DRUM-TYPE MILL Russian patent published in 2004 - IPC

FIELD: production of dispersion powders in cryogenic medium, in particular, liquid nitrogen.

SUBSTANCE: drum-type mill has heat-insulated drum composed of cylinder and cone, which are hermetically sealed and detachably connected with one another along perimeters with their hollow ends, and shaft connected to other end of cylinder. Smaller end of cone is made in the form of membrane, which is connected thereto along perimeter. Mill is further provided with bearing unit, where cylinder is located, and four bearings, with two lower bearings being immovable and two upper bearings being movable. Milling body actuators are arranged on cylinder inner surface. Pipeline serves as tract for supplying of cryogen and branch pipe serves as tract for conveyance of evaporated cryogen. Both tracts are arranged in shaft cavity. Vessel for ready product is made in the form of flexible container located in rigid housing. Platform is connected to rotary frame through vibration isolators.

EFFECT: increased efficiency in milling of raw material.

2 cl, 1 dwg