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公开(公告)号：US07223978B2
公开(公告)日：2007-05-29
申请号：US10568698
申请日：2004-08-31
IPC分类号： G01N1/22
CPC分类号： G01N21/39 , G01N21/3504 , G01N21/359
摘要： The invention relates to a method for measuring the quantity of chemical species contained in a high-temperature gas, and especially the quantity of CO and/or CO2 contained in a gas emitted from a metal treating furnace, especially a light-arc furnace (EAF) or a converter (BOF). According to the invention, part of the gas to be analysed is extracted, the temperature of said gas is reduced to at least 300° C., preferably to a temperature that is lower than or equal to 200° C., in such a way as to obtain a at a temperature between 300° C., preferably 200° C., and the ambient temperature, and at least the quantity of CO and/or CO2 said gas is then measured by means of the coherent light signal which is emitted by a laser diode through the gas and is retrieved on emergence from the gas.
摘要翻译： 本发明涉及一种用于测量包含在高温气体中的化学物质量的方法，尤其涉及从金属处理炉排出的气体中所含的CO和/或CO 2的量， 特别是电弧炉（EAF）或转炉（BOF）。 根据本发明，提取待分析气体的一部分，将所述气体的温度降低至至少300℃，优选降低到等于或等于200℃的温度，以这种方式 在300℃，优选200℃的温度和环境温度之间获得，并且至少所述气体的CO和/或CO 2 2的量随后通过手段 由激光二极管通过气体发射的相干光信号，并且在从气体出现时被检索。
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公开(公告)号：US20060202123A1
公开(公告)日：2006-09-14
申请号：US10568698
申请日：2004-08-31
IPC分类号： G01N21/35
CPC分类号： G01N21/39 , G01N21/3504 , G01N21/359
摘要： The invention relates to a method for measuring the quantity of chemical species contained in a high-temperature gas, and especially the quantity of CO and/or CO2 contained in a gas emitted from a metal treating furnace, especially a light-arc furnace (EAF) or a converter (BOF). According to the invention, part of the gas to be analysed is extracted, the temperature of said gas is reduced to at least 300° C., preferably to a temperature that is lower than or equal to 200° C., in such a way as to obtain a gas at a temperature between 300° C., preferably 200° C., and the ambient temperature, and at least the quantity of CO and/or CO2 in said gas is then measured by means of the coherent light signal which is emitted by a laser diode through the gas and is retrieved on emergence from the gas.
摘要翻译： 本发明涉及一种用于测量包含在高温气体中的化学物质量的方法，尤其涉及从金属处理炉排出的气体中所含的CO和/或CO 2的量， 特别是电弧炉（EAF）或转炉（BOF）。 根据本发明，提取待分析气体的一部分，将所述气体的温度降低至至少300℃，优选降低到等于或等于200℃的温度，以这种方式 为了获得在300℃，优选200℃的温度和环境温度之间的气体，并且至少测量所述气体中的CO和/或CO 2 2的量 通过由激光二极管通过气体发射的相干光信号，并且在气体出现时被检索。
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公开(公告)号：US06514310B2
公开(公告)日：2003-02-04
申请号：US09912533
申请日：2001-07-26
申请人： Bruno Allemand , Christel Champinot , Stéphane Melen , Jean-Claude Vuillermoz , Sabastien Flichy , Jacky Laurent
发明人： Bruno Allemand , Christel Champinot , Stéphane Melen , Jean-Claude Vuillermoz , Sabastien Flichy , Jacky Laurent
IPC分类号： C21C7072
CPC分类号： C21C5/5217 , C21C5/4606 , Y02P10/143 , Y02P10/216
摘要： The electric arc furnace is equipped with a supersonic injector comprising a so-called Laval nozzle arranged at a certain distance above the bath. The dimensions of the nozzle are calculated as a function of the desired flow rate of oxygen and the desired velocity of the jet, and the pressure of the oxygen at the intake of the nozzle is such that the static pressure of the jet at the exit of the injector is substantially equal to the pressure of the surrounding atmosphere. Preferably, the injector comprises an annular channel for injection of natural gas, and can be used in burner mode at the start of the melting of scrap iron. The velocity of the oxygen is then subsonic.
摘要翻译： 电弧炉配备有超音速喷射器，其包括布置在浴上方一定距离处的所谓拉瓦尔喷嘴。 喷嘴的尺寸根据期望的氧气流速和喷射的期望速度计算，并且喷嘴入口处的氧气的压力使得喷嘴出口处的喷嘴的静压力 喷射器基本上等于周围大气的压力。 优选地，喷射器包括用于喷射天然气的环形通道，并且可以在废铁熔化开始时以燃烧器模式使用。 然后氧气的速度是亚音速。
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公开(公告)号：US20070034054A1
公开(公告)日：2007-02-15
申请号：US10555313
申请日：2004-03-30
IPC分类号： C22B21/00
CPC分类号： F27B3/28 , C22B21/0084 , C22B21/0092 , F27D19/00 , F27D2019/0006 , F27D2019/0034 , Y02P10/218
摘要： Methods for treating aluminum in a furnace. An aluminum charge is introduced into a furnace and melted with heat from at least one burner. The burner is supplied with at least one oxidizer and at least one fuel. The oxidizer is made up of at least 10% oxygen by volume. The concentration of a first gas is measured in the furnace atmosphere or in a flue gas exiting the furnace. The oxidation of the molten aluminum is then reduced by holding the flow rate of the oxidizer steady while varying the flow rate of the fuel, according to the concentration of a second gas in the furnace or in the flue gas exiting the furnace. The concentration of the second gas is determined by comparing the measured species concentration and the intrinsic concentration which would be present absent the aluminum charge.
摘要翻译： 在炉中处理铝的方法 将铝电荷引入炉中并用至少一个燃烧器的热量熔化。 燃烧器配备有至少一种氧化剂和至少一种燃料。 氧化剂由至少10体积％的氧气组成。 第一气体的浓度在炉气氛或离开炉的烟道气中测量。 然后，根据炉子内的第二气体或离开炉子的烟道气的浓度，通过保持氧化剂的流量稳定地改变燃料的流量，从而减少熔融铝的氧化。 第二气体的浓度通过比较测量的物质浓度和不存在铝电荷时将存在的固有浓度来确定。
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公开(公告)号：US07648558B2
公开(公告)日：2010-01-19
申请号：US10555313
申请日：2004-03-30
IPC分类号： C22B21/00
CPC分类号： F27B3/28 , C22B21/0084 , C22B21/0092 , F27D19/00 , F27D2019/0006 , F27D2019/0034 , Y02P10/218
摘要： Methods for treating aluminum in a furnace. An aluminum charge is introduced into a furnace and melted with heat from at least one burner. The burner is supplied with at least one oxidizer and at least one fuel. The oxidizer is made up of at least 10% oxygen by volume. The concentration of a first gas is measured in the furnace atmosphere or in a flue gas exiting the furnace. The oxidation of the molten aluminum is then reduced by holding the flow rate of the oxidizer steady while varying the flow rate of the fuel, according to the concentration of a second gas in the furnace or in the flue gas exiting the furnace. The concentration of the second gas is determined by comparing the measured species concentration and the intrinsic concentration which would be present absent the aluminum charge.
摘要翻译： 在炉中处理铝的方法 将铝电荷引入炉中并用来自至少一个燃烧器的热量熔化。 燃烧器配备有至少一种氧化剂和至少一种燃料。 氧化剂由至少10体积％的氧气组成。 第一气体的浓度在炉气氛或离开炉的烟道气中测量。 然后，根据炉子内的第二气体或离开炉子的烟道气的浓度，通过保持氧化剂的流量稳定地改变燃料的流量，从而减少熔融铝的氧化。 第二气体的浓度通过比较测量的物质浓度和不存在铝电荷时将存在的固有浓度来确定。
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6.发明授权公开(公告)号：US06229838B1
公开(公告)日：2001-05-08
申请号：US09560895
申请日：2000-04-28
IPC分类号： H05B718
CPC分类号： C21C5/5217 , C21C5/4606 , F27B3/205 , F27B3/225 , Y02P10/216
摘要： An electric arc furnace is provided for the production of steel by melting metal between electrodes. The electric arc furnace comprises gas injectors provided with respective cooling chambers placed in a wall of the furnace, wherein at least one single chamber is associated with at least two injectors in order to cool each injector. Each injector is angled in a manner appropriate with respect to a corresponding gas injected thereby and to a corresponding function thereof, wherein the orientation axes of the injectors are not parallel.
摘要翻译： 提供电弧炉，用于通过在电极之间熔化金属来生产钢。 电弧炉包括设置有放置在炉壁中的相应冷却室的气体喷射器，其中至少一个单室与至少两个喷射器相关联，以便冷却每个喷射器。 每个喷射器以相对于其注射的对应气体适当的方式成角度，并且其对应的功能，其中喷射器的取向轴不平行。
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7.发明授权Tubular rod and device for sampling and analyzing fumes and apparatus including such device 失效管状杆和用于取样和分析烟雾的装置和包括这种装置的装置
公开(公告)号：US5344122A
公开(公告)日：1994-09-06
申请号：US930381
申请日：1992-09-08
CPC分类号： C21C5/5217 , F27D17/003 , F27D17/008 , F27D21/00 , F27D9/00 , G01N1/2258 , G01N2001/2282 , Y02P10/216
摘要： The tubular rod (7) for sampling, mounted in a duct for the evacuation of fumes for example from a heat treatment or a melting furnace, includes an extractor tube (8) extending in a closed sleeve (9) comprising an inlet (11) and an outlet (12) of cooling fluid, the extractor tube having an end part opening outside the sleeve by means of an opening (10) for sampling fumes and a connecting part (14) extending outside the sleeve for connection to a circuit of analysis including a suction pump. The opening (10) is advantageously directed in counter-current with respect to the direction of circulation (F) of the fumes (11). Application such as for process control in an electrical furnace for the production of steel with injection of oxygenated gas.
摘要翻译： PCT No.PCT / FR91 / 01084第 371日期：1992年9月8日 102（e）日期1992年9月8日PCT 1991年12月31日PCT公布。 出版物WO92 / 13108 日期为1992年8月6日。用于取样的管状杆（7）安装在用于例如从热处理或熔化炉排出烟气的管道中，包括在封闭的套筒（9）中延伸的抽出管（8） ）包括冷却流体的入口（11）和出口（12），所述提取管具有通过用于取样烟雾的开口（10）在所述套筒外部开口的端部，以及延伸到所述套筒外部的连接部分（14） 用于连接到包括抽吸泵的分析电路。 开口（10）有利地相对于烟气（11）的循环方向（F）指向逆流。 用于电炉中的过程控制的应用，用于生产注入含氧气体的钢。
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