CN207971424U - A kind of sensing heating and radio frequency plasma combined atomizing pulverized coal preparation system - Google Patents
A kind of sensing heating and radio frequency plasma combined atomizing pulverized coal preparation system Download PDFInfo
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- CN207971424U CN207971424U CN201820081977.4U CN201820081977U CN207971424U CN 207971424 U CN207971424 U CN 207971424U CN 201820081977 U CN201820081977 U CN 201820081977U CN 207971424 U CN207971424 U CN 207971424U
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Abstract
The utility model is related to a kind of sensing heatings and radio frequency plasma combined atomizing pulverized coal preparation system, including high-frequency induction heating apparatus, radio frequency induction plasma apparatus, vacuum extractor, atomization collection device, separation dust-extraction unit and silk material conveying device.The utility model is designed reasonably, it is easy to operate, the technology being combined with radio frequency plasma melting and aerosolization using high-frequency induction heating, entire heating, fusing, aerosolization process is vacuumized by system to be re-filled with indifferent gas and is protected, it is pollution-free, nothing is mingled with, silk material is preheated by high-frequency induction heating apparatus to be combined with radio frequency plasma device fusing silk material, improve heat absorption rate in preheating and fusion process, improve liquid stream or the degree of superheat of drop, so that high sphericity can be obtained after aerosolization, Oxygen potential, smaller particle size, high quality spherical powder without hollow ball, high pressure atomizing nozzle is used in atomization process, increase the output capacity of the metal powder of unit interval.
Description
Technical field
The utility model is related to powder metallurgical technologies, and in particular to a kind of sensing heating combines mist with radio frequency plasma
Change pulverized coal preparation system.
Background technology
With flourishing for the technologies such as increasing material manufacturing (3D printing), injection moulding, thermal spraying, the spherical infusibility of high quality
Metal powder and active metal powder are all important source material necessary to these fields, spherical infusibility and active metal powder production
It counts for much in entire product manufacturing process, the refractory metal and titanium and titanium for higher melts such as tungsten, molybdenum, tantalum, niobiums close
Golden etc. both active and dystectic metal or alloy, it is difficult to obtain the spherical shape of high quality with conventional melting and aerosolization method
Powder.
Currently, the technology of be produced on a large scale high quality spherical shape infusibility and active metal powder mainly has plasma electric rotating
Pole method (PREP), induction melting inert gas atomizer technology (PIGA, EIGA), plasma torch atomization (PA), radio frequency etc. from
Bulbec method (RF) etc..
Plasma rotating electrode process (PREP) melts high-speed rotating metal bar material front end with high-temperature plasma line, relies on
The high-speed rotating centrifugal force dispersion of bar throws away molten melt drop, and molten melt drop relies on surface tension polycondensation glomeration again, and cold
Cure during solidifying, due to the plasma gun power limited applied at present, and the raw material used is mostly the gold of 50~80mm of diameter
Belong to bar, so existing plasma rotating electrode powder-making technique can carry out the rotation of titanium alloy, nickel-base alloy and cobalt-base alloys
Powder by atomization, but rotary-atomizing powder can not be carried out to more dystectic tungsten, molybdenum, tantalum, niobium Base Metal and alloy.In addition, wait from
The rotating speed of metal bar material can not provide higher metal drop generally within 20000r/min in sub- rotation electrode powder-making technique
The centrifugal force of aerosol dispersion, therefore, the spherical powder granularity which prepares are generally relatively thick, big absolutely such as titanium or titanium alloy powder
For most granularities between 100~250 μm, the powder yield of 50 μm or less grain sizes is extremely low.
