WO1997041743A1 - Expansion device for animal feed or foodstuffs - Google Patents

Expansion device for animal feed or foodstuffs Download PDF

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Publication number
WO1997041743A1
WO1997041743A1 PCT/EP1997/002171 EP9702171W WO9741743A1 WO 1997041743 A1 WO1997041743 A1 WO 1997041743A1 EP 9702171 W EP9702171 W EP 9702171W WO 9741743 A1 WO9741743 A1 WO 9741743A1
Authority
WO
WIPO (PCT)
Prior art keywords
expansion device
die
housing
area
slot
Prior art date
Application number
PCT/EP1997/002171
Other languages
German (de)
French (fr)
Inventor
Claus-Hinrich Heesch
Hans Walter Lucht
Dirk Petersen
Original Assignee
Amandus Kahl Gmbh & Co.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Amandus Kahl Gmbh & Co. filed Critical Amandus Kahl Gmbh & Co.
Publication of WO1997041743A1 publication Critical patent/WO1997041743A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/227—Means for dividing the extruded material into briquets
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K40/00—Shaping or working-up of animal feeding-stuffs
    • A23K40/20—Shaping or working-up of animal feeding-stuffs by moulding, e.g. making cakes or briquettes
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
    • A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
    • A23N17/005—Apparatus specially adapted for preparing animal feeding-stuffs for shaping by moulding, extrusion, pressing, e.g. pellet-mills
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
    • A23P30/00—Shaping or working of foodstuffs characterised by the process or apparatus
    • A23P30/30—Puffing or expanding
    • A23P30/32—Puffing or expanding by pressure release, e.g. explosion puffing; by vacuum treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/221—Extrusion presses; Dies therefor extrusion dies

Definitions

  • Expansion device for animal feed or food
  • the invention relates to an expansion device for the preparation of animal feed or foodstuffs discharged in the form of cubes, pellets or in an irregular form, comprising an essentially cylindrical housing with material feed zone, pressure build-up and relaxation zone and material take-off area.
  • the present invention addresses the problem, particularly these start-up current peaks or the only to avoid briefly required higher starting energy or to reduce it to a tolerable level.
  • a device of the type mentioned at the outset which is characterized in that the housing tapers towards an outlet slot in the material removal area and part of the wall of this tapered area is designed to be adjustable such that the outlet slot can be changed in its outlet area.
  • the principle of the present invention is based on the fact that the outlet cross-section for the material can be enlarged with relatively simple means so that the required drive energy can be reduced to a tolerable level.
  • This "opening" material emerges from the expansion device that does not have the desired shape, but this can be brought into the desired shape at a later time by reinserting it into the material feeder.
  • the mechanical stress on the expansion device is significantly reduced due to the larger opening cross-section at the exit point.
  • the adjustability of one of the two parts which form the outlet slot allows the cross-sectional area to be enlarged or also reduced in the desired manner.
  • a die or die holder for a die is located in the region of the outlet slot. These parts are somewhat clamped between the two housing parts forming the outlet slot and, even if the opening cross section is widened, The die or die holder remains in the intended position, however, in addition to the material that comes out through the die opening, another material flow emerges from the housing of the expander, which leads to the desired reduction in the stress on the expander or the reduction in drive energy leads.
  • the die or die holder can be adjustably or displaceably attached to the housing, so that a simple exchange of the die is required in this way.
  • both plates of the material removal area of the housing are designed to be pivotable about horizontal axes, so that a relatively large opening of the outlet is possible in this way.
  • Fig. 1 shows in vertical sectional view the essential parts of the device according to the invention.
  • FIG. 2 is a representation corresponding to FIG. 1 with a differently designed die part.
  • FIG. 3 is a representation corresponding to FIG. 1 using a die holder with a die.
  • FIGS. 1 to 3 the essentially cylindrical housing of an expansion device can be thought of on the left-hand side.
  • a plate 10 which runs obliquely upwards from below.
  • This plate 10 forms, together with another plate 11, a kind of grommet, so that an exit slot forms in the free area of the two parts 10 and 11.
  • the plate 11 is, as shown schematically at 12, pivotable about a horizontal axis, so that it can be seen that the slot has a variable size.
  • FIG. 13 shows a knife cutting device which can act on the material emerging from the slot.
  • Fig. 1 denotes a die, which between the. both parts 10 and 11 is attached.
  • the device according to the invention can also work without such a die 20.
  • the material that emerges from the opening of the die 20 reaches the working area of the knife cutting device 13 after a short distance.
  • the die is designed so that the material can interact with the knife cutting device immediately after exiting the opening.
  • FIG. 3 shows a modified embodiment of the invention in that a die holder with a die 22 is shown there.
  • FIG. 1 In the lower area of the die holder or die (FIG. 1) it can be seen that these parts are fastened to the lower housing wall 10 in such a way that the die or die holder even then in its intended position due to the exiting material flow from the expander remains when the upper plate 11 or the upper housing part 11 has been pivoted upwards.

