高炉融着層におけるペレットおよび焼結鉱の挙動(<特集>製銑)

概要

論文の詳細を見る
An investigation has been carried out into physical and chemical behaviors of sinter and pellets taken from the cohesive zone of Amagasaki No.1 BF. The results obtained are summarized as follows : 1) The cohesion of burden materials in the early stage takes place by sintering of M・Fe particles formed on their surfaces. 2) Wustite remaining mainly in central part of pellets melts at 1350°∿1400℃ and exudes to the outside. 3) Sinter tends to have higher values of reduction degree, alkali and S contents than pellets because of the easier contact with ascending gas. 4) Alkali content in burden materials becomes higher with the progress of cohesion and kalsilite is formed in slag phase. Furthermore, glassy silicate as the main slag phase in lumpy ore contains a large amount of alkali. 5) With the progress of reduction of wustite to M・Fe, MgO content in residual wustite becomes higher and a part of MgO forms merwinite in slag phase.
社団法人日本鉄鋼協会の論文
1980-11-01