Academic Journal
PATTERNS OF MASS TRANSFER BETWEEN THE LADLE BATH AND SURFACE SLAG ; ЗАКОНОМЕРНОСТИ МАССООБМЕНА МЕЖДУ КОВШЕВОЙ ВАННОЙ И ПОКРЫВНЫМ ШЛАКОМ ; ЗАКОНОМІРНОСТІ МАСООБМІНУ МІЖ КОВШОВОЮ ВАННОЮ ТА ПОКРИВНИМ ШЛАКОМ
| العنوان: | PATTERNS OF MASS TRANSFER BETWEEN THE LADLE BATH AND SURFACE SLAG ; ЗАКОНОМЕРНОСТИ МАССООБМЕНА МЕЖДУ КОВШЕВОЙ ВАННОЙ И ПОКРЫВНЫМ ШЛАКОМ ; ЗАКОНОМІРНОСТІ МАСООБМІНУ МІЖ КОВШОВОЮ ВАННОЮ ТА ПОКРИВНИМ ШЛАКОМ |
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| المؤلفون: | Sigarev, E. M., Pohvalitiy, A. A., Dovzhenko, A. V., Isakov, V. N. |
| المصدر: | Збірник наукових праць Дніпровського державного технічного університету (технічні науки); Том 2 № 33 (2018): collection; 3-9 ; Collection of scholarly papers of Dniprovsk State Technical University (Technical Sciences); Vol. 2 No. 33 (2018): collection; 3-9 ; 2617-8389 ; 2519-2884 |
| بيانات النشر: | Dniprovsk State Technical University |
| سنة النشر: | 2019 |
| المجموعة: | Collection of scholarly papers of Dniprovsk State Technical University (Technical Sciences) / Збірник наукових праць Дніпровського державного технічного університету (технічні науки) |
| مصطلحات موضوعية: | ladle, hot metal, mass transfer, iron loss, slag, rotating lance, UDС 669.162, ковш, чугун, массообмен, потери железа, шлак, вращающаяся фурма, УДК 669.162, ківш, чавун, масообмін, втрати заліза, обертова фурма |
| الوصف: | The influence specific reagent consumption and the degree assimilation of sulfur desulphurizers on the loss pig iron with coils in the cover slag, which is leaking from the surface melt after completion bucket refining pig iron, is investigated. According to the results analysis industrial data in the conditions bucket pig iron desulphurisation at PJSC «Dneprovsky Metallurgical Plant» it was established that the iron content in the slags, which are rolled after treatment, fluctuates in the range of 60-78%. It is determined that, regardless of the place sampling slag in the height its layer, in the latter is not less than 25% cast iron corks different fractions.The regularities mass exchange between slag and metal bath are determined in conditions change thickness of cover slag and its physical and chemical properties. The classification mechanisms for attracting droplets metal to the amount slag, including by passing the slag - metal into the surface section, with the removal waste gas – metal flow and the draining slag part to the metal bath by circulation flows is proposed.The method determining the size slag – metal gas bubbles floating on the boundary is proposed. The gas bubbles flowing to the upper horizons bath, on the surface which undergoes a reaction formation refractory magnesium sulfide, are surrounded by a film of a metallic melt. The collapse gas bubbles, surrounded by a metallic film, leads to the formation droplets of iron, which are driven by the flow metal into a layer slag. The peculiarities formation and maintenance cast iron cores with surface slag are investigated.It is shown that the droplets cast in the slag in turn coalesce and, provided that they reach a critical size (3-5 mm), when the force gravity becomes more than the force surface tension, settle down into the lower layers slag to the metal boundary, and under conditions sufficient exposure – return to the metal bath. In order to study the features tightening the cover slag to the volume a metal bath from the interfacial slag-metal ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | Ukrainian |
| Relation: | http://sj.dstu.dp.ua/article/view/156230/155637; http://sj.dstu.dp.ua/article/view/156230 |
| DOI: | 10.31319/2519-2884.33.2018.188 |
| الاتاحة: | http://sj.dstu.dp.ua/article/view/156230 https://doi.org/10.31319/2519-2884.33.2018.188 |
| Rights: | Авторське право (c) 2021 E. M. Sigarev, A. A. Pohvalitiy, A. V. Dovzhenko, V. N. Isakov |
| رقم الانضمام: | edsbas.A7A7811D |
| قاعدة البيانات: | BASE |
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