Decrease in Carbon Consumption of a Commercial Blast Furnace by Using Carbon Composite Iron Ore
スポンサーリンク
概要
- 論文の詳細を見る
Increasing coke gasification rate can lowers the temperature of the thermal reserve zone, resulting in a decrease of carbon consumption and a reduction of the reducing agent rate of blast furnaces. To achieve this increase, the enhancement of coke reactivity itself or the close arrangement of iron ore and carbonaceous materials has been investigated in Japan. Against this, RCA, "Reactive Coke Agglomerate," having a high carbon content, has been developed, and it was found that the agglomerate mixed-in sinter layer had two functions: one having high reducibility itself and the other enhancing the reduction of the surrounding sinter. As a result of the two functions, a significant decrease of the temperature of the thermal reserve zone and an increase of gas utilization by using the agglomerate mixed-in sinter layer in a BIS test was achieved. As for the strength after reaction, disintegration was fairly small in comparison with that of the sinter both in the laboratory scale test and in a basket test using a plant's vertical probe. Long-term plant trials have been conducted at the Oita Works No. 2 Blast Furnace with a maximum use of 54 kg/tHM. It was found that RCA could lower the temperature of the thermal reserve zone and carbon consumption in a commercial blast furnace. Carbon consumption was decreased along the relationship of 0.36 kgC/tHM per 1 kgC/tHM of input carbon from RCA.
著者
-
Higuchi Kenichi
Nippon Steel Corporation Environment & Process Technology Center
-
ITO Takashi
Nippon Sport Science University
-
Yokoyama Hirokazu
Nippon Steel Corporation, Process Technology Center
-
Higuchi Kenichi
Nippon Steel Corporation, Process Technology Center
-
Oshio Akiyoshi
Nippon Steel Corporation, Oita works
関連論文
- ホルタｰ心電図を用いたサｰカディアンリズムの検討
- THE CHANGE OF AUTONOMIC NERVOUS ACTIVITY AFTER ISOKINETIC EXERCISE(Proceedings of The 8^ Asian Federation of Sports Medicine Congress 2005 Tokyo)
- 1A-09 Isokinetic muscle strength of upper extremity in archers : Measurement using a pedal machine(Muscular Function, The Proceedings of the 13th Annual Meetings of Japan Society of Exercise and Sports Physiology July 30-31, (Tokyo))
- P1-20 Differential digital photoplethysmographic analysis of microcirculatory responses in amateur boxers(The Proceedings of the 12th Annual Meetings of Japan Society of Exercise and Sports Physiology)
- 2P22 Peripheral circulatory responses of Budo athletes during positional and image loading
- Reaction Behavior of Dolomite Accompanied with Formation of Magnetite Solid Solution in Iron Ore Sintering Process
- CHANGES IN FINGER COLD-INDUCED VASODILATION BETWEEN SKI-AND PHYSICAL-TRAINING(Proceedings of The 8^ Asian Federation of Sports Medicine Congress 2005 Tokyo)
- 1P20 Surface electromyograpliy study during Push-Pull movement in Archery
- P2-3 Comparative study of surface electromyography on upper extremity muscular activities during release movement in archery(The Proceedings of the 12th Annual Meetings of Japan Society of Exercise and Sports Physiology)
- 1PC2 Surface electromyography study of clicker signal and before release in archery(The Proceeding of the 14th Annual Meeting of Japan Society of Exercise and Sports Physiology July 29-30, (Hiroshima))
- Reaction behavior of Formed Iron Coke and Its Effect on Decreasing Thermal Reserve Zone Temperature in Blast Furnace
- Decrease in Carbon Consumption of a Commercial Blast Furnace by Using Carbon Composite Iron Ore