EP0143415B1 - Dispositif d'agglomération à deux étapes - Google Patents

Dispositif d'agglomération à deux étapes Download PDF

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Publication number
EP0143415B1
EP0143415B1 EP84113947A EP84113947A EP0143415B1 EP 0143415 B1 EP0143415 B1 EP 0143415B1 EP 84113947 A EP84113947 A EP 84113947A EP 84113947 A EP84113947 A EP 84113947A EP 0143415 B1 EP0143415 B1 EP 0143415B1
Authority
EP
European Patent Office
Prior art keywords
die
plate
press rolls
pelletizing apparatus
pellets
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
Application number
EP84113947A
Other languages
German (de)
English (en)
Other versions
EP0143415A3 (en
EP0143415B2 (fr
EP0143415A2 (fr
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/fr
Publication of EP0143415A3 publication Critical patent/EP0143415A3/de
Application granted granted Critical
Publication of EP0143415B1 publication Critical patent/EP0143415B1/fr
Publication of EP0143415B2 publication Critical patent/EP0143415B2/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
    • B30B11/22—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 pits as pellet strands (US Pat. No. 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.
  • this object is achieved by two-stage pelleting. Pretreatment of the material enables an even and satisfactory throughput to be achieved.
  • 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 reduced to pellets of the desired type here be expelled.
  • Two conventional cylindrical press rolls can run on the upper die.
  • Two to four tapered press rolls are preferred for the lower die.
  • the first stage has a very good throughput.
  • the material discharged from the first stage is further crushed 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.
  • 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 compacted 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 in order to obtain relatively long pressing distances, which are expedient for a sufficient strength of the pellets.
  • the diameter and length of the upper and lower through holes are matched so that the amount of pre-shredded and pre-compacted material that passes through the upper holes 22 on average is not greater than the amount that passes through the lower holes 12 is ejected.
  • the combination of two stages provided according to the invention makes it possible to pelletize material without other pretreatment, which material also contains or consists of large and coarse pieces.
  • the arrangement of two pan aisles on top of each other saves investment costs, installation space and work. It also enables even material feed and output.
  • the device shown 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. When using gears, the upper rollers can also be made conical. Another modification is to arrange the pan heads on a fixed central column and to support the matrices rotatably thereon and to provide them with drive devices on their outer circumference. Depending on the material to be treated, its state after the pretreatment in the first stage and the desired properties of the pellets, 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 according to the invention in the first stage leads to the fact that fine particles, dust and any liquids which separate out during the comminution are distributed in the discharged loose pellets and remain bound until the material in the second stage is edited again.
  • At least the lower die 10 can therefore be provided with devices (not shown) for setting and maintaining a treatment temperature.
  • 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)

Claims (5)

1. Dispositif d'agglomération, dans lequel des rouleaux presseurs (11), disposés de façon à pouvoir tourner librement sur une tête de maneton (13), roulent, sur une matrice (10), plane et perforée par rotation de la tête de maneton (13) par rapport à la matrice (10), caractérisé en ce que le dispositif d'agglomération est constitué en deux étages, en ce que deux matrices (10, 20) sont disposées l'une au-dessus de l'autre, avec les rouleaux presseurs (11, 21) roulant sur elles, et en ce que la matrice supérieure (20) présente de grands trous de passage (22) pour obtenir des cordons agglomérés peu cohérents en matière prébroyée, et la matrice inférieure (10), de plus petits trous (12) de passage, lesquels correspondent aux dimensions et au compactage des agglomérés à fabriquer.
2. Dispositif d'agglomération selon la revendication 1, caractérisé en ce que des rouleaux presseurs (21) cylindriques roulent sur la matrice supérieure (20), et des rouleaux presseurs coniques (11), sur la matrice inférieure (10).
3. Dispositif d'agglomération selon la revendication 1 ou 2, comprenant des maître-arbres pour entraîner une tête de maneton, caractérisé en ce que les têtes de maneton des deux groupes de rouleaux presseurs (11, 21) sont entraînés par le même maître-arbre (30).
4. Dispositif d'agglomération selon l'une des revendications 1 à 3, caractérisé en ce que les rouleaux presseurs supérieurs et les rouleaux presseurs inférieurs (11, 21) peuvent être appuyés par des dispositifs respectifs contre les matrices correspondantes (10, 20).
5. Dispositif d'agglomération selon l'une des revendications 1 à 4, caractérisé en ce que la matrice inférieure (10) est pourvue de dispositifs pour régler et maintenir une température de fonctionnement.
EP84113947A 1983-11-25 1984-11-17 Dispositif d'agglomération à deux étapes Expired - Lifetime EP0143415B2 (fr)

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 (fr) 1985-06-05
EP0143415A3 EP0143415A3 (en) 1986-09-10
EP0143415B1 true EP0143415B1 (fr) 1989-03-15
EP0143415B2 EP0143415B2 (fr) 1992-05-20

Family

ID=6215256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113947A Expired - Lifetime EP0143415B2 (fr) 1983-11-25 1984-11-17 Dispositif d'agglomération à deux étapes

Country Status (4)

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

Families Citing this family (18)

* 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 (fr) * 2007-05-04 2008-11-05 Amandus Kahl GmbH & Co. KG Procédé de fabrication de grains à base de produits fibreux
EP2143554A1 (fr) 2008-07-10 2010-01-13 Amandus Kahl GmbH & Co. KG Procédé destiné à la transformation de lignocellulose en matière fibreuse
EP2157158B1 (fr) 2008-08-22 2016-07-20 Amandus Kahl GmbH & Co. KG Procédé de fabrication de pellets à partir de matière brutes fibreuses à gros grains
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
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
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

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
EP0143415B2 (fr) 1992-05-20
EP0143415A2 (fr) 1985-06-05
DE3342660C2 (fr) 1991-04-25

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