CN107159380A - A kind of vertical powder spheroidization device, spheroidizing of powder method and application - Google Patents

A kind of vertical powder spheroidization device, spheroidizing of powder method and application Download PDF

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Publication number
CN107159380A
CN107159380A CN201710377437.0A CN201710377437A CN107159380A CN 107159380 A CN107159380 A CN 107159380A CN 201710377437 A CN201710377437 A CN 201710377437A CN 107159380 A CN107159380 A CN 107159380A
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CN
China
Prior art keywords
powder
spheroidizing
mill
spheroidization
mills
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710377437.0A
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Chinese (zh)
Inventor
贺会军
徐骏
赵新明
盛艳伟
朱学新
刘英杰
刘建
徐蕾
张金辉
卢彩涛
王志刚
安宁
金帅
李晓强
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BEIJING COMPO ADVANCED TECHNOLOGY CO LTD
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BEIJING COMPO ADVANCED TECHNOLOGY CO LTD
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Priority to CN201710377437.0A priority Critical patent/CN107159380A/en
Publication of CN107159380A publication Critical patent/CN107159380A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18Adding fluid, other than for crushing or disintegrating by fluid energy
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00Crushing or disintegrating by disc mills
    • B02C7/02Crushing or disintegrating by disc mills with coaxial discs
    • B02C7/08Crushing or disintegrating by disc mills with coaxial discs with vertical axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00Crushing or disintegrating by disc mills
    • B02C7/11Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00Crushing or disintegrating by disc mills
    • B02C7/11Details
    • B02C7/16Driving mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/02Making metallic powder or suspensions thereof using physical processes
    • B22F9/04Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/02Making metallic powder or suspensions thereof using physical processes
    • B22F9/04Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • B22F2009/045Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by other means than ball or jet milling

Abstract

Patent of the present invention is related to a kind of vertical powder spheroidization device, spheronization process and application, specifically using the mill of horizontally disposed two reverse rotations, powder is distributed in advance before entering mill, moved in the mill of two reverse rotations from mill center to peripheral direction, in this process, powder is acted on by many kinds of force such as the extruding force of mill, frictional force, shearing force, centrifugal force, impacts, and then powder is rubbed, collided, sharp parts are worn away, blunt, and powder is by spheroidization.The main shaft of the device is vertically arranged, and reduces powder and spheroidizing of powder uniformity is affected by gravity in mill, improves nodularization efficiency and powder can be made by the pressure of mill, nodularization effect is more preferable.Meanwhile, the design of whole device integral full-closed can nodularization progress cooling protection relatively strong for activity or requiring oxygen content higher powder.

Description

A kind of vertical powder spheroidization device, spheroidizing of powder method and application
Technical field
The present invention relates to a kind of vertical powder spheroidization device and spheroidizing of powder method, belong to powder and crush spheronization techniques neck Domain.
Background technology
Chinese patent ZL201611109470.7 discloses a kind of spheroidizing of powder device and method, specific reverse using two The mill of rotation, powder is moved in the mill of two reverse rotations from mill center to peripheral direction, in this process, powder End is acted on by many kinds of force such as frictional force, extruding force, shearing force, centrifugal force, impacts, and then powder is rubbed, collided, point Sharp part is worn away, blunt, and powder is by spheroidization.But the main shaft for being due to the device is horizontally disposed, and main shaft is in cantilever State, powder, by that can influence nodularization uniformity under Action of Gravity Field, reduces nodularization efficiency in mill, and major axis horizontal sets shadow The extruding force that powder is subject to is rung, spheroidizing quality is influenceed.
It can be seen that, the drawbacks described above of prior art is urgently to be resolved hurrily.
The content of the invention
The purpose of invention is to provide a kind of vertical powder spheroidization device, spheroidizing of powder method and application, the master of the device Axle is vertically arranged, and is reduced powder and is affected by gravity spheroidizing of powder uniformity in mill, improve nodularization efficiency and can make powder by To the pressure of mill, nodularization effect is more preferable.
One of to achieve the above object, the present invention takes following technical scheme:
A kind of spheroidizing of powder device, including housing, drive device, loader, spheroidization device, collector, controller, it is special Levy and be:Described spheroidization device is made up of two mills being horizontally mounted, and the disc surface has what is be distributed along involute Spacing d between square groove lattice, two mills can adjust.
Further, described drive device is made up of two motors, two vertical axes, spacing adjusting devices, two motors Two mills are driven to rotate backward respectively, spacing adjusting device is used to adjust the spacing d between two mills.
Further, the span of the spacing d is 0.1-2mm, and described two motors can pass through frequency converter on-line control Rotating speed.Spacing d span preferred 0.5-2mm, most preferably more preferably 0.5-1.5mm, 0.5-1.2mm;Spacing preferably can be with Powder flowbility after spheroidization is greatly improved, is conducive to powder subsequent applications.
Further, described loader is made up of hopper, valve, feeder, stone device.
Further, the spheroidization device also includes cooling medium storage and conveying device, pressure equaliser, the cooling Medium is stored and conveying device and pressure equaliser combination housing composition spheroidization device cooling protection system.
To achieve the above object two, the present invention takes following technical scheme:
A kind of method that use said apparatus carries out spheroidizing of powder, the spheroidizing of powder method comprises the following steps:(1) lead to Cross the grinding spacing that spacing adjusting device adjusts two mills;
(2) material is sent in two mills by loader;
(3) drive device drives two mills to rotate backward, and powder is in the mill of two reverse rotations from mill center Moved to peripheral direction, in this process, powder is by spheroidization;
(4) material after nodularization is collected by collector.
Further, the grinding spacing 0.1-2mm described in step (1);Disc surface described in step (2) is asymptotic wire type groove The blade that lattice interlock;When powder described in step (3) is activity relatively strong or higher to oxygen content requirement powder, opens to cool down and protect Protecting system, gas shield and cooling are carried out during nodularization to the powder.
Further, step (3) described cooling protection is by cooling medium storage and conveying device (4) that cooling medium is defeated It is sent in spheroidization device, is distilled by cooling medium, vaporizes and gas shield and cooling effect are risen to the process of whole nodularization, it is described Cooling medium be solid carbon dioxide, liquid nitrogen, liquid argon, liquid helium, liquid hydrogen in choose any one kind of them.
Further, 1 spheroidising is carried out to powder, or the powder that step (4) is collected enters in repeat step (1)-(4) The multiple spheroidization processing of row.
To achieve the above object three, the present invention takes following technical scheme:
A kind of above-mentioned spheroidizing of powder device or above-mentioned spheroidizing of powder method in metal, non-metal powder or metal dust and Application in the nodularization of the mixture material of water.
