GB1033630A - Drum filter with plastic filter elements - Google Patents

Drum filter with plastic filter elements

Info

Publication number
GB1033630A
GB1033630A GB36079/64A GB3607964A GB1033630A GB 1033630 A GB1033630 A GB 1033630A GB 36079/64 A GB36079/64 A GB 36079/64A GB 3607964 A GB3607964 A GB 3607964A GB 1033630 A GB1033630 A GB 1033630A
Authority
GB
United Kingdom
Prior art keywords
drum
filter
filtrate
clock
extending
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
GB36079/64A
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.)
Improved Machinery Inc
Original Assignee
Improved Machinery Inc
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
Priority claimed from US308983A external-priority patent/US3306457A/en
Application filed by Improved Machinery Inc filed Critical Improved Machinery Inc
Publication of GB1033630A publication Critical patent/GB1033630A/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
    • B01D33/06—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
    • 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
    • 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
    • B01D33/35—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
    • B01D33/37—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in parallel connection
    • B01D33/39—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in parallel connection concentrically or coaxially
    • 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
    • B01D33/465—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element take-off rollers
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/282—Filtering elements with a horizontal rotation or symmetry axis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Sections of the outer surface of a horizontally-disposed rotary drum suction filter each consist of a portion of a cylinder (e.g. one twelfth, circumferentially), having on its convex surface a plurality of spaced parallel ridges defining grooves extending in the direction of the curve of the surface, and having openings through it providing communication between the grooves and its inner surface. Each section has a sheet filter medium covering its convex side and attached to the outside rim of the section along all four edges. Each element thus formed rests on three radially spaced axial ribs 24, 22, 26, Fig. 6 (not shown), secured to the drum surface proper, 12. The element is fastened to the drum by spaced screws 30, extending through that one of the axial rims which is leading in the direction of drum rotation, and p engaging threaded plates extending between rib 26 under that element and rib 24 under the adjacent element. The filtrate compartments formed by the axial ribs are interrupted at the centre of the length of the drum by a fixed annular valve element 16, Fig. 3 (not shown), which encircles the drum at this point. The drum interior is also interrupted by two transverse discs at the region within the valve element, these discs 34, 36, being connected by axially extending tie members, to form a passageway 38 for radially inward flow of filtrate. Disc 34 has a central opening connected by a pipe 18 with an opening in one end wall 31 of the drum. The pipe 18 extends through end wall 31 and through an opening in a fixed framework 13 in which it is rotatably mounted, and connects with a stationary pipe elbow 20 to which vacuum is applied. The inner surface of the valve element 16 is closed from the "1 o'clock" position to the "4 o'clock" position to cut off the filtrate compartments at that region from vacuum and allow air-venting through the filter medium during cake-removal; elsewhere the inner surface has an elongated opening to provide communication with passageway 38. The openings 47 in the grooves of each filter element are at the "trailing" end of the element, so that as the element progressively inverts after the "12 o'clock" position, any trapped filtrate is caught between drum surface 12 and the under-surface of the element and cannot re-wet the filter medium.
GB36079/64A 1963-09-16 1964-09-03 Drum filter with plastic filter elements Expired GB1033630A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US30897663A 1963-09-16 1963-09-16
US308983A US3306457A (en) 1963-09-16 1963-09-16 Drum filter
US34127664A 1964-01-30 1964-01-30

Publications (1)

Publication Number Publication Date
GB1033630A true GB1033630A (en) 1966-06-22

Family

ID=27405351

Family Applications (2)

Application Number Title Priority Date Filing Date
GB36079/64A Expired GB1033630A (en) 1963-09-16 1964-09-03 Drum filter with plastic filter elements
GB36563/64A Expired GB1071143A (en) 1963-09-16 1964-09-07 Center valve filter

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB36563/64A Expired GB1071143A (en) 1963-09-16 1964-09-07 Center valve filter

Country Status (6)

Country Link
DE (1) DE1461396C3 (en)
FI (2) FI45255B (en)
FR (1) FR1447960A (en)
GB (2) GB1033630A (en)
NO (2) NO130784C (en)
SE (2) SE310840B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2410113C3 (en) * 1974-03-02 1982-03-04 Klöckner-Humboldt-Deutz AG, 5000 Köln Drum filter

Also Published As

Publication number Publication date
SE310598B (en) 1969-05-05
FI45256C (en) 1972-04-10
FR1447960A (en) 1966-08-05
NO130784C (en) 1975-02-12
DE1461397A1 (en) 1969-01-23
FI45255B (en) 1971-12-31
DE1461396B2 (en) 1974-03-28
SE310840B (en) 1969-05-12
NO136760C (en) 1977-11-02
GB1071143A (en) 1967-06-07
NO130784B (en) 1974-11-04
FI45256B (en) 1971-12-31
NO136760B (en) 1977-07-25
DE1461396A1 (en) 1968-12-05
DE1461396C3 (en) 1978-03-09

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