CN2320625Y - Integral rotating vacuum continuous crystallization heat treatment furnace - Google Patents
Integral rotating vacuum continuous crystallization heat treatment furnace Download PDFInfo
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- CN2320625Y CN2320625Y CN 97226390 CN97226390U CN2320625Y CN 2320625 Y CN2320625 Y CN 2320625Y CN 97226390 CN97226390 CN 97226390 CN 97226390 U CN97226390 U CN 97226390U CN 2320625 Y CN2320625 Y CN 2320625Y
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Abstract
The utility model discloses an integral rotating vacuum continuous crystallization heat treatment furnace, which is mainly used for the crystallization treatment of the rapidly quenched Nd-Fe-B powders. Because integral rotation is adopted, furnace tubes, cooling tubes and a cooling storage device are connected into rigid integration to rotate, so that not only dynamic seal and resistance during rotation are reduced, the structure is simple, and the maintenance is convenient, and the process target of rapid heating and rapid cooling required in the crystallization process which is not realized in the prior art is realized. In addition, the utility model uses a unique ejecting mechanism, which can meet the requirement of uniform conveying of granular materials with different forms and shapes, and a big and a small scrapers and the installation and the fixation thereof are all designed with a round angle for smooth transition, solving the material adhering problem in crystallization process.
Description
The utility model belongs to the improvement to original vacuum continuous crystallization heat treatment furnace, it relates to the rotary type vacuum continuous crystallization heat treatment furnace of a kind of easy oxide powder or particulate material continuous heat treatment, specifically a kind of whole rotary type vacuum continuous crystallization heat treatment furnace that is mainly used in vacuum continuous crystallization processing fast quenching NdFeB magnetic powder.
Existing vacuum continuous crystallization stove mainly contains rotary type vacuum continuous crystallization stove and belt vacuum continuous crystallization stove two class formations.But it is all undesirable, mainly show: the one, can not be rapidly heated, be in the heat-processed powder or bar interband opposite position in static state, a little less than the heat exchange, cause the part powder to cross crystallization or grain growth each other, thereby cause magnetic particle capability to worsen (belt vacuum continuous crystallization is jealous of promptly so).The 2nd, the cooling system scarce capacity, powder in the process of cooling (or band) all is in static state, and cooling time is longer, can not realize quick cooling purpose, also will cause magnetic particle capability to worsen (existing vacuum continuous crystallization stove is all like this).The 3rd, the material seeding mouth only is suitable for powder, and the material seeding of facing band (or sheet) material then seems and difficulty even it is also uneven to broadcast thickness, influenced the homogeneity of convey materials.The 4th, the boiler tube internal structure is unreasonable, and easy sizing during work is especially to the fine powder material.The 5th, dynamic seal is too many, and resistance is big during boiler tube work, and range limited system of speed adjustment and gas leakage probability increase, and maintenance also comparatively bothers.
More than the existence of five big problems, make existing vacuum continuous crystallization stove can not satisfy the demand of people preferably to " structure is simpler, working service is more convenient, can handle various shape size pellets, and can realize the fast cold technology of fast heat ".
The whole rotary type vacuum continuous crystallization heat treatment furnace that target of the present utility model just provides a kind of " structure is more simple, use is more convenient, can handle various shape size materials, more mainly is can realize being rapidly heated, cooling off fast ".
Target of the present utility model is achieved like this: shown in the patent specification accompanying drawing, it comprises body of heater (being made up of material seeding storehouse, boiler tube, cooling tube, cooling storage device etc.), vacuum system, heating system, transmission and microcomputer control system, water-cooling system five major parts.Wherein the two ends of said body of heater have loading hopper respectively and can realize quick refrigerative cooling storage device; There is the belt traversing mechanism and the material toggling mechanism of controllable flow the loading hopper below; The cooling storage device comprises the shell and the big scraper plate that is fixed in wherein of double-deck water-cooled; Said vacuum system one end and material seeding storehouse UNICOM, the other end is UNICOM's atmosphere then; Water-cooling system divides three the road to supply water, and one the tunnel for vacuum system, and two-way is for body of heater; Said heating jacket is positioned at around the body of heater central authorities boiler tube, and it is one can open two partly forming of can closing, and divides three sections boiler tube heated; Said transmission and microcomputer control system comprise formations such as driving and driven sprocket wheel, chain and three speed governing torque motors, microcomputer control, mainly finish functions such as motor start-stop (or speed governing), diffusion pump electric furnace start-stop and heated constant temperature control.
Of the present utility model being characterised in that:
The reinforced belt traversing mechanism that adopts buncher to drive, the top also is provided with the material toggling mechanism that is driven by buncher, thereby the powder (or sheet strip material) of different shape size can be delivered on the travelling belt equably.
Body of heater cooling tube and cooling storage device adopt the particular structure and the type of cooling both to reduce dynamic seal effectively, simplified the structure, simplified to use and keep in repair, improved the furnace sealing performance, make this crystallization furnace have reliable quick cooling function again simultaneously.Dynamic seal is few, the boiler tube rotational resistance is little, and the rotating speed setting range strengthens, and the process choice during favourable work, and favourable being rapidly heated realize that " fast heat is cold soon " technology is particularly important to the crystallization of fast broken NdFeB magnetic powder.
Each position of scraper plate self and connection place in boiler tube, cooling tube, the cooling storage device all adopt the angle, garden to seamlessly transit structure, thereby can reduce the generation of sizing situation effectively.
Below in conjunction with accompanying drawing the utility model is described specifically:
Accompanying drawing is the structural representation of whole rotary type vacuum continuous crystallization heat treatment furnace.
As shown in drawings, whole rotary type vacuum continuous crystallization heat treatment furnace is made up of boiler tube 8 and each system of being attached thereto.Rotary dynamic seal assembly 9 and feeding storehouse 7 sealing UNICOMs that the left side of boiler tube 8 is made up of three outside framework oil seals.Outer and the vacuum system 34 of feeding storehouse 7 links, to realize vacuum in the stove, be supported on the stove plate 38 by a support 39 down, in be provided with the mouth 6 that connects material, transporting mechanism (comprises supporting plate 5, belt traversing mechanism 4, material toggling mechanism 3 and material seeding mouth 2, the gap clearance that material seeding mouth 2 and material toggling mechanism are 3 is adjustable, loading hopper 1 is positioned at the top of material seeding mouth 2, and with feeding storehouse 7 sealed attachment.Stove plate 38 places on the grate 27 by regulating any adjusting of turn-knob 33 and scale 32 indication realizations and level inclination.Driven sprocket 11 is fixed on the boiler tube 8, and support plate 41 is fixed on the stove plate 38 with support moment motor 31, drives follow-up pulley 11, thereby drives rotation such as boiler tube 8 devices such as grade.Big water jacket 12 is fixed on the stove plate 38 by No. three supports 29, is positioned at heating jacket 13 left sides, is used for the boiler tube on water cooling heating jacket 13 left sides, to guarantee the effective efficiency of dynamic sealing assembly 9 and bearing supporting 10.Being fixed in heating jacket 13 on the stove plate 38 by No. four supports 28 is one and can opens the two halves that can close and partly form.It divides three sections heating, and each section temperature is respectively by the unit control separately in transmission and the microcomputer control system 26, to realize heating and heat preserving function.Boiler tube 8 passes heating jacket 13 and is coupled to one with cooling tube 15 welding.There is a thermoscreen 17 connection place, is fixed in the cooling solid 15, in order to the radiation of the heat in the resistance shelves boiler tube 8 to cooling tube 15.Cooling tube 15 is pair of lamina water-cooling structures, its function exactly to pass heating jacket 13 isothermal regions crystallization handle powder (or band) and carry out the first step and cool off fast.Cooling tube 15 the other ends compress sealed attachment in one by flange and the cooling storage device 19 with double-deck water-cooling structure by bolt and nut.Boiler tube 8, cooling tube 15, cooling storage device 19 are promptly formed a rigid unitary like this, whole together rotation during work, thereby significantly reduced dynamic seal, simplify the structure two groups of bearings supporting about this integral body has: left bearing supporting 10,16 links to each other with stove plate 38 by No. two supports 40, No. five supports 25 respectively.The other end of cooling storage device 19 rotates when being weldingly connected work with double-deck water-cooled axle 22.The plane of cooling storage device 19 is provided with discharging fire door 23 and plate washer 24.The function of cooling storage device 19 has two: one, and the secondary of powder (or band) cools off fast; The 2nd, store in furnace