| 摘要 |
An apparatus for removing fines from the bottom of a tank includes an extraction device having an internal chamber along with a vacuum arrangement which, when activated, lowers the pressure within the chamber. An inlet structure adjacent the bottom of the extraction device is adapted to be juxtaposed against fines accumulated on the bottom of the tank, the inlet device acting, when the vacuum is activated, to move fines toward the internal chamber by superimposing on the moving fines an inwardly convergent motion. A cable is provided for lowering the extraction device toward the bottom of the tank. The apparatus includes a distributor above the extraction device. The distributor defines a quiet zone above the device for separation of fines from the fluid. |
