Einfluß der Kreislaufstoffe auf den Hochofenbetrieb

Wenzel, Werner; Gudenau, Heinrich Wilhelm; Wee, Efren; Mey, Klaus-Peter

doi:10.1007/978-3-322-88429-9_3

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“…At present, along with the shortage of coking coal resource and the attention to energy conservation and emission reduction, it is extremely urgent to realise further carbon savings and lower CO 2 emissions in the traditional blast furnace (TBF). The oxygen blast furnace (OBF) proposed by Wenzel and Gudenau 1 in 1970. The OBF is characterised by the operation of pure oxygen instead of the hot blast and the recycling the top gas after removal CO 2 .…”

Section: Introductionmentioning

confidence: 99%

Reduction behaviour of ferrous burden under simulated oxygen blast furnace conditions

Liu

Wang

Zhang

et al. 2014

Ironmaking & Steelmaking

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The reduction behaviour of sinter and pellets was investigated by a programmable reduction apparatus to simulate the traditional blast furnace (TBF) and the oxygen blast furnace (OBF). The starting temperature for reduction of sinter and pellet in the OBF decreased 60 and 150uC compared with that in the TBF and, by the time the temperature reached 1100uC the reduction degree of sinter and pellet was 100.0 and 98.7% in the OBF compared to 94.0 and 83.1% in the TBF. The trends of the reduction rate of sinter and pellet were consistent in OBF and TBF. There are two peak values at about 60 and 80 min and in the OBF the third peak value of pellet emerged at 40 min. In addition, the mineral microstructures of the ferrous burden were characterised by means of SEM and the area proportion of metallic iron zone was obtained by SEM photos.

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Section: Introductionmentioning

confidence: 99%