Abstract This invention relates to apparatus for extracting solids from a gas stream. More particularly, the invention relates to an apparatus for extracting solids from a gas stream including an upright scrubber column defining an internal circular gas flow chamber, inlet and outlet gas conduits connected to the upper and lower ends of the flow chamber respectively, a liquid inlet conduit intersecting the internal circular gas flow chamber tangentially providing means of introducing fluid to wet the surface of the flow chamber, a liquid conduit extending upwardly and coaxially within the flow chamber, and a truncated conical baffle supported at the top of the liquid spray conduit defining an annular passageway between the baffle and the gas chamber, fluid being sprayed upwardly through the baffle in a fountain configuration to engage the downward flow of gas through the scrubbing column. One embodiment of the invention includes a means of varying the elevation of the conical baffle by means exterior of the scrubbing column. Another embodiment of the invention includes means of varying the diameter of the conical baffle.
An apparatus for extracting solids from a gas stream according to claim 1 wherein said internal circular gas flow chamber in said scrubbing column is defined by a constructed internal diameter venturi forming portion, said conical baffle being positioned in said venturi forming portion.
Claim 2
Dependent Claim
42 words
An apparatus for extracting solids from a gas stream according to claim 1 wherein said conical baffle is removably attached to said liquid conduit whereby conical baffles of different maximum diameters may be utilized to vary the area of said annular passageway.
Claim 3
Dependent Claim
37 words
An apparatus for extracting solids from a gas stream according to claim 1 wherein the height of said conical baffle relative to said internal gas flow chamber may be varied by means externally of said scrubbing column.
Claim 4
Dependent Claim
32 words
An apparatus for extracting solids from a gas stream according to claim 1 wherein the maximum diameter of said conical baffle may be varied by means controllable externally of said scrubbing column.
Claim 5
Dependent Claim
162 words
An apparatus for extracting solids from a gas stream according to claim 1 wherein said conical baffle includes: a base member affixed to the upper end of said liquid spray conduit and having a central opening therein for the passage of fluid upwardly therethrough to form a fountain; a plurality of relatively thin leaf members each having an upper edge, a lower edge of length greater than the upper edge and downwardly extending sides diverging outwardly between said upper and lower edges; hinge means pivotally supporting said upper edge of each of said leaf members to said base members, said leaf members being supported in overlapping relationship and forming a substantially frustoconical surface having said liquid spray conduit as an axis; and means for simultaneously varying the angle of inclination of each of said leaf members whereby the maximum diameter defined by said substantially frustoconical surface formed by said leaf members may be varied to vary the area of said annular passageway.
Claim 6
Dependent Claim
141 words
An apparatus for extracting solids from a gas stream according to claim 6 wherein said means of simultaneously varying the angle of inclination of each of said leaf members comprises: a sleeve slidably received on said liquid spray conduit below said base member; a pivot link for each of said leaf members, each of said pivot members being pivotally supported at one end to said sleeve and at the other end to one of said leaf members whereby as said sleeve is raised each of said leaf members is pivoted outwardly at an increased angle relative to said spray conduit whereby said substantially frustoconical surface formed by said leaf members has an increased maximum diameter and contrarily, when said sleeve is lowered said maximum diameter is reduced; and means extending externally of said scrubbing column for raising and lowering said sleeve.
Claim 7
Dependent Claim
92 words
An apparatus for extracting solids from a gas stream according to claim 6 wherein said scrubbing column has an opening in the side wall thereof and wherein said means extending externally of said scrubbing column for raising and lowering said sleeve comprises: a lever received and pivotally supported in said opening, the end of the portion of the lever extending within said scrubbing column being pivotally affixed to said sleeve, the portion of said lever extending exteriorly of said scrubber column serving as a handle portion for raising and lowering said sleeve.