Slag flushing water flash evaporation cooling heat recovery system

The invention discloses a slag flushing water flash evaporation cooling heat recovery system, which belongs to the technical field of smelting, and is characterized by comprising a slag flushing water tank, a flash evaporation tank body, a circulating pump, a vacuum pump, a heat exchanger, a washing tower and a heat recovery water container, the slag flushing water tank is used for collecting slag flushing water and water slag; a flash evaporation cavity is formed in the flash evaporation tank body, the flash evaporation tank body is provided with a circulating water inlet hole, a circulating water outlet hole and a flash evaporation steam hole, and the circulating water inlet hole and the circulating water outlet hole are communicated with the slag flushing water tank; the circulating pump is communicated with the flash evaporation cavity and the slag flushing water tank; the vacuum pump is communicated with the flash evaporation cavity; the heat exchanger is provided with a steam inlet, a steam outlet, a ci