DE69613699D1 - Vorrichtung, Anlage und Verfahren zur Schlammfiltration, insbesondere zur Filtration von Gülle - Google Patents

Vorrichtung, Anlage und Verfahren zur Schlammfiltration, insbesondere zur Filtration von Gülle

Info

Publication number
DE69613699D1
DE69613699D1 DE69613699T DE69613699T DE69613699D1 DE 69613699 D1 DE69613699 D1 DE 69613699D1 DE 69613699 T DE69613699 T DE 69613699T DE 69613699 T DE69613699 T DE 69613699T DE 69613699 D1 DE69613699 D1 DE 69613699D1
Authority
DE
Germany
Prior art keywords
filter
filtration
plate
sludge
plant
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.)
Expired - Fee Related
Application number
DE69613699T
Other languages
English (en)
Other versions
DE69613699T2 (de
Inventor
Marcel Norais
Bernard Neveu
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.)
Grande Paroisse SA
Original Assignee
Grande Paroisse 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 Grande Paroisse SA filed Critical Grande Paroisse SA
Publication of DE69613699D1 publication Critical patent/DE69613699D1/de
Application granted granted Critical
Publication of DE69613699T2 publication Critical patent/DE69613699T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
    • B01D29/6423—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a translational movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
    • B01D29/6484—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a translatory movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
    • B01D29/80—Handling the filter cake in the filter for purposes other than for regenerating for drying
    • B01D29/82—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression
    • B01D29/824—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression using pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
    • B01D33/015—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with flat filtering elements
    • B01D33/0183—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with flat filtering elements supported
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/461—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
    • B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
    • B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
    • B01D33/644—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression by pressure plates, membranes
    • 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
    • B30B9/04—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 press rams
    • B30B9/06—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 press rams co-operating with permeable casings or strainers
    • 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
    • B30B9/04—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 press rams
    • B30B9/06—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 press rams co-operating with permeable casings or strainers
    • B30B9/067—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 press rams co-operating with permeable casings or strainers with a retractable abutment member closing one end of the press chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3003—Details
    • B30B9/3039—Fluid removing means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Sludge (AREA)
  • Filtration Of Liquid (AREA)
DE69613699T 1996-10-25 1996-12-04 Vorrichtung, Anlage und Verfahren zur Schlammfiltration, insbesondere zur Filtration von Gülle Expired - Fee Related DE69613699T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9613029A FR2755034B1 (fr) 1996-10-25 1996-10-25 Dispositif, installation et procede de filtration de boues, en particulier de lisier

Publications (2)

Publication Number Publication Date
DE69613699D1 true DE69613699D1 (de) 2001-08-09
DE69613699T2 DE69613699T2 (de) 2002-05-08

Family

ID=9497024

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69613699T Expired - Fee Related DE69613699T2 (de) 1996-10-25 1996-12-04 Vorrichtung, Anlage und Verfahren zur Schlammfiltration, insbesondere zur Filtration von Gülle

Country Status (10)

