Готові списки джерел за темами / Blast-furnace melt / Статті в журналах
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Статті в журналах з теми "Blast-furnace melt"

Автор: Grafiati
Опубліковано: 3 червня 2025
Оновлено: 31 липня 2025

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1

Spirin, N. A., I. A. Gurin, V. V. Lavrov, and L. A. Zainullin. "Information modeling system for movement of charge layers and melt accumulation in a blast furnace well." Izvestiya. Ferrous Metallurgy 67, no. 2 (2024): 245–53. http://dx.doi.org/10.17073/0368-0797-2024-2-245-253.

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Анотація:
The article presents the results of development of an information modeling system for movement of charge layers and melt accumulation in a blast furnace well. The work is based on mathematical models reflecting modern ideas on the course of physico-chemical phenomena of blast furnace melting and technological features of the blast furnace process. The use of such system makes it possible to determine and visualize the configuration of layers of iron ore materials and coke according to the working space height, taking into account a given ore load in equal-sized annular zones of the blast furna
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2

Toniţă, Vasilica Viorica, Geta Cârâc, and Virgil Gabriel Teodor. "Characterization of blast furnace dust for reintroduction into the agglomeration process." E3S Web of Conferences 336 (2022): 00079. http://dx.doi.org/10.1051/e3sconf/202233600079.

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Анотація:
Significant amounts of dust from the processing of cast iron in the furnace can be considered as by-products for the technological flow from the agglomeration, having an adequate chemical and structural composition. Blast furnace dust contains significant amounts of metals and non-metals that can be recovered by various processing methods. The transformation of these recyclable materials for reuse into metal producing units is essential not only for the conservation of mineral resources but also for the protection of the environment. This paper presents the chemical and mineralogical character
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3

Stepanenko, D., and D. Togobitska. "Regarding the interaction and capture of metal droplets by blast furnace slag." Metaloznavstvo ta obrobka metalìv 30, no. 2 (2024): 3–15. http://dx.doi.org/10.15407/mom2024.02.003.

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Анотація:
The mechanism of capture of metal drops by the slag melt was investigated using blast furnace slag as an example. The role of the viscosity of the blast furnace slag in reducing iron loss at the output from the blast furnace is shown. Reducing the viscosity of slags contributes to the rapid settling of small drops of cast iron in the slag volume. It is noted that the CaO/SiO2 ratio is an important parameter that changes the viscosity of blast furnace slag. To ensure the minimum viscosity of blast furnace slag, it is necessary to establish the optimal chemical composition of the slag, in partic
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4

Dmitriev, A. N., D. A. Vit’kin, M. O. Zolotykh, and G. Yu Vit’kina. "Mathematical model of blast furnace hearth condition based on data from thermocouples in refrigerator belts." Izvestiya. Ferrous Metallurgy 68, no. 3 (2025): 316–23. https://doi.org/10.17073/0368-0797-2025-3-316-323.

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Анотація:
The control of blast furnace hearth lining is of critical importance in ensuring efficient and safe operation of blast furnace production process. Hearth lining plays a fundamental role in protecting the blast furnace walls from high temperatures and chemically aggressive slag melt. Early detection of high wear areas allows planning of preventive maintenance, thereby minimizing downtime and lost productivity. Furthermore, it contributes to the efficient use of resources by optimizing the replacement of damaged lining sections, thus avoiding unnecessary expenditure on preventive measures. The p
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5

Frosin, C., F. Ambrosino, P. Andreetto, et al. "Exploring the potential of muon radiography for blast furnace assessments: advancements in non-invasive imaging and structural analysis." Journal of Instrumentation 19, no. 02 (2024): C02041. http://dx.doi.org/10.1088/1748-0221/19/02/c02041.

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Анотація:
Abstract The BLEMAB European project (BLast furnace stack density Estimation through online Muon ABsorption measurements), the evolution of the previous Mu-Blast European project, is designed to investigate in detail the capability of muon radiography techniques applied to the imaging of the inner zone of a blast furnace. In particular, the goal of this collaboration is to characterize the internal region (so-called cohesive zone) where the slowly downward-moving material begins to soften and melt, which plays an important role in the performance of the blast furnace itself. In this contributi
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6

Merkulov, O., Yu Semenov, and M. Dzhigota. "Modeling of blast furnace melt processes when changing the program of charging the burden." Modern Problems of Metalurgy, no. 25 (April 8, 2022): 117–25. http://dx.doi.org/10.34185/1991-7848.2022.01.10.

