EP1593436B1 - Centrifugal mill - Google Patents

Centrifugal mill Download PDF

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Publication number
EP1593436B1
EP1593436B1 EP05009569A EP05009569A EP1593436B1 EP 1593436 B1 EP1593436 B1 EP 1593436B1 EP 05009569 A EP05009569 A EP 05009569A EP 05009569 A EP05009569 A EP 05009569A EP 1593436 B1 EP1593436 B1 EP 1593436B1
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EP
European Patent Office
Prior art keywords
flow
housing
connecting piece
centrifugal fan
influencing element
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EP05009569A
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German (de)
French (fr)
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EP1593436A1 (en
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Rainer Josef Braunwarth
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/0012—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain)
    • B02C19/0018—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain) using a rotor accelerating the materials centrifugally against a circumferential breaking surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary 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
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone

Definitions

  • the invention relates to a centrifuge mill for grinding grain, cereal with a mill driven in a housing, wherein the housing for discharging regrind adjoins a blow-out.
  • centrofan mills are known and available in a variety of forms and designs on the market. They are used to produce the finest wholemeal flour for any type of dough and / or bakery products, as well as all dry herbs and non-oily seeds.
  • the ground material to be comminuted in particular the grain fed into the mill, is fed via a funnel over a rotating mill blade a grinding stone, preferably a natural stone mill rotationally accelerated until the grain dissolves in the finest flour particles.
  • a grinding stone preferably a natural stone mill rotationally accelerated until the grain dissolves in the finest flour particles.
  • the finely ground grain is added, accelerated in an upper part of the housing and passed to a Ausblasstutzen for feeding into a flour container and / or flour filter.
  • the DE 23 43 271 A1 describes a mill for recovering ground material and flours, wherein the mixture of air and flour passes into a common collection chamber, where it passes through individual baffles, to the collection chamber itself a plurality of outlets for placing several Containers for receiving small amounts of flour is formed.
  • a conventional mill for grinding regrind is in the US 2,626,757 A described. There, air is blown in through a bypass.
  • An impact mill is from the CH 417 291 A in a conventional manner for the comminution of particles by impact action and impact at a plurality of crushing walls known.
  • the present invention is therefore an object of the invention to provide a centrifuge mill of the type mentioned, which eliminates the disadvantages mentioned and with which in a cost effective and easy way clogging of the housing, in particular the exhaust nozzle is prevented.
  • a throughput and the performance of the Zentrofan mill should be significantly increased.
  • the flow-influencing element is redetachable and variable in position, that is used radially rotatable and / or axially displaceable in the outlet nozzle or inlet nozzle.
  • a conventional centrofan mill R for grinding grain in particular grain, has a frame 1 on which a housing 2 is seated.
  • a mill 4 driven in which the introduced via a funnel 5 to be ground grain is rotationally accelerated against a natural stone not shown here rotationally and in this way the grain in the finest Grind flour particles.
  • the ground grain passes through the turbulence of the mill 4 via the housing 2, in particular via an upper part 6 of the housing in a Ausblasstutzen 7, which opens directly or indirectly via an inlet port 8 in a flour container 9 or flour filter 10.
  • the inlet pipe 8 closes or opens the outlet pipe 7 of the upper part 6 of the housing 2 there.
  • FIG. 2 is simplified, as the material to be ground from the housing 2 of the mill 4 via the discharge port 7 in the flour container 9 and / or flour filter 10 to flow, the inflow occurs off-center in the flour container 9 and flour filter 10.
  • an outflow in particular an outflow behavior, is to be improved in order to reduce or exclude the solid collection and settling of ground material in the area of the exhaust nozzle as well as in the area of the upper part 6 of the housing 2.
  • the element 11 is preferably aligned centrally and inserted axially into the exhaust nozzle 7. It stands out, as in particular in the FIGS. 3 and 4 is indicated, a head portion 12 in the Ausblasstutzen 7 and is against the in FIG. 3 aligned with arrow indicated flow direction of the ground material, wherein a foot region 13 centered in the exhaust nozzle 7 protrudes.
  • the flow-influencing element 11 is, as in the FIGS. 5a and 5b is shown, formed of two, perpendicular to each other Strömungsleitmaschinen 14.1, 14.2.
  • a head region 12 of each flow guide element 14.1, 14.2 is designed to be fish-like and plate-like, with the head region 12 being parabolic in shape and a kind of fin being formed in the foot region 13.
  • each vaults 15 are formed, which still allows a small radial circulation in the exhaust nozzle 7 or inlet nozzle 8 radial type.
  • FIG. 5c a perspective view of the flow-influencing element 11 is shown.
  • Position number list ⁇ / b> 1 frame 34 67 2 casing 35 68 3 electric motor 36 69 4 Mill 37 70 5 funnel 38 71 6 top 39 72 7 blow-out 40 73 8th inlet port 41 74 9 hopper 42 75 10 flour sifter 43 76 11 element 44 77 12 head area 45 78 13 foot area 46 79 14 flow guide 47 15 bulge 48 16 49 R Zentrofan mill 17 50 18 51 19 52 20 53 21 54 22 55 23 56 24 57 25 58 26 59 27 60 28 61 29 62 30 63 31 64 32 65 33 66

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Food-Manufacturing Devices (AREA)
  • Discharge Heating (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)

Abstract

The mill is driven in a housing (2) which has a blow-out pipe (7) for discharging the ground material. At least one element (11) is inserted in a region of the blow-out pipe in order to influence the flow and prevent blockage. An element for influencing the flow can also be used in a region of an inlet pipe of a meal container on the outlet side of the housing. The flow-influencing element can comprise two flow direction elements aligned perpendicular to each other and welded together.

Description

Die Erfindung betrifft eine Zentrofan-Mühle zum Mahlen von Korn, Getreide mit einer in einem Gehäuse angetriebenen Mühle, wobei an das Gehäuse zum Austragen von Mahlgut ein Ausblasstutzen anschliesst.The invention relates to a centrifuge mill for grinding grain, cereal with a mill driven in a housing, wherein the housing for discharging regrind adjoins a blow-out.

Derartige Zentrofan-Mühlen sind in vielfältiger Form und Ausführung auf dem Markt bekannt und erhältlich. Sie dienen der Herstellung von feinstem Vollkornmehl für jegliche Art von Teig und/oder Backwaren sowie alle trockenen Kräuter und nicht ölhaltige Samen.Such centrofan mills are known and available in a variety of forms and designs on the market. They are used to produce the finest wholemeal flour for any type of dough and / or bakery products, as well as all dry herbs and non-oily seeds.

Bei herkömmlichen Zentrofan-Mühlen wird über einen Trichter das zu zerkleinernde Mahlgut, insbesondere das Korn in die Mühle eingegeben, über ein rotierendes Mühlenblatt gegen einen Mahlstein, vorzugsweise einen Naturmahlstein rotatorisch beschleunigt, bis das Korn sich in feinste Mehlteilchen auflöst. Durch einen entsprechenden Luftstrom wird das feingemahlene Korn aufgenommen, in einem Oberteil des Gehäuses beschleunigt und einem Ausblasstutzen zum Zuführen in einen Mehlbehälter und/oder Mehlfilter geleitet.In conventional centrofan mills, the ground material to be comminuted, in particular the grain fed into the mill, is fed via a funnel over a rotating mill blade a grinding stone, preferably a natural stone mill rotationally accelerated until the grain dissolves in the finest flour particles. By a corresponding air flow, the finely ground grain is added, accelerated in an upper part of the housing and passed to a Ausblasstutzen for feeding into a flour container and / or flour filter.

Dabei hat sich häufig beim Ausblasen des gemahlenen Mahlgutes als nachteilig erwiesen, dass insbesondere der obere Bereich des Gehäuseteiles und/oder der Bereich des Ausblasstutzens zum Verstopfen neigt.It has often proved to be disadvantageous when blowing out the ground material to be ground that, in particular, the upper region of the housing part and / or the region of the exhaust nozzle tends to become clogged.

Dann muss die Mühle abgestellt werden, die Ansammlungen bzw. Verklumpungen aufwendig entfernt werden, was unerwünscht ist. Zudem sind die herkömmlichen Zentrofan-Mühlen betreffend ihres Durchsatzes beschränkt.Then the mill must be turned off, the accumulations or lumps are removed consuming, which is undesirable. In addition, the conventional Zentrofan mills are limited in their throughput.

Die Veröffentlichung von Trautner W. et.al.: "Die Zentrofan-Mühle", Internet Artikel vom 21.05.2003 , XP002341501, offenbart eine herkömmliche Zentrofan-Mühle, wobei zwischen einem Gehäuse der Mühle und einem Mehlbehälter bzw. Mehlfilter ein Ausblasstutzen gebildet ist. Nach einem Zerkleinern des Mahlgutes in der Mühle wird das Gemisch aus Mahlgut und Gut oder Luft über dem Mehlfilter in dem Mehlbehälter durch den Ausblasstutzen geleitet.The publication of Trautner W. et.al .: "The Centrofan Mill", Internet Article dated 21.05.2003 , XP002341501, discloses a conventional centrofan mill, wherein a discharge nozzle is formed between a housing of the mill and a flour container or flour filter. After crushing the material to be ground in the mill, the mixture of ground material and good or air is passed over the flour filter in the flour container through the Ausblasstutzen.

Die DE 23 43 271 A1 beschreibt eine Mühle zur Gewinnung von Mahlgut und Mehlen, wobei das Gemisch aus Luft und Mehl in eine gemeinsame Sammelkammer gelangt, dort einzelne Schikanen durchläuft, wobei an die Sammelkammer selbst eine Mehrzahl von Auslässen zum Aufsetzen von mehreren Aufnahmebeuteln zur Aufnahme von geringen Mengen an Mehl gebildet ist.The DE 23 43 271 A1 describes a mill for recovering ground material and flours, wherein the mixture of air and flour passes into a common collection chamber, where it passes through individual baffles, to the collection chamber itself a plurality of outlets for placing several Containers for receiving small amounts of flour is formed.

Eine herkömmliche Mühle zum Zerkleinern von Mahlgut wird in der US 2,626,757 A beschrieben. Dort wird über einen Bypass zusätzlich Luft eingeblasen.A conventional mill for grinding regrind is in the US 2,626,757 A described. There, air is blown in through a bypass.

Eine Prallmühle ist aus der CH 417 291 A in herkömmlicher Art zur Zerkleinerung von Teilchen durch Schlagwirkung und Anprallen an einer Vielzahl von Zerkleinerungswandungen bekannt.An impact mill is from the CH 417 291 A in a conventional manner for the comminution of particles by impact action and impact at a plurality of crushing walls known.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Zentrofan-Mühle der eingangs genannten Art zu schaffen, welche die genannten Nachteile beseitigt und mit welcher auf kostengünstige und einfache Weise ein Verstopfen des Gehäuses, insbesondere des Ausblasstutzens verhindert wird. Zusätzlich soll ein Durchsatz bzw. die Leistung der Zentrofan-Mühle erheblich gesteigert werden.The present invention is therefore an object of the invention to provide a centrifuge mill of the type mentioned, which eliminates the disadvantages mentioned and with which in a cost effective and easy way clogging of the housing, in particular the exhaust nozzle is prevented. In addition, a throughput and the performance of the Zentrofan mill should be significantly increased.

Zur Lösung dieser Aufgabe führt, dass in einem Bereich des Ausblasstutzens in diesem das zumindest eine strömungsbeeinflussende Element aus zwei zueinander in etwa lotrecht ausgerichteten Strömungsleitelementen gebildet ist, fest, wiederlösbar oder lageveränderbar eingesetzt ist.To achieve this object, that in a region of the Ausblastutzens in which the at least one flow-influencing element is formed from two mutually approximately vertically aligned flow guide, fixed, redetachable or variable position is used.

Bei der vorliegenden Erfindung hat sich als besonders vorteilhaft erwiesen, insbesondere in den Bereichen eines Ausblasstutzens eines Gehäuses oder Einlassstutzens, welcher die Verbindung zwischen Gehäuse bzw. Mühle und dem Mehlbehälter bzw. Mehlfilter herstellt, ein strömungsbeeinflussendes Element einzusetzen. Hierbei sind unterschiedliche Möglichkeiten denkbar, das zumindest eine strömungsbeeinflussende Element fest, lageveränderbar oder wiederlösbar einzusetzen. Diese können unterschiedliche Formen aufweisen, wie beispielsweise einfache Leitbleche od. dgl.. Hierauf soll die Erfindung nicht beschränkt sein.In the present invention has proved to be particularly advantageous, in particular in the areas of a Ausputzutzens a housing or inlet nozzle, which makes the connection between the housing or mill and the flour container or flour filter to use a flow-influencing element. In this case, different possibilities are conceivable that use at least one flow-influencing element fixed, positionally variable or releasable. These may have different shapes, such as simple baffles od. Like .. The invention should not be limited thereto.

Es hat sich bei der vorliegenden Erfindung als besonders vorteilhaft erwiesen, als strömungsbeeinflussendes Element, ein Element, gebildet aus zwei in etwa zueinander lotrecht ausgerichteten Strömungsleitelementen zu bilden, die einen Fussbereich und einen Kopfbereich aufweisen. Diese sind in der Form etwa fischartig ausgebildet, wobei sich hierdurch die Strömung im Ausblasstutzen oder Einblasstutzen vergleichmässigt und sich hierdurch Ablagerungen vermeiden lassen. Hierdurch wird zusätzlich eine konstante Strömung des Mahlgutes gewährleistet, was zur Erhöhung des Durchsatzes führt. Bevorzugt ist das strömungsbeeinflussende Element wiederlösbar und lageveränderbar, d.h. radial verdrehbar und/oder axial verschiebbar im Ausblasstutzen oder Einlassstutzen eingesetzt ist.It has proven to be particularly advantageous in the present invention, as a flow-influencing element, to form an element formed from two flow guides oriented approximately perpendicular to one another, which have a foot region and a head region. These are formed in the form of fish-like, whereby the flow in the exhaust nozzle or Einblasstutzen thereby uniform and can thereby avoid deposits. As a result, a constant flow of the ground material is additionally ensured, which leads to an increase in throughput. Preferably, the flow-influencing element is redetachable and variable in position, that is used radially rotatable and / or axially displaceable in the outlet nozzle or inlet nozzle.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiel sowie anhand der Zeichnungen; diese zeigen in

  • Figur 1 eine schematisch dargestellte perspektivische Ansicht einer Zentrofan-Mühle mit anschliessendem Mehlbehälter und Mehlfilter;
  • Figur 2 eine schematisch dargestellte Draufsicht auf einen Teil der Zentrofan-Mühle, insbesondere im Bereich eines Oberteils eines Gehäuses mit anschliessendem Ausblasstutzen zum Austragen von Mahlgut in einem Mehlbehälter und/oder Mehlfilter;
  • Figur 3 einen schematisch dargestellten Teilquerschnitt durch einen Teil des Gehäuses der Zentrofan-Mühle mit erfindungsgemäss eingesetztem strömungsbeeinflussenden Element gemäss Figur 4 entlang Linie IV-IV;
  • Figur 4 eine schematisch dargestellte Draufsicht auf ein Oberteil eines Gehäuses der Zentrofan-Mühle zum Austragen von Mahlgut mit anschliessendem Ausblasstutzen zum Anbinden an einen Mehlbehälter oder Mehlfilter;
  • Figur 5a eine schematisch dargestellte Seitenansicht auf ein strömungsbeeinflussendes Element zum Einsetzen in einen Ausblasstutzen oder Einblasstutzen;
  • Figur 5b eine schematisch dargestellte Draufsicht auf das strömungsbeeinflussende Element gemäss Figur 5a;
  • Figur 5c eine schematisch dargestellte Ansicht des strömungsbeeinflussenden Elementes gemäss den Figuren 5a und 5b.
Further advantages, features and details of the invention will become apparent from the following description of a preferred embodiment and from the drawings; these show in
  • FIG. 1 a schematically illustrated perspective view of a centrifuge mill with subsequent flour container and flour filter;
  • FIG. 2 a schematically illustrated plan view of a part of the centrifuge mill, in particular in the region of an upper part of a housing with subsequent Ausblasstutzen for discharging ground material in a flour container and / or flour filter;
  • FIG. 3 a schematically illustrated partial cross section through a part of the housing of the centrifuge mill according to the invention inserted according to the flow-influencing element FIG. 4 along line IV-IV;
  • FIG. 4 a schematically illustrated plan view of an upper part of a housing of the centrifuge mill for discharging regrind with subsequent Ausblasstutzen for attachment to a flour container or flour filter;
  • FIG. 5a a schematically illustrated side view of a flow-influencing element for insertion into a discharge nozzle or Einblasstutzen;
  • FIG. 5b a schematically illustrated plan view of the flow-influencing element according to FIG. 5a ;
  • FIG. 5c a schematically illustrated view of the flow-influencing element according to the FIGS. 5a and 5b ,

Gemäss Figur 1 weist eine herkömmliche Zentrofan-Mühle R zum Mahlen von Korn, insbesondere Getreide, ein Gestell 1 auf, auf welchem ein Gehäuse 2 aufsitzt. Im Gehäuse 2 ist, hier nicht näher dargestellt, über einen Elektromotor 3 eine Mühle 4 angetrieben, in welcher das über einen Trichter 5 eingebrachte zu mahlende Korn rotativ gegenüber einem hier nicht näher dargestellten Naturmahlstein rotativ beschleunigt wird und sich auf diese Weise das Korn in feinste Mehlteilchen mahlen lässt.According to FIG. 1 For example, a conventional centrofan mill R for grinding grain, in particular grain, has a frame 1 on which a housing 2 is seated. In the housing 2, not shown here, via an electric motor 3, a mill 4 driven, in which the introduced via a funnel 5 to be ground grain is rotationally accelerated against a natural stone not shown here rotationally and in this way the grain in the finest Grind flour particles.

Das gemahlene Korn gelangt durch die Turbulenzen der Mühle 4 über das Gehäuse 2, insbesondere über ein Oberteil 6 des Gehäuses in einen Ausblasstutzen 7, welcher direkt oder indirekt über einen Einlassstutzen 8 in einen Mehlbehälter 9 oder Mehlfilter 10 mündet.The ground grain passes through the turbulence of the mill 4 via the housing 2, in particular via an upper part 6 of the housing in a Ausblasstutzen 7, which opens directly or indirectly via an inlet port 8 in a flour container 9 or flour filter 10.

Vorzugsweise schliesst im Bereich zwischen Mehlfilter 10 und Mehlbehälter 9 der Einlassstutzen 8 an bzw. mündet der Auslassstutzen 7 des Oberteiles 6 des Gehäuses 2 dort ein.Preferably, in the area between the flour filter 10 and the flour container 9, the inlet pipe 8 closes or opens the outlet pipe 7 of the upper part 6 of the housing 2 there.

In Figur 2 ist vereinfacht dargestellt, wie das Mahlgut aus dem Gehäuse 2 der Mühle 4 über den Ausblasstutzen 7 in den Mehlbehälter 9 und/oder Mehlfilter 10 einströmen, wobei das Einströmen aussermittig in dem Mehlbehälter 9 bzw. Mehlfilter 10 erfolgt.In FIG. 2 is simplified, as the material to be ground from the housing 2 of the mill 4 via the discharge port 7 in the flour container 9 and / or flour filter 10 to flow, the inflow occurs off-center in the flour container 9 and flour filter 10.

Bei der vorliegenden Erfindung hat sich als besonders vorteilhaft erwiesen, wie es im Ausführungsbeispiel gemäss den Figuren 3 und 4 dargestellt ist in den Ausblasstutzen 7 ein strömungsbeeinflussendes Element 11 einzusetzen. Hierdurch wird ein Ausströmen, insbesondere ein Ausströmverhalten zu verbessern, um ein Festsammeln und Festsetzen von Mahlgut im Bereich des Ausblasstutzens sowie im Bereich des Oberteiles 6 des Gehäuses 2 zu vermindern bzw. auszuschliessen. Das Element 11 ist vorzugsweise mittig ausgerichtet und axial in den Ausblasstutzen 7 eingesetzt. Dabei ragt, wie es insbesondere in den Figuren 3 und 4 angedeutet ist, ein Kopfbereich 12 in den Ausblasstutzen 7 ein und ist gegen die in Figur 3 mit Pfeil angedeutete Strömungsrichtung des Mahlgutes ausgerichtet, wobei ein Fussbereich 13 zentriert in den Ausblasstutzen 7 einragt.In the present invention has proved to be particularly advantageous, as in the embodiment according to the FIGS. 3 and 4 is shown in the exhaust port 7th to use a flow-influencing element 11. As a result, an outflow, in particular an outflow behavior, is to be improved in order to reduce or exclude the solid collection and settling of ground material in the area of the exhaust nozzle as well as in the area of the upper part 6 of the housing 2. The element 11 is preferably aligned centrally and inserted axially into the exhaust nozzle 7. It stands out, as in particular in the FIGS. 3 and 4 is indicated, a head portion 12 in the Ausblasstutzen 7 and is against the in FIG. 3 aligned with arrow indicated flow direction of the ground material, wherein a foot region 13 centered in the exhaust nozzle 7 protrudes.

Das strömungsbeeinflussende Element 11 ist, wie es in den Figuren 5a und 5b dargestellt ist, aus zwei, lotrecht zueinander stehenden Strömungsleitelementen 14.1, 14.2 gebildet. Dabei ist vorzufsweise ein Kopfbereich 12 eines jeden Strömungsleitelementes 14.1, 14.2 von seiner Form her fischartig und plattenartig ausgebildet, wobei der Kopfbereich 12 parabelartig ausgebildet ist und im Fussbereich 13 eine Art Flosse gebildet ist. Zwischen dem Fussbereich 13 bzw. seiner Flosse und dem Kopfbereich 12 sind jeweils Wölbungen 15 gebildet, die eine geringe radiale Zirkulation im Ausblasstutzen 7 oder Einlassstutzen 8 radialer Art noch ermöglicht.The flow-influencing element 11 is, as in the FIGS. 5a and 5b is shown, formed of two, perpendicular to each other Strömungsleitelementen 14.1, 14.2. In this case, a head region 12 of each flow guide element 14.1, 14.2 is designed to be fish-like and plate-like, with the head region 12 being parabolic in shape and a kind of fin being formed in the foot region 13. Between the foot portion 13 and its fin and the head portion 12 each vaults 15 are formed, which still allows a small radial circulation in the exhaust nozzle 7 or inlet nozzle 8 radial type.

In Figur 5c ist eine perspektivische Ansicht des strömungsbeeinflussenden Elementes 11 aufgezeigt. Positionszahlenliste 1 Gestell 34 67 2 Gehäuse 35 68 3 Elektromotor 36 69 4 Mühle 37 70 5 Trichter 38 71 6 Oberteil 39 72 7 Ausblasstutzen 40 73 8 Einlassstutzen 41 74 9 Mehlbehälter 42 75 10 Mehlfilter 43 76 11 Element 44 77 12 Kopfbereich 45 78 13 Fussbereich 46 79 14 Strömungsleitelement 47 15 wölbung 48 16 49 R Zentrofan-Mühle 17 50 18 51 19 52 20 53 21 54 22 55 23 56 24 57 25 58 26 59 27 60 28 61 29 62 30 63 31 64 32 65 33 66 In FIG. 5c a perspective view of the flow-influencing element 11 is shown. <B> Position number list </ b> 1 frame 34 67 2 casing 35 68 3 electric motor 36 69 4 Mill 37 70 5 funnel 38 71 6 top 39 72 7 blow-out 40 73 8th inlet port 41 74 9 hopper 42 75 10 flour sifter 43 76 11 element 44 77 12 head area 45 78 13 foot area 46 79 14 flow guide 47 15 bulge 48 16 49 R Zentrofan mill 17 50 18 51 19 52 20 53 21 54 22 55 23 56 24 57 25 58 26 59 27 60 28 61 29 62 30 63 31 64 32 65 33 66

Claims (11)

  1. Centrifugal fan mill for grinding corn, grain with a mill (4) that is driven in a housing (2), wherein adjoining the housing (2) is a blow-out connecting piece (7) for discharging ground material,
    characterized in
    that in the blow-out connecting piece (7) in one region thereof the at least one flow-influencing element (11), which is formed by two flow-directing elements (14.1, 14.2) that are oriented approximately perpendicular to one another, is inserted in a fixed, detachable or positionally variable manner.
  2. Centrifugal fan mill for grinding corn, grain with a mill (4) that is driven in a housing (2), wherein adjoining the housing (2) is a blow-out connecting piece (7) for discharging ground material, characterized in that in a region of an inlet connecting piece (8) of a flour container (9) or flour filter (10) disposed downstream of the housing (2) at least one flow-influencing element (11) is inserted, wherein the at least one flow-influencing element (11) is formed by two flow-directing elements (14.1, 14.2) that are oriented approximately perpendicular to one another.
  3. Centrifugal fan mill according to claim 1 or 2, characterized in that the flow-influencing element (11) is composed of two flow-directing elements (14.1, 14.2) that are oriented approximately perpendicular to one another and connected in a fixed manner, in particular welded in a fixed manner, to one another.
  4. Centrifugal fan mill according to claim 3, characterized in that the two flow-directing elements (14.1, 14.2) that are oriented perpendicular to one another and connected in a fixed manner to one another form a head region (12) that is of an approximately parabolic design.
  5. Centrifugal fan mill according to at least one of claims 3 to 4, characterized in that the two flow-directing elements (14.1, 14.2) of the flow-influencing element (11) form a foot region (13) that is of a fin-like design.
  6. Centrifugal fan mill according to claim 5, characterized in that between head region (12) and foot region (13) in the flow-directing element (14.1 and/or 14.2) an inwardly directed curvature (15) is formed.
  7. Centrifugal fan mill according to claim 5 or 6, characterized in that a foot region (13) of each flow-directing element (14) is curved slightly inwards at the end face.
  8. Centrifugal fan mill according to at least one of claims 4 to 7, characterized in that the flow-influencing element (11) in its head region (12) is inserted so as to be oriented counter to the direction of flow in the blow-out connecting piece (7) of the housing (2) or inlet connecting piece (8) of the flour container (9) or flour filter (10).
  9. Centrifugal fan mill according to at least one of claims 1 to 8, characterized in that the flow-influencing element (11) is inserted in axial direction of the blow-out connecting piece (7) of the housing (2) and/or inlet connecting piece (8) of the flour container (9) or flour filter (10).
  10. Centrifugal fan mill according to at least one of claims 1 to 9, characterized in that the flow-influencing element (11) is inserted so as to be radially rotatable and/or displaceable in axial direction of the blow-out connecting piece (7) of the housing (2) or inlet connecting piece (8) of a flour container (9) or flour filter (10), wherein a radial position of the flow-influencing element (11) is variable and/or fixable.
  11. Centrifugal fan mill according to at least one of claims 1 to 10, characterized in that the blow-out connecting piece (7) adjoins an upper part (6) of the housing (2) and the at least one flow-influencing element (11) is inserted into said upper part (6) in a fixed, detachable or positionally variable manner.
EP05009569A 2004-05-06 2005-05-02 Centrifugal mill Not-in-force EP1593436B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004022870A DE102004022870A1 (en) 2004-05-06 2004-05-06 Zentrofan mill
DE102004022870 2004-05-06

Publications (2)

Publication Number Publication Date
EP1593436A1 EP1593436A1 (en) 2005-11-09
EP1593436B1 true EP1593436B1 (en) 2009-09-02

Family

ID=34936030

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Application Number Title Priority Date Filing Date
EP05009569A Not-in-force EP1593436B1 (en) 2004-05-06 2005-05-02 Centrifugal mill

Country Status (3)

Country Link
EP (1) EP1593436B1 (en)
AT (1) ATE441479T1 (en)
DE (2) DE102004022870A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4252909A1 (en) 2022-03-31 2023-10-04 Unterweger Edelstahl + Maschinenbau GmbH & Co. KG Cereal mill

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626757A (en) * 1949-01-22 1953-01-27 Allis Chalmers Mfg Co Attrition mill
CH417291A (en) * 1963-08-14 1966-07-15 Douglas Aircraft Co Inc Impact mill
FR2198389A5 (en) * 1972-08-31 1974-03-29 Zimmer Raymond

Also Published As

Publication number Publication date
EP1593436A1 (en) 2005-11-09
ATE441479T1 (en) 2009-09-15
DE102004022870A1 (en) 2005-12-01
DE502005008025D1 (en) 2009-10-15

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