The invention relates to the technical field of screening, and discloses an
iron ore powder and antifreezing agent mixed screening device which comprises a rack, and the surface where the top of the rack is located is inclined; a first bearing seat is mounted on the rack, a roller with a rubber wheel surface is rotationally connected to the first bearing seat, a universal
coupling is connected to the shaft end of the roller, a shaft rod is connected to the other end of the universal
coupling, a speed
reducer arranged on a second supporting seat is connected to the free end of the shaft rod, and the second supporting seat is connected with the rack; the speed
reducer is driven by a first motor arranged on the rack, and the first motor and the speed
reducer transmit power through belt transmission; a drum screen
assembly used for improving the mixing uniformity of the
iron ore powder and the anti-freezing agent is connected to the rolling wheel in a rolling mode, and
mixed materials are discharged from screen holes of the drum screen
assembly. Mixing, screening, conveying and cleaning are integrated, mixing uniformity is high, screening efficiency is excellent, operation and maintenance are convenient and fast, and the requirement for mixing and screening of
iron ore powder and an anti-freezing agent is met.