Санкт-Петербургский горный университет императрицы Екатерины II, Санкт-Петербург, Россия¹ ; Донецкий национальный технический университет, Донецк, Россия²

В. В. Кочура, доцент кафедры металлургии¹, зав. кафедрой рудно-термических процессов и малоотходных технологий², канд. техн. наук, эл. почта: v.v.kochura@bk.ru

Санкт-Петербургский горный университет императрицы Екатерины II, Санкт-Петербург, Россия
Р. В. Куртенков, доцент кафедры металлургии, канд. техн. наук, эл. почта: kurtenkov_rv@pers.spmi.ru

Рассмотрены возможность развития энергоэффективных и ресурсосберегающих технологий в области металлургии черных и цветных металлов, а также вопросы снижения экологической нагрузки на окружающую среду. В результате выполненных исследований предложен способ проведения доменной плавки с вдуванием синтетического горячего восстановительного газа (ГВГ), полученного из доменного газа и недефицитных и относительно недорогих углей. Совместное вдувание в горн пылеугольного топлива (ПУТ) (120–138 кг/т чугуна) и ГВГ (300–550 м³/т чугуна) позволит снизить расход скипового кокса на 17–36 % (до 288–322 кг/т чугуна). Расход условного топлива (у.т.) из дефицитных энергоресурсов (кокс + ПУТ) составит 458–482 кг/т чугуна. Повышение расхода вдуваемого ГВГ до 600–900 м³/т чугуна снижает расход скипового кокса до 350–388 кг/т чугуна (68–105 кг/т чугуна; 15–21 %) и расход условного топлива из дефицитных энергоносителей (кокса) до 388–426 кг/т чугуна (154–191 кг/т чугуна; 26–33 %), что соответствует лучшим мировым аналогам при выплавке чугуна. Использование полученного из доменного газа ГВГ в качестве восстановительного при производстве чугуна позволит существенно повысить показатели доменной плавки, снизить выбросы СО₂ в атмосферу и улучшить экологическую обстановку в металлургических регионах страны.

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