Apparatus for producing prills

An apparatus for producing prills from a flow of liquid, comprising:

• a hollow body arranged to rotate about a first axis of rotation, the hollow body comprising a wall that is arranged rotation symmetrically around the first axis, thereby enclosing an interior space, the wall being provided with a plurality of through-holes forming nozzles for generating jets of liquid in at least a radially outward direction with respect to the first axis when rotating the hollow body;
• a second body shaped to fit into the interior space of the hollow body, wherein the second body is nested inside the hollow body such that a gap is present between an inner surface of the wall of the hollow body and an outer surface of the second body;
• a liquid inlet in liquid connection with the gap and arranged for supplying the flow of liquid to the gap;
• a rotary drive unit for driving the rotational motion of at least the hollow body around the first axis of rotation;
• a reciprocating drive-unit arranged for reciprocally moving one of the hollow body and second body with respect to the other of the hollow body and second body along the first axis of rotation for applying a reciprocal pressure excitation on the jets of liquid;
• and
• a coupling mechanism arranged between the reciprocating drive-unit and the one of the hollow body and second body, wherein the coupling mechanism is arranged for enabling relative rotations, at least around an axis parallel to the first axis, between the one of the hollow body and second body and the reciprocating drive-unit.