FR2349810A1 - Lance for injecting fluidised material into molten metal - using steel tube surrounded by wire grid anchoring refractory sheath - Google Patents

Lance for injecting fluidised material into molten metal - using steel tube surrounded by wire grid anchoring refractory sheath

Info

Publication number
FR2349810A1
FR2349810A1 FR7710340A FR7710340A FR2349810A1 FR 2349810 A1 FR2349810 A1 FR 2349810A1 FR 7710340 A FR7710340 A FR 7710340A FR 7710340 A FR7710340 A FR 7710340A FR 2349810 A1 FR2349810 A1 FR 2349810A1
Authority
FR
France
Prior art keywords
lance
injecting
molten metal
steel tube
bandage
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.)
Granted
Application number
FR7710340A
Other languages
French (fr)
Other versions
FR2349810B1 (en
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.)
Stahlwerke Pein-Salzgitter AG
Original Assignee
Stahlwerke Pein-Salzgitter 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 Stahlwerke Pein-Salzgitter AG filed Critical Stahlwerke Pein-Salzgitter AG
Publication of FR2349810A1 publication Critical patent/FR2349810A1/en
Application granted granted Critical
Publication of FR2349810B1 publication Critical patent/FR2349810B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C21C5/4613—Refractory coated lances; Immersion lances
    • 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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising

Abstract

Lance for injecting fluidised prods. into a bath of molten metal, consists of a steel tube coated by a refractory contg. an envelope of wires which increase the adheres of the refractory. The wires form an interconnected grid making a bandage round the steel tube. The bandage is covered by ca. 10 mm of refractory concrete contg. a high proportion of clay. The wire bandage is pref. closed by insertion of a weft, i.e. cross-wires. The lance is pref. used for injecting fluidised materials which only evolve a little gas when in contact with the molten metal where the refractory pref. extends to the working end of the lance whereas the bandage stops 10 mm from the end. Used e.g. for injecting fluidised materials into molten iron, the lance possessing a long working life.
FR7710340A 1976-04-28 1977-03-31 Lance for injecting fluidised material into molten metal - using steel tube surrounded by wire grid anchoring refractory sheath Granted FR2349810A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19767613309 DE7613309U1 (en) 1976-04-28 1976-04-28 LANCE FOR INJECTING FLUIDIZED SUBSTANCES INTO A METAL MELT

Publications (2)

Publication Number Publication Date
FR2349810A1 true FR2349810A1 (en) 1977-11-25
FR2349810B1 FR2349810B1 (en) 1981-11-06

Family

ID=6664789

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7710340A Granted FR2349810A1 (en) 1976-04-28 1977-03-31 Lance for injecting fluidised material into molten metal - using steel tube surrounded by wire grid anchoring refractory sheath

Country Status (5)

Country Link
BE (1) BE853405A (en)
DE (1) DE7613309U1 (en)
FR (1) FR2349810A1 (en)
LU (1) LU77075A1 (en)
TR (1) TR20313A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466508A1 (en) * 1979-09-27 1981-04-10 Desaar Rene VIROLE FOR LANCE BLOWING OR INJECTION
EP0062217A1 (en) * 1981-04-02 1982-10-13 Mono Construction Limited Metallurgical lance
FR2676669A1 (en) * 1991-05-24 1992-11-27 Terres Refractaires Boulonnais Injection lance for treating molten metals

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3719862C2 (en) * 1986-08-20 1988-10-27 Plibrico Co Gmbh DIVE LANCE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466508A1 (en) * 1979-09-27 1981-04-10 Desaar Rene VIROLE FOR LANCE BLOWING OR INJECTION
EP0062217A1 (en) * 1981-04-02 1982-10-13 Mono Construction Limited Metallurgical lance
FR2676669A1 (en) * 1991-05-24 1992-11-27 Terres Refractaires Boulonnais Injection lance for treating molten metals

Also Published As

Publication number Publication date
TR20313A (en) 1981-01-22
FR2349810B1 (en) 1981-11-06
DE7613309U1 (en) 1976-09-02
LU77075A1 (en) 1977-08-12
BE853405A (en) 1977-08-01

Similar Documents

Publication Publication Date Title
IT1122470B (en) METHOD FOR DIRECT REDUCTION OF IRON USING COAL GAS
GB1431123A (en) Metallurgical lances
FR2349810A1 (en) Lance for injecting fluidised material into molten metal - using steel tube surrounded by wire grid anchoring refractory sheath
GB2113739B (en) Reinforcing member
JPS54150751A (en) Sheath heater
GB2021151A (en) Vermicular graphite iron production by rare-earth metal addition
IT1257701B (en) IMPROVEMENTS TO THE PROCEDURE FOR THE EXECUTION OF THE COVERING OF A GALLERY AND EQUIPMENT SUITABLE FOR THE PURPOSE.
IT8123285A0 (en) PROCEDURE FOR DESULPHURIZATION IN THE PRODUCTION OF GAS IN A MOLTEN IRON BATH REACTOR.
GB1484745A (en) Metallurgical lances
JPS5527838A (en) Method of manufacturing artificial rock material from converter slag
JPS5585479A (en) Blast furnace lining made from refractory concrete finished member
IT7849259A0 (en) IMPROVEMENT IN LANCES FOR OXYGEN FURNACES FOR STEEL MANUFACTURING
JPS5237510A (en) Dephosphorization method of molten cast iron
JPS53120608A (en) Construction method for throat part of converter and special form brick to be used for it
JPS51131403A (en) A method of building iron trough for blast furnaces
JPS5538975A (en) Recarburizer for iron manufacture and steel making
JPS57178026A (en) Reinforcing rod for foundation pile head
JPS56125251A (en) Manufacture of electric furnace slag hardened body
JPS5520285A (en) Blast furnace water slag based hydraulic cement
JPS57200512A (en) Method for closing tuyere
JPS5354115A (en) Production of steel wire
Raines Extending Stool Life.(Retroactive Coverage)
ES456547A1 (en) Immersion lance to blow solid granulated materials pulverulents in casted metals, especially desulfurants in cast irrigation. (Machine-translation by Google Translate, not legally binding)
IT1087653B (en) Injection lance suitable for desulphurising molten iron - using finned pipe with anchors inside a refractory sleeve
FR2402006A1 (en) Injection lance suitable for desulphurising molten iron - using finned pipe with anchors inside a refractory sleeve

Legal Events

Date Code Title Description
ST Notification of lapse