The DR furnace is a steel vessel with an internal refractory lining in the reducing zone.
直接还原炉是一种钢制容器，在其还原带内具有耐火材料做的炉衬。
2
The results showed that there was the recirculation zone in the furnace due to the interaction of the jets.
计算结果表明，由于射流之间的相互作用，在炉膛后面存在回流区。
3
The non-oxidizing zone is consisted of entry sealed room, waste gas preheating zone, direct heating zone, and furnace nozzle and flue gas exhausting system.