US3370824A - Plug-actuating device for ladles - Google Patents

Plug-actuating device for ladles Download PDF

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Publication number
US3370824A
US3370824A US476549A US47654965A US3370824A US 3370824 A US3370824 A US 3370824A US 476549 A US476549 A US 476549A US 47654965 A US47654965 A US 47654965A US 3370824 A US3370824 A US 3370824A
Authority
US
United States
Prior art keywords
plug
ladle
ladles
gas
actuating device
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
Application number
US476549A
Other languages
English (en)
Inventor
Puhringer Othmar
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.)
Voestalpine AG
Voest AG
Original Assignee
Voestalpine 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 Voestalpine AG filed Critical Voestalpine AG
Application granted granted Critical
Publication of US3370824A publication Critical patent/US3370824A/en
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
    • B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
    • B22D41/20—Stopper-rod operating equipment

Definitions

  • ABSTRACT OF THE DISCLOSURE This disclosure relates to a self-contained plug-actuating system mounted on a ladle for receiving molten metal including a compressed gas tank for driving a gas-driven hydraulic pump to supply hydraulic fluid under pressure to a cylinder by means of which the plug or stopper of the ladle is withdrawn to discharge the contents of the ladle,
  • ladles for metals are provided with one or two outlets in the bottom, which are closed by plug rods. These plug rods are mostly operated manually via a lever mechanism.
  • an outlet in the bottom of the ladle 1 is closed by the plug rod 2.
  • Operation of the plug rod is effected through a lever linkage 3 by means of an hydraulic cylinder 4 mounted on the ladle.
  • Oil under pressure is supplied to the cylinder 4 by means of a pneumatically operated hydraulic pump 5 which is driven by means of gas under pressure supplied from the gas pressure storage tank 6.
  • Control valves 7 and 8 which are actuated by means of a mechanical operating means 9, such as Bowden wires, serve to control the sup ply of hydraulic fluid to the cylinder 4.
  • the pressure gas storage tank 6 contains an amount of compressed gas sufiicient for actuating the plug rod to enable pouring at least one ladle charge.
  • a valve 10 enables the gas pressure storage tank to be charged when, in the ladle stand, the plug rod is inserted.
  • An actuating device for the plug rod of a ladle for receiving molten metals comprising a plug rod for closing an outlet in the said ladle, a hydraulic cylinder for moving said rod to tap said ladle, a gas-actuated hydraulic fluid pump for supplying hydraulic fluid under pressure to the cylinder to move said rod, storage tank for receiving gas under pressure and for supplying gas under pressure to actuate the pump, fluid flow conduits connecting said cylinder, pump and tank, valve means in a conduit connecting said tank and said pump for admitting and stopping the flow of gas from said tank to said pump, control means in the conduit connecting the pump and cylinder for regulating the supply of hydraulic fluid to said cylinder, said tank having a capacity for pressurized gas in an amount sufiicient to tap said ladle a plurality of times, and means for mounting said cylinder, pump and tank on said ladle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Control Of Fluid Pressure (AREA)
US476549A 1964-08-03 1965-08-02 Plug-actuating device for ladles Expired - Lifetime US3370824A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT667664A AT242879B (de) 1964-08-03 1964-08-03 Stopfenbetätigung für Gießpfannen

Publications (1)

Publication Number Publication Date
US3370824A true US3370824A (en) 1968-02-27

Family

ID=3588690

Family Applications (1)

Application Number Title Priority Date Filing Date
US476549A Expired - Lifetime US3370824A (en) 1964-08-03 1965-08-02 Plug-actuating device for ladles

Country Status (3)

Country Link
US (1) US3370824A (de)
AT (1) AT242879B (de)
GB (1) GB1066516A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100470472B1 (ko) * 2002-10-23 2005-02-07 주식회사 우진 래들 버블링용 플러그 자동 연결장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573993A (en) * 1948-07-10 1951-11-06 American Steel Foundries Hydraulic pneumatic system for actuating pressure
US2832110A (en) * 1951-11-01 1958-04-29 Blaw Knox Co Ladle stopper control apparatus
US2938347A (en) * 1957-10-30 1960-05-31 Malcolm B Sturgis Power source for hydraulically operated devices
US3309740A (en) * 1964-04-21 1967-03-21 United States Steel Corp Stopper rod rigging for ladles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573993A (en) * 1948-07-10 1951-11-06 American Steel Foundries Hydraulic pneumatic system for actuating pressure
US2832110A (en) * 1951-11-01 1958-04-29 Blaw Knox Co Ladle stopper control apparatus
US2938347A (en) * 1957-10-30 1960-05-31 Malcolm B Sturgis Power source for hydraulically operated devices
US3309740A (en) * 1964-04-21 1967-03-21 United States Steel Corp Stopper rod rigging for ladles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100470472B1 (ko) * 2002-10-23 2005-02-07 주식회사 우진 래들 버블링용 플러그 자동 연결장치

Also Published As

Publication number Publication date
AT242879B (de) 1965-10-11
GB1066516A (en) 1967-04-26

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