EP0452654A2 - Installation pour épurer un bain de métal liquide avec strainers de céramique - Google Patents

Installation pour épurer un bain de métal liquide avec strainers de céramique Download PDF

Info

Publication number
EP0452654A2
EP0452654A2 EP91103278A EP91103278A EP0452654A2 EP 0452654 A2 EP0452654 A2 EP 0452654A2 EP 91103278 A EP91103278 A EP 91103278A EP 91103278 A EP91103278 A EP 91103278A EP 0452654 A2 EP0452654 A2 EP 0452654A2
Authority
EP
European Patent Office
Prior art keywords
filter
filters
closure
melt
opening
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Withdrawn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
EP91103278A
Other languages
German (de)
English (en)
Other versions
EP0452654A3 (en
Inventor
Heinz Buhr
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.)
Didier Werke AG
Original Assignee
Didier Werke AG
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 Didier Werke AG filed Critical Didier Werke AG
Publication of EP0452654A2 publication Critical patent/EP0452654A2/fr
Publication of EP0452654A3 publication Critical patent/EP0452654A3/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
    • B22D43/001—Retaining slag during pouring molten metal
    • B22D43/004—Retaining slag during pouring molten metal by using filtering means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/24—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings characterised by a rectilinearly movable plate

Definitions

  • the invention relates to a device for cleaning molten metal, in particular molten steel, during casting by means of ceramic filters arranged in a refractory support body.
  • the object of the present invention is to replace ceramic filters using refractory devices used in the casting of steel with simple To accomplish means appropriate to the operation and thus to facilitate the filtering of the melt.
  • At least one filter is assigned to an interchangeable, melt-flowable, refractory wear part of a pouring closure for metallurgical vessels.
  • Refractory wear parts for pouring closures include sleeves, pipes, closure plates and the like, which have to be replaced by the flowing melt as a result of destructive stress and are therefore arranged interchangeably in the closure.
  • wear parts as a filter carrier, it is possible, if the casting process is switched off for a short time, to easily replace clogged filters and then continue the casting process. This results in a considerably expanded field of application for the use of ceramic molten steel filters, particularly in continuous and ingot casting.
  • Spout closures used there can easily take over a desired filtration of melt with their wear parts, especially since a wear part with ceramic filters held in the flow opening forms a conveniently manageable structural unit.
  • the filters are advantageously arranged in conical and / or cylindrical extensions of the flow openings of the wearing parts in order to create larger filter space and secure support bases for the filters.
  • Another expedient training is to connect the filter interchangeably with the replaceable wear part, so that, for example, on one usable wear part a clogged filter can be replaced by a new filter.
  • a wearing part has a plurality of filters of different porosity, connected in series, with the aim of producing a desired filter capacity with gradual filtration.
  • a filter can preferably be designed as an absorption or reaction filter for removing contaminants dissolved in the melt.
  • care must be taken that the filter capacity meets the desired degree of filtering of the melt quantity to be filtered and that the storage of the filter goes as far as possible with the wear of the wearing parts.
  • a spout closure in the form of a push-through slide closure which according to the invention has filters that are equipped with filters, can be placed in series with other, differently performing slide plates on rails under a vessel spout opening and can be pushed out again .
  • a closure one can If necessary, change the filter without temporarily switching off a casting process, because a blocked filter or orifice plate can be pushed out by a new filter plate, which is equivalent to an optimal process.
  • 1 denotes a metallurgical vessel, for example a distribution vessel.
  • the bottom of the vessel 1 has a pouring opening 2, which is formed by a base stone 3 and the inlet sleeve 5 of a magazine slide closure 4.
  • a closure 4 which is not shown in detail for the sake of simplicity, only the stationary base plate 6 downstream of the inlet sleeve 5 and a rail track 7 can be seen, on which rectangular slide plates which can be placed and removed again sealingly under the pouring opening 2 can be moved, e.g. an opening plate 8 and a closing plate 9.
