WO1999053771A1 - An apparatus and a method for separating particular objects from a mixture of objects - Google Patents
An apparatus and a method for separating particular objects from a mixture of objects Download PDFInfo
- Publication number
- WO1999053771A1 WO1999053771A1 PCT/IS1999/000008 IS9900008W WO9953771A1 WO 1999053771 A1 WO1999053771 A1 WO 1999053771A1 IS 9900008 W IS9900008 W IS 9900008W WO 9953771 A1 WO9953771 A1 WO 9953771A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- objects
- band
- conveyor
- affinity
- conveyor band
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000203 mixture Substances 0.000 title claims abstract description 12
- 235000015170 shellfish Nutrition 0.000 claims abstract description 10
- 235000013599 spices Nutrition 0.000 claims abstract 2
- 241000251468 Actinopterygii Species 0.000 claims description 20
- 238000000926 separation method Methods 0.000 claims description 8
- 241000894007 species Species 0.000 claims description 7
- 241000143060 Americamysis bahia Species 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 241000238557 Decapoda Species 0.000 abstract description 17
- 235000019688 fish Nutrition 0.000 description 7
- 241001518045 Bolinichthys indicus Species 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/10—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects
- B07B13/11—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects involving travel of particles over surfaces which separate by centrifugal force or by relative friction between particles and such surfaces, e.g. helical sorters
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/90—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C25/00—Processing fish ; Curing of fish; Stunning of fish by electric current; Investigating fish by optical means
- A22C25/04—Sorting fish; Separating ice from fish packed in ice
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C25/00—Processing fish ; Curing of fish; Stunning of fish by electric current; Investigating fish by optical means
- A22C25/08—Holding, guiding, or conveying fish before, during or after its preparation ; Devices for sizing fish; Automatically adapting conveyors or processing machines to the measured size
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C29/00—Processing shellfish or bivalves, e.g. oysters, lobsters; Devices therefor, e.g. claw locks, claw crushers, grading devices; Processing lines
- A22C29/005—Grading or classifying shellfish or bivalves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/003—Separation of articles by differences in their geometrical form or by difference in their physical properties, e.g. elasticity, compressibility, hardness
Definitions
- a method for separating particular objects from a mixture of objects the objects having different properties, in particular surface characteristic.
- the objects can be shellfish such as shrimp mixed with other small fish species and juveniles.
- the objects are separated during their transport along a conveyor system.
- lantern fish is the main in-mix species. Measurements have shown that at times when fishing shrimp more thatn 40% of the catch can be in-mix species. Untill recently it has been economically unfeasiable to separate the in-mix species from the shirmp, aboard the fishing vessel. The only known method has been to handpick the in-mixed fish from the shellfish. When the percentage of in-mix is high the only economical option has been to return the catch back to the sea. This is not acceptable for those nations pursuing sustainable fishing policy.
- the aim of the invention is to set forth an apparatus and a method for separating small fish species and juveniles from shellfish catches such as shrimp and thus increase the value of the catch.
- This aim is achived by the invention being characterised in that in that the objects are directed onto an upwardly incline conveyor band, said conveying band being continuouesly moved in the upward incline direction, the particular objects to be separated having less affinity to the surface of the band slide downward against the movement of the band, whereas other objects having higher affinity to the surface of the band move upward with the band, thus the objects are directed into two groups, one at the lower end of the conveyor band where the particular objects having less affinty can be collected and the other at the upper end of the band where the other objects with higher affinity are collected.
- the invention is characterised in that the inclination of the conveyor band (2) is greater than the reference surface affinity inclintaion of the particular object, being shellfish such as shrimp, but less than the reference surface affinity inclinitaion of the objects to be sepparated out.
- the invention is characterised in that the inclination of the conveyor band is 1 50 - 60° from horizontal plane, in particular, 25 - 55°, most preffererd 30 - 40°.
- the invention is characterised in that one or more incline conveyor band are aranged at the upper and/or lower end of the first inclined separating conveyor band for further separation of the objects.
- the invention is characterised in that the surface of the conveyor band being partly open and the surface of the conveyor band being subject to vibration and/or air blow or heating.
- Figure 1 shows the arrangement of a conveyor bands for separating shrimp from small fish species and juveniles
- Figure 2 shows arrangement of a number of inclined conveyor bands for separation shrimp from small fish species
- Figurer 1 shows a conveyor system ( 1 ) where a mixture of shrimp and small fish species are transported.
- the mixtuer is moved on an in-feed conveyor band (6) and lifted upward to obtain a hight difference in relation to the first conveyor separation band (2).
- Shrimp and small fish species fall from the end of the infeed conveyor band (6), onto the first conveyor separation band (2).
- the band (2) is arranged in an upwardly inclined direction (3).
- the inclination ( ⁇ ) of the conveyor band is greater than the reference surface affinity inclination for shrimp, but less than the referance surface affinity inclination for fish species to be out-separated.
- Reference surface affinity inclination is here defined as the inclination of a surface where an object slides down a particular surface.
- This inclination can be altered by altering the upward movement of the surface as well as the surface characteristic of the band.
- the objects to be separated are directed to the opposite ends of the separation conveyor band (2).
- the speed of the conveyor belt can be increased or decreased as well as the slope of the band.
- Figure 2 shows a number of transport bands (2, 1 3, 1 4) for separating shrimp from small fish species.
- the bands are arranged one after the other.
- second conveyor band By arranging second conveyor band in series with the upper and/or the lower end of the first separation band, the separation can be further improved.
- Shrimp has an hard outer shell where as most other fish species have slime on their surface. Therefor shrimp has less affinity to some surface whereas fish has greater affinity.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Food Science & Technology (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Processing Of Meat And Fish (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU37281/99A AU3728199A (en) | 1998-04-22 | 1999-04-21 | An apparatus and a method for separating particular objects from a mixture of objects |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IS4724 | 1998-04-22 | ||
IS4724 | 1998-04-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999053771A1 true WO1999053771A1 (en) | 1999-10-28 |
Family
ID=36793894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IS1999/000008 WO1999053771A1 (en) | 1998-04-22 | 1999-04-21 | An apparatus and a method for separating particular objects from a mixture of objects |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU3728199A (en) |
WO (1) | WO1999053771A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1262103A1 (en) * | 2001-05-25 | 2002-12-04 | Vilsund Muslinge Industri A/S | A method of and an apparatus for sorting shellfish |
FR2922726A1 (en) * | 2007-10-24 | 2009-05-01 | Ifremer | DEVICE AND METHOD FOR SORTING SHRIMPS. |
CN110882927A (en) * | 2019-12-13 | 2020-03-17 | 亚洲硅业(青海)股份有限公司 | Material sorting device and material sorting method |
CN112243920A (en) * | 2020-11-11 | 2021-01-22 | 倪略凯 | Red shrimp sea is caught and is used fish shrimp separator |
US11974582B2 (en) | 2019-08-01 | 2024-05-07 | Clearwater Seafoods Limited Partnership | Apparatus and methods for mollusc processing |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112189613B (en) * | 2020-09-30 | 2022-04-12 | 广东省现代农业装备研究所 | Fish and shrimp separation method and separation device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1437953A (en) * | 1972-08-31 | 1976-06-03 | Agfa Gevaert | Apparatus and method for separating spherical from non-spherical objects |
GB1483134A (en) * | 1975-01-28 | 1977-08-17 | Ranks Hovis Mcdougall Ltd | Method and apparatus for separating seeds |
DE2822854A1 (en) * | 1978-05-26 | 1979-11-29 | Werner Dipl Ing Thomsen | Prawns or shrimps mechanically crushed between bolts or rolls - edible flesh is then swept sideways to separate from broken shells |
GB2151948A (en) * | 1983-12-29 | 1985-07-31 | Nat Res Dev | Separation equipment |
GB2168625A (en) * | 1984-12-21 | 1986-06-25 | Wmc Resource Recovery Limited | Material separators |
-
1999
- 1999-04-21 AU AU37281/99A patent/AU3728199A/en not_active Abandoned
- 1999-04-21 WO PCT/IS1999/000008 patent/WO1999053771A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1437953A (en) * | 1972-08-31 | 1976-06-03 | Agfa Gevaert | Apparatus and method for separating spherical from non-spherical objects |
GB1483134A (en) * | 1975-01-28 | 1977-08-17 | Ranks Hovis Mcdougall Ltd | Method and apparatus for separating seeds |
DE2822854A1 (en) * | 1978-05-26 | 1979-11-29 | Werner Dipl Ing Thomsen | Prawns or shrimps mechanically crushed between bolts or rolls - edible flesh is then swept sideways to separate from broken shells |
GB2151948A (en) * | 1983-12-29 | 1985-07-31 | Nat Res Dev | Separation equipment |
GB2168625A (en) * | 1984-12-21 | 1986-06-25 | Wmc Resource Recovery Limited | Material separators |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1262103A1 (en) * | 2001-05-25 | 2002-12-04 | Vilsund Muslinge Industri A/S | A method of and an apparatus for sorting shellfish |
FR2922726A1 (en) * | 2007-10-24 | 2009-05-01 | Ifremer | DEVICE AND METHOD FOR SORTING SHRIMPS. |
WO2009056731A2 (en) * | 2007-10-24 | 2009-05-07 | Ifremer-Institut Francais De Recherche Pour L'exploitation De La Mer | Device and method for sorting prawns |
WO2009056731A3 (en) * | 2007-10-24 | 2009-06-25 | Ifremer | Device and method for sorting prawns |
US11974582B2 (en) | 2019-08-01 | 2024-05-07 | Clearwater Seafoods Limited Partnership | Apparatus and methods for mollusc processing |
CN110882927A (en) * | 2019-12-13 | 2020-03-17 | 亚洲硅业(青海)股份有限公司 | Material sorting device and material sorting method |
CN112243920A (en) * | 2020-11-11 | 2021-01-22 | 倪略凯 | Red shrimp sea is caught and is used fish shrimp separator |
Also Published As
Publication number | Publication date |
---|---|
AU3728199A (en) | 1999-11-08 |
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