DE948679C - Vacuum belt dryer heated by radiation - Google Patents

Vacuum belt dryer heated by radiation

Info

Publication number
DE948679C
DE948679C DEF6666A DEF0006666A DE948679C DE 948679 C DE948679 C DE 948679C DE F6666 A DEF6666 A DE F6666A DE F0006666 A DEF0006666 A DE F0006666A DE 948679 C DE948679 C DE 948679C
Authority
DE
Germany
Prior art keywords
radiation
vacuum belt
belt dryer
belt
moist material
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
Application number
DEF6666A
Other languages
German (de)
Inventor
Dr Alfred Haltmeier
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Priority to DEF6666A priority Critical patent/DE948679C/en
Application granted granted Critical
Publication of DE948679C publication Critical patent/DE948679C/en
Expired 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
    • F26B17/023—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 material being a slurry or paste, which adheres to a moving belt-like endless conveyor for drying thereon, from which it may be removed in dried state, e.g. by scrapers, brushes or vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F26B5/041—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum for drying flowable materials, e.g. suspensions, bulk goods, in a continuous operation, e.g. with locks or other air tight arrangements for charging/discharging

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Drying Of Solid Materials (AREA)

Description

Inn Patent 934 698 ist ein Vakuumbandtrockner beschrieben, bei welchem das zu trocknende Gut in dünner Schicht auf ein in einem Vakuumraum umlaufendes endloses Band aufgebracht und unter der Einwirkung der von Heizelementen ausgehenden Strahlung getrocknet wird.Inn patent 934,698 describes a vacuum belt dryer in which the goods to be dried in a thin layer on a circulating in a vacuum space endless belt applied and under the action of the emanating from heating elements Radiation is dried.

In manchem Fällen bietet das Aufbringen des Feuchtgutes auf das Band Schwierigkeiten infolge mangelhafter Benetzung. Hierbei hat es sich als vorteilhaft erwiesen, das Band vor dein Aufbringen der zu trocknenden Gutschicht vorher zu befeuchten, z. B. mit Wasser oder mit dem Feuchtgut oder mit einer Mischung aus beiden.In some cases, the application of the moist material to the belt offers Difficulties due to insufficient wetting. It has proven to be advantageous here proven to moisten the tape before applying the layer of material to be dried, z. B. with water or with the moist material or with a mixture of both.

Gegenstand der Erfindung ist die Weiterausgestaltung des Gegenstandes des Hauptpatents durch die Anwendung einer rotierenden, mit Borsten besetzten Walze am Trockenband - vorzugsweise an der vorderen Bandumkehr oder am rücklaufenden Trum -, welche in einen Feuchtgut enthaltenden Trog eintaucht und bei ihrer Drehung das Band mit Feuchtigkeit benetzt.The subject of the invention is the further development of the object of the main patent through the use of a rotating roller fitted with bristles on the drying belt - preferably on the front belt reversal or on the return run -, which is immersed in a trough containing moist material and the Tape wetted with moisture.

Die Abbildung zeigt eine mögliche Anordnung dieser Befeuchtungswalze. Das Trockenband i läuft in dem Vakuumrawn 2 um und wird durch die Verteilungsvorrichtung 3, die mit dem Band den Verteilungsspalt 4 bildet, mit Feuchtgut belegt. Wenn die Benetzung schlecht ist, kann die Herstellung einer zusammenhängenden Feuchtgtmchicht auf dem Trockenband Schwierigkeiten bieten. In diesem Fall kann eine rotierende Befeuchtungswalze 5, welche in eine . mit Feuchtgut gefüllte Wanne 6 taucht, an denn Band angebracht werden. Die Zufuhr des Feuchtgutes zu der Wanne 6 kann beispielsweise durch eine Leitung 7 erfolgen, die von der Verteilungsrinne 8 der Zuteilungsvorrichtung 3 kommt und als überlaufleitung für .die Rinne,8 dient.The illustration shows a possible arrangement of this dampening roller. The drying belt i circulates in the vacuum rawn 2 and is through the distribution device 3, which forms the distribution gap 4 with the tape, covered with moist material. If the If wetting is poor, a cohesive layer of moisture can be produced present difficulties on the drying belt. In this case it can be a rotating Moistening roller 5, which in a. tub 6 filled with moist material emerges because tape must be attached. The supply of the moist material to the tub 6 can, for example take place through a line 7 leading from the distribution channel 8 of the metering device 3 comes and serves as an overflow line for .the gutter, 8.

Die Einführung des Feuchtgutes in den Vakuumraum geschieht durch die Leitung 9, die in den mit Feuchtgut gefüllten Sammelbehälter io eintaucht. Die Durchflußmenge der Leitung 9 wird mittels einer Fördereinrichtung, z. B. der Zahnradpumpe i i, kontrolliert.The introduction of the moist material into the vacuum space happens through the Line 9, which is immersed in the collecting container filled with moist material io. The flow rate the line 9 is by means of a conveyor, for. B. the gear pump i i, controlled.

Claims (1)

PATENTANSPRUCH: Durch Strahlung beheizter Vakuumbandtrockner nach Patent 934 698, dadurch gekennzeichnet, daß eine rotierende, mit Borsten besetzte Walze am Trockenband - vorzugsweise an der vorderen Bandumkehr oder unterhalb des rücklaufenden Trums - angebracht ist, welche in einen Feuchtgut enthaltenden Trog eintaucht und bei ihrer Drehung das Band mit Feuchtigkeit benetzt. PATENT CLAIM: Radiation-heated vacuum belt dryer according to patent 934 698, characterized in that a rotating roller with bristles is attached to the drying belt - preferably on the front belt reversal or below the returning strand - which is immersed in a trough containing moist material and as it rotates wets the tape with moisture.
DEF6666A 1951-07-01 1951-07-01 Vacuum belt dryer heated by radiation Expired DE948679C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF6666A DE948679C (en) 1951-07-01 1951-07-01 Vacuum belt dryer heated by radiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF6666A DE948679C (en) 1951-07-01 1951-07-01 Vacuum belt dryer heated by radiation

Publications (1)

Publication Number Publication Date
DE948679C true DE948679C (en) 1956-09-06

Family

ID=7085080

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF6666A Expired DE948679C (en) 1951-07-01 1951-07-01 Vacuum belt dryer heated by radiation

Country Status (1)

Country Link
DE (1) DE948679C (en)

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