CN101817523A - Graphite purification and graphitizable high temperature vertical continuous induction heating furnace - Google Patents
Graphite purification and graphitizable high temperature vertical continuous induction heating furnace Download PDFInfo
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- CN101817523A CN101817523A CN200910042891A CN200910042891A CN101817523A CN 101817523 A CN101817523 A CN 101817523A CN 200910042891 A CN200910042891 A CN 200910042891A CN 200910042891 A CN200910042891 A CN 200910042891A CN 101817523 A CN101817523 A CN 101817523A
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Abstract
The invention relates to a graphite purification and graphitizable high temperature vertical continuous induction heating furnace, comprising a furnace body, a hearth, an induction heating coil, an observation window device, a material inlet device, a material outlet device and the like. The heater furnace is in a vertical structure and adopts a continuous working mode and induction heating; the highest use temperature is 3000 DEG C; the hearth is a cylindrical space, the material inlet device is connected above the hearth while the material outlet device is connected below the hearth; the materal enters into the hearth under the coordinated action of the material inlet device and the material outlet device, falls down and passes through the hearth at an even speed; ash content and volatile matter content in the material are changed into volatile substances under the action of hearth temperature and purified gas in the temperature environment; and the volatile substances are discharged out of the furnace from a discharge pipe under the action of high temperature reaction pressure and scavenge gas, thus realizing continuous purification or continuous graphitizable process by one step. The induction heating furnace can make up for the insufficiencies of hydrofluoric acid wet process purification, and is characterized by high efficiency, low energy consumption and environment protection.
Description
Technical field
The present invention relates to a kind of induction heater, particularly a kind of can the realization to continuous purifying technique of particulate state natural graphite and the high temperature vertical continuous induction heating furnace that can realize the particulate state natural graphite is carried out the continuous graphite metallization processes.
Technical background
Natural micro crystal graphite (is commonly called as amorphous graphite, academicly claim aphanitic graphite) be one of advantage Mineral resources of China, to compare micro crystal graphite purification techniques difficulty bigger with natural flake graphite (also claiming phanerocrystalline graphite or crystalloid graphite), also less to the research of natural micro crystal graphite both at home and abroad, though domesticly also can purify on a small quantity, but the method that adopts is the hydrofluoric acid wet processing mostly, has complex process, cost height, environmental pollution is serious, the rate of recovery is low, the wasting of resources is bigger shortcoming.The purification of crystalline flake graphite also is based on the hydrofluoric acid wet processing, though can reach industrialization production, has complex process, cost height, environmental pollution is serious, the rate of recovery is low, the wasting of resources is bigger shortcoming equally.High temperature purification technology can remedy the deficiency of hydrofluoric acid wet purification, has the characteristics of high-level efficiency, less energy-consumption, environmental protection.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, a kind of high temperature vertical continuous induction heating furnace that adopts one step of thermal process purification particulate state natural graphite and realize granular graphite is carried out the continuous graphite metallization processes is provided.
Technical scheme of the present invention: a kind of graphite is purified and graphitizable high temperature vertical continuous induction heating furnace is a vertical structure, production work is made as continuously-running duty, maximum operation (service) temperature is 3000 ℃, type of heating is an induction heating, and heating target is the particulate state battery graphite cathode material after granular graphite (comprising natural graphite particles and synthetic graphite particle) and shaping coat.
The process furnace burner hearth is a vertical type cylinder body space, the middle part is the heating zone, the bottom is the water cooling district, the burner hearth top connects feed system, the below connects discharge system, material enters burner hearth under feed system and discharge system coordinative role, fall and pass through burner hearth with uniform acceleration, ash in the material and achromachia part become volatile matter under the purified gases effect under fire box temperature effect and the temperature environment, outside delivery pipe was discharged to stove, realized purifying continuously or the continuous graphite metallization processes by a step under pyroreaction air pressure and the effect of cleaning gas for this volatile matter.
This high temperature vertical continuous induction heating furnace comprises feeding unit, body of heater, burner hearth, load coil, observation window device, feet and drawing mechanism, it is characterized in that:
Described graphite is purified and graphitizable high temperature vertical continuous induction heating furnace is a vertical structure, its body of heater is made of the vertical type cylinder ladle furnace body of the water through sandwich structure that communicates with each other base, urceolus and bell, base and bell respectively are provided with centre hole, and body of heater is to be fixed on the feet by base;
Described burner hearth is the burner hearth of a vertical type cylinder body space, the burner hearth upper end is provided with T shape flange cover, T shape flange cover passes the bell centre hole and extends the burner hearth internal upper part on it, its burner hearth lower end is provided with down T shape flange cover, following T shape flange is arranged with water(-cooling) jacket, water(-cooling) jacket is fixed on the below of burner hearth, boiler tube, and following T shape flange cover passes water(-cooling) jacket successively and base is communicated with burner hearth, and following T shape flange puts and is provided with gas and chews; Boiler tube lower end on the burner hearth is arranged in the base in the heart by retaining ring, and touch with the bell central hole mutually by gasket the upper end; Thermal insulation layer is set and to the load coil by the independent current source power supply of boiler tube heating on the boiler tube periphery, its thermal insulation layer is made up of inner thermal insulating layer and external thermal insulation and cover plate, and the quantity of load coil is 1～2;
Last T shape flange cover in the described burner hearth is communicated with feeding unit and observation window device respectively by threeway, and T shape flange cover is communicated with drawing mechanism under the burner hearth;
Described body of heater is provided with delivery pipe, temperature measuring equipment and one and gives device of air, its delivery pipe evenly is obliquely installed along the body of heater circumference, to be delivery pipe pass body of heater, external thermal insulation, inner thermal insulating layer and boiler tube successively along the body of heater circumference communicates with burner hearth and makes it to form the outside discharge structure that is inclined upwardly, temperature measuring equipment passes body of heater, external thermal insulation and inner thermal insulating layer successively from body of heater one side and touches mutually with furnace tube outer wall, and the measured temperature of described temperature measuring equipment is as the technology reference value.Passing body of heater, external thermal insulation inner thermal insulating layer and boiler tube to device of air successively from body of heater one side communicates with burner hearth; The described quantity that is arranged on the delivery pipe on the body of heater is more than 1～2 group, and its every group is two above delivery pipes that are uniformly distributed along the circumference, and the temperature measuring equipment quantity that is arranged on the body of heater is 1～2.
Base, urceolus, bell all constitute stainless steel sandwich structure, water flowing cooling in the interlayer, and urceolus is welded on the base, and base is provided with centre hole, and centre hole communicates with boiler tube, and bell is connected with outer drum flange, and bell is provided with centre hole.
Burner hearth is a vertical type cylinder body space, cooling jacket and interbedded water cold type body of heater all are connected with water coolant, the burner hearth top connects feeding unit, the below connects drawing mechanism, material enters burner hearth under feeding unit and drawing mechanism coordinative role, fall and pass through burner hearth with uniform acceleration, ash in the material and achromachia part become volatile matter under the purified gases effect under fire box temperature effect and the temperature environment, this volatile matter under pyroreaction air pressure and cleaning gas effect outside delivery pipe is discharged to stove.
The quantity of load coil is 1～2; This process furnace is as adopting two load coils, promptly two ruhmkorff coils are two water cooling coils independent of each other, by two cover independent current source power supplies, two load coil while furnace tubings make burner hearth produce working temperature, with the granular graphite material in the heating furnace, the working temperature of two load coils is independent adjustable, boiler tube is by the retaining ring centre of location, and is concentric to guarantee with ruhmkorff coil, homogeneous heating.
Attemperator on this boiler tube is made up of external thermal insulation, inner thermal insulating layer, cover plate, external thermal insulation is the oxide compound cylindrical shell, inner thermal insulating layer is a carbon black, its carbon black thermal insulation layer is filled between oxide compound cylindrical shell thermal insulation layer and the boiler tube, and the effect of cover plate is to prevent from that carbon black is leaked to cause defective insulation on the ruhmkorff coil.
Being arranged on the body of heater to device of air among the present invention communicates with burner hearth, and purified gases enters the burner hearth zone of load coil below, high-temperature zone from give device of air and up direction is mobile.
Shielding gas (or cleaning gas) is to chew and feed from being welded on down gas that T shape flange puts; flow in the burner hearth by following T shape flange cover; flow from the bottom up in order to ensure burner hearth gas, whenever last valve in the drawing mechanism and lower valve have at least one to be in closing condition.
Delivery pipe in this process furnace is to be to be discharged into outside the stove by delivery pipe with the waste gas in the burner hearth, ash and achromachia part, enters atmosphere after purification system is handled.
Described observation window device by sight glass, head light, gas chew, valve forms, and can observe height and the blanking situation of material in burner hearth by observation window device, so that velocity of flow and the tightness of tracking material in burner hearth.During observation valve and head light are opened, the unlatching that cleaning gas is chewed with valve from gas flows into burner hearth, observes the visual field with cleaning, observes finish valve-off and head light, and cleaning gas is also closed with valve.
This process furnace material enters burner hearth under feeding unit and drawing mechanism coordinative role, fall and pass through burner hearth with uniform acceleration, ash in the material and achromachia part become volatile matter under the purified gases effect under fire box temperature effect and the temperature environment, this volatile matter under pyroreaction air pressure and cleaning gas effect outside delivery pipe is discharged to stove.This graphite purification high temperature vertical continuous induction heating furnace has remedied the deficiency of hydrofluoric acid wet purification, has the characteristics of high-level efficiency, less energy-consumption, environmental protection.
Description of drawings
Accompanying drawing is structural representation of the present invention (two load coil structure); Among the figure: 1-hopper, 2-transfer lime, 3-retarding mechanism, 4-sight glass, the 5-head light, the 6-inspection section, 7-gas is chewed, the 8-valve, the last T shape of 9-flange cover, 10-gasket, 11-bell, 12-cover plate, the 13-delivery pipe, 14-urceolus, 15-external thermal insulation, 16-load coil, the 17-inner thermal insulating layer, 18-temperature measuring equipment, 19-boiler tube, 20-burner hearth, 21-gives device of air, 22-retaining ring, 23-base, 24-water(-cooling) jacket, T shape flange cover under the 25-, the 26-feet, 27-gas is chewed, the 28-output tube, 29-retarding mechanism, 30-valve, the 31-corrugated tube, the 32-vacuum valve, 33-gas is chewed, the 34-discharge bucket, 35-valve, 36-discharge port
Embodiment
Referring to accompanying drawing, a kind of graphite is purified and graphitizable high temperature vertical continuous induction heating furnace, comprises feeding unit, body of heater, burner hearth 20, load coil 16, observation window device, feet 26 and drawing mechanism, it is characterized in that:
Described graphite is purified and graphitizable high temperature vertical continuous induction heating furnace is a vertical structure, its body of heater is made of the vertical type cylinder ladle furnace body of the water through sandwich structure that communicates with each other base 23, urceolus 14 and bell 11, base 23 and bell 11 respectively are provided with centre hole, and body of heater is to be fixed on the feet 26 by base;
Described burner hearth 20 is the burner hearth of a vertical type cylinder body space, burner hearth 20 upper ends are provided with T shape flange cover 9, last T shape flange cover 9 passes bell 11 centre holes and extends burner hearth 20 internal upper parts, and burner hearth 20 lower ends are provided with down T shape flange cover 25, and following T shape flange cover 25 is provided with water(-cooling) jacket 24.Water(-cooling) jacket 24 is fixed on burner hearth 20, boiler tube 19 belows, and following T shape flange cover 25 passes water(-cooling) jacket 24 successively and base 23 is communicated with burner hearth 20, and following T shape flange cover 25 is provided with gas and chews 27; Boiler tube 19 lower ends on the burner hearth are arranged in the base 23 in the heart by retaining ring 22, and touch with bell 11 central hole mutually by gasket 10 upper end; The load coil 16 that thermal insulation layer is set on boiler tube 19 peripheries and boiler tube is heated by the independent current source power supply, its thermal insulation layer is made up of inner thermal insulating layer 17 and external thermal insulation 15 and cover plate 12, inner thermal insulating layer 17 in the thermal insulation layer is the carbon black thermal insulation layer, external thermal insulation 15 is an oxide compound cylindrical shell thermal insulation layer, and its carbon black thermal insulation layer is filled between oxide compound cylindrical shell thermal insulation layer and the boiler tube 19; The effect of cover plate 12 is to prevent from that carbon black is leaked to cause defective insulation on the ruhmkorff coil.
