CN210237133U - Continuous graphitizing furnace for lithium battery negative electrode material - Google Patents
Continuous graphitizing furnace for lithium battery negative electrode material Download PDFInfo
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- CN210237133U CN210237133U CN201921113497.2U CN201921113497U CN210237133U CN 210237133 U CN210237133 U CN 210237133U CN 201921113497 U CN201921113497 U CN 201921113497U CN 210237133 U CN210237133 U CN 210237133U
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model provides a continuous graphitizing furnace of lithium cell negative pole material, include: the horizontal furnace body is internally provided with a preheating section, a heating section and a cooling section in sequence; the feeding mechanism and the discharging mechanism are respectively arranged at the feeding end and the discharging end of the horizontal furnace body; the heating mechanism is arranged at the heating section of the horizontal furnace body and used for heating, and the cooling mechanism is arranged at the cooling section of the horizontal furnace body and used for cooling. The utility model discloses a continuous graphitizing furnace of lithium cell negative pole material has solved the problem that traditional graphitizing furnace intermittent type formula production brought, has realized graphitizing furnace continuous production, and the increasing heat efficiency improves the heat utilization, reduces the heat and runs off, improves production efficiency.
Description
Technical Field
The utility model relates to a graphite electrode processing technology field, in particular to graphitizing furnace of horizontal continuity of production.
Background
The traditional graphitizing furnace is produced in an intermittent mode, and is influenced by external factors in the process from charging to discharging. The intermittent graphitizing furnace has different product quality in each discharging; the sealing performance of the furnace is poor, and most of volatile components are difficult to be industrially utilized; the heat efficiency is low, the heat is mainly lost through heat transfer, convection, radiation and other modes, and the waste heat is difficult to recycle; the temperature in the furnace is not uniform, and the quality of the same product is not uniform.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of the intermittent production of the graphitizing furnace in the prior art, the utility model provides a continuous graphitizing furnace for lithium battery cathode materials.
The technical scheme of the utility model is realized like this:
a continuous graphitizing furnace for a lithium battery negative electrode material comprises: the horizontal furnace body is internally provided with a preheating section, a heating section and a cooling section in sequence; the feeding mechanism and the discharging mechanism are respectively arranged at the feeding end and the discharging end of the horizontal furnace body; the heating mechanism is arranged at the heating section of the horizontal furnace body and used for heating, and the cooling mechanism is arranged at the cooling section of the horizontal furnace body and used for cooling.
Preferably, the horizontal furnace body comprises two horizontal furnace bodies arranged side by side, and the preheating section, the heating section and the cooling section of the two horizontal furnace bodies are correspondingly consistent; a feeding mechanism and a discharging mechanism are respectively arranged at the feeding end and the discharging end of each horizontal furnace body; the heating mechanism heats the heating sections of the two horizontal furnace bodies simultaneously.
Preferably, the heating mechanism comprises conductive rings, a transformer, furnace end electrodes and water-cooled cables, wherein a plurality of seamlessly arranged conductive rings are arranged on the inner walls of the two horizontal furnace bodies, two ends of the heating section of the outer wall of each horizontal furnace body are respectively provided with one group of furnace end electrodes, and four furnace end electrodes of each group of furnace end electrodes are uniformly distributed on the outer wall of the horizontal furnace body and extend into the horizontal furnace body to be tightly propped against the conductive rings; the negative pole of the transformer is electrically connected with a group of furnace end electrodes of one horizontal furnace body, the other group of furnace end electrodes is connected with a group of furnace end electrodes of the other horizontal furnace body in series through a water-cooled cable, and the other group of furnace end electrodes of the other horizontal furnace body is electrically connected with the positive pole of the transformer.
Preferably, the cooling mechanism comprises a nitrogen source and conveying pipelines, the cooling sections of the two horizontal furnace bodies are provided with nitrogen inlets, each nitrogen inlet is communicated with the conveying pipelines, and each conveying pipeline is connected with the nitrogen source.
