Device for completely utilizing feed coal in circulating fluidized bed

The utility model discloses a device for completely utilizing feed coal in a circulating fluidized bed. The device comprises a crusher (1), a screening machine (2), a powder forming machine (3), a coal bunker (4), a gasification furnace (5) and a cyclone separator (6). Wherein one end of the screening machine (2) is connected with the crusher (1), and the other end is connected with the coal bunker (4). The powder forming machine (3) is respectively connected with the screening machine (2) and the coal bunker (4). The gasification furnace (5) is connected with the coal bunker (4), and the cyclone separator (6) is connected with the gasification furnace (5). In the coal gasification process of the circulating fluidized bed, raw material coal with the particle size d being more than or equal to 10 mm and less than or equal to 50 mm is adopted, and the advantages of high gasification efficiency, high carbon conversion rate, high crude synthesis gas quality and the like are achieved. 一种实现原料煤在循环流化床中全部利用的装置，包括粉碎机（1