Direct reduction is an iron smelting process for producing solid DRI(Direct Reduced Iron)or HBI(Hot Briquetted Iron)using natural gas,coal gas and noncoke coal powder as fuel and reductant to reduce nodulized ore,block ore and fine ore under solid state.

• 直接还原是一种采用天然气、煤气、非焦煤粉作燃料和还原剂,使用球团矿、块矿、粉矿在固态下直接还原生产固体直接还原铁(DRI/HBI)的炼铁工艺技术。