corresponding connecting holes.
Preferably, the movable stop mechanism comprises a limiting pin, the limiting pin is fixedly connected to the bottom axis of the graphite circular plate, a first movable ring is rotationally connected to the limiting pin, a plurality of stop bars are fixedly connected to the side face of the first movable ring along the circumferential direction, the number of the stop bars is the same as the radial number of the discharge holes, the stop bars are located at the bottoms of a corresponding group of discharge holes, a plurality of second movable rings are fixedly connected to the other ends of the stop bars together, and a positioning mechanism is connected to the second movable ring.
Preferably, the positioning mechanism comprises a mounting plate and two positioning rods, the mounting plate is fixedly connected to the side face of the supporting ring, the two positioning rods are fixedly connected to the side face of the second movable ring, positioning holes are formed in one ends of the positioning rods, pull rings are arranged at the tops of the mounting plate, inserting pins are fixedly connected to the bottoms of the pull rings, one ends of the inserting pins penetrate through the mounting plate and extend to the positions below the mounting plate and then are inserted into the corresponding positioning holes, retaining rings are fixedly connected to the surfaces of the inserting pins, first springs are sleeved on the inserting pins, and two ends of the first springs are fixedly connected to the retaining rings and the mounting plate respectively.
Preferably, the elastic abdication mechanism comprises a plurality of fixing strips, the fixing strips are fixedly connected to the side face of the connecting ring along the circumferential direction, the fixing strips are respectively located above the corresponding sector plates, two connecting pins are respectively inserted on the fixing strips in a sliding mode, the bottom ends of the connecting pins are respectively and fixedly connected to the tops of the corresponding sector plates, second springs are respectively sleeved on the connecting pins, and two ends of each second spring are respectively and fixedly connected to the corresponding sector plates and the corresponding fixing strips.
Preferably, the synchronous rotating mechanism comprises a plurality of fixing rods, the fixing rods are respectively and fixedly connected to the tops of the corresponding stirring plates, the tops of the fixing rods extend to the upper portion of the sector plates along the gaps between the adjacent two sector plates, the fixing rods are respectively contacted with the side faces of the adjacent two sector plates, and a plurality of rotating discs are fixedly connected to the tops of the fixing rods together.
Preferably, the bottom of sector plate has all been seted up the standing groove, the inside of standing groove articulates there is the scraping plate, the articulated department of scraping plate all fixed mounting has the torsional spring.
Compared with the prior art, the utility model has the following beneficial effects:
1. the side is circular shape through graphite plectane and two graphite arc plates equipment and holds the cavity, and the effectual raw materials that reduces the discharge in-process gap department remain, stir at first with powdered lithium cell negative pole material through the rotation and discharge to crush through the mode that the contact rolled can't be discharged the agglomeration raw materials, resume stir through the rotation and discharge, the effectual lithium cell negative pole material agglomeration phenomenon after the carbonization that reduces follow-up processing procedure, has improved lithium cell negative pole material's machining efficiency.
2. When the sector plate moves downwards along with the connecting ring and contacts and extrudes with the agglomerated lithium battery cathode material, the connecting pin moves upwards relatively along the sliding insertion part of the fixing strip and extrudes the second spring to generate compression deformation, so that the sector plate continues to rotate and roll at the same height in the process of moving the connecting ring downwards, flexible abdication in the rolling process is improved, blocking caused by rigid extrusion is prevented, and the discharging effect on the lithium battery cathode material is improved.
3. The sector plates drive the connecting ring above to rotate, and the sector plates move downwards in the rotating process under the action of the connecting ring and the screw rod, so that the sector plates move downwards in the stirring process of stirring the stirring plate and are ready for rotating and rolling the lithium battery cathode materials with the clustered bottoms.
