WO2007131748A1 - Plaque de filtre à chambre - Google Patents

Plaque de filtre à chambre Download PDF

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Publication number
WO2007131748A1
WO2007131748A1 PCT/EP2007/004247 EP2007004247W WO2007131748A1 WO 2007131748 A1 WO2007131748 A1 WO 2007131748A1 EP 2007004247 W EP2007004247 W EP 2007004247W WO 2007131748 A1 WO2007131748 A1 WO 2007131748A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
filtrate
chamber filter
viewing
filter
Prior art date
Application number
PCT/EP2007/004247
Other languages
German (de)
English (en)
Inventor
Manfred P. Hermann
Original Assignee
Jvk Filtration Systems Gmbh
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 Jvk Filtration Systems Gmbh filed Critical Jvk Filtration Systems Gmbh
Priority to DE112007000949T priority Critical patent/DE112007000949A5/de
Publication of WO2007131748A1 publication Critical patent/WO2007131748A1/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
    • B01D25/21—Plate and frame presses
    • B01D25/215—Construction of the filter plates, frames

Definitions

  • the invention relates to a chamber filter plate for a filter press.
  • Such filter presses are pressure filters consisting of a number of parallel, usually square filter plates and frames.
  • the filter plates are arranged vertically and clamped as a plate pack in a filter press frame between a head piece and an end piece by means of a closing device on its entire circumference.
  • a so-called membrane press filter as a special form of filter or chamber filter press every second filter plate is provided on both sides with an elastic membrane membrane plate.
  • the filter plates form in the clamped state chambers for receiving the solids of the medium to be filtered, in particular a liquid or suspension to be filtered.
  • the filter plates have, for example, a centrally arranged pulp feed, the central longitudinal axis of which runs essentially transversely to the plate surface of the filter plate.
  • the adjoining slurry feeds form a turbidity channel, through which the filter plates are charged with the liquid to be filtered.
  • the filter chambers formed by the clamping together of two filter plates each have passage openings or channels for the entry of the liquid to be filtered, so-called turbidity feeds, and one or more filter bores as a filter outlet and are connected in parallel.
  • the plate surface of the filter plates is ribbed or nubbed and covered or covered with a filter cloth.
  • the collecting channels formed by the ribs or nubs support the filter cloth and allow the filtrate to drain off. The filter residue remains in the filter chamber.
  • the filtrate passes through arranged in the plate edge of each filter plate collecting channels to a filtrate.
  • the filtrate bores of the individual filter plates form a filtrate drainage channel for the removal of the filtrate.
  • Such filter plates are described for example in DE 203 17 546 U1.
  • Chamber filter presses are operated with an overpressure of 5 bar and more.
  • the filter cloth is therefore exposed to high mechanical stress. Over time, cracks may form in the filter cloth, causing localized sludge to enter the filter process. As a result, there is a deterioration of the filter result.
  • damage to the filter cloth is detected by conducting the filtrate stream to the outside during operation by means of a cock, for example a ball valve. If the filtrate is cloudy, the filter cloth may be damaged and repair measures initiated.
  • the invention has for its object to simplify the monitoring of a chamber filter press for trouble-free operation.
  • At least one filtrate channel of each chamber filter plate is designed so that it can be viewed from the outside during operation of the chamber filter plate and thus the filter press as a viewing channel.
  • the filter press as a viewing channel.
  • At least a portion of the viewing channel is plane-parallel to the end face of the plate edge. In this way, a visual inspection of the viewing channel is easily possible even in the assembled state of the chamber filter plate.
  • the viewing channel expediently has a viewing channel inlet and a visual channel outlet.
  • the view channel inlet connects the collecting channels of the plate surface with the viewing channel.
  • the sight channel drain connects the sight channel with a filtrate hole.
  • the viewing channel thus represents a filtrate channel, which is diverted to the end face of the plate edge for visual inspection.
  • the sight channel thus has, in addition to the function of visual inspection, the function of draining off the filtrate. It is manufacturing technology therefore just as easy to produce, as the conventional filtrate channels and requires no special extra effort.
  • the viewing channel is designed as a recess in the plate edge, which breaks through the end face of the plate edge and is closed with a transparent element, in particular a viewing window.
  • the viewing window allows for a view of the viewing channel and the filtrate flowing therein.
  • it also forms the wall of the viewing channel oriented towards the end face of the plate edge.
  • Such a recess in the end face of the plate edge can be easily introduced, for example by milling in this plate edge.
  • the formation of the viewing channel as a viewing window is space-saving. In the edge of the plate, the viewing window is protected against destruction.
