トンネル窯による原鐵製造の工業試驗結果

概要

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Continuous experiment was performed on a industrial scale for the production of sponge iron by using tunnel kiln furnace. Crushed ores were classified into two parts of which one consists of the size 10∿40mm, and another of the size under 10mm. The latter were crushed again up to all under 30 mesh. Ores of the size 10∿40mm were mixed with fine coke and put in chamotte containers. Fine ore was mixed with suitable amount of carburising medium. The mixture was put in a chamotte container in such way as not to mix with the reducing coke. These containers were placed on a car, which ran through the kiln. The max. temp of the kiln was kept at about 1300℃. The seduced products were solid mass of sp. gr. about 3.5. The sp. gr. of 7 may be obtained, if desired, by suitably charging conditions. According to this experiment it was shown that the sponge iron might be easily produced by tunnel kiln.
社団法人日本鉄鋼協会の論文
1944-02-25