IE39820B1 - Improvements in or relating to filters - Google Patents
Improvements in or relating to filtersInfo
- Publication number
- IE39820B1 IE39820B1 IE1760/74A IE176074A IE39820B1 IE 39820 B1 IE39820 B1 IE 39820B1 IE 1760/74 A IE1760/74 A IE 1760/74A IE 176074 A IE176074 A IE 176074A IE 39820 B1 IE39820 B1 IE 39820B1
- Authority
- IE
- Ireland
- Prior art keywords
- bed
- medium
- baffle
- liquid
- grains
- Prior art date
Links
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
- B01D24/28—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed moving during the filtration
- B01D24/30—Translation
-
- 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
-
- 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
- B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element
- B01D24/4689—Displacement of the filtering material to a compartment of the filtering device for regeneration
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
1443353 Moving bed filter SIMON-HARTLEY Ltd 11 July 1974 [25 Aug 1973] 40368/73 Heading BID Granular filter medium such as sand is fed into the filtering zone past a baffle edge 14 so as to form a free inclined upper surface 26 into which liquid, such as sewage effluent, to be filtered flows from inlet 27. If the sand includes grains of various sizes, the baffle edge 14 causes coarse grains to form an upper layer adjacent surface 26 with the finer grains forming the intermediate part of the bed. A baffle 36 may be provided to create a similar coarse layer adjacent to nitrate outlet 29, 30; otherwise the left-hand side of the bed will remain unclassified. Medium may be discarded after leaving the lower end of the bed, but as shown an air lift pump 32 recycles medium up pipe 31 to chamber 19 where it is washed by a fraction of the incoming unfiltered liquid diverted through valve 34 and discharging at 35. Alternatively the medium may be washed with filtrate. The bed movement may be continuous or intermittent. It is possible to backwash the bed by delivering liquid to outlet 30 or to the bottom of the bed. In Fig. 1 the bed has a rectangular horizontal section, but in Fig. 2, not shown, an annular bed is formed with an inverted conical inlet surface 26 by a conical baffle (38) into whose interior the unfiltered liquid is delivered. Several air lift pumps are circumferentially spaced.
[GB1443353A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4036873A GB1443353A (en) | 1973-08-25 | 1973-08-25 | Filters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE39820L IE39820L (en) | 1975-02-25 |
| IE39820B1 true IE39820B1 (en) | 1979-01-03 |
Family
ID=10414529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1760/74A IE39820B1 (en) | 1973-08-25 | 1974-08-23 | Improvements in or relating to filters |
Country Status (22)
| Country | Link |
|---|---|
| JP (1) | JPS5342146B2 (en) |
| AR (1) | AR205253A1 (en) |
| AT (1) | AT342082B (en) |
| BE (1) | BE818836A (en) |
| BR (1) | BR7406881A (en) |
| CA (1) | CA1016872A (en) |
| CH (1) | CH587674A5 (en) |
| DE (1) | DE2434968C3 (en) |
| DK (1) | DK146436C (en) |
| FI (1) | FI58442C (en) |
| FR (1) | FR2241327B1 (en) |
| GB (1) | GB1443353A (en) |
| HK (1) | HK6577A (en) |
| IE (1) | IE39820B1 (en) |
| IN (1) | IN142050B (en) |
| IT (1) | IT1020138B (en) |
| LU (1) | LU70777A1 (en) |
| MY (1) | MY7700154A (en) |
| NL (1) | NL156323B (en) |
| NO (1) | NO139991C (en) |
| SE (1) | SE409819B (en) |
| ZA (1) | ZA744565B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE396552B (en) * | 1976-03-03 | 1977-09-26 | Nordstjernan Rederi Ab | PROCEDURE FOR FILTERING A SUSPENSION OR EMULSION AND FILTERING APPARATUS FOR PERFORMING THE PROCEDURE |
| DE2618480C3 (en) * | 1976-04-27 | 1981-07-16 | Alkem Gmbh, 6450 Hanau | Device for removing a filling of solid particles in a container |
