-
公开(公告)号：US20080000325A1
公开(公告)日：2008-01-03
申请号：US11476039
申请日：2006-06-28
申请人： William John Mahoney , Michael Francis Riley , Adrian Christian Deneys , Gary Thomas Vardian , Stephen A. Manley
发明人： William John Mahoney , Michael Francis Riley , Adrian Christian Deneys , Gary Thomas Vardian , Stephen A. Manley
IPC分类号： C21C5/30
CPC分类号： F23D14/22 , C21C5/4606 , C21C5/5217 , F23D14/32 , F23D14/48 , F27D1/16 , Y02P10/216
摘要： A method of injecting oxygen into a melt located within a metallurgical furnace having a heated furnace atmosphere in which oxygen and fuel is injected into 1 or more nozzles having passageways of converging-diverging configuration under choked flow conditions to produce supersonic jet or jets discharged from the passageways. Fuel is injected into internal circumferential locations of the passageways so as to impart a structure to the jets being discharged that have an outer circumferential region containing a mixture of fuel and oxygen and a central region containing essentially oxygen. Such a structured jet upon discharge interacts with the furnace atmosphere to create an outer shear-mixing zone in which the outer circumferential layer mixes with the heated furnace atmosphere and auto-ignites to produce a flame envelope surrounding a supersonic jet of oxygen. The jet of oxygen and flame envelope can be directed against a melt contained within the metallurgical furnace for injection of oxygen into the melt.
-
公开(公告)号：US07452401B2
公开(公告)日：2008-11-18
申请号：US11476039
申请日：2006-06-28
申请人： William John Mahoney , Michael Francis Riley , Adrian Christian Deneys , Gary Thomas Vardian , Stephen A. Manley
发明人： William John Mahoney , Michael Francis Riley , Adrian Christian Deneys , Gary Thomas Vardian , Stephen A. Manley
CPC分类号： F23D14/22 , C21C5/4606 , C21C5/5217 , F23D14/32 , F23D14/48 , F27D1/16 , Y02P10/216
摘要： A method of injecting oxygen into a melt located within a metallurgical furnace having a heated furnace atmosphere in which oxygen and fuel is injected into 1 or more nozzles having passageways of converging-diverging configuration under choked flow conditions to produce supersonic jet or jets discharged from the passageways. Fuel is injected into internal circumferential locations of the passageways so as to impart a structure to the jets being discharged that have an outer circumferential region containing a mixture of fuel and oxygen and a central region containing essentially oxygen. Such a structured jet upon discharge interacts with the furnace atmosphere to create an outer shear-mixing zone in which the outer circumferential layer mixes with the heated furnace atmosphere and auto-ignites to produce a flame envelope surrounding a supersonic jet of oxygen. The jet of oxygen and flame envelope can be directed against a melt contained within the metallurgical furnace for injection of oxygen into the melt.
摘要翻译： 将氧气注入位于具有加热炉气氛的冶金炉内的熔体中的方法，其中将氧气和燃料注入到具有在扼流流动条件下具有会聚 - 分叉形状的通道的1个或更多个喷嘴中以产生超音速喷射或从 通道。 将燃料喷射到通道的内部圆周位置，以便给出排出的具有包含燃料和氧气的混合物的外周区域和基本上含有氧的中心区域的结构。 放电时的这种结构化射流与炉内气氛相互作用以形成外部剪切混合区域，其中外圆周层与加热的炉子气氛混合并自动点火以产生围绕超音速喷射氧气的火焰包络线。 氧气和火焰包层的射流可以针对包含在冶金炉内的熔体用于将氧气注入到熔体中。
-
公开(公告)号：US20090325110A1
公开(公告)日：2009-12-31
申请号：US12490652
申请日：2009-06-24
申请人： William John Mahoney , Bryan R. Bielec , Gary Thomas Vardian , Adrian Christian Deneys , Michael Francis Riley , William Eric Slye
发明人： William John Mahoney , Bryan R. Bielec , Gary Thomas Vardian , Adrian Christian Deneys , Michael Francis Riley , William Eric Slye
CPC分类号： F23D14/22 , F23D14/32 , F23D2700/026 , F23D2900/00006 , F23Q13/00
摘要： A stream of hot oxygen is formed by providing a duct and a fuel lance movable axially within the duct, flowing gaseous fuel out of the lance into the duct, mixing it in the duct with gaseous oxidant, flowing the mixture out of the duct into an atmosphere which is hot enough that it ignites the mixture without aid of an ignition source other than said atmosphere, and combusting said mixture in a flame that does not extend into said duct; then moving the lance so its fuel outlet approaches the duct exit orifice so that the base of said flame moves inside said duct to the fuel outlet; and then moving the lance to draw the fuel outlet and the flame attached thereto away from the exit orifice into the duct; and increasing the flow rate of gaseous oxidant in said duct, so that combustion of fuel within the duct heats uncombusted oxygen which emerges as a stream of hot oxidant.
摘要翻译： 通过提供在管道内轴向移动的管道和燃料喷枪来形成热氧流，将气体燃料从喷枪流出到管道中，将其与气体氧化剂混合在管道中，使混合物从管道流出到 足够高的气氛，使得在没有辅助除了所述气氛之外的点火源的情况下点燃混合物，并且在不延伸到所述管道中的火焰中燃烧所述混合物; 然后移动喷枪使其燃料出口接近管道出口孔，使得所述火焰的底部在所述管道内移动到燃料出口; 然后移动喷枪以将燃料出口和附接到其上的火焰从出口喷射到管道中; 并且增加所述管道中的气态氧化剂的流速，使得管道内燃料的燃烧加热作为热氧化剂流出现的未燃氧。
-
公开(公告)号：US08105074B2
公开(公告)日：2012-01-31
申请号：US12490652
申请日：2009-06-24
申请人： William John Mahoney , Bryan R. Bielec , Gary Thomas Vardian , Adrian Christian Deneys , Michael Francis Riley , William Eric Slye
发明人： William John Mahoney , Bryan R. Bielec , Gary Thomas Vardian , Adrian Christian Deneys , Michael Francis Riley , William Eric Slye
IPC分类号： F23D11/44
CPC分类号： F23D14/22 , F23D14/32 , F23D2700/026 , F23D2900/00006 , F23Q13/00
摘要： A stream of hot oxygen is formed by providing a duct and a fuel lance movable axially within the duct, flowing gaseous fuel out of the lance into the duct, mixing it in the duct with gaseous oxidant, flowing the mixture out of the duct into an atmosphere which is hot enough that it ignites the mixture without aid of an ignition source other than said atmosphere, and combusting said mixture in a flame that does not extend into said duct; then moving the lance so its fuel outlet approaches the duct exit orifice so that the base of said flame moves inside said duct to the fuel outlet; and then moving the lance to draw the fuel outlet and the flame attached thereto away from the exit orifice into the duct; and increasing the flow rate of gaseous oxidant in said duct, so that combustion of fuel within the duct heats uncombusted oxygen which emerges as a stream of hot oxidant.
摘要翻译： 通过提供在管道内轴向移动的管道和燃料喷枪来形成热氧流，将气体燃料从喷枪流出到管道中，将其与气体氧化剂混合在管道中，使混合物从管道流出到 足够高的气氛，使得在没有辅助除了所述气氛之外的点火源的情况下点燃混合物，并且在不延伸到所述管道中的火焰中燃烧所述混合物; 然后移动喷枪使其燃料出口接近管道出口孔，使得所述火焰的底部在所述管道内移动到燃料出口; 然后移动喷枪以将燃料出口和附接到其上的火焰从出口喷射到管道中; 并且增加所述管道中的气态氧化剂的流速，使得管道内燃料的燃烧加热作为热氧化剂流出现的未燃氧。
-
公开(公告)号：US06932854B2
公开(公告)日：2005-08-23
申请号：US10762298
申请日：2004-01-23
CPC分类号： C21C7/068 , C21C5/4606 , C21C5/5217 , C21C2300/02 , Y02P10/216
摘要： A method for producing low carbon steel wherein molten steel is decarburized in a three stage refining procedure comprising a first stage wherein oxygen is provided for decarburization enveloped in a gas shroud, a second stage wherein oxygen is provided for decarburization enveloped in a flame shroud, and a third stage wherein inert gas or oxygen and inert gas is provided enveloped in a flame shroud.
摘要翻译： 一种生产低碳钢的方法，其中钢水在三阶段精炼过程中脱碳，包括第一阶段，其中提供用于脱气包围在气体护罩中的氧气，第二阶段，其中提供氧气以封闭在火焰罩中的脱碳，以及 其中惰性气体或氧气和惰性气体被包围在火焰罩中的第三阶段。
-
公开(公告)号：US06206949B1
公开(公告)日：2001-03-27
申请号：US09573177
申请日：2000-05-19
IPC分类号： C21B500
CPC分类号： F23C9/06 , C21B5/001 , F23C9/006 , F23C2900/99004 , F27D17/008
摘要： A method for reducing the NOx content of combustion gases from combustion in a commercial furnace wherein hot oxygen and carbonaceous fuel such as pulverized coal react to form a fuel-rich gas phase mixture which is then used to reduce NOx to nitrogen gas.
摘要翻译： 一种用于在商业炉中降低来自燃烧的燃烧气体的NOx含量的方法，其中热氧气和碳质燃料如粉煤反应形成富燃料气相混合物，然后将其用于将NOx还原成氮气。
-
公开(公告)号：US6090182A
公开(公告)日：2000-07-18
申请号：US959841
申请日：1997-10-29
CPC分类号： C21B5/001 , F27D17/008 , Y02P10/34
摘要： A method for providing a blast stream into a blast furnace wherein fuel and hot oxygen are provided into the blast air, the hot oxygen being at a temperature and velocity each greater than that of the blast air, and wherein the fuel and hot oxygen begin to combust prior to passage into the blast furnace in the blast stream.
摘要翻译： 一种用于将鼓风流提供到高炉中的方法，其中将燃料和热氧提供到鼓风空气中，热氧气的温度和速度大于鼓风空气的温度和速度，并且其中燃料和热氧气开始 在爆炸流中进入高炉之前燃烧。
-
公开(公告)号：US6007326A
公开(公告)日：1999-12-28
申请号：US905344
申请日：1997-08-04
申请人： Harry Monroe Ryan, III , Arthur Wellington Francis, Jr. , Michael Francis Riley , Hisashi Kobayashi
发明人： Harry Monroe Ryan, III , Arthur Wellington Francis, Jr. , Michael Francis Riley , Hisashi Kobayashi
CPC分类号： F23C9/006 , F23C7/02 , F23L7/00 , F23C2900/09002 , F23C2900/99001 , Y02E20/342
摘要： A low NO.sub.x combustion process is carried out by reacting low concentrations of combustibles with low concentrations of oxygen. These low concentrations are obtained by injecting high velocity fuel and oxidant streams through port openings that are spatially separated.
摘要翻译： 通过使低浓度的可燃物与低浓度的氧气反应来进行低NOx燃烧过程。 这些低浓度是通过将高速燃料和氧化剂流注入通过空间分离的端口开口获得的。
-
9.发明授权
公开(公告)号：US5674309A
公开(公告)日：1997-10-07
申请号：US531675
申请日：1995-09-21
CPC分类号： C21C7/072 , B22D11/11 , C21D1/74 , F27D99/0075
摘要： A method and apparatus for purging air from the interior of a container in which purge gas is supplied to the interior of the container from one or more injectors in a turbulent jet flow having a modified Reynolds number Re' of less than 14,000 and the purge gas is supplied at a flow rate to produce a positive pressure within the container of at least 2.times.10.sup.-8 atm above the ambient pressure.
摘要翻译： 一种用于从容器内部吹扫空气的方法和装置，其中吹扫气从一个或多个注射器在具有小于14,000的改进的雷诺数Re'的湍流喷射流中供应到容器的内部，并且吹扫气体 以流速供应以在容器内产生高于环境压力的至少2×10-8atm的正压。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.024 秒)
