Lignite drying with a heat recovery circuit

摘要

P15/148-0 The invention relates to a lignite fired steam power plant comprising a water/steam power cycle, a dryer system for drying lignite coal and a heat recovery system for 5 recovering thermal energy from the dryer system. The heat recovery system vaporises condensate against a vapour line of the dryer steam and then compresses the vaporised condensate for use to preheat either or both combustion air or condensate of the water/ steam power cycle. 0 Fig 1 1 /3 P15/148-0 35 16 85 83 31 40 38 FIG. 1 35 95 16 85 83 31