CN107661983A - A kind of low metal atomization powder manufacturing apparatus of satellite ball content - Google Patents
A kind of low metal atomization powder manufacturing apparatus of satellite ball content Download PDFInfo
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- CN107661983A CN107661983A CN201711177621.7A CN201711177621A CN107661983A CN 107661983 A CN107661983 A CN 107661983A CN 201711177621 A CN201711177621 A CN 201711177621A CN 107661983 A CN107661983 A CN 107661983A
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- China
- Prior art keywords
- powder
- manufacturing apparatus
- satellite ball
- tower
- atomisation tower
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0844—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid in controlled atmosphere
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/086—Cooling after atomisation
- B22F2009/0876—Cooling after atomisation by gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/088—Fluid nozzles, e.g. angle, distance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0896—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid particle transport, separation: process and apparatus
Abstract
A kind of low metal atomization powder manufacturing apparatus of satellite ball content, including metal feed mechanism, atomising device, atomisation tower and powder separating device；The metal feed mechanism is connected with atomising device, and the atomising device is arranged on the top of atomisation tower, and the bottom of the atomisation tower is provided with main meal outlet, and main meal outlet connects with powder separating device；The flour opening no less than 3 is offered in atomisation tower sidewall upper or end socket, the flour opening is located at the periphery that atomising device bottom is atomized out coke breeze remittance area, and flour opening is connected by flour extraction pipe road with powder separating device.The structure of the low metal atomization powder manufacturing apparatus of the satellite ball content is simple, easy to use, and the metal atomization powder size that it is prepared is uniformly tiny, and sphericity is high, and good fluidity, satellite ball content is low, can meet the performance requirement of in the market various metals powder；The low manufacture cost of the equipment, is easy to mass production, can meet the active demand both at home and abroad to high-performance metal powder.
Description
Technical field
The present invention relates to a kind of powder by atomization equipment, is set more particularly, to a kind of low metal atomization powder of satellite ball content
It is standby.
Background technology
Gas atomization is widely used in the preparation of metal or alloy powder, and powder by gas-atomization is rushed by high velocity air
Cutting metal or alloy liquid stream are broken up, liquid stream is broken into the milling method of fine droplet.
Former light is towards the preparation of the spherical metal powder of increasing material manufacturing, sign and applies [D] Institutes Of Technology Of Nanjing,
2015. 1 are disclosed herein aerosolization pressure and metal itself property in the type of gas-atomized powder nozzle in equipment, pulverizing process
The sphericity of confrontation metal atomization powder and the influence of satellite content of powder.It the article disclose and use supersonic speed pulse indifferent gas
Invention sphericity prepared by body atomization plant is high, and satellite ball is few, but is atomized tower structure to metal atomization powder centre halfback's celestial body content
Influence do not have relevant report.
The U of CN 203209693 disclose a kind of vertical gas atomization device of alloy powder of microstructure homogenization, and it includes holding
Device, installed in the combination nozzle of the container bottom, positioned at the fireproof sleeve combined in the middle part of nozzle, magnetic valve and controller；It is described
Combination nozzle includes superposed and the top nozzle, the lower nozzle that are fixedly connected, and the lower nozzle, which has, multiple realizes conical jet
Lower spray orifice, the top nozzle has multiple upper spray orifices for realizing endless parallel injection, and upper spray orifice is located at the periphery of lower spray orifice, on
Spray orifice, lower spray orifice are connected with a nitrogen conveying equipment；The container bottom offers one and let slip a remark, and the magnetic valve is arranged on leakage
In mouth, magnetic valve is electrically connected with controller；A through hole is offered in the middle part of the fireproof sleeve, the through hole connects with leting slip a remark.
Although the vertical gas atomization device of the alloy powder reduces the formation of powder by atomization centre halfback's celestial body, the content of satellite ball is still higher,
Production requirement can not be met.
The A of CN 106378460 disclose the plasma atomization plant for preparing pure titanium or titanium alloy powder, including plasma
Torch, atomization storehouse, to the feed system of atomization storehouse feeding, the powder collection device being connected with atomization storehouse, and powder collection device phase
The gas purification circulatory system even；The gas purification circulatory system includes gas circulation power set；It is provided with atomization storehouse
Air inlet；The gas circulation power set are connected with being atomized the air inlet pipeline in storehouse；In gas circulation power set and air inlet
The path of mouth is provided with heater and controls the magnetic valve of the air inlet pressure at air inlet.Such ion atomization plant is net by gas
Change the circulatory system, reduce the quantity of satellite ball, but the content of metal atomization powder centre halfback's celestial body is still higher, and exhaust outlet can band
A small amount of metal dust is walked, reduces the powder rate processed of metal atomization powder.
