Stress analysis of the packed bed in blast furnace

Abstract

Experimental study using a small scale blast furnace model as well as theoretical study based on the elastic-plastic theory were made to elucidate the characteristics of the stress field formed inside blast furnace and following results were obtained. 1) The stress distributions both on the furnace wall and on the furnace bottom measured in the experiment agreed approximately with those obtained through the numerical analysis based on the elastic-plastic theory. 2) The shape of deadman and the vertical distribution of the horizontal stress inside the cold model furnace observed in the experiment also agreed with those obtained through the same analysis. 3) Followed by the results presented in 1) and 2), the elastic-plastic theory was confirmed to be useful to elucidate the stress field formed inside blast furnace.