Abstract
In this paper the multiphase transient multi-dimensional mathematical model of the blast furnace is applied to analyze the coke based blast furnace process operating with simultaneous injection of pulverized coal and charcoal. Simultaneous injection of pulverized charcoal and coal has an advantage of increasing combustion efficiency in the raceway and, in addition, allows the use of coal brands with higher sulfur content. Therefore, these technologies attract increasing attention for reducing the hot metal cost. Three cases of coke based operations were analyzed: a) with pulverized coal injection at 200kg/thm, b) with pulverized charcoal injection at 200kg/thm and c) with pulverized coal 200kg/thm and charcoal injection at 50kg/thm. Simulation results suggested that higher amount of pulverized coal could be obtained if the oxygen of the blast is enriched. These results also reveled that the coke rate can be decreased to around 210 kg/thm keeping smooth operation.
| Original language | English |
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| Pages | 165-168 |
| Number of pages | 4 |
| Publication status | Published - 2006 Dec 1 |
| Externally published | Yes |
| Event | 4th International Congress on the Science and Technology of Ironmaking, ICSTI 2006 - Osaka, Japan Duration: 2006 Nov 26 → 2006 Nov 30 |
Other
| Other | 4th International Congress on the Science and Technology of Ironmaking, ICSTI 2006 |
|---|---|
| Country/Territory | Japan |
| City | Osaka |
| Period | 06/11/26 → 06/11/30 |
ASJC Scopus subject areas
- Metals and Alloys