EP0660059B1 - Dispositif pour sécher du matériau en vrac - Google Patents

Dispositif pour sécher du matériau en vrac Download PDF

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Publication number
EP0660059B1
EP0660059B1 EP94118377A EP94118377A EP0660059B1 EP 0660059 B1 EP0660059 B1 EP 0660059B1 EP 94118377 A EP94118377 A EP 94118377A EP 94118377 A EP94118377 A EP 94118377A EP 0660059 B1 EP0660059 B1 EP 0660059B1
Authority
EP
European Patent Office
Prior art keywords
container
air
pipe
loose material
drying
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
EP94118377A
Other languages
German (de)
English (en)
Other versions
EP0660059A1 (fr
Inventor
Achim Becker
Michael Zlotos
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.)
Somos GmbH
Original Assignee
Somos GmbH
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 Somos GmbH filed Critical Somos GmbH
Publication of EP0660059A1 publication Critical patent/EP0660059A1/fr
Application granted granted Critical
Publication of EP0660059B1 publication Critical patent/EP0660059B1/fr
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
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08—Humidity
    • F26B21/083—Humidity by using sorbent or hygroscopic materials, e.g. chemical substances, molecular sieves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/10—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in the open air; in pans or tables in rooms; Drying stacks of loose material on floors which may be covered, e.g. by a roof
    • F26B9/103—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in the open air; in pans or tables in rooms; Drying stacks of loose material on floors which may be covered, e.g. by a roof using fixed or removable drying air channels placed in the stack, e.g. horizontally or vertically

Definitions

  • the invention relates to a device for drying Bulk goods according to the preamble of claim 1.
  • Such a device is known from DE-GM 89 10 763.
  • the known device introduces the dried air through laterally flanged pipe to the bulk container is over an electric heater heats and flows in the lower area of the bulk container into the bulk material to be dried.
  • the Bulk material is heated with this device directly in the area of the container outlet.
  • the warm, dry Air flows upwards, heats the bulk goods and extracts them Moisture in the upper area of the container due to a Exhaust air outlet is suctioned off.
  • From DE 36 37 700 is also a device for drying known from bulk goods. There is the dry, warmed air fed to the center of the bulk goods container and flows at the lower end the container via an air distribution pipe.
  • a disadvantage of this known device is the fact that the air supply pipe is surrounded by bulk material and that immediately bulk material adjacent to the air supply pipe is heated very strongly and may be thermally damaged.
  • the entry temperature of the dry air in the Granules less than that measured with the temperature sensor Temperature, because on the way through the cold granulate or cold Return air down considerable radiation losses occur and so that the dry air cools down.
  • the invention is therefore based on the object Avoid disadvantages and a device for drying To create bulk goods, in which an even drying of the bulk material is possible with low temperature losses and an even temperature distribution both vertically as well is given horizontally.
  • the main advantage of the invention is that now the thermal energy of the dried air or dried gas is made available immediately there where it is needed, namely on the drying hopper to the temperature value as specified by the control. Undefined heat release can be effective with the invention be prevented.
  • the invention can be used for drying Plastic granules are used, they can be used in the same way Post-condensation of PET can be used. It is here too particularly important, a uniform temperature profile of the Granules can be reached over a long residence time.
  • a uniform temperature profile of the Granules can be reached over a long residence time.
  • a funnel wall heater be equipped.
  • this is thermally insulated Tube designed as a double-walled tube.
  • To improve the Thermal insulation can be the space between the two pipes evacuated or filled with a heat insulating gas
  • An alternative embodiment provides that the tube with a flexible, temperature-resistant hose inside Mistake. This also creates a double-walled tube. The heat transfer can be very much by a suitable hose material be greatly reduced.
  • the pipe for supplying the dried air at the upper end to introduce the container concentrically into this container or in Insert the upper area of the container laterally and over a Transfer sheet to a central position.
  • the heating device Heating the dry gas either inside the container extending pipe or directly at the entrance to the pipe Arrange containers. This can lead to heat loss be minimized.
  • the drawing shows: a bulk container for drying bulk material in a sectional view.
  • the drawing schematically shows a bulk container 10 with a filler neck 25 through which the bulk material 19 is fed is, a bulk material removal 23 and a device 12 for Blowing in the dry and warmed air.
  • a bulk material removal 23 To generate An air drying device 11 is provided for dry air. This is supplied with moist air via an exhaust air line 14. The dehumidified air reaches the through a supply air line 13 Bulk goods container 10.
  • a Air drying device 11 is generally known and described for example in DE-PS 31 31 471.
  • the Drying air is in a closed air circuit and is powered by a blower which Air drying device is arranged, moves.
  • the over the Line 13 to the container 10 supplied dry air passes through a heating station 15 and then at the top of the Container via a flange 16 in the interior of the Container.
  • a single-wall pipe flexible hose inside e.g. made of silicone or PUR, equip.
  • the inventive method is also used for the post-condensation of PET Facility able to increase efficiency and process reliability increase.
  • the drying process runs during this post-condensation similar to the drying process shown here, whereby Temperatures of 200 ° C and residence times of over 20 hours must be observed. Again, it is particularly important a uniform temperature profile of the granules over the long To achieve dwell time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Drying Of Solid Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (5)

  1. Dispositif servant à sécher des matières en vrac (19) avec au moins un réservoir de matières en vrac (10) qui est relié à un circuit fermé d'air avec un dispositif de séchage de l'air (11) et avec un dispositif de chauffage (15), et dans lequel l'air sec, chauffé ou du gaz sec, chauffé est mis en mouvement au moyen d'une soufflante à travers les matières en vrac, pour retirer l'humidité des matières en vrac, ensuite l'air qui s'échappe du réservoir des matières en vrac est à nouveau séché et est chauffé au moyen du dispositif de chauffage et est alors amené à nouveau au réservoir des matières en vrac, un raccord à la partie supérieure du réservoir des matières en vrac étant prévu pour l'amenée de l'air ou du gaz sec, et ce raccord débouchant dans un tube (17) qui est disposé sensiblement au milieu du réservoir, tube (17) dont l'extrémité inférieure est pourvue d'un distributeur d'air (18),
    caractérisé en ce que
    le tube (17) est pourvu au moins à l'intérieur du réservoir de matières en vrac (10) d'une isolation thermique.
  2. Dispositif servant à sécher des matières en vrac selon la revendication 1,
    caractérisé en ce que
    le tube (17) est constitué sous la forme d'un tube double.
  3. Dispositif servant à sécher des matières en vrac selon la revendication 1,
    caractérisé en ce que
    le tube (17) est pourvu d'un tuyau flexible qui se trouve à l'intérieur et qui résiste à la chaleur.
  4. Dispositif servant à sécher des matières en vrac selon l'une des revendications précédentes,
    caractérisé en ce que
    le tube (17) est disposé de façon concentrique à la partie terminale supérieure du réservoir (10) ou passe de façon concentrique à travers le réservoir.
  5. Dispositif servant à sécher des matières en vrac selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif de chauffage (15) est disposé pour chauffer l'air sec à l'intérieur du tube (17) qui s'étend dans le réservoir (10) ou directement à l'entrée du tube (17) dans le réservoir (10).
EP94118377A 1993-12-24 1994-11-23 Dispositif pour sécher du matériau en vrac Expired - Lifetime EP0660059B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4344593 1993-12-24
DE4344593A DE4344593C1 (de) 1993-12-24 1993-12-24 Vorrichtung zum Trocknen von Schüttgut

Publications (2)

Publication Number Publication Date
EP0660059A1 EP0660059A1 (fr) 1995-06-28
EP0660059B1 true EP0660059B1 (fr) 1999-06-09

Family

ID=6506307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94118377A Expired - Lifetime EP0660059B1 (fr) 1993-12-24 1994-11-23 Dispositif pour sécher du matériau en vrac

Country Status (5)

Country Link
US (1) US5509216A (fr)
EP (1) EP0660059B1 (fr)
JP (1) JP2695388B2 (fr)
AT (1) ATE181150T1 (fr)
DE (2) DE4344593C1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412467B (de) * 2001-05-31 2005-03-25 Luger Ges M B H Vorrichtung zur saug- oder druckförderung von staub- oder granulatförmigem material
DE10352106B4 (de) * 2003-11-04 2016-12-15 Roderich W. Gräff Verfahren zur Steuerung des Gasdurchsatzes durch Schüttgüter
ITPD20040258A1 (it) * 2004-10-18 2005-01-18 Moretto P A Srl Tramoggia per la deumidificazione di materiale particolato sfuso
DE202013100731U1 (de) * 2013-02-19 2014-05-20 Digicolor Gmbh Vorrichtung zum Trocknen von Kunststoffgranulat
CN103486840A (zh) * 2013-09-27 2014-01-01 深圳市福田区青少年科技教育协会 一种快速烘干器
CN112229165B (zh) * 2020-11-04 2023-11-07 中国科学院理化技术研究所 水平式热泵干燥系统及其工作方法
CN114812122A (zh) * 2022-05-24 2022-07-29 华能铜川照金煤电有限公司西川煤矿分公司 一种煤炭选矿用烘干装置

