FERTILIZER GRANULATING UNIT Russian patent published in 2003 - IPC

FIELD: farming and forestry; devices for granulation of fertilizers from industrial wastes, for example defects of sugar production or mixture of defect with black soil washed off root crops of sugar beet. SUBSTANCE: proposed unit includes cylindrical reservoir provided with pipe unions for discharge of finished product and delivery of heat-transfer agent through injectors. Said reservoir is divided into loading chamber provided with worm feeder and drying chamber by means of classifier which is made in form of bimetallic screen with flat knife mounted under it. Bimetallic screen is made in form of truncated cone with larger base directed towards flat knife. EFFECT: avoidance of choking of screen and sticking of material on surface of flat knife. 2 dwg