METHOD OF JOINT OPERATION OF POWER-GENERATING BOILER AND DRYING UNIT Russian patent published in 1995 - IPC

FIELD: generation of steam. SUBSTANCE: hot air after boiler air preheater is fed for combustion in furnace of drying unit; boiler waste gases are fed to drying chamber for cooling the combustion products; waste drying agent is fed from drying chamber to boiler furnace; at maximum flow rate of air through air preheater, supply of air to boiler furnace is effected through bypassing the air preheater; control of temperature of gases at the drying unit furnace outlet is effected through changing the supply of boiler waste gases to furnace. EFFECT: enhanced reliability. 1 dwg