US3604603A - Supporting mechanism for slidable gate closures used on bottom-pour vessels - Google Patents

Supporting mechanism for slidable gate closures used on bottom-pour vessels Download PDF

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Publication number
US3604603A
US3604603A US860693A US3604603DA US3604603A US 3604603 A US3604603 A US 3604603A US 860693 A US860693 A US 860693A US 3604603D A US3604603D A US 3604603DA US 3604603 A US3604603 A US 3604603A
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US
United States
Prior art keywords
tubes
gate
vessel
nozzle
troughs
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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 - Lifetime
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US860693A
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English (en)
Inventor
John A Grosko
James T Shapland
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United States Steel Corp
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United States Steel Corp
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Filing date
Publication date
Application filed by United States Steel Corp filed Critical United States Steel Corp
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    • 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
    • B22D41/40—Means for pressing the plates together

Definitions

  • our gate-supporting mechanism is particularly useful as applied to vessels for pouring molten metal, for example a ladle or tundish.
  • vessels for pouring molten metal, for example a ladle or tundish.
  • Such vessels have an outlet in the bottom wall through which molten metal is poured into a receiving vessel.
  • a slidable gate mounted on the underside of the bottom wall for controlling flow of metal through the outlet, one example of which is shown in Shapland US. Pat. No. 3,352,465.
  • the vessel carries a hydraulic operating mechanism for positioning the gate.
  • One practice is to use a reciprocable gate which has both a blank area and a nozzle, as shown in FIGS. 1 to 3 of the patent.
  • the gate is slidable back and forth between positions in which the blank area underlies the outlet to close it, or the nozzle is aligned with the outlet to permit pouring.
  • Another and usually preferred practice is to use gates of the slide-through" type, wherein each gate is either a blank or provides a nozzle, as shown in FIGS. 4 and 5 of the patent. As the operating mechanism shoves each gate into alignment with the outlet, the new gate shoves the preceding gate on past and eventually off the vessel.
  • the supporting mechanism for the gate must press the gate firmly against the vessel bottom to prevent leakage, yet it must allow for thermal expansion and contraction of the gate.
  • the gate does not always expand or contract uniformly, but the dimensions of some portions may change more than others.
  • Previous supporting mechanisms have included levers mounted on the bottom of the vessel and engaging the side edges of the gate, and springs or hydraulic means actuating the levers, as shown for example in the aforementioned patent. While these arrangements operate satisfactorily, they require a large number of moving parts and they occupy an undesirably large area on the bottom of the vessel.
  • An object of our invention is to provide a gate-supporting mechanism which is simpler mechanically and more compact than mechanisms used heretofore, yet allows for uneven dimensional changes in the gate.
  • a more specific object is to provide a gate-supporting mechanism which embodies inflatable tubes for pressing the gate against a vessel bottom and series of heat-resistant blocks interposed between the tubes and gate.
  • FIG. 1 is a longitudinal vertical section on line l-I of FIG. 2 of a portion of a bottom-pour vessel which has a gate and a supporting mechanism for the gate constructed in accordance with our invention
  • FIG. 2 is a vertical section on line IlII of FIG. 1.
  • the drawing shows a portion of a bottom-pour vessel which has a metal shell 12 and a refractory lining 13.
  • the bottom wall of vessel 10 has an outlet opening within which a nozzle 14 is mounted.
  • An orifice plate 15 is fixed to the vessel bottom beneath the nozzle.
  • the vessel is equipped with a slidable gate closure, which is illustrated as of the slide-through type, although it could be of the reciprocable type.
  • the operating mechanism for the closure is supported on a pair of opposed angles irons 16 which are fixed to the bottom of the vessel and extend beyond the confines thereof.
  • the confronting faces of the angle irons carry respective rails 17 which have horizontal flanges adapted to receive and support gates 18 in readiness to be shoved into alignment with nozzle 14.
  • the angle irons also carry a chute 19 for loading the gates onto the rails, and a hydraulic cylinder 20 which has a reciprocable ram 21 for shoving gates along the rails.
  • Rails 17 terminate short of the orifice plate 15.
  • the confronting faces of the angle irons l6 carry respective upward open troughs 25 beneath opposite side edges of the orifice plate 15.
  • inflatable flexible tubes 26, preferably of thin-wall stainless steel in the bottoms of the respective troughs.
  • the tubes are of oval shape in cross section, and we place them with their longest diameters horizontal. Both ends of the tubes flare to a circular cross section and carry caps 27.
  • the upper faces of the blocks are horizontally aligned with the horizontal flanges of rails 17, and with similar flanges of exit rails 32, which extend from the other ends of the troughs.
  • a heat shield 33 of stainless steel or the like is mount on the angle irons beneath the troughs.
  • the rails, cylinder, etc. which we have illustrated are only one example of suitable means for operating the gates.
  • Our supporting mechanism can be used with many different structures for moving the gates into position.
  • a slidable gate operable to close said nozzle or to permit pouring therethrough
  • said yieldable means being in the form of respective thinwall flexible metal tubes of oval cross section positioned in said troughs with their longest diameters horizontal;
  • said tubes bulging under internal pressure of fluid admitted thereto and forcing said gate against the bottom of said vessel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
US860693A 1969-09-24 1969-09-24 Supporting mechanism for slidable gate closures used on bottom-pour vessels Expired - Lifetime US3604603A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86069369A 1969-09-24 1969-09-24

Publications (1)

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US3604603A true US3604603A (en) 1971-09-14

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Family Applications (1)

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US860693A Expired - Lifetime US3604603A (en) 1969-09-24 1969-09-24 Supporting mechanism for slidable gate closures used on bottom-pour vessels

Country Status (8)

Country Link
US (1) US3604603A (de)
AT (1) AT304783B (de)
AU (1) AU2003170A (de)
BE (1) BE756374A (de)
DE (1) DE2046051A1 (de)
FR (1) FR2062976B1 (de)
NL (1) NL7014008A (de)
ZA (1) ZA706281B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358034A (en) * 1979-03-02 1982-11-09 Uss Engineers And Consultants, Inc. Sliding gate valve with orifice-encircling spring
US4360133A (en) * 1980-01-31 1982-11-23 Hainaut-Sambre S.A. Apparatus for pouring molten steel
DE3319009A1 (de) * 1982-05-24 1983-11-24 FLO-CON Systems, Inc., 61820 Champaign, Ill. Ventil fuer einen geschmolzenes material enthaltenden behaelter
US4570908A (en) * 1983-03-24 1986-02-18 Flo-Con Systems, Inc. Furnace valve
US4667937A (en) * 1983-03-24 1987-05-26 Flo-Con Systems, Inc. Heat shield for sliding gate valve
US4697723A (en) * 1985-04-10 1987-10-06 Stopinc Aktiengesellschaft Tensioning structure for a sliding closure unit
US5421563A (en) * 1991-04-06 1995-06-06 Technometal Gesellschaft Fur Metalltechnologie Mbh Slide closure for melting pots
US11654480B2 (en) 2018-06-26 2023-05-23 Refractory Intellectual Property Gmbh & Co. Kg Sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous casting facility

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4326325C2 (de) * 1993-08-05 1996-07-11 Inductotherm Coating Equipment Metallurgisches Gefäß
GB9509013D0 (en) * 1995-05-03 1995-06-21 Flogates Ltd Improved sliding gate valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3224382A (en) * 1960-02-12 1965-12-21 Unitcast Corp Sliding gate sealing means assemblies
US3352465A (en) * 1965-05-06 1967-11-14 United States Steel Corp Refractory closure member for bottom pour vessels
US3480186A (en) * 1967-12-22 1969-11-25 United States Steel Corp Sliding gate for metal-holding vessel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3224382A (en) * 1960-02-12 1965-12-21 Unitcast Corp Sliding gate sealing means assemblies
US3352465A (en) * 1965-05-06 1967-11-14 United States Steel Corp Refractory closure member for bottom pour vessels
US3480186A (en) * 1967-12-22 1969-11-25 United States Steel Corp Sliding gate for metal-holding vessel

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358034A (en) * 1979-03-02 1982-11-09 Uss Engineers And Consultants, Inc. Sliding gate valve with orifice-encircling spring
US4360133A (en) * 1980-01-31 1982-11-23 Hainaut-Sambre S.A. Apparatus for pouring molten steel
DE3319009A1 (de) * 1982-05-24 1983-11-24 FLO-CON Systems, Inc., 61820 Champaign, Ill. Ventil fuer einen geschmolzenes material enthaltenden behaelter
US4570908A (en) * 1983-03-24 1986-02-18 Flo-Con Systems, Inc. Furnace valve
US4667937A (en) * 1983-03-24 1987-05-26 Flo-Con Systems, Inc. Heat shield for sliding gate valve
US4697723A (en) * 1985-04-10 1987-10-06 Stopinc Aktiengesellschaft Tensioning structure for a sliding closure unit
US5421563A (en) * 1991-04-06 1995-06-06 Technometal Gesellschaft Fur Metalltechnologie Mbh Slide closure for melting pots
US11654480B2 (en) 2018-06-26 2023-05-23 Refractory Intellectual Property Gmbh & Co. Kg Sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous casting facility

Also Published As

Publication number Publication date
ZA706281B (en) 1971-05-27
BE756374A (fr) 1971-03-18
AU2003170A (en) 1972-03-23
DE2046051A1 (de) 1971-04-01
FR2062976A1 (de) 1971-07-02
FR2062976B1 (de) 1975-01-10
NL7014008A (de) 1971-03-26
AT304783B (de) 1973-01-25

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