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WO1999001523A1 - Systeme d'etancheite pour porte de four a coke avec double suspension elastique - Google Patents

Systeme d'etancheite pour porte de four a coke avec double suspension elastique Download PDF

Info

Publication number
WO1999001523A1
WO1999001523A1 PCT/DE1998/001800 DE9801800W WO9901523A1 WO 1999001523 A1 WO1999001523 A1 WO 1999001523A1 DE 9801800 W DE9801800 W DE 9801800W WO 9901523 A1 WO9901523 A1 WO 9901523A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
coke oven
loop
cantilever arm
cutting edge
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.)
Ceased
Application number
PCT/DE1998/001800
Other languages
German (de)
English (en)
Inventor
Heinz HÖLTER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU90609/98A priority Critical patent/AU9060998A/en
Priority to DE19880872T priority patent/DE19880872D2/de
Priority claimed from DE19829010A external-priority patent/DE19829010A1/de
Publication of WO1999001523A1 publication Critical patent/WO1999001523A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B25/00—Doors or closures for coke ovens
    • C10B25/02—Doors; Door frames
    • C10B25/16—Sealing; Means for sealing

Definitions

  • the invention relates to a coke oven door seal for coke oven doors which can be pivoted in front of the coke oven, the door bodies of which are equipped with an all-round projecting membrane plate for sealing against the sealing surface of the oven frame, the membrane plate being formed at the end to form a sealing edge.
  • coke oven door seals are used for coke ovens in which coking coal is coked.
  • the coke oven doors consist of a steel or cast steel frame, which are insulated on the inside of the furnace and which are very heavy due to their dimensions and structure and can therefore only be operated with the appropriate machines. They have to be pivoted away from the oven to push out the glowing coke cake and then have to be placed in front of it again after pushing out the coke cake. For energy reasons, but above all also for environmental reasons, the door body must then be placed on the edge of the stove frame so tightly that gases and the like. ⁇ . cannot leave here.
  • the door body is therefore provided with a circumferential membrane plate as a seal, the membrane plate being shaped such that it lies as tightly as possible on the sealing surface of the furnace frame with the sealing edge formed on the end.
  • the problem here is that, particularly in the case of older coke oven batteries, the oven frames warp so strongly that the membrane plate with its sealing edge can only be pressed tightly around the sealing surface with great effort.
  • Membrane plates are known for this purpose, which are usually loaded by spring bodies or the like. be loaded onto the furnace frame with their sealing edge bent at the end. The membrane plate must have a corresponding length in order to be able to compensate for the corresponding distortions of the furnace frame.
  • Such membrane plates are known from, for example, US Pat. No. 4,118,284, US Pat. No.
  • the object of the invention is therefore to create a coke oven door seal that also adapts itself strongly and is strongly rejected and that adjusts itself automatically.
  • the membrane plate is formed from a resilient cantilever projecting from the door body, which has a loop-shaped extension at the free end, partially covering the sealing cutting edge, and the sealing cutting edge connected to it.
  • the two-part design of the membrane plate makes it possible to provide arrangements in the connection area with which the necessary contact pressure is practically created in order to ensure that the sealing edge fits securely on the furnace frame or its sealing surface even in the strongly rejected furnace frame.
  • the loop-shaped extension that covers the sealing edge ensures that the sealing edge can be introduced and pre-tensioned in this area to such an extent that even with large faults in the furnace frame it still has the necessary elasticity or, better said, pre-tension here to adhere to the sealing surface of the furnace frame designed so that the necessary tightness is guaranteed.
  • the sealing cutting edge in the area of the tip of the loop-shaped extension has a bend or bend which partially receives it.
  • the loop-shaped extension is preferably realized and produced in that the cantilever is flanged and returned in this area, so that an in Forming stiffening extending in the longitudinal direction of the door body, which ensures the secure contact of the sealing edge beyond it.
  • This support is specifically improved by the fact that the loop-shaped extension lies in a corresponding bend or is formed into it, so that if the sealing edge protrudes sufficiently, there is such a large coverage area that the necessary pressure is given by the loop-shaped extension.
  • the invention provides that the cantilever is releasably connected to the door body and releasably connected to the sealing blade in the area of the extension.
  • This double detachable connection has the advantage that it is also possible to replace the sealing cutting edge alone if for some reason the end cutting edge is so damaged that leaks only occur for this reason. The sealing cutter can then be replaced alone and operation can be resumed. Thanks to the detachable connection, a quick exchange is possible and, as already mentioned, also by replacing the entire cantilever arm with the sealing cutting edge.
  • the invention provides that the cantilever arm and door body and cantilever arm and sealing screw expediently have a screw connection, so that the corresponding individual parts can be replaced by loosening correspondingly fewer screws.
  • the cantilever arm and also the sealing cutting edge do not extend over the entire length of the door body, but rather consist of parts which are expediently sealed in the connection area.
  • the cantilever arm has a double layer and the sealing cutting edge is fixed between the loop-shaped extensions.
  • the sealing cutting edge whether in an angled or straight form, can be securely and appropriately fixed between the two cantilever arms, which are also connected to one another at the same time, so that area provides sufficient stability.
  • the two loop-shaped extensions ensure an advantageous, because quasi resilient, support of the sealing blade relative to the cantilever arms, so that, when viewed over the length of the sealing blade or cantilever arm, support that can be easily adapted to the respective circumstances is achieved.
