DE4021711A1 - CONTACT TAPE DRYER - Google Patents

CONTACT TAPE DRYER

Info

Publication number
DE4021711A1
DE4021711A1 DE4021711A DE4021711A DE4021711A1 DE 4021711 A1 DE4021711 A1 DE 4021711A1 DE 4021711 A DE4021711 A DE 4021711A DE 4021711 A DE4021711 A DE 4021711A DE 4021711 A1 DE4021711 A1 DE 4021711A1
Authority
DE
Germany
Prior art keywords
heating plate
conveyor belt
gas
contact
dryer
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.)
Withdrawn
Application number
DE4021711A
Other languages
German (de)
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
Priority to DE4021711A priority Critical patent/DE4021711A1/en
Priority to ES91110722T priority patent/ES2044655T3/en
Priority to DK91110722.5T priority patent/DK0465950T3/en
Priority to EP91110722A priority patent/EP0465950B1/en
Priority to DE91110722T priority patent/DE59100480D1/en
Priority to AT91110722T priority patent/ATE95914T1/en
Publication of DE4021711A1 publication Critical patent/DE4021711A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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 or elements attached to endless belts or chains 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 or elements attached to endless belts or chains 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
    • 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
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • 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

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)

Abstract

Contact belt dryer, consisting of an endless conveyor belt for the transport of 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 and a gas extraction device, the gas distribution device being integrated into the upper heating plate and designed as a perforated plate.

Description

Die Erfindung betrifft einen Kontaktbandtrockner, bestehend aus einem endlosen Förderband für den Transport eines zu trocknenden Produktes, einer unterhalb des Förderbandes angeordneten unteren Heizplatte, einer oberhalb des Förderbandes angeordneten oberen Heizplatte, einer Gasvertei­ lungseinrichtung für heißes Gas und einer Gasabsaugeinrichtung.The invention relates to a contact belt dryer consisting of a endless conveyor belt for transporting a product to be dried, a lower heating plate arranged below the conveyor belt, one arranged above the conveyor belt upper heating plate, a gas distributor processing device for hot gas and a gas extraction device.

Kontaktbandtrockner werden beispielsweise für die Trocknung von Farb­ stoffen und Pigmenten bei häufigem Produktwechsel eingesetzt.Contact belt dryers are used, for example, for drying paint substances and pigments used in frequent product changes.

Es ist bekannt, bei solchen Kontaktbandtrocknern - die bei häufigem Produktwechsel leicht gereinigt werden können - die Gasführung, im wesent­ lichen notwendig zur Brüdenausschleusung - Brüden aus dem zu trocknenden Produkt - über das auf dem Förderband liegende und durch den Kontaktband­ trockner hindurchlaufende zu trocknende Produkt strömen zu lassen. Die dabei erzielbaren Verdampfungsleistungen sind jedoch so gering, daß ein wirtschaftlicher Betrieb - im Vergleich zu anderen Trocknertypen, bei­ spielsweise einem Trockenschrank - nicht möglich ist.It is known with such contact belt dryers - those with frequent Product changes can be cleaned easily - the gas flow, essentially necessary for evacuation of vapors - vapors from the material to be dried Product - over the lying on the conveyor belt and through the contact belt Allow product to be dried to flow through the dryer. The achievable evaporation rates are so low that a economical operation - compared to other dryer types, at for example a drying cabinet - is not possible.

Es stellte sich daher die Aufgabe, die Verdampfungsleistung des Kontakt­ bandtrockners deutlich zu erhöhen, ohne die Reinigungsfreundlichkeit zu beeinträchtigen.It was therefore the task of evaporating the contact to increase belt dryers significantly without being easy to clean affect.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Gasverteilungs­ einrichtung in die obere Heizplatte integriert und als Lochplatte ausge­ bildet ist.This object is achieved in that the gas distribution device integrated in the upper heating plate and made as a perforated plate forms is.

Weitere Merkmale des erfindungsgemäßen Kontaktbandtrockners sind Gegen­ stand der Unteransprüche.Further features of the contact belt dryer according to the invention are counter stood the subclaims.

