Browsing by Subject "imperfekcja"

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Access status: Open Access ,
Wpływ rozkładu właściwości fizycznych i geometrycznych ziaren na dokładność rozdziału w osadzarce na przykładzie węgla
(Data obrony: 2007) Surowiak, Agnieszka
Wydział Górnictwa i Geoinżynierii
To realize the main work purpose, which was the assessment of the influence of the particles physical and geometrical properties distribution on separation efficiency, the heuristic approach was applied. Basing on the probability theory relating to the random variables functions, the algorithm of calculation the distribution of irregular particles sedimentation velocity in sample was elaborated, which is the function of both physical and geometrical properties of the particle. By assuming that the vertical part of particle velocity in working cell of the jig can be described by Maxwell distribution function, the equation of separation curve was presented in the form of normal distribution function. Currently, it is only the physical warrant of applying the normal distribution function as the separation function. The given formulas were verified empirically on the basis of the sampling results of industrial jigging and measurements of the particle shape coefficients, as well of the projective diameter. From the separation curve equation, the functional form of probable dissipation dependence on the particle geometrical and physical properties, conditions of process conducting and specific capacity was derived. The evaluation of the influence of the particle physical and geometrical properties on separation efficiency was performed on the basis of the imperfection value and its correlation with particle sedimentation velocity.