FR2561658A1 - COKE OVEN DOOR PROVIDED WITH A COMBINED SEALING AND LOCKING SYSTEM - Google Patents

Abstract

IN A DOOR CLOSING THE CHAMBER OF A COKE OVEN, A SEALING PLATE 2 IS SUSPENDED WITH CLEARANCE FROM A SUPPORT ELEMENT 1, WHILE SLIDING WITH RESPECT TO THE LATTER, PERPENDICULARLY TO THE MEDIAN PLANE. PRESSURE SPRINGS 16, DISTRIBUTED OVER THE PERIOD OF THE SUPPORT ELEMENT 1, ARE APPLIED DIRECTLY AGAINST THE SEALING PLATE 2, PRESS IT AGAINST A SEALING FRAME 4 AND PRESENT AN ELASTIC STROKE CONFERRING THEIR THE ROLE OF A LOCKING DEVICE. THE FLAT PANEL OF PLATE 2 MAY BE PROVIDED LATERALLY WITH A PERIPHERAL SEALING RING 3 PERPENDICULAR TO THE PLAN OF THE SAID PLATE AND APPLYING AGAINST THE FRAME 4 OF THE DOOR.

Description

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  COKE OVEN DOOR MN IE OF A COMBINED SYSTEM

SEALING AND LOCKING

  The present invention relates to a coke oven door for

  shut off the chamber of a horizontal chamber oven intended for production

  S tion of coke, this door comprising a body constituted by a frame

  profiled and produced as a support element, as well as a

  that sealing which is separated from said body of the door, is retained by the latter and whose sealing ring is pushed, in the position

  locking, by means of at least one locking device

  roiaiilage against the frame of the oven chamber.

  In such a coke oven door which is the subject of a proposal

  older, the door body consists of a separate force transmission assembly and a separate sealing assembly connected to said force transmission assembly with little play, for example by means of a hinge; in this case, pressure bolts, which can be produced in the form of screws or be retained elastically,

  are evenly distributed around the perimeter of the door body

  killed by a frame made of hollow profiles. The purpose of these bolts is to

  press the sealing element evenly against the sealing surface

  you. This door also has a locking mechanism classi-

  qlue with spring or locking pin.

  The object of the invention is to produce a coke oven door of the

  aforementioned type, comprising a support element and a sealing plate

  individual tee, so that it is possible to dispense with the conventional door locking device comprising a locking spring or pin, and that said sealing plate

  adapts itself to deformations of the door frame above

  likely to occur during the operation of the coke oven.

  Ein relying on a coke oven door of the type described below

  above, the object of the invention is achieved by the fact that the sealing plate is suspended with clearance from the support element and can slide relative to the latter, perpendicular to the median plane; and by the fact that pressure springs, distributed at intervals

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  determined on the periphery of the support element, are applied directly against the sealing plate, press the latter against the sealing surface of the door frame and have an elastic stroke whose value enables them to fill the function of door locking mechanisms, conventional until now. The invention further provides that the sealing plate consists

  in a flat panel laterally provided with a peripheral sealing ring

  sheave which extends perpendicular to the plane of the sealing plate and comes to bear against the door frame, and that this sealing ring is installed, on said sealing plate, mobile

  in the longitudinal direction of the oven chamber.

  According to another characteristic of the invention, the suspension of the sealing plate on the support element is preferably ensured by two support studs mounted at the height of the upper end of the plate, and penetrating into slots which are practiced

  in the support element and in which the legs slide.

  The invention further provides for installing, on the sealing plate, at least one profiled iron projecting in the direction of the support element, passing right through an orifice in this support element and provided, at its end , a bulge to limit sliding

  of the sealing plate with respect to the support member.

  According to a preferred embodiment of the invention, the profiled frame forming the support element consists of a double T profile; in this case, the slots or orifices intended to receive the support pins and the profiled irons are formed in the two wings

  of the double T profile which are turned towards the oven chamber.

  In producing the door according to the invention, the device

  locking device may consist of one or more locking zones

  the beam, each of which is fitted with a locking beam, does not

  neither spring nor locking pin. To lock the door, the beams then engage behind the locking hooks

  mounted in the conventional manner on the frame of the oven chamber.

  Compared to the doors of coke ovens of known construction, the essential difference lies in the fact that the sealing plate

  installed with play on the support element is suspended from sliding-

  relative to the latter, and that said plate and said element are connected to each other only by springs made of such

  so that we can dispense with the classic locking device

  door age. It is thus guaranteed that the sealing plate and the support element can deform freely and independently of one another according to the mechanical and thermal stresses which are manifested, so that the sealing plate can s '' optimally adapt to any deformation of the door frame. The embodiment in accordance with the present invention allows the use of springs which have large elastic strokes and which, in addition to their known function of resiliently pressing the sealing ring against the door frame, fulfill the function

  of the spring or of the classic locking pin. Large cour-

  its elastic does not translate into a fall or increase

  significant pressure during variations in the stroke due to the adapta-

  yours, and they imply that the unlocking stroke of 15 mm usually necessary can be absorbed without difficulty. In the door

  in accordance with the present invention, the flexibility of the sealing system

  it is obtained in the first place not by the sealing ring,

  but by the entire sealing plate.

  Another advantage lies in the fact that it is possible to dispense with the shaping of bearing surfaces of the housings of the locking device, as well as a large part of the bearing surfaces of the sealing ring or of the housings. springs, respectively. The

  rod and the sealing plate have the same coefficient of expansion.

  The door can be installed in existing installations and can

  be made of standard steel profiles. Assembly and operation

  tation are of modest complexity since the seal plate

  it adapts to any deformation of the door frame, without

  require adjustment or formwork operations.

  The invention will now be described in more detail by way of

  in no way limiting example, with reference to the attached drawings on the-

  which: Figure 1 is a cross section along the line I-I in Figure 2 of a coke oven door according to the invention; Figure 2 is a front view with cutaway of said door; and Figure 3 is a side elevation with cutaway

this door.

  In the embodiment illustrated in the drawings, a support element 1 consists of a rectangular frame made of double-T profiles. A sealing plate, identified by the reference numeral 2, is a flat panel extending parallel to the support element, and on the edge of which is installed a peripheral sealing ring 3 which extends perpendicular to the sealing plate 2 and is pressed, in the locking position, against a frame 4 of the door surrounding the opening of the coke oven chamber. The fastening of the rod 3 against the sealing plate is ensured by bolts 5 with hooks which, as shown in FIGS. 2 and 3, are distributed at regular intervals around the periphery of the sealing plate 2. This fixing takes place , by means of nuts 7, on fixing shoes 6

  rigidly connected to the sealing plate 2.

  Instead of a flat sealing plate as illustrated in the drawings, the possibility is offered of using a U-shaped plate or of installing, on the edge of the sealing plate, a peripheral frame angle; in this case, the anchor bolts can be provided on the wing of the angle frame or the U-profile protruding beyond the sealing plate in the direction of

  the supporting element, so that the fixing shoes are superfluous.

  When using an angle frame or a profile respectively

  U, the possibility is offered to make the sealing plate

  sequentially thinner. This sealing plate can also be

  provided with insulation laid flat.

  The left half of FIG. 1 shows an adjustment screw 8 also subject to a fixing shoe 6. By rotation printed on this screw 8, it is possible to act by means of a feed dog 9 on the sealing ring 3, and to move the latter in the longitudinal direction of the oven chamber. Adjustment screws of this kind are not absolutely necessary; they are planned,

  if necessary, when the door frame shows deformation

  excessive information that the actual sealing plate is not

able to compensate.

  The sealing plate 2 is not rigidly installed on

  the support element 1 but it is only suspended, by its end

  upper half, by means of two support pins 10 consisting of

  flat bars which are rigidly connected to said sealing plate.

  These support pins engage in slots made in the two

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  wings, facing the coke oven chamber, of the H-shaped profile forming the support element, as illustrated in the left half of Figure 1 as well as Figures 2 and 3. Figure 2 shows the two studs 10, only one of which is visible in FIG. 1. There are further provided, in the upper and lower regions of the sealing plate, guide members consisting of profiled bars 11 which, in a similar manner to the support pins, pass through holes made in the wings of the support element. These guide members do not fulfill any support function. Their purpose is to prevent the sealing plate from dissociating completely from the support element. To this end, the ends of the profiled irons 11 are provided with a bulge 12 by which the horizontal offset of the plate

  sealing relative to the support member is limited. Of course

  du, the bulges 12 must be larger than the width of the

orifices.

