Санкт-Петербургский горный университет, Санкт-Петербург, Россия:

П. А. Петров, декан факультета переработки минерального сырья, канд. техн. наук, эл. почта: Petrov_PA3@pers.spmi.ru
А. К. Шестаков, аспирант кафедры автоматизации технологических процессов и производств (АТПП), эл. почта: s195017@stud.spmi.ru
М. Ю. Николаев, магистрант кафедры АТПП, эл. почта: s212364@stud.spmi.ru

Системы управления процессом выпуска алюминия, получившие наибольшее распространение на производстве, не обеспечивают своевременный контроль и регулирование основных технологических параметров электролиза (температуры электролита, концентрации глинозема, криолитового отношения, уровня металла и электролита). Эти параметры измеряют вручную и с большим интервалом (1 раз в сутки). Сложность внедрения автоматических систем контроля заключается в невозможности использования большинства датчиков и технических решений из-за тяжелых условий процесса электролиза (высокая температура, выделение вредных газов, пыление глинозема, переменное магнитное поле). В статье предложено решение, позволяющее осуществлять сбор значений уровня электролита в автоматическом режиме без необходимости разгерметизации ванны во время измерения при помощи лазерного дальномера, установленного внутри цилиндра пробойного устройства автоматической подачи глинозема (АПГ). Зная уровень электролита на каждом цикле питания, возможно определять минимальную порцию глинозема (интервал питания АПГ), а также добавлять дробленый электролит в автоматическом режиме (при наличии бункера с автоматической подачей дробленого электролита). Разработанная для обнаружения видимых выбросов вредных веществ система технического зрения на основе нейронной сети позволяет в случае нарушения сплошности криолит-глиноземной корки или разгерметизации ванны оперативно восстановить укрытие электролизера.

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