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EP0533515B1 - Dispositif d'étanchéité entre une porte d'un four à coke et un cadre de porte - Google Patents

Dispositif d'étanchéité entre une porte d'un four à coke et un cadre de porte Download PDF

Info

Publication number
EP0533515B1
EP0533515B1 EP92402289A EP92402289A EP0533515B1 EP 0533515 B1 EP0533515 B1 EP 0533515B1 EP 92402289 A EP92402289 A EP 92402289A EP 92402289 A EP92402289 A EP 92402289A EP 0533515 B1 EP0533515 B1 EP 0533515B1
Authority
EP
European Patent Office
Prior art keywords
door
sealing
oven
channel
frame
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.)
Expired - Lifetime
Application number
EP92402289A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0533515A1 (fr
Inventor
Lucien Mazzini
Jean-Marc Leroy
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.)
Lorfonte
Sollac SA
Original Assignee
Lorfonte
Sollac SA
Lorraine de Laminage Continu SA SOLLAC
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 Lorfonte, Sollac SA, Lorraine de Laminage Continu SA SOLLAC filed Critical Lorfonte
Publication of EP0533515A1 publication Critical patent/EP0533515A1/fr
Application granted granted Critical
Publication of EP0533515B1 publication Critical patent/EP0533515B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 present invention relates to a sealing device between a door of a coke oven and a door frame. More specifically, the device according to the invention makes it possible to maintain a good seal despite the deformations which the door undergoes due to temperature variations and despite the tar deposits resulting from the carbonization of the coal.
  • temperatures of the door and the door frame which can vary from 80 to 200 ° C. are noted.
  • sealing devices comprising a sealing member forming a blade, fixed to the door and having a junction edge with the door frame, and a sealing gasket at the end of this blade, sealing between the blade and the adjacent edges of the door frame.
  • the object of the present invention is to produce a sealing device for a coke oven door making it possible to maintain the seal despite the deformations of the door due to the temperature, without using elastic, spring or other means.
  • the subject of the invention is a sealing device between a door of a coke oven and a door frame, comprising a sealing member, fixed to the door, having a junction edge with the frame. , comprising a channel integral with the door, adjacent to the sealing member, supplied with a sealing gas having a pressure greater than that existing inside the oven, characterized in that the channel extends over all the periphery of the door and comprises several compartments respectively supplied with sealing gas by separate supply conduits, each supply duct comprising means for adjusting the flow rate of sealing gas.
  • the sealing member is delimited by blades, a first end edge of the member forming the junction edge with the door frame, the second end edge of the 'organ comprising cutouts.
  • the invention also relates to a coke oven comprising at least one door frame delimiting an opening and at least one door mounted movable relative to this frame in a direction substantially parallel to the axis of said opening, characterized in that the frame and the door comprise a sealing device as defined above.
  • FIG. 1 shows a coke oven 10 having an opening 12, of axis X-X, necessary to empty the oven at the end of the coking process.
  • a door 14 makes it possible to seal the opening 12 in a leaktight manner during the coking process.
  • the opening-closing movement of the door 14 takes place along the axis XX.
  • the door 14 is connected to an operating and guiding device, not shown in the figures, carried by a door frame 16.
  • This door frame fixed to an outside face of the coke oven 10, around the opening 12, has a wall 18, substantially parallel to the axis XX of the opening 12, and a wall 20, perpendicular to the wall 18, allowing the fixing of the frame 16 on the oven.
  • the door 14 is provided with a wall 22, substantially parallel to the axis X-X, projecting towards the outside of the oven, disposed at the periphery of the door and integrally formed therewith.
  • the opening 12 of the oven 10, the door 14 and the frame 16 are of generally rectangular shape, their width being small relative to their height.
  • door 14 has a width of 30 cm and a height of 15 m.
  • FIG. 1 Also seen in Figure 1 a sealing member 24, adjacent to the peripheral wall 22 of the door 14.
  • This sealing member 24 is shown in more detail in Figure 2.
  • the sealing member consists of a rectangular frame 24, delimited by four blades 24A, 24B, 24C, 24D fixed to the door by clamping members 26, only one of which is shown in FIG. 1.
  • a first end edge 28 of the sealing member 24 forms a junction edge with the wall 20 of the door frame 16, in the closed position of the door 14.
  • the second end edge 30 of the member d 'seal 24 comprises cutouts 32 formed on the walls 24A, 24B which extend along the height of the seal member 24. These cutouts 32 reduce the deformations of the seal member 24 due to temperature variations during operation of the oven. The cutouts 32 are distributed over the sealing member 24 at locations having significant expansion.
