CN117308580A - Graphitizing furnace with novel cooling system - Google Patents

Abstract

The invention provides a graphitizing furnace with a novel cooling system, which comprises a furnace body, wherein a furnace core with a hollow structure is arranged in the furnace body, the furnace core transversely extends from one end of the furnace body to the other end, two ends of the furnace core are respectively provided with an opening communicated with the outside of the furnace body, and carbon materials to be graphitized are introduced into the furnace core; the graphitizing furnace further comprises a discharging section, wherein the discharging section is positioned outside the furnace body and communicated with the furnace core, a cooling assembly is arranged on the discharging section, and the cooling assembly is used for cooling graphitized products in the discharging section. The heating temperature field of the graphitizing furnace is uniformly positioned on the outer peripheral side of the carbon material to be graphitized, so that the carbon material to be graphitized in the furnace core can be uniformly heated, and the uniformity of graphitized products is improved. The discharging process and the cooling process of the graphitized product are performed simultaneously, so that the continuity of the graphitizing process is realized, and the graphitizing efficiency is improved.

Description

Graphitizing furnace with novel cooling system

Technical Field

The invention relates to graphitization equipment, in particular to a graphitization furnace with a novel cooling system.

Background

Along with the wide application of the lithium ion battery in the fields of electric automobiles and energy storage, the lithium battery industry continuously develops at a high speed, and higher requirements are put on graphitization of the cathode material. In the industrial production of carbon negative electrode materials for lithium ion batteries, common carbonaceous materials need to be graphitized at a temperature of 2500 ℃ or higher, and non-carbon residues are completely gasified and removed at a high temperature to produce artificial graphite with good crystallinity and very low impurity content, which is commonly called graphitization treatment in the industry, and corresponding equipment is called graphitization furnace.

Currently, the graphitization treatment of the negative electrode material generally requires feeding, graphitization treatment, cooling and discharging processes. At present, most of the stages are carried out independently, the graphitization process is discontinuous, the cooling period is long, and the yield of the negative electrode product is influenced.

Disclosure of Invention

The invention aims to overcome the defects of discontinuous graphitization process and long cooling period in the prior art, and provides a graphitization furnace with a novel cooling system.

The invention solves the technical problems by the following technical scheme:

the invention provides a graphitizing furnace with a novel cooling system, which comprises a furnace body, wherein a furnace core with a hollow structure is arranged in the furnace body, the furnace core transversely extends from one end of the furnace body to the other end, two ends of the furnace core are respectively provided with an opening communicated with the outside of the furnace body, and carbon materials to be graphitized are introduced into the furnace core;

The graphitizing furnace further comprises a discharging section, wherein the discharging section is positioned outside the furnace body and communicated with the furnace core, a cooling assembly is arranged on the discharging section, and the cooling assembly is used for cooling graphitized products in the discharging section.

In the scheme, the furnace core is used for heating the carbon material to be graphitized in the furnace core, namely, the heated temperature field is uniformly positioned on the outer periphery side of the carbon material to be graphitized, so that the carbon material to be graphitized in the furnace core can be uniformly heated, the uniformity of graphitized products is improved, the quality difference of the graphitized products is reduced, and the quality of the products is improved. In addition, in the discharging process of the graphitized product in the furnace core, the graphitized product is cooled by utilizing a cooling assembly so as to reduce the temperature of the graphitized product to the normal temperature level. In other words, the discharging process and the cooling process of the graphitized product are performed simultaneously, so that the continuity of the graphitizing process is further realized, the production period is shortened, and the graphitizing efficiency is improved.

Preferably, a liquid cooling channel is arranged in the discharging section and positioned at the outer peripheral side of the inner cavity of the discharging section;

the cooling component is arranged in the liquid cooling channel, or is communicated with the liquid cooling channel.

In the scheme, the structure is adopted, and graphitized products in the discharging section are cooled through the liquid cooling channel in the discharging section, so that the space layout is reasonable, and the graphitized products are effectively cooled; the liquid cooling channel is located the periphery side of graphitization product, can also guarantee the homogeneity of cooling, avoids graphitization product cooling rate uneven product homogeneity relatively poor problem that leads to.

Preferably, the liquid cooling channels are multiple, and the liquid cooling channels are arranged in the discharging section at intervals along the extending direction of the discharging section;

or, the liquid cooling channel is spirally arranged in the discharging section along the extending direction of the discharging section.

In this scheme, adopt above-mentioned structural style, a plurality of liquid cooling passageway are installed respectively, can effectively promote graphitization product cooling efficiency. The liquid cooling channel is spirally arranged in the discharging section along the extending direction of the discharging section, so that the liquid cooling channel is convenient to install.

Preferably, the cooling assembly comprises a liquid cooling pipeline, at least part of the liquid cooling pipeline passes through the liquid cooling channel, and the liquid cooling pipeline is communicated with an external circulating cooling liquid system;

or, the cooling assembly comprises a liquid cooling pipeline and a water nozzle, wherein the water nozzle is respectively arranged at the inlet and the outlet of the liquid cooling channel, and the water nozzle is communicated with an external circulating cooling liquid system through the liquid cooling pipeline.

In this scheme, adopt above-mentioned structural style, when the coolant liquid flows through the liquid cooling pipeline, realize cooling the graphitization product through cooling down the liquid cooling pipeline, effectively cool down the graphitization product. The cooling liquid flows into the liquid cooling channel from the liquid cooling pipeline through the water nozzle so as to cool graphitization products, and the water nozzle and the liquid cooling pipeline are arranged outside the liquid cooling channel, so that the liquid cooling channel is convenient to install and the working state of the cooling assembly is also convenient to control, and the reliability is high.

Preferably, the graphitizing furnace further comprises an inner water-cooling spiral cooler and an outer water-cooling spiral cooler, and a discharge port of the discharge section is communicated with a feed inlet of the inner water-cooling spiral cooler and a feed inlet of the outer water-cooling spiral cooler.

In the scheme, the graphitized product is cooled by the internal and external water-cooling spiral cooler and then discharged from the furnace, so that graphitized continuity is realized. In addition, utilize the liquid cooling pipeline to carry out first heavy cooling to the graphitization product, utilize inside and outside water-cooling spiral cooler to carry out the second heavy cooling to the graphitization product of output in the discharge gate, cool down the graphitization product through continuous double cooling, cool down effectually, further accelerate the cooling rate of graphitization product, improvement production efficiency.

Preferably, the discharging section comprises a first section and a second section which are connected at a preset angle, and the second section extends downwards from one end, far away from the furnace body, of the first section.

In this scheme, adopt above-mentioned structural style, interconnect's first section and second section constitution ejection of compact section have prolonged the cooling route of graphitization product to the second section is buckled downwards, has reduced graphitization stove's whole length on the one hand, effectively reduces graphitization stove's occupation space, on the other hand, is convenient for dock inside and outside water-cooling screw cooler.

Preferably, the graphitizing furnace further comprises a discharge section jacking device, wherein the discharge section jacking device is arranged at one end of the first section away from the furnace core, and the discharge section jacking device is used for applying force to the first section towards the direction of the furnace core.

