Ice-melting unloading device for engineering structure installation

The invention provides an engineering structure installation ice melting unloading device which comprises an unloader, a freezing device and a heating device, the unloader comprises a container for containing water and a floater, an opening is formed in the top of the container, the lower end of the floater is located on the water surface in the container, the upper end of the floater extends out of the opening in the top of the container, and a drainage pipe is arranged on the container; the freezing device comprises a refrigerating device and a freezing pipe, the freezing pipe extends into the container, the refrigerating device provides cooling capacity for water in the container through the freezing pipe and converts the water in the container into ice, so that the floater floats upwards to achieve supporting, the container is arranged above the heating device, and the heating device can heat the container. The ice in the container is melted, the melted water flows out through the drainage pipe, the ice b