EP0648542A1 - Abgedichtete elastisch verformbare Vorrichtung zum Ablösen der Filterkuchengrundschicht - Google Patents

Abgedichtete elastisch verformbare Vorrichtung zum Ablösen der Filterkuchengrundschicht Download PDF

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Publication number
EP0648542A1
EP0648542A1 EP94420272A EP94420272A EP0648542A1 EP 0648542 A1 EP0648542 A1 EP 0648542A1 EP 94420272 A EP94420272 A EP 94420272A EP 94420272 A EP94420272 A EP 94420272A EP 0648542 A1 EP0648542 A1 EP 0648542A1
Authority
EP
European Patent Office
Prior art keywords
basket
flexible tube
fabric
grid
grille
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
EP94420272A
Other languages
English (en)
French (fr)
Other versions
EP0648542B1 (de
Inventor
Michel Martin
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.)
Robatel SLPI SA
Original Assignee
Robatel SLPI SA
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 Robatel SLPI SA filed Critical Robatel SLPI SA
Publication of EP0648542A1 publication Critical patent/EP0648542A1/de
Application granted granted Critical
Publication of EP0648542B1 publication Critical patent/EP0648542B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B15/00—Other accessories for centrifuges
    • B04B15/06—Other accessories for centrifuges for cleaning bowls, filters, sieves, inserts, or the like

Definitions

  • the present invention relates to a device for stripping the cake and / or the residual layer retained against the filter cloth of a basket of a centrifuge with horizontal or vertical axis after centrifugation of the substance to be treated.
  • the cake consists of the filtered solid of the substance to be treated, while the residual layer is formed by the filtered solid remaining against the filter cloth after scraping the cake in order to avoid deterioration of said cloth by the cutting element of the scraper.
  • the residual layer is removed from the centrifuge either because it hinders filtration between two centrifugations of the same product and this by a clogging effect, or because a change of substance to be treated requires the complete removal of the product previously decanted.
  • Japanese patents JP 59 95954 and JP-60 022955 know from pressure devices for removing the filtered solid forming the cake.
  • Japanese patent JP 59 95954 shows a waterproof elastic pocket which is placed between the inner wall of the basket and the filter cloth.
  • the pocket has a certain number of holes to allow the liquid to be evacuated during centrifugation.
  • a pressurized gas is sent inside the pocket to move the filter cloth towards the axis of rotation of the machine in order to break the residual layer remaining against the filter cloth after scraping the cake.
  • the device has certain drawbacks with regard to the elastic pocket which prevents the passage of a large quantity of liquid inside the machine. Indeed, the liquid is retained upstream of the filter cloth due to the presence of the sealed bag which reduces the filtration surface, which considerably degrades the drying of the solid layer.
  • Japanese patent JP 60 022955 shows a double thickness filter cloth so as to constitute a pocket which deforms under the action of a fluid under pressure. This device cannot function because it is impossible to build a pocket allowing the liquid phase to pass during the spinning process and which can then swell and remain waterproof under a high pressure varying between 3 and 6 bar.
  • the purpose of the stripping device according to the present invention is to allow perfect evacuation of the liquid contained in the substance to be treated and to break the solid layer obtained after centrifugation under the effect of a push.
  • the device comprises a first wide mesh screen or grid fixed against the internal face of the basket grille, at least one flexible and sealed tube connected to a pressure source and which is in abutment against the first canvas or grid, a second canvas or grid identical to the first, which covers the flexible tube so that the latter is sandwiched between the first and second canvas or grid, and a fine mesh filter cloth which is fixed against the second cloth or grid.
  • the flexible tube has the shape either of a torus, or of a helix, or of a C closed at its ends which is secured to vertical pockets regularly spaced around its periphery.
  • the flexible tube can also have a square or rectangular section so as to increase the bearing surface against the decanted solid layer.
  • Fig. 1 is a section showing the basket of a centrifuge with vertical axis provided with the stripping device comprising a tube in the form of a torus in the deflated position.
  • Fig. 2 is a view similar to that of FIG. 1, but showing the flexible and leaktight tube under pressure for moving the filter cloth in order to break the solid layer.
  • Fig. 3 is an enlarged partial section showing the stripping device before it is pressurized.
  • Fig. 4 is a view similar to that of FIG. 3 but illustrating the deburring device put under pressure to break the solid layer.
  • Fig. 5 is a perspective view illustrating a variant of the flexible and sealed tube according to the invention.
  • Fig. 6 and 7 are sections showing a variant of the stripping device which is intended for machines with a horizontal axis and whose flexible and sealed tube is arranged in a helix.
  • Fig. 8 and 9 are sections showing a sealed envelope for the protection of the deburring device against chemicals.
  • a basket 1 of a centrifuge with a vertical axis known per se.
  • the basket 1 has a bottom 1 a secured to a vertical grille 1 b , the upper periphery of which is bordered by a crown 1 c parallel to the bottom and oriented towards the middle of said basket.
  • the bottom 1 a is drilled near its center of through holes 1 d allowing the evacuation of the solid product.
  • the grille 1b is pierced in the known manner with a multitude of holes 1e allowing the evacuation of the liquid phase contained in the substance to be treated.
  • a first fabric or a grid 2 with a wide mesh Inside the basket 1 and against the grille 1 b is placed a first fabric or a grid 2 with a wide mesh. The latter is of a height equivalent to that provided between the bottom 1 a and the crown 1 c of the basket 1.
  • a stripping device 3 On the canvas or grid 2 is placed a stripping device 3 consisting of a sealed tube 3 a in the shape of a torus which is made of a material such as elastic or deformable plastic.
  • the stripping device 3 is covered with a second fabric or grid 4 identical to the first but with a larger surface.
  • the second fabric or grid 4 is covered with another fine mesh filter fabric 5 whose surface is equivalent to that 4.
  • the fabrics 2, 4 and 5 are fixed in the upper part of the grille 1 b just below the crown 1 c , while the fabrics 4 and 5 are integral with the bottom 1 a at the level of the holes 1 d .
  • the wide mesh 2 is placed only against the grille 1 b .
  • the stripping device 3 comprises a flexible tube 3 a in the form of a torus provided with a conduit 3 d which is connected via a conduit to a source of pressurized gas by means of a rotary valve not shown avoiding stop the centrifuge.
  • the flexible tube 3 a is placed inside the basket 1 at a certain distance from the grille 1 b because of the canvas or grid 2 with a wide mesh.
  • the flexible tube 3 a has a surface area smaller than that of the calender 1 b when it is in the rest position in order to allow the liquid extracted from the substance to be treated to circulate during centrifugation.
  • the liquid passes through the fine mesh fabric 5, then the second fabric or grid 4 with a wide mesh to slide on the tube 3 a to bypass it at its upper and lower ends in order to be evacuated through the holes. 1 e arranged in the grille 1 b .
  • the first canvas or grid 2 with a wide mesh prevents the tube 3 a under the effect of centrifugal force from plugging the holes 1 e of the grille and leaving a free circulation of the liquid for its evacuation.
  • FIG. 3 shows a part of the calender 1b of the basket 1 on which is retained after centrifugation the decanted solid product 6 constituting for example either the cake or the residual layer.
  • the decanted solid 6 is pressed against the filter cloth 5.
  • the pressure relief device 3 has been shown, that is to say that the tube 3 a is filled with a gas under pressure, which makes it possible to push the cloth or grid 4 with a wide mesh and the filter cloth 5 towards the center of the basket 1 which is rotated to break the decanted solid product 6 into pieces with a view to its elimination through the holes 1 d (fig. 2).
  • FIG. 5 shows a first variant of the removal device 3 which comprises a tube 3 'is placed within the centrifuge or near the bottom 1a, is of the crown 1 c of the calender 1b.
  • the flexible tube 3 ' a has a C shape closed at its ends and whose periphery is secured to several vertical pockets 3' b regularly spaced.
  • the flexible tube 3 ' a is placed inside the basket 1 so that the pockets 3' b extend vertically and parallel to the grille 1 b .
  • One end of the tube 3 ' has a connector 3' b which is connected to a source of gas under pressure by means of a not shown rotary valve to function in the same manner as the tube 3 is shown in Fig. 3 and 4.
  • the flexible tube 3 ' a in the form of C and its vertical pockets 3' b are between the first fabric or grid 2 and the second fabric or grid 4 in the same manner as for the flexible tube 3 a .
  • the horizontal axis centrifuge comprises a bag 1 'is known per se provided with a bottom 1' was placed in a vertical plane, a horizontal grille 1'b whose periphery opposite the bottom 1a is bordered by a ring 1 ' c provided with an internal bore 1 ' d .
  • the grille 1 ' b is pierced in the known manner with a multitude of holes 1' e allowing the evacuation of the liquid phase contained in the substance to be treated.
  • the first fabric or grid 2 with a wide mesh.
  • the removal device 3 comprising a flexible tube 3 '' is closed at its two free ends. The latter is placed in a helix, but it can also be arranged in a sinusoid.
  • the flexible tube 3 '' a is covered with the second fabric or grid 4 which is itself covered with the filter fabric 5 with fine mesh.
  • the flexible tube 3 '' a is also connected to a source of pressurized gas to break the decanted solid layer 6 as shown in fig. 3 and 4.
  • the fabrics 2, 4 and 5 are fixed inside the basket 1 'on the bottom 1' a and on the crown 1 ' c to allow movement of the pressurized gas into the tube 3'' to move fabrics 4 and 5 at the internal bore 1 ′ d of the crown 1 ′ c so that the solid product 6 can overflow outside the basket 1 when the basket rotates at very low speed (FIG. 7).
  • a knife 1 ' f shown in phantom allows, when the wrung solid 6 is broken or fragmented, to be directed outside the basket 1' when the basket 1 is rotated.
  • the knife 1 ' f consists of a flexible blade so as not to damage the filter cloth 5.
  • a sealed envelope 7 resistant to the aggressiveness of chemicals to protect the tubes 3 a , 3 ' a , 3'' a or the pockets 3' b .
  • the tubes 3 a , 3 ' a , 3'' a or the pockets 3' b are introduced inside a corresponding envelope 7 made of a reinforced plastic material.
  • the envelope 7 is of a larger dimension than those of the tubes 3 a , 3 ' a , 3'' a and / or the pockets 3' b to allow the deformation of the latter during the injection of a gas. under pressure.

