CN1248498A - Sieving wheel for centrifugal wind sieving machine - Google Patents
Sieving wheel for centrifugal wind sieving machine Download PDFInfo
- Publication number
- CN1248498A CN1248498A CN99118473A CN99118473A CN1248498A CN 1248498 A CN1248498 A CN 1248498A CN 99118473 A CN99118473 A CN 99118473A CN 99118473 A CN99118473 A CN 99118473A CN 1248498 A CN1248498 A CN 1248498A
- Authority
- CN
- China
- Prior art keywords
- wheel
- sieving
- blade
- sieving wheel
- accessory
- Prior art date
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
- B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Centrifugal Separators (AREA)
- Separating Particles In Gases By Inertia (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Cyclones (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Toys (AREA)
Abstract
The blades (3) are tapered, with their outer edges defining a cylinder and their inner edges defining a cone. The broad edges of the blades are fastened to a solid disc (2) mounted on a hub (1) attached to a drive shaft. The narrow edges of the blades are attached to a ring (4) whose width is equal to the width of the narrow ends of the blades.
Description
The present invention relates to a kind of sieving wheel of centrifugal wind sieving machine, it has some to be parallel to the blade that rotation extends by the annular that is arranged in that contrary its centrifugal direction of screening air outside in flows through, blade is contained between the disk and circumferential butt of band sieving wheel wheel hub, and the runner between the blade is by separate each other spacing and constitute towards the surface that the rotation direction is extended of blade.
Screening plant is used for disperse is separated into fine fraction and coarse fraction at the screening thing of fluid in principle.According to the requirement of technological process aspect, this fluid may be the vaporish or liquid sieving media of gas.The desired grain size category of final products must satisfy the size distribution aspect predetermined condition of relevant various grades all the time.
Fineness for the product of some purposes has proposed high requirement.Wherein require fine fraction and the coarsely graded size distribution should be not overlapping in a undesirable wide scope, that is to say to reach as far as possible accurately partition size grade.
Because relate to a large amount of screening things mostly, improved production cost greatly so separate required energy, people seek expected result always and can consume alap energy and thereby obtain under the situation cheaply.
In order to produce very thin screening thing under the lower situation of energy consumption rate, having the centrifugal wind sieving machine that separates wheel (Abweiserad) is one of preferential screening machine.Accurately be separated into particulate product and coarse grain product in order to sieve thing, require to flow through equably with identical average radial velocity at all runner inner fluids that separate wheel.
Yet, even when the most reasonably designing fluid intake, can not avoid since the flow condition of turbulent flow and especially when separating wheel long axial distance arranged fluid can only be to flow through interlobate passage unevenly.Its consequence is, compares with possible values when evenly flowing, and separates to such an extent that inaccuracy and flow are less.
K.Leschonski studies the flow field that has in the screening plant that separates wheel with K.Legenhausen.Being published in that paper among the Chemical Engineering and Processing (31 (1992) 131-136) introduced with the sieving wheel blade is the flow condition of the runner inside on boundary.
Result of study has been distinguished three kinds of different liquid forms.They are attributable to three kinds of different duties.The main feature of these duties is at the speed (V that separates the moving fluid of wheel excircle place's longshore current
) with rotation separate wheel peripheral speed (V
s) ratio, to this visible Fig. 5.
Only when extending, sieving wheel could form uniform substantially flowing in mobile being parallel to.Desired this flowing uniformly only at the speed (V that separates the moving fluid of wheel excircle place's longshore current
) with rotation separate wheel peripheral speed (V
s) could obtain when equating.
Produce eddy current when speed is unequal, this eddy current worsens separation accuracy and finally fineness is brought negative influence.That is to say that the boundary line (Trenngrenze) of separating in the radical length fine granularity in the inner longshore current of sieving wheel road and coarseness is not constant.The separation boundary line that particulate is high that is the thinnest is positioned on the excircle that separates wheel, and along with reducing towards the radius that separates wheel rotation direction and degenerating.Usually coarse grain is separated and enter in the coarse grain product at the excircle place of wheel.Have only the particulate product could be further wheel is inner to be advanced and along with the mobile of fluid enters in the particulate product to separating.But if make thick particle be continued inwardly to carry owing to form undesirable eddy current in separating the wheel runner, they can only just be separated after being positioned at the separation boundary line of separating wheel inner radial place so.Because this separates the boundary line than thick in the separation boundary line of separating wheel excircle place, so coarse grained some part is failed to separate also thereby entered in the particulate product.Think that in these cases separation accuracy is poor.
