EP0550449B1 - Dispositif de production de granules ou de pastilles a partir d'un materiau coulant - Google Patents

Dispositif de production de granules ou de pastilles a partir d'un materiau coulant Download PDF

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Publication number
EP0550449B1
EP0550449B1 EP91914061A EP91914061A EP0550449B1 EP 0550449 B1 EP0550449 B1 EP 0550449B1 EP 91914061 A EP91914061 A EP 91914061A EP 91914061 A EP91914061 A EP 91914061A EP 0550449 B1 EP0550449 B1 EP 0550449B1
Authority
EP
European Patent Office
Prior art keywords
hollow roll
roller
annular ribs
profiled
cross
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
Application number
EP91914061A
Other languages
German (de)
English (en)
Other versions
EP0550449A1 (fr
Inventor
Herbert Kaiser
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.)
Gebr Kaiser Maschinenfabrik
Original Assignee
Gebr Kaiser Maschinenfabrik
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 Gebr Kaiser Maschinenfabrik filed Critical Gebr Kaiser Maschinenfabrik
Publication of EP0550449A1 publication Critical patent/EP0550449A1/fr
Application granted granted Critical
Publication of EP0550449B1 publication Critical patent/EP0550449B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B30B11/20—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
    • B30B11/201—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring for extruding material
    • B30B11/202—Ring constructions
    • 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
    • B30B11/20—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
    • B30B11/201—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring for extruding material

Definitions

  • the invention relates to a device for producing granules or lozenges from flowable material with a circumferential, provided with press recesses in the form of circumferential grooves on the inside of the hollow roller (12) and radially outwardly adjoining squeeze holes and with a drain on the inside Press roll which engages with press tools in the form of profiled ring ribs in the press recesses and presses the material supplied to the press nip through the press-out holes, the pressed-out material being deposited in the form of granules or lozenges on a cooling surface underneath.
  • a device of this type is known from CH-A-444 460, which is used for processing powdered or pasty material.
  • this device is not suitable for processing thin-flowing materials, since a uniform drive of the hollow roller and the press roller can only be ensured if sufficient frictional contact between the ring ribs and the profile grooves can be maintained. This is not the case, for example, with waxy materials.
  • the pressing tools are designed as an axially extending external toothing
  • the press recesses are formed by a likewise axially extending internal toothing of the hollow roller, into which the external toothing of the pressing roller engages, so that a pressing tool in the form of a tooth interacts with a pressing recess and a pressing hole.
  • the present invention has for its object to design a device of the type mentioned with regard to the interaction of the hollow roller and press roller so that a further variety of materials, in particular low to medium viscosity substances, can also be reliably pastilled into small to medium-sized pastilles.
  • FR-PS 1 459 319 it is known for processing powdery masses into granules to provide at least two rollers with interlocking circumferential profile grooves and ring ribs, the interacting rollers with their axes being arranged in a common horizontal plane and the press nip extends between these rollers in the vertical direction.
  • the powdery material is partially brought to a plastic consistency by moistening before it passes through the rollers.
  • the use of such a device for processing flowable material is not possible, since in this case the material would flow through the press nips formed between the two rollers and no individual granules could be produced, but rather the material in the form of strands on a possibly provided Cooling belt would be put down.
  • the device according to the invention has a hollow roller 10, which has internally circumferential, axially spaced profile grooves 12 as press recesses. At the bottom of the profile grooves 12 open out through holes 14 through the shell of the roller, through which the melt is expressed.
  • a press roll 16 runs, which is provided with circumferential ring ribs 18 as a pressing tool, and these ring ribs 18, which are adapted to the profile grooves 12 in cross section, engage in the profile grooves and press the material through the press-out holes 14.
  • the press roll 16 is suspended via a link 20 from a product feed pipe 22 which concentrically penetrates the hollow roll.
  • the material exits through slots 24 of the heated product feed pipe 22 and from there reaches the press nip between the hollow roll and the press roll.
  • a spur gear 28 is placed on its shaft 26, which meshes with an internal ring gear 29 of the hollow roller.
  • the press roller 16 is height adjustable via an eccentric arrangement in order to be able to change the depth of engagement between the ring ribs and profile grooves.
  • a part of the circumference of the hollow roller is surrounded by a heating jacket 30, which is designed at the same time as a suction shaft 32 for the developing gases.
  • This arrangement can be designed according to DE-OS 40 13 405.
  • a container product guide 34 is arranged over an angular section of the hollow roller which is free of heating jacket 30, and this has the task of wiping off the excess product and finally feeding it back in via holes in the hollow roller.
  • the resulting gap 36 is of great importance for the formation, and this is determined depending on the viscosity of the products to be processed.
  • the granules or pastilles 38 which are expressed through the squeezing holes 14 and thus produced, are moved on a moving and arranged under the hollow roller.
  • cooled surface 40 stored which can be designed as a cooling belt or as a cooling roller.
  • the annular rib 181 has the cross section of an isosceles triangle.
  • the ring rib 182 has the shape of an equilateral trapezoid.
  • the annular rib 183 has converging side surfaces which are bridged by an arc.
  • the cross section of the ring rib 184 has the shape of an equilateral triangle, the base being offset inwards, so that cylindrical ring surfaces are formed on the roller between adjacent ribs 184.
  • Such cylindrical ring surfaces between adjacent ribs are also formed in the ring ribs 185, the profile of which is rectangular.
  • the cross section of the profile grooves 12 corresponds in each case to the cross section of the annular ribs which cooperate with it. In certain circumstances, however, it can also prove expedient to have differently profiled profile grooves and annular ribs interact.
  • the device according to the invention is particularly suitable for processing low to medium-viscosity substances, small to medium-sized lozenges being produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Medicinal Preparation (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Claims (11)

