CN113479873B - Continuous graphitization and high-temperature carbonization integrated furnace and working method thereof - Google Patents
Continuous graphitization and high-temperature carbonization integrated furnace and working method thereof Download PDFInfo
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- CN113479873B CN113479873B CN202110748023.0A CN202110748023A CN113479873B CN 113479873 B CN113479873 B CN 113479873B CN 202110748023 A CN202110748023 A CN 202110748023A CN 113479873 B CN113479873 B CN 113479873B
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- 238000003763 carbonization Methods 0.000 title claims abstract description 94
- 238000005087 graphitization Methods 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 105
- 239000005539 carbonized material Substances 0.000 claims abstract description 54
- 238000007599 discharging Methods 0.000 claims abstract description 45
- 238000004321 preservation Methods 0.000 claims abstract description 19
- 238000010000 carbonizing Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010924 continuous production Methods 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 229910002804 graphite Inorganic materials 0.000 description 9
- 239000010439 graphite Substances 0.000 description 9
- 229910021383 artificial graphite Inorganic materials 0.000 description 5
- 239000004020 conductor Substances 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000010406 cathode material Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000109 continuous material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
- C01B32/20—Graphite
- C01B32/205—Preparation
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- 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
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to a continuous graphitizing and high-temperature carbonizing integrated furnace and a working method thereof.A furnace body is coaxially provided with a columnar electrode, a tubular electrode and a high-temperature carbonizing furnace wall from inside to outside, wherein the columnar electrode is an anode electrode, and the tubular electrode is a cathode electrode; the annular space between the columnar electrode and the tubular electrode is a graphitized area; the annular space between the tubular electrode and the high-temperature carbonization furnace wall is a high-temperature carbonization zone; the bottom of the graphitization zone is connected with a graphitization material continuous discharging system through a heat preservation section, and the bottom of the high-temperature carbonization zone is connected with a high-temperature carbonization material continuous discharging system. According to the invention, graphitization and high-temperature carbonization processes are completed in the same furnace body, and the high-temperature carbonized material is heated to the high-temperature carbonization temperature by utilizing the heat overflowed in the graphitization process of the graphitized material, so that the high-temperature carbonization of the material is realized, and continuous production of graphitization and high-temperature carbonization is realized; not only reduces the production cost, but also realizes the full utilization of energy.
Description
Technical Field
The invention relates to the technical field of material carbonization and graphitization, in particular to an integrated furnace for realizing continuous graphitization and high-temperature carbonization of artificial graphite for a lithium ion battery cathode material and a working method thereof.
Background
The high-purity artificial graphite is widely used as a lithium battery negative electrode material, and at present, the preparation of the high-purity artificial graphite is mainly realized by adopting an Acheson furnace. The artificial graphite is prepared by using Acheson furnaces, the production period of each furnace needs about 40 days, and a large amount of resistance materials and insulating materials are needed, so that the thermal efficiency is only 15% -20%, and the comprehensive thermal efficiency is only about 15% due to other losses, so that the energy waste is serious, and the production cost is high.
The high-temperature carbonization is a new preparation method of the lithium ion battery cathode material, materials are required to be heated to about 1200 ℃ in the high-temperature carbonization process, and the method for preparing the lithium ion battery cathode material by high-temperature carbonization is widely applied at present. The graphitization and the high-temperature carbonization have a temperature difference of more than 1500 ℃, if the overflow heat of graphitization can be used for the high-temperature carbonization, the production cost of the artificial graphite material can be greatly reduced, the full utilization of energy is realized, and good market benefit and social benefit are achieved.
Disclosure of Invention
The invention provides a continuous graphitization and high-temperature carbonization integrated furnace and a working method thereof, which finish graphitization and high-temperature carbonization processes in the same furnace body, heat overflowed in the graphitization process of graphitized materials is utilized to heat the high-temperature carbonized materials to high-temperature carbonization temperature, high-temperature carbonization of the materials is realized, and continuous production of graphitization and high-temperature carbonization is realized; not only reduces the production cost, but also realizes the full utilization of energy.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
A continuous graphitization and high-temperature carbonization integrated furnace comprises a furnace body, a graphitized material continuous discharging system and a high-temperature carbonized material continuous discharging system; the furnace body is coaxially provided with a columnar electrode, a tubular electrode and a high-temperature carbonization furnace wall from inside to outside, the columnar electrode and the tubular electrode are respectively connected with an external power supply device, the columnar electrode is an anode electrode, and the tubular electrode is a cathode electrode; the annular space between the columnar electrode and the tubular electrode is a graphitized area; the annular space between the tubular electrode and the high-temperature carbonization furnace wall is a high-temperature carbonization zone; the top of the furnace body is provided with a graphitized material inlet above the corresponding graphitized region, and a high-temperature carbonized material inlet above the corresponding high-temperature carbonized region; the bottom of the graphitization zone is connected with a graphitization material continuous discharging system through a heat preservation section, and the bottom of the high-temperature carbonization zone is connected with a high-temperature carbonization material continuous discharging system.
The furnace top is provided with a volatile gas outlet.
The furnace top is provided with a temperature thermocouple, and the temperature measuring end of the temperature thermocouple extends into the graphitization area.
The outer side of the high-temperature carbonization furnace wall is sequentially provided with a heat preservation and insulation layer and a furnace outer wall.
The graphitized material continuous discharging system consists of a graphitized material discharging device, a graphitized material cooling device and a graphitized material outlet bin which are connected in sequence.
The high-temperature carbonized material continuous discharging system consists of a high-temperature carbonized material discharging device, a high-temperature carbonized material cooling device and a high-temperature carbonized material outlet bin which are connected in sequence.
And the outer side of the heat preservation section is provided with a heat preservation and insulation wall.
In the working method of the continuous graphitizing and high-temperature carbonizing integrated furnace, graphitized materials enter a graphitizing area and continuously move downwards, and high-temperature carbonized materials enter a high-temperature carbonizing area and continuously move downwards; heating graphitized materials to 3000-3200 ℃ by a heating device consisting of a columnar electrode and a tubular electrode; the external high-temperature carbonized material is heated to 1200-1500 ℃ by the overflow heat in the graphitization process; the graphitized material is discharged through a graphitized material continuous discharging system, and the high-temperature carbonized material after high-temperature carbonization is discharged through a high-temperature carbonized material continuous discharging system.
Compared with the prior art, the invention has the beneficial effects that:
1) The continuous graphitization process is adopted, the materials are preheated, heated, kept warm and cooled in the continuous downward moving process, so that continuous production is realized, the process is effectively controlled, the full utilization of energy is realized, and the thermal efficiency is more than 80%;
2) The resistor material and the heat preservation material are not required, and the cost of auxiliary materials is greatly reduced;
3) Heating the material in the high-temperature carbonization material downward-moving channel outside the graphitized material downward-moving channel to a high-temperature carbonization temperature by utilizing the heat overflowed in the continuous graphitization process, so that the material is carbonized at a high temperature; the high-temperature carbonization process is also a continuous heating, discharging and discharging process, namely, the continuous high-temperature carbonization process is realized;
4) After the heat of graphitization process overflows, the heat is absorbed and blocked by the outer high-temperature carbonized material, so that the furnace body is effectively protected from being damaged by high temperature while the material is carbonized at high temperature by using the overflow heat, the service life of the furnace body is prolonged, and the safety operation of the furnace body is ensured.
Drawings
FIG. 1 is a schematic structural view of a continuous graphitization and high temperature carbonization integrated furnace according to the invention.
In the figure: 1. graphitized material inlet 2, high temperature carbonized material inlet 3, columnar electrode 4, tubular electrode 5, high temperature carbonized furnace wall 6, thermal insulation layer 7, volatile gas outlet 8, furnace outer wall 9, power supply 10, thermal insulation section 11, graphitized material discharge device 12, graphitized material cooling device 13, graphitized material outlet bin 14, high temperature carbonized material discharge device 15, high temperature carbonized material cooling device 16, high temperature carbonized material outlet bin 17, temperature thermocouple I, graphitized region II, high temperature carbonized region II
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
As shown in FIG. 1, the continuous graphitizing and high-temperature carbonizing integrated furnace comprises a furnace body, a graphitizing material continuous discharging system and a high-temperature carbonizing material continuous discharging system; the furnace body is coaxially provided with a columnar electrode 3, a tubular electrode 4 and a high-temperature carbonization furnace wall 5 from inside to outside, the columnar electrode 3 and the tubular electrode 4 are respectively connected with an external power supply device 9, the columnar electrode 3 is an anode electrode, and the tubular electrode 4 is a cathode electrode; the annular space between the columnar electrode 3 and the tubular electrode 4 is a graphitization area I; the annular space between the tubular electrode 4 and the high-temperature carbonization furnace wall 5 is a high-temperature carbonization zone II; the top of the furnace body is provided with a graphitized material inlet 1 above the corresponding graphitized region I, and a high-temperature carbonized material inlet 2 above the corresponding high-temperature carbonized region II; the bottom of the graphitization zone I is connected with a graphitization material continuous discharging system through a heat preservation section 10, and the bottom of the high-temperature carbonization zone II is connected with a high-temperature carbonization material continuous discharging system.
The stove top is provided with a volatile gas outlet 7.
The furnace top is provided with a temperature thermocouple 17, and the temperature measuring end of the temperature thermocouple 17 extends into the graphitization area I.
The outer side of the high-temperature carbonization furnace wall 5 is sequentially provided with a heat preservation and insulation layer 6 and a furnace outer wall 8.
The graphitized material continuous discharging system consists of a graphitized material discharging device 11, a graphitized material cooling device 12 and a graphitized material outlet bin 13 which are connected in sequence.
The high-temperature carbonized material continuous discharging system consists of a high-temperature carbonized material discharging device 14, a high-temperature carbonized material cooling device 15 and a high-temperature carbonized material outlet bin 16 which are connected in sequence.
The outer side of the heat preservation section 10 is provided with a heat preservation and insulation wall.
In the working method of the continuous graphitizing and high-temperature carbonizing integrated furnace, graphitized materials enter a graphitizing area I and continuously move downwards, and high-temperature carbonized materials enter a high-temperature carbonizing area II and continuously move downwards; heating graphitized materials to 3000-3200 ℃ by a heating device consisting of a columnar electrode 3 and a tubular electrode 4; the external high-temperature carbonized material is heated to 1200-1500 ℃ by the overflow heat in the graphitization process; the graphitized material is discharged through a graphitized material continuous discharging system, and the high-temperature carbonized material after high-temperature carbonization is discharged through a high-temperature carbonized material continuous discharging system.
The graphitizing and high-temperature carbonization integrated furnace is a continuous and efficient device for simultaneously graphitizing and high-temperature carbonization, and the graphitizing and high-temperature carbonization processes are completed in the same furnace body. The furnace body is divided into a graphitization area I and a high-temperature carbonization area II, the graphitization area I is positioned in the middle of the furnace body and consists of a columnar electrode 3 and a tubular electrode 4, an annular space between the columnar electrode 3 and the tubular electrode 4 is the graphitization area I, and graphitized materials are heated in the graphitization area and graphitized. The periphery of the tubular electrode 4 is provided with a high-temperature carbonization zone II, and the high-temperature carbonization zone II is an annular space formed between the tubular electrode 4 and the high-temperature carbonization outer furnace wall 5; when the graphitizing and high-temperature carbonization integrated furnace works, the heat overflowed in the graphitizing process is utilized to heat the high-temperature carbonized material to the high-temperature carbonization temperature.
The following examples are given by way of illustration of detailed embodiments and specific procedures based on the technical scheme of the present invention, but the scope of the present invention is not limited to the following examples.
[ Example ]
As shown in fig. 1, in the embodiment, the continuous graphitization and high-temperature carbonization integrated furnace comprises a furnace body, a graphitization material continuous discharging system and a high-temperature carbonization material continuous discharging system.
The upper part of the top of the furnace body is provided with a sealing cover body. The top of the sealing cover body is provided with a graphitized material inlet 1 and a high-temperature carbonized material inlet 2; graphitized materials and high-temperature carbonized materials enter the corresponding graphitized region I and the high-temperature carbonized region II from the corresponding inlets; the top of the sealed cover body is also provided with a volatile gas outlet 7, and volatile gas exhausted in the graphitization process and the high-temperature carbonization process is exhausted from the volatile gas outlet 7 to the furnace body and enters a subsequent treatment device for environmental protection treatment after condensation.
In the embodiment, the columnar electrode 3 adopts a cylindrical graphite rod, the tubular electrode 4 adopts a graphite circular tube, the graphite rod is positioned at the center of the graphite circular tube, and the graphite circular tube and the tubular electrode form a graphitization area I together; the bottom of the graphitization zone I is provided with a heat preservation section 10, and graphitized materials after the graphitization process are subjected to the heat preservation process enter a graphitization material cooling device 12 through a graphitization material discharging device 11 and are discharged into a graphitization material outlet bin 13 after being cooled. In this embodiment, the graphitized material discharging device 11 is a star discharger made of a graphite material with a temperature resistance of 2000 ℃, has sealing performance and high temperature resistance, has a controllable discharge amount, and can block gas to prevent external gas from flowing into the furnace body. The graphite cooling device 12 adopts a structure of a water cooling jacket to cool the graphitized material, the water cooling jacket is arranged at the outer side of the graphitized material channel, and the cooling water quantity is controllable.
The periphery of the graphitization area I is a high-temperature carbonization area II, the high-temperature carbonization area II is an annular space formed by a graphite circular tube and the high-temperature carbonization furnace wall 5 together, and high-temperature carbonized materials which complete the high-temperature carbonization process enter a high-temperature carbonized material cooling device 15 from a high-temperature carbonized material discharging device 14 and are discharged into a high-temperature carbonized material outlet bin 16 after being cooled. In this embodiment, the high-temperature carbonized material discharging device 14 is a star discharger made of heat-resistant alloy material, has a temperature resistance of 900 ℃, has sealing property and controllable discharging amount, and can block gas to prevent external gas from flowing into the furnace body. The high-temperature carbonized material cooling device 15 adopts a water-cooled jacket structure to cool the high-temperature carbonized material, the water-cooled jacket is arranged at the outer side of the high-temperature carbonized material channel, and the cooling water quantity is controllable.
The outer side of the high-temperature carbonization furnace wall 5 is provided with a heat-preservation heat-insulation layer which is made of a composite material with the high temperature resistance of 1800 ℃ and the insulating property.
The top of the sealed cover body is also provided with a temperature thermocouple 17 for measuring the temperature of the graphitization region I. And the upper parts of the graphitization area I and the high-temperature carbonization area II are respectively provided with a material level measuring device.
The graphitizing material inlet 1 is used for distributing materials into the graphitizing area I, the high-temperature carbonized material inlet 2 is used for distributing materials into the high-temperature carbonized area II, the columnar electrode 3 is connected with the anode of the external power supply device 9, the tubular electrode 4 is connected with the cathode of the external power supply device 9, and after the graphitizing material is electrified, the graphitizing area I is heated to raise the temperature, so that the graphitizing material is heated to the temperature required by graphitizing. Then, the continuous graphitized material discharging system is started, graphitized material enters the graphitized material cooling device 12 through the heat preservation section 10 and the graphitized material discharging device 11, and cooled graphitized material enters the graphitized material outlet bin 13.
And the heat overflowed after the temperature of the graphitization zone I rises is conducted to the high-temperature carbonized material of the high-temperature carbonization zone II through the outer wall of the tubular electrode 4 to carry out high-temperature carbonization on the high-temperature carbonized material. The graphitization temperature of the graphitization material is 3000 ℃ to 3200 ℃, and the high-temperature carbonization temperature of the high-temperature carbonization material is only 1200 ℃ to 1500 ℃, namely, the temperature difference between the graphitization area I and the high-temperature carbonization area II is more than 1500 ℃, so that the overflow heat of the graphitization area I is utilized to satisfy the temperature requirement of high-temperature carbonization. The high-temperature carbonized material after the high-temperature carbonization process enters a high-temperature carbonized material cooling device 15 through a high-temperature carbonized material discharging device 14, is cooled and then is discharged into a high-temperature carbonized material outlet bin 16.
Volatile gas generated in the heating process of graphitized materials and volatile gas generated in the heating process of high-temperature carbonized materials are converged and then discharged through a volatile gas outlet 7, and the volatile gas is condensed and then enters a subsequent treatment device for environmental protection treatment.
Before the temperature of the graphitization zone I rises, firstly, distributing materials into the graphitization zone I, and filling the materials to the required height according to the process requirements. In general, the materials to be graphitized are mostly carbon materials, are nonconductive or have very low conductivity, so that the lower section of the graphitization area between the columnar electrode 3 and the tubular electrode 4 needs to be filled with graphite conductive materials with proper height in the initial temperature rising stage. After the anode and the cathode are electrified, the graphite conductive material is used for conducting current to generate resistance heat, under the initial temperature rising state, the current flows between the conductive materials filled between the 2 electrodes, the graphitized materials positioned at the corresponding positions are heated under the action of the resistance heat, and the temperature is continuously increased to 3000-3200 ℃ at most. The graphitized material at the upper part is heated up from bottom to top according to a certain temperature gradient due to the temperature conduction effect. The conductivity of the graphitized material between the anode and the cathode also changes along with the temperature rise, the conductivity of the graphitized material also forms a conductive gradient gradually decreasing from bottom to top, and the conductivity of the graphitized material is optimal when the graphitized material reaches the graphitization temperature. After the initial temperature rising process, after stable temperature distribution, current and resistance gradient are formed between the anode and the cathode, continuous material distribution and discharging are started, otherwise, the resistivity between the 2 electrodes is further reduced, and the current is continuously increased, so that over-temperature and over-current are generated.
By controlling the discharge speed of graphitized material, the resistance gradient formed between the 2 electrodes due to the temperature rise can be kept constant, and the current can be kept constant. In a normal working state, the graphitization zone I forms three heating sections, namely, the lower section (within 600mm from the bottom) of the graphitization zone is a conductor heating section, graphitization materials in the section are heated up faster, the resistance is low, the graphitization zone I is in a full-conduction state, and the temperature can be raised to 3000-3200 ℃; the middle section of the graphitization zone (the lower section of the graphitization zone is upwards within 600 mm) is a semiconductor heating section, the temperature of the section is about 3000-2000 ℃, the graphitization degree of graphitization materials is not high, most of graphitization materials are in a semiconductor state, and the conductivity is poor. The upper section of the graphitization zone (the area above the middle section of the graphitization zone) is a preheating section, and the temperature of the section is mainly raised by the heat uploaded by the conductor temperature raising section and the semiconductor temperature raising section. The graphitized materials are continuously heated and continuously discharged, so that the constant temperature rising parameters in the furnace are maintained, and further, the continuous graphitization production is realized.
The high-temperature carbonized material enters a high-temperature carbonization zone II after being distributed, along with the temperature rise of a graphitization zone I, the overflowed heat is transferred to the high-temperature carbonization zone II through the outer wall of the tubular electrode, so that the high-temperature carbonized material is heated, the high-temperature carbonization temperature is generally 1200-1500 ℃, the overflowed heat is enough to meet the high-temperature carbonization requirement, and when the high-temperature carbonized material is heated to meet the technological requirement, continuous distribution and continuous discharge are started, so that the high-temperature carbonization process and the graphitization process are synchronously carried out.
In the embodiment, a heat preservation and insulation layer is arranged on the outer side of the high-temperature carbonization furnace wall of the continuous graphitization and high-temperature carbonization integrated furnace. Because the periphery of the graphitization area I is provided with the high-temperature carbonization area II, the heat overflowed in the graphitization process is firstly absorbed and blocked by the high-temperature carbonized materials, the heat transferred to the high-temperature carbonized furnace wall 5 and the heat preservation and insulation layer 6 is greatly reduced, the temperature generally does not exceed 1200-1500 ℃, and only proper heat preservation and insulation materials are needed to be selected, so that the safety of the furnace body is ensured, the maintenance cost is reduced, and the service life of the whole furnace is greatly prolonged.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. The continuous graphitizing and high-temperature carbonizing integrated furnace is characterized by comprising a furnace body, a graphitizing material continuous discharging system and a high-temperature carbonizing material continuous discharging system; the furnace body is coaxially provided with a columnar electrode, a tubular electrode and a high-temperature carbonization furnace wall from inside to outside, the columnar electrode and the tubular electrode are respectively connected with an external power supply device, the columnar electrode is an anode electrode, and the tubular electrode is a cathode electrode; the annular space between the columnar electrode and the tubular electrode is a graphitized area; the annular space between the tubular electrode and the high-temperature carbonization furnace wall is a high-temperature carbonization zone; the top of the furnace body is provided with a graphitized material inlet above the corresponding graphitized region, and a high-temperature carbonized material inlet above the corresponding high-temperature carbonized region; the bottom of the graphitization zone is connected with a graphitization material continuous discharging system through a heat preservation section, and the bottom of the high-temperature carbonization zone is connected with a high-temperature carbonization material continuous discharging system.
