CA2247187A1 - Separation method and apparatus - Google Patents
Separation method and apparatusInfo
- Publication number
- CA2247187A1 CA2247187A1 CA002247187A CA2247187A CA2247187A1 CA 2247187 A1 CA2247187 A1 CA 2247187A1 CA 002247187 A CA002247187 A CA 002247187A CA 2247187 A CA2247187 A CA 2247187A CA 2247187 A1 CA2247187 A1 CA 2247187A1
- Authority
- CA
- Canada
- Prior art keywords
- rotor
- filter
- liquid medium
- plane
- discharging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000926 separation method Methods 0.000 title abstract 3
- 239000007788 liquid Substances 0.000 abstract 3
- 239000000470 constituent Substances 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 2
- 230000008021 deposition Effects 0.000 abstract 1
- 230000005684 electric field Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000012466 permeate Substances 0.000 abstract 1
- 238000002604 ultrasonography Methods 0.000 abstract 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention concerns a method and a device for separation of separable constituents from a liquid medium. The separation device comprises only one cell or a stack of a plurality of adjacent cells, whereby each cell consists of a plate unit containing a filter (13), an inlet (l6) for supplying the liquid medium into a chamber (10), an outlet (18) for discharging the reject and an outlet (17) for discharging the permeate. The liquid medium is subjected to a strong turbulence created by a conveniently designed rotor, possibly combined with sound waves, preferably ultrasound, and/or an electric field, whereby the deposition of separable constituents on the filter is prevented or essentially reduced. According to the invention a rotor is used in which the essentially plane surface of the rotor wings directed towards the filter comprises one or more areas (20) deviating from the plane of said surface; or the surface (19) of the rotor wings directed towards the filter is curved in such a way that the distance between the surface of the wing and the filter is small at the inner portion of the rotor and that said distance gradually increases towards the periphery of the rotor, or the section of the rotor wings in a plane parallel with the filter forms an almost S-shaped surface, whereby the S-shape is continuous.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI960993 | 1996-03-04 | ||
| FI960993A FI106298B (en) | 1996-03-04 | 1996-03-04 | Separation method and device |
| PCT/FI1997/000129 WO1997032652A1 (en) | 1996-03-04 | 1997-02-26 | Separation method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2247187A1 true CA2247187A1 (en) | 1997-09-12 |
| CA2247187C CA2247187C (en) | 2005-10-04 |
Family
ID=35395936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002247187A Expired - Fee Related CA2247187C (en) | 1996-03-04 | 1997-02-26 | Separation method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2247187C (en) |
-
1997
- 1997-02-26 CA CA002247187A patent/CA2247187C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2247187C (en) | 2005-10-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20140226 |