  1. Dispositif de production de granules ou de pastilles à partir d'un matériau coulant, comprenant un cylindre creux rotatif (10) présentant des évidements de compression (12) qui revêtent la forme de gorges profilées (12) s'étendant périphériquement sur la face interne dudit cylindre creux (10), et des trous d'expulsion (14) attenants vers l'extérieur dans le sens radial ; et un cylindre de compression (16) qui roule à la face interne du cylindre précité, pénètre dans les évidements de compression (12) par des outils de compression (18) revêtant la forme de nervures annulaires profilées (18) et exprime, à travers les trous d'expulsion (14), le matériau délivré à l'interstice de compression, le matériau exprimé étant déposé, sous la forme de granules ou de pastilles, sur une surface de refroidissement (40) sous-jacente,
    caractérisé par le fait qu'un pignon droit (28), calé sur l'arbre (26) du cylindre de compression (16), engrène dans une couronne dentée intérieure (29) du cylindre creux (10) ou roule respectivement sur cette dernière.
  2. Dispositif selon la revendication 1,
    caractérisé par le fait que la distance radiale, entre le cylindre creux (10) et le cylindre de compression (16), est réglable en vue de modifier l'interstice de compression.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé par le fait que le cylindre de compression (16) est suspendu, par l'intermédiaire de biellettes (20), à un tube (22) d'arrivée du produit, qui parcourt concentriquement le cylindre creux et est muni de fentes (24) à travers lesquelles le matériau est délivré à l'interstice de compression situé entre le cylindre creux (10) et le cylindre de compression (16).
  4. Dispositif selon l'une des revendications 1 à 3,
    caractérisé par le fait que les délimitations latérales des sections transversales des gorges profilées (12) et des nervures annulaires (18) convergent radialement vers l'extérieur.
  5. Dispositif selon la revendication 4,
    caractérisé par le fait que la section transversale des nervures annulaires (181) (respectivement des gorges profilées) revêt la forme d'un triangle isocèle.
  6. Dispositif selon la revendication 4,
    caractérisé par le fait que la section transversale des nervures annulaires (182) (respectivement des gorges profilées) revêt la forme d'un trapèze isocèle.
  7. Dispositif selon l'une des revendications 1 à 6,
    caractérisé par le fait que la pointe de la configuration de section transversale de la nervure annulaire (183) (respectivement de la gorge profilée) est arrondie.
  8. Dispositif selon la revendication 1,
    caractérisé par le fait que des segments annulaires cylindriques sont ménagés, sur le cylindre de compression (respectivement sur la face interne du cylindre creux), entre les nervures annulaires (184 ; 185).
  9. Dispositif selon les revendications 1, 4 et 8,
    caractérisé par le fait que la nervure annulaire (184) (respectivement la gorge profilée) est réalisée sous la forme d'un triangle équilatéral.
  10. Dispositif selon les revendications 1 et 8,
    caractérisé par le fait que les nervures annulaires (185) (et les gorges profilées correspondantes) sont réalisées de configuration rectangulaire en coupe transversale.
  11. Dispositif selon les revendications 1 à 10,
    caractérisé par le fait que le profil des nervures annulaires (18) et des gorges profilées (12) est différent.
EP91914061A 1990-08-14 1991-07-29 Dispositif de production de granules ou de pastilles a partir d'un materiau coulant Expired - Lifetime EP0550449B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4025744 1990-08-14
DE4025744A DE4025744C1 (fr) 1990-08-14 1990-08-14
PCT/EP1991/001418 WO1992003280A1 (fr) 1990-08-14 1991-07-29 Dispositif de production de granules ou de pastilles a partir d'un materiau coulant

