A DEVICE FOR UNLOADING BULK MATERIAL FROM RESERVOIRS

摘要

A device is provided for unloading bulk materials from reservoirs by the use of the energy of a compressed gaseous medium. The device comprises elastic sloped walls disposed in the reservoir at the bottom thereof, the walls having a plurality of spaced passages therein which are connected to a system for the intermittent supply of a gaseous medium into the passages for imparting vibratory motion to the sloped walls, i.e., movement towards and away from the walls of the reservoir. Between the passages in the elastic walls there are provided porous sections which permit the flow of compressed gaseous medium therethrough and into the reservoir to impart fluidity to the bulk material therein.