DK159989B - APPARATUS FOR RADIATION LAYOUT OF CLAWBRIGT CORN AND TERMOLABILE SUBSTANCES - Google Patents
APPARATUS FOR RADIATION LAYOUT OF CLAWBRIGT CORN AND TERMOLABILE SUBSTANCES Download PDFInfo
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- DK159989B DK159989B DK073384A DK73384A DK159989B DK 159989 B DK159989 B DK 159989B DK 073384 A DK073384 A DK 073384A DK 73384 A DK73384 A DK 73384A DK 159989 B DK159989 B DK 159989B
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- layer drying
- solid
- drying according
- roof
- transport direction
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/02—Dehydrating; Subsequent reconstitution
- A23B7/03—Drying raw potatoes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
- F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
- F26B3/084—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed with heat exchange taking place in the fluidised bed, e.g. combined direct and indirect heat exchange
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Zoology (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Description
DK 159989BDK 159989B
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Apparatet ifølge opfindelsen kan anvendes i levnedsmiddel- og kemiindustrien samt i landbruget, hvor klæbrige, kornede og termolabile stoffer med bredt kornbåndsspektrum skal tørres, fortrinsvis til tørring af blancherede kartoffel stykker.The apparatus according to the invention can be used in the food and chemical industry as well as in agriculture, where sticky, grainy and thermolabile substances with a broad grain band spectrum are to be dried, preferably for drying blanched potato pieces.
5 Ved kendte apparater, hvor faststofpartiklerne tørres i en varm luftstrøm, befinder partiklerne sig i fluidiseret tilstand i et tørringsrum, hvis vægge, især ved varmluftens indtrædning (fx. indstrømningsbunden i hvirvellagstørrere) næsten har samme temperatur som varmluften, DD-patentskrift 119.304, DE-fremlæggelsesskrift 14.42.813.In known apparatus where the solid particles are dried in a hot air stream, the particles are in a fluidized state in a drying room, the walls of which, especially upon entry of the hot air (e.g., the bottom of the fluidised bed dryer), have almost the same temperature as the hot air, DD patent 1199.304, DE -publication writ 14.42.813.
10 Der kendes endvidere apparater, hvor varme føres direkte ind i det fluideserede lag, dvs. i hvilket der befinder sig varmeelementer, som har en større temperatur end den i hvirvel laget indtrædende varmluft.Further, apparatus are known in which heat is fed directly into the fluidized layer, i.e. in which there are heating elements which have a higher temperature than the hot air entering the vortex.
Begge nævnte arter af apparater har ganske vist en god udnyttelse af drivkraften fra varmluften ved de store indtrædningstemperaturer, men 15 er ikke egnede til tørring af termolabile faststofpartikler, som har tendens til at klæbe sammen. Risikoen for sammenklæbning af faststofpartiklerne og deres derved betingede kvalitetsformindskelse er især stor, hvis der på grund af forandrede produktparametre eller driftsforstyrrelser forekommer store temperatursvingninger i hvirvellaget.Both species of apparatus have good utilization of the hot air propulsion at the high entry temperatures, but 15 are not suitable for drying thermolabile solid particles which tend to adhere. The risk of adhesion of the solid particles and their consequent reduction in quality is particularly high if large temperature fluctuations occur in the fluidised layer due to altered product parameters or operating disturbances.
20 Den i DE-offentliggørelsesskrift 23.35.514 anførte løsning, nemlig at føre tørringsmediet gennem særskilte rør, som er ført gennem den nederste begrænsningsvæg i hvirvel rummet, til fluidiseringsrummet, tilvejebringer herunder kun delvis afhjælpning i den kontinuerlige driftsfase. Især ved start- og stopdrift samt ved driftsforstyrrelser kan en 25 ophedning af hvirvel kammerets underdel ikke undgås, hvilket fører til de nævnte produktbeskadigelser.20 The solution disclosed in DE Publication 23.35.514, namely passing the drying medium through separate tubes passed through the lower restriction wall in the fluidized compartment to the fluidization room, provides only partial remediation in the continuous operating phase. Especially during start and stop operation and in case of operational disturbances, a heating of the lower part of the vortex chamber cannot be avoided, which leads to the said product damage.
Hidtil har der ikke været kendt noget apparat, hvor den indtrædende varmluft har en høj temperatur, og hvor hele det fluidiserede lag begrænses af flader, som har en lavere temperatur end den indtrædende 30 varmluft.Heretofore, no apparatus has been known in which the entering hot air has a high temperature and where the entire fluidized layer is limited by surfaces having a lower temperature than the entering hot air.
Ved den mere intensive gennemblånding af faststofpartiklerne i runde hvirvel lagsapparater, DE-offentliggørelsesskrift 22.31.945,By the more intensive mixing of the solid particles in round vortex layer apparatus, DE Publication No. 22.31.945,
DK 159989 BDK 159989 B
- 2 - 27.38.485, eller overholdelsen af en konstant middelopholdstid i rende-formede apparater, DD-patentskrift 150.852, opnås der endvidere, at både store og små partikler tilnærmelsesvis har den samme opholdstid og enten overtørres de små partikler og beskadiges derved, eller de store 5 partikler tørres ikke tilstrækkeligt.In addition, 27.38.485, or the observance of a constant mean residence time in gutter-shaped appliances, DD patent specification 150,852, achieves that both large and small particles have approximately the same residence time and either the small particles are overstated and thereby damaged, or the big 5 particles are not sufficiently dried.
Der kendes ingen apparater, hvor opholdstiden af faststofferne kan styres således i afhængighed af deres partikelstørrelse, at de store og fugtige faststofpartikler tørres længere under skarpere tørringsbetingelser (højere temperatur, ringere relativ luftfugtighed) end de min-10 dre.No apparatus is known in which the residence time of the solids can be controlled so as to depend on their particle size that the large and moist solid particles are dried longer under sharper drying conditions (higher temperature, poorer relative humidity) than the smaller ones.
Målet med opfindelsen består i at tilvejebringe et apparat ved hjælp af hvilket en strålelagstørring af fortrinsvis blancherede kartoffelstykker er mulig således, at der undgås termiske beskadigelser af de med stivelse fyldte kartoffel stykker og varmetab på grund af vægkø-15 lingen.The object of the invention is to provide an apparatus by means of which a jet layer drying of preferably blanched potato pieces is possible so as to avoid thermal damage of the starch-filled potato pieces and heat loss due to the wall cooling.
Apparatet skal muliggøre en kontinuerlig arbejdsproces og tilstræbe en ensartet tørring af kartoffel stykkerne afpasset efter deres størrelse.The appliance should enable a continuous working process and aim for uniform drying of the potato pieces according to their size.
Til grund for opfindelsen ligger den opgave at udvikle et stråle-20 lagsapparat således, at væggene i strålelaget har en lavere temperatur end den indtrædende varmluft, for at undgå risikoen for klæbning af blancherede kartoffel stykker. Desuden skal der opnås en tilsigtet opholdstidsfordeling for kartoffel stykkerne i afhængighed af deres størrelse, med den opgave fra processens drivkraft at underkaste de større 25 partikler skærpede tørringsbetingelser og længere opholdstider end de mindre. Desuden skal den til køling af væggene brugte varme tilbagetages til processen.The object of the invention is to develop a radiator layer apparatus such that the walls of the radiant layer have a lower temperature than the incoming hot air, in order to avoid the risk of adhering to blanched potato pieces. In addition, an intentional residence time distribution for the potato pieces must be obtained depending on their size, with the task of the process's impetus to subject the larger 25 particles to sharpen drying conditions and longer residence times than the smaller ones. In addition, the heat used to cool the walls must be taken back to the process.
Denne opgave kan ikke løses med de hidtil kendte løsninger, hvor gods tørres i fluidiseret tilstand, da alle apparatdele især i startfa-30 sen tilnærmelsesvis har den samme temperatur som den indtrædende varmluft og således resulterer i en termisk beskadigelse af kartoffel stykkerne på grund klæbning til den varme væg.This problem cannot be solved with the known solutions where goods are dried in a fluidized state, since all appliance parts, especially in the starting phase, have approximately the same temperature as the entering hot air and thus result in thermal damage to the potato pieces due to adhesion to the the warm wall.
