GB1335196A - Scraping device - Google Patents

Scraping device

Info

Publication number
GB1335196A
GB1335196A GB5711570A GB1335196DA GB1335196A GB 1335196 A GB1335196 A GB 1335196A GB 5711570 A GB5711570 A GB 5711570A GB 1335196D A GB1335196D A GB 1335196DA GB 1335196 A GB1335196 A GB 1335196A
Authority
GB
United Kingdom
Prior art keywords
drum
carriages
blade
block
advanced
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
GB5711570A
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.)
Ishigaki Mechanical Industry Co Ltd
Original Assignee
Ishigaki Mechanical Industry Co 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 Ishigaki Mechanical Industry Co Ltd filed Critical Ishigaki Mechanical Industry Co Ltd
Publication of GB1335196A publication Critical patent/GB1335196A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
    • 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
    • B01D33/44—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
    • B01D33/801—Driving means, shaft packing systems or the like
    • 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

Abstract

1335196 Rotary drum vacuum filter ISHIGAKI KIKO KK 1 Dec 1970 57115/70 Heading B1D An inward flow rotary drum vacuum filter intended to operate with a coating of diatomaceous earth filter aid on the drum periphery (Fig. 1, not shown) has a scraper blade 15 so mounted that as it advances towards the drum, so as to continuously pare off the surface layer of filter aid and cake, it is also reciprocated parallel to the drum axis, which leaves a smoother surface on the coating 14 than would mere radial advance. The blade 15 is supported by a pair of carriages 20, each mounted for axial sliding by a dovetail 20a in a block 18, which is similarly mounted for radial sliding on fixed frame 16. The two blocks 18 are advanced and retracted relative to the drum by respective screws 22, rotated by a common drive shaft 26 which is selectively connected through clutches to a low speed advancing drive at one end or a high speed retracting drive at the other (Fig. 2, not shown). One screw 22 supports an ecentrically bored cylinder 32, which slides axially thereon with corresponding block 18 and is keyed to rotate therewith. A ring 36a encircling cylinder 32 is connected to carriages 20 by rod 36 (Fig. 3 not shown) to reciprocate the carriages and blade axially when the block 18 is advanced or retracted.
GB5711570A 1970-12-01 1970-12-01 Scraping device Expired GB1335196A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5711570 1970-12-01

Publications (1)

Publication Number Publication Date
GB1335196A true GB1335196A (en) 1973-10-24

Family

ID=10478401

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5711570A Expired GB1335196A (en) 1970-12-01 1970-12-01 Scraping device

Country Status (1)

Country Link
GB (1) GB1335196A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123708A (en) * 1982-07-07 1984-02-08 Ingvar Lundin Rotary vacuum filter
EP0302184A1 (en) * 1987-08-07 1989-02-08 FRIULMECCANICA SpA Rotary vacuum filter
US5055205A (en) * 1989-05-24 1991-10-08 Alar Engineering Corporation Pressurized continuous operating rotary drum filter and method
US5133863A (en) * 1988-11-19 1992-07-28 Bayer Aktiengesellschaft Stripping device for rotary filters
USRE36297E (en) * 1989-07-06 1999-09-14 A. Ahlstrom Corporation Method and apparatus for treating a fiber suspension

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123708A (en) * 1982-07-07 1984-02-08 Ingvar Lundin Rotary vacuum filter
EP0302184A1 (en) * 1987-08-07 1989-02-08 FRIULMECCANICA SpA Rotary vacuum filter
US5133863A (en) * 1988-11-19 1992-07-28 Bayer Aktiengesellschaft Stripping device for rotary filters
US5055205A (en) * 1989-05-24 1991-10-08 Alar Engineering Corporation Pressurized continuous operating rotary drum filter and method
USRE36297E (en) * 1989-07-06 1999-09-14 A. Ahlstrom Corporation Method and apparatus for treating a fiber suspension

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Legal Events

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