| SE429128B (en) * | 1976-11-29 | 1983-08-15 | Nordstjernan Rederi Ab | PROCEDURE FOR SEPARATING POLLUTANTS IN WATER SUSPENSIONS OR EMULSIONS |
| DE2757209C2 (en) * | 1977-12-22 | 1986-11-27 | Perc S.r.l., Settimo Torinese | Method and device for the continuous filtration of liquids |
| JPS5554010A (en) * | 1978-10-18 | 1980-04-21 | Hitachi Chem Co Ltd | Filtering apparatus |
| DE3308287A1 (en) * | 1983-03-09 | 1984-09-13 | Bergwerksverband Gmbh, 4300 Essen | METHOD AND DEVICE FOR FILTERING SOLID-LOADED LIQUIDS |
| DE19632447C2 (en) * | 1996-08-12 | 2000-06-15 | Wabe Wasseraufbereitung Gmbh | Elimination device |
| JP2003053110A (en) * | 2001-08-20 | 2003-02-25 | Suido Kiko Kaisha Ltd | Lateral flow moving bed type filtration apparatus |
| CN107694178B (en) * | 2017-11-16 | 2023-10-13 | 攀钢集团矿业有限公司 | Slag separating and discharging device |
| CN113457240A (en) * | 2021-05-28 | 2021-10-01 | 陕西四季春清洁热源股份有限公司 | Filter equipment is washd and conveniently dismantled to middle and deep geothermal system self-cleaning |
-
1973
- 1973-08-25 GB GB4036873A patent/GB1443353A/en not_active Expired
-
1974
- 1974-01-01 AR AR255256A patent/AR205253A1/en active
- 1974-07-17 ZA ZA00744565A patent/ZA744565B/en unknown
- 1974-07-17 CA CA205,100A patent/CA1016872A/en not_active Expired
- 1974-07-18 IN IN1603/CAL/1974A patent/IN142050B/en unknown
- 1974-07-19 DE DE2434968A patent/DE2434968C3/en not_active Expired
- 1974-08-02 NO NO742805A patent/NO139991C/en unknown
- 1974-08-06 FI FI2345/74A patent/FI58442C/en active
- 1974-08-06 NL NL7410538.A patent/NL156323B/en not_active IP Right Cessation
- 1974-08-09 CH CH1095174A patent/CH587674A5/xx not_active IP Right Cessation
- 1974-08-09 AT AT655974A patent/AT342082B/en not_active IP Right Cessation
- 1974-08-09 SE SE7410240A patent/SE409819B/en not_active IP Right Cessation
- 1974-08-13 FR FR7428013A patent/FR2241327B1/fr not_active Expired
- 1974-08-14 BE BE147591A patent/BE818836A/en not_active IP Right Cessation
- 1974-08-20 BR BR6881/74A patent/BR7406881A/en unknown
- 1974-08-21 LU LU70777A patent/LU70777A1/xx unknown
- 1974-08-23 IT IT26538/74A patent/IT1020138B/en active
- 1974-08-23 DK DK452474A patent/DK146436C/en not_active IP Right Cessation
- 1974-08-23 IE IE1760/74A patent/IE39820B1/en unknown
- 1974-08-24 JP JP9746874A patent/JPS5342146B2/ja not_active Expired
-
1977
- 1977-01-27 HK HK65/77A patent/HK6577A/en unknown
- 1977-12-31 MY MY1977154A patent/MY7700154A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT1020138B (en) | 1977-12-20 |
| SE7410240L (en) | 1975-02-26 |
| JPS5050761A (en) | 1975-05-07 |
| DK146436B (en) | 1983-10-10 |
| HK6577A (en) | 1977-02-04 |
| FR2241327A1 (en) | 1975-03-21 |
| SE409819B (en) | 1979-09-10 |
| FR2241327B1 (en) | 1979-03-09 |
| NO139991B (en) | 1979-03-12 |
| FI58442C (en) | 1981-02-10 |
| ATA655974A (en) | 1977-07-15 |
| ZA744565B (en) | 1976-02-25 |
| GB1443353A (en) | 1976-07-21 |
| DE2434968A1 (en) | 1975-03-13 |
| DK146436C (en) | 1984-03-19 |
| LU70777A1 (en) | 1975-01-02 |
| DE2434968B2 (en) | 1978-03-02 |
| NL7410538A (en) | 1975-02-27 |
| IE39820L (en) | 1975-02-25 |
| NO139991C (en) | 1979-06-20 |
| DE2434968C3 (en) | 1978-11-02 |
| CA1016872A (en) | 1977-09-06 |
| BR7406881A (en) | 1975-11-04 |
| NL156323B (en) | 1978-04-17 |
| JPS5342146B2 (en) | 1978-11-09 |
| NO742805L (en) | 1975-03-24 |
| AR205253A1 (en) | 1976-04-21 |
| DK452474A (en) | 1975-04-28 |
| MY7700154A (en) | 1977-12-31 |
| BE818836A (en) | 1974-12-02 |
| FI58442B (en) | 1980-10-31 |
| FI234574A (en) | 1975-02-26 |
| CH587674A5 (en) | 1977-05-13 |
| AT342082B (en) | 1978-03-10 |
| IN142050B (en) | 1977-05-21 |
| AU7255474A (en) | 1976-02-26 |
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