EP0609562A1 - Keramischer Spülstein für Stahlbehandlungspfannen - Google Patents

Keramischer Spülstein für Stahlbehandlungspfannen Download PDF

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Publication number
EP0609562A1
EP0609562A1 EP93120965A EP93120965A EP0609562A1 EP 0609562 A1 EP0609562 A1 EP 0609562A1 EP 93120965 A EP93120965 A EP 93120965A EP 93120965 A EP93120965 A EP 93120965A EP 0609562 A1 EP0609562 A1 EP 0609562A1
Authority
EP
European Patent Office
Prior art keywords
sink
recess
connection plate
ceramic
connecting plate
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Withdrawn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
EP93120965A
Other languages
German (de)
English (en)
French (fr)
Inventor
Diethardt Küppers
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.)
Beck U Kaltheuner Feuerfeste Erzeugnissegmbh & Co KG
Original Assignee
Beck U Kaltheuner Feuerfeste Erzeugnissegmbh & Co KG
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 Beck U Kaltheuner Feuerfeste Erzeugnissegmbh & Co KG filed Critical Beck U Kaltheuner Feuerfeste Erzeugnissegmbh & Co KG
Publication of EP0609562A1 publication Critical patent/EP0609562A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C5/462—Means for handling, e.g. adjusting, changing, coupling

Definitions

  • the invention relates to a ceramic sink for pig iron and steel treatment pans, which is connectable to a gas supply pipe having a connecting plate.
  • a purge block is described, through which the purge gas directly, i.e. into the steel treatment pan without using a flushing cone.
  • the known sink is traversed by a large number of gas passage openings which open into a connecting pin formed on the bottom of the sink.
  • a connecting sleeve which has a gas supply pipe, is screwed onto this connecting pin and thus brought into sealing contact.
  • This sink is built directly into the steel treatment pan and is characterized by a long service life.
  • the innovation is based on the task of creating a new sink which avoids the disadvantages of the prior art.
  • the object is achieved by the ceramic sink specified in protection claim 1.
  • the present innovation enables the gas supply pipe with the connecting plate to be integrated in the stone, so that the flushing stone sits flush on the pan base during operation.
  • the rinsing block according to the innovation with the integral gas supply pipe is extremely temperature and shock resistant and thus has the necessary functionality during the entire pan journey.
  • the new sink When installing a steel treatment pan, the new sink is built directly into the bottom of the pan or the wall of the pan and survives a pan trip, i.e. the sink is only removed when the steel treatment pan is torn off.
  • connection plate and in the sink in the area of the recess a plurality of receiving openings are provided for receiving fastening devices, with the aid of which the connection plate can be loaded against the surface of the recess facing the connection plate surface. It has been found to be particularly advantageous if drop-in anchors are provided in the receiving openings formed in the sink and that the fastening devices are designed as cylinder screws which can be screwed into the drop-in anchor through the connecting plate.
  • connection plate The formation of a screwable connection between the connection plate and the sink is a particularly simple and easy-to-use form of a detachable connection.
  • the depth of the recess is at least the height of the connection plate corresponds.
  • connection plate is completely received in the stone and thus no external stresses are subjected to it.
  • connection plate surface is provided between the connection plate surface and the surface of the recess facing the connection plate surface.
  • the seal is a refractory material or consists of metal.
  • seals makes it possible to even out any unevenness in the sink in the area of the recess and in this way optimizes the seal.
  • connection plate it has been found to be advantageous for the connection plate to have a circular outer circumference when viewed from above.
  • connection plate has been found to be particularly easy to manufacture and handle during operation.
  • the flushing unit according to the invention shown in FIGS. 1 and 2 consists of a ceramic flushing block 1 with a recess 15 formed on the flushing stone base 11 located on the outside.
  • the sink 1 is traversed by a plurality of gas passage openings 3 which open into the stone surface opposite the sink floor 11.
  • This stone surface corresponds to the side of the sink 1, which is in direct contact with the molten steel after installation in the steel treatment pan.
  • the dimensions of the recess 15 are dimensioned such that the sealing plate 4 is completely received by the recess 15 and does not protrude over the sink base 11, ie, the depth of the recess 15 in B corresponds at least to the height of the connecting plate 4. In operation, the sink closes so flush with the bottom of the pan.
  • the connecting plate 4 is penetrated in the middle by a gas supply pipe 5 which is flush with the connecting plate surface and is welded to the connecting plate 4.
  • the connecting plate 4 In order to connect the connecting plate 4 to the sink, the connecting plate 4 is penetrated by a plurality of receiving openings in the vicinity of its outer circumference. Likewise, receiving openings are formed in the sink 1 in the region of the recess 15 at positions corresponding to the receiving openings of the connecting plate. As an additional fastening measure, impact anchors 16 are inserted into the receiving openings formed in the sink.
  • connection plate 4 by means of recessed in the connection plate 4 socket head screws to the Terminal plate surface facing surface of the recess is moved and finally pressed against this. In this way, a tight connection between the sink and the gas supply pipe 5 is created.
  • connection plate surface between the connection plate surface and the surface 18 of the recess facing this surface a seal 9, e.g. made of refractory material or metal, preferably copper.
  • the seal 9 is limited to the surface areas of the connection plate top and the recess in which the connection plate 4 is not penetrated by the gas supply pipe 5.
  • the seal 9 is limited to the surface areas of the connection plate surface which are not in the immediate vicinity of the gas supply pipe 5, so that a gas distribution space 8 is created which ensures an unimpeded gas flow from the gas supply pipe 5 into the gas passage openings 3 of the sink 1.
  • the purging gas is passed from a gas source through the gas supply pipe 5 into the gas distribution space 8 and from there through the gas passage openings 3 to the purging stone surface, from where the steel melt enters.
  • the gas passage openings can be designed as lamellae in the form of thin slots, generated by directional porosity or formed by holes of any shape.
  • the size of the rinsing stones according to the invention correspond to the stones which are customary for steel treatment pans and are made from materials which are customary for this application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP93120965A 1993-02-04 1993-12-27 Keramischer Spülstein für Stahlbehandlungspfannen Withdrawn EP0609562A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9301563U 1993-02-04
DE9301563U DE9301563U1 (de) 1993-02-04 1993-02-04 Keramischer Spülstein für Stahlbehandlungspfannen