Landscapes

  • Centrifugal Separators (AREA)
  • Knitting Of Fabric (AREA)
EP94420272A 1993-10-13 1994-10-11 Abgedichtete elastisch verformbare Vorrichtung zum Ablösen der Filterkuchengrundschicht Expired - Lifetime EP0648542B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9312391 1993-10-13
FR9312391A FR2711076B1 (fr) 1993-10-13 1993-10-13 Dispositif étanche et déformable élastiquement pour le débatissage de la couche résiduelle.

Publications (2)

Publication Number Publication Date
EP0648542A1 true EP0648542A1 (de) 1995-04-19
EP0648542B1 EP0648542B1 (de) 1998-12-16

Family

ID=9451943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94420272A Expired - Lifetime EP0648542B1 (de) 1993-10-13 1994-10-11 Abgedichtete elastisch verformbare Vorrichtung zum Ablösen der Filterkuchengrundschicht

Country Status (5)

Country Link
US (1) US5547573A (de)
EP (1) EP0648542B1 (de)
DE (1) DE69415262T2 (de)
ES (1) ES2125429T3 (de)
FR (1) FR2711076B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0908239A1 (de) * 1997-10-13 1999-04-14 Robatel Vorrichtung zum Ablösen der Filterkuchengrundschicht einer Schleuderzentrifuge

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6063298A (en) * 1998-07-09 2000-05-16 Baker Hughes Incorporated Filtering centrifuge with cake heel removal mechanism and associated method
DE202013000722U1 (de) * 2013-01-24 2013-02-27 Andreas Klotz Vorrichtung zur Bearbeitung von Kleinteilen
WO2019038468A1 (en) * 2017-08-23 2019-02-28 Outotec (Finland) Oy LIQUID FILTERING APPARATUS, KEY, FILTER MEDIUM MEMBER, METHOD OF OPERATION, AND METHOD FOR SERVICING SUCH APPARATUS
JP2021506576A (ja) * 2017-12-19 2021-02-22 ゼロス リミテッド 処理装置のためのろ過器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5995954A (ja) * 1982-11-25 1984-06-02 Kakoki Kankyo Service:Kk 遠心「ろ」過機のケ−キはらい落し装置
JPS6022955A (ja) * 1983-07-15 1985-02-05 Kakoki Kankyo Service:Kk 竪型遠心「ろ」過機
DE3518648A1 (de) * 1985-05-23 1986-11-27 Werner Prof. Dr. 6740 Landau Stahl Vorrichtung zum abloesen eines filterkuchens

