| 摘要 |
<p>PURPOSE:To easily remove dust captured on the filtration surface. CONSTITUTION:A pipeline connection port 6A for cleaning water injection is formed in the center of the upper part of a filter body 1 to heighten the cleaning effect and a lower pipeline connection port 6B used in common for sucking filthy water, carrying out vacuum evacuation, and blowing pressured air is set aside in the lower part to make it easy to suck the filtered water and make the dropping surface area of sludge which is peeled and drops small. Further, a coating 8 which does not permeate water is set on the surface of the upper brim part, the lower brim part, and the edge part of a filter medium 3 in the side where the lower pipe line connection port 6B is formed, so that smuts are prevented from remaining chronically in those parts where cleaning efficiency is low.</p> |
