blackmetИзвестия высших учебных заведений. Черная МеталлургияIzvestiya. Ferrous Metallurgy0368-07972410-2091National University of Science and Technology "MISIS"10.17073/0368-0797-2020-11-12-891-898blackmet-2010Research ArticleЭКОЛОГИЯ И РАЦИОНАЛЬНОЕ ПРИРОДОПОЛЬЗОВАНИЕECOLOGY AND RATIONAL USE OF NATURAL RESOURCESТехнологическое моделирование совместного выщелачивания замасленной прокатной окалины и красного шламаTechnological modeling of joint leaching of oily rolling scale and red mudТанутровИ. Н.TanutrovI. N.

д.т.н., главный научный сотрудник лаборатории гидрометаллургии

620016, Россия, Екатеринбург, ул. Амундсена, 101

Dr. Sci. (Eng.), Chief Researcher of the Laboratory of  Hydrometallurgy

Ekaterinburg

intan38@live.ruСвиридоваМ. Н.SviridovaM. N.

к.т.н., старший научный сотрудник лаборатории гидрометаллургии

620016, Россия, Екатеринбург, ул. Амундсена, 101

Cand. Sci. (Eng.), Senior Researcher of the Laboratory of Hydrometallurgy

Ekaterinburg

ЧесноковЮ. А.ChesnokovYu. A.

к.т.н., заведующий лабораторией пирометаллургии черных металлов

620016, Россия, Екатеринбург, ул. Амундсена, 101

Cand. Sci. (Eng.), Head of the Laboratory of Pyrometallurgy of Ferrous Metals

Ekaterinburg

garlics@list.ruМаршукЛ. А.MarshukL. A.

научный сотрудник лаборатории пирометаллургии черных металлов

620016, Россия, Екатеринбург, ул. Амундсена, 101

Research Associate of the Laboratory of Pyrometallurgy of Ferrous Metals

Ekaterinburg

ferro@ural.ruИнститут металлургии УрО РАНРоссияInstitute of Metallurgy, UB RASRussian Federation2020020120216311-12891898Copyright © Танутров И.Н., Свиридова М.Н., Чесноков Ю.А., Маршук Л.А., 20212021Танутров И.Н., Свиридова М.Н., Чесноков Ю.А., Маршук Л.А.Tanutrov I.N., Sviridova M.N., Chesnokov Y.A., Marshuk L.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://fermet.misis.ru/jour/article/view/2010

Из анализа данных в области полезного использования красного шлама и замасленной прокатной окалины сформулировано новое направление утилизации: совместная переработка этих отходов с получением ликвидной продукции. На укрупненной лабораторной установке выполнено технологическое моделирование стадии совместной водной обработки смеси красного шлама и замасленной прокатной окалины. Определены выходы и составы продуктов. Партия промытого осадка направлена для исследований по получению железосодержащего сырья для последующей пирометаллургической переработки. При соотношении компонентов, равном 1:1, отношении твердого к жидкому, равном 4, температуре 95 °С и продолжительности 2 ч, переработано 6,3 кг смеси, получено 6,58 кг промытого осадка с влажностью 21,3 % и 12,6 дм3 конечного раствора. Определен удельный объем испарения воды, равный 31,3 дм3/ч на 1 м2 поверхности пульпы. На основании анализов содержания железа в осадке и концентрации железа в конечном растворе показано, что железо практически полностью аккумулировано в осадке. Определены концентрации в продуктах обработки примесей: кремния, алюминия, фосфора, серы, оксида натрия и органики. По результатам разработана технологическая схема совместной переработки красного шлама и замасленной прокатной окалины и намечены пути использования продуктов процесса: осадка – на получение железа, фильтрата – на промышленную очистку, испаренной и промывочной воды – в оборот на выщелачивание. На примере кооперации предприятий Каменск-Уральского промышленного узла рассмотрена аппаратурная схема процесса. Полученные данные целесообразно использовать для реализации технологии, в частности, для разработки технологического регламента на проектирование пилотной установки.

From the analysis of data on beneficial use of red mud and oily mill scale, a new direction of recycling has been formulated: the joint processing of these wastes to produce liquid products. Technological modeling of the stage of joint water treatment of a mixture of red mud and oily mill scale was performed at an enlarged laboratory unit. The yields and compositions of the products were determined. A batch of washed sludge was sent for research on obtaining ironcontaining raw materials for subsequent pyrometallurgical processing. With component ratio of 1:1, solid to liquid ratio of 4, temperature of 95 °C and duration of 2 hours, 6.3 kg of the mixture were processed, 6.58 kg of washed precipitate with a moisture content of 21.3 % and 12.6 dm3 of the final solution were obtained. The specific volume of water evaporation was determined to be 31.3 dm3/h per 1 m2 of pulp surface. Compositions of the precipitate iron (54.4 %) and the final solution (1.1 – 1.3 mg/dm3) were established, which indicates an almost complete accumulation of iron in the precipitate. Concentrations in the products of processing impurities were determined: silicon, aluminum, phosphorus, sulfur, sodium oxide and organics. According to the results, a technological scheme for the joint processing of red mud and oily mill scale was developed and ways of using the process products were outlined: sludge – for iron, filtrate – for industrial treatment, evaporated and wash water – for leaching. Using the example of cooperation between enterprises of the Kamensk-Uralsky Industrial Unit, the hardware process diagram is considered. It is advisable to use the data obtained to implement the technology, in particular, to develop technological regulations for the design of a pilot installation.

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The authors declare that there are no conflicts of interest present.