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http://dx.doi.org/10.5322/JESI.2018.27.6.349

Prediction of Pulse Pressure and Pulse Interval of Change in Operation Conditions of a Pulse Air Jet Bag Filter  

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)
Publication Information
Journal of Environmental Science International / v.27, no.6, 2018 , pp. 349-358 More about this Journal
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.
Keywords
Bag filter; Pulse air jet; Coke dust; Pulse pressure; Pressure loss;
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