EP0522284A1 - Plaque réfractaire pour fermeture à tiroir de poches de coulée - Google Patents

Plaque réfractaire pour fermeture à tiroir de poches de coulée Download PDF

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Publication number
EP0522284A1
EP0522284A1 EP92109352A EP92109352A EP0522284A1 EP 0522284 A1 EP0522284 A1 EP 0522284A1 EP 92109352 A EP92109352 A EP 92109352A EP 92109352 A EP92109352 A EP 92109352A EP 0522284 A1 EP0522284 A1 EP 0522284A1
Authority
EP
European Patent Office
Prior art keywords
plate
closure
collar
refractory
sleeve
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.)
Granted
Application number
EP92109352A
Other languages
German (de)
English (en)
Other versions
EP0522284B1 (fr
Inventor
Walter Toaldo
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.)
Stopinc AG
Original Assignee
Stopinc 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 Stopinc AG filed Critical Stopinc AG
Publication of EP0522284A1 publication Critical patent/EP0522284A1/fr
Application granted granted Critical
Publication of EP0522284B1 publication Critical patent/EP0522284B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B22D41/28—Plates therefor

Definitions

  • the invention relates to a refractory closure plate for a sliding closure on the spout of a metal-containing vessel, consisting of a refractory plate having a flow opening with a sliding surface and a sheet metal casing surrounding the plate.
  • the sheet metal casing extends to the level of the end face of the plate facing away from the sliding surface.
  • the end of the sheet metal jacket is thus flush with this end face.
  • the adjacent sleeve is arranged both for the upper and the lower closure plate at a distance of 3 to 5 millimeters from the end face of the plate.
  • a commercially available refractory mass for example mortar, is used to seal between the plate and the sleeve. In practice, it can happen that the mortar does not perfectly over the entire front surface is distributed or that the sleeve is too far away from the plate and therefore there is too little mortar and so the seal around the flow opening is not properly made. In the worst case, this can lead to a so-called breakthrough, in which the liquid steel flows out laterally between the sleeve and the plate and, depending on the situation, can lead to total damage to the sliding closure.
  • the present invention has for its object to provide a fireproof closure plate of the type mentioned, in which the risk of breakthrough is greatly reduced with a simple and inexpensive measure and thus the operational reliability of a sliding closure with such closure plates is increased.
  • the object is achieved in that the sheet metal casing has a collar which projects beyond the refractory plate on the side facing away from the sliding surface and which surrounds the flow opening.
  • This collar according to the invention still has the surprising effect when it serves as a teaching when preparing a plate for mounting in a sliding closure, in which the mortar can be applied to the end face of the plate within this annular collar. This ensures on the one hand that this plastic mass is always applied in approximately the same amount and on the other hand it is avoided that this mass does not flow away in an uncontrolled manner when the plate is placed.
  • the annular collar is angled towards the inside. It can also be angled in such a way that it is curved inwards by 90 ° and thereby forms a spacer disk lying below the end face of the plate.
  • the collar according to the invention facing the connecting sleeve is designed such that it at least surrounds the intended joint between the plate and the sleeve.
  • the collar is advantageously protruding from the closure plate to such an extent that the connecting sleeve is surrounded by the collar with almost no play.
  • the collar of the closure plate can also protrude into an annular groove on the end face of the connecting sleeve.
  • This slide closure 10 has a metallic housing 12 which is fastened to an inner refractory lining 13 on a wall 14 of a vessel containing molten metal, for example a pan.
  • the spout 16 of the vessel is defined by a refractory sleeve 18 which can be placed in this lining 13.
  • a refractory closure plate 20 is arranged in the housing 12 in such a way that it connects to this sleeve 18 at the end at a certain distance, for example 3 to 5 millimeters.
  • This closure plate 20 which is arranged as a fixed base plate, has a sliding surface opposite it, against which a longitudinally displaceable refractory closure plate 22 is pressed.
  • the closure plate 22 is in turn inserted into a metallic slide unit 23, in which a subsequent exchangeable pouring sleeve 24 is also fastened.
