Development and implementation of a mathematical model of charging a blast furnace equipped with a bell-type charging deviceSerhii Vashchenko, Yurii Semenov, Oleksandr Khudyakov, Viktor Horupakha, Ievhen Shumelchyk and Kostiantyn BaiulMetall. Res. Technol., 122 6 (2025) 624DOI: https://doi.org/10.1051/metal/2025095