Ein Ausführungsbeispiel der Erfindung mit den wesentlichen erfindungs­ gemäßen Merkmalen ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention with the essential fiction contemporary features is shown in the drawing and is shown below described in more detail.

Fig. 1 zeigt einen Längsschnitt durch den Kontaktbandtrockner, Fig. 1 shows a longitudinal section through the contact belt dryer,

Fig. 2 zeigt einen Schnitt A-A durch den Kontaktbandtrockner. Fig. 2 shows a section AA through the contact belt dryer.

Der Kontaktbandtrockner besteht aus einem endlosen, angetriebenen Förder­ band 1, das über zwei Rollen 2 umgelenkt wird. Unterhalb des Förderbandes ist eine untere Heizplatte 3 und oberhalb des Förderbandes eine obere Heizplatte 4 angeordnet. Das zu trocknende Produkt 5 wandert während des Trocknungsvorganges durch den Kontaktbandtrockner hindurch. Die obere Heizplatte ist hierbei als Lochplatte 6 ausgebildet. Das dem Kontaktband­ trockner zuströmende heiße Gas 7 wird über eine senkrecht zur Anströmrich­ tung des Gases angeordnete Prallplatte 8 umgelenkt, strömt anschließend durch die gelochte obere Heizplatte hindurch und über das zu trocknende Produkt hinweg. Das Gas dient einerseits zur Ausschleusung der Brüden - die bei der Trocknung des Produktes aus demselben ausströmen - und andererseits zur Wärmezufuhr an das Produkt.The contact belt dryer consists of an endless, driven conveyor belt 1 , which is deflected by 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. The upper heating plate is designed as a perforated plate 6 . The hot gas 7 flowing into the contact belt dryer is deflected via a baffle plate 8 arranged perpendicular to the gas flow direction, then flows through the perforated upper heating plate and over the product to be dried. The gas is used on the one hand to discharge the vapors - which flow out of the product when it dries - and on the other hand to supply heat to the product.

Dieses Gas-/Brüdengemisch wird über die Gasabsaugeinrichtung 9 aus dem Kontaktbandtrockner abgesaugt. Hierbei sollte die Geschwindigkeit des abströmenden Gases 1-2 m/sek, bezogen auf den freien Querschnitt, betra­ gen. Der Abstand zwischen Förderband und oberer Heizplatte -Lochplatte - sollte zwischen 100 und 300 mm liegen.This gas / vapor mixture is sucked out of the contact belt dryer via the gas suction device 9 . 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 - perforated plate - should be between 100 and 300 mm.

Der Lochdurchmesser in der Lochplatte sollte zwischen 1 und 4 mm liegen, der Lochabstand sollte 10 bis 70 mm betragen.The hole diameter in the perforated plate should be between 1 and 4 mm, the hole spacing should be 10 to 70 mm.

Es versteht sich von selbst, daß die Lochplatte auch mit Schlitzdüsen oder ähnlichen Ausführungsformen hergestellt werden kann.It goes without saying that the perforated plate also with slot nozzles or similar embodiments can be made.

Überraschenderweise konnte mittels dieser speziellen Gasverteilungs­ einrichtung die Verdampfungsleistung des Kontaktbandtrockners bei der Trocknung von Feststoffen und Pigmenten um ca. 100% verbessert werden. Die resultierende Verdampfungsleistung ist so groß, daß der Kontaktband­ trockner wirtschaftlich betrieben werden kann. Gleichzeitig bleibt der Vorzug dieses Apparatetyps erhalten, nämlich die sehr gute und schnelle Reinigbarkeit bei Produktwechsel.Surprisingly, using this special gas distribution the evaporation capacity of the contact belt dryer at the Drying of solids and pigments can be improved by approx. 100%. The resulting evaporation power is so great that the contact band dryer can be operated economically. At the same time, the Preserved the advantage of this type of apparatus, namely the very good and fast one Cleanability when changing products.

