发明名称 Preheating of metal strip, especially in galvanizing or annealing lines
摘要 Process for preheating metal, especially steel strip in direct-fired preheating sections for the purpose of limiting the oxidation of the heated metal strip, whatever the production configurations, which consists in using a preheating zone that can be divided, along its length, into a plurality of zones of unit length corresponding to one burner, it being possible for each of the said burners to be operated individually under fixed conditions so as to accurately adjust its air/gas setting, and therefore the resulting atmosphere in the furnace, wherein a certain number of burners starting from the downstream end of the preheating zone are ignited, the length of the furnace zone affected by the ignition of the said burners and the length of the recovery zone, i.e. the zone in which the burners are extinguished, being variable depending on the heat demand and in that each burner operates at full power and with a constant air/gas setting.
申请公布号 US2002162612(A1) 申请公布日期 2002.11.07
申请号 US20010796355 申请日期 2001.03.02
申请人 STEIN HEURTEY 发明人 DELAUNAY DIDIER;MOREL ALAIN
分类号 C23C2/02;C21D1/52;C21D1/76;C21D9/56;C21D11/00;(IPC1-7):C21D1/00 主分类号 C23C2/02
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