EP2762549A1 - Plaque de protection réfractaire pour une porte de four à coke - Google Patents

Plaque de protection réfractaire pour une porte de four à coke Download PDF

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Publication number
EP2762549A1
EP2762549A1 EP14000316.1A EP14000316A EP2762549A1 EP 2762549 A1 EP2762549 A1 EP 2762549A1 EP 14000316 A EP14000316 A EP 14000316A EP 2762549 A1 EP2762549 A1 EP 2762549A1
Authority
EP
European Patent Office
Prior art keywords
shield plate
coke oven
front panel
plate according
oven door
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
EP14000316.1A
Other languages
German (de)
English (en)
Other versions
EP2762549B1 (fr
Inventor
Diethardt Küppers
Gürsel Dogan
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.)
Beck u Kaltheuner Feuerfeste Erzeugnisse & Co KG GmbH
Original Assignee
Beck u Kaltheuner Feuerfeste Erzeugnisse & Co KG GmbH
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 Beck u Kaltheuner Feuerfeste Erzeugnisse & Co KG GmbH filed Critical Beck u Kaltheuner Feuerfeste Erzeugnisse & Co KG GmbH
Publication of EP2762549A1 publication Critical patent/EP2762549A1/fr
Application granted granted Critical
Publication of EP2762549B1 publication Critical patent/EP2762549B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids, removable covers
    • F27D1/1858—Doors

Definitions

  • the present invention relates to a refractory shield plate of a coke oven door.
  • the refractory lining has a front panel which is fastened to the substructure by two round bars engaging in grooves formed on opposite end faces of the front panel. At the round bar each holding leg is arranged.
  • the refractory lining of the coke oven door is formed by several side by side arranged in a plane front panels. Holding legs of round bars, which are assigned to adjacent front panels, are connected to one another via a common clamping screw. Between the clamping screw and the round iron, a support is provided so that tightening the clamping screw causes the holding legs are pivoted away from each other with the associated bar iron. By this attachment, the front panel is held positively and braced in its plane.
  • the bracing of the round iron requires trained personnel, as insufficient bracing a proper attachment of the front panel is not guaranteed, whereas excessive tension can lead to excessive compressive stresses within the front panel.
  • thermal expansion occurs, which exerts an additional pressure on the clamped front panel.
  • the heat deflection strength of the front panel is very low due to the two-sided application of temperature, so that an impermissibly high pressure can lead to breakage of the panel.
  • the clamping elements are permanently deformed due to the low bending strength at the temperature and no longer reliably fulfill their clamping function.
  • the present invention seeks to provide an improved refractory shield plate for a coke oven door. It should in particular from the EP 0 317 494 A2 improve known structure in which the front panel is arranged to form a space used as a gas collecting space at a distance from the substructure, ie the actual door body.
  • the improvement intended by the present invention is intended to simplify both the assembly of the refractory shield plate and to eliminate the compressive stress of the front plate, thereby increasing the service life of the refractory shield plate.
  • the present invention proposes a refractory faceplate having the features of claim 1.
  • the shield plate of the coke oven door has retaining rails which engage over the front plate, so that it is prevented that the front panel inadvertently detached from a substructure of the coke oven door.
  • the support rails are accordingly fastened to the substructure of the coke oven door.
  • the front plate is held on the coke oven door usually on the top and bottom by the attached support rails in all three directions.
  • at least two support rails are provided, the front plate respectively on opposite sides, in particular the horizontal sides, d. H. which overlap in the x-z plane extending outer surfaces of the front panel.
  • the support rail is regularly firmly connected to the substructure.
  • the overlapping serves to secure the front plate, preferably in x, y, and z-direction, although the front panel within limits, d. H. with a certain play, remains mobile.
  • a gap of between 2 and 4 mm, measured at ambient temperature is regularly provided between all parallel surfaces between the front panel and the support rail.
  • Each retainer rail preferably has an overgrip leg that engages the front panel with play, d. H. the front panel prevents excessive movement perpendicular to all levels of the front panel.
  • the overlap leg can engage in a longitudinal groove which is recessed on the front panel.
  • the overgrip leg is exposed on the outside of the front panel, d. H. overlaps the front panel surface. In this case, however, designs are to be preferred in which the usually formed of a metallic material over-grip leg does not dominate the front surface of the front panel and is rather flush with this front surface.
  • the overgrip is derived from an L-shaped base that engages the faceplate substantially over its entire width with play.
  • the L-shaped base grips the front panel in the longitudinal direction of the support rail and prevents excessive movement transverse to the support rail and in the plane of the front panel and this direction of movement is also referred to as movement in the X direction.
  • the L-shaped base in the height direction, ie Z-direction, of the front panel usually has an extension which is substantially smaller than the thickness of the front panel.
  • the L-shaped base usually has a height extent of not more than 50% of the thickness of the front panel.
  • the L-shaped base preferably extends substantially the entire width of the front panel.
  • the overlap leg is bordered on both sides of the front panel with play in the longitudinal direction of the support rail.
  • the front plate has a provided on one end side longitudinal groove into which the over-grip leg fits, so that it is provided on the front side substantially flush with the front panel.
  • a part of the L-shaped base overlaps the front panel up to the top. Accordingly, the front panel has a recess into which the overgrip leg fits with play, so that it is provided at the top substantially flush with the front panel. This creates a design in which the framed front panel essentially has a flat upper side.
  • a corresponding design also results at the front end of the respective support rails.
  • the L-shaped base usually revolves so that the L-shaped base forms edge and engages the front panel, and also at the front ends of the support rail within a recess of the front panel, so that the support rail in the circumferential direction in each case substantially flush with the outer peripheral surfaces the front panel are provided.
  • the overgrip leg has an extension in the longitudinal direction of the retaining rail corresponding to about 30% to 75% of the length of the retaining rail and is provided substantially centrally of the longitudinal extension of the retaining rail.
  • the retaining rail has at least one rotationally introduced bolt. This bolt is used to attach the retaining rail to the substructure of the coke oven door.
  • the bolt preferably has a head which is received between retaining webs of the retaining rail.
  • the front panel is preferably provided with a recess for receiving the retaining rail. It should be achieved that the front panel is provided between the support rails substantially flush with a contact surface of the support rail.
  • the joints between the front panel and the support rail With a view to a sufficient possibility of thermal expansion in the operation of the coke oven, to avoid the formation of graphite in the open joints, it is proposed to fill the joints between the front panel and the support rail with fiber mat.
  • the gap is usually between 2 and 4 mm.
  • all joints are filled with such a fiber mat. It is usually a ceramic fiber mat.
  • the present invention provides a coke oven with a combustion chamber under protection, which is closable with a coke oven door.
  • This coke oven door has the previously discussed shield plate according to the invention.
  • FIG. 1 an embodiment of a refractory shield plate with a refractory front plate 2 and the both sides of the front plate 2 cross-holding rails 4 is shown.
  • the support rails 4 have an extension in the X direction corresponding to the transverse dimension of the front panel 2.
  • the support rails 4 have an L-shaped base 6 which is formed on the open sides of the support rails 4, ie over the entire longitudinal extent in the X direction and beyond the front side, that extends in the Y direction.
  • a formed by the L-shaped base 6 edge 7 projects beyond a contact surface 8 of the support rail 4. As in particular FIG. 8 can be seen, this edge 7 surrounds the front panel 2 U-shaped.
  • the front panel has 2 end-side recesses 10 and longitudinal recesses 12, in which the L-shaped base 6 is received, so that the outside of the support rail 4 is formed flush with the end faces 13 of the front panel 2.
  • the L-shaped base is surmounted by an overlap leg 14, which projects beyond the front plate 2 on its vertical side 16 and accordingly exposes on its free front surface 16.
  • the front panel 2 has a front-side recess 18, in which a parallel to a contact surface 20 of the support rail 4 shaped locking portion 22 is received (see. FIG. 8 ).
  • the grip leg 14 has a length corresponding to about 40% of the total length (extension in the X direction) of the front panel 2.
  • the end face of the front panel 2 is also provided with a longitudinal groove 19 in which the grip leg 14 is received.
  • the cross-over leg 14 is formed in a split formed with a central groove 23 extending in the z-direction.
  • These Groove 23 extends in the z-direction in somewhat to the upper end of the rim 7 and ends in a widened eye.
  • the bolt is rotationally received after insertion into a recessed on the retaining rail 4 bore 30 which is formed as a slot.
  • FIGS. 7 . 9 and 10 illustrate further a gap 32 which is provided between the front plate 2 and the support rail 4 and which allows a holder of the front panel on the support rails 4 with play.
  • the front plate 2 via the support rails 4, although held positively in each direction of the Cartesian coordinate system x, y, z.
  • this support is made with play, so that thermal expansion during heating or cooling of the coke oven lead to no significant mechanical tension of the refractory front panel.
  • the joints 32 are usually filled by a fiber mat, not shown, to prevent graphite formation.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Coke Industry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
EP14000316.1A 2013-01-30 2014-01-29 Plaque de protection réfractaire pour une porte de four à coke Active EP2762549B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202013000931.4U DE202013000931U1 (de) 2013-01-30 2013-01-30 Feuerfeste Schildplatte einer Koksofentür

