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Iron Ore Pellet Cooling Model

Modeling and Simulation of the MIDREX Shaft Furnace

Aug 21, 2015 The direct reduction is a process for reducing iron ore and producing sponge. There are several technologies, like MIDREX1 and H.Y.L2 using the countercurrent shaft furnace to make sponge iron.. In MIDREX technology, the furnace is a vertical shaft Fig. 1.A charge of pelletized or lump ore is loaded into the top of the furnace and descends by gravity through the reducing gas.

Modeling and Simulation of the MIDREX Shaft Furnace

Mathematical Model for the Kinetics of Heterogeneous

3 X.-F. Yang, Mechanism of roasting and agglomeration on the pellets produced by blended iron ore fines of hematite and magnetite, Journal of Iron and Steel Research, 222 2010 6-8. 4 P. Luis and B. Van der Bruggen, Exergy analysis of energy-intensive production processes advancing towardsa sustainable chemical industry, Journal of ...

Mathematical Model for the Kinetics of Heterogeneous

Production of iron oxide pellets from iron ore nes in-volves different operations like drying of ore nes to re-move the moisture and grinding to get the required ne-ISIJ International, Vol. 47 2007, No. 1, pp. 6772 Prediction of Iron Ore Pellet Strength Using Articial Neural Network Model

MATHEMATICAL MODEL OF GRATEKILNCOOLER PROCESS

mathematical model of grate-kiln-cooler process used for induration of iron ore pellets author young rw cross m gibson rd british steel corp., middlesbrough cleveland source ironmakg and steelmakg gbr da. 1979 vol. 6 no 1 pp. 1-13 abs.

Optimization of Cooling Process of Iron Ore Pellets Based

Nov 01, 2015 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 ...

The reduction of the iron ore pellets is described using a specific grain model, reflecting the transformations from hematite to iron. The shaft furnace is modeled as a set of interconnected one-dimensional zones into which the principal chemical reactions 3-step reduction, methane reforming, Boudouard and water gas shift are accounted for ...

and cooling zones. The simple scheme of iron ore reactor is shown in Figure 1. In the reduction zone, there are some reactions occurring between reduction gas and iron ore pellets. These reactions which are called reduction reaction will extract iron metal from the ore to create sponge iron product. These reactions occur on the surface of iron ...

Introduction to Iron ore Pellets and Pelletizing processes

Feb 23, 2013 There are four stages involved in the production of iron ore pellets. These stages consist of i raw material preparation, ii formation of green balls or pellets, iii induration of the pellets, and iv cooling, storage and transport of pellets. Raw material preparation During the process for pelletization iron ore concentrate from ...

Introduction to Iron ore Pellets and Pelletizing processes

Jan 20, 2013 iron ore pellet cooling model beltconveyers.net. 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

allischalmers gratekilncooler process iron ore pellet

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.

CFD analysis of an induration cooler on an iron ore grate

Other research mainly involves pellet strength predictions 10,11, computational fluid dynamics CFD analyses 1, gas leakages problem 12, thermophysical properties of iron ore pellet 13 ...

allischalmers gratekilncooler process iron ore pellet

Jan 20, 2013 iron ore pellet cooling model beltconveyers.net. 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

allischalmers gratekilncooler process iron ore pellet

Detailed Modeling of the Direct Reduction of Iron Ore in

cooling gas outlet. This model relies on a detailed description of the main physicalchemical and thermal phenomena, using a multi-scale approach. The moving bed is assumed to be comprised of ... composed of spherical iron ore pellets that descend by gravity. The pellet diameter dp is assumed to

Detailed Modeling of the Direct Reduction of Iron Ore in

Detailed Modeling of the Direct Reduction of Iron Ore in a

Oct 01, 2018 The direct reduction DR of iron ore, usually followed by electric ar c steelmaking, is an alternative. route to the standard, blast furnace, basic oxygen route for making steel. Annual DR iron ...

Prediction of Iron Ore Pellet Strength Using Articial

Production of iron oxide pellets from iron ore nes in-volves different operations like drying of ore nes to re-move the moisture and grinding to get the required ne-ISIJ International, Vol. 47 2007, No. 1, pp. 6772 Prediction of Iron Ore Pellet Strength Using Articial Neural Network Model

Modeling and Simulation of Iron Ore Sintering Process

subsequent cooling period.1 Figure 1 shows a conceptual version of the iron ore sintering process in sinter pot. In recent decades, numerical simulation, as an effective theoretical method complementary to laboratory investiga-tion, is being increasingly applied to analyze iron ore sinter-ing. Various mathematical models of iron ore sintering have

temperature field simulation model for rotary kiln of iron ore oxidied pellet free download The NOx reduction in the iron ore pelletizing process becomes an important environmental concern owing to its role in the formation of photochemical smog and acid rain.

temperature field simulation model for rotary kiln of iron

Pellets are small balls of iron ore that are used in the production of steel. They are made with technology that utilises the powder that is produced during ore extraction. The process of granulation combines the blending of the raw material and a thermal treatment that burns the soft green pellets into hard balls.

Measurement technology for the iron and steel industry

Improving reducibility of iron ore pellets by

IMPROVING REDUCIBILITY OF IRON ORE PELLETS BY OPTIMIZATION OF PHYSICAL PARAMETERS J. Pal a, S. Ghorai a, A. Ammasi a, S.K. Hota b, V.M. Koranne b, T. Venugopalan b a CSIR-National Metallurgical Laboratory, Jamshedpur, India b Tata Steel Ltd., Jamshedpur, India Received 06 December 2015 accepted 27 April 2016

Cooling process of iron ore pellets in an annular cooler

May 29, 2011 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

Cooling process of iron ore pellets in an annular cooler

May 30, 2016 To predict the key performance index compressive strength of Iron ore pellets, a prediction model based on Kernel principal component analysis KPCA and RBF neural network was proposed. This paper determined the input variable through the analysis of the chain grate machine - rotary kiln - ring cold pellet production process, deal with the sample data and simplified the model

Iron ore pellets compressive strength prediction model