US3672652A - Apparatus for manipulating an oxygen injection lance - Google Patents

Apparatus for manipulating an oxygen injection lance Download PDF

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Publication number
US3672652A
US3672652A US60051A US3672652DA US3672652A US 3672652 A US3672652 A US 3672652A US 60051 A US60051 A US 60051A US 3672652D A US3672652D A US 3672652DA US 3672652 A US3672652 A US 3672652A
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United States
Prior art keywords
carriage
counterweight
mast
lance
sheave
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
US60051A
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English (en)
Inventor
Harry W Schurr
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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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Publication of US3672652A publication Critical patent/US3672652A/en
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    • 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

  • Hoisting mechanism for an oxygen lance includes a counterweighted lance carriage driven by a hoist system made up of a l PP 9 motor driven traction drum, guide sheaves and cables. The weight of the counterweight offsets the weight of the carriage, 52 us. c1. ass/34 LM and f [5]] Int.
  • Allarney APPARATUS FOR MANIPULATING AN OXYGEN INJECTION LANCE BACKGROUND OF THE INVENTION In oxygen steelmaking, it is typical to use a lance to force oxygen into contact with the surface of molten iron in an oxygen converter to eliminate certain chemical elements from the molten metal.
  • the lance is usually inserted into the oxygen converter vessel through an opening in the hood which normally covers the converter pouring mouth during a blowing operation. Accurate manipulation of the oxygen lance is required to permit accurate positioning of the lance relative to the surface of the molten metal in the vessel.
  • the present invention relates to oxygen injection apparatus for steelmaking converters and more particularly to apparatus for manipulating a lance through which oxygen is supplied to a converter.
  • the primary object of the present invention to provide improved hoisting apparatus for manipulating an oxygen jet lance whereby the lance can be easily withdrawn from a steelmaking vessel even though the power means driving the hoist mechanism fails.
  • FIG. 1 is an elevational view
  • FIG. 2 is an elevational view taken substantially along the line ll-Il ofFlG. 1;
  • FIG. 3 is an elevational view taken substantially along the line lll-Ill of FIG. 1',
  • FIG. 4 is an enlarged plan view taken substantially along the line lV-IV ofFlG. 1;
  • FIG. 5 is a schematic view showing the cable, traction drum and sheave hoisting arrangement of the invention.
  • FIG. 6 is a schematic view showing a modified cable, traction drum and sheave hoisting arrangement.
  • reference numeral 2 designates an upstanding mast mounted for arcuate pivotal movement about an upstanding column 4.
  • a carriage 6 is mounted for vertical reciprocal movement along the mast 2.
  • An oxygen lance 8 is suspended from the carriage 6 and is detachably connected therewith by means of lance clamps 10.
  • the mast 2 may be pivoted arcuately about the column 4 by means of a slew drive 5 to move the lance laterally and arcuately from an operating position suspended over a converter to a park position remote from the converter.
  • a hose complex 12 is connected to the upper portion of the lance 8 for the purpose of conducting oxygen and cooling water thereto in the conventional manner.
  • An upstanding guide frame 14 is attached to the mast 2 extending substantially parallel therewith and spaced laterally therefrom on the side thereof opposite the carriage 6.
  • a counterweight 16 is mounted for vertical reciprocable movement within the guide frame 14.
  • a hoisting mechanism is mounted on the top of the guide frame l4 and includes a drive motor 20 having a power shaft 22 extending therefrom connected with a speed reducer 24.
  • a brake 26 is disengageably connected with the shaft 22.
  • a traction drum 28 is connected with and driven by the output shaft 30 of the speed reducer 24.
  • the counterweight 16 is connected with the hoisting mechanism and the carriage 6 by a double cable and sheave arrangement.
  • a cable 32 extends from a dead-end connection on the mast 2, as at 34.
  • the cable 32 extends from the dead-end connection 34 tangentially around a sheave 36 which, in turn, is rotatably mounted on the carriage 6. From thence, the cable extends tangentially over two sheaves 38 rotatably mounted on the upper end of the mast 2.
  • the cable then extends around the traction drum 28 from where it extends to and passes tangentially around a sheave 40 mounted on the upper end of the counterweight 16.
  • the cable then travels upwardly to pass tangentially around a sheave 42 which is rotatably mounted in the upper end of the guide frame 14. From the sheave 42 the cable descends and passes tangentially around a second sheave 44 on the upper end of the counterweight and thence to a dead-end connection 46 on the upper end of the guide frame 14.
  • the number of cables and the number and sizes of sheaves may be varied in accordance with the amount of hoisting force required in a desired arrangement.
  • a shock absorber 48 which may be in the form of two coil springs or a hydraulic cylinder or cylinders, is disposed on the bottom of the guide frame in the pathway of and below the counterweight 16.
  • the lance 8 is lowered into position within a converter by actuating the motor 20 as as to drive the carriage 6 downwardly until the bottom end of the lance is positioned as desired in relation to the upper surface of the molten metal in the converter.
  • the motor 20 is then stopped and simultaneously the brake is applied to the shaft 22 so that the lance will be held firmly in the desired position.
  • the counterweight 16 is elevated within the guide frame H a distance proportional to the distance the carriage has been lowered. This is effected by the cable and sheave arrangement described above which connects the counterweight with the hoisting mechanism and the carriage.
  • FIG. 6 schematically shows a modified cable, traction drum and sheave arrangement that can be used to connect the counterweight with the hoisting mechanism and the carriage.
  • Apparatus for manipulating a fluid jet lance utilized for introducing a high velocity jet of fluid into a furnace which comprises an upstanding mast, a carriage mounted for vertical movement along said mast, a hoisting drive on said mast connected with said carriage for moving the same along said mast, power means for driving said hoisting drive, said hoisting drive including a reversible motor having a drive shaft, a speed reducer connected with said drive shaft, a disengageable brake on said drive shaft effective to stop rotation thereof, a drum pulley connected with and driven by said speed reducer, said fluid jet lance being suspended from said carriage for movement therewith in a vertical plane, an upstanding guide frame fixedly mounted on said mast substantially parallel therewith opposite said carriage, a counterweight disposed for vertical movement in said guide frame, a first sheave rotatably mounted on said carriage, a second and third sheave each rotatably mounted on the upper end of said mast, a fourth sheave rotatably mounted on said counterweight, a fifth sheave rotat
  • Apparatus for manipulating a fluid jet lance utilized for introducing a high velocity jet of fluid into a furnace which comprises an upstanding mast, a carriage mounted for vertical movement along said mast, a hoisting drive on said mast connected with said carriage for moving the same along said mast, power means for driving said hoisting drive, said fluid jet lance being suspended from said carriage for movement therewith in a vertical plane, an upstanding guide frame fixedly mounted on said mast substantially parallel therewith opposite said carriage, a counterweight disposed for vertical movement in said guide frame, means connecting said counterweight with said hoisting drive and carriage whereby said counterweight rises in said guide when said carriage is driven downwardly by said hoisting drive and said counterweight descends by gravity in said guide frame to raise said carriage and lance when said power means is inoperative, said means connecting said counterweight with said hoisting drive and said carriage comprising a cable having dead-end connections with the mast and said guide frame, sheave means rotatably mounted on said carriage, on said mast, on said counterweight and in said frame guide, said
  • said power means and said driving connection comprise a reversible motor having a drive shaft connected with a speed reducer, and a disengageable brake in engagement with said drive shaft effective to stop rotation thereof.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
US60051A 1970-07-31 1970-07-31 Apparatus for manipulating an oxygen injection lance Expired - Lifetime US3672652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6005170A 1970-07-31 1970-07-31

