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How to Detect the Thickness of Sintering Furnace Lining

How to detect the thickness of the sintering furnace lining is a relatively important part. The quality and thickness of the sintering furnace have a relatively large impact on the use of the electric furnace. Furnace lining refers to the furnace wall of the furnace used for refining metal, which is made of high-temperature resistant ceramics. The service life of the sintering furnace lining directly affects the overall service life of the sintering furnace.

There are several methods for detecting the thickness of the lining of the sintering furnace:

Stress Wave Method:

The stress wave signal is highly sensitive to structural defects. When the stress wave propagates in the medium, such as holes, cracks and other interface discontinuities, reflection, refraction, scattering and mode conversion will occur. The characteristics of the stress wave can determine the thickness of the stave material.

Capacitance Method:

The capacitance method is similar to the resistance method. A coaxial circular capacitor sensor is embedded inside the furnace lining, and the capacitance value corresponds to its length. The thickness of the blast furnace masonry can be determined by measuring the capacitance value. Through these methods, some basic data and performance of the furnace lining have a preliminary judgment and firmness, and a general understanding of the general working conditions of the electric furnace.

Resistance method:

The resistance element is embedded in the furnace lining, the front end of the sensor is aligned with the inner surface of the furnace lining, and the measurement system is connected through the lead wire. The corresponding measuring instrument measures the electrical signal output by the component, and then the remaining thickness of the furnace lining can be measured online.