EP0091424A2 - Filtre-presse à bandes - Google Patents

Filtre-presse à bandes Download PDF

Info

Publication number
EP0091424A2
EP0091424A2 EP83890041A EP83890041A EP0091424A2 EP 0091424 A2 EP0091424 A2 EP 0091424A2 EP 83890041 A EP83890041 A EP 83890041A EP 83890041 A EP83890041 A EP 83890041A EP 0091424 A2 EP0091424 A2 EP 0091424A2
Authority
EP
European Patent Office
Prior art keywords
rollers
driven
sieve
belt
roller
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
EP83890041A
Other languages
German (de)
English (en)
Other versions
EP0091424A3 (en
EP0091424B1 (fr
Inventor
Robert Wolkenstein
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.)
Voestalpine AG
Original Assignee
Voestalpine 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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0091424A2 publication Critical patent/EP0091424A2/fr
Publication of EP0091424A3 publication Critical patent/EP0091424A3/de
Application granted granted Critical
Publication of EP0091424B1 publication Critical patent/EP0091424B1/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
    • B30B9/24—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

Definitions

  • the invention relates to a screen belt press, in which the material to be dewatered is pressed between two self-contained screen belts and passed over a plurality of rollers or rollers, a screen belt being driven by at least two rollers.
  • a belt press can be found, for example, in DE-OS 2 127 974. With such belt presses, it is also known to pre-dewater the material to be dewatered first in a sieving zone and then in a wedge zone in which the two belt belts are converged and to lead over dewatering drums, the first dewatering drum generally permitting the passage of water not only through the outer of the two sieve belts but also through the inner of the two sieve belts.
  • the invention now aims to equalize the tensile stress in the belt or filter belt press and thus to improve the dewatering performance of the belt press.
  • the invention essentially consists in that both sieve belts are guided separately via driven rollers in the region of the side on which the dewatered material is thrown off, and that additionally in the region in which the sieve belts are guided together over rollers, at least one roller is driven.
  • the drive-induced strap tension can be equalized, that is, the tension drop that would otherwise occur can be avoided or adjusted in the first part.
  • the additionally driven roller which is preferably arranged in the central region, acts on its circumference with a Screen or filter belt together, which is driven again at the discharge end.
  • the screen belt located outside and not directly driven by this additionally driven roller or roller can likewise be driven directly by a further driven roller or roller arranged in the central region of the screen belt press, as a result of which the belt tension can be further evened out.
  • At least two driven rollers or rollers each have a separate and controllable drive.
  • This design makes it possible, in addition to the general belt speed control, to slightly change the peripheral speed of the second driven roller or roller compared to the first driven roller or roller, so that an increased pressing pressure and thus more intensive dewatering can be set between the two driven rollers.
  • the driven rollers are driven at a synchronous peripheral speed, e.g. by means of controllable geared motors and advantageously using the torque-dependent speed elasticity of electric motors.
  • the screen or filter belt press is designated 1.
  • two screen or filter belts 2, 3 are guided in a closed circuit and tensioning rollers 4 are provided for setting the correct belt tension.
  • the sieve or filter belts 2, 3 are brought together in front of a first dewatering drum 5, the material to be dewatered being introduced into the gap between the two screen or filter belts 2 and 3.
  • the two sieve or filter belts 2, 3 are then guided over dewatering rollers 6 and 7.
  • the deflection rollers for the sieve or filter belts are designated 8.
  • a deflection roller 8 via which the respective sieve belt is guided separately from the other sieve belt, is equipped with a drive 10 for each sieve belt 2 or 3.
  • Another drive roller interacts with the screen or filter belt 2.
  • the drive 9, 10 (not shown in its details) for the drive rollers can be regulated and adjusted.
  • a dewatering roller 7 which interacts with the other screen or filter belt 3, can be provided with a drive in an analogous manner.
  • the other sieve belt 3 is provided with a drive at least by a deflecting roller 8 in the area in which this sieve belt runs back separately.
  • control rollers With 11 control rollers are designated, with which the course of the tape can be checked.
  • the driven rollers with the drives 9 and 10 are driven to convey a synchronous belt speed, for example, by controllable geared motors, not shown.
  • a slight delay in the peripheral speed of the driven roller 10 leads to an increase in the contact pressure in the area of the intermediate drainage roll 6 and can further improve the drainage effect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtration Of Liquid (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Eye Examination Apparatus (AREA)
  • Liquid Crystal (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Press Drives And Press Lines (AREA)
EP83890041A 1982-04-01 1983-03-21 Filtre-presse à bandes Expired EP0091424B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0130382A AT381238B (de) 1982-04-01 1982-04-01 Siebbandpresse
AT1303/82 1982-04-01

