粗轧板坯自动转钢系统研究与应用

宽厚板生产过程中，其粗轧工艺需控制交叉的锥形辊实现板坯长宽方向的对调，该过程严重依赖人工操作，节奏无法有效控制，制约生产线智能化改造进程。结合视觉检测和自动控制技术设计的粗轧板坯自动转钢系统可有效解决该问题，在粗轧机出入口分别安装视频监控相机，捕捉转钢辊道区域上板坯的状态，利用改进的包含去雾模块的PIDNet(proportional-integral-derivative network)模型提取板坯前景轮廓，通过组合式角度度量方法实时跟踪板坯旋转角度。过程中融合安全限位、位置优选、速度调控、过转修正等策略共同优化转钢控制，保证转钢的安全稳定，自主学习人工经验提升转钢效率。应用结果表明，系统可准确测量板坯角度并实现自动转钢功能，能够替代人工操作，节省能耗，实现智能化生产的目的。

Research and application of automatic steel transfer system for rough rolling billets

In the production process of wide and thick plates, the rough rolling process requires the control of intersecting conical rollers to achieve the adjustment of slab length and width direction. This process heavily relies on manual operation, and the rhythm cannot be effectively controlled, which hinders the intelligent transformation process of the production line. The automatic steel transfer system for rough rolling slab, designed by combining visual inspection and automatic control technology, can effectively solve this problem. Video surveillance cameras are installed at the entrance and exit of the rough rolling mill to capture the status of the slab in the steel transfer roller area. The PIDNet model with an improved defogging module is used to extract the foreground contour of the slab, and the slab rotation angle is tracked in real time through a combination angle measurement method. During the process, strategies such as safety limit, position optimization, speed regulation, and over rotation correction are integrated to jointly optimize the control of the steel conversion process, ensuring the stability and safety of the steel conversion. Autonomous learning of manual experience improves the efficiency of steel conversion. The application results show that the system can accurately measure the angle of the slab and achieve automatic steel conversion function, which can replace manual operation, save energy consumption, and achieve the goal of intelligent production.