| 摘要 |
<p>Bulk particulate material handling apparatus having a pressure vessel (10) with a sealable main inlet (12). Fluidizing means in the bottom of the vessel (10) comprises plenum chamber (14) defined by a perforated plate (16) covered by a gas permeable membrane (18). High pressure air is introduced through inlet (20) and the air fluidizes the material when outlet line (22) is opened. The pressure vessel (10) is surrounded by a storage vessel (30) which can be square or rectangular in cross-section and need not be capable of withstanding high pressures. The storage vessel (30) has main inlet (32) and plenum chamber (34) defined by perforated plate (36) covered by membrane (38). A transfer line (50) connects the storage vessel (30) to the pressure vessel (10) so that pressure vessel (10) can be discharged conventionally. Using a low pressure differential between the storage and pressure vessels, the pressure vessel (10) can be refilled from the storage vessel (30) through the transfer line (50).</p> |