Publications (3)

Publication Number Publication Date
EP0091424A2 true EP0091424A2 (fr) 1983-10-12
EP0091424A3 EP0091424A3 (en) 1984-12-27
EP0091424B1 EP0091424B1 (fr) 1987-05-20

Family

ID=3510966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83890041A Expired EP0091424B1 (fr) 1982-04-01 1983-03-21 Filtre-presse à bandes

Country Status (5)

Country Link
US (1) US4492155A (fr)
EP (1) EP0091424B1 (fr)
JP (1) JPS58181499A (fr)
AT (2) AT381238B (fr)
DE (1) DE3371613D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622894A (en) * 1984-12-11 1986-11-18 Rexnord Inc. Belt press load bearing measuring means
US4681033A (en) * 1984-12-11 1987-07-21 Rexnord Inc. Drive system for belt press
US7381329B1 (en) * 2006-11-07 2008-06-03 William Harris Moss Belt press apparatus and method for high solids capture and high solids content
US7964105B2 (en) * 2008-08-07 2011-06-21 William Harris Moss Method for improving belt press dewatering
US9242191B2 (en) 2011-12-13 2016-01-26 Industrial Technology Research Institute Filtration dehydration apparatus

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130667A (en) * 1962-02-13 1964-04-28 Robert J Coffelt Serpentine fruit press
US3446139A (en) * 1966-05-10 1969-05-27 Univ California Serpentine wine press
US3459123A (en) * 1966-09-15 1969-08-05 American Sugar Fruit press
US4142461A (en) * 1974-06-07 1979-03-06 Alb. Klein Kg Device for dewatering sludge and other material containing water and solid particles
DE2431572A1 (de) * 1974-07-01 1976-01-22 Nordstjernan Rederi Ab Verfahren und vorrichtung zur abtrennung von fluessigkeit aus einer suspension
DE2506173A1 (de) * 1975-02-14 1976-08-26 Albert Baehr Filterpresse, insbesondere zur entwaesserung von schlamm in abwasserklaeranlagen, vorzugsweise siebbandpresse
DE2511787A1 (de) * 1975-03-14 1976-09-23 Rene Besnard Geraet zum ausdruecken der fluessigkeit aus schlammartigen massen
US4181616A (en) * 1975-11-17 1980-01-01 Albert Bahr Device for dewatering sludge or the like
GB1519234A (en) * 1976-05-05 1978-07-26 Hartley Simon Ltd Filter presses
US4066548A (en) * 1976-08-11 1978-01-03 Richard Henry Jones Sludge hydroextractor
JPS55126592A (en) * 1979-03-20 1980-09-30 Tooru Seki Manufacture of coallcontained sludge pellet useful for fertilizer and fuel

Also Published As

Publication number Publication date
JPS58181499A (ja) 1983-10-24
AT381238B (de) 1986-09-10
EP0091424A3 (en) 1984-12-27
EP0091424B1 (fr) 1987-05-20
US4492155A (en) 1985-01-08
DE3371613D1 (en) 1987-06-25
ATA130382A (de) 1986-02-15
ATE27245T1 (de) 1987-06-15

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