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GB1401772A - Filters - Google Patents

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Info

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
Application number
GB5352671A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Simonacco Ltd
Original Assignee
Simonacco Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Simonacco Ltd filed Critical Simonacco Ltd
Priority to GB5352671A priority Critical patent/GB1401772A/en
Priority to AU48114/72A priority patent/AU4811472A/en
Priority to ZA727657A priority patent/ZA727657B/en
Priority to JP47116124A priority patent/JPS4863364A/ja
Priority to DE2257357A priority patent/DE2257357A1/en
Publication of GB1401772A publication Critical patent/GB1401772A/en
Expired legal-status Critical Current

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.
GB5352671A 1971-11-18 1971-11-18 Filters Expired GB1401772A (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
ZA727657B (en) 1974-06-26
DE2257357A1 (en) 1973-05-24
AU4811472A (en) 1974-04-26
JPS4863364A (en) 1973-09-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee