Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Characteristics Studies of Waste Tire Rubber Powders using the Different Grinding Methods

분쇄 방식에 따른 폐타이어 고무분말의 특성 연구

  • Park, Jong-Moon (Department of Advanced Materials Engineering, Kumoh National Institute of Technology) ;
  • An, Ju-Young (Department of Advanced Materials Engineering, Kumoh National Institute of Technology) ;
  • Bang, Daesuk (Department of Energy and Integrated Materials Engineering, Kumoh National Institute of Technology) ;
  • Kim, Bong-Seok (Dasung) ;
  • Oh, Myung-Hoon (Department of Advanced Materials Engineering, Kumoh National Institute of Technology)
  • 박종문 (금오공과대학교 신소재공학과) ;
  • 안주영 (금오공과대학교 신소재공학과) ;
  • 방대석 (금오공과대학교 에너지.융합소재공학부) ;
  • 김봉석 (다성) ;
  • 오명훈 (금오공과대학교 신소재공학과)
  • Received : 2014.05.02
  • Accepted : 2014.06.09
  • Published : 2014.06.30
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Abstract

In this study, a method of shear crushing and a two-stage disk mill were introduced to grind the waste tire powder. Rubber chips with various size were obtained during the crushing or grinding step. The two-stage disk mill was composed of two drum-type blades rotating at various speed and in opposite directions. Therefore, more roughly surfaced particles of micronized waste tire powder were obtained using shear crushing rather than using conventional cutting crushing. In this study, the shape of shear-crushed waste tire particles was compared with conventional cutting crushing particles by scanning electron microscope. In addition, the particle size analyzer was employed to determine the appropriate particle size of waste ground tire powders obtained in this study.

본 연구에서는 기존의 cutting 분쇄방식 대신 여러 가지 문제점을 개선한 shear방식 및 2단 disk mill 방식으로 폐타이어를 미분화시켰다. 각 파쇄 또는 분쇄 단계별로 다양한 크기의 고무 칩을 얻을 수 있었다. Shear방식 및 2단 disk mill 방식은 회전 속도와 방향이 다른 두 개의 드럼형의 칼날로 이루어져 있어서 기존의 cutting 방식보다 거친 표면의 미분화 폐타이어 분말을 얻을 수 있었다. 본 연구에서는 주로 shear방식으로 미분화된 폐타이어 분말의 형상을 SEM을 통해 비교하였다. 추가적으로 적절한 크기의 폐타이어 분말이 얻어졌는지를 확인하기 위해 입도분석을 수행하였다.

Keywords

References

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