Filter material charging apparatus for filter assembly for radioactive contaminants

In combination a filter assembly for removal of radioactive contaminants in a gas stream including a housing having a fluid inlet and outlet and at least one filter bed being provided with adsorptive filter material therein in fluid communication with the fluid inlet and outlet, said at least one filter bed having spaced vertically extending foraminous sides and impervious ends for receiving adsorptive material therein, the upper portion of the spaced sides and ends defining an inlet for receiving said adsorptive material therein, an adsorptive charging apparatus for adding said adsorptive material to said housing comprising:

• a tank having a downwardly projecting lower portion terminating in an opening, said tank opening being in fluid communication with opposed first and second conduit means, said first conduit means being in flow communication with said inlet for receiving said adsorptive material therein, and said second conduit means coupling in fluid flow communication with a blower means to the tank opening, said first conduit means being spaced above said at least one filter bed a preselected distance, said first conduit means having one aperture therein disposed above said at least one filter bed, said at least one filter bed having baffle members along the top thereof, said baffle members being of inverted V-shaped cross section and positioned at an angle to horizontal of at least 30.degree., the apex of said baffle members being spaced from and aligned with the aperture in said first conduit means, the edges of said baffle members being aligned with the upper extreme edge of said foraminous sides, the edges of adjacent baffle members defining openings therein to receive filter material therethrough.