Rotating pack bed filter with continuous cleaning system
AssigneeRegenerative Environmental Equipment Co., Inc.
InventorsRichard C. Staehle, James T. Cash
Life of this patent
Estimating the term…
Abstract
Apparatus for removing a wide variety of differing solid and aerosol waste materials from effluent or exhaust streams produced by an industrial process. This invention may be especially useful as a pre- or post-conditioner of the effluent to prevent plugging in any number of available pollution control devices. More particularly, a rotating pack bed filter removes solid and aerosol waste materials, if present, from an effluent and simultaneously regenerates the filter media by (1) heating to thermally decompose the collected material trapped in the filter media into a residue and to drive off gaseous pollutants carried by the collected material and (2) cleaning to remove the residue from the media.
Claims24
Apparatus for conditioning effluent from an industrial process, said apparatus comprising:
- (a) a housing having an effluent inlet and an effluent outlet;
- (b) an impaction filter in the housing having filter media for removing solids and aerosols if any are present in the effluent, said impaction filter dividing the housing into an inlet filter chamber disposed upstream of the filter and in flow communication with the effluent inlet and an outlet filter chamber disposed downstream of the filter and in flow communication with the effluent outlet, said inlet and outlet filter chambers together defining a filtration zone;
- and
- (c) a regeneration system for decomposing and removing solids and aerosols in the impaction filter by subjecting one portion of the filter media to a temperature in a range from about 600.degree. F. to about 1500.degree. F. while another separate portion of the media continues to filter the effluent, said regeneration system including a regeneration zone disposed in the housing and seals isolating both the inlet and outlet filter chambers defining the filtration zone from the regeneration zone.
Apparatus for sequentially removing solids and aerosols from effluent of an industrial process and then treating gaseous pollutants in the effluent, said apparatus comprising:
- (a) a housing having an effluent inlet and an effluent outlet;
- (b) an impaction filter in the housing having a filter media for removing solids and aerosols, if any are present in the effluent, said impaction filter dividing the housing into an inlet filter chamber disposed upstream of the filter and in flow communication with the effluent inlet and an outlet filter chamber disposed downstream of the filter and in flow communication with the effluent outlet, said inlet and outlet chambers together defining a filtration zone;
- (c) a regeneration system for removing solids and aerosols from one portion of the filter media while another separate portion of the media continues to filter the effluent, said regeneration system including a regeneration zone disposed in the housing and sealed from both the inlet and outlet filter chambers defining the filtration zone;
- and
- (d) a downstream pollution control device having an inlet in flow communication with the effluent outlet for treating gaseous pollutants in the effluent, said device including a pluggable flow path.
Apparatus for conditioning effluent from an industrial process, said apparatus comprising:
- (a) a housing having an effluent inlet and an effluent outlet;
- (b) an impaction filter in the housing having filter media for removing solids and aerosols if any are present in the effluent, said impaction filter comprising a support structure having a longitudinal axis, said impaction filter dividing the housing into an inlet filter chamber disposed upstream of said impaction filter and in flow communication with the effluent inlet and an outlet filter chamber disposed downstream of said impaction filter and in flow communication with the effluent outlet, said inlet and outlet filter chambers together defining a filtration zone such that the effluent flows in an axial direction generally parallel to the longitudinal axis;
- (c) a regeneration system including means free of water for removing solids and aerosols from one portion of the filter media while another separate portion of the media continues to filter the effluent, said regeneration system including a regeneration zone disposed in the housing and sealed from both the inlet and outlet filter chambers defining the filtration zone.
Dependencies are inferred from the claim text.