Wide angle solid cone spray nozzle capable of handling slurry flow

Claim 1

A nozzle capable of handling slurry and which has a wide angle solid cone spray discharge, including a longitudinal tubular member having an inlet which introduces slurry into the tubular member tangentially thus giving the slurry an initial spinning effect having a bell mouth outlet through which the slurry is discharged from the nozzle, baffle means located in the tubular member for subjecting the slurry to an additional spinning effect as it passes therethrough, said baffle means having an angular shaped member, the apex of which is located on the axis of the tubular member and the arms extending away from the outlet end to points closely adjacent the inner wall of the tubular member approximately 180* apart, a first planar vane attached to the end of one of the arms of the angular shaped member, said first vane extending at an angle of 30*-40* to a plane transverse to the axis of the tubular member in a direction away from the apex and having an outer arcuate edge which substantially conforms to the inner wall of the tubular member throughout approximately 180* and an inner edge spaced radially inwardly of the outer surface and defining a rectangular shaped opening surrounded on three sides by the first vane, a second planar vane attached to the end of the other arm of the angular shaped member, said second vane extending at an angle of 30*-40* to a plane transverse to the axis of the tubular member in a direction away from the apex and having an outer arcuate edge which substantially conforms to the inner wall of the tubular member throughout approximately 180* in a direction opposite to that of the first vane, said second vane having an inner edge spaced radially inwardly of the outer surface and defining a rectangular shaped opening surrounded on three sides by the second vane, the first and second vanes being positioned within the tubular member such that the spinning slurry encounters the free ends of the first and second vanes first, the free flow area through the baffle means being at least as great as the flow area of the venturi, so that solid particles do not lodge within the baffle means, causing plugging thereof.