防止连铸二冷喷嘴堵塞的系统及方法
By introducing precise flushing triggering, pressure closed-loop control, and layered flushing strategies into the continuous casting secondary cooling system, combined with an anomaly tolerance mechanism, the technical problem of nozzle clogging in continuous casting secondary cooling was solved, achieving efficient and reliable nozzle anti-clogging control, improving billet quality and continuous casting machine operating rate, and reducing modification costs and resource consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CISDI ENGINEERING CO LTD
- Filing Date
- 2026-05-08
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies for preventing blockage of secondary cooling nozzles in continuous casting suffer from problems such as inaccurate judgment of flushing timing, unreasonable flushing modes, lack of pressure control, dispersed flushing pressure in multi-loop systems, lack of graded cleaning logic, and insufficient fault tolerance. These issues result in incomplete flushing, low reliability, high modification costs, poor adaptability, and an inability to effectively remove stubborn impurities that have already adhered to the surface.
Employing a precise flushing trigger mechanism, closed-loop pressure control, a layered flushing strategy combining zoned and independent loop flushing, and an anomaly tolerance mechanism, the system achieves fully automated control through tail billet position detection, a booster pump system, and a PLC control system. It is divided into two levels: zoned synchronous preliminary flushing and independent loop high-pressure flushing. Combined with flow monitoring and anomaly tolerance handling, it ensures that each nozzle receives sufficient and concentrated flushing pressure.
It achieves efficient, reliable, and low-cost nozzle anti-clogging control, significantly improving billet quality and continuous casting machine operating rate, reducing the labor intensity of workers, and is highly adaptable to various types of continuous casting machines. It saves energy and water, and reduces downtime and resource waste caused by nozzle clogging.
Smart Images
Figure CN122400533A_ABST