FR2295776A1 - Forced-circulation liquid sealing of vacuum box tops - using compressible lip seals - Google Patents

Forced-circulation liquid sealing of vacuum box tops - using compressible lip seals

Info

Publication number
FR2295776A1
FR2295776A1 FR7442864A FR7442864A FR2295776A1 FR 2295776 A1 FR2295776 A1 FR 2295776A1 FR 7442864 A FR7442864 A FR 7442864A FR 7442864 A FR7442864 A FR 7442864A FR 2295776 A1 FR2295776 A1 FR 2295776A1
Authority
FR
France
Prior art keywords
vacuum
box
forced
band
vacuum box
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.)
Granted
Application number
FR7442864A
Other languages
French (fr)
Other versions
FR2295776B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7442864A priority Critical patent/FR2295776A1/en
Priority to ZA757897A priority patent/ZA757897B/en
Priority to US05/643,060 priority patent/US4037338A/en
Priority to CA242,440A priority patent/CA1067017A/en
Publication of FR2295776A1 publication Critical patent/FR2295776A1/en
Application granted granted Critical
Publication of FR2295776B1 publication Critical patent/FR2295776B1/fr
Granted 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
    • 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
    • B01D33/74—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging filtrate
    • B01D33/745—Construction of suction casings, pans, 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
    • B01D2201/20—Pressure-related systems for filters
    • B01D2201/204—Systems for applying vacuum to filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Package Frames And Binding Bands (AREA)

Abstract

The efficiency of operation of moving band vacuum fillers may be improved by forced incubation of a suitable miscible liquid between the band and the top of the vacuum boxes; this improves the seal at the top of the box and also reduces wear on the box top. In addition, special edges are designed to the vacuum box so that they conform to the shape of the band as it moves over the box. In the operations of band fillers and similar vacuum driven devices. Improves vacuum efficiency and reduces mechanical evasion of vacuum box top.
FR7442864A 1974-12-26 1974-12-26 Forced-circulation liquid sealing of vacuum box tops - using compressible lip seals Granted FR2295776A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7442864A FR2295776A1 (en) 1974-12-26 1974-12-26 Forced-circulation liquid sealing of vacuum box tops - using compressible lip seals
ZA757897A ZA757897B (en) 1974-12-26 1975-12-18 Improvements in or relating to vacuum belt filters
US05/643,060 US4037338A (en) 1974-12-26 1975-12-22 Vacuum belt filters
CA242,440A CA1067017A (en) 1974-12-26 1975-12-23 Vacuum belt filters with liquid edge seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7442864A FR2295776A1 (en) 1974-12-26 1974-12-26 Forced-circulation liquid sealing of vacuum box tops - using compressible lip seals

Publications (2)

Publication Number Publication Date
FR2295776A1 true FR2295776A1 (en) 1976-07-23
FR2295776B1 FR2295776B1 (en) 1979-02-09

Family

ID=9146649

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7442864A Granted FR2295776A1 (en) 1974-12-26 1974-12-26 Forced-circulation liquid sealing of vacuum box tops - using compressible lip seals

Country Status (2)

Country Link
FR (1) FR2295776A1 (en)
ZA (1) ZA757897B (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
ZA757897B (en) 1977-03-30
FR2295776B1 (en) 1979-02-09

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Legal Events

Date Code Title Description
AR Application made for restoration
ST Notification of lapse