EP0602557B1 - Feeder - Google Patents
Feeder Download PDFInfo
- Publication number
- EP0602557B1 EP0602557B1 EP19930119923 EP93119923A EP0602557B1 EP 0602557 B1 EP0602557 B1 EP 0602557B1 EP 19930119923 EP19930119923 EP 19930119923 EP 93119923 A EP93119923 A EP 93119923A EP 0602557 B1 EP0602557 B1 EP 0602557B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- deflector
- feeder
- separation
- plate
- 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
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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
- B07B7/086—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by the winding course of the gas stream
-
- 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
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
- B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents
Definitions
- the invention relates to a feeder according to the preamble of claim 1.
- One- and two-stage separators for separating dust and / or heavy parts from an air stream are known in principle.
- the air introduced for separation transverse to the material flow is deflected after a heavy part separation area with a heavy part collecting device in a separation area and essentially separated from the fine fraction of the material to be ground and then fed back to the heavy part separation area via a fan.
- the air flow is discharged via a central sieve pipe in the heavy-duty parting device, which, however, is covered by flat light parts such as B. paper or film parts is significantly impaired in its function.
- the device described is also characterized by a considerable space requirement.
- DE-OS 38 12 229 describes a circulating air classifier with an annular cylindrical viewing space in which the viewing air is supplied tangentially via a spiral or annular inlet channel for the purpose of generating swirl.
- the coarse material is discharged in an outlet funnel and the fine material is separated in a cyclone. Sifter and cyclone are separate units.
- a centrifugal separator is known from DE 31 14 344. It has an aspiration channel and a partially air-impermeable jacket within the suction channel.
- DE-OS 31 22 052 teaches to arrange an adjustable inflow guide vane to avoid pressure losses and to prevent inadequate separation of solids.
- the DE-OS 32 23 374 teaches a screw-shaped dip tube with a diffuser-like design in a cyclone. Both solutions are comparatively complex.
- the present invention is therefore based on the object of developing a compact feed apparatus with recirculating air operation which, in the case of conventional regrinds, enables the separation of light and heavy parts and their complete readout, and which is also of simple construction.
- the two deflection surfaces include a central and partially open suction channel to the suction fan.
- the central suction channel can also be designed as a perforated sieve tube if very high demands are placed on operational safety or if the fluid / regrind consistently contains flat light parts.
- An air distribution device is arranged between the separating space and the suction fan in order to divide the circulating air flow over the entire width, which significantly improves the reading.
- the high separation rate also reduces wear on the suction fan due to flowing fine particles.
- a spring base is arranged in an inlet of the housing of the supply apparatus, which spring base consists of a spring tongue plate, the spring tongues being firmly clamped on one side and on the side facing the inlet. This design increases functional safety by preventing heavy parts, especially pieces of wood, from being caught.
- the arrangement of the baffles according to the invention brings about a high acceleration of the fluid-solid flow in the separation space and a two-stage separation of fine parts.
- the arrangement of the air distribution device consisting of a curved plate and a flap located horizontally thereto, enables the air flow to be uniform over the entire width of the separating space to distribute and fully exploit. This in turn allows a very compact design of the feeder.
- the air flow loaded with fine particles is first deflected on the side of the first baffle plate facing away from the suction channel and subsequently on the side of the second baffle plate facing away from the suction channel, which effects a complete separation of the fine particles.
- the arrangement of the second baffle prevents the penetration of fine parts, in particular also paper or plastic films, into the suction fan or clogging of the sieve tube.
- the heavy parts contained in the air flow are separated as the least distracted components in a heavy parts collecting container before they can penetrate into the aforementioned separation space.
- An exemplary embodiment of a feed apparatus consists of a housing 1 of a circulating air separation device with an inlet 11 for the solid mixture and an outlet 12, an outlet of a heavy part collecting container 9 and a flanged suction fan 2.
- a first baffle plate 4 and a second baffle plate are in a separation space 3 of the circulating air separation device 5 arranged approximately concentrically around a perforated sieve tube 10. In their arrangement with respect to the curved wall of the separating space 3 or to the sieve tube 10, the baffles form accelerating feed channels which effect a centrifugal separation of particles.
- a magnetic separating device 8 is arranged in the direction of the outlet 12 and an air distribution device, consisting of a curved plate 6 and a flap 7 located horizontally thereto, is arranged between the separating space 3 and a suction fan 2.
- a spring base 13 which consists of a spring tongue plate, is arranged in the inlet 11 for the ground material flow.
- the individual spring tongues were worked out of a sheet metal, the base of which is firmly clamped on the side facing the inlet 11.
- the ground material flow to which recirculated air is applied is fed to a feed device of a machine (not shown) (for example a hammer mill) via inlet 11.
- a machine for example a hammer mill
- Heavy parts are already emptied in the heavy parts collecting container 9 before they reach the centrifugal separation area of the separation chamber 3.
- the fine fraction of the ground material is deflected with the air at the deflection surface 4 and remains in the centrifugal separation area as a result of the centrifugal forces and is accelerated again at the second deflection plate 5.
- the circulating air entered for separation is sucked in via a duct consisting of the perforated sieve tube 10 and returned to the suction fan 2 via a return pipe. While the largest proportion of the fine fraction carried by the air is separated from the air and reaches the outlet 12, the remaining fine fraction is deflected by the second deflecting surface 5, separated from the air and likewise reaches the outlet 12.
- the magnetic separating device 8 is arranged in the outlet 12 in order to separate magnetic parts carried along.
- the width of the air distribution is increased by means of the air distribution device 6, 7. This improves the reading and enables all products to be separated from light and heavy components.
- the sieve tube 10 can be easily removed. This is used in particular when the regrind contains no or hardly flat light parts. An impairment of the separation effect cannot be determined if the screen tube 10 is dispensed with.
- the feed apparatus according to the invention has the advantage of consisting of only a few components and thereby achieving almost complete separation. No filters are used and no foreign air remains in the regrind.
- the feeder is very low-maintenance and, thanks to the closed and compact design, environmentally friendly. Compared to comparable, conventional facilities, there is also a significant reduction in energy consumption.
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Description
Die Erfindung bezieht sich auf einen Speiseapparat gemäss dem Oberbegriff von Anspruch 1.The invention relates to a feeder according to the preamble of claim 1.
Ein- und Zweistufenabscheider zum Abscheiden von Staub und/oder Schwerteilen aus einem Luftstrom sind prinzipiell bekannt.One- and two-stage separators for separating dust and / or heavy parts from an air stream are known in principle.
Häufig wird noch, in Verbindung mit einer Schwerteiltrennung Luft in das zugeführte Produkt eingetragen und auf der Feinteilseite eines Siebes mittels Aspiration ein Unterdruck erzeugt. Dabei wird der Feinanteil mittels Filter von der Luft getrennt und das Mahlgut mittels Schleuse aus dem Unterdruckbereich ausgetragen. Zur Sicherung eines kontinuierlichen Ablaufes wird ständig Frischluft (Fremdluft) angsaugt. Zum Teil wird auch der Feinanteil noch ungefiltert mit der Abluft ausgetragen. Nachteilig sind hohe Energie- sowie Geräte- und Wartungskosten.Frequently, in connection with a heavy part separation, air is introduced into the supplied product and a vacuum is generated on the fine part side of a sieve by means of aspiration. The fine fraction is separated from the air by a filter and the regrind is removed from the vacuum area by means of a lock. Fresh air (external air) is constantly drawn in to ensure a continuous process. In some cases, the fine fraction is also discharged unfiltered with the exhaust air. High energy, equipment and maintenance costs are disadvantageous.
Bei einer an sich bekannten Umlufttrenneinrichtung wird die zur Trennung quer zum Mahlgutstrom eingetragene Luft nach einem Schwerteiltrennbereich mit einer Schwerteilsammelvorrichtung in einem Trennbereich abgelenkt und im wesentlichen vom Feinanteil des Mahlgutes getrennt und anschliessend über einen Ventilator dem Schwerteiltrennbereich wieder zugeführt. Die Ableitung des Luftstromes erfolgt über ein zentrales Siebrohr in der Schwerteiltrenneinrichtung, das jedoch durch flächige Leichtteile wie z. B. Papier oder Folienteile wesentlich in seiner Funktion beeinträchtigt wird. Die beschriebene Einrichtung ist zudem durch einen erheblichen Platzbedarf gekennzeichnet.In a known circulating air separation device, the air introduced for separation transverse to the material flow is deflected after a heavy part separation area with a heavy part collecting device in a separation area and essentially separated from the fine fraction of the material to be ground and then fed back to the heavy part separation area via a fan. The air flow is discharged via a central sieve pipe in the heavy-duty parting device, which, however, is covered by flat light parts such as B. paper or film parts is significantly impaired in its function. The device described is also characterized by a considerable space requirement.
In der DE-OS 38 12 229 ist ein Umluftsichter mit einem kreisringzylindrischen Sichtraum beschrieben, bei dem die Sichtluft zwecks Drallerzeugung über einen spiralförmigen oder kreisringförmigen Einlaufkanal tangential zugeführt wird. Das Grobgut wird in einem Auslauftrichter ausgetragen und das Feingut in einem Zyklon abgeschieden. Sichter und Zyklon sind getrennte Einheiten.DE-OS 38 12 229 describes a circulating air classifier with an annular cylindrical viewing space in which the viewing air is supplied tangentially via a spiral or annular inlet channel for the purpose of generating swirl. The coarse material is discharged in an outlet funnel and the fine material is separated in a cyclone. Sifter and cyclone are separate units.
Aus der DE 31 14 344 ist ein Fliehkraftabscheider bekannt. Er weist einen Aspirationskanal und innerhalb des Absaugkanales einen teilweise luftundurchlässigen Mantel auf.A centrifugal separator is known from DE 31 14 344. It has an aspiration channel and a partially air-impermeable jacket within the suction channel.
Die DE-OS 31 22 052 lehrt, zur Vermeidung von Druckverlusten und gegen unzureichende Separation von Feststoffen eine einstellbare Zuflussführungsschaufel anzuordnen. Die DE-OS
32 23 374 lehrt hingegen ein schraubenförmiges Tauchrohr mit difusorartiger Gestaltung in einem Zyklon. Beide Lösungen sind vergleichsweise aufwendig.DE-OS 31 22 052 teaches to arrange an adjustable inflow guide vane to avoid pressure losses and to prevent inadequate separation of solids. The DE-OS
32 23 374, on the other hand, teaches a screw-shaped dip tube with a diffuser-like design in a cyclone. Both solutions are comparatively complex.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, einen kompakten Speiseapparat mit Umluftbetrieb zu entwickeln, der bei üblichen Mahlgütern eine Trennung von Leicht- und Schwerteilen sowie deren vollständige Auslesung ermöglicht und der zudem konstruktiv einfach aufgebaut ist.The present invention is therefore based on the object of developing a compact feed apparatus with recirculating air operation which, in the case of conventional regrinds, enables the separation of light and heavy parts and their complete readout, and which is also of simple construction.
Diese Aufgabe wird erfindungsgemäss durch das Kennzeichen von Anspruch 1 gelöst. Die beiden Ablenkflächen schliessen hierbei einen zentralen und teilweise offenen Absaugkanal zum Sauggebläse ein. Der zentrale Absaugkanal kann auch als ein gelochtes Siebrohr ausgebildet sein, wenn sehr hohe Anforderungen an die Betriebssicherheit gestellt werden, bzw. das Fluid/Mahlgut beständig flächige Leichtteile enthält.According to the invention, this object is achieved by the characterizing part of claim 1. The two deflection surfaces include a central and partially open suction channel to the suction fan. The central suction channel can also be designed as a perforated sieve tube if very high demands are placed on operational safety or if the fluid / regrind consistently contains flat light parts.
Zwischen dem Abscheideraum und dem Sauggebläse ist eine Luftverteileinrichtung angeordnet, um den Umluftstrom auf die gesamte Breite zu teilen, was die Auslesung wesentlich verbessert. Die hohe Abscheiderate verringert zudem den Verschleiss des Sauggebläses durch strömende Feinteile.
In einem Einlass des Gehäuses des Speiseapparates ist in einer weiteren Ausbildung des Speiseapparates ein Federboden angeordnet, der aus einem Federzungenblech besteht, wobei die Federzungen einseitig, an der dem Einlass zugewandten Seite fest eingespannt sind. Diese Gestaltung erhöht die Funktionssicherheit, indem das Einklemmen von Schwerteilen, insbesondere Holzstücken, verhindert wird.An air distribution device is arranged between the separating space and the suction fan in order to divide the circulating air flow over the entire width, which significantly improves the reading. The high separation rate also reduces wear on the suction fan due to flowing fine particles.
In a further embodiment of the supply apparatus, a spring base is arranged in an inlet of the housing of the supply apparatus, which spring base consists of a spring tongue plate, the spring tongues being firmly clamped on one side and on the side facing the inlet. This design increases functional safety by preventing heavy parts, especially pieces of wood, from being caught.
Überraschend wurde gefunden, dass die Kombination der zum Teil an sich bekannten Elemente die erfindungsgemässen Vorteile bewirkt.It has surprisingly been found that the combination of the elements, some of which are known per se, brings about the advantages according to the invention.
Die erfindungsgemässe Anordnung der Ablenkbleche bewirkt eine hohe Beschleunigung des Fluid-Feststoffstromes im Abscheideraum und eine zweistufige Abscheidung von Feinteilen. Die Anordnung der Luftverteileinrichtung, bestehend aus einem gekrümmten Blech und einer horizontal dazu befindlichen Klappe ermöglicht es, den Luftstrom über die gesamte Breite des Abscheideraumes gleichmässig zu verteilen und vollständig auszunutzen. Dies wiederum gestattet eine sehr kompakte Gestaltung des Speiseapparates.The arrangement of the baffles according to the invention brings about a high acceleration of the fluid-solid flow in the separation space and a two-stage separation of fine parts. The arrangement of the air distribution device, consisting of a curved plate and a flap located horizontally thereto, enables the air flow to be uniform over the entire width of the separating space to distribute and fully exploit. This in turn allows a very compact design of the feeder.
Der feinteilbelastete Luftstrom wird zunächst an der dem Absaugkanal abgewandten Seite des ersten Ablenkbleches und nachfolgend an der dem Absaugkanal abgewandten Seite des zweiten Ablenkbleches abgelenkt, was eine vollständige Abscheidung der Feinteile bewirkt. Die Anordnung des zweiten Ablenkbleches verhindert dabei das Eindringen von Feinteilen, insbesondere auch Papier oder Plastfolien in das Sauggebläse bzw. ein Zusetzen des Siebrohres.The air flow loaded with fine particles is first deflected on the side of the first baffle plate facing away from the suction channel and subsequently on the side of the second baffle plate facing away from the suction channel, which effects a complete separation of the fine particles. The arrangement of the second baffle prevents the penetration of fine parts, in particular also paper or plastic films, into the suction fan or clogging of the sieve tube.
Die im Luftstrom enthaltenen Schwerteile werden als am wenigsten abgelenkte Bestandteile in einem Schwerteilsammelbehälter abgeschieden, bevor sie in den vorgenannten Abscheideraum eindringen können.The heavy parts contained in the air flow are separated as the least distracted components in a heavy parts collecting container before they can penetrate into the aforementioned separation space.
Der erfindungsgemässe Speiseapparat ist nachfolgend an Hand einer Zeichnung in einer vorteilhaften Ausführung näher beschrieben. In der Zeichnung zeigen die
- Fig. 1:
- den erfindungsgemässen Speiseapparat schematisch in einem Schnittbild (teilweise geschnitten)
- Fig. 2:
- eine Draufsicht
- Fig. 1:
- the feed apparatus according to the invention schematically in a sectional view (partially cut)
- Fig. 2:
- a top view
Ein erfindungsgemässes Ausführungsbeispiel eines Speiseapparates besteht aus einem Gehäuse 1 einer Umlufttrenneinrichtung mit einem Einlass 11 für das Feststoffgemisch und einem Auslass 12, einem Auslass eines Schwerteilsammelbehälters 9 sowie einem angeflanschten Sauggebläse 2. In einem Abscheideraum 3 der Umlufttrenneinrichtung sind ein erstes Ablenkblech 4 und ein zweites Ablenkblech 5 etwa konzentrisch um ein gelochtes Siebrohr 10 angeordnet. In ihrer Anordung zur gekrümmten Wandung des Abscheideraumes 3 bzw. zum Siebrohr 10 bilden die Ablenkbleche beschleunigende Zufuhrkanäle, die eine Zentrifugalabscheidung von Teilchen bewirken. In Verlängerung des Ablenkbleches 4 ist in Richtung des Auslasses 12 eine Magnettrenneinrichtung 8 und zwischen dem Abscheideraum 3 und einem Sauggebläse 2 eine Luftverteilungseinrichtung, bestehend aus einem gekrümmten Blech 6 und einer horizontal dazu befindlichen Klappe 7 angeordnet.An exemplary embodiment of a feed apparatus according to the invention consists of a housing 1 of a circulating air separation device with an
In dem Einlass 11 für den Mahlgutstrom ist ein Federboden 13 angeordnet, der aus einem Federzungenblech besteht. Die einzelnen Federzungen wurden aus einem Blech herausgearbeitet, dessen Basis an der, dem Einlass 11 zugewandten Seite fest eingespannt ist.A
Im Betriebszustand wird der mit Umluft beaufschlagte Mahlgut- strom einer nicht dargestellten Maschine (z. B. einer Hammermühle) über den Einlass 11 dem Speiseapparat zugeführt. Hierbei werden Schwerteile bereits im Schwerteilsammelbehälter 9 entleert, bevor sie den Zentrifugaltrennbereich des Abscheideraumes 3 erreichen.In the operating state, the ground material flow to which recirculated air is applied is fed to a feed device of a machine (not shown) (for example a hammer mill) via
Der vom Umluftstrom wesentlich stärker abgelenkte Mahlgutanteil wird gegen die Ablenkfläche 4 geführt und beschleunigt, wobei der Grobanteil des Mahlgutes an dieser Ablenkfläche 4 vorbei direkt in den Auslass 12 gelangt.The regrind portion, which is deflected much more strongly by the circulating air flow, is guided and accelerated against the deflecting surface 4, the coarse proportion of the regrind passing this deflecting surface 4 directly into the
Der Feinanteil des Mahlgutes wird mit der Luft an der Ablenkfläche 4 abgelenkt und verbleibt infolge der Zentrifugalkräfte im Zentrifugaltrennbereich und wird am zweiten Ablenkblech 5 erneut beschleunigt. Die zur Trennung eingetragene Umluft wird über einen Kanal, der aus dem gelochten Siebrohr 10 besteht angesaugt und über ein Rückführrohr zum Sauggebläse 2 zurückgeführt. Während der grösste Anteil des von der Luft mitgeführten Feinanteils von der Luft getrennt wird und in die Auslass 12 gelangt, wird der verbliebene Feinanteil von der zweiten Ablenkfläche 5 abgelenkt, von der Luft getrennt und gelangt ebenfalls in den Auslass 12.The fine fraction of the ground material is deflected with the air at the deflection surface 4 and remains in the centrifugal separation area as a result of the centrifugal forces and is accelerated again at the
Im Auslass 12 ist die Magnettrenneinrichtung 8 angeordnet, um mitgeführte magnetische Teile zu abzutrennen.The
Vermittels der Luftverteilungseinrichtung 6, 7 wird die Luftverteilung in ihrer Breite erhöht. Dies verbessert die Auslesung und ermöglicht bei allen Produkten die Trennung von leichten und schweren Bestandteilen.The width of the air distribution is increased by means of the
Das Siebrohr 10 ist problemlos entnehmbar. Dies wird insbesondere dann genutzt, wenn das Mahlgut keine oder kaum flächige Leichtteile enthält. Eine Beeinträchtigung der Abscheidewirkung ist bei Verzicht auf das Siebrohr 10 nicht feststellbar.The
Der erfindungsgemässe Speiseapparat beinhaltet den Vorteil, aus nur wenigen Komponenten zu bestehen und dabei eine nahezu vollständige Abscheidung zu erreichen. Es werden keine Filter verwendet und es verbleibt keine Fremdluft im Mahlgut. Der Speiseapparat ist sehr wartungsarm und durch den geschlossenen und kompakten Aufbau entsprechend umweltverträglich. Gegenüber vergleichbaren, koventionellen Einrichtungen ist zudem eine wesentliche Senkung des Energiebedarfs gegeben.The feed apparatus according to the invention has the advantage of consisting of only a few components and thereby achieving almost complete separation. No filters are used and no foreign air remains in the regrind. The feeder is very low-maintenance and, thanks to the closed and compact design, environmentally friendly. Compared to comparable, conventional facilities, there is also a significant reduction in energy consumption.
Claims (5)
- Feeder, particularly for separating heavy particles, comprising a separation chamber (3) which is enclosed by a curved wall of a casing (1) and has a first deflector surface (4) and a second deflector surface (5), and containing a heavy particle collector device (9) and a separating device in which air is separated from the fine fraction of a material to be ground and is then recycled to the separation region by means of a blower (2), characterized in that the deflector surfaces (4, 5) form a central, partly open suction duct, the periphery of the deflector surface (4) extending far beyond the vertical bisector of the separation chamber (3) and thus in conjunction with the casing wall (1) forming an accelerating duct, in that after an interruption the second deflector plate (5) extends circularly to the first deflector plate (4), and in that the end terminating at the first deflector plate (4) forms with the latter another accelerating supply duct.
- Feeder according to Claim 1, characterized in that an air distribution device consisting of a curved plate (6) and a flap (7) disposed horizontally relative thereto is arranged upstream of the air feed inlet into the separation chamber (3).
- Feeder according to one of Claims 1 and 2, characterized in that the central suction duct is in the form of a sieve tube (10).
- Feeder according to one of Claims 1 to 3, characterized in that the feeder is a two-stage circulating air separator.
- Feeder according to one of Claims 1 to 4, characterized in that a spring bottom (13) consisting of a spring-tongue plate is arranged in an inlet (11) of the casing (1), the spring tongues being fixed at one end, namely the end facing the inlet (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH3875/92 | 1992-12-18 | ||
| CH387592 | 1992-12-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0602557A1 EP0602557A1 (en) | 1994-06-22 |
| EP0602557B1 true EP0602557B1 (en) | 1997-02-05 |
Family
ID=4265366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19930119923 Expired - Lifetime EP0602557B1 (en) | 1992-12-18 | 1993-12-10 | Feeder |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0602557B1 (en) |
| DE (1) | DE59305399D1 (en) |
| DK (1) | DK0602557T3 (en) |
| ES (1) | ES2099359T3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1413532A1 (en) * | 2002-10-21 | 2004-04-28 | Bühler AG | Feeder |
| USD735257S1 (en) | 2011-05-03 | 2015-07-28 | Bühler AG | Grain separator |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600954A (en) * | 2012-03-24 | 2012-07-25 | 华电电力科学研究院 | Double volute type coal dust separator |
| CN103624003B (en) * | 2013-11-03 | 2015-10-14 | 宁波市鄞州青林医疗器械技术咨询有限公司 | The centrifugal blast type fine bagasse separator of the prepared slices of Chinese crude drugs |
| DE102018132155B3 (en) * | 2018-12-13 | 2019-12-12 | Netzsch-Feinmahltechnik Gmbh | FLOWERS WITH SPECIAL FAN WHEEL |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI54681C (en) * | 1971-09-27 | 1979-02-12 | Insinoeoeritoimisto Engineerin | PNEUMATIC CLASSIFICATION FOR OVERFLOWER FUEL |
| JPS60835A (en) * | 1983-06-17 | 1985-01-05 | 山本 惣一 | Hulling apparatus |
| DE3414344A1 (en) * | 1984-04-16 | 1985-10-24 | Gebrüder Bühler AG, Uzwil | Centrifugal separator |
-
1993
- 1993-12-10 DE DE59305399T patent/DE59305399D1/en not_active Expired - Fee Related
- 1993-12-10 DK DK93119923T patent/DK0602557T3/en active
- 1993-12-10 ES ES93119923T patent/ES2099359T3/en not_active Expired - Lifetime
- 1993-12-10 EP EP19930119923 patent/EP0602557B1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1413532A1 (en) * | 2002-10-21 | 2004-04-28 | Bühler AG | Feeder |
| USD735257S1 (en) | 2011-05-03 | 2015-07-28 | Bühler AG | Grain separator |
Also Published As
| Publication number | Publication date |
|---|---|
| DK0602557T3 (en) | 1997-07-28 |
| EP0602557A1 (en) | 1994-06-22 |
| ES2099359T3 (en) | 1997-05-16 |
| DE59305399D1 (en) | 1997-03-20 |
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