초록 ▼

A hollow fiber filter device has a plurality of fiber filter modules suspended therein, the filter module being improved in rigidity and arranged to be easily handled while minimizing the risk of being damaged by securing the opposite ends of hollow fibers of the hollow fiber bundle to two bundle pl

A hollow fiber filter device has a plurality of fiber filter modules suspended therein, the filter module being improved in rigidity and arranged to be easily handled while minimizing the risk of being damaged by securing the opposite ends of hollow fibers of the hollow fiber bundle to two bundle plates and by extending a central pipe from one of the bundle plates through the other of the bundle plates, the module being encased within a protecting hollow cylinder with perforated walls.

대표청구항 ▼

A hollow fiber filter device comprising: a filter casing having an inlet port and an outlet port; a plurality of filter modules extending vertically within said casing, each of the modules comprising a bundle of hollow fibers, each of the hollow fibers for filtering liquid passing therethrough from

A hollow fiber filter device comprising: a filter casing having an inlet port and an outlet port; a plurality of filter modules extending vertically within said casing, each of the modules comprising a bundle of hollow fibers, each of the hollow fibers for filtering liquid passing therethrough from the outside to the inside thereof, filtrate of the liquid adhering to the outside of the fibers, an upper bundle plate to which upper ends of the hollow fibers are secured and are open so as to be able to pass liquid therethrough, a lower bundle plate to which lower ends of the fibers are secured and closed, the fibers extending between said upper bundle plate and said lower bundle plate in a slightly slackened state, a central pipe extending through the center of said bundle of hollow fibers, the central pipe having one end thereof secured to the upper bundle plate and an open portion thereof secured to the lower bundle plate while remaining open so as to be able to pass liquid therethrough, the central pipe having a plurality of holes extending through a part of said open portion that extends through the center of the bundle of hollow fibers, and a protecting hollow cylinder surrounding the bundle of hollow fibers and having a plurality of perforations extending therethrough; a horizontal member within said casing and above which a space is defined in the casing, said horizontal member having a plurality of openings extending therethrough that are open to said space, each of said filter modules mounted to and suspended vertically from the horizontal member with the upper open ends of the bundle of fibers thereof open to a respective one of said openings; an air injection means within said casing and below said modules for injecting air bubbles into liquid within the casing; and an air distribution panel between said air injecting means and said plurality of modules for directing said air bubbles injected into the casing at the bottom of the modules suspended from the horizontal member to contact and vibrate the bundles of hollow fibers for removing the filtrate from the outside thereof.