Electromagnetic energy grain refinement equipment for semi-continuous slab ingot casting

The invention relates to electromagnetic energy grain refining equipment for semi-continuous slab ingot casting, which comprises an electromagnetic energy device, a heat dissipation device, a follow-up device and a power supply module, and is characterized in that the electromagnetic energy device is arranged above a semi-continuous slab ingot casting launder and comprises an n-shaped iron core, a coil and a protective cover; the coils are respectively wound on two downward extending magnetic poles of the n-shaped iron core, and the protective cover covers the outer sides of the n-shaped iron core and the coils; the heat dissipation device dissipates heat of the electromagnetic energy device, and the power module is connected with the coil to supply power to the electromagnetic energy device. The electromagnetic energy device is installed on the follow-up device, and the follow-up device drives the electromagnetic energy device to move up and down along with fluctuation of the liquid level of the launder. The