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US 4,517,087 AGranted
Filtration/separation apparatus
AssigneesHitachi, Ltd., Hyosuke Nagase
InventorsHyosuke Nagase, Tetsuya Sato, Kazuo Kobayashi, Norio Masumoto, Yuji Nagase
Life of this patent
Estimating the term…
Abstract
A filtration/separation apparatus in which a filter cloth is arranged to travel and face a rotor so that a partitioned space chamber defined by the cloth and rotor is gradually narrowed in accordance with the rotation of the rotor. The space chamber defined is partitioned by vanes provided on the rotor, so that the positional relations in contact between the tip ends of the vanes and the filter cloth are maintained desirable with a high accuracy.
Claims10
A continuous filtration/separation apparatus comprising:
- (a) a rotor mounted for rotation about a first center and having a cylindrical outer surface,
- (b) guide means having an inner surface arcuate about a second center which is eccentric with respect to said first center,
- (c) a plurality of frame segments mounted for travelling along the inner arcuate surface of said guide means in a direction in which a space between said guide means and said rotor is narrowed,
- (d) an endless filter cloth mounted for travelling between said plurality of frame segments and said rotor in a direction in which a space therebetween is narrowed,
- (e) a plurality of vanes each disposed retractably from and into the surface of said rotor and having a tip end brought into contact with said filter cloth always in a normal direction with respect to said filter cloth, said vanes each having bendable means between the tip end and a base end,
- (f) a supply port for supplying a material to be processed between said filter cloth and said rotor,
- (g) a take-out port for discharging the material, said take-out port being located at a position where the space between said guide means and said rotor is narrower than that of said supply port, and
- (h) a pair of side plates positioned at opposed end faces of said rotor for closing regions extending at lease from said supply port to said take-out port a viewed in a rotational direction of said rotor and defined by said frame segments and said rotor, said pair of side plates having said tip ends of said vanes fixed thereto.
5 more elements
A continuous filtration/separation apparatus comprising:
- (a) a rotor mounted for rotation about a first center and having a cylindrical outer surface,
- (b) guide means having an inner surface arcuate about a second center which is eccentric with respect to said first center,
- (c) a plurality of frame segments mounted for travelling along the inner arcuate surface of said guide means in a direction in which a space between said guide means and said rotor is narrowed,
- (d) an endless filter cloth mounted for travelling between said plurality of frame segments and said rotor in a direction in which a space therebetween is narrowed,
- (e) a plurality of vanes each disposed retractably from and into the surface of said rotor and having a tip end brought into contact with said filter cloth always in a normal direction with respect to said filter cloth,
- (f) a supply port for supplying a material to be processed between said filter cloth and said rotor,
- (g) a take-out port for discharging the material, said take-out port being located at a position where the space between said guide means and said rotor is narrower than that of said supply port,
- (h) a pair of side plates positioned at opposed end faces of said rotor for closing regions extending at least from said supply port to said take-out port as viewed in a rotational direction of said rotor and defined by said frame segments and said rotor, said pair of side plates having said tip ends of said vanes fixed thereto, and
- (i) means for returning said frame segments from a terminal end of said guide means to a starting end thereof.
6 more elements
A continuous filtration/separation apparatus comprising:
- (a) a rotor mounted for rotation about a first center and having a cylindrical outer surface,
- (b) guide means having an inner surface arcuate about a second center which is eccentric with respect to said first center,
- (c) a plurality of frame segments mounted for travelling along the inner arcuate surface of said guide means in a direction in which a space between said guide means and said rotor is narrowed,
- (d) an endless filter cloth mounted for travelling between said plurality of frame segments and said rotor in a direction in which a space therebetween is narrowed,
- (e) a plurality of vanes each disposed retractably from and into the surface of said rotor and having a tip end brought into contact with said filter cloth always in a normal direction with respect to said filter cloth,
- (f) a supply port for supplying a material to be processed between said filter cloth and said rotor,
- (g) a take-out port for discharging the material, said take-out port being located at a position where the space between said guide means and said rotor is narrower than that of said supply port,
- (h) a pair of side plates positioned at opposite end faces of said rotor for closing regions extending at lease from said supply port to said take-out port as viewed in a rotational direction of said rotor and defined by said frame segments and said rotor, said pair of side plates having said tip ends of said vanes fixed thereto,
- (i) a scraping plate having a free end toward the outer surface of said rotor, and
- (j) a scraping plate drive mechanism for bringing the scraping plate into contact with the outer surface of of said rotor, subsequently advancing said scraping plate in a direction opposite to the rotational direction of said rotor under the condition that said scraping plate is brought into contact with the outer surface of the rotor, and thereafter moving the scraping plate away from the outer surface of said rotor and moving said scraping plate in said rotational direction of said rotor.
7 more elements
Dependencies are inferred from the claim text.