| 摘要 |
<p>The combustion (50) of a fuel-air mixture (52, 54) is used to provide a high-temperature and high-pressure pulse of gaseous combustion products (64, 66, 68) for the back-flush cleaning of ceramic filter elements (22, 24, 26) contained in a barrier filter system (18) and utilized to separate particulates from particulate-laden process gases at high temperature and high pressure. The volume of gaseous combustion products (64, 66, 68) provided by the combustion (50) of the fuel-air mixture (52, 54) is preferably divided into a plurality of streams (64, 66, 68) each passing through a sonic orifice (70) and conveyed to the open end (28) of each filter element as a high pressuse pulse which passes through the filter elements (22, 24, 26) and dislodges dust cake supported on a surface of the filter element.</p> |
