PURPOSE: To use granular bed filters with which easy removal, maintenance and repacking are assured and to make it possible to execute purification of gas under a positive pressure by stacking these granular bed filters in a pressure vessel.
CONSTITUTION: Each of filter shells 2 having inlet ports 7 and outlet ports 13 for bulk material comprises the plural granular bed filters 8 arriving at a raw gas inlet duct 5 and a refined gas outlet port 6 connected to a common outlet duct 6a. The granular bed filters 8 are stacked in the pressure vessel 2. Namely, the designing of the apparatus for executing the purification of the gas under the positive pressure is made possible by using the granular bed filter with which the easy removal, maintenance and repacking are assured.
HARUTOMUUTO HETSUDERERU
DEIITAA BIKUTAA
RAINERU DEYURUFUERUTO
BERUNARUTO SHIYUREPERU
HARARUTO HOTSUFUMAN
LE RUKOOLES R & GAS GMBH
HOECHST AG
KLOECKNER HUMBOLDT DEUTZ AG