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WO1997044111B1 - Filtre fluidisable a ecoulement radial - Google Patents

Filtre fluidisable a ecoulement radial

Info

Publication number
WO1997044111B1
WO1997044111B1 PCT/US1997/008942 US9708942W WO9744111B1 WO 1997044111 B1 WO1997044111 B1 WO 1997044111B1 US 9708942 W US9708942 W US 9708942W WO 9744111 B1 WO9744111 B1 WO 9744111B1
Authority
WO
WIPO (PCT)
Prior art keywords
media
fluidizing
chamber
volume
influent
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.)
Ceased
Application number
PCT/US1997/008942
Other languages
English (en)
Other versions
WO1997044111A1 (fr
Filing date
Publication date
Priority to MXPA98010890A priority Critical patent/MXPA98010890A/es
Priority to HK00100902.7A priority patent/HK1022114B/xx
Priority to US09/194,060 priority patent/US6322704B1/en
Priority to CA002256385A priority patent/CA2256385C/fr
Priority to AU34739/97A priority patent/AU715029B2/en
Priority to EP97930996A priority patent/EP0909207A4/fr
Application filed filed Critical
Publication of WO1997044111A1 publication Critical patent/WO1997044111A1/fr
Publication of WO1997044111B1 publication Critical patent/WO1997044111B1/fr
Anticipated expiration legal-status Critical
Priority to US11/053,550 priority patent/US7163621B2/en
Priority to US11/653,637 priority patent/US7470372B2/en
Ceased legal-status Critical Current

Links

Abstract

Filtre à écoulement radial (120) utilisant des particules granulées non liées (56) pour filtrer un influent et en éliminer les impuretés; le filtre peut être nettoyé à contre-courant par fluidisation des particules granulées (56) pour en éliminer les impuretés. Lors du nettoyage à contre-courant, un liquide de lavage à contre-courant exerce une force de traînée dirigée vers le haut sur une portion supérieure des particules granulées (56), ce qui fait remonter ces dernières dans la chambre de lavage à contre-courant (62), où elles sont fluidisées. Dès que la portion supérieure des particules granulées (56) du lit de filtrage a été fluidisée, le liquide de lavage à contre-courant exerce une force dirigée vers le haut sur la portion suivante du lit fluidisé, ce qui a pour effet de fluidiser les particules granulées (56) dans la chambre de lavage à contre-courant (62). On fluidise les sections suivantes du lit granulé de manière semblable afin de nettoyer complètement les particules granulées (56). Après le lavage à contre-courant, les particules granulées (56) retombent dans la chambre de filtrage (156) pour former un lit filtrant utilisé dans l'opération de filtrage.
PCT/US1997/008942 1996-05-23 1997-05-23 Filtre fluidisable a ecoulement radial Ceased WO1997044111A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
HK00100902.7A HK1022114B (en) 1996-05-23 1997-05-23 Radial-flow fluidizable filter
US09/194,060 US6322704B1 (en) 1996-05-23 1997-05-23 Radial-flow fluidizable filter
CA002256385A CA2256385C (fr) 1996-05-23 1997-05-23 Filtre fluidisable a ecoulement radial
AU34739/97A AU715029B2 (en) 1996-05-23 1997-05-23 Radial-flow fluidizable filter
EP97930996A EP0909207A4 (fr) 1996-05-23 1997-05-23 Filtre fluidisable a ecoulement radial
MXPA98010890A MXPA98010890A (es) 1996-05-23 1997-05-23 No hay dato.
US11/053,550 US7163621B2 (en) 1996-05-23 2005-02-08 Fluidizable device
US11/653,637 US7470372B2 (en) 1996-05-23 2007-01-16 Fluid treatment device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US1816896P 1996-05-23 1996-05-23
US60/018,168 1996-05-23
US2367996P 1996-08-17 1996-08-17
US60/023,679 1996-08-17

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US09/194,060 A-371-Of-International US6322704B1 (en) 1996-05-23 1997-05-23 Radial-flow fluidizable filter
US09194060 A-371-Of-International 1997-05-23
US09/978,962 Continuation US6852232B2 (en) 1996-05-23 2001-10-15 Down flow radial flow filter

Publications (2)

Publication Number Publication Date
WO1997044111A1 WO1997044111A1 (fr) 1997-11-27
WO1997044111B1 true WO1997044111B1 (fr) 1998-01-29

Family

ID=26690813

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/008942 Ceased WO1997044111A1 (fr) 1996-05-23 1997-05-23 Filtre fluidisable a ecoulement radial

Country Status (6)

Country Link
EP (1) EP0909207A4 (fr)
CN (1) CN1080131C (fr)
AU (1) AU715029B2 (fr)
CA (1) CA2256385C (fr)
MX (1) MXPA98010890A (fr)
WO (1) WO1997044111A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6852232B2 (en) * 1996-05-23 2005-02-08 John D. Martin Down flow radial flow filter
US9718004B2 (en) 2011-10-03 2017-08-01 Ishigaki Company Limited Filter medium layer and filter device provided with same
NL1041872B1 (nl) * 2016-05-18 2017-11-30 Waterslag B V Inrichting en werkwijze voor het filteren van een verontreiniging uit een vloeistof, tevens werkwijze voor het regenereren van zo een inrichting
CA3075447A1 (fr) * 2017-09-15 2019-03-21 Filippo Bussinelli Appareil pour le filtrage de liquides
IT201700103653A1 (it) * 2017-09-15 2019-03-15 Filippo Bussinelli Apparecchiatura di filtraggio per la filtrazione di liquidi
CN114570109B (zh) * 2022-05-09 2022-07-19 北京市一滴水环保科技有限公司 复合滤芯组件、沉淀过滤池及复合滤芯组件的反洗方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL17673C (fr) * 1924-10-01
US4021339A (en) * 1973-05-24 1977-05-03 Patrick Foody Water filter
US4019985A (en) * 1975-07-30 1977-04-26 Texaco Inc. Methods for fluidizing a filter media
US4185466A (en) * 1978-05-22 1980-01-29 Grumman Aerospace Corporation Partial pressure condensation pump
US4643836A (en) * 1985-10-01 1987-02-17 Schmid Lawrence A Radial flow filter having air fluidizing backwash means

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