Experimental investigation of a dynamic-static rotor separator

Presented is a test rig for studying the performance of a dynamic-static rotor separator. With pulverized coal serving as a raw material the separator was tested under a variety of conditions, including different airflow rates, different rotating speeds and different concentrations of pulverized coal being fed. After processing and analyzing the test results it has been found that a decrease in airflow rate, an increase in rotating speed and a lowering of pulverized coal concentration can result in a more finely pulverized coal at the outlet with R₉₀ attaining 5.43% and a comprehensive separation efficiency in that case being assessed at 52.46%. However, the adjustment of the above- cited three parameters will engender both favorable and undesirable consequences in respect of separation efficiency and resistance. In view of this, the variation of the latter two items should be closely watched and determined through detailed analyses and specific tests.