The utility model belongs to the technical field of steel
smelting, and particularly relates to a heat preservation cover for a
casting blank direct rolling process of a small square billet
continuous casting machine. Comprising a support, a roller way is installed on the support, a plurality of motors are arranged on one side of the roller way, a plurality of telescopic cylinders are hinged to the end, close to the motors, of the support, rib plates are hinged to the output ends of the telescopic cylinders, vertical supports are hinged to the middle positions of the rib plates, and an upper cover body is welded to the other ends of the rib plates; a plurality of lower covers are fixed to the positions, at the bottom end of the roller way, of the support, a plurality of
slag discharging openings are formed in the bottoms of the lower covers, a plurality of heavy hammer boxes and turning plates are welded to the bottoms of the
slag discharging openings through hinge pieces, the heavy hammer boxes are filled with heavy blocks, and the
slag discharging openings are covered with the turning plates. According to the utility model, the upper surface, the side surface and the lower surface of the roller
bed can be covered, so that the
temperature drop of a
casting blank on the roller
bed is prevented from being too large, the requirement of a direct rolling process on the temperature of the
casting blank is met, and meanwhile,
oxide scale falling from the casting blank can be automatically discharged.