Accident post-shearing fault processing system and method and strip steel production line

The invention relates to a fault processing system and method after an accident shear and a strip steel production line, and belongs to the technical field of continuous casting and rolling of hot-rolled strip steel. The system comprises a waste temporary storage device, a steering device, a lifting device and a clamping device which are sequentially arranged at the downstream of the accident shear in the strip steel conveying direction, and a fixed heat preservation cover arranged above the waste temporary storage device; when the downstream of the accident shear breaks down, the accident shear cuts off the strip steel, the steering device and the clamping device are matched with the lifting device to lift the cut-off strip steel so as to drag away the fixed heat preservation cover, the accident shear cuts the continuously-produced upstream strip steel into blocks, and meanwhile a lifting frame of the waste temporary storage device descends so as to collect the cut-into-blocks strip steel. The stored waste m