Fluidized bed for preparing pellet type composition for filling lame impediment capsules

The utility model relates to the technical field of fluidized beds, in particular to a fluidized bed for preparing a pellet type composition for filling lame impediment capsules, which comprises a fluidization cylinder, an air distribution plate for dividing an inner cavity of the fluidization cylinder into an upper cavity and a lower cavity is arranged in the fluidization cylinder, and two sides of the air distribution plate are rotatably connected with the fluidization cylinder through a hinge shaft. Wherein one hinge shaft extends to the outside of the fluidization cylinder and is vertically connected with a handle, a lock rod is arranged at the end of the handle in a penetrating mode, one end of the lock rod is of a spherical structure, a columnar lock head is arranged at the other end of the lock rod, a spring is arranged on the lock rod between the lock head and the handle in a sleeved mode, and two lock holes corresponding to the lock head are formed in the fluidization cylinder on the upper side and t