US 6,582,297 B2 · Livestock facility ventilation exhaust air dust removal system

Abstract

A livestock facility exhaust system to remove a majority of the dust and other such odorous airborne particulate material from air exhausted by power ventilation equipment from a livestock confinement building and without a significant increase in static pressure within the ventilation system. This is accomplished by a free standing enclosure of high strength air permeable material supported by a hoop structure around the exhaust end of the containment building of the livestock facility. Exhausted air enters the enclosure and is temporarily contained therein. Air circulates around impaction surfaces in the enclosure that promote precipitation of airborne particulates from the air stream. A discharge opening is located at or near the top of the enclosure. Exhaust air rid of most of the airborne particulates moves upward and out through the opening. The enclosure also serves to deflect outside wind from the fan orifices which helps to maintain fan performance.

Claims22

Dependent claims

A system for removal of airborne particulate material entrained in air exhausted through ventilation equipment of a livestock housing facility, comprising:

a livestock housing facility vertical wall with an interior side and an exterior side;
one or more ventilation fans installed in the wall with outlets on the exterior side of the wall for moving particulate entrained air from the interior side of the wall to the exterior side;
a frame standing next to the wall;
a porous fabric material cover covering the frame and forming an enclosed interior chamber encompassing a volume of space adjacent the wall and having a front opening open to the wall and edges sealed relative to the wall;
said chamber encompassing the ventilation fan outlets;
said cover having a top section with an opening forming a discharge opening for air from the chamber.

3 more elements

An enclosure system for control of airborne particulate material exhausted by ventilation fan equipment through ventilation fan outlets mounted in a wall of a livestock housing facility, comprising:

a frame that can be located next to a wall of a livestock housing facility having one or more exhaust fans mounted in the wall to move particulate entrained air through ventilation fan outlets from the interior of the housing facility to the exterior of the housing facility;
a porous fabric material cover covering the frame forming an enclosed interior chamber with a vertical front opening, that can encompass a volume of space adjacent a livestock housing facility wall inclusive of ventilation fan outlets providing a settling chamber for airborne particulates entrained in air exhausted from the livestock housing facility;
said frame positionable against the facility wall so that edges of the cover can engage the facility wall in substantially sealing relationship;
an upwardly open exhaust opening in the cover for exhaust of air from the settling chamber;
said cover having downwardly inclined surfaces intended to downwardly deflect air flow from the ventilation outlets to promote precipitation of particulate material from the air flow.

2 more elements

Dependencies are inferred from the claim text.

Livestock facility ventilation exhaust air dust removal system

Life of this patent

Livestock facility ventilation exhaust air dust removal system

Life of this patent

Abstract

Claims22