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB145224A (en) * 1919-05-17 1920-07-02 Charley Tinker An improved device for drying hay, straw and the like products
US1829477A (en) * 1925-12-30 1931-10-27 Douthitt Frank Howard Process of and apparatus for drying liquids
US3920624A (en) * 1974-01-14 1975-11-18 Du Pont Process for stripping residual solvent from polymer pellets and apparatus
US3913242A (en) * 1974-09-11 1975-10-21 Gear Co M W Preheater for grain dryer
US4038758A (en) * 1975-09-30 1977-08-02 Miller Russell A Grain dryer
DE2632054C3 (de) * 1976-07-16 1982-05-27 Hoechst Ag, 6000 Frankfurt Verfahren zur Trocknung von chloriertem Polyäthylen
GB1590532A (en) * 1976-08-04 1981-06-03 Exxon Research Engineering Co Elastomer extrusion drying with gas injection
DE2715790A1 (de) * 1977-04-07 1978-10-12 Polysius Ag Schwebegasvorwaermer fuer feingut
US4199872A (en) * 1977-09-08 1980-04-29 Foster Wheeler Energy Corporation Regeneration apparatus for producing sulfur dioxide
DE2800952A1 (de) * 1978-01-11 1979-07-12 Hoechst Ag Verfahren und anlage zur trocknung von chlorierten polymeren
US4241021A (en) * 1979-05-14 1980-12-23 Stauffer Chemical Company Fluidized bed reactor system
DE3162494D1 (en) * 1980-06-06 1984-04-12 Waagner Biro Ag Process for regulating the through-flow of a cooling bunker
DE3131471A1 (de) * 1981-03-20 1982-09-30 Roderich Wilhelm Dr.-Ing. 6100 Darmstadt Gräff Vorrichtung zum trocknen feuchter abluft aus einem oder mehreren schuettgut-trocknungsbehaeltern
DE3234431A1 (de) * 1982-09-17 1984-03-22 Roderich Wilhelm Dr.-Ing. 6100 Darmstadt Gräff Verfahren und vorrichtung zur abfuehrung von gasen und daempfen aus mit schuettgut gefuelltem trocknungstrichter
JPS59174130A (ja) * 1983-03-25 1984-10-02 株式会社日立製作所 電気掃除機
FR2551453B1 (fr) * 1983-08-31 1985-10-11 Fives Cail Babcock Gazeificateur de charbon en lit fluidise sous une haute pression
FR2569471A1 (fr) * 1984-08-24 1986-02-28 Surier Albert Sechoir a cereales
JPS6172126A (ja) * 1984-09-17 1986-04-14 Asahi Chem Ind Co Ltd 防禦壁体の構築方法
US4706390A (en) * 1986-04-14 1987-11-17 John A. Kitchen Ltd. Dehydrator
DE3637700A1 (de) * 1986-11-05 1988-05-19 Motan Gmbh Verfahren zum regenerieren einer mit feuchtigkeit beladenen trocknungspatrone sowie vorrichtung zur durchfuehrung eines solchen verfahrens
FR2626284B1 (fr) * 1988-01-26 1990-06-08 Total France Appareil pour le craquage catalytique en lit fluidise d'une charge d'hydrocarbures
DE8803539U1 (de) * 1988-03-16 1988-05-11 Amboß + Langbein KG, 5657 Haan Behälter für Kunststoff-Rohmaterial
DE3901597A1 (de) * 1988-03-16 1989-09-28 Amboss & Langbein Kg Behaelter fuer kunststoff-rohmaterial
JPH0612211B2 (ja) * 1988-10-27 1994-02-16 株式会社松井製作所 合成樹脂材料等の乾燥装置
DE3929898A1 (de) * 1989-09-08 1991-03-21 Graeff Roderich Wilhelm Verfahren und vorrichtung zum foerdern getrockneten kunststoffgranulats
DE8910764U1 (de) * 1989-09-09 1989-11-16 Strack-Norma Gmbh, 5600 Wuppertal Blockspanner zum Aufspannen von für Spritz- und Druckgießwerkzeuge bestimmten Formplatten
DE8910763U1 (de) * 1989-09-09 1991-01-17 Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg Vorrichtung zum Trocknen von Schüttgut
DE4006935A1 (de) * 1990-03-06 1991-09-12 Wacker Chemie Gmbh Fliessbettapparatur zum mischen, trocknen und beschichten von pulvrigem, koernigem und geformtem schuettgut
DE4029525A1 (de) * 1990-09-18 1992-03-19 Umwelt & Energietech Verfahren und vorrichtung zum trocknen von feststoffmaterialien in einem indirekt beheizten wirbelschichtbett
US5372791A (en) * 1992-04-20 1994-12-13 Foster Wheeler Energy Corporation Fluidized bed system and a fluidization and cooling nozzle for use therein

Also Published As

Publication number Publication date
DE4344593C1 (de) 1995-02-16
EP0660059A1 (fr) 1995-06-28
JPH07198256A (ja) 1995-08-01
DE59408392D1 (de) 1999-07-15
ATE181150T1 (de) 1999-06-15
US5509216A (en) 1996-04-23
JP2695388B2 (ja) 1997-12-24

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