In this scheme, adopt above-mentioned structural style, reduce or avoid the discharging section to appear violently rocking the condition at the in-process of cooling module work, and then fix, protect the stove core.

Preferably, the material of the discharging section is graphite;

and/or the furnace core is made of graphite.

In this scheme, the material of ejection of compact section adopts graphite, avoids the ejection of compact section to adopt other materials to lead to graphitization products to be polluted. The furnace core is made of graphite, the graphite has excellent heat conducting performance, and the graphite is used as an intermediate to heat the carbon material to be graphitized, so that the energy lost in the heat conduction process is effectively reduced, and the cost is further effectively reduced. In addition, the graphite is adopted as the material of the furnace core, so that the graphitized products are prevented from being polluted due to the adoption of other materials in the furnace core.

Preferably, the graphitizing furnace further comprises an electric heating device for heating the furnace core.

In the scheme, the electric heating device is used for carrying out electrifying heating on the furnace core, and the furnace core transfers heat to the carbon material to be graphitized so as to realize high-temperature graphitization, thereby being convenient for controlling and maintaining the stability of the heating temperature.

Preferably, the graphitizing furnace further comprises an electric heating device, wherein the electric heating device comprises an anode electric connecting component and a cathode electric connecting component, one end of the anode electric connecting component is used for being electrically connected with the anode of a power supply, and the other end of the anode electric connecting component is electrically connected with one end of the furnace core; one end of the negative electrode electric connection component is used for being electrically connected with a negative electrode of a power supply, and the other end of the negative electrode electric connection component is electrically connected with the other end of the furnace core.

In this scheme, adopt above-mentioned structural style, anodal electricity coupling assembling and negative pole electricity coupling assembling respectively with the power positive pole, the power negative pole circular telegram back, form closed circuit between power positive pole, anodal electricity coupling assembling, stove core, negative pole electricity coupling assembling and the power negative pole to realize the circular telegram heating to the stove core, make things convenient for staff to control electric heater unit's operating condition, and then improve graphitization operation's fail safe nature.

Preferably, the positive electrode electric connection assembly comprises a positive electrode aluminum row, a first electrode flexible connection copper row and an electrode positive electrode piece which are sequentially connected, wherein the power supply positive electrode is electrically connected with the positive electrode aluminum row, and the electrode positive electrode piece is electrically connected with the furnace core.

In this scheme, adopt above-mentioned structural style, power positive pole, positive pole aluminium row, first electrode flexible coupling copper bar, electrode positive pole spare and stove core are electric connection in proper order, utilize aluminium and copper good conductivity, effectively improved the fail safe nature of positive pole electrical connection subassembly electricity connection.

Preferably, the positive electrode aluminum bars are arranged below the furnace body, the two first electrode flexible connection copper bars extend upwards from two end parts of the positive electrode aluminum bars respectively, the other ends of the first electrode flexible connection copper bars are connected to the electrode positive electrode pieces positioned on two sides of the furnace core, and the electrode positive electrode pieces extend into the furnace body and are electrically connected with the furnace core.

In this scheme, adopt above-mentioned structural style, interconnect's anodal aluminium row, first electrode flexible coupling copper bar and electrode positive spare enclose into frame construction to the articulates on the furnace body, has improved anodal electric connection assembly's installation stability. In addition, the electrode positive pole piece supplies power to two sides of the furnace core, so that the uniformity of the electric heating of the furnace core is improved.

Preferably, a first liquid cooling jacket is arranged on the electrode positive pole piece and is used for communicating circulating cooling liquid;

and/or the positive electrode aluminum bar is connected with the first electrode flexible connection copper bar through a first connecting piece, and the first electrode flexible connection copper bar is connected with the electrode positive electrode piece through a second connecting piece.

In the scheme, the structure is adopted, the first liquid cooling jacket is used for cooling the electrode positive electrode piece, so that the damage conditions of deformation, softening and the like of the electrode positive electrode piece in a high-temperature environment for a long time are reduced or avoided, and the service life of the electrode positive electrode piece is effectively prolonged. The positive electrode aluminum bar and the first electrode flexible connection copper bar are clamped and fixed through the first connecting piece, the first electrode flexible connection copper bar and the electrode positive electrode piece are clamped and fixed through the second connecting piece, the fixing effect between the positive electrode aluminum bar, the first electrode flexible connection copper bar and the electrode positive electrode piece is good, and then the connection stability between the inside parts of the positive electrode electric connection assembly is improved.

Preferably, the negative electrode electric connection assembly comprises a negative electrode aluminum row, a second electrode flexible connection copper row and an electrode negative electrode piece, wherein the power supply negative electrode is electrically connected with the negative electrode aluminum row, and the electrode negative electrode piece is electrically connected with the furnace core.

In the scheme, the power supply negative electrode, the negative electrode aluminum row, the second electrode flexible connection copper row, the electrode negative electrode piece and the furnace core are sequentially and electrically connected, and the safety and reliability of the electric connection of the negative electrode electric connection component are effectively improved by utilizing the excellent electric conductivity of aluminum and copper.

Preferably, the cathode aluminum bars are arranged below the furnace body, two second electrode flexible connection copper bars extend upwards from two end parts of the cathode aluminum bars respectively, the other ends of the second electrode flexible connection copper bars are connected to electrode cathode pieces positioned on two sides of the furnace core, and the electrode cathode pieces extend into the furnace body and are electrically connected with the furnace core.

In this scheme, adopt above-mentioned structural style, interconnect's negative pole aluminium row, second electrode flexible coupling copper bar and electrode negative pole piece enclose into frame construction to the articulates on the furnace body, has improved negative pole electrical connection assembly's installation stability.

Preferably, a second liquid cooling jacket is arranged on the electrode negative electrode piece and is used for communicating circulating cooling liquid;

and/or the negative electrode aluminum bar is connected with the second electrode flexible connection copper bar through a third connecting piece, and the second electrode flexible connection copper bar is connected with the electrode negative electrode piece through a fourth connecting piece.

In the scheme, the structural form is adopted, the electrode negative electrode part is cooled through the second liquid cooling jacket, so that the damage conditions of deformation, softening and the like of the electrode negative electrode part in a high-temperature environment for a long time are reduced or avoided, and the service life of the electrode negative electrode part is effectively prolonged. In this scheme, adopt above-mentioned structural style, press from both sides tightly, fix negative pole aluminium bar and second electrode flexible coupling copper bar through the third connecting piece, press from both sides tightly, fix second electrode flexible coupling copper bar and electrode negative pole spare through the fourth connecting piece, fixed effectual between negative pole aluminium bar, the second electrode flexible coupling copper bar and the electrode negative pole spare, and then improved the connection stability between the inside spare part of negative pole electricity coupling assembling.

Preferably, a heat preservation material is arranged in the furnace body, and the heat preservation material is arranged on the outer periphery side of the furnace core.

In this scheme, adopt above-mentioned structural style, through filling the heat preservation material in the periphery side of stove core, along with the rising of furnace body inside temperature, the heat preservation material can prevent the loss of heat, reduces the loss of heat energy, effectively reduces the energy consumption.

