Device for removing fine-grained or dust-like solids from a container

Device for removing fine-grained or dust-like solids from a container that is to be pressurized or is pressurized, whereby the container is equipped with a double-walled discharge cone (1) or funnel, having at least one gas feed (8) into the ring chamber (6) formed by the double-walled funnel, whereby the funnel wall (7) that faces the funnel interior is provided with gas exit openings (4), wherein

• the gas exit openings (4) are larger than the largest particles of the solid to be removed, and wherein
• the gas exit openings (4) are provided with a pipe connector or gas feed channel (4a) that projects into the interior of the ring chamber (6) and has at least one angle with an imaginary horizontal plane, and wherein
• the gas feed channel (4a) is part of a retention device (12) for preventing solid from trickling into the ring chamber (6), and wherein
• injection of the gas into the ring chamber (6) at the lower active floor (9, 9′) takes place in a tangential direction that leads to an eddy-like flow in the ring chamber (6) and to swirling up of any solid particles that might be situated there.