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公开(公告)号:US20110294082A1
公开(公告)日:2011-12-01
申请号:US12197577
申请日:2008-08-25
CPC分类号: F28D19/041 , C21D1/08 , C21D1/52 , C21D9/56 , F23C1/08 , F23L15/02 , F27B9/068 , F27B9/2407 , F27B9/36 , F27D17/004 , F27D19/00 , F27D99/0033 , F27D99/0076 , F27D2099/0053 , F28D17/005 , Y02E20/348
摘要: The invention and its group of variants consists of metal heat treating methods, a method for the combustion of liquid or gaseous fuel and hot air in a directly or indirectly fired furnace, and a heating device and regeneration nozzles for the carrying out of said method. The invention, and its variants, relate to the field of metallurgy and mechanical engineering, and can be used for metal heat processing (e.g., melting, heating for deformation, heat treatment) and for the sintering, drying (and other types of heat treatment) of non-metallic products such as ceramics. The essence of the invention are the novel technical features that make it possible to attain, while implementing the invention, the air excess factor (α) values in fuel and hot air mixture that are greater than 2.0 and mainly set within a range equal or less than 6.0. Said invention makes it possible to reduce the waste of metal, during the processing thereof, in a directly or indirectly fired furnace, and to decrease the metal hydrogenation levels, including aluminium, titanium and iron alloys. The use of the invention in indirectly fired furnaces makes it possible to extend the service life of radiant tubes and melting pots. Experimental data obtained by the inventors prove that the technical result is attained by the respective composition of the atmosphere (gaseous phase) of the combustion products of liquid or gaseous fuel and hot air mixture where the air excess factor (α) values are greater than 2.0.
摘要翻译: 本发明及其变体组由金属热处理方法,直接或间接燃烧炉内的液体或气体燃料和热空气的燃烧方法,以及用于执行所述方法的加热装置和再生喷嘴组成。 本发明及其变体涉及冶金和机械工程领域,可用于金属热处理(例如熔化,变形加热,热处理)和烧结,干燥(和其他类型的热处理 )非金属制品如陶瓷。 本发明的实质是在实施本发明的同时实现燃料和热空气混合物中的空气过剩因子(α)值大于2.0并且主要设定在等于或等于等于的范围内的新技术特征 超过6.0。 所述发明使得可以在直接或间接燃烧的炉子中减少金属的浪费,并降低金属氢化水平,包括铝,钛和铁合金。 在间接燃烧炉中使用本发明可以延长辐射管和熔炉的使用寿命。 本发明人获得的实验数据证明,技术结果是由空气过剩因子(α)值大于2.0的液体或气体燃料和热空气混合物的燃烧产物的气氛(气相)的各自组成实现的 。