  • Each clamping member 26 comprises a body 34, passing through the peripheral wall 22 of the door, perpendicular to this wall.
  • a first end threaded body 34, on the right considering figure 1, comprises a tightening nut 36.
  • a second end of body 34, on the left considering figure 1, comprises a finger 38 extending roughly parallel to the peripheral wall 22 of the door 14.
  • the sealing member 24 is clamped between the peripheral wall 22 of the door 14 and a protuberance 40 of the free end of the finger 38 of the clamping member 26.
  • the sealing member 24 carries a channel 44 in U.
  • This channel is integral with the door 14 by being fixed, by known means not shown, on the sealing member 24.
  • the open side of the channel 44 is adjacent at the junction edge 28 of the sealing member and facing the wall 20 of the door frame 16, when the door 14 is in the closed position.
  • the bottom 46 of the channel 44 is connected to a supply duct 48 for a pressurized sealing gas.
  • the channel 44 as a whole is shown diagrammatically in FIG. 3. It extends around the periphery of the sealing member 24 and has a generally rectangular shape, similar to the shape of the sealing member 24. It can be seen in FIG. 3 that the channel 44 has eight compartments 44A-44H, supplied with sealing gas respectively by eight separate conduits 48A-48H.
  • the two parallel parts of the channel 44 which extend along the height of the oven door each have three compartments.
  • the two parallel parts of channel 44 which extend along the width of the oven door each have a single compartment.
  • Each conduit 48A-48H is connected to means for adjusting the gas flow rate comprising valves 50A-50H. These valves are connected to a general supply conduit 52. The direction of gas flow in the conduits shown in Figure 3 is indicated by the arrows f.
  • the gaseous medium contained in the oven 10 is at a pressure higher than atmospheric pressure existing outside the oven.
  • the pressurized sealing gas circulating in the compartments of the channel 44 is a neutral gas with respect to the gaseous medium contained in the furnace 10.
  • the sealing gas is nitrogen.
  • the pressure of nitrogen inside the compartments of channel 44 is higher than that of the gaseous medium of the oven, for example about 20 millibars (2000 Pa) above atmospheric pressure.
  • the channel 44 delimits a buffer zone in which the nitrogen circulates at a pressure higher than that of the gaseous medium contained in the furnace 10.
  • the buffer zone being adjacent to the junction edge of the sealing member 24 with the door frame 16, the coke oven gases do not leak to the outside of the oven despite the appearance of leaks when the seal member 24 is deformed under the effect of temperature variations.
  • the supply lines 48A-48H separate for each compartment 44A-44H and the control valves 50A-50H arranged on each of these conduits make it possible to adapt the pressure in each compartment of channel 44 according to the extent of the faults sealing.
  • the operator controls the tightness of the oven door over its entire height by adjusting different pressures in each compartment of channel 44, these pressures being greater than atmospheric pressure by approximately 15 to 30 millibars (1500 to 3000 Pa ).
  • the recesses 32 formed in the sealing member 24 make it possible to optimize the consumption of nitrogen by reducing the deformations of the sealing member 24 so as to minimize leaks between the door 14 and the door frame 16.
  • the invention makes it possible to avoid emissions into the atmosphere of fumes from the coke oven by using a sealing gas, circulating in a buffer zone, not causing the ignition of the exhaust gases from the oven, and consequently avoiding deterioration of the oven inlets which are in particular made of silica.
  • the channel in which the sealing gas flows can have various shapes. It can be constituted in particular by an angle iron, disposed at the periphery of the sealing member, so as to be delimited by the walls of this angle iron and the blades of the sealing member.
  • the invention makes it possible to avoid air inlets detrimental to the life of the oven openings.
  • the invention makes it possible to protect the metal structure composing the coke oven by preventing the ignition of the gases which it contains.
  • the invention also makes it possible to protect the environment by controlling the tightness of the coke oven doors and by avoiding polluting gas emissions.
  • the invention contributes to strengthening safety conditions in the workplace, by preventing the leakage of hot and harmful gases.
  • the invention also contributes to ensuring better cleanliness of these workplaces.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
  • Special Wing (AREA)
  • Sealing Devices (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Electric Stoves And Ranges (AREA)
  • Electric Ovens (AREA)
EP92402289A 1991-08-21 1992-08-13 Dispositif d'étanchéité entre une porte d'un four à coke et un cadre de porte Expired - Lifetime EP0533515B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9110497 1991-08-21
FR9110497A FR2680561A1 (fr) 1991-08-21 1991-08-21 Dispositif d'etancheite entre une porte d'un four a coke et un cadre de porte.

