steady-state condition for the straight-grate iron-ore induration of the pellets Kucukada et al have presented modeling of a pilot scale induration furnace for iron ore pellets 15 Cross and Blot 16 have utilized the induration process model to measure the suitability of the first drying zone with the updraft or downdraft gas flow streams...

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05-12-2008 0183 32 Description of induration process in straight-grate machine Fig 1 depicts schematic of a typical straight-grate induration system The grate bars fixed on a moving strand are first covered with a layer of burnt pellet, known as hearth-layer The green pellets containing 7 to 9 wt free moisture and 10 to 14 mm in size are then fed onto this ....

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Iron ore pelletizing Grate-KilnTM system - 4 Iron ore pelletizing Energy efficiency The Grate-KilnĀ® induration machine is composed of three separate process pieces of equipment The traveling grate is used primarily to dry and preheat green balls for ,...

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Mathematical model for a straight grate iron ore pellet induration process of industrial scale , University of Technology, PO Box 11365-9466, Tehran, , iron ore induration process Process integration in an iron ore upgrading process system pelletising plants are using the straight grate induration furnace, and they are the most energy...

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Abstract A mathematical model of pellet induration process in the straight-grate system is presented The important physical and chemical phenomena ,...

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simultaneously with heat and mass transfer between the gas and the pellets as the pellets pass from one zone to another on the traveling grate The same phenomena take place in the pot grate as drying, firing and cooling zones in the moving grate A number of models have been proposed in the literature for induration of iron ore pellets...

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fuel rates to achieve proper induration temperatures in the pellet bed , of a complete straight grate induration furnace was , heat and mass transfer between the furnace....

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A mathematical model is developed for induration of the iron-ore pellets in an industrial-scale plant based on the laws of mass, heat and momentum transfer Physicochemical processes occurring during the induration of pellets such as drying of moisture, calcination of limestone and coke-magnetite reaction are considered to evaluate the gradient of temperature within the pellets...

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upgrading process system - analysis of mass and energy flows within a straight grate induration furnace Proceeding of 18th International Congress of Chemical and Process Engineering, Prague, Czech Republic, 24-28 Aug 2008 C Nordgren S, Dahl J, Lindblom B Green pellet temperature influence of production...

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`Mathematical Modelling of Heat and Mass Transfer in Hematite Pellet Induration Straight Grate Furnace at REACTOR SCALE...

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Nordgren et al 7 analyzed mass and energy flows through the straight grate induration furnace of an iron-ore pelletizing plant in Malmberget The aim of their study was to establish a framework for mass and energy balances in the whole process and also, to optimize the environmental impacts and energy consumption...

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