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Indicele de Muncă Bond×Analiza de lavabilitate×
DomeniuInginerie minierăInginerie minieră
FamilieProcess / pipelineProcess / pipeline
Anul apariției19521950
Autorul originalFred C. BondMining Industry Practice (1930s-1960s)
TipEmpirical method for grinding energy estimationSeparation analysis by density fractionation
Sursa seminalăBond, F. C. (1952). The third theory of comminution. Transactions of the American Institute of Mining and Metallurgical Engineers, 193, 484-494. link ↗McCullough, R. B. (1963). The theoretical basis and practical application of coal washability studies. Transactions of the Society of Mining Engineers, 226, 13-26. link ↗
Denumiri alternativeBond Work Index, BWI, Bond Index TestCoal Washability, Density Separation Analysis, Float-Sink Analysis
Înrudite33
RezumatThe Bond Work Index, introduced by Fred C. Bond in 1952, is an empirical parameter that characterizes the resistance of an ore to grinding in a tumbling mill. It is defined as the kilowatt-hours per short ton (kWh/st) of electrical energy required to reduce a coarse ore from theoretically infinite size to 80% passing 100 micrometers. The Bond Index is foundational in mineral processing plant design and cost estimation worldwide.Washability analysis is a laboratory method that determines the feasibility and efficiency of density-based separation for coal or mineral beneficiation. By fractionating ore or coal into density bins using sink-float tests and assaying each fraction, engineers can optimize design of separation plants (dense-medium cyclones, jigs, spirals) and predict clean product quality. Washability curves are essential tools for pre-feasibility and detailed design studies.
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ScholarGateCompară metode: Bond Work Index · Washability. Preluat la 2026-06-19 de pe https://scholargate.app/ro/compare