一、引前 近年来延长高炉炉龄已成为一个非常重要的问题。如果在高炉运行期间,能够不断地测量炉衬烧蚀的情况,则测得的结果对于延长高炉的寿命是十分有用的。因此,我们开发了一种新型精密的多热电偶的传感器(FMT传感器),以及分析方法(触发响应法),用分析来自这种传感器的信号,就可估算出炉衬烧蚀的范围。根据这些技术,已经开发了能够监视任何时刻炉衬烧蚀的在线系统,并已应用于神户钢厂的三号高炉上。 I. Introduction In recent years to extend the blast furnace has become a very important issue. If the ablation of the lining can be continuously measured while the blast furnace is operating, the measured results are very useful for extending the life of the blast furnace. Therefore, we developed a new type of precision thermocouple sensor (FMT sensor), as well as an analytical method (trigger response method) that analyzes the signal from this sensor to estimate the extent of the liner ablation. Based on these technologies, an on-line system capable of monitoring the ablation of the lining at any time has been developed and has been applied to the No. 3 blast furnace at Kobe Steel Works.