[go: up one dir, main page]

IT1111408B - Refining molten steel using gas-entrained reagent - introduced through combination tuyere-gate valve nozzle assembly in ladle base - Google Patents

Refining molten steel using gas-entrained reagent - introduced through combination tuyere-gate valve nozzle assembly in ladle base

Info

Publication number
IT1111408B
IT1111408B IT6702978A IT6702978A IT1111408B IT 1111408 B IT1111408 B IT 1111408B IT 6702978 A IT6702978 A IT 6702978A IT 6702978 A IT6702978 A IT 6702978A IT 1111408 B IT1111408 B IT 1111408B
Authority
IT
Italy
Prior art keywords
gas
reagent
gate valve
tuyere
ladle
Prior art date
Application number
IT6702978A
Other languages
Italian (it)
Other versions
IT7867029A0 (en
Original Assignee
British Steel 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 British Steel Corp filed Critical British Steel Corp
Priority to IT6702978A priority Critical patent/IT1111408B/en
Publication of IT7867029A0 publication Critical patent/IT7867029A0/en
Application granted granted Critical
Publication of IT1111408B publication Critical patent/IT1111408B/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Landscapes

  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Molten metal is treated by gas injection in a ladle having in its base a combined tuyere and closable discharge gate valve assembly. The assembly includes a body contg. a gas inlet pipe, a discharge spout and a closure member, each of which may be aligned with the discharge nozzle of the ladle by lateral movements of the body. The injected gas contains an entrained reagent. The closure portion of the body may include a porous plug through which a stirring gas may be introduced after injection of the reagent. The gas may be air, nitrogen, argon, CO, CO2 natural gas or other hydrocarbon. Improved utilization of the reagent is attained of additions from above the bath. Problems associated with lance operation are avoided.
IT6702978A 1978-01-10 1978-01-10 Refining molten steel using gas-entrained reagent - introduced through combination tuyere-gate valve nozzle assembly in ladle base IT1111408B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT6702978A IT1111408B (en) 1978-01-10 1978-01-10 Refining molten steel using gas-entrained reagent - introduced through combination tuyere-gate valve nozzle assembly in ladle base

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6702978A IT1111408B (en) 1978-01-10 1978-01-10 Refining molten steel using gas-entrained reagent - introduced through combination tuyere-gate valve nozzle assembly in ladle base

Publications (2)

Publication Number Publication Date
IT7867029A0 IT7867029A0 (en) 1978-01-10
IT1111408B true IT1111408B (en) 1986-01-13

Family

ID=11299012

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6702978A IT1111408B (en) 1978-01-10 1978-01-10 Refining molten steel using gas-entrained reagent - introduced through combination tuyere-gate valve nozzle assembly in ladle base

Country Status (1)

Country Link
IT (1) IT1111408B (en)

Also Published As

Publication number Publication date
IT7867029A0 (en) 1978-01-10

Similar Documents

Publication Publication Date Title
FR2273873A1 (en) Refining alloy steel - by top blowing with oxygen and introducing a fluid to agitate the melt
GB1421203A (en) Steel production method and apparatus
SE8205881D0 (en) GJUTTERNING
GB1368881A (en) Method of treating molten metal
US4093452A (en) Refining liquid metal
FR2414076A1 (en) Refining molten steel using gas-entrained reagent - introduced through combination tuyere-gate valve nozzle assembly in ladle base
IT1111408B (en) Refining molten steel using gas-entrained reagent - introduced through combination tuyere-gate valve nozzle assembly in ladle base
GB1522957A (en) Removal of sulphur from molten metal
AU535747B2 (en) Stirring molten metal
GB1418488A (en) Method and apparatus for the refining of steel
ES2005846A6 (en) Process for the production of nodular cast iron
JPS58130208A (en) Pretreatment of molten iron
GB808145A (en) Method and means for blowing gases possibly carrying pulverulent material into a bath of molten metal
JPS5757819A (en) Converter steel making method
ES268630U (en) Nozzle for oxygen-injection lances used in the decarburisation of pig iron, in particular chromium pig iron.
JPS5760004A (en) Converter refining method
JPS55164017A (en) Gas blow-in tuyere for refining
Takemura et al. The development of RH-injection technology
JPS55107715A (en) Blowing method of dephosphorizer to bottom blowing converter
GB1290831A (en)
Laichao et al. Experimental Study on the Side-Blown Converter With Two Rows of Oxygen Lances
GB1345025A (en) Plant for continuously refining pig iron
JPS6442511A (en) Secondary combustion method in converter
GB609850A (en) Improvements in and relating to the desulphurization of pig iron
JPS56150121A (en) Stirring method in refining molten iron in vessel

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961231