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公开(公告)号：US11155890B2
公开(公告)日：2021-10-26
申请号：US16514122
申请日：2019-07-17
Applicant: Air Products and Chemicals, Inc.
Inventor： Anandkumar Makwana , Anup Vasant Sane , Michael David Buzinski , Gregory J. Buragino
Abstract: A tuyere comprising an inner tube including a lower section having a first diameter, an upper section having a second diameter smaller than the first diameter, and a converging transition section having a converging angle Θ from 30° to 60° connecting the lower section to the upper section, the inner tube terminating in an inner nozzle at a downstream end of the upper section; and an outer tube surrounding the inner tube so as to create an annulus there between, the outer tube including a lower section having a third diameter larger than the first diameter, an upper section having a fourth diameter smaller than the third diameter but larger than the second diameter, and a converging transition section having connecting the lower section to the upper section, the outer tube terminating in an outer nozzle at a downstream end of the upper section.
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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
Applicant: Air Products and Chemicals, Inc.
Inventor： Gregory J. Buragino , Shailesh Pradeep Gangoli , Anshu Gupta , Anup Vasant Sane , Avishek Guha , Xiaoyi He , Michael David Buzinski , Kyle J. Niemkiewicz , Russell James Hewertson
Abstract: 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：US20180237323A1
公开(公告)日：2018-08-23
申请号：US15865911
申请日：2018-01-09
Applicant: Air Products and Chemicals, Inc.
Inventor： Mark Daniel D'Agostini , Aleksandar Georgi Slavejkov , Michael David Buzinski , William J. Horan
Abstract: An oxy-fuel burner including a central burner element having a central conduit terminating in a central nozzle and an annular conduit terminating in an annular nozzle surrounding the central conduit, the central conduit flowing a first reactant and the annular conduit flowing a second reactant; a first staging conduit spaced apart from a side of the central burner element and terminating in a first staging nozzle; a second staging conduit spaced apart from an opposite side the central burner element and terminating in a second staging nozzle; a first mechanism to apportion a flow of the second reactant into a non-zero primary flow of the second reactant directed to the annular conduit and a non-zero secondary flow of the second reactant; and a second mechanism to selectively apportion the secondary flow of the second reactant between the staging conduits; wherein one reactant is fuel and the other reactant is oxygen.
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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
Applicant: AIR PRODUCTS AND CHEMICALS, INC.
Inventor： Anup Vasant Sane , Shailesh Pradeep Gangoli , Aleksandar Georgi Slavejkov , Michael David Buzinski , Jeffrey D. Cole , Reed Jacob Hendershot , Xiaoyi He
CPC classification number: 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
Abstract: 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%.
Abstract translation: 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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Patent Agency Ranking
公开(公告)号：US10781499B2
公开(公告)日：2020-09-22
申请号：US15873616
申请日：2018-01-17
Applicant: Air Products and Chemicals, Inc.
Inventor： Gregory J. Buragino , Shailesh Pradeep Gangoli , Anshu Gupta , Anup Vasant Sane , Avishek Guha , Xiaoyi He , Michael David Buzinski , Kyle J. Niemkiewicz , Russell James Hewertson
Abstract: 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：US20190293351A1
公开(公告)日：2019-09-26
申请号：US16352642
申请日：2019-03-13
Applicant: Air Products and Chemicals, Inc.
Inventor： Anup Vasant Sane , Gregory J. Buragino , Anandkumar Makwana , Michael David Buzinski , Xiaoyi He , Mark Daniel D'Agostini
Abstract: A system for melting a pelleted charge material including a furnace having a feed end configured to receive a solid pelleted charge material and a discharge end opposite the feed end configured to discharge a molten charge material and a slag, a conveyor configured to feed the pelleted charge material into the feed end of the furnace, at least one oxy-fuel burner positioned to direct heat into a melting zone near the feed end to heat and at least partially melt the pelleted charge material to form the molten charge material and slag, wherein the oxy-fuel burner uses an oxidant having at least 70% molecular oxygen, and at least one flue for exhausting burner combustion products from the furnace.
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公开(公告)号：US09664381B2
公开(公告)日：2017-05-30
申请号：US13690709
申请日：2012-11-30
Applicant: Air Products and Chemicals, Inc.
CPC classification number: F23D14/58 , F23D14/22 , F23D14/32 , F23D14/583 , Y02E20/344
Abstract: 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.
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公开(公告)号：US20160273765A1
公开(公告)日：2016-09-22
申请号：US15148526
申请日：2016-05-06
Applicant: Air Products and Chemicals, Inc.
Inventor： Anup Vasant Sane , Shailesh Pradeep Gangoli , Aleksander Georgi Slavejkov , Michael David Buzinski , Jeffrey D. Cole , Reed Jacob Hendershot , Xiaoyi He
CPC classification number: 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
Abstract: A transient heating burner including at least two burner elements each including a distribution nozzle configured to flow a first fluid and an annular nozzle surrounding the distribution nozzle and configured to flow a second fluid, the burner also including a controller programmed to independently control the flow of the first fluid 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 flow in an active distribution nozzle is greater than an average flow to the distribution nozzles and flow in a passive distribution nozzle is less than the average flow to the distribution nozzles, wherein the first fluid contains a reactant that is one of fuel and oxidant and the second fluid contains a reactant that is the other of fuel and oxidant.
Abstract translation: 一种瞬态加热燃烧器，其包括至少两个燃烧器元件，每个燃烧器元件包括分配喷嘴，所述分配喷嘴构造成使第一流体流动，并且围绕分配喷嘴流动的环形喷嘴并且构造成流过第二流体，所述燃烧器还包括被编程为独立地控制 所述第一流体到每个分配喷嘴，使得至少一个所述分配喷嘴是有效的，并且所述分配喷嘴中的至少一个是无源的，其中主动分配喷嘴中的流量大于到所述分配喷嘴的平均流量， 被动分配喷嘴小于到分配喷嘴的平均流量，其中第一流体包含作为燃料和氧化剂之一的反应物，第二流体包含作为燃料和氧化剂中的另一种的反应物。
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公开(公告)号：US20140220499A1
公开(公告)日：2014-08-07
申请号：US13758231
申请日：2013-02-04
Applicant: AIR PRODUCTS AND CHEMICALS, INC.
Inventor： Michael David Buzinski , Shailesh Pradeep Gangoli , William Otto Litrenta , Reed Jacob Hendershot , Larry Saul Zelson
IPC: F23Q3/00
CPC classification number: F23Q3/006 , F23D2207/00
Abstract: 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.
Abstract translation: 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动通道内，致动器连接到点火器的后部并且被配置为在点火器的内部前进和后退 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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