Relevant bibliographies by topics / Scrap Melting

Academic literature on the topic 'Scrap Melting'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Scrap Melting"

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Li, Jianghua, and Nikolas Provatas. "Kinetics of Scrap Melting in Liquid Steel: Multipiece Scrap Melting." Metallurgical and Materials Transactions B 39, no. 2 (March 20, 2008): 268–79. http://dx.doi.org/10.1007/s11663-007-9102-x.

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2

Kruskopf, Ari, and Lauri Holappa. "Scrap melting model for steel converter founded on interfacial solid/liquid phenomena." Metallurgical Research & Technology 115, no. 2 (December 5, 2017): 201. http://dx.doi.org/10.1051/metal/2017091.

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The primary goal in steel converter operation is the removal of carbon from the hot metal. This is achieved by blowing oxygen into the melt. The oxidation of carbon produces a lot of heat. To avoid too high temperatures in the melt cold scrap (recycled steel) is charged into the converter. The melting rate is affected by heat and carbon mass transfer. A process model for steel converter is in development. This model is divided into several modules, which are fluid dynamics, heat- and mass-transfer, scrap melting and chemical reactions. This article focuses on the development of the scrap melting module. A numerical model for calculating temperature and carbon concentration in the melt is presented. The melt model is connected with the solid scrap model via solid/liquid interface. The interface model can take into account solidification of iron melt, melting of solidified layer, a situation without such phase changes, and scrap melting. The aim is to predict the melting rate of the scrap including the properties of the hot metal. The model is tested by calculating the melting rates for different scrap thicknesses. All of the stages in the interface model were taking place in the test calculations.
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3

Sigarev, E., Y. Lobanov, S. Semiryagin, and A. Pohvalitiy. "MODELING THE MELTING OF SCRAP METAL OF DIFFERENT DENSITY IN A BOF SMELTING." Collection of scholarly papers of Dniprovsk State Technical University (Technical Sciences) 2, no. 37 (April 23, 2021): 3–8. http://dx.doi.org/10.31319/2519-2884.37.2020.1.

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The results of mathematical modeling process of melting scrap metal in the bath of an oxygen converter are presented. The influence relative amount of scrap metal in the charge of oxygen-converter smelting and its density on dynamics bath temperature during melting, slag oxidation and liquid metal yield was studied. It is shown that due to change in the shape of scrap metal during its melting, the classical approach to determining the reactive surface area of ​​the latter needs to be clarified.Mathematical descriptions of scrap metal melting in converter smelting by linear dependence and using fourth degree polynomials, which take into account the influence of initial and current carbon concentration in the bath, are offered. The influence of density and fraction of scrap metal, which is a part of metal charge, on duration of its melting in bath of oxygen converter, content iron oxides in slag, temperature mode process and yield liquid metal is investigated. It is shown that increasing mass of scrap metal in the metal charge to 40%, in the absence of its preheating, significantly changes the appearance both the oxidation curves of carbon and the dynamics of the bath temperature in the initial period melting.The latter may be due to the preservation active surface area of ​​scrap metal as its mass changes. Additional heat consumption for melting an increased amount preheated («cold») scrap metal leads to a decrease in the temperature of the liquid bath, which confirms the feasibility using the technology melting with preheating an increased amount of scrap.It is shown that from the point of view ensuring the rational course of converter smelting it is expedient to use equal shares heavy and lightweight scrap metal, regardless of the share latter in the metal charge. In the case using, under the considered conditions, «cold» scrap metal, the maximization yield of liquid metal is provided at the amount scrap up to 22% of the total mass metal charge.
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Makarov, A. N., M. K. Galicheva, and A. V. Kuznetsov. "Changing the Arc Efficiency during Melting of a Charge in Arc Steel Melting Furnaces." Materials Science Forum 870 (September 2016): 441–45. http://dx.doi.org/10.4028/www.scientific.net/msf.870.441.

