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US 9,616,363 B2Granted
Filtration assembly for gradually screening of fine and coarse particles in a single operational unit
AssigneeAntel Aritma Tesisleri Insaat Sanayi VeTicaret A.S
InventorTameroglu Osman Oguz
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Abstract
The present invention relates to an industrial scale filtration assembly for filtrating a liquid and screening of foreign particles and dirtiness. More particularly the invention pertains to a self-cleaning filtration assembly for gradually screening of fine and coarse particles in a single system by using different filtration screens (2, 4) concentrically formed in a single filter body (13).
Claims17
A filtration assembly for gradually screening coarse and fine particles from a flowing liquid, the assembly comprising:
- a filter body comprising (i) an inlet and outlet, (ii) a cylindrical coarse filtration screen having first screen openings, a first diameter and a first filtration volume, and (iii) a cylindrical fine filtration screen having second screen openings smaller than those of the coarse filtration screen and a second diameter larger than that of the coarse filtration screen, said coarse and fine filtration screens being concentrically placed into the filter body to define a second filtration volume therebetween, such that only the liquid filtered through the coarse filtration screen can be passing to said second filtration volume;
- an upper discharge unit comprising a coarse filtration drainage housing in fluid communication with the first filtration volume and a fine filtration drainage housing in fluid communication with the second filtration volume, said coarse and fine filtration drainage housings being equipped with corresponding discharge valves;
- and
- a cleaning means comprising a main collection arm extending through the first filtration volume and at least one lateral arm at least one end of which is connected to said main collection arm and extending through the second filtration volume in between the filtration screens, whereby the fluid communication between said second volume and the fine filtration drainage housing is provided by said at least one lateral arm.
1 more element
A method for gradually screening coarse and fine particles suspended in a flowing liquid, comprising the steps:
- providing a filtration assembly comprising filter body and an upper discharge unit, said filter body comprising a cylindrical fine filtration screen and a cylindrical coarse filtration screen having a first filtration volume and being concentrically placed into an inner volume of said fine filtration screen to form a second filtration volume therebetween, said upper discharge unit comprising a coarse filtration drainage housing in fluid communication with the first filtration volume and a fine filtration drainage housing in fluid communication with the second filtration volume, said coarse and fine filtration drainage housings being equipped with corresponding discharge valves;
- providing a cleaning means comprising a main collection arm extending through the first volume and at least one lateral arm at least one end of which is connected to said main collection arm and extending through the second filtration volume in between the coarse filtration screen and the fine filtration screen;
- supplying a liquid at a pressure higher than atmospheric pressure to the first filtration volume and filtering the coarse particles through the coarse filtration screen in a first filtration mode;
- filtering the initially filtered liquid from the first filtration mode by passing the initially filtered liquid to the second volume through the fine filtration screen in a second filtration mode such that the filtered liquid from the second filtration mode is ready to be discharged through an outlet;
- rotating the cleaning means for cleaning up inner surfaces of the screens;
- opening the discharge valve of the coarse filtration drainage housing and discharging the coarse particles through the coarse filtration drainage housing;
- opening the discharge valve of the fine filtration drainage housing and sucking the fine particles by means of the lateral arm;
- and
- discharging the fine particles through the fine filtration drainage housing.
6 more elements
Dependencies are inferred from the claim text.