WO2002047788A1 - Filtre-presse dote d'un dispositif de vidage de gateau - Google Patents

Filtre-presse dote d'un dispositif de vidage de gateau Download PDF

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Publication number
WO2002047788A1
WO2002047788A1 PCT/EP2001/013381 EP0113381W WO0247788A1 WO 2002047788 A1 WO2002047788 A1 WO 2002047788A1 EP 0113381 W EP0113381 W EP 0113381W WO 0247788 A1 WO0247788 A1 WO 0247788A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
filteφresse
filteφlatten
rod
filter cloth
Prior art date
Application number
PCT/EP2001/013381
Other languages
German (de)
English (en)
Inventor
Richard Van Egdom
Original Assignee
Outokumpu Oyj
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 Outokumpu Oyj filed Critical Outokumpu Oyj
Priority to AU2002219121A priority Critical patent/AU2002219121A1/en
Publication of WO2002047788A1 publication Critical patent/WO2002047788A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12—Filter presses, i.e. of the plate or plate and frame type
    • B01D25/164—Chamber-plate presses, i.e. the sides of the filtering elements being clamped between two successive filtering plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12—Filter presses, i.e. of the plate or plate and frame type
    • B01D25/172—Plate spreading means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/32—Removal of the filter cakes
    • B01D25/34—Removal of the filter cakes by moving, e.g. rotating, the filter elements
    • B01D25/346—Removal of the filter cakes by moving, e.g. rotating, the filter elements by vibration

Definitions

  • the invention relates to a filter press for the filtration of suspensions with a package of vertically oriented filter plates, each of which includes a filter chamber between them in pairs, which is delimited on both sides by a filter cloth, which, starting from the lower ends of the filter plates, covers the filter mirror via a Above the filter plate arranged crossbar is guided, which is movable in the vertical direction when adjacent Filte ⁇ latten are transferred from a closed position in which the suspension can be inserted into the sealed filter chamber to an open position in which the Filte ⁇ latten have a drainage distance to each other in the horizontal direction and the filter cloth assumes a roof shape, the filter press further being provided with a discharge device for filter cakes adhering to the filter cloth, with which the filter cloth can be moved in an oscillating manner.
  • Such a well-known Filte ⁇ resse has a vibrating device, with which the cross members for deflecting the filter cloths, in which a so-called spreading cloth arrangement is present, are moved either individually or together in an oscillating vertical direction. Because of these shaking movements, the filter cake should be detached from the filter cloth and fall into a collecting device arranged below the filter press. In practice, however, it has been found that a detachment of the filter cake cannot be guaranteed with absolute certainty with every filter cake quality, so that filter cake residues often adhere to the filter cloth. This can disturb the proper course of the next filtration process, but at least the capacity of the filter chamber is restricted.
  • the invention has for its object to develop a Filte ⁇ resse with a filter cake dropping device so that a very reliable detachment of the filter cake from the filter cloth can be achieved in a simple manner, so that a fully automatic operation of the Filte ⁇ resse is ensured.
  • this object is achieved in that the crossbar is oscillating in the horizontal direction.
  • the two halves of the filter cloth spread out in a roof shape are alternately brought into an even greater inclined position by the horizontal movement, so that they are perpendicular to the surface of the filter cloth standing component of the weight of the filter cake is increased and favors the dropping of the filter cake.
  • the oscillating movement in the horizontal direction especially in the dead centers, also causes a large acceleration in the horizontal direction on the filter cake. A large proportion of this horizontal acceleration, as a component oriented vertically to the surface of the filter cloth, favors the detachment of the filter cake from the filter cloth. Even a small number of lifting movements is sufficient to ensure that the filter press according to the invention is reliable
  • the stroke of the horizontal movement essentially corresponds to the emptying distance, so that in this case the maximum possible inclined position can alternately be achieved by half of the roof-shaped filter cloth.
  • the horizontal movement in the dead centers is in each case limited by a stop element.
  • a particularly great acceleration acts on the filter cake in the horizontal direction, so that the safety against dropping can be further increased.
  • the cross members of the Filte ⁇ latten at least one section of the Filte ⁇ resse are simultaneously movable. As a result, the time required for throwing off the filter cake can be significantly reduced compared to dropping off just a single filter cloth.
  • the cross members can be coupled during the detachment process with a bracket each, which are attached to a rod running in the longitudinal direction of the Filte ⁇ resse over the Filte ⁇ latten, oscillating in the axial direction.
  • the U-shaped bracket allows a positive connection between a simple Manufacture transmission device and the crossbar to initiate the shaking movements in the filter cloth.
  • the bar is provided with brackets for the cross members of all sections, the brackets of different sections being offset by an angle in the circumferential direction of the bar and the bar being pivotable about its longitudinal axis.
  • the relevant chambers can first be emptied after the next section has been opened by pivoting the brackets into the cross members of the opened section. After completion of the emptying process of the first section, the relevant brackets can be swung out and the emptied section can be closed again, whereby the next section is opened at the same time. By pivoting the rod again, the brackets for the now open section can be brought into engagement with the relevant cross members, which is followed by the emptying of this section. This process can continue until all sections have been emptied.
  • a coupling is provided between a drive device for the horizontal oscillating stroke movement of the rod and a swivel drive for the rod, in order to be able to decouple the drive device for the stroke movement in the event of a swivel movement of the rod.
  • FIG. 1 shows a side view of a filter press and FIG. 2 shows a front view of the filter press according to FIG. 1.
  • the Filte ⁇ resse 1 shown in Figures 1 and 2 has a press frame 2, which consists of lower stands 3 and upper stands 4 and the longitudinal beams 5 connecting the latter and two support bars 6.
  • a plurality of vertically aligned Filte ⁇ latten 8 is mounted horizontally displaceably on the support bars 6 with the aid of laterally projecting support brackets 7. For reasons of clarity, only a small number is shown of the Filte ⁇ latten 8, the number of which can easily reach 30.
  • FIG. 1 shows the packet of Filte ⁇ latten 8 in the so-called open position, in which adjacent Filte ⁇ latten 8 have a so-called emptying distance 12 from each other in the horizontal direction.
  • a filter cloth 14 is attached to the lower ends 13 of each Filte ⁇ latte 8, which is guided over a horizontal crossbar 15 arranged above the Filte ⁇ latten 8 and horizontally. In the open position of the plate pack, the filter cloths 14 therefore assume the roof-like shape shown in FIG.
  • the cross members 15 are connected at both ends via tension springs 16 with rollers 17 which move along the top of the longitudinal cross member 5 and ensure that the filter cloth 14 is always tensioned both in the closed position and in the open position of the filter press 1.
  • Adjacent Filte ⁇ latten 8 are each connected via a connecting bracket 18 through which all Filte ⁇ latten 8 can be brought to the defined emptying distance 12 from each other as a result of a displacement of the end piece 10.
  • a filter cake detaching device consists of further stands 19, 20 and 21, on which a rod 22 is slidably mounted in the longitudinal direction of the filter press 1 and which is additionally pivotable about its longitudinal axis 23.
  • U-shaped brackets 25, the number of which corresponds to the number of cross members 15, are fastened to the outer lateral surface 24 of the rod 22.
  • Figure 1 shows the bracket 25 in a position in which they include the laterally projecting beyond the Filte ⁇ latten 8 ends 26 of the cross members 15.
  • the view according to FIG. 2 shows that the brackets 25 can also be moved into a position likewise shown, in which the engagement with the cross members 15 is released, by pivoting the rod 22. This position is assumed when the Filte ⁇ latten 8 are in the closed position and the distances between the center planes of adjacent brackets 25 do not match the distances between adjacent cross members 15.
  • the rods 22 are rotated with the aid of the swivel drives 27, whereas the oscillating lifting movement in the horizontal direction is carried out with the aid of lifting drives 28 which are connected to the rod 22 via couplings 29.
  • the one stroke has the size of the emptying distance 12
  • the lifting movement is limited in both directions by a stop element 30 in each case.
  • the brackets 25 connected to it and the coupled crossbeams 15, one half of the filter cloth 14 - starting from the situation symmetrical to a vertical plane according to FIG. 1 - is brought into a vertical position , in which the filter cloth 14 comes to rest against the associated filter plate 8.
  • the other half of the filter cloth is brought into a more inclined position than in the starting position, the angle of inclination being almost doubled.
  • the filter cake 31 is usually ejected at the moment when the stop elements 30 come into action, as a result of which a particularly great acceleration acts on the filter cake 31 and is initially thrown off approximately in the vertical direction to the filter cloth 14.
  • the filter cake 31 is usually detached from the opposite half of the filter cloth 14 in the opposite dead center position of the associated crossbar 15.
  • the filter chambers are generally emptied section by section, since the space required for the opened filter plate package would otherwise be too great. Since the filter cake discharge device in this case only has to act on the Filte ⁇ latten 8 of an open section, the bracket 25 of different sections are staggered on the outer surface of the rod 22, so that only the bracket 25 of the section just opened and to be emptied with the associated cross members 15 are engaged.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

