Slab continuous casting machine fan-shaped section opening adjusting device and adjusting method thereof

The invention discloses a slab continuous casting machine fan-shaped section opening adjusting device and an adjusting method thereof.The adjusting device comprises a fan-shaped section lower rack, a fan-shaped section upper frame and a middle adjusting gasket arranged between the fan-shaped section lower rack and the fan-shaped section upper frame and used for adjusting openings of the fan-shaped section lower rack and the fan-shaped section upper frame and further comprises a lower fixing block and an upper cover with a hollow lower end opening. The lower fixing block is connected with the fan-shaped section lower rack, the upper cover is connected with the fan-shaped section upper frame, the top of the lower fixing block is sleeved with the upper cover, and the middle adjusting gasket is arranged between the lower fixing block and the upper cover and located in the upper cover. By adjusting the shape of the part, displacement of the gasket due to extrusion is avoided, and opening change caused by falling o