charge, boiler tube 8 and the cooling tube 15 to be come out of the stove after the crystallization and be welded with little scraper plate 18, in the cooling storage device 19 big scraper plate 20 is arranged, their function is in rigid unitary that boiler tube 8, cooling tube 15 and cooling storage device 19 are formed together in the rotary course, the seething, stir of aggravation, powder quick (or band).This function has been owing to aggravated heat exchange between storeroom and material and furnace wall, scraper plate effectively, and can select suitably high rotating speed, therefore can realize " heat is cold soon soon " purpose.The function of transmission and microcomputer control system 26 has three: one, control belt traversing mechanism 4, material toggling mechanism 3, torque motor 31; The 2nd, control vacuum system 34; The 3rd, three sections heating temperature controls of control heating jacket 13.Waterworks is made up of water service pipe 35 and return flume 36, divides three the tunnel to supply backwater: the one tunnel for vacuum system 34, and backwater directly injects return flume 36; Two-way is in addition: one tunnel logical small water sleeve 21, by double-deck water-cooled axle 22 enter cooling storage device 19 and its with flange that cooling tube 15 connects near the partly outflow water inlet of leading directly to cooling tube 15, the backwater of cooling tube 15 also seals in the backwater that cools off storage device 19, flows out to return flume 36 from small water sleeve 21 in the lump.Another road leads directly to big water jacket 12.Be jealous of frame 27 to support whole body of heater on the level ground.
During actually operating, will add in the loading hopper 1 through the Nd-Fe-B alloys powder (or the band after thick the breaking) of fast quenching, open water service pipe 35 each road water coolant, unlatching transmission and microcomputer control system 26 starting vacuum pumps 34 vacuumize and give heating jacket 13 feeding temperature-raisings.Make the inclination angle reach set(ting)value (selecting in 2 °-15 °) to reach 2 * 10 when vacuum tightness by regulating turn-knob 33
-2Pa, and when temperature reaches predetermined set value (600-750 ° of selection), elder generation's staring torque motor 31, drive boiler tube 7, cooling tube 16, the rigid unitary that cooling storage device 19 is formed is rotated together and reach requirement rotating speed (selecting) in the 2-60r/min scope, start belt traversing mechanism 4, starting material toggling mechanism 3 at last meets the requirements of rotating speed and powder or band is evenly dialled fall, enter the mouth 6 that connects material by belt traversing mechanism 4, thereby enter in the boiler tube 8, because there is level inclination in boiler tube 8, the little scraper plate 18 that in addition is placed in one, travelling forward when closing thereby make powder or band in the boiler tube 8 of rotation, constantly seethed to stir, entering in the zone of constant temperature of heating jacket 13, be aided with rotating speed, three sections cooperations such as temperature can realize the purpose of rapid heating insulation.Through intensification, in the circular clearance inflow cooling tube 15 of powder (or band) after the insulation by 15 of thermoscreen 17 and cooling tubes, constantly seethed to stir and close by little scraper plate 18, thereby the realization first step is cooled off fast, powder (or band) enters cooling storage device 19 and is placed in wherein big scraper plate 20 and seethes once more to stir and close subsequently, fast cooling again, thus realize that the second stage cools off fast.Continue the material of above process in loading hopper 1 all intact till.The loose-leaf 14 that can open heating jacket 13 is after a while according to circumstances opened heating jacket and is moved away.For guaranteeing that furnace charge cools off fast, boiler tube 8, cooling tube 15, cooling storage device 19 must continue rotation, till being to make powder (or band) be chilled to room temperature.Can exit, leave the fast quenching NdFeB magnetic powder after material fire door 23 takes out crystallization processing this moment.
As above describe, main feature of the present utility model is to realize the purpose of " be rapidly heated, fast cooling " easily, thereby can satisfy the crystallization process requirement of neodymium iron boron fast quenching magnetic well, and the output 50-100kg of class is adjustable.This utility model decapacitation is carried out outside crystallization handles fast quenching neodymium iron boron powder, also is fit to other similar thermal treatment or roasting that requires easy oxide powder under vacuum or the protective atmosphere (or pellet, band).
