Abstract

The mathematical model of the raceway of the blast furnace working with use of injection of coal-dust fuel is considered. The model includes the equation of balance of mass of gas, the equation of balance of mass of components of gas, the equation of thermal balance of gas, the equation of movement of particles of a coal dust, the equation of thermal balance of a particle of coal dust. On the basis of this model the program was developed, allowing investigating influence of various factors on temperature and concentration fields in the raceway and choosing rational parameters of injection of coal-dust fuel, for the purpose of ensuring completeness of its combustion within the raceway. Main functions of the program: representation of results of calculation in the form of tables and diagrams, storage of options of basic data in a database, export of results of calculation to Microsoft Excel.

Keywords

Blast furnace, coal-dust fuel, raceway, mathematical model, software product.