EP0101428B1 - Vorrichtung zum Entwässern von wasserhaltigen Stoffen - Google Patents

Vorrichtung zum Entwässern von wasserhaltigen Stoffen Download PDF

Info

Publication number
EP0101428B1
EP0101428B1 EP83890121A EP83890121A EP0101428B1 EP 0101428 B1 EP0101428 B1 EP 0101428B1 EP 83890121 A EP83890121 A EP 83890121A EP 83890121 A EP83890121 A EP 83890121A EP 0101428 B1 EP0101428 B1 EP 0101428B1
Authority
EP
European Patent Office
Prior art keywords
frame
rollers
frames
water
belts
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
EP83890121A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0101428A3 (en
EP0101428A2 (de
Inventor
Franz Dipl.-Ing. Krenmayr
Franz Lichtenegger
Peter Göschl
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 EP0101428A2 publication Critical patent/EP0101428A2/de
Publication of EP0101428A3 publication Critical patent/EP0101428A3/de
Application granted granted Critical
Publication of EP0101428B1 publication Critical patent/EP0101428B1/de
Expired legal-status Critical Current

Links

Images

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 device for dewatering water-containing substances, such as sludge, in which the preferably already dewatered substance is guided between circulating water-permeable belts or sieve belts via rollers, which are each mounted in two separate frames arranged essentially parallel to one another, whereby at least one frame can be adjusted in the direction of the opposite frame and the rollers of each frame have essentially the same diameter and are each arranged in one plane of the frame.
  • a screen belt press for dewatering sludges has become known, in which screen belts pass between a group of stationary support rollers and groups of movable pressure rollers, the support rollers being arranged between the groups of movable pressure rollers and the pressure rollers with one running each while the screen belt press is running Drive periodically back and forth relative to the support rollers. This results in alternating high and low pressures on the screen belts, depending on the movement of the pressure rollers.
  • the pressure rollers are each combined in an oscillating frame, which results in a direction of movement that is oblique to the plane of the pressure rollers and with an adjustment of the pressure rollers in the running direction of the sieve belts at the same time changes in the spacing transverse to the running direction of the sieve belts.
  • the rollers of the frames lying opposite one another can form a support for the sieve belts and, depending on the way in which they are set up, define a wedge-shaped gap, as a result of which fiber sludge can be drained particularly well. It is also possible to arrange the rollers of mutually opposing frames in the longitudinal direction so that the axes of the rollers in the side view result in a gap position, as a result of which frequent line contact is achieved. With such an arrangement, the enclosed sludge is sheared frequently, which results in better drainage for some types of sludge.
  • Devices of this type are usually installed downstream of a screen belt dewatering device as a post-dewatering stage, and rollers with a relatively small diameter are usually used to achieve high surface pressures. This small roller diameter can then be used to perform a high level of flexing work on the enclosed sludge when the sieve belts are guided around the rollers of neighboring frames over the greatest wrap angle, since the belt speeds of the two sieve belts rotating on different radii differ.
  • Such dewatering using a larger relative movement between the belts is more suitable for individual types of sludge than the dewatering between sieve belts, which are pressed together by rollers.
  • the invention now aims to provide a device of the type mentioned, which can be converted with little effort to different arrangements for the dewatering of sludge and in which a number of different designs of such post-drainage stages can be realized with a larger number of constant components .
  • the solution to this problem is that the rollers of at least one frame and the associated frame, regardless of the displaceability in the direction of adjustment, are essentially displaceable parallel to the second frame and transversely to the direction of attack and can be locked in position, and that the displaceability of one frame relative to the other
  • the frame is delimited transversely to the direction of attack by stops, one frame being arranged so as to be displaceable along an essentially U-shaped guideway.
  • a wedge angle can also be set if the sieve belts are passed between the rollers.
  • the adjustability of the two frames to one another also serves to adjust the distance between the adjacent sieve belts and in this way an adaptation to the required material flow can be achieved.
  • pressure can also be applied to the screen belts in order to improve the dewatering performance.
  • at least one frame is now additionally displaceable parallel to the second frame parallel to the setting direction. the roles of one frame can be shifted relative to the roles of the other frame in such a way that a position on gap is possible.
  • the adjustability of such a frame can in a simple manner, for. B. can also be carried out with the aid of a pulley.
  • the stops can ensure a defined position on the gap between opposing rollers and a defined position in which the opposing rollers lie in the same cross-sectional planes.
  • the design is preferably such that the center distances of adjacent rollers of each frame are equal to one another and preferably at most equal to twice the roller diameter.
  • the tensioning element can thus be fixed again in the new position, wherein the tensioning forces applied to the frame can be brought into effect against one another at identical angles as in the other position.
  • These clamping forces are usually applied normal to the frame level.
  • a structurally particularly simple design for the adjustment of a frame consists in that the stops for limiting the displacement movement transverse to the direction of engagement are formed by a link connected to a frame, the link path of which is essentially U-shaped and the free U-legs of which are each opposite frames are directed, in which backdrop engaging bolts or pins of the other frame.
  • a guide for the positioning movement of the two frames relative to one another being formed by the legs of the U-shaped sliding track.
