چكيده به لاتين
Considering the importance of increased cyclone efficiency and the growing need for separation in the industry, as well as the modernity of this equipment and the lack of extensive research in this field, scientific activity, including laboratory studies and theoretical calculations, seems necessary.
One of the ways to increase the cyclone's efficiency is to get gas flow from the bottom of the cyclone, which has not been investigated so far. By taking the flow of gas from the bottom of the cyclone, in addition to increasing the total flow, the arrangement of the material flow into the cyclone is changed, and the vibrations will continue to the bottom of the cyclone, resulting in greater centrifugal force and ultimately improved efficiency.
In this study, the separation of solid particles of silica and black powder from air was studied by cyclone as a dustable condenser experimentally and the separation efficiency was analyzed.
The laboratory system consists of two cyclones of the Strewn type, two bag filters, two collectors, two air suckers and a communication path from the bottom of the main cyclone to the auxiliary cyclone. Laboratory results show that the efficiency of separation is increased by 4% and 7%, respectively, with the flow of m3 / h 5, m3 / h 10 from the bottom of the cyclone compared with the state where the flow is not taken down and the cyclone is operating normally. Also, in one of the modes, by comparing the control valve and not taking the flow of gas from the bottom of the silo, a general comparison was made with the two previous modes. This cyclone, as a dust collector at the bottom of a cyclone collector, improves efficiency and can not be used alone.
Also, shortening the pipe connected to the cyclone cone, which was always a negative factor, in this case increases the efficiency by 2%.
With this method particles smaller than 5 microns are removed with acceptable efficiency from the airflow.
Keywords: Cyclone, Silica and Black Powder, Dust Condenser, Stairmand, Separation efficiency.