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公开(公告)号：US11598522B2
公开(公告)日：2023-03-07
申请号：US17066733
申请日：2020-10-09
发明人： Russell James Hewertson , Shailesh Pradeep Gangoli , J. Bruce Kenworthy , Xiaoyi He , Anup Vasant Sane
摘要： A method of melting a charge in a double-pass tilt rotary furnace having a door, including operating a first burner at a first firing rate, the first burner being mounted in a lower portion of the door and producing a first flame having a length; operating a second burner at a second firing rate, the second burner being mounted in an upper portion of the door and producing a second flame having a length, the second flame being distal from the charge relative to the first flame; in an initial phase when the solids in the charge impede the first flame, controlling the second firing rate to be greater than the first firing rate; and in an later phase after melting of the solids in the charge sufficiently that the first flame is not impeded, controlling the first firing rate to be greater than the second firing rate.
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公开(公告)号：US20190218631A1
公开(公告)日：2019-07-18
申请号：US15873616
申请日：2018-01-17
发明人： Gregory J. Buragino , Shailesh Pradeep Gangoli , Anshu Gupta , Anup Vasant Sane , Avishek Guha , Xiaoyi He , Michael David Buzinski , Kyle J. Niemkiewicz , Russell James Hewertson
摘要： A method of operating a BOF bottom stir tuyere having an inner nozzle surrounded by an annular nozzle, including during a hot metal pour phase and a blow phase, flowing an inert gas through both nozzles; during a tap phase, initiating a flow of a first reactant through the inner nozzle and a flow of a second reactant through the annular nozzle, and ceasing the flow of inert gas through the nozzles, wherein the first and second reactants includes fuel and oxidant, respectively, or vice-versa, such that a flame forms as the fuel and oxidant exit the tuyere; during a slag splash phase, continuing the flows of fuel and oxidant to maintain the flame; and after ending the slag splash phase and commencement of another hot metal pour phase, initiating a flow of inert gas through both nozzles and ceasing the flows of the first and second reactants.
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公开(公告)号：US20170114430A1
公开(公告)日：2017-04-27
申请号：US15317684
申请日：2015-10-09
发明人： Shailesh Pradeep Gangoli , Reed Jacob Hendershot , Anup Vasant Sane , Michael J. Gallagher , Aleksandar Georgi Slavejkov
CPC分类号： C22B15/0095 , C22B7/003 , C22B9/16 , C22B15/00 , C22B15/0026 , C22B15/006 , F27D21/0014 , Y02P10/212
摘要： A method and system of controlling a melting process of copper in a copper melting furnace including measuring at least one furnace parameter, wherein the at least one furnace parameter includes one or both of a furnace temperature and a furnace exhaust oxygen concentration, calculating a first rate of change of the furnace parameter over a first time period, calculating a second rate of change of the furnace parameter over a second time period at least a portion of which occurs after the first time period, comparing the first rate of change with the second rate of change, and indicating substantial completion of a process phase in the furnace when the second rate of change deviates by a predetermined threshold percentage from the first rate of change.
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公开(公告)号：US09134025B2
公开(公告)日：2015-09-15
申请号：US13690492
申请日：2012-11-30
CPC分类号： F23D14/58 , F23D14/22 , F23D14/32 , F23D14/583 , Y02E20/344
摘要： A burner having a high shape factor nozzle including a nozzle opening having a shape factor from about 10 to about 75, the shape factor being defined as the square of the nozzle perimeter divided by twice the nozzle cross-sectional area, and an annular nozzle surrounding the high shape factor nozzle, wherein the high shape factor nozzle is configured to be supplied with one of a fuel gas and an oxidizer gas, and the annular nozzle is configured to be supplied with the other of a fuel gas and an oxidizer gas. A method of rapid energy release combustion, including supplying a fuel gas and an oxidizer gas to a burner having a high shape factor nozzle and an annular nozzle surrounding the high shape factor nozzle.
