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公开(公告)号：US20090246719A1
公开(公告)日：2009-10-01
申请号：US12115214
申请日：2008-05-05
IPC分类号： F23J15/00
CPC分类号： F23N1/022 , F23C9/00 , F23C2202/50 , F23L15/02 , F23N5/02 , F23N2035/06 , F23N2037/02 , F23N2037/26 , Y02E20/348
摘要： A method of firing a burner into a furnace process chamber supplies the burner with fuel and combustion air at a ratio that provides a level of excess air. The method includes the steps of reducing the flow rate of combustion air, and maintaining the level of excess air when the flow rate of combustion air is being reduced. Other steps include withdrawing exhaust gas from the process chamber, and supplying the burner with the exhaust gas at an increasing flow rate when the flow rate of combustion air is being reduced.
摘要翻译： 将燃烧器烧制到炉加工室中的方法以提供过量空气的比例向燃烧器供应燃料和燃烧空气。 该方法包括以下步骤：降低燃烧空气的流量，并且在燃烧空气的流量减少时保持过量空气的水平。 其他步骤包括从处理室抽出废气，并且当燃烧空气的流量减少时以增加的流量向燃烧器供应废气。
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公开(公告)号：US08083517B2
公开(公告)日：2011-12-27
申请号：US12115214
申请日：2008-05-05
IPC分类号： F23N1/02
CPC分类号： F23N1/022 , F23C9/00 , F23C2202/50 , F23L15/02 , F23N5/02 , F23N2035/06 , F23N2037/02 , F23N2037/26 , Y02E20/348
摘要： A method of firing a burner into a furnace process chamber supplies the burner with fuel and combustion air at a ratio that provides a level of excess air. The method includes the steps of reducing the flow rate of combustion air, and maintaining the level of excess air when the flow rate of combustion air is being reduced. Other steps include withdrawing exhaust gas from the process chamber, and supplying the burner with the exhaust gas at an increasing flow rate when the flow rate of combustion air is being reduced.
摘要翻译： 将燃烧器烧制到炉加工室中的方法以提供过量空气的比例向燃烧器供应燃料和燃烧空气。 该方法包括以下步骤：降低燃烧空气的流量，并且在燃烧空气的流量减少时保持过量空气的水平。 其他步骤包括从处理室抽出废气，并且当燃烧空气的流量减少时以增加的流量向燃烧器供应废气。
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公开(公告)号：US08033254B2
公开(公告)日：2011-10-11
申请号：US12144905
申请日：2008-06-24
IPC分类号： F17C9/02
CPC分类号： B01B1/005 , F17C2227/0395 , F17C2260/044 , F23C3/004
摘要： A submerged combustion vaporizer may include a premix burner with multiple integral mixers for forming premix and discharging the premix into the duct system that communicates the burner with the sparger tubes. The SCV may further include a NOx suppression system that injects a staged fuel stream into the exhaust in the duct system, and/or a NOx suppression system that mixes water with the premix.
摘要翻译： 浸没燃烧蒸发器可以包括具有多个整体式混合器的预混合燃烧器，用于形成预混合物，并将预混合物排放到将燃烧器与分布器管连通的管道系统中。 SCV还可以包括将分级燃料流注入管道系统中的排气中的NOx抑制系统和/或将水与预混合物混合的NOx抑制系统。
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公开(公告)号：US20080251036A1
公开(公告)日：2008-10-16
申请号：US12144905
申请日：2008-06-24
CPC分类号： B01B1/005 , F17C2227/0395 , F17C2260/044 , F23C3/004
摘要： A submerged combustion vaporizer may include a premix burner with multiple integral mixers for forming premix and discharging the premix into the duct system that communicates the burner with the sparger tubes. The SCV may further include a NOx suppression system that injects a staged fuel stream into the exhaust in the duct system, and/or a NOx suppression system that mixes water with the premix.
摘要翻译： 浸没燃烧蒸发器可以包括具有多个整体式混合器的预混合燃烧器，用于形成预混合物，并将预混合物排放到将燃烧器与分布器管连通的管道系统中。 SCV还可以包括将分级燃料流注入管道系统中的排气中的NOx抑制系统和/或将水与预混合物混合的NOx抑制系统。
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公开(公告)号：US07832365B2
公开(公告)日：2010-11-16
申请号：US11514635
申请日：2006-09-01
IPC分类号： F17C9/02
CPC分类号： B01B1/005 , F17C2227/0395 , F17C2260/044 , F23C3/004
摘要： A submerged combustion vaporizer may include a premix burner with multiple integral mixers for forming premix and discharging the premix into the duct system that communicates the burner with the sparger tubes. The SCV may further include a NOx suppression system that injects a staged fuel stream into the exhaust in the duct system, and/or a NOx suppression system that mixes water with the premix.
摘要翻译： 浸没燃烧蒸发器可以包括具有多个整体式混合器的预混合燃烧器，用于形成预混合物，并将预混合物排放到将燃烧器与分布器管连通的管道系统中。 SCV还可以包括将分级燃料流注入管道系统中的排气中的NOx抑制系统和/或将水与预混合物混合的NOx抑制系统。
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公开(公告)号：US20090020051A1
公开(公告)日：2009-01-22
申请号：US12202451
申请日：2008-09-02
申请人： Thomas F. Robertson , John N. Newby
发明人： Thomas F. Robertson , John N. Newby
IPC分类号： F23B90/00
CPC分类号： C22B21/0084 , F27B3/205 , F27B3/28 , F27D17/004 , F27D19/00 , F27D21/00
摘要： An apparatus for melting a metal load includes a furnace having a melting chamber with a hearth and a molten metal outlet. The apparatus further includes non-regenerative burners that are operative to fire into the melting chamber, and regenerative burners that also are operative to fire into the melting chamber. The method includes the steps of firing non-regenerative burners into the chamber to provide heat for melting the load, and also firing regenerative burners into the chamber to provide heat for melting the load.
摘要翻译： 用于熔化金属负载的设备包括具有炉底和熔融金属出口的熔化室的炉。 该装置还包括可操作以射入熔化室的非再生式燃烧器，以及也可操作地射入熔化室的蓄热式燃烧器。 该方法包括以下步骤：将非再生式燃烧器喷射到室中以提供用于熔化负载的热量，以及将再生燃烧器发射到室中以提供用于熔化负载的热量。
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公开(公告)号：US07452400B2
公开(公告)日：2008-11-18
申请号：US11176465
申请日：2005-07-07
申请人： Thomas F. Robertson , John N. Newby
发明人： Thomas F. Robertson , John N. Newby
IPC分类号： C22B21/00
CPC分类号： C22B21/0084 , F27B3/205 , F27B3/28 , F27D17/004 , F27D19/00 , F27D21/00
摘要： An apparatus for melting a metal load includes a furnace having a melting chamber with a hearth and a molten metal outlet. The apparatus further includes non-regenerative burners that are operative to fire into the melting chamber, and regenerative burners that also are operative to fire into the melting chamber. The method includes the steps of firing non-regenerative burners into the chamber to provide heat for melting the load, and also firing regenerative burners into the chamber to provide heat for melting the load.
摘要翻译： 用于熔化金属负载的设备包括具有炉底和熔融金属出口的熔化室的炉。 该装置还包括可操作以射入熔化室的非再生式燃烧器，以及也可操作地射入熔化室的蓄热式燃烧器。 该方法包括以下步骤：将非再生式燃烧器喷射到室中以提供用于熔化负载的热量，以及将再生燃烧器发射到室中以提供用于熔化负载的热量。
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公开(公告)号：US07282172B2
公开(公告)日：2007-10-16
申请号：US10766163
申请日：2004-01-28
IPC分类号： C21B7/16
CPC分类号： C21B13/02 , C21B11/02 , F27B1/16 , F27B1/26 , F27D19/00 , F27D2019/004 , F27D2019/0043
摘要： A vertical shaft melting furnace is operated in a method that includes firing a plurality of burners to generate combustion products, and directing jets of the combustion products into the shaft in a bottom region of the shaft. The method further includes directing a jet of hot gas into the shaft in an upper region of the shaft in a non-radial direction, whereby the jet of hot gas can induce a swirl to disperse a concentrated channel of combustion products rising from the bottom region to the upper region through a void in unmelted portions of a load of metal pieces in the shaft. The jet of hot gas directed into the upper region of the shaft can include recirculated flue gas, a mixture of air and recirculated flue gas, or combustion products that are generated by a burner. If the jet of hot gas includes combustion products that are generated by a burner, the burner is a secondary burner that preferably is fired into the shaft with a relatively low heat input. In each case, the jet of hot gas preferably is one of a plurality of jets of hot gas that are directed into the shaft in the upper region of the shaft, and preferably at an uppermost level, in non-radial directions that together extend in a common direction circumferentially around the inside of the shaft.
