Filtering apparatus employing the rotor for multistage generating variable vortex flow

A closed-type filtering apparatus employing a multistage rotor generating variable vortex flow in which introduced raw water containing contaminants for filtering is separated into purified/treated water and concentrated water containing concentrated contaminants so as to be discharged, the filtering apparatus comprising:

• a closed-type barrel having a left lid unit and a right lid unit therein and forming a body of the filter apparatus;
• plural plate-type, porous membranes installed spaced apart in an inner wall of the barrel to filter the raw water;
• a rotary shaft installed in a central portion of the barrel and connected to a driving shaft of a motor;
• plural rotary rotors of varying diameter installed spaced apart on the rotary shaft and alternatively arranged with the membrane, and configured to generate vortex;
• a raw water inlet installed the left lid unit:
• a purified water outlet installed in the right lid unit;
• a concentrated water outlet installed in the right lid unit,
• a supporting bracket installed at a predetermined distance and configured to prevent the rotary shaft from bending or drooping;
• a subsidiary bracket configured to support the barrel;
• and
• a plurality of rectangular or triangular shape of vortex generating projections formed at a predetermined distance in an outer surface of circumference of the rotary rotor,
• wherein the smallest diameter of rotary rotor is installed in the raw water inlet through which the raw water inflows and the diameter of rotary rotor is gradually increased towards the concentrated water outlet, and
• wherein the triangular shape of vortex generating projection is alternatively arranged to have one side of triangle faces top and another side faces down, and
• wherein the membranes and the rotary rotors are disposed perpendicular to the ground.