Estimation of Rectangular Separator Efficiency

Abstract

Gas cleaning systems are used in many industries and in everyday life. For example, trapping particles and droplets from process gases; air cleaning in spray booths; separation of particles in pneumatic transport systems; cleaning of air supplied to power plants. Typically, the main element of this system is a filter or a cyclone. Cyclones create great hydraulic resistance and cannot catch small particles. Filters, after a while they clog, they cannot be restored and they need to be changed. Therefore, the authors have developed a device capable of catching small particles with little hydraulic resistance. It has a simple construction. It lacks small parts and small channels. The device can be used instead of cyclones. Alternatively, it can be used to pre-purify gas flows in front of the filters. This will significantly increase the period of their replacement. The procedure of solid particles and droplets capture efficiency calculation in rectangular separators is presented. It is shown that high values of process efficiency are obtained in case of small particles separation. Recommendations on the selection of optimal technological and design parameters are suggested. If these separators are installed before the filters, they can significantly extend service life of filters.