Publications (2)

Publication Number Publication Date
EP0550449A1 EP0550449A1 (fr) 1993-07-14
EP0550449B1 true EP0550449B1 (fr) 1994-10-05

Family

ID=6412225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91914061A Expired - Lifetime EP0550449B1 (fr) 1990-08-14 1991-07-29 Dispositif de production de granules ou de pastilles a partir d'un materiau coulant

Country Status (6)

Country Link
EP (1) EP0550449B1 (fr)
AT (1) ATE112520T1 (fr)
DE (2) DE4025744C1 (fr)
DK (1) DK0550449T3 (fr)
ES (1) ES2061263T3 (fr)
WO (1) WO1992003280A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5340509A (en) * 1992-06-30 1994-08-23 Shell Oil Company Process for pelletizing ultra high melt flow crystalline polymers and products therefrom
US6699545B2 (en) 2001-12-21 2004-03-02 E. I. Du Pont De Nemours And Company Method for increasing solid state polymerization rate of polyester polymers
DE102007007310B4 (de) * 2007-02-07 2012-09-27 Sandvik Materials Technology Deutschland Gmbh Vorrichtung und Verfahren zum Herstellen von Pastillen

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE336967C (de) * 1921-05-21 Franz Meguin & Co A G Walzenpresse zur Herstellung von Briketts
US1804283A (en) * 1930-09-29 1931-05-05 Sizer Albert William Molding machine
US2052449A (en) * 1933-02-25 1936-08-25 Stanley L Connell Molding machine
GB687074A (en) * 1950-03-17 1953-02-04 Albert William Sizer Improvements in machines for the moulding of plastic material to form bars or pellets
FR1040332A (fr) * 1950-08-08 1953-10-14 Presse rotative continue notamment pour aliments du bétail et de la volaille
DE1142842B (de) * 1960-02-29 1963-01-31 Emil Hutt Vorrichtung zur Verdichtung und Entlueftung feinstaubfoermiger Stoffe
DE1150952B (de) * 1961-06-02 1963-07-04 Emil Hutt Verfahren und Vorrichtung zum Herstellen von Granulaten aus staubfoermigen Substanzen
DE1161238B (de) * 1962-05-16 1964-01-16 Emil Hutt Vorrichtung zur Granulierung von pulverfoermigen Substanzen
ES302917A1 (es) * 1963-10-30 1965-03-16 Deere & Co Una maquina para hacer heno y forrajes similares en pastillas.
FR1459319A (fr) * 1965-10-07 1966-04-29 Glaverbel Dispositif de production de granulés en continu
CH453306A (de) * 1965-12-07 1968-06-14 Weber Max Vorrichtung zur Herstellung von Granulaten
CH444460A (de) * 1966-03-22 1967-09-30 List Heinz Maschine zur Herstellung von Formlingen mit kammförmig ausgebildetem Keilspalt
DE3834785C1 (en) * 1988-10-12 1989-05-24 Gebr. Kaiser Maschinenfabrik, 4150 Krefeld, De Apparatus for generating granules or pellets from flowable material

Also Published As

Publication number Publication date
ATE112520T1 (de) 1994-10-15
ES2061263T3 (es) 1994-12-01
DK0550449T3 (da) 1995-04-18
DE4025744C1 (fr) 1992-03-12
DE59103188D1 (de) 1994-11-10
EP0550449A1 (fr) 1993-07-14
WO1992003280A1 (fr) 1992-03-05

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