抄録
Owing to the technical advances achieved by engineering both in the construction and operation of the blast furnace, there is recently a decided trend toward increased life of lining. The durability of linings of 23 stacks which were blown out, in our Country and Manchoukuo during the past 10 years, has been averaged to 5 years 7 months.
At the Kenjiho Iron and Steel Works, No. 1 and No. 2 blast furnaces, each rated at 150 ton capacity, were recently blown out after long continuous running of 13 years 6 months and 14 years 2 months respectively. During their Campaigns, the former produced about 758, 000 tons and the latter about 790, 000 tons of pig iron.
In the present paper the auther treats of the factors influencing on the life of the lining, and the mode of the furnace working at the Kenjiho Works. In examining the blowing-out lines of the furnaces, he concludes it is mainly attributed to the operating condition inclined toward internal running that the Kenjiho furnaces worked on with torerable performance for so many years.
