TRAPPING OF FINELY-DIVIDED SOLID PARTICLES FROM GAS FLOWS IN RECTANGULAR SEPARATORS

Abstract

The PURPOSE of the paper is to consider the possibility of efficient purification of gases from small diameter solids (1-10 microns) by finely-divided particles precipitation on the H-beams of a rectangular separator designed by the authors as well as to study the effect of different initial velocities of the gas flow on particle deposition when they are in contact with separation columns. METHODS. ANSYS Fluent software package has been used to study the trapping of finely-divided particles whose diameter is less than 10 μm. Numerical simulation has been carried out through solving differential equations of motion and continuity. The turbulence model-SST has been used to close the system of equations. RESULTS AND THEIR DISCUSSION. The results of computer simulation and the analysis of the influence of gas flow velocity and solid particle diameter on separator efficiency are presented. The maximum efficiency of the separator is achieved when the gas flow rates are injected below 3 m/sec. CONCLUSIONS. The use of a rectangular separator increases the specific area of the contact surface of phases and simultaneously decreases the hydraulic resistance to the gas flow.