EP0321640B1 - Porte de four à coke d'une construction avec écran - Google Patents

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

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Publication number
EP0321640B1
EP0321640B1 EP88109103A EP88109103A EP0321640B1 EP 0321640 B1 EP0321640 B1 EP 0321640B1 EP 88109103 A EP88109103 A EP 88109103A EP 88109103 A EP88109103 A EP 88109103A EP 0321640 B1 EP0321640 B1 EP 0321640B1
Authority
EP
European Patent Office
Prior art keywords
coke oven
oven door
insulation
sealing
sectioned
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
EP88109103A
Other languages
German (de)
English (en)
Other versions
EP0321640A1 (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

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

Definitions

  • the invention relates to a coke oven door, consisting of a hollow profile as a sealing unit, formed from an inwardly curved, inner profile plate with a protective shield arranged thereon and an outer, outwardly curved profile plate with external insulation and a collar-like circumferential sealing surface, further consisting of a power transmission unit with pressure elements against the sealing surface and interlocks against the coke oven door frame.
  • 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 easily.
  • 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.
  • Such coke oven doors have a minimal weight.
  • the invention is based on a generic coke oven door, the task of improving the coke oven door between the door body and the shield construction, with regard to the offer of free cross-section for the amount of raw gas and a favorable static pressure, the profile and the wall thickness of the hollow profile with regard Heat stability and flexibility of deformation, a cheaper crane effect, effective insulation and a low-tension and material-saving design of the door body elements.
  • 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 Cross bars 23 can flow into the longitudinal bars 22 and up there and 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 is therefore a constant Distribution of forces via 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 multiplicity 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 level 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.

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  • 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)

Claims (5)

1. Porte de four à coke, comprenant un profil creux en tant qu'unité d'étanchéité, qui est formé par une tôle profilée intérieure, cette dernière étant voûtée vers l'intérieur et présentant un bouclier de protection agencé sur celle-ci, et par une tôle profilée extérieure, qui est voûtée vers l'extérieur et qui présente une isolation extérieure ainsi qu'une surface d'étanchéité périphérique en forme de col, et comprenant en outre une unité de transmission de force avec des éléments de pressage contre la surface d'étanchéité et des organes de verrouillage contre l'encadrement de porte du four à coke, caractérisée par les particularités de la combinaison suivantes:
a) le bouclier de protection contre la chaleur (33) comprend plusieurs barres différentes (11), qui sort agencées l'une au-dessus de l'autre ou l'une à côté de l'autre et qui sont reliées de manière librement dilatable à la poutre de la tôle profilée intérieure (10);
b) une mince couche d'isolation de 5 à 15 mm est adjointe en tant qu'isolation extérieure (29) à la poutre de la tôle profilée extérieure (9);
c) le profil creux (9, 10) de l'unité d'étanchéité (21) est réalisé en forme d'alvéole, c'est-à-dire de manière à former une section transversale en hexagone régulier; et
d) l'unité d'étanchéité (21) est reliée, de manière à permettre un coulissement, à l'unité de transmission de force (1) par des éléments de support.
2. Porte de four à coke suivant la revendication 1, caractérisée en ce que l'isolation (29) est constituée de fibre minérale.
3. Porte de four à coke suivant la revendication 1 ou 2, caractérisée par une isolation collée.
4. Porte de four à coke suivant une ou plusieurs des revendications 1 à 3, caractérisée en ce que l'isolation (29) présente une protection contre la pluie.
5. Porte de four à coke suivant la revendication 4, caractérisée en ce que la protection contre la pluie est formée par une feuille de métal doublée.
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 EP0321640A1 (fr) 1989-06-28
EP0321640B1 true 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)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA835098B (en) * 1983-01-21 1984-04-25 Ruhrkohle Ag Coke oven doors for horizontal chamber coke ovens
DE3344976C2 (de) * 1983-05-04 1985-02-28 WSW Planungsgesellschaft mbH, 4355 Waltrop Koksofentür in Leichtbauweise
DE3540845A1 (de) * 1985-11-18 1987-05-21 Ruhrkohle Ag Koksofentuer fuer einen horizontalkammer-verkokungsofen

Also Published As

Publication number Publication date
EP0321640A1 (fr) 1989-06-28
DE3863539D1 (de) 1991-08-08

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