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DK 159909 BDK 159909 B
Ifølge opfindelsen løses opgaven ved, at de skråt anbragte sidevægge i fluidiseringskammeret i et apparat til strålelagstørring af fortrinsvis kartoffel stykker, bestående af et nedre luftfordelerkammer, et firkantet fluidiseringskammer, som opadtil udvider sig, og et øvre 5 udskillelseskammer, forneden er udformet som et rendeformet element.According to the invention, the task is solved by the obliquely arranged side walls of the fluidization chamber of an apparatus for jet layer drying of preferably potato pieces consisting of a lower air distribution chamber, an upwardly extending fluidizing chamber, and an upper separation chamber, shaped below it element.
Dette element er åbent opadtil og dækkes ved hjælp af et tagformet element således, at der opstår en spalte. Herunder er både vinklen for det tagformede element og spaltebredden og afbøjningshøjden afstemt efter hinanden. Det tagformede element er yderligere på tværs af partiklernes 10 transportretning forsynet med slidser, hvis i transportretningen af partiklerne liggende kanter er bukket opad ud af tagplanet.This element is open upwards and is covered by a roof-shaped element so that a gap is formed. Below, both the angle of the roof-shaped element and the slit width and the deflection height are aligned. The roof-shaped element is further provided with slots across the transport direction of the particles 10 if the edges lying in the transport direction of the particles are bent upwards out of the roof plane.
Det tagformede element har på sit højeste sted en lodret anbragt mellemvæg. Både mellemvæggen og de skråt anbragte sidevægge i fluidiseringskammeret er forsynet med køleelementer, som gennemstrømmes af kø-15 levæske. Disse køleelementer er forbundet således indbyrdes, at der opstår en gennemgangsvej for væsken i faststoftransportretningen. Herunder er det sidste køleelement ved faststofstofudtrædningen via en rørledning forbundet med en i den sidste lufttilførselsstuds i retning mod faststofudtrædningen værende varmeveksler. Udgangsstudsen fra denne 20 varmeveksler for den afkølede kølevæske er via en yderligere rørledning forbundet med en pumpe og denne atter via en rørledning med indgangsstudsen til det første køleelement ved faststofindgangen.The roof-shaped element has at its highest place a vertically arranged partition. Both the intermediate wall and the obliquely arranged side walls of the fluidization chamber are provided with cooling elements flowing through the coolant. These cooling elements are interconnected so as to provide a passage path for the liquid in the solid transport direction. Below, the last cooling element of the solid discharge is connected via a pipeline to a heat exchanger in the last air supply outlet in the direction of the solid discharge. The outlet from this 20 cooled heat exchanger heat exchanger is connected to a pump via a further pipeline and this again via a pipeline with the input plug to the first cooling element at the solids inlet.
Det hører med til opfindelsen, at væggene i fluidiseringskammeret indvendig er forsynet med vinkelret på væggen påsatte ledeskovle, som 25 er anbragt således i en vinkel i forhold til lodret, at de peger i faststoftransportretningen.It is an object of the invention that the walls of the fluidization chamber are provided with guide vanes mounted perpendicular to the wall, which are arranged at an angle to the vertical so that they point in the solid transport direction.
Til hører endvidere til opfindelsen, at ledeelementerne på indersiden af de skrå vægge i fluidiseringskammeret er indstillelige, hvorhos vinklen i forhold til lodret fortrinsvis andrager fra 20° til 30°.Furthermore, the invention includes that the guide elements on the inside of the inclined walls of the fluidization chamber are adjustable, the angle relative to the vertical preferably ranging from 20 ° to 30 °.
30 En yderligere ejendommelighed ved opfindelsen består i, at mellemvæggen og det tagformede element både er indstillelige i højden og er drejeligt anbragt på tværs af faststofretningen, hvorved højden mellemA further feature of the invention consists in that the intermediate wall and the roof-shaped element are both adjustable in height and are pivotally arranged transversely to the solids direction, whereby the height between
DK 159989 BDK 159989 B
- 4 - underkanten af det tagformede element og bunden i det rendeformede element lader sig indstille således, at kontinuerligt til- eller aftagende højder er mulige langs faststoftransportretningen.- 4 - the lower edge of the roof-shaped element and the bottom of the gutter-shaped element can be adjusted so that continuous increasing or decreasing heights are possible along the solid transport direction.
Det blev endvidere fundet, at vinklen af de skråt anbragte vægge i 5 fluidiseringskammeret antager optimale værdier i afhængighed af middelværdien af partikeldiameteren under følgende betingelse: /98,5 d + 0,603 _ q y tany > (493 d + 3,015 _ g g\ 125 d + 0,625 “ * “ 625 d + 3,12 10 Gennem en faststofindgang kommer enkeltstykker af klæbrige og ter- molabile faststofpartikler ind i fluidiseringskammeret. Varm luft træder ind via lufttilførselsstudse i det nedre luftfordelerkammer, gennemstrømmer spalten mellem de to rendeformede elementer, afbøjes udad ved hjælp af det tagformede element og ved hjælp af den buede slidse i 15 det tagformede element imod strømningsretningen for faststofferne. Luftbelastningen vælges herunder således, at udgangshastigheden i det rendeformede element for alle faststofpartikler overskrides. Derved fremkommer der en styret strømning af luft og faststofpartikler udad og modsat faststrømningsretningen. På grund af den opadtil aftagende ha-20 stighed forefindes der i det øvre område især mindre og tørre partikler, som afbøjes ved hjælp af ledeskovlene i faststofretningen. De store og tunge faststofpartikler, som behøver en stor opholdstid, befinder sig i den nedre del af strålelaget og hæmmes ved anbringelsen ifølge opfindelsen af den nedre del af apparatet efter deres transporthastig-25 hed. Ved at både de skrå sidevægge i fluidiseringskammeret og mellemvæggen køles ved hjælp af køleelementer, klæber de enkelte klæbrige og termolabile faststofpartikler ikke vedvarende til apparatet, men holdes i strålelaget i konstant turbulent bevægelse. Ved hjælp af koblingen af køleelementerne ifølge opfindelsen opvarmes kølemediet i faststofret-30 ningen. Dermed hersker der ved det mest kritiske sted, faststofindtræd-ningen, de laveste vægtemperaturer og således den mindste risiko for fastklæbning. Det kølemedium, som træder ud af det sidste køleelement, DK 159989 3 - 5 - afgiver varmen til en varmeveksler, som er anbragt i det sidste indgangstrin i faststoftransportretningen, og det afkøles derved og derpå påny ført via en pumpe til indgangsstudsen til det første køleelement.It was further found that the angle of the inclined walls of the fluidization chamber assumes optimal values depending on the mean of the particle diameter under the following condition: / 98.5 d + 0.603 _ qy tany> (493 d + 3,015 _ gg \ 125 d + 0.625 "*" 625 d + 3.12 10 Through a solids entrance, single pieces of sticky and thermolabile solid particles enter the fluidization chamber Hot air enters via the air supply nozzle in the lower air distribution chamber, the gap between the two gutter-shaped elements is deflected outwards of the roof-shaped element and by means of the curved slit in the roof-shaped element against the flow direction of the solids The air load is chosen below such that the exit velocity of the gutter-shaped element for all solid particles is exceeded, thereby producing a controlled flow of air and solid particles outward and opposite. Due to the upward decreasing head In the upper region, there are especially smaller and dry particles which are deflected by the guide vanes in the solid direction. The large and heavy solid particles which need a large residence time are in the lower part of the jet layer and are inhibited by the arrangement according to the invention of the lower part of the apparatus according to their transport speed. By cooling both the inclined side walls of the fluidization chamber and the middle wall by means of cooling elements, the individual sticky and thermolabile solid particles do not adhere permanently to the apparatus, but are kept in the jet layer in constant turbulent motion. By means of the coupling of the cooling elements according to the invention, the refrigerant is heated in the solid direction. Thus, at the most critical site, solids entry, the lowest wall temperatures, and thus the least risk of sticking, prevail. The refrigerant exiting the last cooling element, DK 159989 3 - 5 - supplies the heat to a heat exchanger, which is placed in the last input stage in the solid transport direction, and it is then cooled and then re-fed via a pump to the input socket for the first cooling element. .
Derved tilbagevindes hele den gennem vægkølingen bortførte varme.Thereby, all the heat carried through the wall cooling is recovered.
