ES481279A1 - Improvements in washable filters to countercurrent. (Machine-translation by Google Translate, not legally binding) - Google Patents
Improvements in washable filters to countercurrent. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES481279A1 ES481279A1 ES481279A ES481279A ES481279A1 ES 481279 A1 ES481279 A1 ES 481279A1 ES 481279 A ES481279 A ES 481279A ES 481279 A ES481279 A ES 481279A ES 481279 A1 ES481279 A1 ES 481279A1
- Authority
- ES
- Spain
- Prior art keywords
- peripheral zone
- countercurrent
- translation
- machine
- legally binding
- 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.)
- Expired
Links
- 230000002093 peripheral effect Effects 0.000 abstract 4
- 238000011010 flushing procedure Methods 0.000 abstract 2
- 230000035508 accumulation Effects 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
- B01D24/12—Downward filtration, the filtering material being supported by pervious surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4626—Construction of spray heads specially adapted for regeneration of the filter material or for filtrate discharging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
In a back-flushable filter, a granular filter material is heaped on a nozzle tray (11). During the filtration of contaminated liquids, accumulations of dirt which cannot be flushed out at normal back-flushing rates occur in the peripheral zone (16) means are therefore provided in the peripheral zone to increase the flow cross-section. This increases the amount of flushing water in the peripheral zone, as a result of which a higher local flow rate is achieved. The means are an increase in the number of nozzles (15) per unit area and/or in the flow cross-section of the individual nozzles in the peripheral zone.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH764978A CH633971A5 (en) | 1978-07-14 | 1978-07-14 | Back-flushable filter |
Publications (1)
Publication Number | Publication Date |
---|---|
ES481279A1 true ES481279A1 (en) | 1980-02-01 |
Family
ID=4328419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES481279A Expired ES481279A1 (en) | 1978-07-14 | 1979-06-05 | Improvements in washable filters to countercurrent. (Machine-translation by Google Translate, not legally binding) |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH633971A5 (en) |
ES (1) | ES481279A1 (en) |
FR (1) | FR2430782A1 (en) |
IT (1) | IT1122060B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2485385A1 (en) * | 1980-06-27 | 1981-12-31 | Degremont | BED FILTER OF GRANULAR MATERIALS FOR THE TREATMENT OF WATER, ESPECIALLY SEA WATER AND CORROSIVE LIQUIDS |
ITMI20062045A1 (en) * | 2006-10-24 | 2008-04-25 | Danieli Off Mecc | SAND FILTRATION DEVICE |
EP2154114A1 (en) * | 2008-07-23 | 2010-02-17 | Nestec S.A. | Water treatment unit for beverage production machine |
CN105854367B (en) * | 2016-05-13 | 2019-08-30 | 上海绩优机电股份有限公司 | A kind of filtration system and filter method |
-
1978
- 1978-07-14 CH CH764978A patent/CH633971A5/en not_active IP Right Cessation
-
1979
- 1979-06-05 ES ES481279A patent/ES481279A1/en not_active Expired
- 1979-06-13 FR FR7915137A patent/FR2430782A1/en active Granted
- 1979-07-09 IT IT24180/79A patent/IT1122060B/en active
Also Published As
Publication number | Publication date |
---|---|
IT1122060B (en) | 1986-04-23 |
FR2430782A1 (en) | 1980-02-08 |
IT7924180A0 (en) | 1979-07-09 |
CH633971A5 (en) | 1983-01-14 |
FR2430782B3 (en) | 1982-05-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19970401 |