On the condition that dust concentration from precipitator outlet is treated lower than 15mg/Nm3, flue gas cooling and residual heat recovery unit at absorber inlet (optional), improved tray structure and high efficient demister will work as the main components in our integrated solution.
◆Flue gas cooler before absorber tower(recover the waste heat at the same time): fluoroplastic tubes filling with cooling water installed in the flue,
a) cool down flue gas lower than dew-point temperature in the partial space around heat exchange tube, make part of vapor condense into water, so that liquid particles can wrap solid particles and then adhere on the vertically installed heat exchange tubes.When the liquid with particles aggregates into water film, it will flow down slowly and be cleaned by regularly rinsing.
b) tube diaphragm has mechanical interception effect for liquid drops with particles.
◆High efficient demister: limit drop size (D99.5)~15μm means most of slurry droplets could be captured and it would collaboratively ensure the emission concentration of dust is equal to or lower than 5 mg/Nm3.
Main technical specification:
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