Mekhanobr Engineering JSC (St. Petersburg, Russia):

Vasilyev A. M., Researcher, Candidate of Engineering Sciences

Saint Petersburg Mining University (St. Petersburg, Russia):
Kuskov V. B., Associate Professor, Candidate of Engineering Sciences, opikvb@mail.ru

This article outlines the results of a study of the effects of the key factors on the efficiency of a short-cone hydrocyclone with the diameter of 50 mm. These factors include the solid content in the slurry, the content of the heavy component in the feed, the diameters of the sand and drain nozzles. The respective concentration efficiency is evaluated using the Hancock—Luiken criterion. The initial material is represented by an artificial mixture consisting of quartz sand and narrow grades of granular ferrosilicon. The methods for studying the hydrocyclone plant and for the separation of ferrosilicon from the concentration products using a magnetic separator have been preliminarily established. These studies use the second-order rotatable design method. Based on the experimental data obtained, certain regularities in the effects of the above key factors on the efficiency of the separation of particles in the hydrocyclone have been identified, enabling more informed management of the process of separation of fine-grained ores and materials in laboratory investigations and in industrial environments. Recommendations are provided for the operation of short-cone hydrocyclone plants for various finegrained materials.
The work was performed with the financial aid from the Ministry of Education and Science of the Russian Federation for the CP «Research and development in priority areas for the development of Russia’s scientific and technical complex for 2014–2020», project RFMEFI57417X0168.

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