Reactor for iron making

An apparatus for reactor iron making comprising

• a reactor having an upper part, a lower part, a top part connected to said upper part, and a refractory lining in said upper part and said lower part;
• at least one upper gas blowing nozzle means in said upper part of said reactor for blowing gas onto molten iron in said refractor when molten iron is present in said reactor;
• at least one lower gas blowing nozzle means in said lower part of the reactor for blowing gas directly into molten iron in said reactor when molten iron is present in said reactor,
• iron scrap charging inlet means formed in said top part of said reactor for directly charging iron scrap into said reactor,
• a vertical shaft installed directly above said inlet means and connected therewith, said vertical shaft having an upper end, a lower end, a low temperature gas exit at said upper end and an iron scrap entrance at said upper end,
• means installed in said lower end for controlling charging of the iron scrap to said reactor,
• said vertical shaft having a gas inlet positioned directly above said means for controlling charging,
• by-pass tube means connected between said top part of the reactor and said gas inlet for permitting exit of high temperature exhaust gases from said reactor and introducing said exhaust gases and iron scrap therein to be charged, and
• means in said by-pass tube means for introducing oxygen gas or air into the high temperature exhaust gases to react therewith and generate further heat.