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http://dx.doi.org/10.5762/KAIS.2020.21.3.230

A Study on the Optimization of Anti-Jamming Trash Screen with Rake using by Response Surface Method  

Seon, Sang-Won (Mechanical Engineering, Soongsil University)
Yi, Won (Mechanical Engineering, Soongsil University)
Hong, Seok-Beom (HANA Industry)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.3, 2020 , pp. 230-236 More about this Journal
Abstract
A trash screen is installed in front of the inflow channel of a drainage pumping station, sewage treatment plant, and a power plant to block floating contaminants. The bottleneck phenomenon, which decreases the water inflow, causes damage to the damper as a result of clogging in between the screen if string type obstacles are not removed. In this paper, the apron was removed, and the screen was expanded, to prevent breakage of the bottleneck phenomenon and string type obstacles. This was designed using an extended rake by adding an inner rake in between the screen interspace to remove the bottleneck phenomenon and string type obstacles. To design the inner rake that satisfies the allowable stresses of the existing damper rake, the experiment points were determined according to the experimental design method using the inner rake vertical length and the thickness of the reinforced section as parameters. The use of the ANSYS static structural module and statistical analysis tool R software gives the optimized shape according to the response surface method. The relative error between the response surface analysis results and the simulation results was 1.63% of the determined optimal design-point rake length of 210.2 mm and the reinforcement section thickness of 2 mm. Through empirical experiments, a test rake was constructed to the actual size, and approximately 97% of the bottleneck phenomenon and string type obstacles could be removed.
Keywords
Trash Screen; Inner Rake; Structure Analysis; Anti-Jamming; Response Surface Method;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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