Preferably, the material of the heat preservation material is carbon black.

In the scheme, the structural form is adopted, and the carbon black is used as a heat preservation material by utilizing the characteristics of higher resistivity, electric resistance and heat preservation of the carbon black, so that the loss of heat energy is effectively reduced.

Preferably, the graphitizing furnace further comprises an exhaust pipeline, one end of the exhaust pipeline is communicated with the furnace core, and the other end of the exhaust pipeline extends out of the furnace body.

In the scheme, the adoption of the structural form ensures that the gas generated after the high-temperature graphitization of the carbon material to be graphitized in the furnace core can be discharged through the exhaust pipeline, so that the influence on the product quality and the safe operation of equipment due to the aggregation of the gas in the furnace core is avoided.

Preferably, a high temperature resistant filter is arranged in the exhaust pipeline.

In the scheme, the structure is adopted, and the gas generated after the high-temperature graphitization of the carbon material to be graphitized in the furnace core is filtered through the filtering piece, so that the air emission pollution is reduced.

Preferably, the filter element is graphitized coke particles.

In this scheme, adopt above-mentioned structural style, adopt graphitized burnt grain to filter the gas in the exhaust duct, effectively play the effect of purifying and discharging, and graphitized burnt grain has high temperature resistant performance, can avoid being damaged by high temperature, influences the filter effect.

Preferably, the exhaust pipeline comprises a plurality of exhaust branch pipes, the exhaust branch pipes are arranged at intervals along the extending direction of the furnace core, one ends of the exhaust branch pipes are respectively communicated with the inner cavity of the furnace core, and the other ends of the exhaust branch pipes are communicated with the outside of the furnace body.

In the scheme, the gas in the furnace core is discharged through the plurality of exhaust branch pipes positioned at different positions by adopting the structure, and the gas generated after the graphitized carbon material in the furnace core is graphitized at high temperature can be discharged in time, so that the gas is prevented from blocking the inside of the furnace core, and the quality of graphitized products is influenced.

Preferably, the exhaust duct further includes a communication pipe and an outlet pipe that are communicated with each other, the communication pipe being configured to communicate one ends of the plurality of exhaust branch pipes away from the furnace core, the outlet pipe being connected to a side wall of the communication pipe.

In this scheme, adopt above-mentioned structural style, through the exhaust gas collection of a plurality of exhaust branch pipes together of intercommunication pipeline, the rethread export pipeline discharges, and the final discharge port's of effective control gas quantity and position, and then can reduce the quantity with the final discharge port butted purifier of gas, reduce cost.

Preferably, the graphitizing furnace further comprises a feeding assembly, wherein the feeding assembly is communicated with a feeding port of the furnace core and is used for conveying the carbon material to be graphitized into the furnace core.

In this scheme, adopt above-mentioned structural style, through feeding assembly with wait graphitized carbon material put into the stove core in, improve degree of automation, reduce the human cost, improve production efficiency.

Preferably, the feeding component comprises a spiral pusher, and a discharge hole of the spiral pusher is communicated with the feeding hole.

In the scheme, the spiral pusher is used for conveying the carbon material to be graphitized into the furnace core, so that the continuity of the graphitization process is realized, the conveying efficiency is high, the graphitization process can be accelerated, the safety and the reliability are realized, and the sealing performance is good.

Preferably, the feeding assembly further comprises a feed bin, and a discharge hole of the feed bin is communicated with a feed inlet of the spiral pusher.

In this scheme, adopt above-mentioned structural style, feed bin and spiral pusher mutually support and realize automatic feeding, compact structure, conveying efficiency is high. In addition, compared with the traditional graphitization furnace adopting a manual feeding mode, the method effectively reduces the danger coefficient through the feeding mode of the storage bin, and avoids the influence of dust in the carbon material to be graphitized on the health of workers.

Preferably, a control valve is arranged at the discharge port of the bin, and the control valve is configured to control the amount of the carbon material to be graphitized entering the furnace core by adjusting the opening degree of the control valve.

In the scheme, the adoption of the structural form can adjust the quantity of the carbon material required to be graphitized through the control valve according to the actual working condition, and the flexibility is high.

Preferably, the furnace body comprises an aluminum silicate shell, and the furnace core penetrates through the aluminum silicate shell;

and/or the peripheral wall of the furnace body is provided with a furnace protection belt.

In the scheme, the high temperature resistance of aluminum silicate is utilized, so that the furnace core and the carbon material to be graphitized can be heated in the furnace body, and the reliability of the graphitization furnace is improved. The furnace body is protected by the furnace protection belt.

Preferably, a manhole is formed on the wall surface of the furnace body;

and/or, the graphitizing furnace further comprises a base, and the furnace body is arranged on the base.

In the scheme, the manhole is formed in the wall surface of the furnace body by adopting the structural form, so that workers can observe or overhaul the graphitization furnace conveniently. The furnace body is arranged on the base so as to be convenient for placing the furnace body and also convenient for moving the furnace body according to actual working conditions.

The invention has the positive progress effects that:

the furnace core of the graphitizing furnace heats the carbon material to be graphitized in the furnace core, namely, the heated temperature field is uniformly positioned on the outer periphery side of the carbon material to be graphitized, so that the carbon material to be graphitized in the furnace core can be uniformly heated, the uniformity of graphitized products is further improved, the quality difference of the graphitized products is reduced, and the quality of the products is improved. In addition, in the discharging process of the graphitized product in the furnace core, the graphitized product is cooled by utilizing a cooling assembly so as to reduce the temperature of the graphitized product to the normal temperature level. In other words, the discharging process and the cooling process of the graphitized product are performed simultaneously, so that the continuity of the graphitizing process is further realized, the production period is shortened, and the graphitizing efficiency is improved.

Drawings

Fig. 1 is a front view of a graphitization furnace according to a preferred embodiment of the present invention.

Fig. 2 is a top view of a graphitization furnace according to a preferred embodiment of the present invention.

Fig. 3 is a sectional view A-A of fig. 2.

Fig. 4 is a sectional view of B-B of fig. 2.

Fig. 5 is a schematic installation view of the positive electrode electrical connection assembly according to the preferred embodiment of the invention.

Fig. 6 is a schematic installation view of a negative electrode electrical connection assembly according to a preferred embodiment of the invention.

Reference numerals illustrate:

furnace body 1

Furnace core 2

Feed inlet 21

Feed section 22

Discharge section 23

First section 231

Second section 232

Discharge outlet 233

Electric heating device 3

Positive electrode electric connection assembly 31

Positive electrode aluminum row 311

First electrode flexible connection copper bar 312

Electrode positive electrode member 313

First connector 314

Second connector 315

Negative electrode electrical connection assembly 32

Negative electrode aluminum row 321

Second electrode flexible connection copper bar 322

Electrode negative electrode member 323

Third connector 324

Fourth connector 325

Thermal insulation material 4

Exhaust duct 5

Filter element 51

Exhaust branch pipe 52

Communication pipeline 53

Outlet line 54

Feeding assembly 6

Screw pusher 61

Stock bin 62

Body 621

Tapered portion 622

Control valve 63

Cooling assembly 7

Liquid cooling pipeline 71

Internal and external water cooling screw cooler 72

Furnace protection belt 8

Manhole 9

Base 10

Feeding section jacking device 101

Ejection of compact section jacking device 102

Detailed Description

The invention is further illustrated by means of the following examples, which are not, however, intended to limit the scope of the invention.

As will be understood with reference to fig. 1 to 4, the embodiment of the invention provides a graphitizing furnace with a novel cooling system, the graphitizing furnace comprises a furnace body 1, a furnace core 2 with a hollow structure is arranged in the furnace body 1, the furnace core 2 transversely extends from one end to the other end of the furnace body 1, two ends of the furnace core 2 are respectively provided with an opening communicated with the outside of the furnace body 1, and carbon materials to be graphitized are introduced into the furnace core 2. The graphitization furnace comprises a discharge section 23, the discharge section 23 is positioned outside the furnace body 1 and is communicated with the furnace core 2, a cooling component 7 is arranged on the discharge section 23, and the cooling component 7 is used for cooling graphitization products in the discharge section 23. The furnace core 2 provides a moving space from the furnace end to the furnace tail of the carbon material to be graphitized, the carbon material to be graphitized is put into the furnace core 2 from the furnace end of the furnace core 2, and after high-temperature graphitization is carried out in the furnace core 2, graphitized products are output from the furnace end of the furnace core 2. The furnace core 2 is used for heating the carbon material to be graphitized in the furnace core, namely, the heated temperature field is uniformly positioned on the outer periphery of the carbon material to be graphitized, so that the carbon material to be graphitized in the furnace core 2 can be uniformly heated, the uniformity of graphitized products is further improved, the quality difference of the graphitized products is reduced, and the quality of the products is improved. In addition, the graphitized product in the furnace core 2 is cooled by the cooling component 7 during discharging so as to reduce the temperature of the graphitized product to the normal temperature level. In other words, the discharging process and the cooling process of the graphitized product are performed simultaneously, so that the continuity of the graphitizing process is further realized, the production period is shortened, and the graphitizing efficiency is improved.

In this embodiment, the material of the furnace core 2 is graphite, that is, the furnace core 2 is formed by enclosing graphite. The graphite has excellent heat conducting performance, and the graphite is used as an intermediate to heat the carbon material to be graphitized, so that the energy lost in the heat conduction process is effectively reduced, and the cost is further effectively reduced. Besides, the graphite is adopted as the material of the furnace core 2, so that the graphitized products are prevented from being polluted due to the adoption of other materials for the furnace core 2.

In this embodiment, as shown in fig. 1, the graphitization furnace further comprises an electric heating device 3, and the electric heating device 3 is used for heating the furnace core 2. In particular, at least part of the electric heating device 3 protrudes inside the furnace body 1 to heat the furnace core 2. The furnace core 2 is electrified and heated through the electric heating device 3, and the furnace core 2 transfers heat to the carbon material to be graphitized to realize high-temperature graphitization, so that the heating temperature is convenient to control and maintain stable.

Under the condition that graphite is selected as the furnace core 2, the graphite has excellent electric conductivity, and the electric heating device 3 is used for electrifying and heating the graphite, so that the energy consumption can be effectively reduced.

In this embodiment, as shown in fig. 1 and 3, the electric heating device 3 includes a positive electrode electric connection component 31 and a negative electrode electric connection component 32, one end of the positive electrode electric connection component 31 is used for being electrically connected with a positive electrode of a power supply, the material of the furnace core 2 is graphite, and the other end of the positive electrode electric connection component 31 is electrically connected with one end of the furnace core 2; one end of the negative electrode electric connection component 32 is used for being electrically connected with a negative electrode of a power supply, and the other end of the negative electrode electric connection component 32 is electrically connected with the other end of the furnace core 2. After the positive electrode electric connection component 31 and the negative electrode electric connection component 32 are respectively electrified with the positive electrode of the power supply and the negative electrode of the power supply, a closed loop is formed among the positive electrode of the power supply, the positive electrode electric connection component 31, the furnace core 2, the negative electrode electric connection component 32 and the negative electrode of the power supply, so that the furnace core 2 is electrified and heated, the working state of the electric heating device 3 is conveniently controlled by a worker, and the safety and reliability of graphitization operation are improved.

In this embodiment, as shown in fig. 1 and 5, the positive electrode electrical connection assembly 31 includes a positive electrode aluminum row 311, a first electrode flexible connection copper row 312 and an electrode positive electrode member 313, which are sequentially connected, the power supply positive electrode is electrically connected to the positive electrode aluminum row 311, and the electrode positive electrode member 313 is electrically connected to the furnace core 2. In other words, the power source anode, the anode aluminum bar 311, the first electrode flexible connection copper bar 312, the electrode anode member 313 and the furnace core 2 are electrically connected in sequence, and the safety and reliability of the electrical connection of the anode electrical connection assembly 31 are effectively improved by utilizing the excellent electrical conductivity of aluminum and copper.

In this embodiment, as shown in fig. 5, the positive aluminum bar 311 is disposed below the furnace body 1, two first electrode flexible connection copper bars 312 extend upward from two end portions of the positive aluminum bar 311, the other end of the first electrode flexible connection copper bars 312 is connected to electrode positive members 313 located at two sides of the furnace core 2, and the electrode positive members 313 extend into the furnace body 1 and are electrically connected to the furnace core 2. The mutually connected positive electrode aluminum bar 311, the first electrode flexible connection copper bar 312 and the electrode positive electrode piece 313 are enclosed to form a frame structure and are hung on the furnace body 1, so that the installation stability of the positive electrode electric connection assembly 31 is improved. In addition, the electrode positive electrode pieces 313 supply power to the two sides of the furnace core 2, so that the uniformity of the electric heating of the furnace core 2 is improved.

In some embodiments, the electrode positive member 313 is provided with a first liquid cooling jacket for communicating the circulating cooling liquid. The first liquid cooling jacket is used for cooling the electrode positive electrode member 313, so that damage conditions such as deformation, softening and the like of the electrode positive electrode member 313 in a high-temperature environment for a long time are reduced or avoided, and the service life of the electrode positive electrode member 313 is effectively prolonged. The positive electrode aluminum bar 311 is connected with the first electrode flexible connection copper bar 312 through a first connecting piece 314, and the first electrode flexible connection copper bar 312 is connected with the electrode positive electrode piece 313 through a second connecting piece 315. The positive electrode aluminum bar 311 and the first electrode flexible connection copper bar 312 are clamped and fixed through the first connecting piece 314, the first electrode flexible connection copper bar 312 and the electrode positive electrode piece 313 are clamped and fixed through the second connecting piece 315, the fixing effect between the positive electrode aluminum bar 311, the first electrode flexible connection copper bar 312 and the electrode positive electrode piece 313 is good, and then the connection stability between the internal parts of the positive electrode electric connection assembly 31 is improved. For example, the first connecting member 314 may be an aluminum bar clamping plate, and the second connecting member 315 may be an electrode flexible connecting clamping plate.

In this embodiment, as shown in fig. 1 and 6, the negative electrode electrical connection assembly 32 includes a negative electrode aluminum row 321, a second electrode flexible connection copper row 322, and an electrode negative electrode member 323, the power supply negative electrode is electrically connected to the negative electrode aluminum row 321, and the electrode negative electrode member 323 is electrically connected to the furnace core 2. In other words, the power supply negative electrode, the negative electrode aluminum bar 321, the second electrode flexible connection copper bar 322, the electrode negative electrode member 323 and the furnace core 2 are electrically connected in sequence, and the safety and reliability of the electrical connection of the negative electrode electrical connection assembly 32 are effectively improved by utilizing the excellent electrical conductivity of aluminum and copper.

In this embodiment, as shown in fig. 6, the negative electrode aluminum bar 321 is disposed below the furnace body 1, two second electrode flexible connection copper bars 322 extend upward from two end portions of the negative electrode aluminum bar 321, the other end of the second electrode flexible connection copper bar 322 is connected to electrode negative electrode pieces 323 located at two sides of the furnace core 2, and the electrode negative electrode pieces 323 extend into the furnace body 1 and are electrically connected with the furnace core 2. The mutually connected negative electrode aluminum bar 321, the second electrode flexible connection copper bar 322 and the electrode negative electrode piece 323 enclose to form a frame structure and are hung on the furnace body 1, so that the installation stability of the negative electrode electric connection assembly 32 is improved.

In some embodiments, a second liquid-cooled jacket is provided on the electrode negative member 323 for communicating the circulating coolant. The second liquid cooling jacket is used for cooling the electrode negative electrode part 323, so that the damage conditions of deformation, softening and the like of the electrode negative electrode part 323 in a high-temperature environment for a long time are reduced or avoided, and the service life of the electrode negative electrode part 323 is effectively prolonged. The negative electrode aluminum bar 321 is connected with the second electrode flexible connection copper bar 322 through a third connecting piece 324, and the second electrode flexible connection copper bar 322 is connected with the electrode negative electrode piece 323 through a fourth connecting piece 325. The third connecting piece 324 is used for clamping and fixing the negative electrode aluminum bar 321 and the second electrode flexible connection copper bar 322, the fourth connecting piece 325 is used for clamping and fixing the second electrode flexible connection copper bar 322 and the electrode negative electrode piece 323, the fixing effect between the negative electrode aluminum bar 321, the second electrode flexible connection copper bar 322 and the electrode negative electrode piece 323 is good, and the connection stability between parts inside the negative electrode electric connection assembly 32 is improved. For example, the third connecting member 324 may be an aluminum bar clamping plate, and the fourth connecting member 325 may be an electrode flexible connecting clamping plate.

In this embodiment, as shown in fig. 3, 5 and 6, a heat insulating material 4 is provided in the furnace body 1, and the heat insulating material 4 is provided on the outer peripheral side of the furnace core 2. By filling the heat preservation material 4 on the outer periphery of the furnace core 2, the heat preservation material 4 can prevent heat loss along with the increase of the temperature inside the furnace body 1, thereby reducing heat loss and effectively reducing energy consumption.

In this embodiment, the material of the insulating material 4 is carbon black. By utilizing the characteristics of higher resistivity, resistance and heat preservation of the carbon black, the carbon black is used as the heat preservation material 4, so that the loss of heat energy is effectively reduced.

In this embodiment, as shown in fig. 3, the graphitizing furnace further includes an exhaust pipe 5, one end of the exhaust pipe 5 communicates with the furnace core 2, and the other end of the exhaust pipe 5 extends out of the furnace body 1. The gas generated by graphitizing the carbon material to be graphitized in the furnace core 2 at high temperature can be discharged through the exhaust pipeline 5, so that the phenomenon that the product quality and the safe operation of equipment are influenced due to the aggregation of the gas in the furnace core 2 is avoided. Wherein, the exhaust pipe 5 can be a carbon steel pipe.

Preferably, the other end of the exhaust pipe 5 is connected to a purifying device, and the air pollution is reduced by purifying the gas exhausted from the exhaust pipe 5 by the purifying device.

In this embodiment, as shown in fig. 3, a high temperature resistant filter 51 is provided in the exhaust duct 5. The gas generated by graphitizing the carbon material to be graphitized in the furnace core 2 at high temperature is filtered by the filter element 51, so that the air emission pollution is reduced.

Preferably, the filter 51 is graphitized coke particles. Adopt graphitized burnt grain to filter the gas in the exhaust pipe 5, effectively play the effect of purifying and discharging, and graphitized burnt grain has high temperature resistant performance, can avoid being damaged by high temperature, influences the filter effect. Specifically, the filter element 51 adopts graphitized coke particles with different particle sizes, so that a plurality of holes are formed in the filter element 51 formed by stacking the graphitized coke particles, and gas passes through the holes. In other embodiments, other refractory filter materials may be used for filter element 51.

In the present embodiment, as shown in fig. 3, the exhaust duct 5 includes a plurality of exhaust branch pipes 52, the exhaust branch pipes 52 being provided at intervals along the extending direction of the furnace core 2, one ends of the plurality of exhaust branch pipes 52 being respectively communicated with the inner cavity of the furnace core 2, and the other ends being communicated with the outside of the furnace body 1. The gas in the furnace core 2 is discharged through a plurality of exhaust branch pipes 52 positioned at different positions, and the gas generated after the graphitized carbon material in the furnace core 2 is graphitized at high temperature can be discharged in time, so that the gas is prevented from blocking the inside of the furnace core 2, and the quality of graphitized products is affected.

In the present embodiment, as shown in fig. 3, the exhaust duct 5 further includes a communication pipe 53 and an outlet pipe 54 that are communicated with each other, the communication pipe 53 being configured to communicate one ends of the plurality of exhaust branch pipes 52 away from the furnace core 2, the outlet pipe 54 being connected to a side wall of the communication pipe 53. The exhaust gases of the exhaust branch pipes 52 are collected together through the communication pipeline 53 and then discharged through the outlet pipeline 54, so that the number and the positions of the final gas discharge ports are effectively controlled, the number of purifying devices in butt joint with the final gas discharge ports can be reduced, and the cost is reduced.

Specifically, as shown in fig. 3, five exhaust branch pipes 52 are provided at intervals along the extending direction of the furnace core 2, both ends of the communication pipe 53 are respectively communicated with the exhaust branch pipes 52 at both ends, and the five exhaust branch pipes 52 are communicated, and an outlet pipe 54 is connected to the middle part of the communication pipe 53. The number of the exhaust branch pipes 52 and the installation position of the outlet pipe 54 may be selected according to actual needs, and are not limited herein.

In the present embodiment, the plurality of exhaust branch pipes 52, the communication pipe 53, and the outlet pipe 54 are integrally formed, the assembly efficiency of the exhaust duct 5 is improved, and the leakage of gas from the junctions between the exhaust branch pipes 52, the communication pipe 53, and the outlet pipe 54 is avoided.

