EP0301000B1 - Presse a vis - Google Patents

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Publication number
EP0301000B1
EP0301000B1 EP87901711A EP87901711A EP0301000B1 EP 0301000 B1 EP0301000 B1 EP 0301000B1 EP 87901711 A EP87901711 A EP 87901711A EP 87901711 A EP87901711 A EP 87901711A EP 0301000 B1 EP0301000 B1 EP 0301000B1
Authority
EP
European Patent Office
Prior art keywords
screw
pressure cone
zone
thread
compressed
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
EP87901711A
Other languages
German (de)
English (en)
Other versions
EP0301000A1 (fr
Inventor
Hans-Erik KVARNSTRÖM
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT87901711T priority Critical patent/ATE68515T1/de
Publication of EP0301000A1 publication Critical patent/EP0301000A1/fr
Application granted granted Critical
Publication of EP0301000B1 publication Critical patent/EP0301000B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
    • B30B9/121—Screw constructions

Definitions

  • the present invention relates to an apparatus for compressing and dewatering moist cellulose-containing and/or other fibrous materials in pieces, e.g. waste paper, wood, grass, straw and other harvest products, cellulose, peat, bark and the like, which apparatus includes an input portion for the material, which is to be compressed and dewatered, a dewatering portion, and a discharge opening for the compressed and dewatered product, a rotary screw, and driving means, which make the scew rotate, said screw being eccentrically disposed in relation to the rotation axis of the screw and in relation to the mean screw line of the core, respectively.
  • Screw presses are also known in a plurality of designs for dewatering fiber materials and other compressible materials in the form of pieces. Embodiments of such screw presses are shown in US-A-2 615 385 and in US-A-4 121 967. By means of these and other known screw presses materials having a very high moisture content can be dewatered but not to such an extent as is required when producing fuel briquettes.
  • the object of the present invention is to design an apparatus of that kind, which is stated in the preamble and by means of which it is possible to dewater and to produce briquettes from the above-mentioned materials having moisture contents of as high as 60%, when hard, quite continuous briquettes having very high dry contents are produced.
  • eccentricities of the screw shaft or of the thread were the main cause of the desired result.
  • a cooperation between the eccentricities in the screw core and in the thread is achieved and thus, the core as well as the thread ought to be made eccentric in this area.
  • the eccentricity of the thread is preferably attained by making it waved.
  • the apparatus is, according to a preferred embodiment, designed in such a manner that the compressed body in or adjacent to the area of the drainage openings is cracked, so that the water from the central portion of the compressed body can be evacuated through the cracks outwards towards the jacket and then through the drainage openings in it.
  • the srew press shown in Figure 1 is mounted on a base 1.
  • the screw is mounted on base 1 by means of its feed portion 2, which is provided with an input portion 3.
  • a feed hopper 4 is arranged above the input portion.
  • a down-feeder 5 is disposed, which oscillates in a vertical direction and is driven via a crank 6 and transmission means 7 by driving shaft 8 of an electric motor 9.
  • Driving shaft 8 is extended through a shaft housing 10 and is designed to drive a screw 11.
  • Screw 11 extends through input portion 3, also through a dewatering cylinder 12 and finally into a first pressure cone 13.
  • a second pressure cone, which constitutes a direct extension of first pressure cone 13, has a reference numeral 14 and a terminating nozzle having a third conical constrution 16 has reference numeral 15.
  • Dewatering cylinder 12 and the preliminary portion of the connecting first pressure cone 13, Figure 4 are on their interior sides in a way known per se provided with longitudinal bars 17, which prevent the compressed material from rotating in the thread turn together with screw 11.
  • the reference numeral of this zone is 18 - the jacket of dewatering cylinder 12 is provided with a plurality of drainage holes 19, which are distributed around the jacket. They have a diameter of 3 mm. Drainage zone 18 is surrounded by a casing 20, which collects water, which flows or is forced out through holes 19. A drainage duct from casing 20 has reference numeral 21.
  • First pressure cone 13 is in its central portion surrounded by a cooling jacket 22, through which cooling water flows.
  • the thread or wings 28 of screw 11 are not extended into second pressure cone 14, which by means of threads 23 is tightened to first pressure cone 13, but in return an extension of core 27 of the screw is extended with an extension piece 45 into said second pressure cone 14.
  • This second pressure cone 14 is surrounded by a cooling jacket 24, through which cooling water flows in order to carry off heat, which is generated also in this second pressure cone.
  • the terminating nozzle 16, the terminating inner diameter 25 of which is chosen in accordance with the desired diameter of the briquettes, is also mounted on the preceding pressure cone by means of screwing.
  • Core 27 of screw 11 has a decreasing diameter along its length and partly also a varying shape.
  • Thread 28 has a varying pitch along the length of the screw.
  • thread 28 has a cylindric exterior contour, which in the area of first pressure cone 13 is transformed into a conical shape.
  • Screw 11 can as far as the varying pitch of thread 28 is concerned be divided into a plurality of zones I-VI.
  • first thread turn 28A zone I
  • zone II the thread pitch is somewhat smaller and during these three thread turns 28B a certain compressing of the material takes place.
  • zone III in dewatering cylinder 12
  • the very large thread pitch leads to a tearing apart of the compressed material anew, which results in a multitude of cracks in the material with a predominantly radial direction.
  • the material is compacted again in the following three thread turns 28D in zone IV in dewatering cylinder 12.
  • screw 11 has a conical shape.
  • the terminating thread turn in zone IV extends into pressure cone 13 with a moderate pitch.
  • the following three thread turns 28E have a very small waved pitch.
  • This feature as well as the conically decreasing shape of the thread turn lead to a very forceful additional compressing of the compressed material, while a very high pressure and heat is generated.
  • the waved or winding shape of the thread results in a compressing of the compressed material by jerks, which has proved to be particularily effective, when trying to achieve a maximal compressing, and at the same time seems to facilitate the water removal. The latter effect seems to occur in the clearance or unloading phases, which follow every crest of a wave on the thread.
  • Core 27 of the screw is shaped in the thread path between the thread turns in such a way, that the thread path bottom in axial sections is bowl-shaped, which is known per se.
  • the mean diameter of screw core 27 is in the first three zones I-III and also in about half the fourth zone IV unalterably the same.
  • the shape of screw core 27 in the remaining part is quite complicated.
  • the diameter of thread path in this part is smaller than in the preceding thread turn.
  • the diameter decreases further but to different degrees on different sides of the rotation axis, as is shown in Figures 2 and 3. While the diameter of the core decreases symmetrically, conically in an axial section, Figure 2, it decreases unsymmetrically in a section, which is transverse to the preceding one, Figure 3.
  • the smallest radius R1 in thread path bottom 40 is considerably smaller than the smallest radius R2 in thread path bottom 41 on the opposite side of the screw.
  • radius R3 is less than R4.
  • radius R1 is smaller than the largest radius R5 in thread path bottom 42.
  • the terminating pin 45 is eccentrically disposed but is parallell with the screw axis, which means that its point 46 while it is rotating describes a small circle, which prevents the packing of the canal, which screw core 27 has formed in the middle of the compressed body.
  • the finished briquette material, which is pressed out through the terminating nozzle 15, is tube-shaped, so that steam also can leave pressure cone 13 in this central channel, in which a passage is kept open all the time by means of eccentric rotary pin 45.
  • Driving means used to turn the nozzle has symbolically been indicated with numeral 51.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Materials For Medical Uses (AREA)
  • Press Drives And Press Lines (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Paper (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Claims (6)

1. Appareil pour comprimer et dessécher des matières humides contenant de la cellulose et/ou d'autres matières fibreuses humides se présentant en morceaux, par exemple du papier de rebut, du bois, de l'herbe, de la paille et d'autres produits de moisson, de la cellulose, de la tourbe, de l'écorce et similaires, cet appareil comprenant une partie d'entrée (3) pour la matière à comprimer et à dessécher, une partie de dessiccation, et une ouverture d'évacuation du produit comprimé et desséché, une vis tournante (11) et des moyens d'entraînement (8, 9) qui font tourner la vis, ladite vis étant disposée de façon excentrée par rapport à l'axe de rotation de la vis et par rapport à la ligne médiane du corps de vis respectivement, caractérisé en ce qu'au moins un premier cône de pression (13) est prévu pour assurer une compression efficace de la matière, en ce que la paroi dudit cône de pression est imperméable sur au moins une zone de celui-ci, en ce qu'une partie d'enveloppe (12) qui présente des trous d'évacuation (19) est disposée en amont dudit premier cône de pression, et en ce que ladite vis s'étend à partir de ladite partie d'entrée, à travers ladite partie d'enveloppe présentant les trous d'évacuation, et à l'intérieur de ladite zone du cône de pression,présentant une paroi imperméable.
2. Appareil selon la revendication 1 caractérisé en ce que, dans la région dudit cône de pression, la vis est conique.
3. Appareil selon la revendication 2 caractérisé en ce que, dans la région du cône de pression, le filetage de la vis est ondulé.
4. Appareil selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le corps de la vis présente un prolongement ayant la forme d'un axe excentré (45).
5. Appareil selon la revendication 3, caractérisé en ce que le filetage est d'un pas sensiblement plus grand dans la zone desdits trous d'évacuation ou dans une zone qui lui est adjacente, de façon à déchirer la matière comprimée pour faciliter l'écoulement, vers l'arrière en direction de l'enveloppe et des trous d'évacuation, de l'eau provenant des parties centrales de la matière comprimée.
6. Appareil selon la revendication 4, caractérisé en ce que l'axe excentré (45) traverse un second cône de pression (14).
EP87901711A 1986-03-12 1987-02-16 Presse a vis Expired EP0301000B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87901711T ATE68515T1 (de) 1986-03-12 1987-02-16 Schraubenpresse.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8601152 1986-03-12
SE8601152A SE452331B (sv) 1986-03-12 1986-03-12 Skruvpress for komprimering och avvattning av mer eller mindre fuktiga cellulosahaltiga och/eller andra fibrosa material i styckeform

Publications (2)

Publication Number Publication Date
EP0301000A1 EP0301000A1 (fr) 1989-02-01
EP0301000B1 true EP0301000B1 (fr) 1991-10-16

Family

ID=20363803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87901711A Expired EP0301000B1 (fr) 1986-03-12 1987-02-16 Presse a vis

Country Status (9)

Country Link
EP (1) EP0301000B1 (fr)
AT (1) ATE68515T1 (fr)
AU (1) AU7128187A (fr)
DE (1) DE3773927D1 (fr)
DK (1) DK167934B1 (fr)
FI (1) FI92478C (fr)
NO (1) NO168430C (fr)
SE (1) SE452331B (fr)
WO (1) WO1987005619A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452492A (en) * 1992-09-26 1995-09-26 Hamilton; Robin Material collection
US5611268A (en) * 1992-09-26 1997-03-18 Hamilton; Robin Compactor with expanding and contracting nozzle

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4871449A (en) * 1988-06-27 1989-10-03 Lott W Gerald Clarifier and screw compactor liquid-solid separator
CN100411865C (zh) * 2006-04-12 2008-08-20 江国庆 炭棒成型机
GB2448925A (en) * 2007-05-04 2008-11-05 Taylor Products Ltd Compactor
PL218588B1 (pl) * 2009-06-18 2015-01-30 Adam Piotr Junczyk Sposób wytwarzania brykietów z rozdrobnionej słomy i urządzenie do wytwarzania brykietów
CN102357515B (zh) * 2011-10-26 2014-03-19 邢征 厨余垃圾粉碎压榨处理机
CN117681481A (zh) * 2022-09-09 2024-03-12 雄伟先进机械工程有限公司 压力调节装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1087935A (fr) * 1953-08-13 1955-03-01 Larbodiere Ets Appareil pour la liquéfaction de l'essence solidifiée
FR2555100B1 (fr) * 1983-11-21 1986-05-23 Cohen Raymond Vis d'extrusion ainsi que les machines pourvues de cette vis

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452492A (en) * 1992-09-26 1995-09-26 Hamilton; Robin Material collection
US5611268A (en) * 1992-09-26 1997-03-18 Hamilton; Robin Compactor with expanding and contracting nozzle
US5768744A (en) * 1992-09-26 1998-06-23 Hamilton; Robin Self-propelled waste collection vehicle

Also Published As

Publication number Publication date
FI884188A7 (fi) 1988-09-12
FI92478B (fi) 1994-08-15
DK592187A (da) 1987-11-12
DK592187D0 (da) 1987-11-12
AU7128187A (en) 1987-10-09
WO1987005619A1 (fr) 1987-09-24
NO874588L (no) 1987-11-03
DK167934B1 (da) 1994-01-03
FI884188A0 (fi) 1988-09-12
FI92478C (fi) 1994-11-25
NO168430B (no) 1991-11-11
NO168430C (no) 1992-02-19
SE8601152D0 (sv) 1986-03-12
ATE68515T1 (de) 1991-11-15
DE3773927D1 (de) 1991-11-21
SE452331B (sv) 1987-11-23
SE8601152L (sv) 1987-09-13
EP0301000A1 (fr) 1989-02-01
NO874588D0 (no) 1987-11-03

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