  • the distance between the mutually parallel legs of the U-shaped slide track corresponds to half a center distance of adjacent rollers of a frame.
  • Both frames preferably each have at least four connection points.
  • the two frames can be set against each other by two clamping elements in such a way that a wedge results from the inlet to the outlet of the press, and due to the possible different displacement positions of a frame, two adjacent connection points for the clamping elements are advantageous at least on one side.
  • the other frame also has two pairs of connection points, an angularly rigid support can be connected to the frame, in which case the frames are kept so far apart that the sieve belts can be wrapped around the rollers. For this purpose, an extension of the sieve belts or an exchange of the sieve belts by longer sieve belts is usually necessary.
  • the angularly rigid support can be realized by two cross-sections which are essentially I-shaped near the two ends of the frame, which are screwed to the frame or secured by simple pins.
  • the frames are preferably arranged vertically and are arranged on the frames below a roll of drip cups, as a result of which water that drips out drips down onto rolls underneath and thus prevents the water that has already escaped from re-entering the fabric web to be dewatered.
  • the same drainage cups can also be used to catch escaping water if the sieve belts are passed between opposing support rollers, in which case it is necessary to adjust the drip cups to the sieve belts.
  • the design is therefore preferably such that the drip cups are arranged on a frame that can be displaced in a substantially horizontal direction and can be fixed in their displacement position and are designed with a wiper lip on their edge facing the respective opposite frame.
  • the wiping lip can be brought up to the sieve belts both in the staggered and in the position in which the opposite rollers are arranged in the same cross-sectional planes and wipe off the escaping water.
  • the drainage cups are preferably designed so that both the roller and the screen belt interact with a wiper lip.
  • the sieve belts are designated 1 and 2. Via a drive drum 3 common to both sieve belts, which is arranged near the discharge end, the sieve belts are drawn off in the direction of arrow 4 from an upstream sieve belt press and passed through a high-pressure dewatering stage 5.
  • a first rigid frame 7, which carries rollers 8, is connected to the frame 6 of the belt press.
  • the rigid frame 7 also carries the drive motor 9 for the drive drum 3, as well as a link 10 to which the movable frame 11 is articulated.
  • the backdrop 10 has a U-shaped backdrop 12, the short free leg 13 and the long free leg 14.
  • the movable frame 11 also has rollers 8 which have the same diameter as the rollers of the rigid frame 7.
  • both frames are connected to one another with the interposition of spacers 15. Both the frame 7 and the frame 11 have two pairs of connection points 16, which enable an angularly rigid fixing of the spacers 15.
  • the sieve belts 1 and 2 are guided around the rollers 8 and loop around these rollers each over a central angle of more than 180 °. Due to the different belt speed of the respective inner wire belt relative to the outer wire belt, a flexing effect is exerted on the material enclosed between the wire belts in this arrangement, which results in good drainage.
  • the draining material water is taken up by draining cups 17 each arranged below the rollers, the edge 18 of which, facing the other frame, is designed as a wiping lip.
  • the second edge which runs essentially parallel to the screen path, can be designed as a wiper lip and can be brought up to the rollers by swiveling or moving the drip cup 17.
  • the sieve belts 1 and 2 run back in the direction of arrows 20 and 21 to the sieve belt press and are again loaded with material to be dewatered in a manner not shown.
  • the deflecting rollers for these sieve belts are designated by 22, wherein individual ones of these deflecting rollers can be designed to be adjustable for adjusting the belt tension or for checking the belt path.
  • scrapers 24 are provided for the removal of the dewatered material from the sieve belts.
  • the frame 11 is raised relative to the frame 7, so that the opposite rollers 8 are now in common cross-sectional planes 25.
  • the sieve belts 1 and 2 are passed between the opposing rollers 8 and are supported by these rollers 8.
  • the frame 11 is guided via a pin 26 in the short leg 13 of the U-shaped slide track 12 and the two frames 7 and 11 are pressed against one another via clamping elements 27.
  • the tensioning elements 27 are driven by electric motors 28 and pressure transducers 29 are provided for regulating the tensioning force.
  • connection points 32 are provided offset at a distance a, this distance a corresponding to the distance b between the two legs 13 and 14 of the link.
  • the adjustment of the frame 11 parallel to the frame 7 is possible in the position of the frame 11 moved outward in the direction of the arrow 33.
  • the pin 26 can be adjusted in the height direction in the region connecting the two free legs 13 and 14 of the slide track, and a pulley block or the like can be used in a simple manner for this height adjustment.
  • the dewatering device can also be operated separately without an upstream dewatering stage. As a rule, however, at least one preliminary drainage stage is connected upstream of the drainage device described above.
  • the arrangement of the frames for the individual rollers is preferably carried out essentially perpendicularly, so that the frame or frames in the screen are lowered or raised relative to the frame or frames of the other screens. However, it is easily possible to operate the arrangement in an inclined or horizontal position of the frame or the plane in which the bearings for the press rolls are located.
  • compression springs can be used in a known manner, it being possible to achieve a pressure which increases with the thickness of the sludge cake.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtration Of Liquid (AREA)
  • Treatment Of Sludge (AREA)
EP83890121A 1982-08-13 1983-07-22 Vorrichtung zum Entwässern von wasserhaltigen Stoffen Expired EP0101428B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0309782A AT380865B (de) 1982-08-13 1982-08-13 Vorrichtung zum entwaessern von wasserhaltigen stoffen
AT3097/82 1982-08-13

Publications (3)

Publication Number Publication Date
EP0101428A2 EP0101428A2 (de) 1984-02-22
EP0101428A3 EP0101428A3 (en) 1985-07-24
EP0101428B1 true EP0101428B1 (de) 1987-03-25

Family

ID=3545259

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83890121A Expired EP0101428B1 (de) 1982-08-13 1983-07-22 Vorrichtung zum Entwässern von wasserhaltigen Stoffen

Country Status (6)

Country Link
US (1) US4557833A (ja)
EP (1) EP0101428B1 (ja)
JP (1) JPS5947094A (ja)
AT (1) AT380865B (ja)
CA (1) CA1233359A (ja)
DE (1) DE3370458D1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT390785B (de) * 1985-03-15 1990-06-25 Voest Alpine Ag Verfahren und einrichtung zur erzielung eines hohen trockengehaltes bei der entwaesserung von schlaemmen
US5169527A (en) * 1988-04-07 1992-12-08 Roediger Pittsburgh, Inc. Liquid extracting device and associated method
JPH0646641B2 (ja) * 1988-04-18 1994-06-15 三洋電機株式会社 半導体装置の組立装置及びその測定方法
DE4213843A1 (de) * 1992-04-28 1993-11-04 Klein Alb Gmbh Co Kg Vorrichtung zum herstellen von saft aus einer fruchtmaische
DE4341580C1 (de) * 1993-12-07 1995-02-16 Bellmer Gmbh & Co Kg Geb Vorrichtung zur Entwässerung von Suspensionen
DE19627884A1 (de) * 1996-07-11 1998-01-15 Petkus Wutha Sortier Und Aufbe Einrichtung zur Entwässerung von Schlämmen und weiteren Suspensionen mittels einer Bandfilterpresse
US7964105B2 (en) * 2008-08-07 2011-06-21 William Harris Moss Method for improving belt press dewatering

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US157402A (en) * 1874-12-01 Improvement in water-coolers
GB925872A (en) * 1958-11-14 1963-05-08 Ozonair Eng Co Ltd Improvements in or relating to gas filters
DE1627911A1 (de) * 1967-01-13 1970-10-29 Hartmann Dr Ing Otto Presse zum Entsaften von Fruechten od.dgl.
US3537584A (en) * 1968-12-05 1970-11-03 Dryden Paper Co Ltd Apparatus for removing solids from liquid suspensions thereof
US3581876A (en) * 1969-07-07 1971-06-01 Milroy A Keith Bag flattening conveyors
DE1964950A1 (de) * 1969-12-24 1971-07-15 Voith Gmbh J M Bandfilter zum Entwaessern von Suspensionen,insbesondere von bei der Abwasseraufbereitung anfallendem Klaerschlamm
US3894486A (en) * 1972-08-28 1975-07-15 Andritz Ag Maschf Device for obtaining a selectable dehydrating pressure in dehydrating machines
DE2438144A1 (de) * 1974-08-08 1976-02-19 Rittershaus & Blecher Gmbh Siebbandpresse, insbesondere zur entwaesserung von schlamm in abwaesserklaeranlagen
GB1512960A (en) * 1974-11-23 1978-06-01 Sulzer Ag Method and apparatus for dewatering of slurries etc
US4159947A (en) * 1976-05-17 1979-07-03 Brooks Larry L Dewatering system
US4066548A (en) * 1976-08-11 1978-01-03 Richard Henry Jones Sludge hydroextractor
AU525535B2 (en) * 1978-05-10 1982-11-11 Parmentier, A.H. Filter press plate + frame
DE2823409A1 (de) * 1978-05-29 1979-12-13 Rittershaus & Blecher Gmbh Siebbandpresse zur entwaesserung von schlaemmen
AT359933B (de) * 1979-01-04 1980-12-10 Voest Alpine Ag Vorrichtung zum entwaessern von wasserhaltigen stoffen
FR2518422B1 (fr) * 1981-12-18 1988-04-08 Voest Alpine Ag Dispositif pour deshydrater des substances aqueuses

Also Published As

Publication number Publication date
US4557833A (en) 1985-12-10
CA1233359A (en) 1988-03-01
EP0101428A3 (en) 1985-07-24
EP0101428A2 (de) 1984-02-22
JPS619119B2 (ja) 1986-03-19
ATA309782A (de) 1985-12-15
AT380865B (de) 1986-07-25
DE3370458D1 (en) 1987-04-30
JPS5947094A (ja) 1984-03-16

Similar Documents

Publication Publication Date Title
DE2311909C3 (de) Vorrichtung zur kontinuierlichen Druckbehandlung von Bahnen
DE3343941C2 (de) Entwässerungsmaschine für Zellstoff, Schlämme oder dergleichen Fasermaterial
EP0283870B1 (de) Verfahren zum Entwässern von Filterkuchen und Vorrichtung zur Durchführung des Verfahrens
DE2616517A1 (de) Presse fuer die entwaesserung von stoffen o.dgl. fasermaterial
EP0101428B1 (de) Vorrichtung zum Entwässern von wasserhaltigen Stoffen
DE2420029A1 (de) Einrichtung zum kontinuierlichen herstellen von spanplatten, faserplatten oder dergleichen
DE2505989C3 (de) Kontinuierlich arbeitende Presse
EP0155658B1 (de) Doppelbandpresse
DE2342618B1 (de) Torfpresse
EP0013548B1 (de) Vorrichtung zum Entwässern von wasserhaltigen Stoffen
DE3113399A1 (de) Ausrichtvorrichtung fuer die kanten eines aus falzprodukten bestehenden schuppenstroms
DE2911760C2 (de) Bandfilterpresse
DE3823966C2 (de) Vorrichtung zum Führen der Siebe einer Doppelsiebpartie einer Papier- oder Kartonmaschine
DE3046525A1 (de) "kontinuierlich arbeitende presse"
DE2049324B2 (de) Kontinuierliche Presse, insbesondere zum Auspressen von Früchten
DE2100964C3 (de) Bahnbildungszone einer Papiermaschine
DE2635010A1 (de) Trockenpresse mit endlosen, seitlich abnehmbaren baendern
DE2644976A1 (de) Scheidepresse
DE3221435C2 (de) Siebbandpresse zum Entwässern von eingedicktem Klärschlamm
AT85822B (de) Vorrichtung zum Entwässern von Stoffbahnen.
DE2140585A1 (de) Speckpresse
DE4027946C2 (de) Verfahren und Vorrichtung zum Entwässern von Filterkuchen
DE69119326T2 (de) Blattbildende Vorrichtung für eine Papiermaschine
EP2210977A1 (de) Vorrichtung zur Behandlung, insbesondere zur Unterdruck-Beaufschlagung, des in einer Anlage zur Papiererzeugung vorgesehenen, im Umlauf bewegten mindestens einen Siebbandes bzw. Filzbandes
DE7409841U (de) Vorrichtung zum entwaessern von suspensionen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19850916

17Q First examination report despatched

Effective date: 19860227

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI NL

REF Corresponds to:

Ref document number: 3370458

Country of ref document: DE

Date of ref document: 19870430

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19940731

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950628

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19960201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960722

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960722

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19980701

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19990630

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990701

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010330

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010501