EP0607853B1 - Flaking mill with a product channel on each of the axial ends of the rollers - Google Patents
Flaking mill with a product channel on each of the axial ends of the rollers Download PDFInfo
- Publication number
- EP0607853B1 EP0607853B1 EP94100344A EP94100344A EP0607853B1 EP 0607853 B1 EP0607853 B1 EP 0607853B1 EP 94100344 A EP94100344 A EP 94100344A EP 94100344 A EP94100344 A EP 94100344A EP 0607853 B1 EP0607853 B1 EP 0607853B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide face
- guide
- rollers
- roller mill
- product
- 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
- 239000008187 granular material Substances 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims 1
- 238000005096 rolling process Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 3
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/286—Feeding devices
Definitions
- FIG. 1 shows a rolling mill 1 with a pair of rolls consisting of the rolls 2 and 3 (see FIGS. 2 and 3), of which only the roller 2 can be seen in FIG. 1.
- These rollers rotate about an axis of rotation 5 and are rotatably supported in bearing bracket 6, as well by means of a drive pulley 7 (only one shown) or a drive pulley and one Overdrive (not shown) driven.
- the product is fed into the rolling mill and thus into the product distributor 9 by a product feed 10, e.g. a mechanical feed.
- a product feed 10 e.g. a mechanical feed.
- the rocker arm 11.2 has a product guide 19.2, which has the same function as the product guide 19.1 on the left side of Fig. 1.
- the rocker arm 11.2, inclusive the product guide 19.2 can be pivoted by means of a pivot bearing 37.1 stationary housing part 38 mounted.
- a control controls the cylinder-piston unit 16 such that the Rocker arm 11.1, 11.2 is pivoted counterclockwise, so that with the channel ⁇ formed so far opened for a predetermined short time is that the material accumulated on the guide surface 12.1, 41 can get down towards the rotary flap 24.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Metal Rolling (AREA)
Description
Die Erfindung betrifft ein Flockierwalzwerk gemäss Oberbegriff des ersten Anspruches.The invention relates to a flaking mill according to the preamble of the first claim.
Aus der EP 271 828 derselben Anmelderin ist ein Walzwerk bekannt, bei welchem an beiden Stirnseiten der Walzen, Produktführungen vorgesehen sind, die das gegen die Enden der Walzen hinausgespeiste Produkt zurück in den Mahlspalt führen.From EP 271 828 of the same applicant, a rolling mill is known, in which on both end faces of the rollers, product guides are provided, which against that feed the ends of the rollers fed product back into the grinding gap.
Im weiteren ist es bekannt, dass das in den Mahlspalt resp. in den konvergierenden Spalt zwischen den Walzen eingespeiste Produkt, welches nicht direkt eingezogen wird, eine Tendenz hat, gegen die Enden der Walzen zu fliessen, so dass vorwiegend Knollen, Grobteile etc. im Produkt, die granulationsmässig wesentlich grösser sind als das Produkt selbst und deshalb vom Mahlspalt nicht erfasst werden, der vorgenannten Tendenz entsprechend an die Enden der Walzen gelangen.Furthermore, it is known that the resp. in the converging Gap between the rollers fed product, which is not fed directly has a tendency to flow towards the ends of the rollers so that predominantly Bulbs, coarse particles, etc. in the product, which are significantly larger in terms of granulation are as the product itself and therefore not covered by the grinding gap, the aforementioned Appropriate tendency to get to the ends of the rollers.
Walzwerke des Standes der Technik, welche bereits für die EP 271 828 Stand der Technik waren, waren so gebaut, dass die Walzen an ihren Enden keine Anschrägung aufwiesen und mit den Stirnseiten der Walzen dicht gegen die Stirnwände des Walzwerkes angrenzten, so dass das Produkt bis an die Stirnwände des Walzwerkes fliessen konnte, was zum Resultat hatte, dass vorgenannte Knollen oder andere Grobteile an den Enden der Walzen in Bewegung gehalten wurden, bis diese durch Verschleiss eine Grösse erreicht hatten, welche das Einziehen in den Mahlspalt erlaubte. Im Zeitpunkt des Einzuges sind diese Teile aber noch grösser als die Granulation des Produktes, d.h. die Verformungskräfte sind höher und damit auch die Oberflächenbelastung der Walzen. Solche Belastungen können zu Beschädigungen der Walzen führen, insbesondere wenn dieser Umstand am Walzenende auftritt. Die Folgen sind ausgebrochene Walzenenden. Rolling mills of the prior art, which have already been used for EP 271 828 Technology were built in such a way that the rollers had no bevel at their ends and with the end faces of the rollers close to the end walls of the Rolling mill adjacent, so that the product up to the end walls of the rolling mill could flow, which resulted in the aforementioned tubers or others Rough parts at the ends of the rollers were kept in motion until they were through Wear had reached a size that allowed them to be drawn into the grinding gap. At the time of moving in, however, these parts are even larger than the granulation of the product, i.e. the deformation forces are higher and therefore also the Surface load on the rollers. Such loads can cause damage of the rollers, especially if this occurs at the end of the roller. The The consequences are broken roller ends.
Um die dadurch entstehenden unterschiedlichen Mahlverhältnisse zum Teil zu vermeiden, wurde bereits in der EP 271 828 vorgeschlagen, an den Walzenenden eine Anschrägung vorzusehen, an welche eine Führungsfläche angrenzt und verhindert, dass die genannten Grobteile in dem durch die Anschrägung gebildeten Kanal an den Enden der Walzen unverarbeitet an den Walzen vorbeigelangen können.In order to partially avoid the resulting different grinding conditions, was already proposed in EP 271 828, one at the roller ends To provide a bevel to which a guide surface adjoins and prevents that the coarse parts mentioned in the channel formed by the bevel the ends of the rollers can pass the rollers unprocessed.
Diese Anschrägungen haben zwar den Vorteil, dass die vorgenannten Knollen oder anderen Grobteile ohne Beschädigung der Walzen in diesem Bereich verharren, jedoch den Nachteil, dass der Materialfluss gestört wird.These bevels have the advantage that the aforementioned bulbs or other coarse parts remain in this area without damaging the rollers, however the disadvantage that the material flow is disturbed.
Es bestand deshalb die Aufgabe, diesen vorgenannten Nachteil zu beheben, was erfindungsgemäss durch die im Kennzeichen des ersten Anspruches aufgeführte Kombinationen an Merkmalen behoben wird.It was therefore the task of remedying this disadvantage mentioned above, what according to the invention by that listed in the characterizing part of the first claim Combinations of characteristics is fixed.
Weitere vorteilhafte Ausführungsformen sind in den weiteren Ansprüchen aufgeführt.Further advantageous embodiments are listed in the further claims.
Die Erfindung ist anhand von Ausführungsbeispielen mit Hilfe der nachfolgenden Figuren gezeigt und beschrieben.The invention is based on exemplary embodiments with the aid of the following figures shown and described.
Es zeigt:
Die Fig. 1 zeigt ein Walzwerk 1 mit einem Walzenpaar bestehend aus den Walzen 2
und 3 (siehe Fig. 2 und 3), wovon in Fig. 1 nur die Walze 2 ersichtlich ist. Diese Walzen
drehen um eine Drehachse 5 und sind in Lagerträger 6 drehbar gelagert, sowie
mittels einer Antriebsscheibe 7 (nur eine gezeigt) oder einer Antriebsscheibe und einem
Uebertrieb (nicht gezeigt) angetrieben.1 shows a rolling mill 1 with a pair of rolls consisting of the
Das von den Walzen zu verarbeitende Produkt, z.B. Körner oder Granulate, welche
z.B. flockiert werden müssen, werden durch eine Speisewalze 8 eingespeist, die ihrerseits
das Produkt vom Produktverteiler 9 erhält.The product to be processed by the rollers, e.g. Grains or granules, which
e.g. must be flaked, are fed by a
Die Zufuhr des Produktes in das Walzwerk und damit in den Produktverteiler 9 geschieht
durch eine Produktzufuhr 10, z.B. eine mechanische Zufuhr.The product is fed into the rolling mill and thus into the
Die Walzen 2 und 3 weisen an den Stirnseiten Anschrägungen 43 auf, welche, wie in
Fig. 2 und 3 dargestellt, einen Kanal mit einem Oeffnungswinkel α von 60° - 100° vorzugsweise
von 90° ergeben, durch welchen Produkt an den Stirnseiten unverarbeitet
durchtreten könnte, wenn nicht ein erfindungsgemässer The
Kipphebel 11.1, 11.2 mit einer Führungsfläche 12.1, 41 den vorgenannten Durchlass verschliessen würde.Rocker arm 11.1, 11.2 with a guide surface 12.1, 41 the aforementioned passage would close.
