US3685707A - Sliding-gate closure for bottom-pour vessel - Google Patents

Sliding-gate closure for bottom-pour vessel Download PDF

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Publication number
US3685707A
US3685707A US33547A US3685707DA US3685707A US 3685707 A US3685707 A US 3685707A US 33547 A US33547 A US 33547A US 3685707D A US3685707D A US 3685707DA US 3685707 A US3685707 A US 3685707A
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US
United States
Prior art keywords
gate
orifice
refractory
nozzle
vessel
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.)
Expired - Lifetime
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US33547A
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English (en)
Inventor
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
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Publication of US3685707A publication Critical patent/US3685707A/en
Assigned to USX CORPORATION, A CORP. OF DE reassignment USX CORPORATION, A CORP. OF DE MERGER (SEE DOCUMENT FOR DETAILS). Assignors: UNITED STATES STEEL CORPORATION (MERGED INTO)
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Expired - Lifetime legal-status Critical Current

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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
    • B22D41/28—Plates therefor

Definitions

  • ABSTRACT A sliding gate closure member for a bottoin-pour hot metal vessel.
  • the gate includes an erosion-resistant nozzle orifice insert positioned in a low-cost refractory [52] US. Cl. ..222/559 and a hard refractory top plate that presents a crack hilt. f Surface to molten metal thus preventing he [58] Field 0 Search ..222/DlG.
  • An alternative gate construction has 56 R f ed a recessed erosion-resistant nozzle orifice insert posi- 1 e erences n tioned in'a hard refractory that serves as both a backlT STATES PATENTS up material for the orifice insert and as the top surface a of the gate, yet'provides similar protection against the 3,511,261 5/1970 Bick et a1 ..222/DIG. 7 formation ffi 1 3,454,201 7/1969 'Fichera.... ..2 22/DlG. 7
  • This invention relates to an improved slidable-gate colnstruction for use as a closure on a bottom-pour vesse
  • my gate construction is particularly useful as applied to 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. It is known to equip the pouring vessel with 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 my U.S. Pat. No. 3,352,465.
  • the vessel carries a hydraulic operating mechanism for positioning the gate.
  • 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, each of which 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.
  • FIG. 1 is a vertical-sectional view of portions of a bottom-pour vessel showing the preferred embodiment gate, construction using only two refractories.
  • FIG. 7 is a vertical cross-section taken along line VIIVII of FIG. 6.
  • FIG. 1 shows a portion of a conventional bottompour vessel 10, which has a metal shell 12 and a refractory lining 13 for containing molten metal.
  • the bottom wall of the bottom-pour vessel has an outlet opening 14 and carries an orifice plate 15 and refractory discharge nozzle 16 fixed to its underside aligned with the opening.
  • a sliding gate closure member 17 is mounted beneath the orifice plate. The gate can be supported and operated in any desired manner; hence I have not shown the supporting and operating mechanism.
  • each gate comprises a low-cost main refractory block 20 of a material such as fire clay, an erosion-resistant refractory nozzle 21, such as zirconia, having a vertical orifice 22, and a refractory top plate 24 having a hole 25, the top of which plate 24 has a smooth surface;
  • the top plate must have the necessary strength and hardmess to withstand the effects of sliding.
  • High alumina refractory is suitable for this application.
  • the refractory gate can be inserted into a metal frame 26, if desired. Mortar 28 can be used between pieces to bond them together.
  • a connecting member 30 is attached to the end of the gate.
  • the invented gate readily performs the function of controlling or stopping the flow of molten metal.
  • the sliding surface of the refractory top plate is a solid piece, there is an absence of cracks'and joints in which metal fins form.
  • the gate depicted therein comprises a main refractory block 32 and a recessed erosion-resistant refractory nozzle 33 inserted therein.
  • Nozzle 33 is positioned in an orifice 34.
  • This gate can also be inserted into a metal frame 36 if desired, and mortar 37 can be used to bond the pieces together.
  • block 32 serves as the top of the gate, it must have a relatively hard and smooth top surface. Thus it must be made of some hard, smooth material, such as a high alumina refractory. It can readily be seen that my alternative gate construction is easily adaptable for use in a reciprocable gate.
  • an improved gate comprising a main refractory block having an orifice, said orifice having an upwardly extending wall, and a nozzle of erosion-resistant refractory positioned within said orifice and recessed below the top of said block leaving the portion of the refractory wall of said orifice exposed above the nozzle, said block having a smooth joint-free upper surface surrounding said orifice to serve as the top of the gate, the joint between the refractories of said block and said nozzle being located within said orifice to avoid formation of fins when metal flows through said nozzle.
  • a gate as defined in claim 1 further comprising a metal frame surrounding said gate.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Charging Or Discharging (AREA)
US33547A 1970-05-01 1970-05-01 Sliding-gate closure for bottom-pour vessel Expired - Lifetime US3685707A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3354770A 1970-05-01 1970-05-01

Publications (1)

Publication Number Publication Date
US3685707A true US3685707A (en) 1972-08-22

Family

ID=21871045

Family Applications (1)

Application Number Title Priority Date Filing Date
US33547A Expired - Lifetime US3685707A (en) 1970-05-01 1970-05-01 Sliding-gate closure for bottom-pour vessel

Country Status (12)

Country Link
US (1) US3685707A (xx)
JP (1) JPS512897B1 (xx)
AT (1) AT315401B (xx)
BE (1) BE766301A (xx)
BR (1) BR7102597D0 (xx)
CA (1) CA940689A (xx)
DE (1) DE2121451C3 (xx)
ES (1) ES197739Y (xx)
FR (1) FR2088259B1 (xx)
GB (1) GB1354412A (xx)
NL (1) NL169431C (xx)
ZA (1) ZA712483B (xx)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786969A (en) * 1972-04-17 1974-01-22 Steel Corp Sliding-gate closure construction for bottom-pour vessels
JPS50126714U (xx) * 1974-04-03 1975-10-17
US4210617A (en) * 1978-08-03 1980-07-01 Kaiser Aluminum & Chemical Corporation Method of casting an integral slide gate and nozzle
US4383624A (en) * 1977-10-17 1983-05-17 General Refractories Company Slide gate
US4497473A (en) * 1981-11-05 1985-02-05 Glaverbel Composite refractory articles and method of manufacturing them
US4554035A (en) * 1977-10-17 1985-11-19 General Refractories Company Method of manufacturing a slide gate
US4597514A (en) * 1982-04-01 1986-07-01 Uss Engineers And Consultants, Inc. Sliding gate valves and components thereof
US4599242A (en) * 1983-09-19 1986-07-08 Plasmafusion, Inc. Refractory slidegate with countersunk hole and method
US4693452A (en) * 1986-03-12 1987-09-15 Triten Corporation Valve
US4720083A (en) * 1983-07-15 1988-01-19 Ceskoslovenska Akademie Ved Valve closure gate assembly for foundry ladles
US5178780A (en) * 1989-08-18 1993-01-12 Recherches Et Developpments Dessar Device for closing the pouring hole of a receptacle for liquid metal
US5518154A (en) * 1994-11-17 1996-05-21 Usx Corporation Gate and pour tube assembly for use in throttling gate valve
US20130048897A1 (en) * 2011-08-31 2013-02-28 P D K Llc Exchangeable valve plate assembly for a molten metal slide gate valve