Country Link
US (1) US6110388A (de)
EP (1) EP0838254B1 (de)
JP (1) JPH10128016A (de)
KR (1) KR19980032385A (de)
AT (1) ATE202719T1 (de)
CA (1) CA2211817A1 (de)
DE (1) DE69613699T2 (de)
DK (1) DK0838254T3 (de)
ES (1) ES2160220T3 (de)
FR (1) FR2755034B1 (de)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2780963B1 (fr) 1998-07-10 2000-12-08 Grande Paroisse Sa Perfectionnement dans la separation d'un lisier en un solide et un filtrat
FR2814455B1 (fr) * 2000-09-26 2003-08-15 Norais Technologies Procede de filtration de boues ou de lisiers et dispositif pour sa mise en oeuvre
US6575307B2 (en) * 2000-10-10 2003-06-10 Rain Bird Corporation Self-cleaning water filter
DE10100145A1 (de) * 2001-01-03 2002-07-04 Reishauer Ag Verfahren und Vorrichtung zum Ausfiltern und Trocknen von Feststoffpartikeln aus Flüssigkeiten
EP1427795A4 (de) * 2001-08-29 2004-12-29 Generation Technology Res Pty Kohleentwässerungssystem und -verfahren
WO2006136156A1 (en) * 2005-05-12 2006-12-28 J.Hvidtved Larsen A/S Method and apparatus for draining of sludge.
KR100584018B1 (ko) * 2005-12-14 2006-05-29 김운섭 폐수처리용 평판식 고액분리장치
ITRE20060114A1 (it) * 2006-09-28 2008-03-29 P M P O S R L Dispositivo di filtrazione e compattazione per particelle solide sospese e contenute nei fluidi, come i fanghi da lavorazioni meccaniche
US9149743B2 (en) 2007-10-04 2015-10-06 Michael K. Conwell Apparatus for dewatering solids-laden liquids
US8070960B2 (en) * 2007-10-04 2011-12-06 Conwell Michael K Method of dewatering solids laden liquids utilizing a reusable filter element
US8505566B2 (en) 2007-10-17 2013-08-13 The Toro Company Valve glue diverter
US8360250B2 (en) * 2007-12-07 2013-01-29 The Toro Company Self-cleaning valve
DE102008047427A1 (de) * 2008-09-15 2010-04-15 Bähr, Albert, Dipl.-Ing. Verfahren und Vorrichtung zur Fest-Flüssig-Trennung von Stoffgemischen und Suspensionen
WO2010039250A1 (en) * 2008-10-02 2010-04-08 Gryphon Environmental, Llc Suspension liquid extraction apparatus and method
GB0907015D0 (en) * 2009-04-24 2009-06-03 Brentnall Nicholas Filter with compressible housing
JP2010279860A (ja) * 2009-06-02 2010-12-16 Nisshin Seisakusho:Kk 含液スラッジの脱液・固形化方法およびその装置
US20110084029A1 (en) * 2009-10-08 2011-04-14 Dominick O' Reilly Waste treatment system
US20110089097A1 (en) * 2009-10-19 2011-04-21 O'reilly Dominick Attachment and system for dewatering material
US20110094395A1 (en) * 2009-10-26 2011-04-28 O'reilly Dominick Method and attachment for dewatering logs
DE102009058166A1 (de) * 2009-12-15 2011-06-16 Fabritius, Hans J. Kolbenpresse Filterpresse zum Trennen von dick/dünn
EP2563579A1 (de) 2010-04-26 2013-03-06 MAG Aerospace Industries, Inc. Flüssigextraktion für einen müllverdichter
CN103501831B (zh) * 2010-12-23 2016-08-24 R·凯伦斯盖 手术中的血液回收系统
ITFI20110047A1 (it) * 2011-03-30 2012-10-01 Mp Costruzioni & Restauri S R L Dispositivo per il trattamento di rifiuti
US8740177B2 (en) 2011-07-05 2014-06-03 Rain Bird Corporation Eccentric diaphragm valve
US9539674B2 (en) 2013-11-22 2017-01-10 Rain Bird Corporation Clog resistant valve port and methods relating to same
EP2886179A1 (de) * 2013-12-19 2015-06-24 Biometa Finland Oy Verfahren und Ausrüstung zur Vorverarbeitung von organischer Materie
