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公开(公告)号：US07625455B2
公开(公告)日：2009-12-01
申请号：US10504673
申请日：2003-02-17
申请人： Carl-Lennart Axelsson , Tomas Ekman , Ola Ritzén
发明人： Carl-Lennart Axelsson , Tomas Ekman , Ola Ritzén
IPC分类号： C21D1/08
CPC分类号： C21D6/002 , C21D1/52 , C21D9/0056
摘要： A method of heat treating stainless steel in the form of blanks, piping, tubing, strip, or wire-like material, after rolling the material, and in a heat treatment furnace at a temperature higher than about 900° C. The material is subjected to a preheating stage and a final heating stage, wherein in the preheating stage flames from burners are directed toward the surface of the material to impinge on the surface. Burners situated in the preheating stage are supplied with a fuel that burns with the aid of an oxidizing gas that contains gaseous oxygen. The material is held in the preheating stage long enough to obtain at least some degree of oxidation on the surface of the material, and the material is heated further in a following, final heating stage by burners situated in a furnace and that are supplied with a fuel and an oxidizing gas.
摘要翻译： 在坯料，管道，管材，带状或线状材料的形式，在轧制材料之后和在高于约900℃的温度的热处理炉中热处理不锈钢的方法。 到预热阶段和最终加热阶段，其中在预热阶段，来自燃烧器的火焰被引导到材料的表面以撞击在表面上。 位于预热阶段的燃烧器被供给燃料，借助于含有气态氧气的氧化气体燃烧。 材料被保持在预热阶段足够长的时间以至于在材料的表面上获得至少一定程度的氧化，并且材料在随后的最终加热阶段通过位于炉中的燃烧器进一步加热，并且被供给 燃料和氧化气体。
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公开(公告)号：US20050115648A1
公开(公告)日：2005-06-02
申请号：US10504673
申请日：2003-02-17
申请人： Carl-Lennart Axelsson , Tomas Ekman , Ola Ritzen
发明人： Carl-Lennart Axelsson , Tomas Ekman , Ola Ritzen
CPC分类号： C21D6/002 , C21D1/52 , C21D9/0056
摘要： A method of heat treating stainless steel in the form of blanks, piping, tubing, strip, or wire-like material, after rolling the material, and in a heat treatment furnace at a temperature higher than about 900° C. The material is subjected to a preheating stage and a final heating stage, wherein in the preheating stage flames from burners are directed toward the surface of the material to impinge on the surface. Burners situated in the preheating stage are supplied with a fuel that burns with the aid of an oxidizing gas that contains gaseous oxygen. The material is held in the preheating stage long enough to obtain at least some degree of oxidation on the surface of the material, and the material is heated further in a following, final heating stage by burners situated in a furnace and that are supplied with a fuel and an oxidizing gas.
摘要翻译： 在坯料，管道，管材，带状或线状材料的形式，在轧制材料之后和在高于约900℃的温度的热处理炉中热处理不锈钢的方法。 到预热阶段和最终加热阶段，其中在预热阶段，来自燃烧器的火焰被引导到材料的表面以撞击在表面上。 位于预热阶段的燃烧器被供给燃料，借助于含有气态氧气的氧化气体燃烧。 材料被保持在预热阶段足够长的时间以至于在材料的表面上获得至少一定程度的氧化，并且材料在随后的最终加热阶段通过位于炉中的燃烧器进一步加热，并且被供给 燃料和氧化气体。
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公开(公告)号：US08277720B2
公开(公告)日：2012-10-02
申请号：US12677905
申请日：2008-09-12
IPC分类号： C21D1/00
摘要： Device for heating metal material includes an elongated DFI burner arranged to be driven with gaseous oxidant and gaseous fuel and to be displaceable and longitudinally arranged with respect to the metal material. The burner includes longitudinal tubular vessels for fuel and for oxidant, arranged in parallel to one another and relative to the surface of the metal material. Each of these vessels has an opening through which the fuel and oxidant flow out and then converge in an ignition zone outside the respective vessels, where a flame is generated. Supply devices are arranged via a regulator to keep the pressure constant throughout the respective vessel during operation. Each of the vessels has a longitudinally displaceable piston for controlling the longitudinal extension of the flame in the longitudinal direction of the vessels.
摘要翻译： 用于加热金属材料的装置包括细长的DFI燃烧器，其布置成由气态氧化剂和气体燃料驱动，并且相对于金属材料可位移和纵向布置。 燃烧器包括用于燃料和氧化剂的纵向管状容器，其彼此平行且相对于金属材料的表面布置。 这些容器中的每一个都具有一个开口，燃料和氧化剂通过该开口流出，然后在各个容器内的点火区域中会聚，在那里产生火焰。 供应装置经由调节器布置以在运行期间在整个相应容器中保持压力恒定。 每个容器具有可纵向移动的活塞，用于控制火焰在容器的纵向方向上的纵向延伸。
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公开(公告)号：US20110187031A1
公开(公告)日：2011-08-04
申请号：US12677905
申请日：2008-09-12
摘要： Device for heating a metal material, includes an elongated DFI burner device, arranged to be driven with gaseous oxidant and gaseous fuel and to be displaceable and longitudinally arranged with respect to the metal material. The device has supply devices for fuel and oxidant. The burner device includes longitudinal, tubular vessels for fuel and for oxidant, arranged in parallel to one another and relative to the surface of the metal material. Each vessel has one or more openings arranged along the vessel, through which the fuel and oxidant are arranged to flow out and then converge in an ignition zone outside the respective vessels, where a flame is generated. The respective supply devices are arranged via a regulator to keep the pressure constant throughout the vessel in question during operation. Each vessel has a longitudinally displaceable piston for controlling the longitudinal extension of the flame in the longitudinal direction of the vessels.
摘要翻译： 用于加热金属材料的装置包括细长的DFI燃烧器装置，其被布置成由气态氧化剂和气体燃料驱动，并且相对于金属材料可位移和纵向布置。 该装置具有用于燃料和氧化剂的供应装置。 燃烧器装置包括用于燃料和氧化剂的纵向管状容器，其彼此平行且相对于金属材料的表面布置。 每个容器具有沿着容器布置的一个或多个开口，燃料和氧化剂布置成通过该开口流出并随后会聚在产生火焰的相应容器之外的点火区域中。 相应的供应装置经由调节器布置以在运行期间保持整个容器中的压力恒定。 每个容器具有可纵向移动的活塞，用于控制火焰在容器的纵向方向上的纵向延伸。
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公开(公告)号：US5783000A
公开(公告)日：1998-07-21
申请号：US700438
申请日：1996-09-06
申请人： Carl-Lennart Axelsson , Sten Ljungars , Lars Folke Saltin , Sven-Eric Lunner , Sten-.ANG.ke Brannvall
发明人： Carl-Lennart Axelsson , Sten Ljungars , Lars Folke Saltin , Sven-Eric Lunner , Sten-.ANG.ke Brannvall
摘要： A method for heat-treating steel, primarily strip-like or rod-like steel material, such as steel strip, steel sheet, steel rod or steel wire which have been rolled and heated in an oven or furnace to a surface temperature above about 900 degrees C. and thereafter cooled and optionally treated in an electrolyte bath and/or acid bath. The oven burners are fired with a liquid or a gaseous fuel which is burned with the aid of a gas that contains at least 85 percent by volume oxygen and at most 10 percent by volume nitrogen.
摘要翻译： PCT No.PCT / SE95 / 00243 Sec。 371日期1996年9月6日 102（e）1996年9月6日PCT PCT 1995年3月7日PCT公布。 公开号WO95 / 24509 日期1995年9月14日一种用于热处理钢，主要是在炉或炉中轧制和加热的钢带，钢板，钢棒或钢丝的条状或棒状钢材料的方法， 表面温度高于约900℃，然后冷却并任选地在电解液浴和/或酸浴中处理。 烘箱燃烧器用液体或气体燃料燃烧，该燃料借助于含有至少85体积％氧气和至多10体积％氮气的气体燃烧。
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公开(公告)号：US4591381A
公开(公告)日：1986-05-27
申请号：US676198
申请日：1984-10-24
CPC分类号： C21B13/143 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/136
摘要： A process for producing pig iron from iron ore concentrate, in a reactor vessel into which iron ore concentrate, coal, oxygen gas and slag formers are injected beneath the surface of a molten iron bath. According to the invention, the ratio CO.sub.2 /CO in the waste gas (11) from the reactor (2) is increased to a value higher than corresponding to the condition of equilibrium at atmospheric pressure. As a result greater heat is generated in the bath for a specific coal amount. The injected amount of coal in relation to injected amount of concentrate is predetermined for finally reducing pre-reduced iron ore concentrate (4) in the reactor (2). According to the invention, CO and H.sub.2 in the exhaust gas is passed to a pre-reduction step (1), where unreduced iron ore concentrate is pre-reduced and thereafter can be injected into the reactor.According to a preferred embodiment, the reactor (2) is pressurized to cause the CO.sub.2 /CO ratio to increase.
摘要翻译： PCT No.PCT / SE84 / 00067 Sec。 371日期1984年10月24日第 102（e）日期1984年10月24日PCT提交1984年2月24日PCT公布。 第WO84 / 03521号公报 日期：1984年9月13日。在铁矿石浓缩物生产生铁的方法中，铁矿精矿，煤，氧气和成矿物在其中的铁水池表面下方注入。 根据本发明，来自反应器（2）的废气（11）中的CO 2 / CO比例增加到高于大气压下的平衡状态的值。 因此，在浴中产生特定煤量的更大的热量。 煤的注入量相对于浓缩物的注入量是预先确定的，以最终还原反应器（2）中的还原铁精矿（4）。 根据本发明，废气中的CO和H 2被传送到预还原步骤（1），其中未还原的铁精矿被预先还原，然后可以被注入到反应器中。 根据优选实施方案，反应器（2）被加压以使CO 2 / CO比率增加。
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公开(公告)号：US4511372A
公开(公告)日：1985-04-16
申请号：US574665
申请日：1984-01-27
CPC分类号： C10J3/57 , C10J3/74 , C10J3/78 , C21B13/0026 , C10J2300/092 , C10J2300/093 , C10J2300/0946 , C10J2300/0959 , C10J2300/0996 , Y02P10/136
摘要： A method of gasifying carbon (C) in the form of coal, hydrocarbons and/or hydrocarbon compounds, comprising the steps of into a reactor vessel holding a molten iron bath to inject carbon, oxygen and iron oxides beneath the surface of the molten iron bath, where the iron oxides constitute a coolant and where carbon is injected in a stoichiometric excess relative to oxygen included in the bath in the form of oxides, and where the molten iron bath has such a carbon content that it solves-in carbon. According to the invention, the reactor vessel is caused to have an inner total pressure of 2 to 50 bar, preferably 4 to 10 bar.Hereby the gas production and the production of pig iron increase. Furthermore, the dust formation and the lining wear are reduced substantially.
摘要翻译： 一种气化碳，碳氢化合物和/或烃化合物形式的碳（C）的方法，包括以下步骤：将容纳铁水浴的反应器容器注入到铁水浴表面下方的碳，氧和氧化铁 ，其中铁氧化物构成冷却剂，并且其中以相对于氧化物形式的浴中包含的氧化学计量过量的碳注入碳，并且其中铁水浴具有其在碳中解析的碳含量。 根据本发明，反应器容器的内部总压力为2至50巴，优选为4至10巴。 因此，天然气生产和生铁生产增加。 此外，粉尘形成和衬里磨损显着降低。
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