EP0321640A1 - Porte de four à coke d'une construction avec écran - Google Patents

Porte de four à coke d'une construction avec écran Download PDF

Info

Publication number
EP0321640A1
EP0321640A1 EP88109103A EP88109103A EP0321640A1 EP 0321640 A1 EP0321640 A1 EP 0321640A1 EP 88109103 A EP88109103 A EP 88109103A EP 88109103 A EP88109103 A EP 88109103A EP 0321640 A1 EP0321640 A1 EP 0321640A1
Authority
EP
European Patent Office
Prior art keywords
coke oven
oven door
door according
door
hollow profile
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.)
Granted
Application number
EP88109103A
Other languages
German (de)
English (en)
Other versions
EP0321640B1 (fr
Inventor
Wolfgang Dr. Becker
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.)
RAG AG
Original Assignee
Ruhrkohle AG
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
Priority claimed from DE19873743157 external-priority patent/DE3743157A1/de
Application filed by Ruhrkohle AG filed Critical Ruhrkohle AG
Publication of EP0321640A1 publication Critical patent/EP0321640A1/fr
Application granted granted Critical
Publication of EP0321640B1 publication Critical patent/EP0321640B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • C10B25/06—Doors; Door frames for ovens with horizontal chambers

Definitions

  • the new shield constructions all have in common that they relieve the weight of the door body very much.
  • the door body can be designed accordingly light. A particular extreme is reached when a sealing element is used for the door body, which is pressed against the door frame of the coke oven by a force transmission unit (hollow profile frame) via a plurality of pressure elements distributed around the circumference.
  • a force transmission unit high profile frame
  • Such coke oven doors have a minimal weight.
  • the invention has for its object to improve the coke oven door between the door body and the shield construction. According to the invention, this is achieved by a door body which is honeycomb-shaped in cross section and which carries the shield construction on the coke side.
  • the honeycomb structure according to the invention is preferably achieved by means of an inner and outer steel plank which are joined to form the honeycomb structure. Both planks together form a sealing unit in that the honeycomb profile is provided with a collar all around at the pointed ends, which is then brought to bear against the sealing surfaces of the door frame.
  • This type of construction of a new type of sealing unit as a one-piece hollow profile of certain geometry achieves: - That the formation of an inner and two outer gas channels that have free access to one another via slots in the inner screed, the supply of free cross-section for the raw gas quantities is considerably increased. It is particularly clear in this that the inner raw gas duct bulges outwards in the door body beyond the level of the sealing surfaces of the door frame. - That due to the large volume gas channel, the static pressure in the gas space assumes values towards zero, especially in the initial phase of the cooking time. If the pressure in the gas supply is set sufficiently high, there is no risk of suction on the sealing surfaces of the coke oven door. Such a sufficiently high pressure is around 8 to 18 mm water column.
  • a pressure of about 2 to 3 mm water column in the gas supply is calculated per m furnace height.
  • This pressure means the static pressure.
  • the dynamic pressure is measured with a pitot tube in the gas flow, the static pressure with a branch from the gas channel.
  • the problem of negative pressure with coke oven doors that are sufficiently tight is not a problem.
  • tight coke oven doors can also be subjected to suction over a long period of time without this affecting the seal.
  • the suction is of course devastating for leaky coke oven doors.
  • the outer insulation is preferably made of mineral fibers and has a thickness of 5 to 15 mm.
  • the outer insulation can be glued on.
  • the mineral fiber provided as insulation on the outside is expediently provided with rain protection. Such rain protection can also be achieved by metal cladding of the mineral fiber.
  • the insulation on the outer screed can be made easier and cheaper.
  • the planks are made of metallic heat-resistant material.
  • the outer screed can also be made from simple steel.
  • That the collar surrounding the honeycomb structure can be fitted with interchangeable sealing elements, for example flat seals and U-seals.
  • other designs of the sealing members for example an L-profile, can also be used.
  • the coke oven door consists of a power transmission unit 1 and a sealing unit 21.
  • the power transmission unit 1 is formed in Fig. 2 as a hollow profile frame 24, the longitudinal spars in Fig. 3 with 22 and the cross bars in Fig. 3 with 23.
  • the longitudinal bars 22 are open at the upper and lower ends. Furthermore, there are 4 openings in the longitudinal spars at the junctures to the transverse spars, so that heating air in the hollow profile frame 24 is unhindered from the transverse beams 23 into the longitudinal spars 22 and flow up there and can emerge from the hollow profile frame 24 at the top.
  • the hollow profile frame 24 shown in the exemplary embodiment according to FIG. 2 is provided with a multiplicity of pressure elements 28 which are rotatable in themselves.
  • these pressure elements 28 are composed of a movable sleeve 5, a spindle 3 fixedly connected to the sleeve 5 and a sprocket 2 fixedly attached to the spindle 3.
  • the spindle 3 is rotatably guided in a threaded sleeve 4 .
  • the threaded sleeve 4 according to Fig. 3 is firmly welded into the hollow profile frame 24 according to Fig. 2.
  • bolts 7 are welded to the outer flanks of the longitudinal spars 22 according to Fig. 3 and to the chamber frame 28 Fig. 3 adjustable hooks for receiving the bolts 7 attached.
  • the number of hooks 8 depends on the number of bolts 7 and is 6.
  • the number of bolts 7 depends on the furnace height. With a furnace height of 4 m, a total of 4 bolts are sufficient, in the arrangement of 2 at the top and bottom of the hollow profile frame 24 according to Fig. 2.
  • the pressing forces of the individual elements 28 according to Fig. 2 on the sealing unit 21 according to Fig. 3 is generated by a rotating chain hoist 27 according to Fig. 2. With this arrangement there is thus a constant force distribution over the power transmission unit 1 according to Fig. 2 to the sealing unit 21 according to Fig. 3 guaranteed.
  • the pivot point 30 according to FIG. 2 for moving the circulating chain 27 according to FIG. 2 can be transferred to each pressure element 28.
  • the torque required for point 30 is generated by a torque motor, which is not shown in the figure. This torque motor can be installed both directly on the power transmission unit 1 and on door operating machines which are present during operation.
  • the square hollow profile frame 24 shown in the exemplary embodiment according to FIG. 3 can be replaced by the choice of other profiles.
  • Geometries of commercially available profiles such as rectangular hollow profiles, U profiles, L profiles, double T profiles, tubular profiles and simple flat profiles allow the pressure elements 28 to be accommodated.
  • the sealing unit 21 consists of the sealing element 9 and an insulation 29.
  • the sealing element 9 forms a hollow body with the element 10.
  • Both elements 9 and 10 are made of a heat-resistant metallic material.
  • a thickness of between 2 and 4 mm per sealing element is provided. The overall height of the furnace and its width have no influence on the thickness, since the restoring forces of the furnace filling do not differ significantly from one another in common furnace sizes.
  • the elements 9 and 10 have the same profile according to Fig. 3 and are firmly connected to each other. A loose arrangement of element 10 on element 9 is feasible.
  • the hollow body formed by the elements 9 and 10 can, on the one hand, be designed as closed and, on the other hand, can be made open via the element 10 towards the interior of the open.
  • the element 10 is formed with lateral slits or is open at the top and bottom in the vertical direction. This results in the possibility of expanding the two gas channels, formed by the shield construction 11 according to FIG. 3 and the side surfaces of the element 10, in order to expand the gas channel formed by the hollow body.
  • the gas channel is expanded by up to 100%. This expansion of the gas channel has a very positive effect on the static pressure behavior in the channel and therefore on the tightness of the door.
  • Fig. 1 the usual door foot does not apply to the door.
  • the inner element 10 according to Fig. 3 takes over the function of a door foot 35 due to its design.
  • a metal U-seal 14 is provided as an exemplary embodiment between the free leg 31 according to FIG. 3 and the sealing surface of the door frame.
  • the sealing unit 21 is held loosely by the power transmission unit 1 in the exposed state via brackets 12 and 25. In the inserted state, the brackets 12 and 25 become ineffective, so that the different rotational capacity due to the different temperature positions of the sealing unit 21 and the power transmission unit 1 is taken into account.
  • cross bars 34 are arranged between the bars 22. These cross bars serve as a lifting point of attack for the claws present on the door lifting machines, which are not shown in the drawings.
  • the "heat shield” 33 no longer consists, as usual, of flat, one-piece, heat-resistant metallic plates of different designs, but instead of a large number of heat-resistant metallic round bars 11 of the same cross-section - arranged transversely to the furnace chamber - In front of the inner screed 10 according to Fig. 3 loosely attached via breakpoints 32.
  • the individual round bars between 20 and 30 mm thick are drilled through at two points to accommodate the suspension.
  • a flat surface is created over the furnace height to accommodate the coal front when filling the coke oven.
  • the individual rods 11 and the suspensions 32 behave more dimensionally stable at high temperatures, since both each rod can expand freely in the transverse direction to the furnace and the suspension rods can extend freely in the vertical direction to the furnace.
  • other geometries of the rod construction with the same physical properties can be integrated, such as square, rectangular and strip-like shapes.
  • the one-piece rod construction according to Figs. 1 and 3 can also be carried out as a multi-part construction over the height of the inner screed 10. Furthermore, the rod construction also allows a rod guide in the vertical direction, not shown in the drawings. Here, the Bars guided in parallel as a continuous unit, held with cross bars distributed over the height.
  • the leveling door 36 according to Fig. 1 and 4 is designed in a circular construction.
  • the leveling box 14 designed as a tube according to Figure 4 takes up the sealing surface 15.
  • a metallic cover 16 is pressed in front of this sealing surface 15 via the force transmission frame 17 via bolts or springs 39.
  • the fixed points 19 and 20 become effective.
  • the fixed point 19 is designed as a hinge in order to pivot the leveling door 36.
  • the fixed point 20 is effective via a handwheel 37 with a spindle which is mounted in the joint 38.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
EP88109103A 1987-12-19 1988-06-08 Porte de four à coke d'une construction avec écran Expired - Lifetime EP0321640B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873743157 DE3743157A1 (de) 1987-08-03 1987-12-19 Koksofentuer mit schildkonstruktion
DE3743157 1987-12-19

Publications (2)

Publication Number Publication Date
EP0321640A1 true EP0321640A1 (fr) 1989-06-28
EP0321640B1 EP0321640B1 (fr) 1991-07-03

Family

ID=6343019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88109103A Expired - Lifetime EP0321640B1 (fr) 1987-12-19 1988-06-08 Porte de four à coke d'une construction avec écran

Country Status (2)

Country Link
EP (1) EP0321640B1 (fr)
DE (1) DE3863539D1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0114183A2 (fr) * 1983-01-21 1984-08-01 Ruhrkohle Aktiengesellschaft Porte pour four à coke à chambres horizontales
EP0124813A2 (fr) * 1983-05-04 1984-11-14 WSW Planungs-GmbH Porte de four à coke de construction légère
EP0223028A2 (fr) * 1985-11-18 1987-05-27 Ruhrkohle Aktiengesellschaft Porte de four à coke à chambres horizontales

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0114183A2 (fr) * 1983-01-21 1984-08-01 Ruhrkohle Aktiengesellschaft Porte pour four à coke à chambres horizontales
EP0124813A2 (fr) * 1983-05-04 1984-11-14 WSW Planungs-GmbH Porte de four à coke de construction légère
EP0223028A2 (fr) * 1985-11-18 1987-05-27 Ruhrkohle Aktiengesellschaft Porte de four à coke à chambres horizontales

Also Published As

Publication number Publication date
EP0321640B1 (fr) 1991-07-03
DE3863539D1 (de) 1991-08-08

Similar Documents

Publication Publication Date Title
EP0317494B1 (fr) Porte de four à coke d'une construction à bouclier céramique
EP0321640B1 (fr) Porte de four à coke d'une construction avec écran
DE4039601C2 (fr)
DE3743157A1 (de) Koksofentuer mit schildkonstruktion
DE3409224C2 (fr)
DE2908839C2 (de) Vorrichtung zur Abdichtung der Kammern von Verkokungsöfen
DE3743679A1 (de) Koksofentuer
EP0321642B1 (fr) Porte de four à coke avec écran métallique
DE3743156A1 (de) Koksofentuer mit metallschild
DE2724982C3 (de) Koksofenkammertürstopfen aus feuerfesten Steinen
EP0114183B1 (fr) Porte pour four à coke à chambres horizontales
EP0383813B1 (fr) Bati de chambre
DE3348043C2 (en) Coke oven door with sheet pile
EP0321641A1 (fr) Porte de four à coke
DE8429277U1 (de) Mehrschaliger Schornstein
DE1302954B (fr)
DE3344976A1 (de) Koksofentuer in leichtbauweise
AT408177B (de) Wärmeisolierendes wandelement für backöfen, waffelbacköfen, waffelbackmaschinen oder dergleichen
DE3147918C1 (de) Hochtemperaturbeanspruchbare Auskleidung für einen Behälter
EP0084366B2 (fr) Porte pour chambre de four à coke
EP0163773B1 (fr) Porte de four à coke à chambres horizontales
DE3440311C2 (fr)
DE2939599A1 (de) Floatglasanlage mit heizeinrichtungen
DE1758785C3 (de) Feuerfeste Ummantelung für Stützglieder von Wärmebehandlungsöfen
DE8201167U1 (de) Koksofenkammertür

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE FR GB IT NL

17P Request for examination filed

Effective date: 19890509

17Q First examination report despatched

Effective date: 19900226

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT NL

REF Corresponds to:

Ref document number: 3863539

Country of ref document: DE

Date of ref document: 19910808

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920611

Year of fee payment: 5

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19930512

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19930519

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19930527

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930630

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19940608

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19940630

BERE Be: lapsed

Owner name: RUHRKOHLE A.G.

Effective date: 19940630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19950101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940608

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19950228

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050608