CN107998995A - A kind of device and method of gas-liquid mixed high-pressure atomization prepare compound dusty material - Google Patents
A kind of device and method of gas-liquid mixed high-pressure atomization prepare compound dusty material Download PDFInfo
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- CN107998995A CN107998995A CN201810028803.6A CN201810028803A CN107998995A CN 107998995 A CN107998995 A CN 107998995A CN 201810028803 A CN201810028803 A CN 201810028803A CN 107998995 A CN107998995 A CN 107998995A
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
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Abstract
The invention discloses a kind of device and method of gas-liquid mixed high-pressure atomization prepare compound dusty material, the source metal liquefaction device is located at the top of gas-liquid mixed high-pressure atomization screening system, the gas-liquid mixed high-pressure atomization screening system is connected to the spherical reacting furnace positioned at its side, coupled reaction gas in the spherical reacting furnace, the crystal grain fragmentation processor is located at the top and bottom of the liner of spherical reacting furnace, the gas circulation cooling device is located at the lower section of spherical reacting furnace, the compound powder grader is located at the afterbody of gas circulation cooling device, the fine powder staticizes depositing system and is located at after compound powder grader.The present invention has the advantages that efficient, cost is low and environment influences small, made compound powder powder material and then has that purity is high and particle is small, the characteristic such as uniform, solve thes problems, such as to synthesize infusible compound dusty material.
Description
Technical field
The present invention relates to a kind of PM technique, more particularly to a kind of gas-liquid mixed high-pressure atomization prepare compound
The device and method of dusty material.
Background technology
The compound-material of infusibility, because of its distinctive physical features and working characteristics, has extensive use in various fields,
It is metallurgical such as automobile, electronics, chemical industry etc..By taking nitrogen compound as an example, boron nitride (BN) can be used as heat safe lubricant, cut
Cut instrument and crucible material etc.；Titanium nitride (TiN) is a kind of ceramic material for having extreme hardness, is commonly used as coating material；Nitrogen
Change aluminium (AlN) because its is nontoxic non-conductive and has the thermal conductivity suitable with copper, be optimal insulation in packaging of photoelectric device, dissipate
Hot material；Gallium nitride (GaN) based alloy is the main material of blue laser and high-brightness LED device.
Since compound-material has the characteristic of superelevation fusing point, ultrahigh hardness and extremely low ductility, it is impossible to using traditional work
Skill is processed, the methods of can only using powder metallurgy.In the processing and manufacturing of infusible compound material, the preparation of powder is whole
The key of a industrial chain.The production method of known infusible compound powder includes：Carbothermic method, self-propagating combustion, machine
Tool polishing and sol-gal process etc..These processing methods are in addition to of high cost, and the infusible compound powder produced is also containing next
Serious pollution and impurity from raw material, handling implement and container etc..
Traditional aerosolization method is widely used to production elemental metals powder and prepares.This method utilizes nitrogen, argon gas
Etc. high-pressure air source as Alevaire, molten metal is broken into tiny molten drop, these tiny molten drops into
One step is condensed into tiny solid elemental metals powder.
Since infusible compound has easy decomposition and nonconducting characteristic under high fusing point and high temperature, although tradition,
Single gas atomization is widely used in the production of metal dust, but molten drop because of its generation or particle are larger, it is difficult to close
Into infusible compound dusty material that the reaction was complete, sufficient.
Gas atomization, it is easy to operate, cost is low, suitable for mass production.To liquid metal, using multistage atomizing or gas,
Liquid mixed high-voltage is atomized, and liquid metal is become fine drop or particle, by particle screen selecting, by fine molten drop or
Particle is reacted with reacting gas, by means such as powder grain fragmentation, spheroidization processing, easily generating that the reaction was complete,
Sufficient infusible compound dusty material.
The content of the invention
The technical problems to be solved by the invention are：How infusible compound dusty material is prepared, there is provided Yi Zhongqi
Liquid mixed high-voltage is atomized the device and method of prepare compound dusty material.
The present invention is to solve above-mentioned technical problem, a kind of gas-liquid mixed high pressure mist of the invention by the following technical programs
Change the device of prepare compound dusty material, including it is source metal liquefaction device, gas-liquid mixed high-pressure atomization screening system, spherical anti-
Stove, crystal grain fragmentation processor, gas circulation cooling device, compound powder particle sorter, fine powder is answered to staticize depositing system；
The source metal liquefaction device is located at the top of gas-liquid mixed high-pressure atomization screening system, source metal by heating,
Enter gas-liquid mixed high-pressure atomization screening system after liquefaction, form the molten drop of atomization, fine molten drop is in driving gas
Under the drive of stream, into spherical reacting furnace, and larger molten drop then drops down onto down gas-liquid mixed high-pressure atomization screening system
Bottom, recycling, be atomized again, and the gas-liquid mixed high-pressure atomization screening system is connected to the spherical reacting furnace positioned at its side,
Coupled reaction gas in the spherical reacting furnace, fine molten drop enters in spherical reacting furnace to react with reacting gas one
Compound crystal grain or particle are changed into, the crystal grain fragmentation processor is located at the top and bottom of the liner of spherical reacting furnace, leads
The reacting gas entered purges up and down along the inner wall of spherical reacting furnace, and the gas circulation cooling device is located under spherical reacting furnace
Side, less compound crystal grain or particle enter gas circulation cooling device under the driving of pressure, and larger particle residence is in ball
Discharged after continuing fragmentation in shaped reaction stove, compound powder, the compound are formed after compound crystal grain or particle cooling, solidification
Powder classifier is located at the afterbody of gas circulation cooling device, and the fine powder staticizes depositing system and is located at compound powder classification
After device, compound powder after cooling is by carrying out magnitude classification collection, fine or superfine change after screening, Electrostatic Absorption
Compound powder staticizes depositing system into fine powder and is handled, collects.
The source metal liquefaction device includes vacuum metal container, vacuum tank heater and water conservancy diversion with compression system
Pipe, the vacuum tank heater are arranged on around vacuum metal container, and the vacuum tank heater passes through resistance heating
Or electromagnetic induction heating liquefies the source metal in vacuum metal container, the diversion pipe is arranged on vacuum metal container
Bottom is used to source metal liquid being directed into gas-liquid mixed high-pressure atomization screening system.
Charged air induction passage, recycling molten metal passage are respectively equipped with the top of the vacuum metal container and is vacuumized logical
Road, is passed through inert gas argon gas, nitrogen in the charged air induction passage.
The gas-liquid mixed high-pressure atomization screening system includes recycling liquid container, recovered liquid reservoir heater, gas-liquid high pressure
Atomizer, air-flow round and liquid material recovery port；The gas-liquid high-pressure atomizer is arranged on the top of the recycling liquid container, described
Gas-liquid high-pressure atomizer connects source metal liquefaction device, and the recovered liquid reservoir heater is arranged on around recycling liquid container,
The bottom that the liquid material recovery port is arranged at recycling liquid container is atomized again for recycling the molten metal not being atomized, the air-flow row
Hole is arranged on the inner wall of recycling liquid container, and the air-flow of the air-flow round is spherical anti-for driving the metallic particles of atomization to enter
Answer in stove, and be not atomized, larger molten drop then drop down onto the bottom of recovered liquid container down.
The spherical reacting furnace includes reaction furnace internal-lining, reacting furnace heater, atomizing particle passage, compound particle passage
With larger particles discharge gate；The reaction furnace internal-lining is located at innermost layer, week of the reacting furnace heater positioned at reaction furnace internal-lining
Outside is enclosed, the both ends of the atomizing particle passage are respectively communicated with gas-liquid mixed high-pressure atomization screening system and reaction furnace internal-lining, institute
The both ends for stating compound particle passage are respectively communicated with the reaction gentle circulation cooling device of furnace internal-lining, and larger particles discharge gate is positioned at anti-
Answer the bottom of furnace internal-lining and be connected to gas circulation cooling device.
The crystal grain fragmentation processor includes multiple reaction gas passages and vibrator, and the reaction gas passage is uniformly divided
Cloth is arranged on the top and bottom of reaction furnace internal-lining, and the vibrator is arranged on the bottom of reaction furnace internal-lining, the reacting gas
Passage is straight hole or inclined hole, drives larger compound particle together with reacting gas in reaction reaction in furnace fragmentation.
