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公开(公告)号：US4556418A
公开(公告)日：1985-12-03
申请号：US657121
申请日：1984-10-03
申请人： Andrew J. Syska
发明人： Andrew J. Syska
CPC分类号： C21B11/02 , C21B13/14 , Y02P10/136 , Y10S266/90
摘要： A process for melting a ferrous burden comprising scrap iron, scrap steel, pig iron, direct reduced iron or mixtures thereof without the use of coke is provided. Air or enriched air as a primary oxidant is preheated and together with fuel is combusted to form a reducing atmosphere in a shaft furnace or forehearth which melts the ferrous burden in the melting zone of the shaft furnace. The reducing atmosphere leaving the melting zone of the shaft furnace is further combusted with a secondary oxidant in the preheating zone of the shaft furnace. The top gas from the preheating zone of the shaft furnace is combusted with a tertiary oxidant to provide a heated flue gas to preheat the primary oxidant. Optionally, the heat remaining in the flue gas after preheating the primary oxidant may be recovered in a waste heat recovery device.
摘要翻译： 提供了一种用于熔炼含铁废料的方法，包括废铁，废钢，生铁，直接还原铁或其混合物，而不使用焦炭。 作为主要氧化剂的空气或富集空气被预热，并与燃料一起燃烧，以便在竖炉或炉床中形成还原气氛，其熔化竖炉熔化区中的铁质负荷。 离开炉膛熔化区的还原气氛在竖炉的预热区中与次级氧化剂进一步燃烧。 来自竖炉的预热区域的顶部气体与第三氧化剂一起燃烧以提供加热的烟道气以预热主氧化剂。 任选地，在预热初级氧化剂之后残留在烟道气中的热量可以在废热回收装置中回收。
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公开(公告)号：US4575948A
公开(公告)日：1986-03-18
申请号：US467392
申请日：1983-02-17
CPC分类号： B01J8/1836 , F23L15/04 , F28C3/12 , F28D19/02 , B01J2208/00053 , B01J2208/0007 , B01J2208/00088 , B01J2208/00371 , Y02E20/348
摘要： Gas-solids transport and heat exchange techniques are disclosed wherein solid particulate material is circulated in a "figure 8" or a circular flow path for selective contact and/or direct heat exchange with gaseous media. The particulate material is introduced into streams of gaseous media at spaced locations in the flow path and subsequently separated from the gaseous streams following contact and/or heat exchange therewith. The gaseous streams are maintained separate from one another by loose packed bed columns of particulate material formed in the flow path and used to introduce the particulate material into the gaseous streams. The flow rate of the particulate material is regulated by the controlled biasing of particulate material from each of the columns thereof directly into the gaseous streams, and the particulate material is circulated solely through the use of the gaseous media and the force of gravity. The particulate material is circulated in cocurrent relationship with each of the gaseous streams in figure 8 flow path systems and, in circular flow path systems, the particulate material is circulated in cocurrent relationship with one of the gaseous streams and in countercurrent relationship with the other of the gaseous streams. In heat exchange applications, heat transfer between the streams of gaseous media is provided as a function of the flow rate of the particulate material and the relative flow rates of the streams of gaseous media.
摘要翻译： 公开了气固体输送和热交换技术，其中固体颗粒材料在“图8”或圆形流动路径中循环，用于与气体介质的选择性接触和/或直接热交换。 颗粒材料在流动路径中的间隔位置处被引入气态介质流中，随后在与其接触和/或热交换之后与气流分离。 通过在流动路径中形成的颗粒材料的松散填充床柱将气流彼此分离，并将颗粒材料引入气流中。 颗粒材料的流速通过将颗粒材料从其每个柱的受控偏压直接进入气流来调节，并且颗粒材料仅通过使用气体介质和重力循环。 颗粒材料与图8流路系统中的每种气流以并流关系循环，并且在圆形流动路径系统中，颗粒材料与气流中的一种以并流关系循环并与另一种气流形成逆流关系 气流。 在热交换应用中，提供气体介质流之间的热传递作为颗粒材料的流速和气体介质流的相对流速的函数。
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公开(公告)号：US5269679A
公开(公告)日：1993-12-14
申请号：US964550
申请日：1992-10-16
CPC分类号： F23C6/045 , F23C7/06 , F23C9/00 , F23C2201/20 , F23C2202/10 , F23C2900/06041 , F23C2900/09002 , Y02E20/344 , Y02E20/348
摘要： A gas-fired burner incorporating an air driven jet pump for mixing air, fuel, and recirculated flue gas is disclosed. The burner is configured for the staged introduction of combustion air to provide a fuel-rich combustion zone and a fuel-lean combustion zone. The burner achieves reduced NO.sub.x emission levels in high temperature applications which use preheated combustion air.