4. Under the rotation effect of a plurality of scraping plates, the top of the lithium battery negative electrode material at the bottom is elastically scraped, the smoothness of the surface of the lithium battery negative electrode material is improved, the rolling effect of the sector plate is improved, when the sector plate is completely contacted and rolled with the lithium battery negative electrode material, the scraping plates are extruded and move to the inside of the placing groove along the hinged position, the bottom of the sector plate is kept smooth, and after rolling, the scraping plates lose extrusion effect and recover to an initial state under the action of the torsion spring in the process of upward movement of the sector plate.
Drawings
FIG. 1 is a schematic side view of the structure of the present utility model;
FIG. 2 is a schematic view of the bottom view of the structure of the present utility model;
FIG. 3 is an enlarged schematic view of the structure A in FIG. 2 according to the present utility model;
FIG. 4 is a schematic view of a portion of the structure of the present utility model (one of the graphite arc plates is hidden);
FIG. 5 is an enlarged schematic view of the structure at B in FIG. 4 according to the present utility model;
FIG. 6 is an enlarged schematic view of the structure of FIG. 4 at C in accordance with the present utility model;
FIG. 7 is a schematic diagram of the cooperation structure of the screw rod, the kick-out plate and the fixing rod;
FIG. 8 is an enlarged schematic view of the structure at D in FIG. 7 according to the present utility model;
FIG. 9 is an exploded view of two graphite arc plates mated configuration of the present utility model;
fig. 10 is a schematic diagram of a mating structure of a sector plate and a sweep plate according to the present utility model.
In the figure: 1. a graphite circular plate; 2. a graphite arc plate; 3. a support ring; 4. a support rod; 5. a discharge hole; 6. a screw rod; 7. an annular groove; 8. a rotating ring; 9. a kick-out plate; 10. a connecting ring; 11. a sector plate; 12. a limiting ring; 13. an arc-shaped groove; 14. a limit groove; 15. a limit bar; 16. a limiting block; 17. a limit bolt; 18. a connection hole; 19. a limiting pin; 20. a first movable ring; 21. a shielding strip; 22. a second movable ring; 23. a mounting plate; 24. a positioning rod; 25. positioning holes; 26. a pull ring; 27. a plug pin; 28. a baffle ring; 29. a first spring; 30. a fixing strip; 31. a connecting pin; 32. a second spring; 33. a fixed rod; 34. a rotating disc; 35. a placement groove; 36. brushing the material plate; 37. and (3) a torsion spring.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
The graphite crucible for carbonizing the lithium battery cathode material comprises a graphite circular plate 1 and two graphite arc plates 2, wherein the two graphite arc plates 2 are positioned at the top of the graphite circular plate 1, the two graphite arc plates 2 form a complete circular ring shape, a support ring 3 is fixedly connected to the side surface of the graphite circular plate 1, a plurality of support rods 4 are fixedly connected to the bottom of the support ring 3 along the circumferential direction, and an assembling and fixing mechanism is connected between the graphite circular plate 1 and the two graphite arc plates 2;
a plurality of groups of discharge holes 5 are formed in the bottom of the graphite circular plate 1 along the circumferential direction, a movable stop mechanism is connected to the bottom of the graphite circular plate 1, a screw rod 6 is fixedly connected to the top axis of the graphite circular plate 1, an annular groove 7 is formed in the lower portion of the side face of the screw rod 6, a rotating ring 8 is rotatably connected to the annular groove 7, and a plurality of stirring plates 9 are fixedly connected to the side face of the rotating ring 8 along the circumferential direction;
the top end of the screw rod 6 is connected with a connecting ring 10 in a threaded manner, a plurality of sector plates 11 are arranged below the connecting ring 10 along the circumferential direction, the number of the sector plates 11 is the same as that of the material poking plates 9, the number of the adjacent two sector plates 11 is lower than that of the gap between the material poking plates 9, the sector plates 11 are positioned above the graphite arc plates 2, elastic abdicating mechanisms are connected between the rotating ring 8 and the sector plates 11, a certain elastic movement space is reserved between the sector plates 11 and the rotating ring 8 through the action of the elastic abdicating mechanisms, the sector plates 11 rotate and roll under the elastic action, the condition of extrusion and clamping is avoided, and a synchronous rotating mechanism is connected between the sector plates 11 and the material poking plates 9; during operation, in the prior art, a bearing cavity is formed by assembling and splicing graphite plates, so that a lithium battery negative electrode material is placed, the bearing cavity is heated at high temperature, so that the internal lithium battery negative electrode material is carbonized, when the graphite plates are assembled into a rectangular shell and the lithium battery negative electrode material is stored, the lithium battery negative electrode material is easy to be embedded in an internal right-angle gap, so that the carbonized negative electrode material is difficult to take out, in the carbonization process of the lithium battery negative electrode material, the negative electrode powder is easy to agglomerate, so that the state of the taken carbonized negative electrode powder is poor, the next step of scattering and grinding is needed, and the processing efficiency of the lithium battery negative electrode material is affected; the technical proposal can solve the problems, and the specific working mode is as follows, the powdery lithium battery cathode material is poured into the round shell formed by the graphite circular plate 1 and the two graphite arc plates 2, the multi-group discharge holes 5 at the bottom of the graphite circular plate 1 are blocked by the movable material blocking mechanism, the round shell formed by the graphite circular plate 1 and the two graphite arc plates 2 is heated, the internal lithium battery cathode material generates carbonization reaction under the action of high temperature, after carbonization is finished, the shielding of the multi-group discharge holes 5 at the bottom of the graphite circular plate 1 by the movable material blocking mechanism is released, the carbonized lithium battery cathode material falls downwards along the multi-group discharge holes 5, the carbonized lithium battery cathode material is collected by the collection equipment arranged at the bottom of the graphite circular plate 1 in advance before falling, and the staff operates the synchronous rotating mechanism to enable the plurality of sector plates 11 and the deflector plate 9 to synchronously rotate, the plurality of stirring plates 9 rotate around the annular groove 7 under the limit action of the rotating ring 8, and stir the lithium battery cathode material below in a rotating process, so that the lithium battery cathode material below can be stirred to the upper part of the corresponding discharging hole 5 in a rotating way to timely discharge, the sector plates 11 synchronously rotate along with the stirring plates 9 and drive the connecting ring 10 to rotate, the connecting ring 10 moves downwards along the screw rod 6 under the threaded connection action of the screw rod 6 in the rotating process, the plurality of sector plates 11 synchronously move downwards, when the stacking height of the lithium battery cathode material gradually decreases along with the discharging, the sector plates 11 correspondingly fall along with the rotation, the lithium battery cathode material at the top of the graphite circular plate 1 is discharged from a plurality of groups of discharging holes 5 along with the stirring of the rotation of the stirring plates 9, the residual lithium battery cathode material is larger in volume after agglomeration and cannot be discharged from the discharge hole 5, and remains at the top of the graphite circular plate 1 along with the stirring of the stirring plate 9 all the time, when a plurality of sector plates 11 gradually approach to the top of the graphite circular plate 1, the bottoms of the sector plates 11 are contacted and extruded with the agglomerated lithium battery cathode material, the agglomerated lithium battery cathode material is crushed again and recovered into powder, so that the agglomerated lithium battery cathode material can be discharged along the discharge hole 5, when the sector plates 11 move to the top of the stirring plate 9 and move downwards continuously, the gap between the two adjacent sector plates 11 can enable the stirring plate 9 to pass just, so that the sector plates 11 can move downwards continuously and roll, and when the crushed lithium battery cathode material between the sector plates 11 and the graphite circular plate 1 is not discharged in time in the process of continuously moving downwards, the elastic abdication mechanism enables the sector plates 11 to elastically abdy, so that the lithium battery cathode material between the sector plates 11 and the graphite circular plates 1 has enough time to be stirred into the discharge holes 5 by the stirring plate 9 for discharge, when the graphite circular plates 1 and the plurality of sector plates 11 are contacted with each other, the discharge of the lithium battery cathode material is finished, the graphite circular plates 1 and the two graphite arc plates 2 are assembled into a containing cavity with circular side surfaces, the raw material residues at the gaps in the discharge process are effectively reduced, the powdery lithium battery cathode material is firstly discharged by rotary stirring, the agglomerated raw material which cannot be discharged is crushed by a contact rolling mode, the discharge is continuously carried out by rotary stirring, the agglomeration phenomenon of the carbonized lithium battery cathode material is effectively reduced, the subsequent processing procedure is reduced, the processing efficiency of the lithium battery cathode material is improved.
As a further embodiment of the utility model, the assembling and fixing mechanism comprises a limiting ring 12 and two arc-shaped grooves 13, wherein the limiting ring 12 is fixedly connected to the top of a graphite circular plate 1, the two arc-shaped grooves 13 are respectively arranged at the bottoms of two graphite arc plates 2, the limiting ring 12 is positioned in the two arc-shaped grooves 13, the upper parts of two ends of one graphite arc plate 2 are respectively provided with a limiting groove 14, the upper parts of two ends of the other graphite arc plate 2 are respectively fixedly connected with a limiting strip 15, the limiting strips 15 can be respectively clamped into the corresponding limiting grooves 14, the side surfaces of the two graphite arc plates 2 are respectively fixedly connected with a limiting block 16, limiting bolts 17 are respectively arranged on the limiting blocks 16, two connecting holes 18 are circumferentially arranged on the supporting ring 3, and one ends of the limiting bolts 17 penetrate through the limiting blocks 16 and are in the corresponding connecting holes 18 in a threaded manner; during operation, the graphite arc plates 2 provided with the limiting grooves 14 are placed at the top of the graphite circular plate 1, the limiting rings 12 are used for limiting the arc grooves 13 at the bottom of the graphite arc plates 2, then the other graphite arc plate 2 is vertically moved downwards, the limiting strips 15 at the two ends of the graphite arc plates 2 which are vertically moved downwards are inserted into the corresponding limiting grooves 14, so that limiting connection of the two graphite arc plates 2 is completed, the two graphite arc plates 2 are rotated around the limiting rings 12, the through holes of the two limiting blocks 16 are overlapped with the corresponding connecting holes 18, and threaded connection is carried out through the limiting bolts 17, so that positioning assembly of the graphite circular plate 1 and the two graphite arc plates 2 is completed.
As a further embodiment of the utility model, the movable stop mechanism comprises a limiting pin 19, the limiting pin 19 is fixedly connected to the bottom axle center of the graphite circular plate 1, a first movable ring 20 is rotationally connected to the limiting pin 19, a plurality of blocking strips 21 are fixedly connected to the side surface of the first movable ring 20 along the circumferential direction, the number of the blocking strips 21 is the same as the radial group number of the discharge holes 5 and are positioned at the bottom of a corresponding group of the discharge holes 5, the other ends of the blocking strips 21 are fixedly connected with a second movable ring 22 together, and a positioning mechanism is connected to the second movable ring 22; during operation, the shielding strips 21 are located at the bottoms of the corresponding two groups of discharge holes 5, so that the discharge holes 5 are shielded, the second movable ring 22 is positioned through the positioning mechanism, the first movable ring 20 is limited to rotate around the limiting pin 19, when the discharge is required, the positioning of the second movable ring 22 is released, the first movable ring 20 is rotated around the limiting pin 19, the shielding strips 21 are located between the two adjacent groups of discharge holes 5, and the shielding of the discharge holes 5 is released and the normal discharge is performed.
As a further embodiment of the utility model, the positioning mechanism comprises a mounting plate 23 and two positioning rods 24, wherein the mounting plate 23 is fixedly connected to the side surface of the support ring 3, the two positioning rods 24 are fixedly connected to the side surface of the second movable ring 22, one ends of the positioning rods 24 are provided with positioning holes 25, the top of the mounting plate 23 is provided with a pull ring 26, the bottom of the pull ring 26 is fixedly connected with a plug pin 27, one end of the plug pin 27 penetrates through the mounting plate 23 and extends to the lower part of the mounting plate 23 and then is inserted into the corresponding positioning hole 25, the surface of the plug pin 27 is fixedly connected with a baffle ring 28, a first spring 29 is sleeved on the plug pin 27, and two ends of the first spring 29 are respectively fixedly connected to the baffle ring 28 and the mounting plate 23; during operation, the bottom ends of the plug pins 27 are inserted into the corresponding positioning holes 25, so that the shielding strips 21 are positioned at the bottoms of the corresponding discharge holes 5 and shield the discharge holes 5, when the discharge is required, the pull ring 26 is pulled upwards, the pull ring 26 drives the plug pins 27 to move upwards, the plug pins 27 drive the baffle rings 28 to move upwards and squeeze the first springs 29 to generate compression deformation, one ends of the plug pins 27 are separated from the corresponding positioning holes 25, then the second movable rings 22 are rotated, the other positioning rods 24 are moved to the bottoms of the plug pins 27, the pull ring 26 is loosened, the plug pins 27 are inserted into the corresponding positioning holes 25 under the elastic action of the first springs 29 and are positioned again, the shielding strips 21 are prevented from blocking the discharge holes 5 in the discharge process, and the stability in the discharge process is improved.
As a further embodiment of the present utility model, the elastic abdication mechanism comprises a plurality of fixing strips 30, the plurality of fixing strips 30 are fixedly connected to the side surface of the connection ring 10 along the circumferential direction, the plurality of fixing strips 30 are respectively positioned above the corresponding sector plates 11, two connecting pins 31 are respectively inserted on the fixing strips 30 in a sliding manner, the bottom ends of the connecting pins 31 are respectively and fixedly connected to the tops of the corresponding sector plates 11, second springs 32 are respectively sleeved on the connecting pins 31, and two ends of the second springs 32 are respectively and fixedly connected to the corresponding sector plates 11 and the corresponding fixing strips 30; when the connecting ring 10 rotates on the screw rod 6, the connecting ring 10 drives the fixing strips 30 on the side face to synchronously rotate, the fixing strips 30 drive the sector plates 11 to synchronously rotate through the action of the connecting pins 31, when the sector plates 11 move downwards along with the connecting ring 10 and are in contact extrusion with agglomerated lithium battery cathode materials, the connecting pins 31 move upwards relatively along the sliding insertion positions of the fixing strips 30 and extrude the second springs 32 to generate compression deformation, so that the sector plates 11 continue to rotate and roll at the same height in the process of downwards moving the connecting ring 10, flexible yielding in the rolling process is improved, blocking caused by rigid extrusion is prevented, and the discharging effect on the lithium battery cathode materials is improved.
As a further embodiment of the present utility model, the synchronous rotation mechanism includes a plurality of fixing rods 33, the plurality of fixing rods 33 are respectively and fixedly connected to the tops of the corresponding stirring plates 9, the top ends of the fixing rods 33 extend to the upper parts of the sector plates 11 along the gaps between the two adjacent sector plates 11, the fixing rods 33 are respectively contacted with the side surfaces of the two adjacent sector plates 11, and the top ends of the plurality of fixing rods 33 are jointly and fixedly connected with a rotation disc 34; during operation, the staff carries out unidirectional rotation to the rolling disc 34, the rolling disc 34 drives a plurality of dead levers 33 to synchronously rotate, the dead levers 33 drive corresponding stirring plates 9 to rotate, and in the process of the rotation of the dead levers 33, the sector plates 11 on one side of the extrusion rotation direction rotate, so that the plurality of sector plates 11 rotate, the sector plates 11 drive the connecting ring 10 above to rotate, the plurality of sector plates 11 move downwards in the rotating process under the action of the connecting ring 10 and the screw rod 6, and the plurality of sector plates 11 move downwards in the stirring plate 9 rotating stirring process and are ready for rolling the negative electrode materials of lithium batteries with the agglomerated bottoms.
As a further embodiment of the utility model, the bottom of the sector plate 11 is provided with a placing groove 35, the inside of the placing groove 35 is hinged with a scraping plate 36, and torsion springs 37 are fixedly arranged at the hinged positions of the scraping plate 36; when the fan-shaped plates 11 move downwards and are close to the lithium battery cathode materials with the agglomerated bottom, one side of the material scraping plate 36 is firstly contacted with the lithium battery cathode materials with the agglomerated bottom, and under the rotation action of the material scraping plates 36, the top of the lithium battery cathode materials with the agglomerated bottom is elastically scraped, so that the smoothness of the surface of the lithium battery cathode materials is improved, the rolling effect of the fan-shaped plates 11 is improved, when the fan-shaped plates 11 are completely contacted with the lithium battery cathode materials for rolling, the material scraping plates 36 are extruded and move into the placing grooves 35 along the hinging positions, the bottom of the fan-shaped plates 11 is kept flat, and in the process that the fan-shaped plates 11 move upwards after rolling is finished, the material scraping plates 36 lose extrusion action and recover to an initial state under the action of the torsion springs 37.
The working principle of the utility model is as follows:
pouring powdery lithium battery anode materials into a round shell formed by a graphite circular plate 1 and two graphite arc plates 2, blocking a plurality of groups of discharge holes 5 at the bottom of the graphite circular plate 1 through a movable stop mechanism, heating the round shell formed by the graphite circular plate 1 and the two graphite arc plates 2 to enable the lithium battery anode materials inside to generate carbonization reaction under the action of high temperature, after carbonization, enabling carbonized lithium battery anode materials to drop downwards along the plurality of groups of discharge holes 5 by removing the shielding of the movable stop mechanism to the plurality of groups of discharge holes 5 at the bottom of the graphite circular plate 1, collecting the carbonized lithium battery anode materials by arranging a collecting device at the bottom of the graphite circular plate 1 in advance before dropping, operating a synchronous rotating mechanism by a staff to enable a plurality of fan-shaped plates 11 and a stirring plate 9 to synchronously rotate, the plurality of stirring plates 9 rotate around the annular groove 7 under the limit action of the rotating ring 8, and stir the lithium battery cathode material below in a rotating process, so that the lithium battery cathode material below can be stirred to the upper part of the corresponding discharging hole 5 in a rotating way to timely discharge, the sector plates 11 synchronously rotate along with the stirring plates 9 and drive the connecting ring 10 to rotate, the connecting ring 10 moves downwards along the screw rod 6 under the threaded connection action of the screw rod 6 in the rotating process, the plurality of sector plates 11 synchronously move downwards, the stacking height of the lithium battery cathode material gradually decreases along with the discharging, the sector plates 11 correspondingly fall along with the rotating, after the lithium battery cathode material at the top of the graphite circular plate 1 is discharged from the plurality of groups of discharging holes 5 along with the stirring of the rotating stirring plates 9, the residual lithium battery cathode material is large in volume after being agglomerated, thereby can't discharge from the relief hole 5 to stir along with the deflector plate 9 all the time and remain at graphite plectane 1 top, when a plurality of sector plates 11 are close graphite plectane 1 top gradually, the bottom of a plurality of sector plates 11 and caking lithium cell negative pole material contact extrusion of agglomeration, and with the lithium cell negative pole material of agglomeration crushing again, and resume the powder form, thereby can discharge along relief hole 5, a plurality of sector plates 11 are moving to deflector plate 9's top and when continuing to move down, the space between two adjacent sector plates 11 can make deflector plate 9 just pass through, thereby make sector plates 11 can continue the downward movement rolling, and when sector plates 11 continue the downward movement in-process, the lithium cell negative pole material of grinding between sector plates 11 and the graphite plectane 1 does not in time discharge, through the effect of elasticity abdication mechanism, make sector plates 11 carry out elasticity abdication, make lithium cell negative pole material between sector plates 11 and the graphite plectane have sufficient time by deflector plate 9 to discharge in relief hole 5, when removing to deflector plate 9 and