CONDITION RESPONSIVE CONTROL MEANS FOR USE IN DISCHARGING POWDERED REAGENT INTO A POOL OF MOLTEN METAL

Attorney's Docket F-595 CONDITION RESPONSIVE CONTROL MEANS FOR USE IN DISCHARGING POWDERED REAGENT INTO A POOL OF MOLTEN METAL For use in a system for enjecting powdered reagent into a pool of molten metal through a lance whose discharge end is submerged in molten metal and to which powdered re...

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Bibliographische Detailangaben
1. Verfasser:	BENATAR, VICTOR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Zusammenfassung:	Attorney's Docket F-595 CONDITION RESPONSIVE CONTROL MEANS FOR USE IN DISCHARGING POWDERED REAGENT INTO A POOL OF MOLTEN METAL For use in a system for enjecting powdered reagent into a pool of molten metal through a lance whose discharge end is submerged in molten metal and to which powdered reagent is conveyed by a flow of carrier gas, sensing means is arranged to derive a signal dependent upon the rate of flow of carrier gas to the lance and after predetermined time delay the signal is applied to control means so as to effect a shut off of the supply of powdered reagent and of the flow of carrier gas and to elevate the lance out of the pool of molten metal whenever the lance becomes clogged on the one hand or ruptured on the other.