FR2238887A1 - Suspensions transferred between closed systems - without loss of pressure or wastage using piston and valved cylinder - Google Patents

Suspensions transferred between closed systems - without loss of pressure or wastage using piston and valved cylinder

Info

Publication number
FR2238887A1
FR2238887A1 FR7425481A FR7425481A FR2238887A1 FR 2238887 A1 FR2238887 A1 FR 2238887A1 FR 7425481 A FR7425481 A FR 7425481A FR 7425481 A FR7425481 A FR 7425481A FR 2238887 A1 FR2238887 A1 FR 2238887A1
Authority
FR
France
Prior art keywords
piston
cylinder
liquid
plug
wastage
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.)
Pending
Application number
FR7425481A
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.)
Muanyagipari Kutato Intezet
Original Assignee
Muanyagipari Kutato Intezet
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 Muanyagipari Kutato Intezet filed Critical Muanyagipari Kutato Intezet
Publication of FR2238887A1 publication Critical patent/FR2238887A1/en
Pending 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
    • 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
    • B01D29/11—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 bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31—Self-supporting filtering elements
    • B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
    • B01D29/356—Self-supporting filtering elements arranged for outward flow filtration open-ended, the arrival of the mixture to be filtered and the discharge of the concentrated mixture are situated on both opposite sides of the filtering element
    • 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
    • B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
    • B01D29/445—Bar screens
    • 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
    • B01D29/82—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression
    • B01D29/824—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression using pistons
    • 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
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/02—Feed or outlet devices therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Cyclones (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

In continuously removing a quantity of a liquid or suspension from a closed system at a given pressure into another system at a different pressure the two systems are interconnected by a cylinder closed at its downstream end by a plug; after the liquid has entered the cylinder from the source system, a piston is introduced at that end and advanced through the cylinder, the plug at the other end being simultaneously removed to permit the liquid to flow into the second system. When transference is complete, the plug is replaced, the piston is withdrawn and the operation can be repeated. This procedure may be combined with simultaneous enrichment of the suspension or liquid; for this purpose, the wall of the cylinder is formed as a filter, the piston is advanced for a certain distance to expel liquid through this filter before the closure plug is opened; after this, the procedure is carried out as before. No direct communication between the systems, or equalisation of pressures, is necessary. No overflow or wastage of material takes place. The mechanics of the system are extremely simple.
FR7425481A 1973-07-25 1974-07-23 Suspensions transferred between closed systems - without loss of pressure or wastage using piston and valved cylinder Pending FR2238887A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUMU000506 1973-07-25

Publications (1)

Publication Number Publication Date
FR2238887A1 true FR2238887A1 (en) 1975-02-21

Family

ID=10999693

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7425481A Pending FR2238887A1 (en) 1973-07-25 1974-07-23 Suspensions transferred between closed systems - without loss of pressure or wastage using piston and valved cylinder

Country Status (7)

Country Link
CH (1) CH598861A5 (en)
CS (1) CS180176B1 (en)
DD (1) DD113847A1 (en)
DE (1) DE2435799A1 (en)
FR (1) FR2238887A1 (en)
IT (1) IT1019746B (en)
SU (1) SU566507A3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0232952A1 (en) * 1986-02-13 1987-08-19 Beheermaatschappij B. Bosman B.V. A filter apparatus having a tubular filter
EP0244765A2 (en) * 1986-05-09 1987-11-11 Hans Seyer Method for separating solid substances from faecal sludge, and device for carrying out this method
EP0293515A2 (en) * 1987-05-16 1988-12-07 Hans Georg Huber Device for removing solids from liquid flowing in a sewer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3813899A1 (en) * 1988-04-25 1989-11-02 Joseph Dipl Ing Ecken Conveying device for solids into or out of process spaces at different pressures

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0232952A1 (en) * 1986-02-13 1987-08-19 Beheermaatschappij B. Bosman B.V. A filter apparatus having a tubular filter
EP0244765A2 (en) * 1986-05-09 1987-11-11 Hans Seyer Method for separating solid substances from faecal sludge, and device for carrying out this method
EP0244765A3 (en) * 1986-05-09 1988-01-27 Hans Seyer Method for separating solid substances from faecal sludge, and device for carrying out this method
EP0293515A2 (en) * 1987-05-16 1988-12-07 Hans Georg Huber Device for removing solids from liquid flowing in a sewer
EP0293515A3 (en) * 1987-05-16 1989-04-26 Hans Georg Huber Device for removing solids from liquid flowing in a sewer

Also Published As

Publication number Publication date
CS180176B1 (en) 1977-12-30
IT1019746B (en) 1977-11-30
DE2435799A1 (en) 1975-02-06
CH598861A5 (en) 1978-05-12
DD113847A1 (en) 1975-07-12
SU566507A3 (en) 1977-07-25

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