EP0218194A2 - Dispositif à rouleaux de pressage, en particulier pour la région de haute pression des filtres-presses à bandes - Google Patents

Dispositif à rouleaux de pressage, en particulier pour la région de haute pression des filtres-presses à bandes Download PDF

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Publication number
EP0218194A2
EP0218194A2 EP86113556A EP86113556A EP0218194A2 EP 0218194 A2 EP0218194 A2 EP 0218194A2 EP 86113556 A EP86113556 A EP 86113556A EP 86113556 A EP86113556 A EP 86113556A EP 0218194 A2 EP0218194 A2 EP 0218194A2
Authority
EP
European Patent Office
Prior art keywords
press
roll
jacket sections
cylinder jacket
press roll
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.)
Withdrawn
Application number
EP86113556A
Other languages
German (de)
English (en)
Other versions
EP0218194A3 (fr
Inventor
Hajo Dipl.-Ing. Niemzig
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.)
Mei Tai Co Ltd
Original Assignee
Mei Tai Co Ltd
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 Mei Tai Co Ltd filed Critical Mei Tai Co Ltd
Publication of EP0218194A2 publication Critical patent/EP0218194A2/fr
Publication of EP0218194A3 publication Critical patent/EP0218194A3/fr
Withdrawn legal-status Critical Current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
    • B30B9/24—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 an endless pressing band
    • B30B9/246—The material being conveyed around a drum between pressing bands

Definitions

  • the invention relates to a press roll arrangement, in particular for the high-pressure area in belt filter presses, with at least one press roll, which is wrapped around on part of its circumference by two belts enclosing the material to be pressed.
  • press rolls are often used in belt filter presses in such a way that the press belts are looped back and forth between them in an S-shape.
  • the pressure depends on various parameters, such as the elasticity of the press belt, the duration of the press and also on the diameter of the press rolls. It has been shown that the pressure is largely independent of the wrap angle, but inversely proportional to the radius of the press rolls. For these reasons, press rolls with the smallest possible diameter would now be desirable.
  • the object of the invention is therefore to improve a press roll so that higher press pressures are achieved with unimpaired mechanical stability.
  • This object is achieved in that the contact surface of the belts on at least one press roll are several cylinder jacket sections, the diameter of which is smaller than the maximum diameter of the press roll.
  • the basic idea of the invention is therefore to alternately arrange pressing and tangential areas on a pressing roller on the circumferential side, as a result of which a smaller effective diameter than the maximum diameter of the pressing roller in the pressing areas results in a correspondingly higher pressing pressure and thus a higher degree of drying of the pressing material.
  • Such a press roll can be of particularly simple construction if the cylinder jacket sections are tubular jacket sections which are fastened, for example welded, to a roll core.
  • the solution according to the invention thus has the advantage that the diameter of the press roll comes into play where it is of essential importance, namely for the mechanical stability of the press roll, and the effective diameter of the circumferentially arranged tubular jacket sections causes an increase in the press pressure there.
  • the cylinder jacket sections continue relative to the tangential regions of the belts, so that grooves running parallel to the longitudinal axis of the press roll are formed, into which liquid is introduced from both sides of the press zones and discharged at the end faces of the press roll can be.
  • a further press roll of identical construction engages in a gear-like manner in the first press roll.
  • the press roll according to FIG. 1 consists of a roll core 10 which, depending on the static requirements with regard to material and diameter, can be selected in order to ensure sufficient mechanical stability with respect to the press forces.
  • a plurality of tubular jacket sections 10A to 10H are welded, the diameter d of which is smaller than the diameter D of the roller core 10.
  • pressing regions X and tangential regions Y alternate on the circumference, in which there is practically no pressing of the filter cake he follows.
  • the diameter d of the tubular jacket sections 10A to 10H is for the pressing, for the mechanical stability the diameter D of the roller core 10, since the contact surface with the diameter d is on the tubular jacket sections for the pressing pressure.
  • the receding pipe jacket sections form a discharge area Z, in that of the neighboring ones Press sections X, X 'of filtrate liquid flows and can be discharged from there, for example to the end face of the press roll or through suitable bores into the interior of the roll core 10.
  • the circumferential regions of the press roll therefore serve different purposes in a complementary manner.
  • the high-pressure tapes pressed from the outside can achieve the advantages according to the invention, such as, in particular, increasing the pressure on the filter cake.
  • Figure 2 shows schematically the interaction of an arrangement of presses according to the invention with conventional and inventive press rolls.
  • the press roll 20 lying first in the front direction of the two filter belts 50, 60 works with three press rolls 21, 22, 23, which are also constructed according to the invention, that is to say have a plurality of cylinder jacket sections (four are shown) on their outside.
  • the three outer press rolls 21, 22, 23 are positioned relative to the central press roll 20 with their axis of rotation such that the connecting line MN between the roll centers runs through the apex of the cylinder jacket sections of the outer press rolls 21, 22, 23, but through the discharge area (Z in Fig. 1) of the central press roll 20.
  • this effect can also be achieved by conventional press rolls, as shown in the lower central press roll 40, which cooperates with conventional press rolls 41, 42, 43 on its outer circumference.
  • conventional press rolls 41, 42, 43 With the same roll diameter D of the outer press rolls 41 ... compared to that of the outer press rolls 21 ... this results in a lower flexing effect due to the lack of the attached cylinder jacket sections.
  • press roll according to the invention as shown in FIG. 2 in connection with the central central press roll 30, cooperate circumferentially with conventional press rolls 31, 32, 33, which are positioned such that the connecting line MN passes through the roll diameter the apex of the cylinder jacket sections of the press roll 30.
  • conventional press rolls 31, 32, 33 which are positioned such that the connecting line MN passes through the roll diameter the apex of the cylinder jacket sections of the press roll 30.
EP86113556A 1985-10-10 1986-10-02 Dispositif à rouleaux de pressage, en particulier pour la région de haute pression des filtres-presses à bandes Withdrawn EP0218194A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8528848U 1985-10-10
DE8528848U DE8528848U1 (de) 1985-10-10 1985-10-10 Preßwalze, insbesondere für den Hochdruckbereich in Bandfilterpressen

