DEVICE FOR REMOVING IMPURITIES CONTAINED IN MELTED IRON FLOWING FROM SHAFT FURNACE

Title:

DEVICE FOR REMOVING IMPURITIES CONTAINED IN MELTED IRON FLOWING FROM SHAFT FURNACE

Document Type and Number:

WIPO Patent Application WO/1985/003525

Kind Code:

A1

Abstract:

A slag trough (2N) for removing molten shaft furnace slag isolated from melted iron by a skimmer (3) is provided upstream from the skimmer (3) mounted in midway on a molten iron trough (1), and at least two partition walls (4a, 4b, 4c) are provided at a predetermined distance in the trough (1) downstream from the skimmer (3), the trough (1) is thus partitioned into at least two reaction zones (6a, 6b, 6c), lances (8a, 8b, 8c) for blowing particular flux for removing the impurities contained in the molten iron via carrier gas are disposed substantially vertically above the two reaction zones, the lower ends of the lances are isolated substantially vertically from the surface of the melted iron, and branch slag troughs (9a, 9b, 9c) are respectively provided with at least two reaction zones (6a, 6b, 6c).

Inventors:

YAMADA KENZO (JP)
IWASAKI KATSUHIRO (JP)
OHTSUKI MITSURU (JP)
ITO HARUO (JP)

Application Number:

PCT/JP1985/000046

Publication Date:

August 15, 1985

Filing Date:

February 04, 1985

Export Citation:

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Assignee:

NIPPON KOKAN KK (JP)

International Classes:

C21B7/14; C21C1/00; F27B1/21; (IPC1-7): C21C1/00; C21B7/14; C21C1/02; C21C1/04

Foreign References:

JPS3913625B1
JPS4621810B1

Other References: