首页>
外国专利>
Operating ferrous and non-ferrous bast furnaces
Operating ferrous and non-ferrous bast furnaces
展开▼
机译:运行的有色金属和有色金属熔炉
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method of operating a metal producing blast furnace 1 by charging carbon containing material 3 and oxidic materials 2 into the top of the furnace 1 and introducing blast air 4, commercial oxygen 8 and directly preheated gases from the direct combustion of solid, liquid or gaseous fuel 9 and 22 into the bottom of the furnace 1. The fuel may be at least in part recycled furnace gas 9. The fuel 9 and 22 is burnt in a combustion chamber 21 external to the furnace 1 with part of the blast air 4 which may be either cold or indirectly heated. These gases are then mixed with further blast air 4 before entry into the furnace 1. Water or steam 24 may also be added to the combusted gases before entry into the furnace 1.
展开▼