Yoshiyuki Matsui

Abstract:

Through the support of reconstruction from disaster of great earthquake for the eastern Japan in 2011, �Iron technology and history forum� of the Iron and Steel Institute of Japan received the request of study of molten iron and steel production in low height furnace with iron sand smelting and started up the �IMPRESSIVE�, the research workshop of �Iron Manufacturing Process Engineering and Scientific Study in Vetus Iron� in 2013. The research workshop of �IMPRESSIVE� has been studied the process engineering for ironmaking with iron sand under dynamic states in low height furnace. And it was discussed that by comparing low height furnace with iron sand smelting to blast furnace, the dynamic state was characterized by the transfer from an equilibrium state to the quasi-equilibrium state with coupling reaction in dead-man and hearth. In this report, the formation process of flow out of hot metal iron from tapping hole and the factor were considered particularly, and new researching field of the iron manufacturing process was examined.