Professor, Department of Advanced Material, Central Iron & Steel Research Institute, China
Dr. Xu Haichuan joined Central Iron and Steel Research Institute in 1994. His major researches include Iron making (DRI) technology and environmental protection technology about dust treatment. Dr. Haichuan has a vast experience in industrial applications of RHF technologies. Dr. Haichuan has authored and co- authored twenty published papers.
Topic: Production of DRI by Rotary Hearth Furnace technology in China
Abstract: The Rotary Hearth Furnace Process is a fast direct reduction process which takes cold bonded pellet containing carbon as material of RHF coal gas from twin zone gas furnace as heat sources of RHF air and gas preheated for reusing RHF gas waste heat and the metalized pellets used for coolants in converter process. Through the trial production of several months the RHF is a commercial success. RHF can effectively recover valuable metal from dust and sludge of steel plants, metalized pellets can keep original shape, good strength and about 80 percent metallization. In the testing phase two lines of 2, 00,000 TPA RHF was produced.