Exhaust stack scrubber
AssigneeNorthrup Grumman Corporation
InventorLawrence V. Puls
Life of this patent
Estimating the term…
Abstract
A system for removing contaminants from a gas in an exhaust stack. A cone structure having a plurality of stacked cones is located in the exhaust stack in combination with a spray system including a water input pipe with a misting spray nozzle. Air or gas containing contaminants flows in the exhaust stack. The water from the nozzle system mixes with the air or gas to form a mist. The cones of the cone structure are stacked and held by rods to create slight changes in the flow direction of the mist. The flow of the gases drive the condensed liquid to the outside perimeter of the cones and to the inner wall of the stack or chimney where it is collected in a trough and removed.
Claims7
Apparatus for removing contaminants from contaminated gas flowing in a wall enclosed vertical exhaust stack structure comprising:
- a vertical exhaust stack having a vertically rising stream of contaminated gas within the stack,
- a spray system located in the enclosed vertical exhaust stack for producing a mist of liquid droplets in the exhaust stack wherein the liquid droplets mix with and saturate the contaminated gas flowing in the exhaust stack, wherein the contaminants of the gas are contained in the liquid droplets;
- a plurality of cones, each comprising conically shaped open mesh material located with the apex of cones pointed down and the open ends of the cones disposed vertically up in the vertical exhaust stack in the path of the liquid droplets mixed with the gas flowing in the exhaust stack for collecting the liquid droplets impinging on the conically shaped mesh material and wherein the gas flows through the openings of the conically shaped mesh material of the plurality of cones wherein the friction of the gas on the droplets cause said liquid droplets impinged on and collected on the conically shaped mesh material to flow up on the surface of said mesh material toward the open ends of the cones and to the walls of the vertical enclosed stack structure wherein the liquid droplets flow down the walls of the exhaust stack.
Dependencies are inferred from the claim text.