Publications (1)

Publication Number Publication Date
EP0609562A1 true EP0609562A1 (de) 1994-08-10

Family

ID=6888988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93120965A Withdrawn EP0609562A1 (de) 1993-02-04 1993-12-27 Keramischer Spülstein für Stahlbehandlungspfannen

Country Status (2)

Country Link
EP (1) EP0609562A1 (xx)
DE (1) DE9301563U1 (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2893992A1 (de) * 2014-01-09 2015-07-15 Refractory Intellectual Property GmbH & Co. KG Gasspül-Element und zugehöriges Gasanschluss-Element

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967617C (de) * 1948-12-02 1957-11-28 Erwin Holweg Dr Ing Gasmetallurgisches Verfahren zur Verbesserung von Metallschmelzen, insbesondere von Stahl- und Gusseisenschmelzen
LU70375A1 (xx) * 1973-07-13 1974-10-17
DE3246937A1 (de) * 1981-12-31 1983-07-07 GR-Stein Refractories Ltd., Sheffield Feuerfeste formteile und verfahren zu ihrer herstellung
EP0363651A1 (de) * 1988-10-01 1990-04-18 Didier-Werke Ag Gasspülstein
EP0364724A1 (de) * 1988-10-01 1990-04-25 Didier-Werke Ag Gasspüleinrichtung
DE9109152U1 (de) * 1991-07-24 1991-09-12 Beck u. Kaltheuner Feuerfeste Erzeugnisse GmbH & Co KG, 5970 Plettenberg Keramischer Spülstein für Stahlbehandlungspfannen
EP0502256A2 (de) * 1991-03-06 1992-09-09 BECK u. KALTHEUNER, FEUERFESTE ERZEUGNISSE GmbH & CO. KG Spüleinrichtung für Stahlbehandlungspfannen
EP0521371A1 (de) * 1991-06-28 1993-01-07 Veitsch-Radex Aktiengesellschaft für feuerfeste Erzeugnisse Gasspülstein

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967617C (de) * 1948-12-02 1957-11-28 Erwin Holweg Dr Ing Gasmetallurgisches Verfahren zur Verbesserung von Metallschmelzen, insbesondere von Stahl- und Gusseisenschmelzen
LU70375A1 (xx) * 1973-07-13 1974-10-17
DE3246937A1 (de) * 1981-12-31 1983-07-07 GR-Stein Refractories Ltd., Sheffield Feuerfeste formteile und verfahren zu ihrer herstellung
EP0363651A1 (de) * 1988-10-01 1990-04-18 Didier-Werke Ag Gasspülstein
EP0364724A1 (de) * 1988-10-01 1990-04-25 Didier-Werke Ag Gasspüleinrichtung
EP0502256A2 (de) * 1991-03-06 1992-09-09 BECK u. KALTHEUNER, FEUERFESTE ERZEUGNISSE GmbH & CO. KG Spüleinrichtung für Stahlbehandlungspfannen
EP0521371A1 (de) * 1991-06-28 1993-01-07 Veitsch-Radex Aktiengesellschaft für feuerfeste Erzeugnisse Gasspülstein
DE9109152U1 (de) * 1991-07-24 1991-09-12 Beck u. Kaltheuner Feuerfeste Erzeugnisse GmbH & Co KG, 5970 Plettenberg Keramischer Spülstein für Stahlbehandlungspfannen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M. OBERBACH ET AL.: "Feuerfeste Werkstoffe .......", TECHNISCHE MITTEILUNGEN, vol. 69, no. 12, December 1976 (1976-12-01), ESSEN, DE, pages 620 - 628 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2893992A1 (de) * 2014-01-09 2015-07-15 Refractory Intellectual Property GmbH & Co. KG Gasspül-Element und zugehöriges Gasanschluss-Element
WO2015104079A1 (de) * 2014-01-09 2015-07-16 Refractory Intellectual Property Gmbh & Co. Kg Gasspül-element und zugehöriges gasanschluss-element
US9879916B2 (en) 2014-01-09 2018-01-30 Refractory Intellectual Property Gmbh & Co. Kg Gas purging element and associated gas connection element

Also Published As

Publication number Publication date
DE9301563U1 (de) 1993-03-25

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