EP0181315A2 - Rouleau pour l'extraction des liquides dans les filtres-presses à bande - Google Patents

Rouleau pour l'extraction des liquides dans les filtres-presses à bande Download PDF

Info

Publication number
EP0181315A2
EP0181315A2 EP85890208A EP85890208A EP0181315A2 EP 0181315 A2 EP0181315 A2 EP 0181315A2 EP 85890208 A EP85890208 A EP 85890208A EP 85890208 A EP85890208 A EP 85890208A EP 0181315 A2 EP0181315 A2 EP 0181315A2
Authority
EP
European Patent Office
Prior art keywords
drum
channel
internals
drainage
rotation
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
EP85890208A
Other languages
German (de)
English (en)
Other versions
EP0181315B1 (fr
EP0181315A3 (en
Inventor
Franz Lichtenegger
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.)
SGP-VA ENERGIE- und UMWELTTECHNIK GESELLSCHAFT MB
Original Assignee
Sgp-Va Energie- und Umwelttechnik GmbH
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 Sgp-Va Energie- und Umwelttechnik GmbH, Voestalpine AG filed Critical Sgp-Va Energie- und Umwelttechnik GmbH
Publication of EP0181315A2 publication Critical patent/EP0181315A2/fr
Publication of EP0181315A3 publication Critical patent/EP0181315A3/de
Application granted granted Critical
Publication of EP0181315B1 publication Critical patent/EP0181315B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B30B9/241—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 co-operating with a drum or roller

Definitions

  • the invention relates to a drainage drum for sieve belt presses rotatably mounted about an axis, the casing of which is provided with openings for the passage of the squeezed liquid.
  • the dewatering drum is wrapped by the sieve belt at a wrap angle of more than 180 ° C.
  • the removal of the squeezed water is difficult.
  • the squeezed water enters the drum interior through the perforations of the drum and is sucked back into the substance to be dewatered in the lower region of the drum. It is known to use collecting cups in the drum.
  • the invention has for its object to ensure the discharge of the squeezed liquid with certainty, and consists essentially in that approximately axially extending groove-like on the inside of the drum shell Internals are provided which are open to the drum shell and closed in the direction of the drum interior and open outwards on at least one end wall of the drum. Through these trough-like fittings, the water that is squeezed out is collected and discharged immediately after it has passed through the perforations in the drum casing.
  • the design according to the invention is expediently such that at least the front boundary walls of the channel-like internals in the direction of rotation of the drum connect to the drum casing. Even if these front boundary walls leak from the drum shell, a considerable drainage effect is achieved.
  • the invention preferably adjoins the edge of the front wall in the direction of rotation of the drum of the channel-like internals an unbroken wall part directed against the direction of rotation.
  • an unbroken wall part of the wall Through this unbroken part of the wall, a channel is formed which also axially discharges the water when the front boundary wall of the channel in question is already below the horizontal when the drum rotates, so that the drainage effect is thereby improved.
  • gravity causes the water to flow out through the sieve belt, so that no appreciable amounts of liquid can get into the drum.
  • This non-interrupted wall part directed against the direction of rotation can be formed by the drum itself if the front wall part of the channel-shaped internals in the direction of rotation adjoins the drum wall in a tight or largely tight manner.
  • the edge of the boundary wall of the channel-like internals which is at the front in the direction of rotation of the drum, has a rim protruding counter to the direction of rotation, so that the effect that a channel leading the water to the drum end face is formed, is also fully guaranteed if the front wall of the channel-like internals in the direction of rotation does not lie close to the drum jacket.
  • the rear wall of the gutter-like internals in the direction of rotation does not have to rest against the drum, since no water accumulates in the gutter-like internals here.
  • the drum shell expediently has openings only in the regions of the channel-like internals which are open to the drum shell, while it is of unbroken design in the regions of the front and rear boundary walls of the channel-like internals.
  • This covers the areas in which the front and rear boundary walls of the channel-like internals lie against the drum or lie in the region of the drum, so that no water can get into the interior of the drum between these boundary walls of the adjacent channel-like internals. Apart from this, this represents a cost saving since fewer holes have to be drilled in the drum jacket.
  • the channel-like internals expediently have a cross-section that tapers against the direction of rotation of the drum, which takes into account the fact that the water in the channel-like internals only accumulates on the front side in the direction of rotation.
  • the arrangement is expediently such that at least one end wall of the drum has openings in areas adjoining the drum casing, through which at least a part of the cross section of the channel-like internals protrudes outwards, so that the water from the inside of the drum with certainty is dissipated.
  • the gutter-like internals are divided in the longitudinal direction into at least two parts, the arrangement preferably being such that the gutter-like internals consist of a first part, which delimits the larger cross-sectional part of the gutter, and a second part, which limited tapered cross-sectional portion of the trough exist, the second part overlapping the first part inside the trough, that the first part is passed through an opening in the end wall of the drum, that the largest cross section of the second part does not have the largest dimension of the opening in the end wall exceeds and that both parts are screwed to the front wall from the outside.
  • the installation of the channel-like internals in the drum is made considerably easier.
  • the first part can simply be inserted through the recesses in the end wall or end walls. Since the second part has a smaller cross-section than the largest dimension of the opening in the end wall or end walls, it can be subsequently inserted and brought into position, whereupon both parts are screwed from the end wall from the outside.
  • a tight seal to the drum shell is not necessary, since the first part of the channel itself forms the outflow channel for the water due to its counter-rotating rim, and the second part, as already mentioned, does not have to connect tightly to the drum shell.
  • the connection of these two parts to one another does not have to be tight, since the second part overlaps the first part and the water flows in the overlapping direction from the first part to the second part.
  • the channel-like internals can be arranged horizontally or inclined.
  • a horizontal arrangement that is, an arrangement in the axial direction of the drum, is simpler to manufacture. In this case it is advisable Provide openings on both end walls of the drum through which the water can drain.
  • FIG. 1 shows an end view of the drum in the direction of arrow I of FIG. 2
  • FIG. 2 shows a longitudinal section through the drum along line II of FIG. 1
  • FIG. 3 shows a partial view corresponding to FIG. 1 on a larger scale.
  • the drum 1 has a jacket 2 and end walls 3.
  • the drum is rotatably supported about the axis 4.
  • trough-like internals 5 are inserted, the cross section of which tapers against the direction of rotation indicated by the arrow 6.
  • the channel-like fittings 5 are composed of two parts, namely an approximately angled at right angles to the sheet metal part 7, which the larger cross section of the channel-like fittings 5 limited, and an oblique B leak wall 8, which defines the tapered cross-sectional portion of the channel-like fittings. 5
  • the edge of the drum jacket 2 of the boundary wall 9 of the channel-like internals 5 formed by the sheet metal part 7 and facing in the direction of rotation has a rim 10 directed against the direction of rotation 6.
  • the assembly can be done as follows.
  • the sheet metal wall 8 overlaps the sheet metal part 7, so that the water can flow off via the overlap point 13 when rotating in the direction of arrow 6.
  • the sheet metal part 7, which carries the front boundary wall 9 in the direction of rotation, is pushed through the openings 12 in the end walls 3 and protrudes outwards from the openings 12.
  • the sloping sheet metal wall 8 has a cross-sectional length which is smaller than the diagonal of the openings 12, so that this sheet metal wall 8 can be pushed through the openings 12.
  • the sheet metal wall 8 is then tilted into the position shown in FIG. 3.
  • This oblique sheet metal wall 8 extends from one end wall to the other and has tabs 14 which protrude through the openings 12 in the end walls 3.
  • Angle pieces 15 are fastened or screwed or welded to the end walls 3.
  • the sheet metal parts 7 and the tabs 14 are then screwed to the flanges 16 and the angle pieces 15.
  • the rims 10 of the front boundary wall 9 of the channel-like internals 5 in the direction of rotation are merely held in their position by the screw connection with the angle pieces 15, but do not have to lie sealingly on the drum casing 2.
  • the sheet metal wall 8 is only held in its position, but also does not have to bear sealingly against the drum shell 2, since in region b, in which the boundary walls 8 and 9 meet, the drum shell has no openings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
EP19850890208 1984-11-09 1985-09-05 Rouleau pour l'extraction des liquides dans les filtres-presses à bande Expired - Lifetime EP0181315B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0355784A AT381239B (de) 1984-11-09 1984-11-09 Entwaesserungstrommel fuer siebbandpressen
AT3557/84 1984-11-09