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The article presents the results stemming from the calculation of the arc efficiency of arc steel melting furnaces during melting of scrap and metallized pellets. Furnaces that use metallized pellets are characterized by less arc efficiency and a higher electric energy consumption than similar pellet furnaces. The calculation results are confirmed by experimental investigations of energy balances of arc steel melting furnaces during melting of scrap and metallized pellets.
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Wu, Liushun, Kunlong Liu, Haiqing Mei, Guangda Bao, Yun Zhou, and Haichuan Wang. "Thermodynamics Analysis and Pilot Study of Reusing Medium and High Alloy Steel Scrap Using Induction Melting and Electroslag Remelting Process." Metals 12, no. 6 (May 30, 2022): 944. http://dx.doi.org/10.3390/met12060944.

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The annual cumulative quantity of high and medium alloy steel scrap has exceeded 10 million tons. Using the traditional smelting process involving electric arc refining in a smelting furnace for these scraps causes high percentages of alloy losses, which decreases the value of the alloy steel scrap and poses environmental threats. Existing studies have rarely focused on separate smelting of the scrap and oxidation behaviors of the alloying elements. Therefore, this study proposes an induction melting and electroslag remelting scheme to process the scrap. Based on this scheme, the effects of the temperature, oxygen content, and element contents on the recovery percentages of the alloying elements were investigated using pilot experiment and thermodynamic analysis. The experimental results showed that the alloying elements (tungsten, chromium, nickel, molybdenum, and vanadium) exhibited recovery percentages of 97.36%, 94.62%, 97.63%, 95.09%, and 89.49%, respectively; furthermore, the impurity content did not increase during smelting. The thermodynamic analysis indicated that an increase in carbon content improved the oxidation resistance of the alloying elements except for nickel, whereas the increases in the contents of oxygen and alloying elements increase their oxidation. Steam partial pressure and air suction dramatically increase the concentrations of nitrogen, hydrogen and oxygen. This scheme is an alternative for smelting medium and high alloy steel scrap, and the thermodynamic analysis provides a theoretical understanding of the oxidation behaviors of the alloying elements in the steel scrap and the control of impurity.
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Kukartsev, Viktor A., Vladislav V. Kukartsev, and Vadim S. Tynchenko. "Cast Iron and Steel Smelting in Induction Crucible Furnaces of Industrial Frequency." Solid State Phenomena 299 (January 2020): 530–34. http://dx.doi.org/10.4028/www.scientific.net/ssp.299.530.

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A brief analysis of the cast iron and steel smelting in induction furnaces of industrial and medium frequency has been carried out. The analysis of the used metal scrap for the smelting of synthetic iron in induction melting furnaces with a padded lining of a lining mixture, based on quartzite, is carried out. The requirements for temperature melting modes, which are regulated by this type of melting furnaces developers, are reflected. The advantages and disadvantages of using induction crucible furnaces of industrial and medium frequency are considered. The features of smelting synthetic pig iron in Russia are noted, the main of which are the following: the absence of cast iron scrap, which makes it necessary to use a metal scrap from a single steel scrap, and use temperature melting conditions above 1450 ° C; use a lining based on quartzite, as the cheapest, but sharply reducing its resistance to the operation of the furnace at such melting temperatures (from 300-350 to 200-250 smelts). The actuality of the possibility of steel smelting in induction crucible furnaces of industrial frequency with the use of acid lining, based on the Pervouralsk quartzite, is substantiated. It is explained by the fact that existing foundries are equipped mainly with induction melting furnaces of industrial frequency, and the use of induction melting furnaces of medium frequency requires considerable material costs.
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Wang, Tao, Kanghua Pei, Jian Zhao, Zhao Li, Huan Wang, Rongwang Yang, and Chao Chen. "Cold Model Study on Melting of Ice Made by KCl Solution in Gas-Water Two-Phase Plume Area." E3S Web of Conferences 290 (2021): 01023. http://dx.doi.org/10.1051/e3sconf/202129001023.

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With the increasing of scrap usage in steelmaking processes, the melting of scrap becomes a very important phenomenon that limits the productivity and tap-to-tap time. Ice-water systems have been widely used to study the melting of scrap and alloys. In this study, the melting rate of saturated KCl solution ice spheres in gas-water two-phase plume zone are studied as a function of height of location, gas flowrate, and melt temperature. The results show that the shape of the ice sphere gradually changes firstly from spherical to elliptical, and finally becomes an irregular state. 1) The decreasing of the distance between the ice sphere and the bottom plugs, 2) the increasing of the gas flowrate, 3) the slightly increasing of bath temperature will all benefits the melting rate of ice spheres.
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Kovar, Ladislav, Pavel Novak, and Tomas Hapla. "Lance Design for Scrap Melting Aggregates." Tehnički glasnik 15, no. 1 (March 4, 2021): 162–67. http://dx.doi.org/10.31803/tg-20200224122509.

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Metallurgical aggregates, which are used for metal waste melting, are equipped with lances for blowing gaseous media. These gaseous media allow especially scrap melting and intense homogenization of the resulting melt. In connection with this, the blowing systems are developed both for blowing of gaseous media itself on the bath surface or into the melt and for blowing of the gas mixture with powdered substances. When designing the blowing systems and the individual lance tips and nozzles, it is necessary to respect certain criteria, the derivation of which is based on long-term experience and acquired knowledge in this field. The submitted paper summarizes the design recommendations, including the determination of the selected design characteristics of the nozzles for blowing gaseous media on the bath surface in the metallurgical aggregate. These design characteristics help designers and engineers to design systems that meet the high demands on quality, efficiency and operational reliability.
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Telyakov, A. N., T. A. Aleksandrova, and M. A. Neezhko. "Melting Features of Electronic Scrap Concentrates." Metallurgist 58, no. 9-10 (January 2015): 743–45. http://dx.doi.org/10.1007/s11015-015-9988-5.

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Penz, Florian, Johannes Schenk, Rainer Ammer, Gerald Klösch, and Krzysztof Pastucha. "Evaluation of the Influences of Scrap Melting and Dissolution during Dynamic Linz–Donawitz (LD) Converter Modelling." Processes 7, no. 4 (March 31, 2019): 186. http://dx.doi.org/10.3390/pr7040186.

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The Linz–Donawitz (LD) converter is still the dominant process for converting hot metal into crude steel with the help of technically pure oxygen. Beside hot metal, scrap is the most important charging material which acts as an additional iron source and coolant. Because of the irrevocable importance of the process, there is continued interest in a dynamic simulation of the LD process, especially regarding the savings of material and process costs with optimized process times. Based on a thermodynamic and kinetic Matlab® coded model, the influences of several scrap parameters on its melting and dissolution behavior were determined, with a special focus on establishing the importance of specific factors on the crude steel composition and bath temperature after a defined blowing period to increase the accuracy of the process model. The calculations reported clearly indicate that the dynamic converter model reacts very sensitively to the chemical composition of the scrap as well as the charged scrap mass and size. Those results reflect the importance of experiments for validation on the diffusive scrap melting model in further research work. Based on that, reliable conclusions could be drawn to improve the theoretical and practical description of the dissolution and melting behavior of scrap in dynamic converter modelling.
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Dissertations / Theses on the topic "Scrap Melting"

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Zhang, Yanjun. "Scrap melting in a continuous process rotary melting furnace." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/31195.

