CN105197914B - Carbon granular materials high temperature continuous gas is purified and graphitization system and technique - Google Patents
Carbon granular materials high temperature continuous gas is purified and graphitization system and technique Download PDFInfo
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- CN105197914B CN105197914B CN201510666304.6A CN201510666304A CN105197914B CN 105197914 B CN105197914 B CN 105197914B CN 201510666304 A CN201510666304 A CN 201510666304A CN 105197914 B CN105197914 B CN 105197914B
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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
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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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The present invention relates to a kind of purification of carbon granular materials high temperature continuous gas and graphitization system and technique, it includes raw material storage tank, feedstock transportation pump, purification gas reservoir, waste heat recovery tank and closed continuous graphitization electrothermal furnace, raw material preheating pipe is provided with waste heat recovery tank, waste heat recovery tank top is in funnel-form, and provided with coupled logical gaseous impurities condensation-crystallization room, the bottom of waste heat recovery tank is provided with outlet, raw material storage tank is connected with feedstock transportation pump intake, purification gas reservoir is connected with raw material preheating pipe, raw material preheating pipe one end is connected with feedstock transportation pump discharge, the other end is connected with closed continuous graphitization electrothermal furnace entrance, closed continuous graphitization electric heating outlet of still is connected with waste heat recovery tank；Compared with prior art, easy to operate, efficient, energy-conserving and environment-protective of the invention, can realize that carbon granular materials high temperature purification is processed with graphited serialization, and recycle the waste heat of the pyrocarbon crude granule material after graphitization raw material is preheated.
Description
Technical field
The present invention relates to carbon materials graphitization processing field, more particularly to a kind of carbon granular materials high temperature continuous gas
Purification and graphitization system and technique, are the purification of carbon granular materials high temperature continuous gas and graphite that same inventor is invented
Change the supporting and perfect of electrothermal furnace.
Background technology
Lithium-ion-power cell is the novel high-energy battery succeeded in developing in 20th century.This battery has energy density because of it
High, battery discharge platform is high, electric discharge is steady, and high and low temperature resistance is excellent, automatic discharging is very slow, the advantages of storage life is long,
It is widely used among military and civilian electrical equipment.With the development of science and technology, the battery of all size is produced, has obtained wide
It is applied to the every field such as various electrical equipment, digital electric generally, particularly it is by as 21 century electric automobile, electric tool
One of major impetus power supply, and will be applied in extensive energy storage, power network in terms of flat peak, and artificial satellite, Aero-Space
Deng high-tech and military field extensive use.
Negative material is one of critical material of lithium ion battery, and carbonaceous material is people's early start studies and apply
In the material of negative electrode of lithium ion battery, still receive significant attention so far.Conventional carbon negative pole material mainly has native graphite at present
With artificial into graphite.
There are amorphous graphite and highly crystalline ordered graphitic i.e. two kinds of crystalline flake graphite in native graphite.Native graphite is due to it
Degree of graphitization is high, is particularly suitable for the de-/embedding of lithium ion, because native graphite belongs to raw ore product, is of relatively low cost, always
It is one of emphasis of negative material research and development.Another aspect native graphite contains many dirts, although chemically
Purification can reach at a relatively high purity, but can also produce many problems, and the efficiency of production is not also high.Pass through more than 2800 degree
Superhigh temperature method of purification is simple, and production efficiency is also higher, and but because existing process equipment energy resource consumption is big, production cost is high, together
When be also difficult to obtain uniform and stable hyperthermal environments, constrain the development and application that become more meticulous of native graphite.
Delanium is that easy graphitized carbon is made through more than 3000 degree superhigh temperature graphitization processings, is used as lithium ion battery
The Delanium class material of negative material mainly has carbonaceous mesophase spherules graphite, graphite fibre, and other various graphitized carbons etc..
It is high-graphitized carbonaceous mesophase spherules, abbreviation MCMB that wherein people are the most known.The high-graphitized MCMB of commercialization
With excellent cyclicity, be main negative material used in current long-life small-scale lithium ion cell and electrokinetic cell it
One.Mesophase pitch carbon microspheres as lithium ion battery negative material in use, need carry out 3000 DEG C or so graphitization processings,
This undoubtedly substantially increases the cost of mesophase pitch carbon microspheres, and pole is unfavorable for widely using.Therefore, how modified technique,
Reduce manufacturing cost and improve performance, be the major subjects of current MCMB negative material research.
The either high temperature purification of native graphite, or graphous graphite powder production, all be unable to do without 3000 degree or so and surpass
High temperature production condition.The production of current domestic industry, the most widely used is the closed continuous graphitization electric heating of Acheson
Stove.This type of furnace is open type rectangle furnace binding, and graphite electrode production is used for earliest, uses it for producing lithium battery now
Carbon negative pole material, be with carbon crucible contain it is closed, carry out it is vertical or horizontal side by side, and fill carbon negative pole material crucible week
Enclose filling metallurgical coke resistance material, body of heater longitudinal direction two ends be powered, using the resistance heating of coke resistance material, finally make by
Heating crucible also produces resistance heating in itself, reaches the condition for obtaining superhigh temperature, realizes the graphitization of carbon negative pole material in crucible.
Heat shielding is carried out with heat-insulation and heat-preservation with auxiliary materials such as coke powder, carbon black, silica sand/coke/silicon carbide blends again in the periphery of combustion chamber.Chinese mugwort
The defect of strange inferior stove mainly has：
1st, acheson furnace is horizontal, unenclosed construction, and heat energy loss is serious, and institute's consuming electric power is by variable unit consumption
16000kwh/t, and product purity is not high；
2nd, body of heater cool time is long, and graphitizing process is needed 2~7 days in electrified regulation, but wants the material in stove naturally cold
But the operation temperature that can come out of the stove is arrived, it is necessary to long period of 2 weeks or so, low production efficiency；Carrying out water spray forces cooling to contract
Short cool time, but the evaporation environmental pollution influence of a large amount of water vapours is big, also easily because infiltration causes the product oxygen in stove
Change；
3rd, the heated inequality of product, central temperature reaches 2600 degree, and (the graphited temperature of top grade graphite cathode powder must reach
3000 degree or so), and the temperature at periphery and two is much lower, causes product degree of graphitization uneven, quality is unstable；
4th, the sulfur dioxide and other foreign gases that the furnace type structure of open type is discharged in temperature-rise period, which can not be collected, to be controlled
Reason, causes environmental pollution；
5th, waste heat can not be recycled in cooling procedure, cause substantial amounts of energy waste；
6th, take on stove manually to operate, labor intensity is big, and working environment is severe；
7th, yield poorly, a set of medium-sized about 4000 tons of stove annual production.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of easy to operate, efficient, energy-conserving and environment-protective, carbon can be achieved
The material continuous processing of grain, the purification of carbon granular materials high temperature continuous gas and the graphitization system of recoverable waste heat
And technique.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of carbon granular materials high temperature continuous gas purification and graphitization system, it includes raw material storage tank, feedstock transportation
Raw material is provided with pump, purification gas reservoir, waste heat recovery tank and closed continuous graphitization electrothermal furnace, the waste heat recovery tank
Economizer bank, the top of the waste heat recovery tank is provided with the gaseous impurities condensation-crystallization room matched with it, the waste heat recovery tank
Top be in funnel-form, and being connected with the gaseous impurities condensation-crystallization room, the top of the gaseous impurities condensation-crystallization room
In cone shape, the bottom of the waste heat recovery tank is provided with outlet, and the raw material storage tank passes through pipeline and the feedstock transportation pump
Entrance connection, one end of the raw material preheating pipe is by passing the pipeline and the feedstock transportation pump of the waste heat recovery tank
Outlet, the other end is by passing the pipeline of the waste heat recovery tank and the entrance of the closed continuous graphitization electrothermal furnace
Connection, the purification gas reservoir is connected by pipeline with the raw material preheating pipe, the closed continuous graphitization electric heating
The outlet of stove is connected by penetrating the pipeline of the waste heat recovery tank with the inside of the waste heat recovery tank.
Compared with prior art, the beneficial effects of the invention are as follows：
Present system is easy to operate, efficient, energy-conserving and environment-protective, can realize carbon granular materials high temperature purification and graphitization
The continuous production of processing, can make the metallic compound impurity contained in carbon granular materials rapidly and efficiently be vaporized into gas
State, and gas solid separation is carried out to the carbon granular materials after graphitization by waste heat recovery tank and gaseous impurities condensation-crystallization room,
The effective metallic compound impurity removed in carbon granular materials, obtains the carbon granular material after the higher graphitization of purity
Material, whole system can carry out closure, prevent material dust from spreading and being mixed into external impurity, can also pass through waste heat recovery
The waste heat that tank recycles after graphitization in carbon granular materials is preheated to raw material.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
As a kind of preferred embodiment of the present invention, it also includes intermediate products delivery pump, water cooling tank, water circulating pump
And water cooling tower, the water cooling tank includes being used for by the outer tank of cooling water and for the inner canister by intermediate products, described
The bottom of water cooling tower is connected by pipeline with the water circulating pump, and the water circulating pump passes through pipeline and the bottom of the outer tank
Connection, the top of the outer tank is connected by pipeline with the top of the water cooling tower, and the outlet of the waste heat recovery tank passes through
Pipeline is connected with the entrance of the intermediate products delivery pump, and the outlet of the intermediate products delivery pump passes through pipeline and the inner canister
Top connection, the bottom of the inner canister is provided with outlet.
Beneficial effect using above-mentioned preferred scheme is：Using circulating water cooling system, to the carbon particle after graphitization
Material is cooled down, both environmental protection and energy saving, reduces cost, and the fast cooling of the carbon granular materials after graphitization can be realized again.
As another preferred embodiment of the present invention, it also includes inertial gas tank, the inertial gas tank
Connected by pipeline with the raw material preheating pipe, the top of the gaseous impurities condensation-crystallization room passes through pipeline and the inner canister
Top is connected.
Beneficial effect using above-mentioned preferred scheme is：Before raw material input raw material preheating pipe, from inertial gas tank
Inert gas is introduced, such as argon gas, can be shielded in the entire system, prevents raw material in preheating or in closed company
When being heated up in continuous graphitization electrothermal furnace, oxygen occurs under the high temperature conditions for the inwall of raw material and closed continuous graphitization electrothermal furnace
Change, and inert gas does not react with carbon at high temperature, will not produce pernicious gas.
As another preferred embodiment of the present invention, it also includes cooling product delivery pump, product vacuum filter tank
And vacuum jet pump, the vacuum jet pump connected by pipeline with the top of the product vacuum filter tank, the inner canister
Outlet connect by pipeline with the entrance of the cooling product delivery pump, the outlet for cooling down product delivery pump by pipeline and
The top connection of the product vacuum filter tank, the bottom of the product vacuum filter tank is provided with outlet.
Beneficial effect using above-mentioned preferred scheme is：Vacuum filter is carried out to product, the carbon after graphitization can be collected
Plain fine grained product, can also remove the unnecessary purification gas and inert gas for being mingled with residual in product.
As another preferred embodiment of the present invention, the exit of the product vacuum filter tank is automatic provided with product
Metering packaging machine.
Beneficial effect using above-mentioned preferred scheme is：Carry out after metering packing, make with the product after graphitization to purifying
With more facilitating, transport, carrying are more convenient.
It is the feedstock transportation pump, the intermediate products delivery pump, described as another preferred embodiment of the present invention
It is graphite plunger pump to cool down product delivery pump.
Beneficial effect using above-mentioned preferred scheme is：Graphite plunger pump is more suitable for being used to convey graphite particle material.
As another preferred embodiment of the present invention, the closed continuous graphitization electrothermal furnace includes upper end electrode
And the lower end electrode below the upper end electrode, the inside of the upper end electrode is provided with to match with the upper end electrode
Upper end electrode in cooling chamber, cooling chamber is provided with the coolant inlet being in communication with the outside, the upper end electricity in the upper end electrode
It is filled with coolant in extremely interior cooling chamber, the upper end electrode is by the upper end electrode bus incoming end and upper end electrode that are connected with each other
The insertion end that conducts electricity constitute, the upper end electrode conduct electricity insertion end be located at the upper end electrode bus incoming end bottom, it is described on
The conduct electricity cross-sectional area of insertion end of termination electrode is gradually reduced from top to bottom；
The lower end electrode is provided with the through hole that material is transported to bottom from its top, and the through hole includes interconnecting
Lower end electrode on through hole and graphitization material outlet, the graphitization material outlet is located in the lower end electrode under through hole
Side, the cross-sectional area of through hole is gradually reduced from top to bottom in the lower end electrode, and is conducted electricity insertion end phase with the upper end electrode
Mutually matching, the cross-sectional area of the graphitization material outlet is equal to or less than the cross section of via bottoms in the lower end electrode
Product, the inside of the lower end electrode is provided with the lower end electrode cooling chamber matched with it, the lower end electrode cooling chamber and filled
There is coolant, the lower end electrode cooling chamber is communicated with cooling chamber and institute in the cooling liquid outlet in the external world, the upper end electrode
Lower end electrode cooling chamber is stated to be connected；
The top of the lower end electrode is provided with the insulation board matched with it, the insulation board and the top of the lower end electrode
Portion is brought into close contact, and the top of the insulation board is provided with the material distribution rings matched with the upper end electrode, the material distribution
The bottom of ring is fitted with the tight of the insulation board, and the inside of the material distribution rings is provided with the material distribution cavity of ring-type,
The outer circumference face of the material distribution rings is provided with the material charging aperture being connected with the material distribution cavity, the material point
Multiple material distribution discharging openings being connected with the material distribution cavity are evenly arranged with the inside circumference face of cloth ring；
The material distribution rings are sleeved on the bottom of the upper end electrode bus incoming end, its inside circumference face with it is described on
The material discharging area of annulus shape is formed between the outer wall of termination electrode, the bottom surrounding of the upper end electrode bus incoming end is set
There are the supporting part that it can be made to be placed on above the material distribution rings, the supporting part and the upper end electrode bus incoming end
It is fixedly connected, its bottom is fitted with the tight of the material distribution rings, the upper end electrode conducts electricity described in insertion end insertion
In lower end electrode in through hole, the material resistance of annulus shape is formed on its outer wall and the lower end electrode between the inwall of through hole
Heating chamber, the material resistance heating room is connected with the material discharging area；
The top of the upper end electrode, the bottom of the lower end electrode are equipped between flange, two flanges and are provided with
The connecting rod matched with them, the upper end electrode, the material distribution rings, the insulation board and the lower end electrode pass through
The flange is fixed together to form a composite entity with the connecting rod.
Beneficial effect using above-mentioned preferred scheme is：Closed continuous graphitization electrothermal furnace processing and manufacturing is simple, safeguard
Cost is low, easy to maintenance, and graphited carbon fine grained, indifferent gas are treated to the input of material resistance heating room by material charging aperture
Body and the purification gas that can be under the high temperature conditions reacted with the metal impurities compound in carbon fine grained, then
It is powered under inert atmosphere protection environment to upper end electrode, lower end electrode, electric current can just pass through the carbon fine grained resistance of itself
Heating, and the increase with electric current over time makes the fine grain temperature of carbon reach 3000 degree or so, thus complete graphitization and
Purification, then from graphitization material outlet outflow material resistance heating room, material below is further continued for being filled with material resistance heating
Room, carries out whole process serialization, and in heating process, it is not necessary to any external resistor material and graphite crucible consumption electricity
It can be heated, it is to avoid coordinate upper end electrode and lower end of the coolant circulation system to electrothermal furnace in waste of energy, production process
Electrode carries out cooling down, prevents electrode overheating, and the heat that coolant is taken away can also turn into required for other equipment production
Thermal source, recycled, it is energy-efficient, using easy to operate.
As another preferred embodiment of the present invention, it also includes heat conduction oil tank and heat conduction oil circulating pump, described
The heat-conducting oil heating coil pipe matched with the raw material preheating pipe is additionally provided with waste heat recovery tank, the heat-conducting oil heating coil pipe is in
Helical form, and be enclosed on the outer wall of the raw material preheating pipe, the heat conduction oil tank passes through pipeline and the heat conduction oil circulating pump
Entrance connection, the coolant that the outlet of the heat conduction oil circulating pump passes through pipeline and the closed continuous graphitization electrothermal furnace
Entrance is connected, and the cooling liquid outlet of the closed continuous graphitization electrothermal furnace passes through pipeline and the heat-conducting oil heating coil pipe
One end is connected, and the other end of the conduction oil coil pipe is provided with the conduction oil efferent duct for being used for outwardly providing thermal source, the heat conduction
One end of oily efferent duct is connected through the waste heat recovery tank with the heat-conducting oil heating coil pipe, and the other end is in communication with the outside, institute
The top for stating heat conduction oil tank is provided with the thermal oil return for being used for being repeatedly circulated conduction oil.
Beneficial effect using above-mentioned preferred scheme is：This Heat-conduction oil circulation system is more perfect, system, energy-conservation, uses
Easy to operate, upper end electrode and lower end electrode that can not only be efficiently rapidly to electrothermal furnace carry out cooling down, prevent electrode
Overheat, and electrothermal furnace discharge high temperature graphitization material in cooling procedure, can also allow leading in heat-conducting oil heating coil pipe
The heat that high-temperature material after deep fat continuation absorption graphitization discharges in cooling procedure is reheated, as other equipment life
Thermal source required for production, is recycled so that waste heat recovery system is more perfect.
One kind is using carbon granular materials high temperature continuous gas as described above purification with graphitization system to carbon particle
Material carries out purification and graphited technique, it is characterised in that it comprises the following steps：
A, first pass through the raw material preheating that carbon granular materials is delivered in the waste heat recovery tank by the feedstock transportation pump
Preheated in pipe, preheated, preheated while purification is concomitantly introduced into raw material preheating pipe with gas and inert gas
Carbon granular materials, purification gas and inert gas afterwards；
B, the carbon granular materials after the preheating, purification gas and inert gas passed through into the raw material preheating pipe again
It is delivered in the closed continuous graphitization electrothermal furnace and heats, the carbon granular materials after the preheating is carried out at graphitization
Reason, while making the metallic compound impurity direct boiling or anti-with purification gas generation chemistry in carbon granular materials
Should after vaporize, obtain the high temperature carbon after gaseous metal compound impurities, unnecessary purification gas, inert gas and graphitization
Grain material, and the conduction oil in the heat conduction oil tank is flowed through after the closed continuous graphitization electrothermal furnace heat absorption heating, stream
Enter the heat-conducting oil heating coil pipe and proceed heating, then outwardly provide thermal source by the conduction oil efferent duct, then lead to
Cross the thermal oil return and flow back to the heat conduction oil tank；
C then by pipeline by the gaseous metal compound impurities, unnecessary purification gas, inert gas and graphite
Pyrocarbon crude granule material after change is delivered in the waste heat recovery tank from the closed continuous graphitization electrothermal furnace
Pyrocarbon crude granule material after row gas solid separation, the graphitization is in the waste heat recovery tank natural cooling, the heat of release
Raw material in the raw material preheating pipe is preheated, the conduction oil in the heat-conducting oil heating coil pipe reheated, together
When be under gravity delivered to intermediate products delivery pump from the outlet of the waste heat recovery tank, obtain the carbon after natural cooling
Crude granule material；The gaseous metal compound impurities enter the gaseous impurities condensation-crystallization room by the waste heat recovery tank
Condensed, and crystallized in the gaseous impurities condensation-crystallization room；The unnecessary purification gas, inert gas pass through described
The pipeline in gaseous impurities condensation-crystallization ceiling portion is into the inner canister of the water cooling tank；
D, the carbon granular materials after the natural cooling is delivered to by the water by the intermediate products delivery pump again
Cooled down in the inner canister of cooling tank, carbon granular materials, unnecessary purification gas and inert gas after being cooled down；
E then by the cooling product delivery pump by the unnecessary purification gas of carbon granular materials after the cooling
The product vacuum filter tank, which is delivered to, with inert gas carries out vacuum filter, the carbon granular materials after being filtered；
F, finally by the product autometering packaging machine carbon granular materials after the filtering is packed, i.e.,
Obtain purification and the carbon granular materials after graphitization.
Compared with prior art, the beneficial effects of the invention are as follows：
Present invention process is easy to operate, efficient, energy-conserving and environment-protective, can realize carbon granular materials high temperature purification and graphitization
The continuous production of processing, can make the metallic compound impurity contained in carbon granular materials rapidly and efficiently be vaporized into gas
State, and gas solid separation is carried out to the carbon granular materials after graphitization by waste heat recovery tank and gaseous impurities condensation-crystallization room,
The effective metallic compound impurity removed in carbon granular materials, obtains the carbon granular material after satisfactory graphitization
Material, whole system can carry out closure, prevent material dust from spreading and being mixed into external impurity, can pass through waste heat recovery tank
Recycle the waste heat after graphitization in carbon granular materials and utilize conduction oil release in heat-conducting oil heating coil pipe
Heat is preheated to raw material, and the heat of the conduction oil release in heat-conducting oil heating coil pipe can also be utilized to provide heat for the external world
Source.
As the present invention a kind of preferred embodiment, in stepb, the closed continuous graphitization electrothermal furnace plus
Hot temperature is more than 2800 degrees Celsius.
Beneficial effect using above-mentioned preferred scheme is：When heating-up temperature is more than 2800 degrees Celsius, carbon granular materials
Degree of graphitization more preferably, quality is more preferably.
Brief description of the drawings
Fig. 1 is the structural representation of present system；
In accompanying drawing, the list of parts representated by each label is as follows：
1st, raw material storage tank, 2, inertial gas tank, 3, purification gas reservoir, 4, feedstock transportation pump, 5, raw material preheating pipe,
6th, closed continuous graphitization electrothermal furnace, 7, waste heat recovery tank, 8, gaseous impurities condensation-crystallization room, 9, intermediate products delivery pump,
10th, water cooling tank, 11, cooling product delivery pump, 12, product vacuum filter tank, 13, product autometering packaging machine, 14, vacuum
Jet pump, 15, heat conduction oil tank, 16, heat conduction oil circulating pump, 17, heat-conducting oil heating coil pipe, 18, conduction oil efferent duct, 19, lead
Deep fat return duct, 20, water circulating pump, 21, water cooling tower.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Embodiment
As shown in figure 1, a kind of carbon granular materials high temperature continuous gas purification and graphitization system, it includes raw material storage tank
1st, feedstock transportation pump 4, inertial gas tank 2, purification gas reservoir 3, waste heat recovery tank 7, closed continuous graphitization electric heating
Stove 6, heat conduction oil tank 15, heat conduction oil circulating pump 16, intermediate products delivery pump 9, water cooling tank 10, water circulating pump 20, water cooling
Tower 21, cooling product delivery pump 11, product vacuum filter tank 12 and vacuum jet pump 14.
The closed continuous graphitization electrothermal furnace 6 includes upper end electrode and the lower end below the upper end electrode
Electrode, the inside of the upper end electrode is provided with cooling chamber in the upper end electrode matched with the upper end electrode, the upper end electricity
Extremely interior cooling chamber is provided with the coolant inlet being in communication with the outside, and the upper end electrode is accessed by the upper end electrode bus being connected with each other
End and upper end electrode conduct electricity insertion end composition, and the upper end electrode conducts electricity insertion end positioned at the upper end electrode bus incoming end
Bottom, the conduct electricity cross-sectional area of insertion end of the upper end electrode is gradually reduced from top to bottom；
The lower end electrode is provided with the through hole that material is transported to bottom from its top, and the through hole includes interconnecting
Lower end electrode on through hole and graphitization material outlet, the graphitization material outlet is located in the lower end electrode under through hole
Side, the cross-sectional area of through hole is gradually reduced from top to bottom in the lower end electrode, and is conducted electricity insertion end phase with the upper end electrode
Mutually matching, the cross-sectional area of the graphitization material outlet is equal to or less than the cross section of via bottoms in the lower end electrode
Product, the inside of the lower end electrode is provided with associated lower end electrode cooling chamber, and the lower end electrode cooling chamber is communicated with
Cooling chamber is connected with the lower end electrode cooling chamber in extraneous cooling liquid outlet, the upper end electrode；
The top of the lower end electrode is provided with the insulation board matched with it, the insulation board and the top of the lower end electrode
Portion is brought into close contact, and the top of the insulation board is provided with the material distribution rings matched with the upper end electrode, the material distribution
The bottom of ring is fitted with the tight of the insulation board, and the inside of the material distribution rings is provided with the material distribution cavity of ring-type,
The outer circumference face of the material distribution rings is provided with the material charging aperture being connected with the material distribution cavity, the material point
Multiple material distribution discharging openings being connected with the material distribution cavity are evenly arranged with the inside circumference face of cloth ring；
The material distribution rings are sleeved on the bottom of the upper end electrode bus incoming end, its inside circumference face with it is described on
The material discharging area of annulus shape is formed between the outer wall of termination electrode, the bottom surrounding of the upper end electrode bus incoming end is set
There are the supporting part that it can be made to be placed on above the material distribution rings, the supporting part and the upper end electrode bus incoming end
It is fixedly connected, its bottom is fitted with the tight of the material distribution rings, the upper end electrode conducts electricity described in insertion end insertion
In lower end electrode in through hole, the material resistance of annulus shape is formed on its outer wall and the lower end electrode between the inwall of through hole
Heating chamber, the material resistance heating room is connected with the material discharging area；
The top of the upper end electrode, the bottom of the lower end electrode are equipped between flange, two flanges and are provided with
The connecting rod matched with them, the upper end electrode, the material distribution rings, the insulation board and the lower end electrode pass through
The flange is fixed together to form a composite entity with the connecting rod.
Raw material preheating pipe 5 is provided with the waste heat recovery tank 7, the side wall of the waste heat recovery tank 7, which is provided with, to be used to access
The perforate of pipeline, the top of the waste heat recovery tank 7 is provided with the gaseous impurities condensation-crystallization room 8 matched with it, the waste heat
The top of recycling can 7 is in funnel-form, and being connected with the gaseous impurities condensation-crystallization room 8, the gaseous impurities condensation-crystallization
The top of room 8 is in cone shape, the bottom of the waste heat recovery tank 7 provided with outlet, the raw material storage tank 1 by pipeline with it is described
The entrance connection of feedstock transportation pump 4, one end of the raw material preheating pipe 5 is by passing pipeline and the institute of the waste heat recovery tank 7
State the outlet of feedstock transportation pump 4, the other end is by passing the pipeline and the closed continuous stone of the waste heat recovery tank 7
The entrance connection of inkization electrothermal furnace 6, the purification gas reservoir 3 is connected by pipeline with the raw material preheating pipe 5, described lazy
Property gas reservoir 2 connected by pipeline with the raw material preheating pipe 5, the outlet of the closed continuous graphitization electrothermal furnace 6 leads to
Cross and penetrate the pipeline of the waste heat recovery tank 7 and connected with the inside of the waste heat recovery tank 7；
The heat-conducting oil heating coil pipe 17 matched with the raw material preheating pipe 5 is additionally provided with the waste heat recovery tank 7, it is described
Heat-conducting oil heating coil pipe 17 in the shape of a spiral, and is enclosed on the outer wall of the raw material preheating pipe 5, and the heat conduction oil tank 15 passes through pipe
Road is connected with the entrance of the heat conduction oil circulating pump 16, the outlet of the heat conduction oil circulating pump 16 by pipeline with it is described closed
The coolant inlet connection of continuous graphitization electrothermal furnace 6, the cooling liquid outlet of the closed continuous graphitization electrothermal furnace 6 passes through
Pipeline is connected with one end of the heat-conducting oil heating coil pipe 17, and the other end of the conduction oil coil pipe 17, which is provided with, to be used to outwardly carry
The conduction oil efferent duct 18 of supplying heat source, one end of the conduction oil efferent duct 18 passes through the waste heat recovery tank 7 and the heat conduction
Oily heating coil 17 is connected, and the other end is in communication with the outside, and the top of the heat conduction oil tank 15, which is provided with, to be used to be repeatedly circulated
The thermal oil return 19 of conduction oil；
The water cooling tank 10 includes being used for by the outer tank of cooling water and for the inner canister by intermediate products, the water
The bottom of cooling tower 21 is connected by pipeline with the water circulating pump 20, and the water circulating pump 20 passes through pipeline and the outer tank
Bottom is connected, the top of the outer tank connected by pipeline with the top of the water cooling tower 21, and the waste heat recovery tank 7 goes out
Mouthful connected by pipeline with the entrance of the intermediate products delivery pump 9, the outlet of the intermediate products delivery pump 9 by pipeline and
The top connection of the inner canister, the top of the gaseous impurities condensation-crystallization room 8 is connected by pipeline with the top of the inner canister,
The bottom of the inner canister is provided with outlet；
The vacuum jet pump 14 connected by pipeline with the top of the product vacuum filter tank 12, and the inner canister goes out
Mouth is connected by pipeline with the entrance of the cooling product delivery pump 11, and the outlet of the cooling product delivery pump 11 passes through pipeline
Connected with the top of the product vacuum filter tank 12, the bottom of the product vacuum filter tank 12 is provided with outlet, the product
The exit of vacuum filter tank 12 is provided with product autometering packaging machine 13；
The feedstock transportation pump 4, the intermediate products delivery pump 9, the cooling product delivery pump 11 are both preferably graphite
Plunger pump or other powder material conveying equipments.
One kind is using carbon granular materials high temperature continuous gas as described above purification with graphitization system to carbon particle
Material carries out purification and graphited technique, and it comprises the following steps：
A, to first pass through the raw material that carbon granular materials is delivered in the waste heat recovery tank 7 by the feedstock transportation pump 4 pre-
Preheated in heat pipe 5, preheated, obtained while purification is concomitantly introduced into raw material preheating pipe 5 with gas and inert gas
Carbon granular materials, purification gas and inert gas after preheating；
B, the carbon granular materials after the preheating, purification gas and inert gas passed through into the raw material preheating pipe again
5 are delivered to heating in the closed continuous graphitization electrothermal furnace 6, and graphitization is carried out to the carbon granular materials after the preheating
Processing, the heating-up temperature of the closed continuous graphitization electrothermal furnace 6 is more than 2800 degrees Celsius, and carbon granular materials realizes stone
Inkization is converted, at the same preferably make metallic compound impurity direct boiling in carbon granular materials or with the purification gas
Body is vaporized after chemically reacting, and is obtained after gaseous metal compound impurities, unnecessary purification gas, inert gas and graphitization
Pyrocarbon crude granule material, and the conduction oil in the heat conduction oil tank 15 flows through the closed continuous graphitization electrothermal furnace
After 6 heat absorption heatings, flow into the heat-conducting oil heating coil pipe 17 and proceed heating, then by the conduction oil efferent duct 18 to
The external world provides thermal source, then flows back to the heat conduction oil tank 15 by the thermal oil return 19；
C then by pipeline by the gaseous metal compound impurities, unnecessary purification gas, inert gas and graphite
Pyrocarbon crude granule material after change is delivered in the waste heat recovery tank 7 from the closed continuous graphitization electrothermal furnace 6
The natural cooling in the waste heat recovery tank 7 of the pyrocarbon crude granule material after gas solid separation, the graphitization is carried out, release
Heat is preheated to the raw material in the raw material preheating pipe 5, and the conduction oil in the heat-conducting oil heating coil pipe 17 is carried out again
Heating, while the outlet from the waste heat recovery tank 7 is delivered in intermediate products delivery pump 9 under gravity, obtains nature
Carbon granular materials after cooling；It is miscellaneous that the gaseous metal compound impurities enter the gaseous state by the waste heat recovery tank 7
Matter condensation-crystallization room 8 is condensed, and is crystallized in the gaseous impurities condensation-crystallization room 8, and the solid after crystallization can be from institute
State the bottom discharge of gaseous impurities condensation-crystallization room 8；The unnecessary purification gas, inert gas are cold by the gaseous impurities
The pipeline at the solidifying top of crystallisation chamber 8 is into the inner canister of the water cooling tank 10；
D, the carbon granular materials after the natural cooling is delivered to by the water by the intermediate products delivery pump 9 again
Cooled down in the inner canister of cooling tank 10, carbon granular materials, unnecessary purification gas and inert gas after being cooled down；
E then by the cooling product delivery pump 11 by the unnecessary purification gas of carbon granular materials after the cooling
Body and inert gas are delivered to the product vacuum filter tank 12 and carry out vacuum filter, the carbon granular materials after being filtered；
F, pack finally by the carbon granular materials after described 13 pairs of filterings of product autometering packaging machine,
Obtain purification and the carbon granular materials after graphitization.
The present invention introduces purification gas to obtain purer graphite products while material is inputted, and the purification is used
Gas is can under the high temperature conditions to be reacted with the metal impurities compound in material and vaporize metal impurities compound
Gas, during Flow of Goods and Materials, temperature is slowly being heated up, in suitable temperature range, and metal impurities compound is used with purification
Gas react and vaporize, reach remove impurity purpose.
Under the high temperature conditions, carbon can react with oxygen, in order to prevent electrode and protective layer and processed carbon particle
It is materials from oxidizing, it is necessary in stove formed anaerobic atmosphere, therefore, the present invention introduce indifferent gas again while raw material is inputted
Body, shields in the entire system, prevents the inwall of closed continuous graphitization electrothermal furnace in the present invention and is processed
Product is in oxidation at high temperatures, and inert gas will not produce pernicious gas because not reacted at high temperature with carbon, if selection
With nitrogen, will be reacted generation carbonitride toxic gas with carbon at high temperature, and people is caused harm.
What the present invention can be brought has the beneficial effect that：
1st, energy-conservation is realized
In heating process, electric current directly passes through coke powder resistance heating, it is not necessary to any additional resistance material and graphite earthenware
Crucible heating consumption electric energy.Processing one ton of product in theory needs power consumption 3700kwh, is calculated by the thermal efficiency 50%, with the present invention's
Equipment and technique, one ton of product power consumption is in 8000kwh or so, compared with present power consumption 160000kwh/t, saves energy half
More than.
2nd, environmental protection is realized
Whole heating process is run under closed environment, and the waste gas of generation is by downstream processes, without waste sludge discharge, greatly
Improve the graphited working environment of carbon particle fine powder greatly.
3rd, production efficiency is improved
A set of medium size installations of the present invention, produce graphitization negative electrode powder per year up to more than 10000 tons/year, and existing a set of
The yield of acheson furnace only has 4000 tons/year or so, it is seen that this product production efficiency is high, production capacity can be improved twice with
On.
4th, realize that whole-course automation is operated
Whole process at utmost reduces the labor intensity of workman without any artificial operation.
5th, use manpower and material resources sparingly
Whole system operation only needs to two or three people and can completed, and is fallen by Fourth Shift three, total number of persons also in 15 people or so, and
Existing graphitization workshop is, it is necessary to which 50-100 people's work, can save cost of labor more than 70%.Whole production process need not appoint
The complementary raw materials such as what other graphite crucibles, resistance material, insulation material, further save production cost.
6th, land use area is saved
The medium size installations floor space of the present invention only needs to 400 square metres or so, compared with existing system, Economization on land
More than 90%.
7th, waste heat is fully recycled
The heat that product cooling discharges in production process, can be reclaimed for raw material preheating and heating conduction oil, heating
Conduction oil can be used for the thermal source of other process units, and existing stove is impossible to realize heat recovery.
8th, maintenance cost is low, easy to maintenance.
The consumable accessory of whole system is exactly the high purity graphite protective case of two end electrodes, and this is the ablation rapid wear of whole system
Accessory, as long as periodic replacement, just energy holding meanss are normally run.
9th, construction investment is largely saved
Present acheson furnace whole system investment needs more than one hundred million members, and makes an investment in 1000 with the system Construction of the present invention
More than a set of ten thousand tons of graphitization production system, nearly ten times of investment reduction can be just built up within ten thousand.
10th, electricity consumption general power is significantly reduced
The existing whole electric power system of present acheson furnace, transformer that is dynamic then needing 1.5 ten thousand kilovolt-amperes, with this production
The system of product, due to material bed only several centimetres, resistance is very low in stove, can be with as long as secondary supply voltage more than 20 volt is just much of that
Installed capacity is equipped with according to production capacity, the typically power supply unit at 500-5000 kilovolt-amperes is just enough.
The present invention solve energy-saving and environmental protection in long-standing problem lithium battery carbon negative pole material graphitization process, continuous production,
The significant problems such as automation mechanized operation, reduction production cost, are the skills of the revolution of lithium battery Carbon anode powder graphitization process
Art progress, has great significance to the production cost for reducing new energy lithium battery, to promote human development new energy lithium battery
It will play an important role, the industry to whole lithium battery carbon negative pole material produces active influence.
The present invention is applicable not only to lithium battery carbon negative pole material graphitization process, and high temperature is needed to other carbon granular materials
Gas purification and graphited industrialized production are equally applicable, and the carbon granular materials for being less than 1mm for particle diameter carries out height
When warm gas purification and graphitization technique, best results of the invention.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (9)
1. a kind of carbon granular materials high temperature continuous gas purification and graphitization system, it is characterised in that it includes raw material storage tank
(1), feedstock transportation pump (4), purification gas reservoir (3), waste heat recovery tank (7) and closed continuous graphitization electrothermal furnace (6),
It is provided with raw material preheating pipe (5) in the waste heat recovery tank (7), the top of the waste heat recovery tank (7) is provided with to match with it
Gaseous impurities condensation-crystallization room (8), the top of the waste heat recovery tank (7) is condensed in funnel-form, and with the gaseous impurities
Crystallisation chamber (8) is connected, and the top of the gaseous impurities condensation-crystallization room (8) is in cone shape, the bottom of the waste heat recovery tank (7)
Portion is connected provided with outlet, the raw material storage tank (1) by pipeline with the entrance of the feedstock transportation pump (4), the raw material preheating
The one end of (5) is managed by passing the pipeline of the waste heat recovery tank (7) and the outlet of the feedstock transportation pump (4), it is another
End is connected by passing the pipeline of the waste heat recovery tank (7) with the entrance of the closed continuous graphitization electrothermal furnace (6), institute
State purification gas reservoir (3) to connect with the raw material preheating pipe (5) by pipeline, the closed continuous graphitization electrothermal furnace
(6) outlet is connected by penetrating the pipeline of the waste heat recovery tank (7) with the inside of the waste heat recovery tank (7).
2. carbon granular materials high temperature continuous gas purification according to claim 1 and graphitization system, it is characterised in that
It also includes intermediate products delivery pump (9), water cooling tank (10), water circulating pump (20) and water cooling tower (21), the water cooling
Tank (10) includes being used for by the outer tank of cooling water and for the inner canister by intermediate products, the bottom of the water cooling tower (21)
Connected by pipeline with the water circulating pump (20), the water circulating pump (20) is connected by pipeline with the bottom of the outer tank,
The top of the outer tank is connected by pipeline with the top of the water cooling tower (21), and the outlet of the waste heat recovery tank (7) leads to
Piping is connected with the entrance of the intermediate products delivery pump (9), the outlet of the intermediate products delivery pump (9) by pipeline with
The top connection of the inner canister, the bottom of the inner canister is provided with outlet.
3. carbon granular materials high temperature continuous gas purification according to claim 2 and graphitization system, it is characterised in that
It also includes inertial gas tank (2), and the inertial gas tank (2) is connected by pipeline with the raw material preheating pipe (5), institute
The top for stating gaseous impurities condensation-crystallization room (8) is connected by pipeline with the top of the inner canister.
4. carbon granular materials high temperature continuous gas purification according to claim 3 and graphitization system, it is characterised in that
It also includes cooling product delivery pump (11), product vacuum filter tank (12) and vacuum jet pump (14), the vacuum jet pump
(14) connected by pipeline with the top of the product vacuum filter tank (12), the outlet of the inner canister by pipeline with it is described cold
But the entrance connection of product delivery pump (11), the outlet of the cooling product delivery pump (11) passes through pipeline and the product vacuum
The top connection of filtering tank (12), the bottom of the product vacuum filter tank (12) is provided with outlet.
5. carbon granular materials high temperature continuous gas purification according to claim 4 and graphitization system, it is characterised in that
The exit of the product vacuum filter tank (12) is provided with product autometering packaging machine (13).
6. the purification of carbon granular materials high temperature continuous gas and graphitization system according to claim 4 or 5, its feature exist
In the feedstock transportation pump (4), the intermediate products delivery pump (9), the cooling product delivery pump (11) are graphite plunger
Pump.
7. carbon granular materials high temperature continuous gas purification according to claim 5 and graphitization system, it is characterised in that
The closed continuous graphitization electrothermal furnace (6) includes upper end electrode and the lower end electrode below the upper end electrode,
The inside of the upper end electrode is provided with cold in cooling chamber in the upper end electrode matched with the upper end electrode, the upper end electrode
But room, which is provided with the coolant inlet being in communication with the outside, the upper end electrode, is filled with coolant in cooling chamber, the upper end electricity
Pole is made up of the upper end electrode bus incoming end and upper end electrode that the are connected with each other insertion end that conducts electricity, and the upper end electrode conducts electricity insertion
End positioned at the upper end electrode bus incoming end bottom, the upper end electrode conduct electricity insertion end cross-sectional area from top to bottom by
It is decrescence small；
The lower end electrode is provided with the through hole that material is transported to bottom from its top, and the through hole includes interconnecting down
Through hole and graphitization material outlet on termination electrode, the graphitization material outlet are located at the lower section of through hole in the lower end electrode,
The cross-sectional area of through hole is gradually reduced from top to bottom in the lower end electrode, and is conducted electricity mutual of insertion end with the upper end electrode
Match somebody with somebody, the cross-sectional area of the graphitization material outlet is equal to or less than the cross-sectional area of via bottoms in the lower end electrode, institute
The inside for stating lower end electrode is provided with the lower end electrode cooling chamber matched with it, the lower end electrode cooling chamber filled with cooling
Liquid, the lower end electrode cooling chamber is communicated with cooling chamber and the lower end in the cooling liquid outlet in the external world, the upper end electrode
Cooling of electrode room is connected；
The top of the lower end electrode is provided with the insulation board matched with it, and the insulation board and the top of the lower end electrode are tight
Closely connected to close, the top of the insulation board is provided with the material distribution rings matched with the upper end electrode, the material distribution rings
Bottom is fitted with the tight of the insulation board, and the inside of the material distribution rings is provided with the material distribution cavity of ring-type, described
The outer circumference face of material distribution rings is provided with the material charging aperture being connected with the material distribution cavity, the material distribution rings
Inside circumference face on be evenly arranged with it is multiple be connected with the material distribution cavity materials distribution discharging openings；
The material distribution rings are sleeved on the bottom of the upper end electrode bus incoming end, its inside circumference face and upper end electricity
The material discharging area of annulus shape is formed between the outer wall of pole, the bottom of the upper end electrode bus incoming end is surrounded by energy
The supporting part for enough making it be placed on above the material distribution rings, the supporting part is fixed with the upper end electrode bus incoming end
Connection, its bottom fits with the tight of the material distribution rings, and the upper end electrode conducts electricity the insertion end insertion lower end
On electrode in through hole, the material resistance heating of annulus shape is formed on its outer wall and the lower end electrode between the inwall of through hole
Room, the material resistance heating room is connected with the material discharging area；
The top of the upper end electrode, the bottom of the lower end electrode are equipped between flange, two flanges and are provided with and it
The connecting rod that matches, the upper end electrode, the material distribution rings, the insulation board and the lower end electrode pass through described
Flange is fixed together to form a composite entity with the connecting rod.
8. carbon granular materials high temperature continuous gas purification according to claim 7 and graphitization system, it is characterised in that
It also includes being additionally provided with and the raw material in heat conduction oil tank (15) and heat conduction oil circulating pump (16), the waste heat recovery tank (7)
The heat-conducting oil heating coil pipe (17) that economizer bank (5) matches, the heat-conducting oil heating coil pipe (17) in the shape of a spiral, and is enclosed on described
On the outer wall of raw material preheating pipe (5), the heat conduction oil tank (15) passes through pipeline and the entrance of the heat conduction oil circulating pump (16)
Connection, the outlet of the heat conduction oil circulating pump (16) passes through pipeline and the cooling of the closed continuous graphitization electrothermal furnace (6)
Liquid entrance is connected, and the cooling liquid outlet of the closed continuous graphitization electrothermal furnace (6) passes through pipeline and the heat-conducting oil heating
One end connection of coil pipe (17), it is defeated that the other end of the conduction oil coil pipe (17) is provided with the conduction oil for being used to outwardly provide thermal source
Outlet pipe (18), one end of the conduction oil efferent duct (18) passes through the waste heat recovery tank (7) and the heat-conducting oil heating coil pipe
(17) connect, the other end is in communication with the outside, the top of the heat conduction oil tank (15), which is provided with, to be used to be repeatedly circulated conduction oil
Thermal oil return (19).
9. the carbon granular materials high temperature continuous gas purification described in a kind of utilization claim 8 is with graphitization system to carbon
Grain material carries out purification and graphited technique, it is characterised in that it comprises the following steps：
A, to first pass through the raw material that carbon granular materials is delivered in the waste heat recovery tank (7) by the feedstock transportation pump (4) pre-
Preheated, preheated while purification is concomitantly introduced into gas and inert gas in raw material preheating pipe (5) in heat pipe (5),
Carbon granular materials, purification gas and inert gas after being preheated；
B, the carbon granular materials after the preheating, purification gas and inert gas passed through into the raw material preheating pipe (5) again
It is delivered to heating, the heating of the closed continuous graphitization electrothermal furnace (6) in the closed continuous graphitization electrothermal furnace (6)
Temperature is more than 2800 degrees Celsius, graphitization processing is carried out to the carbon granular materials after the preheating, while making carbon particle
Metallic compound impurity direct boiling in material is vaporized after being chemically reacted with the purification gas, obtains gaseous state
Pyrocarbon crude granule material after metallic compound impurity, unnecessary purification gas, inert gas and graphitization, and the heat conduction
Conduction oil in oil tank (15) is flowed through after closed continuous graphitization electrothermal furnace (6) the heat absorption heating, flows into the heat conduction
Oily heating coil (17) proceeds heating, then outwardly provides thermal source by the conduction oil efferent duct (18), then pass through
The thermal oil return (19) flows back to the heat conduction oil tank (15)；
C then by pipeline by after the gaseous metal compound impurities, unnecessary purification gas, inert gas and graphitization
Pyrocarbon crude granule material be delivered to from the closed continuous graphitization electrothermal furnace (6) in the waste heat recovery tank (7)
Carry out the natural cooling in the waste heat recovery tank (7) of the pyrocarbon crude granule material after gas solid separation, the graphitization, release
Heat the raw material in the raw material preheating pipe (5) is preheated, to the conduction oil in the heat-conducting oil heating coil pipe (17)
Reheated, while the outlet from the waste heat recovery tank (7) is delivered to intermediate products delivery pump (9) under gravity
In, the carbon granular materials after natural cooling is obtained, the gaseous metal compound impurities are entered by the waste heat recovery tank (7)
Enter the gaseous impurities condensation-crystallization room (8) to be condensed, and crystallized in the gaseous impurities condensation-crystallization room (8), it is described
Unnecessary purification gas, inert gas pass through the pipeline at the top of the gaseous impurities condensation-crystallization room (8) to the water cooling
But in the inner canister of tank (10)；
D, the carbon granular materials after the natural cooling is delivered to by the water cooling by the intermediate products delivery pump (9) again
But cooled down in the inner canister of tank (10), carbon granular materials, unnecessary purification gas and inert gas after being cooled down；
E then by the cooling product delivery pump (11) by the unnecessary purification gas of carbon granular materials after the cooling
The product vacuum filter tank (12), which is delivered to, with inert gas carries out vacuum filter, the carbon granular materials after being filtered；
F, finally by the product autometering packaging machine (13) the carbon granular materials after the filtering is packed, i.e.,
Obtain purification and the carbon granular materials after graphitization.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613756A (en) * | 2004-11-15 | 2005-05-11 | 镇江焦化煤气集团有限公司 | Continuous production and apparatus for high-purity graphite carbon material |
| CN102530923A (en) * | 2010-12-08 | 2012-07-04 | 沈阳铝镁设计研究院有限公司 | High-temperature electric calcining system and method of carbon raw material |
| CN102557019A (en) * | 2011-12-27 | 2012-07-11 | 黑龙江科技学院 | Method and device for producing high-purity natural graphite |
| CN205023858U (en) * | 2015-10-14 | 2016-02-10 | 赵金文 | Continuous gas purification of carbon element granular material high temperature and graphitization system |
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2015
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613756A (en) * | 2004-11-15 | 2005-05-11 | 镇江焦化煤气集团有限公司 | Continuous production and apparatus for high-purity graphite carbon material |
| CN102530923A (en) * | 2010-12-08 | 2012-07-04 | 沈阳铝镁设计研究院有限公司 | High-temperature electric calcining system and method of carbon raw material |
| CN102557019A (en) * | 2011-12-27 | 2012-07-11 | 黑龙江科技学院 | Method and device for producing high-purity natural graphite |
| CN205023858U (en) * | 2015-10-14 | 2016-02-10 | 赵金文 | Continuous gas purification of carbon element granular material high temperature and graphitization system |
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