Analyses on Dynamic Solid Flow in Blast Furnace Lower Part by Deadman Shape and Raceway Depth Measurement
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概要
- 論文の詳細を見る
As one of the factors of frequent troubles that occur in the transition period from all-coke operation to PC injection operation in blast furnace as well as increased troubles in recent years, increased size of the blast furnace and high-productivity operation are pointed out. Consequently, great importance is attached to burden distribution control and burden descent condition, or control of melting zone, deadman shape, solid flow at the lower part of furnace and others. In the present study, the reduced stockline surface profile was measured by the reflection intensity of microwave struck from the furnace top after blow-off with stockline reduced, and investigation was made on the countermeasures for changes in the raceway depth and furnace body profile during operation. As a result, it has been clarified that flow-down of coke into the lower part of blast furnace and inflow into the raceway are greatly subject to the existence of deadman which is the packed structure of the lower part of furnace, and further, they are closely related to dynamic behavior of the raceway and affect changes of the furnace body profile.
- The Iron and Steel Institute of Japanの論文
著者
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IMAI Takashi
Electrical, Instrument and Computer Division, Shinko EN & M Co., Ltd.
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MATSUI Yoshiyuki
R & D Lab., Kobe Steel, Ltd.
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KITANO Shinji
Kakogawa Works, Kobe Steel, Ltd.
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MATSUI Yoshiyuki
R & D Lab., Kobe Steel, Ltd.
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TANAKA Mutsumi
Kakogawa Works, Kobe Steel, Ltd.
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SAWAYAMA Muneyoshi
R & D Lab., Kobe Steel, Ltd.
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GOTO Akiyoshi
Electrical, Instrument and Computer Division, Shinko EN & M Co., Ltd.
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SAWAYAMA Muneyoshi
R & D Lab., Kobe Steel, Ltd.
関連論文
- Stabilization of Tapping Hole Length by Controlling Blast Furnace Raceway Depth
- Stabilizing Burden Trajectory into Blast Furnace Top under High Ore to Coke Ratio Operation
- All Pellets Operation in Kobe No. 3 Blast Furnace under Intensive Coal Injection
- Analyses on Dynamic Solid Flow in Blast Furnace Lower Part by Deadman Shape and Raceway Depth Measurement
- Analyses on Blast Furnace Raceway Formation by Micro Wave Reflection Gunned through Tuyere