EP0321641A1 - Porte de four à coke - Google Patents

Porte de four à coke Download PDF

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Publication number
EP0321641A1
EP0321641A1 EP88109104A EP88109104A EP0321641A1 EP 0321641 A1 EP0321641 A1 EP 0321641A1 EP 88109104 A EP88109104 A EP 88109104A EP 88109104 A EP88109104 A EP 88109104A EP 0321641 A1 EP0321641 A1 EP 0321641A1
Authority
EP
European Patent Office
Prior art keywords
coke oven
pressure elements
door
oven door
locking
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.)
Withdrawn
Application number
EP88109104A
Other languages
German (de)
English (en)
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 DE19873743679 external-priority patent/DE3743679A1/de
Application filed by Ruhrkohle AG filed Critical Ruhrkohle AG
Publication of EP0321641A1 publication Critical patent/EP0321641A1/fr
Withdrawn legal-status Critical Current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 with a shield or stopper and a sealing element which is pressed against the chamber frame on the sealing surfaces with a plurality of pressure elements.
  • two or more locking devices on rigid door bodies are connected rigidly to the door body, distributed over the height.
  • Such locking bodies consist of a double-armed pivot lever, which corresponds to locking hooks on the chamber frame.
  • all swivel levers of the locking devices are connected to one another via linkages and rotated together by the door lifting device. This applies to both locking and unlocking.
  • the coke oven door is moved against the door frame by the door lifting device with the pressure that is provided as the door closing pressure. Locking is used to lock the door in this position.
  • the invention has for its object to eliminate these difficulties. According to the invention, this is achieved in that the coke oven door is no longer locked via the conventional locking devices but via an actuation of the pressure elements. As a result, the conventional locking bodies explained above are eliminated. Efforts to separate conventional locking bodies have not been made in the past. Attempts have always been made to improve the locking bodies within themselves. So-called spindle and bubble locks (older type) and spring locks (newer type) have become known.
  • the locking according to the invention with the aid of the pressure elements is preferably used in lightweight doors which consist of a sealing element and a force transmission unit, the force transmission unit being formed by a hollow profile frame which is provided with a large number of automatically rotatable pressure elements.
  • the rotatable pressure elements integrated in the hollow profile frame are moved in whole or in part via chain wheels or via a chain hoist or also several chain hoists from one pivot point or also several pivot points.
  • a torque machine (hydraulically, electrically or pneumatically driven) installed on the furnace operating machine engages and takes over the chains tractive force for locking and unlocking the lightweight door. Slow-turning pneumatic screwdrivers are particularly suitable.
  • the contact pressure on the sealing unit is transmitted by a large number of screws or bolts or springs in order to ensure the tightness between the sealing element and the chamber frame.
  • the hollow profile frame also receives a plurality of bolts distributed on the outer sides, at least 4 (2 above and 2 below). These bolts are picked up when the door is inserted via adjustable hooks which are connected to the chamber frame in order to form a non-positive connection in the locked state.
  • the sprockets including chain hoist are provided with a removable hood.
  • the innovation achieves: that the previously disadvantageous selective introduction of force is avoided because the absolute amounts of the forces introduced are the same at every point of the sealing unit, - that the hollow profile frame is now forced to adapt to each bending line of the chamber frame, ultimately also because of its high flexibility, - That can also be used to accommodate the automatically rotatable pressure elements profiles that are commercially available, such as square hollow profiles, U-profiles, L-profiles, T-profiles, double-T profiles, tube profiles, that this type of locking can also be transferred to conventional doors, - that all individual parts for the manufacture of the rotatable pressure elements were selected so that they consist of commercially available parts, - that the rotating elements integrated in the hollow profile frame are protected against heat, moisture and dust, including hood cover for the chain wheels or chain hoist, - That in addition to the chain hoist, other traction elements are applicable.
  • 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 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 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 in a more dimensionally stable manner at high temperatures, since both each rod can expand freely in the transverse direction to the furnace and the suspension rods 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)
EP88109104A 1987-12-23 1988-06-08 Porte de four à coke Withdrawn EP0321641A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873743679 DE3743679A1 (de) 1987-08-03 1987-12-23 Koksofentuer
DE3743679 1987-12-23

Publications (1)

Publication Number Publication Date
EP0321641A1 true EP0321641A1 (fr) 1989-06-28

Family

ID=6343340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88109104A Withdrawn EP0321641A1 (fr) 1987-12-23 1988-06-08 Porte de four à coke

Country Status (2)

Country Link
EP (1) EP0321641A1 (fr)
DE (1) DE8816920U1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE455265C (de) * 1925-06-17 1928-01-28 Arnold Beckers Selbstdichtende Koksofentuer
DE8313165U1 (de) * 1983-11-10 WSW Planungsgesellschaft mbH, 4355 Waltrop Elastische Koksofentür mit Mehrfachverriegelung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8313165U1 (de) * 1983-11-10 WSW Planungsgesellschaft mbH, 4355 Waltrop Elastische Koksofentür mit Mehrfachverriegelung
DE455265C (de) * 1925-06-17 1928-01-28 Arnold Beckers Selbstdichtende Koksofentuer

Also Published As

Publication number Publication date
DE8816920U1 (de) 1991-03-21

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