稼働大型高炉の融着帯直接計測技術の開発と根部層構造

概要

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A belly probe was newly developed at Oita No.2 blast furnace. It has the function of observing directly the furnace conditions and measuring the solid temperature by an image fiberscope, identifying and measuring layer structure by a microwave during operation, gas temperature and gas composition measurement and taking burden material samples during scheduled shutdown. The conditions of the lower part of the furnace during operation were observed successfully. Some knowledge relating to the cohesive zone and its surrounding neighborhood were obtained through our measurements. The results are summarized as follows : 1) The burden materials were observed layer by layer and were found to occasionally be inclined. The maximum inclination angle was estimated to be about 20 degrees. 2) The coke between the cohesive zone and the deadman was observed, as an image, to be floating. The gas volume flowing in this region was estimated to be about at least one third of the bosh gas volume and the gas volume distribution at the lower part of the furnace was estimated to be relatively large.
社団法人日本鉄鋼協会の論文
1994-06-01