Abstract：The detection and control of molten steel level in mold is one of the core links of continuous casting machine production control. Stable liquid level in mold is of great significance to improve the internal and surface quality of casting slab, avoid the involvement of slag and other non-metallic inclusions, and reduce production accidents such as breakout or steel overflow. Especially for ESP thin slab caster with high cast speed and high throughput, it requires higher accuracy of liquid level detection and control. All mold level sensors used in ESP continuous casting machines are NKK systems, which have mature application experience. Aiming at the first application of VUHZ level detection system in ESP caster, the problems affecting VUHZ level detection were solved by optimizing system control parameters, signal compensation and cooling water system. The practice shows that the level control accuracy and level fluctuation of VUHZ system can meet the requirements of field process production under the condition of high pulling speed.
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2022, Vol. 41 
