DK157412B - DEVICE FOR FREEZING FOOD PRODUCTS - Google Patents
DEVICE FOR FREEZING FOOD PRODUCTS Download PDFInfo
- Publication number
- DK157412B DK157412B DK022174A DK22174A DK157412B DK 157412 B DK157412 B DK 157412B DK 022174 A DK022174 A DK 022174A DK 22174 A DK22174 A DK 22174A DK 157412 B DK157412 B DK 157412B
- Authority
- DK
- Denmark
- Prior art keywords
- chamber
- vault
- air
- coil
- conveyor
- Prior art date
Links
- 235000013305 food Nutrition 0.000 title claims description 12
- 238000007710 freezing Methods 0.000 title claims description 12
- 230000008014 freezing Effects 0.000 title claims description 12
- 238000001816 cooling Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 2
- 239000003570 air Substances 0.000 description 35
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 235000015243 ice cream Nutrition 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010868 animal carcass Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000020004 porter Nutrition 0.000 description 1
- 235000021058 soft food Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
Classifications
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- 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
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
- A23G7/00—Other apparatus or process specially adapted for the chocolate or confectionery industry
- A23G7/02—Cooling or drying apparatus
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
- A23G9/00—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor
- A23G9/04—Production of frozen sweets, e.g. ice-cream
- A23G9/22—Details, component parts or accessories of apparatus insofar as not peculiar to a single one of the preceding groups
- A23G9/26—Details, component parts or accessories of apparatus insofar as not peculiar to a single one of the preceding groups for producing frozen sweets on sticks
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Confectionery (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
Description
DK 157412 BDK 157412 B
Den foreliggende opfindelse angår et apparat til frysning af fødevarer og omfattende en hvælving, kontinuerlige transportørorganer til transport af fødevareprodukter ind i, gennem og ud af hvælvingen, hvilke transportørorganer 5 bevæger sig primært i mindst ét netværk langs i det væsentlige parallelle planer inden i hvælvingen, en kølespole og organer, der er indrettet til at cirkulere luft i varmeveksling med spolen og over fødevareprodukterne i en retning, der er i det væsentlige parallel med et plan vinkelret på 10 de primære bevægelsesplaner for transportørorganerne inden i hvælvingen.The present invention relates to an apparatus for freezing food and comprising a vault, continuous conveyor means for transporting food products into, through and out of the vault, which conveyor means 5 moves primarily in at least one network along substantially parallel planes within the vault, a cooling coil and means adapted to circulate air in heat exchange with the coil and over the food products in a direction substantially parallel to a plane perpendicular to the primary planes of movement of the conveyor means within the vault.
Fra US patentskrift nr. 3 769 807 kendes et apparat til køling af dyrekroppe af lignende art, hvor afkølingen dog ikke sker ved hjælp af en kølespole eller køleslange 15 med ved cirkulation af fordampet carbondioxid gennem et kølekammer, idet carbondioxiden recirkuleres under komprimering, køling og fortætning i et særligt afsnit af kammeret. Dyrekroppene føres ophængt i kroge på en transportkæde fra et åbent forrum ind i og ud af kølekammeret gennem åbninger, 20 der er dækkede af bevægelige jalousier.U.S. Patent No. 3,769,807 discloses an apparatus for cooling animal carcasses of a similar nature, however, the cooling is not effected by means of a cooling coil or hose 15, by circulating evaporated carbon dioxide through a cooling chamber, the carbon dioxide being recycled during compression, cooling and densification in a special section of the chamber. The animal bodies are guided in hooks on a transport chain from an open front chamber into and out of the cooling chamber through openings 20 covered by movable shutters.
US patentskrifterne nr. 2 887 855 og nr. 2 925 052 omhandler begge et apparat til frysning af ispinde i bægre, som føres af transport ørorganer, der bevæger sig i et dobbelt netværk inden i en kølekanal, der gennemblæses med kold 25 luft og er af en kompliceret udformning, som det bedst fremgår af det førstnævnte af de to skrifter, og som omfatter et overføringsafsnit med en indgangs- og en udgangsåbning for transportørorganerne, der mellem disse bevæger sig udenfor kølekanalen med henblik på fyldning af bægrene med is-30 creme m.v. De frosne ispinde udtages af bægrene inden i kølekanalen af en tværgående transportkæde, fra hvilken de afgives til en slisk.U.S. Patent Nos. 2,887,855 and No. 2,925,052 both disclose an apparatus for freezing ice sticks in jugs carried by transport ear members moving in a dual network within a cooling duct that is blown with cold 25 air and is of a complicated design, as best seen in the former of the two writings, comprising a transfer section with an inlet and an outlet opening for the conveyor means moving between the outside of the cooling duct for filling the cups with ice-cream 30 etc. The frozen ice pegs are taken out of the cups within the cooling duct by a transverse transport chain from which they are delivered to a chute.
Et problem ved disse kendte apparater er indtrængning af varm, fugtig omgivelsesluft i kølehvælvingen eller -ka-35 nalen gennem de åbninger, gennem hvilke transportørorganerne er ført ind i og ud af denne. Denne varme, fugtige luftA problem with these known apparatus is the penetration of hot, humid ambient air into the cooling vault or duct through the openings through which the conveyor means are introduced into and out of it. This warm, humid air
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2 giver anledning til is- eller rimaflejringer inden i kølehvælvingen, navnlig aflejringer på kølespolerne eller -slangerne inden i denne, hvilket nødvendiggør hyppig afbrydelse af apparaternes drift med henblik på afrimning, da disse 5 aflejringer bl.a. i høj grad nedsætter varmeoverførsien fra cirkulationsluften til kølespolerne eller -slangerne og dermed apparatets køle- eller frysekapacitet, ligesom de kan give anledning til driftsvanskeligheder for apparatets bevægelige dele.2 gives rise to ice or frost deposits within the cooling vault, in particular deposits on the cooling coils or hoses within it, which necessitates frequent interruption of the operation of the appliances for defrosting. greatly reduces the heat transfer from the circulating air to the cooling coils or hoses and hence the cooling or freezing capacity of the appliance, as well as may cause operating difficulties for the moving parts of the appliance.
10 Formålet for opfindelsen er at modvirke dette problem og at tilvejebringe et apparat af den indledningsvis nævnte art, hvor man i væsentlig grad undgår denne indtrængning af varm, fugtig omgivelsesluft i hvælvingen gennem de nævnte åbninger og dermed de heraf forårsagede driftsmæssige ulem-15 per.The object of the invention is to counteract this problem and to provide an apparatus of the kind mentioned above, which substantially avoids this penetration of hot, humid ambient air into the vault through said openings and thus the operating disadvantages thereof.
Dette opnås ifølge opfindelsen ved, at et skot inden i hvælvingen danner et første og et andet kammer inden i hvælvingen, idet fødevareprodukterne passerer ind i og ud af hvælvingen gennem det første kammer, og idet det andet 20 kammer indeholder organerne til cirkulation af luft, spolen og netværkerne, og hvor skottet er placeret i det væsentlige vinkelret på de primære bevægelsesplaner for transportørorganerne og parallelt med luftcirkulationsretningen.This is achieved according to the invention in that a bulkhead within the vault forms a first and a second chamber within the vault, the food products passing into and out of the vault through the first chamber, and the second chamber containing the means for circulating air. the coil and the networks, and where the bulkhead is located substantially perpendicular to the primary planes of movement of the conveyor means and parallel to the direction of air circulation.
Det første kammer eller indgangskammeret bevirker 25 herved ikke blot en formindskelse af luftudskiftningen med den omgivende atmosfære, men det virker også som et affugt-ningsrum, idet det udsætter varm, fugtig luft, som indføres deri, for den deri opfangede kolde luft, således at fugten slår sig ned som rim i det første kammer, inden luften even-30 tuelt føres videre ind i det andet kammer, hvor kølespolerne og luftcirkulationsorganerne og netværkene er anbragt. Placeringen af skottet i det væsentlige parallelt med luftcirkulationsretningen i det andet kammer bevirker, at luften i det første kammer bliver i hovedsagen stillestående og kun 35 i ringe omfang medføres af transportørorganerne, idet der ikke forekommer nogen væsentlig af den tvangsmæssige luft- 3The first chamber or the inlet chamber thereby not only reduces the exchange of air with the ambient atmosphere, but it also acts as a dehumidification room, exposing hot, moist air introduced therein to the cold air trapped therein, so that the moisture settles as rhyme in the first chamber, before the air is eventually passed into the second chamber where the cooling coils and air circulation means and networks are arranged. The location of the bulkhead substantially parallel to the direction of air circulation in the second chamber causes the air in the first chamber to remain substantially stationary and enters only to a small extent by the conveyor means, with no substantial of the forced air being present.
DK 157 412 BDK 157 412 B
cirkulation i det andet kammer forårsaget luftudveksling mellem de to kamre.circulation in the second chamber caused air exchange between the two chambers.
Foretrukne udførelsesformer for og træk hos apparatet ifølge opfindelsen er angivet i de uselvstændige krav.Preferred embodiments and features of the apparatus of the invention are set forth in the dependent claims.
5 Opfindelsen beskrives i det følgende nærmere under henvisning til tegningen, på hvilken fig. 1 viser et fryseapparat ifølge den foreliggende opfindelse i perspektiv, fig. 2 et vandret snit gennem et fryseaparat ifølge 10 opfindelsen, fig. 3 et lodret tværsnit gennem en frysehvælving i apparatet ifølge opfindelsen, set forfra, fig. 4 et lodret længdesnit gennem et fryseapparat ifølge den foreliggende opfindelse, set fra højre side, 15 fig. 5 et andet lodret tværsnit gennem frysehvælvingen i apparatet ifølge opfindelsen, set forfra, og fig. 6 i større målestok et snit gennem en del af transportørunderstøtningsstellet i apparatet.The invention will now be described in more detail with reference to the drawing, in which: FIG. 1 is a perspective view of a freezer according to the present invention; FIG. 2 is a horizontal section through a freezer according to the invention; FIG. 3 is a front elevational cross-section through a freezer vault in the apparatus according to the invention; FIG. 4 is a vertical longitudinal section through a freezer according to the present invention, seen from the right side; FIG. 5 is a front elevational view of another vertical cross-section through the freezer arch of the apparatus according to the invention; and FIG. 6 is an enlarged section through a portion of the carrier support frame in the apparatus.
Fig. 1 viser den ydre udformning af et apparat ifølge 20 opfindelsen til frysning af fødevarer. En endeløs transportør 4 fører fødevarer 24 på en række plader 26 gennem en frysehvælving. Et arbejdsbord 6 understøtter transportøren 4, et drivkædehjul 8 og et mellemkædehjul 10. Drivkædehjulet 8 er monteret på en aksel, som er forbundet med en ikke vist 25 drivmotor inde i arbejdsbordet 6. I det område, som er omsluttet af den ydre sløjfe af transportøren og hvælvingen 2, er der anbragt iscremeekstruderingsorganer 12 og 14, som også er fastgjort til arbejdsbordet 6. Transportøren 4 opsamler, efter at den er passeret rundt om drivkædehjulet 8, 3 0 bløde fødevarer ved stationerne 12 eller 14. Der kan anvendes et pindindføringsorgan 16 til indføring af holdepinde i produkterne, når de passerer denne station. Efter afsætningen af produkterne på pladerne 26 på transportøren 4 føres de ind i frysehvælvingen gennem et gennemgangsvindue 18. Efter, 35 at produkterne er frosset til fast tilstand inde i frysehvælvingen 2, føres de ud gennem et gennemgangsvindue 20 ogFIG. 1 shows the external configuration of an apparatus according to the invention for freezing food. An endless conveyor 4 passes food 24 on a series of plates 26 through a freezer vault. A workbench 6 supports the conveyor 4, a drive sprocket 8 and an intermediate sprocket 10. The drive sprocket 8 is mounted on a shaft which is connected to a drive motor (not shown) inside the workbench 6. In the area enclosed by the outer loop of the conveyor and the vault 2, ice cream extrusion means 12 and 14 are also attached to the workbench 6. The conveyor 4, after passing around the drive sprocket 8, 30 soft foods at the stations 12 or 14. A stick insertion means 16 can be used. for introducing holding pins into the products as they pass this station. After depositing the products on the plates 26 of the conveyor 4, they are introduced into the freezer vault through a through window 18. After the products have been frozen to solid state within the freezer vault 2, they are discharged through a through window 20 and
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4 fjernes dernæst fra transportøren ved hjælp af et optageapparat 22.4 is then removed from the conveyor by means of a recording apparatus 22.