Therefore strive separating to take turns to have uniformly becoming a mandarin, worsen the eddy current that separates the boundary line in order to avoid form.DE4326604A1 discloses and has been used to obtain a kind of first kind of scheme that evenly flows.Flow into separating being flowing in of fluid that wheel includes disperse screening thing there separates beyond the wheel runner homogenising and accelerates to the peripheral speed of separating wheel gradually.By means of separating the member that wheel is fixedly connected and the energy accelerating fluid flows therewith, they extend radially outward from separating the wheel circumference area for this reason.
Press in the prior art of DE 19513745A1 at another kind, take measures to reduce eddy current, that is, select the diameter that separates the wheel rotor disk so big, extend to the lateral boundaries that the solid or liquid input channel also constitutes this passage thus always with the outward flange that causes rotor disk.Therefore avoid along separating the violent deceleration that the wheel axial fluid flows.Also make every effort to make flow rate of fluid equal substantially here with the peripheral speed of separating wheel.
But can not be implemented in this speeds match of separating the wheel circumference area in some cases.By DE 19513745A1 with separate in the wheel by K.Leschonski and K.Legenhausen are disclosed, separate becoming a mandarin of wheel and realize by the tangential input unit of carrying object.When changing the rotating speed that separates wheel, for example improve the separation boundary line for obtaining thinner extract, then must improve the tangential flow velocity of carrying object simultaneously, this has only the flow by increasing carrying object just can reach.Yet do the casting yield that must cause reducing the particulate product like this.
Therefore introduced in DE 4326604A1 and a kind ofly established the separation wheel of annular disk at excircle, annular disk makes by means of its drive effect and separates wheel and can have uniformly and become a mandarin, but regulation does not tangentially become a mandarin.Therefore can cause at the speed (V that separates the moving fluid of wheel excircle place's longshore current
) the separation wheel circumferential speed (V that equals to rotate
s) situation, this situation cause in runner flow uniformly and cause above the good result that illustrated.
But in this scheme, also require existing technology and structural condition to allow on the excircle that separates wheel, to install this member, for example annular disk fully.And be not can obtain tangential becoming a mandarin at separation wheel place all the time.
Separating under the complete omnidirectional situation about becoming a mandarin of wheel, this situation for example appears in some winnowing machine or has in the wind power sieving apparatus of special cabinet shape, can not use by the separation wheel of prior art evenly mobile to obtain in runner.
Therefore the objective of the invention is to design a kind of separation wheel, separating the speed (V of wheel excircle place along the fluid that flows even make
) with rotation separate wheel peripheral speed (V
s) when unequal, that is exist unorientedly when mobile separating wheel excircle place, also can flow uniformly inner realization of runner.
This purpose reaches by a sieving wheel, and it has the accessory of loading onto in runner inside, and they prevent to form undesirable eddy current in runner.This purpose especially reaches by the feature of each claim.
In centrifugal sieving wheel, being arranged to the blade of annular, to impel streaming flow be constant at the angular speed that is the runner inside on boundary in any radial distance from the sieving wheel rotation with the blade.The solid vortex of Xing Chenging has a specific character in this case, and promptly it makes in the separation boundary line at sieving wheel excircle place and is minimum.Fluid is dark more together with the inside that the diffusing particle that includes enters wheel, that is radius is more little, and it is just big more then to separate the boundary line.
This just provides desirable separation condition at sieving wheel excircle place.Coarse grain been separated in outside the sieving wheel, and thereby do not cause the burden of sieving wheel, can obtain the casting yield of high particulate product thus.If but coarse grain often may enter sieving wheel inside for a certain reason, then this particle is suitable for a thicker separation boundary line, therefore in fact do not separate out, and may enter the sieving wheel center and discharge with the particulate product at the excircle place greater than the particle that separates the boundary line.This causes unsharp separation the between coarse grain and the particulate product, and sieving wheel is subjected to the load of coarse grain in addition, and these coarse grain just should separate immediately at the excircle place originally.The load that sieving wheel is high causes reducing particulate product casting yield and the efficient of screening machine is degenerated.
A reason that causes coarse grain may undesirably enter in the sieving wheel is an eddy current, and eddy current forms and aspirates coarse grain and is transported to sieving wheel inside in runner.
The eddy current that the present invention has taken measures to influence like this in runner inside forms, and making does not have or have only very a spot of coarse grain to be inhaled in the runner.
Regulation in a kind of design of the present invention, breaker (Stroemungsbrecher) install to flow on the blade circle wall at the radially middle part of runner, make the fluid that enters in the runner be flowing in runner radially first three/once in broken, eddy current can only be in this generation in 1/3rd of runner.Because eddy current is the reason that sucks coarse grain, so coarse grain just no longer so in depth sucks in the runner when eddy current forms in sieving wheel excircle district as far as possible.If coarse grain can so in depth not enter in the sieving wheel, then the load that is caused by coarse grain is also much smaller, coarse grain enter inner and thereby the possibility that may enter in the particulate product reduce greatly.
At its peripheral speed (V
s) greater than separating the speed (V of wheel excircle place along the fluid that flows
) sieving wheel in the fragmentation of flowing, at the sieving wheel blade along carrying out on the direction of rotation interface forwardly.
In contrast, at its peripheral speed (V
s) less than separating the speed (V of wheel excircle place along the fluid that flows
) sieving wheel in the fragmentation of flowing, at the sieving wheel blade along carrying out on the direction of rotation interface in the wings.
Its cross section preferably has the accessory of loading onto square, rectangle or triangular shaped and that axially extend along sieving wheel blade total length to be used as the breaker that flows.But also can adopt other various shape of cross sections according to operating position.
For the shape of the accessory of loading onto with the position is marginal is, the fluid of inflow desired separation place and desired eddy current from the sieving wheel blade interface form the place.According to operating position, that is the character of the space structure of sieving wheel and screening machine and the product that will sieve, can prove advantageously has a different optimal vortex place and has different strength of vortexes.When the position of eddy current is on the radius, and the residing radius of eddy current that this radius forms when not having to use the accessory of loading onto then can obtain improved achievement certainly.
By contrast, reduce strength of vortex and mean the essential screening that improves probably.Even find that the certain eddy current of formation can cause improving the disperse of sieving thing and streaming flow in runner excircle district.The extraction that this helps the particulate product that is to say that more particulate product can separate and enter particulate product level by sieving wheel from the screening thing.
The sieving wheel that has the accessory of packing into by the present invention is preferably used in the screening machine of the omnidirectional work of fluid with becoming a mandarin.Use can be cancelled the preaceleration of screening fluid orientation by sieving wheel of the present invention.
Can use the accessory of packing in these sieving wheels, promptly their sieving wheel blade is arranged to extend with respect to radially straight, oblique or knuckle ground by selection.
For the runner inside at sieving wheel keeps alap radial velocity, the axial arrangement height of sieving wheel should be selected greatly as far as possible.But, must note making the radial velocity of streaming flow to distribute equably basically for the big sieving wheel of axial arrangement height.The even distribution of radial velocity reaches by the different blade radial degree of depth is arranged along the sieving wheel axial height.Discharging in the design of particulate product by annular cover plate, the degree of depth of blade reduces to annular cover plate from the disk that has the sieving wheel wheel hub vertically.
Along the sieving wheel axial height have different depth of blade impel equably the inhalation flow fluid and thereby vertically the height fluid uniform radial velocity is arranged.Can increase the height of sieving wheel by means of this novel sieving wheel, meanwhile can not worsen the quality of screening.There is the design of the sieving wheel of different depth of blade also can in the sieving wheel of the accessory that nothing is packed into, be used to make the radial velocity homogenising.
Describe the present invention in detail by means of accompanying drawing below.
Fig. 1 represents to have by sieving wheel of the present invention the accessory of packing into of prismatic blade and square cross section.
Fig. 2 represents to have the blade of oblique knuckle and the accessory of packing into of square cross section by sieving wheel of the present invention.
Fig. 3 represents to have oblique blade and step-like mobile edge by sieving wheel of the present invention.
Fig. 4 represents to have oblique blade and at straight and the oblique mobile edge in distinguishing of turning round between the blade sections by sieving wheel of the present invention.
Fig. 5 is three kinds of mentioned different liquid forms of prior art.
