EP1317647B1 - Doppelhüllen-trockner - Google Patents
Doppelhüllen-trockner Download PDFInfo
- Publication number
- EP1317647B1 EP1317647B1 EP01960051A EP01960051A EP1317647B1 EP 1317647 B1 EP1317647 B1 EP 1317647B1 EP 01960051 A EP01960051 A EP 01960051A EP 01960051 A EP01960051 A EP 01960051A EP 1317647 B1 EP1317647 B1 EP 1317647B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- chamber
- shell
- air
- products
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/08—Parts thereof
- F26B25/12—Walls or sides; Doors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
Definitions
- the present invention relates to an apparatus and a method for Drying of moist products, in particular pasta, according to the preamble of claim 1 or according to claim 6.
- moist products e.g. Wood, pasta, etc.
- Such a drying oven on the one hand has a bad thermal efficiency, because a lot of heat over the heated masonry in the Environment is discharged and thus for the warming of the interior of the Drying cabinet through flowing dry gases is not available. Because the Doors of the drying cabinet have no insulation and directly with the Atmosphere air is with a strong during drying is, during drying with a strong tendency to condensation to count on the inside of the doors.
- the drying station consists of one, the material to be dried receiving housing made of a thermally insulating Wall, wherein in the housing interior, a thermally heated, gaseous Introduced drying medium and led out as exhaust gas.
- the housing wall is so traversed by a heat medium that on the inside of the housing a wall temperature exists, the dew point and underruns the interior of the steam-enriched drying medium prevented. Because the drying station only in its wall area and its ceiling area equipped with the housing wall through which a heat medium flows, Here too, similar to the drying oven of the previous paragraph, one goes lost considerable amount of heat above the ground. Again, there is an increased Tendency to condensation on the ground.
- EP 0177 774 discloses a drying device for sheet materials. She contains a drying chamber through which passed the sheet material to be dried and brought into contact with flowing dry gas. Moreover is arranged around the drying chamber, a jacket whose inner walls together with limit the outer walls of the drying chamber a gap. The dry gas is heated in a heater and then flows through the drying chamber passing through, with at least a portion of its heat to the dry gas in the space emits. Through the gap flows cold dry gas, causing the Exterior walls of the jacket remain relatively cool. Thus, there are no waiting times when the device is to be taken apart for cleaning. Special arrangements for the heat insulation of the jacket are not made.
- the invention is therefore based on the object, the ingress of moisture in To prevent the insulation material of the dryer wall / dryer cover to a wetting of the insulating material and to prevent leakage of the dryer.
- Hot air flow can be circulated with low relative humidity, preventing any condensation in the space between the inner shell and the outer shell of the dryer in derogation.
- the insulation of the Vapor barrier spatially separated, with the interspace with the hot dry Air forms the actual vapor barrier.
- a previously very expensive Vapor barrier of completely vapor-tight sheet metal directly on the insulating material is therefore not necessary.
- the inner shell preferably Made of sheet metal, a small heat insulation on, while the outer Case has a high thermal insulation of a conventional insulation material.
- the inner shell In Connection with the dry hot air in the space of this double hull is characterized ensures that moisture leaking through leaks on the inner shell neither on the outside of the inner shell, nor on the inside of the outer shell can lead to condensation of water.
- the outer shell is spaced far enough from the inner shell, that of the gap formed by the two shells of such a double-hull dryer or "drier in the house" is walkable.
- the outer shell may also be partially or completely made of an inflatable compliant Material exist that becomes self-supporting by inflation.
- the inner envelope around flowing hot air has a "climate”, its temperature, humidity and pressure are such that in the double hull no condensation can take place.
- the second gas i. the dry hot air is sufficiently high Temperature and low enough humidity have their dew point below the temperature of the ambient air is. This will cause the condensation on the inside the outer shell prevents even if this bad or even not insulated against the outside air.
- the dry hot air in the space e.g. have a temperature of about 110 ° C and a relative humidity of about 2%.
- Fig. 1 is a schematic representation of the inventive double-hull concept for a pasta dryer.
- the drying area consists of an inner Chamber 1, which is surrounded by an inner shell 2.
- This Part of the inventive dryer works like a conventional pasta dryer.
- the inner shell inner chamber 1 surrounded by an outer chamber 3, in turn of the outer shell 4 is limited. Through this chamber 3 is very dry and passed hot air.
