CN116659238B - Box-type graphitizing furnace and production method - Google Patents
Box-type graphitizing furnace and production method Download PDFInfo
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- CN116659238B CN116659238B CN202310934082.6A CN202310934082A CN116659238B CN 116659238 B CN116659238 B CN 116659238B CN 202310934082 A CN202310934082 A CN 202310934082A CN 116659238 B CN116659238 B CN 116659238B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 192
- 239000002131 composite material Substances 0.000 claims abstract description 73
- 238000004321 preservation Methods 0.000 claims abstract description 62
- 238000005266 casting Methods 0.000 claims abstract description 60
- 230000005540 biological transmission Effects 0.000 claims description 58
- 238000005087 graphitization Methods 0.000 claims description 30
- 230000007246 mechanism Effects 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 239000012774 insulation material Substances 0.000 claims description 9
- 230000017525 heat dissipation Effects 0.000 abstract description 9
- 239000011810 insulating material Substances 0.000 abstract description 9
- 239000011162 core material Substances 0.000 description 40
- 239000002918 waste heat Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- 230000005012 migration Effects 0.000 description 3
- 238000013508 migration Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- F27B17/00—Furnaces of a kind not covered by any preceding group
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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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- 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
Abstract
The invention relates to a box-type graphitizing furnace and a production method, wherein the box-type graphitizing furnace comprises a box-type furnace core structure and a furnace wall structure, the box-type furnace core structure is arranged in the furnace wall structure, and heat preservation materials are filled between the box-type furnace core structure and the furnace wall structure; the box-type furnace core structure comprises an upper box plate, a longitudinal side box plate, a transverse side box plate and a lower box plate, wherein the longitudinal section of the upper box plate is in an inverted V shape, the horizontal included angle a of the upper box plate is at least larger than the repose angle b5 degrees of the insulating material, the furnace wall structure comprises a short wall and a composite casting material plate, the longitudinal section of the short wall is U-shaped, the heights of the two sides of the short wall enable the highest point of the insulating material after natural sliding to be between the midpoint of the vertical direction of the transverse side box plate and the lowest point, the composite casting material plate is movably arranged on the two sides of the short wall, the lower part of the composite casting material plate can be closely attached to the outer wall of the short wall, and the top end of the composite casting material plate is higher than the upper box plate. The upper box plate in the box-type furnace core structure is in an inverted V shape, and the composite castable plate in the furnace wall structure is movably arranged, so that the box-type graphitizing furnace is high in heat dissipation speed and can release pressure at any time.
Description
Technical Field
The invention relates to the technical field of graphitization furnace production, in particular to a box-type graphitization furnace and a production method.
Background
The negative electrode material is a core component of the new energy power battery, and the capacity of the negative electrode material is increased in a crossing way along with the vigorous development of new energy automobiles. Graphitization is the most important link in the production of negative electrode materials, and is a process of carrying out high-temperature modification on the negative electrode materials at 3000 ℃, and graphitization production is finished by adopting an Acheson graphitization furnace, an internal heating serial graphitization furnace and a box graphitization furnace in the current market.
The internal heating serial graphitization furnace has good product quality and high safety, but has low furnace loading quantity and highest energy consumption per ton of products, and is generally used under the working condition of higher requirement on the product quality, and the overall market occupancy is not high; the Acheson graphitizing furnace has higher safety, can reach higher level in the aspects of product quality, productivity and the like, and has the largest market occupation ratio; the box type graphitizing furnace is a new furnace type developed in recent years, and fig. 1 is a schematic structural diagram of the existing box type graphitizing furnace, compared with the Acheson graphitizing furnace and the internal heating serial graphitizing furnace, the box type graphitizing furnace does not need a crucible, raw materials are directly put into a box body for graphitizing treatment, and the furnace core space is fully utilized, so that the furnace loading quantity is greatly improved, and the box type graphitizing furnace has remarkable advantages.
However, because the furnace core of the Acheson graphitizing furnace and the internal heating serial graphitizing furnace are provided with a large amount of bulk resistor materials besides a crucible filled with materials, the furnace core of the box graphitizing furnace is internally provided with materials, so that combustible volatile matters in the furnace core are obviously increased, partial overflow of the volatile matters is possibly caused by sealing of a furnace core box plate, pressure is generated in the furnace core, and when the furnace core materials are heated unevenly in the graphitizing process, the partial overheat gasification sublimation is possibly generated, larger internal pressure is generated, the explosion furnace is caused due to the excessive internal pressure in the furnace, and the current box graphitizing furnace is not provided with a structure capable of rapidly releasing pressure, once the explosion furnace occurs, the furnace body and a workshop are damaged, the materials are lost, and the life safety of workers is also threatened.
In the discharging stage of the box-type graphitizing furnace, the heat-insulating material above the upper box plate of the furnace core is taken out through the material sucking crown block, and then the upper box plate of the furnace core is opened to suck the graphitized material out of the furnace, but as the furnace core of the existing box-type graphitizing furnace is surrounded by the heat-insulating material, the heat-insulating material has weak heat-dissipation capacity, the upper limit of the temperature of the material sucking crown block is 300-500 ℃, the graphitizing furnace needs to be cooled for more than one month to enable the temperature in the furnace to be reduced to the applicable temperature of the material sucking crown block, and the long-time cooling period enables the production period of the box-type graphitizing furnace to be greatly prolonged.
Disclosure of Invention
In view of the defects and shortcomings of the prior art, the invention provides the box-type graphitizing furnace and the production method, and the upper box plate in the box-type furnace core structure is in an inverted V shape, and the composite casting material plate in the furnace wall structure is movably arranged, so that the box-type graphitizing furnace has high heat dissipation speed, can release pressure at any time, and solves the problems of long cooling period and no rapid pressure release structure in the prior art.
In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:
a box-type graphitizing furnace comprises a box-type furnace core structure and a furnace wall structure, wherein the box-type furnace core structure is arranged in the furnace wall structure, and heat preservation materials are filled between the box-type furnace core structure and the furnace wall structure;
the box-type furnace core structure comprises an upper box plate, a longitudinal side box plate, a transverse side box plate and a lower box plate, wherein the longitudinal section of the upper box plate is in an inverted V shape, the horizontal included angle a of the upper box plate is at least larger than the repose angle b5 DEG of the insulating material, the furnace wall structure comprises a short wall and a composite casting material plate, the longitudinal section of the short wall is U-shaped, the height of the two sides of the short wall enables the highest point of the insulating material after naturally sliding down to be between the midpoint of the vertical direction of the transverse side box plate and the lowest point, the composite casting material plate is movably arranged on the two sides of the short wall, the lower part of the composite casting material plate can be closely attached to the outer wall of the short wall, and the top end of the composite casting material plate is higher than the upper box plate. The box-type furnace core structure further comprises a plurality of inner box plates which are vertically arranged and transversely arranged, and the height of each inner box plate is matched with that of each upper box plate.
The upper box plate in the box type furnace core structure is in an inverted V shape, and the composite castable plate in the furnace wall structure is movably arranged, so that the pressure in the furnace can be quickly relieved by moving the composite castable plate at any time in the graphitization process of the box type graphitization furnace, the safety level of the furnace pressure is ensured, the safe production of the box type graphitization furnace is ensured, the cooling stage has high heat dissipation speed, the cooling period is shortened, and the production efficiency is improved;
the heights of the two sides of the short wall enable the highest point of the heat preservation material after the heat preservation material naturally slides down to be between the middle point and the lowest point of the vertical direction of the transverse side box plate, the upper layer of the heat preservation material slides down to enable the upper part of the furnace core to rapidly dissipate heat, the lower layer of the heat preservation material is still in the furnace, the circulation amount of the heat preservation material is reduced as much as possible, and the production cost is reduced;
the horizontal included angle a of the upper box plate is at least larger than the included angle b5 degrees of the heat preservation material, so that the heat preservation material above the upper box plate is ensured to slide completely, and the cooling of the corresponding part of the upper box plate is not affected.
