Results 161 to 170 of about 69,766 (201)

Particle breakage in glacial sediments

2017
In most areas of glacial deposits, soils were deposited by ice sheet expansion or contraction, and produced by deformation and mixing of pre-existing soft sediments. The resulting soil (till) is well graded. In some cases the remixing and shearing of sediments by glaciers has caused a redistribution of particle sizes by abrasion and crushing.
Sammonds, P, Altuhafi, F, Baudet, BA
openaire   +2 more sources

Mineral liberation by particle bed breakage

Minerals Engineering, 1997
The prediction of mineral liberation in mineral processing operations has become of major importance in the last two decades. This is especially the case for comminution processes. Many breakage liberation models have been proposed but none has focused on a particular form of breakage.
Fandrich, R. G., Bearman, R. A., Boland, J., Lim, W.   +3 more
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Rigidly-mounted roll mill as breakage tester for characterizing fine particle breakage

Powder Technology, 2021
Abstract Fine grinding based on compression stresses is an important industrial process step, which is often applied in mineral, chemical and pharmaceutical industries, for example by using stirred media mills. For this stress mechanism, several studies investigate how to predict the breakage behavior depending on process and formulation conditions ...
Ann-Christin Böttcher, Christoph Thon, Greta Fragnière, Anderson Chagas, Carsten Schilde, Arno Kwade   +5 more
openaire   +1 more source

Breakage probability of irregularly shaped particles

Chemical Engineering Science, 2010
The investigation of breakage probability by compression of single particles was carried out. The spherical glass particles and irregularly shaped particles of NaCl, sugar, basalt and marble were subjected to a breakage test. The breakage test includes the compression up to breakage of 100 particles to obtain the distribution of the breakage ...
Sergej Aman, Jürgen Tomas, Haim Kalman
openaire   +1 more source

Parametric dependence of particle breakage mechanisms

Powder Technology, 2001
Abstract It has been observed that the pattern of particle impact breakage in two-dimensional systems is a result of two mechanisms. “Mechanism I” accounts for the breakage induced by the stresses that appear in unbroken particles. “Mechanism II” breakage is due to the buckling of the Mechanism I fragments.
Alexander V. Potapov, Charles S. Campbell   +1 more
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Modelling of particle breakage during drying

Chemical Engineering and Processing: Process Intensification, 2008
An advanced theoretical drying model of single wet particle is proposed. The temperature profile in both crust and wet core regions is described by partial differential equations with appropriate boundary conditions. A Stefan-type vapour diffusion through the crust pores and its convection to the drying ambient has been assumed.
M. Mezhericher, A. Levy, I. Borde
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Particle Breakage of a Crushed Sandstone–Mudstone Particle Mixture

2021
Sandstone–mudstone particle mixture (SMPM) is often used as a main filling material in many agriculture-related and civil engineering works such as in rockfill dams and filling foundations. The SMPM was found crushed seriously since it is mixed with mudstone particles.
Zhenfeng Qiu, Shaobo Yang, Junjie Wang, Ting Cao   +3 more
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Experimental Study of Rockfill Particle Breakage

Advanced Materials Research, 2014
As the high concrete faced rockfill dams construction, grain breakage gradually become the factors that influence the high dam construction which can not be ignored. This text based on the master of rockfill of shuibuya dam as the experimental material, getting and analyzing the particle breakage data under different confining pressure through the ...
Zhi Hua Xu, Da Wei Sun
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Simulation of Spherical Particle Breakage

2014
Abstract Many papers on particle breakage provide qualitative descriptions of changes in particle shape, but do not provide quantitative analysis of changes in the particle shape. The papers that provide quantitative analysis often focus on the case where corners are chipped off of a cubic crystal.
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A rigorous breakage matrix methodology for characterization of multi-particle interactions in dense-phase particle breakage

Chemical Engineering Research and Design, 2012
Abstract Broadbent and Calcott's breakage matrix methodology has been used for more than 50 years to model various comminution processes and to determine breakage functions from experimental data. The methodology assumes first-order law of breakage and neglects mechanical multi-particle interactions that are especially prevalent in dense-phase ...
E. Bilgili, M. Capece
openaire   +1 more source