DE102009003309A1 - Method for manufacturing aquafeed, particularly feed pellets with adjusted bulk density, involves supplying, mixing, extruding and subsequently processing raw materials into pellets - Google Patents

Method for manufacturing aquafeed, particularly feed pellets with adjusted bulk density, involves supplying, mixing, extruding and subsequently processing raw materials into pellets Download PDF

Info

Publication number
DE102009003309A1
DE102009003309A1 DE102009003309A DE102009003309A DE102009003309A1 DE 102009003309 A1 DE102009003309 A1 DE 102009003309A1 DE 102009003309 A DE102009003309 A DE 102009003309A DE 102009003309 A DE102009003309 A DE 102009003309A DE 102009003309 A1 DE102009003309 A1 DE 102009003309A1
Authority
DE
Germany
Prior art keywords
pellets
aquafeed
bulk density
expansion chamber
raw materials
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.)
Withdrawn
Application number
DE102009003309A
Other languages
German (de)
Inventor
Urs Wüst
Hans Rudolf Losenegger
Walter HABLÜTZEL
Carlo Bogoni
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Buehler AG
Original Assignee
Buehler AG
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 Buehler AG filed Critical Buehler AG
Priority to DE102009003309A priority Critical patent/DE102009003309A1/en
Priority to CH00569/09A priority patent/CH700236A2/en
Priority to PCT/EP2010/050054 priority patent/WO2010076341A1/en
Publication of DE102009003309A1 publication Critical patent/DE102009003309A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • A23K—FODDER
    • A23K40/00—Shaping or working-up of animal feeding-stuffs
    • A23K40/25—Shaping or working-up of animal feeding-stuffs by extrusion
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K50/00—Feeding-stuffs specially adapted for particular animals
    • A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs

Abstract

The method involves supplying, mixing, extruding and subsequently processing raw materials into pellets. The extruded product is expanded in targeted manner in an expansion chamber, and is formed into pellets after passing a separate forming device. An independent claim is also included for a device for manufacturing aquafeed, particularly feed pellets with adjusted bulk density.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Aquafeed, insbesondere von Futterpellets mit eingestellter Schüttdichte, die auch einen hohen Gehalt an Stärke aufweisen. Die Einstellung der Schüttdichte durch Anwendung dieses Verfahrens führt zu Pellets welche in Wasser und/oder Salzwasser verschiedene Sinkgeschwindigkeiten aufweisen.The The invention relates to a process for the preparation of Aquafeed, in particular of feed pellets with adjusted bulk density, which also has a high Content of starch exhibit. The adjustment of the bulk density by application of this Procedure leads to pellets which in water and / or salt water different sinking rates exhibit.

Bekannt sind diverse verdichtete Futterpellets, die durch Extrusion hergestellt werden.Known are various compressed feed pellets made by extrusion become.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zur Herstellung von Aquafeed, insbesondere von Futterpellets mit eingestellter Schüttdichte, die auch einen hohen Gehalt an Stärke aufweisen können zu entwickeln, das es ermöglicht, die Stärke vollständig und nicht-expandierend aufzuschliessen (kochen). Der Fettgehalt soll bzw. kann dabei möglichst gering bleiben, d. h. kleiner 12%. Dies ermöglicht es, Futterpellets mit unterschiedlicher, einstellbarer Dichte herzustellen.Of the The invention is therefore based on the object, a process for the preparation Aquafeed, in particular feed pellets with a set bulk density, which may also have a high content of starch too develop that makes it possible for the Strength Completely and non-expanding (boil). The fat content should or can as possible stay low, d. H. less than 12%. This makes it possible to feed pellets with produce different, adjustable density.

Die Aufgabe ist mit den Merkmalen des Patentanspruchs 1 gelöst.The The object is solved with the features of claim 1.

Erfindungsgemäss werden die Ausgangsstoffe zunächst gemischt, vorkonditioniert, extrudiert und in einem nachfolgenden Schritt in einer, mit der Extrusionseinrichtung verbundenen Kammer geformt resp. „restextrudiert” werden. Dies ergibt gleichmässig dichte Pellets, deren Stärke weitgehend gelatiniert ist.According to the invention the starting materials first mixed, preconditioned, extruded and in a subsequent Step in a chamber connected to the extrusion device shaped resp. Be "extruded". This results uniformly dense pellets, their strength is largely gelatinized.