Claims (5)
1. a whole rotary type vacuum continuous crystallization heat treatment furnace is made up of body of heater, vacuum system, heating system, water-cooling system, transmission and microcomputer control system five big systems.Body of heater is made up of loading hopper 1, material seeding storehouse 7, boiler tube 8, cooling tube 15, cooling storage device 19 etc.It is characterized in that: boiler tube 8, cooling tube 15 and cooling storage device 19 connect into a rigid unitary, whole rotation; Transmission and microcomputer control system 26 control moment motors 31, and by drive sprocket 30, the rigid unitary that the chain-wheel mechanism that chain 37, follow-up pulley 11 are formed will be jealous of pipe 8, cooling tube 15 and cooling storage device 19 to connect into drives and controls its rotating speed; Heating jacket 13 in the heating system can be divided into two partly by loose-leaf 14, can open when needing; In the water-cooling system, big water jacket 12, small water sleeve 21, remain staticly when body of heater work, small water sleeve 21 gives water cooling tube 15 water supply again when supplying water for cooling storage device 19 by the double-deck water-cooled axle 22 of rotation.
2. whole rotary type vacuum continuous crystallization heat treatment furnace according to claim 1, it is characterized in that having in the material seeding storehouse 7 the belt traversing mechanism 4 of adjustable speed, be fixed on the supporting plate 5,2 in material seeding mouth thereon, between belt traversing mechanism 4 and material seeding mouth 2, also be provided with the setting gauge 3 of an adjustable rotating speed, and the gap clearance of 3 in material seeding mouth 2 and material toggling mechanism is adjustable.
3. whole rotary type vacuum continuous crystallization heat treatment furnace according to claim 1 is characterized in that at boiler tube 8 cooling tube 15, in the rigid unitary that cooling storage device 19 forms continuously, cooling tube 15, cooling storage device 19 all has double-deck water-cooling structure, and boiler tube is a single layer structure.15 of boiler tube 8 and cooling tubes are to be welded to connect, and cooling tube 15 and 19 of storage devices of cooling then are to compress sealing continuously by two flanges by bolt and nut.
4. whole rotary type vacuum continuous crystallization heat treatment furnace according to claim 1, it is characterized in that at stove 8, cooling 15, cooling storage device 19 links to each other in the rigid unitary that forms, be respectively arranged with little scraper plate 18, big scraper plate 20, the structure of big or small scraper plate itself and installation thereof all adopt the angle, garden to seamlessly transit.
5. monoblock type vacuum continuous crystallization heat treatment furnace according to claim 1, it is characterized in that boiler tube 8, the speed of rotation of the rigid unitary that cooling tube 15 and cooling storage device 19 are formed is adjustable in 2-60r/min, and its axis can be regulated by the indication of regulating turn-knob 33 and scale 32 between 2 °-15 ° the inclination angle of horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97226390 CN2320625Y (en) | 1997-11-05 | 1997-11-05 | Integral rotating vacuum continuous crystallization heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97226390 CN2320625Y (en) | 1997-11-05 | 1997-11-05 | Integral rotating vacuum continuous crystallization heat treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2320625Y true CN2320625Y (en) | 1999-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97226390 Expired - Fee Related CN2320625Y (en) | 1997-11-05 | 1997-11-05 | Integral rotating vacuum continuous crystallization heat treatment furnace |
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| CN (1) | CN2320625Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351595C (en) * | 2002-04-30 | 2007-11-28 | Posco公司 | Rotary ventilation bar in a sintering machine |