  • the sleeves 18, 24 form, together with the closure plates 20, 22 in the open position of the slide closure, a flow opening 16 draining the molten metal.
  • the closure plate 22, which is designed as a slide plate, can be moved Pour molten metal in a regulated manner or by moving the plate 22 into the closed position, the melt flow can be completely interrupted.
  • the refractory closure plates 20, 22 each have a sheet metal jacket 26, 28, preferably made of steel, as well as a refractory plate mortared therein.
  • the sheet metal jacket 26, 28 each has a cylindrical centering surface 26 ′′, 28 ′′ centered around the refractory attachment of the plate and to the flow opening for the purpose of centering the plate in the housing 12 and respectively. in the slide unit 23.
  • the cylindrical centering surface 26 '', 28 '' of the sheet metal casing which is coaxial to the flow opening, has a collar 26 ', 28' projecting on the side 20 ', 22' facing away from the sliding surface of the plate, which essentially corresponds to that between the plate 20, 22 and the subsequent sleeve 18, 24 formed joint 29, 31 surrounds.
  • this gives the great advantage that, in the end, the risk of breakthrough between a plate and the sleeve can be considerably reduced.
  • this collar fulfills the task when the mortar cannot emerge laterally from the joint 29, 31.
  • the collar is provided in such a way that it is angled towards the inside and surrounds the sleeve in the set state with only a little play (0.5-3 mm). This ensures that the sleeve 18, 24, which is usually at a different distance from the plate end face 20 ', 22', is guaranteed to be surrounded by the collar. With the lower sleeve 24, there is less of this risk, because the sleeve 24 is always at a defined distance from the underside 22 'of the plate. But this sleeve 24 is also surrounded by a collar 28.
  • the plates are otherwise identical, which is known to simplify their manufacture.
  • the refractory closing plates 30, 32 shown in FIG. 2 differ from those according to FIG. 1 only in that their respective collar 36 ', 38' formed by the sheet metal jacket 36, 38 only by approximately the thickness of the sheet metal jacket to the plate end face 30 ', 32' protrudes. In this case too, it is again ensured that a defined amount of mortar can be used with this collar 36 ', 38' and that the mortar is not pushed away indefinitely when the slabs are set. Centering surfaces 36 '', 38 '' of the plates 30, 32 in turn enable their centering in the housing, respectively. in the slide unit.
  • a sliding closure 10 is again shown in a partial view, in which a refractory sleeve 43 is arranged on the inlet side, a sleeve 44 on the outlet side and two refractory closure plates 40, 42 which are displaceable in relation to one another and are located in between.
  • the identically designed closure plates 40, 42 in turn each have a sheet metal sheath 46, 48, each of which has a cylindrical centering surface 46 ′′, 48 ′′ surrounding the refractory attachment of the plate 40, 42 for centering the same and, starting therefrom, an angled inward by 90 ° Ring surface 47 ', 49' and again a collar 46 ', 47' projecting towards the plate end 40 ', 42'; which forms a ring and protrudes into an annular groove 43 ', 44' of the sleeve 43, 44.
  • the cross section of the annular groove 43 ', 44' is larger on all sides by approximately 1 mm than the cross section of the collars 46 ', 48'.
  • the refractory plates of the closure plates 50, 52 are in turn mortared in sheet metal sheaths 56, 58 and in the housing 12, respectively. inserted in the slide unit 23.
  • the closure plates 50, 52 are fastened therein by means of clamping means, not shown.
  • the plates also have so-called springs 50 ', 52' which engage in corresponding grooves in the adjoining sleeves 53, 54.
  • This tongue and groove connection has, among other things, the advantage that it creates a type of labyrinth seal, by means of which infiltration of liquid steel into the joint 59 formed and furthermore even lateral outflow of the melt is practically impossible.
  • the sheet metal casing 56, 58 has an inwardly angled collar 56 ', 58', which rests directly on the outer plate face 51, 57.
  • This collar 56 ', 58' is therefore part of the joint 59 in the manner of a spacer on its outer circumference.
  • a refractory ring for example a fiber mat, or a combination could also be used for the joint 59.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Sliding Valves (AREA)
EP92109352A 1991-07-12 1992-06-03 Plaque réfractaire pour fermeture à tiroir de poches de coulée Expired - Lifetime EP0522284B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2081/91 1991-07-12
CH2081/91A CH683969A5 (de) 1991-07-12 1991-07-12 Feuerfeste Verschlussplatte am Ausguss eines Metallschmelze enthaltenden Gefässes.

Publications (2)

Publication Number Publication Date
EP0522284A1 true EP0522284A1 (fr) 1993-01-13
EP0522284B1 EP0522284B1 (fr) 1996-08-28

Family

ID=4225464

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92109352A Expired - Lifetime EP0522284B1 (fr) 1991-07-12 1992-06-03 Plaque réfractaire pour fermeture à tiroir de poches de coulée

Country Status (9)

Country Link
US (1) US5251794A (fr)
EP (1) EP0522284B1 (fr)
JP (1) JPH05185203A (fr)
CA (1) CA2070798A1 (fr)
CH (1) CH683969A5 (fr)
DE (1) DE59206984D1 (fr)
FI (1) FI98499C (fr)
GR (1) GR3021482T3 (fr)
ZA (1) ZA924088B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2113271B1 (es) * 1994-09-07 1999-01-01 Krosaki Corp Estructura de fijacion de bastidor de placa metalica para tobera deslizante.
ZA992114B (en) * 1998-03-17 1999-09-28 Stopinc Ag Valve plate and a sliding gate valve at the outlet of a vessel containing molten metal.
TW553788B (en) * 2000-04-21 2003-09-21 Vesuvius Crucible Co One-piece inner nozzle and clamping device for an inner nozzle
JP4159075B2 (ja) * 2001-05-23 2008-10-01 黒崎播磨株式会社 スライドゲートプレート
TWI717455B (zh) * 2016-01-25 2021-02-01 比利時商維蘇威集團股份有限公司 滑動閘閥板、金屬殼及滑動閘閥

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2102059A1 (de) * 1971-01-16 1972-08-03 Didier-Werke Ag, 6200 Wiesbaden Schieberverschluß für flüssige Schmelze enthaltende Behälter, insbesondere Gießpfannen
DE2227501A1 (de) * 1971-06-07 1973-01-04 Uss Eng & Consult Gleitschiebervorrichtung zum verschliessen bodenseitiger ausgussoeffnungen an giessgefaessen
US4597514A (en) * 1982-04-01 1986-07-01 Uss Engineers And Consultants, Inc. Sliding gate valves and components thereof
DE3805074C1 (fr) * 1988-01-15 1989-09-21 Stopinc Ag, Baar, Ch

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415103A (en) * 1979-09-07 1983-11-15 Uss Engineers And Consultants, Inc. Full throttle valve and method of tube and gate change
CH647966A5 (de) * 1980-05-09 1985-02-28 Stopinc Ag Verschlussplatten-einheit fuer einen schiebeverschluss fuer metallurgische schmelzegefaesse.
BR8707428A (pt) * 1986-08-20 1988-11-01 Stopinc Ag Fecho corredico no bocal de despejo de um vaso contendo metal fundido

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2102059A1 (de) * 1971-01-16 1972-08-03 Didier-Werke Ag, 6200 Wiesbaden Schieberverschluß für flüssige Schmelze enthaltende Behälter, insbesondere Gießpfannen
DE2227501A1 (de) * 1971-06-07 1973-01-04 Uss Eng & Consult Gleitschiebervorrichtung zum verschliessen bodenseitiger ausgussoeffnungen an giessgefaessen
US4597514A (en) * 1982-04-01 1986-07-01 Uss Engineers And Consultants, Inc. Sliding gate valves and components thereof
DE3805074C1 (fr) * 1988-01-15 1989-09-21 Stopinc Ag, Baar, Ch

Also Published As

Publication number Publication date
FI922833A0 (fi) 1992-06-17
FI98499B (fi) 1997-03-27
EP0522284B1 (fr) 1996-08-28
US5251794A (en) 1993-10-12
FI922833A (fi) 1993-01-13
DE59206984D1 (de) 1996-10-02
FI98499C (fi) 1997-07-10
GR3021482T3 (en) 1997-01-31
ZA924088B (en) 1993-02-24
JPH05185203A (ja) 1993-07-27
CH683969A5 (de) 1994-06-30
CA2070798A1 (fr) 1993-01-13

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