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Application

2003130358/02, 2003-10-14

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Start date

2003-10-14

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Actual filing date

2003-10-14

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Published

2005-06-27

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Inventor

Sulatskov V.I.Shamanov A.N.Roshchin V.E.Mal'Kov N.V.Kovrizhnykh A.V.Shakhmin S.I.Sudarenko V.S.Kamaev A.N.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Spetsial'Nogo Mashinostroenija I Metallurgii Zavody"Obshchestvo S Ogranichennoj Otvetstvennost'Ju Zavod

METHOD OF PRODUCTION OF SYNTHETIC REFINERY SLAG AT TREATMENT OF MOLTEN FEED IN "FURNACE-LADLE" UNIT AND CHARGE FOR PRODUCTION OF SYNTHETIC REFINERY SLAG Russian patent published in 2005 - IPC

Abstract RU 2255119 C1

FIELD: metallurgy; treatment of steel in "furnace-ladle" unit.

SUBSTANCE: treatment of molten steel feed in teeming ladle in "furnace-ladle" unit is performed with the aid of charge containing lime, slag of secondary aluminum process and stabilized dump slag of ferrovanadium production process. Molten steel feed and part of oxidized furnace slag are preliminarily deoxidized in teeming ladle. Stabilized dump slag of ferrovanadium production process is introduced into deoxidized metal-and-slag melt in the amount of (M) satisfying the following relationship: M : k.m, where m is mass of oxidized furnace slag contained in teeming ladle, kg; k=1.75-0.72 is empirical coefficient. Then lime is introduced.

EFFECT: low cost of steel due to reduced consumption of lime and reduction of time required for production of synthetic refinery slag; improved quality of steel; increased resistance of ladle lining.

4 cl, 1 tbl, 1 ex

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RU 2 255 119 C1

Authors

Sulatskov V.I.

Shamanov A.N.

Roshchin V.E.

Mal'Kov N.V.

Kovrizhnykh A.V.

Shakhmin S.I.

Sudarenko V.S.

Kamaev A.N.

Dates

2005-06-27—Published

2003-10-14—Filed