  • This design is particularly advantageous because the furnace frame, on the one hand, and the door body, on the other hand, do not bend in the same direction, but generally in the opposite direction, so that the distance between the two, which is overcome by the cantilever arm or the membrane plate, is even greater must become.
  • the support by the loop-shaped extensions advantageously bridges the different bending areas of the door body and the furnace frame, on the other hand, without damaging kinks or other influences.
  • the arm end is fixed with the sealing edge and cantilever connecting screw connection.
  • both the double-layer and the simple design of the cantilever arm ensure that the respective sealing edge is advantageously supported or deliberately preloaded, without causing adverse effects, as already mentioned above.
  • the fixing of the arm ends and the connection of the sealing cutting edge and the cantilever arm are possible with a single screw connection, as a result of which the upgrade effort can be kept significantly and clearly within limits.
  • the sealing cutting edge has preferably sinusoidal waves running in the longitudinal direction of the door body, the end piece being designed as a cutting edge without undulation.
  • These specifically predetermined waves increase the spring action or increase the spring travel, whereby it is ensured that the function of the sealing cutting edge is ensured in any case, because the sealing edge is still placed specifically on the sealing surface of the furnace frame, whereby the degree of inclination of the end piece can always be kept the same due to the sinusoidal design of the waves or ultimately depends on how large the pressure is given via the loop-shaped extensions and of course the cantilever arm is.
  • the desired spring action and also the adjustment of the spring travel can also be influenced in a targeted manner by this or only by the loop-shaped extensions having a corrugated shape. This ensures that the door body is always optimally sealed from the furnace frame.
  • the invention is characterized in particular by the fact that a coke oven door seal is created which is practically independent of the shape of the oven frame and that the changing shape of the oven frame always adjusts itself or is adjusted such that the end piece of the sealing cutting edge lies securely on the furnace frame is always guaranteed.
  • This is achieved by the two-part shape and the special end design of the cantilever arm, but also by the fact that spring steel is used as the material for these parts.
  • the correspondingly bent cantilever arm with the loop-shaped extension at the end rests on or on the somewhat inclined sealing edge in such a way that it always lies securely on the sealing surface of the furnace frame. This guarantees a completely secure seal.
  • this two-part coke oven door seal made of the cutting edge and cantilever arm is easy to assemble and can therefore be replaced if necessary.
  • the loop-shaped extensions at the ends ensure a uniform and secure fixation and influencing of the sealing edge over the entire length of the door body, so that even if the door body bends inevitably, the sealing edge lies tightly against the sealing surface of the furnace frame.
  • Fig. 1 shows a simplified representation of the sealing area between door body and furnace frame with a simple cantilever
  • Fig. 2 shows the sealing area with a double cantilever
  • the coke oven door seal 1 is shown in a simplified manner in accordance with FIG. 1 in such a way that the essential parts are easily and reliably recognizable.
  • a membrane plate 4 is used for sealing between the furnace frame 2 and the door body 3, which consists of the sealing cutting edge 5 and the cantilever arm 8.
  • the sealing edge 5 lies tightly against the sealing surface 6 of the furnace frame 2.
  • the end region of the sealing cutting edge 5 runs slightly inclined with respect to the sealing surface 6, so that the special design of the cantilever arm 8 enables a secure pressing against the sealing surface 6.
  • the cantilever arm 8 is designed as a spring steel element, the free end 9 of which forms a loop-shaped extension 10 which bears against the correspondingly shaped sealing cutting edge 5 and influences it correspondingly in the direction of the sealing surface 6 of the furnace frame 2.
  • the spring effect is increased by a corrugated design of the sealing cutting edge 5, the tip 11 of the loop-shaped extension 10 lying in the appropriately designed seal 12, which is particularly illustrated in FIG. 1.
  • the arm end 18 of the loop-shaped extension 10 is returned to the extent that it can be fixed at the same time via the screw connection 15 between the cantilever arm 8 and the sealing blade 5 which is required anyway.
  • Fig. 1 corresponds also clarifies Fig. 1.
  • the cantilever arm 8 can also be detachably connected to the door body 3 via the screw connections 15 ', so that an exchange of the entire membrane plate 4 is possible or even by loosening the screw connection 15 Replacement of the cutting edge 5, for example can be achieved.
  • the cantilever arm can also be formed in two layers, whereby a kind of cantilever arm 8 and a second cantilever arm 16 are created.
  • the free end 9 is bent so far that it can be connected in the form of the loop-shaped extension 10 or 17 with the screw connection 15 to the cantilever arm 8 and 16 and the sealing cutting edge 5.
  • the return of the loop-shaped extension 10 and 17 is of opposite design, so that the tip 11 is advantageously rounded in both cases, so that a targeted but gentle fixing and influencing of the sealing cutting edge 5 can be achieved.
  • the sealing cutting edge 5 is equipped with shafts 19, 20 running in the longitudinal direction of the door body, which preferably have a sinusoidal shape and which keep the end piece 22 free, so that an always tight contact with the furnace frame 2 or its Sealing surface 6 is secured.
  • the loop-shaped extensions 10, 17 and here the loop-shaped extension 17 can have a corrugated shape 21 in order to achieve an extremely long spring travel or to be able to bridge it, so that it can accommodate the unevenness of the furnace frame 2 to be sealed can adapt under all circumstances, even if seen over the length of the Matö ⁇ ers 3 different spring paths are available or are required.
  • the evenly formed shafts 19, 20 result in an extremely long spring travel, although other shapes of the shafts 19, 20 are also conceivable if this should prove to be more expedient for manufacturing reasons.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)

Abstract

L'invention concerne un système d'étanchéité (1) destiné à une porte de four à coke, qui possède une flexibilité particulière ou dans lequel la course du ressort est particulièrement longue, du fait que la plaque membrane (4) comprend un bras en porte-à-faux (8), faisant ressort et de préférence courbe qui est dirigé vers l'avant, et fait saillie du corps (3) de la porte, ainsi que le tranchant d'étanchéité (5) relié au bras. L'extrémité libre (9) dudit bras (8) comporte un prolongement tubulaire (10) qui recouvre partiellement le tranchant d'étanchéité (5), de façon à exercer une pression avantageuse. Le prolongement tubulaire (10) et le tranchant d'étanchéité (5) peuvent avoir une forme ondulée.
PCT/DE1998/001800 1997-06-30 1998-06-30 Systeme d'etancheite pour porte de four a coke avec double suspension elastique Ceased WO1999001523A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU90609/98A AU9060998A (en) 1997-06-30 1998-06-30 Sealing system for a coke furnace door with double suspension
DE19880872T DE19880872D2 (de) 1997-06-30 1998-06-30 Koksofentürabdichtung mit doppelter Federung

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19727672.5 1997-06-30
DE19727672 1997-06-30
DE19829010A DE19829010A1 (de) 1997-06-30 1998-06-30 Koksofentürabdichtung mit doppelter Federung
DE19829010.1 1998-06-30

Publications (1)

Publication Number Publication Date
WO1999001523A1 true WO1999001523A1 (fr) 1999-01-14

Family

ID=26037849

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/001800 Ceased WO1999001523A1 (fr) 1997-06-30 1998-06-30 Systeme d'etancheite pour porte de four a coke avec double suspension elastique

Country Status (3)

Country Link
AU (1) AU9060998A (fr)
DE (1) DE19880872D2 (fr)
WO (1) WO1999001523A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172769A (en) * 1978-09-27 1979-10-30 Koppers Company, Inc. Coke oven door seal and jamb
EP0144649A2 (fr) * 1983-11-10 1985-06-19 Krupp Polysius Ag Porte de four à coke
EP0417610A1 (fr) * 1989-09-04 1991-03-20 Ateliers Louis Carton S.A. Porte de four à coke

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172769A (en) * 1978-09-27 1979-10-30 Koppers Company, Inc. Coke oven door seal and jamb
EP0144649A2 (fr) * 1983-11-10 1985-06-19 Krupp Polysius Ag Porte de four à coke
EP0417610A1 (fr) * 1989-09-04 1991-03-20 Ateliers Louis Carton S.A. Porte de four à coke

Also Published As

Publication number Publication date
DE19880872D2 (de) 2000-03-30
AU9060998A (en) 1999-01-25

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