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Based on the preliminary modeling study, an improved heat-transfer model has been developed in this study to further examine the viability of the oxy-fuel-fired continuous process rotary melting furnace (CPRMF) as a replacement of the electric arc furnace (EAF) in minimill steelmaking. The model treats the furnace as three domains: the freeboard space, the liquid metal bath and slag, and the refractory structure. Based on certain physical correct assumptions for the gas flow and combustion patterns, radiative exchange within the freeboard is solved by the zone method in combination with a clear-plus-3-gray emissivity/absorptivity model for the gas phase thus the model allows axial temperature variations in the gas phase and the refractory hot-face. Assuming an isothermal metal bath condition, heat transfer to the exposed bath is simplified by a specified temperature difference between the slag/freeboard and slag/metal interfaces, while regenerative heat transfer to the covered bath is calculated using the local refractory temperature and the local heat-transfer coefficients. The refractory structure is solved by 1-D transient conduction in the radial direction. The three domains are linked by shared boundary conditions and the requirement that the furnace itself operates at steady-state. The model was partially validated using experimental results from copper melting trials on a bench-scale CPRMF, which was designed and constructed as a part of work in this study. The trials explored two operating variables, i.e., oxygen and slag. Both experimental and model results indicate an increase in furnace thermal efficiency with increasing oxygen enrichment in the combustion air and a decrease in the efficiency with increasing slag thickness. The partially validated model was then employed to evaluate the commercial viability of the CPRMF. According to the model predictions, a melting rate in the order of 100 ton h⁻¹ can be achieved by a 4 m ID x 16 m furnace with a natural gas firing rate of 6000 Nm³ h⁻¹. Under the baseline conditions, the furnace thermal efficiency is 66%. Without scrap preheating, this configuration consumes less direct energy at 619 kWh t⁻¹ than the typical EAF (662 kWh t⁻¹) and can save at-source energy by about 45%.
Applied Science, Faculty of
Materials Engineering, Department of
Graduate
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2

Li, Jianghua Provatas Nikolas. "Kinetics of steel scrap melting in liquid steel bath in an electric arc furnace." *McMaster only, 2007.

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3

Боянівський, Владислав Петрович. "Підвищення ефективності печей для переплавки алюмінієвого брухту." Master's thesis, Київ, 2018. https://ela.kpi.ua/handle/123456789/24376.

