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公开(公告)号：CA2241276A1
公开(公告)日：1997-06-26
申请号：CA2241276
申请日：1996-12-19
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： FRITZ ERNST , RAMASEDER NORBERT
Abstract: The method of measuring electromagnetic waves emanating from the interior of a melt (3), in particular metal melt, involves blowing gas into the melt (3) to form a gas-filled cavity (26) and observation and evaluation of the electromagnetic waves emitted by the melt (3) through the inblown gas by directing the electromagnetic waves via an optical system (20) to a detector (22) for determining temperature and/or chemical composition. To eliminate spurious measurements, the emitted electromagnetic waves are separated from electromagnetic waves (36, 37, 39, 40) aligned obliquely relative to the optical axis (38) of the optical system (20) and present outside a boundary radius (41) drawn from that optical axis (38). This is done by: deviating these electromagnetic waves from the optical axis (38) in a wave scattering device (42) of the optical system (20) so that only electromagnetic waves aligned more or less parallel to the optical axis (38) of the optical system (20) reach a detector (22) located downstream of the optical system (20); and/or by displacing the optical system (20) and aligning the optical axis (38) of said system relative to the cavity (26) until the intensity of the emitted electromagnetic waves when evaluated reaches a maximum value.
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公开(公告)号：CA2129407A1
公开(公告)日：1995-02-05
申请号：CA2129407
申请日：1994-08-03
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： FRITZ ERNST , DIMITROV STEFAN
Abstract: In a process for producing a metal melt, in particular, a steel melt, in an electric arc furnace, the bath surface is covered by a foamed slag during the flat bath period(s). In order to ensure the advantages of an electric arc enveloped by foamed slag over an extended period of time at expenditures as low as possible, level measuring of the layer height of a slag is carried out several times during a furnace heat. Foamed slagenveloping an electric arc generated by at least one electrode is formed by blowing solids, gases or a mixture of solids and gases into or onto the slag or the metal melt. The layer height of the foamed slag is dimensioned such that the foamed slag at least extends over all of the electric arc, a number of advantages, thus, being, utilized to the optimum degree.
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公开(公告)号：ZA9904054B
公开(公告)日：1999-12-20
申请号：ZA9904054
申请日：1999-06-18
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： FRITZ ERNST
IPC: C21B20060101 , C21C5/46 , C21C5/52 , C22B20060101 , C21B , C22B
CPC classification number: Y02P10/216
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公开(公告)号：BR9604922A
公开(公告)日：1999-03-30
申请号：BR9604922
申请日：1996-04-09
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： PIRKLBAUER WILFRIED , FRITZ ERNST , RAMASEDER NORBERT , MUELLER HEINZ , DIMITROV STEFAN
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：ZA9805594B
公开(公告)日：1999-01-25
申请号：ZA9805594
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
CPC classification number: F27B3/186 , C21C5/5252 , C21C5/562 , C21C5/567 , C21C2005/366 , C21C2300/02 , F27B3/045 , F27B3/225 , F27B19/04 , Y02P10/212
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Patent Agency Ranking
公开(公告)号：CA2217896A1
公开(公告)日：1996-10-17
申请号：CA2217896
申请日：1996-04-09
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： FRITZ ERNST , MUELLER HEINZ , RAMASEDER NORBERT , PIRKLBAUER WILFRIED , DIMITROV STEFAN
Abstract: In order to profitably process various iron ores having different compositions, a plant for producing iron smelts (24), in particular steel smelts, such as crude steel smelts, has an electric arc furnace vessel (1) and a refiner vessel (3) joined to the furnace vessel (1) by a weir (34). The refiner vessel (3) has an at least partially sloping down bottom, starting from the weir (34), an oxygen supply (35, 36) and an iron smelt discharge aperture (41) arranged in its end area opposite the furnace vessel (1). A decantation vessel (2) follows the furnace vessel (1) and shares therewith a common bottom (18). The end area of the decantation vessel (2) opposite the furnace vessel (1) has a slag discharge aperture (43). A liquid pig iron (20) supply (21) opens into the furnace vessel (1). A solid iron ore (7) preheating shaft (5) arranged above the furnace vessel (1) opens into the furnace vessel (1) through its lid (4) and is closed by a gas-permeable, cooled shut-off device (6). A charging shaft (10) arranged above the furnace vessel (1) opens into the furnace vessel (1) and is closed by a gas-tight, cooled shut-off device.
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公开(公告)号：AT213324T
公开(公告)日：2002-02-15
申请号：AT96942176
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：TR200100606T2
公开(公告)日：2001-10-22
申请号：TR200100606
申请日：1999-02-22
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： FRITZ ERNST
IPC: C21B11/10 , C21B13/12 , C21C5/28 , C21C5/46 , C22B9/04 , 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：AU723209B2
公开(公告)日：2000-08-17
申请号：AU1132497
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：DE59603568D1
公开(公告)日：1999-12-09
申请号：DE59603568
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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