GB1395478A - Apparatus for dewatering a suspension - Google Patents

Apparatus for dewatering a suspension

Info

Publication number
GB1395478A
GB1395478A GB2108073A GB2108073A GB1395478A GB 1395478 A GB1395478 A GB 1395478A GB 2108073 A GB2108073 A GB 2108073A GB 2108073 A GB2108073 A GB 2108073A GB 1395478 A GB1395478 A GB 1395478A
Authority
GB
United Kingdom
Prior art keywords
web
sludge
rollers
bands
driven
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
GB2108073A
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.)
Rederi Nordstjernan AB
Original Assignee
Rederi Nordstjernan AB
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 Rederi Nordstjernan AB filed Critical Rederi Nordstjernan AB
Publication of GB1395478A publication Critical patent/GB1395478A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
    • 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
    • B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
    • B01D33/042—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering whereby the filtration and squeezing-out take place between at least two 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
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/24—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band
    • B30B9/246—The material being conveyed around a drum between pressing bands

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Treatment Of Sludge (AREA)
  • Paper (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

1395478 Rotary press for dewatering sludge REDERI AB NORDSTJERNAN 3 May 1973 [5 May 1972] 21080/73 Heading B1D Sewage sludge is dewatered by pressing between bands 4 and 6, of which at least band 6 is pervious and driven, the bands encircling at least part of an annular array of rollers 3 which is driven about axis 2 in the same direction as band 6 but faster. Hopper 9 delivers sludge between the bands, the solid fraction being received at 10 and the liquid at 11. Web 6 is wire mesh and web 4 may be impervious rubber or plastics or pervious felt or wire mesh. In the latter case liquid receiving means would be provided inside the roller array. The rollers 3 are freely rotatable between two end plates 1 or spiders. Web 4 may encircle the rollers closely or run round spaced roll(s) 5, and may be independently driven at a different speed from web 6. The tension of web 6 and the relative speeds of web 6 and the roller array are variable to control the pressure and duration and number of pressing or shearing actions applied to the sludge.
GB2108073A 1972-05-05 1973-05-03 Apparatus for dewatering a suspension Expired GB1395478A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE05949/72A SE363056B (en) 1972-05-05 1972-05-05

Publications (1)

Publication Number Publication Date
GB1395478A true GB1395478A (en) 1975-05-29

Family

ID=20267595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2108073A Expired GB1395478A (en) 1972-05-05 1973-05-03 Apparatus for dewatering a suspension

Country Status (12)

Country Link
JP (1) JPS4954964A (en)
AT (1) AT325938B (en)
AU (1) AU5522773A (en)
BR (1) BR7303247D0 (en)
CH (1) CH548854A (en)
DE (1) DE2322588A1 (en)
ES (1) ES414418A1 (en)
FR (1) FR2183833B3 (en)
GB (1) GB1395478A (en)
IT (1) IT985850B (en)
SE (1) SE363056B (en)
ZA (1) ZA733038B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043599A1 (en) * 1980-06-25 1982-01-13 B.V. Machinefabriek v/h Pannevis & Zn. Method and device for removing a fluid from a mixture of a fluid and a solid substance

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1519234A (en) * 1976-05-05 1978-07-26 Hartley Simon Ltd Filter presses
CH644414A5 (en) * 1980-02-06 1984-07-31 Escher Wyss Gmbh SCREENING MACHINE, ESPECIALLY FOR THE TREATMENT OF AQUEOUS FIBER FABRIC SUSPENSION PRODUCED FROM WASTE PAPER.
AT377803B (en) * 1982-09-22 1985-05-10 Escher Wyss Gmbh PAPER MACHINE
DE3410746A1 (en) * 1984-03-23 1985-10-03 Alb. Klein Gmbh & Co Kg, 5241 Niederfischbach Double belt press
EP0162179A1 (en) * 1984-05-21 1985-11-27 Sulzer-Escher Wyss Gmbh Method and device for washing fibrous-material suspensions recovered from waste paper
EP0197731A3 (en) * 1985-03-29 1988-07-06 The Black Clawson Company Apparatus and method for thickening pulp and paper stock
DE8620134U1 (en) * 1986-07-26 1986-09-11 J.M. Voith Gmbh, 7920 Heidenheim Drainage device
DE19805593A1 (en) * 1998-02-12 1999-08-19 Voith Sulzer Papiertech Patent Thickener

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043599A1 (en) * 1980-06-25 1982-01-13 B.V. Machinefabriek v/h Pannevis & Zn. Method and device for removing a fluid from a mixture of a fluid and a solid substance

Also Published As

Publication number Publication date
AU5522773A (en) 1974-11-07
CH548854A (en) 1974-05-15
AT325938B (en) 1975-11-10
ES414418A1 (en) 1976-02-01
SE363056B (en) 1974-01-07
ZA733038B (en) 1974-04-24
DE2322588A1 (en) 1973-11-15
IT985850B (en) 1974-12-20
BR7303247D0 (en) 1974-06-27
FR2183833A1 (en) 1973-12-21
FR2183833B3 (en) 1976-04-23
JPS4954964A (en) 1974-05-28
ATA393673A (en) 1975-01-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees