iron ore pellet cooling model

Optimization of Cooling Process of Iron Ore Pellets

Cooling process of iron ore pellets in a circular cooler has great impacts on the pellet quality and systematic energy exploitation. However, multi-variables and non-visualization of this gray system is unfavorable to efficient production. Thus, the cooling process of iron ore pellets was optimized using mathematical model and data mining ...

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Optimization of Cooling Process of Iron Ore Pellets

2015-11-1  Cooling process of iron ore pellets in a circular cooler has great impacts on the pellet quality and systematic energy exploitation. However, multi-variables and non-visualization of this gray system is unfavorable to efficient production. Thus, the cooling process of iron ore pellets was optimized using mathematical model and data mining ...

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Cooling process of iron ore pellets in an annular

2011-5-29  A 3-D mathematical model was presented for the cooling process of iron ore pellets based on the laws of mass, momentum, and heat transfer. The flow, pressure, and temperature fields were obtained by numerical simulation with the commercial software FLUENT. In order to verify the model, a mass and energy balance field test was systematically carried out on an annular cooler in Shougang

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(PDF) Cooling process of iron ore pellets in an annular ...

Conclusions(1) A 3-D model for the pellet cooling process in a cooler has been developed, and a field test was systematically car- ried out on a cooler in China. The maximum relative errors of temperature, pressure, and velocity are 2.87%, −8.11%, and 7.14%, respectively, indicating the validity of the model.(2) The flow and pressure fields ...

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Cooling process of iron ore pellets in an annular

A 3-D mathematical model was presented for the cooling process of iron ore pellets based on the laws of mass, momentum, and heat transfer. The flow, pressure, and temperature fields were obtained ...

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allis-chalmers grate/kiln/cooler process, iron ore pellet ...

iron ore pellet cooling model – beltconveyers. Mathematical model grate-kiln-cooler process iron ore pellets – OneMine Mining and Minerals Library search results. Cooling process of iron ore

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CFD analysis of an induration cooler on an iron ore

In this article, we show how a thermokinetic model of pellet induration, validated against operating data from one of the Iron Ore Company of Canada (IOCC) lines in Canada, can be exploited in ...

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(PDF) Improving reducibility of iron ore pellets by ...

After cooling. of indurated pellets ... (Model: H 10K-S ... To produce good quality of pellets certain additives are important and limestone is employed for modifying the pellet basicity. Iron ore ...

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Heat Transport in Drying of Iron Ore Pellets in a Two ...

2010-8-20  made from iron ore, there is only slight change of temperature within the pellet, see Fig. 2. 2.4. Evaporation The drying of iron ore pellets causes evaporation of water from the inner part of the pellets. This requires additional amount of heat and further increase of temperature is slow or even cooling is possible if dry input air is used.

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Mathematical modeling of thermal behavior of single

2021-2-8  In this study, a one-dimensional generic model capable of being integrated with reactor scale models is proposed for a single pellet through solving the transient differential conservation equations. Predicted results comparison with the experimental data showed close agreement. In addition, the model was used to investigate the relevance of physical characteristics of pellet, reacting gas ...

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allis-chalmers grate/kiln/cooler process, iron ore pellet ...

iron ore pellet cooling model – beltconveyers. Mathematical model grate-kiln-cooler process iron ore pellets – OneMine Mining and Minerals Library search results. Cooling process of iron ore pellets in an annular cooler. »More detailed

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Drying of Iron Ore Pellets - Analysis with CFD

2016-9-30  The derived model can be applied to a number of numerical set-ups such as a single pellet in infinite space. Paper C Fluid flow and heat transfer within and around a porous iron ore pellet placed in infinite space The forced convective heating of a porous cylinder with properties similar to an iron ore pellet is here numerically investigated.

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Prediction of Iron Ore Pellet Strength Using Artificial ...

Production of iron oxide pellets from iron ore fines in-volves different operations like drying of ore fines to re-move the moisture and grinding to get the required fine-ISIJ International, Vol. 47 (2007), No. 1, pp. 67–72 Prediction of Iron Ore Pellet Strength Using Artificial Neural Network Model

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Iron Ore Pellets Induration Solutions - Metal 7

Iron ore green balls are soft and easy to break. So after the pelletizing and screening operations, iron ore pellets have to be hardened in a furnace through a firing process. Once fired, they can be handled, loaded in ships or trains and delivered to the end users.

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Drying of iron ore pellets : analysis with CFD

To further develop a single pellet model, forced convective heating of a porous media with surrounding flow field taken into account must first be examined. Therefore, a two dimensional model with properties similar to that of an iron ore pellet is numerically investigated.

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Optimizing the operation of straight-grate iron-ore

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 article, we show how a thermokinetic model of ...

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Process through Multiscale Process Modeling

2018-6-27  model, and a plant model, using different and complementary modeling strategies. These are presented in the next sections, together with references to previous works. 2. Single Pellet Model Iron ore pellets (roughly spherical, typically 7. 15 mm diameter) for DR are industrially

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Study of the induration phenomena in single pellet to ...

2017-2-12  and cooling zones [1]. The first step ensures that the pel- ... numerical domain considered in this model was the inner pellet coupled with the furnace environment by using the i furnace temperature and gas flow as boundary conditions for the surface of the pellet. Therefore, Fig. 3 shows a slice of a ... Spherical section of a iron ore ...

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Pellet Scientific.Net

According to the fitted images, the speed limit factors in the iron ore pellet reaction model are analyzed completely. In this paper, a pellet decomposition model was established to try to determine the kinetic and thermodynamic parameters of the pellet reaction without the need for experimentation, to simulate the reduction of pellets, and to ...

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Research Article ...

2019-7-31  shift reaction are taken into account in the model. 2.ReactorModeling Iron ore reactor is a moving bed reactor to produce sponge iron product from iron ore. Gas and solid phases are passed in counter current. In general, sponge ore reactor is divided by3zones,whicharereferredtoasreduction,isobaric, and cooling zones. The simple scheme of iron ...

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allis-chalmers grate/kiln/cooler process, iron ore pellet ...

iron ore pellet cooling model – beltconveyers. Mathematical model grate-kiln-cooler process iron ore pellets – OneMine Mining and Minerals Library search results. Cooling process of iron ore pellets in an annular cooler. »More detailed

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Detailed Modeling of the Direct Reduction of Iron Ore in

2019-9-4  to consider CO-H2-CH4 reducing gas, and accounted for transition and cooling sections. The present model, named REDUCTOR, is 2-dimensional in the steady-state regime. The model includes a sophisticated, pellet sub-model. We consider eight heterogeneous and

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Drying of iron ore pellets : analysis with CFD

To further develop a single pellet model, forced convective heating of a porous media with surrounding flow field taken into account must first be examined. Therefore, a two dimensional model with properties similar to that of an iron ore pellet is numerically investigated.

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Improved Reduction Kinetics of Low Grade Iron Ore Pellet ...

Tata Steel Slide IRON ORE –SCENERIO IN INDIA TSL Board 3 Day by day high-grade iron ores are fast depleted fines and low-grade iron ores, which are not utilised earlier, now they can be utilised by up gradation. Upgraded concentrates can be used as charge materials for pelletization. The present scenario of iron ore reserves stated that out of total 28.53 BT

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SINTERING AND PELLETISATION OF INDIAN IRON ORES

2020-2-2  8 mm. HPS feed consists of iron ore as pellet feed fines, return fines and iron and steel work remnants, filter dust, additives and binders like limestone, dolomite, bentonite and coal dust. These micro pellets are fed onto a sinter machine to produce sinter cake,

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Process through Multiscale Process Modeling

2018-6-27  model, and a plant model, using different and complementary modeling strategies. These are presented in the next sections, together with references to previous works. 2. Single Pellet Model Iron ore pellets (roughly spherical, typically 7. 15 mm diameter) for DR are industrially

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Thermal Implications of Phase Transformations during ...

Iron ore pellets have been produced from finely ground iron ore concentrates for over 60 years as an agglomerated feed material for blast furnaces and more recently for direct reduction furnaces. To produce pellets, iron ore concentrate (either hematite-Fe 2 O 3, or magnetite-Fe 3 O 4) ground to a p80 of 30–70µm, along with additives such ...

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Sintering of the Briquette Egyptian Iron Ore with Lime

2016-9-9  Also the reduction of these briquettes via hydrogen was studied and the model of reduction was puttedin this paper. Keywords:- Indurate briquettes, lime addition to iron ore, model of reduction. —————————— —————————— 1. amount of surface smoothing. On cooling, the iron oxides and Introduction The usingof ...

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Research Article ...

2019-7-31  shift reaction are taken into account in the model. 2.ReactorModeling Iron ore reactor is a moving bed reactor to produce sponge iron product from iron ore. Gas and solid phases are passed in counter current. In general, sponge ore reactor is divided by3zones,whicharereferredtoasreduction,isobaric, and cooling zones. The simple scheme of iron ...

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Potential for CO2 emissions reduction in MIDREX direct ...

2013-12-9  Brazil iron ore mine Austrian steel production sites in Linz and Donawitz Iron ore pellet HBI The decision on the construction of the Voestalpine direct reduction plant in North America has been made. The plant will be constructed on just outside the city of Corpus Christi, Texas, USA. The planned facilities are designed for an

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