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4955917U (xx) * 1972-08-25 1974-05-17
GB1589659A (en) * 1977-05-13 1981-05-20 Vysoka Skola Chem Tech Refractory plates
NL187197C (nl) * 1978-09-25 1991-07-01 Uss Eng & Consult Inrichting voor het regelen van de stroming van vloeibaar metaal.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US506328A (en) * 1893-10-10 Ladle for handling molten steel
US3454201A (en) * 1964-09-22 1969-07-08 Ernesto Fichera Discharge mechanism for bottom pouring steel ladle
US3511261A (en) * 1964-11-25 1970-05-12 Benteler Geb Paderwerk Controllable teeming valve for steel-casting ladles
US3567082A (en) * 1967-02-24 1971-03-02 Metacon Ag Casting installation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1905995A1 (de) * 1968-02-15 1969-09-25 Inst Der Feuerfest Ind Giesspfannenausguss,insbesondere fuer das Stahlstranggiessen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US506328A (en) * 1893-10-10 Ladle for handling molten steel
US3454201A (en) * 1964-09-22 1969-07-08 Ernesto Fichera Discharge mechanism for bottom pouring steel ladle
US3511261A (en) * 1964-11-25 1970-05-12 Benteler Geb Paderwerk Controllable teeming valve for steel-casting ladles
US3567082A (en) * 1967-02-24 1971-03-02 Metacon Ag Casting installation

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786969A (en) * 1972-04-17 1974-01-22 Steel Corp Sliding-gate closure construction for bottom-pour vessels
JPS50126714U (xx) * 1974-04-03 1975-10-17
JPS5226494Y2 (xx) * 1974-04-03 1977-06-16
US4554035A (en) * 1977-10-17 1985-11-19 General Refractories Company Method of manufacturing a slide gate
US4383624A (en) * 1977-10-17 1983-05-17 General Refractories Company Slide gate
US4210617A (en) * 1978-08-03 1980-07-01 Kaiser Aluminum & Chemical Corporation Method of casting an integral slide gate and nozzle
US4497473A (en) * 1981-11-05 1985-02-05 Glaverbel Composite refractory articles and method of manufacturing them
US4597514A (en) * 1982-04-01 1986-07-01 Uss Engineers And Consultants, Inc. Sliding gate valves and components thereof
US4720083A (en) * 1983-07-15 1988-01-19 Ceskoslovenska Akademie Ved Valve closure gate assembly for foundry ladles
US4599242A (en) * 1983-09-19 1986-07-08 Plasmafusion, Inc. Refractory slidegate with countersunk hole and method
US4693452A (en) * 1986-03-12 1987-09-15 Triten Corporation Valve
US5178780A (en) * 1989-08-18 1993-01-12 Recherches Et Developpments Dessar Device for closing the pouring hole of a receptacle for liquid metal
US5518154A (en) * 1994-11-17 1996-05-21 Usx Corporation Gate and pour tube assembly for use in throttling gate valve
US20130048897A1 (en) * 2011-08-31 2013-02-28 P D K Llc Exchangeable valve plate assembly for a molten metal slide gate valve

Also Published As

Publication number Publication date
AT315401B (de) 1974-05-27
FR2088259B1 (xx) 1975-02-21
NL169431C (nl) 1982-07-16
BR7102597D0 (pt) 1973-04-26
DE2121451B2 (de) 1977-11-03
NL169431B (nl) 1982-02-16
CA940689A (en) 1974-01-29
BE766301A (fr) 1971-10-26
ZA712483B (en) 1972-01-26
ES197739U (es) 1975-05-01
DE2121451C3 (de) 1982-10-07
FR2088259A1 (xx) 1972-01-07
JPS512897B1 (xx) 1976-01-29
ES197739Y (es) 1975-10-16
GB1354412A (en) 1974-06-05
DE2121451A1 (de) 1971-12-02
NL7105828A (xx) 1971-11-03

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Legal Events

Date Code Title Description
AS Assignment

Owner name: USX CORPORATION, A CORP. OF DE, STATELESS

Free format text: MERGER;ASSIGNOR:UNITED STATES STEEL CORPORATION (MERGED INTO);REEL/FRAME:005060/0960

Effective date: 19880112