Mechanical destruction of floccules by shearing |
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Authors: | V. E. Vigdergauz G. Yu. Gol’berg |
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Affiliation: | 1. Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences, Kryukovskii tupik 4, Moscow, 111020, Russia
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Abstract: | Based on the analysis of ultimate stress of floccules under shear, the authors determine maximum force and stress for bridges between particles of solid to keep strong. The rheological research shows that flocculating structures in concentrate suspensions and in coal flotation suspension are kindred with liquid-like pseudo-plastic systems by nature of flow. The experimentally obtained ultimate dynamic shear stresses depending on dosing of flocculants are comparable with theoretical calculations and differ from the latter by 25% at the most. |
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