Request PDF | Optimizing MgO distribution between sinter and pellet based on melting behavior and interaction | During blast furnace ironmaking, MgO flux is added to the sinter or pellets to ...
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Fig. 15 a-c show the effects of e P-S, μ s P-S and μ r P-S, respectively, on the number fraction of pellet-pellet, sinter-sinter and pellet-sinter contacts. In each plot, the value of one parameters is varied from 0.1 to 0.9 while the values for the other two interaction parameters were kept at 0.5.
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Inactualblastfurnaceproduction,theburdenstructureof"sinter+pellet+block ore" is used in blast furnace in China. The shapes of sinter and pellet are quite different.Theangleofreposeofsinteris29°–33°andthepelletis25°–26°.Therefore, the proportion of pellet will affect the angle of repose of ore and further affect the
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The chemical analysis and particle size distribution for the iron ore fines and the pellet fines used for the sinter pot trials are shown in Tables 2 and 3 respectively. Table 4 shows the iron ore blend mix proportion and mean particle size (MPS) for the iron ore blend for all the experiments. The high Fe and low LOI concentrate within the pellet fines compared to other …
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The present study investigated the influence of high proportions of pellet feed (two different particle sizes) on the cold agglomeration behaviour of a sinter mixture and the …
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Hatch has compared the merits of using sinter and pellets in the blast furnace to help steel producers evaluate the impact of increased pellet usage in the blast furnace burden. 2.2 Comparing Sinter and Pellets Sinter and pellets are agglomerated forms of iron ore, both suitable for use as blast furnace burden materials.
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Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. DOI: 10.1002/srin.202000047 Ablast furnace (BF) is the dominantprocess formaking iron in the world. The BF is charged with metallurgical coke and iron burden materials including iron ore pellets, sinter, and ...
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The main research content and originality of the work includes, (1) the movement behavior of sinter, pellets and mixed burden with different pellet ratios from the chute to the pile was investigated, (2) the distribution characteristics of mixed burden with different pellet ratios in the pile were analyzed, and (3) the segregations of sinter ...
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in the world. It takes solid raw materials which are sources ... KEY WORDS: blast furnace; burden distribution; pellet; sinter; discrete element method; hopper flow. the gas and molten metal to ...
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Fig. 12 presents the mass percentage distribution of pellets and sinter in the radial direction of the furnace throat when the pellet ratio is 20%, 40%, 60% and 80%, respectively. In the area near the center of the furnace throat, such as the radial positions 1, 2 and 3, the mass percentage of pellets is relatively high which is greater than ...
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The permeability of the sintering process can be significantly improved by the pellet sintering, but the excessive permeability will impact the heat accumulation of the sinter bed. Thus, it is very essential to clarify the influence of the pellet particle size on the heat transfer process of sintering. Therefore, pilot-scale sinter pot tests of pellet sintering with manganese …
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This research work focuses on the reduction behavior of iron ore pellets, sinter, and lump ore in simulated BF shaft conditions where H 2 and H 2 O are present in typical CO CO 2 N 2 atmospheres. 2 Experimental Section. Sinter, lump ore, and iron ore pellets were used in experiments. The composition for all three materials is shown in Table 1.
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Measurement and simulation validation of DEM parameters of pellet, sinter and coke particles. Author links open overlay ... is the principal process for production of pig iron in the world. Recently, due to a tougher competition and higher requirements of environmentally friendly operation of the plants, reliable control of large BFs has become ...
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pellet quality and size distribution is paramount for the gas permeability of the pellet bed in the furnace and thus for product quality, energy consumption and process stability. Our proven …
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The optimum moisture content and particle size distribution are two decisive factors for green pellets formation. The moisture interferes with two important properties of green …
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To make full use of the available heat accumulation and adjust the pellet distribution, a good energy saving effect is obtained because the coke breeze mass declines by 13.91 kg/t-sinter. …
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Pellet feed and sinter feed showed a high amount of fine particles (8–20% dp<10 mm) and a low pore volume (Vpore<10 mm). ... were transported around the world using bulk carriers, more than any ...
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Effect of pellet-sinter mass ratio. To examine the effect of the pellet-sinter mass ratio on the parameter's significance, we compared the dominant parameters between the L1 configuration (i.e., with a mass ratio of 50/50), L75/25, and L25/75 in Table 4. Our findings suggest that the mass ratio has some influence on the dominant parameters for ...
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Approximately 10% of anthropogenic CO 2 emissions in the world derive from the iron and steel ... studied the low temperature reduction disintegration properties of sinter, pellet and lump ore for BF process also concluded that RDIs ... The crack distribution density of reduced pellets decreased to 10.4% and 13.6% respectively as SiO 2 and CaO ...
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In order to alleviate the above problem, a composite mass of acid pellet and basic sinter has been developed, wherein; green pellets made-up of microfines were mixed with basic sinter mix and ...
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In addition, it is easier to control the burden distribution in the blast furnace throat with sinter compared to pellets [7, [21][22][23] since the small and round shape and high density of ...
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Find and fix vulnerabilities Codespaces
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Blast furnaces are widely used around the world in the iron and steel making industry for producing molten iron. ... [14], [15]. Sinter generally has a wider size distribution than pellets, which makes it more susceptible to size segregation [16], [17]. Pellets, owing to their comparatively narrower size distribution and near spherical shape ...
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Reduction reactions of iron ore between gas and raw material are determined by material bulk, especially radial distribution of pellet/sinter and coke in blast furnace. An appropriate control of material distribution is required to yield a smooth operation with effective performance and an appropriate gas flow at the wall. This paper studies two different DEM packages application for …
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Abstract A blast furnace (BF) is the dominant process for making iron in the world. The BF is charged with metallurgical coke and iron burden materials including iron ore pellets, sinter, and lump ore. While descending in the BF the charge materials reduce. The iron‐bearing materials should reduce fast and remain in the solid form until as high a temperature as possible to …
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