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List of Presentations
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Grinding Media
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The grinding media is a
very important factor of the mills internals, not only on a
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mill's efficiency point
of view but also on a wear point of view.
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The presentation is
composed of the following chapters:
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Introduction
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Ball charges quality
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Wear rate
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Wear rate calculation
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Cylpebs
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A wear rate calculator is
also available.
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Top size
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The calculation of the
top size grinding media with three formulas:
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Bond
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Azzaroni
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Rowland
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Particle Size
Distribution - Representation
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This paper describes the
methods to represent a particle size distribution.
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5 methods are presented:
Linear, Linear with X- log scale, Log-Normal, Gaudin-Scumann
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and Rosin-Rammler
distributions. An example of linear regression is also detailed.
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Other mill power formulas
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The paper describes two
well-known ball mill power formulas.
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These formulas are used
in the mining industry but also in the cement area:
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1. the Bond power formula
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2. the Hogg and
Fuerstenau power formula
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Calculators are also
available in the tools page.
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Study of the grinding
balls distribution inside the mill
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The grinding balls
distribution inside the mill is presented in three parts:
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1. the sampling campaign
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2. the analysis of the
samples
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3. the analyse of the
results and the interpretation
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Mining Tromp curve
explanation
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This page explains how to
use the Tromp curve for cyclones
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Ball mill design
explanation
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This page explains how to
size a ball mill in single stage circuit
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Hydrocyclone design
explanation
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This page explains how to
size an hydrocyclone
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Work indices
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Usual and averages work
indices for the most famous materials
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Mill speeds
recommendations
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Recommended speeds for
ball and rod mills:
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Units conversion
calculator
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Conversion of length,
area, volume, mass, volumetric flow, mass flow, energy, specific
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energy, power and
pressure
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