Further, the furnace wall structure further comprises a pressure sensing element and a plurality of pressure transmission mechanisms, each pressure transmission mechanism comprises a pressure transmission shaft and a pressure transmission shaft outer cavity, the outer wall of the composite casting material plate is connected with the pressure transmission shaft, the pressure transmission shaft is horizontally and slidingly connected with the pressure transmission shaft outer cavity, one end, far away from the box-type furnace core structure, of the pressure transmission shaft outer cavity is connected with the pressure sensing element, and the pressure transmission shaft slides in the pressure transmission shaft outer cavity to drive the composite casting material plate to horizontally move.
Through setting up pressure drive mechanism, when pressure sensing element detects that the stove internal pressure exceeds the allowable pressure, make the outside horizontal migration of pressure drive axle drive compound pouring material board to guarantee that the stove internal pressure is in safe value, thereby guarantee the safety in production of box graphitization stove.
Further, the upper and lower ends of the composite casting material plate are respectively connected with the pressure transmission shafts of the upper and lower groups of pressure transmission mechanisms, and the two groups of pressure transmission mechanisms synchronously move.
The upper and lower ends of the composite casting material plate are respectively connected with the pressure transmission shafts of the upper and lower groups of pressure transmission mechanisms, and the connection part of the pressure transmission shafts is far away from the lateral middle area corresponding to the box-type furnace core structure, so that the influence of high temperature of the heat preservation material on the service life and the supporting strength of the pressure transmission shafts in the graphitizing process is reduced.
Further, the furnace wall structure comprises a concrete foundation, wherein the concrete foundation is arranged below the furnace wall structure, a material receiving channel is arranged in the concrete foundation, and the material receiving channel is arranged below the movable path of the composite casting material plates at two sides. By arranging the material receiving channel in the concrete foundation, the sliding heat preservation material falls into the material receiving channel, and is easy to recycle.
Further, the device also comprises a material receiving trolley, wherein the opening of the top end of the material receiving trolley is wider than the movable path of the composite casting material plate, a track is arranged at the bottom of the material receiving channel and extends to the outside of the box-type graphitizing furnace, and the material receiving trolley enters or leaves the material receiving channel along the track.
Through setting up the material dolly that connects, make the insulation material of landing easily retrieve further, can be through connecing the material dolly to collect the insulation material and carry to the stove outside, be convenient for later to the high temperature waste heat retrieval and utilization of insulation material.
Further, the concrete foundation is provided with a leakage-proof edge, the bottom end of the leakage-proof edge is lower than the upper edge of the material receiving trolley, and the leakage-proof edge is positioned on the inner side of the upper edge of the material receiving trolley when the material receiving trolley enters the material receiving channel.
Through setting up the leak protection along, follow the clearance hourglass to the track of concrete foundation and receiving material dolly when preventing the heat preservation material landing, hinder to receive the removal of material dolly.
Further, the concrete foundation structure further comprises an external support wall, wherein the external support wall is arranged on the outer side of the composite casting material plate and is connected with the top end of the concrete foundation, and the top end of the external support wall is provided with a dustproof gas collecting cover. Through setting up dustproof gas collecting channel to the harmful gas collection that produces in the graphitization process to have dustproof function, ensure construction environment.
The box-type graphitizing furnace production method adopts a box-type graphitizing furnace and comprises the following steps:
s01: moving the composite casting material plate to be closely attached to the outer wall of the short wall;
s02: filling heat preservation materials into the box-type furnace core structure and filling heat preservation materials between the box-type furnace core structure and the furnace wall structure;
s03: electrifying to carry out graphitization production, when the pressure value exceeds a safety value in the graphitization process, moving the composite casting material plate to release pressure, and when the pressure value is restored to the safety value, moving the composite casting material plate to be closely attached to the outer wall of the short wall;
s04: powering off after graphitization is completed;
s05: moving the composite casting material plate, and enabling the heat preservation material to flow out from between the composite casting material plate and the outer wall of the short wall;
s06: and opening the upper box plate to discharge after cooling is finished.
The production method has the advantages that the heat dissipation speed is high, the cooling period is shortened, the production efficiency is improved, the pressure can be relieved at any time, and the production safety is ensured.
