METHOD FOR OPERATING A STEAM TURBINE POWER PLANT AND ALSO DEVICE FOR GENERATING STEAM

摘要

Disclosed is a method for operating a steam turbine power plant, encompassing at least one steam generator that is heated using a solid granular combustible, e.g. lignite. In said method, the combustible is first indirectly dried in a fluidized bed drier that is heated at least in part by steam from the water-steam circuit of the steam generator. Said method is characterized in that the temperature in the drier is regulated in two stages in accordance with the humidity of the combustible; first, the temperature of the fluidized bed drier is regulated using the pressure of the heating steam, downstream of which the superheating temperature of the heating steam is regulated in accordance with the steam pressure.