Conference Proceedings
Australia/Japan Extractive Metallurgy Symposium, Sydney
Conference Proceedings
Australia/Japan Extractive Metallurgy Symposium, Sydney
On the High Temperature Properties of Blast Furnace Burdens
TO measure high temperature properties of blast furnace burdens ( the change of gas permeability accompanied by contraction, soft- ening and melting ) which govern the gas flow and its distribution, a series of experiments were carried out under simulated blast furnace conditions, using sinter, acid pellets and self -fluxing pellets. 1) The high temperature properties are affected by the ore's reducibility ( up to 1000 -1200C ), and the composition, and volume of gangue before reduction. Generally, the burde- ns with high basicity ( Ca0/Si02 ), high reduc- ibility and low volume of gangue have good high temperature properties. Good high temperature properties are : a high temperature at which the gas permeability rapidly decreases, a high melting point and a low maximum pressure drop. 2) Using acid pellets, slow-down of red- uction rate occurs around 1000C because the pellet forms a dense metallic shell, while its slag core, resulting from a FeO, Si02 and A1203 reaction, has a lower melting point. 3) The addition of MgO sources improves high temperature properties both of sinter and Pellets.
Contributor(s):
Y Yamaoka, H Hotta, Y Takasaki, S Ohzeki
-
On the High Temperature Properties of Blast Furnace BurdensPDFThis product is exclusive to Digital library subscription
-
On the High Temperature Properties of Blast Furnace BurdensPDFNormal price $22.00Member price from $0.00
Fees above are GST inclusive
PD Hours
Approved activity
- Published: 1980
- PDF Size: 1.064 Mb.
- Unique ID: P198002021