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公开(公告)号：CZ291900B6
公开(公告)日：2003-06-18
申请号：CZ323397
申请日：1996-04-09
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： DIMITROV STEFAN , RAMASEDER NORBERT , PIRKLBAUER WILFRIED , FRITZ ERNST , MULLER HEINZ
Abstract: The present invention relates to a plant for the production of iron melt (24)in particular steel melts, such as crude steel melts, the plant being equipped with an electric arc 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) arranged 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), and a 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).
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公开(公告)号：AT242340T
公开(公告)日：2003-06-15
申请号：AT99904611
申请日：1999-02-22
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： FRITZ ERNST
IPC: C22B9/04 , C21B11/10 , C21B13/12 , C21C5/28 , C21C5/46 , C21C5/48 , C21C5/52 , C21C7/072 , C21C7/10 , C22B9/05 , C22B9/20 , F23D14/22 , F23D14/32 , F23D17/00
Abstract: Charge materials containing metal and/or metal oxides are fed into the metallurgical vessel in solid and possible molten form. The energy for melting and final reduction of the charge materials are provided electrically or by combustion/ gasification of materials containing carbon. An Independent claim is given for a multifunction lance used for implementation of the method for producing a metal melt. The lance consists of several concentric tubes surrounding one another. The second tube is shaped as a Laval nozzle for delivery of oxygen, and surrounds a central tube serving for delivery of solid substances or dust. The fifth tube surrounding the fourth tube forms an annular gap whose discharge channels are directed away from the central longitudinal lance axis.
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公开(公告)号：AT186332T
公开(公告)日：1999-11-15
申请号：AT96908911
申请日：1996-04-09
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： DIMITROV STEFAN , RAMASEDER NORBERT , PIRKLBAUER WILFRIED , FRITZ ERNST , MUELLER HEINZ
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).
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公开(公告)号：ZA9610667B
公开(公告)日：1997-07-11
申请号：ZA9610667
申请日：1996-12-19
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： FRITZ ERNST , RAMASEDER NORBERT
Abstract: The method uses a measuring device which blows a gas into the melt (3) to form a gas-filled cavity (26), with detection of the electromagnetic UV or IR radiation emitted into the latter via an optical system (20) and an associated detector (22). The optical system has a wave scattering device (42) for elimination of the electromagnetic waves oblique to the optical axis (38) of the optical system. Only the waves parallel to the optical axis are received by the detector and/or the optical system is displaced and the optical axis aligned until the detector signal reaches a maximum value.
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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
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).
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Patent Agency Ranking
公开(公告)号：DE502004002973D1
公开(公告)日：2007-04-05
申请号：DE502004002973
申请日：2004-05-03
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： FRITZ ERNST
Abstract: The invention relates to a method and a production plant for producing molten metal, in particular molten steel for steel or ferro-alloys that are alloyed with Cr or Cr and Ni in synchronised method stages in several reaction vessels. The aim of the invention is to reduce production costs and to synchronise the production time for a batch of molten metal with the cycle time of a continuous casting plant that is positioned downstream. To achieve this: in a first method stage, alloying agent carriers are introduced into a base melt, a reduction agent, re-circulated slag, and/or slag forming agents and an energy carrier are then added and the alloying agent carriers are melted and reduced to a great extent by the action of a top-blowing and base-blowing process using an oxygen carrier, to produce a first pre-alloy melt; in a second method stage, a base melt and Cr carriers are optionally introduced, a reduction agent, re-circulated slag and a fossil energy carrier are then added and the Cr carrier is melted and reduced to a great extent by the action of a top-blowing and base-blowing process using an oxygen carrier, to produce a second pre-alloy melt; and in a third stage, alloying agents, in particular ferro-alloys, are added to the second pre-alloy melt, in addition to slag forming agents, and a decarbonisation process is carried out by the action of a top-blowing and base-blowing process using an oxygen carrier, to produce an alloy melt with a predefined chemical analysis and temperature.
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公开(公告)号：DE59608744D1
公开(公告)日：2002-03-21
申请号：DE59608744
申请日：1996-12-19
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： FRITZ ERNST , RAMASEDER NORBERT
Abstract: The method uses a measuring device which blows a gas into the melt (3) to form a gas-filled cavity (26), with detection of the electromagnetic UV or IR radiation emitted into the latter via an optical system (20) and an associated detector (22). The optical system has a wave scattering device (42) for elimination of the electromagnetic waves oblique to the optical axis (38) of the optical system. Only the waves parallel to the optical axis are received by the detector and/or the optical system is displaced and the optical axis aligned until the detector signal reaches a maximum value.
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公开(公告)号：ZA994054B
公开(公告)日：1999-12-20
申请号：ZA994054
申请日：1999-06-18
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： FRITZ ERNST
IPC: C21B20060101 , C21C5/46 , C21C5/52 , C22B20060101 , C21B , C22B
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公开(公告)号：ZA985594B
公开(公告)日：1999-01-25
申请号：ZA985594
申请日：1998-06-26
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： DIMITROV STEFAN , RAMASEDER NORBERT , PIRKLBAUER WILFRIED , ZHAI YOYOU , STEINS JOHANNES , FRITZ ERNST , MUELLER JOHANNES
Abstract: To be able to produce metal melts using any metal carriers incurring in metallurgical practice as the charging materials, namely in the most diverse quantitative compositions, a plant for producing metal melts is provided with the following characteristic features:an electric arc furnace vessel (1) provided with one charging opening (11, 21) for a metal melt and/or scrap and/or direct reduced metal, in particular direct reduced iron, and/or ore and at least one electrode (16) and one slag tapping means (22),an oxygen-blowing converter vessel (3) provided with one melt tapping means (41),wherein the oxygen-blowing converter vessel (3) and the electric arc furnace vessel (1) form a unit which is connected via an overflow weir (34) and which is rigidly mounted on the foundation and,wherein the bath surface related specifically to the bath volume is smaller in the oxygen-blowing converter vessel (3) than in the electric arc furnace vessel (1) andthe oxygen-blowing converter vessel (3) shares a common reaction space with the electric arc furnace vessel (1), which space is arranged above the bath level of these vessels. (FIG. 1).
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公开(公告)号：CA2264665A1
公开(公告)日：1999-01-07
申请号：CA2264665
申请日：1998-06-26
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： STEINS JOHANNES , ZHAI YOYOU , MUELLER JOHANNES , FRITZ ERNST , PIRKLBAUER WILFRIED , RAMASEDER NORBERT , DIMITROV STEFAN
Abstract: In order to produce molten metal from all types of metal carriers used in metallurgy, and in particular from a wide range of quantitative combinations, an installation for producing molten metal comprises the following components: an electric arc furnace (1) having a charge opening (11, 21) for molten metal and/or scrap and/or directly-reduced metal, especially directly-reduced iron and/or ore, and at least one electrode (16) and a slag tapping unit (22); and an oxygen lancing converter vessel (3) fitted with a slag tapping unit (41). Said oxygen lancing converter vessel (3) forms a single unit with the electric arc furnace (1) which unit is connected by means of an overflow weir (34) and rigidly mounted on the base. The bath surface specifically related to bath volume is smaller in the oxygen lancing converter vessel (3) than in the electric arc furnace (1). Lastly, the oxygen lancing converter vessel (3) shares a common reaction chamber with the electric arc furnace (1), which chamber is situated above the bath level of the two vessels.
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