净化油烟金属滤网的分离再生研究

Research on the Regeneration of Metal-strainer Applied to Lampblack Purification

基于油滴的表面张力随温度升高而降低的机理,分别考察金属滤网表面温度为20℃和70℃时的表面张力,利用调速电机带动金属滤网旋转产生的离心力,分离粘附于滤网表面的油污,结果表明温度为70℃,转速为1 000 r/min时,分离净化率可达98%。用该方法去除网表面的油污能解决由于油污积累所导致的过滤时间短、过滤阻力大等缺点,而且能实现滤网的可再生。

Based on the mechanism that the surface tension of oil reduce when temperature rise.Investigated the surface tension of copper-strainer on the temperature 20℃ and 70℃.Used centrifugal forces produced by the rotating speed control copper-strainer to separate greasy dirt adhere to it.The result shows that purifying rate can reach to 98% when temperature is 70℃ and rotate-speed is 1000r/min.This method has superiority such as lower energy consumption、little noise and has no secondary contamination,also can make the face of strainer regenerate.