ROTARY-TYPE DRIER FOR GRAIN Russian patent published in 1998 - IPC

FIELD: agricultural machinery and equipment. SUBSTANCE: this rotary-type drier allows for increasing efficiency of grain drying process, improving operating and servicing conditions, it ensures possibility of checking and control of grain drying process due to introduction of agitator which is made up of movable bar and stationary radial bar carrying multitier scrapers which are pivotally secured on each radial bar by means of tie-rods. Angle of installing scrapers from center of rotary table to periphery of rotary table is changing from α₁ (for example 20 deg.) to α₂ (for example α₂= α₁/2),). Stationary radial bar is provided with antifriction bearings and is attached by means of these bearings to central support. At other side stationary radial bar is rigidly connected with external guarding. Movable radial bar is provided with screw mechanism which allows for changing angle of installing agitator scrapers. Rotary platform which rotates in horizontal plane is held by side supports and central support. Central support is provided with device which allows to exercise strict centering of rotary table in shell. Perforated bottom of rotary table is installed on supporting ring which at the same time functions as driven sprocket in drive unit of rotary table. This driven sprocket is connected by special chain transmission with driving sprocket which is installed in drive unit. Lower surface of supporting ring is in contact with rollers of side supports. External guarding of drier is installed in recess of foundation and is embedded in high-melting elastic material so as to prevent leakage of heat-carrier medium. EFFECT: higher efficiency. 3 dwg