Abstract

The present invention provides a multi-structure filtration device for filtering, separating, and dehydrating foreign substances in water, the multi-structure filtration device comprising: a filtration tank filled with filtration target fluid inside; a filtration device unit having a cylindrical double drum structure, installed in the filtration tank so that a part of the filtration device unit is submerged in the filtration target fluid, and including two or more filters having different mesh sizes that are respectively wound on an inside and an outside of the filtration device unit, and one or more washing modules washing foreign substances attached to the filter wound on an outside of the filtration device unit. Accordingly, the multi-structure filtration device can have excellent filtration performance by double-filtering the target fluid using two or more filters, can operate in an eco-friendly manner by recycling filtered water and effectively washing the filters using the filtered water without separate chemicals, can increase the durability of the filters, and can reduce the washing and processing cost by reusing the filters.

IPC Classes  ?

• B01D 33/067 - Construction of the filtering drums, e.g. mounting or sealing arrangements
• B01D 33/073 - Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
• B01D 33/46 - Regenerating the filter material in the filter by scrapers, brushes or the like acting on the cake-side of the filtering element
• B01D 33/50 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
• B01D 33/64 - Handling the filter cake in the filter for purposes other than for regenerating for drying by compression
• B01D 33/70 - Filters with filtering elements which move during the filtering operation having feed or discharge devices
• B01D 33/80 - Accessories
• B01D 33/41 - Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in series connection

Abstract

According to the present invention, provided is a multi-structure filter device for filtering out, isolating and dehydrating foreign matter in water, the filter device comprising: a filter tank in which a fluid to be filtered is filled therein; a filter device part which has the shape of a cylindrical double-structured drum provided to be submerged in the fluid to be filtered of the filter tank, and in which two or more filters having different mesh sizes are wound on the inside and the outside thereof; and one or more washing modules for washing off the foreign matter stuck to the filter wound on the outside of the filter device part, and thus the fluid to be filtered is double-filtered by means of the two or more filters so that filtration performance is excellent, the filters can be effectively washed using filter water without using separate chemicals, so that the present invention is eco-friendly, and the filter water can be recycled, the durability of the filters can be increased, and the filters can be reused so that washing costs can be reduced.

IPC Classes  ?

• B01D 33/067 - Construction of the filtering drums, e.g. mounting or sealing arrangements
• B01D 33/46 - Regenerating the filter material in the filter by scrapers, brushes or the like acting on the cake-side of the filtering element
• B01D 33/50 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
• B01D 33/64 - Handling the filter cake in the filter for purposes other than for regenerating for drying by compression
• B01D 33/80 - Accessories
• B01D 33/70 - Filters with filtering elements which move during the filtering operation having feed or discharge devices

Abstract

The present discloses a waste screening apparatus comprising: a main body; a waste screener vertically and tiltedly disposed in the main body to screen wastes in the input water and to allow waste-removed water to be discharged through water discharge holes defined in both side faces of the main body respectively, wherein the waste screener vertically circulates in a conveyor manner, wherein the input water is input to a front, rear and bottom of the waste screener; wherein the main body includes: both side walls having the water discharge holes defined therein respectively to allow waste-removed water to be discharged out from the waste screener therethrough; and a rear blocking wall disposed at a rear of the waste screener to be spaced from the waste screener, wherein the input water passes through front and rear portions of the waste screener with wastes being removed from the input water, and, then, is discharged out through the water discharge holes defined in the both side walls respectively.

IPC Classes  ?

• B01D 33/04 - Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
• E02B 8/02 - Sediment base gatesSand sluicesStructures for arresting waterborne material
• B01D 33/76 - Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
• B01D 33/00 - Filters with filtering elements which move during the filtering operation
• B01D 33/46 - Regenerating the filter material in the filter by scrapers, brushes or the like acting on the cake-side of the filtering element
• B01D 33/80 - Accessories
• C02F 1/00 - Treatment of water, waste water, or sewage