CN109879059A - A kind of fine powder conveying device - Google Patents
A kind of fine powder conveying device Download PDFInfo
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- CN109879059A CN109879059A CN201910329351.XA CN201910329351A CN109879059A CN 109879059 A CN109879059 A CN 109879059A CN 201910329351 A CN201910329351 A CN 201910329351A CN 109879059 A CN109879059 A CN 109879059A
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- powder
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- conveying device
- gas
- feed bin
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- 239000000843 powder Substances 0.000 title claims abstract description 148
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 230000002708 enhancing effect Effects 0.000 claims abstract description 6
- 239000011812 mixed powder Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 5
- 241000486406 Trachea Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Air Transport Of Granular Materials (AREA)
- Accessories For Mixers (AREA)
Abstract
The present invention relates to powder delivery application fields; especially a kind of fine powder conveying device; including feed bin, transmission device, mixer and High-Pressure Gas System; feed bin connects transmission device; conveying device conveys powder to mixer; High-Pressure Gas System is connected to feed bin, conveying device and mixer, for mixed-powder, the discharging of enhancing flow of powder and protection conveying device, it is characterised in that: be equipped with powder gas mixed structure in the mixer.Pass through the setting of powder mixed structure, convenient for being uniformly mixed for powder and gas, improve the gap between powder, to improve the mobility of powder, convenient for the discharging of powder, air pressure in mixer simultaneously is greater than the air pressure outside mixer and forms thrust, the further raising convenient for powder discharging efficiency to powder discharging process.
Description
Technical field
The present invention relates to powder delivery application field, especially a kind of fine powder conveying device.
Background technique
Powder conveying, which refers to, is transferred to certain position with certain speed for powder.Due to the characteristic of powder: humidity is glued
Degree, mobility, density, bulk density, granularity etc. are different, and powder is thinner, and easier reunion, mobility is poorer, this
Cause powder conveying technique and not perfect.According to characteristic and requirement that powder conveys, common powder conveying device is as follows:
Scraper-type dispenser is placed a fixed scraper plate on powder disk, is rotated with viscid disk, scraper plate will be accumulated on powder disk
Powder scrape into funnel, this require powder have good mobility and spherical shape, fine powder is usually not suitable for.
Screw powder feeder is rotated by screw rod and powder is driven to move along powder bucket spiral inner wall slot, and this mode can be accurate
Powder sending quantity is controlled, but is not suitable for the different powder of specific gravity different mixed-powder and granularity, and be easy stifled powder.
Atomization type powder feeder, powder feeding gas are sprayed from the nozzle at high speeds of diameter very little, and the local depression generated by it makes powder
It sucks in flour extraction pipe.Powder sending quantity is realized by the distance between air inlet pipe and flour extraction pipe and gas flow, it is this suitable for than
The lighter powder of weight, and tolerance cannot be adjusted arbitrarily and cause powder sending quantity that cannot arbitrarily adjust.
Vacuum conveyor forms high negative pressure area by vacuum pump in the duct, and entrance material is sucked by air-flow, with air-flow
It is transported to and formulates position.This conveyer can only be directed to the powder or granular material of larger particles, and fine powder is be easy to cause
Stifled powder, and flow is difficult to control.
Summary of the invention
The object of the present invention is to overcome the above-mentioned deficiency of the prior art, and provide a kind of enhancing flow of powder, convenient for powder
Conveying and the high fine powder conveying device of transfer efficiency.
The technical scheme is that a kind of fine powder conveying device, including feed bin, transmission device, mixer and high pressure
Gas system, feed bin connect transmission device, and conveying device conveys powder to mixer, High-Pressure Gas System and feed bin, conveying and fills
It sets and is connected to mixer, for mixed-powder, the discharging of enhancing flow of powder and protection conveying device, is equipped in the mixer
Powder gas mixed structure.
Further, the powder gas mixed structure be multilayered structure, including for evenly dispersed air-flow equal drift net, be used for powder
The hybrid network of gas mixing and the equal powder net mixed for powder gas, hybrid network is between equal drift net and equal powder net.
Further, the equal drift net, hybrid network and equal powder are equipped with pulse on the net.
Further, the High-Pressure Gas System includes air inlet pipe and the three-way valve that connect with air inlet pipe, three-way valve
Both ends be respectively communicated with and control the first gas circuit and the second gas circuit, the first gas circuit connects mixer discharge port by straight pipe, the
Two gas circuits are separately connected feed bin and mixer by gas transmission threeway.
Further, the three-way valve and gas transmission threeway connects by conveying tracheae, gas transmission threeway by balance tracheae and
Feed bin connection.
Further, gas inlet adapter is equipped at the top of the mixer, inlet attack connects defeated by powder mixture pipe
Gas threeway, side are equipped with the feed inlet being connected to transmission device, and lower end is equipped with outlet connection, and outlet connection connects mixer outlet
Pipe.
Further, the mixer device outlet lower end is equipped with discharge port threeway, and one end connection of discharge port threeway is straight-through
It manages, non-return valve is set on straight pipe, and other end connection discharge port is for discharging.
Further, the feed bin top is equipped with inlet suction port, inlet suction port upper end and balance tracheae, and lower end connection is porous
Pipe, bin bottom are equipped with relief hole, and relief hole connects transmission device.
Further, the transmission device includes driving motor and feeder, and feeder is connected by shaft coupling and driving motor
It connects;Feeder is cylindrical, and tail portion uses seal cap sealing, and front end is connected to mixer, and screw rod, screw rod are arranged inside feeder
Tail portion is screw shaft, and screw shaft is connect by keyway with driving motor;Driving motor is equipped with electric machine main shaft, electric machine main shaft and connection
The connection of axis device, connector connect keyway.
Further, cylinder seal groove, placing tube O-ring in slot is arranged in the sealing cover, and screw shaft is mounted in sealing cover
On heart hole, sealing slot is arranged in installation position, places axis O-ring in slot;Spiral blade, helical form is arranged in the screw rod periphery
Blade presses 10 ° -60 ° angles and 5mm -100mm spacing spiral distribution, and spiral blade outside diameter is less than feeder internal diameter
0.2-0.3mm。
The present invention has a characteristic that
1, the setting of powder mixed structure improves the gap between powder, to improve convenient for being uniformly mixed for powder and gas
The mobility of powder, the air pressure that the air pressure convenient for the discharging of powder, while in mixer is greater than outside mixer discharged to powder
Journey forms thrust, the further raising convenient for powder discharging efficiency, the stifled powder problem of effective solution.
2, in the case where not needing to throw powder, three-way valve is connected to the first gas circuit, compressed air is entered by air inlet pipe,
It is come out from discharge port, in discharge outlet under hot environment or under high-pressure environment, compressed air can be to whole device at this time
It shields;In the case where needing to throw powder, three-way valve is connected to the second gas circuit, can be in compressed air pressure for powder
Under the action of make powder keep rarefaction, increase the mobility of powder.
3, in feed bin antipriming pipe setting, make to keep static positive pressure P1 in cabin, can be under the effect of the pressure for powder
So that powder is kept rarefaction, increase the mobility of powder, air pressure is P2 in material delivery pipe road, due to Multilayer Network in mixer
So that transfer pipeline is had larger crushing, so that P1 is greater than P2, guarantees that powder can be released smoothly, and increase convenient for powder flowbility.
4, the setting of screw rod is convenient for powder and gas mixing convenient for conveying to powder in transmission process, enhance powder
Mobility, further mixed with gas convenient for powder.
Detailed construction of the invention is further described below in conjunction with the drawings and specific embodiments.
Detailed description of the invention
Fig. 1-is fine powder conveying device cross-sectional view of the structure of the present invention;
Fig. 2-is the schematic enlarged-scale view of fine powder conveying device structure feed bin and mixer in Fig. 1;
Fig. 3-is part A partial enlarged view in Fig. 2;
1-air inlet pipe, 2-three-way valves, 3-straight pipes, 4-non-return valves, 5-discharge ports, 6-discharge port threeways, 7-mixing
Device outlet, 8-mixers, 9-feeders, 10-screw rods, 11-driving motors, 12-shaft couplings, 13-sealing covers, 14-
Feed bin, 15-powder mixture pipes, 16-balance tracheaes, 17-gas transmission threeways, 18-conveying tracheaes, 19-inlet attacks,
20-equal drift nets, 21-hybrid networks, 22-equal powder nets, 23-outlet connections, 24-spiral blades, 25-relief holes, 26-
Axis O-ring, 27-sealing slots, 28-screw rod, 10 axis, 29-electric machine main shafts, 30-cylinder seal grooves, 31-cylinder O-rings, 32-
Antipriming pipe, 33-feed bin inlet suction ports.
Specific embodiment
As shown in Fig. 1-3: a kind of fine powder conveying device, including feed bin 14, transmission device, mixer 8 and high pressure gas
System, feed bin 14 connect transmission device, and conveying device conveys powder to mixer 8, High-Pressure Gas System and feed bin 14, conveying and fills
It sets and is connected to mixer 8, for mixed-powder, the discharging of enhancing flow of powder and protection conveying device, be equipped with powder in mixer 8
Gas mixed structure.
Powder gas mixed structure be multilayered structure, including for evenly dispersed air-flow equal drift net 20, for powder gas mixing
Hybrid network 21 and the equal powder net 22 mixed for powder gas, hybrid network 21 are located between equal drift net 20 and powder net 22, equal drift net 20
Setting convenient for the balance of pressure between feed bin 14 and mixer 8, conveyed in mixer 8 convenient for powder in transmission device,
Convenient for the raising of transfer efficiency, while convenient for stopping powder in mixer 8 up to flow;The setting of powder gas mixed structure is convenient for will
Powder is uniform with gas mixing, convenient for improving the mobility of powder.
Pulse is equipped on equal drift net 20, hybrid network 21 and equal powder net 22, the setting of pulse is convenient for reduction powder each
Online overstocks, while preventing overstocked powder from resulting in blockage to net, while uniform convenient for powder and gas mixing.
Powder gas mixed structure can also use the leachy blender (not shown) of inner hollow band, and stirring while can
Enhance the mixing of powder and gas, convenient for the flowing in the powder of enhancing gas, further enhance powder and gas mixing and
The mobility of powder, the upper end of blender are equipped with porous masses, and aperture is less than the partial size of powder, convenient for feed bin 14 and mixer 8
The balance of interior pressure, while convenient for stopping the powder in mixer 8 up to flow.
High-Pressure Gas System includes air inlet pipe 1 and the three-way valve connecting with air inlet pipe 12, air inlet pipe 1 and compressed air
The pressure of gas source connection, compressed air is greater than 5000Pa, flow 20L/min -5000L/min;Distinguish at the both ends of three-way valve 2
It is connected to and controls the first gas circuit and the second gas circuit, under the control of three-way valve, air inlet pipe 1 can only be with connecing in this two tunnel all the way
It is logical;First gas circuit connects 8 discharge port 5 of mixer by straight pipe 3, and the second gas circuit is separately connected feed bin 14 by gas transmission threeway 17
With mixer 8.
Three-way valve 2 is connect with gas transmission threeway 17 by conveying tracheae 18, and gas transmission threeway 17 passes through balance tracheae 16 and material
Storehouse 14 is connected to.
Gas inlet adapter 19 is equipped at the top of mixer 8, inlet attack 19 connects gas transmission three by powder mixture pipe 15
Logical 17,8 side of mixer is equipped with the feed inlet being connected to transmission device, and 8 lower end of mixer is equipped with outlet connection 23, outlet connection
23 connection mixer outlet pipes 7.
8 device outlet lower end of mixer is equipped with discharge port threeway 6, and one end of discharge port threeway 6 connects straight pipe 3, leads directly to
Non-return valve 4 is set on pipe 3, only air-flow is allowed to flow to export direction by entrance;Other end connection discharge port 5 is for discharging.
14 top of feed bin is equipped with inlet suction port, inlet suction port upper end and balance tracheae 16, and lower end connects antipriming pipe 32, works as material
After 14 feeding of storehouse, antipriming pipe 32 is in inside powder, is distributed in each corner in feed bin 14 convenient for compressed air, is made in feed bin 14
Air pressure keep balance;14 bottom of feed bin is equipped with relief hole 25, and relief hole 25 connects transmission device.
Transmission device includes driving motor 11 and feeder 9, and feeder 9 is connect by shaft coupling 12 with driving motor 11;
Feeder 9 is cylindrical, and tail portion is sealed using sealing cover 13, and front end is connected to mixer 8, and feeder 9 leans on caudal one end
It is connected to relief hole 25;Screw rod 10 is set inside feeder 9, and 10 tail portion of screw rod is 10 axis 28 of screw rod, and 10 axis 28 of screw rod passes through keyway
It is connect with driving motor 11;Driving motor 11 is equipped with electric machine main shaft 29, and electric machine main shaft 29 is connect with shaft coupling 12, and connector connects
Keyway is connect, driving motor 11 drives the movement of electric machine main shaft 29, and electric machine main shaft 29 drives shaft coupling 12 to move simultaneously with screw rod 10.
Cylinder seal groove 30, placing tube O-ring 31 in slot is arranged in sealing cover 13, and 10 axis 28 of screw rod is mounted in sealing cover 13
On heart hole, sealing slot 27 is arranged in installation position, places axis O-ring 26 in slot;Spiral blade 24, spiral shell is arranged in 10 periphery of screw rod
It revolves shape blade 24 and presses 10 ° -60 ° angles and 5mm -100mm spacing spiral distribution, 24 outside diameter of spiral blade is less than feeding
9 0.2-0.3mm of internal diameter of cylinder.
The operating principle and the using method of the invention are as follows:
In the case where not needing to throw powder, the three-way valve 2 that air inlet pipe 1 connects first is opened to straight pipe 3, the first gas circuit is connected
It is logical;Compressed air is entered by air inlet pipe 1, is come out from discharge port 5.In the case where discharge port 5 is in hot environment or high pressure ring
Under border, compressed air can shield to whole device at this time.
In the case where needing to throw powder, the three-way valve 2 that air inlet pipe 1 is connected first is opened to conveying tracheae 18, makes second
Gas circuit connection, the second gas circuit air-flow are shunted by gas transmission threeway 17, are formed the gas circuit being connected to feed bin 14 and are connected to mixer 8
Gas circuit.The gas circuit being connected to feed bin 14 is that 14 balance tracheae 16 of feed bin passes through feed bin inlet suction port 33 into feed bin 14, more
Hole pipe 32 makes to keep static positive pressure P1 in cabin under acting on, and powder can be made to keep loose shape under the effect of the pressure powder
State increases the mobility of powder;The gas circuit being connected to mixer 8 is that powder mixture pipe 15 is connected to mixer 8, makes mixer
Air-flow is maintained in 8 to pass through.The power supply for connecting motor, controlling certain speed makes motor remain a constant speed rotation, and motor shaft passes through
Shaft coupling 12 drives screw rod 10 to rotate in feeder 9, and the powder in feed bin 14 is reached in feeder 9 by relief hole 25, will
Screw rod 10 " floods ", and powder is moved as the rotation of screw rod 10 is pushed by spiral blade 24 to mixer 8, subsequent powder with
The increasing of hole, powder constantly enter in feeder 9 from relief hole 25 with gravity.Powder enters in mixer 8, passes through
The air-flow of equal drift net 20 is mixed in hybrid network 21 after meeting with the powder at the uniform velocity entered in mixer 8, mixed powder
End is mixed with air-flow by equal powder net 22, and the primary mixture after mixing is output and then enter mixer outlet pipe 7 from connector,
It is discharged along discharge port threeway 6 from discharge port 5, completes the conveying to powder.
Air pressure is P2 in material delivery pipe road, since Multilayer Network makes transfer pipeline have larger crushing in mixer 8, so that P1
Greater than P2.It can guarantee that powder can be released smoothly in this way, and powder flowbility increases.Drive powder at the uniform velocity screw rod 10
Dual-Phrase Distribution of Gas olid is formed after sufficiently mixing with air-flow in lower entrance mixer 8, not by the constraint of pipe shape, not by conveying terminal
Location circumstances situation carries out high progress powder conveying.
The preferred embodiments of the invention are described in detail above, it is apparent that the present invention is not limited in above-mentioned embodiment party
Case.Within the scope of the technical concept of the present invention, a variety of equivalent variations, these equivalent changes can be carried out to technical solution of the present invention
Type all belongs to the scope of protection of the present invention.In addition, it is necessary to which explanation, each described in above-mentioned specific embodiment
Technical characteristic separately can be independently combined, as long as it is within the scope of the technical concept of the present invention.
Claims (10)
1. a kind of fine powder conveying device, including feed bin, transmission device, mixer and High-Pressure Gas System, feed bin connection transmission
Device, conveying device convey powder to mixer, and High-Pressure Gas System is connected to feed bin, conveying device and mixer, is used for
Mixed-powder, the discharging of enhancing flow of powder and protection conveying device, it is characterised in that: powder gas mixing knot is equipped in the mixer
Structure.
2. fine powder conveying device according to claim 1, it is characterised in that: the powder gas mixed structure is multilayer knot
Structure is mixed including the equal drift net for evenly dispersed air-flow, the hybrid network for the mixing of powder gas and the equal powder net for the mixing of powder gas
Net is closed between equal drift net and equal powder net.
3. fine powder conveying device according to claim 2, it is characterised in that: the equal drift net, hybrid network and equal powder net
On be equipped with pulse.
4. fine powder conveying device according to claim 1, it is characterised in that: the High-Pressure Gas System includes air inlet pipe
And the three-way valve connecting with air inlet pipe, the both ends of three-way valve are respectively communicated with and control the first gas circuit and the second gas circuit, the
One gas circuit connects mixer discharge port by straight pipe, and the second gas circuit is separately connected feed bin and mixer by gas transmission threeway.
5. fine powder conveying device according to claim 4, it is characterised in that: the three-way valve passes through with gas transmission threeway
Tracheae connection is conveyed, gas transmission threeway is connected to by balance tracheae with feed bin.
6. fine powder conveying device according to claim 1, it is characterised in that: be equipped with gas access at the top of the mixer
Connector, inlet attack connect gas transmission threeway by powder mixture pipe, and side is equipped with the feed inlet being connected to transmission device, lower end
Equipped with outlet connection, outlet connection connects mixer outlet pipe.
7. fine powder conveying device according to claim 6, it is characterised in that: the mixer device outlet lower end is equipped with
Discharge port threeway, one end of discharge port threeway connect straight pipe, and non-return valve is arranged on straight pipe, and other end connection discharge port is used for
Discharging.
8. fine powder conveying device according to claim 1, it is characterised in that: the feed bin top is equipped with inlet suction port,
Inlet suction port upper end and balance tracheae, lower end connect antipriming pipe, and bin bottom is equipped with relief hole, and relief hole connects transmission device.
9. fine powder conveying device according to claim 1, it is characterised in that: the transmission device include driving motor and
Feeder, feeder are connect by shaft coupling with driving motor;Feeder is cylindrical, and tail portion uses seal cap sealing, front end
It is connected to mixer, screw rod is set inside feeder, screw rod tail is screw shaft, and screw shaft is connected by keyway and driving motor
It connects;Driving motor is equipped with electric machine main shaft, and electric machine main shaft is connect with shaft coupling, and connector connects keyway.
10. fine powder conveying device according to claim 9, it is characterised in that: cylinder seal groove, slot is arranged in the sealing cover
Interior placing tube O-ring, screw shaft are mounted on the centre bore of sealing cover, and sealing slot is arranged in installation position, and it is O-shaped to place axis in slot
Circle;Spiral blade is arranged in the screw rod periphery, and spiral blade presses 10 ° -60 ° angles and 5mm -100mm spacing helical form
Distribution, spiral blade outside diameter are less than 0.2-0.3mm of feeder internal diameter.
Priority Applications (1)
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CN201910329351.XA CN109879059A (en) | 2019-04-23 | 2019-04-23 | A kind of fine powder conveying device |
Applications Claiming Priority (1)
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CN201910329351.XA CN109879059A (en) | 2019-04-23 | 2019-04-23 | A kind of fine powder conveying device |
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CN109879059A true CN109879059A (en) | 2019-06-14 |
Family
ID=66938143
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CN201910329351.XA Pending CN109879059A (en) | 2019-04-23 | 2019-04-23 | A kind of fine powder conveying device |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112410714A (en) * | 2020-10-06 | 2021-02-26 | 湖北超卓航空科技股份有限公司 | Supersonic flame spraying powder feeder |
CN113044578A (en) * | 2019-12-27 | 2021-06-29 | 沈阳新松机器人自动化股份有限公司 | Sealed powder feeding mechanism |
CN114042393A (en) * | 2021-11-17 | 2022-02-15 | 北京航空航天大学 | Particle generator |
CN114210255A (en) * | 2021-12-21 | 2022-03-22 | 重庆军通汽车有限责任公司 | Powder quantitative mixing device |
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JP2005104595A (en) * | 2003-08-07 | 2005-04-21 | Center For Coal Utilization Japan | Method for feeding solid powder composition by steam and method for manufacturing hydrogen using it |
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CN103879781A (en) * | 2014-04-14 | 2014-06-25 | 重庆大学 | Rotary blowing type powder feeder |
CN204689966U (en) * | 2015-03-31 | 2015-10-07 | 陕西延长石油(集团)有限责任公司 | A kind of pressure-feed device of biomass |
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2019
- 2019-04-23 CN CN201910329351.XA patent/CN109879059A/en active Pending
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FR1178548A (en) * | 1957-06-19 | 1959-05-12 | Storage silo comprising a device for conveying pulverulent, pasty or other materials | |
SU1597335A1 (en) * | 1987-09-30 | 1990-10-07 | Государственный Всесоюзный Научно-Исследовательский Институт Цементной Промышленности | Feeder of loose materials |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113044578A (en) * | 2019-12-27 | 2021-06-29 | 沈阳新松机器人自动化股份有限公司 | Sealed powder feeding mechanism |
CN112410714A (en) * | 2020-10-06 | 2021-02-26 | 湖北超卓航空科技股份有限公司 | Supersonic flame spraying powder feeder |
CN114042393A (en) * | 2021-11-17 | 2022-02-15 | 北京航空航天大学 | Particle generator |
CN114042393B (en) * | 2021-11-17 | 2022-07-01 | 北京航空航天大学 | Particle generator |
CN114210255A (en) * | 2021-12-21 | 2022-03-22 | 重庆军通汽车有限责任公司 | Powder quantitative mixing device |
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