The effect of wetting parametrers on mechanical strenght of granulated material
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Technical University of Lodz
Publication date: 2006-01-01
Physicochem. Probl. Miner. Process. 2006;40(1):237-245
Results of the investigation of the effect of changes in surface tension, wetting liquid drop size and final moisture content of the bed on the strength of granulated material are presented in the paper. The tested material was silica flour. After each run, representative feed samples were taken from the drum and on their basis the strength of the granulated product was determined by means of abrasion and compression tests. The abrasion tests were conducted in a horizontal drum of diameter D’=0.2 m and length L’=0.14 m, with perforated walls, where the bed was destroyed during tumbling. Trials were made for steady rotational speed of the drum n’=26 r.p.m. and for constant times of testing t=30 to 180s. The compression tests were conducted between two pressing plates up to the moment when a single granule was destroyed between the pressing surfaces.
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