DE218079C - - Google Patents

Info

Publication number
DE218079C
DE218079C DENDAT218079D DE218079DA DE218079C DE 218079 C DE218079 C DE 218079C DE NDAT218079 D DENDAT218079 D DE NDAT218079D DE 218079D A DE218079D A DE 218079DA DE 218079 C DE218079 C DE 218079C
Authority
DE
Germany
Prior art keywords
central tube
drum
suction
ventilation
sided
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.)
Active
Application number
DENDAT218079D
Other languages
German (de)
Publication of DE218079C publication Critical patent/DE218079C/de
Active 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
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/18—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles
    • F26B11/181—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles the receptacle being a foraminous, perforated or open-structured drum or drum-like container, e.g. rotating around a substantially horizontal or vertical axis; the receptacle being multiple perforated drums, e.g. in superimposed arrangement
    • F26B11/182—Arrangements for the supply or exhaust of gaseous drying medium, e.g. perforated tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Bei Trommeln mit einseitiger als auch bei solchen mit doppelseitiger Luftabsaugung oder Zuführung im Zentralrohr zeigt sich insbesondere bei größerem Trommelinhalt der Übelstand ungleichmäßiger Lüftung, dadurch hervorgerufen, daß beispielsweise bei Absaugung ' an der Anschlußseite des Saugrohres ein höherer Unterdruck entsteht als gegen das Ende des Zentralrohres bei einseitiger Absaugung bzw. gegen die Mitte bei doppelseitiger Absaugung. Dementsprechend gewinnt die Lüftung des Trommelinhaltes gegen die Stellen des großen Unterdruckes an Intensität, während gegen die Stellen geringeren Unterdruckes im Zentralrohr mangelhafte Lüftung auftritt. Damit verbunden sind örtliche Temperaturerhöhungen und nachteilige Beeinflussung des Keimprozesses. Vorliegende Erfindung will diesem Übelstande begegnen durch Einbau einer feststehenden Längswand g im Zentralrohr d bei doppelseitiger Luftführung. Dadurch werden im Zentralrohr d zwei getrennte Räume β und f geschaffen, in denen die größten Druckunterschiede je auf der gleichen Trommelseite liegen, wodurch bei der langsamen Drehung der Trommel ein Ausgleich der Lüftung im Trommelinhalt erzielt wird.In drums with one-sided as well as those with double-sided air suction or supply in the central tube, the disadvantage of uneven ventilation becomes apparent, especially with larger drum contents, caused by the fact that, for example, during suction, a higher negative pressure is created on the connection side of the suction pipe than at the end of the central pipe suction on one side or towards the middle with double-sided suction. Correspondingly, the ventilation of the drum contents increases in intensity towards the places of the high negative pressure, while insufficient ventilation occurs against the places of lower negative pressure in the central pipe. Associated with this are local increases in temperature and adverse effects on the germination process. The present invention aims to counteract this drawback by installing a fixed longitudinal wall g in the central tube d with air ducting on both sides. As a result, two separate spaces β and f are created in the central tube d , in which the greatest pressure differences are each on the same side of the drum, whereby a compensation of the ventilation in the drum contents is achieved with the slow rotation of the drum.

Claims (1)

Patent-Anspruch:Patent claim: Trockentrommel mit durchbrochenem Mittelrohr, durch das beidseitig Luft zu- oder abgeführt wird, dadurch gekennzeichnet, daß durch Anordnung der Längsscheidewand (g) im Mittelrohr (A) zwei Räume (e und f) geschaffen sind, deren Querschnitte von der einen nach der anderen Trommelstirnwand hin im umgekehrten Verhältnis zueinander zu- bzw. abnehmen.Drying drum with a perforated central tube through which air is supplied or discharged on both sides, characterized in that the arrangement of the longitudinal partition (g) in the central tube (A) creates two spaces (e and f) , the cross-sections of which are from one drum end wall to the other increase or decrease in inverse proportion to each other. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT218079D Active DE218079C (en)

Publications (1)

Publication Number Publication Date
DE218079C true DE218079C (en)

Family

ID=479338

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT218079D Active DE218079C (en)

Country Status (1)

Country Link
DE (1) DE218079C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285223A (en) * 1963-12-09 1966-11-15 Archer Daniels Midland Co Apparatus for coating granules

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285223A (en) * 1963-12-09 1966-11-15 Archer Daniels Midland Co Apparatus for coating granules

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