手法を比較

	トロンプ曲線	ウォッシャビリティ分析
分野	鉱山工学	鉱山工学
系統	Process / pipeline	Process / pipeline
提唱年	1937	1950
提唱者	K. Tromp	Mining Industry Practice (1930s-1960s)
種類	Empirical model for size classifier performance	Separation analysis by density fractionation
原典	Tromp, K. (1937). Separation of fine particles from slurries by hydrocyclone. Colliery Guardian, 155(4), 251-256.	McCullough, R. B. (1963). The theoretical basis and practical application of coal washability studies. Transactions of the Society of Mining Engineers, 226, 13-26.
別名	Partition Curve, Classification Efficiency Curve, Grade Recovery Curve	Coal Washability, Density Separation Analysis, Float-Sink Analysis
関連	3	3
概要	The Tromp Curve, introduced by K. Tromp in 1937, is an empirical model that quantifies the performance of size classifiers (cyclones, screens, jigs) by showing the fraction of particles at each size that report to the target stream (overflow or underflow). It is universally used in mineral processing to evaluate classifier performance, design circuits, and diagnose operational problems.	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.