AU579910B2 - Method of recovering sand from dredge water mixed with sand and associated device - Google Patents
Method of recovering sand from dredge water mixed with sand and associated deviceInfo
- Publication number
- AU579910B2 AU579910B2 AU51313/85A AU5131385A AU579910B2 AU 579910 B2 AU579910 B2 AU 579910B2 AU 51313/85 A AU51313/85 A AU 51313/85A AU 5131385 A AU5131385 A AU 5131385A AU 579910 B2 AU579910 B2 AU 579910B2
- Authority
- AU
- Australia
- Prior art keywords
- sand
- cyclone
- hydro
- separating
- preliminarily
- 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.)
- Ceased
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
- E02F7/065—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators mounted on a floating dredger
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
- B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/267—Separation of sediment aided by centrifugal force or centripetal force by using a cyclone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
- B04C2009/002—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with external filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
- Cyclones (AREA)
Abstract
1. Arrangement for the recovery of sand, in particular finest sand, from dredger water mixed with sand, the arrangement consisting of at least one separating device, for example a scoop wheel or a sieve, by which a partial separation of the water from the sand as well as a removal of this water still mixed with sand takes place, with a preliminarily separating hydro-cyclone (8) connected behind the separating device and a reconcentrating hydro-cyclone (13) connected there-behind, wherein an adequate head (h) is provided between the overflow of the separating device (3) and the inlet (7) of the preliminary separating hydro-cyclone (8) arranged thereunder and wherein the overflow (9) of the preliminarily separating hydro-cyclone (8) is conducted away into a settling pool or into the waters to be dredged, characterised thereby, that a pressure-boosting pump (11), the pressure side of which is connected with the inlet of the reconcentrating hydro-cyclone (13), is connected directly without interposition of a pump sump to the lower course (10) of preliminarily separating hydro-cyclone.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3445586A DE3445586A1 (en) | 1984-12-14 | 1984-12-14 | METHOD FOR RECOVERY OF SAND FROM EXCAVATOR WATER SANDED, AND RELATED DEVICE |
DE3445586 | 1984-12-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU5131385A AU5131385A (en) | 1986-08-14 |
AU579910B2 true AU579910B2 (en) | 1988-12-15 |
Family
ID=6252742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU51313/85A Ceased AU579910B2 (en) | 1984-12-14 | 1985-12-13 | Method of recovering sand from dredge water mixed with sand and associated device |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0186021B1 (en) |
AT (1) | ATE57625T1 (en) |
AU (1) | AU579910B2 (en) |
DE (2) | DE3445586A1 (en) |
ES (1) | ES8701508A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5186332A (en) * | 1991-06-14 | 1993-02-16 | The Black Clawson Company | Paper stock screening apparatus having heavy rejects trap |
DE4233316A1 (en) * | 1992-10-05 | 1994-04-07 | Kurt Seibt | Combined arrangement of scoop wheel and hydrocyclone - e.g. for separately recovering gravel and sand from water |
DE4447260A1 (en) * | 1994-12-30 | 1996-07-04 | Muesing Anton Gmbh Co Kg | Method and device for the remediation of a body of water, in particular an inland water |
US6036871A (en) * | 1996-04-25 | 2000-03-14 | Fan Separator Gmbh | Method and device for separating heavier from lighter parts of aqueous slurries by means of centrifugal force effects |
ATE203431T1 (en) * | 1996-04-25 | 2001-08-15 | Fan Separator Gmbh | DEVICE FOR SEPARATING THE HEAVIER FROM THE LIGHTER PORTIONS OF AQUEOUS TURBIES USING CENTRIFUGAL FORCE |
CN103816991B (en) * | 2014-03-21 | 2016-06-08 | 张春瑜 | A kind of hydroecium screening device |
NL2014291B1 (en) | 2015-02-13 | 2016-10-13 | Ihc Holland Ie Bv | Natural vortex overflow system. |
CN109364571B (en) * | 2018-10-19 | 2020-06-02 | 河海大学 | Device and method for reducing pollution of overflow to water area in dredging |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU3916478A (en) * | 1977-08-25 | 1980-04-17 | Edward High Robert | Dewatering coal |
AU5141079A (en) * | 1978-10-05 | 1980-04-17 | Krebs Engineers | Hydrocyclone separating method and apparatus |
AU590766B2 (en) * | 1985-06-17 | 1989-11-16 | Dolby Laboratories Licensing Corporation | Circuit arrangements for modifying dynamic range using action substitution and superposition techniques |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2279647A1 (en) * | 1974-07-23 | 1976-02-20 | Seine Cie Sablieres | Granular material grading and washing - uses pump to move water-material mixture through successive sieving stages |
FR2452322A1 (en) * | 1979-03-30 | 1980-10-24 | Alsthom Atlantique | Hydraulic decanter for treatment of sands - comprises bucket wheel recovering and dewatering mixt. of water and sands from vessel and cyclone separator recovering fines |
-
1984
- 1984-12-14 DE DE3445586A patent/DE3445586A1/en active Granted
-
1985
- 1985-12-07 AT AT85115600T patent/ATE57625T1/en not_active IP Right Cessation
- 1985-12-07 DE DE8585115600T patent/DE3580255D1/en not_active Expired - Lifetime
- 1985-12-07 EP EP85115600A patent/EP0186021B1/en not_active Expired - Lifetime
- 1985-12-12 ES ES549871A patent/ES8701508A1/en not_active Expired
- 1985-12-13 AU AU51313/85A patent/AU579910B2/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU3916478A (en) * | 1977-08-25 | 1980-04-17 | Edward High Robert | Dewatering coal |
AU5141079A (en) * | 1978-10-05 | 1980-04-17 | Krebs Engineers | Hydrocyclone separating method and apparatus |
AU590766B2 (en) * | 1985-06-17 | 1989-11-16 | Dolby Laboratories Licensing Corporation | Circuit arrangements for modifying dynamic range using action substitution and superposition techniques |
Also Published As
Publication number | Publication date |
---|---|
ATE57625T1 (en) | 1990-11-15 |
EP0186021A3 (en) | 1987-12-16 |
AU5131385A (en) | 1986-08-14 |
EP0186021A2 (en) | 1986-07-02 |
DE3445586A1 (en) | 1986-07-03 |
ES549871A0 (en) | 1986-12-01 |
DE3580255D1 (en) | 1990-11-29 |
EP0186021B1 (en) | 1990-10-24 |
DE3445586C2 (en) | 1989-03-23 |
ES8701508A1 (en) | 1986-12-01 |
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