DE596529C - Roller hearth furnace - Google Patents
Roller hearth furnaceInfo
- Publication number
- DE596529C DE596529C DEO19219D DEO0019219D DE596529C DE 596529 C DE596529 C DE 596529C DE O19219 D DEO19219 D DE O19219D DE O0019219 D DEO0019219 D DE O0019219D DE 596529 C DE596529 C DE 596529C
- Authority
- DE
- Germany
- Prior art keywords
- rollers
- hearth furnace
- sheets
- roller hearth
- roller
- 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
Links
- 238000000137 annealing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
- F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Tunnel Furnaces (AREA)
Description
Rollenherdofen Zum Glühen und Normalisieren von Feinblechen sind ununterbrochen arbeitende Glühöfen im Gebrauch, bei welchen die Förderung der Bleche durch ein von außen angetriebenes Rollenbett erfolgt.Roller hearth furnace For annealing and normalizing thin sheets are uninterrupted working annealing furnaces in use, in which the conveying of the sheets through a externally driven roller bed takes place.
Um die Förderung der schon bei kleiner Entfernung der Unterstützungspunkte stark durchhängenden, teilweise sehr dünnen Bleche sicherzustellen, ist es unbedingt notwendig, die Rollen, wie die Abb. i andeutet, sehr nahe aneinanderzulegen. Da die Rollenachsen aus Gründen der Betriebssicherheit als Hohlachsen mit Wasserkühlung und die Rollen selbst aus hitzebeständigem Werkstoff zur Ausführung kommen; stellt sich der Bau dieser Ofen sehr teuer und wärmetechnisch sehr unvorteilhaft. Außerdem besitzt die reine Rollenförderung den Nachteil, daß die Rollen an den nur schmalen Auflageflächen der Bleche bei eintretender Durchbiegung der Bleche schleifen, wodurch eine örtliche Verletzung der bei der Glühung auf den Blechen stets auftretenden dünnen Oxydschicht eintritt.To promote the support points even at a small distance It is essential to ensure that the sheets are heavily sagging and sometimes very thin necessary to place the rollers very close to one another, as Fig. i suggests. There the roller axles for reasons of operational safety as hollow axles with water cooling and the rollers themselves are made of heat-resistant material; represents The construction of this furnace is very expensive and thermally very disadvantageous. aside from that the pure roller conveyance has the disadvantage that the rollers on the only narrow Grind the contact surfaces of the sheets when the sheets sag, which a local violation of the one that always occurs during annealing on the sheets thin oxide layer occurs.
Da diese Verletzung bei einer späteren Beizung der Bleche Fehlstellen ergibt, hat man verschiedentlich versucht, die Förderung des Wärmgutes durch schwingende Balken vorzunehmen. Mit derartigen Fördervorrichtungen ausgestattete Ofen sind aber in ihrem Aufbau sehr verwickelt und haben den Nachteil, daß infolge der Herddurchdringungen durch ungleichmäßige Erwärmung Streifenbildung auf den Blechen eintritt.Because this damage causes defects in the later pickling of the sheets results, attempts have been made on various occasions to promote the heat material by vibrating Make bars. Furnaces equipped with such conveying devices are, however very complex in their structure and have the disadvantage that as a result of the hearth penetrations streaking occurs on the sheets due to uneven heating.
Die vorliegende Erfindung stellt eine Fördervorrichtung dar, die durch Schaffung großer Auflageflächen gleicher Temperatur wie das Glühgut die dem Rollenförderer anhaftenden Fehler zu vermeiden sucht.The present invention is a conveyor device that is carried out by Creation of large contact surfaces at the same temperature as the annealing material that of the roller conveyor seeks to avoid clinging mistakes.
Der in der Abb.2 dargestellte Entwurf zeigt einen einfachen Bandförderer. An Stelle der bisher üblichen, in kurzer Entfernung aufeinanderfolgenden Achsen a mit Einzelrollen b (Abb. i) treten hier weit voneinander liegende Walzen c (Abb. 2) mit einem Mantel aus hitzebeständigem Blech. Auf diese Walzen sind mehrere nebeneinanderliegende dünne, aus hitzebeständigem Stahl bestehende end= lose Bänder e und ei aufgebracht, welche jeweils eine Walze abwechselnd mit den Nachbarrollen verbinden, und zwar derart, daß die durch das Rollengewicht f stets gespannten Bänder in ihrer Gesamtheit beim Antrieb der Walzen c ein bewegliches flaches Tragbett für die zu glühenden Bleche bilden.The design shown in Figure 2 shows a simple belt conveyor. Instead of the previously usual axes that follow one another at a short distance a with individual rollers b (Fig. i), rollers c (Fig. 2) with a jacket made of heat-resistant sheet metal. There are several adjacent rollers on these rollers thin, end = loose strips e and ei made of heat-resistant steel, which each alternately connect a roller with the neighboring rollers, namely such that the belts always tensioned by the roll weight f in their entirety when driving the rollers c a movable flat support bed for the glowing ones Form sheets.
Hierdurch werden die Nachteile des Rollenförderers (Schleifen der Bleche und-Beschädigung der Oxydhaut) ebenso vermieden wie die bei Hubbalkenförderern auftretende Streifenbildung.This eliminates the disadvantages of the roller conveyor (grinding the Sheets and damage to the oxide skin) are avoided as is the case with walking beam conveyors occurring banding.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEO19219D DE596529C (en) | Roller hearth furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEO19219D DE596529C (en) | Roller hearth furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE596529C true DE596529C (en) | 1934-05-03 |
Family
ID=7354934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEO19219D Expired DE596529C (en) | Roller hearth furnace |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE596529C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1209502B (en) * | 1963-03-29 | 1966-01-20 | Froehling Fa Josef | Device for transporting and stacking sheets |
-
0
- DE DEO19219D patent/DE596529C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1209502B (en) * | 1963-03-29 | 1966-01-20 | Froehling Fa Josef | Device for transporting and stacking sheets |
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