Apparatus and method for removing particulate deposits from high temperature filters
A combustion of a fuel-air mixture is used to provide a high-temperature and high-pressure pulse of gaseous combustion products for the back-flush cleaning of ceramic filter elements contained in a barrier filter system and utilized to separate particulates from particulate-laden process gases at high temperature and high pressure. The volume of gaseous combustion products provided by the combustion of the fuel-air mixture is preferably divided into a plurality of streams each passing through a sonic orifice and conveyed to the open end of each filter element as a high pressure pulse which passes through the filter elements and dislodges dust cake supported on a surface of the filter element. 3 figs.
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 5167676; A
- Application Number:
- PPN: US 7-865146
- OSTI ID:
- 7066755
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010800 -- Coal
Lignite
& Peat-- Waste Management
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
CLEANING
COMBUSTORS
DESIGN
ELECTRONIC EQUIPMENT
EQUIPMENT
FILTERS
FUNCTION GENERATORS
PARTICLES
PARTICULATES
PULSE COMBUSTORS
PULSE GENERATORS
PULSE TECHNIQUES
REMOVAL