Effect of concentrate and micropellet additions on iron ore …

A. M. Garbers-Craig. With the depletion of high-grade lump iron ore, concentrates have been identified as an alternative material for sinter making. In this …

Evaluation of Iron Ore Concentrate and Micropellets as …

micropellet-rich sinters showing a higher degree of degradation compared to concentrate-rich sinters (increasing RDI-3.5 mm and RDI-0.5 mm). It would therefore be viable to …

A Novel Sintering Process for Porous Iron Ore Sintering …

The present work proposes a novel process to sinter porous iron ore (porosity ~23–24%) with enhanced productivity and quality. The iron ore is pre-processed in the presence of calcined lime for the temporary closure of pores, which further prevents water absorption during the granulation process in drum in the presence of water. The …

Iron Ore Sintering: Raw Materials and Granulation

Abstract and Figures. Sintering is an agglomeration process that fuses iron ore fines, fluxes, recycled products, slag-forming elements and coke. The purpose of sintering is to obtain a product ...

Voidage of ferrous sinter beds: new measurement technique …

In this study, the effect of concentrate and micropellet additions on … Expand. 19. Highly Influenced. 7 Excerpts ... The iron ore sintering process produces the main iron-bearing material for blast furnaces in most integrated steel mills. ... The permeability of mixes before ignition and during sintering was examined using a …

Disposal of zinc extraction residues via iron ore sintering

The iron ore sintering process has the capability to handle and utilize complex raw materials, allowing for the reasonable utilization of zinc extraction residue. The addition of zinc extractant has been found to improve the sintering index, metallurgical properties, and gaseous pollutant emissions without significant negative effects.

DEM study on size segregation and voidage distribution in …

DOI: 10.1016/j.powtec.2019.09.014 Corpus ID: 203138712; DEM study on size segregation and voidage distribution in green bed formed on iron ore sinter strand @article{Li2019DEMSO, title={DEM study on size segregation and voidage distribution in green bed formed on iron ore sinter strand}, author={Chengzhi Li and Tom Honeyands …

Effect of Concentrate and Micropellet Addition on Iron Ore Sinter …

The sinter strand process consists of a moving grate onto which is loaded the raw material in the form of micropellets composed essentially of iron ore fines, coke, water and rejected sinter ...

Iron Ore Sinter

Automated optical image analysis of natural and sintered iron ore. E. Donskoi, ... J.R. Manuel, in Iron Ore, 2015 4.2.2 Sinter. Low-temperature (< 1300 °C) iron ore sinter is an agglomerate of unmelted and partially melted nuclei particles (+ 1 mm) and a matrix bonding phase produced from the melting of fine ore (− 1 mm) and flux particles, with …

Relationship Between Iron Ore Granulation Mechanisms

The relationship between iron ore granulation mechanisms, granule shapes, and sinter bed permeability were tested (Nyembwe, Cromarty & Garbers-Craig, 2017) and the complete modelling of the ...

Iron ore sintering

Like other sintering processes, iron ore sintering converts iron ore fines of often − 8 mm sizing into larger agglomerates, namely, sinter, between 5 and 50 mm particle size, which possess the physical and metallurgical characteristics and gas permeability required for efficient blast furnace operation.As shown in Figure 14.1, iron ore sintering …

Development of fluxed micropellets for sintering …

high lime containing micropellets may be exploited for making super fluxed sinter that can be used as synthetic flux in the basic oxygen furnace process towards the formation of …

Multi-objective Optimization of Integrated Iron Ore Sintering …

In the iron ore sintering process, it is desirable to maximize the productivity and quality of sinter while minimizing the fuel consumption for any given raw material (iron ore, flux and solid fuel) quality. However, given the complexity of the sintering process and the large number of manipulated variables, it is not practical for operators to identify …

(PDF) Iron Ore Sintering: Process

The sintering process, depicted in Figure 1, involves the application of heat to fine iron ore particles, transforming them into coarser grains [16]. Firstly, various raw materials, including iron ...

Operating mode recognition of iron ore sintering process …

Sintering is a thermal agglomeration process, and its main raw materials are iron ore, returning sinter ore, fluxes, and coke (Fernández-González, Ruiz-Bustinza, Mochón, González-Gasca, & Verdeja, 2017). The high energy consumption and serious pollution associated with the sintering process have always been an important concern …

Application of deep learning in iron ore sintering process: a …

The sintering process is an intricate system with a protracted process flow. The steps in the manufacturing line are primarily composed of the ingredients and mixing process, the sintering operation process, and the treatment of the sintered ore [39, 40].2.2 Important parameters and characteristics of sintering process. As shown in Fig. 2, all …

Development of fluxed micropellets for sintering utilising …

Developed micropellets have possible use in sintering for preparation of low melting synthetic flux when they contain high lime (30–40%CaO) and in BF quality sinter making (mixing with iron ore fines) when they contain low lime.

Preparation of Iron Ore Micro-pellets and Their Effect on …

en/161/micropellet before iron ore sintering.md at main

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Combustion mechanism of benzene in iron ore sintering …

The iron ore sintering process is the main source of VOCs emission in the iron and steel industry, and its VOCs emission accounts for about 69.6% . The organic compounds in the solid fuel and the oil components from the raw materials such as rolling oily sludge are pyrolyzed in the preheating layer (150–900 °C) to produce VOCs [ 9, 10 ].

Iron Ore Sintering: Process

Sintering is a thermal agglomeration process that is applied to a mixture of iron ore fines, recycled ironmaking products, fluxes, slag-forming agents, and solid fuel (coke). The purpose of the sintering process is manufacturing a product with the suitable characteristics (thermal, mechanical, physical and chemical) to be fed to the blast furnace.

Prediction of sinter yield and strength in iron ore sintering …

Iron ore sintering is a complicated thermo-chemical process which involves a vast amount of chemical reactions and physical changes. Feed materials which contain ores, coke, flux, gangue, returned mines, and etc. are granulated and charged into the sintering machine. ... Before constructing the model, some reasonable assumptions …

Effect of concentrate and micropellet additions on iron ore …

Effect of concentrate and micropellet additions on iron ore sinter bed permeability. Robert Cromarty. 2016, Mineral Processing and Extractive Metallurgy. See Full PDF. Download …

Prediction of Sinter Properties Using a Hyper-Parameter …

HPS can be treated as an environmentally sustainable process as we can utilize iron ore fines and consume less coke, which is the need of the hour. (ii) The hyper-parameter-tuned ANN model showed a prediction accuracy of over 99% and an MSE of 2.78 × 10 –4. It offers the high accuracy of the proposed prediction model.

An efficient method for iron ore sintering with high-bed …

It can be seen from Tables 1 and 2 that the blend with high iron grade has a high content of FeO (14.51 wt.%) because it consisted of 70 wt.% magnetite concentrate and 30 wt.% fine ore. The coke breeze has high fixed carbon content (83.37 wt.%) and low volatile matter content (1.57 wt.%). 2.2 Methods. The double-layer sintering process is …

Development of fluxed micropellets for sintering utilising iron …

Ultrafine iron oxide wastes such as slime, blue dust and Linz–Donawitz (LD) converter sludge have very limited use in sintering of iron ore due to their excessive fineness (−50 μm). Pelletisation of these ultrafine materials for use in blast furnace involves high temperature curing, which is a highly energy intensive process. Briquetting of LD …

Recent advances in iron ore sintering

Abstract. Sintering is the most economic and widely used agglomeration process to prepare iron ore fines for blast furnace use. Owing to the depleting reserves of traditional high grade iron ore, there …

(PDF) Relationship Between Iron Ore Granulation …

of concentrate and micropellet additions on iron ore sinter bed Blott, S. J. and Pye, K., 2008, "Particle shape: a review and new methods permeability." Mineral Processing and Extractive Metallurgy, 125, pp. of characterization and classification." Sedimentology, 55, pp. 31–63 178–186.