The gas circulation cooling device is hollow cylindrical or conical stainless steel cooling chamber, the wall of the cooling chamber
Portion sets multiple spiral helicine cooling airways, and low pure or common inert gas, the cooling chamber are imported in the cooling airway
It is interior to import ultra-pure inert nitrogen gas as cooling medium.
The compound powder particle sorter includes sequentially connected screening filter and electrostatic adsorption device.
The compound powder is nitrogen base, epoxide, hydrogen-based, carbon-based, chloro, fluorine-based, boryl, sulfur-based compound material.
A kind of method using the device prepare compound powder, comprises the following steps：
(101) source metal is heated, becomes liquid；
(102) multistage fragmentation processing is carried out to the source metal of liquid, forms fine metal drop；
(103) fine metal drop is screened, fine metal drop is imported into compound reaction system；
(104) fine metal drop is reacted with reacting gas, fine metal drop is changed into compound crystal grain；
(105) by compound crystal grain fragmentation, reduce crystal grain and reunite with gathering；
(106) compound crystal grain is cooled into compound powder；
(107) compound powder screening, Electrostatic Absorption processing；
(108) superfine powder staticizes, deposits, collection is handled.
The present invention has the following advantages compared with prior art：The present invention has efficient, cost low and environment influence it is small
Advantage, made compound powder powder material then have that purity is high and particle is small, the characteristic such as uniform, efficiently solve synthesis infusibility
The problems such as reaction of compound powder powder material is not exclusively insufficient.
Brief description of the drawings
Fig. 1 is the reacting flow chart of the present invention；
Fig. 2 is the structure diagram of the present invention；
Fig. 3 is the structure diagram of source metal liquefaction device；
Fig. 4 is the structure diagram of gas-liquid mixed high-pressure atomization screening system；
Fig. 5 is the structure diagram of spherical reacting furnace；
Fig. 6 is the structure diagram of crystal grain fragmentation processor；
Fig. 7 is the structure diagram of gas circulation cooling device；
Fig. 8 is the structure diagram of compound powder particle sorter；
Fig. 9 is the structure diagram that fine powder staticizes depositing system.
Embodiment
Elaborate below to the embodiment of the present invention, the present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
As depicted in figs. 1 and 2, the preparation process of the present embodiment is as follows：
(101) source metal is heated, becomes liquid；
(102) multistage fragmentation processing is carried out to the source metal of liquid, forms fine metal drop；
(103) fine metal drop is screened, fine metal drop is imported into compound reaction system；
(104) fine metal drop is reacted with reacting gas, fine metal drop is changed into compound crystal grain；
(105) by compound crystal grain fragmentation, reduce crystal grain and reunite with gathering；
(106) compound crystal grain is cooled into compound powder；
(107) compound powder screening, Electrostatic Absorption processing；
(108) superfine powder staticizes, deposits, collection is handled.
Whole preparation facilities includes source metal liquefaction device 110, gas-liquid mixed high-pressure atomization screening system 120, spherical anti-
Answer stove 130, crystal grain fragmentation processor 140, gas circulation cooling device 150, compound powder particle sorter 160, fine powder
Staticize depositing system 170；
The source metal liquefaction device 110 is located at the top of gas-liquid mixed high-pressure atomization screening system 120, and source metal passes through
Enter gas-liquid mixed high-pressure atomization screening system 120 after heating, liquefaction, form the molten drop of atomization, fine molten drop
Under the drive of certain driving air-flow, into spherical reacting furnace 130, and larger molten drop then drops down onto down gas-liquid mixed high-pressure atomization
The bottom of screening system 120, recycling, be atomized again, and the gas-liquid mixed high-pressure atomization screening system 120 is connected to positioned at its side
The spherical reacting furnace 130 on side, coupled reaction gas in the spherical reacting furnace 130, fine molten drop enter spherical reaction
React in stove 130 with reacting gas one and change into compound crystal grain or particle, the crystal grain fragmentation processor 140 is positioned at spherical
The top and bottom of the liner of reacting furnace 130, the reacting gas of importing purge up and down along the inner wall of spherical reacting furnace 130, institute
State the driving of the lower section that gas circulation cooling device 150 is located at spherical reacting furnace 130, less compound crystal grain or particle in pressure
Lower to enter gas circulation cooling device 150, larger particle residence is discharged after continuing fragmentation in spherical reacting furnace 130, compound
Compound powder is formed after crystal grain or particle cooling, solidification, the compound powder grader is located at gas circulation cooling device 150
Afterbody, the fine powder staticizes depositing system 170 and is located at after compound powder grader, compound powder after cooling
By carrying out magnitude classification collection after screening, Electrostatic Absorption, fine or superfine compound powder staticizes into fine powder
Depositing system 170 is handled, collected.
