| 摘要 |
The present relates to an apparatus for filtering a sewage foreign matter and, more specifically, to an apparatus for filtering a sewage foreign matter to remove a foreign matter from a surface of the filter and to prevent a foreign matter from being attached to the surface of the filter by filtering water introduced into a storage tank. The apparatus for filtering a sewage foreign matter of the present invention can reduce a phenomenon of deteriorating a filter function due to a foreign matter or impurity, contained in the water introduced through an inlet tube and attached to a drainage hole formed in the filter, by using a spiral blade and a foreign attachment prevention protrusion formed in the filter. Moreover, the apparatus for filtering a sewage foreign matter of the present invention can quickly clean a blocked filter by adjusting the introduction of water introduced through the inlet by detecting blocking of the filter when a foreign matter is attached to the inside of the filter. |
