US3672653A - Inoculation apparatus - Google Patents

Inoculation apparatus Download PDF

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Publication number
US3672653A
US3672653A US10879A US3672653DA US3672653A US 3672653 A US3672653 A US 3672653A US 10879 A US10879 A US 10879A US 3672653D A US3672653D A US 3672653DA US 3672653 A US3672653 A US 3672653A
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US
United States
Prior art keywords
ladle
nozzle
delivering
metal
parts
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
US10879A
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English (en)
Inventor
Everett W Hale
Paul H Hawkinson
Edward T Robbeloth
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.)
Valeo Engine Cooling Inc
Original Assignee
Blackstone Corp
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 Blackstone Corp filed Critical Blackstone Corp
Application granted granted Critical
Publication of US3672653A publication Critical patent/US3672653A/en
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Expired - Lifetime legal-status Critical Current

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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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material

Definitions

  • the apparatus is a housing divided into two parts by a vertical wall, one part being totally enclosed and provided [56] Rdermces cued with a door through which a ladle of metal is introduced and a UNITED STATES PATENTS vertically movable nozzle adapted to enter the metal and the other part 1s provided with automatic IHJECIIOII apparatus and 333730 8/1967 Y a control means therefor for delivering a preselected amount 3236,511 2/1966 MCGI" 266/34 T f ddi i at Selected times 3,063,694 11/1962 Gaw ..266/15 3,365,186 1/1968 Bosetti et al .266/34 T 2 Claims, 3 Drawing Figures PATENTEUJUNZY m2 3,672.653
  • This invention relates to inoculation apparatus and particularly to apparatus for introducing finely divided solid material into a molten bath of metal.
  • a housing divided vertically into two side-by-side portions separated by a divider wall, one of said portions being completely enclosed, a door opening into said one portion, means for delivering a ladle of metal to be treated to the lower portion of said one enclosed portion through said door, a vertically movable injection nozzle suspended in said one portion above the lower portion into which the ladle is delivered, automatic means in the other of said side-by-side portions for delivering a pre-selected amount of material to be injected into the nozzle and then into the metal, and, control means energizing said delivery means at timed selected intervals.
  • the said one portion is provided at its top with means for removing particulate waste carried upwardly from the ladle and with a stack means.
  • the injection nozzle is preferably suspended on a cable which passes over a pulley at the top of said one portion and is connected to a control drum at the control means.
  • the automatic means for delivering material to be injected through the nozzle and the control means are those disclosed in Hale application Ser. No. 634,171 filed Apr. 27, 1967, issued as US. Pat. No. 3,479,093 on Nov. 18, 1969.
  • FIG. 1 is a front elevation of the apparatus of our invention
  • FIG. 2 is a vertical section through the apparatus of our invention on line "-11 of FIG. 1;
  • FIG. 3 is a top plan view of the apparatus of this invention.
  • One section 11 is provided at the top with an exhaust outlet l4 and gas cleaner 15. This same section 11 is provided with doors 16 through which a ladle 17 may be moved on rails 18 on a carriage 19.
  • An injection nozzle 20 is suspended in the upper part of said one portion ll by means of a cable 21 which passes over a pulley 22 at the top of the portion. Cable 21 is wound on a drum 23 operated from the control station in the bottom part of opposite section 12 of the housing.
  • the portion ll of the housing is totally enclosed so as to contain any flash or flaring of the molten metal contained in the ladle.
  • Louvers 24 in the side walls of portion 11 permit access of air into the area surrounding the ladle.
  • a fan is mounted in the ceiling of portion 11 which draws high velocity air through the louvers 24 and forces the fumes and exhaust gases through the gas cleaner l5 and outlet 14.
  • nozzle 20 is connected to one end of a flexible hose 25 which passes over pulley 26 on cable 21.
  • the other end of hose 25 is attached to the discharge nozzle 27 of an injection tank assembly 28 such as is described in Hale application Ser. No. 634,171, above referred to.
  • the injection tank assembly automatically feeds finely divided additive from holding or storage tank 29 into batch tank 30 from which it is discharged through hose 25 and nozzle 20 into molten metal in the ladle.
  • the injection tank assembly is operated by a control console 31 such as is shown in Hale application Ser. No. 634,171.
  • Additive is charged into storage tank 29 by means of charging crane 32 which carries a loading grab 33 capable of engaging a drum 34 of additive fitted with a discharge spout 35 adapted to discharge into the inlet opening 290 of storage tank 29.
  • the injection tank assembly 28 is supported on an intermediate floor 36 which forms the roof of the control area of portion 12. Access to floor 36 is by ladder 37.
  • a ladle 17 of molten metal e.g., iron
  • Carriage 19 is moved on rails 18 through the door of portion 11 and the door is closed.
  • the ladle 17 is provided with a ladle cover 17a having an opening 17b adapted to receive nozzle 20.
  • the nozzle 20 is lowered through opening 17b into the molten metal in ladle 17 until the end reaches a point adjacent the bottom of the ladle. This is accomplished by an operator rotating drum 23.
  • the operator energizes the injection tank assembly 28 by means of control panel 31, all as described in Hale application Ser. No. 634,l7 I.
  • An apparatus for injecting pulverulent solid additive materials into molten metal by a moving gas stream comprising a housing divided vertically into two side by side parts separated by a divider wall, one of said parts being completely enclosed, a door opening into said one part, means for delivering a ladle of metal to be treated through said door into the lower portion of said one part, a vertically movable injection nozzle suspended in said one part above the lower portion of said one part, means for raising and lowering said nozzle from a position in the ladle to a raised position free of said ladle, means in the other of said parts for automatically delivering a preselected amount of material to be injected into a gas stream for delivering to the nozzle and control means energizing said delivery means at preselected intervals, said means for raising and lowering the nozzle being a cable carrying a pulley over which passes a flexible hose forming a part of said me ans for delivering material, said hose being connected at one end to one end of said nozzle and
  • An apparatus for injecting pulverulent solid additive materials into molten metal by a moving gas stream comprising a housing divided vertically into two side by side parts separated by a divider wall, one of said parts being completely enclosed, a door opening into said one part, means for delivering a ladle of metal to be treated through said door into the lower portion of said one part, a vertically movable injection nozzle suspended in said one part above the lower portion of said one part, means for raising and lowering said nozzle from a position in the ladle to a raised position free of said ladle, means in the other of said parts for automatically delivering a preselected amount of material to be injected into a gas stream for delivering to the nozzle and control means energiz- 5 ing said delivery means at preselected intervals, said one enclosed part being provided with louvers for admission of air.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Furnace Charging Or Discharging (AREA)
US10879A 1970-02-12 1970-02-12 Inoculation apparatus Expired - Lifetime US3672653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1087970A 1970-02-12 1970-02-12

Publications (1)

Publication Number Publication Date
US3672653A true US3672653A (en) 1972-06-27

Family

ID=21747849

Family Applications (1)

Application Number Title Priority Date Filing Date
US10879A Expired - Lifetime US3672653A (en) 1970-02-12 1970-02-12 Inoculation apparatus

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US (1) US3672653A (enExample)
JP (1) JPS5033969B1 (enExample)
DE (1) DE2106204A1 (enExample)
FR (1) FR2085591B1 (enExample)
GB (1) GB1341110A (enExample)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2546337A (en) * 1944-08-28 1951-03-27 Robert M Gibson Metallurgical apparatus
US2806781A (en) * 1955-01-20 1957-09-17 Air Reduction Method and apparatus for conveying finely-divided material
CA552935A (en) * 1958-02-11 Rapallo Irmo Apparatus for treating molten metals
US3063694A (en) * 1959-08-04 1962-11-13 Joy Mfg Co Apparatus for cleaning gases from ferrous metallurgical operations
FR1395645A (fr) * 1963-02-07 1965-04-16 Huetten Und Bergwerke Rheinhau Installation pour la fabrication de l'acier par soufflage de gaz d'affinage dans le bain
US3236511A (en) * 1962-12-04 1966-02-22 United States Steel Corp Apparatus for introducing materials into an open hearth furnace
US3337201A (en) * 1964-08-28 1967-08-22 Babcock & Wilcox Co Vacuum degasser
US3365186A (en) * 1964-08-24 1968-01-23 Dravo Corp Apparatus for selectively positioning a degassing vessel
US3366376A (en) * 1964-11-30 1968-01-30 United States Steel Corp Oxygen injection apparatus for steelmaking converters

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB728770A (en) * 1952-08-11 1955-04-27 Ansaldo Sa Improved apparatus for controlled introduction of correctives or additions to metallic baths

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA552935A (en) * 1958-02-11 Rapallo Irmo Apparatus for treating molten metals
US2546337A (en) * 1944-08-28 1951-03-27 Robert M Gibson Metallurgical apparatus
US2806781A (en) * 1955-01-20 1957-09-17 Air Reduction Method and apparatus for conveying finely-divided material
US3063694A (en) * 1959-08-04 1962-11-13 Joy Mfg Co Apparatus for cleaning gases from ferrous metallurgical operations
US3236511A (en) * 1962-12-04 1966-02-22 United States Steel Corp Apparatus for introducing materials into an open hearth furnace
FR1395645A (fr) * 1963-02-07 1965-04-16 Huetten Und Bergwerke Rheinhau Installation pour la fabrication de l'acier par soufflage de gaz d'affinage dans le bain
US3365186A (en) * 1964-08-24 1968-01-23 Dravo Corp Apparatus for selectively positioning a degassing vessel
US3337201A (en) * 1964-08-28 1967-08-22 Babcock & Wilcox Co Vacuum degasser
US3366376A (en) * 1964-11-30 1968-01-30 United States Steel Corp Oxygen injection apparatus for steelmaking converters

Also Published As

Publication number Publication date
FR2085591A1 (enExample) 1971-12-24
JPS5033969B1 (enExample) 1975-11-05
DE2106204A1 (de) 1971-09-16
FR2085591B1 (enExample) 1973-10-19
GB1341110A (en) 1973-12-19

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