Device for recovering accumulated gas power of circulating fluidized bed boiler

Provided is a circulating fluidized bed boiler accumulated gas power recovery device. At present, a CFB circulating fluidized bed boiler coal feeding system often causes the problems of serious coal accumulation in a boiler coal feeding seam due to system coal blockage and coal leakage, and the problems of large manpower consumption, long time, serious operation environment pollution and the like due to narrow site and only manual transfer. An accumulated gas force recovery device of a circulating fluidized bed boiler comprises a coal receiving hopper (1), the upper end of the coal receiving hopper is used for receiving coal, the other end of the coal receiving hopper is connected with a flange at one end of an isolation insertion plate door (2), the other end of the isolation insertion plate door is connected with a flange at one end of a gas mixing guide pipe (4), and a compressed air injection assembly (3) is arranged on the upper middle portion of the gas mixing guide pipe. As the kinetic energy of the ac