Abstract

The invention relates to an expansion device for preparing animal feed or foodstuffs in the form of cubes, pellets or irregular shapes. It comprises an essentially cylindrical housing with a material intake region, a pressurising and depressurising region and a material extraction region. In the material extraction region (10, 11) the housing narrows to an exit slot and a part (11) of the wall of this tapering region is adjustable in such a way that the exit area of said slot is adjustable.

Description

Expansionsvorrichtung für Tierfuttβr oder Nahrungsmittel Expansion device for animal feed or food
Die Erfindung bezieht sich auf eine Expansionsvorrichtung für die Aufbereitung von in Gestalt von Würfeln, Pellets oder in unregelmäßiger Form ausgetragenem Tierfutter oder Nahrungsmittel, umfassend ein im wesentlichen zylindrisches Gehäuse mit Materialeinzugszone, Druckaufbau- und Entspan¬ nungszone sowie Materialabzugsbereich.The invention relates to an expansion device for the preparation of animal feed or foodstuffs discharged in the form of cubes, pellets or in an irregular form, comprising an essentially cylindrical housing with material feed zone, pressure build-up and relaxation zone and material take-off area.
Bei bekannten Expansionsvorrichtungen befindet sich im Materialabzugsbereich eine Matritze mit einer vorgegebenen, aber festen Öffnung für den Materialaustritt. Im üblichen kontinuierlichen Betrieb können die Antriebsleistung für die Expansionsschmecke und auch die austretende Materialmenge konstant gehalten werden, so daß ein gleichmäßiger Betrieb sichergestellt ist. Beim Anfahren allerdings sind die einzelnen Betriebsparameter noch nicht auf den gewünschten Wert eingestellt, so daß insbesondere in dem ersten Teil des Anfahrbereiches mit erheblichen Antriebsstromspitzen gerechnet werden muß. Erst nach einer gewissen Zeit und einem gewissen Materialaustritt geht die erforderliche Antriebsenergie auf den vorgesehenen Wert zurück.In known expansion devices, there is a die in the material withdrawal area with a predetermined but fixed opening for the material outlet. In conventional continuous operation, the drive power for the expansion taste and also the amount of material escaping can be kept constant, so that uniform operation is ensured. When starting, however, the individual operating parameters have not yet been set to the desired value, so that considerable drive current peaks must be expected, particularly in the first part of the starting range. Only after a certain period of time and a certain amount of material leakage does the required drive energy return to the intended value.
Die vorliegende Erfindung befaßt sich mit dem Problem, insbesondere diese Anfahrtsstromspitzen bzw. die nur kurzzeitig benötigte höhere Anfahrenergie zu vermeiden bzw. auf ein erträgliches Maß herabzusetzen.The present invention addresses the problem, particularly these start-up current peaks or the only to avoid briefly required higher starting energy or to reduce it to a tolerable level.
Erreicht wird dies durch eine Vorrichtung der eingangs genannten Art, die dadurch gekennzeichnet ist, daß das Gehäuse in dem Materialabzugsbereich sich zu einem Austrittsschlitz hin verjüngt und ein Teil der Wandung dieses Verjüngungsbereiches so verstellbar ausgebildet ist, daß der Austrittsschlitz in seiner Austrittsfläche veränderbar ist.This is achieved by a device of the type mentioned at the outset, which is characterized in that the housing tapers towards an outlet slot in the material removal area and part of the wall of this tapered area is designed to be adjustable such that the outlet slot can be changed in its outlet area.