Claims (3)

1. Kontaktbandtrockner, bestehend aus einem endlosen Förderband für den Transport eines zu trocknenden Produktes, einer unterhalb des Förder­ bandes angeordneten unteren Heizplatte, einer oberhalb des Förder­ bandes angeordneten oberen Heizplatte, einer Gasverteilungseinrichtung für heißes Gas und einer Gasabsaugeinrichtung, dadurch gekennzeichnet, daß die Gasverteilungseinrichtung in die obere Heizplatte integriert und als Lochplatte ausgebildet ist.1. Contact belt dryer, consisting of an endless conveyor belt for the transport of 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 and a gas extraction device, characterized in that the gas distribution device is integrated in the upper heating plate and is designed as a perforated plate. 2. Kontaktbandtrockner nach Anspruch 1, dadurch gekennzeichnet, daß die Lochdurchmesser in der Lochplatte 1 bis 4 mm betragen.2. Contact belt dryer according to claim 1, characterized in that the Hole diameter in the perforated plate is 1 to 4 mm. 3. Kontaktbandtrockner nach Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Lochabstände 10 bis 70 mm betragen.3. Contact belt dryer according to claims 1 and 2, characterized in that the hole spacing is 10 to 70 mm.
DE4021711A 1990-07-07 1990-07-07 CONTACT TAPE DRYER Withdrawn DE4021711A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE4021711A DE4021711A1 (en) 1990-07-07 1990-07-07 CONTACT TAPE DRYER
ES91110722T ES2044655T3 (en) 1990-07-07 1991-06-28 CONTACT TAPE DRYERS.
DK91110722.5T DK0465950T3 (en) 1990-07-07 1991-06-28 Contact Belt Dryer
EP91110722A EP0465950B1 (en) 1990-07-07 1991-06-28 Contact belt dryer
DE91110722T DE59100480D1 (en) 1990-07-07 1991-06-28 Contact belt dryer.
AT91110722T ATE95914T1 (en) 1990-07-07 1991-06-28 CONTACT BELT DRYER.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4021711A DE4021711A1 (en) 1990-07-07 1990-07-07 CONTACT TAPE DRYER

Publications (1)

Publication Number Publication Date
DE4021711A1 true DE4021711A1 (en) 1992-01-09

Family

ID=6409878

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4021711A Withdrawn DE4021711A1 (en) 1990-07-07 1990-07-07 CONTACT TAPE DRYER
DE91110722T Expired - Lifetime DE59100480D1 (en) 1990-07-07 1991-06-28 Contact belt dryer.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE91110722T Expired - Lifetime DE59100480D1 (en) 1990-07-07 1991-06-28 Contact belt dryer.

Country Status (5)

Country Link
EP (1) EP0465950B1 (en)
AT (1) ATE95914T1 (en)
DE (2) DE4021711A1 (en)
DK (1) DK0465950T3 (en)
ES (1) ES2044655T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4336736A1 (en) * 1993-10-28 1995-05-04 Bayer Ag Device for continuously filtering and drying a solid suspension
EP2972030B1 (en) * 2013-03-15 2019-05-08 E. & J. Gallo Winery Dryer using adjustable conditioned air flow
CN103148689B (en) * 2013-03-27 2014-10-15 上海化工研究院 Band drying device for preparing polytetrafluoroethylene (PTFE) resin polymerized by dispersion method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE453654A (en) *
FR1384072A (en) * 1963-11-15 1965-01-04 Improvements to carpet dryers for pasty products
US3403456A (en) * 1967-02-14 1968-10-01 White Consolidated Ind Inc Impingement type drying apparatus
US3525164A (en) * 1968-12-10 1970-08-25 Wolverine Corp Apparatus for gaseous treatment of moving webs
DE58902754D1 (en) * 1988-08-22 1992-12-24 Robert Baer METHOD AND DEVICE FOR DRAINING WATER-BASED MEASURES.

Also Published As

Publication number Publication date
ES2044655T3 (en) 1994-01-01
EP0465950A1 (en) 1992-01-15
EP0465950B1 (en) 1993-10-13
DE59100480D1 (en) 1993-11-18
ATE95914T1 (en) 1993-10-15
DK0465950T3 (en) 1994-01-03

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