Preferably, the feeding end and the discharging end of the horizontal furnace body are provided with sealing baffles, the sealing baffle at the feeding end is provided with a feeding hole, and the sealing baffle at the discharging end is provided with a discharging hole;
the feeding mechanism comprises a feeding bracket and a feeding oil cylinder, the feeding bracket is transversely arranged at a feeding port of the horizontal furnace body, the feeding oil cylinder is arranged at the outer end of the feeding bracket, and the driving end of the feeding oil cylinder faces the feeding bracket;
discharge mechanism includes ejection of compact bracket and ejection of compact hydro-cylinder, and the ejection of compact bracket transversely sets up in the discharge gate department of horizontal formula furnace body, and ejection of compact hydro-cylinder sets up in the outer end of ejection of compact bracket, and the drive end of ejection of compact hydro-cylinder is towards ejection of compact bracket.
Preferably, a cylinder reinforcing ring is uniformly arranged on the top half ring of each horizontal furnace body.
Preferably, any one of the horizontal furnace bodies comprises a steel structure shell, an insulating layer, a heat preservation layer, a filler area and a sheath ring, wherein the steel structure shell is of a cylindrical structure, and the insulating layer is arranged on the whole inner side wall of the steel structure shell; the insulating layer is arranged in the whole inner side of the insulating layer; the filler area is positioned on the inner side of the heat-insulating layer; the sheath ring is arranged on the inner side of the filler area and positioned on the outer side of the conductive ring, and the sheath ring forms a fully-closed structure; the bottom of the sheath ring is evenly provided with a plurality of sheath ring brackets which are positioned in the filling area.
Preferably, a furnace end electrode expansion fixing frame is arranged outside each group of furnace end electrodes, a belleville spring assembly is arranged at the outer end of each furnace end electrode, and the belleville spring assembly is connected with the furnace end electrode expansion fixing frame.
Preferably, the heating section and the cooling section of each horizontal furnace body are respectively provided with a through hole, a heat transmission pipe is connected between the through hole of the heating section and the through hole of the cooling section, and the heat transmission pipe is respectively connected with the two through holes in a sealing manner.
The utility model has the advantages that: the utility model discloses a continuous graphitizing furnace of lithium cell negative pole material has set gradually preheating section, heating section and cooling zone in the horizontal furnace body, combines feed mechanism, discharge mechanism, heating mechanism and cooling mechanism to realize the continuous production of graphitizing furnace, avoids energy consumption, output and efficiency and the quality scheduling problem that intermittent type formula production brought.
The horizontal furnace bodies comprise two furnace bodies, and the two horizontal furnace bodies run simultaneously, so that the production efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic external top view of a continuous graphitizing furnace for lithium battery negative electrode materials according to the present invention;
FIG. 2 is a view A-A of FIG. 1;
FIG. 3 is a view B-B of FIG. 1;
FIG. 4 is an enlarged view of FIG. 2 at C;
FIG. 5 is an enlarged view of FIG. 2 at D;
in the figure:
1. a horizontal furnace body; 2. a feeding mechanism; 3. a discharging mechanism; 4. a heating mechanism; 5. a cooling mechanism; 6. a cylinder reinforcing ring; 7. a furnace end electrode expansion fixing frame; 8. a belleville spring assembly; 11. a preheating section; 12. a heating section; 13. a cooling section; 14. a steel structure housing; 15. an insulating layer; 16. a heat-insulating layer; 17. a filler zone; 18. a ferrule; 19. a sheath ring holder; 41. a conductive ring; 42. a transformer; 43. a furnace end electrode; 44. a water-cooled cable.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example (b): as shown in fig. 1, the continuous graphitization furnace for the negative electrode material of the lithium battery comprises: the device comprises two horizontal furnace bodies 1, a feeding mechanism 2, a discharging mechanism 3, a heating mechanism 4 and a cooling mechanism 5, wherein a preheating section 11, a heating section 12 and a cooling section 13 are sequentially arranged in each horizontal furnace body 1, and the two horizontal furnace bodies 1 are correspondingly arranged side by side; the feeding end and the discharging end of each horizontal furnace body 1 are respectively provided with a feeding mechanism 2 and a discharging mechanism 3; heating mechanisms 4 are arranged at the heating sections of the two horizontal furnace bodies 1 for heating, and cooling mechanisms 5 are arranged at the cooling sections of the two horizontal furnace bodies for cooling. The heating mechanism heats the heating sections of the two horizontal furnace bodies simultaneously, so that energy consumption is saved, and efficiency is improved.