摘要翻译： 垂直轴熔炼炉以包括烧制多个燃烧器以产生燃烧产物并将燃烧产物的喷射引导到轴的底部区域中的轴的方法操作。 该方法还包括在非径向方向上将热气体射流引导到轴的上部区域中，由此热气体射流可以引起涡流以分散从底部区域上升的燃烧产物的浓缩通道 通过轴中的金属片的负载的未熔化部分中的空隙而到达上部区域。 引导到轴的上部区域的热气体的射流可以包括再循环的烟气，空气和再循环的烟道气的混合物，或由燃烧器产生的燃烧产物。 如果热气体射流包括由燃烧器产生的燃烧产物，则燃烧器是二次燃烧器，其优选地以相对低的热量输入射入轴。 在每种情况下，热气体射流优选地是多个热气流中的一种，其在轴的上部区域中被引导到轴中，并且优选地处于最高水平，在非径向方向上一起延伸 周向围绕轴的内部的共同方向。
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公开(公告)号：US06206686B1
公开(公告)日：2001-03-27
申请号：US09071270
申请日：1998-05-01
IPC分类号： F23C500
CPC分类号： F23C9/006 , F23C9/08 , F23D14/22 , F23D14/66 , Y02E20/348
摘要： A low NOx burner and related method are disclosed including the steps of supplying a first reactant stream and introducing a second reactant stream into the first reactant stream at a first point so as to produce co-flowing streams. This resulting fuel/oxidant stream is discharged into a furnace environment having inert combustion products substantially equilibrated to furnace temperature, so as to entrain the combustion products and mix them together with the co-flowing stream. The temperature of the co-flowing stream is increased by the entrained products until it ignites in a combustion region displaced from the first point. Thus ignition cannot occur until the reactant stream has been diluted by inert products of combustion, reducing both oxygen concentration and peak flame temperature, so as to suppress NOx production.
摘要翻译： 公开了一种低NOx燃烧器和相关方法，其包括以下步骤：在第一点处供应第一反应物流并将第二反应物流引入第一反应物流中，以产生共流。 将所得到的燃料/氧化剂流排放到具有基本平衡于炉温的惰性燃烧产物的炉子环境中，以便夹带燃烧产物并将它们与共同流动物料混合在一起。 共同流动的温度由夹带的产物增加，直到其在从第一点移位的燃烧区域中点燃。 因此，直到反应物流被惰性惰性产物稀释后才能发生点火，降低氧气浓度和峰值火焰温度，以抑制NOx的产生。
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公开(公告)号：US20120251960A1
公开(公告)日：2012-10-04
申请号：US13431036
申请日：2012-03-27
CPC分类号： F23L15/02 , F23N1/042 , F23N5/003 , F23N5/022 , F23N2021/08 , F23N2021/12 , F23N2025/14 , F23N2035/04 , F23N2035/06 , Y02E20/348
摘要： A method includes the steps of operating a regenerative burner in cycles, including a firing cycle in which fuel and combustion air are discharged from the burner into a process chamber, and a nonfiring cycle in which a quantity of gas is withdrawn from the process chamber through a regenerative bed associated with the burner. The method further includes steps of detecting and responding to a temperature that differs from a predetermined temperature at a location in the process chamber. In a first step of responding to the detected temperature, a flue damper system is operated to vary a flow of gas within the process chamber relative to the location of the detected temperature. A second step of responding to the detected temperature reduces the quantity of gas to be withdrawn from the process chamber through the regenerative bed in a subsequent nonfiring cycle.
摘要翻译： 一种方法包括以下步骤：循环地操作蓄热式燃烧器，包括燃烧和燃烧空气从燃烧器排放到处理室中的燃烧循环，以及非燃烧循环，其中一定量的气体从处理室通过 与燃烧器相关联的再生床。 该方法还包括检测并响应于在处理室中的位置处与预定温度不同的温度的步骤。 在响应检测到的温度的第一步骤中，操作烟道阻尼器系统以相对于检测到的温度的位置改变处理室内的气体流。 响应检测到的温度的第二步骤是在随后的非燃烧循环中减少通过再生床从处理室中排出的气体的量。
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