Screen Device for Filtering Small Aquatic Organisms

Abstract

The present invention aims to provide a screen device for filtering small organisms that can efficiently filter small organisms and foreign substances while simultaneously performing simple and stable cleaning of the filter belt. That is, the present invention is characterized by comprising: a main body plate (10) provided to be supported at a predetermined interval by a reinforcing bar (11); a filter belt (20) disposed between the main body plates (10) and provided to filter foreign substances including aquatic organisms while orbiting; a backwash roller unit (30) disposed on one side of the upper part of the main body plate (10) and provided to backwash foreign substances by outputting compressed air toward the filter belt (20); a backwash air knife (40) disposed below the backwash roller unit (30) and provided to backwash foreign substances by outputting compressed air toward the filter belt (20); and a discharge chute (50) provided with a discharge port (51) at the bottom to collect and discharge foreign substances separated from the filter belt (20). Using the above-mentioned screen device for filtration of small organisms allows for the stable filtration of small aquatic organisms and foreign substances of various sizes and shapes. Furthermore, by effectively removing foreign substances attached to the filtration section through a backwashing method using compressed air within a simple structure, it has the advantage of reducing mechanical wear and maintenance burdens and enabling stable operation over a long period.

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