Metallurgical apparatus – With control means responsive to sensed condition – By treated material sampling means
Patent
1998-03-12
1999-12-21
Willis, Prince
Metallurgical apparatus
With control means responsive to sensed condition
By treated material sampling means
75382, 75386, 75387, 266 88, 266 94, 266 99, 373 81, C21C 104, C21D 1100, C21B 724, F27D 300
Patent
active
060045043
ABSTRACT:
A method and apparatus for improved control of continuous electric arc furnace steelmaking in which a charge velocity detector measures charge velocity of metallic charge introduced to the furnace. A charge mass detector measures a charge mass of metallic charge introduced to the furnace. A computer determines a feed rate based on the charge velocity and the charge mass. An automatic bath level probe detects a steel bath. The computer determines a steel bath level and optimal positions to insert a temperature probe and an oxygen lance, and further predicts new bath levels from one tapping time to the next tapping time. The temperature probe is inserted to an optimal measurement position based on the steel bath level and measures a steel bath temperature. The oxygen lance is positioned and maintained at an optimal oxygen injection position and injects oxygen into the bath.
REFERENCES:
patent: 5507854 (1996-04-01), Yamada et al.
patent: 5513206 (1996-04-01), Mori et al.
patent: 5788921 (1998-08-01), Gitman et al.
McGuthry-Banks Tima
Techint Compagnia Tecnica Internazionale
Willis Prince
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