GB1401772A - Filters - Google Patents
FiltersInfo
- Publication number
- GB1401772A GB1401772A GB5352671A GB5352671A GB1401772A GB 1401772 A GB1401772 A GB 1401772A GB 5352671 A GB5352671 A GB 5352671A GB 5352671 A GB5352671 A GB 5352671A GB 1401772 A GB1401772 A GB 1401772A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sector
- filter
- segment
- filter cake
- bath
- 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
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
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
- B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
-
- 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
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
-
- 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
- B01D33/80—Accessories
- B01D33/82—Means for pressure distribution
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
1401772 Continuous rotary filter SIMONACCO Ltd 18 Oct 1972 [18 Nov 1971] 53526/ 71 Heading B1D In a method of filtering a slurry using a rotary filter of the disc or drum type having a number of sectors or segments, each sector or segment passes successively through a pickup zone wherein a vacuum is applied to draw liquid from a bath containing the slurry into the sector or segment such that a filter cake is built up on the surface of the sector or segment and the sector or segment is substantially filled with liquid, a discharge zone wherein the interior of the sector or segment is pressurised to remove a portion of the liquid through the surface and thus remove the filter cake, and a further zone wherein the remaining liquid in the sector or segment is drained therefrom e.g. by suction: In the embodiment shewn a rotary disc filter ismounted in a bath 17. Each disc filter 10 comprises segments 12 in communication with ducts 15 extending lengthwise of the rotary shaft 11. At one end of the shaft 11 is a stationary member 19 having ports 20, 22, 21, ports 20 and 21 being connected with vacuum means (not shown) and port 22 with compressed gas or pressurised water source (not shown). As the drum rotates the ducts coincide with ports 20, 22, 21. Chutes 18 positioned between discs 10 receive removed filter cake. Some of the chutes may be provided with pivotable flaps for deflecting removed filtered cake back in to bath 17. The removed filter cake may be discharged to a conveyor. A piston may be mounted in each sector, the piston being operated to apply pressure to remove the filter cakes from the sector. Water may be sprayed onto the outer surfaces of the discs to aid removal of the filter cake. In a rotary drum filter a chute receiving removed filter cake may be provided with gaps to return filter cake to the bath. The chute may be adjustable along the length of the bath.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5352671A GB1401772A (en) | 1971-11-18 | 1971-11-18 | Filters |
AU48114/72A AU4811472A (en) | 1971-11-18 | 1972-10-25 | Improvements in or relating to filters |
ZA727657A ZA727657B (en) | 1971-11-18 | 1972-10-27 | Improvements in or relating to filters |
JP47116124A JPS4863364A (en) | 1971-11-18 | 1972-11-17 | |
DE2257357A DE2257357A1 (en) | 1971-11-18 | 1972-11-20 | PROCESS AND DEVICE FOR CONTINUOUS OPERATION OF A ROTATABLE FILTER, PARTIALLY IMMERSED IN A TREATMENT SLUDGE BATH, OF ONE OR MORE DISCS OR OF A DRUM |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5352671A GB1401772A (en) | 1971-11-18 | 1971-11-18 | Filters |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1401772A true GB1401772A (en) | 1975-07-30 |
Family
ID=10468123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5352671A Expired GB1401772A (en) | 1971-11-18 | 1971-11-18 | Filters |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS4863364A (en) |
AU (1) | AU4811472A (en) |
DE (1) | DE2257357A1 (en) |
GB (1) | GB1401772A (en) |
ZA (1) | ZA727657B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE451948B (en) * | 1985-05-02 | 1987-11-09 | Hedemora Ab | FILTER FOR CONTINUOUS FILTERING UNDER PRESSURE OF A SUSPENSION |
DE3926962A1 (en) * | 1989-08-16 | 1991-02-21 | Mecapec Sa | DEVICE FOR MECHANICAL CLEANING OF BIOLOGICALLY TREATED WASTE WATER |
CN112403088B (en) * | 2020-12-17 | 2022-04-29 | 辽宁五寰特种材料与智能装备产业技术研究院有限公司 | Double-vacuum disc type filter |
-
1971
- 1971-11-18 GB GB5352671A patent/GB1401772A/en not_active Expired
-
1972
- 1972-10-25 AU AU48114/72A patent/AU4811472A/en not_active Expired
- 1972-10-27 ZA ZA727657A patent/ZA727657B/en unknown
- 1972-11-17 JP JP47116124A patent/JPS4863364A/ja active Pending
- 1972-11-20 DE DE2257357A patent/DE2257357A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
ZA727657B (en) | 1974-06-26 |
AU4811472A (en) | 1974-04-26 |
JPS4863364A (en) | 1973-09-03 |
DE2257357A1 (en) | 1973-05-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |