CN205023858U - Continuous gas purification of carbon element granular material high temperature and graphitization system - Google Patents
Continuous gas purification of carbon element granular material high temperature and graphitization system Download PDFInfo
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- CN205023858U CN205023858U CN201520798241.5U CN201520798241U CN205023858U CN 205023858 U CN205023858 U CN 205023858U CN 201520798241 U CN201520798241 U CN 201520798241U CN 205023858 U CN205023858 U CN 205023858U
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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
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Abstract
The utility model relates to a continuous gas purification of carbon element granular material high temperature and graphitization system, it includes the raw materials storage tank, the raw materials delivery pump, gaseous storage tank is used in the purification, waste heat recovery jar and closed continuous graphitization electric heater, be equipped with the raw materials economizer bank in the waste heat recovery jar, waste heat recovery tank deck portion is leaks hopper -shaped, and be equipped with the gaseous impurities condensation crystallization chamber rather than being linked together, the bottom of waste heat recovery jar is equipped with the export, raw materials storage tank and raw materials delivery pump entry intercommunication, the purification is with gaseous storage tank and raw materials economizer bank intercommunication, raw materials economizer bank one end and raw materials delivery pump export intercommunication, the other end and closed continuous graphitization electric heater entry intercommunication, export of closed continuous graphitization electric heater and waste heat recovery jar intercommunication, compared with the prior art, the utility model discloses it is easy and simple to handle, high -efficient, energy -concerving and environment -protective, can realize the purification of carbon element granular material high temperature and the serialization of graphitization and process to high temperature carbon element granular material's after the recycle graphitization waste heat preheats the raw materials.
Description
Technical field
The utility model relates to carbon materials graphitization processing field, particularly relate to a kind of carbon element particulate material high temperature continuous gas to purify and greying system, it is supporting and perfect to be that the carbon element particulate material high temperature continuous gas invented of same contriver is purified with greying electrothermal oven.
Background technology
Lithium-ion-power cell is the novel high-energy battery succeeded in developing in 20th century.Energy density is high, battery discharge platform is high, electric discharge steady because it has for this battery, and high and low temperature resistance is excellent, automatic discharging is very slow, and the advantages such as storage life is long, have been widely used in the middle of military and civilian electrical equipment.Along with the development of science and technology, produce the battery of all size, obtain being widely used in the every field such as various electrical equipment, digital electric, particularly it will become one of the major impetus power supply of 21 century electromobile, power tool, and will be applied in extensive energy storage, electrical network Ping Feng, and the high-tech such as man-made satellite, aerospace and military field widespread use.
Negative material is one of critical material of lithium ion battery, and carbonaceous material is people's early start studies and be applied to the material of lithium ion battery negative, is still subject to extensive concern so far.Carbon negative pole material conventional at present mainly contains natural graphite and people causes graphite.
Amorphous graphite and highly crystalline ordered graphitic and crystalline flake graphite two kinds is had in natural graphite.Natural graphite is high due to its degree of graphitization, and be particularly suitable for the de-/embedding of lithium ion, because natural graphite belongs to raw ore product, relative cost is lower, is one of emphasis of negative material research and development always.Natural graphite contains a lot of dirt on the other hand, although chemically purify to reach quite high purity, can produce a lot of problem, the efficiency of production is not high yet yet.Simple by the ultrahigh-temperature methods of purification of more than 2800 degree, production efficiency is also higher, and but because existing processing unit energy consumption is large, production cost is high, is also difficult to obtain uniform and stable hyperthermal environments simultaneously, constrains the Application and Development that becomes more meticulous of natural graphite.
Synthetic graphite is obtained through more than 3000 degree ultrahigh-temperature graphitization processing by easy graphitized carbon, and the synthetic graphite class material as lithium ion battery negative material mainly contains carbonaceous mesophase spherules graphite, graphite fibre, and other various graphitized carbons etc.What wherein people were familiar with the most is high-graphitized carbonaceous mesophase spherules, is called for short MCMB.Commercial high-graphitized MCMB has excellent cyclicity, is one of main negative material of using of current long lifetime small-scale lithium ion cell and power cell.When mesophase pitch carbon microspheres uses as lithium ion battery negative material, need to carry out about 3000 DEG C graphitization processing, this substantially increases the cost of mesophase pitch carbon microspheres undoubtedly, and pole is unfavorable for using widely.Therefore, how improving technique, reduce manufacturing cost and improve performance, be the major subjects of current MCMB negative material research.
No matter the high temperature purification of natural graphite, or the production of graphous graphite powder, all be unable to do without the ultrahigh-temperature working condition of about 3000 degree.The production of current domestic industry, the most widely used is the closed continuous graphitization electrothermal oven of Acheson.This type of furnace is open type galley body structure, produce for Graphite Electrodes the earliest, use it for now the carbon negative pole material producing lithium cell, airtight with carbon crucible splendid attire, carry out side by side vertical or horizontal, and fill metallurgical coke resistance material filling around the crucible of carbon negative pole material, be energized at the longitudinal direction two ends of body of heater, utilize the resistance heating of coke resistance material, finally make also to be produced resistance heating by heating crucible itself, reach the condition obtaining ultrahigh-temperature, realize the greying of carbon negative pole material in crucible.Thermoshield is carried out with heat-insulation and heat-preservation with auxiliary materials such as coke powder, carbon black, silica sand/coke/silicon carbide blend again in the periphery of combustion chamber.The defect of acheson furnace mainly contains:
1, acheson furnace is horizontal, unenclosed construction, and heat energy loss is serious, and institute's consuming electric power is 16000kwh/t by variable unit consumption, and product purity is not high;
2, body of heater is long for cooling time, and graphitizing process needs 2 ~ 7 days when electrified regulation, but wants the material in stove to naturally cool to the service temperature that can come out of the stove, and need the long period of about 2 weeks, production efficiency is low; Carrying out water spray forces cooling to shorten cooling time, but the evaporation environmental pollution impact of a large amount of water vapor is large, also easily because infiltration causes the product in stove to be oxidized;
3, product is heated inequality, and core temperature reaches 2600 degree (the graphited temperature of top grade graphite cathode powder must reach about 3000 degree), and temperature that is peripheral and two is much lower, causes product degree of graphitization uneven, quality instability;
4, the sulfurous gas that discharges in temperature-rise period of the furnace type structure of open type and other foreign gas cannot collect improvement, cause environmental pollution;
5, in process of cooling, waste heat cannot be recycled, and causes a large amount of energy dissipations;
6, take on stove manual operation, labour intensity is large, work under bad environment;
7, yield poorly, a set of medium-sized stove annual production about 4000 tons.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of easy and simple to handle, efficient, energy-conserving and environment-protective, can realizes carbon element particulate material serialization processing, the carbon element particulate material high temperature continuous gas of recoverable waste heat is purified and greying system.
The technical scheme that the utility model solves the problems of the technologies described above is as follows:
A kind of carbon element particulate material high temperature continuous gas is purified and greying system, it comprises raw material storage tank, feedstock transportation pump, purification gas reservoir, waste heat recovery tank and closed continuous graphitization electrothermal oven, raw material preheating pipe is provided with in described waste heat recovery tank, the top of described waste heat recovery tank is provided with the gaseous impurities condensation-crystallization room matched with it, the top of described waste heat recovery tank is in falling funnel-form, and be communicated with described gaseous impurities condensation-crystallization room, the top conically shape of described gaseous impurities condensation-crystallization room, the bottom of described waste heat recovery tank is provided with outlet, described raw material storage tank is communicated with by the entrance of pipeline with described feedstock transportation pump, one end of described raw material preheating pipe is communicated with described feedstock transportation pump outlet by the pipeline passing described waste heat recovery tank, the other end is communicated with the entrance of described closed continuous graphitization electrothermal oven by the pipeline passing described waste heat recovery tank, described purification gas reservoir is communicated with described raw material preheating pipe by pipeline, the outlet of described closed continuous graphitization electrothermal oven is communicated with the inside of described waste heat recovery tank by the pipeline penetrating described waste heat recovery tank.
Compared with prior art, the beneficial effects of the utility model are:
The utility model system operation is easy, efficiently, energy-conserving and environment-protective, the continuous prodution that carbon element particulate material high temperature purification and greying are processed can be realized, can make the metallic compound impurity that contains in carbon element particulate material rapidly and efficiently be vaporized into gaseous state, and by waste heat recovery tank and gaseous impurities condensation-crystallization room, gas solid separation is carried out to the carbon element particulate material after greying, metallic compound impurity in effective removal carbon element particulate material, obtain the carbon element particulate material after the higher greying of purity, whole system can carry out closure, prevent material dust from spreading and being mixed into external impurity, waste heat after can also recycling greying by waste heat recovery tank in carbon element particulate material carries out preheating to raw material.
On the basis of technique scheme, the utility model can also do following improvement.
As a kind of preferred implementation of the present utility model, it also comprises intermediates transferpump, water cooling tank, water circulating pump and water cooling tower, described water cooling tank comprises for the outer tank by water coolant with for the inner canister by intermediates, the bottom of described water cooling tower is communicated with described water circulating pump by pipeline, described water circulating pump is communicated with by the bottom of pipeline with described outer tank, the top of described outer tank is communicated with by the top of pipeline with described water cooling tower, the outlet of described waste heat recovery tank is communicated with by the entrance of pipeline with described intermediates transferpump, described intermediates conveying pump outlet is communicated with by the top of pipeline with described inner canister, the bottom of described inner canister is provided with outlet.
The beneficial effect of above-mentioned preferred version is adopted to be: utilize circulating water cooling system, cool the carbon element particulate material after greying, both environmental protection and energy saving, reduce costs, and can realize again the fast cooling of the carbon element particulate material after greying.
As another kind of preferred implementation of the present utility model, it also comprises inertial gas tank, and described inertial gas tank is communicated with described raw material preheating pipe by pipeline, and the top of described gaseous impurities condensation-crystallization room is communicated with by the top of pipeline with described inner canister.
The beneficial effect of above-mentioned preferred version is adopted to be: before raw material input raw material preheating pipe; rare gas element is introduced from inertial gas tank; such as argon gas etc.; can shield in the entire system; when preventing raw material in preheating or heat up in closed continuous graphitization electrothermal oven; the inwall of raw material and closed continuous graphitization electrothermal oven is oxidized under the high temperature conditions, and rare gas element does not at high temperature react with carbon, can not produce obnoxious flavour.
As another kind of preferred implementation of the present utility model, it also comprises chilled product transferpump, product vacuum filter tank and vacuum jet pump, described vacuum jet pump is communicated with by the top of pipeline with described product vacuum filter tank, the outlet of described inner canister is communicated with by the entrance of pipeline with described chilled product transferpump, described chilled product conveying pump outlet is communicated with by the top of pipeline with described product vacuum filter tank, and the bottom of described product vacuum filter tank is provided with outlet.
The beneficial effect of above-mentioned preferred version is adopted to be: to carry out vacuum filtration to product, the carbon element fine particle product after greying can be collected, can also remove in product and be mingled with residual unnecessary purification gas and rare gas element.
As another kind of preferred implementation of the present utility model, the exit of described product vacuum filter tank is provided with product autometering packaging machine.
Adopt the beneficial effect of above-mentioned preferred version to be: to purify and after product after greying carries out metering packing, use convenient, transport, carry more convenient.
As another kind of preferred implementation of the present utility model, described feedstock transportation pump, described intermediates transferpump, described chilled product transferpump are graphite ram pump.
The beneficial effect of above-mentioned preferred version is adopted to be: graphite ram pump is suitable for carrying graphite particle material more.
As another kind of preferred implementation of the present utility model, described closed continuous graphitization electrothermal oven comprises upper end electrode and is positioned at the lower end electrode below described upper end electrode, the inside of described upper end electrode is provided with cooling room in the upper end electrode that matches with described upper end electrode, in described upper end electrode, cooling room is provided with the cooling fluid entrance be in communication with the outside, cooling fluid is filled with in cooling room in described upper end electrode, described upper end electrode is made up of interconnective upper end electrode bus incoming end and the upper end electrode insertion end that conducts electricity, the described upper end electrode insertion end that conducts electricity is positioned at the bottom of described upper end electrode bus incoming end, the conduct electricity cross-sectional area of insertion end of described upper end electrode reduces from top to bottom gradually,
Described lower end electrode is provided with through hole material being transported to bottom from its top, described through hole comprises through hole and greying material outlet in the lower end electrode that interconnects, described greying material outlet is positioned at the below of through hole in described lower end electrode, in described lower end electrode, the cross-sectional area of through hole reduces from top to bottom gradually, and mutually mate with the described upper end electrode insertion end that conducts electricity, the cross-sectional area of described greying material outlet is equal to or less than the cross-sectional area of via bottoms in described lower end electrode, the inside of described lower end electrode is provided with the lower end electrode cooling room matched with it, cooling fluid is filled with in described lower end electrode cooling room, described lower end electrode cooling room is provided with and is communicated with extraneous cooling liquid outlet, in described upper end electrode, cooling room is connected with described lower end electrode cooling room,
The top of described lower end electrode is provided with the insulcrete matched with it, the tight of described insulcrete and described lower end electrode is fitted, the top of described insulcrete is provided with the material distribution rings matched with described upper end electrode, the bottom of described material distribution rings and the tight of described insulcrete are fitted, the inside of described material distribution rings is provided with the material distribution cavity of ring-type, the outer circumference face of described material distribution rings is provided with the material feeding mouth be connected with described material distribution cavity, the inside circumference face of described material distribution rings is evenly provided with material that multiple and described material distribution cavity is connected to distribute discharge port,
Described material distribution rings is sleeved on the bottom of described upper end electrode bus incoming end, the material discharging area of annulus shape is formed between its inside circumference face and outer wall of described upper end electrode, the bottom surrounding of described upper end electrode bus incoming end is provided with and it can be made to be placed on support portion above described material distribution rings, described support portion is fixedly connected with described upper end electrode bus incoming end, fit with the tight of described material distribution rings bottom it, the described upper end electrode insertion end that conducts electricity to be inserted in described lower end electrode in through hole, in its outer wall and described lower end electrode through hole inwall between form the material resistive heating room of annulus shape, described material resistive heating room is connected with described material discharging area,
The top of described upper end electrode, the bottom of described lower end electrode are equipped with flange, be provided with the union lever matched with them between two described flanges, described upper end electrode, described material distribution rings, described insulcrete and described lower end electrode are fixed together formation composite entity by described flange and described union lever.
The beneficial effect of above-mentioned preferred version is adopted to be: the processing and manufacturing of closed continuous graphitization electrothermal oven is simple, maintenance cost is low, easy to maintenance, graphited carbon element fine particle is treated to the input of material resistive heating room by material feeding mouth, rare gas element and can carry out with the metallic impurity compound in carbon element fine particle the purification gas that reacts under the high temperature conditions, upper end electrode is given again under inert atmosphere protection environment, lower end electrode is energized, electric current just can by the resistance heating of carbon element fine particle self, and along with the increase of time and electric current, the fine grain temperature of carbon element is made to reach about 3000 degree, thus complete greying and purification, then material resistive heating room is flowed out from greying material outlet, material below continues to be filled with material resistive heating room again, whole process continuous is carried out, and in heat-processed, consume electric energy without any need for external resistor material and plumbago crucible to heat, avoid waste of energy, coolant circulation system is coordinated to carry out cooling down to the upper end electrode of electrothermal oven and lower end electrode in production process, prevent electrode overheating, cooling fluid take away heat can also become thermal source required for other device fabrications, recycle, energy-efficient, use easy and simple to handle.
As another kind of preferred implementation of the present utility model, it also comprises thermal oil storage tank and heat conduction oil circulating pump, the heat-conducting oil heating coil pipe matched with described raw material preheating pipe is also provided with in described waste heat recovery tank, described heat-conducting oil heating coil pipe in the shape of a spiral, and be enclosed within the outer wall of described raw material preheating pipe, described thermal oil storage tank is communicated with by the entrance of pipeline with described heat conduction oil circulating pump, the outlet of described heat conduction oil circulating pump is communicated with by the cooling fluid entrance of pipeline with described closed continuous graphitization electrothermal oven, the cooling liquid outlet of described closed continuous graphitization electrothermal oven is communicated with by pipeline one end with described heat-conducting oil heating coil pipe, the other end of described thermal oil coil pipe is provided with the thermal oil output tube for outwardly providing thermal source, one end of described thermal oil output tube is communicated with described heat-conducting oil heating coil pipe through described waste heat recovery tank, the other end is in communication with the outside, the top of described thermal oil storage tank is provided with the thermal oil return using thermal oil for iterative cycles.
The beneficial effect of above-mentioned preferred version is adopted to be: this Heat-conduction oil circulation system is more perfect, system, energy-conservation, use easy and simple to handle, efficiently can not only carry out cooling down to the upper end electrode of electrothermal oven and lower end electrode rapidly, prevent electrode overheating, and the high temperature graphitization material that electrothermal oven is discharged is in process of cooling, the thermal oil in heat-conducting oil heating coil pipe can also be allowed to continue, and heat that the high-temperature material after absorbing greying discharges in process of cooling reheats, become the thermal source required for other device fabrications, recycle, make waste heat recovery system more perfect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model system;
In accompanying drawing, the list of parts representated by each label is as follows:
1, raw material storage tank, 2, inertial gas tank, 3, purification gas reservoir, 4, feedstock transportation pump, 5, raw material preheating pipe, 6, closed continuous graphitization electrothermal oven, 7, waste heat recovery tank, 8, gaseous impurities condensation-crystallization room, 9, intermediates transferpump, 10, water cooling tank, 11, chilled product transferpump, 12, product vacuum filter tank, 13, product autometering packaging machine, 14, vacuum jet pump, 15, thermal oil storage tank, 16, heat conduction oil circulating pump, 17, heat-conducting oil heating coil pipe, 18, thermal oil output tube, 19, thermal oil return, 20, water circulating pump, 21, water cooling tower.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
Embodiment
As shown in Figure 1, a kind of carbon element particulate material high temperature continuous gas is purified and greying system, and it comprises raw material storage tank 1, feedstock transportation pump 4, inertial gas tank 2, purification gas reservoir 3, waste heat recovery tank 7, closed continuous graphitization electrothermal oven 6, thermal oil storage tank 15, heat conduction oil circulating pump 16, intermediates transferpump 9, water cooling tank 10, water circulating pump 20, water cooling tower 21, chilled product transferpump 11, product vacuum filter tank 12 and vacuum jet pump 14.
Described closed continuous graphitization electrothermal oven 6 comprises upper end electrode and is positioned at the lower end electrode below described upper end electrode, the inside of described upper end electrode is provided with cooling room in the upper end electrode that matches with described upper end electrode, in described upper end electrode, cooling room is provided with the cooling fluid entrance be in communication with the outside, described upper end electrode is made up of interconnective upper end electrode bus incoming end and the upper end electrode insertion end that conducts electricity, the described upper end electrode insertion end that conducts electricity is positioned at the bottom of described upper end electrode bus incoming end, the conduct electricity cross-sectional area of insertion end of described upper end electrode reduces from top to bottom gradually,
Described lower end electrode is provided with through hole material being transported to bottom from its top, described through hole comprises through hole and greying material outlet in the lower end electrode that interconnects, described greying material outlet is positioned at the below of through hole in described lower end electrode, in described lower end electrode, the cross-sectional area of through hole reduces from top to bottom gradually, and mutually mate with the described upper end electrode insertion end that conducts electricity, the cross-sectional area of described greying material outlet is equal to or less than the cross-sectional area of via bottoms in described lower end electrode, the inside of described lower end electrode is provided with associated lower end electrode cooling room, described lower end electrode cooling room is provided with and is communicated with extraneous cooling liquid outlet, in described upper end electrode, cooling room is connected with described lower end electrode cooling room,
The top of described lower end electrode is provided with the insulcrete matched with it, the tight of described insulcrete and described lower end electrode is fitted, the top of described insulcrete is provided with the material distribution rings matched with described upper end electrode, the bottom of described material distribution rings and the tight of described insulcrete are fitted, the inside of described material distribution rings is provided with the material distribution cavity of ring-type, the outer circumference face of described material distribution rings is provided with the material feeding mouth be connected with described material distribution cavity, the inside circumference face of described material distribution rings is evenly provided with material that multiple and described material distribution cavity is connected to distribute discharge port,
Described material distribution rings is sleeved on the bottom of described upper end electrode bus incoming end, the material discharging area of annulus shape is formed between its inside circumference face and outer wall of described upper end electrode, the bottom surrounding of described upper end electrode bus incoming end is provided with and it can be made to be placed on support portion above described material distribution rings, described support portion is fixedly connected with described upper end electrode bus incoming end, fit with the tight of described material distribution rings bottom it, the described upper end electrode insertion end that conducts electricity to be inserted in described lower end electrode in through hole, in its outer wall and described lower end electrode through hole inwall between form the material resistive heating room of annulus shape, described material resistive heating room is connected with described material discharging area,
The top of described upper end electrode, the bottom of described lower end electrode are equipped with flange, be provided with the union lever matched with them between two described flanges, described upper end electrode, described material distribution rings, described insulcrete and described lower end electrode are fixed together formation composite entity by described flange and described union lever.
Raw material preheating pipe 5 is provided with in described waste heat recovery tank 7, the sidewall of described waste heat recovery tank 7 is provided with the perforate for access conduit, the top of described waste heat recovery tank 7 is provided with the gaseous impurities condensation-crystallization room 8 matched with it, the top of described waste heat recovery tank 7 is in falling funnel-form, and be communicated with described gaseous impurities condensation-crystallization room 8, the top conically shape of described gaseous impurities condensation-crystallization room 8, the bottom of described waste heat recovery tank 7 is provided with outlet, described raw material storage tank 1 is communicated with by the entrance of pipeline with described feedstock transportation pump 4, one end of described raw material preheating pipe 5 is by the outlet of the pipeline and described feedstock transportation pump 4 that pass described waste heat recovery tank 7, the other end is communicated with the entrance of described closed continuous graphitization electrothermal oven 6 by the pipeline passing described waste heat recovery tank 7, described purification gas reservoir 3 is communicated with described raw material preheating pipe 5 by pipeline, described inertial gas tank 2 is communicated with described raw material preheating pipe 5 by pipeline, the outlet of described closed continuous graphitization electrothermal oven 6 is communicated with the inside of described waste heat recovery tank 7 by the pipeline penetrating described waste heat recovery tank 7,
The heat-conducting oil heating coil pipe 17 matched with described raw material preheating pipe 5 is also provided with in described waste heat recovery tank 7, described heat-conducting oil heating coil pipe 17 in the shape of a spiral, and be enclosed within the outer wall of described raw material preheating pipe 5, described thermal oil storage tank 15 is communicated with by the entrance of pipeline with described heat conduction oil circulating pump 16, the outlet of described heat conduction oil circulating pump 16 is communicated with by the cooling fluid entrance of pipeline with described closed continuous graphitization electrothermal oven 6, the cooling liquid outlet of described closed continuous graphitization electrothermal oven 6 is communicated with by pipeline one end with described heat-conducting oil heating coil pipe 17, the other end of described thermal oil coil pipe 17 is provided with the thermal oil output tube 18 for outwardly providing thermal source, one end of described thermal oil output tube 18 is communicated with described heat-conducting oil heating coil pipe 17 through described waste heat recovery tank 7, the other end is in communication with the outside, the top of described thermal oil storage tank 15 is provided with the thermal oil return 19 using thermal oil for iterative cycles,
Described water cooling tank 10 comprises for the outer tank by water coolant with for the inner canister by intermediates, the bottom of described water cooling tower 21 is communicated with described water circulating pump 20 by pipeline, described water circulating pump 20 is communicated with by the bottom of pipeline with described outer tank, the top of described outer tank is communicated with by the top of pipeline with described water cooling tower 21, the outlet of described waste heat recovery tank 7 is communicated with by the entrance of pipeline with described intermediates transferpump 9, the outlet of described intermediates transferpump 9 is communicated with by the top of pipeline with described inner canister, the top of described gaseous impurities condensation-crystallization room 8 is communicated with by the top of pipeline with described inner canister, the bottom of described inner canister is provided with outlet,
Described vacuum jet pump 14 is communicated with by the top of pipeline with described product vacuum filter tank 12, the outlet of described inner canister is communicated with by the entrance of pipeline with described chilled product transferpump 11, the outlet of described chilled product transferpump 11 is communicated with by the top of pipeline with described product vacuum filter tank 12, the bottom of described product vacuum filter tank 12 is provided with outlet, and the exit of described product vacuum filter tank 12 is provided with product autometering packaging machine 13;
Described feedstock transportation pump 4, described intermediates transferpump 9, described chilled product transferpump 11 are all preferably graphite ram pump or other powder material handling equipments.
One utilizes carbon element particulate material high temperature continuous gas as above to purify and greying system carries out purification and graphited technique to carbon element particulate material, and it comprises the following steps:
A, be first delivered to carbon element particulate material by described feedstock transportation pump 4 in described waste heat recovery tank 7 raw material preheating pipe 5 in carry out preheating, purification gas is introduced in raw material preheating pipe 5 together with rare gas element simultaneously and carry out preheating, obtain the carbon element particulate material after preheating, purification gas and rare gas element;
B, again by the carbon element particulate material after described preheating, purification gas and rare gas element are delivered in described closed continuous graphitization electrothermal oven 6 by described raw material preheating pipe 5 and heat, graphitization processing is carried out to the carbon element particulate material after described preheating, the Heating temperature of described closed continuous graphitization electrothermal oven 6 is more than 2800 degrees Celsius, carbon element particulate material realizes greying and transforms, better make simultaneously the metallic compound impurity direct boiling in carbon element particulate material or with described purification gas generation chemical reaction after vaporize, obtain gaseous metal compound impurities, unnecessary purification gas, pyrocarbon crude granule material after rare gas element and greying, and the thermal oil in described thermal oil storage tank 15 flows through after described closed continuous graphitization electrothermal oven 6 absorbs heat and heat up, flow into described heat-conducting oil heating coil pipe 17 to proceed to heat up, then outwardly thermal source is provided by described thermal oil output tube 18, described thermal oil storage tank 15 is flowed back to again by described thermal oil return 19,
C, then by pipeline by described gaseous metal compound impurities, unnecessary purification gas, pyrocarbon crude granule material after rare gas element and greying is delivered in described waste heat recovery tank 7 and carries out gas solid separation from described closed continuous graphitization electrothermal oven 6, pyrocarbon crude granule material after described greying naturally cooling in described waste heat recovery tank 7, the heat of release carries out preheating to the raw material in described raw material preheating pipe 5, thermal oil in described heat-conducting oil heating coil pipe 17 is reheated, be delivered to intermediates transferpump 9 from the outlet of described waste heat recovery tank 7 under gravity simultaneously, obtain the carbon element particulate material after naturally cooling, described gaseous metal compound impurities enters described gaseous impurities condensation-crystallization room 8 by described waste heat recovery tank 7 and carries out condensation, and at described gaseous impurities condensation-crystallization room 8 intercrystalline, the solid after crystallization can be discharged from the bottom of described gaseous impurities condensation-crystallization room 8, described unnecessary purification gas, rare gas element by the Cemented filling at top, described gaseous impurities condensation-crystallization room 8 in the inner canister of described water cooling tank 10,
D, by described intermediates transferpump 9 the carbon element particulate material after described naturally cooling is delivered to described water cooling tank 10 again inner canister in cool, obtain cooled carbon element particulate material, unnecessary purification gas and rare gas element;
E, then by described chilled product transferpump 11, described cooled carbon element particulate material unnecessary purification gas and rare gas element are delivered to described product vacuum filter tank 12 and carry out vacuum filtration, obtain the carbon element particulate material after filtering;
F, finally by described product autometering packaging machine 13, the carbon element particulate material after described filtration to be packed, namely obtain purifying with greying after carbon element particulate material.
This technological operation is easy, efficiently, energy-conserving and environment-protective, the continuous prodution that carbon element particulate material high temperature purification and greying are processed can be realized, can make the metallic compound impurity that contains in carbon element particulate material rapidly and efficiently be vaporized into gaseous state, and by waste heat recovery tank and gaseous impurities condensation-crystallization room, gas solid separation is carried out to the carbon element particulate material after greying, metallic compound impurity in effective removal carbon element particulate material, obtain the carbon element particulate material after satisfactory greying, whole system can carry out closure, prevent material dust from spreading and being mixed into external impurity, and the heat of thermal oil release in heat-conducting oil heating coil pipe can be utilized to carry out preheating to raw material by the waste heat in carbon element particulate material after waste heat recovery tank recycling greying, the heat that the thermal oil in heat-conducting oil heating coil pipe can also be utilized to discharge provides thermal source for the external world.
The utility model is in order to obtain purer graphite products, purification gas is introduced while material input, this purification gas to carry out under the high temperature conditions reacting with the metallic impurity compound in material and to make the gas that metallic impurity compound is vaporized, during Flow of Goods and Materials, temperature is slowly heating up, in suitable temperature range, the gas of metallic impurity compound and purification reacts and vaporizes, and reaches the object of removing impurity.
Under the high temperature conditions, carbon and oxygen can react, be oxidized to prevent electrode and protective layer and processed carbon element particulate material, need the atmosphere forming anaerobic in stove, therefore, the utility model introduces rare gas element again while raw material input, shield in the entire system, prevent the inwall of closed continuous graphitization electrothermal oven in the utility model and processed product at oxidation at high temperatures, and rare gas element is not because at high temperature reacting with carbon, obnoxious flavour can not be produced, if selection nitrogen, at high temperature will react with carbon and generate carbonitride toxic gas, people is worked the mischief.
The beneficial effect that the utility model can bring is:
1, realize energy-conservation
In heat-processed, electric current directly by coke powder resistance heating, adds heat rejection electric energy without any need for additional resistance material and plumbago crucible.Process one ton of product needed power consumption 3700kwh in theory, calculate, use equipment and process of the present utility model by thermo-efficiency 50%, one ton of product power consumption, at about 8000kwh, compared with present power consumption 160000kwh/t, saves the energy over half.
2, environmental protection is realized
Whole heat-processed is run under airtight environment, and the waste gas of generation, by downstream processing, does not have waste sludge discharge, substantially improves the graphited Working environment of carbon granule fine powder.
3, enhance productivity
A set of medium size installations of the present utility model, produce greying negative electrode powder per year and can reach more than 10000 tons/year, and the output of existing a set of acheson furnace only has about 4000 tons/year, this products production efficiency is high as seen, can improve more than production capacity twice.
4, whole-course automation operation is realized
Whole process, without the need to any manual operation, at utmost reduces the labour intensity of workman.
5, use manpower and material resources sparingly
Whole system operation only needs two or three people just can complete, and fall by Fourth Shift three, total number of persons is also about 15 people, and existing greying workshop, need 50-100 people to work, cost of labor more than 70% can be saved.Whole production process, without the need to any other the complementary raw material such as plumbago crucible, resistance material, insulation material, saves production cost further.
6, land use area is saved
Medium size installations floor space of the present utility model only needs 400 square meter, compared with existing system, and Economization on land more than 90%.
7, waste heat is fully recycled
The heat of product cooling release in production process, can reclaim for raw material preheating and heating thermal oil, the thermal oil of heating may be used for the thermal source of other production equipments, and existing stove impossible realize heat recovery.
8, maintenance cost is low, easy to maintenance.
The consumable accessory of whole system is exactly the high purity graphite protective sleeve of two end electrodes, and this is the ablation rapid wear accessory of whole system, as long as periodic replacement, just can normally run by holding device.
9, construction investment is saved in a large number
Present acheson furnace whole system investment needs more than one hundred million unit, and uses system Construction of the present utility model to make an investment in just can to build up within 1,000 ten thousand the greying production system of more than a set of ten thousand tons, investment reduction nearly ten times.
10, significantly electricity consumption total power is reduced
The whole power supply system of existing present acheson furnace, dynamic then need the transformer of 1.5 ten thousand kilovolt-amperes, use the system of this product, due to material bed only several centimetres, stove internal resistance is very low, as long as secondary service voltage more than 20 volt is just much of that, can be equipped with installed capacity according to production capacity, the power-supply unit generally at 500-5000 kilovolt-ampere is just enough.
The utility model solves the significant problem such as energy-saving and environmental protection, continuous seepage, automated operation, reduction production cost in long-standing problem lithium cell carbon negative pole material graphitization process, it is the technical progress of the revolution of lithium cell Carbon anode powder graphitization process, the production cost reducing new forms of energy lithium cell is had great significance, to play an important role for promoting human development new forms of energy lithium cell, active influence will be produced to the industry of whole lithium cell carbon negative pole material.
The utility model is not only applicable to lithium cell carbon negative pole material graphitization process, high-temperature gas purification and graphited suitability for industrialized production is needed to be suitable for too to other carbon element particulate material, and for the carbon element particulate material that particle diameter is less than 1mm carry out high-temperature gas purify and graphitization technique time, best results of the present utility model.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a carbon element particulate material high temperature continuous gas is purified and greying system, it is characterized in that, it comprises raw material storage tank (1), feedstock transportation pump (4), purify with gas reservoir (3), waste heat recovery tank (7) and closed continuous graphitization electrothermal oven (6), raw material preheating pipe (5) is provided with in described waste heat recovery tank (7), the top of described waste heat recovery tank (7) is provided with the gaseous impurities condensation-crystallization room (8) matched with it, the top of described waste heat recovery tank (7) is in falling funnel-form, and be communicated with described gaseous impurities condensation-crystallization room (8), the top conically shape of described gaseous impurities condensation-crystallization room (8), the bottom of described waste heat recovery tank (7) is provided with outlet, described raw material storage tank (1) is communicated with by the entrance of pipeline with described feedstock transportation pump (4), one end of described raw material preheating pipe (5) is by the outlet of the pipeline and described feedstock transportation pump (4) that pass described waste heat recovery tank (7), the other end is communicated with the entrance of described closed continuous graphitization electrothermal oven (6) by the pipeline passing described waste heat recovery tank (7), described purification gas reservoir (3) is communicated with described raw material preheating pipe (5) by pipeline, the outlet of described closed continuous graphitization electrothermal oven (6) is communicated with the inside of described waste heat recovery tank (7) by the pipeline penetrating described waste heat recovery tank (7).
2. carbon element particulate material high temperature continuous gas according to claim 1 is purified and greying system, it is characterized in that, it also comprises intermediates transferpump (9), water cooling tank (10), water circulating pump (20) and water cooling tower (21), described water cooling tank (10) comprises for the outer tank by water coolant with for the inner canister by intermediates, the bottom of described water cooling tower (21) is communicated with described water circulating pump (20) by pipeline, described water circulating pump (20) is communicated with by the bottom of pipeline with described outer tank, the top of described outer tank is communicated with by the top of pipeline with described water cooling tower (21), the outlet of described waste heat recovery tank (7) is communicated with by the entrance of pipeline with described intermediates transferpump (9), the outlet of described intermediates transferpump (9) is communicated with by the top of pipeline with described inner canister, the bottom of described inner canister is provided with outlet.
3. carbon element particulate material high temperature continuous gas according to claim 2 is purified and greying system, it is characterized in that, it also comprises inertial gas tank (2), described inertial gas tank (2) is communicated with described raw material preheating pipe (5) by pipeline, and the top of described gaseous impurities condensation-crystallization room (8) is communicated with by the top of pipeline with described inner canister.
4. carbon element particulate material high temperature continuous gas according to claim 3 is purified and greying system, it is characterized in that, it also comprises chilled product transferpump (11), product vacuum filter tank (12) and vacuum jet pump (14), described vacuum jet pump (14) is communicated with by the top of pipeline with described product vacuum filter tank (12), the outlet of described inner canister is communicated with by the entrance of pipeline with described chilled product transferpump (11), the outlet of described chilled product transferpump (11) is communicated with by the top of pipeline with described product vacuum filter tank (12), the bottom of described product vacuum filter tank (12) is provided with outlet.
5. carbon element particulate material high temperature continuous gas according to claim 4 is purified and greying system, and it is characterized in that, the exit of described product vacuum filter tank (12) is provided with product autometering packaging machine (13).
6. the carbon element particulate material high temperature continuous gas according to claim 4 or 5 is purified and greying system, it is characterized in that, described feedstock transportation pump (4), described intermediates transferpump (9), described chilled product transferpump (11) are graphite ram pump.
7. carbon element particulate material high temperature continuous gas according to claim 5 is purified and greying system, it is characterized in that, described closed continuous graphitization electrothermal oven (6) comprises upper end electrode and is positioned at the lower end electrode below described upper end electrode, the inside of described upper end electrode is provided with cooling room in the upper end electrode that matches with described upper end electrode, in described upper end electrode, cooling room is provided with the cooling fluid entrance be in communication with the outside, cooling fluid is filled with in cooling room in described upper end electrode, described upper end electrode is made up of interconnective upper end electrode bus incoming end and the upper end electrode insertion end that conducts electricity, the described upper end electrode insertion end that conducts electricity is positioned at the bottom of described upper end electrode bus incoming end, the conduct electricity cross-sectional area of insertion end of described upper end electrode reduces from top to bottom gradually,
Described lower end electrode is provided with through hole material being transported to bottom from its top, described through hole comprises through hole and greying material outlet in the lower end electrode that interconnects, described greying material outlet is positioned at the below of through hole in described lower end electrode, in described lower end electrode, the cross-sectional area of through hole reduces from top to bottom gradually, and mutually mate with the described upper end electrode insertion end that conducts electricity, the cross-sectional area of described greying material outlet is equal to or less than the cross-sectional area of via bottoms in described lower end electrode, the inside of described lower end electrode is provided with the lower end electrode cooling room matched with it, cooling fluid is filled with in described lower end electrode cooling room, described lower end electrode cooling room is provided with and is communicated with extraneous cooling liquid outlet, in described upper end electrode, cooling room is connected with described lower end electrode cooling room,
The top of described lower end electrode is provided with the insulcrete matched with it, the tight of described insulcrete and described lower end electrode is fitted, the top of described insulcrete is provided with the material distribution rings matched with described upper end electrode, the bottom of described material distribution rings and the tight of described insulcrete are fitted, the inside of described material distribution rings is provided with the material distribution cavity of ring-type, the outer circumference face of described material distribution rings is provided with the material feeding mouth be connected with described material distribution cavity, the inside circumference face of described material distribution rings is evenly provided with material that multiple and described material distribution cavity is connected to distribute discharge port,
Described material distribution rings is sleeved on the bottom of described upper end electrode bus incoming end, the material discharging area of annulus shape is formed between its inside circumference face and outer wall of described upper end electrode, the bottom surrounding of described upper end electrode bus incoming end is provided with and it can be made to be placed on support portion above described material distribution rings, described support portion is fixedly connected with described upper end electrode bus incoming end, fit with the tight of described material distribution rings bottom it, the described upper end electrode insertion end that conducts electricity to be inserted in described lower end electrode in through hole, in its outer wall and described lower end electrode through hole inwall between form the material resistive heating room of annulus shape, described material resistive heating room is connected with described material discharging area,
The top of described upper end electrode, the bottom of described lower end electrode are equipped with flange, be provided with the union lever matched with them between two described flanges, described upper end electrode, described material distribution rings, described insulcrete and described lower end electrode are fixed together formation composite entity by described flange and described union lever.
8. carbon element particulate material high temperature continuous gas according to claim 7 is purified and greying system, it is characterized in that, it also comprises thermal oil storage tank (15) and heat conduction oil circulating pump (16), the heat-conducting oil heating coil pipe (17) matched with described raw material preheating pipe (5) is also provided with in described waste heat recovery tank (7), described heat-conducting oil heating coil pipe (17) in the shape of a spiral, and be enclosed within the outer wall of described raw material preheating pipe (5), described thermal oil storage tank (15) is communicated with by the entrance of pipeline with described heat conduction oil circulating pump (16), the outlet of described heat conduction oil circulating pump (16) is communicated with by the cooling fluid entrance of pipeline with described closed continuous graphitization electrothermal oven (6), the cooling liquid outlet of described closed continuous graphitization electrothermal oven (6) is communicated with by pipeline one end with described heat-conducting oil heating coil pipe (17), the other end of described thermal oil coil pipe (17) is provided with the thermal oil output tube (18) for outwardly providing thermal source, one end of described thermal oil output tube (18) is communicated with described heat-conducting oil heating coil pipe (17) through described waste heat recovery tank (7), the other end is in communication with the outside, the top of described thermal oil storage tank (15) is provided with the thermal oil return (19) using thermal oil for iterative cycles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520798241.5U CN205023858U (en) | 2015-10-14 | 2015-10-14 | Continuous gas purification of carbon element granular material high temperature and graphitization system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520798241.5U CN205023858U (en) | 2015-10-14 | 2015-10-14 | Continuous gas purification of carbon element granular material high temperature and graphitization system |
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| CN205023858U true CN205023858U (en) | 2016-02-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197914A (en) * | 2015-10-14 | 2015-12-30 | 赵金文 | System and process for high-temperature continuous gas purification and graphitization of carbon particle materials |
| CN108050848A (en) * | 2017-11-17 | 2018-05-18 | 唐红艳 | A kind of continuous electric forge furnace of high temperature |
-
2015
- 2015-10-14 CN CN201520798241.5U patent/CN205023858U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197914A (en) * | 2015-10-14 | 2015-12-30 | 赵金文 | System and process for high-temperature continuous gas purification and graphitization of carbon particle materials |
| CN105197914B (en) * | 2015-10-14 | 2017-10-24 | 赵金文 | Carbon granular materials high temperature continuous gas is purified and graphitization system and technique |
| CN108050848A (en) * | 2017-11-17 | 2018-05-18 | 唐红艳 | A kind of continuous electric forge furnace of high temperature |
| CN108050848B (en) * | 2017-11-17 | 2019-12-03 | 唐红艳 | A kind of continuous electric forge furnace of high temperature |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160210 Effective date of abandoning: 20171024 |
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