As shown in figure 3, the source metal liquefaction device 110 includes the vacuum metal container 211 with compression system, vacuum
Reservoir heater 212 and diversion pipe 216, the vacuum tank heater 212 are arranged on around vacuum metal container 211, institute
Vacuum tank heater 212 is stated to carry out the source metal in vacuum metal container 211 by resistance heating or electromagnetic induction heating
Liquefaction, the bottom that the diversion pipe 216 is arranged on vacuum metal container 211 are used to source metal liquid being directed into gas-liquid mixed height
Pressure atomization screening system 120.
Vacuum metal container 211 is cylinder or cone, is made of high temperature resistant, not easily broken material.
The heating means of source metal are specially resistance heating, electromagnetic induction heating.It is required that heating-up temperature is higher than source metal
Melting temperature, to reduce the viscosity of liquid metals, avoids the spray of diversion pipe 216 and gas-liquid mixed high-pressure atomization screening system 120
Pipe, the blocking of nozzle.
Vacuum tank heater 212 heats for resistance-type, and cost is low, but firing rate is slow；Vacuum tank heater 212 is
Induction heating, firing rate is fast, but of high cost.It can be made choice with specific reference to needs.
The top of the vacuum metal container 211 is respectively equipped with charged air induction passage 214,213 and of recycling molten metal passage
Evacuation passageway 215, is passed through inert gas argon gas, nitrogen in the charged air induction passage 214.Recycle molten metal passage 213, position
Above vacuum metal container 211, molten metal not being atomized, being recycled by recycling liquid container, by recycling molten metal passage 213
Import in vacuum metal container 211, be atomized again.
Charged air induction passage 214, above vacuum metal container 211, imports inert gas (such as nitrogen, argon gas), right
The liquid of vacuum metal container 211 applies pressure, the liquid in vacuum metal container 211 is smoothly entered by diversion pipe 216
Gas-liquid mixed high-pressure atomization screening system 120.
Evacuation passageway 215, above vacuum metal container 211, by evacuation passageway 215, to source metal vacuum
Container vacuum-pumping.
Diversion pipe 216, positioned at the lower section of vacuum metal container 211, is made of high temperature resistant.216 inner wall smooth of diversion pipe, is not easy
Adhesion source metal.
In addition, heating is carried out to source metal makes its liquefied process, carry out under vacuum first, then keep permanent
Temperature, and protected with inert gas (nitrogen, argon gas), it is ensured that do not polluted by foreign gas in liquid metal source.Meanwhile import enough
Inert gas, the pressure kept constant to the surface in liquid metal source, makes liquid metal by diversion pipe 216, smoothly into gas
Liquid mixed high-voltage is atomized screening system 120.
As shown in figure 4, the gas-liquid mixed high-pressure atomization screening system 120 includes recycling liquid container 321, recycling liquid container
Heater 322, gas-liquid high-pressure atomizer 323, air-flow round 324 and liquid material recovery port 325；The gas-liquid high-pressure atomizer 323
The top of the recycling liquid container 321 is arranged on, the gas-liquid high-pressure atomizer 323 connects source metal liquefaction device 110, described
Recovered liquid reservoir heater 322 is arranged on around recycling liquid container 321, and the liquid material recovery port 325 is arranged at recovered liquid appearance
The bottom of device 321 is used for the molten metal that recycling is not atomized and is atomized again, and the air-flow round 324 is arranged on recycling liquid container 321
Inner wall on, the air-flow of the air-flow round 324 is used to drive the metallic particles of atomization to enter in spherical reacting furnace 130, and not
Atomization, larger molten drop then drops down onto down the bottom of recovered liquid container 321.
Liquid container 321 is recycled as cylinder or cone, is made of heat safe material.
Recovered liquid reservoir heater 322, positioned at the periphery of recycling liquid container 321, mode of heating：Resistance-type heats, electromagnetism
Induction type heats.Resistance-type heats, and cost is low, but firing rate is slow；And induction heating, firing rate are fast, but cost
Height, can make choice according to actual needs.It is required that heating-up temperature is higher than the melting temperature of source metal, recovered liquid material container is kept
Interior molten metal mobility, to recycle, then is atomized.
Gas-liquid high-pressure atomizer 323, is fixed on the top of recycling liquid container 321, convenient dismounting, cleaning, replace, by resistance to height
Warm, corrosion-resistant, not easily broken material is made.
Air-flow round 324, positioned at the opposite of 433 inlet of atomizing particle passage, is uniformly distributed, and is embedded in recycling liquid container
On 321 inner wall.
Liquid material recovery port 325, positioned at the outside of 321 bottom of recycling liquid container, facilitates liquid material to recycle.
In gas-liquid high-pressure atomizer 323, gases at high pressure and the source metal liquid that imports are at the same time into a circle, hollow
High pressure mixing room in, source metal liquid is struck on the inner wall of mixing chamber, is broken into droplet, droplet is in high pressure draught
Under impact and shock, fine drop is formed, and is sufficiently mixed with gas, at narrow jet pipe, nozzle, is erupted, is formed
Fine, mist state metallic particles or drop.The atomization of the pressure control source molten metal of jet pipe, the size thickness of nozzle and gas
Effect；Jet pipe, nozzle are larger, and atomizing effect is poor, and smaller, unsmooth flowing, easily block；When gas pressure is big, atomizing effect is good,
But in diversion pipe 216, source metal is easily caused to flow backwards.
Air-flow round 324 is located at the opposite for the atomizing particle passage 433 for being used to connect spherical reacting furnace 130, gas used
Body is inert gas (nitrogen or argon gas).Size, the structure of air-flow round 324 influence flow, flow velocity and the direction of air-flow, at the same time
Control enters the size, how many of the atomizing particle in spherical reacting furnace 130.
As shown in figure 5, the spherical reacting furnace 130 includes reaction furnace internal-lining 431, reacting furnace heater 432, atomizing particle
Passage 433, compound particle passage 434 and larger particles discharge gate 435；The reaction furnace internal-lining 431 is located at innermost layer, described
Positioned at the outer circumference of reaction furnace internal-lining 431, the both ends of the atomizing particle passage 433 are respectively communicated with reacting furnace heater 432
Gas-liquid mixed high-pressure atomization screening system 120 and reaction furnace internal-lining 431, the both ends of the compound particle passage 434 connect respectively
The logical reaction gentle circulation cooling device 150 of furnace internal-lining 431, larger particles discharge gate 435 are located at the bottom of reaction furnace internal-lining 431 simultaneously
It is connected to gas circulation cooling device 150.
Reaction furnace internal-lining 431 is spherical or hemispherical, positioned at the center of inside of spherical reacting furnace 130, by heat-resisting material
It is made.
Use reaction furnace internal-lining 431 inner wall smooth, without dead angle, compound crystal grain or particle reaction gas flow purging
Under, it is more difficult on the inner wall for adhering to or being collected at reaction furnace internal-lining 431.
Reacting furnace heater 432, is specially resistance heating, electromagnetic induction heating.Temperature adjustment in spherical reacting furnace 130
In the range of reaction temperature of compound, it is compound crystal grain or particle to make fine molten drop favourable conversions.
Atomizing particle passage 433 is located between gas-liquid mixed high-pressure atomization screening system 120 and spherical reacting furnace 130, mist
Change 433 inside inner wall smooth of particle path, be not easy to adhere to atomizing particle.
Compound particle passage 434, by the middle lower curtate connection gas circulation cooling device 150 of spherical reacting furnace 130, compound
434 inside inner wall smooth of particle path, is not easy adhesion compounds particle.
Larger particles discharge gate 435, positioned at the outside of spherical 130 bottom of reacting furnace.When spherical reacting furnace 130 work it is specific
After time, the automatic or artificial larger compound particle by delay imports gas circulation cooling device 150.
As shown in fig. 6, the crystal grain fragmentation processor 140 includes multiple reaction gas passages and vibrator 543, it is described anti-
Gas passage is answered to be uniformly set at the top and bottom of reaction furnace internal-lining 431, the vibrator 543 is arranged in reacting furnace
The bottom of courage 431, the reaction gas passage are straight hole or inclined hole, drive larger compound particle together with reacting gas
React reaction in furnace fragmentation.
Reaction gas passage includes upper purging round 541 and lower purging round 542, and upper purging round 541 is embedded in reaction
Around the top of furnace internal-lining 431,433 exit of atomizing particle passage, it is uniformly distributed as ring-type；
Lower purging round 542 is embedded in the reaction bottom of furnace internal-lining 431, around larger particles discharge gate 435, uniformly point
Cloth is ring-type.
Reaction gas passage is positioned at the top and bottom of reaction furnace internal-lining 431, and evenly distributed is ring-type, in reacting furnace
The reaction gas passage at the top of courage 431 is arranged on around 433 exit of atomizing particle passage, and positioned at the reacting gas of bottom
Passage is arranged on around larger particles discharge gate 435, the reaction gas flow of importing along the inner wall of reaction furnace internal-lining 431 from upper and
Lower and rotation from bottom to top, opposite purging, increase the chance mutually hit, rubbed between compound crystal grain or particle, reductionization
The adhesion of compound crystal grain or particle on spherical 130 inner wall of reacting furnace is with gathering.Meanwhile increase molten drop (particle) particle with
The chance contacted between reacting gas.
Vibrator 543 is mechanical vibrator, ultrasonic vibrator, positioned at the outside of 431 bottom of reaction furnace internal-lining, adjustment vibration
The amplitude and frequency of device 543, the height of control compound particle floating, the dynamics hit and its rhythm.With it is upper and lower multi-faceted
Under the collective effect of reaction gas flow, compound crystal grain (particle) reaction furnace internal-lining 431 in vertical bounce, left rotation and right rotation, mutually
Shock/friction, makes its fragmentation, spheroidization, makes its reaction fully, completely.
As shown in fig. 7, the gas circulation cooling device 150 is hollow cylindrical or conical stainless steel cooling chamber
651, multiple spiral helicine cooling airways 652, the cooling airway 652 are set between the inside and outside layer of wall portion of the cooling chamber 651
It is interior to import low pure or common inert gas, import ultra-pure inert nitrogen gas in the cooling chamber 651 and be situated between as cooling
Matter.
The inside and outside layer sealing welding of wall portion of cooling chamber 651, inner wall smooth, is not easy adhesion compounds powder.The cooling used
Gas is inert gas (such as nitrogen).
Cooling airway 652, cooling gas import and export intersect, are uniformly distributed, and uniformly cool down the inside and outside wall of cooling chamber 651.
When compound particle (crystal grain) passes through gas circulation cooling device 150, it is set to be cooled to compound powder rapidly.
Compound particle passage 434, be connected to by the top of gas circulation cooling device 150 in spherical reacting furnace 130, on
Portion, inner wall smooth, is not easy adhesion compounds particle.
Water jacket or oil jacket are replaced using gas circulation cooling device 150, reduces water, oil component passes through cooling system inside
The osmosis pollution of compound powder, gas used are inert gas (nitrogen).Air-casing is internally provided with cooling airway 652, lazy
Property gas uniformly cools down the inside and outside wall of whole gas circulation cooling device 150 along cooling airway 652.
As shown in figure 8, the compound powder particle sorter 160 includes sequentially connected screening filter 761 and quiet
Electro Sorb device 762.
Sieve filter 761, be specially mesh or granular membrane, mesh it is direct according to specific standard formulation.Change
Compound crystal grain or particle are by becoming compound powder after cooling, large volume of compound powder is by screening filter 761
When be blocked, and collect.
Electrostatic adsorption device 762, when compound powder with gas by when, make gas ionization using electrostatic field so that change
Compound powder belt Electro Sorb is then collected on electrode plate.
Compound powder particle sorter 160 also has compound powder passage 763 and fine powder passage 764, described
Compound powder passage 763 connects gas circulation cooling device 150 and compound powder grader, is hollow cylindrical, by stainless
Steel material is made；
The fine powder passage 764 is located at compound powder particle sorter 160 and staticizes depositing system with fine powder
Between 170, hollow cylindrical, is made of stainless steel material.