Bevorzugte Ausführungsformen sind in den abhängigen Ansprüchen offenbart.preferred embodiments are in the dependent claims disclosed.

Das vorextrudierte Produkt gelangt direkt in eine Expansionskammer und von da in eine formgebende Pumpeinheit. Durch Regulierung des Arbeitsdruckes in der Expansionskammer ist es möglich, den Siedepunkt des Wassers in der zu extrudierenden Masse einzustellen und den Wasseraustritt zu steuern. Durch Überdruck oder Unterdruck in der Expansionskammer, der mittels eines Ventils einstellbar ist, kann die Expansion des Produkts gesteuert werden. Dabei kann zum Beispiel zur Verringerung der Produktexpansion in der Expansionskammer der Dampfdruck und (damit in Verbindung stehend) der Siedepunkt des im Produkt enthaltenen Wassers erhöht werden.The Pre-extruded product passes directly into an expansion chamber and from there into a shaping pumping unit. By regulating the working pressure in the expansion chamber it is possible to use the Set the boiling point of the water in the mass to be extruded and to control the water outlet. Due to overpressure or negative pressure in the expansion chamber, which is adjustable by means of a valve, the expansion of the product can be controlled. It can for Example of reducing product expansion in the expansion chamber the vapor pressure and (related) the boiling point of the water contained in the product can be increased.

Das so vorbehandelte Produkt wird nachfolgend in einer Pumpeinheit geformt.The thus pretreated product is subsequently molded in a pumping unit.

Ein weiterer Vorteil des Verfahrens besteht in der erreichbaren hohen Produktivität.One Another advantage of the method is the achievable high Productivity.

Eine weitere Aufgabe besteht darin eine Einrichtung zur Ausführung des Verfahrens zu schaffen. Diese Aufgabe ist mit den Merkmalen des Patentanspruchs 3 gelöst.A Another object is a device for the execution of the To create a procedure. This task is with the characteristics of Patent claim 3 solved.

Die erfindungsgemässe Einrichtung enthält einen Extruder, bevorzugt einen Einwellenextruder, dessen Produktaustrittsöffnung mit einer Expansionskammer verbunden ist. Deren Produktaustrittsöffnung ist wiederum mit einer Formungseinheit, z. B. einer Exzenterschneckenpumpe (Moineaupumpe) oder jegliche andere für diese Zwecke geeignete Pumpe verbunden.The invention Facility contains one Extruder, preferably a single-screw extruder whose product outlet opening with an expansion chamber is connected. Their product outlet is again with a shaping unit, z. B. an eccentric screw pump (Moineaupumpe) or any other suitable for this purpose pump connected.

Die Expansionskammer ist bevorzugt mit einem Druckluftventil und Ventil zur Dampfzu- und abfuhr versehen. Der Dampf, der durch den flash-off der extrudierten und expandierten Produkte in der Expansionskammer entsteht, kann durch das Ventil abgeführt und zu Heizzwecken verwendet werden. In der Expansionskammer kann durch Abfuhr des Dampf/Luftgemisches auch Unterdruck erzeugt werden.The Expansion chamber is preferred with a compressed air valve and valve provided for steam supply and removal. The steam coming through the flash-off of extruded and expanded products in the expansion chamber created, can be discharged through the valve and used for heating purposes become. In the expansion chamber can by removing the steam / air mixture also negative pressure can be generated.

Die Erfindung wird nachfolgend in einem Ausführungsbeispiel anhand einer Zeichnung näher beschrieben. In der Zeichnung zeigen dieThe Invention is described below in an embodiment with reference to a Drawing described in more detail. In the drawing show the

1: eine erfindungsgemässe Einrichtung zur Herstellung von Aquafeed mit hohem Schüttgewicht, 1 a device according to the invention for the production of Aquafeed with high bulk density,

2: eine Glasübergangskurve für Stärke. 2 : a glass transition curve for strength.

