US 5,348,573 A · Annular scrubber

Abstract

A scrubber having a housing and a pair of replaceable and removable perforated casings within the housing. Preferably, the casings are cylindrical and concentric forming an inner corespace inside the innermost casing and an annular fillspace between the casings. A central, conical feeder at the top of the housing permits uniform distribution of treatment media into the annular fillspace. Circulation of exhaust gas through the scrubber is provided by a removable inlet pipe and removable outlet pipe. Contaminant-laden exhaust gas that is fed into the core, percolates through the treatment media and is discharged out through the housing. The stream of exhaust gas can be reversed without any modification to the internal or external parts of the scrubber. A plurality of removable horizontally extending cylindrical pipes secured to the lower end of the housing are used to remove the exhausted treatment media without disturbing surrounding piping through discharge ports secured to the lower end of the housing.

Claims34

Dependent claims

A scrubber for holding a treatment media that removes contaminants from exhaust air, comprising:

a housing defining a horizontal, removable inflow port and a horizontal, removable outflow port;
a removable outer casing disposed inside the housing, the outer casing having perforations around its perimeter along a substantial portion of its surface, the outer casing and the housing defining a voidspace between them;
a removable inner casing disposed inside the outer casing, the inner casing having perforations around its perimeter along a substantial portion of its surface, the inner casing enclosing a corespace and the inner casing and outer casing defining a fillspace between them for receiving the treatment media;
the inner casing and the outer casing being structurally unattached to the housing;
and
means for directing a stream of exhaust air through the treatment media between the corespace and the voidspace.

3 more elements

Dependencies are inferred from the claim text.

Annular scrubber

Life of this patent

Annular scrubber

Life of this patent

Abstract

Claims34