Abstract

The purpose of the present invention is to provide a backwash suction apparatus and a fibrous filter using same so that filtration effect of the fiber is enhanced and lifespan thereof is extended by allowing the backwash suction apparatus mounted so as to be in contact with the disc filter to be detached therefrom when not in operation to discard foreign matter attached at the back of the fiber, thereby preventing the fiber, disposed on the disc filter, from being pressed down for an extended period of time by the backwash suction apparatus. Another purpose of the present invention is to provide a backwash suction apparatus and a fibrous filter using same in which the backwash suction apparatus is spaced from the disc filter via buoyancy, thus having a simple construction and easy operation, thereby allowing the backwash suction apparatus to be attached and detached.

IPC Classes  ?

• 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 33/44 - Regenerating the filter material in the filter
• B01D 33/15 - Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
• B01D 39/14 - Other self-supporting filtering material

Abstract

The present invention relates to a suctioning apparatus for a fibrous filter, and to a filtering device using same, and more particularly, to a suctioning apparatus for a fibrous filter which is configured using a partition wall or a partition to form a main suctioning slit and a sub-suctioning slit parallel thereto, so that a villus passes through the sub-suctioning slit, delaying straightening, and moves laterally and then is quickly straightened at the main suctioning slit, in order to increase the effects of reverse cleaning, and to a filtering device using same.

IPC Classes  ?

• B01D 33/39 - Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in parallel connection concentrically or coaxially
• B01D 33/74 - Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging filtrate
• B01D 33/15 - Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces

Abstract

Provided are a suction apparatus for a fabric filter and a filtering device for liquid filtration using the same. A main suction slit and a sub-suction slit are provided in parallel by a partition. Thereby, pile threads undergo delayed straightening and fluctuation while going through the sub-suction slit and then are rapidly straightened in the main suction slit. Thus, a back-washing effect can be further improved.

IPC Classes  ?

• B01D 25/32 - Removal of filter cakes
• B01D 29/39 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
• B01D 29/68 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
• B01D 33/21 - Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
• B01D 33/48 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
• 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 29/66 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps