Autor: Song, B. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Kinetics of hydrophobic agglomeration of molybdenite fines in aqueous suspensions
Autorzy:: Yang, B.
Song, S.
Lopez-Valdivieso, A.
Powiązania:: https://bibliotekanauki.pl/articles/110890.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: agglomeration rate
molybdenite fines
hydrophobic agglomeration
Opis:: The kinetics of hydrophobic agglomeration of molybdenite fines in aqueous suspensions has been studied in this work. This study was performed on minus 5 μm molybdenite particles through turbid-ity measurements and imaging. The results have showed that stirring strength and kerosene addition greatly affected the agglomeration rate of molybdenite fines in aqueous suspensions. The higher was the stirring strength, the larger the agglomeration rate was. Kerosene addition enhanced not only the agglom-eration rate, but also the agglomerates structure. It was recommended to use radial impeller for the for-mation of hydrophobic agglomeration, because it produced a stronger shear field in impeller zone.
Źródło:: Physicochemical Problems of Mineral Processing; 2015, 51, 1; 181-189
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Regional features analysis of plugged holes of dense phase gas-solid separation fluidized bed
Autorzy:: Zhang, B.
Zhao, Y.
Luo, Z.
Song, S.
Duan, C.
Dong, L.
Powiązania:: https://bibliotekanauki.pl/articles/109699.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: gas-solid fluidized bed for separation
pressure fluctuation
plugged holes regions
features analysis
plugged holes sensitivity
Opis:: In contrast to traditional coal separation, dry separation does not require water and does not cause water pollution. Dense phase gas–solid fluidized beds are used for dry separation. The plugged holes in the air distributor should be tested to ensure the stability of these beds for particle separation. The pressure fluctuation is sensitive to these plugged holes. This sensitivity can be tested and diagnosed by determining the standard deviation of the pressure fluctuation. In areas with partial blockage, that is the areas with weak fluidization, a decrease in the volume fraction of the particles and in the pressure differences in the transverse of the bed results in an increase of the standard deviation of the pressure fluctuation, thereby stimulating the lateral mixing of medium-sized particles. The standard deviation and the mixing intensity decrease axially. The value of sensitivity of the plugged holes in the air distributor decreases as the height of the bed increases. The features of air distributors affect the surrounding areas. The distribution law determining the influence of plugged holes on the beds is symmetrical. As the blockage of the fluidized bed distributor region increases, the mean square error of the pressure fluctuation in the related regions increases. The intensity of the effect is proportional to the distance to the plugged holes.
Źródło:: Physicochemical Problems of Mineral Processing; 2014, 50, 2; 667-679
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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