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE194863C (de) *
US1423021A (en) * 1919-09-22 1922-07-18 Tyler Co W S Screening apparatus
USRE18597E (en) * 1925-05-04 1932-09-13 Apparatus ifor separating solids from liquids or liquors by filtration
US2312999A (en) * 1938-12-23 1943-03-02 Langen Lambertus Hendrik De Filter for separating solids from liquids
US2724508A (en) * 1954-05-26 1955-11-22 Sun Oil Co Separator for solid-liquid slurry
US3017996A (en) * 1958-07-14 1962-01-23 Industrial Filter Pump Mfg Co Filtration apparatus
NL104592C (de) * 1959-12-18
GB920447A (en) * 1961-05-18 1963-03-06 Davidson Maxwell Wingate Improved inflatable bag for liquid extraction apparatus
DE1298400B (de) * 1962-07-16 1969-06-26 Standard Filterbau Gmbh Vorrichtung zum Abreinigen der Filterschlaeuche in Schlauchfiltern mittels Spuelduesen
FR2105570A5 (en) * 1970-09-04 1972-04-28 Ferrier Daniel Self-clearing filter - automatic, mechanical deformation of filter sheet periodically dislodges sediment
US3682310A (en) * 1970-10-12 1972-08-08 Joseph M Valdespino Apparatus for liquid waste treatment and means for stripping same
SU419259A1 (ru) * 1972-05-24 1974-03-15 Фильтрующая подвесная салюразгружающаясяцентрифуга
US3834535A (en) * 1972-08-09 1974-09-10 Diaclear Inc Swimming pool filtering system
SU484882A1 (ru) * 1973-04-24 1975-09-25 Предприятие П/Я А-7850 Фильтр
FR2289222A1 (fr) * 1974-10-30 1976-05-28 Achard Picard Jean Filtre sous pression a decolmatage pneumatique
GB1582957A (en) * 1977-02-07 1981-01-21 English Clays Lovering Pochin Tube pressure filters
JPS5629567A (en) * 1979-08-16 1981-03-24 Toyo Jozo Co Ltd Alpha-cycloalkylthio-phenylacetic acid
IL60444A (en) * 1979-08-01 1985-03-31 Robins Co Inc A H 2-amino-3-(alkylthiobenzoyl)-phenylacetic acid derivatives and pharmaceutical compositions containing them
US4622144A (en) * 1982-04-12 1986-11-11 Amsted Industries Incorporated Pressure filter apparatus
US4714557A (en) * 1986-06-12 1987-12-22 Amsted Industries Incorporated Pressure filter cake-breaking method and apparatus
US4944874A (en) * 1986-12-12 1990-07-31 Kabushiki Kaisha Okawara Seisakusho Centrifugal separator
SU1465075A1 (ru) * 1987-05-04 1989-03-15 Ленинградский инженерно-строительный институт Сетчатый напорный фильтр
US4795570A (en) * 1987-07-07 1989-01-03 Andy River Inc. Two-stage batch filter apparatus and filtration process
ATE94082T1 (de) * 1988-11-17 1993-09-15 Herco Cff Chiralflow Filter Druckfilterapparat.
FR2641715B1 (fr) * 1989-01-19 1991-04-12 Robatel Slpi Essoreuse centrifuge a cuve articulee pour filtration en atmosphere sterile
SU1681892A1 (ru) * 1989-06-14 1991-10-07 Воронежский инженерно-строительный институт Фильтр дл очистки нефтесодержащих сточных вод
GB8918006D0 (en) * 1989-08-07 1989-09-20 Statefocus Ltd Strainer
DE4013388A1 (de) * 1990-04-26 1991-10-31 Titus Hans Joachim Zentrifugen-trockner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5995954A (ja) * 1982-11-25 1984-06-02 Kakoki Kankyo Service:Kk 遠心「ろ」過機のケ−キはらい落し装置
JPS6022955A (ja) * 1983-07-15 1985-02-05 Kakoki Kankyo Service:Kk 竪型遠心「ろ」過機
DE3518648A1 (de) * 1985-05-23 1986-11-27 Werner Prof. Dr. 6740 Landau Stahl Vorrichtung zum abloesen eines filterkuchens

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 8, no. 205 (C - 243)<1642> 19 September 1984 (1984-09-19) *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 134 (C - 285) 8 June 1985 (1985-06-08) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0908239A1 (de) * 1997-10-13 1999-04-14 Robatel Vorrichtung zum Ablösen der Filterkuchengrundschicht einer Schleuderzentrifuge
FR2769522A1 (fr) * 1997-10-13 1999-04-16 Robatel Slpi Dispositif de debatissage pour essoreuse centrifuge
US6047835A (en) * 1997-10-13 2000-04-11 Robatel Clearing device for a centrifugal separator

Also Published As

Publication number Publication date
FR2711076B1 (fr) 1995-12-08
DE69415262T2 (de) 1999-06-17
ES2125429T3 (es) 1999-03-01
EP0648542B1 (de) 1998-12-16
FR2711076A1 (fr) 1995-04-21
US5547573A (en) 1996-08-20
DE69415262D1 (de) 1999-01-28

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