  • the viewing window preferably consists of a transparent and pressure-resistant plastic. This ensures that the viewing window can not break during operation or when handling the chamber filter plate.
  • the viewing window expediently has receiving bores through which fastening screws are made. In this way, a ringfix ist the viewing window on the plate edge in a simple manner possible. In another variant, the viewing window is glued to the plate edge.
  • the viewing window closes the viewing channel in such a way that its outer side facing away from the viewing channel forms a substantially plane-parallel surface with the end face of the plate edge. If the viewing window is screwed on, it can be achieved by means of countersunk screws that the screw heads of the screws used for fixing essentially close with this plane-parallel surface.
  • the advantage of this embodiment is that the viewing window does not protrude from the end face of the plate edge. Thus, it is excluded that when handling the chamber filter plate, the viewing window is sheared off by snagging on an object.
  • FIG. 1 shows a chamber filter plate according to the invention in a plan view and in a side view
  • Fig. 2 is a viewing channel with reformatted feedstock, reformkanalablauf and Filtratbohrung as
  • Fig. 3 shows the viewing channel with a portion of the sortkanalzulaufs and part of the prepare for delivery and the viewing window as a detail of Fig. 2, Fig. 4 in a plan view of the viewing window and indicated the underlying viewing channel as a detail of the side view of FIG.
  • the chamber filter plate 1 has an inner plate body with a plate surface 2 on both sides.
  • the plate surface 2 is peripherally both in the longitudinal direction 3 and in the transverse direction 4 surrounded by a relative to the plate surface 2 thickened plate edge 5.
  • the plate edge thickness 6 in both the longitudinal direction 3 and the transverse direction 4 perpendicular plate assembly direction 7 of the plate edge 5 is greater than that corresponding thickness of the plate body in the Plate surface 2.
  • the plate edge 5 therefore clearly protrudes from the plate surface 2 in the plate-mounting direction 7.
  • this is a membrane mat with nubs, which is fastened on the plate surface 2 delimited by the plate edge step 9.
  • a filter cloth is stretched, which is supported on the knobs.
  • a filter chamber is formed in each case by the plate edge 5 and the respective plate surface 2 of two adjacent chamber filter plates 1.
  • the liquid or suspension to be filtered is fed to the filter chambers via a slurry inlet 10. It is pressed with an overpressure of 5 bar and more through the supported by the nubs filter cloth.
  • the solid contained in the liquid accumulates in the filter chambers while the filtrate drains through the collection channels formed by the nubs on the other side of the filter cloth.
  • a plurality of support cams 11 are arranged on the plate surface 2, which protrude from the plate surface 11 as far as the plate edge 5 and which are respectively supported on the opposite support cam 11 of the corresponding chamber filter plate 1. In this way, a mechanical stabilization of the filter chambers is achieved.
  • a filtrate bore 12 is arranged in the four corner regions of the plate edge 5.
  • filtrate outlet openings 13 are arranged in the plate edge 5 towards the collecting channels.
  • open filtrate channels 14 which each connect a Filtratauslaufö réelle 13 with a Filtratbohrung 12.
  • a filter channel 14 is also arranged in the plate edge, which is designed as a viewing channel 15.
  • This viewing channel 15 is shown in Fig. 2 in detail. It is milled as a recess in the end face 8 of the plate edge 5 and extends substantially plane-parallel to the end face 8.
  • the viewing channel 15 has a prepare for the Sight channel connects via a not shown in Fig. 2 Filtratauslaufö réelle 13 with the arranged on the plate surface 2 collecting channels.
  • the viewing channel 15 has a prepare for the viewing channel with the filtrate bore 12.
  • FIG. 3 the viewing channel 15 of Fig. 2 is shown in an enlarged detail.
  • the end face 8 facing side of the viewing channel 15 is closed by means of a viewing window 18.
  • the viewing window 18 allows a view of the filtrate flowing in the visual channel 15 on the one hand.
  • the side of the viewing window 18 facing the viewing channel 15 forms one of the walls of the viewing channel 15.
  • the viewing window 18 has receiving bores 19, through which fastening screws 20 are guided. These fastening screws 20 are screwed pressure-tight with introduced into the plate edge 5 screw channels 21.
  • Fig. 4 shows a plan view of the viewing window 18, which is bolted to four fastening screws 20 on the end face 8 of the plate edge 5. Dashed lines are also the viewing channel 15, its detoxkanalzulauf 16 and its reformkanalablauf 17 shown.
  • the filtrate draining via the viewing channel 15 can thus be observed at any time in the mounted state via the viewing window 18. If, for example, a crack in the filter cloth delimiting the filter chamber from the collecting ducts leads to a deterioration of the filter performance, the resulting turbidity of the filtrate in the visual channel 15 can be recognized. Since each of the chamber filter plates 1 has at least one viewing channel 15, it is therefore also easily recognizable in which chamber filter plate 1 a damage of the filter cloth has occurred. The damage is thus locally limited to a chamber filter plate, and repair measures can thus be initiated selectively. LIST OF REFERENCE NUMBERS

Landscapes

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

Abstract

Plaque de filtre à chambre (1) pour un filtre-presse dotée d'une surface de plaque (2) pour collecter le filtrat, d'un bord de plaque (5) circulaire épaissi par rapport à la surface de la plaque (2), d'un ou plusieurs perçage(s) de filtrat (12) dans le bord de plaque (5) pour évacuer le filtrat, ainsi que de canaux de filtrat (14) reliant la surface de plaque (2) et les perçages de filtrat (12), au moins un canal de filtrat (14) étant visible de l'extérieur pendant le fonctionnement de la plaque de filtrage à chambre (1) pour former un canal de visée (15) et permettant ainsi un contrôle du filtrat sur une turbidité.
PCT/EP2007/004247 2006-05-12 2007-05-12 Plaque de filtre à chambre WO2007131748A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112007000949T DE112007000949A5 (de) 2006-05-12 2007-05-12 Kammerfilterplatte

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200620007748 DE202006007748U1 (de) 2006-05-12 2006-05-12 Kammerfilterplatte
DE202006007748.0 2006-05-12

Publications (1)

Publication Number Publication Date
WO2007131748A1 true WO2007131748A1 (fr) 2007-11-22

Family

ID=38421522

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/004247 WO2007131748A1 (fr) 2006-05-12 2007-05-12 Plaque de filtre à chambre

Country Status (2)

Country Link
DE (2) DE202006007748U1 (fr)
WO (1) WO2007131748A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB104673A (en) * 1916-03-10 1918-04-25 Charles Day Burchenal Improvements in Filters.
US1488862A (en) * 1920-10-09 1924-04-01 Charles D Burchenal Apparatus for operating on filtrab le materials
US1722497A (en) * 1927-10-18 1929-07-30 Foster John Preston Filter plate
GB434581A (en) * 1934-11-28 1935-09-04 Edward Zahm Improvements in and relating to filters
GB549469A (en) * 1941-07-30 1942-11-23 Adolphe Henry Vaudin Improvements in or relating to filter-presses
GB937415A (en) * 1960-05-25 1963-09-18 Philipp Berdelle Hilge Improvements in or relating to filter apparatus
DE2358578A1 (de) * 1973-11-24 1975-05-28 Lenser Kunststoff Press Filterplatte fuer eine filterpresse
JP2000301134A (ja) * 1999-04-23 2000-10-31 Kosu:Kk 汚水濃度測定装置とこの装置を用いた監視システム
WO2002076529A1 (fr) * 2001-03-12 2002-10-03 Stichting Hogeschool Van Utrecht Dispositif de traitement de sang
FR2855071A1 (fr) * 2003-05-21 2004-11-26 Orelis Dispositif de separation par une pluralite de membranes de filtration d'un fluide en au moins deux fractions et son utilisation

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB104673A (en) * 1916-03-10 1918-04-25 Charles Day Burchenal Improvements in Filters.
US1488862A (en) * 1920-10-09 1924-04-01 Charles D Burchenal Apparatus for operating on filtrab le materials
US1722497A (en) * 1927-10-18 1929-07-30 Foster John Preston Filter plate
GB434581A (en) * 1934-11-28 1935-09-04 Edward Zahm Improvements in and relating to filters
GB549469A (en) * 1941-07-30 1942-11-23 Adolphe Henry Vaudin Improvements in or relating to filter-presses
GB937415A (en) * 1960-05-25 1963-09-18 Philipp Berdelle Hilge Improvements in or relating to filter apparatus
DE2358578A1 (de) * 1973-11-24 1975-05-28 Lenser Kunststoff Press Filterplatte fuer eine filterpresse
JP2000301134A (ja) * 1999-04-23 2000-10-31 Kosu:Kk 汚水濃度測定装置とこの装置を用いた監視システム
WO2002076529A1 (fr) * 2001-03-12 2002-10-03 Stichting Hogeschool Van Utrecht Dispositif de traitement de sang
FR2855071A1 (fr) * 2003-05-21 2004-11-26 Orelis Dispositif de separation par une pluralite de membranes de filtration d'un fluide en au moins deux fractions et son utilisation

Also Published As

Publication number Publication date
DE202006007748U1 (de) 2007-09-13
DE112007000949A5 (de) 2009-04-09

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