Smelting slag granulating system of flash furnace

The invention relates to the technical field of steel slag granulation, in particular to a flash furnace smelting slag granulation system which comprises a granulation chamber, a slag curtain control assembly is arranged in the granulation chamber, a granulation assembly is arranged at the bottom of the slag curtain control assembly, a discharging opening is formed in the bottom of a screening plate, and a ventilation pipeline is further arranged on the granulation chamber. The feeding opening is formed in the upper end of the granulation chamber and used for receiving the high-temperature copper slag; the elevator is arranged on one side of the screening plate; the scraper conveyer is arranged at the bottom of the discharging opening; the wastewater pool is arranged at the bottom of the granulation chamber; according to the device, the screening plate is arranged in the granulating chamber, and the material distributing roller and the second scraper plate are further arranged on the screening plate, when the