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Showing 1 to 9 of 9 for “"Grindability"”.
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The effect of grindability upon nozzle pulverization
To determine the effect of the grindability of coal upon nozzle pulverization by running tests, in a small nozzle pulverizer unit, on various grindability coals from different coal seams in Virginia and West Virginia. The authors want the reader to know that maximum pulverization was not the object …
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Mechanical Property Evaluation of Torrefied Biomass Materials with Correlation to Grinding Efficiency
… increases the energy density and facilitates grindability by weakening the fibrous structure and tenacity of biomass. During the process the biomass also decreases in mass, but will maintain the majority of its initial energy.;Historically, the Hardgrove Grindability Index (HGI) has been used …
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Grinding of cement clinkers : linking multi-scale fracture properties to system chemistry, mineralogy and microstructure
… higher macroscale toughness (i.e., poor coarse grindability) was associated with oversized alite crystals, which was explained by the increase of microcracks toughening with larger grain size. In contrast, lower macroscale fracture toughness (i.e., better coarse grindability) was associated with …
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An Experimental Investigation of the Effect of Blasting on the Impact Breakage of Rocks
… the influence of blasting energy distribution on grindability in the case of Barre granite. Subsequently, stress wave collision blasting and the effect of delay timing were tested under the same powder factor conditions. Generally, powder factor resulted in the most significant changes in the …
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Modeling the coupled effects of heat transfer. thermochemistry, and kinetics during biomass torrefaction
… as torrefied product characteristics such as grindability and heating value over a wide range of reactor conditions. Based on this framework, optimal conversion conditions are determined. The second component of the present work is a numerical unsteady one-dimensional single particle model …
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Quantification of uncertainty of geometallurgical variables for mine planning optimisation
… by projection pursuit were built to predict grindability indices and recovery, and quantify model uncertainty. These models are useful for populating the geometallurgical block model with response attributes. New multi-objective optimisation formulations for block caving mining were …
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Surface integrity evaluation and the effect of machining-induced surface integrity characteristics on part's performance
… usually used in internal combustion engines, its grindability and the influence of processing parameters on the five principal SI characteristics are investigated in detail. The correlations between the processing parameters and the SI characteristics, between the processing parameters and the …
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Détermination de la broyabilité des plaquettes et des pellets de bois
La littérature concernant la consommation énergétique du broyage dans les industries qui traite les minerais montre que cette problématique a été, et est encore, étudiée par de nombreux auteurs. Différents modèles mathématiques décrivant le broyage sont donc disponibles pour exprimer l’énergie …