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Магістерська дисертація на тему «Підвищення ефективності печей для переплавки алюмінієвого брухту»: 104 с., 35 рис., 12 табл., 4 додатки, 15 джерел. Об’єкт дослідження – піч для переплавки алюмінієвого брухту. Мета роботи – підвищення енергетичної ефективності та удосконалення конструкції печей для переплавки алюмінієвого брухту. Проаналізовані основні способи підвищення енергетичної ефективності. Наведені результати розрахунків енергетичної ефективності печі місткістю 6 т, потужністю 600 кВт, для переплвки алюмінієвого брухту. Показано, що за рахунок зменшення терміну відкриття форкамер знизилися витрати підведеної теплоти в печі на 45 %, а за рахунок зміни теплоізоляційних шарів - на 21 %. Підібрані газоспалюючі пристрої – пальники типу ГПП-5 та наведена схема їх розміщення в боковій передній стінці печі. Виконані розрахунки енергетичної та економічної ефективності переводу печі з електричного нагріву на газовий, при цьому для газового нагріву витрати підведеної теплоти зменшуються на 9 – 10 % порівняно з електричним. Розрахунками визначено, що використання газового нагріву порівняно з електричним економічно більш ефективно, оскільки витрати на природний газ в циклі плавки для модернізованої печі потужністю 600 кВт зменшуються приблизно на 10 %. Розроблена конструкція печі з нахиленим склепінням, для якої порівняно з традиційним зменшується термін плавки у середньому на 11 %, а ККД підвищується на 7 %. Для утилізації теплоти димових газів обрано односторонньо-голчастий металевий рекуператор для підігріву дуттьового повітря з площею поверхні нагріву 12 м2. В результаті встановлення рекуператора температура димових газів знижується від 800 °С до 390 °С, при цьому температура дуттьового повітря підвищується від 20 °С до 350 °С. Величина економії палива складає 16,9 %. На базі програмного забезпечення Solid Works побудовані геометричні моделі багатошарових стінок печі та отримані результати розподілу температурних полів по товщині огороджувальних конструкцій. Наведені результати співставні з експериментальними даними отриманими на реальних печах. Передбачені заходи з безпечної і комфортної роботи в приміщенні науково-дослідної лабораторії та заходи з пожежної безпеки та безпеки в надзвичайних ситуаціях. Розроблено стартап-проект за шаблоном Business Model Canvas.
Master's dissertation on "Improving the efficiency of furnaces for aluminum scrap remelting": 104 p., 35 f., 12 tables, 4 applications, 15 sources. The object of the study is an oven for aluminum scrap remelting. The purpose of the work is to increase energy efficiency and improve the design of furnaces for aluminum scrap remelting. Analyzed the main ways of improving energy efficiency. Presented the results of calculations of the energy efficiency of a 6-ton capacity kiln with a capacity of 600 kW for the remelting of aluminum scrap. It is shown that due to reduction of the opening time of the firebox, the cost of the supplied heat in the furnace decreased by 45% and due to the change of the thermal insulation layers - by 21%. Selected gas-fired devices - burners type GPP-5 and the scheme of their placement in the side of the front wall of the furnace. The calculations of the energy and economic efficiency of the furnace conversion from the electric heating to the gas have been performed, while for the gas heating the costs of the supplied heat are reduced by 9 - 10% in comparison with the electric one. Calculations have shown that the use of gas heating compared to electric is economically more efficient, since the cost of natural gas in the melt cycle for a 600 kV upgraded furnace decreases by about 10%. Developed the furnace design with an inclined vault for which the average melting time decreases by 11% compared to the traditional one, and the efficiency increases by 7%. For utilization of flue gases heat was chosen one-sided-needle metal recuperator for heating of blown air with the area of the heating surface 12 m2. As a result of the installation of the recuperator, the temperature of the flue gases is reduced from 800 °C to 390 °C, while the ambient air temperature rises from 20 ° C to 350 C. The amount of fuel savings is 16.9 %. Based on the Solid Works software, constructed geometric models of the multilayer walls of the furnace and obtained the results of the distribution of temperature fields along the thickness of the enclosing structures. The presented results are comparable to the experimental data obtained on real furnaces. Made provision for safe and comfortable work in the premises of a research laboratory and fire and safety measures in emergencies. A startup project based on the Business Model Canvas template has been developed.
Магистерская диссертация на тему «Повышение эффективности печей для переплавки алюминиевого лома» 104 с., 35 рис., 12 табл., 4 приложения, 15 источников. Объект исследования - печь для переплавки алюминиевого лома. Цель работы - повышение энергетической эффективности и совершенствование конструкции печей для переплавки алюминиевого лома. Проанализированы основные способы повышения энергетической эффективности. Приведены результаты расчетов энергетической эффективности печи вместимостью 6 т, мощностью 600 кВт, для переплавки алюминиевого лома. Показано, что за счет уменьшения срока открытия форкамер снизились расходы подведенной теплоты в печи на 45%, а за счет изменения теплоизоляционных слоев - на 21%. Выбраны газосжигающие устройства - горелки типа ГПП-5 и приведена схема их размещения в боковой передней стенке печи. Выполнены расчеты энергетической и экономической эффективности перевода печи с электрического нагрева на газовый, при этом для газового нагрева расходы подведенной теплоты уменьшаются на 9 - 10% по сравнению с электрическим. Расчетами установлено, что использование газового нагрева по сравнению с электрическим экономически более эффективно, поскольку затраты на природный газ в цикле плавки для модернизированной печи мощностью 600 кВт уменьшаются примерно на 10%. Разработана конструкция печи с наклонным сводом, для которой по сравнению с традиционным уменьшается срок плавки в среднем на 11%, а КПД повышается на 7%. Для утилизации теплоты дымовых газов выбран односторонне-игольчатый металлический рекуператор для подогрева дутьевого воздуха с площадью поверхности нагрева 12 м2. В результате установки рекуператора температура дымовых газов снижается от 800 °С до 390 °С, при этом температура дутьевого воздуха повышается от 20 °С до 350 °С. Величина экономии топлива составляет 16,9%. На базе программного обеспечения Solid Works построены геометрические модели многослойных стенок печи и получены результаты распределения температурных полей по толщине ограждающих конструкций. Приведены результаты сопоставимы с экспериментальными данными полученными на реальных печах. Предусмотрены меры по безопасной и комфортной работе в помещении научно-исследовательской лаборатории. Разработан стартап-проект по шаблону Business Model Canvas.
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HUANG, JING-YAO, and 黃敬堯. "The Model Development and Numerical Simulation for Scrap Tyre Buring in the Steel Melting Process." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/21828825590127944590.