Transportørpladerne 26 er enkeltvis og særskilt monteret i række på en transportørkæde 86, se fig. 7, og kan 5 . understøtte enten fødevarer 24 eller kegleformede iscremenyheder, som kan indføres i understøtningshuller 28.The conveyor plates 26 are individually and separately mounted in a row on a conveyor chain 86, see fig. 7, and can 5. support either food 24 or cone-shaped ice cream units which can be inserted into support holes 28.
Som vist i fig. 2 er frysehvælvingen 2 opdelt i et første kammer eller indgangskammer 30 og et andet kammer 32 ved hjælp af et skot 34. Den ydre sløjfe 60 af transpor-10 tøren 4 bevæger sig gennem skottet og passerer gennem vinduer 36 og 38. Inde i det andet kammer 32 passerer transportøren 4 omkring to spiralnetværk 40 og 42. Netværket 40 er det indgående netværk, og netværket 42 er det udgående netværk. Væggene i frysehvælvingen 2 er isoleret for at formindske 15 varmeoverførsien fra atmosfæren til hvælvingen. Der kan opnås adgang til hvælvingen 2' s indre gennem adgangsdøre 52, 54 og 56.As shown in FIG. 2, the freezer vault 2 is divided into a first chamber or entrance chamber 30 and a second chamber 32 by means of a bulkhead 34. The outer loop 60 of the conveyor 4 moves through the bulkhead and passes through windows 36 and 38. Inside the second chamber 32 passes the conveyor 4 around two spiral networks 40 and 42. The network 40 is the inbound network and the network 42 is the outbound network. The walls of the freezer vault 2 are insulated to reduce the heat transfer from the atmosphere to the vault. The interior of the vault 2 can be accessed through access doors 52, 54 and 56.
Som vist i fig. 2 har det andet kammer 32 i hvælvingen 2 et rektangulært grundareal. Bevægelsesretningerne for 20 transportøren 4 i netværkene 40 og 42 flugter med den længste dimension af kammeret 32. Som vist i fig. 3 og 4 tilvejebringes luftstrømmen inde i dette kammer 32 af et sæt ventilatorer 66, som er anbragt over spiralnetværkene 40 og 42 og er placeret direkte ud for en kølespole 68. Disse 25 ventilatorer 66 strækker sig i hovedsagen langs hele længden af netværkene 40 og 42. Kølespolen 68 strækker sig også langs hele længden af netværkene 40 og 42. Udgangsarealet af ventilatorerne 66 og frontarealet af spolen 68 er i hovedsagen lige store. Luftstrømmen fra ventilatorerne 66 rettes 30 ind i spolen 68, hvor den afkøles og efter passage gennem denne spole afbøjes af et første sæt vendeblade 70, hvorefter den fortsætter nedad gennem kammeret, indtil den møder et andet sæt vendeblade 72, hvor den afbøjes til vandret retning, så at den strømmer hen over transportøren 4's netværk 35 42 og 40. Herefter passerer der kold luft helt gennem trans portøranlægget inde i kammeret 32, idet den afbøjes i opad-As shown in FIG. 2, the second chamber 32 of the vault 2 has a rectangular base area. The directions of movement of the conveyor 4 in the networks 40 and 42 align with the longest dimension of the chamber 32. As shown in FIG. 3 and 4, the air flow within this chamber 32 is provided by a set of fans 66 located over the coil networks 40 and 42 and located directly next to a cooling coil 68. These 25 fans 66 extend substantially along the entire length of the networks 40 and 42. The cooling coil 68 also extends along the entire length of the networks 40 and 42. The output area of the fans 66 and the front area of the coil 68 are substantially equal. The air flow from the fans 66 is directed 30 into the coil 68 where it cools and, after passing through this coil, is deflected by a first set of turning blades 70, then continuing downwardly through the chamber until it meets a second set of turning blades 72, where it deflects to the horizontal direction. so that it flows over the network 35 42 and 40. of the conveyor 4, then cold air passes all the way through the conveyor system inside the chamber 32, deflecting it upwards.
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5 gående retning ved hjælp af et tredje sæt vendeblade 74 til indsugningsenden af ventilatorerne 66.5 in the direction of a third set of turning blades 74 to the intake end of the fans 66.
Under en maksimal spoletemperatur opnås der en mere effektiv frysning ved forøgelse af cirkulationsgraden for 5 luften gennem kammeret end ved yderligere formindskelse af spoletemperaturen og opretholdelse af samme cirkulationsgrad.Below a maximum coil temperature, more efficient freezing is achieved by increasing the circulation rate of the air through the chamber than by further decreasing the coil temperature and maintaining the same degree of circulation.
En forøgelse af luftstrømningshastigheden op over ca. 228--305 m pr. minut medfører imidlertid ikke nogen væsentlig forøgelse af køleeffektiviteten og danner således en øvre 10 grænse for den ønskelige lufthastighed inde i kammeret. Som vist i fig. 4 optager ventilatorerne 66 i hovedsagen hele området mellem den øverste del af transportørnetværket og kammeret 32's tag. Et sådant arrangement vil ved en vilkårlig given luftstrømningshastighed medføre den maksimale volume-15 triske strømningsgrad, som er mulig for dette kammer. Ved en given størrelse af frysekammeret og en given lufthastighed vil dette arrangement frembringe en volumetrisk strømning, som er forholdsvis større end den volumetriske strømning, som frembringes i kendte apparater, hvori ventilatorerne er 20 drejet 90°, så at de er orienteret i den anden retning, hvilket medfører et tværsnitsareal for strømningen, som er formindsket med forholdet mellem bredden og længden af kammeret, når kammerets højde er den samme. Ved den maksimale strømningshastighed på 228-305 m pr. minut kan kølespolen 25 68 holdes ved sin mest virksomme temperaturindstilling. Ved det foreliggende arrangement optræder der en fuldstændig cirkulation af den kolde luft gennem frysekammeret uden tab på grund af stilstand eller lagdeling af luften, når den cirkulerer.An increase in the air flow rate above approx. 228--305 m per however, the minute does not significantly increase the cooling efficiency, thus forming an upper limit of the desirable air velocity within the chamber. As shown in FIG. 4, the fans 66 generally occupy the entire area between the upper portion of the conveyor network and the chamber 32 roof. Such an arrangement will at any given air flow rate result in the maximum volume flow rate possible for this chamber. At a given size of the freezing chamber and a given air velocity, this arrangement will produce a volumetric flow which is relatively greater than the volumetric flow produced in known apparatus in which the fans are turned 90 ° so that they are oriented in the other direction. , which results in a cross-sectional area of the flow, which is reduced by the ratio of the width to the length of the chamber when the height of the chamber is the same. At the maximum flow rate of 228-305 m per per minute, the cooling coil 25 68 can be held at its most effective temperature setting. In the present arrangement, a complete circulation of the cold air through the freezing chamber occurs without loss due to downtime or stratification of the air as it circulates.
