公开(公告)号：ZA9602631B

公开(公告)日：1996-10-07

申请号：ZA9602631

申请日：1996-04-02

Applicant: VOEST ALPINE IND ANLAGEN

Inventor： DIMITROV STEFAN ,  RAMASEDER NORBERT ,  PIRKBAUER WILFRIED ,  FRITZ ERNST ,  MULLER HEINZ

IPC: C21C5/52 ,  C21C5/56 ,  F27B3/08 ,  F27D13/00 ,  C21B

CPC classification number: C21C5/5229 ,  C21C5/5252 ,  C21C5/562 ,  F27B3/085 ,  Y02P10/212

公开(公告)号：ZA962631B

公开(公告)日：1996-10-07

申请号：ZA962631

申请日：1996-04-02

Applicant: VOEST ALPINE IND ANLAGEN

Inventor： DIMITROV STEFAN ,  RAMASEDER NORBERT ,  PIRKBAUER WILFRIED ,  FRITZ ERNST ,  MULLER HEINZ

IPC: C21C5/52 ,  C21C5/56 ,  F27B3/08 ,  F27D13/00 ,  C21B

Abstract: In order to be able to process in an economical manner different iron carriers in varying quantitative compositions, a plant for the production of iron melts (4), in particular steel melts, such as crude steel melts, is equipped withan electric are furnace vessel (1),a refining vessel (3) following upon the furnace vessel (1) via a weir (34) and including a bottom departing from the weir (34) in an at least partially downwardly inclined manner and an oxygen supply means (35, 36) as well as an iron melt tap (41) provided in its end region farther remote from the furnace vessel (1),a decanting vessel (2) following upon the furnace vessel (1) and having a common bottom (18) with the furnace vessel (1), said decanting vessel being provided with a slag tap (43) in its end region farther remote from the furnace vessel (1),a supply means (21) supplying liquid pig iron (20) and opening into the furnace vessel (1),a preheating shaft (5) supplying solid iron carries (7), said preheating shaft being arranged above the furnace vessel (1) and opening into the furnace vessel (1) via its lid (4) via a gas-permeable cooled shut-off means (6), anda charging shaft (10) arranged above the furnace vessel (1) and opening into the furnace vessel (1) via a gas-impermeable cooled shut-off means (11) (FIG. 1).

公开(公告)号：DD283651A5

公开(公告)日：1990-10-17

申请号：DD32286788

申请日：1988-12-08

Applicant: VOEST ALPINE IND ANLAGEN

Inventor： BOGDAN VULETIC ,  NAGL MICHAEL ,  SEIRLEHNER LEOPOLD ,  PIRKBAUER WILFRIED

IPC: C21B5/00 ,  C21B11/02 ,  C21B13/00 ,  C21B13/14 ,  C21B13/02 ,  C21C5/48

Abstract: A process for operating a fusion gasifier (4) is described, in which iron ore-containing raw materials or iron sponge obtained therefrom by direct reduction are fused by addition of carbon carriers and supply of an oxygen-containing gas via oxygen nozzles (6) in a moving bed thus established and are (fully) reduced to molten crude iron or steel raw material. In the event of failure or a reduction in the oxygen supply below a predetermined rate and in the event of a failure of the water-cooling of the oxygen nozzles, the oxygen supply which may still persist is interrupted for the protection thereof and, instead, an inert gas is introduced via the oxygen nozzles into the fusion gasifier. This prevents molten fluid-bed mass from entering the oxygen nozzles and solidifying therein. In the event of failure of the water cooling of the oxygen nozzles, the inert gas serves at the same time as a coolant.