METHOD AND MEANS FOR REDUCING MATERIAL CONTAINING FERRIC OXIDE

摘要

A method and apparatus for reducing pulverulent iron ore with a carbonaceous material in a circulating fluidized bed is described. In such system a known difficulty is that sticking together of the particles in the bed impairs fluidization of the bed. Such impaired fluidization is avoided by controlling the flow of carbonaceous material to the bed so that there is always sufficient coke in the bed to avoid sticking.