Development of Physical Simulation Experiment Technology for Blast Furnace Coal Injection Ironmaking

Abstract

Abstract The coal injection process of blast furnace has certain particularity. Including gas movement, material movement, coal gasification process, coal combustion and other phenomena. However, the actual conditions of the laboratory are limited, and these phenomena need to be simplified. The key of physical simulation is to design the experimental model correctly. The basic theory of the correct design of the experimental model is the principle of similarity, that is, to establish the experimental model satisfying the main similarity conditions. So as to ensure that the main physical phenomena in the model and prototype are similar. A series of measurements were carried out during the experiment. Get the knowledge of the corresponding change law of the prototype. In the process of experiment, it is necessary to make sure that the model has the same number, material balance and heat balance. Otherwise, it is difficult to achieve the equilibrium state in the experimental process and obtain meaningful experimental results.