Rust removal device for outer surface of steel structural member

The utility model relates to the technical field of steel structure processing, and discloses a steel structure component outer surface rust removal device which comprises a box body, the upper side of the box body is fixedly connected with a shot blasting machine, material holes are formed in the side walls of the left side and the right side of the box body, a conveying belt is installed outside the box body, the conveying belt penetrates through the box body through the material holes, and the conveying belt is connected with the shot blasting machine. And a screening mechanism is mounted in the box body. The screening mechanism (5) comprises two mounting plates (51) fixedly connected to the vertical inner wall of the box body (1), mounting holes (52) are formed in the two mounting plates (51), sliding rods (53) are movably connected into the two mounting holes (52) in a sleeved mode, the two ends of each sliding rod (53) extend out of the corresponding mounting hole (52), the upper ends of the two sliding