摘要翻译： 公开了一种燃气式燃烧器，其包括用于混合空气，燃料和再循环烟道气的空气驱动喷射泵。 燃烧器构造成用于分级引入燃烧空气以提供富燃料燃烧区和贫燃燃烧区。 燃烧器在使用预热的燃烧空气的高温应用中实现降低的NOx排放水平。
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公开(公告)号：US4111687A
公开(公告)日：1978-09-05
申请号：US737699
申请日：1976-11-01
申请人： Andrew J. Syska
发明人： Andrew J. Syska
CPC分类号： C21B13/14 , C21B13/02 , C21B13/023 , C21C5/32 , Y02P10/122 , Y02P10/136 , Y02P10/216 , Y02P10/265 , Y02P10/283
摘要： A process and apparatus for the production of intermediate hot metal suitable for further refining into steel is disclosed.The basic process includes the steps of heating a charge of ore in a reducing furnace having a reducing atmosphere therein comprising a mixture of reconditioned and recycled top gas from the reducing furnace and off-gas rich in hydrogen and carbon monoxide produced by a cupola melting unit to reduce the ore to iron, partially carburizing the reduced iron in the reducing furnace with carbon-containing off-gas produced by the cupola melting unit, and melting the reduced and carburized iron together with scrap, slag forming additives and fluxes in a cupola melting unit having a reducing atmosphere therein produced by the combustion of a rich fuel/oxidant mixture to form a molten slag and molten iron suitable for the further refining to produce steel. The process contemplates the further refining of the molten iron from the cupola in an electric steelmaking furnace or an oxygen steelmaking converter. In an alternative form of the process, the reduced and carburized iron is cooled within or outside the reducing furnace to form prereduced metal pellets suitable for use as a part of the burden in a melting unit.The apparatus comprises a refractory lined cupola melting unit portion equipped with burners capable of burning a rich fuel/oxidant mixture to produce a reducing atmosphere within the melting unit and off-gas rich in gaseuos reductants, a direct reducing unit portion communicating with the upper end of the melting unit to receive the melting unit off-gas recirculating and conditioning means to recycle at least a portion of the top gas from the upper region of the reducing unit portion to the lower region of the reducing unit portion, means for introducing ore into the direct reduction unit portion of the apparatus, and means for introducing additives and fluxes into the melting unit portion of the apparatus.
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公开(公告)号：US3990831A
公开(公告)日：1976-11-09
申请号：US610250
申请日：1975-09-04
申请人： Andrew J. Syska
发明人： Andrew J. Syska
CPC分类号： F23C9/00 , F23D11/005 , F23C2202/10 , F23C2900/06041 , F23C2900/09002
摘要： A burner for burning a vaporizable liquid fuel, comprising a suction chamber, a combustion chamber, an air inlet to the suction chamber, a vaporizing chamber, a first passage interconnecting the combustion chamber with the vaporizing chamber, a second passage interconnecting the vaporizing chamber with the suction chamber, a liquid fuel inlet atomizer connected to the vaporizing chamber, and a vortex generator at the interface of the fuel inlet atomizer, first passage, and vaporizing chamber, the generator swirling hot combustion gases from the first passage into a vortex, into which vortex the fuel inlet atomizer directs atomized liquid fuel, the first passage, vortex generator, vaporizing chamber, and second passage together defining a recirculation path, the path having sufficient width to maintain blue-flame combustion, whereby the fuel will be vaporized by hot combustion gases as it passes through the vortex generator and the vaporizing chamber, the air inlet creating a suction which draws hot combustion gases and vaporized fuel from the vaporizing chamber through the second passage and suction chamber, thereby producing a mixture for burning in the combustion chamber.
