EP0747137B1 - Zentrifugalkraftsichter - Google Patents
Zentrifugalkraftsichter Download PDFInfo
- Publication number
- EP0747137B1 EP0747137B1 EP96107735A EP96107735A EP0747137B1 EP 0747137 B1 EP0747137 B1 EP 0747137B1 EP 96107735 A EP96107735 A EP 96107735A EP 96107735 A EP96107735 A EP 96107735A EP 0747137 B1 EP0747137 B1 EP 0747137B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- separation
- centrifugal force
- shaft
- housing
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000012530 fluid Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 11
- 238000010926 purge Methods 0.000 description 5
- 230000002706 hydrostatic effect Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 210000001061 forehead Anatomy 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
-
- 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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
-
- 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
Definitions
- the invention relates to a centrifugal classifier with a housing provided with inlets for classifying material and classifying air or a classifying material / classifying air inlet and outlets for classifying air / fine material mixture and coarse material, in which at least one rotor, essentially formed by a ring of blades, is mounted.
- a centrifugal force classifier in which a fine material class air outlet space is provided on both ends of the classifying rotor, is already known from DBP 2951819. Thanks to the two fine material outlets, this classifier has a high throughput, with a high fine material output and little coarse grain missing grain in the fine material. However, it is disadvantageous that this construction results in a relatively long and therefore heavy shaft.
- the two fine material-visible air outlet spaces are each formed by a knee-shaped tube section, the diameter of which corresponds approximately to the rotor diameter.
- the rotor shaft is guided on both sides through these curved outlet pipe sections, the shaft bushing having to be sufficiently sealed from the outside atmosphere.
- a bearing for the shaft is provided on each side of the shaft bushing.
- a pulley or the like sits at the upper end of the shaft.
- the rotor shaft as well as the classifier rotor as a whole must be accordingly the large axial distance between the bearings compact and be made relatively bulky to the required strength to achieve and avoid vibrations.
- a centrifugal force classifier is already known from DBP 2825400, whose rotor blades on both ends on a front ring are attached and the two brow rings each on their Outer circumference in a hydrostatic, aerostatic or electromagnetic Bearings are stored. Such camps are pretty expensive, especially with the large diameter of the end rings.
- a centrifugal force classifier is already from DBP 3712136 known, the rotor by means of at least one with a fluid flushable bearing is mounted in the housing, the bearing also serves as a seal between the rotor shaft and the housing.
- this involves a centrifugal classifier only one-sided visual air fines extraction, whereby the the Suction side opposite end disc of the rotor immediately is located next to a housing wall in which the rotor shaft is mounted is.
- the invention is based on the object Centrifugal classifier of the type mentioned, preferably a sifter with fine material air extraction on both sides, reduce the distance between the bearings of the rotor shaft.
- the classifying rotor is mounted on a central, stationary axis which is held in the housing by means of arms, supports or similar supporting elements.
- a rigid, stationary axis is thus provided according to the invention, on which the view rotor is rotatably mounted.
- the two bearings can be moved very close to one another on this axis carrying the rotor, ie there is a small distance between the two bearings. This avoids the disadvantages based on the large distance between the previous shaft bearings, in particular the tendency to vibrate.
- the view rotor is particularly advantageously mounted on the axis by means of electromagnetic bearings.
- the electromagnetic bearing on the axis has only a small diameter, so it is significantly cheaper. Purge air can be supplied to the electromagnetic bearing, as well as to another bearing, through channels in the fixed axis.
- electromagnetic bearings are lubricant-free.
- other lubricant-free bearings can also be provided, in general the rotor can be mounted on the axis by means of at least one bearing that can be flushed with a fluid.
- the drive of the invention on a stationary central axis mounted rotor can be in different ways and Way.
- Another type of drive is characterized according to the invention in that that an electric external rotor motor is provided as the drive is whose stator is stuck on the axis, and whose Runner by means of radial arms, spokes or the like with the the rings carrying the rotor blades is connected.
- the classifier has a vertically arranged one, essentially cylindrical housing 1, in which a classifying rotor 2 is rotatable.
- the classifier housing has a tangential, over its entire height extending air inlet 3.
- a Guide vane ring 5 is provided with radial distance from the housing shell 4 .
- the lamellar ring or blade ring 6 the view rotor provided.
- cylindrical ring-shaped viewing space 7 is the one to be separated from above Grain batch entered. And that is above the visual space Ring channel 8 is provided for blowing in the grain batch, into the one Connection piece 9 opens.