Publications (2)

Publication Number Publication Date
EP0218194A2 true EP0218194A2 (fr) 1987-04-15
EP0218194A3 EP0218194A3 (fr) 1989-02-01

Family

ID=6786138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113556A Withdrawn EP0218194A3 (fr) 1985-10-10 1986-10-02 Dispositif à rouleaux de pressage, en particulier pour la région de haute pression des filtres-presses à bandes

Country Status (5)

Country Link
US (1) US4889628A (fr)
EP (1) EP0218194A3 (fr)
AU (1) AU605469B2 (fr)
DE (1) DE8528848U1 (fr)
ZA (1) ZA867710B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331834A1 (fr) * 1988-03-11 1989-09-13 Edo Masahiko Procédé et dispositif de drainage continu de boue, fruits, légumes et déchets de traitment de fruits et légumes
DE4219295A1 (de) * 1992-06-12 1993-12-16 Petkus Wutha Getreide Und Saat Walzenanordnung mit Führung des Doppelsiebbandes für die Hochdruckpreßzone einer Schlammentwässerungseinrichtung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3906452A1 (de) * 1989-03-01 1990-09-13 Voith Gmbh J M Einrichtung zum eindicken von fasersuspensionen
CA2357388A1 (fr) 2001-05-01 2002-11-01 Sebright Products, Inc. Filtre a bande presseuse a section en coin amelioree, a rouleau a aile, a rondelle de courroie et a ensemble de positionnement de courroie
CN100374179C (zh) * 2006-06-09 2008-03-12 贵州宏福实业开发有限总公司 一种翻盘过滤机托轮及其装配方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB350509A (en) * 1930-02-12 1931-06-12 Robert Taylor Binnie Improvements relating to apparatus for extracting liquid from solid or semi-solid matter by pressure
DE2010058A1 (en) * 1970-03-04 1971-12-09 Mager & Wedemeyer, 2800 Bremen Continuous filter press - with rolls staggered and overlapping in adj
US3743100A (en) * 1969-12-04 1973-07-03 A Bahr Filter press, more particularly for dewatering sludge in sewage treatment plants
DE2849307A1 (de) * 1978-11-14 1980-05-29 Hovex Bv Siebbandpresse
GB2066686A (en) * 1979-12-28 1981-07-15 Ichikawa Woolen Textile Sludge condensation and dewatering system
WO1983002585A1 (fr) * 1982-01-26 1983-08-04 Envirotech Corp Separations liquides/solides utilisant des rouleaux presseurs recouverts de couches elastomeres

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1461127A1 (de) * 1965-10-29 1968-12-19 Kuesters Eduard Vorrichtung zum Entwaessern von Zellulose- und Kartonbahnen u.dgl.
US3530791A (en) * 1968-04-15 1970-09-29 Percy Flotte Rotary cider press
DE2343324A1 (de) * 1973-08-28 1975-03-20 Albert Baehr Filterpresse, insbesondere zur entwaesserung von schlamm in abwasserklaeranlagen
US4071925A (en) * 1976-05-25 1978-02-07 The United States Of America As Represented By The Secretary Of Agriculture Apparatus for forming textile lap
JPS5779099A (en) * 1980-11-05 1982-05-18 Sanki Eng Co Ltd Pressing roller device for belt press
US4475453A (en) * 1981-02-17 1984-10-09 Envirotech Corporation Liquid-solid separation utilizing pressure rolls covered with elastomeric layers
SU1117229A1 (ru) * 1982-12-21 1984-10-07 Ростовский-На-Дону Ордена Трудового Красного Знамени Институт Сельскохозяйственного Машиностроения Пресс дл обезвоживани дисперсных материалов

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB350509A (en) * 1930-02-12 1931-06-12 Robert Taylor Binnie Improvements relating to apparatus for extracting liquid from solid or semi-solid matter by pressure
US3743100A (en) * 1969-12-04 1973-07-03 A Bahr Filter press, more particularly for dewatering sludge in sewage treatment plants
DE2010058A1 (en) * 1970-03-04 1971-12-09 Mager & Wedemeyer, 2800 Bremen Continuous filter press - with rolls staggered and overlapping in adj
DE2849307A1 (de) * 1978-11-14 1980-05-29 Hovex Bv Siebbandpresse
GB2066686A (en) * 1979-12-28 1981-07-15 Ichikawa Woolen Textile Sludge condensation and dewatering system
WO1983002585A1 (fr) * 1982-01-26 1983-08-04 Envirotech Corp Separations liquides/solides utilisant des rouleaux presseurs recouverts de couches elastomeres

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331834A1 (fr) * 1988-03-11 1989-09-13 Edo Masahiko Procédé et dispositif de drainage continu de boue, fruits, légumes et déchets de traitment de fruits et légumes
DE4219295A1 (de) * 1992-06-12 1993-12-16 Petkus Wutha Getreide Und Saat Walzenanordnung mit Führung des Doppelsiebbandes für die Hochdruckpreßzone einer Schlammentwässerungseinrichtung

Also Published As

Publication number Publication date
ZA867710B (en) 1987-05-27
AU605469B2 (en) 1991-01-17
AU6355986A (en) 1987-04-16
EP0218194A3 (fr) 1989-02-01
DE8528848U1 (de) 1985-11-28
US4889628A (en) 1989-12-26

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