公开(公告)号：US06377602B1

公开(公告)日：2002-04-23

申请号：US09600896

申请日：2000-07-24

申请人： Bruno Aita ,  Fernando Clocchiatti

发明人： Bruno Aita ,  Fernando Clocchiatti

IPC分类号： H05B722

CPC分类号： C21C5/5217 ,  F27B3/225 ,  Y02P10/216

摘要： Method and device to feed tuyeres in an electric furnace, the tuyeres comprising a central conduit to deliver a comburent gaseous substance and a peripheral conduit to deliver a cooling gaseous substance, the method providing to send to the central conduit a comburent mixture consisting of oxygen and neutral gas (N2, Ar, etc.) in defined percentages, the oxygen and the neutral gas being fed, for each of the tuyeres, to a mixing device with a high mixing capacity, at least the pressure of the neutral gas being able to be adjusted on the relative feed line so as to modulate the pressure of the mixture according to the characteristics of the melting process.

摘要翻译： 用于在电炉中进口风口的方法和装置，所述风口包括用于输送组合气体物质的中心导管和用于输送冷却气体物质的外围导管，所述方法提供向中心导管发送由氧和 中性气体（N 2，Ar等）以确定的百分比计，将每个风口的氧气和中性气体进料到具有高混合能力的混合装置，至少中性气体的压力能够 在相对进料管线上进行调节，以根据熔融过程的特性调节混合物的压力。