Mechanics of media motion in tumbling mills with 3d discrete element method

Agrawala, S.; Rajamani, Raj K.; Songfack, Poly; Mishra, B.K.

doi:10.1016/s0892-6875(96)00147-1

Cited by 40 publications

(21 citation statements)

References 2 publications

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“…In the case of mass-related segregation, the forces include gravitational forces and centrifugal forces. For rotary mills, Agrawala et al (1997) cited additional causes of segregation, including: lifter configuration, slurry density and flowrate, and ball-to-mill diameter ratio.…”

Section: Segregationmentioning

confidence: 99%

Characterising porosity of multi-component mixtures in rotary mills

Sichalwe¹,

Govender²,

Mainza³

2011

Minerals Engineering

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Section: Segregationmentioning

confidence: 99%

Characterising porosity of multi-component mixtures in rotary mills

Sichalwe¹,

Govender²,

Mainza³

2011

Minerals Engineering

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“…Tumbling mills are efficient when most impacts that occur in the mill are in an energy range that can break ore particles and they occur in regions where the probability of finding the ore is very high (Agrawala et al, 1997).…”

Section: Dem Impact Energy Spectra As a Function Of Liner Wearmentioning

confidence: 99%

Study of the influence of liner wear on the load behaviour of an industrial dry tumbling mill using the Discrete Element Method (DEM)

Kalala

Breetzke

Moys

2008

International Journal of Mineral Processing

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“…Many simulations of ball mills, drums and cylinders have used a single circle to represent the outer circumference of the operational environment e.g. [23]. Arrays of circular objects, placed along the outer boundary, have also been used to model rotating drums [18].…”

Section: Introductionmentioning

confidence: 99%

“…Cylinders have been shown in example simulations of ball mills [20; 24]. Alternatively a set of connected rectangular shell elements has been employed to discretize the cylindrical shape of turning ball mills [23] and to represent ba es attached around the circumference of spinning drums [24].…”

Section: Introductionmentioning

confidence: 99%

A method for representing boundaries in discrete element modelling—part II: Kinematics

Kremmer

Favier

2001

Numerical Meth Engineering

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SUMMARYThe application of the DEM to engineering problems involving the dynamic behaviour of discontinuous media has necessitated the introduction of moving boundary surfaces. In this paper a method is presented for modelling three-dimensional moving boundary surfaces within the discrete element framework. The surfaces of boundary objects are discretized into triangular planar surfaces using the ÿnite wall method. Wall elements are grouped and each group is associated with a single discrete boundary object which may move independently. Movement comprises any combination of translation and rotation of wall element groups, subject to a given acceleration and velocity during a calculation cycle. The scheme is explicit due to rigidity of the wall elements which are stationary ÿxed in position and orientation over a time step. Any in-plane velocity is handled as a contact point velocity within a calculation cycle. The kinematic conditions at each calculation cycle may be pre-deÿned or returned from a separate calculation of rigid body motion of the boundary object. The method provides a means for coupling sphere-based particle dynamics with rigid body dynamics and structural analysis of boundary components.

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Mechanics of media motion in tumbling mills with 3d discrete element method

Cited by 40 publications

References 2 publications

Characterising porosity of multi-component mixtures in rotary mills

Characterising porosity of multi-component mixtures in rotary mills

Study of the influence of liner wear on the load behaviour of an industrial dry tumbling mill using the Discrete Element Method (DEM)

A method for representing boundaries in discrete element modelling—part II: Kinematics

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