EP2836282A1 - Procédé et dispositif pour filtrer du liquide - Google Patents

Procédé et dispositif pour filtrer du liquide

Info

Publication number
EP2836282A1
EP2836282A1 EP13717001.5A EP13717001A EP2836282A1 EP 2836282 A1 EP2836282 A1 EP 2836282A1 EP 13717001 A EP13717001 A EP 13717001A EP 2836282 A1 EP2836282 A1 EP 2836282A1
Authority
EP
European Patent Office
Prior art keywords
scraper
screen
liquid
sieve
guide tube
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.)
Withdrawn
Application number
EP13717001.5A
Other languages
German (de)
English (en)
Inventor
Christoph Umbach
Peter Lipsch
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.)
Schroeder Maschinenbau GmbH
Original Assignee
Schroeder Maschinenbau 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 Schroeder Maschinenbau GmbH filed Critical Schroeder Maschinenbau GmbH
Publication of EP2836282A1 publication Critical patent/EP2836282A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B01D29/56—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 series connection
    • B01D29/58—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 series 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
    • B01D29/6469—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

Definitions

  • the invention relates to a method and a device for filtering liquid, in particular pickle, in which the liquid passes through a sieve and the surface of the screen is periodically doctored off with a scraper.
  • the brine is injected into the meat with the help of hollow needles.
  • the brine which does not remain in the meat, is collected, filtered and recirculated.
  • the filtering serves to remove solids such as small meat particles and the like, which have detached from the Pökelgut from the brine.
  • the object of the invention is to provide a method for filtering liquid, which allows a space-saving design of the filter device, an efficient and gentle filtering of the liquid as well as an improved dewatering of the filter cake.
  • This object is achieved in that the screen has a flat surface and the scraper is reciprocally moved over this surface.
  • the flat design of the screen allows a space-saving design of the filter device and allows in particular the construction of a compact multi-stage filter Device in which several sieves are arranged one above the other at short intervals.
  • Another advantage is that the liquid passes through the sieve only once in each screening stage. This counteracts denaturation in liquids containing high molecular weight additives. In addition, the entry of air into the liquid is reduced, which reduces the foaming and improves the pumpability of the liquid.
  • a magnetic linear drive is preferably used, in which the drive mechanism is encapsulated in a guide tube.
  • Drive units of this type are known in which a reciprocating movement of a drive magnet within the guide tube is generated mechanically, for example with a spindle, electromechanically by means of a linear motor or optionally also pneumatically or hydraulically.
  • a follower magnet is slidably arranged, which follows the movement of the drive magnet in the interior of the tube and the driving force to the driven member, in the present invention case the scraper transfers.
  • Fig. 1 is a schematic, vertical section through an inventive
  • Fig. 2 the curing device according to Fig. 1 in plan view.
  • the filter device has a pump and drive housing (10) to which a filter cascade with three screens 12 is mounted on the visible front in Fig. 1.
  • the sieves 12 are formed as flat sieves and thus have a flat surface. They are supported with their opposite lateral edges on guide rails 14, which protrude from the pump and drive housing 10 and extend to a spaced apart support frame 16 (Fig. 2).
  • the individual sieves 12 are drawer-like extendable forward over the support frame 16 addition, so that they can be easily removed for cleaning purposes.
  • Fig. 2 shows one of the sieves 12 in a slightly extended position.
  • the sieves 12 are formed as edge gap filters whose column 18 extend transversely to the guide rails 14.
  • the wires 12 differ in their gap width, the gap width decreases from top to bottom.
  • a trough 20 with a flat, perforated bottom is arranged above the topmost screen 12.
  • the bottom sieve 12 of the cascade is underlaid by a collecting funnel 22 over its entire surface.
  • the liquid to be filtered for example, from a brine, not recirculated brine, is pumped by means of a pump unit, not shown in the pump and drive housing 10 via an inlet 24 into the tub 20 and distributed over the perforated bottom evenly over the surface on the top Sieve 12 delivered.
  • the liquid then passes sequentially through the sieves 12 and is finally collected in the collecting funnel 22 and pumped back by means of a not shown further pumping unit to the pickling machine or in a reservoir.
  • each of the screens 12 Associated with each of the screens 12 is a scraper 26 which reciprocates in the direction parallel to the columns 18 of the screens over the upper surface of the screen in question to strip the screen projection from the surface of the screen.
  • the scraper 26 is fixed to the underside of a boom 28, which starts from a housed in the pump and drive housing 10 linear actuator 30.
  • the linear drive 30 has a guide tube 32, in which, for example by means of a spindle drive, not shown, a drive magnet 34 is reciprocally movable.
  • a drive magnet 34 On the guide tube 32 is a low-friction and without tilting a follower magnet 36 is guided, to which one end of the boom 28 is attached to the scraper 26. Magnetic interaction between the drive magnet 34 and the follower magnet 36 ensures that the scraper 26 always follows the movement of the drive magnet 34.
  • the linear drives 30 for the different screens 12 associated scraper 26 are dependent on each controllable.
  • the speed of movement of the scraper 26 and the stroke length, ie, the position of the reversal points, are individually adjustable for each scraper.
  • a scraper When a scraper reaches its reversal point at one end of the wire 12 and reverses its direction of travel, it deposits the filter cake stripped from the wire near the side edge on the wire. While the scraper performs the next cycle, the filter cake on the screen can drain. Towards the end of the next stroke of the scraper 26 new filter cake is then pushed into the edge region of the screen and the previously deposited filter cake is pushed further out and thereby slightly compressed and further dehydrated.
  • each guide rail 14 an overflow plate 38 is arranged, which falls obliquely on the inside to the screen surface and falls steeper on the outside to the outside.
  • These overflow plates 38 form sleepers that must be overcome by the filter cake when it is gradually displaced by means of the scraper 26 to the outside.
  • the compaction and dewatering of the filter cake is further improved, so that the filter cake only has a very low liquid content, when it finally slips off the outer edge of the overflow plate 38 and is collected in a collecting container, not shown.
  • the reversal points of the scraper 26 may be close to the overflow plates 38 and the scraper may be set at a low speed so that the filter cake has sufficient time for dewatering. Between the reversal points, there then remains a large area in which the liquid can pass through the sieve 12.
  • a higher number of cycles can be selected for the scraper 26 in order to effectively free the screen surface of solids. In this case, the stroke length of the scraper can be reduced, so that the reversal points each have a greater distance from the overflow plate 38. In this way, the residence time of the filter cake is extended on the screen, thus improving the drainage.