Die Produktführung 19.1 ist, wie mit Figur 2 dargestellt, kanalförmig ausgebildet und
sorgt dafür, dass Produkt, welches über die Stirnseite der Walzen 2 und 3 gelangt
mittels der Führungsfläche 12.1 zurück in den Mahlspalt.As shown in FIG. 2, the product guide 19.1 is channel-shaped and
ensures that product that passes over the end of
Zwischen dem Lagerträger 6 und der jeweiligen Stirnseite der Walzen 2 und 3 ist eine
stationäre Stirnwand 22 vorgesehen, welche Teil eines Gehäuses ist, das die Walzen
umschliesst.Between the
Am unteren Ende der Stirnwand 22 ist eine Schrägführung 23 vorgesehen, an die
eine Drehklappe 24, angeschlossen ist. At the lower end of the
Die Figur 1 zeigt auf der linken Seite, d.h. links der das Walzwerk betreffenden Symmetrieebene
S, ein Kipphebel 11.1 mit einer Führungsfläche 12.1 und eine Produktführung
19.1, die ein festes Teil bilden, welches als Ganzes schwenkbar, mittels eines
Schwenklagers 37 an einem stationären Gehäuseteil 38 angeordnet ist. Figure 1 shows on the left side, i.e. left of the plane of symmetry concerning the rolling mill
S, a rocker arm 11.1 with a guide surface 12.1 and a product guide
19.1, which form a fixed part which can be pivoted as a whole by means of a
Swivel bearing 37 is arranged on a
Das Antriebsmittel des Kipphebels 11.1 und der Produktführung 19.1, ist eine Zylinder-Kolben-Einheit
16.1, welche mittels eines Schwenkachse 15.1 an der Produktführung
19.1, und mittels eines Schwenklagers 17.1 an einem stationären Gehäuseteil
39 angeordnet ist.The drive means of the rocker arm 11.1 and the product guide 19.1 is a cylinder-piston unit
16.1, which by means of a pivot axis 15.1 on the product guide
19.1, and by means of a pivot bearing 17.1 on a
Dasselbe gilt auf der rechten Seite von Fig. 2, d.h. rechts der Symmetrieebene S für
die Antriebsmittel eines Kipphebels 11.2, dessen Führungsfläche 41 Teil einer Führungsrolle
40 ist, welche drehbar am Kipphebel 11.2 angeordnet ist und dieselbe
Funktion hat, wie die Führungsflächen 12 resp. 12.1.The same applies on the right side of Fig. 2, i.e. right of the plane of symmetry S for
the drive means of a rocker arm 11.2, the
Der Kipphebel 11.2 weist eine Produktführung 19.2 auf, welche dieselbe Funktion hat
wie die Produktführung 19.1 auf der linken Seite der Fig. 1. Der Kipphebel 11.2, inklusive
die Produktführung 19.2 ist mittels eines Schwenklagers 37.1 schwenkbar im
stationären Gehäuseteil 38 gelagert.The rocker arm 11.2 has a product guide 19.2, which has the same function
as the product guide 19.1 on the left side of Fig. 1. The rocker arm 11.2, inclusive
the product guide 19.2 can be pivoted by means of a pivot bearing 37.1
Eine nicht gezeigte Steuerung steuert derart die Zylinder-Kolben-Einheit 16, dass der
Kipphebel 11.1, 11.2 in Gegenuhrzeigerrichtung geschwenkt wird, so dass der mit
dem Winkel α gebildete Kanal während einer vorgegebenen kurzen Zeit soweit geöffnet
wird, dass das sich auf der Führungsfläche 12.1, 41 angesammelte Material
nach unten in Richtung Drehklappe 24 gelangen kann. A control, not shown, controls the cylinder-piston unit 16 such that the
Rocker arm 11.1, 11.2 is pivoted counterclockwise, so that with
the channel α formed so far opened for a predetermined short time
is that the material accumulated on the guide surface 12.1, 41
can get down towards the
Gleichzeitig mit dem Schwenken des Kipphebels 11.1, 11.2 wird die Drehklappe 24
geöffnet, so dass das vorgenannte von der Führungsfläche 12.1, 41 abgegebene
Material in ein Auffangelement (nicht gezeigt) gelangen kann.Simultaneously with the pivoting of the rocker arm 11.1, 11.2, the
Eine Zylinder-Kolben-Einheit 27 wird dabei über ein mit der Steuerung verbundenen
