EP0465951B1 - Séchoir à tapis par contact - Google Patents

Séchoir à tapis par contact Download PDF

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Publication number
EP0465951B1
EP0465951B1 EP91110723A EP91110723A EP0465951B1 EP 0465951 B1 EP0465951 B1 EP 0465951B1 EP 91110723 A EP91110723 A EP 91110723A EP 91110723 A EP91110723 A EP 91110723A EP 0465951 B1 EP0465951 B1 EP 0465951B1
Authority
EP
European Patent Office
Prior art keywords
gas
conveyor belt
heating plate
contact belt
upper heating
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
EP91110723A
Other languages
German (de)
English (en)
Other versions
EP0465951A1 (fr
Inventor
Werner Dr. Liedy
Werner Rindfleisch
Wolfgang Keil
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of EP0465951A1 publication Critical patent/EP0465951A1/fr
Application granted granted Critical
Publication of EP0465951B1 publication Critical patent/EP0465951B1/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 for supplying or controlling air or other gases for drying solid materials or objects
    • F26B21/50—Ducting arrangements from the source of air or other gases to the materials or objects being dried
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts propelling the materials over stationary surfaces
    • F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
    • 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

Definitions

  • the invention relates to a contact belt dryer, consisting of an endless conveyor belt for transporting a product to be dried, a lower heating plate arranged below the conveyor belt, an upper heating plate arranged above the conveyor belt, a gas distribution device for hot gas, arranged between the conveyor belt and the upper heating plate, and one Gas extraction device.
  • Contact belt dryers are used, for example, for drying dyes and pigments with frequent product changes.
  • the task was therefore to significantly increase the evaporation capacity of the contact belt dryer without impairing the ease of cleaning.
  • the gas distribution device consists of two gas outlet pipes arranged in parallel and in the same way from the upper heating plate, on each of which are arranged lances or nozzles which are offset in bundles and are inclined at 45 ° upwards. Further features of the contact belt dryer according to the invention are the subject of the dependent claim.
  • the contact belt dryer consists of an endless, driven conveyor belt 1, which is deflected via two rollers 2.
  • a lower heating plate 3 is arranged below the conveyor belt and an upper heating plate 4 is arranged above the conveyor belt.
  • the product 5 to be dried migrates through the contact belt dryer during the drying process.
  • Hot gas 7 flows into the contact belt dryer via the gas distribution device 6.
  • the gas distribution device consists of a pipe 6a for the gas inlet and two parallel gas outlet pipes 6b arranged between the conveyor belt and the upper heating plate - connected to the pipe for the gas inlet - which correspond to the length of the upper heating plate and which are equipped with lances or nozzles 6c. These lances or nozzles are staggered in bundles on both gas outlet pipes and are arranged at approx.
  • This arrangement ensures that the upper heating plate is blown with gas and overflowed on its entire underside.
  • the gas serves on the one hand to discharge the vapors - which flow out of the product when it dries - and on the other hand to transfer heat from the upper heating plate to the product.
  • This gas / vapor mixture is sucked out of the contact belt dryer via the gas suction device 8.
  • the speed of the outflowing gas should be 1-2 m / sec, based on the free cross-section.
  • the distance between the conveyor belt and the upper heating plate should be between 50 and 400 mm.
  • the evaporation performance of the contact belt dryer during the drying of solids and pigments could be improved by approx. 100% by means of this special gas distribution device.
  • the resulting evaporation capacity is so great that the contact belt dryer can be operated economically.
  • the advantage of this type of device remains, namely the very good and quick cleanability when changing products.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Decoration Of Textiles (AREA)

Claims (2)

  1. Séchoir de bande à contact, composé d'une bande transporteuse continue, pour le transport d'un produit à sécher, d'une plaque de chauffage inférieure, disposée au-dessous de la bande transporteuse, d'une plaque de chauffage supérieure, disposée au-dessus de la bande transporteuse, d'un dispositif distributeur de gaz pour du gaz chaud, disposé entre la bande transporteuse et la plaque de chauffage supérieure, et un dispositif d'aspiration de gaz, caractérisé en ce que le dispositif distributeur de gaz est composé de deux tubes de sortie de gaz, disposés parallèlement et à la même distance de la plaque de chauffage supérieure, sur lesquels sont disposées des lances ou buses, toutes décalées par faisceaux et inclinées de 45° vers le haut.
  2. Séchoir de bande à contact selon la revendication 1, caractérisé en ce que le dispositif distributeur de gaz est composé d'un tube d'amenée pour le gaz, auquel sont raccordés les deux tubes de sortie de gaz.
EP91110723A 1990-07-07 1991-06-28 Séchoir à tapis par contact Expired - Lifetime EP0465951B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4021710A DE4021710A1 (de) 1990-07-07 1990-07-07 Kontaktbandtrockner
DE4021710 1990-07-07

Publications (2)

Publication Number Publication Date
EP0465951A1 EP0465951A1 (fr) 1992-01-15
EP0465951B1 true EP0465951B1 (fr) 1993-05-26

Family

ID=6409877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91110723A Expired - Lifetime EP0465951B1 (fr) 1990-07-07 1991-06-28 Séchoir à tapis par contact

Country Status (5)

Country Link
EP (1) EP0465951B1 (fr)
AT (1) ATE89915T1 (fr)
DE (2) DE4021710A1 (fr)
DK (1) DK0465951T3 (fr)
ES (1) ES2044656T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4336736A1 (de) * 1993-10-28 1995-05-04 Bayer Ag Vorrichtung zum kontinuierlichen Filtrieren und Trocknen einer Feststoffsuspension
EP2330370A3 (fr) * 2009-12-07 2011-08-24 e&e Verfahrenstechnik GmbH Séchage de bande doté d'un chauffage efficace
KR102858770B1 (ko) * 2020-10-23 2025-09-10 주식회사 엘지화학 고흡수성 수지 건조 장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE453654A (fr) *
US1560589A (en) * 1922-05-25 1925-11-10 Bernard R Andrews Method of drying material
CH354027A (fr) * 1959-06-12 1961-04-30 Charmes Andre Séchoir
FR1361318A (fr) * 1962-11-13 1964-05-22 Hupp Corp Procédé et installation de traitement thermique par énergie rayonnante
FR1384072A (fr) * 1963-11-15 1965-01-04 Perfectionnements aux séchoirs à tapis pour produits pâteux

Also Published As

Publication number Publication date
EP0465951A1 (fr) 1992-01-15
DK0465951T3 (da) 1993-07-12
ATE89915T1 (de) 1993-06-15
DE59100130D1 (de) 1993-07-01
ES2044656T3 (es) 1994-01-01
DE4021710A1 (de) 1992-01-09

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