FR2372647A1 - Determining characteristics of suspensions e.g. of asbestos cement - using filtration appts. measuring filtration speed at controlled pressures - Google Patents

Determining characteristics of suspensions e.g. of asbestos cement - using filtration appts. measuring filtration speed at controlled pressures

Info

Publication number
FR2372647A1
FR2372647A1 FR7636454A FR7636454A FR2372647A1 FR 2372647 A1 FR2372647 A1 FR 2372647A1 FR 7636454 A FR7636454 A FR 7636454A FR 7636454 A FR7636454 A FR 7636454A FR 2372647 A1 FR2372647 A1 FR 2372647A1
Authority
FR
France
Prior art keywords
filtration
appts
suspensions
liq
determining characteristics
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
FR7636454A
Other languages
French (fr)
Other versions
FR2372647B3 (en
Inventor
Arian Zelwer
Jean-Paul Bombled
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.)
ETU RECH IND LIANTS HY CENTRE
Original Assignee
ETU RECH IND LIANTS HY CENTRE
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 ETU RECH IND LIANTS HY CENTRE filed Critical ETU RECH IND LIANTS HY CENTRE
Priority to FR7636454A priority Critical patent/FR2372647A1/en
Publication of FR2372647A1 publication Critical patent/FR2372647A1/en
Application granted granted Critical
Publication of FR2372647B3 publication Critical patent/FR2372647B3/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
    • B01D29/80—Handling the filter cake in the filter for purposes other than for regenerating for drying
    • B01D29/84—Handling the filter cake in the filter for purposes other than for regenerating for drying by gases or by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
    • B01D29/86—Retarding cake deposition on the filter during the filtration period, e.g. using stirrers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

Filtration appts. for determn. of the characteristics of a suspension consisting of a liq. contg. powder and/or fibres. The appts. includes a vessel divided into two compartments (a,b) by a filter, e.g. a filter paper, and pipes fitted with solenoid valves feed gas at a controllable pressure into compartments (a,b). The gas may be at 3-5 millibars (mb) and/or the gas pressure in the upper compartment may be 100-300 mb. The filter paper pref. rests on a perforated plate in which the holes prevent liq. entering the lower compartment (b) when the latter is pressurised. The solenoid valves pref. trigger a timer, and a meter which stops the timer when a given %, e.g. 80% of the vol. of the liq. has been filtered. Used, esp. in industries using large scale filtration of suspensions, to determine physico-chemical properties e.g. of asbestos-cement suspensions.
FR7636454A 1976-12-03 1976-12-03 Determining characteristics of suspensions e.g. of asbestos cement - using filtration appts. measuring filtration speed at controlled pressures Granted FR2372647A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7636454A FR2372647A1 (en) 1976-12-03 1976-12-03 Determining characteristics of suspensions e.g. of asbestos cement - using filtration appts. measuring filtration speed at controlled pressures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7636454A FR2372647A1 (en) 1976-12-03 1976-12-03 Determining characteristics of suspensions e.g. of asbestos cement - using filtration appts. measuring filtration speed at controlled pressures

Publications (2)

Publication Number Publication Date
FR2372647A1 true FR2372647A1 (en) 1978-06-30
FR2372647B3 FR2372647B3 (en) 1980-10-24

Family

ID=9180612

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7636454A Granted FR2372647A1 (en) 1976-12-03 1976-12-03 Determining characteristics of suspensions e.g. of asbestos cement - using filtration appts. measuring filtration speed at controlled pressures

Country Status (1)

Country Link
FR (1) FR2372647A1 (en)

Also Published As

Publication number Publication date
FR2372647B3 (en) 1980-10-24

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