DE2301377A1 - PROCEDURE FOR COMPARISON OF TEMPERATURE, ESPECIALLY IN THE REHEATING ZONE OF A TUNNEL OVEN - Google Patents
PROCEDURE FOR COMPARISON OF TEMPERATURE, ESPECIALLY IN THE REHEATING ZONE OF A TUNNEL OVENInfo
- Publication number
- DE2301377A1 DE2301377A1 DE19732301377 DE2301377A DE2301377A1 DE 2301377 A1 DE2301377 A1 DE 2301377A1 DE 19732301377 DE19732301377 DE 19732301377 DE 2301377 A DE2301377 A DE 2301377A DE 2301377 A1 DE2301377 A1 DE 2301377A1
- Authority
- DE
- Germany
- Prior art keywords
- temperature
- procedure
- comparison
- tunnel oven
- channel
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 5
- 238000003303 reheating Methods 0.000 title 1
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000010304 firing Methods 0.000 description 3
- 238000009966 trimming Methods 0.000 description 3
- 238000005204 segregation Methods 0.000 description 1
- 239000002699 waste material Substances 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
- F27B9/30—Details, accessories or equipment specially adapted for furnaces of these types
- F27B9/36—Arrangements of heating devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Tunnel Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
11Verfahren zur Vergleichmässigung der Temperatur insbesondere in der Anwärmzone eines Tunnelofens Es ist bekannt, dass in bestimmten Zonen von Tunnelöfen mit im wesentlichen horizontaler Strömung, insbesondere in der Anwärmzone, der Gasstrom unter der Ofendecke stark vortreibt. 11Procedure for equalizing the temperature, especially in the heating zone of a tunnel kiln It is known that in certain zones of tunnel kilns with an essentially horizontal flow, especially in the heating zone, the gas flow pushes strongly under the furnace roof.
Durch thermische Entmischung wird der Vortrieb weiter verstärkt und es werden die unteren Besatzbereiche wesentlich langsamer erwärmt als die oberen in der Anwärmzone. Dies führt zu einer Vergeudung von Brennzeit. Bisher wurde versucht, durch Umwälzeinrichtungen diesen negativen Erscheinungen zu begegnen.The propulsion is further strengthened by thermal segregation the lower trim areas are heated much more slowly than the upper ones in the heating zone. This leads to a waste of burning time. So far it has been tried to counter these negative phenomena by means of circulation devices.
Der Aufwand ist gross und der Erfolg nicht immer befriedigend.The effort is great and the success is not always satisfactory.
Der Vortrieb hat seine Ursache hauptsächlich in dem stets erforderlichen Abstand zwischen Besatz (1) und Ofendecke. Dieser Deckenspalt (2) verursacht einen beträchtlichen freien Strömungsquerschnitt, welcher die Strömung in oberen Besatzbereichen vortreiben lässt.The propulsion is mainly due to what is always necessary Distance between the trim (1) and the furnace roof. This gap in the ceiling (2) causes a considerable free flow cross-section, which the flow in the upper stocking areas can drive forward.
Abb. 1 und 2 zeigt je einen Grundriß eines Tunnelofens im Schnitt über der Sandrinne; durch den unteren Besatzbereich gemäss Schnitt AA. Abb. 3 zeigt einen Querschnitt B-B.Fig. 1 and 2 each show a plan of a tunnel furnace in section over the sand channel; through the lower trimming area according to section AA. Fig. 3 shows a cross-section B-B.
Der Erfindung liegt die Aufgabe zugrunde, die Strömung im Brennkanal zu vergleichmässigen, sodass die grossen Temperaturunterschiede zwischen oberem und unteren Besatzbereich beseitigt werden.The invention is based on the object of the flow in the combustion channel to equalize, so that the large temperature differences between the upper and lower trimming area can be eliminated.
"Verfahren zur Vergleichmässigung der Temperatur ..........", am 10.1.1973 Erfindungsgemäss wird vorgeschlagen, zur Kompensation des oberen Deckenspaltes (2) in der Anwärmzone eines Tunnelofens, beidseits im unteren Bereich des Brennkanals längs desselben verlaufende Gas-Ausgleichskanäle (3) anzulegen. Die zwischen Besatz (1) und Wagenbelag (4) einerseits und den Aussenwänden (6) liegenden Gas-Ausgleichsknälen (3) können dabei in ihrer senkrechten Ausdehnung bis herab zur Sandrinne (5) reichen und es werden hierbei besonders die äußeren Wagenränder einer zügigen Erwärmung unterzogen, was mit dem bisland bekannten Verfahren überhaupt nicht möglich war. Die Gas-Ausgleichskanäle (3) werden zweckmässigerweise so ausgeführt, dass sie eine Erweiterung des Brennkanals ab der unteren Hälfte des Brennkanals bis hinab zur Sandrinne (5) darstellen. Abb. 2 zeigt eine wechselseitig versetzte Anordnung der Gas-Ausgleichskanäle (3) in Längsrichtung um ausserdem gezielte Strömungen quer zur Brennkanalachse zu erzielen. Im Falle die Gas-Ausgleichskanäle (3) bis zur Sandrinne herab angelegt werden, so steht dies im Gegensatz zur herrschenden Lehre, nach der der Spalt zwischen feuerfestem Belag (4) des Brennwagens und Ofeninnenwand möglichst eng und über die ganze Ofenlänge gleich sein soll. Durch die Schaffung der grossen Gas-Ausgleichskanäle (3) wird der Luftwiderstand im Bereich dieser Gasausgleichskanäle herabgesetzt, sodass hierdurch mehr Gas strömt als unter der Ofendecke im Deckenspalt."Procedure for equalizing the temperature ..........", on 10.1.1973 According to the invention it is proposed to compensate for the upper ceiling gap (2) in the heating zone of a tunnel kiln, on both sides in the lower area of the firing channel create gas compensation ducts (3) running along the same. The one between the trimmings (1) and car covering (4) on the one hand and the outer walls (6) lying gas compensation ducts (3) can extend in their vertical extent down to the sand channel (5) and the outer edges of the wagon in particular are subject to rapid heating subjected to what was not at all possible with the previously known method. The gas compensation channels (3) are expediently designed so that they have a Expansion of the firing channel from the lower half of the firing channel down to the Represent sand channel (5). Fig. 2 shows an alternately offset arrangement of the Gas equalization channels (3) in the longitudinal direction to also provide targeted flows across to achieve the focal channel axis. In the case of the gas equalization channels (3) up to the sand channel are laid down, this is in contrast to the prevailing doctrine, according to which the gap between the refractory covering (4) of the kiln car and the inner wall of the furnace, if possible should be narrow and the same over the entire length of the oven. By creating the great Gas equalization channels (3) are the air resistance in the area of these gas equalization channels so that more gas flows through it than under the furnace ceiling in the ceiling gap.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732301377 DE2301377A1 (en) | 1973-01-12 | 1973-01-12 | PROCEDURE FOR COMPARISON OF TEMPERATURE, ESPECIALLY IN THE REHEATING ZONE OF A TUNNEL OVEN |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732301377 DE2301377A1 (en) | 1973-01-12 | 1973-01-12 | PROCEDURE FOR COMPARISON OF TEMPERATURE, ESPECIALLY IN THE REHEATING ZONE OF A TUNNEL OVEN |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2301377A1 true DE2301377A1 (en) | 1974-07-18 |
Family
ID=5868830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732301377 Pending DE2301377A1 (en) | 1973-01-12 | 1973-01-12 | PROCEDURE FOR COMPARISON OF TEMPERATURE, ESPECIALLY IN THE REHEATING ZONE OF A TUNNEL OVEN |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2301377A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2705783A1 (en) * | 1977-02-11 | 1978-08-24 | Haessler Andreas | Tunnel kiln with zigzag side walls - which provide uniform heating of stacks of workpieces even in wide kilns |
| DE3312337A1 (en) * | 1983-04-06 | 1984-10-18 | Didier Engineering Gmbh, 4300 Essen | Furnace for heating slabs, ingots, billets or the like products to be heated |
-
1973
- 1973-01-12 DE DE19732301377 patent/DE2301377A1/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2705783A1 (en) * | 1977-02-11 | 1978-08-24 | Haessler Andreas | Tunnel kiln with zigzag side walls - which provide uniform heating of stacks of workpieces even in wide kilns |
| DE3312337A1 (en) * | 1983-04-06 | 1984-10-18 | Didier Engineering Gmbh, 4300 Essen | Furnace for heating slabs, ingots, billets or the like products to be heated |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2568244B1 (en) | Method and device for firing ceramic blanks and oven | |
| DE2637646B2 (en) | Heating furnace | |
| DE1956495B2 (en) | Forehearth for glass processing machines | |
| DE2814250A1 (en) | MUFFLE FURNACE FOR MELTING GLASS | |
| EP0237791B1 (en) | Process and device for the cooling of the pit beneath the cars in a tunnel kiln | |
| DE3025801C2 (en) | Tunnel furnace for firing ceramic workpieces | |
| DE2301377A1 (en) | PROCEDURE FOR COMPARISON OF TEMPERATURE, ESPECIALLY IN THE REHEATING ZONE OF A TUNNEL OVEN | |
| EP0036609A1 (en) | Process and installation for the ignition of a sinter mixture | |
| DE2225782A1 (en) | Method of burning lime | |
| DE2512485A1 (en) | PROCEDURE FOR FIRING CERAMIC PRODUCTS IN A DISCONTINUOUS FURNACE AND FURNACE FOR CARRYING OUT THE PROCEDURE | |
| DE2721948A1 (en) | METHOD AND DEVICE FOR HEAT TREATMENT OF GOODS | |
| DE3434906C2 (en) | Device for preheating metallic material | |
| DE2029840C3 (en) | Bogie hearth furnace with flue gas circulation | |
| DE2540401B2 (en) | Fireproof tunnel furnace in sandwich construction | |
| DE2705783C2 (en) | Directly fired tunnel kiln for firing ceramic products | |
| DE10041132A1 (en) | Tunnel kiln used for firing bricks comprises kiln cars having supporting surfaces for plates and recesses | |
| DE2159842A1 (en) | Recuperative furnace | |
| DD130680B1 (en) | DEVICE FOR SEALING BETWEEN CHAMBER OVEN AND HERDWAGEN | |
| DE2133762B2 (en) | Tunnel furnace for the continuous firing or sintering of elongated ceramic moldings | |
| DE1508506A1 (en) | Tunnel furnace | |
| DE2356823A1 (en) | Lifting hearth furnace peripheral seal - comprising loose refractory slabs bridging gap between wall and hearth | |
| DE971368C (en) | Anchoring for coke oven batteries | |
| DE2643764C2 (en) | Chamber ring furnace | |
| DE14071C (en) | Improved system of pneumatic soft floors and malt kilns | |
| DE1959712C2 (en) | Industrial furnace for the heat treatment of wire coils |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHA | Expiration of time for request for examination |