Slab continuous casting crystallizer flow field control device and method

By arranging a variety of magnetic field flow control devices on the upper and lower parts of the continuous casting crystallizer, and dynamically adjusting the electromagnetic parameters with high-precision temperature detection, the flow field control problem under complex working conditions is solved, and the surface quality of the continuous casting billet is significantly improved.

CN119702987AActive Publication Date: 2025-03-28BAOSHAN IRON & STEEL CO LTD
8 Cites 0 Cited by

Patent Information

Application Number
CN202311260578.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-27
Publication Date
2025-03-28
Estimated Expiration
2043-09-27

AI Technical Summary

Technical Problem

The prior art is difficult to effectively control the flow field of continuous casting crystallizer under complex working conditions, resulting in problems such as deflection flow, liquid level fluctuations and excessive impact of steel flow, affecting the surface quality of continuous casting billets.

Method used

Using multi-magnetic field flow control technology, by arranging a traveling wave magnetic field agitator on the upper side of the wide surface of the crystallizer, a DC static magnetic field brake is arranged on the lower side, and a high-precision temperature detection point is set on the copper plate of the narrow-side crystallizer to detect the flow state of the steel in real time, and dynamically adjust the electromagnetic parameters to optimize the flow field.

Benefits of technology

Accurate control of the crystallizer flow field is achieved, deflection flow and liquid level fluctuations are reduced, and the surface quality and equiaxial crystallinity of the continuous casting billet are improved.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

According to the slab continuous casting crystallizer flow field control device and method, traveling wave magnetic field generators are arranged between the positions, close to the lower portion of a molten steel meniscus, of the upper portions of the two sides of a wide face of a slab continuous casting crystallizer and the upper edge of an outlet of a submersed nozzle, and electromagnetic force generated by the traveling wave magnetic field generators is parallel to the wide face of a casting blank; direct-current static magnetic field generators are arranged on the lower portions of the two sides of the wide face of a slab continuous casting crystallizer and molten steel streams on the two sides of a submersed nozzle respectively, the two static magnetic field generators are perpendicular to the wide face of a casting blank, and the magnetic field directions of the two static magnetic field generators are opposite. A plurality of temperature measuring points and corresponding temperature measuring elements are arranged on two narrow-face crystallizer copper plates of the slab continuous casting crystallizer at intervals in the height direction, and the distance between at least one temperature measuring point on each narrow-face crystallizer copper plate and the upper edge of the corresponding narrow-face crystallizer copper plate is smaller than 100 mm; distances from the temperature measuring points to the surface of the crystallizer copper plate are the same; and the traveling wave magnetic field generator, the static magnetic field generator and the temperature measuring element are electrically connected with the controller.
Need to check novelty before this filing date? Find Prior Art