| It were investigated on the analytical solution based on Coulomb-Mohr circle and the solid flow in the blast furnace using a scale model. According to the experimental result, solid flow in the blast furnace could be divided into two regions that is mass flow over the belly, funnel flow under the upper belly. The analytical solutions that contained the average vertical stress, horizontal stress and wall stress were obtained by the plastic yield condition used in soil mechanics. The analytical calculation results corresponded well to the measured one over the belly. According to the analytical solution, the ratio of horizontal stress to average vertical stress turned over at the belly part, and such abrupt change of stress distribution caused mass flow to shift funnel flow. |
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