  Reference 13 designates two conventional locking beams.

  ge used to lock the door in the two locking zones and engaging, in the locked position, behind locking hooks 14 which are fixed to the frame of the door surrounding the chamber of the coke oven. Usually the locking device has a locking spring or pin. A feature of the present invention is that this spring or locking pin can be omitted. The invention provides instead of installing pressure springs 16 which are distributed at determined intervals around the periphery of the support element 1 and which, in

  the embodiment shown, are housed in boxes 15 fi-

  preferably fixed in recesses of the two wings of the support element facing outwards, as illustrated on the

  Figure 1. These springs 16, housed in the cylindrical housings 15, pres-

  evenly feels the sealing plate against the door frame 4

  cheity 2, and therefore also the sealing ring 3. In this way, this sealing ring is resiliently mounted. Since the embodiment according to the invention allows the use of springs having large

  elastic strokes, the additional stroke of approximately 15 mm required

  unlocking can be easily absorbed, without causing an excessive increase in the constraints imposed on the

springs and steel parts.

  Consequently, the springs must absorb both the travel to the unlocked condition and the additional travel

  which is necessary when locking and unlocking. They must

  Furthermore, they are designed so that the elastic forces during small variations in travel in the locked state, resulting from the deformation of the door frame, neither decrease nor increase.

  notably, and that during the respective unlocking processes

  lage or locking, these springs do not compress to or near their blocking length, so that the

  elastic forces become very large.

  It goes without saying that many modifications can be made.

  tees at the door described and shown, without departing from the scope of the invention

tion.

Claims (8)

REVENbDICATIONS   1. Coke oven door for closing the chamber of a horizontal chamber oven intended for the production of coke, door comprising a body constituted by a profiled frame and produced as a support element, as well as a plate the seal which is separated from said body of the door, is retained by the latter and whose sealing ring   is pushed into the locked position by means of   diary of a locking device provided with at least one beam of   locking, against the frame of the oven chamber, charac-   terrified by the fact that the sealing plate (2) is suspended with play on the support element (1) being able to slide relative to the latter, perpendicular to the median plane; and by the fact that pressure springs (16), distributed at determined intervals around the periphery of the support element, are directly applied against the sealing plate (2), press the latter against the sealing surface of door frame and have a stroke   elastic whose value allows them to fulfill the function of disposi-   door locking devices, hitherto conventional.   2. Coke oven door according to claim 1, characterized in that the sealing plate (2) consists of a flat panel provided laterally with a peripheral sealing ring (3) which extends perpendicular to the plane of said plate and comes to apply against the door frame (4).   3. Coke oven door according to claim 2, characterized in that the sealing ring (3) is installed, on the sealing plate (2), movable in the longitudinal direction of the oven chamber.   4. Coke oven door according to one of claims 1 and 2,   characterized in that the sealing plate (2) is configured as a U.   5. Coke oven door according to any one of claims   1 to 4, characterized in that the suspension of the sealing plate   support (2) on the support element (1) is preferably ensured by   two support pins (10) mounted at the height of the upper end   of said plate, and penetrating into slits which are made   in the support element and in which the legs slide.   6. Coke oven door according to any one of claims   1 to 5, characterized in that at least one profiled iron (11), installed on the sealing plate (2), projects in the direction of the support element, passes right through an orifice in this support element and is provided at its end with a bulge (12) in order to limit the sliding of said sealing plate by report to said support element.   7. Coke oven door according to any one of claims   1 to 6, characterized in that the profiled frame forming the support element consists of a double T profile; and by the fact that the slots or orifices intended to receive the support pins (10) and the profiled bars (11) are formed in the two wings of the profile   in double T which are facing the oven chamber.   8. Coke oven door according to any one of the claims.   like 1 to 7, characterized in that the locking device for this door consists of one or more locking zones, each of which is provided with a locking beam (13) having neither spring nor locking pin, said beams engaging behind the locking hooks (14) mounted on the frame the oven chamber.