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US 2025/0153076 A1Published application
Filter apparatus and filtering method
OwnerSteve C. Benesiinventor
Life of this patent
Estimating the term…
Abstract
A filtration apparatus that can include a filtering device can be configured as a pressure filter. The filter device can facilitate rapid cycling of cake discharge so that the cake formation and discharge sequence can complete itself in a short period of time (e.g. a few seconds, no more than 30 seconds, no more than 10 seconds, up to 18 seconds, less than a minute, less than 3 minutes, etc.).
Claims20
A filtration apparatus comprising:
- a base;
- a filtering device supported by the base, the filtering device being adjustable between an open position and a closed position, the filtering device having a plurality of filter cake generating modules, each of the filter cake generating modules comprising at least one moveable plate, the moveable plates of the filter cake generating modules being moveable to be spaced apart from each other when the filtering device is in the open position and also being moveable to be positioned so that each of the plates is positioned adjacent to or in contact with at least one immediately adjacent other plate of another one of the filter cake generating modules when the filtering device is in the closed position, each of the filter cake generating modules having a first chamber when the filtering device is in the closed position;
- a plurality of filter media, each of the filter media being positionable in a respective one of the first chambers to separate solid particulates of a slurry from a fluid of the slurry to form a filter cake;
- and
- a filter device adjustment mechanism positioned to drive motion of the filter cake generating modules so the plates of the filter cake generating modules move away from each other to be spaced apart from each other when the filtering device is in the open position and also drive motion of the filter cake generating modules so the plates of the filter cake generating modules moved to be positioned adjacent to immediately adjacent ones of the plates of the filter cake generating modules when the filtering device is in the closed position.
2 more elements
A method of filtering particulate material from a slurry, comprising:
- adjusting a filtering device of a filtering apparatus to move the filtering device to a closed position to close filter cake generating modules under sufficient pressure to offset filter chamber separating pressure from at least one influent fed into first chambers of the filter cake generating modules, the at least one influent comprising a slurry;
- feeding the slurry into the first chambers while the filter cake generating modules are in their closed positions until the first chambers are filled to form filter cakes therein;
- passing washing fluid into the filled first chambers to wash the formed filter cakes within the first chambers;
- passing at least one gas into the first chambers to remove residual moisture from the filter cakes after the passing of the washing fluid into the filled first chambers to remove residual moisture from the filter cakes after they have been washed;
- adjusting the filter device to an open position to open the first chambers of the filter cake generating modules;
- removing the filter cakes from the filter cake generating modules via a media advance system and positioning filter media within the first chamber of the filter cake generating modules while the filtering device is in the open position for use in a subsequent filter cake generation cycle.
3 more elements
Dependencies are inferred from the claim text.