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A Novel Approach for Measuring the Thickness of Refractory of Metallurgical Vessels

机译：一种测量冶金容器耐火厚度的新方法

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摘要

The advancement of metallurgical vessels, such as blast furnaces, shaft furnaces, and torpedo ladles, can be better controlled and expanded for a greater lifespan if the thickness of the refractory lining wear is known and predicted. In the past, various methods including radioactive tracers, infrared (IR) thermography, electromagnetic waves, ultrasonic tomography, and temperature field have been tested to determine the thickness of the refractory wall. However, for various reasons, these methods have failed to be effective. This paper presents a novel method—electromotive force (EMF)—for predicting the thickness of refractory lining wear in vessels, including a small-scale vessel in the laboratory, an industrial torpedo ladle, and in the two refining hearths of blast furnaces. The experimental results show that the magnitude of the EMF signal increases with a decrease in wall thickness. Prediction values of the refractory wall thickness are consistent with measured ones. The relative error of EMF measurement for the torpedo ladle is around 6.8%. The EMF measurement of blast furnace hearths is quite accurate, and the relative error is less than 11%.
机译：如果耐火衬里磨损的厚度是已知和预测的，可以更好地控制冶金容器，例如高炉，轴炉和鱼雷钢包，例如更大的寿命，以更大的寿命控制。过去，已经测试了包括放射性示踪剂，红外（IR）热成像，电磁波，超声波断层摄影和温度场的各种方法以确定耐火壁的厚度。然而，由于各种原因，这些方法未能有效。本文介绍了一种新的方法 - 电动势（EMF） - 预测血管中耐火衬里磨损的厚度，包括实验室中的小型容器，工业鱼雷钢包，以及在高炉的两种精炼炉膛中。实验结果表明，EMF信号的大小随着壁厚的减小而增加。耐火壁厚的预测值与测量的壁厚一致。鱼雷钢包的EMF测量的相对误差约为6.8％。高炉炉膛的EMF测量非常准确，相对误差小于11％。

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