Metallurgical apparatus – With control means responsive to sensed condition – With means supplying a treating agent
Patent
1976-12-15
1977-10-04
Dost, Gerald A.
Metallurgical apparatus
With control means responsive to sensed condition
With means supplying a treating agent
266217, C21C 700
Patent
active
040520412
ABSTRACT:
Apparatus for injecting a predetermined amount of a selected free flowing granular material into a body of molten metal comprising a plurality of supply hoppers for receiving a plurality of supplies of different granular materials to be injected each supply hopper having a control gate on the lower end of its outlet chute for controlling the flow of granular material within the supply hopper outwardly thereof into a receiving hopper which feeds it to an incremental volume forming position. The apparatus further includes a confined flow path for the flow of air under pressure into a granular material entraining position and for the flow of air under pressure with granular material entrained therein from the granular material entraining position to a lance for the body of molten metal, the confined flow path having valves upstream of the granular material entraining position for controlling the flow if air under pressure through the confined flow path and a power driven pocketed rotor for transferring successive incremental volumes of granular material from the incremental volume forming position to the granular material entraining position. The apparatus also includes an electric control circuit for sensing a condition indicative of the flow of a predetermined amount of granular material from the selected supply hopper and for (1) operating the control gate thereof to prevent further flow of material therefrom and (2) rendering the power driven pocketed rotor inoperable and closing the air control valve after the operation of the control gate so as to insure that all of the granular material received from the selected supply hopper prior to the operation of the control gate is fed to the incremental volume forming position, transferred to the granular material entraining position, entrained within the air under pressure flowing in the confined path and discharge therewith through the lance into the body of molten metal.
REFERENCES:
patent: 2806781 (1957-09-01), Shepherd et al.
patent: 3063699 (1962-11-01), Read
LandOfFree
Apparatus for injecting granular material into a molten metal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for injecting granular material into a molten metal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for injecting granular material into a molten metal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1771721