the top and continuing to move down, the lithium cell negative pole material of coiling plate 11 and the lithium cell negative pole material of coiling and the lithium cell negative pole material of agglomeration between the graphite plectane 1 can not carry out the continuous discharge through the continuous movement rolling, the continuous rolling of circular negative pole material of charge plate 1, the hole is formed by the lithium cell material of rolling continuous rolling, the hole is at first, the hole is formed by the continuous rolling material of lithium cell negative pole material is discharged, the continuous rolling hole is reduced, the negative pole material is discharged through the continuous rolling hole is processed, the lithium cell material is discharged through the round material is more than the round material is discharged through the round material of the round material.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the utility model, and that various changes and modifications may be effected therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (7)
1. The utility model provides a graphite crucible for lithium cell negative pole material carbonization, includes graphite plectane (1) and two graphite arc boards (2), its characterized in that, two graphite arc boards (2) are located the top of graphite plectane (1), and two graphite arc boards (2) form complete ring shape, the side fixedly connected with supporting ring (3) of graphite plectane (1), the bottom of supporting ring (3) is along circumference fixedly connected with a plurality of bracing pieces (4), be connected with equipment fixed establishment between graphite plectane (1) and two graphite arc boards (2);
the bottom of the graphite circular plate (1) is provided with a plurality of groups of discharge holes (5) along the circumferential direction, the bottom of the graphite circular plate (1) is connected with a movable stop mechanism, a screw rod (6) is fixedly connected to the top axle center of the graphite circular plate (1), an annular groove (7) is formed in the lower portion of the side face of the screw rod (6), a rotating ring (8) is rotationally connected to the annular groove (7), and a plurality of stirring plates (9) are fixedly connected to the side face of the rotating ring (8) along the circumferential direction;
the top threaded connection of lead screw (6) has go-between (10), the below of go-between (10) is provided with a plurality of sector plates (11) along circumference, sector plate (11) with dial the quantity of flitch (9) the same, just dial flitch (9) all are located adjacent two the below in space department between sector plate (11), sector plate (11) are located the top of graphite arc board (2), go-between (8) with all be connected with elasticity between sector plate (11) and give way the mechanism, sector plate (11) with be connected with synchronous rotation mechanism between dial flitch (9).
2. The graphite crucible for carbonization of lithium battery cathode materials according to claim 1, wherein the assembly fixing mechanism comprises a limiting ring (12) and two arc grooves (13), the limiting ring (12) is fixedly connected to the top of the graphite circular plate (1), the two arc grooves (13) are respectively formed in the bottoms of the two graphite arc plates (2), the limiting ring (12) is located in the two arc grooves (13), limiting grooves (14) are formed in the upper portions of two ends of one graphite arc plate (2), limiting strips (15) are fixedly connected to the upper portions of two ends of the other graphite arc plate (2), the limiting strips (15) can be respectively clamped into the corresponding limiting grooves (14), limiting blocks (16) are fixedly connected to the side faces of the two graphite arc plates (2), limiting bolts (17) are respectively arranged on the limiting blocks (16), two connecting holes (18) are formed in the supporting ring (3) along the circumferential direction, and the limiting bolts (17) are connected to the corresponding through holes (18).
3. The graphite crucible for carbonization of lithium battery anode materials according to claim 1, wherein the movable stop mechanism comprises a limiting pin (19), the limiting pin (19) is fixedly connected to the bottom axis of the graphite circular plate (1), a first movable ring (20) is rotatably connected to the limiting pin (19), a plurality of shielding strips (21) are fixedly connected to the side surface of the first movable ring (20) along the circumferential direction, the number of the shielding strips (21) is the same as the radial group number of the discharge holes (5), the shielding strips are positioned at the bottoms of a corresponding group of the discharge holes (5), a second movable ring (22) is fixedly connected to the other ends of the shielding strips (21) together, and a positioning mechanism is connected to the second movable ring (22).
4. The graphite crucible for carbonization of lithium battery anode material according to claim 3, wherein the positioning mechanism comprises a mounting plate (23) and two positioning rods (24), the mounting plate (23) is fixedly connected to the side surface of the supporting ring (3), the two positioning rods (24) are fixedly connected to the side surface of the second movable ring (22), positioning holes (25) are formed in one ends of the positioning rods (24), pull rings (26) are arranged at the tops of the mounting plate (23), inserting pins (27) are fixedly connected to the bottoms of the pull rings (26), one ends of the inserting pins (27) penetrate through the mounting plate (23) and extend to the lower portion of the mounting plate (23) and then are inserted into the corresponding positioning holes (25), blocking rings (28) are fixedly connected to the surfaces of the inserting pins (27), first springs (29) are sleeved on the inserting pins (27), and two ends of each first spring (29) are fixedly connected to the blocking rings (28) and the mounting plate (23).
5. The graphite crucible for carbonization of lithium battery negative electrode materials according to claim 1, wherein the elastic abdication mechanism comprises a plurality of fixing strips (30), the fixing strips (30) are fixedly connected to the side face of the connecting ring (10) along the circumferential direction, the fixing strips (30) are respectively located above the corresponding sector plates (11), two connecting pins (31) are respectively inserted in the fixing strips (30) in a sliding manner, the bottom ends of the connecting pins (31) are respectively fixedly connected to the tops of the corresponding sector plates (11), second springs (32) are respectively sleeved on the connecting pins (31), and two ends of each second spring (32) are respectively fixedly connected to the corresponding sector plates (11) and the corresponding fixing strips (30).
6. The graphite crucible for carbonization of lithium battery negative electrode material according to claim 5, wherein the synchronous rotating mechanism comprises a plurality of fixing rods (33), the plurality of fixing rods (33) are respectively and fixedly connected to the tops of the corresponding stirring plates (9), the top ends of the fixing rods (33) extend to the upper side of the fan-shaped plates (11) along the gaps between the two adjacent fan-shaped plates (11), the fixing rods (33) are respectively contacted with the side surfaces of the two adjacent fan-shaped plates (11), and the top ends of the plurality of fixing rods (33) are commonly and fixedly connected with rotating discs (34).
7. The graphite crucible for carbonization of lithium battery negative electrode material according to claim 6, wherein the bottom of the sector plate (11) is provided with a placing groove (35), the inside of the placing groove (35) is hinged with a scraping plate (36), and torsion springs (37) are fixedly installed at the hinged positions of the scraping plate (36).
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3131399A (en) * | 1998-11-23 | 2000-06-13 | Mawar Mslsydisn Limited | Improved apparatus and process for separating aluminium from a mixture of aluminium and aluminium dross |
| CN209431860U (en) * | 2019-01-16 | 2019-09-24 | 重庆迪普金属材料有限公司 | Mid-frequency melting furnace |
| CN217900471U (en) * | 2022-05-13 | 2022-11-25 | 永兴县长鑫铋业有限责任公司 | Electric furnace for smelting bismuth slag smelting waste |
| CN218166982U (en) * | 2022-09-23 | 2022-12-30 | 安徽安达新能源材料有限公司 | Graphite cathode material carbonizing apparatus |
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2023
- 2023-11-23 CN CN202311567238.8A patent/CN117287968B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3131399A (en) * | 1998-11-23 | 2000-06-13 | Mawar Mslsydisn Limited | Improved apparatus and process for separating aluminium from a mixture of aluminium and aluminium dross |
| CN209431860U (en) * | 2019-01-16 | 2019-09-24 | 重庆迪普金属材料有限公司 | Mid-frequency melting furnace |
| CN217900471U (en) * | 2022-05-13 | 2022-11-25 | 永兴县长鑫铋业有限责任公司 | Electric furnace for smelting bismuth slag smelting waste |
| CN218166982U (en) * | 2022-09-23 | 2022-12-30 | 安徽安达新能源材料有限公司 | Graphite cathode material carbonizing apparatus |
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