Publications (2)

Publication Number Publication Date
EP2762549A1 true EP2762549A1 (fr) 2014-08-06
EP2762549B1 EP2762549B1 (fr) 2018-12-05

Family

ID=50028729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14000316.1A Active EP2762549B1 (fr) 2013-01-30 2014-01-29 Plaque de protection réfractaire pour une porte de four à coke

Country Status (2)

Country Link
EP (1) EP2762549B1 (fr)
DE (1) DE202013000931U1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186774A2 (fr) * 1984-12-22 1986-07-09 Ruhrkohle Aktiengesellschaft Bouchon pour porte de four à coke
DE8608319U1 (de) * 1986-03-26 1986-07-10 Ruhrkohle Ag, 4300 Essen Halterung für keramische Platten an Koksofentüren
DE3505551A1 (de) * 1985-02-18 1986-08-21 Ruhrkohle Ag, 4300 Essen Koksofentuer mit einem keramischen stopfen
EP0317494A2 (fr) 1987-11-17 1989-05-24 Dr. C. Otto Feuerfest GmbH Porte de four à coke d'une construction à bouclier céramique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186774A2 (fr) * 1984-12-22 1986-07-09 Ruhrkohle Aktiengesellschaft Bouchon pour porte de four à coke
DE3505551A1 (de) * 1985-02-18 1986-08-21 Ruhrkohle Ag, 4300 Essen Koksofentuer mit einem keramischen stopfen
DE8608319U1 (de) * 1986-03-26 1986-07-10 Ruhrkohle Ag, 4300 Essen Halterung für keramische Platten an Koksofentüren
EP0317494A2 (fr) 1987-11-17 1989-05-24 Dr. C. Otto Feuerfest GmbH Porte de four à coke d'une construction à bouclier céramique

Also Published As

Publication number Publication date
DE202013000931U1 (de) 2014-05-05
EP2762549B1 (fr) 2018-12-05

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