Sieving wheel among Fig. 1 is made of the disk (2) of band sieving wheel wheel hub (1), has some radially and circularize the seam of extension, the sieving wheel blade (3) of can packing in the seam on the disk (2).Fixing along the equally distributed blade of sieving wheel circumference (3) by disk (2) and annular cover plate (4).In one embodiment, not only disk (2) and annular cover plate (4) but also blade (3) are made of steel.Blade (3) firmly is connected with cover plate (4) with disk (2) by soldering or melting welding.
If select with the another kind of material of can not melting welding or can not soldering for example pottery or plastics make the sieving wheel blade, then blade is preferably by in the seam that is bonded and fixed at disk (2) and cover plate (4).But also can adopt other various interconnection techniques.Can prove that according to material and operating position another kind of connected mode is the most rational.Even especially sieving wheel blade (3) also can bond with disk (2) and cover plate (4) when adopting steel.
At each sieving wheel blade (3) along the accessory (5) of fixedly packing on the interface, the place ahead of direction of rotation.This accessory of packing into (5) has for example foursquare cross section and axially extends along whole blade heights.They can for example be connected by melting welding, soldering or the bonding interface with sieving wheel blade (3).
The accessory of packing into is preferably on the round track of a common radius, and this circle track for example is positioned at a radially zone of the outside 1/3rd of overall width of sieving wheel blade (3).
The difference of the sieving wheel of representing among sieving wheel shown in Figure 2 and Fig. 1 is the layout of sieving wheel blade (3).These sieving wheel blades (3) are not radially to extend exactly, but with respect to radially arranging to angle of reverse rotational direction commentaries on classics.If sieving wheel blade (3) extends near the rotation always, then sieving wheel blade (3) keeps radially location in inner area, and sieving wheel blade (3) is externally distinguished then opposite, and they are arranged with respect to radially changeing an angle ground there.Therefore sieving wheel blade (3) has constituted the runner of the trend that a kind of band turns round.
Can also use such sieving wheel blade (3), they in depth do not extend to the inside of sieving wheel, and only extend along sieving wheel outer radial district.Fig. 3 has represented this design.
The accessory of packing into can have multi-form cross section according to operating position.For example the accessory of packing on the sieving wheel blade (3) by Fig. 3 does not have square cross section, and just constitute by the boss (6) of step basically, boss in a kind of optimal design (6) is in aggregates with sieving wheel blade (3) combination, need not to be connected with sieving wheel blade (3) in addition.
In order to make each blade (3) that big gradient can be arranged and to maintain enough runners, the end (7) of blade (3) inside they are positioned at is designed to tilt.Therefore, even if adopt blade (3) many and that thickness is very big, also can maintain enough big runner.
In the another kind of design of the present invention, the sieving wheel blade is made up of two segmentations.Wherein radially inside segmentation radial alignment ground extends.Radially segmentation outside is arranged to oblique by Fig. 4.The position of turning round between oblique and straight blade sections, stretch out from the position of turning round the outer end of interior segment section, and thereby constitute by mobile edge of the present invention.
Claims (12)
1. the sieving wheel of centrifugal wind sieving machine, it has some to be parallel to the blade that rotation extends by the annular that is arranged in that contrary its centrifugal direction of screening air outside in flows through, blade is contained between the disk and circumferential butt of band sieving wheel wheel hub, runner between the blade be is characterized by: be provided with the accessory of packing into that influences flow process in runner inside by separate each other spacing and constitute towards the surface that the rotation direction is extended of blade.
2. according to the described sieving wheel of claim 1, it is characterized by: the accessory of packing into is installed in the sieving wheel blade and is positioned on that interface in the place ahead along direction of rotation.
3. according to the described sieving wheel of claim 1, it is characterized by: the accessory of packing into is installed in the sieving wheel blade and is positioned on that interface at rear along direction of rotation.
4. according to the described sieving wheel of claim 1 to 3, it is characterized by: the accessory of packing into extends along whole axial heights of sieving wheel.
5. according to the described sieving wheel of claim 1 to 4, it is characterized by: the accessory of packing into has square cross section.
6. according to the described sieving wheel of claim 1 to 4, its hold levy for: the accessory of packing into has the cross section of rectangle.
7. according to the described sieving wheel of claim 1 to 4, it is characterized by: the accessory of packing into has triangular cross section.
8. according to the described sieving wheel of claim 1 to 7, it is characterized by: the accessory of packing into is designed to the boss of sieving wheel blade step.
9. according to the described sieving wheel of claim 1 to 8, it is characterized by: it is the different blade radial degree of depth that the sieving wheel blade has along the sieving wheel axial height.
10. according to the described sieving wheel of claim 9, it is characterized by: depth of blade reduces to annular cover plate from the disk of band sieving wheel wheel hub vertically.
11. according to the described sieving wheel of claim 10, it is characterized by: depth of blade diminishes to annular cover plate continuously from the disk of band sieving wheel wheel hub vertically.
12. according to the described sieving wheel of claim 11, it is characterized by: depth of blade diminishes with a constant gradient to annular cover plate continuously from the disk of band sieving wheel wheel hub vertically.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19840344A DE19840344C2 (en) | 1998-09-04 | 1998-09-04 | Classifying wheel for a centrifugal air classifier |
| DE19840344.5 | 1998-09-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1248498A true CN1248498A (en) | 2000-03-29 |
| CN1103253C CN1103253C (en) | 2003-03-19 |
Family
ID=7879798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99118473A Expired - Fee Related CN1103253C (en) | 1998-09-04 | 1999-09-02 | Sieving wheel for centrifugal wind sieving machine |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0983802B1 (en) |
| JP (1) | JP4763111B2 (en) |
| CN (1) | CN1103253C (en) |
| AT (1) | ATE301007T1 (en) |
| DE (2) | DE19840344C2 (en) |
| ES (1) | ES2245064T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108202023A (en) * | 2016-12-16 | 2018-06-26 | 霍索卡瓦阿尔彼股份公司 | For the sieving wheel of centrifugal force wind screening device |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002126650A (en) * | 2000-10-30 | 2002-05-08 | Toshiba Tungaloy Co Ltd | Sorting rotor |
| CN100591405C (en) * | 2008-05-04 | 2010-02-24 | 胡端志 | Novel dynamic physical shielding purifier, production method and special fixture |
| DE102015220269A1 (en) * | 2015-10-19 | 2017-04-20 | Thyssenkrupp Ag | Visual device for viewing a material flow |
| DE102018008127B4 (en) | 2018-10-13 | 2022-06-09 | Hosokawa Alpine Aktiengesellschaft | Die head and process for producing a multi-layer tubular film |
| DE102018009632B4 (en) | 2018-12-11 | 2021-12-09 | Hosokawa Alpine Aktiengesellschaft | Apparatus for winding and changing laps of web material and a method therefor |
| EP3782739A1 (en) | 2019-08-22 | 2021-02-24 | Basf Se | A component for use as rotary body |
| US11826786B2 (en) | 2019-11-22 | 2023-11-28 | Gebr. Pfeiffer Se | Classifier wheel with vane surface elements |
| DE102020006008B3 (en) | 2020-10-01 | 2022-03-31 | Hosokawa Alpine Aktiengesellschaft | Fluidized bed opposed jet mill for the production of finest particles from feed material of low bulk density and method therefor |
| DE102021001239B4 (en) | 2021-03-09 | 2024-03-21 | Hosokawa Alpine Aktiengesellschaft | Device and method for screening dusty goods |
| DE102021001240B4 (en) | 2021-03-09 | 2023-05-11 | Hosokawa Alpine Aktiengesellschaft | Device and method for classifying dusty goods |
| DE102021001237B4 (en) | 2021-03-09 | 2023-02-09 | Hosokawa Alpine Aktiengesellschaft | Device and method for classifying dusty goods |
| DE102021001238B4 (en) | 2021-03-09 | 2023-01-26 | Hosokawa Alpine Aktiengesellschaft | Centrifugal air classifier and method for classifying dusty goods |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3089595A (en) * | 1960-08-06 | 1963-05-14 | Alpine Ag Maschinenfabrik Und | Flow apparatus for separating granular particles |
| JPH0226682A (en) * | 1988-07-18 | 1990-01-29 | Babcock Hitachi Kk | Grinding and classifying apparatus |
| DD299949A5 (en) * | 1989-12-15 | 1992-05-14 | Freiberg Bergakademie | FINE-SCREEN AND METHOD FOR THE PRODUCTION THEREOF |
| DE4140656C1 (en) * | 1991-12-10 | 1992-09-10 | Alpine Ag, 8900 Augsburg, De | |
| DE4326604C2 (en) * | 1993-08-07 | 2003-02-27 | Hosokawa Alpine Ag & Co | classifier |
| JPH07308637A (en) * | 1994-05-20 | 1995-11-28 | Ishikawajima Harima Heavy Ind Co Ltd | Rotary classifier of mill |
| JP3207702B2 (en) * | 1995-04-04 | 2001-09-10 | 三菱重工業株式会社 | Rotary classifier for roller mill |
| DE19513745A1 (en) * | 1995-04-11 | 1996-10-17 | Hosokawa Mikropul Ges Fuer Mah | Classifier |
-
1998
- 1998-09-04 DE DE19840344A patent/DE19840344C2/en not_active Expired - Fee Related
-
1999
- 1999-08-21 DE DE59912352T patent/DE59912352D1/en not_active Expired - Lifetime
- 1999-08-21 ES ES99116466T patent/ES2245064T3/en not_active Expired - Lifetime
- 1999-08-21 EP EP99116466A patent/EP0983802B1/en not_active Expired - Lifetime
- 1999-08-21 AT AT99116466T patent/ATE301007T1/en active
- 1999-09-01 JP JP24760299A patent/JP4763111B2/en not_active Expired - Lifetime
- 1999-09-02 CN CN99118473A patent/CN1103253C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108202023A (en) * | 2016-12-16 | 2018-06-26 | 霍索卡瓦阿尔彼股份公司 | For the sieving wheel of centrifugal force wind screening device |
| CN108202023B (en) * | 2016-12-16 | 2021-05-28 | 霍索卡瓦阿尔彼股份公司 | Screening wheel for centrifugal force wind power screening device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0983802B1 (en) | 2005-08-03 |
| JP4763111B2 (en) | 2011-08-31 |
| DE19840344C2 (en) | 2002-04-04 |
| ES2245064T3 (en) | 2005-12-16 |
| DE59912352D1 (en) | 2005-09-08 |
| ATE301007T1 (en) | 2005-08-15 |
| CN1103253C (en) | 2003-03-19 |
| DE19840344A1 (en) | 2000-05-04 |
| EP0983802A3 (en) | 2000-07-19 |
| JP2000084490A (en) | 2000-03-28 |
| EP0983802A2 (en) | 2000-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1103253C (en) | Sieving wheel for centrifugal wind sieving machine | |
| CN86103352A (en) | Be used for the separator of sorting particulate material | |
| CN1204972C (en) | Separator of mill | |
| US5120431A (en) | Pneumatic centrifugal separator | |
| US5354255A (en) | Decanter centrifuge with conveyor capable of high speed and higher flow rates | |
| CN107661818B (en) | A kind of method and grain classifier improving powder granule effectiveness of classification | |
| JPH0699101A (en) | Centrifugal separator | |
| CN1660502A (en) | Method and appts.to sort particles flowing from verticle grinder | |
| CA2150669A1 (en) | Rotor for mechanical air classifiers | |
| CN1109387A (en) | Wind screening machine | |
| US2753996A (en) | Flow separators | |
| CN1056787C (en) | Method and device for separation of a fine grained solid matter into two particle fractions | |
| US2787374A (en) | Centrifugal classifier | |
| CN107309071A (en) | Harmonic wave hypergravity preparation equipment | |
| CN1118339C (en) | Vertical-axis air classifier | |
| US2988220A (en) | Turbo-classifier | |
| US2943735A (en) | Particle classifiers | |
| HU195746B (en) | Method and apparatus for separating the aggregation of grains of smaller than 300 micron size into fine and coarse phase | |
| RU2728628C1 (en) | Centrifugal classifier with special impeller | |
| EP0519535A1 (en) | Dynamic separator for pulverulent materials, in particular cement, and a plant incorporating it | |
| US2741366A (en) | Centripetal classifier | |
| US20020033357A1 (en) | Separating wheel | |
| WO2005123261A1 (en) | An arrangement in a centrifugal separator | |
| GB2193448A (en) | Air classifier for granular materials | |
| US3036709A (en) | Centrifugal air classifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Augsburg Patentee after: Hosokawa Alpine AG Address before: Augsburg, Federal Republic of Germany Patentee before: Hosokawa Alpine AG |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030319 Termination date: 20150902 |
|
| EXPY | Termination of patent right or utility model |