| 摘要 |
<p>A colunm filter using bundles of long fibers, said filter being provided with an upright cylindrical shell and the bundles of long fibers being arranged upright inside the shell with lower end portions thereof being fixed and upper end portions thereof being free-standing, characterized in that a plurality of holders for the respective bundles of long fibers, each of said holders being formed of an upper cap member and a lower hollow member communicating to each other, said upper cap member defining openings therethrough and said lower hollow member defining at least an axially-elongated opening through a side wall thereof and opening at both upper and lower ends thereof, are provided on a perforated plate arranged transversely in a lower interior part of the shell with the upper cap member being located above the perforated plate and the lower hollow member being positioned below the perforated plate; the holders cover all perforations of the perforated plate; and the lower end portion of each of the bundles of long fibers is fixed to a lower periphery of a side wall of the associated upper cap member.</p> |
