CN107297508A - A kind of use for laboratory melt dry granulation device - Google Patents
A kind of use for laboratory melt dry granulation device Download PDFInfo
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- CN107297508A CN107297508A CN201710448557.5A CN201710448557A CN107297508A CN 107297508 A CN107297508 A CN 107297508A CN 201710448557 A CN201710448557 A CN 201710448557A CN 107297508 A CN107297508 A CN 107297508A
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- spray chamber
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- graphite crucible
- rotating disk
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
Abstract
The present invention relates to a kind of use for laboratory melt dry granulation device, the device includes induction furnace, rotation granulation system, air cooling system, metallic particles collection structure and gas gathering system；Induction furnace is heated by induction coil to graphite crucible, accurately controls the solution temperature tested；Molten metal injection rotating disk in granulation system is rotated, drives rotating disk to rotate by the driving of motor, is granulated molten metal；Air cooling system, which sputters granulation, carrys out metallic particles cooling；Metallic particles metal collection of the metallic particles collection structure to whereabouts；Gas gathering system is used for the hot-air for cooling down metallic particles.The experimental provision can be used for studying the relation between melt flow, melt temperature, pelletizer parameter and rotating speed size and granulated particles property.
Description
Technical field
Technical field of experiment equipment prepared by metallic particles is studied the present invention relates to a kind of, and in particular to a kind of use for laboratory
Melt dry granulation device.
Background technology
Rotation granulation technique is widely used in terms of chemical industry, powder metallurgy, pharmacy, food and agricultural.Britain
Pickering et al. takes the lead in being introduced into the dry granulation process of blast furnace cinder, rotation granulation in British Steel Corporation (BSC)
Technique the advantages of its production efficiency is high, granularity is controllable because gaining great popularity, and subsequent lot of domestic and international scholar expands to this technology
Numerous studies.Dry method rotation granulating technique can be not only used for the granulation of metallurgical cinder, such as blast furnace slag, vessel slag and electroslag
Deng can be also used for the granulation of metal bath, such as molten iron, ferroalloy.
Nineteen forty-one Japanese scholars canopy pool etc. and nineteen fifty Dutch scholar Hinze et al. are entered using the aqueous solution and organic solution etc.
Go the mechanism experiment of the centrifugal atomizing breakup of drop, test result indicates that, during using rotating disk centrifugal atomizatio, point of liquid granulation
Split form as shown in the figure.The formation of molten drop mainly has three kinds of different mechanism：Droplet-like divides (DDF, Droplet Direct
Formation), threadiness division (LF, Linear Formation) and membranaceous division (FF, Film Foramation).But
The decomposition mechanism of high-temperature fusant granulation, need experimental verification.
The characteristic (grain size, particle diameter distribution and sphericity etc.) of melt granulation particle influences it except melt self property
Outside, mainly by factor controllings such as pelletizer parameter, melt temperature, melt flow and rotating speeds.Wherein, the temperature of melt is to determine grain
Change a key factor of particle properties.When laboratory carries out melt granulation experiment, it usually needs using induction furnace first by metallurgy
Slag or metal (alloy) rapid melting, are then injected into the container of bottom of which has holes, carry out granulation experiment.This process metal melts
Know from experience and produce different degrees of temperature drop, it is difficult to obtain the relation between accurate temperature and granulated particles property.
The content of the invention
In view of the above-mentioned problems existing in the prior art, temperature and granulation can be obtained it is an object of the invention to provide one kind
The use for laboratory melt dry granulation device of relation between graininess matter.
To achieve the above object, the present invention is adopted the following technical scheme that：A kind of use for laboratory melt dry granulation device, bag
Include induction furnace, rotation granulation system, air cooling system, metallic particles collection structure and gas gathering system；
Induction furnace：Including induction coil, graphite crucible and plug；
The bottom of the graphite crucible, which has, is used for the hole that melt flows down, and the plug is slidably matched with the hole；
The induction coil is fixed by support, and lays circlewise structure, for being heated to graphite crucible, the graphite
Crucible is arranged in the cyclic structure of induction coil formation, and graphite crucible is coaxially disposed with induction coil；
Rotate granulation system：Including spray chamber, rotating disk, flange, connecting shaft and motor；
The spray chamber has molten metal inlet, metallic particles outlet and air outlet slit, the molten metal injection
Mouth is arranged on the top of spray chamber, and metallic particles exports the bottom for being arranged on spray chamber；
The rotating disk and flange are located inside spray chamber, and rotating disk is fixed on the top of flange, and rotating disk injects with molten metal
Mouth is oppositely arranged；
The connecting shaft is arranged on the lower section of flange, and its top is fixedly connected with flange；
The motor is connected with connecting shaft, and drive connection axle is rotated along central shaft；
The induction furnace is arranged on the top of spray chamber, the top of spray chamber and around molten metal inlet provided with a circle
Refractory brick, the induction coil and graphite crucible are arranged on refractory brick；
The hole of the graphite crucible bottom is coaxially disposed with molten metal inlet；
Air cooling system：Including air compressor, gas cylinder, multiple air nozzles and air nozzle mounting structure；
The gas vent of the air compressor is connected by pipeline with the gas access of gas cylinder, and the compressed gas of gas cylinder goes out
Mouth is connected by tracheae with the gas access of air nozzle；
The air nozzle mounting structure includes mounting bracket and air distribution plate；
The mounting bracket is arranged on the periphery of flange；
The air distribution plate is fixed on the top of mounting bracket, and the air distribution plate is loop configuration, and with multiple air nozzles
Mounting hole, the multiple air nozzle mounting hole is circumferentially laid along air distribution plate, and where the center of circle of multiple air nozzle mounting holes
Circle is located on the outside of rotating disk top edge；
Metallic particles collection structure：Including the first metallic particle collector；
First metallic particle collector is used to collect the metallic particles discharged from spray chamber bottom；
Gas gathering system：Collector and the second metallic particle collector including hot-air；
The gas access of the collector is connected by pipeline with the air outlet slit on spray chamber；
Second metallic particle collector is with being connected, the metallic particles produced for collecting dust-removing.
As optimization, the induction furnace also includes drainage tube；
The top of the drainage tube is detachably connected with graphite crucible bottom, and drainage tube and the hole of graphite crucible bottom are same
Axle is set.
As optimization, the bottom of the graphite crucible has hollow extension, the extension and graphite crucible bottom
Hole be coaxially disposed；
The screw top connection of the extension and drainage tube.
It is used as optimization, in addition to induction furnace switch board；
The induction furnace switch board realizes the control to graphite crucible heating-up temperature by controlling the electric current in induction coil
System.
It is used as optimization, in addition to high-speed camera；
The top of the spray chamber has the peep hole for being used for installing high-speed camera, the camera lens court of the high-speed camera
To the bottom of spray chamber.
As optimization, the gas gathering system also includes temperature monitor；
The temperature monitor is arranged on the pipeline between the air outlet slit on the gas access and spray chamber of collector,
For detecting the gas temperature collected.
As optimization, metallic particles outlet is loop configuration, and circumferentially disposed along spray chamber bottom wall.
As optimization, first metallic particle collector is loop configuration, is arranged on the outside of spray chamber, and positioned at mist
Change the bottom of room, the opening of the first metallic particle collector upper end is relative with the metallic particles outlet of spray chamber bottom.
As optimization, the rotating disk is that top diameter is more than the horn-like structure of base diameter.
As optimization, the rotation granulation system also includes frequency converter, and the frequency converter is connected with motor, for controlling
The rotating speed of motor processed.
Relative to prior art, the invention has the advantages that：
1. the present apparatus can be for research melt flow, melt temperature, pelletizer parameter and rotating speed size and granulated particles
Relation between property.
2. granulation, using high-speed camera it is observed that hole shoots melt granulation photo, and then can analyze high temperature melting
The granulation mechanism of body.
3. hot air temperature is obtained, and then waste heat recovery can be calculated through temperature monitor thermometric after cooling air heat exchange
Efficiency.
4. add induction furnace above rotation granulation system, by induction furnace switch board, melt when can accurately control to be granulated
Temperature.
5. first being melted with metal in induction furnace, being then injected into bottom has pore volume device progress granulation to compare, and uses the present apparatus
It is easy to operate, safe efficient, and floor space is small.
6. graphite crucible consumption is fast, is connected by the screw top of extension and drainage tube, be easily installed, change graphite earthenware
Crucible.
7. drainage tube can substantially reduce air-flow to the influence of the melt flow down from crucible bottom, it is ensured that granulation effect.
Brief description of the drawings
Fig. 1 is the structure chart of use for laboratory melt dry granulation device.
Fig. 2 is the structure chart of graphite crucible.
Fig. 3 is the schematic diagram of the air distribution plate of flange.
Fig. 4 is the decomposition mechanism figure of the granulation of turntable rotation in the prior art, three kinds of different conditions of (a), (b) and (c) difference
Under decomposition mechanism figure.
Embodiment
The present invention is described in further detail below.
In the description of the invention, it is to be understood that term " on ", " under ", " vertical ", " top ", " bottom ", " interior ",
The orientation or position relationship of instructions such as " outer " are, based on orientation shown in the drawings or position relationship, to be for only for ease of and describe this hair
Bright and simplified description, rather than instruction or the signified device of hint or element must be with specific orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
A kind of use for laboratory melt dry granulation device, including induction furnace, rotation granulation system, air cooling system, gold
Metal particles collection structure and gas gathering system.
Induction furnace：Including induction coil 11, graphite crucible 2 and plug 1；
The bottom of the graphite crucible 2, which has, is used for the hole that melt flows down, and the plug 1 is slidably matched with the hole；
The induction coil 11 is fixed by support, and lays circlewise structure, described for being heated to graphite crucible 2
Graphite crucible 2 is arranged in the cyclic structure of the formation of induction coil 11, and graphite crucible 2 is coaxially disposed with induction coil 11；
For the ease of installing and changing graphite crucible, induction furnace also includes drainage tube 21；The top of the drainage tube 21 with
The bottom of graphite crucible 2 is detachably connected, and drainage tube 21 and the hole of the bottom of graphite crucible 2 are coaxially disposed.
Specifically, the bottom of graphite crucible 2 has hollow extension 2-1, the extension 2-1 and the bottom of graphite crucible 2
The hole in portion is coaxially disposed；
The extension 2-1 is connected with the screw top of drainage tube 21.
The temperature of melt during in order to be able to accurate control granulation, in addition to induction furnace switch board 23；
The induction furnace switch board 23 is realized to the heating-up temperature of graphite crucible 2 by controlling the electric current in induction coil 11
Control.
Induction furnace in the present invention uses intermediate frequency furnace, and intermediate frequency furnace refers to using power frequency in 150-
The electric induction furnace that 8000Hz range of power is powered, is 150-2500Hz using most frequencies, carries out sensing heating, and melting is protected
Temperature.Induction furnace is mainly used in melting carbon steel, steel alloy, special steel, it can also be used to copper, the melting and temperature raising of the non-ferrous metal such as aluminium.
Induction furnace has advantages below：
(1) because the principle of Frequency Induction Heating is electromagnetic induction, its heat itself is produced in workpiece, therefore heating speed
Rate is fast, can be warming up within general 20 minutes 1600 DEG C, little power consumption, production efficiency is high.
(2) its heat of sensing heating itself is produced so homogeneous heating, the core table temperature difference is minimum in workpiece.Using temperature control system
The accurate control to temperature can be achieved in system.
(3) use for laboratory intermediate frequency furnace also has equipment volume small, the advantages of floor space is small.
Under normal circumstances, intermediate frequency furnace is individually separated with granulating device.Laboratory carries out melt granulation experiment, first will
Metal, alloy or clinker are melted in intermediate frequency furnace, are incubated, then by the tundish above melt transfer to granulation stove
In, then carry out granulation experiment.This test method the disadvantage is that, there is thermal loss in transfer process in melt, and
Tundish is generally 25 DEG C of room temperature, and heat exchange can also occur with melt, therefore the true temperature of melt is when carrying out granulation experiment
Unknown.
(1) present invention arranges induction coil using the graphite crucible substitution tundish of bottom of which has holes around it, can be right
Melt in crucible carries out heating melting, insulation.This have the advantage that：Can be by the control device of induction furnace to sensing
Melt temperature accurate temperature controlling in stove, it is ensured that the accuracy of experiment；
(2) melt is without transfer, and without tundish, will not because thermal loss and caused by experimental error；
(3) induction coil layout is around graphite crucible, without single induction furnace, saves equipment cost, floor space
It is small.
Rotate granulation system：Including spray chamber 9, rotating disk 4, flange 5, connecting shaft 7, motor 12 and with frequency converter 13.
Spray chamber 9 has molten metal inlet, metallic particles outlet and air outlet slit, and the molten metal inlet is set
Put at the top of spray chamber 9, metallic particles exports the bottom for being arranged on spray chamber 9；
The injection rate and flow of injection molten metal and control molten metal, can also include being arranged on mist for convenience
Change the molten metal injecting structure on the outside of the roof of room 9；
As optimization, in order to observe the process of melt granulation, peep hole 24 can be set at the top of spray chamber 9, in order to
Solution granulation can be preferably recorded, high-speed camera 24, high-speed camera 24 can also be installed on the peep hole 24
Camera lens towards the bottom of spray chamber 9, the process for shooting solution granulation.
Preferentially, metallic particles exit design is loop configuration, and circumferentially disposed along the bottom wall of spray chamber 9.This structure is more
Be conducive to the quick metallic particles collected after cooling.The metallic particles outlet of annular is close to the upright side walls of spray chamber 9, and this is main
It is that, because metallic particles is after supercooling, can hit in the inner side of the upright side walls of spray chamber 9, then fall, metallic particles is gone out
The upright side walls that mouth is positioned close to spray chamber 9 quickly can be collected to metallic particles.
The rotating disk 4 and flange 5 are located inside spray chamber 9, and rotating disk 4 is fixed on the top of flange 5, rotating disk 4 and melting gold
Category inlet is oppositely arranged；Preferably, rotating disk 4 is that top diameter is more than the horn-like structure of base diameter, convenient to be located in rotating disk 4
Molten metal flown out from rotating disk open top, the metallic particles obtained by rotating disk granulated metal liquid, particle is uniform, spherical
Spend, in addition, metallic particles is prepared by rotating disk granulated metal liquid, can be by adjusting metal liquid flow, disk diameter
And rotating speed size controls the size of particle, production needs are met.
The outside of the bottom of rotating disk 4, which has on a circle shirt rim, shirt rim, has multiple mounting holes.Shirt rim and the setting of mounting hole
Primarily to more preferably, more securely by rotating disk being fixed on flange, prevent rotating disk and flange from relatively rotating as much as possible
Or it is mobile.
The connecting shaft 7 is arranged on the lower section of flange 5, and its top is fixedly connected with flange 5；The motor 12 with
Connecting shaft 7 is connected, and drive connection axle 7 is rotated along central shaft.
The frequency converter 13 is connected with motor 12, the rotating speed for controlling motor 12.The setting of frequency converter 13
Primarily to more facilitating the rotating speed of regulation motor 12, so as to according to different metallicities, adjust rotating disk
Rotating speed, adds the applicability of the device.
Air cooling system：Install and tie including air compressor 20, gas cylinder 15, multiple air nozzles 17 and air nozzle
Structure；
The gas vent of the air compressor 20 is connected by pipeline with the gas access of gas cylinder 15, the compression of gas cylinder 15
Gas vent is connected by tracheae 16 with the gas access of air nozzle 17；
The air nozzle mounting structure includes mounting bracket 8 and air distribution plate 3；The mounting bracket 8 is arranged on the outer of flange 5
Week；The air distribution plate 3 is fixed on the top of mounting bracket 8, and the air distribution plate 3 is loop configuration, and with multiple air nozzles peace
Hole 3-1 is filled, the multiple air nozzle mounting hole 3-1 is laid along air distribution plate 3 is circumferential, and multiple air nozzle mounting hole 3-1
Circle is located on the outside of the top edge of rotating disk 4 where the center of circle, by the compressed gas of ejection by from the top of rotating disk 4 sputter come metal
Particle is cooled down.