2. The continuous graphitization and high temperature carbonization integrated furnace according to claim 1, wherein a volatile gas outlet is arranged at the top of the furnace body.
3. The continuous graphitizing and high temperature carbonization integrated furnace according to claim 1, wherein a temperature thermocouple is arranged at the top of the furnace body, and the temperature measuring end of the temperature thermocouple extends into the graphitizing area.
4. The continuous graphitization and high temperature carbonization integrated furnace according to claim 1, wherein a heat preservation and insulation layer and a furnace outer wall are sequentially arranged on the outer side of the high temperature carbonization furnace wall.
5. The continuous graphitization and high temperature carbonization integrated furnace according to claim 1, wherein the graphitization material continuous discharging system comprises a graphitization material discharging device, a graphitization material cooling device and a graphitization material outlet bin which are sequentially connected.
6. The continuous graphitization and high-temperature carbonization integrated furnace according to claim 1, wherein the high-temperature carbonization material continuous discharging system comprises a high-temperature carbonization material discharging device, a high-temperature carbonization material cooling device and a high-temperature carbonization material outlet bin which are sequentially connected.
7. The continuous graphitization and high temperature carbonization integrated furnace according to claim 1, wherein a heat-insulating wall is arranged on the outer side of the heat-insulating section.
8. The method for operating a continuous graphitization and high temperature carbonization integrated furnace according to any one of claims 1 to 7, wherein in the furnace body, graphitized materials enter a graphitization zone and continuously move downwards, and high temperature carbonized materials enter a high temperature carbonization zone and continuously move downwards; heating graphitized materials to 3000-3200 ℃ by a heating device consisting of a columnar electrode and a tubular electrode; the external high-temperature carbonized material is heated to 1200-1500 ℃ by the overflow heat in the graphitization process; the graphitized material is discharged through a graphitized material continuous discharging system, and the high-temperature carbonized material after high-temperature carbonization is discharged through a high-temperature carbonized material continuous discharging system.
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| WO2024178629A1 (en) * | 2023-02-28 | 2024-09-06 | 宁德烯铖科技有限公司 | Graphitization furnace, control method therefor, and manufacturing apparatus for battery |
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| CN203493462U (en) * | 2013-04-26 | 2014-03-26 | 广东四会互感器厂有限公司 | Multifunctional electric oven with electric heating nanofilm |
| CN203699918U (en) * | 2013-10-22 | 2014-07-09 | 凯尔凯德科技(上海)有限公司 | High temperature furnace for continuous carbonization and graphitization |
| CN203771990U (en) * | 2013-12-02 | 2014-08-13 | 凯尔凯德新材料科技泰州有限公司 | Carbonization and graphitization integrated high temperature furnace |
| KR101554912B1 (en) * | 2014-08-13 | 2015-09-22 | 에스케이씨 주식회사 | Method for preparing graphite and furnace therefor |
| CN204224476U (en) * | 2014-09-26 | 2015-03-25 | 辽宁奥亿达新材料有限公司 | Asphalt base carbon fiber non-woven mat heat-preservation cylinder |
| CN105696113B (en) * | 2015-12-04 | 2018-06-26 | 江西大有科技有限公司 | A kind of devices and methods therefor using nonequilibrium plasma manufacture carbon fiber |
| CN206720744U (en) * | 2016-10-10 | 2017-12-08 | 元氏县槐阳碳素有限公司 | Energy-efficient acheson graphite heating unit and heating system |
| CN206886940U (en) * | 2017-06-09 | 2018-01-16 | 河南华泰环保设备有限公司 | Sewage sludge harmlessness handles complete set of equipments |
| US11766718B2 (en) * | 2019-09-12 | 2023-09-26 | Desktop Metal, Inc. | Compound furnace |
| CN211770319U (en) * | 2019-12-30 | 2020-10-27 | 深圳市深瑞墨烯科技有限公司 | Graphene film preparation high-temperature furnace |
| CN212712765U (en) * | 2020-07-14 | 2021-03-16 | 内蒙古金益新材料有限责任公司 | High-yield graphitizing furnace |
-
2021
- 2021-07-01 CN CN202110748023.0A patent/CN113479873B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215946775U (en) * | 2021-07-01 | 2022-03-04 | 海城申合科技有限公司 | Continuous graphitization and high-temperature carbonization integrated furnace |
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