Die Ausgangsstoffe, darunter ein ggf. hoch stärkehaltiger Stoff werden in die Arbeitskammer eines Extruders 1 gefüllt und in dieser behandelt und wird über eine Produktaustrittsdüse 2, die mit einem Schneidwerkzeug versehen sein kann, in eine Expansionskammer 8 ausgetragen. Unter Zugabe von Druckluft und Dampf (via Ventile 3 und 5) erfolgt eine kontrollierte Dekompression des Produktes in der Expansionskammer 8. Durch Regulierung des Arbeitsdruckes (max. 6 bar) in der Expansionskammer 8 kann der Siedepunkt des Wassers im Produkt eingestellt werden und damit ein schlagartiges Austreten von Wasser gesteuert resp. verhindert werden.The starting materials, including possibly a high-starch substance are in the working chamber of an extruder 1 filled and treated in this and is via a product outlet nozzle 2 , which may be provided with a cutting tool, in an expansion chamber 8th discharged. With the addition of compressed air and steam (via valves 3 and 5 ) there is a controlled decompression of the product in the expansion chamber 8th , By regulating the working pressure (max 6 bar) in the expansion chamber 8th The boiling point of the water can be adjusted in the product and thus controlled a sudden escape of water resp. be prevented.

Aufgrund des hohen Arbeitsdruckes sowie einer hohen Arbeitstemperatur im Extruder 1 verbleibt das Wasser vor dem Übertritt in die Expansionskammer 8 im flüssigen Zustand. Gegenüber der Normalatmosphäre stellt sich bei erhöhtem Druck ein höherer Siedepunkt des Wassers ein.Due to the high working pressure and a high working temperature in the extruder 1 the water remains in the expansion chamber before crossing 8th in the liquid state. Compared to the normal atmosphere, a higher boiling point of the water arises at elevated pressure.

Ohne erhöhten Druck/Temperatur käme es beim Austritt aus dem Extruder 1 unter Normalatmosphäre in der Expansionskammer 8 zur Abkühlung des Produktes im Ergebnis eines Wasseraustrags. Ein solches Produkt wäre nicht weiter formbar, da es bereits im Glaszustand ist (siehe 2).Without increased pressure / temperature it would come out of the extruder 1 under normal atmosphere in the expansion chamber 8th for cooling the product as a result of a water discharge. Such a product would not be malleable, since it is already in the glass state (see 2 ).

Deshalb müssen Temperatur und Dampfdruck so eingestellt sein, dass das Produkt in einem gummiartigen Zustand zwischen der Glasübergangstemperatur Tg und Schmelztemperatur Tm verbleibt. In diesem Zustand verbleibt das Produkt viskoelastisch in der Expansionskammer 8 und ist weder zu kalt noch zu trocken für eine nachfolgende Formung in der Exzenterschneckenpumpe 10.Therefore, the temperature and vapor pressure must be set so that the product remains in a rubbery state between the glass transition temperature Tg and the melting temperature Tm. In this state, the product remains viscoelastic in the expansion chamber 8th and is neither too cold nor too dry for subsequent shaping in the progressive cavity pump 10 ,

Die Expansionskammer 8 ist via Produktaustrittsdüse 2 resp. Produktaustrittsöffnung 9 druckfest vom Extruder 1 resp. der Exzenterschneckenpumpe 10 getrennt.The expansion chamber 8th is via product outlet nozzle 2 respectively. Product outlet opening 9 pressure-resistant from the extruder 1 respectively. the eccentric screw pump 10 separated.

In Verbindung mit der Formung des Produkts in der nachfolgenden Exzenterschneckenpumpe 10 kann die Produktdichte und damit dessen Sinkfähigkeit geregelt werden.In connection with the shaping of the product in the following eccentric screw pump 10 the product density and thus its sinkability can be regulated.

Auf das Formwerkzeug 11 und die Schneideinheit 12 kann ein Probensammler folgen um eine kontinuierliche Produktkontrolle zu gewährleisten.On the mold 11 and the cutting unit 12 may be followed by a sample collector to ensure continuous product control.

