고지재생연구(제9보) -부상부유 처리조건이 골판지 고지의 분급효율에 미치는 영향과 미세분 분급의 원리-

Recycling of Wastepaper(IX) -The Effect of Flotation Conditions on the Efficiency of KOCC Fractionation and Principles of Fines Fractionation-

  • 여성국 (한국화학연구소 펄프제지연구센터) ;
  • 지경락 (한국화학연구소 펄프제지연구센터) ;
  • 류정용 (한국화학연구소 펄프제지연구센터) ;
  • 신종호 (한국화학연구소 펄프제지연구센터) ;
  • 송봉근 (한국화학연구소 펄프제지연구센터) ;
  • 서영범 (충남대학교 임산공학과)
  • 발행 : 2000.12.01

초록

In order to investigate the influencing factors in flotation fractionation, flotations were performed at varied conditions. The selectivity of fines fractionation was mainly affected by long fiber flocculation degree and if there were not sufficient flocculation of long fibers, more loss of long fibers could not be avoided. The amount of flotation rejects were totally dependent on the stability of froth floated on the stock surface. Only small size fines could stabilize the froth as they hindered the drainage of liquid lamella in flotation-froth. More flotation reject and better flocculation of long fibers were two important factors for improving flotation. Changing a flotation flux or an air-mixing ratio to increase the flocculation of fibers increased long fiber ratio in the reject. In order to satisfy the both conditions of reducing long fiber loss and of increasing flotation reject, search of fractionation promoter is needed.

키워드

참고문헌

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