Northeastern University

Shenyang Taihe Metallurgy Measurement & Control Technology Co., Ltd.

Da Zhang

Zhi Xie

Zhenwei Hu

Ying Ci

An apparatus for measuring the liquid level of molten metal including an image measuring device (), a measuring probe (), a lifting mechanism (), a displacement sensor (), an data processing system () and a correction marker(). The lifting mechanism () is fixed to the molten metal container () or is independent of the molten metal container, the image measuring device () and the measuring probe () are installed on the lifting mechanism () or are independent of the lifting mechanism, and the optical axis of the image measuring device () is set at an angle with the geometric axis of the measuring probe (), the measuring probe () is located within the field of view of the image measuring device (), the image measuring device (), the lifting mechanism () and the displacement sensor () are connected to the data processing system () respectively. A method for measuring the level of molten metal is also disclosed. The present invention is able to eliminate the influence by the slag layer floating on the molten metal and to achieve stably and continuously accurate measurement of molten metal level by using the measuring probe () inserting into molten metal through the slag-metal interface and having the slag thickness information after lifted.

Apparatus and method for measuring the liquid level of molten metal

The present invention discloses a method and apparatus for measuring the temperature field on the surface of casting billet/slab, including: a thermal imager, an infrared radiation thermometer, a mechanical scanning unit, an image and data processing system; the thermal imager, the infrared radiation thermometer and the mechanical scanning unit are respectively connected to the image and data processing system; the infrared radiation thermometer is installed on the mechanical scanning unit and can measure the temperature of casting billet/slab surface by scanning; the thermal imager can measure the temperature of a certain area on the surface of casting billet/slab by thermal imaging. The present invention makes use of the combination of high-resolution thermal imager and scan-type infrared radiation thermometer, through the model-based filtering method, overcomes the influence of iron scales on the surface of casting billet/slab, and implements real-time stable measurement of surface temperature of casting billet/slab.

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Shenyang, China

Da Zhang