The development and application of in-bed compression breakage principles

Viljoen, R.M.; Smit, J.T.; Plessis, Izak Du; Ser, V.

doi:10.1016/s0892-6875(01)00034-6

Cited by 7 publications

(1 citation statement)

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“…Using VRMs in cement grinding operations, 15% energy can be saved in comparison to the ball mills (Altun et al 2015). In VRMs, the materials are ground by the bed breakage mechanism (Fuerstenau 1992; Viljoen et al 2001). The bed breakage predominantly occurs by particle-particle-contacts or phase–phase-contacts.…”

Section: Introductionmentioning

confidence: 99%

An approach to measuring and modelling the residence time distribution of cement clinker in vertical roller mills

Barani

Azadi

Fatahi

2021

Mineral Processing and Extractive Metallurgy

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This paper presents an experimental approach to measure and model the residence time distribution of vertical roller mill in cement clinker grinding circuit. The dispersion model, tank-in-series model, and a perfect mixer with a bypass model were employed to describe the residence time distribution. A perfect mixer with a bypass model was found to a tolerable fitting to describe the RTD of solids in VRM. The result shows 43% of the fine fraction of fresh feed as an existing bypass without spending adequate time within the VRM. The result also shows that the grinding occurs in 54% of the table surface and about 46% of the table surface can be called the dead zone.

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Section: Introductionmentioning

confidence: 99%