Baoshan Iron & Steel Co., Ltd.

Hongquan Wen

Chao Hu

Xiaoli Jin

Yueming Zhou

Chunfeng Wang

Shunhua Xiang

Xianjiu Zhao

Cunyou Wu

An electromagnetic stirring device and a method for a secondary cooling zone during slab continuous casting. The device has a main body, an opening adjustment assembly, and a secondary cooling assembly. The main body has a protection housing (), a phase sequence control assembly, an iron core () and an electromagnetic coil () for carrying out variable-direction electromagnetic stirring on a molten steel by a three-phase current phase sequence transformation. The opening adjustment assembly has an air cylinder (), a fixed base (), a movable joint shaft () and a silicon steel sheet group insert () for adjusting online opening degree of the closed annular iron core by a movable joint structure. The secondary cooling assembly has a cooling water inlet () and a cooling water nozzle () for cooling the electromagnetic coil and spraying cooling water to a surface of a cast slab ().

Electromagnetic stirring device and method for secondary cooling zone during slab continuous casting

A hot rolled slab impact type mechanical scale removal device comprises a front cooling water nozzle group, an impact type scale removal gear roller group, a roller cooling device and a cleaning water nozzle group. A slab moves on a slab roller table. The front cooling water nozzle group, the impact type scale removal gear roller group and the cleaning water nozzle group are arranged in sequence along the movement direction of the slab. The impact type scale removal gear roller group is arranged on a support seat. The cooling water nozzle of the roller cooling device is arranged corresponding to the impact type scale removal gear roller group. According to the scale removal device, the oxide skins can be clearly removed, the temperature of the continuous casting slabs can be reduced and the hot rolling quality is improved.

Hot rolled slab impact type mechanical scale removal device

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Shanghai, China

Hongquan Wen