La présente invention concerne un filtre-presse (1) servant au filtrage de suspensions, présentant un ensemble de plaques de filtrage (8) d'orientation verticale dont chaque paire englobe respectivement un compartiment de filtrage. Chaque compartiment de filtrage est limité de ses deux côtés par une toile de filtrage (14) qui est guidée à partir des extrémités inférieures (13) des plaques de filtrage (8), en recouvrant le niveau de filtrage, par l'intermédiaire d'une traverse (15) disposée au-dessus des plaques de filtrage (8). La traverse (15) peut se déplacer en direction verticale lorsque les plaques de filtrage voisines (8) sont déplacées d'une position de fermeture dans laquelle la suspension peut être introduite dans le compartiment fermé, à une position d'ouverture dans laquelle les plaques de filtrage (8) présentent l'une par rapport à l'autre en direction horizontale un espace d'évacuation (12). Dans cette position, la toile de filtrage (14) prend une forme bombée. De plus, le filtre-presse (1) est doté d'un dispositif de vidage destiné au gâteau de filtrage (31) adhérant à la toile de filtrage (14), ledit dispositif permettant d'imposer à la toile de filtrage (14) des mouvements d'oscillation. Afin de garantir un bon détachement du gâteau de filtrage (31) de la toile de filtrage (14), les traverses (15) peuvent selon l'invention se déplacer en direction horizontale en effectuant des oscillations.
PCT/EP2001/013381 2000-12-12 2001-11-20 Filtre-presse dote d'un dispositif de vidage de gateau WO2002047788A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002219121A AU2002219121A1 (en) 2000-12-12 2001-11-20 Filter press comprising a cake ejecting device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10061918.5 2000-12-12
DE10061918A DE10061918B4 (de) 2000-12-12 2000-12-12 Filterpresse mit einer Kuchenabwurfeinrichtung

Publications (1)

Publication Number Publication Date
WO2002047788A1 true WO2002047788A1 (fr) 2002-06-20

Family

ID=7666864

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/013381 WO2002047788A1 (fr) 2000-12-12 2001-11-20 Filtre-presse dote d'un dispositif de vidage de gateau

Country Status (3)

Country Link
AU (1) AU2002219121A1 (fr)
DE (1) DE10061918B4 (fr)
WO (1) WO2002047788A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104492139A (zh) * 2015-01-09 2015-04-08 四川大学 压滤机滤布清洗装置
CN108249731A (zh) * 2018-05-04 2018-07-06 湖北合加环境设备有限公司 电渗透污泥高干脱水机滤室的自锁装置和滤板
TWI743957B (zh) 2020-08-21 2021-10-21 台灣卜力斯股份有限公司 具有濾布左右翻折功能之壓濾機

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622005A (en) * 1968-11-05 1971-11-23 Kurita Machinery Manuf Apparatus for automatically shaking filter cake in a filter press
US4209404A (en) * 1975-05-22 1980-06-24 Ngk Insulators, Ltd. Filter press
US4558641A (en) * 1983-12-07 1985-12-17 Kurita Machinery Manufacturing Company Limited Apparatus for oscillating filter cloth of filter press
US4710293A (en) * 1985-12-09 1987-12-01 Envirotech Corporation Filter cloth cake removal device
DE3933740A1 (de) * 1989-10-10 1991-04-11 Rittershaus & Blecher Gmbh Filterpresse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01207104A (ja) * 1988-02-15 1989-08-21 Ishigaki Kiko Kk フイルタプレスにおける濾布への加振装置
GB9316187D0 (en) * 1993-08-04 1993-09-22 Edwards & Jones Filter presses
JPH1099606A (ja) * 1996-10-01 1998-04-21 Ishigaki:Kk フィルタプレスのろ布の再生装置
DE19850602C1 (de) * 1998-11-03 2000-08-17 Erich Netzsch Gmbh & Co Kg Verfahren zum Entleeren von Filterpressen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622005A (en) * 1968-11-05 1971-11-23 Kurita Machinery Manuf Apparatus for automatically shaking filter cake in a filter press
US4209404A (en) * 1975-05-22 1980-06-24 Ngk Insulators, Ltd. Filter press
US4558641A (en) * 1983-12-07 1985-12-17 Kurita Machinery Manufacturing Company Limited Apparatus for oscillating filter cloth of filter press
US4710293A (en) * 1985-12-09 1987-12-01 Envirotech Corporation Filter cloth cake removal device
DE3933740A1 (de) * 1989-10-10 1991-04-11 Rittershaus & Blecher Gmbh Filterpresse

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104492139A (zh) * 2015-01-09 2015-04-08 四川大学 压滤机滤布清洗装置
CN108249731A (zh) * 2018-05-04 2018-07-06 湖北合加环境设备有限公司 电渗透污泥高干脱水机滤室的自锁装置和滤板
CN108249731B (zh) * 2018-05-04 2023-06-13 启迪合加新能源汽车有限公司 电渗透污泥高干脱水机滤室的自锁装置和滤板
TWI743957B (zh) 2020-08-21 2021-10-21 台灣卜力斯股份有限公司 具有濾布左右翻折功能之壓濾機

Also Published As

Publication number Publication date
DE10061918A1 (de) 2002-06-27
DE10061918B4 (de) 2006-04-27
AU2002219121A1 (en) 2002-06-24

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