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碩士
國立中山大學
機械與機電工程學系研究所
104
In this study, a transient 3-D numerical model is built to investigate the tire burning in a furnace. In this study, the turbulence k-ε model and the combustion finite-rate/eddy-dissipation model are used to simulate the tire burning in hot furnace. The batch of tyre pieces is tossed in the furnace by using the discrete phase model (DPM) with spherical shape. In this study, it is found that the pyrolysis rate of a tyre piece will quickly reach a certain rate and maintain constant in a hot furnace of high temperatures. The simulation results show that the pyrolysis time and the destruction and removal efficiency(DRE) increase with the size of tire. In addition, the pyrolysis time increases with the increase in the mass of tire, but DRE decreases. The more consumed amount of top-injection oxygen by liquid iron cause less oxygen in the furnace, and consequently, results in less combustion heat release and longer pyrolysis time of tyre pieces. Furthermore, the influences of the distribution of tyre pieces and different turbulence models were also investigated in this study. This study has successfully simulated the phenomena of tyre burning process in a hot furnace and the simulation results can be used to design a batch-feeding tactic for waste tyre. It is suggested that to use large tyre pieces and reduce the oxygen consumption by liquid iron for high DRE. On the other hand, to reduce pyrolysis time for a batch of tyre, the suggestion is to decrease the batch-feeding mass and tyre size.
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Books on the topic "Scrap Melting"

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Toulouevski, Yuri N., and Ilyaz Y. Zinurov. Fuel Arc Furnace (FAF) for Effective Scrap Melting. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5885-1.

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George, Harry, ed. Scrap preheating and melting in steelmaking. Warrendale, PA: Iron and Steel Society, 1986.

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Toulouevski, Yuri N. N., and Ilyaz Y. Zinurov. Fuel Arc Furnace for Effective Scrap Melting: From EAF to FAF. Springer, 2017.

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Toulouevski, Yuri N., and Ilyaz Y. Zinurov. Fuel Arc Furnace for Effective Scrap Melting: From EAF to FAF. Springer, 2017.

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Harvey, D. S. Research into the Melting/refining of Contaminated Steel Scrap Arising in the Dismantling of Nuclear Installations. European Communities / Union (EUR-OP/OOPEC/OPOCE), 1990.

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Gomer, C. R., and J. T. Lambley. Melting of Contaminated Steel Scrap Arising in the Dismantling of Nuclear Power Plants (Nuclear Science and Technology). European Communities / Union (EUR-OP/OOPEC/OPOCE), 1985.

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Book chapters on the topic "Scrap Melting"

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Pantke, K., V. Güley, D. Biermann, and A. E. Tekkaya. "Aluminum Scrap Recycling Without Melting." In Future Trends in Production Engineering, 373–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-24491-9_37.

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Toulouevski, Yuri N., and Ilyaz Y. Zinurov. "Scrap Melting Process in Liquid Metal." In Electric Arc Furnace with Flat Bath, 45–67. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15886-0_3.

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Henderson, Richard S., David V. Neff, and Chris T. Vild. "Recent Developments in Aluminum Scrap Melting Update." In Aluminium Cast House Technology, 77–86. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118806364.ch8.

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Toulouevski, Yuri N., and Ilyaz Y. Zinurov. "Calculations of Scrap Melting Process in Liquid Metal." In Fuel Arc Furnace (FAF) for Effective Scrap Melting, 51–59. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5885-1_4.

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Wibner, Stefan, Helmut Antrekowitsch, and Barbara Falkensammer. "Representative Sampling, Fractionation and Melting of Al-Scrap." In Light Metals 2020, 1083–90. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36408-3_147.

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Liu, Mengke, Guojun Ma, and Xiang Zhang. "Kinetics of Scrap Melting in Iron–Carbon Bath." In TMS 2020 149th Annual Meeting & Exhibition Supplemental Proceedings, 1047–59. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36296-6_98.

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Toulouevski, Yuri N., and Ilyaz Y. Zinurov. "High-Temperature Heating a Scrap in a Furnace Shaft." In Fuel Arc Furnace (FAF) for Effective Scrap Melting, 79–85. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5885-1_6.

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Toulouevski, Yuri N., and Ilyaz Y. Zinurov. "EAF in Global Steel Production; Energy and Productivity Problems." In Fuel Arc Furnace (FAF) for Effective Scrap Melting, 1–6. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5885-1_1.

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Toulouevski, Yuri N., and Ilyaz Y. Zinurov. "Analysis of Technologies and Designs of the EAF as an Aggregate for Heating and Melting of Scrap." In Fuel Arc Furnace (FAF) for Effective Scrap Melting, 7–39. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5885-1_2.

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Toulouevski, Yuri N., and Ilyaz Y. Zinurov. "Experimental Data on Melting a Scrap in Liquid Metal Required for Calculation of This Process." In Fuel Arc Furnace (FAF) for Effective Scrap Melting, 41–50. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5885-1_3.

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Conference papers on the topic "Scrap Melting"

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Gao, M., and Y. Zhang. "Simulation on Scrap Melting in Steelmaking Process." In SteelSim 2019. AIST, 2019. http://dx.doi.org/10.33313/503/029.

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Quade, Ulrich. "Radiological Characterization of Steel Scrap Recycling by Melting." In ASME 2001 8th International Conference on Radioactive Waste Management and Environmental Remediation. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/icem2001-1139.

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Abstract Recycling of slightly radioactively contaminated steel scrap from nuclear installations to waste containers, shieldings or any other components for the nuclear cycle is practice in Germany since the early 90ies. To qualify the process, characterization of the radiological inventories in metal, slag and filter dust as well as metallurgical analysis is necessary. Therefore samples from the melt, slag and filter dust are taken to be analyzed by gammaspectroscopy. Alpha and beta emitting radionuclide inventories are calculated based on the typical nuclide ratio of the nuclear facility where the scrap results from. Activity distribution factors for each radio element are empirical values based on the melting of about 10,000 t of steel scrap with various nuclide ratios. High decontamination of the metal can be achieved for uranium, thorium, plutonium, cesium and strontium, which allows free release of the metal in most cases. For Co60 — the main radionuclide in reactor scrap — the decontamination by melting is limited and in most cases the strong criteria for free release can not be yielded. Such metal can be used for manufacturing cast iron components like containers or shieldings. To manage the expected large amount of metallic waste resulting from the decommissioning of nuclear facilities recycling is well developed and accepted in Germany. By the high cost of intermediate and final storage of nuclear waste recycling is a very economical alternative (3, 4).
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Brooks, G., N. Madhavan, A. Overbosch, M. Rhamdhani, and B. Rout. "Potential for Increased Scrap Melting in a BOF." In AISTech 2022 Proceedings of the Iron and Steel Technology Conference. AIST, 2022. http://dx.doi.org/10.33313/386/050.

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Abel, Markus, Markus Dorndorf, Michel Hein, and Hans-Jörg Huber. "SIMETAL EAF QUANTUM™ - THE FUTURE APPROACH FOR EFFICIENT SCRAP MELTING." In 43º Seminário de Aciaria - Internacional. São Paulo: Editora Blucher, 2012. http://dx.doi.org/10.5151/2594-5300-20760.

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Brusa, Eugenio G. M., Nicola Bosso, Nicolò Zampieri, Stefano Morsut, and Maurizio Picciotto. "Electromechanical Coupled Response of the AC Electric Arc Furnace Structures During the Scrap Melting Process." In ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/esda2012-82366.

