GB1023553A - Improvements in leaf filters - Google Patents

Improvements in leaf filters

Info

Publication number
GB1023553A
GB1023553A GB44903/62A GB4490362A GB1023553A GB 1023553 A GB1023553 A GB 1023553A GB 44903/62 A GB44903/62 A GB 44903/62A GB 4490362 A GB4490362 A GB 4490362A GB 1023553 A GB1023553 A GB 1023553A
Authority
GB
United Kingdom
Prior art keywords
leaf
cake
enclosure
scraper
hollow shaft
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
GB44903/62A
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.)
Ametek Inc
Original Assignee
Ametek 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
Application filed by Ametek Inc filed Critical Ametek Inc
Publication of GB1023553A publication Critical patent/GB1023553A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01D29/39—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 hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
    • B01D29/41—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 hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type mounted transversely on the tube
    • 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
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
    • B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Abstract

1,023,553. Leaf filters. AMETEK Inc. Nov. 27, 1962 [Nov. 27, 1961], No. 44903/62. Heading BID. A leaf filter comprises an enclosure 10, rotatable leaf means 14 within the enclosure, rotated by motor 29, rotatable cake removal means (scraper 41, arm 39) and means for moving the cake removal means (shaft 32, motor 37) across a face of the leaf means so as to remove cake therefrom as the leaf means is rotated. Washing or sluicing of the cake may be effected simultaneously with the action of the scraper if desired by supplying liquid through hollow shaft 32 and apertures 40, or, if desired, the scraper 41 may be detached and the rotatable arm 39 used solely for washing and sluicing. As shown, the leaf means are mounted on the hollow shaft 13 journalled in bearing 15 in the removable cover 11 of enclosure 10 and are moved into and out of the enclosure by means of rollers running on tracks 28, 48. Cake removal means 41, 39 are mounted on hollow shaft 32 also journalled in the cover, the ends of shafts 13 and 32 remote from the cover being removably received in bearings indicated generally at 16. Entry of hollow shaft 13 into bearing 16 is facilitated by a tapered portion 25, Fig. 3 (not shown). Slurry is supplied to the enclosure and filtrate withdrawn via apertures 22, Fig. 5 (not shown) in hollow shaft 13. To remove the cake, motor 29 is started, causing the leaves to rotate. Cake removal shaft motor 37 is then started, causing shaft 32 to rotate clockwise, moving arms 39 from the retracted position of Fig. 2 to the substantially horizontal position shown by the dotted lines. Sluicing, or scraping, or both, is effected as previously described. Cake falls into trough 49 and is conveyed by conveyer 51 having helices 52 and 53, Fig. 3 (not shown) arranged in opposite directions to the central cake discharge aperture 17A. The scraper, Fig. 4 (not shown), has blades 43, 44, to which a plastic strip 65 e.g. of polytetrafluoroethylene, may be attached if desired (Fig. 11, not shown), permitting close contact between the scraper blade and the leaf face. A filter leaf, Fig. 8 (not shown), comprises course wire screens 18 enclosed by fine wire screens 19 engaging opposite sides of ring 71, and held in place by a pair of mating clamping rings 62, 63 fastened by bolts 64.
GB44903/62A 1961-11-27 1962-11-27 Improvements in leaf filters Expired GB1023553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15504161A 1961-11-27 1961-11-27

Publications (1)

Publication Number Publication Date
GB1023553A true GB1023553A (en) 1966-03-23

Family

ID=22553897

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44903/62A Expired GB1023553A (en) 1961-11-27 1962-11-27 Improvements in leaf filters

Country Status (1)

Country Link
GB (1) GB1023553A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2315230A (en) * 1996-07-13 1998-01-28 British Coal Corp Pressure leaf filters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2315230A (en) * 1996-07-13 1998-01-28 British Coal Corp Pressure leaf filters
GB2315230B (en) * 1996-07-13 2000-01-12 British Coal Corp Improvements in or relating to pressure leaf filters

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