Patent ID: 6451271
Filing Date: 2002-09-17
Classification: B01F,Y10T

Abstract:
Apparatus for delivering a solution of a solid chemical material which includes a housing (12) having a base (14) and upwardly extending side walls (16), said base (14) and side walls (16) defining a cavity (18), an elongated substantially vertical hollow container (20) positioned within said cavity (18), said container having side walls (22) which are spaced from said side walls (16) of said housing, a lid (24) connecting an upper terminus of the side walls (16) of the housing to the container (20), thereby defining a collection reservoir (26) between said container (20) and said housing (12), a grid (28) having a plurality of perforations (30) mounted within said container (20) below said lid (24) but spaced from and substantially parallel to said base (14), said grid (28) arranged and designed for supporting treating tablets of solid dissolvable chemical material which is soluble in liquid, said grid (28) dividing said container (20) into an upper chamber (30) and a lower chamber (32), the side walls (22) of said container (20) between said lid (24) and said grid (28) having a plurality of radially arrayed openings (34) that permit liquid communication between said upper chamber (30) and said collection reservoir (26),characterized in that a pipe is at least partially disposed in said collection chamber, said pipe having an outlet directed tangentially toward the inner wall (31) of said lower chamber (32), said pipe having an inlet (80), a three way valve having an inlet in fluid communication with a source of pressurized liquid, a first outlet in fluid communication with said inlet of said pipe, and a second outlet in fluid communication with a bypass pipe which has an outlet which opens into said collection chamber (26) whereby, said three way valve is arranged and designed with adjustment to divert flow of said pressurized liquid to said collection chamber (26), thereby providing a variable flow of liquid tangentially into said lower chamber (32) via said pipe, whereby application of pressurized water tangentially into said lower chamber (32) causes liquid to rise radially outwardly in said lower chamber (32) through radially outward perforations of said grid (28) and to impinge on said treating tablets in said upper chamber (30) for dissolving said chemical material in said liquid and forming a liquid dissolving zone (44) about said grid (28), with a portion of said liquid in said liquid dissolving zone (44) communicating with said collection reservoir (26) via said radially arranged openings (34) and with another portion of said dissolved liquid returning to said lower chamber (32) via radially inward perforations of said grid (28), and an outlet line (38) fluidly connected to said collection reservoir (26).