EP1317647B1 - Doppelhüllen-trockner - Google Patents

Doppelhüllen-trockner Download PDF

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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
Application number
EP01960051A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1317647A1 (de
Inventor
Bernd Watzinger
Bernhard Fritsche
Franz Aebli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Buehler AG
Original Assignee
Aebli Franz
Fritsche Bernhard
Watzinger Bernd
Buehler AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aebli Franz, Fritsche Bernhard, Watzinger Bernd, Buehler AG filed Critical Aebli Franz
Publication of EP1317647A1 publication Critical patent/EP1317647A1/de
Application granted granted Critical
Publication of EP1317647B1 publication Critical patent/EP1317647B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)
EP01960051A 2000-09-14 2001-09-07 Doppelhüllen-trockner Expired - Lifetime EP1317647B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10045878 2000-09-14
DE10045878A DE10045878A1 (de) 2000-09-14 2000-09-14 Doppelhüllen-Trockner
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 (xx)
EP (1) EP1317647B1 (xx)
JP (1) JP2004508530A (xx)
AT (1) ATE287519T1 (xx)
AU (1) AU2001281661A1 (xx)
BR (1) BR0113840A (xx)
DE (2) DE10045878A1 (xx)
RU (1) RU2003110425A (xx)
TR (1) TR200300326T2 (xx)
WO (1) WO2002023108A1 (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE118204C (xx) *
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 (xx) * 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
WO1991019864A1 (en) * 1990-06-18 1991-12-26 Hansen Rice, Inc. 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
SE9504183L (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

Also Published As

Publication number Publication date
JP2004508530A (ja) 2004-03-18
US20040045183A1 (en) 2004-03-11
BR0113840A (pt) 2003-06-03
ATE287519T1 (de) 2005-02-15
EP1317647A1 (de) 2003-06-11
RU2003110425A (ru) 2004-10-10
AU2001281661A1 (en) 2002-03-26
DE50105140D1 (de) 2005-02-24
WO2002023108A1 (de) 2002-03-21
TR200300326T2 (tr) 2003-09-22
DE10045878A1 (de) 2002-03-28

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