WO2005068094A1 - Ridge-belt grading apparatus - Google Patents
Ridge-belt grading apparatus Download PDFInfo
- Publication number
- WO2005068094A1 WO2005068094A1 PCT/IS2005/000002 IS2005000002W WO2005068094A1 WO 2005068094 A1 WO2005068094 A1 WO 2005068094A1 IS 2005000002 W IS2005000002 W IS 2005000002W WO 2005068094 A1 WO2005068094 A1 WO 2005068094A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- belts
- grading
- sloping sides
- range
- belt
- Prior art date
Links
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
- B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
- B07B13/065—Apparatus for grading or sorting using divergent conveyor belts or cables
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Definitions
- the invention concerns an apparatus for grading objects such as in particular delicate items such as fish or shrimp in respect of their size.
- the apparatus comprises juxtaposed substantially parallel endless conveyor belts formed by hinged segments with a sloping cross-section such that in between each adjacent pair of belts is formed a V-shaped valley with substantially continuous steep sloping sides.
- grading apparatus include ridge-belt machines, such as have been developed earlier by the present inventors and are disclosed in WO 96/41541 and WO 98/48951, the whole contents of which are included herein by reference.
- Other similar apparatus are described in US Patent No. 4,723,660 and Norwegian Patent No. 132917- Ri ge belt machines comprise juxtaposed conveyor belts arranged such that the width of channels between adjacent belts is wider at the unloading end of the belts than at the loading end.
- the items to be sorted are loaded at the loading end of the conveyors and transported by the conveyors towards the unloading end. Means for loading evenly and suitably the items on the loading end have been developed and are described, e.g. in WO 98/48951.
- graded batches may contain a substantial portion of under-size items, i.e. items that are conveyed too far along the sorting channel and fall through the channel too late and into a grade intended for larger items.
- the inventors have now surprisingly found that by providing ridge belts with substantially steep sides such that V-shaped open-bottom channels are formed in between adjacent belts width a channel angle in the range of about 12-40° (i.e., each side having an angle in the range of about 70-85°) much improved grading is achieved, as the items are oriented substantially more regularly (non-tilted) in the sorting channels.
- a preferred embodiment of the apparatus of the invention has sorting channels with side walls having a slope of about 80°, i.e. a total channel angle of 20° between the two sides of a sorting channel formed between two ridge belts comprising a plurality of hinged segments each further comprising an open cleft.
- Such an apparatus with 5 m long conveyors can be used to grade items such as for example capelin or shrimp in many different size grades with much more accuracy than with conventional prior art ridge belt grading machines.
- Figure 1 shows a segment of a conveyor belt of the invention.
- Figure 2a is a side view of a segment and 2b shows the front and back of a segment.
- Figure 3 shows five joined segments.
- Figure 4 illustrates the difference between the measured wifcith of items such as for example shrimp (4a) and capelin (4b) in a vertically symmetrical and a vertically tilted position.
- Figure 5 illustrates the difference between a straight lying shrimp in a sorting channel according to the invention (5a) and in a prior art apparatus (5b).
- Figure 6 shows the contact points between an item such as lshrimp and the side walls of a sorting channel according to the invention (6a) arjid according to prior art (6b), (6c) clarifies the difference between the contact points.
- Figure 7 is a side view of an apparatus of the invention.
- Figure 8 is a top view of an apparatus of the invention.
- the apparatus of the invention is suited for mrading delicate items such as capelin, sardines or shrimp, and may also be used (for sorting of other delicate goods such as, but not limited to, herring, mackerel, menhaden, anchovy, horse mackerel, and blue whiting, as well as for oysters, clams and mussels as well as other products having similar characteristics.
- the apparatus is particularly useful for grading of shrimp, either peeled or in the shell, whereas conventional prior art ridge belt grading machines are not suitable for grading of shrimp.
- shrimp 15
- shrimp have a tendency for being oriented vertically symmetrical in the steep sorting channels of the apparatus of the invention such that the measured width of the shrimp measured across the channel equals the nominal width (10) of the shrimp body.
- a shrimp is shown in Figure 5b lying in between two segments of a prior art ridge sorting machine.
- Such prior art segments have substantially less sloping sides, or about 60-65° forming a wider, more shallow channel, leaning towards one side of the channel such that the effective width of the shrimp is wider than the nominal width.
- Figure 6a shows a shrimp lying in a sorting channel in an apparatus of the present invention, the contact points (13) between the shrimp and the channel sides are higher up on the sides of the shrimp such that the shrimp is more stably oriented.
- the sorting channels according to the present invention preferably have a channel angle (7) in the range of about 10-40°, more preferably in the range of about 15-35°, and more preferably the range of about 20-30°.
- the sorting channels have a channel angle of about 20°. This would correspond to that the angle (8) of the sides of the channels is in the range of about 70-85°, and preferably in the range of about 70- 80° and more preferably about 75-80°.
- the apparatus of the present invention can use many different types of belts as long as they are shaped with the proper cross-section as described herein.
- continuous solid belts are used made from an elastic bendable material such that the belts can turn around the conveyor wheels (20).
- Such belts are made for example from extruded polymer/rubber mixtures.
- such belts may have regularly distributed notches into the ridge of the belt to ease the bending of the belt around the conveyor wheels (20).
- belts comprised of hinged segments, such as shown in the accompanying Figures 1-3.
- Such segments can be made of any of a variety of food-industry compatible materials such as as nylon and or HDPE (high density polyethylene).
- each of said hinged segments has an open cleft (3) between the sloping sides, such as shown in Figure 1 and 2b.
- Such an open cleft substantially simplifies rinsing and washing of the conveyor belts.
- the open cleft further emphasise one important aspect of the invention.
- the open cleft design allows decreased sid wall hight, flexibility and adjustment of sid-wall slope. In conventional ridge belts with segments that have closed ridges, impurities may get trapped inside the segments, which are difficult to remove with simple rinsing.
- the width of the cleft depends on the height of the sloping sides of the segment, typically the width is in the range of about 3-12 mm, such as in the range of about 3-10 mm, including the range of about 4-10 mm or the range of about 4-8 mm, or about 4, 5, 6, 7, 8, 9 or 10 mm.
- the proportions (width and height) of the segments will depend on the items being sorted, as will the widths separating adjacent segments, i.e. the width of the sorting channel bottoms.
- the height of the segments is in the range of about 5-9 cm, or in the range of about 6-8 cm, or about 5, 6, 7, 8, or 9 cm high.
- different dimensions are used, e.g. having segments with a height in the range of about 10-20 cm, such as the range of about 10-15 cm. If such large-size segmented belts with open clefts on the ridge as described above, the width of the cleft will be correspondingly wider, keeping the same or similar proportions as described above for smaller belt segments.
- the bottom edges (4) of the sloping sides (2) may be either sharp interfaces, round edges, or shaped with thin rims, e.g. approximately vertical 1-5 mm wide rims.
- the sloping sides (2) of the segments/channels may be substantially flat and smooth, but can in alternative embodiments have a corrugated or wavy pattern, which could accommodate sorting of items with an irregular surface, such as for example fish with protruding eyes and/or fins:
- the inclination of the ridge belts is typically in the range of about -5° to 25°, or about 0-10° such as in the range of about 4° to 10°, such as in the range of about 4° to 8°, or in the range of about 5° to 7°. Certain embodiments have a belt inclination in the range of about -3° to 0°, such as about -3° or about 0° (i.e., horizontal belts).
- the segments may be coupled together in different ways such as by simple "hinges” (5 ,6) as shown in Figure 2a.
- the segments form essentially continuous ridge belts (27) as shown in Figure 3 and can form endless loops that are guided by rails or belts around revolving wheels (20) that keep the ridge belts (27) in motion.
- Figure 7 shows a side view of an apparatus of the invention, having a frame (19), wheels (20), infeeding means (21-24), and collecting means (25, 26).
- Figure 8 is a top view of the same apparatus, which has 9 ridge belts (27) but any desired number of belts can be used.
- the sorting channels (9) are wider at the output end (29) than at the infeeding end (28).
- the collecting means (25) can be configured for different number of size grades, the output end collecting means (26) receive the items that are too large to fall through the sorting channels.
- a channel width starting in the range of about 5-10 mm can be used and ending at 15-25 mm, in a preferred embodiment with 5 m long conveyors, the sorting channels are about 8 mm wide at the infeeding end (28) and about 18 mm wide at the output end (29).
- the infeeding means (21-24) ensure that the material to be sorted is evenly distributed in the sorting channels and is not placed on top of the ridge clefts (3) on the segments.
- Such infeeding means are described in detail in applicant's earlier application No. WO 03/043428 which is incorporated herein in full by reference.
- An apparatus configured for capelin grading with 28 ridge belts can sort up to 30-40 tonnes per hour, and receives about 650 individual capelins per second.
- the accuracy of the grading is high such that the number of and under-size items in each size grade is minimized.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
- Processing Of Meat And Fish (AREA)
- Sorting Of Articles (AREA)
- Belt Conveyors (AREA)
- Meat, Egg Or Seafood Products (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
- Basic Packing Technique (AREA)
- Farming Of Fish And Shellfish (AREA)
- Telephone Function (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Noodles (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MXPA06008064A MXPA06008064A (en) | 2004-01-16 | 2005-01-14 | Ridge-belt grading apparatus. |
BRPI0506863-0A BRPI0506863B1 (en) | 2004-01-16 | 2005-01-14 | Apparatus for grading irregularly shaped foods, such as fish or shrimp, by size |
CA2595325A CA2595325C (en) | 2004-01-16 | 2005-01-14 | Ridge belt grading apparatus |
DK05703253T DK1718422T3 (en) | 2004-01-16 | 2005-01-14 | Sorting device with back strap |
US10/586,159 US8162150B2 (en) | 2004-01-16 | 2005-01-14 | Seafood grading apparatus |
DE602005001270T DE602005001270T2 (en) | 2004-01-16 | 2005-01-14 | RIBS BAND SORTING DEVICE |
JP2006548590A JP4740154B2 (en) | 2004-01-16 | 2005-01-14 | Ridge belt sorting device |
EP05703253A EP1718422B1 (en) | 2004-01-16 | 2005-01-14 | Ridge-belt grading apparatus |
NO20063688A NO331121B1 (en) | 2004-01-16 | 2006-08-16 | A screening device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IS7117 | 2004-01-16 | ||
IS7117 | 2004-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005068094A1 true WO2005068094A1 (en) | 2005-07-28 |
Family
ID=34779417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IS2005/000002 WO2005068094A1 (en) | 2004-01-16 | 2005-01-14 | Ridge-belt grading apparatus |
Country Status (14)
Country | Link |
---|---|
US (1) | US8162150B2 (en) |
EP (1) | EP1718422B1 (en) |
JP (1) | JP4740154B2 (en) |
CN (1) | CN100512985C (en) |
AT (1) | ATE363345T1 (en) |
BR (1) | BRPI0506863B1 (en) |
CA (1) | CA2595325C (en) |
DE (1) | DE602005001270T2 (en) |
DK (1) | DK1718422T3 (en) |
ES (1) | ES2288293T3 (en) |
MX (1) | MXPA06008064A (en) |
NO (1) | NO331121B1 (en) |
RU (1) | RU2358816C2 (en) |
WO (1) | WO2005068094A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11203042B2 (en) | 2016-09-28 | 2021-12-21 | Style Ehf. | Adjustment mechanism for grading systems |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8784918B2 (en) * | 2011-04-19 | 2014-07-22 | Lawrence Equipment, Inc. | Systems and methods for processing comestibles |
EP3169452B1 (en) * | 2014-07-16 | 2019-03-27 | Style EHF | Adjustment mechanism for grading systems |
CN106733666A (en) * | 2016-12-20 | 2017-05-31 | 山东省农业机械科学研究院 | One fruit scale ovum seperator |
RU2657912C1 (en) * | 2017-09-19 | 2018-06-18 | Федеральное государственное бюджетное учреждение науки Институт физико-технических проблем Севера им. В.П. Ларионова СО РАН | Method of loose material grains sizing |
JP6969719B2 (en) * | 2018-12-25 | 2021-11-24 | 東杜シーテック株式会社 | Estimator and estimation method |
RU193993U1 (en) * | 2019-07-19 | 2019-11-22 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Петрозаводский государственный университет" | DEVICE FOR SORTING FISH |
WO2024155263A2 (en) * | 2023-01-17 | 2024-07-25 | Arde Maki̇ne Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ | Fish head cutting-off belt with modular structure |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2776746A (en) * | 1951-10-06 | 1957-01-08 | Karl C Envoldsen | Shrimp grader |
FR1532758A (en) * | 1966-07-21 | 1968-07-12 | Sorting device for agricultural and horticultural products according to their size | |
US4723660A (en) * | 1986-01-03 | 1988-02-09 | Sjoeberg Sven E | Apparatus for advancing and sorting objects |
US6065607A (en) * | 1995-06-09 | 2000-05-23 | Style - R.M. Magnusson | Grading machine and equipment |
US6321914B1 (en) * | 1997-04-28 | 2001-11-27 | Style-R. M. Magnusson | Apparatus for grading objects such as fish |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5278697U (en) * | 1975-12-05 | 1977-06-11 | ||
JPS5278697A (en) * | 1975-12-25 | 1977-07-02 | Mitsui Toatsu Chem Inc | Oxidation of nitrogen monoxide |
JPH0424477A (en) * | 1990-05-16 | 1992-01-28 | Hitachi Ltd | Branch pipe for multi-package air conditioner |
JPH0440469Y2 (en) * | 1990-06-19 | 1992-09-22 | ||
JPH09205981A (en) * | 1996-02-03 | 1997-08-12 | Zenkoku Makiami Gyogyo Kyokai | Method for sorting kind of fish |
-
2005
- 2005-01-14 US US10/586,159 patent/US8162150B2/en active Active
- 2005-01-14 DE DE602005001270T patent/DE602005001270T2/en active Active
- 2005-01-14 BR BRPI0506863-0A patent/BRPI0506863B1/en not_active IP Right Cessation
- 2005-01-14 EP EP05703253A patent/EP1718422B1/en active Active
- 2005-01-14 RU RU2006128619/03A patent/RU2358816C2/en active
- 2005-01-14 ES ES05703253T patent/ES2288293T3/en active Active
- 2005-01-14 JP JP2006548590A patent/JP4740154B2/en not_active Expired - Fee Related
- 2005-01-14 CN CNB2005800063527A patent/CN100512985C/en active Active
- 2005-01-14 DK DK05703253T patent/DK1718422T3/en active
- 2005-01-14 AT AT05703253T patent/ATE363345T1/en not_active IP Right Cessation
- 2005-01-14 WO PCT/IS2005/000002 patent/WO2005068094A1/en active Application Filing
- 2005-01-14 CA CA2595325A patent/CA2595325C/en active Active
- 2005-01-14 MX MXPA06008064A patent/MXPA06008064A/en active IP Right Grant
-
2006
- 2006-08-16 NO NO20063688A patent/NO331121B1/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2776746A (en) * | 1951-10-06 | 1957-01-08 | Karl C Envoldsen | Shrimp grader |
FR1532758A (en) * | 1966-07-21 | 1968-07-12 | Sorting device for agricultural and horticultural products according to their size | |
US4723660A (en) * | 1986-01-03 | 1988-02-09 | Sjoeberg Sven E | Apparatus for advancing and sorting objects |
US6065607A (en) * | 1995-06-09 | 2000-05-23 | Style - R.M. Magnusson | Grading machine and equipment |
US6321914B1 (en) * | 1997-04-28 | 2001-11-27 | Style-R. M. Magnusson | Apparatus for grading objects such as fish |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11203042B2 (en) | 2016-09-28 | 2021-12-21 | Style Ehf. | Adjustment mechanism for grading systems |
Also Published As
Publication number | Publication date |
---|---|
RU2006128619A (en) | 2008-02-27 |
JP2007519511A (en) | 2007-07-19 |
US8162150B2 (en) | 2012-04-24 |
MXPA06008064A (en) | 2007-04-19 |
CA2595325C (en) | 2011-10-25 |
BRPI0506863A (en) | 2007-05-29 |
BRPI0506863B1 (en) | 2014-02-11 |
CN100512985C (en) | 2009-07-15 |
JP4740154B2 (en) | 2011-08-03 |
US20080283453A1 (en) | 2008-11-20 |
NO20063688L (en) | 2006-10-16 |
CA2595325A1 (en) | 2006-07-28 |
ES2288293T3 (en) | 2008-01-01 |
DK1718422T3 (en) | 2007-10-01 |
EP1718422B1 (en) | 2007-05-30 |
EP1718422A1 (en) | 2006-11-08 |
NO331121B1 (en) | 2011-10-10 |
DE602005001270D1 (en) | 2007-07-12 |
RU2358816C2 (en) | 2009-06-20 |
ATE363345T1 (en) | 2007-06-15 |
DE602005001270T2 (en) | 2008-01-24 |
CN1925930A (en) | 2007-03-07 |
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