hydrocyclones generally follow a conventional design and may have some limitations on separation performance. this paper presents a numerical study of hydrocyclones with different conical configurations by a recently developed computational fluid dynamics method.
hydrocyclones studied in this work (bradley’s and rietema’s designs). the filtering hydrocyclones had cylindrical section diameter (d c) of 3.10-2 m and underflow diameters (d u) of 3.10-3 4.10-3 and 5.10 m. three filtering cones r1 r2 r3 were made of sinter bronze for the hydrocyclone of rietema’s design. besides two cones
depending on the application a layer of sludge will form at the bottom of the hydrocyclone which must be disposed of or processed. costs. for a steel hydrocyclone system with standard instrumentation and for oil separation from an aqueous flow of 1000 m³/day the investment costs amount to approximately 250000 euros.
however cyclone application in magnetite grinding circuits can cause inefficient operation due to the density difference between magnetite and waste minerals (silica). magnetite has a specific density of about 5.15 while silica has a specific density of about 2.7. in hydrocyclones dense minerals separate at a finer cut size than lighter
hydrocyclones have been in use in industry since the 1940s although the first patent can be traced back to the nineteenth century (bretnai 1891). owing to their simple design low cost easy operation and low maintenance they have assumed an important role in the separation of solids and liquids.
pdf characteristics of dynamic hydrocyclonic separator are simply introduced. the advantages of dynamic hydrocyclones used as separators such as wider applicable flowrate range and smaller cut
this paper aims to improve the separation of fine solid particles in mini-hydrocyclones by changing the shape and size of the mini-hydrocyclone inlet. this study also examines the best mini-hydrocyclone inlet shape and size. fluent software is used to simulate the flow field of the continuous and dispersion phases in different mini-hydrocyclone.
request pdf on researchgate application of cfd to modelling of the flow in hydrocyclones. is this a realizable option or still a research challenge the search continues for accurate and