US20160054282A1 - Lance and method for determining reaction data of the course of a reaction - Google Patents
Lance and method for determining reaction data of the course of a reaction Download PDFInfo
- Publication number
- US20160054282A1 US20160054282A1 US14/779,615 US201414779615A US2016054282A1 US 20160054282 A1 US20160054282 A1 US 20160054282A1 US 201414779615 A US201414779615 A US 201414779615A US 2016054282 A1 US2016054282 A1 US 2016054282A1
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- United States
- Prior art keywords
- lance
- gas
- reaction
- measuring
- measuring lines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/205—Metals in liquid state, e.g. molten metals
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/34—Blowing through the bath
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- G01N33/206—
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/35—Blowing from above and through the bath
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4673—Measuring and sampling devices
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/48—Bottoms or tuyéres of converters
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/22—Arrangements of air or gas supply devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/28—Arrangement of controlling, monitoring, alarm or the like devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/14—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference
- G01N7/18—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference by allowing the material to react
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
- F27D2003/162—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel
- F27D2003/163—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel the fluid being an oxidant
- F27D2003/164—Oxygen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
- F27D2003/166—Introducing a fluid jet or current into the charge the fluid being a treatment gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
- F27D2003/167—Introducing a fluid jet or current into the charge the fluid being a neutral gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
- F27D2003/168—Introducing a fluid jet or current into the charge through a lance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Definitions
- the invention relates to a lance and a method for the determination of reaction data of a reaction sequence, in which a reaction gas is top-blown by means of at least one lance onto a metallic melt in a metallurgical vessel and simultaneously measured data are recorded, as a function of which reaction data about the reaction sequence are determined, wherein the lance for the recording of measured data blows out a gas being conveyed separately from the reaction gas via at least one outlet opening of at least one measuring line.
- the measured electrical conductivity is dependent on a large number of reaction parameters of the reaction sequence, and so the danger of an overfoaming can be detected only poorly reliably by means of such methods. Furthermore, metallurgical changes in the reaction sequence are manifested relatively sluggishly in the electrical conductivity, thus making a dynamic determination of reaction data about the reaction sequence difficult.
- a method for the determination of the depth of immersion of a lance in a metallic melt is known from DE 2239216 A1.
- a pressurized gas being conveyed separately from the reaction gas of the lance is blown out at the bottom end of the lance via a measuring line of the lance.
- Measured data about the pressure differences between an ambient pressure and the pressure at the bottom end of the lance are used for the determination of the depth of immersion of the lance.
- extremely violent chemical reactions of the reaction gas with the melt can be expected during the measurement, which falsifies the recording of measured data and thus may jeopardize the stability of the process.
- the task of the invention is therefore, starting from the prior art depicted initially, to provide a method that can determine the reaction data of a metallurgical reaction sequence rapidly and reliably.
- the method will be simple and resistant to metallurgical processes.
- the invention accomplishes the stated task by the fact that the lance for the recording of measured data blows out the gas being conveyed separately from the reaction gas laterally via at least one outlet opening of at least one measuring line, wherein the internal pressure of at least one gas bubble formed at this outlet opening of the respective measuring line is measured.
- the lance for the recording of measured data blows out the gas being conveyed separately from the reaction gas laterally via at least one outlet opening of at least one measuring line, wherein the internal pressure of at least one gas bubble formed at this outlet opening of the respective measuring line is measured, measured data can be recorded rapidly and reliably.
- reaction data about the reaction sequence can be determined subsequently.
- a pressure measurement at the measuring line with an outlet opening discharging alongside the lance can be performed relatively easily and, by virtue of the circumstance of a direct interaction of the gas bubble with the melt or with its foamed slag, can also be achieved with extremely fast response, which may entail numerous advantages—including with respect to the process safety.
- such a pressure measurement can be performed sufficiently far removed from the loads caused by the reaction sequence, which may permit an extremely stable and precise process with reproducible results.
- oxygen can be excellent as the reaction gas.
- reaction data about the reaction sequence are determined as a function of an establishment of the difference between the measured internal pressures of the gas bubbles.
- the measuring lines discharging at the same lance height form gas bubbles differing in size from one another, not only is it possible to record measured pressure data suitable for establishment of a difference, but in addition these measured pressure data may also contribute to the increase of the accuracy of the reaction data.
- the measuring lines discharging at the same lance height it is possible, among other things, to suppress disturbances acting on both measurements and to generate measured data with increased signal-to-noise ratio.
- measuring lines discharging at different lance heights form equally large gas bubbles.
- by plotting of gas bubbles at difference lance heights it is possible with methodical reliability to infer a filling level height of the foamed slag in the vessel.
- An increased measurement accuracy can be achieved when measuring lines discharging at different lance heights form gas bubbles of different size.
- the mutual influence of the measuring lines can be considerably reduced when the measuring lines blow out gas on opposite sides on the lance body. In this way a further increased measurement accuracy can be expected. This may be particularly advantageous when the measuring lines blow out gas diametrically oppositely on the lance body.
- the measuring line or the measuring lines is or are simultaneously cooled by the cooling medium that cools the lance, steady conditions of the gas discharge can be achieved. In this way an improved reproducibility of the method can be established.
- the method according to the invention can be particularly advantageous by the fact that reaction data, on the basis of which the reaction sequence of a top-blowing process can be controlled or adjusted, are determined therewith. For example, it is possible in this way to detect a slopping in timely manner and thus to reduce the danger of a slopping or to initiate countermeasures in this regard.
- a further task of the invention is to provide, for top-blowing a reaction gas onto a metallic melt disposed in a metallurgical vessel, a structurally simple and robust lance with which measured data can be obtained rapidly and reproducibly in order to be able to determine reaction data about the reaction sequence.
- the invention accomplishes the task with respect to the lance by the fact that the measuring line in at least one outlet opening ends laterally at the lance jacket of the lance body and is formed for the generation of at least one gas bubble.
- this opening disposed alongside on the lance jacket can be used to record measured data relatively far removed from the top-blowing region.
- the measurement can be performed in a manner that is relatively insensitive to the turbulent flows occurring in this lower zone of the lance.
- this outlet opening is formed for the generation of at least one gas bubble and a relatively disturbance-free zone is needed for the streaming of gas bubbles into the melt or foamed slag in order to record rapid and accurate measured data about the reaction sequence.
- the danger of an undesired slopping can also be reduced by means of the lance according to the invention, or suitable countermeasures can be initiated in timely manner therewith.
- a reliable early detection of a disadvantageous slopping is possible in this way.
- these measured data can be determined via the lance relatively far removed from the loads caused by the reaction sequence when a measuring device is provided that contains, for the recording of measured data, a sensor, which is in communication with the measuring line for the recording of measured data dependent on the internal pressure of the gas bubble.
- a difference measurement can be permitted when the lance body contains at least two measuring lines, which discharge laterally on the lance body.
- the outlet openings of the measuring lines may have different outlet cross sections.
- the measuring lines may even discharge at the same height on the lance body.
- the outlet openings of the measuring lines discharge laterally at different heights on the lance jacket.
- this in combination with different outlet cross sections may achieve an increased sensitivity. In this way the accuracy of the measured data can be increased.
- the mutual influence of the measuring lines may be reduced when their outlet openings discharge on opposite sides on the lance body. In this way, not only can the measurement accuracy be further increased but also the construction complexity can be reduced therewith, especially in regard to the cooling of the lance. In particular, it may be excellent for this purpose when the outlet openings discharge diametrically oppositely on the lance body.
- the temperature at the bubbling opening of the measuring line may be stabilized when the measuring line is in thermally conducting communication, at least zonally, with the cooled lance jacket of the lance body. In this way an increased measurement accuracy can be achieved.
- FIG. 1 shows a cutaway side view of a device for the determination of reaction data
- FIG. 2 shows a detail view of FIG. 1 .
- a lance 1 is illustrated that is dipped into a metallurgical vessel 2 , which contains a metallic melt 3 , for example a ferrous material, an aluminum material, a metallic alloy or the like.
- the lance 1 is used to top-blow a reaction gas 4 onto the melt 3 , in order to set a metallurgical reaction sequence in motion in this way.
- a reaction sequence may be, for example, a refining of pig iron with oxygen, which is known as the LD process.
- the lance 1 is equipped with a cooled outer lance jacket 5 .
- Such a cooling may be created, for example, by a double-walled construction of the lance jacket 5 that conveys water as coolant, although for clarity this is not further illustrated in the drawings.
- the gas supply 7 of the reaction gas 4 of the lance 1 is discharged in the bottom end of the lance 1 via an opening 8 or a plurality of openings, not illustrated in more detail, of the lance jacket 5 , and flows onto the melt 3 . It goes without saying that any opening shape or number of openings 8 is conceivable.
- the lance 1 has at least one—in the specific exemplary embodiment two measuring lines 9 and 10 —which is provided in the lance body 11 in a manner protected from the influences of the top-blowing process. According to the invention, these measuring lines 9 and 10 discharge in at least one outlet opening.
- two outlet openings 12 and 13 are provided on the lance jacket 5 , disposed laterally or alongside, of the lance body 11 .
- the outlet openings 12 and 13 constructed as bubbling openings—generate gas bubbles 14 and 15 , which can be seen better in FIG. 2 .
- These gas bubbles 14 and 15 stream into the foamed slag 16 , which is formed above the melt 3 as a result of the metallurgical reaction sequence.
- a measuring line 20 which with sensors 17 and 18 records measured data about the respective pressure of measuring lines 9 and 10 and thus also about the internal pressure of the gas bubbles 14 and 15 at the respective outlet opening 12 and 13 , it is now possible to infer reaction data of the reaction sequence or to determine these therewith accurately and rapidly.
- a slopping which is known to be undesirable in top-blowing processes, can be detected in timely manner—subsequently the top-blowing process is advantageously adjustable and controllable on the basis of the reaction data recorded in this way.
- the outlet openings 12 and 13 of the two measuring lines 9 and 10 end at different heights laterally on the lance jacket 5 .
- the measuring lines 9 and 10 are in thermally conducting communication in their outlet zones with the cooled lance jacket 5 , in order to cool these measuring lines 9 and 10 simultaneously with the lance jacket 5 and thus to ensure reproducible process conditions for the bubbling of gas 14 , 15 , 19 into the foamed slag 16 .
- the outlet cross sections 12 , 13 of the measuring lines 9 , 10 discharge on opposite sides 21 , 22 on the lance body 11 .
- the bubbling of gas 14 , 15 , 19 is highly independent of one another—especially when the outlet openings 12 , 13 of the measuring lines 9 , 10 are disposed diametrically oppositely on the lance body 11 .
- the measurement accuracy is considerably improved.
- the measuring lines 12 , 13 discharge respectively on different sides 21 , 22 or alongside the lance body 11 , although this does not necessarily have to be the case.
- a combination of different heights of the outlet openings 12 , 13 with various outlet cross sections is also conceivable here—although this is not illustrated in more detail.
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- General Engineering & Computer Science (AREA)
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- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50204/2013 | 2013-03-25 | ||
ATA50204/2013A AT514132B1 (de) | 2013-03-25 | 2013-03-25 | Verfahren zur Bestimmung von Reaktionsdaten eines Reaktionsablaufs |
PCT/AT2014/050074 WO2014153585A2 (de) | 2013-03-25 | 2014-03-25 | Lanze und verfahren zur bestimmung von reaktionsdaten eines reaktionsablaufs |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2014/050074 A-371-Of-International WO2014153585A2 (de) | 2013-03-25 | 2014-03-25 | Lanze und verfahren zur bestimmung von reaktionsdaten eines reaktionsablaufs |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/613,417 Division US10126286B2 (en) | 2013-03-25 | 2017-06-05 | Lance and method for determining reaction data of the course of a reaction |
Publications (1)
Publication Number | Publication Date |
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US20160054282A1 true US20160054282A1 (en) | 2016-02-25 |
Family
ID=50721507
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/779,615 Abandoned US20160054282A1 (en) | 2013-03-25 | 2014-03-25 | Lance and method for determining reaction data of the course of a reaction |
US15/613,417 Active US10126286B2 (en) | 2013-03-25 | 2017-06-05 | Lance and method for determining reaction data of the course of a reaction |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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US15/613,417 Active US10126286B2 (en) | 2013-03-25 | 2017-06-05 | Lance and method for determining reaction data of the course of a reaction |