5 På grund af den lodrette forskydelighed af det tagformede element kan der ved konstant tryktab realiseres forskellige luftgennemgange, som er afpasset efter de pågældende faststofpartikelstørrelser, og dermed forskellige lufthastigheder.5 Due to the vertical displacement of the roof-shaped element, at constant pressure losses different air passages adapted to the particular particle size of the solids can be realized, and thus different air velocities.
Desuden kan den for tryktabet afgørende højde h ved hjælp af drej-10 ning i mellemvæggens plan, ændres over apparatets længde. Hvis fx. det tagformede element med mellemvæggen drejes således, at højden h aftager i faststofretningen, strømmer der gennem spalten nær ved faststofindgangen mere luft, som på dette sted behøves på grund af den store ind-gangsfugtighed og de endnu store partikler. I faststoftransportretnin-15 gen aftager lufthastigheden kontinuerligt derpå med den mindre materia-lefugtighed og partikeldiameter.In addition, the height h which is decisive for the pressure loss can be changed over the length of the apparatus by means of rotation in the plane of the diaphragm. If e.g. the roof-shaped element with the intermediate wall is rotated so that the height h decreases in the solids direction, more air flows through the gap near the solids entrance, which is needed at this location due to the large inlet humidity and the still large particles. In the solids transport direction, the air velocity continuously decreases thereafter with the smaller material humidity and particle diameter.
Opfindelsen forklares i det følgende ved hjælp af et udførelseseksempel og de dertil hørende tegninger, på figurerne 1 - 4 for blancherede kartoffel stykker. På tegningen viser: 20 fig. 1 apparatet i en principiel gengivelse, set fra siden, fig. 2 snittet A - A gennem fig. 1, fig. 3 snittet B - B gennem fig. 2, fig. 4 en rumlig gengivelse af fluidiseringskammeret.The invention is explained in the following by means of an exemplary embodiment and the accompanying drawings, in Figures 1-4 for blanched potato pieces. In the drawing: FIG. 1 is a side elevational view of the apparatus, FIG. 2 shows the section A - A through FIG. 1, FIG. 3 shows the section B - B through FIG. 2, FIG. 4 is a spatial representation of the fluidization chamber.
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Apparatet til strålelagstørring af blancherede kartoffel stykker består af et luftfordelerkammer 1, som forneden er opdelt i tre dele, i hvilket luftindtrædningsstudsen 2 er anbragt. Til luftfordelerkammeret 1 slutter der sig et opadtil udvidende firkantet fluidiseringskammer 3, 30 som foroven går over i et med luftudgangsstudse 4 forsynet udskillelseskammer 6. Sidevæggene 6 i fluidiseringskammeret 3 er anbragt under en vinkel y op 25°. De går fra neden over i et rendeformet, opadtilThe radiator layer drying apparatus for blanched potato pieces consists of an air distributor chamber 1, which is subdivided into three parts below, into which the air entry nozzle 2 is arranged. To the air distributor chamber 1 is joined an upwardly extending square fluidization chamber 3, 30 which above opens into a separating chamber 6 provided with air outlet nozzle 6. The side walls 6 of the fluidization chamber 3 are arranged at an angle γ up to 25 °. They go from below into a gutter, upwards
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- 6 - åbent element 7. Spaltebredden S mellem de to elementer andrager 40 mm.- 6 - open element 7. The gap width S between the two elements is 40 mm.
Spalten mellem de to elementer dækkes ved hjælp af et tagformet element 8, som er anbragt under en vinkel i på 70°. Afbøjningshøjden h mellem det tagformede element 8 og det dybeste sted i det rendeformede element 5 7 andrager herunder 10 mm. Det tagformede element 8 er på undersiden forsynet med slidser 9 på tværs af faststoffets transportretning.The gap between the two elements is covered by a roof-shaped element 8 arranged at an angle of 70 °. The deflection height h between the roof-shaped element 8 and the deepest place in the gutter-shaped element 5 7 is 10 mm, including. The roof-shaped element 8 is provided on the underside with slots 9 across the transport direction of the solid.
Slidserne 9 er udformet således, at de i faststoffets transportretning liggende kanter er bukket trekantformet opad ud fra tagplanet.The slots 9 are formed such that the edges of the solid in the transport direction are bent triangular upwards from the roof plane.
