Processing

Please wait...

Settings

Settings

Goto Application

1. EP3503740 - HIGH THERMAL TRANSFER HOLLOW CORE EXTRUSION SCREW ASSEMBLY

Office European Patent Office
Application Number 18753775
Application Date 15.02.2018
Publication Number 3503740
Publication Date 03.07.2019
Publication Kind A4
IPC
A23K 40/25
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
KFEEDING-STUFFS SPECIALLY ADAPTED FOR ANIMALS; METHODS SPECIALLY ADAPTED FOR PRODUCTION THEREOF
40Shaping or working-up of animal feeding-stuffs
25by extrusion
A23N 17/00
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
NMACHINES 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
17Apparatus specially adapted for preparing animal feeding-stuffs
A23P 30/20
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
PSHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
30Shaping or working of foodstuffs characterised by the process or apparatus
20Extruding
B29C 48/84
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
78Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
80at the plasticising zone, e.g. by heating cylinders
84by heating or cooling the feeding screws
CPC
A23N 17/005
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
NMACHINES 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
17Apparatus specially adapted for preparing animal feeding-stuffs
005for shaping by moulding, extrusion, pressing, e.g. pellet-mills
A23P 30/20
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
PSHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
30Shaping or working of foodstuffs characterised by the process or apparatus
20Extruding
B01F 7/00691
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
00658Configuration of the rotating axis
00683Construction of the axis
00691The axis being composed of interconnected parts
B01F 7/082
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
02with stirrers rotating about a horizontal or inclined axis
08with helices ; or sections of helices
081with at least two helices in the same receptacle
082the helices being closely surrounded by a casing
B01F 7/085
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
02with stirrers rotating about a horizontal or inclined axis
08with helices ; or sections of helices
081with at least two helices in the same receptacle
085the helices intermeshing to knead the mixture
B01F 7/088
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
7Mixers with rotary stirring devices in fixed receptacles ; , i.e. movement of the receptacle not being meant to effect the mixing
02with stirrers rotating about a horizontal or inclined axis
08with helices ; or sections of helices
088the stirrers being composed of two helices with opposite pitch on the same shaft; the stirrers being composed of two helices on the same axis, driven in opposite directions or at different speeds
Applicants WENGER MFG
Inventors WENGER LAVON
SPELLMEIER ALLAN C
WILTZ PHILIP B
Designated States
Title
(DE) HOHLKERN-EXTRUSIONSSCHNECKENANORDNUNG MIT HOHER THERMISCHER ÜBERTRAGUNG
(EN) HIGH THERMAL TRANSFER HOLLOW CORE EXTRUSION SCREW ASSEMBLY
(FR) ENSEMBLE DE VIS D'EXTRUSION À CORPS CREUX À TRANSFERT THERMIQUE ÉLEVÉ
Abstract
(EN)
High thermal transfer, hollow core extrusion screws (50, 52, 124, 126, 190) include elongated hollow core shafts (54, 128, 130, 192) equipped with helical flighting (56, 132, 134, 194) along the lengths thereof. The flighting (132, 134, 194) may also be of hollow construction which communicates with the hollow core shafts (54, 128, 130, 192). Structure (88, 90) is provided for delivery of heat exchange media (e.g., steam) into the hollow core shafts (54, 128, 130, 192) and the hollow flighting (132, 134, 194). The flighting (56, 132, 134, 194) also includes a forward, reverse pitch section (64, 162, 216). The extrusion screws (50, 52, 124, 126, 190) are designed to be used as complemental pairs as a part of twin screw processing devices (20), and are designed to impart high levels of thermal energy into materials being processed in the devices (20), without adding additional moisture.

(FR)
La présente invention concerne des vis d’extrusion à corps creux, à transfert thermique élevé (50, 52, 124, 126, 190) comprennent des tiges à corps creux allongées (54, 128, 130, 192) équipés d’un filetage hélicoïdal (56, 132, 134, 194) le long des longueurs de celles-ci. Le filetage (132, 134, 194) peut également être de construction creuse qui communique avec les tiges à corps creux (54, 128, 130, 192). Une structure (88, 90) est disposée pour la distribution milieux d’échange de chaleur (par exemple, de la vapeur) dans les tiges à corps creux (54, 128, 130, 192) et le filetage creux (132, 134, 194). Le filetage (56, 132, 134, 194) comprend en outre une section à pas avant, inverse (64, 162, 216). Les vis d’extrusion (50, 52, 124, 126, 190) sont conçues pour être utilisées sous forme de paires complémentaires en tant que partie de dispositifs de traitement à deux vis (20), et sont conçues pour transférer des niveaux élevés d’énergie thermique dans des matériaux étant traités dans les dispositifs (20), sans ajouter de l’humidité supplémentaire.