- the classifying rotor is mounted on a fixed axis 13, which extends along the longitudinal center line of the classifier or classifying rotor, which is supported in relation to the classifier housing or machine frame. 1 to 3, the axis 13 is supported above and below the classifying rotor 2 by means of radial arms 14 relative to the housing.
- the radial arms 14 extend from the axis 13 or a shaft 15 which is firmly seated on the axis, inclined with respect to the radius to the walls of the fine material viewing material outlet spaces 10, 11.
- Three support arms 14 of this type offset by 120 ° can be provided, which are aerodynamically designed.
- An upper and a lower end ring 16, 17 of the classifying rotor are sealed against the outlet spaces in such a way that in particular no coarse particles can get into the classroom from outside the classifying rotor.
- the seal is provided with purge air connections 18.
- the end rings 16, 17 are connected to a sleeve 22 by means of arms 21 inclined to the radius.
- a support ring or spacer ring 20 is provided between the upper and the lower end ring and is connected to the sleeve 22 by means of radial arms 21a.
- the sleeve 22 is rotatable on the axis 13 by means of an upper and a lower bearing 23, 24, but is not longitudinally displaceable. Purge air is supplied to the bearings 23, 24 through axial and radial bores 25 in the axis, so that the bearings are protected against the ingress of particles.
- the bearings 23, 24 can be designed as electromagnetic, aerostatic or hydrostatic bearings.
- a controller 26 is used to regulate and supply voltage for electromagnetic bearings 23, 24.
- FIG. 2 is the classifying rotor 2 in a classifier according to FIG. 1 driven by a pneumatic turbine 28 on the outer circumference of the rotor is formed. And that's on the top Brow ring 16 provided a set of turbine blades 30 are surrounded by a turbine housing 31, which at least a compressed air nozzle 32 directed towards the turbine blades having.
- FIG. 3 also corresponds to that Description with reference to Fig. 1, the same parts are the same Provide reference numerals. 3, however, is an electromagnetic one Drive provided.
- Such an electromagnetic Drive can be generally within that shown in Fig. 1 Sleeve 22 housed and preferably as an external rotor motor be trained.
- the stator windings 34 are on the axis 13 arranged, which the magnetic poles or the magnetic field of Form the drive motor.
- Corresponding rotor poles 35 are on the Inner wall of a housing 36 - corresponding to the sleeve 22 in Fig. 2 - assembled. Radial extend from the housing 36 Arms 21, 21a to the end rings 16, 17 or to the spacer rings 20, analogous to Fig. 1 and 2.
- To the cylindrical Peripheral wall of this motor housing close an upper and a lower end wall 42, 43 on. Are in the area of the end walls one bearing 37, 38 and one sealing ring 44 for the classifying rotor 2 or its external rotor drive motor used.
- One of the both bearings are provided as an axial support bearing. Camps can be as electromagnetic or aerostatic or also be designed hydrostatic bearings.
- the distance between the bearings 37, 38 is smaller than that Length of the viewing rotor 2 - in contrast to the previously known Sifting with one stored outside the classifier housing Drive shaft. Because of the small distance between the bearings The diameter of the axis must be correspondingly small.
- the sifters could be the axis bearing radial arms 14 in the area of the outlets as hinders the flow.
- the sifter 4 are the axially outer regions of the Visible rotor and in particular those connected to it Outlet spaces completely free of any machine parts or internals, which the flow or free derivation of the Fine material-visual air mixture could interfere.
- an axis 13a, 13b is fastened approximately at the center of its length to a support disk 40 which extends radially through the center of the classifying rotor or classifier.
- the separator is divided into two halves by this support disk 40.
- This design of the organ supporting the axis as a radial disk 40 is readily practical if the material to be viewed is entered tangentially from the outside together with the air to be viewed.
- Such a central radial support disk is also possible if the classifier is arranged with a horizontal shaft, that is to say lying down, and the material to be viewed is inputted in a tagential manner from above. If, however, according to FIG. 4, the classifier is to continue to be standing, with a vertical axis and with an inlet of the material to be classified through an upper annular channel 8, the support disk is provided with a ring of radial support arms 41.
- the drive of the classifying rotor or of the two classifying rotor halves 2a, 2b is again designed as an electrical external rotor drive.
- the camps are completely encapsulated within the housing.
- the support disk 40 In the area the support disk 40 are the view rotors 2a, 2b by means of bearings 39 mounted on the axis 13a, 13b.
- a seal 44 is provided, the Purge air is supplied via a duct or line.
- the upper or lower half of this classifier can also be used for itself as a sifter with a fine material sight air outlet on one side be trained.
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Centrifugal Separators (AREA)
- Separating Particles In Gases By Inertia (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Paper (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Motorcycle And Bicycle Frame (AREA)
- Drying Of Solid Materials (AREA)
Description
Ein solcher Zentrifugalkraftsichter, bei dem an beiden Stirnseiten des Sichtrotors je ein Feingut-Sichtluft-Auslaßraum vorgesehen ist, ist bereits aus DBP 2951819 bekannt. Dank der beiden Feingut-Auslässe hat dieser Sichter eine hohe Durchsatzleistung, bei einem hohen Feingutausbringen und wenig Grobkorn-Fehlkorn im Feingut.
Nachteilig ist jedoch, daß sich bei dieser Bauweise eine relativ lange und damit schwere Welle ergibt. Die beiden Feingut-Sichtluft-Auslaßräume sind nämlich von je einem knieförmig gebogenen Rohrstück gebildet, dessen Durchmesser in etwa dem Rotordurchmesser entspricht. Die Rotorwelle ist beidseits durch diese gewölbten Auslaß-Rohrstücke hindurchgeführt, wobei die Wellendurchführung ausreichend gegenüber der äußeren Atmosphäre abgedichtet sein muß. Beidseits der Wellendurchführung ist jeweils ein Lager für die Welle vorgesehen. Am oberen Ende der Welle sitzt eine Riemenscheibe oder dergleichen.
Statt einer durchgehenden Antriebswelle ist somit gemäß der Erfindung eine starre, stillstehende Achse vorgesehen, auf welcher der Sichtrotor drehbar gelagert ist. Auf dieser den Rotor tragenden Achse können die beiden Lager sehr dicht aneinander herangerückt sein, d.h. es ergibt sich ein geringer Abstand zwischen den beiden Lagern.
Damit sind die auf dem großen Abstand der bisherigen Wellenlagerungen beruhenden Nachteile, insbesondere die Neigung zu Schwingungen, vermieden.
Besonders vorteilhaft ist der Sichtrotor aber mittels elektromagnetischer Lager auf der Achse gelagert. Im Gegensatz zu der elektromagnetischen Lagerung der Stirnringe eines Rotors demäß DBP 28 25 400 weist die elektromagnetische Lagerung auf der Achse einen nur geringen Durchmesser auf, sie ist also bedeutend billiger. Durch Kanäle in der feststehenden Achse hindurch kann dem elektromagnetischen Lager - wie auch einem anderen Lager - Spülluft zugeführt werden. Bekanntlich sind elektromagnetische Lager schmiermittelfrei.
Es können aber auch andere schmiermittelfreie Lager vorgesehen sein, allgemein kann der Rotor mittels wenigstens eines mit einem Fluid spülbaren Lagers auf der Achse gelagert sein.
- Fig. 1
- zeigt schematisch, im Längsschnitt, ein erstes Ausführungsbeispiel.
- Fig. 2
- zeigt - ebenfalls schematisch im Längsschnitt - das Ausführungsbeispiel nach Fig. 1, mit einem am Außenumfang des Sichtrotors vorgesehenen Druckluft-Turbinen-Antrieb.
- Fig. 3
- zeigt, ebenfalls schematisch im Längsschnitt, ein Ausführungsbeispiel mit einem elektrischen Außenläufer-Motorantrieb.
- Fig. 4
- zeigt ebenfalls ein Ausführungsbeispiel mit elektrischem Außenläufer-Antrieb, wobei eine zentrale, radiale Tragscheibe bzw. ein Tragarmkranz vorgesehen ist, von der aus sich eine tragende Achse je zur Hälfte nach oben und nach unten erstreckt, auf der jeweils ein Sichtrotor angeordnet ist.
- Fig. 5/6
- sind die Querschnitte nach den Schnittlinien V-V bzw. VI-VI in Fig. 3.
- Fig. 7
- ist der Querschnitt nach Schnittlinie VII-VII in Fig. 4.
Gemäß Fig. 1 bis 3 ist die Achse 13 oberhalb und unterhalb des Sichtrotors 2 mittels radialer Arme 14 gegenüber dem Gehäuse abgestützt. Die radialen Arme 14 erstrecken sich von der Achse 13 bzw. einer auf der Achse fest sitzenden Habe 15 gegenüber dem Radius geneigt zu den Wandungen der Feingut-Sichtgutauslaßräume 10, 11. Es können drei um jeweils 120° versetzte derartige Stützarme 14 vorgesehen sein, die strömungsgünstig gestaltet sind.
Ein oberer und ein unterer Stirnring 16, 17 des Sichtrotors sind gegenüber den Auslaßräumen derart abgedichtet, daß insbesondere keine groben Partikel aus dem Sichtraum, außerhalb des Sichtrotors, in die Auslaßräume gelangen können. Die Dichtung ist mit Spülluftanschlüssen 18 versehen.
Zwischen dem oberen und dem unteren Stirnring ist ein Tragring oder Abstandring 20 vorgesehen, der mittels radialer Arme 21a mit der Hülse 22 verbunden sind. Die Hülse 22 ist mittels eines oberen und eines unteren Lagers 23, 24 auf der Achse 13 drehbar, aber nicht längsverschieblich gelagert. Durch axiale und radiale Bohrungen 25 in der Achse wird den Lagern 23, 24 Spülluft zugeführt, so daß die Lager gegen Eintreten von Partikeln geschützt sind. Die Lager 23, 24 können als elektromagnetische, aerostatische oder hydrostatische Lager ausgebildet sein. Ein Regler 26 dient zur Regelung und Spannungszuführung für elektromagnetische Lager 23, 24.
Durch diese Tragscheibe 40 wird der Sichter in zwei Hälften unterteilt. Man erhält somit zwei Sichter, die axial nebeneinander bzw. übereinander angeordnet sind, wobei dem einen Sichterrotor 2a der obere Feingutsichtluftauslaß 10 und dem anderen Sichterrotor 2b der untere Feingutsichtluftauslaß 11 zugeordnet sind. Diese Ausbildung des die Achse tragenden Organes als radiale Scheibe 40 ist ohne weiteres praktikabel, wenn das Sichtgut zusammen mit der Sichtluft tangential von außen eingegeben wird. Ebenso ist eine solche mittlere radiale Tragscheibe möglich, wenn der Sichter mit horizontaler Welle, also liegend, angeordnet ist und das Sichtgut tagential von oben eingegeben wird.
Wenn aber gemäß Fig. 4 der Sichter weiterhin stehend, mit vertikaler Achse und mit einem Einlaß des Sichtgutes durch einen oberen Ringkanal 8 ausgebildet sein soll, so ist die Tragscheibe mit einem Kranz von radialen Tragarmen 41 vorgesehen.
- 1
- Gehäuse
- 2
- Sichtrotor
- 2a
- Sichtrotor
- 2b
- Sichtrotor
- 3
- Sichtguteinlaß
- 4
- Gehäusemantel
- 5
- Leitschaufelkranz
- 6
- Schaufelkranz
- 7
- Sichtraum
- 8
- Ringkanal
- 9
- Anschlußstutzen
- 10
- Feingut-Sichtluftauslaß
- 11
- Feingut-Sichtluftauslaß
- 12
- Grobauslaß
- 13
- Achse
- 13a
- Achse
- 13b
- Achse
- 14
- Tragarme
- 15
- Nabe
- 16
- Stirnring
- 17
- Stirnring
- 18
- Spülluftanschluß
- 19
- 20
- Trag-Abstandsring
- 21
- Arm
- 22
- Hülse
- 23
- Lager
- 24
- Lager
- 25
- Bohrung
- 26
- Regler
- 27
- 28
- Druckluftturbine
- 29
- 30
- Turbinenschaufel
- 31
- Turbinengehäuse
- 32
- Düse
- 33
- Austrittsstutzen
- 34
- Stator
- 34a
- Stator
- 34b
- Stator
- 35
- Läufer
- 35a
- Läufer
- 35b
- Läufer
- 36
- Gehäuse
- 36a
- Gehäuse
- 36b
- Gehäuse
- 37
- Lager
- 38
- Lager
- 39
- Lager
- 40
- Tragscheibe
- 41
- Tragarm
- 42
- Stirnhaube
- 43
- Stirnhaube
- 44
- Dichtung
Claims (8)
- Zentrifugalkraftsichter mit einem mit Einlässen für Sichtgut und Sichtluft bzw. einem Sichtgut-Sichtluft-Einlaß und Auslässen für Sichtluft-Feingutgemisch und Grobgut versehenen Gehäuse, in dem wenigstens ein im wesentlichen von einem Kranz von Schaufeln bzw. Lamellen gebildeter Sichtrotor gelagert ist,
dadurch gekennzeichnet,
daß der Sichtrotor (2) auf einer zentralen, stillstehenden Achse (13) gelagert ist, die mittels Armen (14), Stützen oder dergleichen Tragelementen in dem Gehäuse bzw. Maschinengestell gehalten ist. - Zentrifugalkraftsichter nach Anspruch 1,
dadurch gekennzeichnet,
daß der Sichtrotor (2) mittels einer elektromagnetischen Lagerung (23, 24) auf der Achse gelagert ist. - Zentrifugalkraftsichter nach Anspruch 1,
dadurch gekennzeichnet,
daß der Sichtrotor (2) mittels wenigstens eines mit einem Fluid spülbaren Lagers auf der Achse gelagert ist. - Zentrifugalkraftsichter nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß der Sichtrotor (2) an seinem Außenumfang wenigstens einen Ring von Turbinenschaufeln (30) aufweist, die von wenigstens einer Turbinendüse (32) in Umfangsrichtung beaufschlagt werden. - Zentrifugalkraftsichter nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß als Antrieb ein Außenläufer-Motor vorgesehen ist, dessen Stator (34) auf der Achse (13) festsitzt, und dessen Läufer (35) mittels radialer Arme (21) , Speichen oder dergleichen mit die Rotorschaufeln (6) tragenden Ringen (20) verbunden ist. - Zentrifugalkraftsichter nach Anspruch 1,
dadurch gekennzeichnet,
daß eine mittlere, radiale Tragscheibe (4o) bzw. ein radialer Tragarmkranz (41) vorgesehen ist, von welchem/welcher aus sich die Achse (13a, 13b) nach beiden Richtungen je zur Hälfte erstreckt, wobei auf jeder der beiden Achsenhälften je ein Sichterrotor (2a, 2b) bzw. eine Sichterrotorhälfte gelagert ist. - Zentrifugalkraftsichter nach einem der Ansprüche 1-6,
dadurch gekennzeichnet,
daß die die Achse (13; 13a, 13b) tragenden Arme (14) gegenüber dem Radius aufeinanderzu geneigt sind. - Zentrifugalkraftsichter nach einem der Ansprüche 1-7,
dadurch gekennzeichnet,
daß die die Stirnringe (16,17) des Sichtrotors (2; 2a, 2b) tragenden Arme (21) gegenüber dem Radius aufeinanderzu geneigt sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19520845 | 1995-06-08 | ||
DE19520845A DE19520845C2 (de) | 1995-06-08 | 1995-06-08 | Zentrifugalkraftsichter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0747137A1 EP0747137A1 (de) | 1996-12-11 |
EP0747137B1 true EP0747137B1 (de) | 1999-09-15 |
Family
ID=7763864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96107735A Expired - Lifetime EP0747137B1 (de) | 1995-06-08 | 1996-05-15 | Zentrifugalkraftsichter |
Country Status (9)
Country | Link |
---|---|
US (1) | US5788727A (de) |
EP (1) | EP0747137B1 (de) |
JP (1) | JP3010478B2 (de) |
AT (1) | ATE184515T1 (de) |
CA (1) | CA2177535C (de) |
DE (3) | DE19520845C2 (de) |
DK (1) | DK0747137T3 (de) |
ES (1) | ES2139275T3 (de) |
GR (1) | GR3031460T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3925709B1 (de) | 2018-12-13 | 2023-10-18 | NETZSCH-Feinmahltechnik GmbH | Fliehkraftsichter mit speziellem sichterrad |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19854855C2 (de) * | 1998-11-27 | 2002-01-17 | Hosokawa Alpine Ag & Co | Windsichter |
US6250471B1 (en) | 1999-02-24 | 2001-06-26 | Key Technology, Inc. | Sorting apparatuses and sorting methods |
DE19943528A1 (de) * | 1999-09-11 | 2001-03-15 | Kloeckner Humboldt Wedag | Sichter zum Sichten von körnigem Gut |
US6517612B1 (en) * | 2001-10-29 | 2003-02-11 | Gore Enterprise Holdings, Inc. | Centrifugal filtration device |
US7336753B2 (en) * | 2003-06-26 | 2008-02-26 | Marvell International Ltd. | Transmitter |
US7651559B2 (en) | 2005-11-04 | 2010-01-26 | Franklin Industrial Minerals | Mineral composition |
US7833339B2 (en) | 2006-04-18 | 2010-11-16 | Franklin Industrial Minerals | Mineral filler composition |
DE102006044833B4 (de) * | 2006-09-20 | 2010-01-21 | Babcock Borsig Service Gmbh | Zentrifugalsichter und Verfahren zum Sichten |
US8403602B2 (en) * | 2011-03-16 | 2013-03-26 | Babcock Power Services, Inc. | Coal flow splitters and distributor devices |
US9211547B2 (en) | 2013-01-24 | 2015-12-15 | Lp Amina Llc | Classifier |
CN109201483A (zh) * | 2017-06-30 | 2019-01-15 | 四川丰能粉体设备有限公司 | 一种新型气流粉碎分级机 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE620499C (de) * | 1935-10-22 | Eugen Steiner | Luftreinigungs-, -befeuchtungs- und -kuehlvorrichtung mit umlaufendem Filter aus Drahtgewebe | |
FR805984A (fr) * | 1935-08-28 | 1936-12-04 | Procédé et dispositif pour le dépoussiérage des gaz | |
US2793710A (en) * | 1955-06-28 | 1957-05-28 | Claude L Robinson | Heat exchanger |
US3998610A (en) * | 1971-11-15 | 1976-12-21 | Cominco Ltd. | Rotating concentric homogeneous turbulence centrifuge |
DE2825400C2 (de) * | 1978-06-09 | 1984-02-02 | Omya Gmbh, 5000 Koeln | Trennmaschine |
US4198218A (en) * | 1979-03-23 | 1980-04-15 | Kobe, Inc. | Gas separation apparatus |
DE2951819C2 (de) * | 1979-12-21 | 1982-09-16 | Omya GmbH, 5000 Köln | Zentrifugalkraftsichter |
NL8700698A (nl) * | 1987-03-25 | 1988-10-17 | Bb Romico B V I O | Roterende deeltjesscheider. |
DE3712136C1 (de) * | 1987-04-10 | 1988-08-04 | Omya Gmbh | Zentrifugalkraftsichter |
SU1565496A1 (ru) * | 1987-12-28 | 1990-05-23 | С. К. Федоренко | Устройство дл очистки газа |
DE3924826A1 (de) * | 1989-07-27 | 1991-01-31 | Kloeckner Humboldt Deutz Ag | Sichter, insbesondere stabkorbsichter, zum sichten von koernigem gut in wenigstens drei fraktionen |
DE29505311U1 (de) * | 1995-03-29 | 1995-06-01 | Omya GmbH, 50968 Köln | Zentrifugalkraftsichter |
-
1995
- 1995-06-08 DE DE19520845A patent/DE19520845C2/de not_active Expired - Fee Related
-
1996
- 1996-05-15 DE DE59603043T patent/DE59603043D1/de not_active Expired - Lifetime
- 1996-05-15 AT AT96107735T patent/ATE184515T1/de active
- 1996-05-15 DK DK96107735T patent/DK0747137T3/da active
- 1996-05-15 ES ES96107735T patent/ES2139275T3/es not_active Expired - Lifetime
- 1996-05-15 EP EP96107735A patent/EP0747137B1/de not_active Expired - Lifetime
- 1996-05-15 DE DE29608807U patent/DE29608807U1/de not_active Expired - Lifetime
- 1996-05-28 CA CA002177535A patent/CA2177535C/en not_active Expired - Lifetime
- 1996-05-30 US US08/655,630 patent/US5788727A/en not_active Expired - Lifetime
- 1996-06-03 JP JP8140048A patent/JP3010478B2/ja not_active Expired - Fee Related
-
1999
- 1999-10-07 GR GR990402551T patent/GR3031460T3/el unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3925709B1 (de) | 2018-12-13 | 2023-10-18 | NETZSCH-Feinmahltechnik GmbH | Fliehkraftsichter mit speziellem sichterrad |
Also Published As
Publication number | Publication date |
---|---|
GR3031460T3 (en) | 2000-01-31 |
DE19520845A1 (de) | 1996-12-12 |
DE19520845C2 (de) | 1997-06-26 |
US5788727A (en) | 1998-08-04 |
JP3010478B2 (ja) | 2000-02-21 |
ES2139275T3 (es) | 2000-02-01 |
CA2177535C (en) | 2000-12-12 |
JPH08332459A (ja) | 1996-12-17 |
EP0747137A1 (de) | 1996-12-11 |
CA2177535A1 (en) | 1996-12-09 |
DK0747137T3 (da) | 2000-03-27 |
DE59603043D1 (de) | 1999-10-21 |
ATE184515T1 (de) | 1999-10-15 |
DE29608807U1 (de) | 1996-07-18 |
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