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Scale briquets with a cement binder can be effectively used as a washing material for blast furnaces, which will make it possible to end the production of washing sinter, increase the productivity ...
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The Blast Furnace Simulator (BFS) used in this study is illustrated in Fig. 1 (a). This schematic depicts the experimental setup, including the apparatus specifically designed to measure the softening and melting behaviors of the burden materials. ... The precise determination of the reduction degree of sinter ore within the Blast Furnace ...
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The study also showed that results obtained for a mixed burden of 80% sinter and 20% lump ore - a ratio used in many blast furnaces - are not different to results obtained from tests using only ...
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the blast furnace. The sintering process was widely studied in: † Fernández-González et al. (2017a): Iron ore sintering: Raw materials and granulation, where the concentration techniques used in the case of the iron minerals are described, as …
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On the one hand, due to the use of some wastes in the blast furnace ironmaking process, such as adding blast furnace dust or ash in the sintering process, and reducing the land space. On the other hand, the blast furnace ironmaking process consumes solid materials and also generates a variety of high value-added gases, which is also beneficial ...
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The sinter is cooled, crushed, and screened before use as a raw material input for blast furnaces. Key aspects of the sinter plant like the mixer, nodulizer, sinter machine, cooler and screens are explained.
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Softening–melting (SM) experiments have been carried out by using sinter basicity (CaO/SiO2) 1.74 to 2.09 and alumina content 2.90 to 3.39%. The objective of the work is to find the relation between sinter basicity and alumina on SM temperature range, so that we can improve the furnace performance. The increase in basicity of sinter from 1.74 to 2.09 at …
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Use of Nut Coke in a Blast Furnace. Metallurgical coke also called blast furnace (BF) coke plays an important role in the stable operation of the BF. ... A study carried out on the influence of sinter and coke layers thickness and sinter-nut coke mixture on the gas permeability at temperatures in the range of 1,100 deg C to 1,600 deg C has ...
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tion degradation behavior of sinter and pellets9). 3. Improvement of Blast Furnace Operation through Improvement of Sinter Quality 3.1 Improvement of blast furnace operation by decreasing SiO 2 and MgO contents in sinter As seen with Figs. 1 and 2, the studies confirmed the excellent reduction behavior of high-Fe sinter at high temperatures. Aiming
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Sintering is one of the main methods of preparing raw iron ore materials for blast furnace smelting. Without high-quality sinter, implementing modern energy-saving technologies in blast furnace …
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If above expected quality sinter will be replaced with iron ore in blast furnace, maximum ratio (80 - 85 %) of sinter can be used safely. Production cost of the sinter has to be considered while …
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Proportion of MnO sinter used in Chinese blast furnaces in 1994-95 [4]. Results obtained by agglomeration of ore fines through sintering show clear improvements in coke consumption, Mn yield and productivity. As an example, in table 4 the evolution of several indices along a year, as the proportion of sinter in the charge increased from 60 to ...
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The experiments are conducted isothermally with a blast furnace simulator (BFS) high-temperature furnace at four different temperatures (700, 800, 900, and 1000 °C) for 300 min. The experimental atmosphere consists of …
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Fluxed sinters have superior high temperature properties in the blast furnace as compared to lump ore and acid sinters. These improvements include higher softening and melting temperatures and higher levels of …
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Shyam Metalics and Energy Ltd. (SMEL) has formally commissioned a new blast furnace and established a sinter plant at its Jamuria location. This important new venture, which will require an investment of Rs. 600 crore, will aim at enhancing capacity as a means of meeting the growing demand of all forms of superior steel for use in various industries.
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If stock sinter must be used in the blast furnace, it should be charged in a controlled fashion, and diluted with as much fresh sinter as is possible, such as by using a dedicated bin in the stockhouse to stock sinter. – Cold strength: normally measured with a tumbl e test. Te more energy that is used in the sinter process, the stronger the ...
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The resulting sinter is suitable for use as a blast furnace burden material, but is not sufficiently strong to withstand long distance transportation. As a result, sintering plants are normally ...
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Learn about the technology used in sintering, the process that converts fine-sized raw materials, including iron ore, limestone, etc. into …
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The integrated iron and steelmaking route involves blast furnace (BF) ironmaking followed by basic oxygen furnace (BOF) steelmaking. The BF uses sinter, pellets, and lump ore as iron-bearing raw materials, and coke and pulverized coal as fuel and reducing agents to produce hot metal with consistent quality for the BOF process.
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The sintering process plays a pivotal role in the ironmaking technology chain by producing high-quality sintered ore crucial for blast furnace smelting, meeting over 70 % of the total demand [1, 2].Nonetheless, the sintering process is exceedingly energy-intensive, contributing to approximately 6–10 % of the steel industry's overall energy consumption.
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Abstract: The basicity required for iron ore sinter is set by blast furnace slag composition requirements, and therefore varies with the proportion lump iron ore in the burden. Increasing …
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The function of the Sinter Plant is to supply the blast furnaces with sinter, a combination of blended ores, fluxes and coke which is partially 'cooked' or sintered. In this form, the materials combine efficiently in the blast furnace and allow for more consistent and controllable iron manufacture. Figure 1 shows a simplified diagram of a ...
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As an example, in table 3 the percentage of sinter used in certain Chinese plants at certain time, is detailed. Plant Xinyu Saoxin Yangkuan Bayi Guilin Xinyang Langfang Wujing Average Sinter % 66.1 7.8 39.2 48.7 63.1 34.5 41.2 31.2 40.5 . Table 3. Proportion of MnO sinter used in Chinese blast furnaces in 1994-95 [4].
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The basicity of sinter was fixed on the basis of percentage of sinter charged in blast furnace. The level of silica in sinter was decided depending upon the end use of hot metal produced for steelmaking or for foundry purpose. The MgO content in sinter is based on the blast furnace slag composition. All limestone and dolomite is added in sinter ...
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grade coke and iron ore (sinter usage is difficult). Mini blast furnaces are becoming increasingly ... According to a published report some typical characteristics of raw materials used in Chinese Mini Blast Furnaces (MBFs) are given below: Chemical Analysis (%) Iron Ore Sinter Fe 40-45 53-54 FeO-- 11-12 CaO 8 10.5-12 SiO2 13-14 8.5-9 Al2O3 2 ---
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In addition, a three-dimensional blast furnace mathematical model was used to predict and calculate the amount of CO 2 emission and was reflected in the operational design of the test blast furnace. As a result, reducing ... As with an actual blast furnace, sinter and lump ore, slag composition adjusting flux, and lump coke are drawn from raw ma-
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A study is made of the effect of the addition of dolomite to the charge used in sintering a mixture of Mikhailovskii and Lebedinskii concentrates and Bakal and Mikhailovskii ores. The size of the dolomite addition is optimized from the standpoint of ensuring efficient operation of the blast furnace and avoiding any reduction in the strength of the sinter.
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There the cooled sinter material is downsized to be used in three different applications namely (i) return fines to the sinter process, (ii) hearth layer, and (iii) for use in blast furnace burden.
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Compared to the conventional blast furnace case, NBLL lump and sinter show a lower degradation for the H2 injection case while it was the opposite for the pellet, suggesting the necessity of ...
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Proportion of MnO sinter used in Chinese blast furnaces in 1994-95 [4]. Results obtained by agglomeration of ore fines through sintering show clear improvements in coke consumption, Mn yield and ...
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