Санкт-Петербургский горный университет императрицы Екатерины II, Санкт-Петербург, РФ

Каллаев И. Т., аспирант, kallaev1996@mail.ru

Николаева Н. В., доцент, канд. техн. наук, доцент, Nikolaeva_NV@pers.spmi.ru

Кухтина А. А., студент, arisha362@mail.ru

Кухтина П. А., студент, pkuhtina@gmail.com

Представлены результаты исследований влияния ультразвуковой обработки на эффективность процесса измельчения медных руд. Установлено, что предварительная 15-минутная УЗ обработка руды в водной среде на частоте 35 кГц изменяет ее прочностные характеристики, что подтверждается снижением рабочего индекса шарового измельчения Бонда (BWi) на 10,4 %. Это соответствует переходу руды из категории очень твердых в твердые. Ультразвуковые колебания ослабляют структуру руды, уменьшая ее прочность, что облегчает последующее измельчение и снижает общие энергозатраты. Произведены расчеты общей удельной энергии цикла без и с предварительной УЗ обработкой — снижение энергии составило 3,7 %. Предложенный метод модификации прочностных свойств может быть интегрирован в существующие технологические схемы переработки руд без кардинальной перестройки производства.

Работа выполнена в рамках государственного задания Министерства науки и высшего образования Российской Федерации «Исследование термодинамических процессов Земли с позиции генезиса углеводородов на больших глубинах» FSRW–2024–0008.

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