30 Detaljerne ved konstruktionen af transportøren er vist i fig. 6, hvor der er illustreret to modstående niveauer af transportørnetværket 42. I almindelighed er netværket dannet af en fast stålramme 92, der bærer en række understøtningsskinner 90, som danner et langstrakt spiralspor, 35 idet produktpladerne 26 bæres af en fleksibel rullekæde 86 over disse spor. Som vist er de rustfri stålunderstøtnings-30 The details of the construction of the conveyor are shown in FIG. 6, illustrating two opposing levels of the conveyor network 42. In general, the network is formed by a fixed steel frame 92 which carries a series of support rails 90 forming an elongated spiral groove 35, the product plates 26 being supported by a flexible roller chain 86 over these tracks. . As shown, the stainless steel support
DK 157412 BDK 157412 B
6 plader 26 fastgjort til rullekæden 86. Der er anvendt phenol-slidstrimler som understøtningsskinner 90 til at holde pladerne 26 i vandret plan. Det samme materiale er anvendt i form af en skinne 101 til føring af kæden i det lodrette 5 plan, og som virker i forbindelse med overfladen af skinnen 90. Understøtningsskinnerne 90 og afbøjningsorganer 94 og 96 er fastgjort til rammen 92 ved hjælp af konsoller 122. Afbøjningspladerne 94 er anbragt foran understøtningsrammen 92 regnet i luftstrømmens retning, og afbøjningspladerne 96 10 er anbragt bagved rammen regnet i denne retning. Som vist ved strømretningspilene er afbøjningspladerne 94 og 96 tilbøjelige til at fange luften og at bringe denne til, når den passerer tværs gennem transportøren, at strømme, så den rammer mod undersiden af understøtningspladerne 26. Afbøj-15 ningspladerne kan også danne hvirvler i strømningen, hvis den ikke allerede er turbulent. Disse afbøjningsplader forøger i væsentlig grad varmeoverførslen fra undersiden af pladen 26 og formindsker herved i væsentlig grad det tidsrum, som det tager at fryse produktet 24. Dette arrangement for-20 øger yderligere effektiviteten af det samlede fryseanlæg.6 plates 26 attached to roller chain 86. Phenol wear strips such as support rails 90 have been used to hold plates 26 in a horizontal plane. The same material is used in the form of a rail 101 for guiding the chain in the vertical plane, which acts in connection with the surface of the rail 90. The support rails 90 and deflection means 94 and 96 are secured to the frame 92 by means of brackets 122. The deflection plates 94 are positioned in front of the support frame 92 calculated in the direction of the air flow, and the deflection plates 96 10 are disposed behind the frame calculated in this direction. As shown by the flow direction arrows, deflection plates 94 and 96 tend to trap the air and cause it to flow as it passes transversely through the conveyor so that it impinges on the underside of support plates 26. Deflection plates may also form swirls in the flow. if it is not already turbulent. These deflection plates substantially increase the heat transfer from the underside of plate 26, thereby substantially reducing the time taken to freeze product 24. This arrangement further increases the efficiency of the total freezing system.
Som nævnt ovenfor strækker spolen 68 sig i hovedsagen langs hele længden af netværkene 40 og 42 og har et frontareal, der omtrent er lig med afgangsarealet for rækken af ventilatorer 66. Spolen 68 kan således være tyndere end 25 kendte spoler, hvorved den frembyder et mindre tværsnitsareal for strømningen med en proportionalt mindre strømningsmodstand. For spolen 68 kan der også i proportionalt højere grad accepteres rimopbygning og blokering, hvilket ellers hurtigt ville forringe anlæggets effektivitet.As mentioned above, the coil 68 extends substantially along the entire length of the networks 40 and 42 and has a front area approximately equal to the outlet area of the range of fans 66. The coil 68 may thus be thinner than 25 known coils, thereby providing a smaller cross-sectional area of the flow with a proportionally smaller flow resistance. For the coil 68, rhyme build-up and blockage can also be accepted proportionally to a greater extent, which would otherwise quickly degrade the system's efficiency.
