Dried lignite power plant utilizing waste heat recovery system

The present invention discloses a heat drying lignite power plant water recycling system including lignite drying systems for water and condensate recovery system. The lignite lignite drying water pumping system includes a coal bunker, electronic weighing coal feeder, crushing machine, rotary drum dryers, baghouse, surge bin and plant host system; the condensate recovery system includes a fan, condensate means, condensate pumps, reservoirs, recycled water buffer tank, circulation pumps and air-cooled heat sink. Advantage of the invention is that it can effectively solve the problem of water shortages in most parts of China; the total heat loss of the unit decreased, improve unit efficiency, reduce annual coal consumption of about 4.0g / kWh, power supply standard coal consumption decreased by about 2.3g / kWh; saving coal resources, reduce emissions of greenhouse gases CO2 and flue gas pollutants.