Das Prinzip der vorliegenden Erfindung beruht darauf, daß mit relativ einfachen Mitteln der Austrittsquerschnitt für das Material so vergrößert werden kann, daß die erforderliche Antriebsenergie auf ein erträgliches Maß herabgesetzt werden kann. Durch dieses "Aufmachen" tritt zwar Material aus der Expansionsvorrichtung aus, das nicht die gewünschte Form hat, dieses kann jedoch durch erneutes Einführen in den Materialeinzug zu einem späteren Zeitpunkt in die gewünschte Form gebracht werden. Auf jeden Fall wird die mechanische Beanspruchung der Expansionsvorrichtung aufgrund des größeren Öffnungsquerschnitts an der Austrittsstelle deutlich herabgesetzt.The principle of the present invention is based on the fact that the outlet cross-section for the material can be enlarged with relatively simple means so that the required drive energy can be reduced to a tolerable level. Through this "opening" material emerges from the expansion device that does not have the desired shape, but this can be brought into the desired shape at a later time by reinserting it into the material feeder. In any case, the mechanical stress on the expansion device is significantly reduced due to the larger opening cross-section at the exit point.
Bei dem gemäß der Erfindung vorgesehenen Schlitz kann durch die Verstellbarkeit einer der beiden Teile, die den Ausstrittsschlitz bilden, die Querschnittsfläche vergrößert oder auch in gewünschter Weise verkleinert werden.In the slot provided according to the invention, the adjustability of one of the two parts which form the outlet slot allows the cross-sectional area to be enlarged or also reduced in the desired manner.
Nach einer bevorzugten Ausführungsform der vorliegenden Erfindung befindet sich im Bereich des Austrittsschlitzes eine Matritze oder Matritzenhalter für eine Matritze. Diese Teile werden in gewisser Weise zwischen den beiden den Austrittsschlitz bildenden Gehäuseteilen eingeklemmt und, selbst wenn der Öffnungsquerschnitt erweitert wird, verbleibt die Matritze oder der Matritzenhalter an der vorgesehenen Stelle, allerdings tritt neben dem Material, welches durch die Matritzenöffnung nach außen gelangt, ein weitere Materialstrom aus dem Gehäuse des Expanders aus, was zu der gewünschten Herabsetzung der Beanspruchung des Expanders bzw. der Herabsetzung der Antriebsenergie führt.According to a preferred embodiment of the present invention, a die or die holder for a die is located in the region of the outlet slot. These parts are somewhat clamped between the two housing parts forming the outlet slot and, even if the opening cross section is widened, The die or die holder remains in the intended position, however, in addition to the material that comes out through the die opening, another material flow emerges from the housing of the expander, which leads to the desired reduction in the stress on the expander or the reduction in drive energy leads.
Nach einer bevorzugten Ausführungsform kann die Matritze oder der Matritzenhalter am Gehäuse verstellbar oder verschiebbar angebracht sein, so daß auf diese Art und Weise ein einfacher Austausch der Matritzen erforderlich ist.According to a preferred embodiment, the die or die holder can be adjustably or displaceably attached to the housing, so that a simple exchange of the die is required in this way.
Gemäß der Erfindung ist es auch möglich, daß beide Platten des Materialabzugsbereichs des Gehäuses um horizontale Achsen verschwenkbar ausgebildet sind, so daß auf diese Art und -Weise eine relativ große Öffnung des Austritts möglich ist.According to the invention, it is also possible that both plates of the material removal area of the housing are designed to be pivotable about horizontal axes, so that a relatively large opening of the outlet is possible in this way.
Es liegt auch im Rahmen der vorliegenden Erfindung, an dem Gehäuse des Expanders zwei Austrittsköpfe zu befestigen, die jeweils um horizontale Achsen (oben und unten) am Gehäuse verschwenkbar angeordnet sind. Auf diese Art und Weise kann ein leichter Übergang von dem Arbeiten mit dem einen Kopf zu einem anderen Kopf dadurch bewerkstelligt werden, daß der eine Kopf aus der Arbeitsstellung heraus und der andere in die Arbeitsstellung hinein verschwenkt wird.It is also within the scope of the present invention to fasten two outlet heads to the housing of the expander, which are each pivotably arranged on the housing about horizontal axes (top and bottom). In this way, an easy transition from working with one head to another head can be achieved by pivoting one head out of the working position and the other into the working position.
Die Erfindung wird nachstehend anhand der Zeichnungen beispielsweise erläutert.The invention is explained below with reference to the drawings, for example.
Fig.- 1 zeigt in vertikaler Schnittansicht die wesentlichen Teile der Vorrichtung gemäß der Erfindung.Fig. 1 shows in vertical sectional view the essential parts of the device according to the invention.
Fig. 2 ist eine zur Fig. 1 entsprechende Darstellung mit einem anders ausgestalteten Matritzenteil. Fig. 3 ist eine zur Fig. 1 entsprechende Darstellung unter Verwendung eines Matritzenhalters mit Matritze.FIG. 2 is a representation corresponding to FIG. 1 with a differently designed die part. FIG. 3 is a representation corresponding to FIG. 1 using a die holder with a die.
In den Figuren 1 bis 3 ist linksseitig das im wesentlichen zylindrische Gehäuse einer Expansionsvorrichtung zu denken. Am Ausgangsbereich dieses Gehäuses befindet sich eine von unten her schräg nach oben verlaufende Platte 10. Diese Platte 10 bildet mit einer anderen Platte 11 zusammen eine Art Tülle, so daß sich im freien Bereich der beiden Teile 10 und 11 ein Austrittsschlitz bildet. Die Platte 11 ist, wie bei 12 schematisch gezeigt, um eine horizontale Achse verschwenkbar, so daß ersichtlich ist, daß der Schlitz eine veränderbare Größe hat.In FIGS. 1 to 3, the essentially cylindrical housing of an expansion device can be thought of on the left-hand side. At the exit area of this housing there is a plate 10 which runs obliquely upwards from below. This plate 10 forms, together with another plate 11, a kind of grommet, so that an exit slot forms in the free area of the two parts 10 and 11. The plate 11 is, as shown schematically at 12, pivotable about a horizontal axis, so that it can be seen that the slot has a variable size.
Mit 13 ist eine Messerschneideinrichtung gezeigt, die auf das aus dem Schlitz austretende Material einwirken kann.13 shows a knife cutting device which can act on the material emerging from the slot.
In Fig. 1 ist mit 20 eine Matritze bezeichnet, die zwischen den . beiden Teilen 10 und 11 befestigt ist. Selbstverständlich kann die Vorrichtung gemäß der Erfindung auch ohne eine solche Matritze 20 arbeiten. Das Material, das aus der Öffnung der Matritze 20 austritt, gelangt nach einer kurzen Wegstrecke in den Arbeitsbereich der Messerschneideinrichtung 13.In Fig. 1, 20 denotes a die, which between the. both parts 10 and 11 is attached. Of course, the device according to the invention can also work without such a die 20. The material that emerges from the opening of the die 20 reaches the working area of the knife cutting device 13 after a short distance.
In Fig. 2 ist der Matritze so ausgebildet, daß das Material unmittelbar nach Austritt aus der Öffnung mit der Messerschneideinrichtung zusammenwirken kann.In Fig. 2, the die is designed so that the material can interact with the knife cutting device immediately after exiting the opening.
Fig. 3 zeigt eine abgewandelte Ausführungsform der Erfindung, indem dort ein Matritzenhalter mit einer Matritze 22 gezeigt ist. Im unteren Bereich des Matritzenhalters bzw. der Matritze (Fig. 1) ist zu erkennen, daß diese Teile an der unteren Gehäusewandung 10 so befestigt sind, daß durch den austretenden Materialstrom vom Expander her die Matritze bzw. der Matritzenhalter selbst dann in seiner vorgesehenen Lage verbleibt, wenn die obere Platte 11 bzw. der obere Gehäuseteil 11 nach oben hin verschwenkt worden ist. FIG. 3 shows a modified embodiment of the invention in that a die holder with a die 22 is shown there. In the lower area of the die holder or die (FIG. 1) it can be seen that these parts are fastened to the lower housing wall 10 in such a way that the die or die holder even then in its intended position due to the exiting material flow from the expander remains when the upper plate 11 or the upper housing part 11 has been pivoted upwards.

Claims

Patentansprüche claims
1. Expansionsvorrichtung für die Aufbereitung von in Gestalt von Würfeln, Pellets oder in unregelmäßiger Form ausgetragenem Tierfutter oder Nahrungsmittel, umfassend ein im wesentlichen zylindrisches Gehäuse mit Materialeinzugszone, Druckaufbau- und Entspannungszone sowie Materialabzugsbereich, dadurch gekennzeichnet, daß das Gehäuse in dem Materialabzugsbereich (10, 11) sich zu einem Austrittsschlitz hin verjüngt und ein Teil (11) der Wandung dieses Verjüngungsbereiches so verstellbar ausgebildet ist, daß der Austrittsschlitz in seiner Austrittsfläche veränderbar ist.1. Expansion device for the preparation of animal feed or foodstuffs discharged in the form of cubes, pellets or in an irregular form, comprising an essentially cylindrical housing with material intake zone, pressure build-up and relaxation zone and material removal area, characterized in that the housing in the material removal area (10, 11) tapers towards an exit slot and part (11) of the wall of this tapering area is designed to be adjustable so that the exit surface of the exit slot can be changed.
2. Expansionsvorrichtung nach Anspruch 1, dadurch •gekennzeichnet, daß der Verjüngungsbereich (10, 11) des Gehäuses im wesentlichen die Form einer Tülle hat und aus zwei zueinander schräg verlaufenden ebenen Platten gebildet ist.2. Expansion device according to claim 1, characterized • in that the tapered region (10, 11) of the housing substantially has the shape of a spout and is formed of two mutually inclined planar plates.
3. Expansionsvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die untere Platte (10) fest und die obere Platte (11) um eine horizontale Achse (12) verschwenkbar ist.3. Expansion device according to claim 2, characterized in that the lower plate (10) fixed and the upper plate (11) about a horizontal axis (12) is pivotable.
4. -Expansionsvorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß an der festen Platte (10) im Schlitzbereich mindestens eine Matritze (20) oder ein Matritzenhalter (21) auswechselbar befestigt ist. 4. Expansion device according to claim 2 or 3, characterized in that at least one die (20) or a die holder (21) is exchangeably attached to the fixed plate (10) in the slot area.
PCT/EP1997/002171 1996-05-04 1997-04-26 Expansion device for animal feed or foodstuffs WO1997041743A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19617892A DE19617892A1 (en) 1996-05-04 1996-05-04 Expansion device for animal feed or food
DE19617892.4 1996-05-04

Publications (1)

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WO1997041743A1 true WO1997041743A1 (en) 1997-11-13

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WO (1) WO1997041743A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529229C1 (en) * 1985-08-14 1986-05-15 Heinz 2050 Hamburg Schumacher Process and apparatus for the thermal conditioning of oil seeds and oil fruits, in particular legume seeds
US5211965A (en) * 1992-02-25 1993-05-18 Kabushiki Kaisha Takashin Apparatus for making noodle base
EP0664961A1 (en) * 1994-01-28 1995-08-02 Ewos Aktiebolag Process for the preparation of fish feed pellets, a fish pellet, and an apparatus for extruding fish feed

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529229C1 (en) * 1985-08-14 1986-05-15 Heinz 2050 Hamburg Schumacher Process and apparatus for the thermal conditioning of oil seeds and oil fruits, in particular legume seeds
US5211965A (en) * 1992-02-25 1993-05-18 Kabushiki Kaisha Takashin Apparatus for making noodle base
EP0664961A1 (en) * 1994-01-28 1995-08-02 Ewos Aktiebolag Process for the preparation of fish feed pellets, a fish pellet, and an apparatus for extruding fish feed

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Publication number Publication date
DE19617892A1 (en) 1997-11-06

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