| 摘要 |
A method and an apparatus for extracting scrubber liquid with a removal of predominantly solid impurities, wherein a gas stream containing such impurities is cleaned in a scrubber by means of a recirculated scrubber liquid supplied via cleaning ramps (2), with spray nozzles (3), at the top of the scrubber. Surplus liquid together with captured impurities are drained from the scrubber via a drainage outlet (9) with a drainage valve (10). The scrubber liquid together with the impurities captured from the gas are collected in a collecting device (11) and taken down through a passage (12) into the bottom area of the scrubber, below a separation device (13), through which the scrubber liquid is made to rise to a higher extraction level (6) for recirculation. The separation device (13) is cleansed by a back-flow of scrubber liquid towards the drainage outlet (9) by periodical opening of the drainage valve (10). |
