CN1257573A - Method and apparatus for surface freezing - Google Patents
Method and apparatus for surface freezing Download PDFInfo
- Publication number
- CN1257573A CN1257573A CN 98805484 CN98805484A CN1257573A CN 1257573 A CN1257573 A CN 1257573A CN 98805484 CN98805484 CN 98805484 CN 98805484 A CN98805484 A CN 98805484A CN 1257573 A CN1257573 A CN 1257573A
- Authority
- CN
- China
- Prior art keywords
- pore
- conveyer belt
- food product
- cold air
- cover tape
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D13/00—Stationary devices, e.g. cold-rooms
- F25D13/06—Stationary devices, e.g. cold-rooms with conveyors carrying articles to be cooled through the cooling space
- F25D13/067—Stationary devices, e.g. cold-rooms with conveyors carrying articles to be cooled through the cooling space with circulation of gaseous cooling fluid
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/361—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus, with or without shaping, e.g. in form of powder, granules, or flakes
- A23L3/362—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus, with or without shaping, e.g. in form of powder, granules, or flakes with packages or with shaping in form of blocks or portions
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/37—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals
- A23L3/375—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals with direct contact between the food and the chemical, e.g. liquid nitrogen, at cryogenic temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/04—Charging, supporting, and discharging the articles to be cooled by conveyors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Thermal Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
- Confectionery (AREA)
- Belt Conveyors (AREA)
- Chain Conveyers (AREA)
Abstract
A method and apparatus for freezing a surface layer of food product (6), placed on a non-foraminous conveyor belt (7) wherein cold air in the form of jets is blown towards the underside of the non-foraminous conveyor belt. The apparatus for carrying out the method comprises, in addition to the non-foraminous conveyor belt (7), a plurality of stationary nozzles (14) for producing jets towards the underside of the non-foraminous conveyor belt in an area which extends over the width of the non-foraminous conveyor belt.
Description
The present invention relates to the freezing method and apparatus of food product superficial layer.
When not having the product of complete solid-state structure, product is easy to cast on the freezing thereon base plate of product when freezing.If when the shape of base plate was different from the shape that product requires when its final freezing shape, this was disadvantageous.Also exist product to be frozen in risk on the base plate, this can cause the product defectiveness on the one hand, and on the other hand, the product residue of staying on the base plate need be removed before reusing base plate.
Know,, freezingly just can avoid fast if base plate has very low temperature.But this is the method for a suitable consumes energy, because it requires liquid nitrogen or analog.But substituting is used paper tinsel between base plate and product, and at this moment, product does not need so low temperature.But hot conduction will be relatively poor relatively, particularly, not be so soft as fruit product, so that its most of lower surface can be depressed into paper tinsel with base plate and directly contacts.
The objective of the invention is to propose a kind of method, guarantee that simultaneously the superficial layer on the most of lower surface of product is freezing with Energy Efficient mode frozen food product superficial layer.
According to the present invention, this purpose can obtain by the method and apparatus with exclusive characteristics, and they can correspondingly be clear that by appended independent solution claim and device claim.Various embodiment will appear in the appended claims.
In the method for being invented, food product is placed on the non-pore conveyer belt, is blown to the downside of conveyer belt and shape is the cold air of jet.This causes non-pore conveyer belt from the highly effective cooling of its downside, thereby reaches thin layer freezing rapidly of the most close product lower surface, and described lower surface directly is resisted against on the upside of non-pore conveyer belt.
Make food product directly bear cold jet and just know before being with frozen food product, but many products have and be entirely or part is loose packing, they just may not bear such jet certainly.But adopt non-pore conveyer belt, if jet is guided the downside of conveyer belt into for it, and it be not make too thickly or thermal conductivity too poor, also may be at least on the surface of direct contact conveyer belt freezing such food product.
In recommendatory embodiment, non-pore conveyer belt comprises the non-pore paper tinsel band that is supported by the pore supporting strap.When cold jet blowed to the downside of this conveyer belt, they were by the pore supporting strap, even this surface is not among peaceful whole tight contact that yet the paper tinsel band can be pressed into the most of downside of food product.Like this, excellent heat conduction just can reach, and the bottom of food product just can be transferred to freezing state rapidly.
