EP0472016A3 - Method for controlling a slip in a pellet press and apparatus for applying the method - Google Patents

Method for controlling a slip in a pellet press and apparatus for applying the method Download PDF

Info

Publication number
EP0472016A3
EP0472016A3 EP19910112845 EP91112845A EP0472016A3 EP 0472016 A3 EP0472016 A3 EP 0472016A3 EP 19910112845 EP19910112845 EP 19910112845 EP 91112845 A EP91112845 A EP 91112845A EP 0472016 A3 EP0472016 A3 EP 0472016A3
Authority
EP
European Patent Office
Prior art keywords
slip
measuring
pellet press
applying
controlling
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.)
Granted
Application number
EP19910112845
Other languages
German (de)
Other versions
EP0472016A2 (en
EP0472016B1 (en
Inventor
Willi Wetzel
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
Publication of EP0472016A2 publication Critical patent/EP0472016A2/en
Publication of EP0472016A3 publication Critical patent/EP0472016A3/en
Application granted granted Critical
Publication of EP0472016B1 publication Critical patent/EP0472016B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • B30B11/005—Control arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S100/00—Presses
    • Y10S100/903—Pelleters
    • Y10S100/905—Pelleters inner roll
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/23—Hay wafering or pelletizing means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Control Of Presses (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Glanulating (AREA)

Abstract

A pellet press (1) is equipped with a control device by means of which it is possible to maintain a desired degree of pressing roller slip, for example none, or a presettable maximum value. <??>For this purpose, the pellet press (1) has a first measuring device (27, 28) for measuring the circumferential speed of the perforated die (8) and a second measuring device (23, 24) for measuring the circumferential speed of the pressing rollers (11, 12). The two circumferential speeds are compared in a comparison device (30, 31) and when a preselectable maximum value for the difference of the two measured values is exceeded, a slip signal is generated by means of which the press drive and/or the feeding of starting material to be pressed is influenced in such a way that the slip is suppressed. <IMAGE>
EP91112845A 1990-08-20 1991-07-31 Method for controlling a slip in a pellet press and apparatus for applying the method Expired - Lifetime EP0472016B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2697/90 1990-08-20
CH2697/90A CH681969A5 (en) 1990-08-20 1990-08-20

Publications (3)

Publication Number Publication Date
EP0472016A2 EP0472016A2 (en) 1992-02-26
EP0472016A3 true EP0472016A3 (en) 1992-08-12
EP0472016B1 EP0472016B1 (en) 1994-08-31

Family

ID=4239559

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91112845A Expired - Lifetime EP0472016B1 (en) 1990-08-20 1991-07-31 Method for controlling a slip in a pellet press and apparatus for applying the method

Country Status (5)

Country Link
US (1) US5152215A (en)
EP (1) EP0472016B1 (en)
AT (1) ATE110626T1 (en)
CH (1) CH681969A5 (en)
DE (1) DE59102728D1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5792485A (en) * 1989-08-21 1998-08-11 Korse; Theodorus H. Pelleting press
EP0598318B1 (en) * 1992-11-14 1999-07-28 Degussa-Hüls Aktiengesellschaft Process for preparing spherical granulates from powdery solids
DE4426372A1 (en) * 1994-07-26 1996-02-01 Salzhausener Maschinenbautechn Process for processing pelletizable material
EP2517868A1 (en) * 2011-04-29 2012-10-31 Andritz AG Method of controlling a pellet mill
CA2834119C (en) 2011-04-29 2015-12-01 Andritz Ag Method of controlling a pellet mill
JP6775311B2 (en) 2016-03-29 2020-10-28 株式会社菊水製作所 Molded product manufacturing system
EP3335868B1 (en) * 2016-12-12 2021-06-09 Kikusui Seisakusho Ltd. Controller and control method for rotary compression molding machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932736A (en) * 1974-04-08 1976-01-13 Beta Corporation Of St. Louis Automatic pellet producing system
FR2341429A1 (en) * 1976-02-20 1977-09-16 Desvigne Maurice DIE PRESS FOR COMPRESSION OF ANIMAL FOOD PRODUCTS
US4238432A (en) * 1979-05-03 1980-12-09 Internationale Octrooi Maatschappij Extrusion presses
US4463430A (en) * 1981-08-31 1984-07-31 Beta Corporation Microprocessor based pellet mill control
EP0231764A2 (en) * 1986-01-24 1987-08-12 Bühler Ag Pellet press
DE3816842A1 (en) * 1988-05-18 1989-11-23 Schlueter Gmbh U Co Kg H Annular die press

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711622A (en) * 1984-07-04 1987-12-08 Gebruder Buhler Ag Pellet mill

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932736A (en) * 1974-04-08 1976-01-13 Beta Corporation Of St. Louis Automatic pellet producing system
FR2341429A1 (en) * 1976-02-20 1977-09-16 Desvigne Maurice DIE PRESS FOR COMPRESSION OF ANIMAL FOOD PRODUCTS
US4238432A (en) * 1979-05-03 1980-12-09 Internationale Octrooi Maatschappij Extrusion presses
US4463430A (en) * 1981-08-31 1984-07-31 Beta Corporation Microprocessor based pellet mill control
EP0231764A2 (en) * 1986-01-24 1987-08-12 Bühler Ag Pellet press
DE3816842A1 (en) * 1988-05-18 1989-11-23 Schlueter Gmbh U Co Kg H Annular die press

Also Published As

Publication number Publication date
CH681969A5 (en) 1993-06-30
ATE110626T1 (en) 1994-09-15
DE59102728D1 (en) 1994-10-06
EP0472016A2 (en) 1992-02-26
US5152215A (en) 1992-10-06
EP0472016B1 (en) 1994-08-31

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