Container arranged within a stacking frame

A tubular container for bulk materials, preferably finally comminuted powders, rotatable about its longitudinal axis and supported in a stacking frame, comprising:

• a rotary drive for rotating the container;
• a pair of quadrilateral roller frames each having four rollers arranged so that one roller is in each corner of each of the frames, the roller frames being arranged so as to form a primary structural component of the stacking frame;
• a container outer peripheral surface;
• a container inner peripheral surface;
• two roller rings for the rollers fastened on the outer peripheral surface each of the roller rings being arranged so as to coact with the four rollers in one of the roller frames;
• a container emptying bottom having a central aperture therein;
• an emptying system combined with the emptying bottom and including a passage through the central aperture of the emptying bottom the emptying system including one of a suction nozzle and paddle arrangement combined with a torque support;
• a spiral worm fastened to the inner peripheral surface so as to transport the bulk material to the emptying system during rotation of the container;
• at least one filling stub provided at the outer peripheral surface;
• and
• another container bottom opposite to the emptying system formed as a pressure-equalization base with gas passages of a pressure-equalization system located at an outer edge thereof.