摘要翻译： 一种具有高形状因子喷嘴的燃烧器，其包括具有约10至约75的形状系数的喷嘴开口，所述形状因子被定义为喷嘴周边的平方除以喷嘴横截面积的两倍，以及围绕 高形状因子喷嘴，其中高形状因子喷嘴构造成供应燃料气体和氧化剂气体中的一种，并且环形喷嘴构造成供应燃料气体和氧化剂气体中的另一种。 一种快速能量释放燃烧的方法，包括向具有高形状因子喷嘴的燃烧器和围绕高形状因子喷嘴的环形喷嘴提供燃料气体和氧化剂气体。
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公开(公告)号：US20150247673A1
公开(公告)日：2015-09-03
申请号：US14193698
申请日：2014-02-28
发明人： Anup Vasant Sane , Shailesh Pradeep Gangoli , Aleksandar Georgi Slavejkov , Michael David Buzinski , Jeffrey D. Cole , Reed Jacob Hendershot , Xiaoyi He
CPC分类号： F23D14/84 , B60B21/10 , B60B21/102 , B60B21/104 , B60B21/108 , B60B25/045 , B60B25/08 , B60B25/12 , B60B25/14 , B60B2320/10 , B60B2900/116 , B60B2900/521 , B60B2900/523 , B60B2900/541 , B60B2900/711 , B60B2900/721 , B60Y2200/14 , B60Y2200/20 , F23C5/08 , F23N1/02 , F27D19/00 , F27D99/0033 , F27D2019/004 , F27D2099/004
摘要： A transient heating burner including at least two burner elements each having a distribution nozzle configured to flow a fuel, and an annular nozzle surrounding the distribution nozzle and configured to flow an first oxidant, at least one staging nozzle configured to flow a second oxidant, and a controller programmed to independently control the fuel flow to each distribution nozzle such that at least one of the distribution nozzles is active and at least one of the distribution nozzles is passive, wherein an active distribution nozzle fuel flow is greater than an average fuel flow to the distribution nozzles and a passive nozzle fuel flow is less than the average fuel flow, and to control a staging ratio to be less than or equal to about 75%.
摘要翻译： 一种瞬时加热燃烧器，其包括至少两个燃烧器元件，每个燃烧器元件具有配置成流动燃料的分配喷嘴，以及围绕分配喷嘴的环形喷嘴，并且构造成流过第一氧化剂，至少一个配置成流过第二氧化剂的分级喷嘴， 控制器，其被编程为独立地控制到每个分配喷嘴的燃料流，使得至少一个分配喷嘴是有源的，并且至少一个分配喷嘴是无源的，其中主动分配喷嘴燃料流量大于平均燃料流量 分配喷嘴和被动喷嘴燃料流量小于平均燃料流量，并且将分级比控制在小于或等于约75％。
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公开(公告)号：US09360257B2
公开(公告)日：2016-06-07
申请号：US14193698
申请日：2014-02-28
发明人： Anup Vasant Sane , Shailesh Pradeep Gangoli , Aleksandar Georgi Slavejkov , Michael David Buzinski , Jeffrey D. Cole , Reed Jacob Hendershot , Xiaoyi He
CPC分类号： F23D14/84 , B60B21/10 , B60B21/102 , B60B21/104 , B60B21/108 , B60B25/045 , B60B25/08 , B60B25/12 , B60B25/14 , B60B2320/10 , B60B2900/116 , B60B2900/521 , B60B2900/523 , B60B2900/541 , B60B2900/711 , B60B2900/721 , B60Y2200/14 , B60Y2200/20 , F23C5/08 , F23N1/02 , F27D19/00 , F27D99/0033 , F27D2019/004 , F27D2099/004
摘要： A transient heating burner including at least two burner elements each having a distribution nozzle configured to flow a fuel, and an annular nozzle surrounding the distribution nozzle and configured to flow an first oxidant, at least one staging nozzle configured to flow a second oxidant, and a controller programmed to independently control the fuel flow to each distribution nozzle such that at least one of the distribution nozzles is active and at least one of the distribution nozzles is passive, wherein an active distribution nozzle fuel flow is greater than an average fuel flow to the distribution nozzles and a passive nozzle fuel flow is less than the average fuel flow, and to control a staging ratio to be less than or equal to about 75%.
摘要翻译： 一种瞬时加热燃烧器，其包括至少两个燃烧器元件，每个燃烧器元件具有配置成流动燃料的分配喷嘴，以及围绕分配喷嘴的环形喷嘴，并且构造成流过第一氧化剂，至少一个配置成流过第二氧化剂的分级喷嘴， 控制器，其被编程为独立地控制到每个分配喷嘴的燃料流，使得至少一个分配喷嘴是有源的，并且至少一个分配喷嘴是无源的，其中主动分配喷嘴燃料流量大于平均燃料流量 分配喷嘴和被动喷嘴燃料流量小于平均燃料流量，并且将分级比控制在小于或等于约75％。
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公开(公告)号：US09273867B2
公开(公告)日：2016-03-01
申请号：US13758231
申请日：2013-02-04
发明人： Michael David Buzinski , Shailesh Pradeep Gangoli , William Otto Litrenta , Reed Jacob Hendershot , Larry Saul Zelson
CPC分类号： F23Q3/006 , F23D2207/00
摘要： An integrated retractable burner ignition system including a burner having an outlet face and a flow passage including a front end substantially coincident with the outlet face of the burner and a gas inlet positioned rearward from the front end of the flow passage, an igniter including a high voltage electrode surrounded by an insulator and extending beyond the insulator to form a tip end of the igniter, the igniter being mounted slidably within the flow passage, an actuator connected to a rear portion of the igniter and configured to advance and retract the igniter within the flow passage, and a slidable seal between the igniter and the flow passage, the seal being positioned rearward of the gas inlet of the flow passage and frontward of the rear portion of the igniter.