Spheroidization device of the present invention is divided in advance by horizontally disposed two mills reversely rotated, powder before entering mill Cloth, is moved, in this process, powder is by mill in the mill of two reverse rotations from mill center to peripheral direction The effect of many kinds of force such as extruding force, frictional force, shearing force, centrifugal force, impact, then powder rubbed, collided, sharp parts Be worn away, blunt, powder is by spheroidization.Disc surface is with the square groove lattice being distributed along involute, the design of square groove lattice Both it ensure that the spheroidization of powder turn avoid that moment of torsion is excessive stuck, the distribution of involute promotes powder from center to plate edge Motion.
Cooling protection is that cooling medium is transported in spheroidization device by cooling medium conveying device, cooling medium liter China, vaporization siphon away substantial amounts of heat and produces a large amount of protective gas plays gas shield and cooling effect to the process of whole nodularization.
A kind of vertical powder spheroidization device of offer, spheroidizing of powder method and the application of the present invention, it is specific using horizontally disposed Two reverse rotations mill, powder is distributed in advance before entering mill, from mill in the mill of two reverse rotations Center is moved to peripheral direction, in this process, powder by the extruding force of mill, frictional force, shearing force, centrifugal force, hit The effect of many kinds of force such as power is hit, then powder is rubbed, collided, sharp parts are worn away, blunt, and powder is by spheroidization.The dress The main shaft put is vertically arranged, and reduces powder and spheroidizing of powder uniformity is affected by gravity in mill, is improved nodularization efficiency and can be made Powder is by the pressure of mill, and nodularization effect is more preferable.Meanwhile, the design of whole device integral full-closed can be stronger for activity Or require that oxygen content the nodularization of higher powder carries out cooling protection.The present invention can be used for nodularization metal dust (simple metal Or alloy), the mixture of non-metal powder or metal dust and water, application is extremely extensive.
Brief description of the drawings
Fig. 1 is a kind of spheroidizing of powder apparatus structure schematic diagram.
Main Reference Numerals explanation:
1 hopper, 2 valves, 3 feeders, the storage of 4 cooling mediums and conveying device, 5 axles, 6 stone devices, 7 housings, 8 pressure are put down Weigh device, 9 mills, 10 mills, 11 axles, 12 slack adjusters, 13 collectors, 14 motors, 15 motors, 16 controllers.
Embodiment
Below by the drawings and specific embodiments, the present invention will be further described, but is not meant to present invention guarantor Protect the limitation of scope.
As shown in figure 1, being a kind of spheroidizing of powder apparatus structure schematic diagram.
A kind of spheroidizing of powder device of the present invention, including housing 7, drive device, loader, spheroidization device, collector 13, controller 16, described spheroidization device is made up of two mills being horizontally mounted 9,10, and the mill 9,10 surfaces have edge Spacing d between the square groove lattice of involute distribution, two mills 9,10 can adjust.Described drive device is by two motors 14th, 15, two vertical axes 5,11, spacing adjusting devices 12 are constituted, and two motors 14,15 drive two mills 9,10 reverse respectively Rotate, spacing adjusting device 12 is used to adjust the spacing d between two mills 9,10.Described two motors 14,15 can be by becoming Frequency device on-line control rotating speed.Described loader is made up of hopper 1, valve 2, feeder 3, stone device 6.The spheroidization device is also Including cooling medium storage and conveying device 4, pressure equaliser 8, the cooling medium storage and conveying device 4 and pressure are put down The device 8 that weighs combines housing 7 and constitutes spheroidization device cooling protection system.
The spheronization process includes spacing regulation, feeding, cooling protection, nodularization, powder collecting processes, specific implementation step It is rapid as follows:
First pass through the grinding spacing that spacing adjusting device 12 adjusts spheroidization device.Material is sent to two by loader again In mill 9,10, powder is moved in the mill 9,10 of two reverse rotations from mill center to peripheral direction, in this process In, powder is acted on by many kinds of force such as frictional force, extruding force, shearing force, centrifugal force, impacts, and then powder is rubbed, touched Hit, sharp parts are worn away, blunt, and powder is by spheroidization.Nodularization is full and uniform, good fluidity powder is entered by collector 13 Row is collected.
For relatively strong or higher to the oxygen content requirement powder of activity, it can be protected and be dropped using cooling protection medium Temperature, the method for cooling protection is that cooling medium is transported in spheroidization device by cooling medium storage and conveying device 4, is cooled down Medium distillation, vaporization siphon away substantial amounts of heat and produce a large amount of protective gas plays gas shield and cooling to the process of whole nodularization Effect.Cooling medium can be solid carbon dioxide (dry ice), liquid nitrogen, liquid argon, liquid helium, liquid hydrogen etc..
The experiment condition of mobility is tested to choose the sample powder of 50g-150 mesh, it is natural in typical Hall flowmeter It has been flowed that, carry out Dose times, the time, more short then mobility was better.
Embodiment 1
Choose powder FeNi25 to add in hopper 1, the spheronization process of the FeNi25 powder comprises the following steps:
(1) the grinding spacing of spheroidization device is adjusted by spacing adjusting device 12;Adjustment grinding spacing is 0.1mm;
(2) material is sent in two mills 9,10 by loader;Mill 9,10 surfaces are that asymptotic wire type groove lattice interlock Blade;
(3) two mills 9,10 are rotated backward, and powder is in the mill 9,10 of two reverse rotations from mill center to four Circumferential direction is moved, and in this process, powder is by many kinds of force such as frictional force, extruding force, shearing force, centrifugal force, impacts Effect, then powder is rubbed, collided, and sharp parts are worn away, blunt, and powder is by spheroidization;
(4) nodularization uniform flow material is collected by collector 13 well.By 1 nodularization, sphericity is obtained Height, the powder of good fluidity.
Powder is moved in the mill 9,10 of two reverse rotations from mill center to peripheral direction, in this process, Powder is acted on by many kinds of force such as frictional force, extruding force, shearing force, centrifugal force, impacts, and then powder is rubbed, collided, Sharp parts are worn away, blunt, and powder is by spheroidization.By 1 nodularization repeatedly, sphericity height is obtained, good fluidity Powder, has flowed the time for 20s.
Embodiment 2
Choose powder FeNiCo to add in hopper 1, the spheronization process of the FeNiCo powder comprises the following steps:
(1) the grinding spacing of spheroidization device is adjusted by spacing adjusting device 12;Adjustment grinding spacing is 0.6mm;
(2) material is sent in two mills 9,10 by loader;Will be solid using cooling medium storage and conveying device 4 State carbon dioxide (dry ice) is transported in spheroidization device, and solid carbon dioxide (dry ice) distillation siphons away substantial amounts of heat and produced big Measure carbon dioxide and gas shield and cooling effect are risen to the process of whole spheroidizing of powder.
(3) two mills 9,10 are rotated backward, and powder is in the mill 9,10 of two reverse rotations from mill center to four Circumferential direction is moved, and in this process, powder is by many kinds of force such as frictional force, extruding force, shearing force, centrifugal force, impacts Effect, then powder is rubbed, collided, and sharp parts are worn away, blunt, and powder is by spheroidization;
(4) nodularization uniform flow material is collected by collector 13 well.By 2 nodularizations repeatedly, obtain Sphericity is high, the powder of good fluidity, has flowed the time for 18s.
Embodiment 3
The mixture for choosing powder FeNi30 and water is added in hopper 1, the spheronization process of the FeNi30 powder include with Lower step:
(1) the grinding spacing of spheroidization device is adjusted by spacing adjusting device 12;Adjustment grinding spacing is 0.5mm;
(2) material is sent in two mills 9,10 by loader;Two mills 9,10 are rotated backward, powder and water Mixture two reverse rotation mill 9,10 in moved from mill center to peripheral direction, in this process, powder by To the effect of many kinds of force such as frictional force, extruding force, shearing force, centrifugal force, impact, then powder is rubbed, collided, sharp portion Point be worn away, blunt, powder is by spheroidization;
(4) nodularization uniform flow material is collected by collector 13 well.By 3 nodularizations repeatedly, obtain Sphericity is high, the powder of good fluidity, has flowed the time for 17s.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, its each several part title etc. can not Together, the equivalent or simple change that all construction, feature and principles according to described in inventional idea of the present invention are done, is included in the present invention In the protection domain of patent.Those skilled in the art can do various each to described specific embodiment The modification of sample or supplement or using similar mode substitute, without departing from the present invention structure or surmount the claims Defined scope, all should belong to protection scope of the present invention.

Claims (10)

1. a kind of spheroidizing of powder device, including housing (7), drive device, loader, spheroidization device, collector (13), controller (16), it is characterised in that:Described spheroidization device is made up of two mills being horizontally mounted (9,10), mill (the 9,10) table There is the spacing d between the square groove lattice being distributed along involute, two mills (9,10) can adjust in face.
2. spheroidizing of powder device according to claim 1, it is characterised in that described drive device by two motors (14, 15), two vertical axes (5,11), spacing adjusting devices (12) composition, two motors (14,15) drive respectively two mills (9, 10) rotate backward, spacing adjusting device (12) is used to adjust the spacing d between two mills (9,10).
3. spheroidizing of powder device according to claim 2, it is characterised in that the span of the spacing d is 0.1- 2mm, described two motors (14,15) can pass through frequency converter on-line control rotating speed.
4. the spheroidizing of powder device according to claim any one of 1-3, it is characterised in that:Described loader is by hopper (1), valve (2), feeder (3), stone device (6) composition.
5. the spheroidizing of powder device according to claim any one of 1-3, it is characterised in that:The spheroidization device also includes cold But medium is stored and conveying device (4), pressure equaliser (8), and the cooling medium storage and conveying device (4) and pressure are put down The device (8) that weighs combines housing (7) and constitutes spheroidization device cooling protection system.
6. the method that the spheroidizing of powder device described in a kind of use claim any one of 1-5 carries out spheroidizing of powder, its feature exists In:The spheroidizing of powder method comprises the following steps:
(1) the grinding spacing of two mills (9,10) is adjusted by spacing adjusting device (12);
(2) material is sent in two mills (9,10) by loader;
(3) drive device drive two mills (9,10) rotate backward, powder two reverse rotation mill (9,10) in from Mill center is moved to peripheral direction, in this process, and powder is by spheroidization;
(4) material after nodularization is collected by collector (13).
7. the method for spheroidizing of powder according to claim 6, it is characterised in that:Grinding spacing 0.1- described in step (1) 2mm;Mill (9,10) surface described in step (2) is the blade that asymptotic wire type groove lattice interlock;Powder described in step (3) is work Property it is relatively strong or when requiring higher powder to oxygen content, open cooling protection system, promoting the circulation of qi entered to the powder during nodularization Body is protected and cooled.
8. the method for spheroidizing of powder according to claim 7, it is characterised in that:Step (3) described cooling protection is to pass through Cooling medium is stored and cooling medium is transported in spheroidization device by conveying device (4), is distilled, is vaporized to whole by cooling medium The process of individual nodularization plays gas shield and cooling effect, and the cooling medium is solid carbon dioxide, liquid nitrogen, liquid argon, liquid helium, liquid Chosen any one kind of them in hydrogen.
9. the method for spheroidizing of powder according to claim 6, it is characterised in that:1 spheroidising is carried out to powder, or will The powder that step (4) is collected carries out multiple spheroidization processing in repeat step (1)-(4).
10. the powder ball described in spheroidizing of powder device or claim any one of 6-9 described in a kind of claim 1-5 Arbitrary Terms Application of the method for change in the nodularization of metal, non-metal powder or metal dust and the mixture material of water.
CN201710377437.0A 2017-05-25 2017-05-25 A kind of vertical powder spheroidization device, spheroidizing of powder method and application Pending CN107159380A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108326318A (en) * 2018-02-10 2018-07-27 王可迪 A kind of technology of preparing equipment being mingled with alloy powder
CN110560682A (en) * 2019-09-29 2019-12-13 北京科技大学 Liquid-solid fluidization shaping method of low-cost titanium powder for 3D printing
CN110681856A (en) * 2018-07-06 2020-01-14 安泰(霸州)特种粉业有限公司 Water atomization soft magnetic alloy powder spheroidizing method

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CN205379959U (en) * 2016-02-05 2016-07-13 青岛田庄恒源石墨有限公司 Production spherical graphite's vortices air flow balling machine tailored flour breakdown mill mechanism
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SU1544479A1 (en) * 1988-05-23 1990-02-23 Коммунарский горно-металлургический институт Mill
JPH1087356A (en) * 1996-09-12 1998-04-07 Central Res Inst Of Electric Power Ind Coal ash globurizing method and coal ash globurizing device utilizing the method
WO1999059932A1 (en) * 1998-05-21 1999-11-25 Hiromi Yamamoto Cement grinder
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Publication number Priority date Publication date Assignee Title
CN108326318A (en) * 2018-02-10 2018-07-27 王可迪 A kind of technology of preparing equipment being mingled with alloy powder
CN110681856A (en) * 2018-07-06 2020-01-14 安泰(霸州)特种粉业有限公司 Water atomization soft magnetic alloy powder spheroidizing method
CN110681856B (en) * 2018-07-06 2021-07-27 安泰(霸州)特种粉业有限公司 Water atomization soft magnetic alloy powder spheroidizing method
CN110560682A (en) * 2019-09-29 2019-12-13 北京科技大学 Liquid-solid fluidization shaping method of low-cost titanium powder for 3D printing

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