convective drying of an individual iron ore pellet analysis

Convective drying of an individual iron ore pellet ...

This starting point is adopted also in this work. Mathematical description of the drying of iron ore pellets has previously been made by Huang et al. , Sadrnezhaad et al. , Tsukerman et al. and Barati , the three latter describing drying of individual pellets by the use of so called shrinking core models.

Simulation of convective drying of a cylindrical iron ore ...

The objective of this stone is to model convective drying of an individual iron ore pellet placed in a free stream of air with the aim to clarify the different stages of drying.

Drying of Iron Ore Pellets - Analysis with CFD

The average diameter for iron ore pellets is about 12 mm and 99 % of all pellets have a diameter in the range 6.3 -16 mm and 70 % of these are, in their turn, within the interval 10-12.5 mm.

Simulation of convective drying Simulation of convective ...

Simulation of convective drying of a cylindrical iron ore pellet Anna-Lena Ljung and T. Staffan Lundstro¨m Division of Fluid Mechanics, Lulea˚ University of Technology, Lulea˚, Sweden, and Kent Tano LKAB R&D, Malmberget, Sweden Abstract Purpose – The purpose of this stone is to numerically model convective drying of a two-dimensional iron ore pellet subjected to turbulent flow.

Iron ore pellet drying assisted by microwave: A kinetic ...

Convective pellet drying of iron ore green pellets has been intensively investigated and it is represented by multi-stages model. Nevertheless, the present study focus on the impact on drying out and dry pellet quality resultant from a use of microwave for further industrial application.

Simulation of convective drying of a cylindrical iron ore ...

– Simulations of the iron ore pellet drying process are carried out with commercial computational fluid dynamics software. The moisture distribution inside the pellet is calculated from a diffusion equation and drying due to evaporation at the surface is taken into account.

On the drying rates of individual iron oxide pellets ...

(3) is required when surface drying occurs alone (i.e. when W p > W pc) and a single wet zone occupies the entire pellet, and when the pellets are completely dry (using physical properties of the dry pellet λ p,d, ρ p,d, and C p,d).

Novel Drying Process Assisted by Microwave to Iron Ore ...

Drying has became critical to iron ore pellet production, due to increasing inability to withdrawal moisture from the green pellets, especially faced by goethitic iron ore producers. Most of the existing pelletizing furnaces do not support increase heating rates nor changes in furnaces length, without compromise pellet quality.

Drying of iron ore pellets : analysis with CFD

Drying of iron ore pellets: analysis with CFD Ljung, Anna-Lena Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.

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

pellet and flow rate between the pellets to obtain the local heat transfer. Because the pellets are 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.

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