Publications (2)

Publication Number Publication Date
EP0533515A1 EP0533515A1 (fr) 1993-03-24
EP0533515B1 true EP0533515B1 (fr) 1994-06-22

Family

ID=9416322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92402289A Expired - Lifetime EP0533515B1 (fr) 1991-08-21 1992-08-13 Dispositif d'étanchéité entre une porte d'un four à coke et un cadre de porte

Country Status (11)

Country Link
US (1) US5254222A (es)
EP (1) EP0533515B1 (es)
JP (1) JPH05230465A (es)
KR (1) KR930004440A (es)
AT (1) ATE107687T1 (es)
BR (1) BR9203250A (es)
DE (1) DE69200208T2 (es)
DK (1) DK0533515T3 (es)
ES (1) ES2059198T3 (es)
FR (1) FR2680561A1 (es)
PL (1) PL295677A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5783046A (en) * 1994-11-28 1998-07-21 Gentech, Inc. Process and apparatus for the destructive distillation of rubber
DE59407712D1 (de) * 1994-12-17 1999-03-04 Krupp Uhde Gmbh Koksofentüraggregat mit Abdichtungsmembran
PL193892B1 (pl) * 1999-10-26 2007-03-30 Deutsche Montan Technologie Gmbh Drzwi pieca koksowniczego z kanałem gazowym i sposób regulacji lub sterowania ciśnieniem gazu w komorze pieca koksowniczego
BRPI0406530A (pt) * 2003-01-31 2005-12-13 Montan Tech Gmbh Vedações para portas de fornos alimentados por coque e sua utilização
DE10331658B3 (de) * 2003-01-31 2004-05-06 Deutsche Montan Technologie Gmbh Abdichtungen für Koksofentüren sowie deren Verwendung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1156762B (de) * 1961-11-21 1963-11-07 Didier Werke Ag Koksofentuer mit Sperrgasdichtung
US4016045A (en) * 1976-02-18 1977-04-05 Koppers Company, Inc. Coke oven door sealing system
US4172769A (en) * 1978-09-27 1979-10-30 Koppers Company, Inc. Coke oven door seal and jamb
FR2495631A1 (fr) * 1980-12-05 1982-06-11 Chaudouet Jacques Joint de porte de four a coke

Also Published As

Publication number Publication date
PL295677A1 (en) 1993-05-04
DK0533515T3 (da) 1994-08-22
EP0533515A1 (fr) 1993-03-24
DE69200208D1 (de) 1994-07-28
DE69200208T2 (de) 1994-12-08
JPH05230465A (ja) 1993-09-07
US5254222A (en) 1993-10-19
FR2680561A1 (fr) 1993-02-26
BR9203250A (pt) 1993-04-06
ES2059198T3 (es) 1994-11-01
KR930004440A (ko) 1993-03-22
ATE107687T1 (de) 1994-07-15

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