Chemical Engineering :: Mechanical Operations
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Filtration rate through a filter cake is proportional to (where, S = filtering surface R = specific cake resistance μ = viscosity of the filtrate)
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A centrifugal filtration unit operating at a rotational speed of w has inner surface of the liquid (density ρL) located at a radial distance R from the axis of rotation. The thickness of the liquid film is δ and no cake is formed. The initial pressure drop during filtration is
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Which one is a filter aid ?
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To remove dirt from the flowing fluid, we use a
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Which of the following crushers can be considered as a combination of a jaw crusher and a roller crusher ?
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Separation of solid suspended in liquid into a supernatant clear liquid and a denser slurry employs a process termed as the
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Ultrafine grinders operate principally by
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Half the angle of nip, (α), for a roll crusher is given by (where, dr, dp and df are diameters of crushing rolls, feed particles and rolls gap respectively).
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Which of the following comes in the category of primary crusher for hard and tough stone ?
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Crushing efficiency of a machine ranges between __________ percent.
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w2 . R2 . ρL 
