DE963680C - Radiation dryer with reflector - Google Patents

Radiation dryer with reflector

Info

Publication number
DE963680C
DE963680C DEA12196D DEA0012196D DE963680C DE 963680 C DE963680 C DE 963680C DE A12196 D DEA12196 D DE A12196D DE A0012196 D DEA0012196 D DE A0012196D DE 963680 C DE963680 C DE 963680C
Authority
DE
Germany
Prior art keywords
reflector
radiation
lamps
radiation dryer
good
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
DEA12196D
Other languages
German (de)
Inventor
Dipl-Ing Karl August Lohausen
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.)
AEG AG
Original Assignee
AEG 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 AEG AG filed Critical AEG AG
Priority to DEA12196D priority Critical patent/DE963680C/en
Application granted granted Critical
Publication of DE963680C publication Critical patent/DE963680C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/28Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/283Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Description

Eine Strahlungstrocknunganlage der bisher üblichen Bauart ist im Querschnitt aufgebaut wie Fig. i zeigt. Das zu trocknende Gut i ruht auf einem luftdurchlässigen Rost 2 und wird oberseitig von den Strahlungslampen 3 bestrahlt. Die Trocknungsluft tritt, wie die Pfeile 4 zeigen, von, unten an das Gut heran, nimmt am Gut die Lösungsmitteldämpfe auf und strömt als Lackdunst 5 durch die Zwischenräume zwischen den Strahlungslampen 3 ab.A radiation drying system of the type customary up to now is shown in cross section constructed as Fig. i shows. The goods to be dried i rests on an air-permeable Grate 2 and is irradiated by the radiation lamps 3 on the top. The drying air comes, as the arrows 4 show, from below to the property, takes the solvent vapors on the property and flows as paint mist 5 through the spaces between the radiation lamps 3 from.

Diese bekannte Anordnung besitzt die Nachteile, daß erstens das Gut i nur oberseitig von der Strahlung erfaßt wird. Zweitens umströmen die warmen Lackdünste die Lampen und setzen diese so-,vie die elektrischen Leitungsverbindungen in schädlicher Weise hohen Temperaturen aus. Drittens setzen sich aus den Lackdünsten auf die Lampen und Spiegel Niederschläge von Bestandteilen und Umsetzungsprodukten der Lösungsmittel ab, welche die Strahlung behindern. Viertens ist der Wirkungsgrad dadurch ziemlich niedrig, daß die Strahlung, die das Gut nicht unmittelbar trifft, nutzlos verlorengeht.This known arrangement has the disadvantages that, firstly, the good i is only covered by the radiation on the top side. Second, the warm paint fumes flow around it the lamps and put these as well as the electrical line connections in harmful Detect high temperatures. Thirdly, the paint fumes settle on the lamps and mirror precipitates of constituents and reaction products of the solvents which obstruct the radiation. Fourth, it makes the efficiency quite good low, that the radiation which does not hit the good directly is wasted uselessly.

Diese Nachteile werden durch die neue Anordnung nach Fig. 2 behoben. Die Strahlungslampen 3 werden unterhalb des durchlässigen Rostes :2 angebracht und bestrahlen das Gut i unmittelbar von unten. Oberhalb des Gutes i und den oberen Abschluß des Trockenraumes bildend ist ein Rückstrahler 6 angeordnet. Dieser ist in Form eines Halbzylinders von elliptischem oder ähnlichem Querschnitt ausgeführt. Er kann auch aus einer Anzahl kleiner Einzelspiegel mit gekrümmter oder ebener Oberfläche gebildet sein, die so angeordnet sind, daß sie als Ganzes einen Rückstrahler in Form eines Halbzylinders bilden.These disadvantages are eliminated by the new arrangement according to FIG. The radiation lamps 3 are attached below the permeable grate: 2 and irradiate the good i directly from below. Above the good i and the upper ones A reflector 6 is arranged to form the end of the drying room. This is executed in the form of a half cylinder of elliptical or similar cross-section. It can also consist of a number of small individual mirrors with a curved or flat surface be formed, which are arranged so that they as a whole a reflector in Form a half cylinder.

Dieser Rückstrahler 6 wirft die Strahlung, die von den Lampen 4 an dem Gut i vorbeigeht, zurück, und zwar ganz oder zum Teil auf die nicht von den. Lampen bestrahlten Flächen des Gutes i. Infolgedessen wird dieses direkt oder indirekt auf allen Seiten angestrahlt und daher wesentlich gleichmäßiger getrocknet als nach Fig. i. Der Teil der vom Rückstrahler 6 reflektierten Strahlung, der nicht auf das Gut trifft, wird wiederum zum Teil von den Lampenspiegeln 3 erneut auf das Gut i oder den Rückstrahler geworfen. Es geht also bei Anordnung nach Fig.2 nur der Teilbetrag der Strahlung verloren, der durch die Zwischenräume zwischen den Lampen und dem Rückstrahler entweichen kann. Ferner tritt die Trocknungsluft bei den Pfeilen 4 von unten zwischen den Lampen 3 ein, wobei sie diese sowie die elektrischen Zuleitungen zu den Lampen kühlt. Die Trocknungsdünste 5 treten im First des Rückstrahlers 6 durch die Absaugestutzen 7 ins Freie. Diese durch natürlichen Wärmeauftrieb hervorgerufene aufwärts gerichtete Bewegung der Trocknungsdünste 5 kann durch einen motorgetriebenen Lüfter 8 noch verstärkt werden. Durch die geschlossene Form des eine Haube bildenden Rückstrahlers 6 werden die Lackdünste in geordneter Strömung wirksam den Ausaugestutzen 7 zugeführt. Dadurch entsteht eine schnelle Strömung der Lackdünste an der spiegelnden Oberfläche des Rückstrahlers 6, die verhindert, daß sich Niederschläge absetzen.This reflector 6 casts the radiation from the lamps 4 the good i passes, back, in whole or in part to the not of the. Lamps irradiated areas of the goods i. As a result, this will be direct or indirect irradiated on all sides and therefore dried much more evenly than after Fig. I. That part of the radiation reflected by the reflector 6 that does not hit the Good hits, the lamp mirrors 3 again in part hit good i or thrown the reflector. With the arrangement according to FIG. 2, only the partial amount works of radiation lost through the spaces between the lamps and the Reflector can escape. Furthermore, the drying air occurs at the arrows 4 from below between the lamps 3, which they and the electrical leads to the lamps cools. The drying vapors 5 occur in the ridge of the reflector 6 through the suction nozzle 7 to the outside. This caused by natural heat buoyancy upward movement of the drying vapors 5 can be carried out by a motor-driven Fan 8 can be reinforced. Due to the closed shape of the hood Reflector 6, the paint fumes are effective in an orderly flow the Ausaugesutzen 7 supplied. This creates a fast flow of paint fumes on the reflective surface Surface of the reflector 6, which prevents deposits from settling.

Claims (3)

PATENTANSPRÜCHE: i. Strahlungstrockner mit Rückstrahler, dadurch gekennzeichnet, daß unterhalb eines durchlässigen, das zu trocknende Gut tragenden Rostes Strahlungslampen und oberhalb des Gutes, den oberen Abschluß eines Trocknungsraumes bildend, Rückstrahler angeordnet sind. PATENT CLAIMS: i. Radiation dryer with reflector, characterized in that that beneath a permeable grate carrying the material to be dried, radiation lamps and above the property, forming the upper end of a drying room, reflectors are arranged. 2. Strahlungstrockner nach Anspruch i, dadurch gekennzeichnet, daß der Rückstrahler in seinem First einen Absaugestutzen hat. 2. Radiation dryer according to claim i, characterized in that that the reflector has a suction nozzle in its ridge. 3. Strahlungstrockner nach Anspruch 2, dadurch gekennzeichnet, daß der Absaugestutzen an einem Lüfter angeschlossen ist. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 743 076; USA.-Patentschrift N r. 2 236 398. Entgegengehaltene ältere Rechte: Deutsches Patent Nr. 761 999.3. Radiation dryer according to claim 2, characterized in that the suction nozzle is connected to a fan. Documents considered: German Patent No. 743 076; U.S. Patent No. 2 236 398. Earlier rights cited: German Patent No. 761 999.
DEA12196D 1944-02-15 1944-02-15 Radiation dryer with reflector Expired DE963680C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA12196D DE963680C (en) 1944-02-15 1944-02-15 Radiation dryer with reflector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA12196D DE963680C (en) 1944-02-15 1944-02-15 Radiation dryer with reflector

Publications (1)

Publication Number Publication Date
DE963680C true DE963680C (en) 1957-05-09

Family

ID=6922448

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA12196D Expired DE963680C (en) 1944-02-15 1944-02-15 Radiation dryer with reflector

Country Status (1)

Country Link
DE (1) DE963680C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1139778B (en) * 1959-02-07 1962-11-15 Braun Ag Dip device for painting the water

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2236398A (en) * 1939-04-17 1941-03-25 New Wrinkle Inc Apparatus for drying finishes
DE743076C (en) * 1942-07-03 1943-12-17 Aeg Device for heating workpieces
DE761999C (en) * 1942-07-03 1953-09-28 Aeg Device for drying painted objects by irradiating luminous bodies

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2236398A (en) * 1939-04-17 1941-03-25 New Wrinkle Inc Apparatus for drying finishes
DE743076C (en) * 1942-07-03 1943-12-17 Aeg Device for heating workpieces
DE761999C (en) * 1942-07-03 1953-09-28 Aeg Device for drying painted objects by irradiating luminous bodies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1139778B (en) * 1959-02-07 1962-11-15 Braun Ag Dip device for painting the water

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