For inert gas atomizer technology (PIGA), since extreme is presented in some rare metals during high melt
Activity, so fusion process is mostly in a vacuum or inert atmosphere, and using the induction melting mode of cold-crucible, or using gold
Belong to bar and the direct induction melting (EIGA) of silk material；At present using induction melting mode powder mostly as titanium or titanium alloy,
The relatively not high metal of the fusing points such as nickel-base alloy can not just carry out more dystectic tungsten, molybdenum, tantalum, niobium Base Metal and alloy
It melts and powder processed.In addition it will appear electrode not during using induction melting aerosolization technology smelting metal bar or silk material
It is completely melt and falls into diversion pipe, cause to block, thus it is a technological difficulties of EIGA to keep the continuous-stable of liquid stream.Separately
Outside, the drop after induction melting is detached from high-temperature region and is atomized immediately, thus the degree of superheat of the molten drop after general fusing compared with
It is low, there is no enough temperature and times to ensure that drop shrinks balling-up under surface tension effects during temperature reconstruction,
Therefore the sphericity of powder is bad, also will produce hollow ball.
Plasma torch atomization (PA) is using Canadian AP＆C companies as representative.The technology is using silk material as raw material, with direct current
The high temperature plasma jet of plasmatorch is heat source, under an argon atmosphere, using the high temperature of plasmatorch, high speed characteristics, with more
Small drop is melted and be atomized into silk material by plasmatorch, is then cooled to spherical powder.This method can produce sphericity height
And the high quality spherical powder that grain size is small, but the technology is due to by the limitations such as plasmatorch and silk material heat transfer efficiency, leading to powder
Last yield is relatively low.
Radio frequency plasma (RF) is using Canadian TEKNA companies as representative.The technology is using radio frequency plasma torch to raw material
It is heated, there is the incomparable plasma temperature height of other methods, electrodeless pollution；It is original with metal powder
Material, after plasma high temperature melting, drop shrinks balling-up under surface tension effects and then solidifies, and can obtain sphericity
Good spherical powder.The disadvantage is that powder purity, granularity are limited by raw material itself, and powder output is relatively low.
Utility model content
The purpose of this utility model is to provide a kind of sensing heating and radio frequency plasma combined atomizing pulverized coal preparation system, to
Solve that existing dystectic refractory metal and titanium or titanium alloy etc. are both active and dystectic metal or alloy is difficult to obtain height
The problem of quality spherical powder.
To achieve the above object, the technical solution of the utility model is：
A kind of sensing heating and radio frequency plasma combined atomizing pulverized coal preparation system, including high-frequency induction heating apparatus, radio frequency sense
Answer plasma apparatus, vacuum extractor, atomization collection device, separation dust-extraction unit and silk material conveying device, the high-frequency induction
The insulator seal tubulature of heating device is integrated molding structure with the plasma lamp torch of the radio frequency induction plasma apparatus, is used
Seal Design；
Further, the atomization collection device includes atomizer, atomization reative cell and atomization reative cell rewinding tank；
Further, the vacuum extractor includes level-one high vacuum oil diffuse pump series connection level-one mechanical pump；
Further, the separation dust-extraction unit includes that cyclone separator, deduster, separator rewinding tank and deduster are received
Collect tank；
Further, the silk material conveying device includes wire dispenser, straightener and wire feeder, the silk material conveying device
Power is 1~3KW, and frequency control, wire feed rate is 1~20m/min；
Further, the high-frequency induction heating apparatus includes high-frequency induction heating power, radio-frequency induction coil, insulator seal
The power of tubulature and encapsulating structure, the high-frequency induction heating power is 15~100KW, and frequency of oscillation is 50~500KHz, institute
The radio-frequency induction coil stated is 4~10 circles, and a diameter of 6~20mm is usedHollow copper tubing makes, the high frequency
The insulator seal tubulature is inserted among induction coil, the insulator seal tubulature is made using silica glass material, the envelope
The high-frequency induction heating apparatus and silk material conveying device are connected and sealed assembling structure；
Further, the radio frequency induction plasma apparatus include radio frequency induction heating power supply, radio frequency induction coil, etc. from
Sub- lamp torch and plasma lamp torch fixture, the power of the radio frequency induction heating power supply are 50~200KW, frequency of oscillation is 3~
300MHz, the radio frequency induction coil are 4~6 circles, and a diameter of 60~90mm is usedHollow copper tubing makes,
The plasma lamp torch uses three layers of water-cooling structure, passes through the plasma lamp torch fixture and the high-frequency induction heating apparatus phase
Even；
Further, whole system is evacuated to 10 by the vacuum extractor-1~10-3Pa, system leak rate ＜
0.005PaL/s, is re-filled with helium or argon gas establishes protective atmosphere, and system pressure is controlled in -50KPa~+50KPa；
Further, the plasma lamp torch establishes stable plasmatorch, the helium or argon using helium or argon gas
The primary air amount of gas is 10~100L/min, and side throughput is 20~300L/min, and the purity of the helium or argon gas is not less than
99.995%；
Further, the atomizer is high pressure atomizing nozzle, the atomization gas of the atomizer be argon gas or
Helium, selected atomizing pressure are 5~10MPa, and atomization gas flow is 2~20m3/min。
The utility model has the following advantages that：
1, a kind of sensing heating of the utility model and radio frequency plasma combined atomizing pulverized coal preparation system include high-frequency induction heating
Device, radio frequency induction plasma apparatus, vacuum extractor, atomization collection device, separation dust-extraction unit and silk material conveying device are
System reasonable design, easy to operate, the technology being combined with radio frequency plasma melting and aerosolization using high-frequency induction heating, entirely
Heating, fusing, aerosolization process vacuumize by system and are re-filled with indifferent gas and are protected, no gaseous contamination, it is electrodeless pollute,
Nothing is mingled with.
2, the utility model melts silk material by high-frequency induction heating apparatus preheated metallic silk material and radio frequency plasma device
It is combined, improves heat absorption rate in preheating and fusion process, by adjusting the power of radio frequency induction heating device and shaking
Dynamic frequency, improves liquid stream or the degree of superheat of drop so that high sphericity, Oxygen potential can be obtained after aerosolization, compared with granule
Degree, the high quality spherical powder without hollow ball use high pressure atomizing nozzle and inert atomizing gas, atomization process in atomization process
Impurity is not will produce, the output capacity of the metal powder of unit interval is increased.
Description of the drawings
Fig. 1 is the system diagram of a kind of sensing heating of the utility model and radio frequency plasma combined atomizing pulverized coal preparation system.
Wherein, 1. high-frequency induction heating apparatus, 2. radio frequency induction plasma apparatus, 3. vacuum extractors, 4. atomizations are collected
Device, 5. separation dust-extraction units, 6. silk material conveying devices, 7. atomizers, 8. atomization reative cells, 9. atomization reative cell rewindings
Tank, 10. high vacuum oil diffuse pumps, 11. mechanical pumps, 12. cyclone separators, 13. dedusters, 14. separator rewinding tanks, 15, put
Line device, 16, straightener, 17, wire feeder, 18. high-frequency induction heating powers, 19. radio-frequency induction coils, 20. insulator seal tubulatures,
21. encapsulating structure, 22. radio frequency induction heating power supplies, 23. radio frequency induction coils, 24. plasma lamp torches, 25. plasma lamp torch cards
Tool, 26. deduster collecting tanks.
Specific implementation mode
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figure 1, a kind of sensing heating and radio frequency plasma combined atomizing pulverized coal preparation system, including high-frequency induction heating fill
Set 1, radio frequency induction plasma apparatus 2, vacuum extractor 3, atomization collection device 4, separation dust-extraction unit 5 and silk material conveying device
6, the high-frequency induction heating apparatus 1 includes high-frequency induction heating power 18, radio-frequency induction coil 19, insulator seal tubulature 20 and envelope
The power of assembling structure 21, the high-frequency induction heating power 18 is 30KW, and frequency of oscillation is 100~300KHz, the high frequency sense
It is 6 circles to answer coil 19, and a diameter of 10mm is usedHollow copper tubing makes, and institute is inserted among the radio-frequency induction coil 19
State insulator seal tubulature 20, the insulator seal tubulature 20 is made using silica glass material, and the encapsulating structure 21 is by high frequency
Heating induction device 1 is connected and sealed with silk material conveying device 6, and the radio frequency induction plasma apparatus 2 includes radio frequency induction
Heating power supply 22, radio frequency induction coil 23, plasma lamp torch 24 and plasma lamp torch fixture 25, the radio frequency induction heating power supply
22 power is 100KW, and frequency of oscillation 3MHz, the radio frequency induction coil 23 is 4 circles, and a diameter of 80mm is usedHollow copper tubing makes, and the plasma lamp torch 24 uses three layers of water-cooling structure, passes through the plasma lamp torch fixture
25 are connected with the high-frequency induction heating apparatus 1, and the plasma lamp torch 24 establishes stable plasmatorch using helium, described
The primary air amount of helium is 10~50L/min, and side throughput is 20~100L/min, and the purity of the helium is not less than
99.995%, the plasma of the insulator seal tubulature 20 of the high-frequency induction heating apparatus 1 and the radio frequency induction plasma apparatus 2
Lamp torch 24 is integrated molding structure, and using Seal Design, the vacuum extractor 3 is gone here and there including level-one high vacuum oil diffuse pump 10
Join level-one mechanical pump 11, the pressure of whole system is vacuumized 10-1~10-3Pa, system leak rate ＜ 0.005PaL/s, then
It is filled with helium and establishes protective atmosphere, in -20KPa~+20KPa, the atomization collection device 4 includes that atomization is sprayed for system pressure control
Mouth 7, atomization reative cell 8 and atomization reative cell rewinding tank 9, the atomizer 7 are high pressure atomizing nozzle, the atomizer 7
Atomization gas is helium, and selected atomizing pressure is 5~8MPa, and atomization gas flow is 2~10m3/ min, the separation remove
Dirt device 5 includes cyclone separator 12, deduster 13, separator rewinding tank 14 and deduster collecting tank 26, the silk material conveying
Device 6 includes wire dispenser 15, straightener 16 and wire feeder 17, and the power of the silk material conveying device 6 is 1~3KW, becomes frequency modulation
Speed, wire feed rate are 2~6m/min.
A kind of milling method of sensing heating and radio frequency plasma combined atomizing pulverized coal preparation system, first by vacuum extractor 3
It is re-filled with indifferent gas after whole system is vacuumized, the silk material prepared is transported to by high-frequency induction by silk material conveying device 6
Heating device 1 is preheated, and the silk material after preheating carries out melting by radio frequency plasma device 2, and the drop after melting is being atomized
It is atomized into fine droplets in collection device 4 and is cooled to spherical powder, is separated and collected through detaching dust-extraction unit 5, and by screening
Obtain required metal powder.
Embodiment 2
As shown in Figure 1, a kind of sensing heating and radio frequency plasma combined atomizing pulverized coal preparation system, including high-frequency induction heating fill
Set 1, radio frequency induction plasma apparatus 2, vacuum extractor 3, atomization collection device 4, separation dust-extraction unit 5 and silk material conveying device
6, the high-frequency induction heating apparatus 1 includes high-frequency induction heating power 18, radio-frequency induction coil 19, insulator seal tubulature 20 and envelope
The power of assembling structure 21, the high-frequency induction heating power 18 is 60KW, and frequency of oscillation is 200~400KHz, the high frequency
Induction coil 19 is 8 circles, and a diameter of 12mm is usedHollow copper tubing makes, and is inserted among the radio-frequency induction coil 19
The insulator seal tubulature 20, the insulator seal tubulature 20 are made using silica glass material, and the encapsulating structure 21 will be high
Frequency heating induction device 1 is connected and sealed with silk material conveying device 6, and the radio frequency induction plasma apparatus 2 includes radio frequency sense
Answer heating power supply 22, radio frequency induction coil 23, plasma lamp torch 24 and plasma lamp torch fixture 25, the radio frequency induction heating electricity
The power in source 22 is 200KW, and frequency of oscillation 50MHz, the radio frequency induction coil 23 is 5 circles, and a diameter of 90mm is usedHollow copper tubing makes, and the plasma lamp torch 24 uses three layers of water-cooling structure, passes through the plasma lamp torch fixture
25 are connected with the high-frequency induction heating apparatus 1, and the plasma lamp torch 24 establishes stable plasmatorch using argon gas, described
The primary air amount of argon gas is 30~80L/min, and side throughput is 50~200L/min, and the purity of argon is not less than
99.995%, the plasma of the insulator seal tubulature 20 of the high-frequency induction heating apparatus 1 and the radio frequency induction plasma apparatus 2
Lamp torch 24 is integrated molding structure, and using Seal Design, the vacuum extractor 3 is gone here and there including level-one high vacuum oil diffuse pump 10
Join level-one mechanical pump 11, the pressure of whole system is evacuated to 10 by the vacuum extractor 3-1~10-3Pa, system leak rate
＜ 0.005PaL/s are re-filled with argon gas and establish protective atmosphere, and system pressure control is received in -30KPa~+30KPa, the atomization
Acquisition means 4 include atomizer 7, atomization reative cell 8 and atomization reative cell rewinding tank 9, and the atomizer 7 sprays for high-pressure atomization
The atomization gas of mouth, the atomizer 7 is argon gas, selected atomizing pressure be 5~10MPa, atomization gas flow be 5~
15m3/ min, the separation dust-extraction unit 5 include that cyclone separator 12, deduster 13, separator rewinding tank 14 and deduster are received
Collect tank 26, the silk material conveying device 6 includes wire dispenser 15, straightener 16 and wire feeder 17, the work(of the silk material conveying device 6
Rate is 1~3Kw, and frequency control, wire feed rate is 3~5m/min.
A kind of milling method of sensing heating and radio frequency plasma combined atomizing pulverized coal preparation system, first by vacuum extractor 3
It is re-filled with indifferent gas after whole system is vacuumized, the silk material prepared is transported to by high-frequency induction by silk material conveying device 6
Heating device 1 is preheated, and the silk material after preheating carries out melting by radio frequency plasma device 2, and the drop after melting is being atomized
It is atomized into fine droplets in collection device 4 and is cooled to spherical powder, is separated and collected through detaching dust-extraction unit 5, and by screening
Obtain required metal powder.
Embodiment 3
As shown in Figure 1, a kind of sensing heating and radio frequency plasma combined atomizing pulverized coal preparation system, including high-frequency induction heating fill
Set 1, radio frequency induction plasma apparatus 2, vacuum extractor 3, atomization collection device 4, separation dust-extraction unit 5 and silk material conveying device
6, the high-frequency induction heating apparatus 1 includes high-frequency induction heating power 18, radio-frequency induction coil 19, insulator seal tubulature 20 and envelope
The power of assembling structure 21, the high-frequency induction heating power 18 is 40Kw, and frequency of oscillation is 100~300KHz, the high frequency
Induction coil 19 is 8 circles, and a diameter of 10mm is usedHollow copper tubing makes, and is inserted among the radio-frequency induction coil 19
The insulator seal tubulature 20, the insulator seal tubulature 20 are made using silica glass material, and the encapsulating structure 21 will be high
Frequency heating induction device 1 is connected and sealed with silk material conveying device 6, and the radio frequency induction plasma apparatus 2 includes radio frequency sense
Answer heating power supply 22, radio frequency induction coil 23, plasma lamp torch 24 and plasma lamp torch fixture 25, the radio frequency induction heating electricity
The power in source 22 is 120Kw, and frequency of oscillation 20MHz, the radio frequency induction coil 23 is 5 circles, and a diameter of 75mm is usedHollow copper tubing makes, and the plasma lamp torch 24 uses three layers of water-cooling structure, passes through the plasma lamp torch fixture
25 are connected with the high-frequency induction heating apparatus 1, and the plasma lamp torch 24 establishes stable plasmatorch using helium, described
The primary air amount of helium is 10~60L/min, and side throughput is 20~100L/min, and the purity of the helium is not less than
99.995%, the plasma of the insulator seal tubulature 20 of the high-frequency induction heating apparatus 1 and the radio frequency induction plasma apparatus 2
Lamp torch 24 is integrated molding structure, and using Seal Design, the vacuum extractor 3 is gone here and there including level-one high vacuum oil diffuse pump 10
Join level-one mechanical pump 11, the pressure of whole system is evacuated to 10 by the vacuum extractor 3-1~10-3Pa, system leak rate
＜ 0.005PaL/s, and be filled with helium and establish protective atmosphere, system pressure control is received in -50KPa~+50KPa, the atomization
Acquisition means 4 include atomizer 7, atomization reative cell 8 and atomization reative cell rewinding tank 9, and the atomizer 7 sprays for high-pressure atomization
The atomization gas of mouth, the atomizer 7 is helium, selected atomizing pressure be 8~10MPa, atomization gas flow be 10~
20m3/ min, the separation dust-extraction unit 5 include that cyclone separator 12, deduster 13, separator rewinding tank 14 and deduster are received
Collect tank 26, the silk material conveying device 6 includes wire dispenser 15, straightener 16 and wire feeder 17, the work(of the silk material conveying device 6
Rate is 1~3Kw, and frequency control, wire feed rate is 5~8m/min.
A kind of milling method of sensing heating and radio frequency plasma combined atomizing pulverized coal preparation system, first by vacuum extractor 3
It is re-filled with indifferent gas after whole system is vacuumized, the silk material prepared is transported to by high-frequency induction by silk material conveying device 6
Heating device 1 is preheated, and the silk material after preheating carries out melting by radio frequency plasma device 2, and the drop after melting is being atomized
It is atomized into fine droplets in collection device 4 and is cooled to spherical powder, is separated and collected through detaching dust-extraction unit 5, and by screening
Obtain required metal powder.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (10)
1. a kind of sensing heating and radio frequency plasma combined atomizing pulverized coal preparation system, it is characterised in that：The sensing heating and radio frequency
Plasma combined atomizing pulverized coal preparation system includes high-frequency induction heating apparatus (1), radio frequency induction plasma apparatus (2), vacuum means
Set (3), atomization collection device (4), separation dust-extraction unit (5) and silk material conveying device (6), the high-frequency induction heating apparatus
(1) insulator seal tubulature (20) and the plasma lamp torch (24) of the radio frequency induction plasma apparatus (2) are integrated chemical conversion type knot
Structure, using Seal Design.
2. sensing heating according to claim 1 and radio frequency plasma combined atomizing pulverized coal preparation system, it is characterised in that：It is described
Atomization collection device (4) includes atomizer (7), atomization reative cell (8) and atomization reative cell rewinding tank (9).
3. sensing heating according to claim 1 and radio frequency plasma combined atomizing pulverized coal preparation system, it is characterised in that：It is described
Vacuum extractor (3) includes level-one high vacuum oil diffuse pump (10) series connection level-one mechanical pump (11).
4. sensing heating according to claim 1 and radio frequency plasma combined atomizing pulverized coal preparation system, it is characterised in that：It is described
It includes cyclone separator (12), deduster (13), separator rewinding tank (14) and deduster collecting tank to detach dust-extraction unit (5)
(26)。
5. sensing heating according to claim 1 and radio frequency plasma combined atomizing pulverized coal preparation system, it is characterised in that：It is described
Silk material conveying device (6) includes wire dispenser (15), straightener (16) and wire feeder (17), the work(of the silk material conveying device (6)
Rate is 1~3kW, and frequency control, wire feed rate is 1~20m/min.
6. sensing heating according to claim 1 and radio frequency plasma combined atomizing pulverized coal preparation system, it is characterised in that：It is described
High-frequency induction heating apparatus (1) include high-frequency induction heating power (18), radio-frequency induction coil (19), insulator seal tubulature (20) and
The power of encapsulating structure (21), the high-frequency induction heating power (18) is 15~100 kW, and frequency of oscillation is 50~500kHz,
The radio-frequency induction coil (19) is 4~10 circles, and a diameter of 6~20mm is usedHollow copper tubing makes, institute
It states and is inserted into the insulator seal tubulature (20) among radio-frequency induction coil (19), the insulator seal tubulature (20) uses quartz glass material
Material is made, and the encapsulating structure (21) carries out the high-frequency induction heating apparatus (1) with silk material conveying device (6) close
Envelope connection.
7. sensing heating according to claim 1 and radio frequency plasma combined atomizing pulverized coal preparation system, it is characterised in that：It is described
Radio frequency induction plasma apparatus (2) includes radio frequency induction heating power supply (22), radio frequency induction coil (23), plasma lamp torch (24)
With plasma lamp torch fixture (25), the power of the radio frequency induction heating power supply (22) is 50~200kW, frequency of oscillation is 3~
300MHz, the radio frequency induction coil (23) are 4~6 circles, and a diameter of 60~90mm is usedHollow copper tubing
It makes, the plasma lamp torch (24) uses three layers of water-cooling structure, passes through the plasma lamp torch fixture (25) and the high frequency
Induction heating apparatus (1) is connected.
8. sensing heating according to claim 3 and radio frequency plasma combined atomizing pulverized coal preparation system, it is characterised in that：It is described
Whole system is evacuated to 10 by vacuum extractor (3)-1~10-3Pa, system leak rate ＜ 0.005PaL/s, is re-filled with helium
Gas or argon gas establish protective atmosphere, and system pressure is controlled in -50kPa~+50kPa.
9. sensing heating according to claim 7 and radio frequency plasma combined atomizing pulverized coal preparation system, it is characterised in that：It is described
Plasma lamp torch (24) establishes stable plasmatorch using argon gas or helium, and the primary air amount of the helium or argon gas is 10~
100L/min, side throughput are 20~300L/min, and the helium or purity of argon are not less than 99.995%.
10. sensing heating according to claim 2 and radio frequency plasma combined atomizing pulverized coal preparation system, it is characterised in that：Institute
It is high pressure atomizing nozzle to state atomizer (7), and the atomization gas of the atomizer (7) is argon gas or helium, selected mist
Change pressure is 5~10MPa, and atomization gas flow is 2~20m3/min。
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031855A (en) * | 2018-01-17 | 2018-05-15 | 北京金物科技发展有限公司 | A kind of sensing heating and radio frequency plasma combined atomizing pulverized coal preparation system |
| CN109550967A (en) * | 2018-12-20 | 2019-04-02 | 西安铂力特增材技术股份有限公司 | A kind of equipment of Novel super-thin metal powder preparation |
| CN110919017A (en) * | 2019-12-20 | 2020-03-27 | 北京工业大学 | Method and device for preparing spherical metal powder by hot wire assisted plasma arc |
| CN112935269A (en) * | 2020-12-15 | 2021-06-11 | 苏州汉霄等离子体科技有限公司 | Plasma powder making device with grading device and powder making process thereof |
-
2018
- 2018-01-17 CN CN201820081977.4U patent/CN207971424U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031855A (en) * | 2018-01-17 | 2018-05-15 | 北京金物科技发展有限公司 | A kind of sensing heating and radio frequency plasma combined atomizing pulverized coal preparation system |
| CN109550967A (en) * | 2018-12-20 | 2019-04-02 | 西安铂力特增材技术股份有限公司 | A kind of equipment of Novel super-thin metal powder preparation |
| CN110919017A (en) * | 2019-12-20 | 2020-03-27 | 北京工业大学 | Method and device for preparing spherical metal powder by hot wire assisted plasma arc |
| CN112935269A (en) * | 2020-12-15 | 2021-06-11 | 苏州汉霄等离子体科技有限公司 | Plasma powder making device with grading device and powder making process thereof |
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Effective date of registration: 20191226 Address after: Room 288, floor 2, main building, cultural innovation building, No. 60, Fenghuang East Road, Hailing District, Taizhou City, Jiangsu Province Patentee after: Jiangsu Jinwu New Material Co., Ltd Address before: 100085 comprehensive service building 95, Qinghe three street, Beijing, Haidian District 12-1238 Patentee before: Beijing Gold Technology Development Co., Ltd. |