Publications (1)

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US3672652A true US3672652A (en) 1972-06-27

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ID=22027009

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Application Number Title Priority Date Filing Date
US60051A Expired - Lifetime US3672652A (en) 1970-07-31 1970-07-31 Apparatus for manipulating an oxygen injection lance

Country Status (10)

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US (1) US3672652A (pt)
AU (1) AU3150071A (pt)
BE (1) BE770515A (pt)
BR (1) BR7104866D0 (pt)
DE (1) DE2137013A1 (pt)
ES (1) ES393749A1 (pt)
FR (1) FR2099706B3 (pt)
LU (1) LU63639A1 (pt)
NL (1) NL7110499A (pt)
ZA (1) ZA714832B (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106319144A (zh) * 2015-06-29 2017-01-11 鞍钢股份有限公司 一种多功能转炉氧枪刮渣器及其使用方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112760447A (zh) * 2020-12-04 2021-05-07 河钢股份有限公司承德分公司 一种转炉氧枪升降控制系统及方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1132769A (en) * 1907-06-17 1915-03-23 Otis Elevator Co Traction-elevator.
US3007691A (en) * 1958-05-30 1961-11-07 Voest Ag Blowing device for refining crude iron
FR1301539A (fr) * 1961-09-12 1962-08-17 Dillinger Huettenwerke Ag Dispositif de support pour conduites de soufflage
FR1402420A (fr) * 1964-07-24 1965-06-11 Demag Ag Procédé et dispositif de déplacement de cannes d'insufflation d'oxygène et de cannes d'insufflation de rechange pour convertisseurs ou réservoirs métallurgiques analogues
US3366376A (en) * 1964-11-30 1968-01-30 United States Steel Corp Oxygen injection apparatus for steelmaking converters
US3446316A (en) * 1966-08-01 1969-05-27 Titzel Eng Inc Lance carriage stop

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1132769A (en) * 1907-06-17 1915-03-23 Otis Elevator Co Traction-elevator.
US3007691A (en) * 1958-05-30 1961-11-07 Voest Ag Blowing device for refining crude iron
FR1301539A (fr) * 1961-09-12 1962-08-17 Dillinger Huettenwerke Ag Dispositif de support pour conduites de soufflage
FR1402420A (fr) * 1964-07-24 1965-06-11 Demag Ag Procédé et dispositif de déplacement de cannes d'insufflation d'oxygène et de cannes d'insufflation de rechange pour convertisseurs ou réservoirs métallurgiques analogues
US3366376A (en) * 1964-11-30 1968-01-30 United States Steel Corp Oxygen injection apparatus for steelmaking converters
US3446316A (en) * 1966-08-01 1969-05-27 Titzel Eng Inc Lance carriage stop

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106319144A (zh) * 2015-06-29 2017-01-11 鞍钢股份有限公司 一种多功能转炉氧枪刮渣器及其使用方法
CN106319144B (zh) * 2015-06-29 2018-06-26 鞍钢股份有限公司 一种多功能转炉氧枪刮渣器及其使用方法

Also Published As

Publication number Publication date
FR2099706A3 (pt) 1972-03-17
LU63639A1 (pt) 1971-11-26
AU3150071A (en) 1973-01-25
NL7110499A (pt) 1972-02-02
FR2099706B3 (pt) 1978-03-17
BR7104866D0 (pt) 1973-05-17
ES393749A1 (es) 1973-08-16
BE770515A (fr) 1972-01-26
ZA714832B (en) 1972-04-26
DE2137013A1 (de) 1972-02-10

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