Foroven løber det tagformede element 8 over i en lodret mellemvæg 10, 10 på hvilken de af kølevæske gennemstrømmede køleelementer 11 er anbragt.Above, the roof-shaped element 8 extends into a vertical intermediate wall 10, 10 on which the cooling elements flowing through the coolant 11 are arranged.
Disse køleelementer dannes ved hjælp af dobbeltvægge. De skråt anbragte vægge 6 i fluidiseringskammeret 3 er indvendig forsynet med vinkelret på væggen påsatte ledeskovle 12. Disse ledeskovle 12 er anbragt under en vinkel på 15° i forhold til lodret således, at de peger i faststof-15 retningen. Væggene 6 i fluidiseringskammeret 3 er udvendig ligeledes forsynet med køleelementer 13, som er udformet som en dobbeltkappe. Med henblik på varmetilbagevinding er køleelementerne 11 samt mellemvæggen 10 samt væggene 6 i fluidiseringskammeret 3 forbundet således med hinanden, at der opstår en gennemgangsvej for væsken i faststoftransport-20 retningen. Det sidste køleelement ved faststofudgangen 14 har en udgangsstuds 16, som via en rørledning er forbundet med en i den sidste lufttilgangsstuds i retning mod faststofudgangen tilstedeværende varmeveksler 18. Udgangsstudsen for kølevæsken i varmeveksleren 18 er forbundet til en pumpe 20 via en yderligere rørledning 19. Denne pumpe 20 25 er atter via en rørledning 21 forbundet med indgangsstudsene 22 i det første køleelement 13 ved faststofindgangen 15. Mellemvæggen 10 og det tagformede element 8 er lodret indstillelige, således at højden h fra underkanten af det tagformede element 8 til bunden af det rendeformede element 7 er indstilleligt indenfor grænserne mellem 10 - 40 mm.These cooling elements are formed by double walls. The inclined walls 6 of the fluidization chamber 3 are internally provided with guide vanes 12 mounted perpendicular to the wall. These vanes 12 are disposed at an angle of 15 ° to vertical so that they point in the solid direction. The walls 6 of the fluidization chamber 3 are externally also provided with cooling elements 13 which are formed as a double jacket. For the purpose of heat recovery, the cooling elements 11 as well as the intermediate wall 10 as well as the walls 6 of the fluidization chamber 3 are interconnected so as to provide a passage path for the liquid in the solid transport direction. The last cooling element at the solids outlet 14 has an outlet nozzle 16 which is connected via a pipeline to a heat exchanger 18 present in the last air inlet in the direction of the solids outlet 18. The outlet nozzle for the coolant in the heat exchanger 18 is connected to a pump 20 via an additional pipeline 19. pump 20 25 is again connected via a pipeline 21 to the inlet nozzles 22 of the first cooling element 13 at the solids entrance 15. The intermediate wall 10 and the roof-shaped element 8 are vertically adjustable so that the height h from the bottom edge of the roof-shaped element 8 to the bottom of the gutter-shaped element 7 is adjustable within the limits between 10 - 40 mm.
30 Højden af mellemvæggen 10 andrager 300 mm. Analogt med luftforde- lerkammeret 1 er det øvre udskillelseskammer 5 og fluidiseringskammeret 3 opdelt ved hjælp af lodrette mellemvægge 23 på tværs af faststof-30 The height of the intermediate wall 10 is 300 mm. Analogous to the air distributor chamber 1, the upper separation chamber 5 and the fluidization chamber 3 are divided by vertical intermediate walls 23 across the solid state.
DK 159989BDK 159989B
- 7 - transportretningen, i hvilket der befinder sig åbninger 24, 24'. Ledeskovlene 12 er herunder anbragt således, at de kan indstilles lukket i et vinkelområde β fra 10° til 30°.- 7 - the direction of transport in which there are openings 24, 24 '. The guide vanes 12 are located below such that they can be adjusted closed at an angular range β from 10 ° to 30 °.
55
Claims (11)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD25099283 | 1983-05-18 | ||
| DD83250992A DD217004A1 (en) | 1983-05-18 | 1983-05-18 | DEVICE FOR RADIANT-LAYER DRYING OF STICKY-CERAMIC AND THERMOLATIVE SUBSTANCES |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK73384D0 DK73384D0 (en) | 1984-02-17 |
| DK73384A DK73384A (en) | 1984-11-19 |
| DK159989B true DK159989B (en) | 1991-01-14 |
| DK159989C DK159989C (en) | 1991-07-01 |
Family
ID=5547362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK073384A DK159989C (en) | 1983-05-18 | 1984-02-17 | APPARATUS FOR RADIATION LAYOUT OF CLAWBRIGT CORN AND TERMOLABILE SUBSTANCES |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT384349B (en) |
| DD (1) | DD217004A1 (en) |
| DE (1) | DE3400397A1 (en) |
| DK (1) | DK159989C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4008903A1 (en) * | 1990-03-20 | 1991-09-26 | Kloeckner Humboldt Deutz Ag | METHOD AND DEVICE FOR DRYING DAMP MATERIALS IN A FLUIDIZED BED |
| EP0893068A1 (en) * | 1997-07-24 | 1999-01-27 | Zweifel Pomy-Chips Ag | Method of preparing small pieces of dehydrated potatoes |
| WO2001036887A1 (en) * | 1999-11-15 | 2001-05-25 | Energy Engineering International (Pty) Ltd. | A fluidized bed apparatus |
| DE10004939C1 (en) * | 2000-02-05 | 2001-08-23 | Lothar Moerl | Gas flow unit, for jet layer apparatus, comprises jet inlet wall, return flow wall, cylinder, and fluidizing chamber |
| US20030121302A1 (en) * | 2000-03-13 | 2003-07-03 | Oliver Michael John Basil | Production of a fertilizer product |
| DE10162781A1 (en) * | 2001-12-20 | 2003-07-03 | Glatt Ingtech Gmbh | Jet layer apparatus used for continuous and batch processes comprises process regions joined together by overflows |
| DE10322062A1 (en) * | 2003-05-15 | 2004-12-02 | Glatt Ingenieurtechnik Gmbh | Method and device for applying liquids in a solid flow of a spouted bed apparatus |
| US7241425B2 (en) | 2004-01-13 | 2007-07-10 | Glatt Ingenieurtechnik Gmbh | Fluidized bed apparatus for batch-by-batch or continuous process control and method for operating a fluidized bed apparatus |
| AT10660U1 (en) | 2008-03-19 | 2009-07-15 | Binder Co Ag | DRYER WITH COOLING MEDIUM |
| US9506693B2 (en) * | 2014-08-22 | 2016-11-29 | Kelly Brian Pauling | Grain dryers with selectable ducts for cooling |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3881548A (en) * | 1971-07-14 | 1975-05-06 | Westinghouse Electric Corp | Multi-temperature circulating water system for a steam turbine |
| DE2335514A1 (en) * | 1973-07-12 | 1975-02-06 | Ciba Geigy Ag | Hot air treatment in fluidised bed - esp. of heat sensitive material with air inlets above bed floor |
| DD119304A1 (en) * | 1975-04-23 | 1976-04-12 | ||
| DE2738485A1 (en) * | 1977-08-26 | 1979-03-01 | Glatt Klimaanlagen | Fluid bed device - having rotating disc mounted above vibrating bed support for reaction and granulation especially in pharmaceuticals |
| DD150852A1 (en) * | 1980-05-27 | 1981-09-23 | Rolf Elspass | DEVICE FOR SPINE TREATMENT OF SOLIDS |
-
1983
- 1983-05-18 DD DD83250992A patent/DD217004A1/en not_active IP Right Cessation
-
1984
- 1984-01-07 DE DE19843400397 patent/DE3400397A1/en active Granted
- 1984-01-10 AT AT0005384A patent/AT384349B/en not_active IP Right Cessation
- 1984-02-17 DK DK073384A patent/DK159989C/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DE3400397A1 (en) | 1984-11-22 |
| DK73384A (en) | 1984-11-19 |
| ATA5384A (en) | 1987-04-15 |
| DK159989C (en) | 1991-07-01 |
| AT384349B (en) | 1987-10-27 |
| DK73384D0 (en) | 1984-02-17 |
| DD217004A1 (en) | 1985-01-02 |
| DE3400397C2 (en) | 1991-10-10 |
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