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Abstract. Peculiarities of separation processes in cyclone battery separators have been considered on liquid and solid disperse phases. The difference in efficiency between individual and battery liquid separators is slight .Concentration of disperse liquid phase in refined gases is 0.1-0.3 kg/kg. In operating on dry gases with abundance of dust the separation condition changes due to peculiarities of disperse phase behavior from solid particles .Flow parameter assessments in cyclones by different correlation of flow areas at the input and output have been conducted. Differences of flow parameters in conical and cylindrical cyclones have been explored. The analysis and causes of unsatisfied work of industrial battery separator with cyclone elements have been carried out.Battery devices with cyclone elements are extensively used in oil and gas industry for extraction of liquid and solid impurities from natural and petroleum gas [1]. There are a lot of different battery separators, characterized by geometric correlations of cyclone elements, their arrangements, elements of flow stabilization, acquisition of disperse phase from the flow and refined gas. In most cases these separators operate on gas-liquid flow. The concentration of disperse phase in refined gases is within the acceptable limit in this case. In operating of these separators on dry gases with abundance of dust the situation changes due to peculiarities of disperse phase behavior from solid particles. The comparison of cylindrical and conical cyclonesThe main geometrical correlations that affect the efficiency and hydraulic resistance are relations of inlet pup-joint area to cyclone planned area, the relation of inlet pup-joint area to gas outlet pup-joint area, the relation of dust outlet to outlet pup-joint area, cyclone cone angle [2].One can have an idea of flow characteristics in cyclones with different geometry using data [2,3], where there are distributions of flow velocity fields in the volumes of conical and cylindrical cyclones. The distribution of circular velocity moments, but not the very velocities, is presented in [2]. As a matter of fact, the scale for moments relates to circular velocities that is easy checked up by gas balance consumption at the separator inlet and outlet. Typical flow lines have been given in cyclones [2,3]. Given data [2,3] have been used for determinations n mi and n Ri from correlationsa Corresponding author: zpavel@tpu.ru This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract. The task of developing a centrifugal air classifier is to improve the efficiency of classification and to extend the range of regulation for separation boundaries of various micropowders, especially in the field of particle sizes equal to less than 10 microns.The mechanism of centrifugal separation of particles is considered in [1], where it is shown that motion of particles in a separation zone is both of a deterministic and random character. As currently it appears impossible to create an accurate model of the process taking into account the polydispersity of a powdered material, the concentration of a heterogeneous medium, the rotation of particles, as well as their interactions with each other and the channel walls, the turbulent fluctuations and the inverse effect of particles onto the carrier flow, it is advisable to consider the aerodynamics of the carrier flow and motions of individual particles in the carrier stream with a known velocity distribution separately [2].Let us consider the physical formulation of the problem for a profiled zone of a separation classifier (Fig. 1). The geometry of the separation classifier's zone, which actually is the zone in which the process of separating a powder into large and small products takes place, consists of two discs spaced H from each other, which rotate at a certain angular velocity d around the axis OZ.The bottom disc is flat, the upper one is profiled varying as Z = f (R). Along its perimeter the structure receives an outside air flow (cross section A-A) with a certain angular velocity g and a radial velocity component U 1 . Then, due to pressure difference, it passes through the working area of the structure and leaves it through the cross section C-C. Through the lower outlet (cross section R 2 -R 3 ) an additional gas flow Q add is supplied at an angular velocity add together with particles which, under the effect of the centrifugal and the aerodynamic forces, fall into coarse and fine fractions. Moreover, due to prevalence of the aerodynamic force, the fine separation product passes through the working area and it is removed from the separation element in the cross section C-C. Under the action of the centrifugal force the coarse fraction extraction is conducted through the cross section A-A.Formation of areas with a high concentration of particles not only degrades the aerodynamic situation in the separation zone, but also prevents the passage of fine particles into the fine separation product. Using unsteady oscillations of the carrier medium rate allows reduction of residence time for particles of a boundary size and a size close to it and, thereby, reduction of rope-formed compositions of particles in the separation zone of the centrifugal machine. a Corresponding author: zpavel@niipmm.tsu.ru This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.