Compound powder after cooling is handled by screening and Electrostatic Absorption, and larger particle is slowly fallen, according to setting
Standard (granularity), classify, but fine compound powder can not be intercepted, classified, the emptying of traditional method, bleed off.
In the present apparatus, fine compound powder float with air-flow staticize into next stage fine powder, deposition processes.
It is made of as shown in figure 9, fine powder staticizes depositing system 170 a high pressure sealing tank 871 and coherent detection instrument.
High pressure sealing tank 871 is one large-scale, sealed shell of tank, inner wall smooth, compound powder are not easy made of stainless steel
Adhesion, easy cleaning.In order to ensure normal work, maintenance staticizes, the pressure in deposition processor is less than compound powder grader
The pressure of outlet.
High pressure sealing tank 871, positioned at the tail end of package unit, cylinder or cone, are made, inner wall of stainless steel material
It is smooth, easily clean, be not easy adhesion compounds powder.Before fine compound powder is imported, high pressure sealing tank 871 cleans
Totally, and vacuumize.
Drain tap 872 is set positioned at the top of high pressure sealing tank 871, drain tap 872 is made of stainless steel material.Work as essence
Thin compound powder staticizes in high pressure sealing tank 871, deposit a period of time after, fine compound powder slowly declines
To the bottom of high pressure sealing tank 871, after slowly opening drain tap 872, the air pressure in hermetically sealed can is set to be down to normal pressure state；Protection
The gas discharged well, can make reacting gas use after boosting.
In the bottom of high pressure sealing tank 871, fine powder collection port 873 is set, with the help of vacuum equipment, fine
Compound powder imports collecting tank, and subpackage, vacuum storage, slow in one's movements, handles with care.Compound powder manufactured in the present embodiment
End can be nitrogen base, epoxide, hydrogen-based, carbon-based, chloro, fluorine-based, boryl, sulfur-based compound material.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of device of gas-liquid mixed high-pressure atomization prepare compound dusty material, it is characterised in that liquefy including source metal
Equipment, gas-liquid mixed high-pressure atomization screening system, spherical reacting furnace, crystal grain fragmentation processor, gas circulation cooling device, compound
Powder particle grader, fine powder staticize depositing system；
The source metal liquefaction device is located at the top of gas-liquid mixed high-pressure atomization screening system, and source metal is by heating, liquefaction
Enter gas-liquid mixed high-pressure atomization screening system afterwards, form the molten drop of atomization, fine molten drop is in certain driving air-flow
Under drive, into spherical reacting furnace, and larger molten drop then drops down onto down the bottom of gas-liquid mixed high-pressure atomization screening system,
Recycling, be atomized again, and the gas-liquid mixed high-pressure atomization screening system is connected to the spherical reacting furnace positioned at its side, the ball
Coupled reaction gas in shaped reaction stove, fine molten drop, which enters in spherical reacting furnace to react with reacting gas one, to be changed into
Compound crystal grain or particle, the crystal grain fragmentation processor are located at the top and bottom of the liner of spherical reacting furnace, importing it is anti-
Gas is answered to be purged up and down along the inner wall of spherical reacting furnace, the gas circulation cooling device is located at the lower section of spherical reacting furnace, compared with
Small compound crystal grain or particle enter gas circulation cooling device under the driving of pressure, and larger particle residence is in spherical reaction
Discharged after continuing fragmentation in stove, compound powder, the compound powder point are formed after compound crystal grain or particle cooling, solidification
Class device is located at the afterbody of gas circulation cooling device, the fine powder staticize depositing system be located at compound powder grader it
Afterwards, compound powder after cooling is by carrying out magnitude classification collection, fine or superfine compound after screening, Electrostatic Absorption
Powder staticizes depositing system into fine powder and is handled, collects.
2. a kind of device of gas-liquid mixed high-pressure atomization prepare compound dusty material according to claim 1, its feature
It is, the source metal liquefaction device includes vacuum metal container, vacuum tank heater and diversion pipe with compression system,
The vacuum tank heater is arranged on around vacuum metal container, and the vacuum tank heater passes through resistance heating or electricity
The source metal in vacuum metal container is liquefied in magnetic induction heating, and the diversion pipe is arranged on the bottom of vacuum metal container
For source metal liquid to be directed into gas-liquid mixed high-pressure atomization screening system.
3. a kind of device of gas-liquid mixed high-pressure atomization prepare compound dusty material according to claim 2, its feature
It is, charged air induction passage, recycling molten metal passage and evacuation passageway, institute is respectively equipped with the top of the vacuum metal container
State and inert gas argon gas, nitrogen are passed through in charged air induction passage.
4. a kind of device of gas-liquid mixed high-pressure atomization prepare compound dusty material according to claim 1, its feature
It is, the gas-liquid mixed high-pressure atomization screening system includes recycling liquid container, recovered liquid reservoir heater, gas-liquid high-pressure atomization
Device, air-flow round and liquid material recovery port；The gas-liquid high-pressure atomizer is arranged on the top of the recycling liquid container, the gas-liquid
High-pressure atomizer connects source metal liquefaction device, and the recovered liquid reservoir heater is arranged on around recycling liquid container, described
The bottom that liquid material recovery port is arranged at recycling liquid container is atomized again for recycling the molten metal not being atomized, and the air-flow round is set
Put on the inner wall of recycling liquid container, the air-flow of the air-flow round is used to drive the metallic particles of atomization to enter spherical reacting furnace
It is interior, and be not atomized, larger molten drop then drop down onto the bottom of recovered liquid container down.
5. a kind of device of gas-liquid mixed high-pressure atomization prepare compound dusty material according to claim 1, its feature
Be, the spherical reacting furnace include reaction furnace internal-lining, reacting furnace heater, atomizing particle passage, compound particle passage and
Larger particles discharge gate；The reaction furnace internal-lining is located at innermost layer, and the reacting furnace heater is around reaction furnace internal-lining
Outside, the both ends of the atomizing particle passage are respectively communicated with gas-liquid mixed high-pressure atomization screening system and reaction furnace internal-lining, described
The both ends of compound particle passage are respectively communicated with the reaction gentle circulation cooling device of furnace internal-lining, and larger particles discharge gate is positioned at reaction
The bottom of furnace internal-lining is simultaneously connected to gas circulation cooling device.
6. a kind of device of gas-liquid mixed high-pressure atomization prepare compound dusty material according to claim 5, its feature
It is, the crystal grain fragmentation processor includes multiple reaction gas passages and vibrator, and the reaction gas passage is uniformly distributed
The top and bottom of reaction furnace internal-lining are arranged on, the vibrator is arranged on the bottom of reaction furnace internal-lining, and the reacting gas leads to
Road is straight hole or inclined hole, drives larger compound particle together with reacting gas in reaction reaction in furnace fragmentation.
7. a kind of device of gas-liquid mixed high-pressure atomization prepare compound dusty material according to claim 1, its feature
It is, the gas circulation cooling device is hollow cylindrical or conical stainless steel cooling chamber, the wall portion of the cooling chamber
Multiple spiral helicine cooling airways are set between inside and outside layer, low pure or common inert gas, institute are imported in the cooling airway
State and ultra-pure inert nitrogen gas is imported in cooling chamber as cooling medium.
8. a kind of device of gas-liquid mixed high-pressure atomization prepare compound dusty material according to claim 1, its feature
It is, the compound powder particle sorter includes sequentially connected screening filter and electrostatic adsorption device.
9. a kind of device of gas-liquid mixed high-pressure atomization prepare compound dusty material according to claim 1, its feature
It is, the compound powder is nitrogen base, epoxide, hydrogen-based, carbon-based, chloro, fluorine-based, boryl, sulfur-based compound material.
A kind of 10. method using such as claim 1~9 any one of them device prepare compound powder, it is characterised in that
Comprise the following steps：
(101) source metal is heated, becomes liquid；
(102) multistage fragmentation processing is carried out to the source metal of liquid, forms fine metal drop；
(103) fine metal drop is screened, fine metal drop is imported into compound reaction system；
(104) fine metal drop is reacted with reacting gas, fine metal drop is changed into compound crystal grain；
(105) by compound crystal grain fragmentation, reduce crystal grain and reunite with gathering；
(106) compound crystal grain is cooled into compound powder；
(107) compound powder screening, Electrostatic Absorption processing；
(108) superfine powder staticizes, deposits, collection is handled.
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