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Анотація:
The publication presents the results of a predictive assessment of the modeling of processes and final indicators of blast-furnace smelting with a change in the charge loading program for a blast furnace with a volume of 1719 m3, followed by comparison with the actual results obtained. Modeling was carried out using a mathematical model of blast-furnace smelting, which, in contrast to obtaining balance indicators, makes it possible to obtain knowledge about the mechanism of the processes due to which changes occur, including the uneven distribution of charge materials on the top of the blast f
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7

Yaroshenko, Yu G., V. S. Shvydkii, N. A. Spirin, and V. V. Lavrov. "Steady heat transfer in melt-irrigated blast-furnace zone." Steel in Translation 46, no. 2 (2016): 88–92. http://dx.doi.org/10.3103/s0967091216020170.

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8

Togobitskaya, D. N., A. I. Belkova, D. A. Stepanenko, N. A. Tsyupa, and Yu M. Likhachev. "Development of the model complex of the expert system of control and management of the slag mode in modern mixed blast furnace conditions." Fundamental and applied problems of ferrous metallurgy, no. 34 (2020): 30–46. http://dx.doi.org/10.52150/2522-9117-2020-34-30-46.

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Анотація:
The aim of the work is to develop physicochemical bases for predicting the technological properties of finite blast furnace slags, algorithmic and software for the subsystem for diagnosing the slag regime of blast furnace smelting. Based on experimental data on the properties of natural finite blast furnace slags, predictive models for calculating the viscosity of the final slag at a temperature of 1400-1550 °C were improved by including in the model structure an integrated slag melt index of the parameter Δe, which reflects the individual effect. Using the integral parameters of the slag melt
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9

Karakuts, I. M. "Improving the reliability of the electric gun drive for closing the taphole of a blast furnace." Reporter of the Priazovskyi State Technical University. Section: Technical sciences, no. 41 (December 24, 2020): 109–13. https://doi.org/10.31498/2225-6733.41.2020.226189.

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Анотація:
The blast furnace is a large metallurgical vertical furnace for smelting cast iron and ferroalloys. The principle of the blast furnace operation is the continuity of the metallurgical process during the whole period of its operation up to the regular overhaul, which is performed on average once every ten years. The total service life of the blast furnace can exceed one hundred years. The blast furnace is of a mine type: it is periodically charged from above with ore, coke and other components, gas being fed from below. Periodically, the slag melt is drained from the blast furnace and molten ca
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10

Bonechi, L., F. Ambrosino, P. Andreetto, et al. "BLEMAB European project: muon imaging technique applied to blast furnaces." Journal of Instrumentation 17, no. 04 (2022): C04031. http://dx.doi.org/10.1088/1748-0221/17/04/c04031.

Повний текст джерела
Анотація:
Abstract The BLEMAB European project (BLast furnace stack density Estimation through on-line Muon ABsorption measurements), evolution of the previous Mu-Blast European project, is designed to investigate in detail the capability of muon radiography techniques applied to the imaging of a blast furnace’s inner zone. In particular, the geometry and size of the so called “cohesive zone”, i.e. the spatial zone where the slowly downward moving material begins to soften and melt, that plays an important role in the performance of the blast furnace itself. Thanks to the high penetration power of the n
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11

N.P., VALUEV, MASHINTSOV E.A., and YUDANOV P.M. "TECHNOGENIC IMPACT OF RADIOACTIVE CONTAMINATION OF METAL SMELTING PRODUCTS ON ENVIRONMENT AND POPULATION." News of the Tula state university. Sciences of Earth. 1, no. 1 (2021): 3–13. http://dx.doi.org/10.46689/2218-5194-2021-1-1-1-13.

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Анотація:
The analysis of the distribution of radionuclides in the products of blast furnace and steelmaking melting operation processes is carried out. It was shown that the blast furnace melting process is considerably affected by natural radionuclides whereas steelmaking furnace process - by technogenic ones. The main impact on the environment is exerted by the gas-dust fraction, which contaminates the surrounding soil, vegetation and ground water during the settling process. An additional dose of external irradiation of the population and personnel is created by slag and metal fractions. High radiat
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12

Barbasova, T. A. "A MULTILEVEL RESOURCE-SAVING BLAST FURNACE PROCESS CONTROL." Bulletin of the South Ural State University. Ser. Computer Technologies, Automatic Control & Radioelectronics 21, no. 1 (2021): 136–46. http://dx.doi.org/10.14529/ctcr210112.

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Анотація:
A multilevel resource-saving blast furnace process control is considered. The resource-saving control is provided for operating, adaptation, technical and economic control in the automated systems of blast-furnace processes. It is proposed to form optimal operation modes of blast furnace heating, metal charge structures, natural gas and oxygen consumption. Decisions are made using Kohonen neural networks taking into account current and planned parameters of coke quality, iron ore, raw materials and blast. At the level of operating control, the work suggests a model predictive control to improv
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13

Muravyova, I. G., N. G. Ivancha, E. A. Beloshapka, V. I. Vishnyakov, E. P. Ermolina, and N. E. Hodotova. "Analysis of the methods of management of the domain melt on the basis of information about the form and position of the cohesive zone." Fundamental and applied problems of ferrous metallurgy, no. 32 (2018): 151–64. http://dx.doi.org/10.52150/2522-9117-2018-32-151-164.

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Анотація:
The aim of the work is to formulate recommendations on the adoption of control actions on the course of smelting in modern conditions. The ideology of the modern intellectual decision support system for blast smelting management is based on providing the optimal plastic zone in the blast furnace (DP). Blast furnace melting control methods are based on information on the shape and position of the plastic zone in the blast furnace. According to the results of research carried out by various scientists, it was shown that the plastic zone is a hollow cone, the walls of which consist of alternating
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14

Chernavin, A. Yu, V. A. Kobelev, D. A. Chernavin, and G. A. Nechkin. "Study of blast furnace heat filterability through coke filling." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 75, no. 3 (2019): 315–21. http://dx.doi.org/10.32339/0135-5910-2019-3-315-321.

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Анотація:
Increase of gas permeability of burden materials column lower part is one of the way of blast furnace heat intensification. Filterability of intermediate slag through coke filling determines the gas permeability of the lower zone and the blast furnace heat running. To study the filterability a methodology was elaborated and implemented, which enabled to estimate reliably the iron ore raw materials behavior in the blast furnace at high temperatures. By laboratory studies influence on the filterability of BF slag melt was determined, when MgO, MnO and CaO adding to the burden, depending on the o
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15

Togobitskaya, D. N., A. I. Belkova, D. A. Stepanenko, N. A. Tsyupa, and Yu M. Likhachev. "Prediction of the properties of blast furnace slag in modern conditions of blast furnaces of Ukraine." Fundamental and applied problems of ferrous metallurgy, no. 32 (2018): 118–36. http://dx.doi.org/10.52150/2522-9117-2018-32-118-135.

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Анотація:
The aim of the work is the development of models for predicting the properties of final blast-furnace slags for the rapid assessment of the slag regime and the development of sound management recommendations when using various additives in the operating conditions of blast furnaces in Ukraine. A two-stage approach to calculating the properties of blast-furnace slag is proposed: according to the model of a “homogeneous” melt and taking into account its heterogeneity. A predictive model has been developed for calculating the viscosity of a «homogeneous» slag by including the integral parameter o
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16

Shapovalov, A. "The use of statistical modelling to justify a rational technology of steel production in the conditions of JSC Ural Steel." Bulletin of Science and Practice, no. 11 (November 14, 2017): 227–35. https://doi.org/10.5281/zenodo.1048455.

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Анотація:
In the conditions of JSC Ural Steel, the most costly technological task in the production of high-quality steel is to provide the required sulfur content. The analysis of the sulfur removal in the production of high-quality steel in the technological conditions of JSC Ural Steel was performed. An increase in the sulfur content of the pig iron at 0,007-0,010% of the tapping from the blast furnace until used in an electric arc furnace was founded. The need for preliminary hot metal desulphurization before pouring in the electric arc furnace was justified. The method of calculating the cost of ho
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17

Du, Peipei, Yuzhu Zhang, Yue Long, and Lei Xing. "Effect of the Acidity Coefficient on the Properties of Molten Modified Blast Furnace Slag and Those of the Produced Slag Fibers." Materials 15, no. 9 (2022): 3113. http://dx.doi.org/10.3390/ma15093113.

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Анотація:
The online preparation of fibers using molten modified blast furnace slag can not only achieve the high-value-added utilization of the slag but can also make use of the sensible heat of the slag. In this paper, blast furnace slag was modified using iron tailings, and was then used to prepare slag fiber online; the effects of the acidity coefficient on the properties of the molten modified blast furnace slag and modified blast furnace slag fiber were investigated. With an increase in the acidity coefficient from 1.2 to 1.6, the temperature range of the slag melt, with viscosity in the 1–3 Pa·s
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18

Du, Peipei, Yuzhu Zhang, Yue Long, and Lei Xing. "Effect of the Acidity Coefficient on the Properties of Molten Modified Blast Furnace Slag and Those of the Produced Slag Fibers." Materials 15, no. 9 (2022): 3113. http://dx.doi.org/10.3390/ma15093113.

Повний текст джерела
Анотація:
The online preparation of fibers using molten modified blast furnace slag can not only achieve the high-value-added utilization of the slag but can also make use of the sensible heat of the slag. In this paper, blast furnace slag was modified using iron tailings, and was then used to prepare slag fiber online; the effects of the acidity coefficient on the properties of the molten modified blast furnace slag and modified blast furnace slag fiber were investigated. With an increase in the acidity coefficient from 1.2 to 1.6, the temperature range of the slag melt, with viscosity in the 1–3 Pa·s
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19

Minin, S. I., D. A. Koshkarov, A. A. Forshev, et al. "Analysis of the possibility of replacing carbon with hydrogen in the conditions of smelting cast iron from vanadium-containing titanomagnetites." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 79, no. 8 (2023): 629–35. http://dx.doi.org/10.32339/0135-5910-2023-8-629-635.

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Анотація:
75 % of the total carbon dioxide emissions by ferrous metallurgy enterprises is generated in the blast furnace process. One of the directions of CO2 emission reduction in pig iron production is partial replacement of carbon monoxide with hydrogen as a reducing agent. It is shown that such a replacement can lead to a decrease in the total carbon consumption due to reduction of heat consumption for the direct reduction of iron oxides. Using a mathematical model of the blast furnace process, the efficiency of partial replacement of process fuel (coke, natural gas, pulverized coal) with a hydrogen
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20

Wang, Xiao-Song, and Bo-Young Hur. "Fabrication of mineral fiber via melt spinning method from blast furnace slag." Journal of the Korean Crystal Growth and Crystal Technology 24, no. 4 (2014): 158–63. http://dx.doi.org/10.6111/jkcgct.2014.24.4.158.

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21

Yaroshenko, Yu G., V. S. Shvydkii, N. A. Spirin, and V. V. Lavrov. "STATIONARY HEAT EXCHANGE IN THE BLAST FURNACE SMELTING ZONE IRRIGATED WITH MELT." Izvestiya Visshikh Uchebnykh Zavedenii. Chernaya Metallurgiya = Izvestiya. Ferrous Metallurgy 59, no. 2 (2016): 88–93. http://dx.doi.org/10.17073/0368-0797-2016-2-88-93.

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22

Zhang, Wentao, Feng He, Yongli Xiao, et al. "Structure, viscosity, and crystallization of glass melt from molten blast furnace slag." International Journal of Applied Glass Science 11, no. 4 (2020): 676–84. http://dx.doi.org/10.1111/ijag.15054.

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23

Kuznetsov, M. S., G. Yu Kryachko, and Ye M. Sigarev. "Influence of release mode of melt products on the blast furnace operation." Metal and Casting of Ukraine 30, no. 4 (2022): 20–29. http://dx.doi.org/10.15407/steelcast2022.04.020.

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24

Nesterov, A. S., L. I. Garmash, K. P. Lopatenko, M. G. Boldenko, N. V. Gorbatenko, and E. I. Lutar. "The researches of high-temperature properties of iron materials in laboratory conditions." Fundamental and applied problems of ferrous metallurgy, no. 32 (2018): 64–79. http://dx.doi.org/10.52150/2522-9117-2018-32-64-79.

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Анотація:
The aim of the study is to simulate in laboratory conditions the behavior of iron ore materials in the zone of softening-melting DP and drip flow using an integrated method developed at the Institute of Ferrous Metallurgy. It is shown that the widespread idea of the formation in the blast furnace of primary slag melt based on FeO takes place mainly in the initial period of slag formation and is true for low basicity iron ore materials. For pellets, the nature of the formation of liquid phases differs significantly from the agglomerate. Experimentally established changes in the composition of t
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25

Sivtsov, A. V., O. Yu Sheshukov, D. K. Egiazar’yan, M. M. Tsymbalist, and D. A. Lobanov. "Slag mode regulation in electric arc furnace based on electrical parameters control during melting oxidation period." Izvestiya. Ferrous Metallurgy 65, no. 9 (2022): 619–28. http://dx.doi.org/10.17073/0368-0797-2022-9-619-628.

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Анотація:
The results of observation of steelmaking oxidation stage at EAF-135 were analyzed with automated control system of the electrical characteristics. There are three main zones in the furnace working space, which differ by the aggregate state of the materials in them: arc discharge, melt and foamed slag. The distribution data of electric power over the furnace zones is given. There is active powers asymmetry of the arcs under single electrodes affected by asymmetry of the short network. It is shown that the main factors impacting the melt and slag resistances are oxygen blow and electrode moveme
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26

Perepelitsyn, V. A., K. G. Zemlyanoi, K. V. Mironov, A. A. Forshev, F. P. Nikolaev та D. V. Sushnikov. "Material composition and microstructure of ceramic glass й hearth of blast furnace No. 6 of JSC EVRAZ NTMK after service. Refractory microstructure after service". NOVYE OGNEUPORY (NEW REFRACTORIES), № 1 (31 травня 2023): 3–7. http://dx.doi.org/10.17073/1683-4518-2023-1-3-7.

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Анотація:
The results of a comprehensive study of the material microstructure of refractory samples after service in the furnace of a blast furnace with a useful volume of 2200 m3 for 14 years are presented. Structural and genetic analysis established a characteristic sequence of processes of degeneration and wear of the ceramic furnace stack, including 6 stages: the formation of micro-and macro-cracks; condensation of vaporous zinc; zinc oxidation with the formation of fire-resistant ZnO zincite and the deposition of carbon black by the; chemical interaction of zinkite with mullite and corundum to form
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27

Chew, Sheng Jason, Paul Zulli, Daniel Maldonado, and Aibing Yu. "Melt Down Behaviour of a Fused Layer in the Blast Furnace Cohesive Zone." ISIJ International 43, no. 3 (2003): 304–13. http://dx.doi.org/10.2355/isijinternational.43.304.

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28

Ivancha, M. H., O. S. Nesterov, I. H. Muravyova, et al. "Improvement of technological requirements for distribution of burden materials and gas flow in the operation of blast furnaces with low silicon content in pig iron and assessment of their implementation on modern blast furnaces." Fundamental and applied problems of ferrous metallurgy 37 (2023): 76–104. http://dx.doi.org/10.52150/2522-9117-2023-37-76-104.

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Анотація:
Reducing the silicon content in pig iron is one of the most effective ways to reduce fuel and reductant consumption in the blast furnace process. The challenges of smelting pig iron with low silicon content are associated with high ore burden and low solid fuel consumption, resulting in a reduction in the thickness of "coke windows" with a corresponding deterioration of the gas permeability of the burden column and a decrease in the stability of the melt descent. Additionally, there is a decrease in the thermal level of the cohesive zone, shifting its boundaries upwards in the furnace and incr
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29

Chai, Yi-Fan, Jian-Liang Zhang, Xiao-Jun Ning, Guang-Yun Wei, and Yu-Ting Chen. "Mechanism Research on Melting Loss of Coppery Tuyere Small Sleeve in Blast Furnace." High Temperature Materials and Processes 35, no. 1 (2016): 73–80. http://dx.doi.org/10.1515/htmp-2014-0149.

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Анотація:
AbstractThe tuyere small sleeve in blast furnace works under poor conditions. The abnormal damage of it will severely affect the performance of the blast furnace, thus it should be replaced during the damping down period. So it is of great significance that we study and reduce the burnout of tuyere small sleeve. Melting loss is one case of its burnout. This paper studied the reasons of tuyere small sleeve’s melting loss, through computational simulation and microscopic analysis of the melting section. The research shows that the temperature of coppery tuyere small sleeve is well distributed wh
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30

Zhao, Ding Guo, Shu Huan Wang, Xiao Jie Cui, and Jian Long Guo. "The Mechanism Research on the Refractory Material Corrosion in Material Engineering and its Applications." Advanced Materials Research 578 (October 2012): 142–45. http://dx.doi.org/10.4028/www.scientific.net/amr.578.142.

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Анотація:
The mechanism of refractory material corrosion was analyzed. The laboratory amorphous alloy smelting of the mother prefabricated crucible, reaction process is basically to crucible refractory material of blast furnace slag corrosion, melt corrosion is small. Generally smelting amorphous mother alloy was a difficult thing, and it shown that the basicity was better around 1.0. Compared with quartz refractory, it is good to choose the silicon carbide refractory materials, while smelting amorphous alloy.
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31

Mostafa, A., G. Pacher, T. Lucyshyn, et al. "Influence of Melt Compounding on Blast Furnace Slag Filled PP Compounds: A Comparative Study." International Polymer Processing 32, no. 4 (2017): 446–54. http://dx.doi.org/10.3139/217.3365.

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32

Yur'ev, Boris, and Vyacheslav Dudko. "Development of the Process for Obtaining Iron-Ore Pellets with Required Metallurgical Properties." Materials Science Forum 946 (February 2019): 450–55. http://dx.doi.org/10.4028/www.scientific.net/msf.946.450.

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Анотація:
We have studied the influence of oxidation-reduction reactions on the structure and strength behavior of the Kachkanar fluxed pellets both in their initial condition and during reduction. It has been discovered that at heating rates and temperatures found in industrial units the roasted pellets that are not oxidized to a full extent and are characterized by zonal structure do not meet the requirements imposed for the blast-furnace smelting raw materials. To develop a process that would ensure high metallurgical properties, we have analyzed the hematite dissociation reaction. It was found that
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33

Sagalakova, M. "ABOUT THE ANOMALOUS PROPERTIES OF BLAST IRON WITHOUT GRAPHITE EMISSIONS." Bulletin of the South Ural State University Series ‘Metallurgy’ 22, no. 1 (2022): 5–12. http://dx.doi.org/10.14529/met220101.

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Анотація:
The development of modern materials science provides for the constant search for new materials with higher properties. Expensive iron-nickel alloys, the so-called Invars, are currently widely used as such materials. Speaking about the structure and properties of cast iron, the influence of gases (hydrogen, nitrogen and oxygen) on the formation of its structure and properties is most often ignored. In the practice of obtaining cast iron castings, to impart the desired properties to cast iron, the treatment of the melt with various substances is often used. In addition to affecting the chemical
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34

Hu, Xinguang, Fengman Shen, Haiyan Zheng, Yongchun Guo, Xin Jiang, and Qiangjian Gao. "Effect of melt structure property on Al2O3 activity in CaO-SiO2-Al2O3-MgO system for blast furnace slag with different Al2O3 content." Metallurgical Research & Technology 118, no. 5 (2021): 515. http://dx.doi.org/10.1051/metal/2021076.

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Анотація:
With the shortage of high-quality iron ore resources, more and more attention has been paid to the blast furnace (BF) smelting of Al2O3-rich iron ore in recent years. Thus, investigation on the thermodynamics property of Al2O3-rich blast furnace slag was inevitable in order to produce high quality hot metal with low cost. In this paper, based on the determination of Al2O3 activity by reference slag method at 1873 K in previous study, the effect of the mechanism of slag structure property on Al2O3 activity in CaO-SiO2-MgO-Al2O3 system was discussed by Raman spectra analysis. It was found that t
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35

Pfeiffer, Andreas, Gerald Wimmer, and Johannes Schenk. "Investigations on the Interaction Behavior between Direct Reduced Iron and Various Melts." Materials 15, no. 16 (2022): 5691. http://dx.doi.org/10.3390/ma15165691.

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Анотація:
Since the European Union defined ambitious CO2 emission targets, low-carbon-emission alternatives to the widespread integrated blast furnace (BF)—basic oxygen furnace (BOF) steelmaking strategy—are demanded. Direct reduction (DR) with natural gas as the reducing agent, already an industrially applied technology, is such an alternative. Consequently, the melting behavior of its intermediate product, i.e., direct reduced iron (DRI), in either an electric arc furnace (EAF) or a submerged arc furnace (SAF), is of great interest. Based on the conditions in these aggregates, a test series to experim
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36

Onorin, O. P., N. A. Spirin, V. V. Lavrov, I. A. Gurin, and G. A. Fedotov. "Mathematical Model of the Movement of Charge Layers and Melt Accumulation in a Blast Furnace Hearth." Steel in Translation 53, no. 5 (2023): 439–44. http://dx.doi.org/10.3103/s0967091223050121.

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37

Kongoli, F., I. Mcbow, R. Budd, S. Llubani, and A. Yazawa. "Effect of oxygen potential and fluxing components on phase relations during sintering of iron ore." Journal of Mining and Metallurgy, Section B: Metallurgy 46, no. 2 (2010): 123–30. http://dx.doi.org/10.2298/jmmb1002123k.

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Анотація:
The optimal operation of the blast furnace depends considerably on the properties of the sinter fed into the furnace. As a result, the optimization of the sintering processes has a direct effect on the overall effectiveness of the iron making processes. In order to produce a good sinter special care needs to be taken in order to assure it has a good permeability and reducibility and it is able to retain these properties for a certain time. If the sinter starts to melt down early in the upper part of the blast furnace, where its solid state reduction is essential, permeability decreases, the ga
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38

Nogueira, Paulo F., and Richard J. Fruehan. "Blast furnace burden softening and melting phenomena: Part III. melt onset and initial microstructural transformations in pellets." Metallurgical and Materials Transactions B 37, no. 4 (2006): 551–58. http://dx.doi.org/10.1007/s11663-006-0038-3.

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39

Yang, Chao, Xue-feng She, Ru-yi Wang, Pei-fang Lin, Jing-song Wang, and Qing-guo Xue. "Analysis of the melting process of carbon-bearing pellets in iron bath, slag bath and graphite crucible." Materials Open Research 3 (May 16, 2024): 7. http://dx.doi.org/10.12688/materialsopenres.17650.1.

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Анотація:
Background With the increase in the amount of scrap steel in society, the proportion of electric furnace steelmaking is increasing year by year, especially in China. Due to the high Zn content, the electric furnace arc dust (EAFD) needs to be recovered by non-blast furnace process. Due to EAFD containing a large amount of zinc ferrite, it needs to be recovered by fire process. It is a promising process to melt the EAFD pellets to get the discount and zinc-rich secondary ash. Methods To clarify the melting behavior of pellets in the metallurgical process, the slag phase diagram and the effect o
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40

Wang, Yonghong, Jiang Diao, Bing Xie, Chenglin Qi, and Ping Du. "Melting–Dropping Property of Blast Furnace Charge on the Basis of Its Slag Formation Behavior." Metals 12, no. 6 (2022): 987. http://dx.doi.org/10.3390/met12060987.

