FR2381553A1 - Dewatering suspensions in belt filter - with feed introduced onto the inner belt surface - Google Patents

Dewatering suspensions in belt filter - with feed introduced onto the inner belt surface

Info

Publication number
FR2381553A1
FR2381553A1 FR7804819A FR7804819A FR2381553A1 FR 2381553 A1 FR2381553 A1 FR 2381553A1 FR 7804819 A FR7804819 A FR 7804819A FR 7804819 A FR7804819 A FR 7804819A FR 2381553 A1 FR2381553 A1 FR 2381553A1
Authority
FR
France
Prior art keywords
cylinder
belt
dewatering
inlet
filter
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.)
Withdrawn
Application number
FR7804819A
Other languages
French (fr)
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.)
JM Voith GmbH
Original Assignee
JM Voith GmbH
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 JM Voith GmbH filed Critical JM Voith GmbH
Publication of FR2381553A1 publication Critical patent/FR2381553A1/en
Withdrawn legal-status Critical Current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
    • B01D33/04—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
    • B01D33/044—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
    • B01D33/06—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
    • B01D33/44—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
    • 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

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Filtration Of Liquid (AREA)

Abstract

Filter for dewatering suspensions consists of a rotating cylinder with a sieve or cloth passing as an endless band around it. A feed inlet is mounted at a distance from the cylinder by means of which a pre-dewatering is achieved through the band before the cake reaches the cylinder. there is a scraper device to remove the cake from the cylinder. The inlet is mounted on the inner side of the band before the cylinder. The inlet has a distributor box and immediately below this is a support for the belt. This latter has a suction connection. The surface of the cylinder has grooves in it which run the guide wires of the belt. Also additional compression belts can be provided to press the main belt onto the cylinder. The belt can have a convex profile in the region of the feed box. Used esp. for dewatering fibre slurries in paper making. On such devices there is often a problem of the slurry being sprayed out from between the belt and the drum, if filtration rates are increased too much. This filter gives a prefiltering effect and allows increased outputs, simply and cheaply.
FR7804819A 1977-02-25 1978-02-17 Dewatering suspensions in belt filter - with feed introduced onto the inner belt surface Withdrawn FR2381553A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772708157 DE2708157A1 (en) 1977-02-25 1977-02-25 DEVICE FOR DRAINING SUSPENSIONS

Publications (1)

Publication Number Publication Date
FR2381553A1 true FR2381553A1 (en) 1978-09-22

Family

ID=6002135

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7804819A Withdrawn FR2381553A1 (en) 1977-02-25 1978-02-17 Dewatering suspensions in belt filter - with feed introduced onto the inner belt surface

Country Status (4)

Country Link
JP (1) JPS53126303A (en)
DE (1) DE2708157A1 (en)
FR (1) FR2381553A1 (en)
IT (1) IT1107106B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151093A (en) * 1978-03-24 1979-04-24 Lenox Institute For Research Stockwasher
CN114318929B (en) * 2022-01-18 2023-11-03 台州森林造纸有限公司 Fine smooth cardboard paper production line

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018082A (en) * 1973-06-12 1975-02-26

Also Published As

Publication number Publication date
JPS53126303A (en) 1978-11-04
IT7867384A0 (en) 1978-02-24
DE2708157A1 (en) 1978-08-31
IT1107106B (en) 1985-11-18

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Legal Events

Date Code Title Description
ST Notification of lapse