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 ...
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 ...
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 …
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 ...
The porosity distribution of burden beds has an important influence on the gas flow distribution and chemical reactions in the blast furnace, while the initial porosity distribution in the top part of the furnace is determined by the original burden distribution.In this work, the layers of sinter and coke in the throat region were established to investigate the effect of multiple …
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 ...
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.
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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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 …
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 ...
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 …
3 Figure 2. Projected Product Sales Distribution for the Global Seaborne Iron Ore Trade. (1) The increasing importance of fired pellets and pellet feed in the global seaborne trade
Global iron ore production has grown dramatically in recent years to meet increasing world steel demand, especially in Asia. High grade lump ore resources are being …
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 ...
A good blast furnace burden consists, for the major part, of sinter and/or pellets (Figure 3.1, next page). Sinter burdens are prevalent in Europe and Asia, while pellet burdens are used more commonly in North America and Scandinavia. Many companies use sinter as well as pellets, a lthough the ratios vary widely. 20 IIIChapter Sinter 90 % < 25 ...
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 ...
Raw materials. Commercially supplied iron ore pellets and sinter of size range 10–13 mm are utilised in the present study. Comparable to the utilisation in the industrial blast furnace, two types of olivine fluxed pellets (types 1 and 2) and one type of iron ore sinter are mixed in 40:20:40 ratio to form a ferrous raw material bed.
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 ...
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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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 …
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.
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.
While there are several studies on blast furnace charging using pellet-sinter mixtures [11,12,13,14,15,16], the interaction parameters between pellet and sinter were assumed rather than determined ...
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 …
Agglomeration processes are typically of three types: pelletizing, briquetting, and sintering. Sintering is a manufacturing technology to make a wide variety of engineering …
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.
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 ...
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 …