公开(公告)号：US07655067B2

公开(公告)日：2010-02-02

申请号：US10589935

申请日：2005-02-07

申请人： Nicolas Lucas ,  Bernard Zamuner

发明人： Nicolas Lucas ,  Bernard Zamuner

IPC分类号： C22B21/00

CPC分类号： F27B3/28 ,  C22B9/006 ,  C22B21/0092 ,  C22B21/06 ,  F27D19/00 ,  F27D2019/0006 ,  F27D2019/0034 ,  Y02P10/218

摘要： The invention relates to a method for processing aluminum in a furnace consisting in introducing an aluminum-containing material and possibly one or several types of salt into the furnace, melting said material by heating with the aid of at least one burner supplied with a combustive material and fuel in such a way that a molten aluminum possibly covered with a slag containing, in particular alumina and at least one salt is produced and in measuring a carbon monoxide and/or hydrogen concentration in the furnace atmosphere or in a smoke at the exit of the furnace. Oxygen content in the combustive material supplying at least one burner is greater than 10% by volume, preferably greater than 21% by volume. The inventive method also involves a final phase of reduction of the molten aluminum oxydation during which the fuel flow rate is substantially constant while the injected combustive flow rate is controlled at a value ranging from 3 to 15% by volume which is greater than a CO concentration in the furnace and/or in the smoke without control.

摘要翻译： 本发明涉及一种用于在炉中加工铝的方法，该方法包括将含铝材料和可能的一种或几种盐引入炉中，借助至少一种燃烧器供应燃料来加热熔化所述材料， 和燃料，使得可能产生含有特别是氧化铝和至少一种盐的炉渣的熔融铝，并且测量炉气氛中的烟气中的一氧化碳和/或氢浓度 炉子。 供应至少一个燃烧器的燃烧材料中的氧含量大于10体积％，优选大于21体积％。 本发明的方法还涉及熔融铝氧化降低的最终阶段，在该阶段期间燃料流速基本上恒定，同时将注入的燃烧流量控制在3至15体积％的值，其大于CO浓度 在炉中和/或烟雾中无控制。

公开(公告)号：US20070171954A1

公开(公告)日：2007-07-26

申请号：US10589935

申请日：2005-02-07

申请人： Nicolas Lucas ,  Bernard Zamuner

发明人： Nicolas Lucas ,  Bernard Zamuner

IPC分类号： H05B6/22

CPC分类号： F27B3/28 ,  C22B9/006 ,  C22B21/0092 ,  C22B21/06 ,  F27D19/00 ,  F27D2019/0006 ,  F27D2019/0034 ,  Y02P10/218

摘要： The invention relates to a method for processing aluminum in a furnace consisting in introducing an aluminum-containing material and possibly one or several types of salt into the furnace, melting said material by heating with the aid of at least one burner supplied with a combustive material and fuel in such a way that a molten aluminum possibly covered with a slag containing, in particular alumina and at least one salt is produced and in measuring a carbon monoxide and/or hydrogen concentration in the furnace atmosphere or in a smoke at the exit of the furnace. Oxygen content in the combustive material supplying at least one burner is greater than 10% by volume, preferably greater than 21% by volume. The inventive method also involves a final phase of reduction of the molten aluminum oxydation during which the fuel flow rate is substantially constant while the injected combustive flow rate is controlled at a value ranging from 3 to 15% by volume which is greater than a CO concentration in the furnace and/or in the smoke without control.

摘要翻译： 本发明涉及一种用于在炉中加工铝的方法，该方法包括将含铝材料和可能的一种或几种盐引入炉中，借助至少一种燃烧器供应燃料来加热熔化所述材料， 和燃料，使得可能产生含有特别是氧化铝和至少一种盐的炉渣的熔融铝，并且测量炉气氛中的烟气中的一氧化碳和/或氢浓度 炉子。 供应至少一个燃烧器的燃烧材料中的氧含量大于10体积％，优选大于21体积％。 本发明的方法还涉及熔融铝氧化降低的最终阶段，在该阶段期间燃料流速基本上恒定，同时注入的燃烧流量控制在3至15体积％的范围内，其大于CO浓度 在炉中和/或烟雾中无控制。