Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
175 words
A device for producing a circulating flow particularly in respect to a metal melt in a metallurgical reactor and at the location of a reaction zone defined between the contacting surfaces of two liquids of different specific gravity with the low specific gravity liquid floating on the surface of the higher specific gravity liquid, comprising first flow producing means adapted to be located adjacent the reaction zone for moving the high specific gravity liquid from a central location below the reaction zone radially outwardly in the vicinity of the reaction zone, and second flow producing means adapted to be located adjacent the reaction zone for moving the liquid of low specific gravity from an outer peripheral location inwardly in the vicinity of the reaction zone, said first and second flow producing means including means for moving in the liquid of low specific gravity radially and centripetally inwardly and for discharging the liquid of lower specific gravity in an inner central location for return flow outwardly directly above the level line of the two contacting liquids.
Claim 2
Dependent Claim
37 words
A device, according to claim 1, wherein said flow producing means includes means for taking suction in the liquid of high specific gravity for moving it upwardly and then outwardly into the vicinity of the reaction zone.
Claim 3
Dependent Claim
32 words
A device, according to claim 1, wherein said first flow producing means includes means for directing the liquid of high specific gravity upwardly and outwardly in the vicinity of the reaction zone.
Claim 4
Independent Claim
142 words
A device for producing a circulating flow particularly of the melt in a crucible of a metallurgical process which requires a reaction between two liquids of different specific gravity having their surfaces in contact with the lower specific gravity liquid floating on the surface of the higher specific gravity liquid, comprising a first pump having a first rotatable impeller adapted to be located in the liquid of high specific gravity and including a central suction for the intake of the liquid of high specific gravity and a radial discharge for discharging the liquid of high specific gravity radially outwardly in the vicinity of the reaction zone and a second pump adapted to be located in the liquid of low specific gravity and having means for drawing the low specific gravity inwardly and discharging it in a central area adjacent the reaction zone.
Claim 5
Dependent Claim
38 words
A device, according to claim 5, wherein said first pump includes an elongated suction pipe adapted to be extended downwardly into the high specific gravity liquid for taking suction at a a location remote from the reaction zone.
Claim 6
Dependent Claim
40 words
A device, according to claim 5, wherein said second pump includes a plurality of impeller blades of generally curved formation shaped to draw the liquid of low specific gravity radially inwardly and to discharge it centrally of the reaction zone.
Claim 7
Dependent Claim
42 words
A device, according to claim 5, wherein said first pump includes a central suction and an impeller connected to said suction and extending radially upwardly and outwardly from said Suction for delivering the liquid of high specific gravity radially upwardly and outwardly.
Claim 8
Dependent Claim
80 words
A device, according to claim 5, where said first impeller includes a conically shaped portion having a central suction a suction pipe connected to said conically shaped portion and adapted to extend downwardly into the liquid of high specific gravity, and a cylindrical discharge section adapted to receive liquid pumped through the central suction and into said first impeller and having a plurality of openings therein for discharging said high specific gravity liquid outwardly and upwardly into the reaction zone.
Claim 9
Dependent Claim
110 words
A device, according to claim 5, wherein said first rotary impeller includes upwardly and radially outwardly extending passage defining blade means with a central suction adapted to be located in the high specific gravity liquid forming said first pumping means, said blade means formed on the exterior of said impeller forming said second pumping means, said impeller with said blade means being rotatable to produce a central rotatable vortex cavity and a surrounding higher level of both liquids, said blade means being such as to produce a radial outward flow of the lower density liquid at a location adjacent the contacting surfaces of said higher and lower specific gravity liquids.
Claim 10
Dependent Claim
131 words
A device, according to claim 5, including a rotatable shaft adapted to be positioned in a crucible having the high and low density liquids, said first pumping means including an impeller section connected to the inner end of said shaft at a location below the contacting surface level of the two liquids and having a central suction, and means extending radially upwardly from said suction and outwardly at a plurality of locations defining discharge passages for the liquid of high specific gravity, and blade elements defined on the upwardly and outwardly extending exteriors of said impeller shaped to produce an outward rotational flow of the lower density liquid when the rotation is sufficient to cause a vortex inner flow around said impeller and a raising of the level surrounding said impeller.