本申请提供了一种电磁搅拌结晶器，包括结晶器主体、多个绝缘密封装置、电磁线圈以及冷却装置。结晶器主体具有进液口。结晶器主体靠近进液口一侧的侧壁沿圆周方向设置有多个切缝。多个绝缘密封装置安装于结晶器主体。每一个绝缘密封装置对应一个切缝，绝缘密封装置用于对切缝进行密封。电磁线圈缠绕设置于结晶器主体靠近进液口一侧的侧壁，且多个绝缘密封装置设置于电磁线圈与侧壁之间。冷却装置套设于结晶器主体的外侧。电磁线圈设置于冷却装置内。本申请提供了一种电子束冷床炉。本申请通过电磁线圈、绝缘密封装置以及切缝的配合，不仅能够降低涡流的影响，提高电磁场穿透效率，还能够使得结晶器主体内的金属液分布均匀，从而提高表面质量。

The invention provides an electromagnetic stirring crystallizer which comprises a crystallizer body, multiple insulation sealing devices, an electromagnetic coil and a cooling device. The crystallizerbody is provided with a liquid inlet. Multiple kerfs are formed in the side wall of the side, close to the liquid inlet, of the crystallizer body in the circumferential direction. The multiple insulation sealing devices are mounted on the crystallizer body. Each insulation sealing device corresponds to one kerf, and the insulation sealing devices are used for sealing the kerfs. The electromagnetic coil is wound around the side wall of the side, close to the liquid inlet, of the crystallizer body, and the multiple insulation sealing devices are arranged between the electromagnetic coil and theside wall. The cooling device sleeves the outer side of the crystallizer body. The electromagnetic coil is arranged in the cooling device. The invention provides an electronic beam cold hearth. According to the electromagnetic stirring crystallizer and the electronic beam cold hearth, by means of the cooperation of the electromagnetic coil, the insulation sealing devices and the kerfs, the influence of vortex can be reduced, the penetrating efficiency of an electromagnetic field can be improved, molten metal in the crystallizer body can be distributed evenly, and therefore the surface qualityis improved.