Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Prediction of Pulse Pressure and Pulse Interval of Change in Operation Conditions of a Pulse Air Jet Bag Filter

충격기류식 여과집진장치의 운전조건 변화에 따른 적정 탈진주기 및 탈진압력 설정

  • Lee, Deok-Gi (Facilities Management Team, LIG Nex1 Co. Ltd.) ;
  • Lim, Woo-Taik (Department of Applied Chemistry, Andong National University) ;
  • Cho, Jae-Hwan (Department of Food and Resource Economics, Pusan National University) ;
  • Choi, Kum-Chan (Department of Environmental Engineering, Dong-A University) ;
  • Shin, Hyun-Moo (Department of Environmental Engineering, Kyungsung University) ;
  • Jang, Seong-Ho (Department of Bioenvironmental Energy, Pusan National University) ;
  • Suh, Jeong-Min (Department of Bioenvironmental Energy, Pusan National University)
  • 이덕기 (LIG 넥스원 안전환경팀) ;
  • 임우택 (안동대학교 응용화학과) ;
  • 조재환 (부산대학교 식품자원경제학과) ;
  • 최금찬 (동아대학교 환경공학과) ;
  • 신현무 (경성대학교 환경공학과) ;
  • 장성호 (부산대학교 바이오환경에너지학과) ;
  • 서정민 (부산대학교 바이오환경에너지학과)
  • Received : 2017.01.20
  • Accepted : 2018.04.27
  • Published : 2018.06.30
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Abstract

In this study, using coke dust from ironwork, the pulse pressure on a pulse air jet bag filter was investigated considering the influence of the pressure loss due to filtration velocity and pressure intervals. The research on the optimal pulse pressure prediction of a pulse air jet type bag filter using coke dust showed the following results. Pressure loss volatility produced by the pulse pressure under low dust concentration(0.5, $1g/m^3$) and low face velocity(1.25 m/min) was less than $10mmH_2O$. This suggests that the pulse pressure has a low impact on the pressure loss. In contrast, pressure loss volatility under high dust concentration($3g/m^3$) and high face velocity(1.75 m/min) was $25mmH_2O$. Therefore, pulse pressure with high dust concentration and high face velocity has a strong influence on the pressure loss volatility, compared to the condition of low dust concentration and low face velocity. The optimal pulse pressure of inlet dust concentration($0.5g/m^3$) was $6kg/cm^2$ under the same face velocity(1.75 m/min). As concentration increased from 1 to $2g/m^3$, the pulse pressure gradually reached $5kg/cm^2$ thus indicating that the pulse pressure($5kg/cm^2$) is pertinent at a high concentration($3g/m^3$). The pulse intervals: 20, 25 and 30 sec, which are relatively longer than 10 and 15 sec, corresponded to high pressure loss volatility produced by the pulse pressure. Furthermore, low pressure loss volatility was noted at $5kg/cm^2$ of the overall pulse pressure.

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References

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