Gerald J Armstrong

US Patent:

6964699, Nov 15, 2005

Filed:

Jun 5, 2002

Appl. No.:

10/166275

Inventors:

Richard H. Carns - Byantown MD, US
Gerald Armstrong - Hughesville MD, US
Robert H. Rast - Nanjemoy MD, US
Dennis R. Mitchell - Brooking OR, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B01D047/00
B01D053/14

US Classification:

96361, 96363, 60264

Abstract:

A wet scrubber having a series of chambers for capturing and cooling exhaust gases generated during static test firing of rocket motors. Exhaust gas enters an inlet to a first chamber and is cooled and slowed by a spray solution. HCL gas is condensed and absorbed by the spray solution and precipitates to a liquid slurry at the bottom of the device. The remaining exhaust products enter a demister chamber where nozzles continue to spray the gasses as they pass upward and through a mesh-style demister at the top of the vessel. The demister filters liquid and solid waste particles from the gas stream, and the clean, dry gases are accelerated through a centrifugal fan into the atmosphere. A deflector is positioned within the inlet to the first chamber for containing parts in the event of a motor mal-function.