Optimizing the operation of straight-grate iron-ore pellet induration …
Mathematical models of straight-grate pellet induration processes have been developed and carefully validated by a number of workers over the past two decades. However, the subsequent exploitation of these models in process optimization is less clear, but obviously requires a sound understanding of how the key factors control the operation. In this …
Modeling and simulation of iron ore pellet drying and induration …
ABSTRACT As key parameters of modeling iron ore pellet drying and induration process, the properties of a packing bed are calculated by our proposed method. Derived from realistic spheres-dropping phenomena, the dropping and rolling rules make the moving sphere finally reach its minimum gravitational potential energy. …
(PDF) IRON ORE PELLETIZING PROCESS
Figure 2: Ratios of pell ets produced by different. pelletizing processes in China in 2000 and 201 1. T ab le 1: Main producers of iron ore pellets in. the w orld between 2010 and 2012 (Mt per ...
Review on mathematical models for travelling-grate iron …
Scheme of the iron ore pellet induration process in a travelling-grate. Several mathematical models describing the induration process have been developed over the last 50 years. Despite being a topic of research for a long period, a relative small amount of journal papers is available in the main academic databases.
Effect mechanism of aluminum occurrence and content on the induration …
With the intensified depletion of high-grade iron ores, the increased aluminum content in iron ore concentrates has become unavoidable, which is detrimental to the pelletization process. Therefore, the effect mechanism of aluminum on pellet quality must be identified. In this study, the influence of aluminum occurrence and content on the …
Multi-objective optimization of iron ore induration process …
Successful emulation of induration process resulted in 10-fold speed increment in optimization through surrogate models. To justify the parsimonious …
Dynamic simulation of pellet induration process in …
The latter process that was primarily developed by Lurgi and is currently owned by OutoKumpu Technology, accounts for two thirds of the world's installed pelletizing processes capacity. This study is focused on simulation of pellet induration process in the straight-grate system. Description of Induration Process in Straight-Grate Machine
Virtual indurator: A tool for simulation of induration of wet …
Pelletization of iron ore fines is an important step in an integrated steel plant. It essentially involves balling of fine powders on a rotating disk or drum to produce wet …
Successive approximate model based multi-objective
A phenomenological process model of iron ore induration process in industrial straight grate furnace has been developed (Majumder et al., 2009) for this work. The major phenomena that occur during the induration process, e.g. changes in the thermal profile of the pellets, drying and re-condensation of moisture in wet pellets, coke …
Modeling and simulation of iron ore pellet drying and …
Read this article. As key parameters of modeling iron ore pellet drying and induration process, the properties of a packing bed are calculated by our proposed …
Optimization of Induration Cycle for Magnetite Concentrate …
In the magnetite iron ore pelletization process, oxidation of magnetite followed by sintering of the oxidized magnetite (hematite) is desirable. Optimum preheating time & temperature and roasting time & temperature is required to get the desired properties of the pellets with magnetite, hematite, and hematite–magnetite blend. In order to utilize …
Mathematical model for a straight grate iron ore pellet induration …
A mathematical model for a pilot scale induration furnace for iron-ore pellets has been presented by Kucukada et al. [15]. Cross and Blot [6] have used the induration process model to evaluate the suitability of the first drying zone with the updraft or downdraft gas flow streams.
A Mathematical Model for Straight-Grate Iron Oxide Pellet …
Iron ore pellet making process involves balling of green mix (containing iron ore fines, binder, limestone and coke) using rotating disk or drum to produce green …
Mechanism of magnetite iron ore concentrate morphology …
DOI: 10.1016/j.apt.2022.103883 Corpus ID: 253725284; Mechanism of magnetite iron ore concentrate morphology affecting the pellet induration process @article{Elahidoost2022MechanismOM, title={Mechanism of magnetite iron ore concentrate morphology affecting the pellet induration process}, author={Hossein …
Modern air pollution control for iron ore induration
The iron ore induration or pelletizing process emits particulates, sulfur dioxides (SOx), nitrogen oxides (NOx) and other pollutants depending on trace elements in the orebody and fuel. Typical ...
Schematic diagram of the straight grate induration process [29].
Unlike bentonite, paint sludge has half the concentration of silica and alumina, which are detriments in the ironmaking process. Iron ore pellets were made using magnetite ore, 1.0 – 3.0 wt ...
Multiobjective Pareto Optimization of an Industrial Straight Grate Iron
Induration in steel industries is the process of pelletizing iron ore particles. It is an important unit operation which produces raw materials for a subsequent chemical reduction in Blast Furnace.
Pelletization Solutions
Pelletizing is the process of transforming iron ore fines into spherical pellets through agglomeration and induration to be used as feed to a blast furnace or direct reduction systems to produce iron. is the only OEM in the world to offer both Straight Grate and Grate-Kiln technologies, therefore
(PDF) Iron Ore Pelletizing Process: An Overview
PDF | On Jul 11, 2018, Sandra Lúcia de Moraes and others published Iron Ore Pelletizing Process: An Overview | Find, read and cite all the …
Traveling Grate Pelletizing Plant
's traveling grate pelletizing plant is the industry's leading induration technology for iron ore pellet production for a wide range of plant capacities. Based on over 60 years' experience and world-class R&D, our process produces uniform pellets and ensures high performance and quality, with low investment and operating costs, as well as ...
Iron Ore Pelletizing Process: An Overview
This chapter aims to provide an overview and the evolution of iron ore pelletizing process including: Pelletizing process and raw …
Process integration in an iron ore upgrading process …
Process integration in an iron ore upgrading process system – Analysis of mass and energy flows within a straight grate induration furnace S. Nordgren1, 2, J. Dahl1, C. Wang2, B. Lindblom3 1 Div. of Energy Engineering, Luleå University of Technology, 971 87 Luleå, Sweden; Tel. +46 920 492020; Fax. +46 920 491047;
Modeling and simulation of iron ore pellet drying and induration process
We present a mathematical model of iron ore pellet drying and induration in an industrial scale application, and validate it against measured data. The model is based on the laws of mass and heat transfer, and incorporates both physical and chemical processes. The partial differential equations of the process kinetic model involve …
Modeling and simulation of iron ore pellet drying and induration …
The partial differential equations of the process kinetic model involve derivatives in time and bed depth. Comparing the results with measured data proves that the model can be used for optimizing the iron ore pellet induration process and as an effective tool for other, similar thermodynamic process simulations.
Mathematical models and expert system for grate-kiln process of iron
YOUNG R W, CROSS M, GIBSON R D. Mathematical model of grate-kiln-cooler process used for induration of iron ore pellets [J]. Ironmaking and Steelmaking, 1979, 6(1): 1–13. Google Scholar THURLBY J A. A dynamic mathematical model of the complete grate/kiln iron-ore pellet induration process [J].
Energy and exergy analyses of a mixed fuel-fired grate–kiln for iron …
Many models of iron ore pellet induration have been developed on the basis of the first law of thermodynamics. However, the exergy analysis, well grounded on the first and second law, of the process is rare. ... Mathematical model of grate–kiln–cooler process used for induration of iron ore pellets. Ironmak Steelmak, 6 (1) (1979), pp. 1 …
Dynamic simulation of pellet induration process in straight …
The latter process that was primarily developed by Lurgi and is currently owned by OutoKumpu Technology, accounts for two thirds of the world's installed pelletizing processes capacity. This study is focused on simulation of pellet induration process in the straight-grate system. 1.1. Description of induration process in straight-grate machine
Mathematical model for a straight grate iron ore pellet …
Two types of systems are usually used for induration of the iron-ore pellets: (a) straight-grate and (b) grate-kiln process. A hearth layer of fired pellets is used in the …
Modeling and simulation of iron ore pellet drying and induration process
The grate-kiln system for iron ore pellet induration is a nonlinear, high coupling and large delay process. Considering the deviation between assumption and actual results, it is hard to build ...
Pelletization of synthesized magnetite concentrate …
The scarcity of high-grade iron ore resource and availability of the considerable quantity of low-grade iron ore fines, banded hematite quartzite (BHQ) ore in mines (mostly in Bihar, Odisha, Madhya Pradesh, and Karnataka), has to lead the way to beneficiate and utilize the concentrate as pellet feed for the steelmaking process. …
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