Fluidised bed technology for small heating powers with fraction separator in the contact path

摘要

In order to achieve a maximum environmental compatibility as regards SO2 loadings, it is proposed according to the invention to connect, after the fluidised bed boiler (4), a fraction separator (12) which separates the additive, preferably lime, ground to suit the fraction separator (12), the ash in the filter (10) being allowed to pass through a perforated metal sheet arrangement in the perforated pack filter (12), and the lime with the uncracked coal particles (13) being removed and returned to the fluidised bed, preferably via the charging device (3). IMAGE