Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on Design of Vacuum Silo for Batch Treatment System for Dredged Soil

준설토 일괄처리시스템을 위한 진공사이로 설계에 관한 연구

  • Kim, Yong-Seok (Dept. of Mechanical Engineering, Univ. of Ulsan) ;
  • Yang, Hae-Rim (Dept. of Mechanical & Automotive Engineering, Graduate School, Univ. of Ulsan) ;
  • Kim, Hac-Sun (Dept. of Mechanical & Automotive Engineering, Graduate School, Univ. of Ulsan) ;
  • Jeoung, Chan-Se (Dept. of Mechanical & Automotive Engineering, Graduate School, Univ. of Ulsan) ;
  • Yang, Soon-Yong (Dept. of Mechanical Engineering, Univ. of Ulsan)
  • 김용석 (울산대학교 기계공학부) ;
  • 양해림 (울산대학교 기계자동차공학과) ;
  • 김학선 (울산대학교 기계자동차공학과) ;
  • 정찬세 (울산대학교 기계자동차공학과) ;
  • 양순용 (울산대학교 기계공학부)
  • Received : 2011.06.22
  • Accepted : 2012.02.09
  • Published : 2012.05.01
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Abstract

In this study, a small movable batch treatment system for dredging soil deposited in a rain water tube is proposed; further, a vacuum silo sorting separation device with a vacuum silo, first-stage sorting separator, and conveyor is designed. The vacuum silo sorting separation device also consists of a storage tank, transferring screw, vacuum gate, screen bar, screen bar cleaner, and vacuum discharging device. In view of the fact that the flow of drawn air in the storage tank is a major factor influencing the sorting separation performance, the optimum shape of the tank is determined by CFD flow analysis. In addition, by using CAE structure analysis, the safety of a storage tank made of boards is examined. The specifications of the vacuum silo sorting separation device are determined by conducting mechanical and dynamic simulations of the driving mechanism of the vacuum silo sorting separation device through 3D-CAD modeling. Following this study, we will design a drum-screen-type second sorter, a decanter-type dehydration device, and waste water tank and pump as a secondary device. Further, on the basis of this design, we will construct a prototype model and carry out a field test.

본 논문에서는 우수관로부터 발생되는 퇴적토의 준설처리를 위한 소형의 이동식 준설일괄처리 시스템을 제안하고, 특히 진공사이로와 1차 선별분리기 그리고 컨베이어를 일체화하는 진공사이로 선별분리장치를 설계하였다. 진공사이로 선별분리장치는 저장조, 이송 스크류, 진공 게이트, 스크린 바, 스크린 바 클리너, 진공배출장치로 구성된다. 특히 저장조 내에서 흡입공기의 흐름은 선별분리 성능의 주요 요소임을 고려하여 CFD 유동해석을 통해 최적형상을 도출하였다. 또한 CAE 구조해석을 통해 판재로 이루어지는 저장조의 안전성을 검토하였다. 그리고 3D-CAD 모델링을 통한 구동 메커니즘의 기구적, 역학적 시뮬레이션을 수행하여 사양을 결정하였다. 본 연구에 이어서, 드럼 스크린형 2차선별기, 데칸터형 탈수장치 그리고 보조장치인 오수탱크와 펌프 등을 설계할 것이다. 그리고 본 설계를 바탕으로 시제품을 제작하고 필드테스트를 수행할 것이다.

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