摘要翻译： 一种集成的可缩回燃烧器点火系统，其包括具有出口面的燃烧器和包括与燃烧器的出口面基本一致的前端的流路和从流路的前端向后方定位的气体入口， 电压电极由绝缘体包围并延伸超过绝缘体以形成点火器的尖端，点火器可滑动地安装在流路内;致动器，其连接到点火器的后部，并且构造成在点火器的前部和后部内推进和缩回 流动通道和点火器和流动通道之间的可滑动密封，密封件位于流动通道的气体入口的后方和点火器的后部的前方。
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公开(公告)号：US20130143169A1
公开(公告)日：2013-06-06
申请号：US13690709
申请日：2012-11-30
IPC分类号： F23D14/58
CPC分类号： F23D14/58 , F23D14/22 , F23D14/32 , F23D14/583 , Y02E20/344
摘要： A burner including a central oxidant nozzle defining a central axis of the burner, and a plurality of flame holders each having an axis spaced apart from the axis of the burner, each flame holder including a high shape factor nozzle including a nozzle opening having a shape factor from about 10 to about 75, the shape factor being defined as the square of the nozzle perimeter divided by twice the nozzle cross-sectional area, and an annular nozzle surrounding the high shape factor nozzle, wherein the high shape factor nozzle is configured to be supplied with one of a fuel gas and an oxidizer gas, and the annular nozzle is configured to be supplied with the other of a fuel gas and an oxidizer gas.
摘要翻译： 包括限定燃烧器的中心轴线的中心氧化剂喷嘴的燃烧器以及各自具有与燃烧器的轴线间隔开的轴线的多个火焰保持器，每个火焰保持器包括高形状因子喷嘴，其包括具有形状的喷嘴开口 因子为约10至约75，形状因子被定义为喷嘴周长的平方除以喷嘴横截面积的两倍，以及围绕高形状因子喷嘴的环形喷嘴，其中高形状因子喷嘴被配置为 供给燃料气体和氧化剂气体中的一种，并且环形喷嘴构造成供给燃料气体和氧化剂气体中的另一个。
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公开(公告)号：US20130143168A1
公开(公告)日：2013-06-06
申请号：US13690492
申请日：2012-11-30
IPC分类号： F23D14/58
CPC分类号： F23D14/58 , F23D14/22 , F23D14/32 , F23D14/583 , Y02E20/344
摘要： A burner having a high shape factor nozzle including a nozzle opening having a shape factor from about 10 to about 75, the shape factor being defined as the square of the nozzle perimeter divided by twice the nozzle cross-sectional area, and an annular nozzle surrounding the high shape factor nozzle, wherein the high shape factor nozzle is configured to be supplied with one of a fuel gas and an oxidizer gas, and the annular nozzle is configured to be supplied with the other of a fuel gas and an oxidizer gas. A method of rapid energy release combustion, including supplying a fuel gas and an oxidizer gas to a burner having a high shape factor nozzle and an annular nozzle surrounding the high shape factor nozzle.
摘要翻译： 一种具有高形状因子喷嘴的燃烧器，其包括具有约10至约75的形状系数的喷嘴开口，所述形状因子被定义为喷嘴周边的平方除以喷嘴横截面积的两倍，以及围绕 高形状因子喷嘴，其中高形状因子喷嘴构造成供应燃料气体和氧化剂气体中的一种，并且环形喷嘴构造成供应燃料气体和氧化剂气体中的另一种。 一种快速能量释放燃烧的方法，包括向具有高形状因子喷嘴的燃烧器和围绕高形状因子喷嘴的环形喷嘴提供燃料气体和氧化剂气体。
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公开(公告)号：US11441206B2
公开(公告)日：2022-09-13
申请号：US15989945
申请日：2018-05-25
发明人： Shailesh Pradeep Gangoli , Avishek Guha , Anshu Gupta , Reed Jacob Hendershot , Michael J. Gallagher , Martin Lawrence , Petr Tlamicha
摘要： A system and method of controlling a metal melting process in a melting furnace, including determining at least one furnace parameter characterizing a melting furnace, adding a charge containing solid metal into the melting furnace, detecting at least one charge parameter characterizing the charge, firing a burner into the melting furnace to provide heat to melt the charge, and exhausting burner combustion products from the furnace, detecting at least one process parameter characterizing progress of melting the charge, calculating a furnace efficiency based on the at least one furnace parameter, calculating a predicted process pour readiness time based on the at least one charge parameter, the at least one process parameter, and the furnace efficiency, and controlling the metal melting process based on the predicted process pour readiness time.
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