ROLL EXTRUDER FOR PELLETISING POLYDISPERSE LOOSE MATERIALS Russian patent published in 2012 - IPC B30B11/18 B30B15/30 B08B3/02 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building and may be used for pelletising carbon-containing and other polydisperse loose materials to be used in metallurgy, etc. Proposed extruder comprises driven rolls with extruding cells, vertical distribution loading bin with screw feeder. Said screw is arranged at bin bottom, sideways and inclined nearby said rolls. Screw axis is directed toward roll pellet mix grip zone. Extruder is equipped with fluid or steam distributors allowing connection of appropriate lines. Distributor outlets are arranged along and parallel with working surfaces of rollers. Outlet axes are directed toward roller shaping surface located below rolls centers, outside of zone of finished pellets outflow.

EFFECT: higher efficiency and quality.

4 cl, 5 dwg, 1 ex