- the shell is preferably made of sheet steel. Between the inner Chamber 1 and the outer chamber 3 is made by the good heat conducting Steel sheet therefore only a very small thermal insulation, but forms a Vapor barrier.
- This dry-hot climate in the double hull 3 between inner shell 2 and outer Case 4 is produced by heating ambient air by means of a heater 8.
- the ambient air can also be supplied to a part of the circulating air before or after the heating become. It is essential that by heating dry air with very low relative humidity is generated.
- Typical operating conditions are e.g. about 90 ° C and about 80% relative humidity for the warm and humid air in the drying chamber 1.
- the relative Humidity at a temperature of 110 ° C at 2%.
- this air can also reach 220 ° C are heated, then the relative humidity is 0.1%.
- Fresh air from the environment can then produce a dry stream of hot air 110 ° C and 2% relative humidity can be achieved.
- Fig. 1 shows a line section 12, which extends from the heater 8 to a fresh air supply line 11.
- the exhaust air from the double hull 3 is discharged via a line 14, while the circulating air of a line 13 is returned to the heater 8.
- the initially mentioned steam supply in the humid air of the inner chamber 1 is not shown in Fig. 1.
- Fig. 2 shows a system for carrying out the inventive method. While in Fig. 1 only through the outer chamber 3 extending "dry hot” air circulation is shown schematically, Fig. 2 shows both this "dry hot” air circulation as well as the "humid” air circulation through the chamber 1, and indeed each with a heat exchanger 16 or 20 and in each case a radial fan 17th or 21.
- the heat exchangers 16, 20 each provide the necessary heating in the Air chamber, while the radial fan 17, 21 respectively for the circulation of air in provide each cycle.
- the pressure of the "warm, moist” air in the inner circuit a slightly lower value than the pressure of the "dry” air in the outside Circulation.
- the pressure of the "warm, moist” air in the inner circuit a slightly lower value than the pressure of the "dry” air in the outside Circulation.
- both in the inner chamber 1 and in the outer chamber 2 sensors for detecting the climate parameters of the respective Air provided.
- the respective actual values of the climate parameters with their desired target values are compared, depending on the actual-target deviation over a corresponding actuator, a heat exchanger and / or a throttle valve and / or an orifice and / or the steam injection 22 to actuate, whereby the corresponding parameters temperature (Ti, Ta), pressure (Pi, Pa) and humidity ( ⁇ i, ⁇ a) are regulated.
- a recirculation system 15 For homogenization of the "warm, moist" air in the inner chamber 1 is a recirculation system 15 provided.
- the inner shell 1 defined by the inner shell 2 stands on two sockets 9, 10. This ensures an almost complete flow around the chamber 1 through the dry hot air.
- the space of the double hull is preferably designed so spacious that he is walkable. This is important for cleaning, maintenance and repair work.
- One Minimum distance of about 0.5 m between inner shell 2 and outer shell 4 should to be available.
- the outer shell 4 as a "house” with door and interior lighting educated.
- the dryer according to the invention is particularly advantageous because it hardly consumes more energy needed as a conventional dryer. Due to the spatial separation of vapor barrier (Inner shell 2) and heat barrier or heat insulation (outer shell 4) is at low leakage current from chamber 1 to chamber 2 or vice versa without appreciable Extra effort an excellent tightness of the dryer without big Sealing effort achieved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
- Noodles (AREA)
- Manufacturing And Processing Devices For Dough (AREA)
Description
- Fig. 1
- ist eine schematische Darstellung des erfindungsgemässen Doppelhüllen-Konzeptes; und
- Fig. 2
- ist eine schematische Darstellung der gesamten erfindungsgemässen Anlage zur Durchführung des erfindungsgemässen Verfahrens.
Claims (10)
- Vorrichtung zum Trocknen von feuchten Produkten, insbesondere Teigwaren, mit einer von einer inneren Hülle (2) umgebenen inneren Kammer (1) zur Aufnahme der zu trocknenden Produkte und einer die innere Hülle (2) umgebenden und von ihr derart beabstandeten äusseren Hülle (4), dass zwischen der inneren Hülle (2) und der äusseren Hülle (4) eine äussere Kammer (3) begrenzt wird, wobei die innere Hülle (2) eine geringe Wärmeisolierung aufweist, während die äussere Hülle (4) eine hohe Wärmeisolierung aufweist, und wobei die innere Kammer (1) von einem ersten Gas bzw. Gasgemisch mit einer ersten Atmosphäre durchströmbar ist und die äussere Kammer (3) von einem zweiten Gas bzw. Gasgemisch mit einer zweiten Atmosphäre durchströmbar ist, dadurch gekennzeichnet, dassa) die äussere Kammer (3) die innere Kammer (1) im wesentlichen vollständig umschliesst undb) die äussere Hülle (4) an ihrer Innenseite mit einer Isolierung (5) aus Isolationsmaterial versehen ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die innere Hülle (2) aus Blech, insbesondere Stahlblech besteht, während die äussere Hülle (4) eine Schicht aus Blech, insbesondere Stahlblech, sowie eine Isolationsschicht (5) aufweist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die äussere Hülle (4) eine Tür aufweist und der durch die äussere Kammer gebildete Zwischenraum (3) zwischen der inneren Hülle (2) und der äusseren Hülle (4) begehbar ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die äussere Hülle (4) zumindest in Teilbereichen aus einem nachgiebigen Material besteht.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die äussere Hülle (4) zumindest in den Teilbereichen durch aufblasbare, nachgiebige Kammern selbsttragend ist.
- Verfahren zum Trocknen von feuchten Produkten, insbesondere Teigwaren, mittels einer Vorrichtung nach einem der Ansprüche 1 bis 5, wobei die in der inneren Kammer zu trocknenden Produkte von einem ersten Gas bzw. Gasgemisch mit einer ersten Atmosphäre (Ti, ϕi, Pi) umströmt werden, das von den Produkten entweichenden Wasserdampf aufnimmt und abführt, und die innere Kammer von einem durch die äussere Kammer strömenden zweiten Gas bzw. Gasgemisch umströmt wird, dessen Atmosphäre (Ta, ϕa, Pa) und Strömungsgeschwindigkeit so beschaffen sind, dass in der äusseren Kammer keine Kondensation stattfindet.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass das zweite Gas bzw. Gasgemisch so wenig Feuchtigkeit enthält und so heiss ist, dass sein Taupunkt unterhalb der Temperatur der Umgebungsluft liegt.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass der Druck (Pa) des zweiten Gases bzw. Gasgemisches geringfügig höher als der Druck (Pi) des ersten Gases bzw. Gasgemisches ist.
- Verfahren nach Anspruch 6 oder 8, insbesondere zur Trocknung von Teigwaren, dadurch gekennzeichnet, dass das durch die innere Kammer strömende erste Gas Luft mit einer Temperatur von 70 bis 110°C und einer relativen Luftfeuchtigkeit von 70 bis 90% ist, während das durch die äussere Kammer strömende zweite Gas Luft mit einer Temperatur von mindestens 110°C und einer relativen Luftfeuchtigkeit von 1 bis 5% ist.
- Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass das erste Gas Luft mit einer Temperatur von 80 bis 100°C, vorzugsweise etwa 90°C ist und eine relative Luftfeuchtigkeit von 75 bis 85%, vorzugsweise etwa 80% hat, und das zweite Gas Luft mit einer Temperatur von 110 bis 120°C, vorzugsweise etwa 110°C mit einer relativen Luftfeuchtigkeit von 1 bis 3%, vorzugsweise etwa 2% ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10045878A DE10045878A1 (de) | 2000-09-14 | 2000-09-14 | Doppelhüllen-Trockner |
DE10045878 | 2000-09-14 | ||
PCT/CH2001/000541 WO2002023108A1 (de) | 2000-09-14 | 2001-09-07 | Doppelhüllen-trockner |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1317647A1 EP1317647A1 (de) | 2003-06-11 |
EP1317647B1 true EP1317647B1 (de) | 2005-01-19 |
