Research on Reconstruction Algorithm of Blast Furnace Throat Temperature Field

Aiming at the obvious limitations of the traditional blast furnace temperature measurement, such as slow response speed, easy damage, and inconvenient replacement, a non-contact ultrasonic measurement technology is proposed. The energy detector uses classical least squares to reconstruct the temperature field. Due to the problem of missing edge information, Kriging interpolation and radial basis interpolation are used to extrapolate and predict the edge temperature information. The basis interpolation method has a slight advantage. Looking at the number of installations, when 8 ultrasonic transducers are installed, the reconstruction accuracy is ideal, which proves the feasibility of the scheme.