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Volume 6, No. 1, March 2006, Pages 1-14 PDF(3.02 MB)  
doi: null   

Removal of Soot Particles in Rubber Smoking Chamber by Electrostatic Precipitator to Improve Rubber Sheet Color

Surajit Tekasakul1, Maitree Tantichaowanan1, Yoshio Otani2, Prakan Kuruhongsa3,Perapong Tekasakul4

1 Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
2 Department of Chemical Engineering, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan
3 Department of Electrical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
4 Department of Mechanical Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand

 

Abstract

 

Soot particles from wood combustion in the rubber-sheet smoking process darkens the dried sheets, affecting their market price unfavorably. A technique to remove a portion of these particles, especially during the first day of drying, was investigated. A wire-cylinder type corona discharge device or electrostatic precipitator (ESP) was employed to remove the soot particles. Results from a laboratory collection performance test using polystyrene latex particles indicated that the ESP was suitable for use at 220 VAC, which is the highest available voltage supply. The field-test results in a model burner indicated that the device could be used for a period of about 10 hours without cleaning and it could still maintain the collection efficiency at a satisfactory level (higher than 40%). The color of the dried rubber sheets obtained from the smoking chamber in which the collecting device was installed was much lighter than that of the rubber sheets dried in normal operation without removing soot particles. This device could be used in a real rubber smoking chamber by installing 12 identical ESP units in the gas inlet to the
chamber.

 

 

Keywords: Corona discharge; Rubber sheet; Particle Collection; Wire-cylinder; High voltage

 

 

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