This invention relates to a thick-film intelligent
refractory carbon
brick, belonging to the field of
blast furnace ironmaking. A thick-film electrical sensor is installed on the carbon
brick, stacked layer by layer within the
brick and numbered for positioning. Signals from each layer are led out via wires. The electrical state of the thick-film electrical sensor is synchronously affected by the
erosion of the carbon brick, and the
erosion state of the carbon brick is detected by the resistance
signal output by the thick-film electrical sensor. This invention integrates the thick-film electrical sensor in situ onto the surface of the carbon brick, utilizing the corresponding change in output resistance during synchronous
erosion to directly reflect the real-time high-temperature erosion of the
refractory material inside the
blast furnace wall. Compared to the traditional indirect monitoring method of inserting armored thermocouples into blind holes for
temperature measurement and combining it with
heat transfer model derivation, this method offers better simplicity, accuracy, and reliability, providing important
technical support for ensuring the safety of
blast furnace ironmaking production and correcting the prediction accuracy of
hearth erosion models.