In order to avoid the air-flow of the ejection of air nozzle 17 is excessive, particle out will be granulated and blown on the roof of spray chamber 9,
Air nozzle 17 can be obliquely installed, and air nozzle 17 can be determined with inclination angle according to actual conditions.Specifically, air nozzle
17 can be parallel with the side wall of rotating disk 4, i.e., air nozzle 17 is equal with inclination angle with the side wall of rotating disk 4 with inclination angle, so that from air
The air-flow that nozzle 17 sprays is obliquely.During implementation, air nozzle can be adjusted according to heat transfer effect of the metallic particles with air
Quantity and air draught amount.
Metallic particles flies away from rotating disk from disk edge with very high speed, and with air streams contact, change of flight track makes
The flight time that metallic particles reaches spray chamber bottom is elongated, and metallic particles heat exchange is abundant, and temperature is dropped to below bonding temp, no
Can occur bonding phenomenon；Rotating disk granulation is combined with cooling air, compared with direct voltage gas produces metallic particles technique, institute
Need air without high pressure, can be reduced production cost；Rotating disk granulation is combined with cooling air, and metallic particles is from disk edge
Rotating disk is flown away from very high speed, and within the extremely short time and air streams contact, metal can be reduced to a certain extent
The degree of oxidation of particle surface.
Metallic particles collection structure：Including the first metallic particle collector 10；First metallic particle collector 10 is used
In collecting the metallic particles from the discharge of the bottom of spray chamber 9, when it is implemented, the first metallic particle collector can be arranged on into mist
Change the outside of room 9, and positioned at the bottom of spray chamber 9, the opening of the upper end of the first metallic particle collector 10 goes out with metallic particles
Mouth is relative；First metallic particle collector 10 is loop configuration, and the opening of its upper end is relative with the metallic particles outlet of annular, will
The metallic particles of whereabouts is collected wherein.
Use for laboratory melt dry granulation device also includes gas gathering system；
The metallic particle collector of collector 19 and second including hot-air；
The gas access of the collector 19 is connected by pipeline with the air outlet slit on spray chamber 9；
Second metallic particle collector is with being connected, the metallic particles produced for collecting dust-removing；
In order to be able to obtain the temperature of collected hot-air, and then waste heat recovery efficiency, use for laboratory melt can be calculated
Dry granulation device also includes temperature monitor 16；The temperature monitor 16 is arranged on gas access and the atomization of collector 19
On the pipeline between air outlet slit on room 9, for detecting the gas temperature collected.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (10)
1. a kind of use for laboratory melt dry granulation device, it is characterised in that：It is cold including induction furnace, rotation granulation system, air
But system, metallic particles collection structure and gas gathering system；
Induction furnace：Including induction coil (11), graphite crucible (2) and plug (1)；
The bottom of the graphite crucible (2), which has, is used for the hole that melt flows down, and the plug (1) is slidably matched with the hole；
The induction coil (11) is fixed by support, and lays circlewise structure, described for giving graphite crucible (2) heating
Graphite crucible (2) is arranged in the cyclic structure of induction coil (11) formation, graphite crucible (2) with induction coil (11) is coaxial sets
Put；
Rotate granulation system：Including spray chamber (9), rotating disk (4), flange (5), connecting shaft (7) and motor (12)；
The spray chamber (9) has molten metal inlet, metallic particles outlet and air outlet slit, the molten metal inlet
The top of spray chamber (9) is arranged on, metallic particles exports the bottom for being arranged on spray chamber (9)；
The rotating disk (4) and flange (5) are located at spray chamber (9) inside, and rotating disk (4) is fixed on the top of flange (5), rotating disk (4)
It is oppositely arranged with molten metal inlet；
The connecting shaft (7) is arranged on the lower section of flange (5), and its top is fixedly connected with flange (5)；
The motor (12) is connected with connecting shaft (7), and drive connection axle (7) is rotated along central shaft；
The induction furnace is arranged on the top of spray chamber (9), the top of spray chamber (9) and is provided with one around molten metal inlet
Refractory brick (6) is enclosed, the induction coil (11) and graphite crucible (2) are arranged on refractory brick (6)；
The hole of graphite crucible (2) bottom is coaxially disposed with molten metal inlet；
Air cooling system：Install and tie including air compressor (20), gas cylinder (15), multiple air nozzles (17) and air nozzle
Structure；
The gas vent of the air compressor (20) is connected by pipeline with the gas access of gas cylinder (15), the pressure of gas cylinder (15)
Contracting gas vent is connected by tracheae (16) with the gas access of air nozzle (17)；
The air nozzle mounting structure includes mounting bracket (8) and air distribution plate (3)；
The mounting bracket (8) is arranged on the periphery of flange (5)；
The air distribution plate (3) is fixed on the top of mounting bracket (8), and the air distribution plate (3) is loop configuration, and with multiple air
Nozzle mounting hole (3-1), the multiple air nozzle mounting hole (3-1) is circumferentially laid along air distribution plate (3), and multiple air nozzles
Circle is located on the outside of rotating disk (4) top edge where the center of circle of mounting hole (3-1)；
Metallic particles collection structure：Including the first metallic particle collector (10)；
First metallic particle collector (10) is used to collect the metallic particles discharged from spray chamber (9) bottom；
Gas gathering system：Collector (19) and the second metallic particle collector including hot-air；
The gas access of the collector (19) is connected by pipeline with the air outlet slit on spray chamber (9)；
Second metallic particle collector is with being connected, the metallic particles produced for collecting dust-removing.
2. use for laboratory melt dry granulation device as claimed in claim 1, it is characterised in that：The induction furnace also includes drawing
Flow tube (21)；
The top of the drainage tube (21) is detachably connected with graphite crucible (2) bottom, and drainage tube (21) and graphite crucible (2)
The hole of bottom is coaxially disposed.
3. use for laboratory melt dry granulation device as claimed in claim 2, it is characterised in that：The graphite crucible (2)
Bottom has hollow extension (2-1), and the extension (2-1) and the hole of graphite crucible (2) bottom are coaxially disposed；
The extension (2-1) is connected with the screw top of drainage tube (21).
4. use for laboratory melt dry granulation device as claimed in claim 3, it is characterised in that：Also include induction furnace switch board
(23)；
The induction furnace switch board (23) is realized by controlling the electric current in induction coil (11) and heats temperature to graphite crucible (2)
The control of degree.
5. the use for laboratory melt dry granulation device as described in claim 1-4, it is characterised in that：Also include high-speed camera
(24)；
The top of the spray chamber (9) has the peep hole (24) for being used for installing high-speed camera (24), the high-speed camera
(24) bottom of the camera lens towards spray chamber (9).
6. use for laboratory melt dry granulation device as claimed in claim 5, it is characterised in that：The gas gathering system is also
Including temperature monitor (16)；
The temperature monitor (16) is arranged between the air outlet slit on the gas access of collector (19) and spray chamber (9)
On pipeline, for detecting the gas temperature collected.
7. use for laboratory melt dry granulation device as claimed in claim 5, it is characterised in that：The metallic particles outlet is
Loop configuration, and it is circumferentially disposed along spray chamber (9) bottom wall.
8. use for laboratory melt dry granulation device as claimed in claim 5, it is characterised in that：First metallic particles is received
Storage (10) is loop configuration, is arranged on the outside of spray chamber (9), and positioned at the bottom of spray chamber (9), the first metallic particles is received
The opening of storage (10) upper end is relative with the metallic particles outlet of spray chamber (9) bottom.
9. use for laboratory melt dry granulation device as claimed in claim 5, it is characterised in that：The rotating disk (4) is top
Diameter is more than the horn-like structure of base diameter.
10. use for laboratory melt dry granulation device as claimed in claim 5, it is characterised in that：The rotation granulation system
Also include frequency converter (13), the frequency converter (13) is connected with motor (12), the rotating speed for controlling motor (12).
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| CN110305997A (en) * | 2019-07-30 | 2019-10-08 | 青岛大学 | A kind of molten slag granulating device with slag particle diameter monitoring function |
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| CN108588311A (en) * | 2018-03-27 | 2018-09-28 | 辽宁科技大学 | A kind of single clinker brin of focus tracking is broken into drip apparatus and method |
| CN110305997A (en) * | 2019-07-30 | 2019-10-08 | 青岛大学 | A kind of molten slag granulating device with slag particle diameter monitoring function |
| CN110305997B (en) * | 2019-07-30 | 2021-05-25 | 青岛大学 | Liquid molten slag granulating device with slag particle diameter monitoring function |
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