Високотемпературне дослідження особливостей верхньої продувки конвертерної ванни з використанням фурм, що забезпечують генерацію озону високовольтним електричним розрядом

• Дата: 2026
• Автори: Семикін, С.І., Голуб, Т.С., Молчанов, Л.С., Дудченко, С.О.
• Формат: Стаття
• Мова: Українська
• Опубліковано: Physico-technological Institute of Metals and Alloys 2026
• Теми: киснева продувка у конвертері; киснева фурма зі щілинним соплом; озон; високовольтна електрична активація; окислювальні процеси
• Онлайн доступ: https://www.metalsandcasting.com/index.php/mcu/article/view/314
• Назва журналу: Metal and Casting of Ukraine

In modern conditions, the oxygen-converter method of steel production remains one of the most common methods of obtaining metal for structural purposes. At the same time, its productivity is determined by the speed of the course of oxidative chemical processes, which include the removal of excess impurities such as silicon, sulfur, phosphorus and carbon. When using the classical technology of oxygen-converter smelting, technically pure oxygen is used as an oxidant. In order to increase the speed of oxidative chemical transformations in the slag-metal bath of an oxygen converter, the authors conducted a high-temperature study to determine the features of the influence of additional introduction of ozone into the oxidizing gas on the features of the course of the parameters of the converter process. A feature of the specified study was the use of the method of ozone generation directly at the nozzle outlet due to the influence of a high-voltage electric discharge. For ozone generation, lances of a special design were developed: with a slot nozzle and with a slot nozzle and three cylindrical nozzles. During the research it was found that the blowing through the slot nozzle was characterized by a rigid interaction with the slag-metal phase, which is reflected in the low level of bath during blowing, however, the slag was characterized by sufficient fluid mobility due to the increased content of iron oxides and provides sufficient indicators of phosphorus and sulfur removal. The use of a lance equipped with a slot nozzle with high-voltage activation of the oxygen flow contributes to an increase in the efficiency of oxidation processes and, as a result, causes an increase in the content of iron III oxides in the slag. However, high-voltage activation in this case was accompanied by a significant increase in the rigidity of the blowing. The hydrodynamic mode of melting was normalized by introducing three additional cylindrical nozzles into the tip design (while maintaining the overall throughput). This contributed to the acceleration of the "melt ignition", the activation of all oxidation processes in the slag-metal phase with high efficiency of lime absorption and slag formation.