The fuel powder spraied in deoxidiation zone can advance the chain reaction of CO,raise the ratio of combustion,thereby raise the temperature of molten iron and melting rate.

• 喷入还原带的燃料粉,促进了CO的链式燃烧反应,提高炉气燃烧比,从而提高铁水温度和熔化率或降低焦耗量;