Application of High Temperature Properties Test Results to Blast Furnace Operation Analysis and Quality Design of Sinter

Abstract

Heating-up reduction tests under load were carried out for investigating high temperature propertiesby using various kinds of sinter made by sintering pot. On the basis of test results, it was clarified that high temperature properties of sinter could be primarily evaluated by its cold strength and reduction properties at low temperatures. The close relation between high temperature properties of sinter and blast furnace performance was confirmed from the operation analysis of actual blast furnace.
Moreover, quality design of sinter for blast furnace operation is described. The direction of improvement of sinter quality was discussed.