Through establishment of embedded detecting rod of blast furnace and furnace wall temperature on-line monitoring model of wall thickness

and with the steady-state numerical simulation on temperature field of different blast furnace wall thickness. The sensor in detecting the number of layout on the rod as well as the layout scheme is determined

and the accurate and real-time measurement to detect temperature field distribution is implemented by analyzing three kinds of sensor layout scheme such as temperature of maximum error

average error indicators

according to the detecting rod axis temperature curve change rule. The temperature field distribution of blast furnace wall is calculated with the length of the detection data to guide the normal operation of blast furnace and ensure longevity laid a foundation.