ROTARY DRYER (VERSIONS) Russian patent published in 2011 - IPC F26B15/04 

FIELD: machine building.

SUBSTANCE: rotary dryer consists of frame surrounded with sealed jacket, wherein there is made a window for supply of drying agent, and of circular drying chamber with perforated bottom mounted on rollers. The dryer also consists of loading and unloading devices made in form of a screw, a shaft of which by one version is stepped with diameter of steps diminishing in the direction of dried mass transfer, while according to another version a pitch of screw surface increases in the same direction.

EFFECT: increased quality of drying and decreased losses of heat carrier.

2 cl, 4 dwg