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Анотація:
In order to reveal the melting–dropping property of a charged blast furnace (BF) and the mechanism of its slag formation, such as the temperature interval of slag formation, the pressure drop during the reduction process, and the K value of each sample, the soft melt drop experiment was tested in a large-capacity melting–dropping furnace. The results show that a positive linear relationship exists between the slag melting behavior and the melting–dropping property of the corresponding charge. The results indicate that owing to their poor melting–dropping property, single iron ores are not suit
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41

Bahfie, Fathan, Azwar Manaf, Widi Astuti, Fajar Nurjaman, and Ulin Herlina. "Tinjauan teknologi proses ekstraksi bijih nikel laterit." Jurnal Teknologi Mineral dan Batubara 17, no. 3 (2021): 135–52. http://dx.doi.org/10.30556/jtmb.vol17.no3.2021.1156.

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Анотація:
Bijih nikel laterit merupakan mineral yang mengandung senyawa oksida besi-nikel. Teknologi pengolahan nikel laterit secara umum ada 3 metode yaitu hidrometalurgi, pirometalurgi dan reduksi selektif. Hidrometalurgi merupakan metode yang menggunakan pelindian dan larutan seperti asam untuk mengekstraksi nikel laterit. Metode dengan pelindian asam yang bertekanan adalah metode yang paling optimal untuk mendapatkan nikel dengan grade dan recovery tertinggi. Akan tetapi metode ini memiliki dampak pencemaran lingkungan akibat hasil proses pelindian dan waktu yang lama. Metode yang kedua, yaitu pirom
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42

Stukov, M. I., A. Yu Chernavin, V. A. Kobelev, D. A. Chernavin, and K. P. Ivashinenko. "Complex of methodologies and laboratory equipment for determination of coke and slags properties in smelting zone of blast furnace." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 75, no. 2 (2019): 182–88. http://dx.doi.org/10.32339/0135-5910-2019-2-182-188.

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Анотація:
Information about character of burden materials behavior inside a blast furnace at its different horizons enables to increase control efficiency of BF heat running. The elaborated complex of methodologies for carbon materials and iron ore raw materials properties study enables to simulate their behavior at the horizon of iron ore materials reducing, in the viscoplastic zone, at the horizon of iron ore raw materials smelting and its interaction with coke filling. A vertical electric resistance shaft furnace with a tube carbon heater was used as a base equipment for simulation of burden behavior
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43

Kaushik, P., and R. J. Fruehan. "Mixed burden softening and melting phenomena in blast furnace operation Part 3 – Mechanism of burden interaction and melt exudation phenomenon." Ironmaking & Steelmaking 34, no. 1 (2007): 10–22. http://dx.doi.org/10.1179/174328106x118161.

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44

Li, Yun-Fei, Zhi-Jun He, Wen-Long Zhan, et al. "Relationship and Mechanism Analysis of Soft-Melt Dropping Properties and Primary-Slag Formation Behaviors of the Mixed Burden in Increasing Lump Ore Ratio." Metals 10, no. 9 (2020): 1254. http://dx.doi.org/10.3390/met10091254.

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Анотація:
At present, cost reduction and environmental protection are the mainstream of blast furnace (BF) development and the high lump ore ratio is an effective means. Therefore, it is significant to explore the relationship and mechanism of burden soft-melt dropping and its primary-slag formation behaviors under increasing lump ore ratio. In this paper, the melt–drop test is carried out on the single ore and mixed burden, and obtained primary-slag properties are subjected to analysis. The experimental results show that the primary-slag of lump ore contains a large amount of FeO and SiO2, so it simply
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45

Cheremisin, D. D., S. A. Novokreschenov, V. S. Shvydkiy, and V. P. Zhukov. "Mathematical modelling of the thermal regime of a ladle- furnace unit considering internal heat sources." Proceedings of Irkutsk State Technical University 25, no. 4 (2021): 509–18. http://dx.doi.org/10.21285/1814-3520-2021-4-509-518.

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Анотація:
We apply mathematical modelling to study heat transfer processes during fire refining of blister copper in a ladle-furnace unit. A ladle-furnace unit was designed to test the refining technology using bottom blowing in a bubble mode by gaseous reducing agents (hydrocarbons) and an oxidiser. Mathematical modelling allows the properties of a real process to be described based on mathematical formalisation of physical laws and regularities. It was proposed to use gaseous reducing agents, rather than expensive residual fuel, as a liquid-reducing agent. The use of gaseous reducing agents in the bot
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46

Andersson, Anton, Mats Andersson, Elsayed Mousa, et al. "The Potential of Recycling the High-Zinc Fraction of Upgraded BF Sludge to the Desulfurization Plant and Basic Oxygen Furnace." Metals 8, no. 12 (2018): 1057. http://dx.doi.org/10.3390/met8121057.

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Анотація:
In ore-based steelmaking, blast furnace (BF) dust is generally recycled to the BF via the sinter or cold-bonded briquettes and injection. In order to recycle the BF sludge to the BF, the sludge has to be upgraded, removing zinc. The literature reports cases of recycling the low-zinc fraction of upgraded BF sludge to the BF. However, research towards recycling of the high-zinc fraction of BF sludge within the ore-based steel plant is limited. In the present paper, the high-zinc fraction of tornado-treated BF sludge was incorporated in self-reducing cold-bonded briquettes and pellets. Each type
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47

TRAVYANOV, A. YA, and A. S. KALININ. "CHANGES IN STRENGTH AND REDUCIBILITY OF IRON ORE SINTERS WITH INCREASING BASICITY." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 78, no. 6 (2022): 496–501. http://dx.doi.org/10.32339/0135-5910-2022-6-496-501.

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Анотація:
Improving the quality characteristics of iron ore materials is one of the most effective ways to reduce fuel consumption in pig iron production, improving the technical and economic performance of the blast furnace process. The quality of finished products depends on a whole range of technological parameters, advancing along its chain, it is possible to identify the process of formation and nucleation of minerals, because it is the mineral composition of the ore grains bundle that determines and influences of many pyrometallurgical processes, being the main carrier of the strength of fluxed si
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48

Wallace, Colleen, Steve Fatur, Trevor Braun, and Sam Frey. "Electrochemical Ironmaking for Green Steel: Turning Low-Grade Ore into High-Purity Iron." ECS Meeting Abstracts MA2024-02, no. 25 (2024): 2013. https://doi.org/10.1149/ma2024-02252013mtgabs.

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Анотація:
The production of steel accounts for approximately 7% of global carbon dioxide emissions, the majority of which is produced during the conversion of iron ore to iron metal (“ironmaking”). Conventional ironmaking predominantly utilizes blast furnaces which melt iron ore with coal and other minerals to produce crude steel. The effort to decarbonize is pressuring high emissions processes, like ironmaking, to transition to low-carbon alternatives. To achieve this goal, Electra has developed an acidic electrolysis-hydrometallurgical ironmaking process (Figure 1) that operates at low temperatures (~
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49

Belov, B., A. Trotsan, and O. Vlasova. "ANALYSIS OF THE STRUCTURAL-CHEMICAL MILL DUPLEX-SYSTEMS OF SILICATE-SILICIDE OF LUNG-EARTH METALS. Message 3. The mechanism of desulfurization in the smelting of blast-furnace pig iron." Casting processes 152, no. 2 (2023): 33–40. http://dx.doi.org/10.15407/plit2023.02.033.

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Анотація:
The mechanism of cast iron desulfurization through structural and chemical reactions in smelting slags corresponding to the composition of the main mineral phases is presented: monticellite (MT, SiO2MgOCaO) → mervinite (MP, 2SiO2MgO3CaO) → ockermannite (OK, 2SiO2MgO2CaO) →diopside (DP, 2SiO2MgOCaO) → rankinite (pH, 2SiO23CaO) and eutectic slags (E, 3SiO2MgO4CaO). A sequential series of adsorption capacity of slag phases with respect to sulfur (АС, mas. %) and the depth of metal desulfurization – Δ(S), ppm was determined: Е (3.54/36) → MR (4.8/49) → OK (5, 7/59) → DP (7.14/74) → MT (9.8/103) →
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50

Piepjohn, Karsten, Solveig Estrada, Lutz Reinhardt, Werner von Gosen, and Harald Andruleit. "Origin of iron-oxide and silicate melt rocks in Paleogene sediments of southern Ellesmere Island, Canadian Arctic Archipelago, Nunavut." Canadian Journal of Earth Sciences 44, no. 7 (2007): 1005–13. http://dx.doi.org/10.1139/e07-005.

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Анотація:
Between Vendom Fiord and Makinson Inlet on southern Ellesmere Island, Canadian Arctic Archipelago, Nunavut, isolated and fault-bounded Early Tertiary basins are exposed. The basin deposits are Paleocene to Eocene in age and overlie unconformably folded Ordovician and Silurian carbonates of the Paleozoic Franklinian Basin that were affected by intense, pre-Paleocene weathering and karstification in places. The Tertiary sediments consist mainly of dark unconsolidated sand and silt and are interbedded with many centimetre- to metre-thick coal seams. In several places, round orange and red "spots"
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