PLANT FOR DRYING DISPERSED HIGH-MOISTURE MATERIALS Russian patent published in 2003 - IPC

FIELD: drying technique; heat treatment of dispersed high-moisture materials; food- processing, chemical and other industries. SUBSTANCE: proposed plant includes fluidized bed chamber with shaft- type final drying unit built in it; it is also provided with gas distributing grates arranged in stepwise manner and gas supply boxes located under them; supporting grates are mounted above gas distributing grates in parallel relative to them; one of supporting grates is vibrating. Novelty of invention consists in availability of perforated vertical partition and spring-loaded inclined insert built additionally in fluidized bed chamber. Inclined insert is articulated for rotation at angle exceeding angle of slope of repose of material; it is located on lower edge above fixed supporting grate; heat-transfer agent supply passage is connected to additional circulating box. Spring-loaded inclined damper and vertical perforated partition make it possible to perform fraction-by-fraction treatment of various materials. EFFECT: enhanced economical efficiency of drying process. 2 dwg