首页>
外国专利>
spear to inject preheated oxygen-containing gas into a vessel containing a melt bath and apparatus for producing ferrous metal.
spear to inject preheated oxygen-containing gas into a vessel containing a melt bath and apparatus for producing ferrous metal.
展开▼
机译:用矛将预热的含氧气体注入装有熔池和黑色金属生产设备的容器中。
展开▼
页面导航
摘要
著录项
相似文献
摘要
A gas injection lance and an apparatus employing the lance for producing ferrous metal are provided. The lance has an elongated flow duct made of inner and outer concentric carbon steel tubes, a cooling water supply and return, and exterior surface which is designed to hold a frozen layer of slag on the duct, a gas inlet at a rear end of the duct, a tip joining the concentric tubes at the forward end of the duct, a non-metallic or refractory lining for the duct, and swirl-imparting member or members located in the duct for imparting swirl in the gas flow through the forward end of the duct.
展开▼