11
Extruderextruder
22
ProduktaustrittsdüseProduktaustrittsdüse
33
DruckluftventilAir Valve
44
Sicherheitsventilsafety valve
55
Dampfventilsteam valve
66
Sichtfensterwindow
77
Flussmesserflowmeter
88th
Expansionskammerexpansion chamber
99
ProduktaustrittsöffnungProduct outlet opening
1010
ExzenterschneckenpumpeCavity Pump
1111
Formwerkzeugmold
1212
Schneideinheitcutting unit
1313
T-PumpeT-pump
TgTg
GlasübergangstemperaturGlass transition temperature
Tmtm
Schmelztemperaturmelting temperature

Claims (3)

Verfahren zur Herstellung von Aquafeed, insbesondere von Futterpellets mit eingestellter Schüttdichte, die einen hohen Gehalt an Stärke aufweisen, wobei Rohstoffe zunächst zugeführt, gemischt und extrudiert werden und anschliessend zu Pellets verarbeitet werden, dadurch gekennzeichnet, dass extrudiertes Produkt in einer Expansionskammer gezielt expandiert und erst nach passieren einer separaten Formungseinrichtung in Pellets geformt wird.Process for the preparation of Aquafeed, in particular of feed pellets with adjusted bulk density, which have a high content of starch, wherein raw materials are first fed, mixed and extruded and then processed into pellets, characterized in that the extruded product expands selectively in an expansion chamber and only after passing through a separate shaping device is formed into pellets. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Kochpunkt des Wassers in dem extrudierten Produkt eingestellt wird und dessen Wasseraustritt gesteuert wird.Method according to claim 1, characterized in that that the boiling point of the water is adjusted in the extruded product and whose water outlet is controlled. Einrichtung zur Herstellung von Aquafeed, insbesondere von sinkfähigen Futterpellets, insbesondere zur Ausführung eines Verfahrens nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, dass Einrichtung enthält einen Extruder (1), bevorzugt einen Einwellenextruder, dessen Produktaustrittsdüse (2) mit einer Expansionskammer (8) verbunden ist, wobei deren Produktaustrittsöffnung (9) wiederum mit einer Formungseinheit, insbesondere einer Exzenterschneckenpumpe (10) verbunden ist.Device for producing aquafeed, in particular sinkable feed pellets, in particular for carrying out a method according to claims 1 or 2, characterized in that the device contains an extruder ( 1 ), preferably a single-screw extruder whose product outlet nozzle ( 2 ) with an expansion chamber ( 8th ), wherein the product outlet opening ( 9 ) in turn with a shaping unit, in particular an eccentric screw pump ( 10 ) connected is.
DE102009003309A 2009-01-05 2009-01-05 Method for manufacturing aquafeed, particularly feed pellets with adjusted bulk density, involves supplying, mixing, extruding and subsequently processing raw materials into pellets Withdrawn DE102009003309A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE102009003309A DE102009003309A1 (en) 2009-01-05 2009-01-05 Method for manufacturing aquafeed, particularly feed pellets with adjusted bulk density, involves supplying, mixing, extruding and subsequently processing raw materials into pellets
CH00569/09A CH700236A2 (en) 2009-01-05 2009-04-08 A process for the production of Aqua feed.
PCT/EP2010/050054 WO2010076341A1 (en) 2009-01-05 2010-01-05 Method for producing aquafeed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009003309A DE102009003309A1 (en) 2009-01-05 2009-01-05 Method for manufacturing aquafeed, particularly feed pellets with adjusted bulk density, involves supplying, mixing, extruding and subsequently processing raw materials into pellets

Publications (1)

Publication Number Publication Date
DE102009003309A1 true DE102009003309A1 (en) 2010-07-08

Family

ID=42234677

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102009003309A Withdrawn DE102009003309A1 (en) 2009-01-05 2009-01-05 Method for manufacturing aquafeed, particularly feed pellets with adjusted bulk density, involves supplying, mixing, extruding and subsequently processing raw materials into pellets

Country Status (2)

Country Link
CH (1) CH700236A2 (en)
DE (1) DE102009003309A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2297936A (en) * 1995-02-15 1996-08-21 Apv Corp Ltd Extrusion and expansion of cereal products
DE69912780T2 (en) * 1998-05-29 2004-09-30 Sprout-Matador A/S METHOD AND DEVICE FOR EXTRUDING EXPANDING WATER-BASED PRODUCTS, SUCH AS FOOD PARTICLES OR FEED PELLETS
DE60110217T2 (en) * 2000-03-24 2006-03-30 Sprout-Matador A/S DEVICE FOR EXTRUDING WATER CONTAINING PRODUCTS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2297936A (en) * 1995-02-15 1996-08-21 Apv Corp Ltd Extrusion and expansion of cereal products
DE69912780T2 (en) * 1998-05-29 2004-09-30 Sprout-Matador A/S METHOD AND DEVICE FOR EXTRUDING EXPANDING WATER-BASED PRODUCTS, SUCH AS FOOD PARTICLES OR FEED PELLETS
DE60110217T2 (en) * 2000-03-24 2006-03-30 Sprout-Matador A/S DEVICE FOR EXTRUDING WATER CONTAINING PRODUCTS

Also Published As

Publication number Publication date
CH700236A2 (en) 2010-07-15

Similar Documents

Publication Publication Date Title
DE872866C (en) Method and device for deforming organic, plastic plastics by pressing a strand out of a nozzle
DE60008828T2 (en) Extrusion device for rubber and process for extruding unvulcanized rubber
EP3178628B1 (en) Method and device for manufacturing a modified rubber mixture
AT519150B1 (en) Auger for injection molding and injection molding plant
DE1209282B (en) Method and device for the production of pipes with widenings and / or thickenings
DE102011056194A1 (en) A method for producing a plastic hollow profile with at least one hollow chamber provided with a foam body and an extrusion tool therefor
DE4411164C1 (en) Extruder for recycling plastic foam crumb, pref. polystyrene
DE102019219372A1 (en) Method for devulcanizing a vulcanized rubber mixture, device for carrying out the method and the use of the device for devulcanizing a vulcanized rubber mixture
EP4349565A1 (en) Installation for producing an extruded silicone semi-finished product, use of a co-rotating twin screw extruder and method for producing a silicone raw extrudate
DE102009003309A1 (en) Method for manufacturing aquafeed, particularly feed pellets with adjusted bulk density, involves supplying, mixing, extruding and subsequently processing raw materials into pellets
DE1170614B (en) Process for the production of molded parts with a cellular structure made of plastic based on polyvinyl chloride
EP0209818B1 (en) Process for making confectionery gum
WO2010076341A1 (en) Method for producing aquafeed
DE102018213484B4 (en) Injection device for foam molding and molding method for foamed molded article
DE2621465A1 (en) EXTRUSION PROCESS FOR THE MANUFACTURING OF RESIN BODIES WITH DIFFERENT THICKNESSES
CH642906A5 (en) METHOD AND DEVICE FOR PRODUCING MOLDED BODIES FROM HIGH-MOLECULAR LOW-PRESSURE POLYAETHYLENE, AND A RAMEXTRUDER FOR IMPLEMENTING THE METHOD.
DE10147070A1 (en) Foamed plastic product manufacture involves use of both physical and chemical blowing agents
DE19913514C1 (en) Energy-effective screw extrusion process manufacturing pelletized fodder, preconditions with steam, shears, compresses, expands and recompresses before extrusion-pelletization
EP3659773A1 (en) Method and device for preparing a styrene acrylonitrile melt
DE102019207732A1 (en) Process for producing an extruded, sulfur-crosslinkable rubber mixture and device for carrying out the process and the use thereof
EP3744500A1 (en) Apparatus for extruding sulfur-crosslinkable rubber mixtures, use of the device and a method for producing an extruded sulfur-crosslinkable rubber composition
DE487896C (en) Device for forming rings and similar objects from plastic material
EP0909535B1 (en) Fabrication process for shaped chocolate articles
EP1172195B1 (en) Method of producing granules and extruder
DE102020209087A1 (en) Method of making an extrudate for making a body tire component, use of a shaped extrudate made or producible by the method and use of an apparatus for carrying out the method

Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee

Effective date: 20110802