EP0101428A2 - Dispositif pour extraire l'eau des masses humides - Google Patents

Dispositif pour extraire l'eau des masses humides Download PDF

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Publication number
EP0101428A2
EP0101428A2 EP83890121A EP83890121A EP0101428A2 EP 0101428 A2 EP0101428 A2 EP 0101428A2 EP 83890121 A EP83890121 A EP 83890121A EP 83890121 A EP83890121 A EP 83890121A EP 0101428 A2 EP0101428 A2 EP 0101428A2
Authority
EP
European Patent Office
Prior art keywords
frame
rollers
frames
link
opposite
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
EP83890121A
Other languages
German (de)
English (en)
Other versions
EP0101428B1 (fr
EP0101428A3 (en
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/fr
Publication of EP0101428A3 publication Critical patent/EP0101428A3/de
Application granted granted Critical
Publication of EP0101428B1 publication Critical patent/EP0101428B1/fr
Expired legal-status Critical Current

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    • 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 sludges, in which the preferably already dewatered substance is guided between surrounding water-permeable belts or sieve belts via rollers which are mounted in at least two separate frames arranged essentially parallel to one another. wherein at least one frame can be set in the direction of the opposite frame.
  • 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 employed, 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 adjacent frames over the greatest wrap angle, since the belt speeds of the two sieve belts rotating on different radii differ. Such drainage using a larger relative movement between the belts is for individual types of sludge are more suitable than 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 invention consists in that at least some of the rollers of at least one frame, preferably all the rollers of a frame together with the frame, can be displaced essentially parallel to the second frame and transversely to the direction of attack and can be locked in their position ( are).
  • 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 an adaptation to the required material flow can be achieved in this way.
  • pressure can also be applied to the screen belts in order to improve the dewatering performance. Because at least one frame is now additionally displaceable parallel to the second direction parallel to the second frame, the rollers of one frame can be moved relative to the rollers of the other frame in such a way that a position on a gap is possible.
  • rollers of at least one frame can be offset relative to the rollers of other frames means that further adaptation to requirements can be achieved, since some of the rollers of the dewatering device are now in a gap and another portion of the rollers are opposite the rollers Frame can be arranged opposite. For such an adjustment, however, the frame itself can be adjusted relative to opposite frames with all the roles fixed on this frame.
  • the adjustability of such a frame can be easily e.g. can also be carried out using a pulley. It is of advantage if the rollers of each frame have essentially the same diameter and are each arranged in one plane of the frame and the displaceability of one frame relative to the other frame is limited by stops at right angles to the direction of attack.
  • the lifting, in particular the lowering of the frame is extremely simple in this way, since the lowering movement can be carried out by gravity until the stop becomes effective when the two frames are arranged essentially vertically. Above all, 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 all the rollers of all frames have the same diameter and that the center distances of adjacent rollers of each frame are the same and preferably equal to at most twice the roller diameter.
  • an adjustment can be achieved in which all the rollers are opposite frames opposite each other and in this way form pairs of rollers, as well as a position in which the rollers are centered on one side of the screen belt between the rollers lie on the other side of the screen belt, so that the number of line pressing points is increased from n / 2, where n is the total number of dewatering rolls, to n-1.
  • Such an easily releasable connection of the tensioning elements is also for the arrangement of the two frames between the rollers sieve belts passed through it is advantageous if a frame is moved from the position in which the opposite rollers are arranged in the same cross-sectional planes to a position on a gap.
  • the design is such that the opposing frames have connection points for at least one, preferably resilient, tensioning element, with at least one frame having two connection points for the releasable fixing of a tensioning element in the longitudinal direction of the frame in each case a distance corresponding to the displacement path defined by the stops are arranged offset.
  • 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 slide path of which runs essentially in a U-shape and the free U-legs of which in each case 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 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 there is a wedge 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.
  • 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 draining cups can also be used advantageously 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 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 stripping lip can be brought up to the sieve belts both in the staggered position and in the position in which the opposing rollers are arranged in the same cross-sectional planes, and stripping off the escaping water.
  • the drainage cups are preferably designed so that both the roller and the screen belt interact with a wiper lip.
  • FIG. 1 shows a first arrangement of the frames of a post-dewatering stage of a belt press
  • FIG. 2 shows a second position of the frames of the same post-dewatering stage
  • FIG. 3 shows a further position of the frames of the same post-dewatering stage.
  • the sieve belts are designated 1 and 2.
  • drive drum 3 which is arranged near the discharge end, the Strainers in the sense of arrow 4 are withdrawn from an upstream sieve belt press and passed through a high-pressure dewatering stage 5.
  • 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 in the arrangement according to FIG.
  • 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 inner sieve belt relative to the outer sieve belt, in this arrangement a flexing effect is exerted on the material enclosed between the sieve belts, 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 wiping lip and can be brought up to the rollers by swiveling or moving the drip cup 17. It can be stripped from the rollers themselves with these second scraper lips.
  • the drip cups 17 are connected to the respective frames 7 and 11 in the direction of the double arrow 19 so as to be adjustable in order to bring the scraper lips 18 towards the sieve belts and the like To allow roles in the arrangements of FIGS. 2 and 3.
  • 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 opposing 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 by 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.
  • FIG. 3 The lowered position, in which the rollers 8 of the frame 11 are adjusted to a gap relative to the rollers 8 of the frame 7, is shown in FIG. 3.
  • the sieve belts 1 and 2 are passed through between the opposing rollers of opposing frames and the tensioning elements 27 are now fixed at the connection points 32 by means of the pins 30.
  • the frame 11 is now guided in the direction of the frame 7 in the longer leg 14 of the slide track 12, so that the two frames 7 and 11 can be brought closer together in this position on gap than in the position shown in Fig. 2, in which the rollers 8 opposite frames are each arranged in the same cross-sectional planes 25.
  • 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 area connecting the two free legs 13 and 14 of the slide track, and a pulley block or the like can be easily used for this height adjustment. be used.
  • the dewatering device can also be operated separately without an upstream dewatering stage. As a rule, however, at least one pre-dewatering stage is connected upstream of the dewatering 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 Dispositif pour extraire l'eau des masses humides Expired EP0101428B1 (fr)

Applications Claiming Priority (2)

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

Publications (3)

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

Family

ID=3545259

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83890121A Expired EP0101428B1 (fr) 1982-08-13 1983-07-22 Dispositif pour extraire l'eau des masses humides

Country Status (6)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0194996A2 (fr) * 1985-03-15 1986-09-17 SGP-VA Energie- und Umwelttechnik Gesellschaft m.b.H. Procédé et dispositif pour l'obtention d'une teneur en matière sèche élevée dans la déshydratation de boues
EP0567721A1 (fr) * 1992-04-28 1993-11-03 Alb. Klein GmbH & Co. KG Dispositif pour l'extraction de jus à partir de moût
DE19627884A1 (de) * 1996-07-11 1998-01-15 Petkus Wutha Sortier Und Aufbe Einrichtung zur Entwässerung von Schlämmen und weiteren Suspensionen mittels einer Bandfilterpresse

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE4341580C1 (de) * 1993-12-07 1995-02-16 Bellmer Gmbh & Co Kg Geb Vorrichtung zur Entwässerung von Suspensionen
US7964105B2 (en) * 2008-08-07 2011-06-21 William Harris Moss Method for improving belt press dewatering

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1627911A1 (de) * 1967-01-13 1970-10-29 Hartmann Dr Ing Otto Presse zum Entsaften von Fruechten od.dgl.
DE1964950A1 (de) * 1969-12-24 1971-07-15 Voith Gmbh J M Bandfilter zum Entwaessern von Suspensionen,insbesondere von bei der Abwasseraufbereitung anfallendem Klaerschlamm
FR2281216A1 (fr) * 1974-08-08 1976-03-05 Rittershaus & Blecher Gmbh Presse a bandes tamiseuses, en particulier pour deshydrater les boues dans les installations de decantation des eaux residuaires
FR2291785A1 (fr) * 1974-11-23 1976-06-18 Sulzer Ag Procede pour eliminer l'eau de suspension et appareil pour sa mise en oeuvre
DE2823409A1 (de) * 1978-05-29 1979-12-13 Rittershaus & Blecher Gmbh Siebbandpresse zur entwaesserung von schlaemmen
EP0013548A1 (fr) * 1979-01-04 1980-07-23 VOEST-ALPINE Aktiengesellschaft Dispositif pour la déshydratation de matières contenant de l'eau
FR2518422A1 (fr) * 1981-12-18 1983-06-24 Voest Alpine Ag Dispositif pour deshydrater des substances aqueuses

Family Cites Families (8)

* 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
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
US3894486A (en) * 1972-08-28 1975-07-15 Andritz Ag Maschf Device for obtaining a selectable dehydrating pressure in dehydrating machines
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1627911A1 (de) * 1967-01-13 1970-10-29 Hartmann Dr Ing Otto Presse zum Entsaften von Fruechten od.dgl.
DE1964950A1 (de) * 1969-12-24 1971-07-15 Voith Gmbh J M Bandfilter zum Entwaessern von Suspensionen,insbesondere von bei der Abwasseraufbereitung anfallendem Klaerschlamm
FR2281216A1 (fr) * 1974-08-08 1976-03-05 Rittershaus & Blecher Gmbh Presse a bandes tamiseuses, en particulier pour deshydrater les boues dans les installations de decantation des eaux residuaires
FR2291785A1 (fr) * 1974-11-23 1976-06-18 Sulzer Ag Procede pour eliminer l'eau de suspension et appareil pour sa mise en oeuvre
DE2823409A1 (de) * 1978-05-29 1979-12-13 Rittershaus & Blecher Gmbh Siebbandpresse zur entwaesserung von schlaemmen
EP0013548A1 (fr) * 1979-01-04 1980-07-23 VOEST-ALPINE Aktiengesellschaft Dispositif pour la déshydratation de matières contenant de l'eau
FR2518422A1 (fr) * 1981-12-18 1983-06-24 Voest Alpine Ag Dispositif pour deshydrater des substances aqueuses

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0194996A2 (fr) * 1985-03-15 1986-09-17 SGP-VA Energie- und Umwelttechnik Gesellschaft m.b.H. Procédé et dispositif pour l'obtention d'une teneur en matière sèche élevée dans la déshydratation de boues
EP0194996A3 (en) * 1985-03-15 1987-11-25 Voest-Alpine Aktiengesellschaft Method and apparatus for obtaining a high content of solid matter in the dewatering of sludges
EP0567721A1 (fr) * 1992-04-28 1993-11-03 Alb. Klein GmbH & Co. KG Dispositif pour l'extraction de jus à partir de moût
DE19627884A1 (de) * 1996-07-11 1998-01-15 Petkus Wutha Sortier Und Aufbe Einrichtung zur Entwässerung von Schlämmen und weiteren Suspensionen mittels einer Bandfilterpresse

Also Published As

Publication number Publication date
US4557833A (en) 1985-12-10
CA1233359A (fr) 1988-03-01
EP0101428B1 (fr) 1987-03-25
EP0101428A3 (en) 1985-07-24
DE3370458D1 (en) 1987-04-30
JPS5947094A (ja) 1984-03-16
ATA309782A (de) 1985-12-15
AT380865B (de) 1986-07-25
JPS619119B2 (fr) 1986-03-19

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