NL8102908A - Preheating coke chambers of coke battery - using burners in doors and connecting filling openings to combustion chamber inspection ports - Google Patents

Abstract

The chambers are provided with filling openings in the oven top and each have combustion chambers to either side with inspection ports in the top. U-shaped pieces are placed to connect each opening with a number of ports of adjoining chambers and heat is supplied to the chambers by burners in the doors at the battery rear and front which are preferably fired by coke oven gas. The combustion gas passes through the chambers, pipes and chambers to the regenerator and the flue duct. Used for pre-heating coke chambers of coke oven battery before filling. The arrangement eliminates the need for entering the chambers after heat-up in order to plug openings left for heat-up purposes in the walls between the chambers.

Description

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PROCESS FOR THE WARM-UP VAR EER ON MORE COOKES ROOMS IR EER COKE CONVERTER

As an inventor, the applicant has advised:

The invention relates to a method for heating one or more coke chambers in a coke oven battery.

When commissioning coke chambers in a battery - whether after new construction or repairs - it is necessary to bring the refractory wall to a certain temperature. Heretofore, this heating has been accomplished by opening a number of special openings in the partitions between a coke chamber and both adjacent combustion chambers, which are then sealed with a stopper after heating. Since this sealing must be done by manpower, it is an unpleasant work for the man concerned.

15 Because this has to be done further with open doors and - because the man has to move in the narrow coking chamber - takes quite some time, the refractory brickwork will meanwhile cool down considerably again, resulting in an increased risk of cracking and thus associated air pollution, as well as a reduction in battery life.

The invention contemplates this "firing up." significantly simplify and accelerate a coke oven battery, as well as contribute to extending its life.

The method according to the invention is characterized in that a number of pipes are arranged on the oven deck between the filling hole of the relevant coke oven chamber and a number of inspection openings of both adjacent combustion chambers and subsequently heat via the coke chamber for a certain period of time. feed it through '. · * · * · A hot gas flow through the relevant coking chamber, the filler holes there-. ^ 30 of, the pipes on the oven deck, the inspection openings from the adjacent combustion chambers to the flue and the chimney, to the refractory walls of the coke chamber and the combustion * 8102908, 2 HO 435 !ι! - i ...

rooms are ceded. -

Thus, use is made of the holes and openings in the oven deck already present in the coke oven chamber and combustion chambers, so that no bricks have to be left or left in the partitions. placed. Heating also appears to take place faster and more evenly.

The supplied heat is preferably obtained in that in the door surface of one or both end walls of the. coke chamber a burner is placed which is fed with raw coke oven gas. fired. Namely, this is the cheapest and immediately available energy source. . **

The invention will be explained in more detail with reference to the drawing.

Pig. 1 is a sohematic longitudinal section of a coke oven-15 battery, taken along line I-I in FIG. 2.

Pig. 2 is a top view of the oven deck of a portion of a coke-over battery.

Pig. 3 shows a pipe in detail.

In the sohematic representation of Fig. 1 it can be seen that 20 coke chambers C are delimited on both sides by combustion chambers S. From a filling car not indicated on the oven deck 1, the coke chamber can be filled via a number of filling holes 2. Each filling hole 2 is closed again after filling with the aid of a drop hole cover. The regenerators are indicated by R.

Each combustion chamber is provided with a number of inspection channels 3 to the oven deck 1, which are also closed again with a lid after visual inspection.

Before using or re-using a coke oven, it is important - before filling the coke chambers with coal - to heat the refractory walls, the so-called op token. According to the invention this is done in that a number of pipes 4> 5, 6, etc. are placed on the oven deck. between each fill hole 2 of a coke oven chamber C and a plurality of inspection openings 3 of the adjacent combustion chambers S.

35 Fig. 2 schematically shows a top view of the oven deck of a part of a coke oven battery, with some 81 0 2 9 OS .....

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# • * / combustion chambers with S1, S2 and S3 are indicated and the intermediate solid coke chambers with C1 and C2. The coke chambers each have four filling holes (2), two of which are between the rails 12 for the filling wagons. the others on either side.

5 The combustion chambers have, for example, 24 inspection openings: (3), and a skilled person will be able to conclude directly from the indicated connection of the combustion pipes to these openings that we are dealing in this example with a construction of the combustion chambers that are paired two by two according to the "Zwillingsheizzug -" or "twin-10 flue principle.

It will furthermore be clear that as few pipes as possible are desired on the oven deck, and that furthermore no pipes may lie on the rails 12.

As shown in FIG. 2, the portion of the coke oven battery to be heated is delimited at one end by the combustion chamber S1 at the top of the FIGURE, it being understood that the row of coke chambers to be heated plus combustion chambers can extend further to the other end. In Fig. 2, the climbing pipe rising from each coke oven through the oven deck is sehematic with the 20. reference numeral 7 is indicated. In the door face of both end walls, on the so-called machine and coke side, of each coke chamber G, a burner 8 and 8 respectively. 8 'which is connected to a pipe 9 resp. 9T of raw coke oven gas. These burners 8 bring the heat of combustion into the coke chambers C; the hot combustion gases 25 flow through the relevant coking chamber (c), the associated filling holes (2), the pipes 5, 6, etc.) on the oven deck (1), down through the inspection openings (3) to the adjacent combustion chambers (S1, S2) to the flue pipe and chimney (not shown).

The burner 8 can be arranged in a (closed) door, but another possibility is to arrange a temporary refractory wall in the door opening, in which the burner is placed.

As shown in FIG. 3, each connecting pipe is D-shaped, with the

Insert the legs of the U into the filling hole on the one hand and the inspection opening on the other hand. With the aid of a% slider 33 arranged in the middle section, it is possible not too large deviations in the

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t 4 position t us sen the legs in a simple way to correct. The part of each pipe which does not protrude into the filling hole or the inspection opening is preferably provided with a heat insulation, on the one hand. to avoid burns from direct contact with the hot pipes on the oven deck and, on the other hand, to limit heat loss.

In Figs. 1 and 2, the sealing plates 10 and 11 are located on some filler holes (2) in the oven deck to accommodate five and. three piOpen displayed.

In applying the inventive idea, a number of advantages result from the previous firing practice, such as the lack of the need to place the deliberately omitted stones in the partition between the coking chamber and the combustion chambers, so that unpleasant and non-harmless work can be left behind and the battery can start operating faster. The quality of the refractory material is maintained by the lack of cooling, whereby cracks become less quickly known and the battery life is extended. After bringing the battery to temperature (about 700 ° C), it appears to take only half an hour to remove the pipes.

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Claims (3)

Z. 9 5 HO 435 2iL i * t QONOLUSIONS Method for heating one or more coke chambers in a coke oven battery, characterized in that one is placed on the oven deck. number of pipes between each fill hole of the current coke chamber and a number of inspection openings of the adjacent adjacent combustion chambers and then for a certain period of time apply heat through the coke chamber which, through a hot gas flow through the current coke chamber, the fill holes thereof onto the furnace deck, the inspection openings from the adjacent combustion chambers to the flue and the chimney, are relinquished to the refractories of the coke chamber and the combustion chambers. 2. A method according to claim 1, characterized in that a burner is placed in the detection surface of one or the end walls of the coke chamber, which is fired with crude coke oven gas. 3 «Pipes for use in the method according to one of the conolusions 1 or 2, characterized in that the pipes are U-shaped, with a sliding piece (33) in the middle section and, if not protruding into the filler holes or inspection openings, equipped with heat insulation. % V 8102908