Further, the step S05: the material receiving trolley enters the lower part of the movable path of the composite casting material plate, the composite casting material plate is moved, the heat preservation material flows out of the space between the composite casting material plate and the outer wall of the low wall into the material receiving trolley, and the material receiving trolley conveys away the flowing heat preservation material. Through the step, the sliding heat preservation materials are easy to recycle, and the collected heat preservation materials can be conveyed to the outside of the furnace through the material receiving trolley, so that the high-temperature waste heat of the heat preservation materials can be recycled conveniently.
The beneficial effects of the invention are as follows:
according to the box-type graphitizing furnace, the upper box plate in the box-type furnace core structure is in an inverted V shape, and the composite castable plate in the furnace wall structure is movably arranged, so that the composite castable plate can be moved to rapidly release pressure at any time in the graphitizing process of the box-type graphitizing furnace, the safety value of the pressure in the furnace is ensured, the safe production of the box-type graphitizing furnace is ensured, the cooling stage is high in heat dissipation speed, the cooling period is shortened, and the production efficiency is improved;
the heights of the two sides of the short wall enable the highest point of the heat preservation material after the heat preservation material naturally slides down to be between the middle point and the lowest point of the vertical direction of the transverse side box plate, the upper layer of the heat preservation material slides down to enable the upper part of the furnace core to rapidly dissipate heat, the lower layer of the heat preservation material is still in the furnace, the circulation amount of the heat preservation material is reduced as much as possible, and the production cost is reduced;
the horizontal included angle a of the upper box plate is at least larger than the repose angle b5 degrees of the heat preservation material, so that the heat preservation material above the upper box plate is ensured to slide completely, and the cooling of the corresponding part of the upper box plate is not affected.
Through setting up pressure drive mechanism, when pressure sensing element detects that the stove internal pressure exceeds the allowable pressure, make the outside horizontal migration of pressure drive axle drive compound pouring material board to guarantee that the stove internal pressure is in the allowable range all the time, thereby guarantee the safety in production of box graphitization stove. The upper and lower ends of the composite casting material plate are respectively connected with the pressure transmission shafts of the upper and lower groups of pressure transmission mechanisms, and the connection part of the pressure transmission shafts is far away from the lateral middle area corresponding to the box-type furnace core structure, so that the influence of high temperature of the heat preservation material on the service life and the supporting strength of the pressure transmission shafts in the graphitizing process is reduced.
By arranging the material receiving channel in the concrete foundation, the sliding heat preservation material falls into the material receiving channel, and is easy to recycle. Through setting up the material dolly that connects, make the insulation material of landing easily retrieve further, can be through connecing the material dolly to collect the insulation material and carry to the stove outside, be convenient for later to the high temperature waste heat retrieval and utilization of insulation material. Through setting up the leak protection along, follow the clearance hourglass to the track of concrete foundation and receiving material dolly when preventing the heat preservation material landing, hinder to receive the removal of material dolly.
According to the production method of the box-type graphitizing furnace, the box-type graphitizing furnace and the production method of the steps S01-S06 are adopted, so that the heat dissipation speed is high, the cooling period is shortened, the production efficiency is improved, the pressure can be relieved at any time, and the production safety is ensured.
The heat preservation material is picked up by adopting the material-receiving trolley in the S05, so that the slipped heat preservation material is easy to recycle, and the collected heat preservation material can be conveyed out of the furnace through the material-receiving trolley, so that the high-temperature waste heat of the heat preservation material can be recycled conveniently.
Drawings
FIG. 1 is a longitudinal cross-sectional view of an existing box-type graphitizing furnace;
FIG. 2 is a longitudinal cross-sectional view of a box-type graphitizing furnace according to the present invention;
FIG. 3 is a longitudinal cross-sectional view of a box-type graphitizing furnace of the present invention when cooled.
In the figure: 1. an existing furnace body outer wall; 2. a box loading plate; 3. a lateral side box plate; 4. an inner box plate; 5. a lower box plate; 6. furnace core materials; 7. heat preservation material; 8. dwarfing walls; 9. a composite castable plate; 10. a pressure transmission shaft; 11. an outer cavity of the pressure transmission shaft; 12. an external support wall; 13. a dust-proof gas-collecting hood; 14. a concrete foundation; 141. a material receiving channel; 142. a leakage prevention edge; 15. a receiving trolley; 16. a track.
Detailed Description
The invention will be better explained by the following detailed description of the embodiments with reference to the drawings. Wherein references herein to "upper", "lower", etc. are made to the orientation of fig. 2. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 1 is a schematic structural view of an existing box-type graphitizing furnace, and shows an existing furnace body outer wall 1.
As shown in fig. 2-3, the embodiment of the invention provides a box-type graphitizing furnace, which comprises a box-type furnace core structure and a furnace wall structure, wherein the box-type furnace core structure is arranged in the furnace wall structure, and a heat preservation material 7 is filled between the box-type furnace core structure and the furnace wall structure;
the box-type furnace core structure comprises an upper box plate 2, a longitudinal side box plate, a transverse side box plate 3 and a lower box plate 5, wherein the longitudinal section of the upper box plate 2 is in an inverted V shape, the horizontal included angle a of the upper box plate 2 is at least larger than the repose angle b5 DEG of the insulating material 7, the furnace wall structure comprises a short wall 8 and a composite casting material plate 9, the longitudinal section of the short wall 8 is U-shaped, the height of the two sides of the short wall 8 enables the highest point of the insulating material 7 after naturally sliding down to be between the midpoint of the vertical direction of the transverse side box plate 3 and the lowest point, the composite casting material plate 9 is movably arranged on the two sides of the short wall 8, the lower part of the composite casting material plate 9 can be closely attached to the outer wall of the short wall 8, and the top end of the composite casting material plate 9 is higher than the upper box plate 2. The inside of the box-type furnace core structure is also provided with an inner box plate 4.
The upper box plate 2 in the box type furnace core structure is in an inverted V shape, and the composite castable plate 9 in the furnace wall structure is movably arranged, so that the composite castable plate 9 can be moved to rapidly release pressure at any time in the graphitization process of the box type graphitization furnace, the pressure value in the furnace is ensured to be at a safe value, the safe production of the box type graphitization furnace is ensured, the cooling stage has high heat dissipation speed, the cooling period is shortened, and the production efficiency is improved;
the heights of the two sides of the short wall 8 enable the highest point of the heat preservation material 7 after natural sliding to be between the middle point and the lowest point of the vertical direction of the transverse side box plate 3, the upper layer of the heat preservation material 7 slides down to enable the upper part of the furnace core to rapidly dissipate heat, and the lower layer is still in the furnace, so that the circulation quantity of the heat preservation material 7 is reduced as much as possible, and the production cost is reduced;
through the horizontal included angle a of the upper box plate 2 at least being larger than the repose angle b5 degrees of the heat preservation material 7, the heat preservation material 7 above the upper box plate 2 is ensured to slide completely, and the cooling of the corresponding part of the upper box plate 2 is not affected.
Specifically, the furnace wall structure further comprises a pressure sensing element and a plurality of pressure transmission mechanisms, each pressure transmission mechanism comprises a pressure transmission shaft 10 and a pressure transmission shaft outer cavity 11, the outer wall of the composite casting material plate 9 is connected with the pressure transmission shaft 10, specifically in threaded connection, the pressure transmission shaft 10 is connected with the pressure transmission shaft outer cavity 11 in a horizontal sliding mode, one end, far away from the box-type furnace core structure, of the pressure transmission shaft outer cavity 11 is connected with the pressure sensing element, and the pressure transmission shaft 10 slides in the pressure transmission shaft outer cavity 11 to drive the composite casting material plate 9 to move horizontally. The pressure transmission mechanism is longitudinally arranged along the box-type graphitizing furnace.
Through setting up pressure transmission mechanism, when pressure sensing element detects that the stove internal pressure exceeds allowable pressure, make the outside horizontal migration of pressure transmission shaft 10 drive compound pouring material board 9, when serious superpressure in the stove, compound pouring material board 9 opens fast through pressure transmission mechanism, realizes the pressure release in the twinkling of an eye, makes the stove internal pressure in allowable range to guarantee the safety in production of box graphitization stove.
Specifically, the upper and lower ends of the composite casting material plate 9 are respectively connected with pressure transmission shafts 10 of the upper and lower groups of pressure transmission mechanisms, and the two groups of pressure transmission mechanisms synchronously move.
The upper end and the lower end of the composite castable plate 9 are respectively connected with the pressure transmission shafts 10 of the upper pressure transmission mechanism and the lower pressure transmission mechanism, and the connection part of the pressure transmission shafts 10 is far away from the side middle area corresponding to the box-type furnace core structure, so that the influence of the high temperature of the heat preservation material 7 on the service life and the supporting strength of the pressure transmission shafts in the graphitization process is reduced.
Specifically, the furnace wall structure comprises a furnace wall structure, and is characterized by further comprising a concrete foundation 14, wherein the concrete foundation 14 is arranged below the furnace wall structure, a material receiving channel 141 is arranged in the concrete foundation 14, and the material receiving channel 141 is arranged below the movable path of the composite casting material plates 9 at two sides. By arranging the material receiving channel 141 in the concrete foundation 14, the thermal insulation material 7 which slides down falls into the material receiving channel 141, and is easy to recycle.
More specifically, the device also comprises a receiving trolley 15, the top end opening of the receiving trolley 15 is wider than the movable path of the composite casting material plate 9, a track 16 is arranged at the bottom of the receiving channel 141, the track 16 extends to the outside of the box-type graphitization furnace, and the receiving trolley 15 enters or leaves the receiving channel 141 along the track 16.
Through setting up the material dolly 15 that connects, make the heat preservation material 7 of landing easily retrieve further, can be through receiving material dolly 15 to collect heat preservation material 7 and carry to the stove outside, be convenient for later to heat preservation material 7's high temperature waste heat retrieval and utilization.
More specifically, the concrete foundation 14 is provided with a leakage preventing edge 142, the bottom end of the leakage preventing edge 142 is lower than the upper edge of the receiving trolley 15, and the leakage preventing edge 142 is positioned inside the upper edge of the receiving trolley 15 when the receiving trolley 15 enters the receiving channel 141.
By providing the leakage-proof edge 142, the heat preservation material 7 is prevented from leaking to the track 16 from the gap between the concrete foundation 14 and the material receiving trolley 15 when sliding down, and the material receiving trolley 15 is prevented from moving.
Specifically, the concrete foundation structure further comprises an outer support wall 12, wherein the outer support wall 12 is arranged on the outer side of the composite casting material plate 9 and is connected with the top end of the concrete foundation 14, and a dust-proof gas-collecting hood 13 is arranged on the top end of the outer support wall 12. Through setting up dustproof gas-collecting channel 13 to the harmful gas collection that produces in the graphitization process to have dustproof function, ensure construction environment.
The working process of the box-type graphitizing furnace comprises the following steps:
firstly, the composite castable plate 9 is moved to be closely attached to the outer wall of the short wall 8, furnace charging operations such as a furnace core material 6, a heat preservation material 7 and the like are completed, a dustproof gas collecting hood 13 is installed, then, the power-on is started to enter a production state, after the power-on is finished, firstly, the material receiving trolley 15 is moved to the lower part of the movable path of the composite castable plate 9, the composite castable plate 9 is moved to be far away from a box-type furnace core structure, the heat preservation material 7 slides into the material receiving trolley 15, after the sliding is completed, the material receiving trolley 15 conveys the high-temperature heat preservation material 7 out of the furnace for recycling high-temperature waste heat, the material in the box-type furnace core structure enters a natural cooling stage, after the material is cooled to a target temperature, the material absorbing operation is started, and the furnace is discharged.
The box-type graphitizing furnace production method adopts a box-type graphitizing furnace and comprises the following steps:
s01: moving the composite casting material plate 9 to be closely attached to the outer wall of the short wall 8;
s02: the box furnace core structure is filled with heat preservation materials 7, and the heat preservation materials 7 are filled between the box furnace core structure and the furnace wall structure;
s03: electrifying to carry out graphitization production, when the pressure value exceeds a safety value in the graphitization process, moving the composite casting material plate 9 to release pressure, and when the pressure value is restored to the safety value, moving the composite casting material plate to be closely attached to the outer wall of the short wall 8;
s04: powering off after graphitization is completed;
s05: moving the composite casting material plate 9, and enabling the heat preservation material 7 to flow out from between the composite casting material plate 9 and the outer wall of the short wall 8;
s06: and opening the upper box plate 2 to discharge after cooling is finished.
The production method has the advantages that the heat dissipation speed is high, the cooling period is shortened, the production efficiency is improved, the pressure can be relieved at any time, and the production safety is ensured.
Further, the step S05: the material receiving trolley 15 enters the lower part of the movable path of the composite casting material plate 9, the composite casting material plate 9 is moved, the heat preservation material 7 flows out of the space between the composite casting material plate 9 and the outer wall of the low wall 8 into the material receiving trolley 15, and the material receiving trolley 15 conveys away the flowing heat preservation material 7. Through the step, the sliding heat preservation material 7 is easy to recycle, and the collected heat preservation material 7 can be conveyed out of the furnace through the material receiving trolley 15, so that high-temperature waste heat of the heat preservation material 7 can be recycled conveniently.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the invention.
Claims (8)
1. The box-type graphitizing furnace is characterized by comprising a box-type furnace core structure and a furnace wall structure, wherein the box-type furnace core structure is arranged in the furnace wall structure, and a heat preservation material (7) is filled between the box-type furnace core structure and the furnace wall structure;
the box-type furnace core structure comprises an upper box plate (2), a longitudinal side box plate, a transverse side box plate (3) and a lower box plate (5), wherein the longitudinal section of the upper box plate (2) is in an inverted V shape, the horizontal included angle a of the upper box plate (2) is at least larger than the repose angle b5 of the insulation material (7), the furnace wall structure comprises a short wall (8) and a composite casting material plate (9), the longitudinal section of the short wall (8) is U-shaped, the height of the two sides of the short wall (8) enables the highest point of the insulation material (7) after naturally sliding down to be between the midpoint of the vertical direction of the transverse side box plate (3) and the lowest point, the composite casting material plate (9) is movably arranged on the two sides of the short wall (8), the lower part of the composite casting material plate (9) can be closely attached to the outer wall of the short wall (8), and the top end of the composite casting material plate (9) is higher than the upper box plate (2);
the furnace wall structure further comprises a pressure sensing element and a plurality of pressure transmission mechanisms, each pressure transmission mechanism comprises a pressure transmission shaft (10) and a pressure transmission shaft outer cavity (11), the outer wall of the composite casting material plate (9) is connected with the pressure transmission shaft (10), the pressure transmission shaft (10) is connected with the pressure transmission shaft outer cavities (11) in a horizontal sliding mode, one end, far away from the box-type furnace core structure, of each pressure transmission shaft outer cavity (11) is connected with the pressure sensing element, and the pressure transmission shaft (10) slides in the pressure transmission shaft outer cavities (11) to drive the composite casting material plate (9) to horizontally move.
2. A box graphitizing furnace as claimed in claim 1, wherein: the upper and lower ends of the composite casting material plate (9) are respectively connected with pressure transmission shafts (10) of the upper and lower groups of pressure transmission mechanisms, and the two groups of pressure transmission mechanisms synchronously move.
3. A box graphitizing furnace as claimed in claim 1, wherein: the furnace wall structure is characterized by further comprising a concrete foundation (14), wherein the concrete foundation (14) is arranged below the furnace wall structure, a material receiving channel (141) is arranged in the concrete foundation (14), and the material receiving channel (141) is arranged below the movable path of the composite casting material plates (9) at two sides.
4. A box graphitizing furnace as claimed in claim 3 wherein: the device is characterized by further comprising a receiving trolley (15), wherein the top end opening of the receiving trolley (15) is wider than the movable path of the composite casting material plate (9), a track (16) is arranged at the bottom of the receiving channel (141), the track (16) extends to the outside of the box-type graphitizing furnace, and the receiving trolley (15) enters or leaves the receiving channel (141) along the track (16).
5. A box graphitizing furnace as claimed in claim 4 wherein: the concrete foundation (14) is provided with a leakage-proof edge (142), the bottom end of the leakage-proof edge (142) is lower than the upper edge of the material receiving trolley (15), and the leakage-proof edge (142) is positioned on the inner side of the upper edge of the material receiving trolley (15) when the material receiving trolley (15) enters the material receiving channel (141).
6. A box graphitizing furnace as claimed in claim 3 wherein: the concrete pouring structure is characterized by further comprising an external supporting wall (12), wherein the external supporting wall (12) is arranged on the outer side of the composite pouring material plate (9) and is connected with the top end of the concrete foundation (14), and a dustproof gas-collecting hood (13) is arranged on the top end of the external supporting wall (12).
7. A method for producing a box-type graphitizing furnace, using the box-type graphitizing furnace according to any one of claims 1 to 6, characterized by comprising the steps of:
s01: moving the composite casting material plate (9) to be closely attached to the outer wall of the short wall (8);
s02: filling heat preservation materials (7) between the box-type furnace core structure and the furnace wall structure;
s03: electrifying to carry out graphitization production, when the pressure value exceeds a safety value in the graphitization process, moving the composite casting material plate (9) to release pressure, and when the pressure value is restored to the safety value, moving the composite casting material plate to be closely attached to the outer wall of the short wall (8);
s04: powering off after graphitization is completed;
s05: moving the composite casting material plate (9), and enabling the heat preservation material (7) to flow out from between the composite casting material plate (9) and the outer wall of the low wall (8);
s06: and opening the upper box plate (2) to discharge after cooling is finished.
8. The method for producing a box-type graphitizing furnace according to claim 7, wherein: step S05, the material receiving trolley (15) enters the lower part of the movable path of the composite casting material plate (9), the composite casting material plate (9) is moved, the heat preservation material (7) flows out of the space between the composite casting material plate (9) and the outer wall of the short wall (8) into the material receiving trolley (15), and the material receiving trolley (15) conveys away the flowing heat preservation material (7).
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| CN202310934082.6A CN116659238B (en) | 2023-07-28 | 2023-07-28 | Box-type graphitizing furnace and production method |
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| CN202310934082.6A CN116659238B (en) | 2023-07-28 | 2023-07-28 | Box-type graphitizing furnace and production method |
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| CN116659238B true CN116659238B (en) | 2023-11-28 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08301615A (en) * | 1995-04-28 | 1996-11-19 | Mitsubishi Chem Corp | Production of synthetic silica powder and production of silica glass molded form |
| KR20010097800A (en) * | 2000-04-26 | 2001-11-08 | 정구일 | Vertical Burning Furnace |
| CN102778128A (en) * | 2012-08-17 | 2012-11-14 | 西安瑞驰节能工程有限责任公司 | Airtight-ring-type heating furnace insulating from air |
| CN210001595U (en) * | 2019-05-09 | 2020-01-31 | 贵阳铝镁设计研究院有限公司 | Structure of continuous graphitizing furnace using carbon raw materials |
-
2023
- 2023-07-28 CN CN202310934082.6A patent/CN116659238B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08301615A (en) * | 1995-04-28 | 1996-11-19 | Mitsubishi Chem Corp | Production of synthetic silica powder and production of silica glass molded form |
| KR20010097800A (en) * | 2000-04-26 | 2001-11-08 | 정구일 | Vertical Burning Furnace |
| CN102778128A (en) * | 2012-08-17 | 2012-11-14 | 西安瑞驰节能工程有限责任公司 | Airtight-ring-type heating furnace insulating from air |
| CN210001595U (en) * | 2019-05-09 | 2020-01-31 | 贵阳铝镁设计研究院有限公司 | Structure of continuous graphitizing furnace using carbon raw materials |
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| CN116659238A (en) | 2023-08-29 |
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