GB1168540A - Filtration Apparatus - Google Patents
Filtration ApparatusInfo
- Publication number
- GB1168540A GB1168540A GB25336/67A GB2533667A GB1168540A GB 1168540 A GB1168540 A GB 1168540A GB 25336/67 A GB25336/67 A GB 25336/67A GB 2533667 A GB2533667 A GB 2533667A GB 1168540 A GB1168540 A GB 1168540A
- Authority
- GB
- United Kingdom
- Prior art keywords
- medium
- segments
- drum
- segment
- filter
- 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
- 238000001914 filtration Methods 0.000 title abstract 2
- -1 polyethylene Polymers 0.000 abstract 2
- 229920001875 Ebonite Polymers 0.000 abstract 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 abstract 1
- 239000004677 Nylon Substances 0.000 abstract 1
- 239000004952 Polyamide Substances 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- 239000012065 filter cake Substances 0.000 abstract 1
- 239000010419 fine particle Substances 0.000 abstract 1
- 229920001778 nylon Polymers 0.000 abstract 1
- 229920002647 polyamide Polymers 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/067—Construction of the filtering drums, e.g. mounting or sealing arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
- B01D33/09—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration with surface cells independently connected to pressure distributors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/52—Regenerating the filter material in the filter by forces created by movement of the filter element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/60—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for washing
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
1,168,540. Rotary filter. BRITISH TITAN PRODUCTS CO. Ltd. 1 May, 1968 [1 June, 1967], No. 25336/67. Heading B1D. An inward flow, rotary drum filter comprises an outer surface consisting of a series of circumferentially spaced segments each presenting a concave outer surface, on to which the elastic filter medium is drawn over the filtering and cake-washing sectors of the drum A, B, the internal suction being released, and possibly compressed air being applied to the segment, at position C whereupon the filter cake is thrown from the medium, which springs away from the central area of the segment (Fig. 4, not shown). The medium may comprise rubber threads or may be woven polyamide or polyester or knitted fabric capable, of a 10% expansion under a pressure of 10 p.s.i. The segments comprise blocks of ebonite, nylon, polyethylene or polytetrafluoroethylene, with surface grooves and through passages communicating with pipes 10 leading to rotary valve (11) by which suction and pressure is applied. Each segment or set of axially abutting segment sections is located in a trough (2) of the drum surface. A layer of wire mesh may cover the segments under the filter medium. As the drum passes through bath 14 of slurry, the fine particles tend to clog the medium, but this results in increased pressure across the medium and the medium is thereby drawn tighter on to the segments, stretching and opening out the pores to counteract the clogging. The bath has an agitator 15. The drum may have 8 to 30 segments round its circumference.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25336/67A GB1168540A (en) | 1967-06-01 | 1967-06-01 | Filtration Apparatus |
| FR1568505D FR1568505A (en) | 1967-06-01 | 1968-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25336/67A GB1168540A (en) | 1967-06-01 | 1967-06-01 | Filtration Apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1168540A true GB1168540A (en) | 1969-10-29 |
Family
ID=10226028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25336/67A Expired GB1168540A (en) | 1967-06-01 | 1967-06-01 | Filtration Apparatus |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1568505A (en) |
| GB (1) | GB1168540A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2194467A1 (en) * | 1972-07-27 | 1974-03-01 | Envirotech Corp |
-
1967
- 1967-06-01 GB GB25336/67A patent/GB1168540A/en not_active Expired
-
1968
- 1968-05-29 FR FR1568505D patent/FR1568505A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2194467A1 (en) * | 1972-07-27 | 1974-03-01 | Envirotech Corp |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1568505A (en) | 1969-05-23 |
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