CN108455749B (zh) * 2017-02-22 2024-04-26 郑百祥 一种对含有固体物的污水处理设备
CN107381683B (zh) * 2017-09-14 2021-04-09 黑龙江水运建设发展有限公司 一种用于水力发电中浑浊污水的过滤装置
CN107715533B (zh) * 2017-11-30 2023-12-26 山东赛恩环保设备有限公司 一种防堵塞的污水处理装置
CN108773960A (zh) * 2018-07-09 2018-11-09 刘盈 一种含盐高浓度有机废水处理装置及方法
CN110013711B (zh) * 2019-03-25 2024-04-16 淮北矿业股份有限公司 一种方便清理的瓦斯抽采系统滤渣器
CN110550771A (zh) * 2019-07-22 2019-12-10 巴州华洋石油技术服务有限公司 一种废弃水基钻井液的处理系统
CN110787513A (zh) * 2019-12-14 2020-02-14 安徽海豚生物科技有限公司 一种控释肥光亮剂生产用过滤装置
SE544566C2 (en) * 2020-01-31 2022-07-19 Hydria Water Ab A separation device and method to separate contaminants from contaminated water
CN111643948A (zh) * 2020-06-09 2020-09-11 长江水利委员会长江科学院 一种适于多组土壤或沉积物浸提液同时过滤的装置及方法
GB202010962D0 (en) * 2020-07-16 2020-09-02 Sem Energy Ltd Apparatus & method
CN111704363A (zh) * 2020-07-21 2020-09-25 青岛青力环保设备有限公司 一种新型岩棉生产线及生产工艺
CN112337169A (zh) * 2020-10-22 2021-02-09 丁莹 一种翻转清洁式水性粘合剂过筛装置
CN112807787A (zh) * 2021-02-06 2021-05-18 王丽 一种生物收集用过滤设备
CN113274794B (zh) * 2021-06-07 2023-05-09 黔南高新区绿色化工技术研究院有限公司 养殖废水中氨氮处理系统的过滤装置
CN114177677B (zh) * 2021-12-20 2022-06-24 河津市炬华铝业有限公司 一种活性氧化铝生产用压滤装置及其压滤方法
CN114349552B (zh) * 2022-01-20 2022-10-28 吉林省德信生物工程有限公司 一种基于养牛场生态养殖用环保发酵系统
CN117446891B (zh) * 2023-12-22 2024-03-08 科瑞科技(陕西)有限公司 一种含盐废水低温强制循环蒸发结晶装置及工艺
CN117779911A (zh) * 2023-12-27 2024-03-29 上海勘测设计研究院有限公司 一种厂房废水排水装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524789A (en) * 1978-08-12 1980-02-22 Mori Tekkosho:Kk Method for squeezing and dehydration
DE2852923C2 (de) * 1978-12-07 1983-06-23 Hans F. 7120 Bietigheim-Bissingen Arendt Taktpresse zur Entwässerung von Naßwäsche
US4346653A (en) * 1980-02-22 1982-08-31 General Defense Corporation Method and apparatus for refuse disposal
US4343233A (en) * 1980-03-31 1982-08-10 Burgin Kermit H Apparatus for producing and collecting a liquid extract and a dry by-product from a mash
US4347137A (en) * 1981-06-17 1982-08-31 Norwood Minerals, Inc. Apparatus for consolidation of slurries of solid particulate materials
US4676079A (en) * 1984-10-19 1987-06-30 Herbert Kannegiesser Gmbh & Co. Appliance for draining washed laundry articles
AT384954B (de) * 1986-09-11 1988-02-10 Simmering Graz Pauker Ag Hochdruckgefaess mit stampfeinrichtung
US4995972A (en) * 1988-03-03 1991-02-26 Kramer Timothy A Method and apparatus for removing liquid from permeable material
GB2266671B (en) * 1992-04-28 1995-07-26 D & C Ltd Filter apparatus
FR2718054B1 (fr) * 1994-03-31 1996-05-03 Atochem Elf Sa Appareil pour la séparation par filtration d'une phase solide et d'une phase liquide à partir d'une boue, procédé de filtration correspondant et utilisation dudit appareil pour le traitement du lisier.

Also Published As

Publication number Publication date
EP0838254B1 (de) 2001-07-04
FR2755034B1 (fr) 1998-12-04
JPH10128016A (ja) 1998-05-19
DK0838254T3 (da) 2001-10-22
ES2160220T3 (es) 2001-11-01
KR19980032385A (ko) 1998-07-25
FR2755034A1 (fr) 1998-04-30
US6110388A (en) 2000-08-29
EP0838254A1 (de) 1998-04-29
CA2211817A1 (fr) 1998-04-25
ATE202719T1 (de) 2001-07-15
DE69613699T2 (de) 2002-05-08

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Legal Events

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee