DE644125C - Steam-heated tube dryer with journal bearings - Google Patents

Steam-heated tube dryer with journal bearings

Info

Publication number
DE644125C
DE644125C DEZ22434D DEZ0022434D DE644125C DE 644125 C DE644125 C DE 644125C DE Z22434 D DEZ22434 D DE Z22434D DE Z0022434 D DEZ0022434 D DE Z0022434D DE 644125 C DE644125 C DE 644125C
Authority
DE
Germany
Prior art keywords
dryer
steam
standpipe
tube dryer
journal bearings
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
DEZ22434D
Other languages
German (de)
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.)
MASCHB AKT GES
ZEITZER EISENGIESSEREI
Original Assignee
MASCHB AKT GES
ZEITZER EISENGIESSEREI
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 MASCHB AKT GES, ZEITZER EISENGIESSEREI filed Critical MASCHB AKT GES
Priority to DEZ22434D priority Critical patent/DE644125C/en
Application granted granted Critical
Publication of DE644125C publication Critical patent/DE644125C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • F26B11/0404Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis with internal subdivision of the drum, e.g. for subdividing or recycling the material to be dried
    • F26B11/0418Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis with internal subdivision of the drum, e.g. for subdividing or recycling the material to be dried the subdivision consisting of a plurality of parallel tubes, e.g. through which the material to be dried is conveyed in single or multi-pass fashion
    • F26B11/0427Constructional details, e.g. arrangements of drives, supports, bearings, gas-sealing, heating medium supply or exhaust

Landscapes

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

Description

Bei der üblichen Bauweise der Schulzschen Röhrentrockner ist in der Regel ein Standrohr vorgesehen, an dessen Enden Zapfen angeordnet sind, die von den Lagerstellen des Trockners getragen werden. Das gesamte Gewicht der Rohreinrichtung des Trockners einschließlich des Mantels und der Stirnflächen hat das Standrohr aufzunehmen und über die Zapfen den Lagern mitzuteilen. Bei Röhrentrocknern mit sehr großen Heizflächen, wie sie heute gebaut werden, ergeben sich für die Standrohre Gewichtsbelastungen bis zu ioot und mehr. Besonders die Zapfenverbindungen mit dem Standrohr und den Trocknerstirnwänden unterliegen hierbei starker Beanspruchung. Man hat daher bereits vorgeschlagen, diese Zapfenverbindungen dadurch gänzlich in Wegfall zu bringen, daß man das Standrohr durch die Stirnflächen der Trockner hindurchtreten läßt, um es unmittelbar zur Verlagerung zu verwenden.In the usual design of the Schulz tube dryer, a standpipe is usually used provided, at the ends of which pins are arranged from the bearings of the dryer. The total weight of the dryer pipe equipment including the jacket and of the end faces has to accommodate the standpipe and communicate it to the bearings via the journals. In tube dryers with very large heating surfaces, as they are built today, the standpipes are subject to weight loads up to ioot and more. Especially the mortise and tenon joints with the The standpipe and the dryer front walls are subject to heavy loads. Man has therefore already proposed eliminating these tenon connections entirely to bring that you pass the standpipe through the end faces of the dryer leaves to use it immediately for relocation.

Um zu vermeiden, daß die erforderlichen Abmessungen der Standrohre und damit auch die Lagerdurchmesser für die Verlagerung der Röhrentrockner zu groß werden, schlägt die Erfindung folgende Maßnahmen zur Verringerung der Beanspruchung der Standrohre für Röhrentrockner vor:To avoid having the required dimensions of the standpipes and thus also the bearing diameter becomes too large for the relocation of the tube dryer, suggests the invention, the following measures to reduce the stress on the standpipes for tube dryer before:

Es sollen einmal die Stirnwände des Röhrentrockners als Körper konstanter Festigkeit ausgebildet werden, d. h. ihre Wandstärke soll nach außen hin abnehmen. Hierdurch läßt sich eine erhebliche Gewichtsersparnis für die Stirnwände erreichen, zum andern ergibt sich auch ein Gewinn für die Herstellung der Stirnwände, da sich die Löcher für die Trockenrohre bei der verringerten Wandstärke leichter und schneller einbringen lassen.The end walls of the tube dryer should be a body of constant strength be trained, d. H. their wall thickness should decrease towards the outside. Through this can achieve a significant weight saving for the end walls, for other there is also a profit for the production of the end walls, since the holes for the drying tubes with the reduced wall thickness easier and faster permit.

Weiterhin wird vorgeschlagen, um die Festigkeit des Standrohres nicht unnötig zu schwächen, die Öffnungen im Standrohr, die zur Zuleitung des Dampfes vom Standrohr zum Innern des Röhrentrockners dienen, auf eine große Länge des Standrohres zu verteilen. Heute ist es üblich, diese DampfzuführungsÖffnungen im ersten Fünftel oder Viertel der Standrohrlänge unterzubringen. Der Dampf soll gezwungen werden, an der Stirnfläche, an der die Kohle aufgegeben wird, entlang zu strömen. Diesen bekannten Vorteil auch bei einer weiten Verteilung der Öffnungen im Standrohr zu erreichen, greift die Erfindung zur Anordnung eines einseitig geschlossenen Blechzylinders um das Standrohr herum, der den aus dem Standrohr ausströmenden Dampf sammelt und zur Eintrittsstirnfläche des Röhrentrockners leitet. Durch die weite Verteilung der Öffnungen im Standrohr wird eine starke Schwächung der Biegefestigkeit des Standrohres vermieden. Die bereits zum Stande der Technik gehörenden Ablenkringe, die als Leitbleche das Standrohr umgeben und den aus den Löchern des Standrohres austretenden Dampf nach derIt is also proposed not to unnecessarily increase the strength of the standpipe weaken the openings in the standpipe that are used to feed the steam from the standpipe serve to the inside of the tube dryer, to distribute over a large length of the standpipe. Today it is common to have these steam supply openings in the first fifth or quarter the standpipe length. The steam should be forced to along which the coal is given up to flow. This well-known advantage even with a wide distribution of To achieve openings in the standpipe, the invention applies to the arrangement of a one-sided closed sheet metal cylinder around the standpipe, the flowing out of the standpipe Collects steam and directs it to the inlet face of the tube dryer. Due to the wide distribution of the openings in the Standpipe, a strong weakening of the bending strength of the standpipe is avoided. The deflection rings, which are already part of the state of the art, act as baffles as the standpipe surrounded and the steam emerging from the holes in the standpipe after the

Trocknerstirnwand hin ablenken, erfüllen den in der Erfindung angestrebten Zweck nicht. Bei einer weiten Verteilung der öffnungen^ im Standrohr vermögen solche Leitble S den Dampf nicht genügend zur Stirnfl des Trockners hinzulenken.Deflecting the dryer front wall do not fulfill the purpose sought in the invention. With a wide distribution of the openings ^ in the standpipe, such baffles are capable S not directing the steam sufficiently towards the front of the dryer.

Die Abbildung zeigt ein Beispiel der findung. Die Stirnfläche 3 des dargestellten Röhrentrockners ist im Gegensatz zur Stirnfläche 2 als Körper konstanter Festigkeit ausgebildet. Die Stärke der Wand 3 nimmt nach außen hin allmählich ab. Ferner ist das Standrohr mit weiter Verteilung der Dampfdurchlaßöffnungen dargestellt. DerThe figure shows an example of the discovery. The end face 3 of the illustrated In contrast to the end face 2, the tube dryer is a body of constant strength educated. The thickness of the wall 3 gradually decreases towards the outside. Furthermore, the standpipe with wider distribution of the Steam passage openings shown. Of the

ig Dampf tritt durch das Eintrittsrohr 6 und die Stopfbüchse 7 in das Innere des Standrohres ι ein. öffnungen 8 leiten den Dampf in das Innere eines Blechzylinders 9, der ihn seinerseits der Stirnfläche 3 im Innern des Trockners zuführt. Die Öffnungen 10 zwischen Blechzylinder und Trocknerinnenraum dienen zur Ableitung von Niederschlagwasser, das sich gegebenenfalls im Innern des Blech-ig steam passes through the inlet pipe 6 and the stuffing box 7 in the interior of the standpipe ι a. Openings 8 conduct the steam into the interior of a sheet metal cylinder 9, which in turn has the end face 3 inside the Dryer feeds. The openings 10 between the sheet metal cylinder and the interior of the dryer serve to drain off rainwater that may be found inside the sheet metal

. cylinders bildet.. cylinders forms.

Claims (2)

: Patentansprüche:: Claims: 1. Dampf beheizter Röhrentrockner mit Zapfenlagerung insbesondere der Bauart, bei welcher das Standrohr des Trockners an einem oder beiden Enden über die Stirnwand hinaus verlängert ist und unmittelbar als Lagerzapfen des Trockners dient, dadurch gekennzeichnet, daß die Wandstärke der Stirnplatten nach dem Rande zu abnimmt.1. Steam-heated tube dryer with journal bearings, in particular of the type, in which the standpipe of the dryer is extended at one or both ends beyond the end wall and directly serves as a journal of the dryer, characterized in that the wall thickness of the end plates after Edge to decrease. 2. Röhrentrockner nach' Anspruch !,dadurch gekennzeichnet, daß um den mit Dampfaustrittsöffnungen (8) versehenen Teil des Standrohres mit Abstand ein zylindrisches Führungsblech (9) gelegt ist, durch das der Dampf zur Eintrittsstirnfläche des Trockners geleitet wird.2. Tube dryer according to 'claim!, Characterized characterized in that around the part of the standpipe provided with steam outlet openings (8) at a distance a cylindrical Guide plate (9) is placed through which the steam is directed to the inlet face of the dryer. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEZ22434D 1935-04-26 1935-04-26 Steam-heated tube dryer with journal bearings Expired DE644125C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEZ22434D DE644125C (en) 1935-04-26 1935-04-26 Steam-heated tube dryer with journal bearings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ22434D DE644125C (en) 1935-04-26 1935-04-26 Steam-heated tube dryer with journal bearings

Publications (1)

Publication Number Publication Date
DE644125C true DE644125C (en) 1937-04-24

Family

ID=7625636

Family Applications (1)

Application Number Title Priority Date Filing Date
DEZ22434D Expired DE644125C (en) 1935-04-26 1935-04-26 Steam-heated tube dryer with journal bearings

Country Status (1)

Country Link
DE (1) DE644125C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3616154A1 (en) * 1986-05-14 1987-11-19 Krupp Gmbh Tubular drum dryer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3616154A1 (en) * 1986-05-14 1987-11-19 Krupp Gmbh Tubular drum dryer

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