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 cylinderInfo
- 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
Links
- 239000000725 suspension Substances 0.000 title abstract 3
- 239000007788 liquid Substances 0.000 abstract 5
- 239000000463 material Substances 0.000 abstract 1
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)
- Extraction Or Liquid Replacement (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Cyclones (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.
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)
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)
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 |
-
1974
- 1974-07-16 CH CH976174A patent/CH598861A5/xx not_active IP Right Cessation
- 1974-07-17 DD DD179963A patent/DD113847A1/xx unknown
- 1974-07-23 FR FR7425481A patent/FR2238887A1/en active Pending
- 1974-07-24 SU SU7402049256A patent/SU566507A3/en active
- 1974-07-25 DE DE2435799A patent/DE2435799A1/en not_active Withdrawn
- 1974-07-25 CS CS7400005339A patent/CS180176B1/en unknown
- 1974-07-25 IT IT25543/74A patent/IT1019746B/en active
Cited By (5)
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 |
---|---|
IT1019746B (en) | 1977-11-30 |
CS180176B1 (en) | 1977-12-30 |
DE2435799A1 (en) | 1975-02-06 |
SU566507A3 (en) | 1977-07-25 |
DD113847A1 (en) | 1975-07-12 |
CH598861A5 (en) | 1978-05-12 |
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