Be provided with two load coils 16 in this continuous induction heating furnace; Promptly two load coils 16 are the water cooling coils independent of each other of the adjustable power of two cover independent current sources power supplies.Described two load coils 16 are two water cooling coils independent of each other, by two cover independent current source power supplies, two 16 while of load coil furnace tubings 19, make burner hearth 20 produce working temperature, with the granular graphite material in the heating furnace 20, the load coil 16 on the boiler tube top work area of being heated is set to cold zone generally speaking, the work area that the load coil 16 of boiler tube below is heated is set to the high-temperature zone, the working temperature of cold zone and high-temperature zone is independent adjustable, boiler tube 19 is by retaining ring 22 centres of location, concentric to guarantee with ruhmkorff coil, homogeneous heating.
Last T shape flange cover 9 in the described burner hearth 20 is communicated with feeding unit and observation window device respectively by threeway, and 20 times T shapes of burner hearth flange overlaps and is communicated with drawing mechanism;
Described body of heater is provided with delivery pipe 13, temperature measuring equipment 18 and gives device of air 21, its delivery pipe 13 evenly is obliquely installed along the body of heater circumference, to be delivery pipe 13 pass body of heater, external thermal insulation 15, inner thermal insulating layer 17 and boiler tube 19 successively along the body of heater circumference communicates with burner hearth 20 and makes it to form the outside discharge structure that is inclined upwardly, temperature measuring equipment 18 passes body of heater, external thermal insulation 15 and inner thermal insulating layer 17 successively from body of heater one side and touches mutually with boiler tube 19 outer walls, passes body of heater, external thermal insulation 15 inner thermal insulating layers 17 and boiler tube 19 successively from body of heater one side for device of air 21 and communicates with burner hearth 20; Purified gases from the burner hearth zone giving device of air 21 and enter high-temperature zone load coil 16 belows and up direction flows.The described quantity that is arranged on the delivery pipe 13 on the body of heater is 2 groups, its every group is the plural delivery pipe 13 that is uniformly distributed along the circumference, waste gas in the burner hearth 20, ash, achromachia part are discharged into outside the stove by two groups of delivery pipes 13, after handling, purification system enters atmosphere, last delivery pipe 13 main waste gas, ash and achromachia parts of being responsible for the generation of discharging cold zone, bottom delivery pipe 13 mainly is responsible for waste gas, ash and achromachia part that the discharging high-temperature zone produces; This body of heater is provided with two identical temperature measuring equipments 18; A temperature measuring equipment 18 is installed in cold zone, and another temperature measuring equipment 18 is installed in the high-temperature zone, and the temperature value that records by temperature measuring equipment is as the technology reference value.
Observation window device is made of sight glass 4, head light 5, inspection section 6, has gas to chew 7 on its inspection section 6, and inspection section 6 lower ends link to each other with the last T shape flange cover 9 of burner hearth by flange 8; Can observe height and the blanking situation of material in burner hearth 20 by observation window device, so that velocity of flow and the tightness of tracking material in burner hearth 20.During observation valve 8 and head light 5 are opened, cleaning gas is chewed 7 unlatchings with valve 8 from gas and is flowed into burner hearth, observes the visual field with cleaning, observes finish valve-off 8 and head light 5, and cleaning gas is also closed with valve 8.
Feeding unit is to comprise hopper 1, transfer lime 2 and through wherein the material extrusion axle that has screw-blade with by motor-driven retarding mechanism 3, its hopper 1 is communicated with transfer lime 2, and transfer lime 2 is communicated with burner hearth 20 and observation window device respectively by threeway.Motor is a variable-frequency motor, can realize the blade rotational speed stepless change within the specific limits on the transfer lime 2 material extrusion axles, guarantees that feed rate is accurately adjustable.