Landscapes

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

Abstract

L'invention concerne un procédé pour filtrer du liquide selon lequel le liquide traverse un crible (12) et la surface du crible est périodiquement raclée avec une racle (26), caractérisé en ce que le crible (12) présente une surface plane et la racle (26) est déplacée selon un mouvement de va-et-vient sur cette surface.
EP13717001.5A 2012-04-13 2013-04-08 Procédé et dispositif pour filtrer du liquide Withdrawn EP2836282A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210103247 DE102012103247A1 (de) 2012-04-13 2012-04-13 Verfahren und Vorrichtung zum Filtern von Flüssigkeit
PCT/EP2013/057291 WO2013153023A1 (fr) 2012-04-13 2013-04-08 Procédé et dispositif pour filtrer du liquide

Publications (1)

Publication Number Publication Date
EP2836282A1 true EP2836282A1 (fr) 2015-02-18

Family

ID=48139914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13717001.5A Withdrawn EP2836282A1 (fr) 2012-04-13 2013-04-08 Procédé et dispositif pour filtrer du liquide

Country Status (3)

Country Link
EP (1) EP2836282A1 (fr)
DE (1) DE102012103247A1 (fr)
WO (1) WO2013153023A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104587722A (zh) * 2015-01-14 2015-05-06 钮德明 自清洗刮板排渣过滤器
CN109499173B (zh) * 2019-01-28 2021-06-15 郑州工程技术学院 一种硅油生产用自清理式多级高效过滤设备
CN111569483B (zh) * 2020-04-07 2022-05-24 青岛奥利普自动化控制系统有限公司 一种液体净化装置
CN112915617A (zh) * 2021-03-25 2021-06-08 北京道成维优环境科技有限公司 一种集约式过滤设备
CN114681973A (zh) * 2022-03-18 2022-07-01 中峰化学有限公司 基于醋酸纤维素催化反应用过滤除杂装置
CN116272031B (zh) * 2023-01-31 2023-08-18 滨州金淼水质检测有限公司 一种水质检测用大颗粒杂质过滤装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5584509A (en) * 1978-09-18 1980-06-25 Toyo Filter Kogyo Kk Liquid filter
US4419239A (en) * 1982-04-14 1983-12-06 Frankl Gerald P Apparatus for recovering and recycling animal waste
IT1255104B (it) * 1992-05-25 1995-10-19 D'uva Antonio Dispositivo di drenaggio autopulente,per la separazione di un liquido da un prodotto alimentare in pezzi
US5779887A (en) * 1997-01-07 1998-07-14 Claude Laval Corporation Gravity screen with burden removal and pore-cleaning means
JP3188656B2 (ja) * 1997-07-10 2001-07-16 啓一 小沢 固液分離処理装置
DE102004004120B3 (de) * 2004-01-26 2005-08-18 Schröder Maschinenbau KG Filteranlage für Flüssigkeiten
DE102010028380A1 (de) * 2010-04-29 2011-11-03 Wvg Kainz Gmbh Verfahren und Anlage zur Reinigung verschmutzter Flüssigkeiten
EP2384802A1 (fr) 2010-05-07 2011-11-09 Metalquimia S.A. Dispositif de filtrage de liquides pouvant être appliqué sur une machine d'injection de matériaux de type viande

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013153023A1 *

Also Published As

Publication number Publication date
WO2013153023A1 (fr) 2013-10-17
DE102012103247A1 (de) 2013-10-17

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