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GB1280602A - Removal of solid particles from suspension in a liquid - Google Patents

Removal of solid particles from suspension in a liquid

Info

Publication number
GB1280602A
GB1280602A GB4006/70A GB400670A GB1280602A GB 1280602 A GB1280602 A GB 1280602A GB 4006/70 A GB4006/70 A GB 4006/70A GB 400670 A GB400670 A GB 400670A GB 1280602 A GB1280602 A GB 1280602A
Authority
GB
United Kingdom
Prior art keywords
screen
compartment
liquid
jets
solids
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
GB4006/70A
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.)
FMC Corp
Original Assignee
FMC Corp
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 FMC Corp filed Critical FMC Corp
Publication of GB1280602A publication Critical patent/GB1280602A/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
    • B01D33/044—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are pervious for filtering
    • B01D33/048—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are pervious for filtering with endless filtering bands
    • 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
    • B01D33/463—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element nozzles
    • 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
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • 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
    • B01D33/52—Regenerating the filter material in the filter by forces created by movement of the filter element
    • B01D33/54—Regenerating the filter material in the filter by forces created by movement of the filter element involving vibrations
    • 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
    • B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
    • B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
    • B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
    • B01D33/646—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression by pressure rollers

Landscapes

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

Abstract

1280602 Travelling-band filters FMC CORP 27 Jan 1970 [28 Jan 1969] 4006/70 Heading B1D Solid particles are removed from a liquid, e.g. sewage effluent, by nitration through an endless screen 13 of filter material wrapped around rotatable perforated drum 22, the screen being moved (by a motor, not shown) through the liquid to be filtered in compartment 11 of tank 14; on leaving compartment 11 the solid deposit on the screen is pressed by roller 17 and the excess liquid on the other side of the screen is removed by jets of air from orifices in header 18. The screen next moves through compartment 12 where the solids are removed from it by ultrasonic transducer 45; residual solids are removed from the screen by air jets 29 impinging on both sides of the screen, and the cleaned screen then re-enters compartment 11. Filtered liquid is removed from the interior of drum 22; and the separated solids are withdrawn from compartment 12 through outlet 46. Instead of using air-jets, excess liquid may be removed from the screen by means of a squeegee, wick or sponge, a roller having a soft surface (e.g. of sponge), or a vacuum head. Alternative means for removing residual solids from the screen comprise a pair of rubber wipers, water-sprays, or two soft counter-rotating cylindrical brushes. The filter screen may be made of polyester cloth having 260 x 400 meshes/inch, the hole size being 20 microns, and the open area being 6% of the cloth surface.
GB4006/70A 1969-01-28 1970-01-27 Removal of solid particles from suspension in a liquid Expired GB1280602A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79451169A 1969-01-28 1969-01-28

Publications (1)

Publication Number Publication Date
GB1280602A true GB1280602A (en) 1972-07-05

Family

ID=25162846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4006/70A Expired GB1280602A (en) 1969-01-28 1970-01-27 Removal of solid particles from suspension in a liquid

Country Status (5)

Country Link
AU (1) AU1038070A (en)
CH (1) CH517509A (en)
DE (1) DE2003359A1 (en)
FR (1) FR2029525A1 (en)
GB (1) GB1280602A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262244A (en) * 1991-12-05 1993-06-16 Profit Improvement & Eng Filtering apparatus
AU663544B2 (en) * 1991-12-05 1995-10-12 Profit Improvement & Engineering Limited Improvements in or relating to belt filters
US6267889B1 (en) 2000-01-26 2001-07-31 Mdf, Llc Rotary drum filter
CN100379480C (en) * 2006-08-16 2008-04-09 佛山安德里茨技术有限公司 Filter cloth rinser for vacuum filter and pressure filter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714300B1 (en) * 1993-12-24 1997-04-25 Pierre Conil Rotating cylinder type filtration device with internal vacuum.
CN113350885A (en) * 2021-06-21 2021-09-07 江西龙一再生资源有限公司 Wastewater filtering treatment equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262244A (en) * 1991-12-05 1993-06-16 Profit Improvement & Eng Filtering apparatus
GB2262244B (en) * 1991-12-05 1995-07-26 Profit Improvement & Eng Improvements in or relating to belt filters
AU663544B2 (en) * 1991-12-05 1995-10-12 Profit Improvement & Engineering Limited Improvements in or relating to belt filters
US6267889B1 (en) 2000-01-26 2001-07-31 Mdf, Llc Rotary drum filter
CN100379480C (en) * 2006-08-16 2008-04-09 佛山安德里茨技术有限公司 Filter cloth rinser for vacuum filter and pressure filter

Also Published As

Publication number Publication date
DE2003359A1 (en) 1970-07-30
CH517509A (en) 1972-01-15
FR2029525A1 (en) 1970-10-23
AU1038070A (en) 1971-07-22

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees