Page 8 - ASD_Extraction and filtration technology for dust and smoke
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Individual


            Pollutant Capturing.







            Critical: Proximity, Geometry


            Quality of pollutant collection is the linchpin   consumption, to collect the corresponding
            of extraction and filtration technology.          amount of particles. In general, the type
            In particular, closest proximity to the source    of capturing element used must best suit
            of pollution is of critical importance:           the selective extraction situation at each
            Doubling the distance, for example means a        respective work place. This is a question of
            fourfold increase in required suction capacity    both geometry and dimensions.
            and an exponential increase in energy








                   4,000 m /h                                  Raw gas     Extraction Filter     Efficiency
                           3
                                                               emission    rate        perfor-   rate
                                                                                       mance
                                                                                                 Remaining
                                                                                                 pollutants



                                                               100%        95%         99%





                                          1,000 m /h           A                                     94%
                                                  3


                                                                                                     6%

                               50 cm
                                                               100%        75%         99%
                                                    25 cm

                                                               b                                     74%



                                                          Quelle: VDMA                               26%    Quelle: VDMA




            Impact of the distance of the capturing element   Impact of the extraction rate on efficiency
            on the required air capacity










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