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 ...
repose pellets distribution during charging with other materials in blast furnace creates inhomogeneous distribution. 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 sin-
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 ...
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 …
The burden distribution in the blast furnace has a major impact on the process and its stability. The iron bearing burden consists usually of several components, such as sinter, pellets, lump ore ...
MgO participates in all stages of sintering, pelletizing, and blast furnace ironmaking, and synergistically optimizing the distribution of MgO in ferrous burden can effectively enhance the interaction within the ferrous burdens and optimize the softening–melting properties of the mixed burden. Magnesium-containing pellets mixed with low-MgO sinter or mixed with …
The physicochemical behaviour of pellets, sinter and its mixture (60% pellet:40% sinter) is investigated under simulated blast furnace conditions in the reduction, softening and …
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of Brazilian sinter fines, as well as concentrates and some blast furnace screened return fines. The chemical analyses and size distribution are listed in Tables 1 and 2. Figure 1 shows graphically the favorable size distribution of the pellet screenings, which is coarser than the other ores. For the adjustment of the sinter chemistry, limestone,
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 ...
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.
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 ...
2.1. Pelletization. Schematic of the experimental is presented in Fig. 1.A part of dry Noamundi iron ore fines was ground for 18 minutes to –45 μm (56% approx).The size distribution and Blaine fineness of it is shown in Table 5.The iron ore fines along with 0.5% bentonite binder were mixed with pyroxenite fines and other additives like coke fines, LDS etc. in varying quantity.
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 …
Yu & Saxén [51] also found this trend in their study of pellet charging, but they reported that the degree of segregation was much less compared to sinter due to the relatively narrow size ...
To study the distribution of ferrous burden (which is a mixture of pellets and sinter) in the blast furnace, the burden must be characterised in terms of input parameters which can be used in ...
In numerical simulations of the blast furnace, the discrete element method (DEM) is a quite novel method. The accuracy of physical parameters of the method is a key issue for the reliability of the results. In this study, we first measured the parameters describing the interaction between pellets, sinter and coke, as well as between these three materials and a steel plate.
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 ...
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 ...
Pellet" typically refers to small, solid particles formed into a rounded or cylindrical shape. These are commonly used in industries such as agriculture, pharmaceuticals, and metallurgy. "Sinter" describes a solid mass created by heating powdered material just below its melting point until the particles adhere to each other.
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 …
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 ...
Agglomeration processes are typically of three types: pelletizing, briquetting, and sintering. Sintering is a manufacturing technology to make a wide variety of engineering …
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 …
To study the distribution of ferrous burden (which is a mixture of pellets and sinter) in the blast furnace, the burden must be characterised in terms of input parameters which can be used in ...
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 ...
Bed permeability is a crucial factor in blast furnace performance which depends on the material distribution achieved through charging. Since a homogeneous bed of pellet and sinter is recommended ...
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 ...
