Anaerobic granular sludge bed biological reaction device

The utility model discloses an anaerobic granular sludge bed biological reaction device which comprises a tank body, two screw rods are rotationally arranged between the inner surfaces of two opposite sides of the tank body, the outer surfaces of the two screw rods are in threaded connection with a movable frame, a stirring mechanism is arranged on the outer surface of the movable frame, and a transmission mechanism is arranged between the two screw rods. The two screw rods simultaneously drive the moving frame to move, so that the moving frame can drive the stirring shafts to move in the tank body, and when the moving frame moves, the first gear and the second gear which are fixedly mounted at the top ends of the two stirring shafts rotate under the meshing action of the clamping teeth; the stirring rods fixedly mounted on the outer surface of the stirring shaft can stir anaerobic granular sludge raw materials in the tank body, so that the anaerobic granular sludge raw materials are mixed more uniformly, and