Drawing mechanism comprises discharge bucket 34, output tube 28 and through wherein the material extrusion axle that has the spiral leaf with by motor-driven retarding mechanism 29, its output tube 28 is communicated with the following T shape flange cover 25 and the discharge bucket 34 of burner hearth 20 respectively, its discharge bucket 34 is provided with that vacuum valve 32 is gentle chews 33, its discharge bucket 34 upper ends are provided with corrugated tube 31 and last valve 30, its corrugated tube 31 links to each other with output tube 28 exit end by last valve 30, discharge bucket 34 lower ends are provided with lower valve 35 and discharge port 36 successively, and whenever described upward valve 30 and lower valve 35 have at least a valve to be in closing condition.The discharging flow of drawing mechanism can realize accurately adjustable equally.
Burner hearth 20 tops connect feeding unit, the below connects drawing mechanism, material enters burner hearth 20 under feeding unit and drawing mechanism coordinative role, with the uniform acceleration whereabouts and by burner hearth 20, ash in the material and achromachia part become volatile matter under the purified gases effect under fire box temperature effect and the temperature environment, this volatile matter is discharged to outside the stove from two groups of delivery pipes 13 under pyroreaction air pressure and the effect of cleaning gas.
Describedly pass body of heater, two thermal insulation layers and boiler tube 19 successively from stove one side for device of air 21 to communicate with burner hearth 20.The burner hearth of entering high-temperature zone load coil 16 belows for device of air 21 is regional and up direction is mobile.
Shielding gas (or cleaning gas) is chewed 27 and is fed from being welded on down gas on the T shape flange cover 25, flows into burner hearths 20 by lower flange cover 25, and mobile from the bottom up in order to ensure burner hearth gas, whenever valve 30, valve 35 have at least one to be in closing condition.
The working process of this induction heater: at first close motor and valve 30 and valve 35 in the drawing mechanism, hopper 1 is filled it up with material, opens all water coolants, and closing holds one's breath chews 27 shielding gas.Open vacuum system and vacuum valve 32; hopper 34 abdominal cavities are evacuated; vacuumize and finish; chew 33 from gas and add shielding gas; make hopper 34 abdominal pressures return to barometric point; open transfer lime 3, the material in the hopper 1 is pumped into burner hearth 20, confirm the height of material in burner hearth by observation window device; after material is filled it up with processing requirement; close transfer lime 2, send electricity to two load coils 16, boiler tube 19 begins to heat up; measure the current temperature value of boiler tube 19 cylindrical shells outside corresponding position by two temperature measuring equipments 18; be the fire box temperature currency, after temperature was raised to certain process value, gas was chewed 27 input protection gases (or cleaning gas).The one segment process time of interval, from giving device of air 21 low discharges input purified gases, material impurity is scavenged into to a certain degree (experience judgement) when the high-temperature zone, progressively increase purified gases flow and fire box temperature to the normal process value, open valve 30 (valve 35 is still closed), start drawing mechanism, output tube 28 is to discharge bucket 34 dischargings, start feeding unit, transfer lime 2 is to burner hearth 20 feedings, confirm the full material situation of material in burner hearth 20 by observation window device, the flux values of accurate adjustment feeding unit and drawing mechanism, make the flow synchronous coordination of feeding unit and drawing mechanism, in service regularly by the blanking situation in the observation window device inspection burner hearth 20, guarantee that material keeps suitable elasticity in burner hearth 20.
Material is subjected in burner hearth 20 under the effect of the thrust of output tube 28 in the transfer lime 2, drawing mechanism in temperature, purified gases, shielding gas (or cleaning gas), the feeding unit and several big factors of gravity; can continuously finish impurity volatilization, impurity discharging and material important process process such as directed flow from top to bottom, reach the quantity-produced processing requirement.
