Abstract
To optimize the structural parameters of the enhanced cyclone with shunt device (ECSD), the effects of the cylinder-to-cone ratio and the vortex finder-to-cylinder ratio on the performance of the ECSD were studied. The Reynolds stress model and discrete phase model were used to capture the three-dimensional strong rotational turbulence in the ECSD and predict the motion of particles, respectively. The simulation results show that the optimal cylinder-to-cone ratio ranges from 0.5 to 2.8, and both the total and reduced separation efficiencies of the ECSD can reach more than 80% when the vortex finder length keeps 100 mm or the vortex finder-to-cylinder ratio remains 0.67. The maximums of total and reduced separation efficiencies are 88.4% and 86.9%, respectively, with the cylinder-to-cone ratio of 1.63 and vortex finder-to-cylinder ratio of 0.67, which is different from the optimal cylinder-to-cone ratio for a Stairmand cyclone.
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