In other embodiments, the exhaust branch pipe 52 is connected with the communication pipeline 53 through a connecting piece, and the communication pipeline 53 is also connected with the outlet pipeline 54 through a connecting piece, so that the number of the exhaust branch pipes 52 can be conveniently adjusted according to actual conditions.

In this embodiment, as shown in fig. 1 and 3, the graphitization furnace further includes a feeding assembly 6, the feeding assembly 6 is connected to the feeding port 21 of the furnace core 2, and the feeding assembly 6 is used for feeding the carbon material to be graphitized into the furnace core 2. The carbon material to be graphitized is put into the furnace core 2 through the feeding assembly 6, so that the degree of automation is improved, the labor cost is reduced, and the production efficiency is improved.

In this embodiment, the feeding assembly 6 includes a screw pusher 61, and a discharge port of the screw pusher 61 communicates with the feed port 21. The spiral pusher 61 conveys the carbon material to be graphitized into the furnace core 2, so that the continuity of the graphitization process is realized, the conveying efficiency is high, the graphitization process can be accelerated, and the furnace is safe and reliable and has good sealing performance. The specific structure and operation principle of the screw pusher 61 are well known to those skilled in the art, and will not be described herein.

In this embodiment, the graphitizing furnace further includes a feeding section 22, the feeding section 22 is in a cylindrical structure, the feeding section 22 is located outside the furnace body 1 and is close to one end of the positive electrode electrical connection assembly 31, a feeding port of the feeding section 22 is communicated with a discharging port of the screw pusher 61, the discharging port of the feeding section 22 is communicated with the feeding port 21 of the furnace core 2, and the screw pusher 61 is used for conveying the carbon material to be graphitized into the furnace core 2 through the feeding section 22.

In this embodiment, the furnace core 2 and the feeding section 22 are coaxial and extend in the horizontal direction, so that the carbon material to be graphitized in the feeding section 22 can be smoothly sent to the furnace core 2, and the carbon material to be graphitized is prevented from being blocked in the feeding section 22.

In this embodiment, the feeding assembly 6 further comprises a bin 62, and a discharge port of the bin 62 is communicated with a feed port of the screw pusher 61. The carbon material to be graphitized is fed into the bin 62 and is output from the discharge port of the bin 62, and the screw pusher 61 transports the carbon material output from the discharge port of the bin 62 to realize feeding. The bin 62 and the spiral pusher 61 are matched with each other to realize automatic feeding, so that the structure is compact and the conveying efficiency is high. In addition, compared with the traditional graphitization furnace adopting a manual feeding mode, the danger coefficient is effectively reduced through the feeding mode of the bin 62, and the influence of dust in the carbon material to be graphitized on the health of workers is avoided.

In this embodiment, the discharge opening of the silo 62 is provided with a control valve 63, the control valve 63 being configured to control the amount of carbonaceous material to be graphitized into the furnace core 2 by adjusting the opening of the control valve 63. The amount of the carbon material required to be graphitized can be adjusted through the control valve 63 according to the actual working condition, and the flexibility is high.

In this embodiment, the bin 62 includes a main body 621 and a tapered portion 622 that are in communication with each other, the tapered portion 622 being connected below the main body 621. The tapered portion 622 provides a blanking passage from the main body portion 621 to the feed inlet of the screw pusher 61, and the space layout is reasonable. In addition, the walls of the tapered portion 622 may bear some of the compressive forces exerted by the carbonaceous material to be graphitized.

In this embodiment, the feeding channel in the bin 62 is vertically arranged, so that the carbon material to be graphitized in the bin 62 can be ensured to smoothly fall down, and the carbon material to be graphitized is prevented from being blocked in the bin 62 in the blanking process.

Specifically, as shown in fig. 1, the main body 621 has a tubular structure, the axis of the main body 621 is arranged vertically, the opening of the tapered portion 622 is directed upward, and the axis of the tapered portion 622 is arranged vertically.

In this embodiment, the bin 62 is further provided with an upper cover, one side of which is hinged to the main body 621, and the upper cover is used for closing the feed inlet of the bin 62. The feed inlet of the bin 62 is sealed through the upper cover, so that gas generated by heating the carbon material to be graphitized in the furnace core 2 escapes from the feed inlet of the bin 62, and further the influence on the health of workers is avoided.

In this embodiment, the bin 62 is also provided with a vibrating mechanism. The vibration mechanism is used as a vibration source to vibrate the wall surface of the bin 62, so that the carbon material to be graphitized in the bin 62 can smoothly fall down, and the blockage in the bin 62 is avoided.

The graphitization furnace further comprises a feeding section tightening device 101, wherein the feeding section tightening device 101 is arranged at one end of the feeding section 22 close to the screw pushing machine 61, and the feeding section tightening device 101 is used for applying force to the feeding section 22 towards the direction of the furnace core 2. The condition that the feeding section 22 is severely rocked in the working process of the spiral pusher 61 is reduced or avoided, and the furnace core 2 is further fixed and protected.

In this embodiment, the inner diameter of the feeding section 22 is larger than the inner diameter of the furnace core 2, so that the carbon material to be graphitized in the feeding section 22 can fill the space in the furnace core 2 as much as possible in the process of delivering the carbon material to be graphitized to the furnace core 2, thereby improving the space utilization rate and the graphitization efficiency. In other embodiments, the inner diameter of the feed section 22 coincides with the inner diameter of the furnace core 2.

In this embodiment, the material of the feeding section 22 is graphite, so as to avoid contamination of the carbon material to be graphitized due to the use of other materials in the feeding section 22.

In this embodiment, the material of the discharging section 23 is graphite, so as to avoid the graphitization product being contaminated due to the other materials used in the feeding section 22.

In this embodiment, a liquid cooling channel is disposed in the discharging section 23 and on the outer peripheral side of the inner cavity of the discharging section 23, and the cooling assembly 7 is disposed in the liquid cooling channel. The graphitized products in the discharging section 23 are cooled through the liquid cooling channel in the discharging section 23, so that the space layout is reasonable, and the graphitized products are effectively cooled; the liquid cooling channel is located the periphery side of graphitization product, can also guarantee the homogeneity of cooling, avoids graphitization product cooling rate uneven product homogeneity relatively poor problem that leads to. Further, the cooling assembly 7 includes a liquid cooling duct 71, at least a portion of the liquid cooling duct 71 passing through the liquid cooling passage, the liquid cooling duct 71 communicating with an external circulating cooling liquid system. When the cooling liquid flows through the liquid cooling pipeline 71, the graphitization product is cooled by cooling the liquid cooling pipeline, so that the graphitization product is effectively cooled.

In other embodiments, a liquid cooling channel is arranged in the discharging section 23 and located on the outer peripheral side of the inner cavity of the discharging section 23, and the cooling assembly 7 is communicated with the liquid cooling pipeline. Further, the cooling assembly 7 comprises a liquid cooling pipeline 71 and a water nozzle, wherein the water nozzle is respectively arranged at the inlet and the outlet of the liquid cooling channel, and the water nozzle is communicated with an external circulating cooling liquid system through the liquid cooling pipeline 71. The cooling liquid flows into the liquid cooling channel from the liquid cooling pipeline 71 through the water nozzle so as to cool graphitization products, and the water nozzle and the liquid cooling pipeline 71 are arranged outside the liquid cooling channel, so that the liquid cooling pipeline is convenient to install and the working state of the cooling assembly 7 is also convenient to control, and the reliability is high.

In this embodiment, there are a plurality of liquid cooling channels, and a plurality of liquid cooling channels are disposed in the discharging section 23 at intervals along the extending direction of the discharging section 23. The plurality of liquid cooling channels are respectively arranged, so that the cooling efficiency of graphitized products can be effectively improved.

In other embodiments, the liquid cooling channels are disposed in the discharge section 23 in a spiral manner along the extending direction of the discharge section, so as to facilitate the installation of the liquid cooling channels. Further, a liquid inlet is formed in one end, close to the furnace core 2, of the liquid cooling channel, and a liquid outlet is formed in one end, far away from the furnace core 2, of the liquid cooling channel. The graphitized product moves in the discharging section 23, the temperature of the graphitized product in the discharging section 23, which is close to the furnace core 2, is higher than that of the graphitized product, which is far away from the furnace core 2, and the cooling liquid is introduced into the liquid cooling pipeline 1 from the liquid inlet, which is close to the furnace core 2, so that the cooling effect is good.

In this embodiment, the graphitizing furnace further comprises an inner and outer water-cooled screw cooler 72, and the discharge port 233 of the discharge section 23 is in communication with the feed port of the inner and outer water-cooled screw cooler 72. The graphitized product is discharged from the furnace after being cooled by the internal and external water-cooling spiral cooler 72, so that the graphitization continuity is realized. In addition, the liquid cooling pipeline 71 is utilized to cool the graphitized product for the first time, the internal and external water cooling spiral cooler 72 is utilized to cool the graphitized product output from the discharge hole 223 for the second time, the graphitized product is cooled through continuous double cooling, the cooling effect is good, the cooling speed of the graphitized product is further accelerated, and the production efficiency is improved. The inner and outer water-cooled spiral coolers 72 include an inner water-cooled spiral cooler and an outer water-cooled spiral cooler, and the specific structure and operation principle of the inner and outer water-cooled spiral coolers 72 are well known to those skilled in the art and are not described herein.

In this embodiment, as shown in fig. 3, the discharging section 23 includes a first section 231 and a second section 232 connected at a predetermined angle, and the second section 232 extends downward from an end of the first section 231 away from the furnace body 1. The first section 231 and the second section 232 which are connected with each other form the discharging section 23, so that the cooling path of graphitized products is prolonged, and the second section 232 is bent downwards, so that the integral length of the graphitizing furnace is reduced, the occupied space of the graphitizing furnace is effectively reduced, and the inner water-cooling spiral cooler 72 and the outer water-cooling spiral cooler are conveniently connected. Specifically, the first segment 231 and the second segment 232 are disposed at 90 degrees therebetween.

The graphitizing furnace further comprises a discharge section tightening device 102, wherein the discharge section tightening device 102 is arranged at one end of the first section 231 far away from the furnace core 2, and the discharge section tightening device 102 is used for applying force to the first section 231 towards the furnace core 2. The condition that the discharging section 23 is severely rocked in the working process of the cooling assembly 7 is reduced or avoided, and the furnace core 2 is further fixed and protected.

In some embodiments, the furnace body 1 comprises an aluminum silicate housing through which the furnace core 2 is disposed. By utilizing the high temperature resistance of aluminum silicate, the furnace core 2 and the carbon material to be graphitized can be heated in the furnace body 1, so that the reliability of the graphitization furnace is improved. For example, the aluminum silicate housing has a rectangular parallelepiped shape. The outer peripheral wall of the furnace body 1 is provided with a furnace protection belt 8, and the furnace body 1 is protected by the furnace protection belt 8. Specifically, as shown in fig. 1 and 2, at least part of the furnace protection belt 8 circumferentially surrounds the outer peripheral side of the furnace body 1 in the longitudinal direction and/or the width direction of the furnace body 1.

In some embodiments, as shown in fig. 2, a manhole 9 is formed on the wall surface of the furnace body 1, so that workers can observe or overhaul the graphitization furnace. Specifically, four manholes 9 are formed in the upper wall surface of the furnace body 1 in a dispersed manner. The number of manholes 9 may be selected according to actual needs, and is not limited herein. As shown in fig. 1 and 3, the graphitizing furnace further comprises a base 10, and the furnace body 1 is arranged on the base 10 so as to place the furnace body 1 and also facilitate moving the furnace body 1 according to actual working conditions.

In particular, the carbonaceous material to be graphitized is fed from the silo 62, the opening degree of the control valve 63 is adjusted to control the amount of the carbonaceous material to be graphitized output from the discharge port of the silo 62, and the carbonaceous material to be graphitized is fed into the furnace core 2 by the screw pusher 61. In this process, the positive electrode electrical connection assembly 31 and the negative electrode electrical connection assembly 32 are used for electrically heating the furnace core 2 so as to graphitize the carbon material to be graphitized moving in the furnace core 2 at a high temperature, and the gas generated by heating the carbon material is discharged to the outside of the furnace body 1 through the exhaust pipeline 5. The carbon material is graphitized at a high temperature to form a graphitized product, and the graphitized product is cooled by passing through a liquid cooling pipeline 71 and an internal and external water cooling spiral cooler 72 in sequence to reduce the temperature of the graphitized product to a normal temperature level. Therefore, the steps of feeding, heating, cooling, discharging and the like can be completed through the graphitizing furnace without independently completing the operations in different equipment, so that the continuity of the graphitizing process is improved, the production period is effectively reduced, and the graphitizing furnace in the embodiment has high automation degree and effectively reduces the labor cost.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims (29)

1. The graphitizing furnace with the novel cooling system is characterized by comprising a furnace body, wherein a furnace core with a hollow structure is arranged in the furnace body, the furnace core transversely extends from one end of the furnace body to the other end, two ends of the furnace core are respectively provided with an opening communicated with the outside of the furnace body, and carbon materials to be graphitized are introduced into the furnace core;

the graphitizing furnace further comprises a discharging section, wherein the discharging section is positioned outside the furnace body and communicated with the furnace core, a cooling assembly is arranged on the discharging section, and the cooling assembly is used for cooling graphitized products in the discharging section.

2. The graphitization furnace with the novel cooling system according to claim 1, wherein a liquid cooling channel is arranged in the discharging section and positioned on the outer periphery side of the inner cavity of the discharging section;

The cooling component is arranged in the liquid cooling channel, or is communicated with the liquid cooling channel.

3. The graphitization furnace with the novel cooling system according to claim 2, wherein a plurality of liquid cooling channels are provided, and a plurality of liquid cooling channels are arranged in the discharging section at intervals along the extending direction of the discharging section;

or, the liquid cooling channel is spirally arranged in the discharging section along the extending direction of the discharging section.

4. The graphitization furnace with the novel cooling system of claim 3 wherein the cooling assembly comprises a liquid cooling conduit, at least a portion of the liquid cooling conduit passing through the liquid cooling passage, the liquid cooling conduit in communication with an external circulating cooling fluid system;

or, the cooling assembly comprises a liquid cooling pipeline and a water nozzle, wherein the water nozzle is respectively arranged at the inlet and the outlet of the liquid cooling channel, and the water nozzle is communicated with an external circulating cooling liquid system through the liquid cooling pipeline.

5. The graphitizing furnace with the novel cooling system of claim 1, further comprising an internal and external water-cooled screw cooler, wherein the discharge port of the discharge section is in communication with the feed port of the internal and external water-cooled screw cooler.

6. The graphitizing furnace with a novel cooling system of claim 1, wherein the discharge section comprises a first section and a second section connected at a predetermined angle, the second section extending downwardly from an end of the first section remote from the furnace body.

7. The graphitizing furnace with a novel cooling system of claim 6 further comprising a discharge section tightening device disposed at an end of the first section remote from the furnace core, the discharge section tightening device configured to apply a force to the first section toward the furnace core.

8. The graphitizing furnace with the novel cooling system according to claim 1, wherein the material of the discharging section is graphite;

and/or the furnace core is made of graphite.

9. The graphitization furnace with the novel cooling system of claim 1 further comprising an electrical heating device for heating the furnace core.

10. The graphitizing furnace with the novel cooling system of claim 9, further comprising an electric heating device, wherein the electric heating device comprises a positive electrode electric connection assembly and a negative electrode electric connection assembly, one end of the positive electrode electric connection assembly is used for being electrically connected with a positive electrode of a power supply, and the other end of the positive electrode electric connection assembly is electrically connected with one end of the furnace core; one end of the negative electrode electric connection component is used for being electrically connected with a negative electrode of a power supply, and the other end of the negative electrode electric connection component is electrically connected with the other end of the furnace core.

11. The graphitizing furnace with the novel cooling system of claim 10, wherein the positive electrode electrical connection assembly comprises a positive electrode aluminum bar, a first electrode flexible connection copper bar and an electrode positive electrode piece which are sequentially connected, wherein the power supply positive electrode is electrically connected to the positive electrode aluminum bar, and the electrode positive electrode piece is electrically connected to the furnace core.

12. The graphitizing furnace with the novel cooling system according to claim 11, wherein the positive aluminum bar is arranged below the furnace body, two first electrode flexible connection copper bars extend upwards from two end parts of the positive aluminum bar respectively, the other ends of the first electrode flexible connection copper bars are connected with the electrode positive pieces positioned on two sides of the furnace core, and the electrode positive pieces extend into the furnace body and are electrically connected with the furnace core.

13. The graphitization furnace with the novel cooling system according to claim 11, wherein a first liquid cooling jacket is arranged on the electrode positive pole piece and is used for communicating circulating cooling liquid;

and/or the positive electrode aluminum bar is connected with the first electrode flexible connection copper bar through a first connecting piece, and the first electrode flexible connection copper bar is connected with the electrode positive electrode piece through a second connecting piece.

14. The graphitizing furnace with the novel cooling system of claim 10, wherein the negative electrode electrical connection assembly comprises a negative electrode aluminum bar, a second electrode flexible connection copper bar and an electrode negative electrode piece, wherein the power supply negative electrode is electrically connected to the negative electrode aluminum bar, and wherein the electrode negative electrode piece is electrically connected to the furnace core.

15. The graphitizing furnace with a novel cooling system according to claim 14, wherein the negative electrode aluminum bars are arranged below the furnace body, two groups of second electrode flexible connection copper bars extend upwards from two end parts of the negative electrode aluminum bars respectively, the other end of each group of second electrode flexible connection copper bars is connected with the electrode negative electrode pieces positioned on two sides of the furnace core, and the electrode negative electrode pieces extend into the furnace body and are electrically connected with the furnace core.

16. The graphitization furnace with the novel cooling system according to claim 14, wherein a second liquid cooling jacket is arranged on the electrode negative electrode piece and is used for communicating circulating cooling liquid;

and/or the negative electrode aluminum bar is connected with the second electrode flexible connection copper bar through a third connecting piece, and the second electrode flexible connection copper bar is connected with the electrode negative electrode piece through a fourth connecting piece.

17. The graphitization furnace with the novel cooling system according to claim 1, wherein a heat preservation material is arranged in the furnace body, and the heat preservation material is arranged on the outer periphery side of the furnace core.

18. The graphitization furnace with the novel temperature reduction system according to claim 17, wherein the material of the thermal insulation material is carbon black.

19. The graphitizing furnace with the novel cooling system of claim 1 further comprising an exhaust gas conduit, one end of the exhaust gas conduit being in communication with the furnace core, the other end of the exhaust gas conduit extending beyond the furnace body.

20. The graphitization furnace with the novel cooling system of claim 19, wherein a high temperature resistant filter is disposed in the exhaust pipe.

21. The graphitization furnace with the novel cooling system of claim 20 wherein the filter is graphitized coke particles.

22. The graphitizing furnace with a novel cooling system according to claim 19, wherein the exhaust pipe comprises a plurality of exhaust branch pipes, the exhaust branch pipes are arranged at intervals along the extending direction of the furnace core, one ends of the exhaust branch pipes are respectively communicated with the inner cavity of the furnace core, and the other ends of the exhaust branch pipes are communicated with the outside of the furnace body.

23. The graphitization furnace with a novel cooling system according to claim 22, wherein the exhaust pipe further comprises a communication pipe and an outlet pipe which are communicated with each other, the communication pipe being configured to communicate one ends of the plurality of exhaust branch pipes away from the furnace core, the outlet pipe being connected to a side wall of the communication pipe.

24. The graphitization furnace with the novel temperature reduction system of claim 1, further comprising a feed assembly, wherein the feed assembly is in communication with a feed port of the furnace core and is configured to deliver the carbonaceous material to be graphitized into the furnace core.

25. The graphitization furnace with the novel temperature reduction system of claim 24, wherein the feed assembly comprises a screw pusher, and wherein a discharge port of the screw pusher is in communication with the feed port.

26. The graphitization furnace with the novel temperature reduction system of claim 25, wherein the feed assembly further comprises a silo, a discharge port of the silo being in communication with a feed port of the screw pusher.

27. The graphitization furnace with the novel temperature reduction system according to claim 26, wherein a discharge port of the silo is provided with a control valve configured to control an amount of the carbon material to be graphitized into the furnace core by adjusting an opening degree of the control valve.

28. The graphitization furnace with the novel cooling system according to claim 1, wherein the furnace body comprises an aluminum silicate shell, and the furnace core is arranged through the aluminum silicate shell;

and/or the peripheral wall of the furnace body is provided with a furnace protection belt.

29. The graphitizing furnace with the novel cooling system as claimed in claim 1, wherein a manhole is formed on the wall surface of the furnace body;

and/or, the graphitizing furnace further comprises a base, and the furnace body is arranged on the base.