Heat preservation device of casting ladle

The utility model belongs to the technical field of casting equipment, and particularly relates to a casting ladle heat preservation device which comprises a shell and a heat preservation cover hinged to the shell, a heat preservation bin is divided into a plurality of sections by positioning plates in the shell, a heat preservation body is arranged in each section of the heat preservation bin, and the tops of the multiple positioning plates are in lap joint or clamped connection with a casting ladle body. The two sides of the casting ladle body are attached to the positioning plates, and the heat preservation body wraps the bottom and the side portions of the casting ladle body. The heat preservation cover is used for covering the top of the casting ladle body, the heat preservation cover is provided with a penetrating type feeding port, a discharging port of the casting ladle body is open and is in lap joint or clamping connection with the casting ladle body through the multiple positioning plates, the two