摘要翻译： 一种用于燃烧可汽化液体燃料的燃烧器，包括吸入室，燃烧室，到吸入室的空气入口，蒸发室，将燃烧室与蒸发室相互连接的第一通道，将蒸发室与 吸入室，连接到蒸发室的液体燃料入口雾化器和在燃料入口雾化器，第一通道和蒸发室的界面处的涡流发生器，发电机将热燃烧气体从第一通道旋转成涡流，形成 燃料入口雾化器的涡流引导雾化的液体燃料，第一通道，涡流发生器，蒸发室和第二通道共同限定再循环路径，该路径具有足够的宽度以保持蓝焰燃烧，由此燃料将被热蒸发 燃烧气体在通过涡流发生器和蒸发室时，空气入口产生吸入口wh 通过第二通道和吸入室从蒸发室吸入热的燃烧气体和蒸发的燃料，从而产生在燃烧室中燃烧的混合物。
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公开(公告)号：US4445842A
公开(公告)日：1984-05-01
申请号：US318372
申请日：1981-11-05
申请人： Andrew J. Syska
发明人： Andrew J. Syska
CPC分类号： F23C9/00 , F23L15/04 , F23C2202/20 , F23C2900/09002 , Y02E20/348
摘要： A recuperative burner having a recirculating conduit to direct flue gas to the combustion chamber with the air and fuel, and a compact recuperative stack with a recuperative flue gas conduit and an air passage in which air separated from the flue gas by the recuperative flue gas conduit is preheated before supplying it to the combustion chamber.
摘要翻译： 一种还原燃烧器，其具有用于将烟道气引导到具有空气和燃料的燃烧室的再循环管道，以及具有再生烟道气管道和空气通道的紧凑型还原堆，其中空气通过再生烟气管道与烟道气分离 在将其供给到燃烧室之前进行预热。
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公开(公告)号：US4374540A
公开(公告)日：1983-02-22
申请号：US076289
申请日：1979-09-07
CPC分类号： F23L15/04 , B01J8/1836 , F28C3/12 , F28D19/02 , B01J2208/00053 , B01J2208/0007 , B01J2208/00088 , B01J2208/00371 , B01J2208/00513 , Y02E20/348
摘要： Gas-solids transport and heat exchange techniques are disclosed wherein solid particulate material is circulated in a "figure 8" or a circular flow path for selective contact and/or direct heat exchange with gaseous media. The particulate material is introduced into streams of gaseous media at spaced locations in the flow path and subsequently separated from the gaseous streams following contact and/or heat exchange therewith. The gaseous streams are maintained separate from one another by loose packed bed columns of particulate material formed in the flow path and used to introduce the particulate material into the gaseous streams. The flow rate of the particulate material is regulated by the controlled biasing of particulate material from each of the columns thereof directly into the gaseous streams, and the particulate material is circulated solely through the use of the gaseous media and the force of gravity. The particulate material is circulated in cocurrent relationship with each of the gaseous streams in figure 8 flow path systems and, in circular flow path systems, the particulate material is circulated in cocurrent relationship with one of the gaseous streams and in countercurrent relationship with the other of the gaseous streams. In heat exchange applications, heat transfer between the streams of gaseous media is provided as a function of the flow rate of the particulate material and the relative flow rates of the streams of gaseous media.
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公开(公告)号：US4116611A
公开(公告)日：1978-09-26
申请号：US719428
申请日：1976-09-01
申请人： Andrew J. Syska
发明人： Andrew J. Syska
CPC分类号： F23D17/002 , F23D14/20 , Y02E20/344
摘要： A improved burner for metallurgical furnaces capable of utilizing gaseous or liquid fuels and air, enriched air or oxygen as an oxidant and adapted to accommodate rich fuel/oxidant mixtures is disclosed. The burner is capable of producing high temperatures and a reducing and non-decarburizing atmosphere without causing carbonization or other fouling of the burner or related furnace and without damaging the burner.
摘要翻译： 公开了一种能够利用气体或液体燃料和空气，富集空气或氧气作为氧化剂并适于容纳富燃料/氧化剂混合物的冶金炉的改进燃烧器。 燃烧器能够产生高温和还原和非脱碳气氛，而不会引起燃烧器或相关炉的碳化或其他结垢，并且不会损坏燃烧器。
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