As shown in fig. 1 to 3, the heating mechanism 4 includes conductive rings 41, a transformer 42, furnace end electrodes 43 and a water-cooled cable 44, wherein a plurality of conductive rings 41 arranged seamlessly are disposed on the inner walls of the two horizontal furnace bodies 1, a group of furnace end electrodes 43 is disposed at two ends of the heating section of the outer wall of each horizontal furnace body 1, and four furnace end electrodes of each group of furnace end electrodes are uniformly distributed on the outer wall of the horizontal furnace body and extend into the horizontal furnace body to be tightly pressed against the conductive rings 41; the negative electrode of the transformer 42 is electrically connected to one group of burner electrodes of the lower horizontal furnace body 1, the other group of burner electrodes of the lower horizontal furnace body is connected in series to one group of burner electrodes of the upper horizontal furnace body through a water-cooled cable 44, and the other group of burner electrodes of the upper horizontal furnace body is electrically connected to the positive electrode of the transformer.
Two groups of furnace end electrodes of each horizontal furnace body are electrically connected through a conductive ring, and the two horizontal furnace bodies utilize a transformer. The negative electrode of the transformer is electrically connected with each furnace end electrode in a group of furnace end electrodes of the horizontal furnace body below the transformer; each furnace end electrode of the other group of furnace end electrodes of the upper horizontal furnace body is electrically connected with the positive electrode of the transformer.
The cooling mechanism 5 comprises a nitrogen source and conveying pipelines, the cooling sections of the two horizontal furnace bodies are provided with nitrogen inlets, each nitrogen inlet is communicated with the conveying pipelines, and each conveying pipeline is connected with the nitrogen source. The nitrogen enters a cooling section of the horizontal furnace body to be directly cooled. The cooling mechanism is simple and convenient to use.
As shown in fig. 1, the feed end and the discharge end of the horizontal furnace body 1 are provided with sealing baffles, the sealing baffle at the feed end is provided with a feed inlet, and the sealing baffle at the discharge end is provided with a discharge outlet; the feeding mechanism 2 comprises a feeding bracket and a feeding oil cylinder, the feeding bracket is transversely arranged at the feeding port of the horizontal furnace body, the feeding oil cylinder is arranged at the outer end of the feeding bracket, and the driving end of the feeding oil cylinder faces the feeding bracket; discharging mechanism 3 includes ejection of compact bracket and ejection of compact hydro-cylinder, and the ejection of compact bracket transversely sets up in the discharge gate department of horizontal formula furnace body, and the ejection of compact hydro-cylinder sets up in the outer end of ejection of compact bracket, and the drive end of ejection of compact hydro-cylinder is towards ejection of compact bracket. The sealing baffle is used for reducing heat dissipation.
As shown in figure 2, a cylinder reinforcing ring 6 is uniformly arranged on the top half ring of each horizontal furnace body 1 to prevent the horizontal furnace body from deforming. Any horizontal furnace body 1 comprises a steel structure shell 14, an insulating layer 15, a heat insulating layer 16, a filler area 17, a sheath ring 18 and a plurality of sheath ring brackets 19, wherein the steel structure shell is of a cylindrical structure, and the insulating layer 15 is arranged on the whole inner side wall of the steel structure shell; the insulating layer 16 is disposed within the entire inner side of the insulating layer; the filler region 17 is positioned on the inner side of the heat-insulating layer; the sheath ring 18 is arranged on the inner side of the filling area and positioned on the outer side of the conductive ring, and the sheath ring forms a fully-closed structure; the bottom of the sheath ring is evenly provided with a plurality of sheath ring brackets 19, and the sheath ring brackets 19 are positioned in the filling area. The filling materials in the heat-insulating layer and the filling material area are always positioned in the horizontal furnace body, so that the filling materials are prevented from being loaded and unloaded along with the input and output of the crucible, the filling and taking-out processes of the filling materials are reduced, the labor intensity and the working environment of workers are reduced, and the automatic production is realized.
As shown in fig. 4, a furnace end electrode expansion fixing frame 7 is arranged outside each group of furnace end electrodes 43, a belleville spring assembly 8 is arranged at the outer end of each furnace end electrode, and the belleville spring assembly 8 is connected with the furnace end electrode expansion fixing frame 7 and used for enabling each furnace end electrode to tightly push against the conductive ring, so that electric arcs generated at the gap position are avoided, and the furnace end electrodes and the conductive ring are prevented from being damaged.
Through holes are arranged at the heating section and the cooling section of each horizontal furnace body 1, a heat transmission pipe is connected between the through hole of the heating section and the through hole of the cooling section, and the heat transmission pipe is respectively connected with the two through holes in a sealing manner; the waste heat of the cooling section is utilized to preheat the materials in the preheating section, and the utilization efficiency of heat is improved.
The utility model discloses a working process: a section of crucible is placed on a feeding bracket, a feeding oil cylinder drives the section of crucible to be pushed into a corresponding horizontal furnace body, and a preheating section in the horizontal furnace body preheats the crucible at the part; continuously pushing the next section of crucible, continuously pushing the previous section of crucible forwards by the next section of crucible, and continuously pushing in the way; when the crucible pushed initially is pushed to the heating section, the crucible is directly heated by the heating mechanism, and is pushed to the cooling section and is directly cooled by the cooling mechanism, and the cooled crucible is pushed out of the discharge port to the discharge bracket. And the residual heat of the cooling section is sent to the preheating section, and the residual heat is utilized for preheating. When the horizontal furnace body is filled with the crucible, the feeding oil cylinder and the discharging oil cylinder tightly push the crucible in the horizontal furnace body.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a lithium cell negative electrode material continuous graphitization stove which characterized in that includes: the horizontal furnace body is internally provided with a preheating section, a heating section and a cooling section in sequence; the feeding mechanism and the discharging mechanism are respectively arranged at the feeding end and the discharging end of the horizontal furnace body; the heating mechanism is arranged at the heating section of the horizontal furnace body and used for heating, and the cooling mechanism is arranged at the cooling section of the horizontal furnace body and used for cooling.
2. The continuous graphitizing furnace for negative electrode materials of lithium batteries as claimed in claim 1, wherein the horizontal furnace body comprises two horizontal furnace bodies arranged side by side, and the preheating section, the heating section and the cooling section of the two horizontal furnace bodies are correspondingly consistent; a feeding mechanism and a discharging mechanism are respectively arranged at the feeding end and the discharging end of each horizontal furnace body; the heating mechanism heats the heating sections of the two horizontal furnace bodies simultaneously.
3. The continuous graphitizing furnace for negative electrode materials of lithium batteries as claimed in claim 2, wherein the heating mechanism comprises conductive rings, a transformer, furnace end electrodes and a water-cooled cable, the inner walls of the two horizontal furnace bodies are respectively provided with a plurality of seamlessly arranged conductive rings, two ends of the heating section of the outer wall of each horizontal furnace body are respectively provided with a group of furnace end electrodes, and four furnace end electrodes of each group of furnace end electrodes are uniformly distributed on the outer wall of the horizontal furnace body and extend into the horizontal furnace body to be tightly pressed against the conductive rings; the negative pole of the transformer is electrically connected with a group of furnace end electrodes of one horizontal furnace body, the other group of furnace end electrodes is connected with a group of furnace end electrodes of the other horizontal furnace body in series through a water-cooled cable, and the other group of furnace end electrodes of the other horizontal furnace body is electrically connected with the positive pole of the transformer.
4. The continuous graphitization furnace for the negative electrode material of the lithium battery as claimed in claim 2, wherein the cooling mechanism comprises a nitrogen gas source and conveying pipelines, the cooling sections of the two horizontal furnace bodies are provided with nitrogen gas inlets, each nitrogen gas inlet is communicated with a conveying pipeline, and each conveying pipeline is connected with the nitrogen gas source.
5. The continuous graphitizing furnace for negative electrode materials of lithium batteries as claimed in claim 2, wherein the feed end and the discharge end of the horizontal furnace body are provided with sealing baffles, the sealing baffle at the feed end is provided with a feed inlet, and the sealing baffle at the discharge end is provided with a discharge outlet;
the feeding mechanism comprises a feeding bracket and a feeding oil cylinder, the feeding bracket is transversely arranged at a feeding port of the horizontal furnace body, the feeding oil cylinder is arranged at the outer end of the feeding bracket, and the driving end of the feeding oil cylinder faces the feeding bracket;
discharge mechanism includes ejection of compact bracket and ejection of compact hydro-cylinder, and the ejection of compact bracket transversely sets up in the discharge gate department of horizontal formula furnace body, and ejection of compact hydro-cylinder sets up in the outer end of ejection of compact bracket, and the drive end of ejection of compact hydro-cylinder is towards ejection of compact bracket.
6. The continuous graphitizing furnace for negative electrode materials of lithium batteries as claimed in claim 2, wherein a cylinder reinforcing ring is uniformly arranged on the top half ring of each horizontal furnace body.
7. The continuous graphitization furnace for the negative electrode material of the lithium battery as claimed in claim 3, wherein any one of the horizontal furnace bodies comprises a steel structure shell, an insulating layer, a heat preservation layer, a filling area and a sheath ring, the steel structure shell is arranged to be of a cylindrical structure, and the insulating layer is arranged on the whole inner side wall of the steel structure shell; the insulating layer is arranged in the whole inner side of the insulating layer; the filler area is positioned on the inner side of the heat-insulating layer; the sheath ring is arranged on the inner side of the filler area and positioned on the outer side of the conductive ring, and the sheath ring forms a fully-closed structure; the bottom of the sheath ring is evenly provided with a plurality of sheath ring brackets which are positioned in the filling area.
8. The continuous graphitization furnace for negative electrode materials of lithium batteries as claimed in claim 3, wherein a furnace end electrode expansion fixing frame is arranged outside each group of furnace end electrodes, and a belleville spring assembly is arranged at the outer end of each furnace end electrode and is connected with the furnace end electrode expansion fixing frame.
9. The continuous graphitization furnace for the negative electrode material of the lithium battery as claimed in claim 3, wherein through holes are formed in the heating section and the cooling section of each horizontal furnace body, heat transmission pipes are connected between the through holes of the heating section and the through holes of the cooling section, and the heat transmission pipes are respectively connected with the two through holes in a sealing manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921113497.2U CN210237133U (en) | 2019-07-16 | 2019-07-16 | Continuous graphitizing furnace for lithium battery negative electrode material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921113497.2U CN210237133U (en) | 2019-07-16 | 2019-07-16 | Continuous graphitizing furnace for lithium battery negative electrode material |
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| CN210237133U true CN210237133U (en) | 2020-04-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573663A (en) * | 2020-06-24 | 2020-08-25 | 宁夏洪腾科技开发有限公司 | Continuous smelting device and smelting method for battery negative electrode material |
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2019
- 2019-07-16 CN CN201921113497.2U patent/CN210237133U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573663A (en) * | 2020-06-24 | 2020-08-25 | 宁夏洪腾科技开发有限公司 | Continuous smelting device and smelting method for battery negative electrode material |
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