一种伸入式水口、水口制备方法和控制方法
By employing technologies such as a double slag line design, a conical inner cavity, and air pipe monitoring, the problem of easy damage to the slag line section of the extended nozzle has been solved, thereby improving the corrosion resistance and stability of the nozzle and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUNAN VALIN LIANYUAN IRON & STEEL CO LTD
- Filing Date
- 2025-10-21
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the slag line section of the extended nozzle is prone to chemical reactions and erosion due to long-term contact with protective slag, resulting in a shortened service life. Furthermore, the single slag line design is difficult to effectively prevent concentrated erosion in the slag line area.
The design employs a dual slag line system. The first slag line is located at the interface between the molten steel and the protective slag, while the second slag line is located within the molten steel. The distance between the two lines is 30mm-80mm. The inner cavity is designed with a conical structure, and the erosion of the first slag line is monitored through a gas tube. Combined with isostatic pressing and the use of zirconium oxide and alumina as partitioned materials, the system achieves step-by-step protection and monitoring of the slag lines.
It extended the service life of the water inlet, reduced local erosion of the slag line, improved the corrosion resistance and operational stability of the water inlet, and avoided sudden failure of the water inlet through the gradual replacement of the slag line.
Smart Images
Figure CN121315243B_ABST