| CN102052827B (en) * | 2009-11-06 | 2013-05-29 | 中国科学院上海硅酸盐研究所 | Temperature control-material feeding coupled zone fritting furnace |
| CN103192084A (en) * | 2013-05-05 | 2013-07-10 | 沈阳中北真空磁电科技有限公司 | Rotary vacuum heat treatment equipment |
| CN103205543A (en) * | 2013-05-05 | 2013-07-17 | 沈阳中北真空磁电科技有限公司 | Vacuum heat treatment method and equipment for permanent NdFeB rare earth magnet device |
| WO2014019319A1 (en) * | 2012-07-30 | 2014-02-06 | 江苏巨鑫磁业有限公司 | Method for crystallizing rapidly-quenched neodymium powder |
| CN103882205A (en) * | 2014-04-04 | 2014-06-25 | 江苏巨鑫磁业有限公司 | Efficient crystallization furnace for neodymium-iron-boron magnetic materials |
| CN103882187A (en) * | 2014-04-04 | 2014-06-25 | 江苏巨鑫磁业有限公司 | Crystallization device for neodymium-iron-boron magnetic materials |
| CN103971924A (en) * | 2014-05-07 | 2014-08-06 | 黟县越驰科技电子有限公司 | Magnetic powder crystallizing furnace |
| CN104482762A (en) * | 2014-11-13 | 2015-04-01 | 孔庆虹 | Continuous hydrogen treatment device of rare earth permanent magnet |
| CN105107441A (en) * | 2015-09-09 | 2015-12-02 | 江苏新江南炉业科技有限公司 | Rotary battery material heating kettle |
| CN117645301A (en) * | 2024-01-30 | 2024-03-05 | 山东硅纳新材料科技有限公司 | High-purity submicron-order Mg 2 Si preparation method and continuous vacuum rotary kiln |
-
1997
- 1997-11-05 CN CN 97226390 patent/CN2320625Y/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351595C (en) * | 2002-04-30 | 2007-11-28 | Posco公司 | Rotary ventilation bar in a sintering machine |
| CN102052827B (en) * | 2009-11-06 | 2013-05-29 | 中国科学院上海硅酸盐研究所 | Temperature control-material feeding coupled zone fritting furnace |
| WO2014019319A1 (en) * | 2012-07-30 | 2014-02-06 | 江苏巨鑫磁业有限公司 | Method for crystallizing rapidly-quenched neodymium powder |
| CN103567453A (en) * | 2012-07-30 | 2014-02-12 | 江苏巨鑫磁业有限公司 | Crystallization method for neodymium, iron and boron quick-quenched powder |
| CN103192084B (en) * | 2013-05-05 | 2015-11-25 | 沈阳中北真空磁电科技有限公司 | A kind of Rotary vacuum heat treatment equipment |
| CN103192084A (en) * | 2013-05-05 | 2013-07-10 | 沈阳中北真空磁电科技有限公司 | Rotary vacuum heat treatment equipment |
| CN103205543A (en) * | 2013-05-05 | 2013-07-17 | 沈阳中北真空磁电科技有限公司 | Vacuum heat treatment method and equipment for permanent NdFeB rare earth magnet device |
| CN103882205B (en) * | 2014-04-04 | 2015-12-30 | 江苏巨鑫磁业有限公司 | The efficient crystallization furnace of a kind of neodymium-iron-boron magnetic material |
| CN103882187A (en) * | 2014-04-04 | 2014-06-25 | 江苏巨鑫磁业有限公司 | Crystallization device for neodymium-iron-boron magnetic materials |
| CN103882205A (en) * | 2014-04-04 | 2014-06-25 | 江苏巨鑫磁业有限公司 | Efficient crystallization furnace for neodymium-iron-boron magnetic materials |
| CN103882187B (en) * | 2014-04-04 | 2016-01-20 | 江苏巨鑫磁业有限公司 | A kind of neodymium-iron-boron magnetic material crystallization system |
| CN103971924A (en) * | 2014-05-07 | 2014-08-06 | 黟县越驰科技电子有限公司 | Magnetic powder crystallizing furnace |
| CN104482762A (en) * | 2014-11-13 | 2015-04-01 | 孔庆虹 | Continuous hydrogen treatment device of rare earth permanent magnet |
| CN104482762B (en) * | 2014-11-13 | 2016-05-04 | 孔庆虹 | A kind of continuous hydrogen treating apparatus of rare earth permanent magnet |
| CN105107441A (en) * | 2015-09-09 | 2015-12-02 | 江苏新江南炉业科技有限公司 | Rotary battery material heating kettle |
| CN105107441B (en) * | 2015-09-09 | 2017-03-22 | 江苏新江南炉业科技有限公司 | rotary battery material heating kettle |
| CN117645301A (en) * | 2024-01-30 | 2024-03-05 | 山东硅纳新材料科技有限公司 | High-purity submicron-order Mg 2 Si preparation method and continuous vacuum rotary kiln |
| CN117645301B (en) * | 2024-01-30 | 2024-04-02 | 山东硅纳新材料科技有限公司 | High-purity submicron-order Mg 2 Si preparation method and continuous vacuum rotary kiln |
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Addressee: Guo Jinhua Document name: Notification of Termination of Patent Right |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |