Filtering particulate materials in continuous emission...

Details Filtering particulate materials in continuous emission... Filtering particulate materials in continuous emission...

2006-03-31

2009-08-04

Smith, Duane (Department: 1797)

Gas separation: processes

With control responsive to sensed condition

Gas flow rate sensed

C095S279000, C095S286000, C096S413000, C073S863230, C073S863250, C073S863310, C073S863240, C055S523000, C055S302000

Reexamination Certificate

active

07569093

ABSTRACT:
A filtering system for monitoring fluid emissions from a process includes a plurality of filter assembly sections arranged in a parallel fluid flow manner with respect to each other so as to selectively receive a sample fluid (e.g., a sample gas) entering at an inlet of the system. Each filter assembly section includes a filter unit to filter particulate materials from a fluid flowing through the filter, first and second valves disposed at upstream and downstream locations of the filter unit, and a blowback flow path configured to selectively direct a cleaning fluid through the filter unit in a direction that opposes a direction in which the sample fluid flows through the filter unit. Each filter assembly section can be selectively isolated from other portions of the system so as to prevent the sample fluid from flowing through the filter assembly section while allowing a cleaning fluid to be delivered through the blowback flow path of the filter assembly section.

REFERENCES:
patent: 4090392 (1978-05-01), Smith et al.
patent: 4341124 (1982-07-01), Rodgers et al.
patent: 4894074 (1990-01-01), Mizrah et al.
patent: 4912985 (1990-04-01), Daum et al.
patent: 5417728 (1995-05-01), Royle
patent: 2004/0261375 (2004-12-01), Scheuch

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