CN220489744U - Box graphitizing furnace and heating body thereof - Google Patents
Box graphitizing furnace and heating body thereof Download PDFInfo
- Publication number
- CN220489744U CN220489744U CN202321508562.8U CN202321508562U CN220489744U CN 220489744 U CN220489744 U CN 220489744U CN 202321508562 U CN202321508562 U CN 202321508562U CN 220489744 U CN220489744 U CN 220489744U
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- China
- Prior art keywords
- heating
- box
- lap joint
- joint portion
- graphitizing furnace
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Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 88
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 10
- 239000010439 graphite Substances 0.000 claims abstract description 10
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 239000010432 diamond Substances 0.000 claims description 4
- 238000004062 sedimentation Methods 0.000 abstract description 11
- 239000010406 cathode material Substances 0.000 abstract description 8
- 238000005087 graphitization Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 4
- 239000007773 negative electrode material Substances 0.000 description 5
- 239000010405 anode material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Furnace Details (AREA)
Abstract
The utility model discloses a box-type graphitizing furnace and a heating body thereof, comprising: a plurality of graphite heating strips and a plurality of fixing supports; wherein, the fixed support is vertically arranged, and a C-shaped groove for supporting and fixing the heating strip is arranged at the top of the fixed support; the plurality of fixed supports are sequentially arranged at intervals along the horizontal direction; the heating strips are fixed in the C-shaped grooves of the fixing supports in a one-to-one correspondence manner, are positioned on the same straight line, and are connected with each other in a conductive contact manner. The utility model can ensure that the heating strip does not generate uneven sedimentation along with the sedimentation of the cathode material in the heating process, thereby ensuring the stability of a heating field, being beneficial to improving the graphitization effect of the cathode material of the whole furnace, being beneficial to avoiding the local overhigh temperature caused by the uneven sedimentation of the heating strip and further being beneficial to avoiding the occurrence of furnace spraying accidents.
Description
Technical Field
The utility model relates to the technical field of graphitizing furnaces for negative electrode materials, in particular to a box-type graphitizing furnace and a heating body thereof.
Background
The graphitization process is a process of fully utilizing resistance heat to heat the carbonaceous material to 2300-3000 ℃ so as to convert the carbon with an amorphous disordered layer structure into an ordered graphite crystal structure. The furnace type graphitizing furnace for the current graphitizing process of the cathode material mainly comprises 4 types of Acheson graphitizing furnace, internal heat tandem graphitizing furnace, box graphitizing furnace, continuous graphitizing furnace and the like. Wherein, the box graphitizing furnace comprises a grid box furnace and an internal heating box furnace.
In the internal heating type box furnace in the prior art, a negative electrode material is generally filled in a box body surrounded by a carbon plate or a graphite plate, and a strip-shaped heating body consisting of a plurality of heating strips is directly arranged in the negative electrode material. The resistance wire formed by the heating element and the negative electrode material can generate high temperature after being electrified, so that the purpose of graphitizing the negative electrode material is achieved. However, in the graphitization heating process, since the anode material can generate a large amount of volatile gas, the anode material contracts, the gas volatilizes to raise the gas pressure in the box body, the anode material is settled under the actions, graphite heat bodies can generate uneven settlement along with the settlement of materials, uneven resistance distribution is caused, current can flow from a place with low resistance, a bias current phenomenon occurs, the graphitization effect of the anode material of the whole furnace is affected due to the fact that the local temperature is too high, and in addition, the occurrence of furnace spraying accidents is even possibly caused due to the fact that the local temperature is too high and the gas pressure in the box body is raised.
Disclosure of Invention
In order to solve the technical problems in the background technology, the utility model provides a box-type graphitizing furnace and a heating body thereof.
The utility model provides a heating element of a box-type graphitizing furnace, which comprises: a plurality of graphite heating strips and a plurality of fixing supports; wherein, the fixed support is vertically arranged, and a C-shaped groove for supporting and fixing the heating strip is arranged at the top of the fixed support; the plurality of fixed supports are sequentially arranged at intervals along the horizontal direction; the heating strips are fixed in the C-shaped grooves of the fixing supports in a one-to-one correspondence manner, are positioned on the same straight line, and are connected with each other in a conductive contact manner.
Preferably, the heating strip is provided with a first end and a second end which are opposite, the first end is provided with a first lap joint part, the second end is provided with a second lap joint part matched with the first lap joint part, and two adjacent heating strips are lapped through the first lap joint part and the second lap joint part.
Preferably, the first overlap is a first inclined surface, and the second overlap is a second inclined surface matching the first overlap.
Preferably, the first overlap portion is a first arcuate surface, and the second overlap portion is a second arcuate surface that matches the first overlap surface.
Preferably, the first overlap is a protrusion and the second overlap is a recess matching the first overlap.
Preferably, the contact area between the first overlap portion and the second overlap portion is larger than the cross-sectional area of the heat generating strip.
Preferably, the cross section of the heat generating strip is polygonal.
Preferably, the cross section of the heating strip is in a shape of a Chinese zither, a diamond or a square, and the cross section of the C-shaped groove is in a V shape.
The utility model also provides a box-type graphitizing furnace which comprises a plurality of heating bodies according to any one of the above.
According to the box-type graphitizing furnace and the heating body thereof, the fixed supports are sequentially arranged at the bottom of the graphitizing furnace at intervals along the horizontal direction, the heating strips are fixed in the C-shaped grooves of the fixed supports in a one-to-one correspondence manner, and any two adjacent heating strips are connected in a conductive contact manner, so that the heating strips do not generate uneven sedimentation along with sedimentation of the cathode material in the heating process, stability of a heating field is ensured, graphitizing effect of the cathode material of the whole furnace is improved, local overhigh temperature caused by uneven sedimentation of the heating strips is avoided, and further, the occurrence of furnace spraying accidents is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a heat generating strip according to an embodiment of the present utility model.
FIG. 2 is a schematic diagram showing a structure of a heating element according to an embodiment of the present utility model.
Fig. 3 is a schematic structural view of a heating element according to another embodiment of the present utility model.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 and 2, the heating element of the box-type graphitizing furnace according to the present utility model comprises: a plurality of graphite heating strips 1 and a plurality of fixed supports 2;
wherein, the fixed support 2 is vertically arranged, and a C-shaped groove for supporting and fixing the heating strip 1 is arranged at the top of the fixed support 2;
the plurality of fixed supports 2 are sequentially arranged at intervals along the horizontal direction;
the heating strips 1 are fixed in the C-shaped grooves of the fixing supports 2 in a one-to-one correspondence manner, the heating strips 1 are positioned on the same straight line, and any two adjacent heating strips 1 are connected in a conductive contact manner.
In the concrete implementation of the utility model, the fixed supports 2 are sequentially arranged at intervals at the bottom of the graphitization furnace along the horizontal direction, the heating strips 1 are correspondingly fixed in the C-shaped grooves of the fixed supports 2 one by one, and any two adjacent heating strips 1 are connected in a conductive contact manner, so that the heating strips 1 do not generate uneven sedimentation along with sedimentation of the cathode material in the heating process, thereby ensuring the stability of a heating field, being beneficial to improving the graphitization effect of the cathode material of the whole furnace, avoiding the local overhigh temperature caused by the uneven sedimentation of the heating strips 1, and further being beneficial to avoiding the occurrence of a furnace spraying accident.
For the conductive contact connection between two adjacent heat generating strips 1, in this embodiment, the heat generating strips 1 have opposite first and second ends, the first end is provided with a first lap joint 11, the second end is provided with a second lap joint matched with the first lap joint 11, and the two adjacent heat generating strips 1 are lap-jointed by the first lap joint 11 and the second lap joint.
In one embodiment, the first overlap 11 is a first bevel and the second overlap is a second bevel that mates with the first overlap.
When the heating furnace is particularly used, inclined planes are designed at the two ends of the heating body, so that the contact stability of each longitudinal heating body group in the furnace is ensured. Because the expansion coefficient of graphite is 10/c1.6, even the displacement of the graphite is relatively fixed when the temperature reaches 3100 ℃, when the heating element is heated and expanded, the inclined plane lap joint can ensure that the heating element only slightly moves up and down when being heated, the whole left and right displacement does not occur, the uneven sedimentation of the heating element in the heating process can be further avoided, the problem that the heating element cannot be released and damaged due to the heating expansion stress of the graphite is further avoided, and the stable heating of the heating element is effectively ensured.
In another specific embodiment, the first overlapping portion 11 is a first arc surface, and the second overlapping portion is a second arc surface matching the first overlapping surface.
In yet another specific embodiment, the first overlap 11 is a protrusion and the second overlap is a recess that mates with the first overlap 11.
In the present embodiment, the contact area between the first lap portion 11 and the second lap portion is larger than the cross-sectional area of the heat generating strip 1. So set up, can guarantee that the electric current passes through steadily.
In one embodiment, the heat-generating strip 1 has a polygonal cross section.
In a further embodiment, the cross section of the heating strip 1 is in the shape of a zither, a diamond or a square, and the cross section of the C-shaped groove is in the shape of a V.
In the concrete implementation, the heating element with the cross section of a zither shape, a diamond shape or a square shape is placed in the C-shaped groove with the cross section of a V shape, the edge angle of the heating element is perpendicular to the ground, and the resistance of the cathode material in sedimentation in the heating process can be reduced.
In another specific embodiment, the heat-generating strip 1 is circular in cross section.
The utility model also provides a box-type graphitizing furnace which comprises a plurality of heating bodies according to any one of the above.
In this embodiment, since the box-type graphitizing furnace includes the heating element described in any one of the above examples, the entire advantageous effects of the heating element are not described in detail herein.
Referring to fig. 3, in order to improve uniformity of a heating field in the box-type graphitizing furnace, a plurality of heating elements are arranged in a plurality of layers and rows in the present embodiment.
In order to make the fixing support be arranged in multiple layers, an avoiding groove for avoiding the fixing heating strip 1 is formed in the bottom of the fixing support 2, and the fixing support 2 is fixed on the fixing support 2 of the adjacent lower-layer heating body.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (9)
1. A heating element of a box-type graphitizing furnace, comprising: a plurality of graphite heating strips (1) and a plurality of fixed supports (2); the fixed support (2) is vertically arranged, and a C-shaped groove for supporting and fixing the heating strip (1) is formed in the top of the fixed support (2); the plurality of fixed supports (2) are sequentially arranged at intervals along the horizontal direction; the heating strips (1) are fixed in the C-shaped grooves of the fixing supports (2) in a one-to-one correspondence mode, the heating strips (1) are positioned on the same straight line, and any two adjacent heating strips (1) are connected in a conductive contact mode.
2. The heating element of a box-type graphitizing furnace according to claim 1, characterized in that the heating strip (1) has opposite first and second ends, the first end is provided with a first lap joint portion (11), the second end is provided with a second lap joint portion matched with the first lap joint portion (11), and adjacent two heating strips (1) are lapped by the first lap joint portion (11) and the second lap joint portion.
3. The heating element of the box-type graphitizing furnace according to claim 2, wherein the first lap joint portion (11) is a first inclined surface, and the second lap joint surface is a second inclined surface matched with the first lap joint surface.
4. The heating element of the box-type graphitizing furnace according to claim 2, wherein the first overlap portion (11) is a first arc surface, and the second overlap portion is a second arc surface matched with the first overlap surface.
5. The heating element of the box-type graphitizing furnace according to claim 2, wherein the first lap joint portion (11) is a protrusion, and the second lap joint portion is a groove matched with the first lap joint portion (11).
6. The heating element of the box-type graphitizing furnace according to claim 2, wherein a contact area between the first lap joint portion (11) and the second lap joint portion is larger than a cross-sectional area of the heat generating strip (1).
7. The heating element of a box-type graphitizing furnace according to claim 1, wherein the cross section of the heating strip (1) is polygonal.
8. The heating element of box graphitizing furnace according to claim 7, characterized in that the cross section of the heating strip (1) is of a zither shape, a diamond shape or a square shape, and the cross section of the C-shaped groove is of a V-shape matching the cross section of the heating strip (1).
9. A box-type graphitizing furnace comprising a plurality of heating bodies according to any one of the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321508562.8U CN220489744U (en) | 2023-06-14 | 2023-06-14 | Box graphitizing furnace and heating body thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321508562.8U CN220489744U (en) | 2023-06-14 | 2023-06-14 | Box graphitizing furnace and heating body thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220489744U true CN220489744U (en) | 2024-02-13 |
Family
ID=89831884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321508562.8U Active CN220489744U (en) | 2023-06-14 | 2023-06-14 | Box graphitizing furnace and heating body thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220489744U (en) |
-
2023
- 2023-06-14 CN CN202321508562.8U patent/CN220489744U/en active Active
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