DE2416524A1 - DEVICE FOR OPERATING A COOK OVEN BATTERY - Google Patents

Description

PATENT LAWYERS

Dipl.-Ing. H. Seiler Dipi.-lng. J. Pfenning Dipl.-Phys. KH Meinig

GO / 1187. 1 Berlin 19

"Oldenburgallee 10

Tel, 030/304 55 21/22

Wireword: rope defense patent

Postal checking account: Berlin-West 59 38-1O2

April 4, 1974 Pf / schu

SIMOM - UAüVJfiS LIMIi ¹ JiJ) Cheadle Heath, Stockport, Cheshire, England

Device for operating a coke oven battery

The invention relates to the operation of coke ovens and in particular the control of the pressure of the gas evolved in a furnace chamber during operation. The one in one! Furnace chamber evolved gases are over one or more

Risers arranged on the upper bark of the furnace transferred to one or more main manifolds that extend along the furnace battery and with each one Ofemcammer are connected via the risers.

The gases are withdrawn from the main collecting line (s) and used for other purposes, for example as fuel for the furnace battery or any other system.

409846/0288

Jüine difficulty given by this evolution of gas
is, is that during the charging of a furnace chamber with coal to be coked and during a certain
Period thereafter the volume of developed oasis is considerably higher than during the festive period of the vemokunga period. The larger gas volume developed results in the following j

ι increased gas pressures leading to a leak on the oven door;

can cause gas to escape into the atmosphere ί; This is also possible with self-sealing doors that have recently been used, since a perfect seal is only given if the pressure difference on both sides of the
Poetry is kept within certain limits. This difficulty
can to a certain extent be remedied by the fact that the
Gas is sucked from the main manifold to reduce the pressure
to lower in the Üfenkammer.

If, however, the initial shock-like evolution of gas

j ι

j ends, is sucked out of the naupt-Saiamel- [

j I

! line created a pressure drop in the furnace chamber, through which the pressure difference from both sides of the door seal ^;

- i

is reversed so that a leak also occurs,

; l

^: can enter the furnace chamber through the air. The flow of air to the furnace chamber during coking must be;

• but must be avoided at all costs in order to j

- I.

£ 09846/0288

to prevent burning.

One way to avoid these problems is to that in or adjacent to each riser a valve is arranged, which gradually increases with the progress of coking must be closed so that the pressure in the furnace chamber is housed at a level through which one in the chamber is prevented from leaking in a directional manner. However, this measure requires a considerable amount of equipment, and in addition, the necessary constant actuation of the valves of an oven battery is difficult to remove Task.

Each invention is based on the object of a measure to operate a coke oven battery, through which the problem described above in a simple manner is switched off. '

According to the invention is a method for operating a coke oven

■ Battery provided, which is characterized in that |

at least one pair of main gas manifolds arranged j

! j

j and devices are provided to selectively use them with each Connect the furnace chamber of the battery to that in each chamber!

j evolved gases of a first line of the pair or pairs

40984 6./0288

of gas manifolds during loading of the chamber j are supplied with coal to be coked and during a certain subsequent time range, and that the Gases of the second line of the pair or pairs of Maupt gas manifolds for the ± test of the coking period and that the gas pressure in the main lines is set separately in such a way that the pressure in the first main line has a lower value than the pressure in the second main line.

an embodiment of one of the implementation of this method ^!

serving coke oven battery is shown for example in the \ schematic drawing.

: As the drawing shows, there is at least one riser pipe 10 on the upper floor of each furnace chamber 11 of a furnace battery 12 arranged alternately and selectively with a pair of

j main manifolds 13 and 14 can be connected to the

sicia extend along the furnace battery 12. Valves 13a and 14a are provided for this purpose. Each iiaupt-Sammelle it ung is equipped in customary manner with a conduit 13b, 14b ', which lead to a further system in order from · - to extract the gases certain components}, the lines 13b, 14b can also lead to a receptacle, from to the

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the gases can later be taken to be used as fuel to be used. j) he gases are on their * <eg by the Riser pipe lü into one or the other main gas manifold cooled by spray devices 15, and the failing Condensate and the i'eer will be on the bottom each naupt-Gassammelleitan ^ withdrawn and a ^ bsetztamc 16 j supplied, from the upper area of which the relatively clear liquid can be withdrawn to feed the

j Spray devices 1!?. em is in each line 13b, 14b

■ Fan 17 or the like disordered to the gas with

ι controlled speed from each main gas manifold. j

! ί

; deduct and thereby control the pressure in the lines.

i vYenn during operation exne furnace chamber with coal to be coked

] is charged, and during a certain subsequent j time of coking, the valve 13a is open and that Valve 14a closed, and the developed ü-ase are over

j the riser pipe 10 led to the first gas samiael line 13. j. After this time has elapsed, a switching mechanism is activated! by which the position of the valves is reversed, '! so that the gases now flow to the other main oil collecting line 14 [

jj for the reads are fed to the coking period. i) a the ₍

; furnace chambers are constantly charged in a selected sequence and;

409846/0288

being discharged is always one due to the coking in both
Main collecting line and gas supply.

