熔鑛爐に於ける熔銑及び熔滓の時間的變化

概要

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Changes of molten pig and slag according to the stages of tapping were investigated about the two cases : 1) when only the domestic iron ore is used and, 2) when the imported ore used, the results of which were as follows : 1) There were 13 cases of changes of the contents and temperature of the pig or slag at each tapping. 2) In case only the domestic iron ore was used, S content was observed to be increased toward the end of the tapping, while when the imported ore was solely used, the S content was seen decreased toward the end of the tapping. 3) S content was found less in the pig which came in contact with the slag zone rather than in the pig which was at the lower part of the hearth. 4) The greater part of the S content of the pig was to be eliminated while it was dropping down through the slag zone, and some of the remaining S was removed at the contact surface of the molten pig andslag. 5) When S content of the charge was high, the S in the resultant slag was also high, and on the contrary, when the S content of the charge was low, the S in the upper part of the slag is high. 6) It is effectual for the desulphurization of pig to have the slag zone made thicker.
社団法人日本鉄鋼協会の論文
1952-11-25