GB639678A - Improvements in cleanout systems for filters - Google Patents
Improvements in cleanout systems for filtersInfo
- Publication number
- GB639678A GB639678A GB25758/47A GB2575847A GB639678A GB 639678 A GB639678 A GB 639678A GB 25758/47 A GB25758/47 A GB 25758/47A GB 2575847 A GB2575847 A GB 2575847A GB 639678 A GB639678 A GB 639678A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dirt
- valve
- tank
- solvent
- pipe
- 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
- 239000002904 solvent Substances 0.000 abstract 5
- 238000005108 dry cleaning Methods 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000011001 backwashing Methods 0.000 abstract 1
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
Classifications
-
- 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
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
- B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Extraction Or Liquid Replacement (AREA)
- Centrifugal Separators (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
<PICT:0639678/IV (c)/1> A "wet clean-out" system for tanks housing filter elements used for filtration of dry-cleaning solvent prior to recovery or re-circulation in dry-cleaning plants comprises a jet positioned within and adjacent to the bottom of, the filter tank, for introducing a flushing liquid to agitate accumulated dirt, and outlet adjacent the jet for withdrawing suspended dirt, and a valve in the outlet, the valve incorporating a "pusher plate" which covers the outlet opening when the valve is closed, and causes accumulated dirt to be removed from the outlet opening when the valve is opened (see Groups I and XVII). A tank 10 housing filter elements 11 from which filtered solvent is withdrawn through a manifold 12 is periodically cut out of the dry-cleaning system when sufficient dirt has accumulated on the bottom of the tank after repeated back-washing of the elements 11. Solvent is first drained to the level of a pipe 13, and that remaining in the tank is circulated through pipes 15, 16, 17, 19, 20 and 22 by a pump 14, also cut out of the dry-cleaning system by closing of the valves 25 and 27. From pipe 22 solvent is forced into the bottom of the tank 10 through a slot 24a in an elbow 24 to set up a cyclic circulation for re-suspending the dirt, and through a hole 28a in a plug 28 for removing accumulated dirt from the vicinity of a valve 29. After a time the circulation is discontinued, and valve 29 is opened by screwing in a threaded rod 31. The valve disc 32 at the other end constitutes a "pusher-plate" for removing any remaining unsuspended dirt from the opening, and the suspension is pumped via pipes 30, 35, 36, 17, 19, 37 to a centrifugal extractor 34 incorporating a strainer bag via pipe 38, or to a body of water contained in the lower tapered portion of a settling tank 41 via pipe 47. In the latter case the mixture is allowed to stand for at least four hours, after which solvent is withdrawn through pipes 46 and a dirt-and-water mixture through pipe 49. A settling tank such as 41 may be provided in addition to a centrifugal extractor such as 34.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25758/47A GB639678A (en) | 1947-09-22 | 1947-09-22 | Improvements in cleanout systems for filters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25758/47A GB639678A (en) | 1947-09-22 | 1947-09-22 | Improvements in cleanout systems for filters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB639678A true GB639678A (en) | 1950-07-05 |
Family
ID=10232824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25758/47A Expired GB639678A (en) | 1947-09-22 | 1947-09-22 | Improvements in cleanout systems for filters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB639678A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2025225A1 (en) * | 2007-08-15 | 2009-02-18 | Tetra Holding (US), Inc. | Aquarium filter housing with rounded bottom |
| CN105396351A (en) * | 2015-12-16 | 2016-03-16 | 张春辉 | Bionic gravity-type high-efficiency environment-friendly sludge drying device, and implementation method thereof |
| CN114887988A (en) * | 2022-04-14 | 2022-08-12 | 安徽百世佳包装有限公司 | Multistage ultrasonic water washing system of bottle lid |
-
1947
- 1947-09-22 GB GB25758/47A patent/GB639678A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2025225A1 (en) * | 2007-08-15 | 2009-02-18 | Tetra Holding (US), Inc. | Aquarium filter housing with rounded bottom |
| US7638044B2 (en) | 2007-08-15 | 2009-12-29 | Tetra Holding (Us), Inc. | Aquarium filter housing with rounded bottom |
| CN105396351A (en) * | 2015-12-16 | 2016-03-16 | 张春辉 | Bionic gravity-type high-efficiency environment-friendly sludge drying device, and implementation method thereof |
| CN114887988A (en) * | 2022-04-14 | 2022-08-12 | 安徽百世佳包装有限公司 | Multistage ultrasonic water washing system of bottle lid |
| CN114887988B (en) * | 2022-04-14 | 2024-04-26 | 安徽百世佳包装有限公司 | Multistage ultrasonic water washing system for bottle caps |
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