30 Som vist i fig. 5 strækker skottet 34 sig fra væg til væg og fra gulv til loft i hvælvingen 2. De eneste åbninger mellem det første kammer eller indgangskammeret 30 og det andet kammer eller frysekammeret 32 er gennemgangsvinduerne 36 og 38, som er tilvejebragt af hensyn til trans-35 portøren 4. Det strømningsmønster, som frembringes af luftcirkulationsarrangementet 66 og 68, er i hovedsagen parallelt30 As shown in FIG. 5, the bulkhead 34 extends from wall to wall and from floor to ceiling in the vault 2. The only openings between the first chamber or entrance chamber 30 and the second chamber or freezer chamber 32 are through windows 36 and 38 provided for trans 35. The porter 4. The flow pattern produced by the air circulation arrangement 66 and 68 is substantially parallel.
DK 157412 BDK 157412 B
7 med skottet 34*s plan, så at der optræder en minimal luftudskiftning mellem kamrene. Som vist ved strømretningspilene gennem vinduerne 36 og 38 i fig. 2 er kold luft, som siver ud fra det andet kammer eller frysekammeret 32 gennem vinduet 5 36 endvidere tilbøjelig til at vende tilbage gennem vinduet 38. Indføringen af skottet 34 mellem fryseanlægget og den ydre væg af hvælvingen 2, gennem hvilken transportøren 4 passerer, medvirker til yderligere at isolere fryseanlægget fra den ydre luft og at formindske omfanget af luftudskift-10 ning med atmosfæren. Varmeoverførslen gennem det uisolerede skot 34 og den kolde luft, som siver ind i indgangskammeret 30 medvirker til, at dette kammer holdes ved en meget lav temperatur. Følgelig affugtes den ydre luft, som siver ind gennem gennemgangsvinduerne 14 og 20 til indgangskammeret 15 30, hurtigt, da temperaturen i kammeret 30 er tilstrækkelig lav til at bevirke en udskillelse af den fugt, der indeholdes i luften. Dette arrangement forøger driftstiden mellem afrimninger af fryseanlægget, da det forsinker rimopbygningen inde i kammeret 32. Jo mindre hyppigt anlægget skal standses, 20 desto større er dets produktionskapacitet.7 with the plane of the bulkhead 34 * so that there is minimal air exchange between the chambers. As shown by the flow arrows through the windows 36 and 38 of FIG. 2, cold air seeping out of the second chamber or freezing chamber 32 through window 5 36 is also likely to return through window 38. The insertion of bulkhead 34 between the freezing system and the outer wall of the vault 2 through which the conveyor 4 passes to further isolate the freezer from the external air and to reduce the extent of air exchange with the atmosphere. The heat transfer through the uninsulated bulkhead 34 and the cold air seeping into the inlet chamber 30 helps to keep this chamber at a very low temperature. Accordingly, the external air seeping in through the through-pane windows 14 and 20 to the inlet chamber 15 is rapidly dehumidified, as the temperature in the chamber 30 is sufficiently low to cause a discharge of the moisture contained in the air. This arrangement increases the operating time between defrosting of the freezer as it delays the buildup within the chamber 32. The less frequent the plant must be stopped, the greater its production capacity.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK286379A DK286379A (en) | 1973-01-17 | 1979-07-06 | APPARATUS FOR FREEZING FOOD PRODUCTS |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32443273 | 1973-01-17 | ||
| US00324432A US3857252A (en) | 1973-01-17 | 1973-01-17 | Food product freezing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK157412B true DK157412B (en) | 1990-01-02 |
| DK157412C DK157412C (en) | 1990-06-05 |
Family
ID=23263556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK022174A DK157412C (en) | 1973-01-17 | 1974-01-16 | DEVICE FOR FREEZING FOOD PRODUCTS |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3857252A (en) |
| JP (1) | JPS5412652B2 (en) |
| DK (1) | DK157412C (en) |
| GB (1) | GB1436091A (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209288A (en) * | 1978-06-23 | 1980-06-24 | Fmc Corporation | Frozen confection producing system |
| US4369612A (en) * | 1979-06-11 | 1983-01-25 | Glacier Industries, Inc. | Automatic confection packaging machine |
| DE3023283C2 (en) * | 1980-06-21 | 1982-09-09 | Zahnräderfabrik Renk AG, 8900 Augsburg | Gearbox with load balancing |
| SE451529B (en) * | 1984-02-08 | 1987-10-19 | O G Hoyer As | DEVICE FOR PRODUCING GLASS |
| US4530214A (en) * | 1984-04-04 | 1985-07-23 | Gold Bond Ice Cream, Inc. | Manufacture of molded frozen confections |
| IT1183206B (en) * | 1985-02-06 | 1987-10-15 | Sauer Spa | PLANT FOR THE PRODUCTION OF ICE CREAM AND ICE CREAM, IN PARTICULAR OF THE TYPE EQUIPPED WITH STICK |
| US4770885A (en) * | 1986-07-08 | 1988-09-13 | Apv Glacier Industries, Inc. | Ice cream conveyor line tray and system |
| GB8713872D0 (en) * | 1987-06-13 | 1987-07-15 | Ranks Hovis Mcdougall Plc | Cooling foodstuffs |
| US5247810A (en) * | 1992-07-14 | 1993-09-28 | Liquid Carbonic Corporation | Freezer conveyor |
| DK171761B1 (en) * | 1993-04-14 | 1997-05-12 | Gram Brdr As | Processing plants for temporary storage of items and process for the manufacture of ice cream products |
| DE10135074C1 (en) * | 2001-07-18 | 2002-12-19 | Sollich Kg | Production of confectionery, without powder, involves pouring cooked material into molds on continuous conveyor, which is rotated on side by 180 degrees after cooling to be coated or left uncoated in batches |
| US7748234B2 (en) * | 2003-12-08 | 2010-07-06 | Mp Equipment | Air enhancement system and methods for food processing systems |
| DE102008019903A1 (en) * | 2008-04-21 | 2009-10-22 | Airinotec Gmbh | Cooling tunnel and method of operating such |
| DE102009053321B4 (en) * | 2009-11-17 | 2013-11-07 | Thomas Völkl | Frost cabinet |
| US20210153514A1 (en) * | 2018-07-10 | 2021-05-27 | Skaginn Hf. | Spiral-pump for treating food items |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2237256A (en) * | 1937-10-11 | 1941-04-01 | William J Finnegan | Method and apparatus for multistage freezing of comestibles |
| US2273818A (en) * | 1939-04-24 | 1942-02-24 | Childers Joseph Louis | Air flow control device |
| US2385140A (en) * | 1939-10-23 | 1945-09-18 | Beltice Corp | Process of freezing food |
| US2489918A (en) * | 1947-01-07 | 1949-11-29 | Westinghouse Electric Corp | Process and apparatus for treating meat |
| GB731749A (en) * | 1952-08-14 | 1955-06-15 | Eskimo Pie Corp | Apparatus and method of manufacturing frozen confections |
| US2925052A (en) * | 1953-12-14 | 1960-02-16 | Glass Robert Taylor | Confection machine |
| US2887855A (en) * | 1956-05-07 | 1959-05-26 | Robert T Glass | Air-freeze machine |
| US3201951A (en) * | 1963-12-16 | 1965-08-24 | W E Stone & Co Inc | Updraft continuous freezer |
| GB1132177A (en) * | 1966-03-15 | 1968-10-30 | Frigoscandia A B | Improvements in plant for treating foodstuffs and other products with air |
| US3769807A (en) * | 1971-08-09 | 1973-11-06 | Airco Inc | Carcass chilling facility |
| US3733848A (en) * | 1971-08-09 | 1973-05-22 | Airco Inc | Freezing system |
-
1973
- 1973-01-17 US US00324432A patent/US3857252A/en not_active Expired - Lifetime
-
1974
- 1974-01-09 JP JP540174A patent/JPS5412652B2/ja not_active Expired
- 1974-01-15 GB GB191274A patent/GB1436091A/en not_active Expired
- 1974-01-16 DK DK022174A patent/DK157412C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPS49103236A (en) | 1974-09-30 |
| GB1436091A (en) | 1976-05-19 |
| DK157412C (en) | 1990-06-05 |
| US3857252A (en) | 1974-12-31 |
| JPS5412652B2 (en) | 1979-05-24 |
| AU6463074A (en) | 1975-07-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |