Pumping units for cyclonic elevator

Claim 1

Pumping units for a cylindrical cyclonic elevator tube in which fluid under pressure from a source thereof has communication therewith via a plurality of circumferentially spaced jet orifices set at inwardly direCted angles gradually increasing from a minimum angle with respect to the central axis of the tube of not less than 5* and circumferentially directed compound angles of inclination correspondingly gradually decreasing in inclination from a maximum angle circumferentially for ejecting vortically directed jets of fluid under pressure upwardly through the cyclonic elevator to effect transportation of comminuted and/or fluid material through such tube; each said pumping unit comprising in combination: a. a tubular section having an axial length substantially equal to its radius; b. a frusto-conical section having its truncated end secured to the lower end of said tubular section and its flared sides extending therefrom a distance comparable to the length of said tubular section; c. a transition ring having its outer periphery secured to the flared open end on said conical section and an inner periphery of a diameter comparable to said tubular section and having such circumferentially spaced jet orifices formed therebetween from the bottom to the upper surface thereof such that the inwardly directed angle of the minimum angle of such jet orifices converges with a projection of the inner surface of the flared side walls of said conical section, slightly above the truncated end of said conical section; d. an intermediate tubular section having a diameter equal to that of said tubular section and secured opposite thereto to the bottom surface of said transition ring with its internal periphery flush with the inner periphery of said transition ring; e. a manifold for each of said pumping units comprising an annular tube, of C-shaped cross section radially thereof and of a diameter vertically from its annular crown to its annular tail slightly greater than the vertical thickness, top to bottom, of said transition ring and having its annular crown secured to the outer periphery of the flared end of said conical section at its plane of connection to said transition ring and having its annular tail extending horizontally toward said intermediate tubular section and secured thereto for providing an annular chamber about the outer exposed periphery and bottom surface of said transition ring; f. and means for communicating said annular chamber with the source of fluid under pressure.