The content of the invention
The technical problem to be solved in the present invention is：A kind of overcome the deficiencies in the prior art, there is provided simple in construction, cost of manufacture
It is low, the low metal atomization powder manufacturing apparatus of easy to operate satellite ball content, by the knot for transforming atomisation tower in metal atomization powder
Structure, and then the formation of metal atomization powder centre halfback's celestial body is reduced, reduce its content.
The technical solution adopted for the present invention to solve the technical problems is：A kind of low metal atomization powder of satellite ball content
Equipment, including metal feed mechanism, atomising device, atomisation tower and powder separating device；The metal feed mechanism fills with atomization
Put connection, the atomising device is arranged on the top of atomisation tower, and the bottom of the atomisation tower is provided with main meal outlet, main meal outlet and
Powder separating device connects；The flour opening no less than 3 is offered in atomisation tower sidewall upper or end socket, the flour opening is located at
Atomising device bottom is atomized out the periphery in coke breeze remittance area, and flour opening is connected by flour extraction pipe road with powder separating device.
The present invention opens up no less than 3 flour openings in atomisation tower end socket or sidewall upper, and circumferentially formula is distributed flour opening,
The structure of 1 exhaust outlet is provided only with the top of relatively existing atomisation tower, it is easy to rapidly and uniformly reduce at the top of atomisation tower
Atomising device bottom is atomized out the powder concn in coke breeze remittance area, can effectively avoid the powder of excessive concentration from colliding at high temperature
And the phenomenon of satellite ball is formed, and then be easy to prepare the low metal atomization powder preparation of satellite ball content.
In a certain specific embodiment, circumferentially even distribution type is distributed on atomization tower side wall or end socket the flour opening, is gone out
The quantity in powder hole is 3 ~ 6.The present invention sets flour opening by being atomized out coke breeze remittance area periphery in atomising device bottom, then passes through powder
Cyclone separator in last separator drains away the amount of powder in atomisation tower, and the powder for reducing out coke breeze remittance area is dense
Degree, and then avoid powder in atomisation tower from forming the phenomenon of satellite ball because of high velocity impact.
In a certain specific embodiment, the coke breeze that goes out of the center of the flour opening and atomising device outlet at bottom converges district center
The line of point tilts upward, and is in 0 ~ 30 ° of angle with horizontal direction, it is preferable that 8 ~ 15 °.Flour opening be located at coke breeze converge area it is oblique on
Side, can effectively control the powder concn that atomisation tower is drained by flour opening, pass through the drainage caused by flour opening obliquely
Wind, the powder rapid dispersion in coke breeze remittance area is used, reduce the collision probability between powder, meanwhile, drainage wind caused by flour opening
The powder temperature after atomization can be quickly reduced, avoids powder from deforming upon at high temperature.
Further, the atomisation tower goes out powder hopper, the Gao Jing of the cylindrical tower body including end socket, cylindrical tower body and taper
Than for 3 ~ 8:1, it is preferable that ratio of height to diameter 5:1, the upper end that lower end and the taper of cylindrical tower body go out powder hopper connects, and taper goes out powder hopper
Middle lower end be provided with air inlet pipe.
In a certain embodiment, the metal atomization powder manufacturing apparatus also include be arranged on atomisation tower in pressure detector,
Powder concn detector, nitrogen oxygen content detector and controller；The powder concn detector is arranged on cylindrical tower body
Top and middle part, and be connected with controller；It is connected in the middle part of cylindrical tower body with vacuum system, and pressure detector is installed；Institute
Nitrogen oxygen content detector is stated in the cylindrical tower body of air inlet pipe upper end.
Further, the powder separating device includes air-introduced machine, cyclone separator and powder collection device；The whirlwind point
Lower end from device is provided with powder collection device, is provided between powder separating device and cyclone separator and separates dress for adjusting powder
The magnetic valve of air inducing blast is put, the magnetic valve is connected with controller.
In a certain embodiment, the metal atomization powder manufacturing apparatus also includes gas purification recycling device, described
The inlet end of gas purification recycling device connects with the blast pipe of powder separating device, and its outlet side and atomisation tower enter
Tracheae connects.
A kind of operation principle and using method of the low metal atomization powder manufacturing apparatus of satellite ball content of the present invention is：By
The end socket or sidewall upper of atomisation tower open up flour opening, and powder separating device in communication fast and effeciently can fill atomization
The powder that bottom set portion is atomized out coke breeze remittance area detaches out of atomisation tower, the atomization bottom of device of atomisation tower is atomized out coke breeze remittance area
Powder concn control in suitable scope（As atomising device bottom is atomized out the powder concn≤100g/ in coke breeze remittance area
m3）, and then reduce the probability that metal atomization powder forms satellite ball in atomisation tower because of collision；Metal dust after atomization leads to
Cross and be cooled with the contact of the inert gas entered by air inlet pipe, its small part is from flour opening by powder separating device from atomization
Top of tower is detached and separated, and major part settles after the cooling of inert gas and enters powder separating device through main meal outlet
It is interior, and then it is graded separation.
The powder of powder separating device bottom discharge enters powder collection device, and its gas discharged can also pass through gas
The processing of recycling device is purified, the air inlet pipe that inert gas therein is transported to atomisation tower again is recycled.
The ratio of height to diameter of atomisation tower cylinder tower body is 3 ~ 8:1, be advantageous to atomization after metal dust in atomisation tower with from
The inert gas that air inlet pipe enters has longer time of contact, can accelerate the quick cooling of the metal dust after atomization, and can have
Effect reduces powder and collides to form the probability of satellite ball in infall process.
Atomisation tower interior air-flow uses the endless form of bottom in and top out, improves the heat friendship between air-flow and atomized metal pow der
Rate is changed, and effectively prevent the phenomenon that atomized metal pow der deforms upon by excessive temperature differentials in powder and atomisation tower；Secondly, gas
Flow and discharged from the top of atomisation tower, and be connected with powder separating device, both efficiently reduced atomising device bottom and be atomized out coke breeze
The powder concn in remittance area, reduce powder and form the probability of satellite ball because mutually colliding, and effectively reclaimed in atomisation tower
Atomized powder.
Circumferentially formula is distributed in the end socket or top side wall of atomisation tower to flour opening, enable in atomisation tower powder more uniformly from
Atomising device bottom is atomized out coke breeze remittance area and is pulled out, it is ensured that the distribution consistency degree of powder in atomisation tower.
Pass through the pressure detector in atomisation tower, powder concn detector, nitrogen oxygen content detector and controller；Can
To monitor the pressure in atomisation tower, powder concn and nitrogen oxygen content in real time, and adjust what vacuum system vacuumized by controller
Speed, the blast of air-introduced machine and air inlet pipe inert gas are pumped into speed, e.g., by controller by the vacuum control in atomisation tower
Make in 0.05MPa, while the aperture of controller electromagnetic valve for adjusting, the blast of air-introduced machine is controlled in 10KPa, in atomisation tower
Satellite ball content of powder is less than the 5% of total content of powder.
A kind of beneficial effect of the low metal atomization powder manufacturing apparatus of satellite ball content of the present invention：Its is simple in construction, user
Just, by changing the structure of atomisation tower（The end socket and top side wall of atomisation tower open up flour opening, the cylindrical tower body of atomisation tower
Ratio of height to diameter is 3 ~ 8:1）, and then change the metal dust after atomization concentration and cooler environment residing for powder in atomisation tower
And the rate of settling, make the metal atomization powder size that is prepared uniformly tiny, sphericity is high, and good fluidity, satellite ball contains
Measure low, the performance requirement of in the market various metals powder can be met；The low manufacture cost of the equipment, is easy to mass production, can
Meet the active demand to high-performance metal powder both at home and abroad.
Brief description of the drawings
A kind of structural representation of Fig. 1-be low metal atomization powder manufacturing apparatus of satellite ball content in embodiment 1；
A kind of structural representation of Fig. 2-be low metal atomization powder manufacturing apparatus of satellite ball content in embodiment 2.In figure：1-powder
Last collection device, 2-cyclone separator, 3-air inlet pipe, 4-main meal outlet, 5-vacuum system, 6-pressure detector,
7-nitrogen oxygen content detector, 8-controller, 9-atomisation tower, 91-taper go out powder hopper, 92-cylindrical tower body, 93-end socket,
10-powder concn detector, 11-air-introduced machine, 12-magnetic valve, 13-flour extraction pipe road, 14-flour opening, 15-atomization dress
Put, 16-feed table, 17-metal feed mechanism, 18-gas purification recycling device.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1
Reference picture 1：A kind of low metal atomization powder manufacturing apparatus of satellite ball content of the present embodiment, including metal feed mechanism 17,
Atomising device 15, atomisation tower 9 and powder separating device；The metal feed mechanism 17 is connected with atomising device 15, the atomization
Device 15 is arranged on the top of atomisation tower 9, and the bottom of the atomisation tower 9 is provided with main meal outlet 4, and main meal outlet 4 separates with powder
Device connects；The flour opening 14 of 4 is offered in the sidewall upper of atomisation tower 9 or end socket 93, the flour opening 14 fills positioned at atomization
The periphery that 15 bottoms are atomized out coke breeze remittance area is put, flour opening 14 is connected by flour extraction pipe road 13 with powder separating device.
Circumferentially even distribution type is distributed on the side wall of atomisation tower 9 or end socket 93 flour opening 14.The present invention is by being atomized
The bottom of device 15, which is atomized out coke breeze, converges area periphery and sets flour opening 14, then by the cyclone separator 2 in powder separating device by mist
The amount of powder changed in tower 9 drain away, reduces out the powder concn in coke breeze remittance area, and then avoids in atomisation tower 9 powder because of height
Speed is collided and forms the phenomenon of satellite ball.
The center of the flour opening 14 and the line for going out coke breeze remittance district center point of the outlet at bottom of atomising device 15 are tilted towards
On, it is in 15 ° with horizontal direction.Flour opening 14 is located at the oblique upper in coke breeze remittance area, can effectively control and be drawn by flour opening 14
The powder concn of atomisation tower 9 is flowed out, by the drainage wind caused by flour opening 14 obliquely, the powder for using coke breeze remittance area is quick
It is scattered, the collision probability between powder is reduced, meanwhile, drainage wind can quickly reduce the powder temperature after atomization caused by flour opening 14
Degree, avoids powder from deforming upon at high temperature.
The atomisation tower 9 goes out powder hopper 91, the height of the cylindrical tower body 92 including end socket 93, cylindrical tower body 92 and taper
Footpath ratio is 5:1, such as cylindrical 92 a height of 9m of tower body；A diameter of 1.8m, lower end and the taper of cylindrical tower body 92 go out powder hopper 91
Upper end connects, and the middle lower end that taper goes out powder hopper 91 is provided with air inlet pipe 3.
The metal atomization powder manufacturing apparatus also includes pressure detector 6, the powder concn detector being arranged in atomisation tower 9
10th, nitrogen oxygen content detector 7 and controller 8；The powder concn detector 10 be arranged on cylindrical tower body 92 top and
Middle part, and be connected with controller 8；The cylindrical middle part of tower body 92 is connected with vacuum system 5, and is provided with pressure detector 6；It is described
Nitrogen oxygen content detector 7 is arranged in the cylindrical tower body 92 of the upper end of air inlet pipe 3.
The powder separating device includes air-introduced machine 11, cyclone separator 2 and powder collection device 1；The cyclonic separation
The lower end of device 2 is provided with powder collection device 1, is provided between powder separating device and cyclone separator 2 and is separated for adjusting powder
The magnetic valve 12 of device air inducing blast, the magnetic valve 12 are connected with controller 8.
Embodiment 2
Reference picture 2：A kind of low metal atomization powder manufacturing apparatus of satellite ball content of the present embodiment, compared with Example 1, exist with
Lower difference：
The quantity of the flour opening 14 is 3.
The center of the flour opening 14 and the line for going out coke breeze remittance district center point of the outlet at bottom of atomising device 15 are tilted towards
On, it is in 8 ° with horizontal direction.
The ratio of height to diameter of the cylindrical tower body 92 is 3:1.
The metal atomization powder manufacturing apparatus also includes gas purification recycling device 18, the gas purification recycling
Connected using the inlet end of device 18 with the blast pipe of powder separating device, its outlet side connects with the air inlet pipe 3 of atomisation tower 9.
When the ratio of height to diameter of the cylindrical tower body 92 of atomisation tower 9 is more than 8:When 1, the ratio of height to diameter of opposed cylindrical tower body 92 is 3 ~ 8:1
Atomisation tower 9, then the probability that the atomized metal pow der in atomisation tower 9 collides in infall process is higher by more than 50%, and it is used
When metal atomization powder is prepared, satellite ball is high, and even as high as more than 20%；When the ratio of height to diameter of the cylindrical tower body 92 of atomisation tower 9 is small
In 3:When 1, the ratio of height to diameter of opposed cylindrical tower body 92 is 3 ~ 8:1 atomisation tower 9, atomized powder is low in infall process cooling effectiveness,
And concentration is of a relatively high in atomisation tower 9, mutual collision probability is bigger than normal, easily deforms upon at high temperature.
A kind of operation principle and using method of the low metal atomization powder manufacturing apparatus of satellite ball content of the present invention is：By
The end socket 93 or sidewall upper of atomisation tower 9 open up flour opening 14, powder separating device in communication can fast and effeciently by
The powder that the bottom of atomising device 15 is atomized out coke breeze remittance area detaches out of atomisation tower 9, makes the atomization bottom mist of device 15 of atomisation tower 9
The powder concn for dissolving coke breeze remittance area is controlled in suitable scope（As the bottom of atomising device 15 is atomized out the powder in coke breeze remittance area
Concentration≤100g/m3）, and then reduce the probability that metal atomization powder forms satellite ball in atomisation tower 9 because of collision；After atomization
Metal dust by the contact of the inert gas with being entered by air inlet pipe 3 and cooled, its small part is from flour opening 14 by powder
Last separator is detached and separated from the top of atomisation tower 9, and major part settles and through main meal outlet 4 after the cooling of inert gas
Into in powder separating device, and then it is graded separation.
The powder of powder separating device bottom discharge enters powder collection device 1, and its gas discharged can also pass through gas
Body purification recycling device 18 is handled, and the air inlet pipe 3 that inert gas therein is transported to atomisation tower 9 again is circulated
Use.
The ratio of height to diameter of the cylindrical tower body 92 of atomisation tower 9 is 3 ~ 8:1, be advantageous to the metal dust after atomization in atomisation tower 9
Inert gas with entering from air inlet pipe 3 has longer time of contact, can accelerate the quick cooling of the metal dust after atomization, and
Powder can be effectively reduced to collide to form the probability of satellite ball in infall process.
The interior air-flow of atomisation tower 9 uses the endless form of bottom in and top out, improves the heat between air-flow and atomized metal pow der
Exchange rate, and effectively prevent the phenomenon that atomized metal pow der deforms upon by excessive temperature differentials in powder and atomisation tower 9；Its
Secondary, air-flow is discharged from the top of atomisation tower 9, and is connected with powder separating device, has both efficiently reduced the bottom mist of atomising device 15
The powder concn in coke breeze remittance area is dissolved, powder is reduced and forms the probability of satellite ball because mutually colliding, and effectively reclaimed mist
Change the atomized powder in tower 9.
Circumferentially formula is distributed in the end socket 93 or top side wall of atomisation tower 9 to flour opening 14, enables powder in atomisation tower 9 more equal
It is atomized out coke breeze remittance area from the bottom of atomising device 15 evenly to be pulled out, it is ensured that the distribution consistency degree of powder in atomisation tower 9.
Pass through the pressure detector 6 in atomisation tower 9, powder concn detector 10, nitrogen oxygen content detector 7 and control
Device 8；Pressure, powder concn and the nitrogen oxygen content in atomisation tower 9 can be monitored in real time, and vacuum system 5 is adjusted by controller 8
Speed, the blast of air-introduced machine 11 and the inert gas of air inlet pipe 3 vacuumized is pumped into speed, e.g., by controller 8 by atomisation tower
Vacuum degree control in 9 is in 0.05MPa, while the aperture of the electromagnetic valve for adjusting 12 of controller 8, and the blast control of air-introduced machine 11 is existed
During 10KPa, the satellite ball content of powder in atomisation tower 9 is less than the 5% of total content of powder.
The low metal atomization powder manufacturing apparatus of a kind of satellite ball content of the present invention, according to the structure and pyrosol of atomisation tower 9
Change the scale of powder manufacturing apparatus, the quantity of the flour opening 14 can also be 5,6；The center of the flour opening 14 fills with atomization
Put 15 outlet at bottoms go out coke breeze converge district center point line tilt upward, with horizontal direction can also be in 10 °, 18 °, 25 ° or
30°；The ratio of height to diameter of the cylindrical tower body 92 can also be 4:1、6:1 or 8:1, the change of above technical characteristic, this area
Technical staff is appreciated that and implemented by word description, therefore is no longer separately illustrated as accompanying drawing.
Claims (9)
1. a kind of low metal atomization powder manufacturing apparatus of satellite ball content, including metal feed mechanism, atomising device, atomisation tower and powder
Last separator；The metal feed mechanism is connected with atomising device, and the atomising device is arranged on the top of atomisation tower, described
The bottom of atomisation tower is provided with main meal outlet, and main meal outlet connects with powder separating device；Characterized in that, the atomization tower side wall
The flour opening no less than 3 is offered on upper end or end socket, the flour opening is located at atomising device bottom and is atomized out coke breeze remittance area
Periphery, flour opening is connected by flour extraction pipe road with powder separating device.
2. the low metal atomization powder manufacturing apparatus of satellite ball content as claimed in claim 1, it is characterised in that the flour opening is in circle
All even distribution types are distributed on atomization tower side wall or end socket, and the quantity of flour opening is 3 ~ 6.
3. the low metal atomization powder manufacturing apparatus of satellite ball content as claimed in claim 1 or 2, it is characterised in that the flour opening
Center and atomising device outlet at bottom go out coke breeze converge district center point line tilt upward, with horizontal direction in 0 ~ 30 ° folder
Angle.
4. the low metal atomization powder manufacturing apparatus of satellite ball content as claimed in claim 3, it is characterised in that in the flour opening
The line for going out coke breeze remittance district center point of the heart and atomising device outlet at bottom tilts upward, and is in 8 ~ 15 ° of angles with horizontal direction.
5. the low metal atomization powder manufacturing apparatus of satellite ball content as claimed in claim 1, it is characterised in that the atomisation tower includes
End socket, cylindrical tower body and taper go out powder hopper, and the ratio of height to diameter of the cylindrical tower body is 3 ~ 8:1.
6. the low metal atomization powder manufacturing apparatus of satellite ball content as claimed in claim 5, it is characterised in that the cylindrical tower body
Ratio of height to diameter be 5:1.
7. the low metal atomization powder manufacturing apparatus of satellite ball content as any one of claim 1,2,5, it is characterised in that institute
State pressure detector, powder concn detector, nitrogen the oxygen content inspection that metal atomization powder manufacturing apparatus also includes being arranged in atomisation tower
Survey instrument and controller；The powder concn detector is arranged on the top and middle part of cylindrical tower body, and is connected with controller；
It is connected in the middle part of cylindrical tower body with vacuum system, and pressure detector is installed；The nitrogen oxygen content detector is arranged on air inlet
In the cylindrical tower body of pipe upper end.
8. the low metal atomization powder manufacturing apparatus of satellite ball content as claimed in claim 7, it is characterised in that the powder separation dress
Put including air-introduced machine, cyclone separator and powder collection device；The lower end of the cyclone separator is provided with powder collection device, powder
The magnetic valve for being used for adjusting powder separating device air inducing blast, the magnetic valve are provided between last separator and cyclone separator
It is connected with controller.
9. the low metal atomization powder manufacturing apparatus of satellite ball content as any one of claim 1,2,5, it is characterised in that institute
Stating metal atomization powder manufacturing apparatus also includes gas purification recycling device, and the gas purification recycling device enters
Gas end connects with the blast pipe of powder separating device, and its outlet side connects with the air inlet pipe of atomisation tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711177621.7A CN107661983B (en) | 2017-11-23 | 2017-11-23 | Metal atomization powder manufacturing equipment with low satellite ball content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711177621.7A CN107661983B (en) | 2017-11-23 | 2017-11-23 | Metal atomization powder manufacturing equipment with low satellite ball content |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107661983A true CN107661983A (en) | 2018-02-06 |
| CN107661983B CN107661983B (en) | 2020-11-17 |
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Family Applications (1)
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| CN201711177621.7A Active CN107661983B (en) | 2017-11-23 | 2017-11-23 | Metal atomization powder manufacturing equipment with low satellite ball content |
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