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Prediction of structural dynamics of the Electric Arc Furnace (EAF) is rather difficult, because of a number of phenomena occurring during the scrap melting process. Three large electrodes, corresponding to each phase of a AC circuit, are lowered by the main mast towards the scrap to activate the melting process, induced by the electric arc. Electric current fed to each electrode produces a strong magnetic field and applies an electromechanical force on the other electrodes. Arc voltage looks irregular upon time, even because of the scrap motion within the vessel and temperature growth. The vertical position of the mast is controlled by an hydraulic actuator. Nevertheless, a heavy vibration of the structures affects the regularity of the melting process. A fully coupled model of the whole system is herein proposed, through a multi-physics approach. A first analytical approach, describing the electric circuit of the whole system, is implemented into a Multi Body Dynamics (MBD) model of the EAF, while a reduced Finite Element Method (FEM) model of the flexible structures is used for a preliminary optimization of the design parameters. Electromechanical forces due to the mutual induction among the electrodes are computed and the dynamic response of the system is investigated. Proposed model allows a first refinement of the EAF design, although a complete experimental validation on the real machine has to be performed, in spite of problems due the extremely difficult accessibility of structures during the melting process.
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Penz, Florian Markus, Johannes Schenk, Philip Bundschuh, Harald Panhofer, Krzysztof Pastucha, and Bernhard Maunz. "SCRAP MELTING IN BOF: INFLUENCE OF PARTICLE SURFACE AND SIZE DURING DYNAMIC CONVERTER MODELLING." In 48º Seminário de Aciaria, Fundição e Metalurgia de Não-Ferrosos. São Paulo: Editora Blucher, 2017. http://dx.doi.org/10.5151/1982-9345-30158.

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Kulcsár, Tibor, and Tamás Kékesi. "Thermo-Mechanical Extraction of Aluminium from the Dross of Melting Al and AlMg Scrap." In MultiScience - XXXI. microCAD International Multidisciplinary Scientific Conference. University of Miskolc, 2017. http://dx.doi.org/10.26649/musci.2017.024.

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Damiano, Patrizio, Marco Ansoldi, Manuele Piazza, Danieli Tolazzi, and Kuran Orhan. "LATEST RESULTS IN EAF OPTIMIZATION OF SCRAP-BASED MELTING PROCESS:Q-MELT INSTALLATION IN KROMAN CELIK." In 48º Seminário de Aciaria, Fundição e Metalurgia de Não-Ferrosos. São Paulo: Editora Blucher, 2017. http://dx.doi.org/10.5151/1982-9345-30560.

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Oshurkov, V. E., O. S. Logunova, and A. V. Lednov. "The Method of Metal Scrap Fragments Function Construction of the Poured Bulk Density in Melting Facilities Workspace." In 2019 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon). IEEE, 2019. http://dx.doi.org/10.1109/fareastcon.2019.8934005.

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De, Anindya Kanti, Achintya Mukhopadhyay, Swarnendu Sen, and Ishwar K. Puri. "A Numerical Simulation of Oxide Formation During the Melting of Aluminum in Aluminum Furnace." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-41286.

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A significant amount of aluminum is processed by melting secondary aluminum that contains small amounts of magnesium. A major drawback of aluminum production in secondary melt furnaces is the formation of dross or aluminum oxide by the oxidation of the molten metal. Since aluminum scrap forms a major source of the metal in secondary aluminum processing, the presence of alloying elements plays a key role in the oxidation process. Here, we consider the early stage of oxidation of Al-Mg alloy, during which primarily oxidation of magnesium to magnesium oxide occurs. We have simulated the processes in an aluminum melting furnace and considered the metal oxidation to be limited by one-dimensional diffusion. Our results predict the temporal variation of the oxygen distribution and the rate of metal evaporation and formation of the metal oxide. The effects of melt composition, gas temperature and oxygen concentration in the gas are discussed.
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