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US 12,115,476 B2Granted
Filter apparatus, filter disc sectors, filter elements and uses
OwnerSteve C. Benesiinventor
Life of this patent
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Abstract
A filtration device can be configured to form filter cakes and filtrate by filtering solid particulates from a slurry. Some embodiments of the filtration device can utilize a mechanism that is configured to separate the formed filter cake from a disc sector for subsequent processing of the solid particulates of the filter cake and/or the formed filtrate. Embodiments of the filter device and/or mechanisms of the filter device as well as methods of making and using the same can help provide improvements in operational efficiency for processing operations in which solids are to be filtered from a slurry.
Claims22
A filtration device comprising:
- at least one rotatable disc that is rotatable so disc sectors are insertable into a slurry bath positioned adjacent the at least one rotatable disc, the disc sectors configured to form filter cakes comprised of solid particulate material of the slurry via rotation of the at least one rotatable disc;
- at least one of:
- (i) a scraper comprising at least one scraper member configured to scrape filter cakes formed on the disc sectors of at least one disc via the at least one scraper member directly contacting at least one filter element of each of the disc sectors of the disc to remove the filter cake for directing solid particulate material of the filter cake to at least one discharge chute;
- (ii) a backwash mechanism configured to feed backwash fluid to the disc sectors of the at least one rotatable disc via tube manifolds connected to a backwash mechanism tank of the backwash mechanism so backwash fluid flows through inner spaces defined by a frame and at least one filter element of each of the disc sectors via the tube manifolds and is output from passageways of the at least one filter element to clean the filter element during a backwash operation, the backwash fluid including liquid, gas, or a combination of liquid and gas;
- (iii) a dip mechanism configured so that the disc sectors of each disc move independently of each other between a retracted position and an extended position so that the disc sectors are in the extended position when passing through the slurry bath and are in the retracted position when out of the slurry bath during rotation of the at least one rotatable disc;
- and
- (iv) a master valve assembly configured so that at least one disc sector of each disc receives a backwash fluid flow while vacuum flows of fluid is passed out of other disc sectors of each disc during each revolution of the at least one disc;
- and
- wherein the filtration device includes the dip mechanism, the dip mechanism including:
- a first tube manifold moving device connected adjacent first ends of the tube manifolds;
- and
- a second tube manifold moving device connected adjacent second ends of the tube manifolds.
9 more elements
Dependencies are inferred from the claim text.