General process for waste vinyl pretreatment system is consisted of separating, crushing, washing, drying and recovering impurities. However, there are problems such as wastewater when washing of waste vinyl. In order to solve these problems we have developed new dry type cleaning system. This system consists of five equipment : 1) Hydraulic cutter to cut in 1m size, 2) 1st crusher to cut in 20～30cm size, 3) 2nd crusher to cut in 3～8cm size. 4) Separation to recovering impurities. 5) Thermal fiow dryer to dry.

Abstract
 1. 서론
  1.1 폐비닐의 재활용 방법
  1.2 폐비닐의 전처리
 2. 폐비닐의 전처리 시스템의 설계
  2.1 전처리 방식의 결정
  2.2 이물질 함유량의 추정
  2.3 시스템처리능력의 결정
  2,4 전처리 시스템의 공정 설계
  3.3 전처리시스템의 상세 설계
 3. 전처리 시스템의 구축
 6. 결론
 7. 참고문헌

• 이현용(명지대학교 산업경영공학과)
• 김순진(명지대학교 산업경영공학과)
• 이병기(명지대학교 산업경영공학과)