F - Mech Eng,Light,Heat,Weapons – 27 – D
Patent
F - Mech Eng,Light,Heat,Weapons
27
D
39/105
F27D 3/18 (2006.01) C21C 7/00 (2006.01)
Patent
CA 1134143
Attorney's Docket F-595 CONDITION RESPONSIVE CONTROL MEANS FOR USE IN DISCHARGING POWDERED REAGENT INTO A POOL OF MOLTEN METAL ABSTRACT 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.
354311
Benatar Victor
Ridout & Maybee Llp
LandOfFree
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