Family
ID=7656468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01960051A Expired - Lifetime EP1317647B1 (de) | 2000-09-14 | 2001-09-07 | Doppelhüllen-trockner |
Country Status (10)
Country | Link |
---|---|
US (1) | US20040045183A1 (de) |
EP (1) | EP1317647B1 (de) |
JP (1) | JP2004508530A (de) |
AT (1) | ATE287519T1 (de) |
AU (1) | AU2001281661A1 (de) |
BR (1) | BR0113840A (de) |
DE (2) | DE10045878A1 (de) |
RU (1) | RU2003110425A (de) |
TR (1) | TR200300326T2 (de) |
WO (1) | WO2002023108A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008002334A1 (de) * | 2008-06-10 | 2009-12-17 | Bühler AG | Verfahren zum Herstellen von Teigwaren |
CN103895928A (zh) * | 2014-04-14 | 2014-07-02 | 江南大学 | 一种晾晒用容器 |
DE102014015705A1 (de) * | 2014-10-22 | 2016-04-28 | Wenker Gmbh & Co. Kg | Trockner für technische Gegenstände, insbesondere für lackierte Kraftfahrzeugkarosserien |
CN106052320A (zh) * | 2016-07-05 | 2016-10-26 | 李明波 | 一种节能环保烘干装置 |
CA2973708C (en) * | 2017-07-18 | 2024-01-02 | Jorge Diaz | Method for efficient and effective drying. |
US10962889B2 (en) * | 2018-11-27 | 2021-03-30 | Applied Materials, Inc. | Method and apparatus for high throughput photomask curing |
CN114165996A (zh) * | 2021-12-16 | 2022-03-11 | 江苏天相捷新材料科技有限公司 | 一种螺旋式循环烘干器 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE118204C (de) * | ||||
GB148171A (en) * | 1919-02-11 | 1921-06-23 | Octave Alexandre Jean Baptiste | Improvements in heating or drying apparatus |
DE3433224A1 (de) * | 1984-09-10 | 1986-03-20 | Lohmann Gmbh & Co Kg, 5450 Neuwied | Trockenvorrichtung fuer bahnfoermige materialien |
JPH0692868B2 (ja) * | 1984-09-13 | 1994-11-16 | ビュ−ラ−・ア−ゲ− | 麺類乾燥機 |
DE3821848C1 (de) * | 1988-06-29 | 1989-02-16 | Herberts Gmbh, 5600 Wuppertal, De | |
DE8902342U1 (de) * | 1989-02-28 | 1989-05-03 | Gerätebau Schwarting KG, 7991 Eriskirch | Trocknungsvorrichtung |
CA2025676C (en) * | 1990-06-18 | 1993-06-29 | Daniel B. Hansen | Thermodynamic air envelope for food storage structure |
DE4019741A1 (de) * | 1990-06-21 | 1992-01-02 | Peter Kaehmann | Trockenstation fuer feuchtigkeit enthaltende materialien |
DE4215385A1 (de) * | 1992-05-11 | 1993-11-18 | Ibk Industriebedarf Gmbh | Vakuum-Trockenschrank |
DE4324488C2 (de) * | 1993-07-21 | 1998-02-05 | Flaekt Ab | Verfahren und Heißluft-Trockner zur Trocknung beschichteter Oberflächen |
SE504594C2 (sv) * | 1995-11-22 | 1997-03-10 | Sten Zeilon | Sätt för torkning inom ett hölje av foliematerial |
DE19907695C1 (de) * | 1999-02-23 | 2000-07-20 | Eisenmann Kg Maschbau | Wandplatte für die Wand eines Groß-Trockners |
-
2000
- 2000-09-14 DE DE10045878A patent/DE10045878A1/de not_active Withdrawn
-
2001
- 2001-09-07 DE DE50105140T patent/DE50105140D1/de not_active Expired - Fee Related
- 2001-09-07 WO PCT/CH2001/000541 patent/WO2002023108A1/de active IP Right Grant
- 2001-09-07 TR TR2003/00326T patent/TR200300326T2/xx unknown
- 2001-09-07 JP JP2002527711A patent/JP2004508530A/ja not_active Withdrawn
- 2001-09-07 AU AU2001281661A patent/AU2001281661A1/en not_active Abandoned
- 2001-09-07 AT AT01960051T patent/ATE287519T1/de not_active IP Right Cessation
- 2001-09-07 US US10/380,416 patent/US20040045183A1/en not_active Abandoned
- 2001-09-07 BR BR0113840-5A patent/BR0113840A/pt not_active IP Right Cessation
- 2001-09-07 RU RU2003110425/06A patent/RU2003110425A/ru not_active Application Discontinuation
- 2001-09-07 EP EP01960051A patent/EP1317647B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE50105140D1 (de) | 2005-02-24 |
JP2004508530A (ja) | 2004-03-18 |
DE10045878A1 (de) | 2002-03-28 |
ATE287519T1 (de) | 2005-02-15 |
EP1317647A1 (de) | 2003-06-11 |
US20040045183A1 (en) | 2004-03-11 |
RU2003110425A (ru) | 2004-10-10 |
WO2002023108A1 (de) | 2002-03-21 |
BR0113840A (pt) | 2003-06-03 |
AU2001281661A1 (en) | 2002-03-26 |
TR200300326T2 (tr) | 2003-09-22 |
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