Browsing by Author "Hejft, Roman"

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Access status: Open Access ,
Badania wpływu kształtu powierzchni roboczej walców na efekty pracy prasy walcowej
(2007-06-29) (Data obrony: 2010-05-26) Bembenek, Michał
Wydział Inżynierii Mechanicznej i Robotyki
The paper presents a solution to the current problems, which is a selection of the working surface of a roll press forming elements using to agglomerate fine-grained materials. As a result of limited knowledge at present, research was carried out on four compacting units of roll presses, including using a new one, known as 'Asymmetrical*. For the experiments, two materials were used with different properties: Copper concentrate and Calcium Hydroxide. Their selections were guided by the practical applications of the results. Given the fast-growing dry granulation process a new method for determining the quality of consolidated material, which is based on crushing product and then separating from it the fraction of a required grain size, was proposed. It has allowed assessment of the compacts of irregular shape, and most importantly with regard to the mechanical properties of briquettes. The simulation experiments of briquetting fine-grained material in the press referred to different shape and volume of the cavities also were carried out. Based on the results of the laboratory tests and simulations, a method was developed to select the forming elements for a roll press.