  • the opening plate 8 has a function under the pouring opening 2 and the closing plate 9 in reserve, so that the closure can be closed if necessary, by moving the closing plate 9 into the function-exercising position below the pouring opening 2, while simultaneously displacing the opening plate 8 to for removal from the closure 4.
  • Characteristic of the closure 4 is the use of a filter 12 in the orifice plate, which is usually equipped solely with a flow opening 13.
  • the filter 12 is arranged transversely to the flow opening 13 between two horizontally superimposed plate pieces 14 and 15 held by the sheet metal jacket 10 in a recess 16 of the upper plate piece 14 and forms with the opening plate 8 a replaceable wear part assembly which filters out melt flowing out of the vessel 1 .
  • This can be done via a full emptying of the vessel or, for example, in the final phase of an emptying, in order to prevent any contamination that may be present to a greater extent with the melt from getting into a form to be filled.
  • a filterless opening plate 8 can be used by displacing a closing plate 9 from the closing functional position in the direction of arrow A.
  • the orifice plate 8 with the built-in filter 12 is designed such that the time elapsed until the filter 12 becomes blocked corresponds approximately to the life of the refractory plate material.
  • a stopper 22 closes a spout 23 to which the pouring tube 21 can be exchangeably connected via a seal 24 by means of an indicated device 25.
  • the tube 21 has a conical widening 27 at the inlet end of the flow opening 26, into which a basket-shaped prefilter 28 for coarser impurities and in the flow direction below it a filter 29 for finer impurities are inserted.
  • the total filter performance to be applied is divided into two filters 28 and 29, the service life of which is matched to the service life of the pouring tube 21.
  • a plate-shaped filter 31 is arranged in the outlet sleeve 32 of the slide plate 33, which with the stationary, the Bottom plate 35 forming the end of the vessel outlet channel 34 interacts according to the closure.
  • the plate-shaped filter 31 is supported diagonally in the flow opening 36 in a fitting groove 37 of the outlet sleeve 32 and has a circumferential elliptical shape provided by the diagonal position, so that there is an enlarged filter area compared to the cross section of the flow opening 36.
  • the wear parts housed together in the metallic slide frame 38, outlet sleeve 32 with filter 31 and slide plate 33 and the base plate 35 can be replaced at the same time.
  • the outlet sleeve 43 has a recess 48 with a basket-shaped filter 50 hanging in the flow opening 49, which filter can optionally be replaced by a sealing ring that fits into the recess 48 for free unfiltered flow of the melt.
  • the outlet sleeve 43 carries at the outlet end a filter unit 51 with a circular plate-shaped filter 52, which is surrounded on the circumferential area by sealing material 53 in an open sheet metal holder 54, which is screwed on the open side via thread 55 to the sheet metal jacket 44 of the outlet sleeve 43 is.
  • the interchangeable spout 40 can filter the melt either with a filter or with two filters, with the filter unit 51 which is easy to use if required.
  • the outlet sleeve 60 according to FIG. 5, which can be used in an interchangeable spout, has a multi-stage filter 61, which is combined in a packet-like manner Filter 66, so that in addition to the mechanical filtering of solids by filters 64 and 66, dissolved contaminants are also removed from the melt by filter 65.
  • a conical filter 70 is installed in a stationary base plate 71 of a slide closure.
  • the flow opening 72 on the inlet side has a conical extension 73, which is a mirror image, to an outlet-side extension 74 of the flow opening 75 of the inlet sleeve 76.
  • the slide plate 77 which is adjustable for opening, closing and throttling the closure, lies sealingly.
  • the melt flow flowing through the wearing parts 71, 76, 77 is expanded at the extension 74 of the flow opening 75 of the inlet sleeve 76 to a cross-sectional area which coincides with the input-side surface of the filter 70, which is increased in capacity due to the taper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Filtering Materials (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
EP19910103278 1990-04-14 1991-03-05 Installation for purifying a metal melting bath with ceramic filter Withdrawn EP0452654A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4012093 1990-04-14
DE4012093A DE4012093C1 (fr) 1990-04-14 1990-04-14

Publications (2)

Publication Number Publication Date
EP0452654A2 true EP0452654A2 (fr) 1991-10-23
EP0452654A3 EP0452654A3 (en) 1992-12-16

Family

ID=6404427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910103278 Withdrawn EP0452654A3 (en) 1990-04-14 1991-03-05 Installation for purifying a metal melting bath with ceramic filter

Country Status (6)

Country Link
US (1) US5139238A (fr)
EP (1) EP0452654A3 (fr)
JP (1) JPH06340931A (fr)
CN (1) CN1055769A (fr)
DE (1) DE4012093C1 (fr)
ZA (1) ZA912557B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102397989A (zh) * 2010-09-14 2012-04-04 六和轻合金（昆山）有限公司 一种模具汤口以及铸造模具
WO2013029896A1 (fr) * 2011-09-02 2013-03-07 Asml Netherlands B.V. Source de rayonnement et procédé pour appareil lithographique pour fabrication de dispositif

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304621C2 (de) * 1993-02-16 1995-05-04 Bruehl Aluminiumtechnik Ausgußverschluß
CA2198301C (fr) * 1997-02-24 2004-09-14 Alcan International Limited Dispositif de filtration portatif du metal liquide utilise pour l'analyse des inclusions
DE19753026C1 (de) * 1997-11-17 1998-12-10 Mannesmann Ag Ausgießeinrichtung für metallurgische Gefäße
DE19900074A1 (de) * 1999-01-05 2000-07-06 Didier Werke Ag Stellglied am Auslauf eines Schmelzengefäßes
US20030173394A1 (en) * 2002-03-14 2003-09-18 The Boeing Company System and filter for filtering hard alpha inclusions from reactive metal alloys
EP1620720B1 (fr) * 2003-05-06 2008-10-15 Alcan International Limited Dispositif et procede de mesure des inclusions metalliques
US20040238152A1 (en) * 2003-05-27 2004-12-02 Edgardo Campomanes Modular gating system for foundries
CN101165003B (zh) * 2007-09-06 2013-01-16 济南圣泉倍进陶瓷过滤器有限公司 复合孔径陶瓷过滤器的制备方法
WO2011017643A1 (fr) 2009-08-06 2011-02-10 Rolls-Royce Corporation Dispositif à filtre pour liquide
EP2490846B1 (fr) * 2009-10-21 2015-11-25 Stopinc Aktiengesellschaft Unité réfractaire destinée à un obturateur à tiroir situé sur la busette de coulée d'un contenant pour métal en fusion
US9029813B2 (en) 2011-05-20 2015-05-12 Asml Netherlands B.V. Filter for material supply apparatus of an extreme ultraviolet light source
DE102011120416A1 (de) * 2011-12-08 2013-06-13 Ask Chemicals Gmbh Filter für die Filtrierung von flüssigen Metallen mit einem Filtergehäuse und einem in dem Filtergehäuse aufgenommenen hülsenförmigen Filterelement
DE102016106708B4 (de) * 2016-04-12 2019-06-13 Technische Universität Bergakademie Freiberg Stranggieß-Verfahren mit keramischen Filtern oder Filtersystemen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE547568C (de) * 1932-04-08 Julius Grub Dipl Ing Bodenverschluss fuer Giesspfannen
DE1935401C2 (de) * 1968-07-12 1973-12-20 Interstop Ag, Zug (Schweiz) Schiebeverschluß für mit einer Bodenausgußöffnung versehene Gießpfannen oder dergleichen Behälter zum Gießen von flüssigen Metallen, insbesondere Stahl
SU899273A1 (ru) * 1980-05-13 1982-01-23 Уральский ордена Трудового Красного Знамени политехнический институт им.С.М.Кирова Устройство дл дегазации сплавов
JPS6393466A (ja) * 1986-10-06 1988-04-23 Kubota Ltd 注湯取鍋用溶湯注入器
DE3700107C2 (fr) * 1987-01-03 1989-06-08 Stettner & Co, 8560 Lauf, De

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4573616A (en) * 1982-05-24 1986-03-04 Flo-Con Systems, Inc. Valve, clamp, refractory and method
US4789140A (en) * 1982-06-11 1988-12-06 Howmet Turbine Components Corporation Ceramic porous bodies suitable for use with superalloys
JPS61117182A (ja) * 1984-11-08 1986-06-04 株式会社ブリヂストン 多孔セラミツク構造物
AU601315B2 (en) * 1988-01-30 1990-09-06 Foseco International Limited Moulds for metal casting and sleeves containing filters for use therein
US4990059A (en) * 1988-12-19 1991-02-05 Aluminum Company Of America Method for filtering liquid-phase metals
GB8916839D0 (en) * 1989-07-22 1989-09-06 Foseco Int Filters

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE547568C (de) * 1932-04-08 Julius Grub Dipl Ing Bodenverschluss fuer Giesspfannen
DE1935401C2 (de) * 1968-07-12 1973-12-20 Interstop Ag, Zug (Schweiz) Schiebeverschluß für mit einer Bodenausgußöffnung versehene Gießpfannen oder dergleichen Behälter zum Gießen von flüssigen Metallen, insbesondere Stahl
SU899273A1 (ru) * 1980-05-13 1982-01-23 Уральский ордена Трудового Красного Знамени политехнический институт им.С.М.Кирова Устройство дл дегазации сплавов
JPS6393466A (ja) * 1986-10-06 1988-04-23 Kubota Ltd 注湯取鍋用溶湯注入器
DE3700107C2 (fr) * 1987-01-03 1989-06-08 Stettner & Co, 8560 Lauf, De

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 12, no. 325 (M-737)[3172] 5. September 1988; & JP-A-63 093 466 (KUBOTA) 23. April 1988 *
SOVIET INVENTIONS ILLUSTRATED, Section Ch, Week J47, 12. Januar 1983 Derwent Publications Ltd., London, GB; Class M, AN 01668 J/47; & SU-A-899 273 (URALS KIROV POLY) 23. Januar 1982 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102397989A (zh) * 2010-09-14 2012-04-04 六和轻合金（昆山）有限公司 一种模具汤口以及铸造模具
WO2013029896A1 (fr) * 2011-09-02 2013-03-07 Asml Netherlands B.V. Source de rayonnement et procédé pour appareil lithographique pour fabrication de dispositif
US8890099B2 (en) 2011-09-02 2014-11-18 Asml Netherlands B.V. Radiation source and method for lithographic apparatus for device manufacture

Also Published As

Publication number Publication date
DE4012093C1 (fr) 1991-07-04
CN1055769A (zh) 1991-10-30
ZA912557B (en) 1992-01-29
US5139238A (en) 1992-08-18
JPH06340931A (ja) 1994-12-13
EP0452654A3 (en) 1992-12-16

Similar Documents

Publication Publication Date Title
EP0452654A2 (fr) Installation pour épurer un bain de métal liquide avec strainers de céramique
EP0409817B1 (fr) Appareil de filtrage pour séparer des matières solides et suspendues de liquides
DE4322894A1 (de) Flüssigkeitsfilter
EP0572369B1 (fr) Dispositif de filtration à nettoyage par contre-courant pour la filtration des liquides ayant haute viscosité
EP0361217B1 (fr) Filtre à rinçage à contre-courant
DE3141900A1 (de) "rueckspuelbarer filter"
EP0390742A1 (fr) Dispositif et procédé de filtration de bains de métal fondu
EP0726115A1 (fr) Panier intermédiaire
DE2555763A1 (de) Schieberartige, besonders fuer gussmetallbehaelter oder pfannen geeignete sperrvorrichtung
DE1611068C3 (de) Rückspülfilter mit zylindrischem Käfig
WO2002000373A1 (fr) Panier de coulee pour couler un metal en fusion dans une machine de coulee en bande
AT395392B (de) Verschlussplatte aus feuerfestem material fuer linear- oder drehschieberverschluesse
WO1982002150A1 (fr) Dispositif pour l'epuration des eaux
DE102007049658A1 (de) Filter
EP0798098A1 (fr) Dispositif de filtrage pour matières plastiques fondues
DE1786118A1 (de) Selbstreinigende Filtervorrichtung
DE7501309U (de) Vorrichtung zum entfernen von schlacke
DE2263539A1 (de) Spritzgussmaschine
EP0195211B1 (fr) Dispositif pour le filtrage de bains métalliques
DE4229417C2 (de) Filter
EP1093392A1 (fr) Dispositif de filtrage a plusieurs etages
DE19756687C1 (de) Verfahren und Vorrichtung zum Abscheiden von nichtmetallischen Einschlüssen aus flüssigen Metallen
DE3500866C2 (de) Wechselausguß an einem Schiebeverschluß für den Ausguß an metallurgischen Gefäßen, insbesondere Stahlgießpfannen
DE195124C (fr)
DE1241803B (de) Absperrvorrichtung zum automatischen, periodischen Entschlammen von Filterkerzen durch Rueckspuelung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19910318

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19940623