Ventil mittels einer Druckleitung derart mit Druck beaufschlagt, dass eine sich in der
Zylinder-Kolben-Einheit 27 befindliche Feder zusammengedrückt wird, wodurch die
Drehklappe 24 im Gegenuhrzeigersinn geschwenkt, d.h. geöffnet wird.A cylinder-
Die Zylinder-Kolben-Einheit 27 ist an einem stationären Gehäuseteil 28 schwenkbar
angeordnet.The cylinder-
Die Steuerung kann so vorgesehen werden, dass der Kipphebel 11.1, 11.2 samt
Drehklappe 24 mit einem vorgegebenen Takt, d.h. vorgegebenem Zeitabstand geöffnet
wird, oder es kann ein Taktgeber vorgesehen sein, mittels welchem der Takt variabel
eingestellt wird. The control can be provided so that the rocker arm 11.1, 11.2 together
Rotary
Eine weitere Ausführungsform besteht darin, dass die Führungsfläche oder 12.1 mit einem Dehnmessstreifen (nicht gezeigt) zu versehen ist, welcher eine allfällige, wenn auch minime Durchbiegung der Führungsfläche, die sich jedoch ausserhalb einer vorgegebenen Toleranzbreite befindet, feststellt, und dadurch ebenfalls ein Signal an die Steuerung abgibt, um die zuvorgenannte Oeffnung des Kipphebers 11.1 zu veranlassen. Another embodiment is that the guide surface or 12.1 with a strain gauge (not shown) is to be provided, which, if any also minimal deflection of the guide surface, which is outside of one predetermined tolerance range, determines, and thereby also a signal the control gives up to cause the aforementioned opening of the tilt jack 11.1.
- 11
- WalzwerkRolling mill
- 2, 32, 3
- Walzeroller
- 44th
- WalzenspaltNip
- 55
- DrehachseAxis of rotation
- 66
- LagerträgerBearing bracket
- 77
- AntriebsscheibeTraction sheave
- 88th
- SpeisewalzeFeed roller
- 99
- ProduktverteilerProduct distributor
- 1010th
- ProduktzufuhrProduct supply
- 11, 11.1,11, 11.1,
- Kipphebelrocker arm
- 12.1, 4112.1, 41
- FührungsflächeLeadership area
- 15.115.1
- SchwenkachseSwivel axis
- 16.1, 2716.1, 27
- Zylinder-Kolben-EinheitCylinder-piston unit
- 17.117.1
- SchwenklagerSwivel bearing
- 19.1, 19.219.1, 19.2
- ProduktführungProduct management
- 2424th
- DrehklappeRotary flap
- 28, 38, 3928, 38, 39
- GehäuseteilHousing part
- 2929
- SammeltrichterCollection funnel
- 34, 3534, 35
- VentilValve
- 37, 37.137, 37.1
- SchwenklagerSwivel bearing
- 4040
- FührungsrolleLeadership role
- 4343
- AnschrägungBevel
- 4444
- Abdeckteil von 19.2Cover part from 19.2
Claims (7)
- Roller mill, in particular a flake-forming roller mill for granular material, with at least two rollers (2, 3) which are pressed against one another by pressing means, each with a product guide (19.1, 19.2) arranged opposite the front faces of the rollers at the axial ends of the rollers, each with a guide face (12.1, 41) inclined in such a way that product tending outwards along the length of the rollers is brought back into the converging nip of the rollers, wherein the guide face (12.1, 41) is part of a movable rocker arm (11.1, 11.2) in such a way that the guide face (12.1, 41) can be moved from an operating position into an emptying position and back to the operating position, characterised in that the product guide (19.1, 19.2) and the rocker arm (11.1, 11.2) form one unit and are movable as a whole in such a way that the guide face (12.1, 41) can be tilted from the operating position to the emptying position.
- Roller mill according to claim 1, characterised in that the product guide (19.1) and the rocker arm (11.1) are mounted by a pivot bearing (37) on a stationary housing component (38).
- Roller mill according to claim 1, characterised in that the guide face (41) is part of a guide roller (40) which is mounted to rotate on the rocker arm (11.2), which, with the product guide (19.2), is pivotally mounted by a pivot bearing (37.1) in the stationary housing component (38).
- Roller mill according to one of the preceding claims, characterised in that a flap (24) is arranged beneath the product guide (19.2, 19.2) and can be pivoted by means (33 - 35) in such a way that the flap (24) is in an operating position, if the guide face (12.1, 41) is also in the operating position, and can be pivoted to an emptying position, if the guide face (12.1, 41) is also in the emptying position, so as to convey coarse impurities emptied from the guide face from the roller mill using the flap (24).
- Roller mill according to one of the preceding claims, characterised in that the means (16.1, 16.2) are provided for bringing the rocker arm (11.1, 11.2) and the guide face (12.1, 41) respectively into an operating position and an emptying position, in the form of a simply acting cylinder (16, 16.1), whose spring holds the guide face (12.1, 41) in the operating position.
- Roller mill according to claim 5, characterised in that a control unit with a clock generator (not illustrated) is provided for actuating said means (16.1, 16.2) which gives rise to the means of bringing the rocker arm (11.1, 11.2), at predetermined intervals, from the operating to the emptying position.
- Roller mill according to claim 5, characterised in that the guide face (12.1) is provided with a resistance strain gauge (not illustrated), which is linked to the control unit (33) and sends it a signal if foreign bodies of the predetermined minimum weight are located on the guide face, and in that the control unit moves the guide face from the operating position to the emptying position on the basis of such a signal.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH15993 | 1993-01-20 | ||
CH159/93 | 1993-01-20 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0607853A2 EP0607853A2 (en) | 1994-07-27 |
EP0607853A3 EP0607853A3 (en) | 1995-01-11 |
EP0607853B1 true EP0607853B1 (en) | 1999-04-28 |
Family
ID=4180604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94100344A Expired - Lifetime EP0607853B1 (en) | 1993-01-20 | 1994-01-12 | Flaking mill with a product channel on each of the axial ends of the rollers |
Country Status (3)
Country | Link |
---|---|
US (1) | US5386946A (en) |
EP (1) | EP0607853B1 (en) |
DE (1) | DE59408152D1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5823452A (en) * | 1997-05-05 | 1998-10-20 | Ballew; Russell | Flaker mill |
US7473169B2 (en) * | 2007-02-28 | 2009-01-06 | Cnh America Llc | Adjustable axial rotor discharge deflector |
US20100243963A1 (en) * | 2009-03-31 | 2010-09-30 | Integrated Photovoltaics, Incorporated | Doping and milling of granular silicon |
DE102021103573B4 (en) * | 2021-02-16 | 2024-06-13 | Maschinenfabrik Köppern Gmbh & Co. Kg | High pressure roller press |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US315897A (en) * | 1885-04-14 | brewer | ||
DE25350C (en) * | C. SCHLICKEYSEN in Berlin SO., Wassergasse 17 u. 18 | Shutting flap on conical or cylindrical clay and fine rolling mills for removing stones | ||
US1961291A (en) * | 1933-01-20 | 1934-06-05 | Gen Printing Ink Corp | Grinding mill |
US2063363A (en) * | 1933-02-04 | 1936-12-08 | Charles P Brasington | Grinding mill |
US2060868A (en) * | 1935-02-19 | 1936-11-17 | J M Lehmann Company Inc | Side shield raising device for roller mill hoppers |
US2808215A (en) * | 1955-03-03 | 1957-10-01 | Buehler Ag Geb | Sealing shields for roller mills |
DE2900922C2 (en) * | 1979-01-11 | 1983-04-14 | Hermann Bauermeister Maschinenfabrik Gmbh, 2000 Hamburg | Squeeze roller frame, especially for flaking cereal grains and oilseeds |
DE3642974A1 (en) * | 1986-12-17 | 1988-06-30 | Buehler Ag Geb | ROLLING MILL AND METHOD FOR FEEDING GRINNED GOODS |
US4839494A (en) * | 1988-06-03 | 1989-06-13 | Ntronix, Inc. | Electromagnetic container sealing apparatus |
US5054701A (en) * | 1989-06-20 | 1991-10-08 | Fives-Cail Babcock | Milling process and apparatus |
-
1994
- 1994-01-12 EP EP94100344A patent/EP0607853B1/en not_active Expired - Lifetime
- 1994-01-12 DE DE59408152T patent/DE59408152D1/en not_active Expired - Fee Related
- 1994-01-18 US US08/182,821 patent/US5386946A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5386946A (en) | 1995-02-07 |
EP0607853A3 (en) | 1995-01-11 |
EP0607853A2 (en) | 1994-07-27 |
DE59408152D1 (en) | 1999-06-02 |
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