In an alternative embodiment, conveyer belt comprises the single metal with good heat-conductivity or the band of certain other material, at this moment also can reach excellent heat conduction, thereby the bottom of food product can be transferred to freezing state rapidly.
Cold air preferably blows to the downside of the non-pore conveyer belt in the FX with pattern, this FX stretches on the width of non-pore conveyer belt, and simultaneously, non-pore conveyer belt moves past FX continuously.
In one embodiment, also used and put non-pore cover tape, it is placed on the top of the food product on the non-pore conveyer belt, and contact with it, puts non-pore cover tape on this and moves abreast herein.At this moment, cold air also blows to the upside of putting cover tape with pattern.As a result, the whole superficial layer of food product, or its major part can be freezing effectively is promptly with good heat conduction with carry out freezing at short notice.
For the device of realizing institute's inventive method comprises non-pore conveyer belt and plurality of fixed nozzle, these fixed nozzles are used for cold air is blowed to the downside of the non-pore conveyer belt in a zone with pattern, and this zone is stretched on the width of non-pore conveyer belt.
In recommendatory embodiment, non-pore conveyer belt comprises non-pore paper tinsel band, and this paper tinsel band is supported by the pore supporting strap.
Alternately, non-pore conveyer belt can be made of the non-pore band of metal single, that have good heat-conductivity or certain other material.
In one embodiment, device also comprises and puts non-pore cover tape, and the top that it is arranged in non-pore conveyer belt is placed on food product on the described conveyer belt with covering; And some additional fixed nozzles, being used for shape is that the cold air of jet blows to the upside of putting non-pore cover tape.
On put the preferably non-pore paper tinsel of cover tape band, but it also can be made of the band of the metal with good heat-conductivity or certain other material.
Referring now to accompanying drawing embodiments of the invention are carried out comparatively detailed explanation, this figure is the diagrammatic side view of food product refrigerating plant.
More specifically, this figure has showed freezer unit 1, and it has supply port 2 and delivery outlet 3.Freezer unit 1 can be to use that class freezer unit of pore conveyer belt 4, the food product that desire is freezing moves to delivery outlet 3 from supply port 2 along the helical path for it, cold air forces around food product and blows simultaneously, thereby when arriving the delivery outlet 3 of freezer unit 1, product is freezing fully.
According to the present invention, device 5 is used as the precooling device, is used for producing frozen coating at food product 6 bottoms at least before on the pore conveyer belt 4 that food product 6 is positioned over freezer unit 1.
Device 5 comprises pore supporting strap 7, and it is pressed circular path and moves on two deflection roller bearings 8 and 9.Deposit cylinder 10 comprises paper tinsel band 11, and it extends on the up stroke 12 of supporting strap 7 from deposit cylinder 10 and receives cylinder 13.
Under supporting strap 7, arranging several fixed nozzles 14 thereon in the stroke 12.Stretch on the whole width of supporting strap 7 substantially in the zone that nozzle 14 is distributed, and the width of described width and paper tinsel band 11 is basic identical, or greater than the width of paper tinsel band 11.Nozzle 14 constitutes the gas outlet of pipelines 15, then it is again by fan 16 input high pressure cold air down, thus nozzle 14 jetting streams, promptly air-spray has so speed, and consequently near the air layer fragmentation of paper tinsel band 11, this has improved hot conduction widely.
Whole device is installed in the insulated case 17, and it also comprises cooling tube group 18, and the suction side of fan 16 is connected therewith.
As shown in phantom in FIG., the second paper tinsel band 19 can lead to reception cylinder 21 from deposit cylinder 20 with paralleling with supporting strap 7 and paper tinsel band 11 substantially.Can be made into along a paths action by resilient suspension deflection roller bearing 22 and 23, the second paper tinsel bands 19, the contact of this path is at the top surface along the food product 6 that transmits on the paper tinsel band 11 of up stroke 12 and the supporting strap 7.
In the foregoing description of the device that the present invention proposes, supporting strap 7 and paper tinsel band 11 constitute non-pore conveyer belt, and it supports food product 6, and the cold air jet that flows out from nozzle 14 then blows to its downside in up stroke 12.In an alternative embodiment, the non-pore band of metal or certain other material is alternative is with 7 and be with 11, relies on itself just to constitute non-pore conveyer belt.
In the foregoing description of apparatus of the present invention, paper tinsel band 19 forms non-pore cover tape in the same manner, and in an alternative embodiment, it can be to have the metal of thermal conductive resin or the band of certain other material.
Claims (10)
1. a method that is used for the superficial layer of frozen food product (6) is characterized in that, food product (6) is placed on the non-pore conveyer belt (7,11), and the cold air of pattern blows to the downside of non-pore conveyer belt.
2. method as claimed in claim 1 is characterized in that, the cold air of described pattern blows to the downside of the non-pore conveyer belt (7,11) that is positioned at FX, and this zone is stretched on the width of non-pore conveyer belt, and non-pore conveyer belt moves past FX continuously.
3. as the method for claim 1 or 2, it is characterized in that, be positioned over non-pore conveyer belt (7,11) top on put non-pore cover tape (19) and move in parallelly, the cold air of pattern blows to the upside of putting non-pore cover tape.
4. a device that is used for the superficial layer of frozen food product (6) is characterized in that; Non-pore conveyer belt (7,11) and plurality of fixed nozzle (14), these fixed nozzles (14) are used for cold air is blowed to the downside of the non-pore conveyer belt in a zone with pattern, and this zone is stretched on the width of non-pore conveyer belt.
5. device as claimed in claim 4 is characterized in that, non-pore conveyer belt (7,11) comprises non-pore paper tinsel band (11), and this paper tinsel band (11) is supported by pore supporting strap (7).
6. device as claimed in claim 4 is characterized in that, non-pore conveyer belt is single, as the to have good heat-conductivity metal or the non-pore band of certain other material.
7. as the device of each claim among the claim 4-6, it is characterized in that putting non-pore cover tape (19), it is arranged in the top of non-pore conveyer belt (7,11), is placed on food product (6) on the described conveyer belt in order to covering; And some additional fixed nozzles (24), be used for the cold air of pattern is blowed to the upside of putting non-pore cover tape.
8. device as claimed in claim 7 is characterized in that, on to put non-pore cover tape (19) be non-pore paper tinsel band.
9. device as claimed in claim 7 is characterized in that, on to put non-pore cover tape be a kind of the have metal of good heat-conductivity or band of certain other material.
10. as the device of each claim among the claim 4-10, it is characterized in that it is configured for the precooling device (5) of the freezer unit (1) of complete frozen food product (6).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9701550A SE9701550L (en) | 1997-04-25 | 1997-04-25 | Methods and apparatus for surface freezing |
SE97015507 | 1997-04-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1257573A true CN1257573A (en) | 2000-06-21 |
CN1140754C CN1140754C (en) | 2004-03-03 |
Family
ID=20406716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB988054841A Expired - Fee Related CN1140754C (en) | 1997-04-25 | 1998-04-23 | Method and apparatus for surface freezing |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0977970A1 (en) |
JP (1) | JP2001527633A (en) |
CN (1) | CN1140754C (en) |
AU (1) | AU728000B2 (en) |
CA (1) | CA2288909C (en) |
SE (1) | SE9701550L (en) |
WO (1) | WO1998049505A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1295471C (en) * | 2005-01-28 | 2007-01-17 | 南通冷冻设备有限公司 | Freezing device |
CN106461307A (en) * | 2014-06-13 | 2017-02-22 | 卓缤科技有限公司 | Temperature treatment apparatus and method for solidifying portions of fluid |
CN109140861A (en) * | 2018-08-06 | 2019-01-04 | 湖州日晨生态农业开发有限公司 | A kind of fresh-water fishes quick-freezing plant |
WO2019104783A1 (en) * | 2017-12-01 | 2019-06-06 | 上海海洋大学 | Circular jet nozzle structure of impact instant freezer |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2762969B3 (en) * | 1997-05-07 | 1999-06-25 | Roger Dew | CONTINUOUS FREEZING ENCLOSURE WITH SUPERIMPOSED REFRIGERATED TABLES |
CN1105501C (en) * | 1998-08-10 | 2003-04-16 | 普莱克斯技术有限公司 | Impingement cooler |
SE515811C2 (en) * | 1999-01-20 | 2001-10-15 | Frigoscandia Equipment Ab | Apparatus for gas treatment of products comprising a high pressure chamber |
WO2001004554A1 (en) * | 1999-07-07 | 2001-01-18 | Roger Dew | Quick-freeze tunnel for food products with non-continuous driving film |
US6334330B2 (en) | 1999-07-26 | 2002-01-01 | Praxair, Inc. | Impingement cooler |
FR2808080B1 (en) * | 2000-04-25 | 2003-04-25 | Paul Tondeux | DEVICE FOR OPTIMIZING THE CONTINUOUS FREEZING OF BULK PRODUCTS, INDIVIDUALLY, AN INSTALLATION EQUIPPED WITH SAID DEVICE AND APPLICATION OF SAID DEVICE |
JP2003061633A (en) * | 2001-08-30 | 2003-03-04 | Ip:Kk | Food freezer |
US6557367B1 (en) | 2002-03-28 | 2003-05-06 | Praxair Technology, Inc. | Impingement cooler with improved coolant recycle |
CN100453935C (en) * | 2007-06-27 | 2009-01-21 | 浙江海洋学院 | Revolving drum type quick-freeze device |
KR101693634B1 (en) * | 2010-06-30 | 2017-01-06 | 마에카와 매뉴팩쳐링 캄파니 리미티드 | Cold air injection mechanism |
CN107821910A (en) * | 2017-12-01 | 2018-03-23 | 上海海洋大学 | A kind of elongate strip funnel-form fluidic nozzle configurations |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE424802B (en) * | 1977-02-18 | 1982-08-16 | Frigoscandia Contracting Ab | PROCEDURE FOR DEFINING DEEP-FURNISHED GOODS AND DEVICE FOR CARRYING OUT THE PROCEDURE |
GB2141813B (en) * | 1983-05-21 | 1987-04-15 | Star Refrigeration | Cooling apparatus |
US5543167A (en) * | 1995-01-05 | 1996-08-06 | Fujitetsumo Co., Ltd. | Cooked rice freezing method and apparatus |
US5551251A (en) * | 1995-02-08 | 1996-09-03 | York Food Systems | Impingement freezer |
-
1997
- 1997-04-25 SE SE9701550A patent/SE9701550L/en unknown
-
1998
- 1998-04-23 CA CA002288909A patent/CA2288909C/en not_active Expired - Fee Related
- 1998-04-23 EP EP98920774A patent/EP0977970A1/en not_active Ceased
- 1998-04-23 AU AU73538/98A patent/AU728000B2/en not_active Ceased
- 1998-04-23 JP JP54688098A patent/JP2001527633A/en not_active Ceased
- 1998-04-23 WO PCT/SE1998/000735 patent/WO1998049505A1/en not_active Application Discontinuation
- 1998-04-23 CN CNB988054841A patent/CN1140754C/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1295471C (en) * | 2005-01-28 | 2007-01-17 | 南通冷冻设备有限公司 | Freezing device |
CN106461307A (en) * | 2014-06-13 | 2017-02-22 | 卓缤科技有限公司 | Temperature treatment apparatus and method for solidifying portions of fluid |
US11026440B2 (en) | 2014-06-13 | 2021-06-08 | John Bean Technologies Ab | Temperature treatment apparatus and method for solidifying portions of fluid |
WO2019104783A1 (en) * | 2017-12-01 | 2019-06-06 | 上海海洋大学 | Circular jet nozzle structure of impact instant freezer |
CN109140861A (en) * | 2018-08-06 | 2019-01-04 | 湖州日晨生态农业开发有限公司 | A kind of fresh-water fishes quick-freezing plant |
Also Published As
Publication number | Publication date |
---|---|
AU728000B2 (en) | 2001-01-04 |
WO1998049505A1 (en) | 1998-11-05 |
CA2288909C (en) | 2007-01-23 |
SE506959C2 (en) | 1998-03-09 |
SE9701550D0 (en) | 1997-04-25 |
CA2288909A1 (en) | 1998-11-05 |
EP0977970A1 (en) | 2000-02-09 |
CN1140754C (en) | 2004-03-03 |
AU7353898A (en) | 1998-11-24 |
JP2001527633A (en) | 2001-12-25 |
SE9701550L (en) | 1998-03-09 |
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GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |