DE2159109A1 - Continuous furnace with walking beam - Google Patents

Description

Dipi.-ing. Waiter Meissner DtpL-ing. Herbert Tischer BERLIN-GRUNEWALD MUNICH

8 Munich 2, November 29th, 1971

Valley 71

Telephon. 221298

/Oh

Aktieboläget Tabougnar
Stockholm / ». Sweden

Continuous furnace with walking beam

The invention relates to a continuous furnace with imbbalken ,,

The object of the invention is to create a continuous furnace with walking beams, in which the conveyance of the batch can be interrupted in any part of the continuous furnace without the conveying movement of the lifting beams having to be stopped _e

This object is achieved according to the invention in that Eggs located between two walking beams hearth part at least ■ on a section of the length of the continuous furnace li level can be raised above the level that the lifting beam achieve during their conveying movement »

As an embodiment of the invention, the drawing illustrates the lower part of a continuous furnace

iJor illustrated continuous furnace with walking beam üirie üordzone 1 with ι / .. nd 2, 3 and a blanket (not darr; cüt / ellt). Below the -t-iei.-dzone there is a machine

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zone 4, in which the drives are positioned 5 and 6 for the lifting beams 7 and 8 ₀ The lifting beams 7 and 8 can perform a reciprocating movement in the usual · Vveise, where they are raised during their forward movement, so that the charge 9 is lifted out of the hearth plane,. In the embodiment shown, the hearth has four longitudinally extending support ribs 10, 11, 12 and 13, of which the support ribs 10 and 11 each on one side of the lifting beam 8 and the support ribs 12 and 13 Each of the lifting beams 7 is valid, lifting beams 7 and 8 move forwards and backwards as well as up and down, with between the side walls of the support ribs 10, 11, 12, 13 and the outer sides of the beams 7 and playing is. The drives 5 and 6 for the lifting beams 7 and 8 are designed in the usual way and therefore do not need to be described in detail.

The two middle support ribs 11 and 12 lying between the lifting beams 7 and 8 are according to the invention up to a certain one Level can be raised above its normal position. The Jiveau, on that these support ribs 11 and 12 are to be opened is above the Levels that the walking beams 7 and 8 during their conveying movement reach «^. So if the 'support ribs 11 and 12 on the highest Are raised level, they have lifted the batch 9 they are carrying so high that the walking beams 7> 8 the batch can no longer reach and absorb. The batch 9 therefore remains on the 'support ribs 11 and 12 and is no longer conveyed through the furnace. The support ribs 11 and 12 or the stove part between the walking beams 7 and 8 iat depending on the desired Mode of operation designed so that it can be raised over the entire length of the continuous furnace or only over a portion of the length is.

The stove part lying between the walking beams 7 and 8 is can be raised by a drive 14 »This drive Tcann printing cylinder, Contain bars or wheels on which the stove part rests.

The operation of the liftable and lowerable part is

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preferably controlled in such a way that the hearth part during the upward movement of the overhead beams 7, 8 or immediately in front of it is raised while it is lowered as soon as the walking beams 7,8 have gone down. As a result of the fact that the - "- continent, i.e. the irs flu 11 and 12, is not raised before the lifting of the overhead beam 7,8 has taken place, the Charge 9 normally in a certain position on the whole stove during the downtime and thus becomes straighter Alignment held. V / would charge 9 only on the raised one Support ribs 11 and 12 rest, there is a risk that the ends of the batch will be bent.

^ u notice in this context that the liftable and lowerable hearth part does not represent a lifting beam, but only performs an upward and downward movement without the Batch is moved forward in the conveyor oven, tfenn the liftable Hearth part has been lowered to the same level as the other support ribs and 13, the batch rests in the usual Way on the whole stove and can be from the lifting beams 7 and 8 be detected in order to move them forward in the conveyor oven.

-According to the desired downtime at a certain point or in a certain position in the continuous furnace, the hearth part which can be raised and lowered can be carried out a certain number of knuckling and lowering movements, so that λ the walking beams only operate those batches in their conveying movement that are in front of or behind the raised and lowerable ^ ground section.

Of course, it is possible to raise and lower the stove as such over the entire ^{length of the} earth, but this is generally not necessary because it is particularly desirable that the stove can be raised in the preheating zone between the walking beams and the batches get a longer downtime here «

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Claims (2)

a t e η t a η s ρ r ü c h e 1o continuous furnace with liubbalken, thereby
characterized in that the hearth part (11, 12) located between two walking beams is at least one section of the length of the passage oven to a level above the
Levels can be raised that reach the viubbalken (7vO during their conveying movement. 2. Continuous furnace according to claim 1, dadu 2 "ch
marked ennze t, above the iierd of the passage oven during the upward movement of the HuI; bar or immediately before it can be raised int. BATH
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