EP0143415B2 - Zweistufige Pelletiervorrichtung - Google Patents

Zweistufige Pelletiervorrichtung Download PDF

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Publication number
EP0143415B2
EP0143415B2 EP84113947A EP84113947A EP0143415B2 EP 0143415 B2 EP0143415 B2 EP 0143415B2 EP 84113947 A EP84113947 A EP 84113947A EP 84113947 A EP84113947 A EP 84113947A EP 0143415 B2 EP0143415 B2 EP 0143415B2
Authority
EP
European Patent Office
Prior art keywords
die
plate
press rolls
pellets
pelletizing apparatus
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
EP84113947A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0143415A3 (en
EP0143415A2 (de
EP0143415B1 (de
Inventor
Volker Benson
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.)
Blohm and Voss GmbH
Original Assignee
Blohm and Voss GmbH
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 Blohm and Voss GmbH filed Critical Blohm and Voss GmbH
Priority to AT84113947T priority Critical patent/ATE41356T1/de
Publication of EP0143415A2 publication Critical patent/EP0143415A2/de
Publication of EP0143415A3 publication Critical patent/EP0143415A3/de
Application granted granted Critical
Publication of EP0143415B1 publication Critical patent/EP0143415B1/de
Publication of EP0143415B2 publication Critical patent/EP0143415B2/de
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
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/228—Extrusion presses; Dies therefor using pressing means, e.g. rollers moving over a perforated die plate

Definitions

  • the invention relates to a pelletizing device which is intended in particular for the production of pellets from coarse, long-fiber or similar material.
  • a pelletizing device the material is first comminuted and mixed, similar to a pan mill, before it is then extruded through through holes as pellet strands (US-A -2 205 328, DE-A-2 002 638).
  • material is also pelletized which, due to its shape or composition, is difficult for the press rolls to grasp or which requires a lengthy comminution and mixing before it can be pressed into the through holes.
  • this material also includes, for example, straw, large dried leaves, treated and untreated parts of plants, paper, wood waste, etc.
  • the properties of such material can result in the treatment between the press rolls and the die taking a relatively long time and the throughput of one Pelletizing device becomes small as a whole or only temporarily.
  • a two-stage pelletizing device is known (EP-A-49025), in which two matrices are arranged one above the other, the upper die having large through holes and the lower die having smaller through holes.
  • the known pelletizing device is not suitable for being able to process even difficult material with high throughput.
  • the device according to the invention has two matrices arranged one above the other, each with associated press rolls, the upper die being provided with relatively large through-holes from which loose pellet strands emerge, which then fall onto the lower die and are further comminuted to the pellets of the desired type here be expelled.
  • Two common cylindrical press rolls run on the upper die.
  • Two to four tapered press rolls are preferred for the lower die.
  • the first stage has very good throughput.
  • the material discharged from the first stage is further shredded and then pressed into the narrower through holes, where solidification takes place due to friction on the walls, so that pellets are produced which meet the usual requirements.
  • the two pan heads are arranged on a rotatable vertical shaft.
  • the pressure of each group of press rolls is set separately.
  • a lower die 10 with conical press rollers 11 on a lower pan head 13 and an upper die 20 with cylindrical press rollers 21 on a pan head 23 are arranged on a vertical shaft 30, which extends vertically from a gear housing 1.
  • the matrices 10, 20 are by z. B. columns 2 supported.
  • the two stages of the device are covered by protective hoods 3.
  • a collecting space 5 Arranged under the lower die 10 is a collecting space 5 which receives the pellets produced and in which a device for ejecting can be arranged, which is not shown.
  • the pan heads 13, 23 are pressed against the matrices by pressing means 15, 25.
  • the upper press rollers 21 are freely rotatably mounted on the upper pan head 23 by means of axes 24 and are rotated by the friction on the die or on the material to be processed lying on the die.
  • the lower press rollers 11 rotate about axes 14 which are fastened in the lower pan head 13.
  • the axes 14 are inclined according to the cone angle of the press rollers 11.
  • the upper die 20 has through holes 22 of relatively large diameter. They are used in particular to discharge the pre-shredded material from the first stage through the die 20 into the second stage. A possible compression of the material in the through holes 22 is of secondary importance, since the pellets dispensed in the second stage on the die 10 are destroyed again by the press rollers 11. This involves further shredding and mixing of the material.
  • the material is then pressed under the high pressure of the press rollers 11 into and through the entry openings of the through holes 12.
  • the material is further solidified and compressed in the through holes 12, so that pellet strands are extruded with the smaller diameter of the through holes 12.
  • the strands break into individual pellets or are cut to predetermined lengths by a cutting device (not shown).
  • the thickness of the lower die 10 is greater than that of the upper die 20 by relatively long pressing distances.
  • the diameter and length of the upper and lower through holes are coordinated with one another in such a way that the amount of the pre-comminuted and pre-compacted material, which averages through the upper Holes 22 passes, is not greater than the amount that is ejected through the lower holes 12.
  • the illustrated device can be modified in various ways. For example, it can be advantageous to provide the upper press rollers with teeth that engage teeth on the upper die.
  • pan heads are on a fixed central column and to rotatably support the matrices thereon and to provide them with drive devices on their outer circumference.
  • the dies or their perforations and the cylindrical or conical, optionally toothed press rolls that interact with them must be selected.
  • a two-stage pelletization can also be advantageous with easy-to-treat material in order to achieve a high throughput with good mixing.
  • the treatment in the first stage leads to the fact that fine particles, dust and any liquids that separate out during the comminution are distributed in the discharged loose pellets and remain bound until the material is processed again in the second stage becomes.
  • an electric heater can heat the die to the working temperature at least when the device is started, and the heat generated during operation by friction and pressure can be partially dissipated by cooling water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Glanulating (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Processing Of Solid Wastes (AREA)
  • Die Bonding (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Press Drives And Press Lines (AREA)
EP84113947A 1983-11-25 1984-11-17 Zweistufige Pelletiervorrichtung Expired - Lifetime EP0143415B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84113947T ATE41356T1 (de) 1983-11-25 1984-11-17 Zweistufige pelletiervorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3342660 1983-11-25
DE19833342660 DE3342660A1 (de) 1983-11-25 1983-11-25 Zweistufige pelletisiervorrichtung

Publications (4)

Publication Number Publication Date
EP0143415A2 EP0143415A2 (de) 1985-06-05
EP0143415A3 EP0143415A3 (en) 1986-09-10
EP0143415B1 EP0143415B1 (de) 1989-03-15
EP0143415B2 true EP0143415B2 (de) 1992-05-20

Family

ID=6215256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113947A Expired - Lifetime EP0143415B2 (de) 1983-11-25 1984-11-17 Zweistufige Pelletiervorrichtung

Country Status (4)

Country Link
EP (1) EP0143415B2 (da)
AT (1) ATE41356T1 (da)
DE (2) DE3342660A1 (da)
DK (1) DK559184A (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102555269A (zh) * 2010-12-23 2012-07-11 宁陵县供电局 一种秸秆颗粒压制机成型盘

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE54606T1 (de) * 1985-05-09 1990-08-15 Buehler Ag Geb Verfahren zum erzeugen eines pelletierten futtermittels, und vorrichtung zur durchfuehrung des verfahrens.
DD251251A3 (de) * 1985-09-25 1987-11-11 Forsch Rationalisierung Veb Vorrichtung zum pressen von straengen
DE3617201A1 (de) * 1986-05-22 1987-11-26 Salzhausener Maschinenbautechn Einrichtung zur herstellung von pellets
DE3711379A1 (de) * 1987-04-04 1988-10-20 Hoelter Heinz Pelletisierpresse
AUPP148398A0 (en) * 1998-01-23 1998-02-19 Crop Care Australasia Pty Ltd Granulator
CN1282538C (zh) * 2002-07-19 2006-11-01 国能惠远生物质能发展有限公司 一种生物质可成型材料的成型方法及成型机构
EP1987947A1 (de) * 2007-05-04 2008-11-05 Amandus Kahl GmbH & Co. KG Verfahren zum Herstellen von Pellets aus faserigen Produkten
EP2143554A1 (de) 2008-07-10 2010-01-13 Amandus Kahl GmbH & Co. KG Verfahren zum Aufschluss von Lignozellulosen zu Faserstoffen
EP2157158B1 (de) 2008-08-22 2016-07-20 Amandus Kahl GmbH & Co. KG Verfahren zum herstellen von pellets aus nachwachsenden grobstückigen faserigen rohstoffen
CN101972685A (zh) * 2010-08-09 2011-02-16 高邮市林源科技开发有限公司 秸秆原料预处理、原料成型双模设备
CN101961926A (zh) * 2010-09-30 2011-02-02 浙江圣普新能源科技有限公司 生物质燃料成型机
FI127057B (fi) * 2010-12-17 2017-10-31 Teknologian Tutkimuskeskus Vtt Oy Laite ja menetelmä massan muokkaamiseksi ja puristamiseksi
CN202096935U (zh) * 2011-03-29 2012-01-04 高小林 秸秆碾碎离心定位挤压机
CN102294838A (zh) * 2011-08-20 2011-12-28 周宇峰 秸秆木碳压制成型机
ITPI20130009A1 (it) * 2013-02-14 2014-08-15 Giuseppe Calderani Vibrovaglio per pellettatrice
CN103213301A (zh) * 2013-03-29 2013-07-24 合肥工业大学 生物质固体燃料成型设备
CN103434178B (zh) * 2013-07-26 2015-09-30 北京奥科瑞丰新能源股份有限公司 三层生物质挤压成型装置及立式生物质挤压成型机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE613028C (de) * 1934-01-24 1935-05-10 Albert William Sizer Formmaschine fuer Futtermittel u. dgl.
GB504594A (en) * 1938-04-13 1939-04-27 Arnold Frank Wills Improvements in or relating to extruding machines for clay, soap and other plastic material
DE2714614C3 (de) * 1977-04-01 1979-12-06 Projektierung Chemische Verfahrenstechnik Gmbh, 4030 Ratingen Verfahren und Vorrichtung zum Herstellen von Briketts aus wenigstens teilweise körnigem oder pulverartigem Einsatzgut
DE3342659A1 (de) * 1983-11-25 1985-06-05 Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel Pelletisiermatrize
DE3344044A1 (de) * 1983-12-06 1985-06-20 Amandus Kahl Nachf. (GmbH & Co), 2057 Reinbek Verfahren und vorrichtung zum verpressen von pulverfoermigen oder aehnlichen stoffen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102555269A (zh) * 2010-12-23 2012-07-11 宁陵县供电局 一种秸秆颗粒压制机成型盘

Also Published As

Publication number Publication date
ATE41356T1 (de) 1989-04-15
DK559184D0 (da) 1984-11-23
EP0143415A3 (en) 1986-09-10
DE3477158D1 (en) 1989-04-20
DK559184A (da) 1985-05-26
DE3342660A1 (de) 1985-06-05
EP0143415A2 (de) 1985-06-05
DE3342660C2 (da) 1991-04-25
EP0143415B1 (de) 1989-03-15

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