Abstract
The urgency of the issue is reasoned by the necessity to develop environmentally friendly technologies and engineering tools for cleaning emerged mineral oil from insoluble impurities in order to reuse them in the nodes and auto-tractor equipment systems. Hydrocyclone is one of the simplest and most effective means of cleaning waste oil. In order to determine the possibility of hydrocyclone usage in technological lines for purifying oils, it is necessary to establish the influence of its geometrical parameters on the purification quality of such high-viscosity liquid as emerged mineral oils. The purpose of the article is to study theoretically the cylindro-conical hydrocyclone geometrical parameters influence on the purification degree of emerged high-viscosity mineral oils from insoluble and wear debris. The leading approach to the study of this problem is the consideration of the behavior of a non-soluble particle in an oil stream under the influence of forces acting on it, which allows identifying the geometric and regime parameters of a cylindro-conical hydrocyclon. These parameters have the greatest influence on the oil purification degree. The article presents a theoretical justification for the geometrical parameters influence of a cylindrical-conical hydrocyclone on the emerged oil purification degree, a separation criterion, which allows not only determining the optimal size of a hydrocyclone, but also conducting a comparative assessment of hydrocyclones with different geometric parameters by oil purification efficiency from insolubles. Theoretical researches are aimed at determining the cylindro-conical hydrocyclone geometric parameters, depending on the pollution intensity of the emerged mineral oil and the desired degree of its purification from insolubles.
Highlights
The principle of oils and various technical fluids of purification and drying in force fields remains one of the most common
Hydrocyclone units have been increasingly used for the various liquids purification, where solid particles are released from the purified oil stream under the influence of centrifugal forces
The quality of oil purification will be determined by the geometrical parameters of the hydrocyclone and the residence time of the particle in the hydrocyclone, depending on the separation mode
Summary
The principle of oils and various technical fluids of purification and drying in force fields remains one of the most common. Polluted oil under pressure enters through a device for admission 3 of cleaning oil tangentially into the cylindrical part of the body 1 and, acquiring a rotational motion, moves into the conical part of the body 1. This causes significant centrifugal forces exceeding gravity. The lighter fractions move in the inner spiral flow, directed upwards, inside the diaphragm 2 They enter to the internal part of the lid 5 and are removed through the device for draining cleaned oil 4 outside
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