BE434933A - - Google Patents
Info
- Publication number
- BE434933A BE434933A BE434933DA BE434933A BE 434933 A BE434933 A BE 434933A BE 434933D A BE434933D A BE 434933DA BE 434933 A BE434933 A BE 434933A
- Authority
- BE
- Belgium
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
- B01D24/02—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
- B01D24/20—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 provided in an open container
- B01D24/22—Downward filtration, the filter material being supported by pervious surfaces
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- 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
- B01D24/4636—Counter-current flushing, e.g. by air with backwash shoes; with nozzles
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/06—Filters making use of electricity or magnetism
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US152771A US2204534A (en) | 1937-07-09 | 1937-07-09 | Seal for sand filter cleaning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE434933A true BE434933A (xx) |
Family
ID=22544367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE434933D BE434933A (xx) | 1937-07-09 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2204534A (xx) |
| BE (1) | BE434933A (xx) |
| FR (1) | FR840523A (xx) |
| NL (1) | NL54640C (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2403438B (en) * | 2003-03-06 | 2005-07-27 | Three Star Enviromental Ltd | Screening apparatus |
-
0
- BE BE434933D patent/BE434933A/xx unknown
- NL NL54640D patent/NL54640C/xx active
-
1937
- 1937-07-09 US US152771A patent/US2204534A/en not_active Expired - Lifetime
-
1938
- 1938-07-09 FR FR840523D patent/FR840523A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR840523A (fr) | 1939-04-27 |
| US2204534A (en) | 1940-06-11 |
| NL54640C (xx) |