Screen cylinder flow control device for filtering paper pulp

The utility model relates to the technical field of paper production, in particular to a screen cylinder flow control device for filtering paper pulp, which comprises a barrel body and a screen cylinder fixedly arranged in the barrel body, the upper end of the barrel body is fixedly communicated with a feed pipe in the screen cylinder, the lower end of the side wall of the barrel body is fixedly communicated with a discharge pipe, and the upper end of the barrel body is fixedly connected with a shell. The upper end of the feeding pipe penetrates to the outside of the shell, a motor is fixedly arranged at the upper end of the barrel, the output end of the motor penetrates to the inside of the barrel and is fixedly connected with a rotating shaft, a plurality of blades are fixedly connected to the shaft wall of the rotating shaft, through holes are symmetrically formed in the positions, located in the screen drum, of the top of the barrel, and a flow control mechanism is fixedly arranged in the shell. According