Publications (3)

Publication Number Publication Date
EP0181315A2 true EP0181315A2 (fr) 1986-05-14
EP0181315A3 EP0181315A3 (en) 1987-12-16
EP0181315B1 EP0181315B1 (fr) 1991-01-02

Family

ID=3552154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850890208 Expired - Lifetime EP0181315B1 (fr) 1984-11-09 1985-09-05 Rouleau pour l'extraction des liquides dans les filtres-presses à bande

Country Status (3)

Country Link
EP (1) EP0181315B1 (fr)
AT (1) AT381239B (fr)
DE (1) DE3581055D1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE530782C (de) * 1928-02-11 1931-08-01 St Annes Board Mill Co Ltd Drehbares Saugtrommelfilter zur Herstellung von Papier, Pappe, Karton o. dgl. mit axial gerichteten Randkanaelen
US1930128A (en) * 1930-10-06 1933-10-10 Dorr Co Inc Rigid filter medium
FR894669A (fr) * 1942-04-02 1945-01-03 Tambour filtrant à marche continue avec secteurs de filtrage indépendants les uns des autres
DE2510010A1 (de) * 1975-03-07 1976-09-16 Albert Baehr Verfahren und vorrichtung zum entwaessern von schlamm oder aehnlichen substanzen, insbesondere von in abwasserklaeranlagen oder dergleichen anfallendem schlamm durch filtration
GB2026334A (en) * 1978-05-30 1980-02-06 Hynnae V Filter belt press
EP0013549A1 (fr) * 1979-01-08 1980-07-23 VOEST-ALPINE Aktiengesellschaft Installation de déshydratation
DE3303967A1 (de) * 1982-02-16 1983-08-25 Von Roll AG, 4563 Gerlafingen Bandfilterpresse zum filtrieren einer truebe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE530782C (de) * 1928-02-11 1931-08-01 St Annes Board Mill Co Ltd Drehbares Saugtrommelfilter zur Herstellung von Papier, Pappe, Karton o. dgl. mit axial gerichteten Randkanaelen
US1930128A (en) * 1930-10-06 1933-10-10 Dorr Co Inc Rigid filter medium
FR894669A (fr) * 1942-04-02 1945-01-03 Tambour filtrant à marche continue avec secteurs de filtrage indépendants les uns des autres
DE2510010A1 (de) * 1975-03-07 1976-09-16 Albert Baehr Verfahren und vorrichtung zum entwaessern von schlamm oder aehnlichen substanzen, insbesondere von in abwasserklaeranlagen oder dergleichen anfallendem schlamm durch filtration
GB2026334A (en) * 1978-05-30 1980-02-06 Hynnae V Filter belt press
EP0013549A1 (fr) * 1979-01-08 1980-07-23 VOEST-ALPINE Aktiengesellschaft Installation de déshydratation
DE3303967A1 (de) * 1982-02-16 1983-08-25 Von Roll AG, 4563 Gerlafingen Bandfilterpresse zum filtrieren einer truebe

Also Published As

Publication number Publication date
ATA355784A (de) 1986-02-15
DE3581055D1 (de) 1991-02-07
AT381239B (de) 1986-09-10
EP0181315B1 (fr) 1991-01-02
EP0181315A3 (en) 1987-12-16

Similar Documents

Publication Publication Date Title
DE3420157C1 (de) Vorrichtung zum Entfernen von Rechen- und/oder Siebgut aus in einem Gerinne stroemender Fluessigkeit
DE3002613C2 (de) Vorrichtung zum Waschen von Zellstoff
DE2741710C2 (de) Vorrichtung zum Trennen von Feststoffen und Flüssigkeiten aus einer Suspension
EP1610881B1 (fr) Dispositif permettant de retirer un produit de filtrage d'un liquide
DE2526657C3 (de) Drucksichter für Fasersuspensionen
EP0013549B1 (fr) Installation de déshydratation
DE19744524C2 (de) Siebvorrichtung für in einem Zulaufrohr ankommendes Abwasser
EP0040425B1 (fr) Dispositif pour évacuer des matériaux flottants et débris d'un égout, notamment d'une installation d'épuration
DE2127053C3 (de) Vorrichtung zum Reinigen von Abwasser, insbesondere von in Regenauslässen aus einer Mischwasserkanalisation abgeleitetem Regenwasser
DE2902432C2 (de) Eindickfilter
DE20214115U1 (de) Siebmaschine
DE2751091A1 (de) Vorrichtung zum abtrennen von fluessigkeit aus einem schlammartigen brei oder gemenge
DE1461399C3 (de) Drehfilter
DE3303967C2 (fr)
DE3102303A1 (de) Siebtrommel, insbesondere fuer siebzentrifugen
DE2046278A1 (de) Zentrifugaltrennvornchtung fur Abwasser
DE2237465B2 (de) Durchlaufwaschmaschine
EP0181315B1 (fr) Rouleau pour l'extraction des liquides dans les filtres-presses à bande
DE4314673C1 (de) Vorrichtung zum Entfernen von Abscheidegut aus einer Flüssigkeit
DE3432811C2 (de) Drehsieb
DE60007863T2 (de) Filtriervorrichtung zur Fest-/Flüssigtrennung
DE3028541A1 (de) Vorrichtung zum entfernen von schwemmgut und feststoffen aus zulaufgerinnen, insbesondere von klaeranlagen
DE60306063T2 (de) Siebvorrichtung
DE19511008A1 (de) Siebanordnung für kreisförmige Regenwasserentlastungsanlagen
AT525727B1 (de) Pressschneckenseparator

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

Kind code of ref document: A2

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

17P Request for examination filed

Effective date: 19880211

17Q First examination report despatched

Effective date: 19890712

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

ITF It: translation for a ep patent filed

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

REF Corresponds to:

Ref document number: 3581055

Country of ref document: DE

Date of ref document: 19910207

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SGP-VA ENERGIE- UND UMWELTTECHNIK GESELLSCHAFT M.B

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
NLXE Nl: other communications concerning ep-patents (part 3 heading xe)

Free format text: IN PAT.BUL.09/91,PAGES 1168 AND 1204:CORR.:SGP-VA ENERGIE-UND UMWELTTECHNIK GESELLSCHAFT M.B.H.

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

Ref country code: GB

Effective date: 19910905

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

Ref country code: SE

Effective date: 19910906

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

Ref country code: LU

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

Effective date: 19910930

Ref country code: BE

Effective date: 19910930

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
BECN Be: change of holder's name

Effective date: 19910102

BERE Be: lapsed

Owner name: SGP-VA ENERGIE- UND UMWELTTECHNIK G.M.B.H.

Effective date: 19910930

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920529

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: DE

Payment date: 19930811

Year of fee payment: 9

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

Ref country code: CH

Payment date: 19930812

Year of fee payment: 9

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

Ref country code: NL

Payment date: 19930930

Year of fee payment: 9

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

Ref country code: LI

Effective date: 19940930

Ref country code: CH

Effective date: 19940930

EUG Se: european patent has lapsed

Ref document number: 85890208.3

Effective date: 19920408

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

Ref country code: NL

Effective date: 19950401

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

Effective date: 19950601