DE2206536C2

DE2206536C2 - Tunnel furnace

Info

Publication number: DE2206536C2
Application number: DE19722206536
Authority: DE
Inventors: Gregor 4530 Ibbenbueren Buschermoehle
Original assignee: Keller Ofenbau 4533 Laggenbeck GmbH
Current assignee: Keller Ofenbau 4533 Laggenbeck GmbH
Priority date: 1972-02-11
Filing date: 1972-02-11
Publication date: 1973-09-27
Also published as: DE2206536A1; DE2206536B1

Description

frei stehenden Längswänden oder bei außer Betrieb befindlicher Tunnelofeneinheit ein Temperaturgefälle quer zur Längsachse des Tunnelofens vermieden.free-standing longitudinal walls or a temperature gradient when the tunnel furnace unit is not in operation avoided transversely to the longitudinal axis of the tunnel kiln.

Die Warmluft oder Kühlluft wird dabei über einen Sammler 6 — wie bei der Anordnung nach F i g. 3 der Zeichnung gezeigt — unmittelbar in die Kanäle 4 bzw. 5 eingeleitet. Diese Luft gelangt dann als Abluft über Sammler 7 und den Rohrkanal 10 in die Trocknerei bzw. wird nach erfolgtem Wiederaufwärmen im Umluftbetrieb in d.e Kanäle 4, 5 wederThe warm air or cooling air is thereby via a collector 6 - as in the arrangement according to F i g. 3 of the drawing - introduced directly into the channels 4 and 5, respectively. This air then gets there as exhaust air via collector 7 and pipe duct 10 into the drying plant or is rewarmed after it has been rewarmed in recirculation mode in the channels 4, 5 neither

""zwischen zwei benachbarten Tunnelofeneinh.iten A B ist eine Dehnungsfuge 8 vorgesehen, welche mu einem Isoliermaterial 9 aufgefüllt ist. Die Kanäle 4, _s können gegebenenfalls auch mit Luft unterschiedlicher Temperatur beaufschlagt werden.An expansion joint 8 is provided between two adjacent tunnel furnace units AB , which must be filled with an insulating material 9. The channels 4, _s can optionally also have air at different temperatures applied to them.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 21 2

η. . from this publication already the idea as

[Breath claim: _{scarcely hervori jn the Zw} i _sc henwänden channels for

Tunnel furnace, consisting of several, to be provided alongside the passage of air,
The individual firing channels of this known operable, one firing channel having 5 tunnel kiln can always only be installed at the same time that serves between two adjacent tunnel goods and through obliquely upwardly extending furnace units (A, B) an expansion joint (8) filled with insulating material (9) is provided with the combustion ducts, and there is a bond. This is disadvantageous insofar as the fact that in the longitudinal walls (1, 2) of each individual combustion ducts only closed ducts (4, S) for the peratu with the same Iemheit (/ l, B). and with the same firing curve, hot air or cooling air are arranged. can, so that in the individual firing channels always

only one kiln of the same material composition

i ₅ or the same format can be burned Das

Firing of various types of briquettes, as often happens in brickworks, is in this case

The invention relates to a tunnel kiln, impossible.

consisting of several, side by side based on this state of the art operable and independently operable, an ao, the object of the invention is to provide a tunnel furnace unit having a tunnel firing channel, the furnace of which has channel systems with multiple, side by side firing longitudinal walls. The German patent specification 403 630 shows a ^{firing channel that is independent of one another:} g with lower ovens of this type with two closely spaced different temperatures and different tunnel oven units. Assuming that 25 firing curves can be operated,
Assuming that both units are in operation, this object is achieved according to the invention in that there is a heat transfer only through the outside, that between two adjacent longitudinal side walls of the units units there is a space filled with insulating material, while as a result of the lack of Temperaturungsstuge is provided, and that in the longitudinal difference through the side-by-side channels, which are closed in the longitudinal walls of each unit, no heat transfer takes place. the hot air or cooling air are arranged.
The consequence of this is that the longitudinal outer walls lying apart from one another are colder than the tunnel kiln in that each structural unit d - s adjacent longitudinal outer walls of the same are completely independent of the other, adjacent kiln. This results in a temperature gradient in the standing unit, since Ternpe firing material is set so that the temperature of the same decreases in temperature differences in the firing channel as a result of the unequal direction of the free-standing outer walls. moderate heating of the walls by appropriate The consequence of this is a deterioration in quality.

walls, as the material to be fired does not meet the required 40 The division of the tunnel kiln into structural units borrowed firing temperature can be fired. is except-es with regard to the effort involved Of course, balancing the firing temperature can be quite cheap, as this simplifies the construction can be achieved in that the burner can be designed in subjects and, moreover, the the proximity of the free-standing outer wall by building units for firing at different heights Fuel supply and heat loss are set up side by side in any number same. This measure leads however to the extent that it can be.

does not give a satisfactory firing result. The tunnel furnace according to the invention is shown below because local overheating under the burners is often illustrated with the help of the drawing. The drawings appear. tion shows in a purely schematic manner

Moreover, the known ovens can only ever show a cross section through one of two

jointly, and then only with the same temperature tunnel oven units existing tunnel oven according to

rature, because as a result of the one-sided of the invention,

or different temperature exposure F i g. FIG. 2 is a top view of FIG. ^{2 rotated by 90 r}

the extent of the various walls, in particular the arrangement according to FIG. 1,

which the partition wall is different, whereby 55 F i g. 3 shows a section on a reduced scale, the temperature gradient in the material to be fired is too great to be measured along the line III-III in FIG.
to ensure good firing results. The tunnel kiln according to the invention consists in the German Auslegeschrift 1 099 435 shows an embodiment shown in the drawing consisting of a multi-lane tunnel kiln, in which the two tunnel kiln units A, B, which are independent of each other, ensure that the heat to the kiln can be operated evenly, depending on one another,
that is, without a temperature gradient. For this purpose, the two longitudinal walls 1, 2 of each tunnel are arranged between the individual, separately operated furnace units A and B , channels 4, 5, incorporated combustion channels, side walls in which, depending on requirements, hot air or two channel systems are provided, from which the cooling air is passed,
one takes up the refractory filler and the oil, 65 It is within the scope of the invention to supply this warm water to the other two channels which supply the air required for the combustion air or cooling air system through a heating or cooling system. These channels bil- cooling device of any kind to replace,
the total of a heating device. In addition, the measure according to the invention is at