Impurity in the material (ash and achromachia part) becomes volatile matter under the purified gases effect under fire box temperature effect and the temperature environment.This volatile matter is discharged into outside the stove by two groups of delivery pipes 13 under pyroreaction air pressure and the effect of cleaning gas, enters atmosphere after purification system is handled.The purpose that two groups of delivery pipes are set is: be provided with one from top to bottom in burner hearth, gradient warm area from low to high makes low temperature volatilization impurity and vaporization at high temperature impurity shunting discharging, to reduce the disadvantageous effect of reaction pressure to burner hearth, prevent to spray the stove phenomenon and take place, improve the system works security.Along with the material in the discharge bucket 34 increases, the also corresponding increase of hopper weight (but the pulling force effect of 30 pairs of discharge buckets 34 of corrugated tube 31 basically eliminate valves guarantees that discharge bucket 34 is accurate by weighing).By what of hopper 34 weight decidable hopper materials, after material is full, the valve 30 in close synchronously feeding unit and drawing mechanism and the drawing mechanism, the material of opening in valve 35, the discharge bucket 34 that processes is sent to outside the stove by valve 35, discharge port 36.Discharging finishes, and valve-off 35 is opened vacuum valve 32, once more discharge bucket 34 is evacuated, and vacuumizes to finish, and chews 33 from gas once more and adds shielding gas, makes discharge bucket 34 abdominal pressures return to normal atmosphere.Finish; hold one's breath and chew 33 shielding gas in the pass; open valve 30, transfer lime 2, output tube 28 synchronously; material flows again from top to bottom in the burner hearth; go round and begin again; realized the continuous production operation, increased the volume and the vacuum pumping speed of hopper 34, can make the blanking time scale promptly produce continuous rate and reach more than 97%.
In blow-on for the previous period, because the cold burden of below, high-temperature zone can't be purified or greying, former bucket material of coming out of the stove from hopper 34 should come back to and enter burner hearth 20 hopper 1 once more, after confirming that by material chemical examination material that hopper 34 comes out reaches technic index, could collect qualified product, the adjustment of significant parameters such as discharging speed, gas supply flow, working temperature all must be as the criterion with the material result of laboratory test, by parameter adjustment, after confirming that the material laboratory indexes is qualified, could press correct parameter production and collection material.
Claims (6)
1. a graphite is purified and graphitizable high temperature vertical continuous induction heating furnace, comprises feeding unit, body of heater, burner hearth (20), load coil (16), observation window device, feet (26) and drawing mechanism, it is characterized in that:
Described graphite is purified and graphitizable high temperature vertical continuous induction heating furnace is a vertical structure, its body of heater is made of the vertical type cylinder ladle furnace body of the water through sandwich structure that communicates with each other base (23), urceolus (14) and bell (11), base (23) and bell (11) respectively are provided with centre hole, and body of heater is fixed on the feet (26) by base;
Described burner hearth (20) is the burner hearth of a vertical type cylinder body space, burner hearth (20) upper end is provided with T shape flange cover (9), T shape flange cover (9) passes bell (11) centre hole and extends burner hearth (20) internal upper part on it, its burner hearth (20) lower end is provided with down T shape flange cover (25), following T shape flange cover (25) is provided with water(-cooling) jacket (24), water(-cooling) jacket (24) is fixed on burner hearth (20), boiler tube (19) below, following T shape flange cover (25) passes water(-cooling) jacket (24) successively and base (23) is communicated with burner hearth (20), and following T shape flange cover (25) is provided with gas and chews (27); Boiler tube on the burner hearth (19) lower end is arranged in the base (23) in the heart by retaining ring (22), and touch with bell (11) central hole mutually by gasket (10) upper end; The load coil (16) that thermal insulation layer is set on boiler tube (19) periphery and boiler tube is heated by the independent current source power supply, its thermal insulation layer is made up of inner thermal insulating layer (17) and external thermal insulation (15) and cover plate (12), and the quantity of load coil (16) is 1～2;
Last T shape flange cover (9) in the described burner hearth (20) is communicated with feeding unit and observation window device respectively by threeway, and burner hearth (20) T shape flange cover (25) down is communicated with drawing mechanism;
Described body of heater is provided with delivery pipe (13), temperature measuring equipment (18) and give device of air (21), its delivery pipe (13) evenly is obliquely installed along the body of heater circumference, be that delivery pipe (13) passes body of heater successively along the body of heater circumference, external thermal insulation (15), inner thermal insulating layer (17) and boiler tube (19) communicate with burner hearth (20) and make it to form the outside discharge structure that is inclined upwardly, temperature measuring equipment (18) passes body of heater successively from body of heater one side, external thermal insulation (15) touches with boiler tube (19) outer wall mutually with inner thermal insulating layer (17), passes body of heater successively from body of heater one side for device of air (21), external thermal insulation (15) inner thermal insulating layer (17) and boiler tube (19) communicate with burner hearth (20); The described quantity that is arranged on the delivery pipe (13) on the body of heater is more than 1～2 group, and its every group is two above delivery pipes that are uniformly distributed along the circumference, and temperature measuring equipment (18) quantity that is arranged on the body of heater is 1～2.
2. graphite as claimed in claim 1 is purified and graphitizable high temperature vertical continuous induction heating furnace, it is characterized in that described observation window device is to be made of sight glass (4), head light (5), inspection section (6), its inspection section (6) is provided with gas and chews (7), and inspection section (6) lower end links to each other with the last T shape flange cover (9) of burner hearth (20) by valve (8).
3. graphite as claimed in claim 1 is purified and graphitizable high temperature vertical continuous induction heating furnace, it is characterized in that described feeding unit is to comprise hopper (1), transfer lime (2) and through wherein the material extrusion axle that has screw-blade with by motor-driven retarding mechanism (3), its hopper (1) is communicated with transfer lime (2), and transfer lime (2) is communicated with burner hearth (20) and observation window device respectively by threeway.
4. purify and graphitizable high temperature vertical continuous induction heating furnace as claim 1 and 3 described graphite, it is characterized in that described drawing mechanism comprises discharge bucket (34), output tube (28) and through wherein the material extrusion axle that has screw-blade with by motor-driven retarding mechanism (29), its output tube (28) is communicated with the following T shape flange cover (25) and the discharge bucket (34) of burner hearth (20) respectively, its discharge bucket (34) is provided with gentle the chewing of vacuum valve (32) (33), its discharge bucket (34) upper end is provided with corrugated tube (31) and last valve (30) successively, its corrugated tube (31) links to each other with output tube (28) exit end by last valve (30), discharge bucket (34) lower end is provided with lower valve (35) and discharge port (36) successively, and whenever described upward valve (30) and lower valve (35) have at least a valve to be in closing condition.
5. purify and graphitizable high temperature vertical continuous induction heating furnace as claim 1 and 3 described graphite, it is characterized in that being provided with in the described body of heater two load coils (16) to boiler tube (19) heating, promptly two load coils (16) are the water cooling coil independent of each other of the adjustable power of two cover independent current source power supplies.
6. a kind of graphite as claimed in claim 1 is purified and graphitizable high temperature vertical continuous induction heating furnace, it is characterized in that described inner thermal insulating layer (17) is the carbon black thermal insulation layer, external thermal insulation (15) is an oxide compound cylindrical shell thermal insulation layer, and its carbon black thermal insulation layer is filled between oxide compound cylindrical shell thermal insulation layer and the boiler tube (19).
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| SU1231360A1 (en) * | 1984-08-31 | 1986-05-15 | Предприятие П/Я М-5409 | Electric graphitizing furnace |
| AU4057593A (en) * | 1993-05-21 | 1994-12-20 | Stratmin Inc. | Process and apparatus for the purification of graphite |
| US20050062205A1 (en) * | 2003-09-18 | 2005-03-24 | Zak Mark S. | Method and apparatus for heat treatment of particulates in an electrothermal fluidized bed furnace and resultant products |
| CN2759998Y (en) * | 2004-11-15 | 2006-02-22 | 镇江焦化煤气集团有限公司 | Vertical electric incinerator for continuous production of high-purity graphite carbon material |
| CN1310833C (en) * | 2004-11-15 | 2007-04-18 | 镇江焦化煤气集团有限公司 | Continuous production and apparatus for high-purity graphite carbon material |
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