GRANULATOR OF FERTILIZERS Russian patent published in 1998 - IPC

FIELD: chemical industry. SUBSTANCE: granulator has inclined belt conveyer, covering of upper working branch of belt, and loading and unloading devices. Covering of upper working branch of belt has side walls and flat cover in which melt sprayers are positioned. Loading device is arranged in upper part of conveyer. It has series-connected cyclone separator, sluice feeder and shelved distributor. Unloading device is made as vertical vacuum material duct. Lower part of the latter houses vibration screen, two discharge connecting pipes, and air take-up window. In upper part material duct is coupled to cyclone separator. Middle part of material duct is adjacent to lower part of inclined belt conveyer. In this part material duct is provided with discharge window and connecting pipes for feeding of recycle and taking up of air. These operations may be controlled. EFFECT: favorable conditions for granulation in thin layer, on flat developed surface. 2 dwg