| 摘要 |
<p>The enclosure (1) containing the granular material comprises a stand or reserve of granular material mounted above the mass of filter material forming the filter column and opening into the latter, this stand, provided in the upper part of the enclosure, consisting of a plurality of cells (2) formed by a partitioning system (3). In order to fill the enclosure and the granule reserve, the enclosure (1) is provided with a filling opening (5) provided at the opposite end to the granule reserve. <IMAGE></p> |
