Залежність стану металевої ванни від кількості застосовуваного феромарганцю на установці ківш-піч

• Дата: 2025
• Автори: Піптюк, В.П., Самохвалов, С.Є., Логозинський, І.М., Греков, С.В.
• Формат: Стаття
• Мова: Українська
• Опубліковано: Physico-technological Institute of Metals and Alloys 2025
• Теми: кількість феросплаву; гідродинаміка; тепловий стан; рідка металева ванна
• Онлайн доступ: https://www.metalsandcasting.com/index.php/mcu/article/view/283
• Назва журналу: Metal and Casting of Ukraine

Steel production involves the use of various ferroalloys, which are introduced in significant quantities into the liquid metal bath, including at the stage of extra-furnace treatment. The vast majority of ferroalloys (additives) are fed in lump form. The volume of the additive can vary from 0.05 to several tens of kilograms per ton of molten steel, depending on the technological conditions of production and other requirements. Until now, research and calculations on the efficiency of using such additives in steel production were based on the consideration of the behavior of their individual piece in the liquid metal bath. At the same time, the theoretical description of the hydrodynamic and thermal state of the metal bath did not take into account the effect of the amount of the additive introduced. At the same time, it is this factor that can affect the accuracy of the calculated results and increase the error of further assessment of the efficiency of using valuable ferroalloys, which can be imported in significant quantities. The article shows the feasibility of taking into account such a factor as the amount of solid additives in the study of melting (dissolution) processes and assimilation of solid additives by the metal melt, which turns out to be significant among a number of influential parameters in real complex physical and chemical processes of their use. Using the example of lump ferromanganese grade FeMn78 as an additive, which was introduced in different quantities (from 1 to 3 kg/t) into the bath of a ladle with a capacity of 60 tons during steel processing in a ladle-furnace unit (LFU) with simultaneous bottom blowing with argon within 50-200 l/min through a tuyere, the effect of the amount of additive on the change in the hydrodynamic and thermal state of the liquid metal bath is shown.