Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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INVESTIGATION OF THE OPERATIONAL PRINCIPLE AND PARAMETRIC STUDY ON A DRY PASTE SEPARATOR EQUIPED WITH A ROTOR - I. THEORETICAL STUDY

로터 장착 건식 미분 분리기의 작동원리 규명 및 파라미터 연구 -I. 이론 해석

  • Park, S.U. (Department of Mechanical Engineering, Dong-A University) ;
  • Kang, Y.S. (Research Institute, Kumho Machinery Co. Ltd.) ;
  • Kang, S. (Department of Mechanical Engineering, Dong-A University) ;
  • Suh, Y.K. (Department of Mechanical Engineering, Dong-A University)
  • Received : 2015.11.06
  • Accepted : 2015.12.16
  • Published : 2015.12.31
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Abstract

Construction waste is known to include a large part of coarse and fine aggregates, which can be recirculated in the industry. Separating those aggregates economically from the waste has been thus considered to be one of the most important issues in this field. In particular, paste mixed in the waste causes significant complain from the inhabitants living near the place where waste-processing equipments are built and operated. In this study, we investigate the operational principle of a newly developed paste separator by using theoretical (in this first part) and CFD (in the second part) analysis. The separator consists of a rotor which turned out to play a significant role in separating those pastes from the aggregates. Under suitable assumptions regarding the air flow velocity as well as the particle velocity, we show that particles can be stagnant at the outlet of the roto channel for a wide range of parameter values, which allow the particles to get enough time to settle down via the gravitation. We also demonstrate such phenomenon by using a simple numerical simulation.

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References

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