FLUIDISED BED DRIER AND DRYING METHOD OF WET RAW MATERIAL USING FLUIDISED BED DRIER Russian patent published in 2009 - IPC F26B3/08 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to fluidised bed drier meant for drying wet raw material, such as coal supplied to coke furnace, and to drying method of wet rough pulverised coal using fluidised bed drier. Fluidised bed drier for supplying wet material through a feed chute and blowing down high-temperature gas from under gas-distributing plate used as heating gas and fluidising gas so that fluidised bed can be formed on gas-distributing plate for drying wet raw material consists of gas-blowing atomiser located in the area of external wall between feed chute bottom and fluidised bed for dispersing wet raw material flow, which falls from feed chute; at that injection rate of heating and fluidising gas flow from under gas-distributing plate directly to the area under feed chute is higher than rate of flow injected into other areas from under gas-distributing plate. By using such device, wet raw material supplied from feed chute does not fall intensively directly to the area under feed chute.

EFFECT: preventing gas-distributing plate from being blocked.

4 cl, 11 dwg