Abstract: A venturi scrubber apparatus for separating and collecting particulate matter from gases. A stream of incoming gas is divided into a plurality of flow channels which provide input to one of a parallel plurality of venturis. Water is injected proximate the inlets of the convergent sections of the venturi passages. Alternately, a manifold also distributes water at the throat entrance along the longitudinal center line of a rectilinear throat, permitting enlargement of throat width in a range of fifteen to twenty inches with effective scrubbing. Pivoting vanes in the throat provide a variable-area throat.

Abstract: A cyclonic scrubber provides for scrubbing of a gas by liquid distributed from a compartment encircling the tower thereof. The compartment has a perforated-plate bottom through which the liquid is sprayed into the tower. Maintenance is simplified due to the fact that the perforated plate is readily accessible. Moreover, only a single conduit is needed for supplying the liquid scrubbing-agent to the compartment.