scholarly journals Highly porous granulated corundum aggregate prepared out of alumina-polystyrene-foam mixture. Part 7. The study of possibility to prepare the hollow corundum pellets

2018 ◽  
pp. 53-55
Author(s):  
V. N. Sokov
Keyword(s):  
Fractional Composition ◽  
Rotation Frequency ◽  
Production Quality ◽  
Polystyrene Foam ◽  
Technical Alumina ◽  
Plate Rotation ◽  
High Dynamic ◽  
Highly Porous

Fractional composition of the corundum pellets is defined mostly by the polystyrene foam balls grading, by the mixture moisture, and by the granulation's parameters. The using of the high dynamic packing loading influences negatively on the production quality. The plate' rotation frequency, its angle and the granulation time were established in the article. The conditions of the hollow pellets production on base of the technical alumina were developed.

Bottom-up and up-down strategy to obtain the highly porous polystyrene foam for oily water remediation

2020 ◽  
pp. 118233
Author(s):  
Ning Zhang ◽  
Yunfei Qi ◽  
Suhuan Tian ◽  
Yue Wang ◽  
Ping Cui ◽  
...  
Keyword(s):  
Water Remediation ◽  
Polystyrene Foam ◽  
Bottom Up ◽  
Oily Water ◽  
Highly Porous

scholarly journals Highly porous granulated corundum aggregate prepared out of alumina-polystyrene-foam mixture. Part 8. The well-targeted drying and firing schedulers for the raw corundum pellets

2018 ◽  
pp. 55-57
Author(s):  
V. N. Sokov
Keyword(s):  
Heating Rate ◽  
Polystyrene Foam ◽  
Gaseous Products ◽  
Hydrolysis Products ◽  
Drying Condition ◽  
Low Sensitivity ◽  
Drying Conditions ◽  
Highly Porous

The results of the raw corundum pellets drying condition investigation confrmed completely the supposition that the alumina-polystyrene-foam mixtures have the low sensitivity to the drying conditions. This fact allowed to combine the drying and the fring in one thermal vessel. As the vigorous evolution of the hydrolysis products and the polystyrene foam burning can damage the raw pellets, the heating rate should be set so that to give the gaseous products time to diffuse out of the material without breaching its structure. The well-targeted fring scheduler is proposed in the article.Ill.5.

Centrifugal gyration mill for fine product self-grinding

2020 ◽  
pp. 28-31
Author(s):  
Askarov E.S.
Keyword(s):  
Dynamic Balance ◽  
Rotation Frequency ◽  
Fine Grinding ◽  
Centrifugal Mill ◽  
High Dynamic ◽  
High Degree

A simplified design of a centrifugal mill for fine grinding of the product based on a parallelogram mechanism is proposed. A high dynamic balance was achieved, providing a high rotation frequency of the grinding chambers, and hence a high degree of the product grinding. Keywords centrifugal mill, parallelogram mechanism, selfgrinding, fine grinding

scholarly journals Highly porous granulated corundum aggregate prepared out of alumina-polystyrene-foam mixture. Part 9. Physical and technical properties of the porous corundum pellets and of the pellets-based filling materials

2018 ◽  
pp. 58-60
Author(s):  
V. N. Sokov
Keyword(s):  
Grain Size ◽  
Heat Conductivity ◽  
Polystyrene Foam ◽  
Disperse Composition ◽  
Filling Materials ◽  
Technical Properties ◽  
Highly Porous

The investigating results are given for the strength capabilities of both the separate fractions and the fraction-based mixtures. It was established that to decrease the flling materials' heat conductivity the diameter of the pellets should be reduced or the density of the poly-disperse composition should be increased. The introducing of the corundum flling with grain size of not more than 60 micrometers into the batch's composition raises the pellets' thermal stability.Ill.5. Tab. 3.

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