| 摘要 |
A filter structure including a circular housing and annularly disposed individual filter chambers each containing a layer of bulk filter material with a centrally located waste channel having openings leading from each of the chambers above the surface of the filter material, an outer jet for each chamber for directing a cleaning agent along the top of the filter material, a separate supply for fresh filter material at the top of each chamber, clean gas discharge conduits located below the individual filter chambers and a cleaning gas jet connected to each of the clean gas discharge conduits leading downwardly from each of the chambers. |
