Grinding plants - Optimization and modelling
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R esearch C enter C ement & M inerals Industries >

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2.1.2. Means A systematic study of the correlations between the Blaine specific surface area and the size distribution for different products has shown that it was impossible to achieve a model independent of the material being investigated. The solution requires a complement of calculation in addition to the grindability test (FCB Index) and to the determination of the S and B function (see figure 1). > FBS Mill Simulator FCB index SIZEDistributionsBLAINE CalculatedSizeDistributions Grinding PlantSimulationMODELISATION Without Blaine ModelWith Blaine Model BlaineModel Figure 1 : The Blaine...

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V : Simulation of ventilation and/or bypass (overfilling) D : Simulation of a grate and/or coating M : Elementary mill section assimilated to a perfect mixer. This sectional mill approach has permitted a simple and modular programming of the simulator and gives a high flexibility of use. > For a Belgian cement producer who want to optimize the operation of his grinding plant for a cement of 3700 Blaine with 48.5 % slag, we have achieved a complete modelling including a balance of the industrial operation, a simulation of the existing plant and several theoretic simulations whose purpose was...

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Industrial Production Modelised Industrial Production Mod. with TSV - RL 2.5 FCB Index > Sieve Residue at 90 յm SE kWh/t >

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The model is reliable for any configurations encountered in the grinding plants for cement or other materials. The model allows for the simulation of plants with malfunctions. We do not simulate perfect standard grinding plants only ! We can also simulate and > QUANTIFY such complex phenomena as mill overfilling, ball coating or also high air flows. The model can be applied to and is today applied to many materials such as clinker, of course, but also coal, raw mix, limestone, slag, coke, phosphate rock, etc. Stimulated by these results obtained with the classical grinding process in ball...