Country Status (8)
Country | Link |
---|---|
US (2) | US20160054282A1 (de) |
EP (1) | EP2978864B1 (de) |
JP (1) | JP6620362B2 (de) |
KR (1) | KR102197211B1 (de) |
CN (1) | CN105247079B (de) |
AT (1) | AT514132B1 (de) |
CA (1) | CA2907867C (de) |
WO (1) | WO2014153585A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111289404B (zh) * | 2020-03-16 | 2022-07-05 | 哈尔滨理工大学 | 铝合金熔体动态呼吸法测氢装置用氢分压快速检测方法 |
Citations (10)
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US3045997A (en) * | 1959-03-02 | 1962-07-24 | Armco Steel Corp | Porous oxygen lance |
US4192490A (en) * | 1977-10-04 | 1980-03-11 | Stiftelsen For Metallurgisk Forskning | Lance for injecting powdery material into molten metal |
US4406443A (en) * | 1981-07-30 | 1983-09-27 | Denka Engineering Kabushiki Kaisha | Apparatus for distributing gas-laden refining powdered-particles into molten metal |
US4602574A (en) * | 1984-11-08 | 1986-07-29 | United States Steel Corporation | Destruction of toxic organic chemicals |
US4750716A (en) * | 1986-04-04 | 1988-06-14 | Ashland Oil, Inc. | Injection lance |
US4854553A (en) * | 1988-06-03 | 1989-08-08 | Labate M D | Self shielding lance |
US5244646A (en) * | 1991-12-10 | 1993-09-14 | Advance Metals Technology Corporation | Prevention of blockage of charge feed tube in smelting furnace |
US5282881A (en) * | 1989-08-24 | 1994-02-01 | Ausmelt Pty. Ltd. | Smelting of metallurgical waste materials containing iron compounds and toxic elements |
US5571486A (en) * | 1993-04-02 | 1996-11-05 | Molten Metal Technology, Inc. | Method and apparatus for top-charging solid waste into a molten metal bath |
US7731891B2 (en) * | 2002-07-12 | 2010-06-08 | Cooper Paul V | Couplings for molten metal devices |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB934112A (en) * | 1961-03-16 | 1963-08-14 | Consett Iron Company Ltd | An improved blowing lance |
DE1290557B (de) | 1964-03-23 | 1969-03-13 | Krupp Gmbh | Verfahren zur UEberwachung und Steuerung des Reaktionsablaufes bei Sauerstoffaufblaseverfahren |
BE787679A (fr) * | 1971-08-18 | 1973-02-19 | Allegheny Ludlum Ind Inc | Procede et appareil pour determiner la profondeur de lances d'injectionet analoqgues immergees |
JPS5252108A (en) * | 1975-10-24 | 1977-04-26 | Nippon Steel Corp | Pocess for efining by converter |
LU81512A1 (fr) | 1979-07-16 | 1981-02-03 | Arbed | Procede et dispositif pour la mesure du niveau de la scorie dans un recipient metallurgique et pour l'appreciation de son etat physique |
JPS56127718A (en) * | 1980-03-11 | 1981-10-06 | Kawasaki Steel Corp | Slopping prediction method in converter |
JPS6372811A (ja) * | 1986-09-16 | 1988-04-02 | Nkk Corp | スロツピング防止方法 |
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- 2014-03-25 CA CA2907867A patent/CA2907867C/en active Active
- 2014-03-25 US US14/779,615 patent/US20160054282A1/en not_active Abandoned
- 2014-03-25 JP JP2016503491A patent/JP6620362B2/ja active Active
- 2014-03-25 KR KR1020157027677A patent/KR102197211B1/ko active IP Right Grant
- 2014-03-25 EP EP14723670.7A patent/EP2978864B1/de active Active
- 2014-03-25 WO PCT/AT2014/050074 patent/WO2014153585A2/de active Application Filing
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2017
- 2017-06-05 US US15/613,417 patent/US10126286B2/en active Active
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Also Published As
Publication number | Publication date |
---|---|
CN105247079A (zh) | 2016-01-13 |
CA2907867C (en) | 2023-03-14 |
AT514132B1 (de) | 2015-11-15 |
JP6620362B2 (ja) | 2019-12-18 |
WO2014153585A3 (de) | 2014-12-04 |
CN105247079B (zh) | 2019-07-09 |
WO2014153585A2 (de) | 2014-10-02 |
AT514132A1 (de) | 2014-10-15 |
US10126286B2 (en) | 2018-11-13 |
JP2016514769A (ja) | 2016-05-23 |
KR102197211B1 (ko) | 2021-01-04 |
CA2907867A1 (en) | 2014-10-02 |
US20170269050A1 (en) | 2017-09-21 |
EP2978864B1 (de) | 2018-10-17 |
EP2978864A2 (de) | 2016-02-03 |
KR20160010410A (ko) | 2016-01-27 |
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