발간논문

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Vol.34, No.7, 847 ~ 856, 1996
Title
Research Paper - Solidification - : Prediction of Erosion in the Main Runner of Blast Furnace
정진경Jin Kyeung Chung, 한정환Jeong Whan Han
Abstract
In order to determine the life span of refractory of the blast furnace main runner, six thermocouples were installed in the main runner 4.5 meters distant from a tapping hole and connected to a personal computer via a data acquisition system. The cross-sectional area of a main runner was uniformly divided into many elements, and each element contacting both the pig iron and refractory was defined as boundary elements for the calculation of the temperature distribution as well as for the prediction of refractory erosion. Temperatures obtained at near slag line were wavy, which was closely related not to the tapping condition, but to the erosion state of main runner. A diagnostic method for determining the refractory profile was proposed.
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