To ensure that the gas pressure in each furnace chamber j is held between an appropriate maximum and minimum, i

! in order to exclude the formation of lecic on the oven door, the gas pressures in the two main lamellas separate and
continuously du.-ch the YentILators 17 controlled, The gas pressure in the first main manifold 15 is always kept lower than the pressure in the second main gas _; Manifold, so that the shock-like gas development in the
Charging and during the .Beginns of coking in the
first main gas manifold 13 can be compensated. '

The use of a special gas collecting line for the au! "Namne ^: the gas developed during the loading and during the first 7eritokungszeit in the furnace chamber is special
advantageous if the coke ovens are charged with dried and preheated coal, as the in such a feed. Defindly coal stood a considerable share of
Dust is carried along in the gases initially developed »here
It is particularly important to ensure that a
minimum amount of dust carried along by a media system
is supplied by the fact that the second main manifold

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is directly connected to this system. In this' // way can be included in the first main manifold Dust-laden gases are treated separately.

The separate control of the gas pressures according to the invention in the two main Sassam pipelines is also of considerable advantage if the furnace is proportionate to the loading Wet coal is used as it eliminates the dangers and problems arising from leaking the furnace doors result.

The invention is not limited to the above Embodiment limited, it can experience various modifications lying within the scope of the inventive concept

For example, for better distribution of the in a Furnace chamber gases developed two risers for each furnace chamber be provided, one at each end of the chamber ". Both risers can optionally connectable to a pair of main gas manifolds; however, a second pair of such main gas manifolds can also be used be provided.

409846/0288

Claims (1)

Expectations 1. Device for .operating a coke oven battery, characterized in that j I at least one pair of main gas manifolds and j Devices are provided for connecting each furnace chamber of the battery j to these main manifolds j that; the gases developed in each chamber of a first ι Main nurse line of the pair or pairs of main nurse! - ■ ' lines during the loading of the chamber with _; Coal to be coked and during a certain period of time that the gases are fed into the ufenkammer
during the remainder of the verification period of the second
Main collecting line or pairs of main collecting lines are supplied, and that the gas pressures in-the! main manifolds are held in such a way that the pressure in the first main gas manifold has a lower value than the xirucit in the second main gas manifold. ; A09846 / 0288 2. Set up according to. Claim 1, - characterized in that that the gases from the first main gas manifold through, a fan or the like can be extracted. 3. -device according to claim 1, characterized in that the gases are sucked from both main gas manifolds by fans _o 4 ·. Device according to one of claims 1 to 3, characterized characterized in that the gases evolved in the furnace chamber automatically in the remaining coking period be transferred to the second Jiaupt gas manifold. 5. Device according to one of claims 1 to 4, characterized characterized that the gases before entering the iiaupt gas manifolds are cooled. 6. Device according to one of claims 1 to b, characterized marked that the gases from each main üas manifold be transferred to a facility for their further treatment. -10 - 409846/0288 7. Device according to one of claims 1 to 6, characterized characterized that from the cooled gases the condensate ionization and tar components in the lower part of the Main grass manifolds are collected, with the relatively clear .Liquid for cooling the Gfase is used. 8. Device according to claim 1, characterized in that that at least a pair of main Gfas manifolds extends over the entire length of the furnace battery, j that means for selectively connecting each furnace chamber the battery with the main gas manifolds are, and that devices for achieving such a pressure difference in the main grass collection lines are arranged that the .Druck in the first main Ciassicheline is less than in the second main gas collection line. 9 «Device according to claim 8, characterized in that that em ventilator or the like to dissipate the Provides gases from the first main gas manifold is. - 11 - 409846/0288 lü. alignment according to. Claim 8, characterized in that that there is a fan in each main gas manifold or the like is arranged for sucking off the gases. 11. üinrichtung according to one of claims B to 10, characterized in that a switching device for transferring the gases into the second main-Ü-as collecting line is provided. 12 * device according to one of claims 8 to 11, : characterized in that each main gas manifold j assigned a spray device for cooling the gases • is that devices for promoting the condensation ! and tar ingredients provided to a settling tank i are, and that devices for deduction of the relatively clear '' Liquid from the top of the sedimentation basin ! and arranged for transfer to the spray devices! are. 13 · Device according to one of Claims 8 to 12, | characterized in that each main gas manifold ί has a conduit for transferring the gases; serve to another treatment plant. 403846/02 ft Blank page