TW202231855A - Coke oven door sealing device, coke oven chamber and coke oven battery - Google Patents

Abstract

Coke oven door sealing device for sealing a coke oven door against a sealing surface of a coke oven door frame of a coke oven chamber, the coke oven door sealing device comprising: a coke oven door having a panel unit for closing the coke oven chamber; a fixture device for holding a sealing piece in a peripheral area of the coke oven door opposite to the sealing surface; the sealing piece, wherein the sealing piece is configured to be operated in a first operating state or a second operating state; wherein, in a first operating state, the sealing piece is spaced at a first distance from the sealing surface arranged opposite of the sealing piece; wherein, in a second operating state, the sealing piece contacts the sealing surface; such that in the second operating state, the sealing piece and the panel unit at least partially shape a cavity and wherein the coke oven door sealing device further comprises a first insulation element for thermally insulating the sealing piece, wherein the first insulation element is arranged on the fixture device.

Description

Coke oven door sealing device, coke oven chamber and coke oven group

The invention relates to a coke oven door sealing device, a coke oven chamber and a coke oven group (or called a coke oven group).

During the coking process, components of the coke oven gas accumulate on the inside of the coke oven door of the coke oven chamber of the coke oven. These components can negatively affect the tightness of the coke oven door. Furthermore, when these components escape from leaking coke oven doors, they may also represent and/or form part of environmentally harmful gases, such as carbon dioxide emissions.

In order to reduce the risk of leakage and maintain the tightness of the coke oven door, the prior art sealing concept of the coke oven door relies on a so-called "metal-to-metal seal", whereby the metal elements of the coke oven door directly contact the coke oven chamber metal coke oven door frame.

US Patent No. 5,556,515 describes a coke oven door comprising a metal frame for locking the door in a closed position, a seal extending around the frame having a seal adapted to fit on the coke oven door frame Front edge for surface contact for continuous sealing. The seal is made of heat-resistant metal.

Japanese Patent No. JPH6-10347 describes a coke oven door sealing device of a horizontal chamber furnace-type.

Patent SU 1661188 A1 describes a sealing device for coke oven doors.

Japanese Patent JP S 48 74846 U describes a coke oven cover and coke oven body in which an annular hollow gasket is inserted.

The sealing system based on the metal-to-metal sealing concept almost suppresses the slight possibility of adjusting the coke oven door after installation. The elements of these metal-to-metal sealing systems are firmly connected to each other.

In order to further reduce the risk of leakage and further maintain the tightness of the coke oven door, it is also necessary to clean the coke oven door regularly. Therefore, mechanical or pneumatic cleaning methods must be regularly applied to remove the slag from the door. However, existing coke oven doors have elements and/or parts that are difficult for operators to clean. For example, existing coke oven doors are equipped with so-called "double knives" which, when viewed in cross-section profile, form a U-shaped channel. These double knives provide double sealing surfaces for coke oven doors. However, the space enclosed by these double knives cannot be cleaned manually, so a robot that dispenses a pressurized medium, such as water at about 40 bar, is used to clean such coke oven doors. Although there are regular cleaning procedures, it is still necessary to exert a relatively high force on the coke oven door to maintain a proper sealing pressure between the coke oven door double knife and the coke oven door frame and coke oven frame (frame).

The coke oven chamber may be one of many coke oven chambers in a coke oven battery. For example, a traditional coke oven chamber can be about 8 meters high, 20 meters wide and 60 cm thick. In a coke oven battery, the coke oven chambers are usually arranged between two heating walls, which can be operated alternately to heat the coke oven chambers of the heating chambers, respectively. There are usually different temperatures at different points along the walls of the coke oven chamber and the interior of the coke oven chamber. In other words, the furnace wall and the coke oven chamber have a high temperature gradient. When a coke oven is started, eg after being filled with coal, the uneven temperature distribution may cause parts and/or elements of the coke oven to expand to different degrees or at different rates. Coke oven door frames and coke oven doors are typically cooled by natural air convection, and the outside (housing) is exposed to temperatures of approximately 300°C.

The difference in temperature causes the coke oven door frame and coke oven door to buckle due to thermal expansion. This curvature also results in uneven surfaces between the coke oven door frame and the coke oven door. As a result, metal-to-metal seals tend to be prone to leaks. Any leakage that occurs may even further lead to fouling or blockage between the coke oven door and the coke oven door frame. Furthermore, escaping gases may pose a health risk to operators and/or persons living in the vicinity of the coke oven (coke oven) bank.

If a leak is detected, operators typically attempt to seal the leak and maintain tightness between the coke oven door and coke oven door frame. To do this, the operator performs manual tightening and/or sealing methods. For example, operators may try to stop the leak by applying hardening fluid or sealant, which takes a lot of time and cost. In addition, the installation of said substances is also generally very inefficient, as further leakage may still occur due to further bending of the coke oven door and/or the coke oven (door) frame during the coking process.

The object of the present invention is to provide a coke oven door sealing device, a coke oven chamber and a coke oven bank, which reduce the occurrence of leakage. This object is achieved by the coke oven sealing device, coke oven chamber and coke oven battery of the independent claim.

The present invention is based on the discovery that a specific arrangement of elements of a coke oven door seal can constitute a self-adjusting mechanism that is not affected by thermal deformation of the coke oven door and/or the coke oven door frame. Furthermore, the present invention is also based on the discovery that a large flame may be generated when the coke oven door is opened. The inventors have found that these flames are generated at a distance from the seal.

It seems that because the hot gases are rushing out of the coke oven chamber at an extremely fast rate as soon as the coke oven door is opened, it takes a certain amount of time for these gases to travel a certain distance before the gases and the ambient air are sufficiently mixed to catch fire. It has been found that the distance between the flame and the seal is sufficient to keep the temperature of the seal well below the expected temperature, in fact - very surprisingly - below the critical temperature of the seal.

Surprisingly, the seal is therefore not directly exposed to the flame and therefore the temperature rating of the seal is much lower than expected and below the critical temperature of the seal. The seal will neither come into direct contact with the flame nor suffer structural damage from the heat transferred from the coke oven and/or the flame and/or the hot coke oven gas. Thus, a flexible seal, such as a seal made of silicone or other suitable material, can be used to provide a self-regulating sealing mechanism.

Due to the arrangement with a self-regulating sealing mechanism and flexible hermetic seals, the volume of escape coke oven gas is significantly reduced. As a result, the number of leaks during coking that requires the operator to apply hand tightening and/or sealing methods is greatly reduced. The operability of the coke oven is thus specifically enhanced.

The negative impact of coke oven gas escaping on the environment is significantly reduced.

The invention relates to a coke oven door sealing device for sealing a coke oven door on a sealing surface of a coke oven door frame in a coke oven chamber. The coke oven door sealing device includes: a coke oven door having a panel unit for closing the coke oven chamber; a holding device for holding a seal in the coke oven opposite the sealing surface a peripheral region of the door; and the seal, wherein the seal is configured to operate in a first operating state or a second operating state. In the first operating state, the seal is spaced at a first distance from the sealing surface opposite the seal. In the second operating state, the seal is in contact with the sealing surface such that, in the second operating state, the seal and the panel unit at least partially form a cavity.

The self-adjusting mechanism is based on the so-called "radial tightening principle", which is quite insensitive to thermal deformation and therefore does not require doors and frames compared to the "axial tightening principle" A particularly rigid connection between them. According to the radial tightening principle, the force for sealing the coke oven door with the coke oven door frame is applied radially along the sealing surface. Therefore, the coke oven door sealing device is less prone to thermal deformation of its elements. In addition, the present invention also allows for faster cleaning and easier maintenance of the coke oven door sealing device due to the interchangeable elements of the device. Therefore, the occurrence of leakage is effectively reduced.

"Coke oven door" refers to any openable and/or closable element or door configured to separate the coke oven chamber from the external environment of the coke oven chamber of the coke oven battery. A coke oven door may be embodied as a door, cover, flap, hatch, port, lid, cap or similar closing device. Since the inner side of the coke oven door is arranged to be in contact with the inner chamber of the coke oven chamber, the inner side of the coke oven door is in contact with hot coal and/or coke during the coking process. Typically, the inner tie is configured in a fireproof manner and presents a fireplug extending into the coke oven chamber, wherein the fire hydrant is configured to prevent heat loss. Usually, a coke oven chamber has two coke oven doors, which are arranged opposite each other. The first coke oven door may be referred to as the "pusher side" of the coke oven door. The pusher side is the side that is configured to allow the machine to push coal and/or coke to the other side of the coke oven chamber, and this side is referred to as the "coke side". The coke oven door allows material to be filled into and/or removed from the coke oven chamber. In addition, coke oven doors prevent coal/coke and coke oven gases from escaping from the coke oven chamber.

"Coke oven door frame", referring to the frame/coke oven frame respectively, refers to the frame surrounding the opening which can be closed by the coke oven door. This opening may constitute the opening of the coke oven chamber. When the coke oven door is in the closed position, the coke oven door frame or at least a portion of the coke oven door frame is in direct contact with the coke oven door or an element of the coke oven door, such as a panel unit of the coke oven door.

"Panel unit", referring to the panel/(door) leaf respectively, refers to an element of a coke oven door that provides a coke oven chamber barrier/closure. This panel unit can be integrated with the coke oven door. Alternatively, this panel unit can be connected/attached/attached to the coke oven door. When the coke oven door is in the closed position, at least a part and/or one side of the panel unit is in direct contact with the coke oven chamber. For example, the panel unit may be a display of flammable sheet metal. At least a portion of the panel units may be air cooled.

"Sealing surface of the coke oven door frame" means the surface, surface portion or area that comes into contact with the coke oven door, particularly when the coke oven door is in the closed position and the seal is in the second operating state. . The sealing surface may be, for example, a smooth surface on a coke oven door frame or a lateral surface of a collar member of a coke oven door frame. This ring member can be an integral part of the coke oven door frame or attached to the coke oven door frame.

"Seal", respectively, refers to any suitable element for sealing the coke oven door to the coke oven door frame. In particular, a seal refers to a non-metallic element configured to seal the coke oven door to the coke oven door frame. This seal can be made of elastic material. Elastomeric material refers to a material with enhanced elasticity. Elasticity is the property of an object and/or material that changes its shape when a force is applied and returns to its original form when the force is removed. For example, the seal may comprise or consist of or be formed from at least one of the following: silicone, in particular so-called high temperature silicone, annular silicone gaskets, (sealing) rubber, gas-filled seals and/or mixtures thereof. More for example, the elastic material may be formed of or comprise at least one of plastics, synthetic materials, caoutchouc materials, similar materials, or mixtures thereof. Additional or alternative suitable materials and/or products for forming the seal may include or consist of at least one of the following: silicone (eg VMQ, FVMQ), styrene butadiene rubber (styrene butadiene rubber ( SBR))), ethylene propylene (EPDM), chloroprene (CR), nitrile-rubber (NBR), hydrogenated-nitril-rubber (HNBR) ), viton fluorocarbon-rubber (FKM), or similar materials. Additionally, or alternatively, the seal may be, for example, further exhibiting fibrous elements, such as glass and/or ceramic fiber seals, wherein the fibrous elements are arranged in the sealing On and/or inside. The seal formed from the elastomeric material simplifies the "automatic" adjustment of the seal when the coke oven door is closed. The seal also prevents the oven gases from escaping from the oven when the coke oven door is in the closed position In addition, the seals contribute to the thermal insulation (thermal insulation) of the coke oven chamber.

"Fixing means for securing the seal" means a structural element or several interconnected elements configured to at least partially hold and/or position and/or receive the seal pieces. For example, the securing means may comprise a groove for securing the seal, wherein the seal may be frictionally and/or form-fit connected to this groove. More for example, the securing device may include a base segment and a lid segment, which together form a groove for holding the seal. The fixing means may be attached to or arranged on the coke oven door and/or elements of the coke oven door, such as a panel unit. For example, the fixing means may have a force and/or form fit and/or material and/or frictional connection with the coke oven door and/or the panel unit. Alternatively, the fixing device can also be integrated with the coke oven door and/or the panel unit, respectively. More alternatively, other elements, such as insulating elements and/or sealing protection elements, may be arranged between the fixture and the coke oven door or panel unit. The securing device secures and/or positions and/or retains the seal. In addition, the fixing device may at least partially form the seal against coke oven gas and/or high temperature insulation.

The "peripheral area of the coke oven door" refers to the edge and/or the edge area of the coke oven door and/or the panel unit. The perimeter area of the coke oven door may be located on the inside of the coke oven door and/or the panel unit. The inner side of the coke oven door and/or the panel unit is the side facing the coke oven chamber. For example, the perimeter area of the coke oven door may be the area that encircling and/or surrounding fire hydrants. More for example, the peripheral area of the coke oven door and/or the panel unit may be the area where the seals and/or the securing means for securing the seals are located. For example, the positioning of the fixture may be flanged and/or flush with the edge of the panel unit or coke oven door.

"First operating state" refers to the operating state of the seal. For example, if the seal includes or forms an inflatable seal, the first operating state may refer to a state in which the seal is deflated. Likewise, "second operating state" means that the operating state of the seal is different from the first operating state. For example, where the seal includes or forms an inflatable seal, the second operating state may refer to a state in which the seal is inflated with a pressurized medium, and in which the inflatable seal expands accordingly.

"First distance from the sealing surface" refers to the distance, spacing or gap between the sealing surface and the seal.

"Cavity" refers to the volume or void, hollow or empty space that may be formed at least in part when the coke oven door is closed and the seal is in contact with the sealing surface. The cavity can be completely or partially closed. For example, if the seal contains or forms an inflatable seal, when the coke oven door is closed and the inflatable seal is inflated, a cavity may be formed between a portion of the seal and a portion of the panel unit or the coke oven door, resulting in a second operating state . In other words, when the coke oven door is closed and the seal is operating in its second operating state, the cavity is arranged between the seal and the panel unit, part of the seal and part of the panel unit, respectively. In other words, the seal and the panel unit at least partially (define/define, respectively) form a cavity. The cavity can usually be filled with gas, such as air. Thus, heat transfer by conduction, such as through metal, may be reduced or prevented in this area. Thus, the cavity presents thermal insulation to the seal adjacent to it. The thermal load on the seal can thus be significantly reduced. This reduction also allows the use of seals formed from sealing materials, such as silicones, which are not suitable for coke oven doors due to high operating temperatures. Since the inner side of the panel unit borders the cavity, heat within the cavity is transferred from the inner side of the panel unit to the air-cooled outer surface of the panel unit, where it is dissipated to the environment. The result is a continuous flow of heat during coking, which prevents the seal from overheating. Additionally, when the coke oven door is open, flame formation on the seal is reduced or completely suppressed. The closed cavity also inhibits the formation of flames on the seal during opening, since the gas flow, respectively gas movement, within the cavity is also effectively inhibited or reduced. This also helps prevent a flame-forming gas mixture from forming in the area near the seal shortly after opening the coke oven door.

In one embodiment, the fixture is attached to the panel unit. "Connected to a panel unit" can refer to direct or indirect accessories. For example, the fixing means may be arranged on a part of the panel unit so as to be in direct contact with the panel unit. Alternatively, one or more other structural elements, such as a first insulating element and/or a sealing protection element, may be arranged between the fixture and the panel unit such that the fixture is indirectly attached to the panel unit or a portion of the panel unit . This fixing means may be arranged inside the panel unit. The inner side of this panel unit corresponds to the side facing the coke oven chamber. The fixing means may be arranged on the peripheral side or peripheral area of the panel unit. The arrangement of the fixture on the panel unit allows for an enhanced self-adjustment mechanism.

The coke oven door sealing device also includes a first insulating element for the heat insulating seal, wherein the first insulating element is arranged on the fixing device. "Insulating element" refers to a structural element used to isolate, in particular to thermally insulate, its environmental components. For example, the insulating elements, respectively insulating components, may comprise or be formed from mica, silicate minerals and/or phyllosilicate minerals or mixtures thereof. The thermal conductivity of an insulating element may differ from the thermal conductivity of its adjacent elements. For example, insulating elements may have lower thermal conductivity than fixtures. The arrangement of the insulating elements can further reduce heat transfer to the fixture and the seal held by the fixture. The insulating element may, for example, be arranged between the fixture and the panel unit.

In one embodiment, a seal protection element is used to isolate the seal from the coke oven chamber, which is provided on the panel unit. "Sealing protection element" means the structural element of the coke oven door or panel unit which, in the closed state of the coke oven door, forms an isolating and/or insulating barrier for the coke oven chamber. The sealing protection element can, for example, be embodied as a metal flexible plate, strip, bar or spring shield. In the closed state of the coke oven door, one side of the sealing protection element faces the coke oven chamber, respectively delimiting a part of the coke oven chamber, while the end portion of the sealing protection element contacts the coke oven frame and/or the ring parts of the coke oven frame. The sealing protection element can, for example, have a concave, convex, curved, curved or angular profile. The sealing protection element may be an integral part of the panel unit. Alternatively, the sealing protection element can be attached to the panel unit. The seal protection element prevents/avoids/reduces/reduces the contact of the coke oven gas with the seal during the coking process. In addition, the seal protects the heat in the coke oven chamber with thermal insulation/barrier properties.

In one embodiment, the sealing protection element is in contact with the first insulating element. The sealing protection element can, for example, be arranged on the first insulating element. In particular, the sealing protection element can be arranged between the first insulating element and the panel unit of the coke oven door. The arrangement in which the seal protection element contacts/bounds/adjacent the first insulating element provides a particularly tight coke oven door seal design. Alternatively, in another embodiment, the sealing protection element is arranged opposite the first insulating element. The sealing protection element may be arranged inside the panel unit while opposing/facing the first insulating element. The arrangement in which the seal protection element is opposite the first insulating element allows the cavity to be particularly large in size, thus reducing the heat transfer to the seal.

In one embodiment, the coke oven door frame includes a ring member for defining at least a portion of the coke oven chamber. "Ring member" refers to a structural element that extends and/or protrudes from the coke oven door frame or the surface of the coke oven door frame. This ring member may, for example, extend in a vertical or inclined direction from the coke oven door frame or the surface of the coke oven door frame. This ring member can be an integral part of the coke oven door frame or attached to the coke oven door frame. The "integrated" part of the coke oven door frame refers to an arrangement in which the ring member and the frame (part of the ring member and part of the frame, respectively) are made of one piece or one piece. This ring member may be formed of a metallic material. This ring member may have a rectangular, L-shaped, I-shaped, concave, convex, angled, tapered or C-shaped profile. "Profile" may refer to the profile of a cross-sectional profile. The shape of this ring member can be adapted to different temperature and environmental conditions. The shape of this ring member determines the heat transfer to the environment and/or the seal. The arrangement of this ring member allows part of the heat transferred by the coke oven door frame to the ring member to be dissipated to the environment. Consequently, the thermal load transferred to the seal can be significantly reduced. Therefore, the ring member may function like a cooling fin.

In an embodiment, the sealing surface is arranged on at least a portion of the ring member. The ring member may have this sealing surface arranged on one side or part of one side. This sealing surface is configured to be in contact with the seal in the second operating state of the seal. The other side or part of this side of the ring member is cooled by air. The arrangement of the ring members with sealing surfaces allows for a transverse seal, which further simplifies the automatic adjustment and radial tightening of the seal.

In one embodiment, the coke oven door sealing device further includes a second insulating element for the thermal insulation seal, wherein the second insulating element is disposed between the ring member and the coke oven door frame. This second insulating element may contact at least a portion of the ring member and a portion of the coke oven door frame. The second insulating element can be attached to the coke oven door frame, or can be integrated with the coke oven door frame. This second insulating element may be arranged between the ring member and the coke oven door frame. The arrangement of this second insulating element can reduce the heat transfer to the ring member, which in turn can further reduce the heat transfer on the sealing surface.

In one embodiment, the ring member includes a top portion for supporting the panel unit or sealing the protective element when the coke oven door is in the closed state. This top portion may, for example, represent a surface or surface portion configured to support and/or contact the panel unit and/or the coke oven door and/or the end portion of the sealing protection element. This top part may, for example, comprise a particularly smooth surface, allowing the slight movements of the coke oven door to be individually (automatically) adjusted during the coking process.

In one embodiment, the ring member exhibits a tapered profile. The tapered profile of the ring member may be a ring member profile having at least two cross-sections of different widths. In particular, this profile may taper to the top of the ring member. The arrangement of the ring elements with a conical profile allows a particularly material-saving and compact constructional configuration of the coke oven door seal.

In one embodiment, the seal includes a hollow body for holding the medium. Additionally, or alternatively, the seal may represent an annular structure of the sealing surface.

"Hollow body" refers to the tubular or hose-like structure of the seal. For example, the seal may be an inflatable seal. The inflatable sealed hollow body may be filled with a medium (eg gas, water, oil, etc.), which results in expansion of the inflatable seal. Due to the expansion of the gas-filled seal, the gas-filled seal can contact a sealing surface, such as the sealing surface of a coke oven door frame.

"Medium" means a liquid, fluid, gas, solution, emulsion or similar structure or substance. For example, air can be used as the medium. More for example, the medium may be pressurized. In other words, the medium may have a higher pressure than atmospheric pressure. Since the hollow body is filled with medium, the seal can be tightened radially and adjust itself to the sealing surface.

A "ring structure" may be a structure in which the ends are connected to each other. The annular structure of the seal allows the sealing surface to be sealed on the coke oven door. As a result, coke oven gas emissions can be completely prevented or at least largely reduced.

In one embodiment, the fixture comprises a base segment for supporting the seal and a lid segment for delimiting/delimiting the seal, wherein the base segment and the lid segment form Grooves for retaining seals. The seal can be supported/secured/positioned by the groove. The base section and the cover section may be fixedly and/or removably connected to each other, eg by means of at least screws, bolts, pins or similar structural elements. The arrangement of the fixing means comprising the base section and the cover section allows modularization of the structure of the fixing element and thus also allows the fixing means and/or the seal to be reworked.

In one embodiment, the depth of the groove of the fixture is greater than the width of the cavity. Additionally or alternatively, in the first operating state, when the seal is in its first operating state, the depth of the groove of the fixing means is greater than the depth of the seal. In the first operating state of the seal, the groove depth of the fixture may be larger/greater than the depth of the seal. In arrangements where the depth of the groove is greater than the depth of the seal in its first operating state, the groove has two parallel wall sections which are not in contact with the seal but with the surrounding environment. These parts can be air-cooled particularly quickly, thus reducing heat transfer to the seal. Furthermore, the arrangement where the depth of the groove is greater than the depth of the seal allows the seal to slide/retract into the groove when the seal changes from the second operating state to the first operating state. The grooves, which are several times larger than the cavity, can also be cleaned particularly easily by the operator, as industrial cleaning operations (such as high-pressure cleaning operations) are facilitated because the seals can be safely retracted into the grooves. The width of the cavity may be defined by the distance between the surface portion of the ring member and the surface portion of the fixture arranged opposite the surface of the ring member. The exact dimensions of the cavity depend on the design and cleaning surface, and can be readily determined by one skilled in the art.

The invention also relates to a coke oven chamber, including a coke oven door sealing device. A coke oven chamber with a coke oven door seal is less prone to leakage of emissions and/or coke oven gas. In addition, the coke oven door of the coke oven chamber has a coke oven door seal, which can be cleaned and maintained more easily by the operator. Multiple coke oven door seals may be arranged on opposite sides of the coke oven chamber or at different locations. The improvements and embodiments of the coke oven door sealing device described above are also applicable to coke oven chambers.

The invention also relates to a coke oven battery comprising a coke oven door sealing device. The coke oven group has a plurality of coke oven chambers, and each coke oven chamber is provided with one or more coke oven door sealing devices, so that leakage is not easy to occur, and the emission of coke oven gas can be reduced. The improvements and embodiments of the coke oven door sealing device described above are also applicable to coke oven banks.

Further aspects and features of the present invention arise from the description of the appended claims, drawings and examples below.

Figure 1 is a top view of a coke oven door sealing device 1, without the frame shown. FIG. 2 is an enlarged vertical cross-sectional view of the edge region of the coke oven door shown in FIG. 1 along section line A-A. In Fig. 2, the coke oven door 1 is in a closed state. The coke oven door sealing device 1 consists of a coke oven door 10 for fitting into or on a coke oven door frame 20 of a coke oven chamber 31 . The coke oven door 10 includes a panel unit 9 for closing the coke oven chamber 31 . A fixing device 11 with a recess 12 is arranged in the peripheral area of the coke oven door 10 , respectively the panel unit 9 . This fixture consists of a base section 17 and a cover section 16 . The base section 17 and the cover section 16 form a groove 12 for securing (supporting) the seal 13 . The sealing surface 21 is opposite and at a distance from the groove 12 . The seal 13 consists of a gas-filled seal which is installed in the groove 12 . The groove 12 and the seal 13 form a frictional and/or form-fit connection. The seal 13 has a hollow body for holding a medium (not shown), such as a pressurized gas. The seal 13 is made of a resilient material, such as silicone, which is configured to operate at temperatures of approximately 300°C. The seal 13 has an annular structure (not shown) that completely surrounds the peripheral area of the coke oven door 10 .

The hatched surface of seal 13 in Figure 2 shows the gas-filled seal in a first operating state. In this first operating state, the sealing element 13 is spaced by a distance D from the contact surface 21 opposite to which the sealing element 13 is arranged. The dashed depiction of the seal 13 in FIG. 2 shows the gas-filled seal in a second state of operation, wherein the seal 13 is in contact with the contact surface 21 . In this first operating state, a depth G of the groove 12 is greater (greater/larger) than the depth S of the seal 13 . The depth G of the groove 12 of the fixing device 11 is greater than, at least twice, a width C of the cavity 32 . In this case, it must be noted that the depth C of the cavity is also possible, for example, depending on the coke oven door 10 and/or the coke oven door frame 20 and/or the additional further structural elements attached to the coke oven door 10 . Tolerance or be affected by, for example, one or more mounting/dismounting devices (not shown). In addition to this, further dimensional changes may occur during the coking process due to thermal expansion of different structural elements. In other words, the groove depth G, the cavity width C, and the depth S of the seal 13 may vary slightly. For example, the retraction distance G inside the groove may directly depend on the stroke of the sealing element 13 .

The coke oven door frame 20 is provided with a ring member 22 . The ring member 22 is integrated with the coke oven door frame 20 . The ring member 22 extends from the coke oven door frame 20 . The sealing surface 21 is arranged on the side portion of the ring member 22 . The ring member 22 has a tapered profile. The contour of the ring member 22 tapers towards a top portion 29 . The top portion 29 supports the panel unit 9 when the door is in the closed position. The fixing device 11 opposes the seal 13 to the coke oven door frame 20 , respectively, to the sealing surfaces 21 of the ring members 22 of the coke oven door frame 20 .

In the second operating state of the seal 13 , the seal 13 and the panel unit 9 form a cavity 32 . The cavity 32 is also delimited by the first insulating element 14 , the fixing cover segment 16 of the fixing device 11 and the part of the ring member 22 . The first insulating element 14 is arranged between the cover segment 16 and the panel unit 9 , respectively at the edge of the peripheral area of the panel unit 9 . During the transition of the seal 13 from the first operating state to the second operating state, the seal 13 forms a closure of the cavity 32 . The first insulating element 14 may comprise or be formed from mica or a similar material. The first insulating element 14 exhibits thermal isolation/insulation to prevent heat from the coke oven door frame 20 and the coke oven chamber 31 . The first insulating element 14 thus contributes to the thermal isolation/insulation of the seal 13 .

FIG. 3 is a cross-sectional view of an alternative embodiment of a coke oven door sealing device 1 of a coke oven door frame 20 with an additional ring member 22 . In contrast to the embodiment shown in FIG. 2 , the ring member 22 is not integrated with the coke oven door frame 20 . The ring member 22 exhibits an L-shaped profile extending from the surface of the coke oven door frame 20 . The ring member 22 partially defines the coke oven chamber 31 . The fixing device 11 is indirectly attached to the panel unit 9 in the peripheral area of the panel unit 9 . A first insulating element 14 is arranged between the cover section 16 of the fixing device 11 and the surface of the panel unit 9 . A second insulating member 23 is provided between the ring member 22 and a surface portion of the coke oven door frame 20 . The first insulating element 14 exhibits thermal isolation/insulation to prevent heat from the coke oven door frame 20 and the coke oven chamber 31 . Like the first insulating element 14 , the second insulating element 23 also contributes to the thermal isolation/insulation of the seal 13 . The second insulating element 23 may contain or be formed of mica or a similar material. The second insulating element 23 exhibits thermal isolation/insulation to prevent heat from the coke oven door frame 20 and the coke oven chamber 31 .

FIG. 4 is a cross-sectional view of an alternative embodiment of the coke oven door sealing device 1 in which a sealing protection element 30 is provided on the panel unit 9 . The sealing protection element 30 in FIG. 4 is presented as an inclined spring plate/shield connected to the panel unit 9 of the coke oven door 10 . Note that it can also be a smaller mask. The sealing protection element may be integrated with the panel unit 9 (not shown). In the closed state of the coke oven door 10 , the end portion of the sealing protection element 30 is in contact with the top portion 29 of the ring member 22 . A part of the sealing protection member 30 is provided between the panel unit 9 and the first insulating member 14 . In the embodiment shown in FIG. 4 , the ring member 22 is integrated with the coke oven door frame 20 . In the second operating state of the seal 13 , the cavity 32 is formed by a part of the seal protection element 30 , a part of the ring part 22 , a part of the cover segment 16 of the fixing device 11 , a part of the first insulating element 14 and the seal 13 part of to define/define/define. During the transition of the seal 13 from the first operating state to the second operating state, the seal 13 forms the closure of the cavity 32 .

FIG. 5 is a cross-sectional view of an alternative embodiment of the coke oven door sealing device 1 , wherein the sealing protection element 30 is arranged opposite the fixing device 11 . Similar to the embodiment shown in FIG. 4 , the embodiment shown in FIG. 5 presents a ring member 22 integrated with the coke oven door frame 20 . The sealing protection element 30 in FIG. 5 also represents an inclined spring plate/shroud connected to the panel unit 9 of the coke oven door 10 . In the closed state of the coke oven door 10 , the end portion of the sealing protection element 30 is in contact with the top portion 29 of the ring member 22 . This insulating element 14 is arranged between the peripheral portion of the panel unit 9 and the fixing means 11 for fixing the sealing member 13 , including the cover section 16 and the base section 17 . In the second operating state of the seal 13 , the cavity 32 is formed by a part of the sealing protection element 30 , a part of the ring part 22 , a part of the cover segment 16 of the fixing device 11 , a part of the first insulating element 14 , the panel unit 9 and part of the seal 13. The embodiment shown in FIG. 5 allows the heat in the cavity 32 to be dissipated particularly continuously, since the outer sides of the panel units 9 (the sides respectively facing outward, ie the side opposite the inner side of the panel units 9 ) are air-cooled.

FIG. 6 is a cross-sectional view of an alternative embodiment of the coke oven door sealing device 1 , wherein the fixing device 11 is connected to the panel unit 9 by means of screws. Similar to the embodiment shown in FIG. 3 , the embodiment shown in FIG. 6 shows a coke oven door sealing device 1 with a coke oven door frame 20 having a ring member 22 attached. The ring member 22 exhibits an L-shaped profile extending from the surface of the coke oven door frame 20 . The ring member 22 partially partitions the coke oven chamber 31 . A first insulating element 14 is arranged between the cover section 16 of the fixture 11 and the surface of the panel unit 9 . A second insulating member 23 is provided between the ring member 22 and the surface portion of the coke oven door frame 20 . The first insulating element 14 and the second insulating element 23 present thermal isolation/insulation from the heat of the coke oven door frame 20 and the coke oven chamber 31, respectively. In contrast to the embodiment shown in FIG. 3 , the embodiment shown in FIG. 6 presents a frame bar 28 . This frame rod 28 extends vertically from the coke oven door frame 20 . The frame rod 28 is integrated (one piece) with the coke oven door frame 20 . At least a portion of the frame rods 28 are air cooled such that the frame rods enhance heat dissipation from the coke oven door frame. The fixing device 11 is connected to the panel unit 9 in the peripheral area of the panel unit 9 by a first screw 33 . The fixing device 11 includes a vertical through hole 34 through which the screw 33 extends. Similarly, the ring member 22 and the second insulating element 23 are fixed to the coke oven door frame 20 by a second screw 35 .

The examples discussed are embodiments of the present invention. In the context of the embodiments, the elements described in the respective embodiments each represent individual features of the invention which are to be considered independently of each other and which also further develop the invention independently of each other. These features should therefore also be regarded as individual elements of the invention or in combinations other than those shown. Furthermore, the described embodiments may also be supplemented by further features of the invention already described.

Further features and embodiments of the present invention can be inferred to those skilled in the present specification and claims.

1: Coke oven door sealing device 9: Panel unit 10: Coke oven door 11: Fixtures 12: Groove 13: Seals 14: First insulating element 16: Cover segment 17: Base segment 20: Coke oven door frame 21: sealing surface 22: Ring Parts 23: Second insulating element 28: Frame rod 29: Top Section 30: Seal protection element 31: Coke oven room 32: cavity 33: First screw 34: Through hole 35: Second screw A-A: Hatch line C: width D: distance G: depth S: depth

Embodiments of the invention are described by way of example and with reference to the drawings, wherein: 1 is a top view of an embodiment of a coke oven door sealing device; Figure 2 is an enlarged vertical cross-sectional view of the edge region of the coke oven door shown in Figure 1 along section line A-A; Figure 3 is a cross-sectional view of an alternative embodiment of a coke oven door seal with an additional ring member one of the coke oven door frames; 4 is a cross-sectional view of an alternative embodiment of a coke oven door sealing device, wherein the sealing protection element is provided on the panel unit; Figure 5 is a cross-sectional view of an alternative embodiment of a coke oven door sealing device, wherein the sealing protection element is positioned relative to the fixture; and Figure 6 is a cross-sectional view of an alternative embodiment of a coke oven door sealing device in which the securing device is attached to the panel unit by means of screws.

1: Coke oven door sealing device

9: Panel unit

10: Coke oven door

11: Fixtures

12: Groove

13: Seals

14: First insulating element

16: Cover segment

17: Base segment

20: Coke oven door frame

21: sealing surface

22: Ring Parts

29: Top Section

31: Coke oven room

32: cavity

C: width

D: distance

G: depth

S: depth

Claims (14)

A coke oven door sealing device (1) for sealing a coke oven door (10) and a sealing surface (21) of a coke oven door frame (20) of a coke oven chamber (31), the coke oven door sealing device (1) including: The coke oven door (10) has a panel unit (9) for closing the coke oven chamber (31); a fixing device (11) for fixing a sealing element (13) in a peripheral area of the coke oven door (10) opposite the sealing surface (21); The seal (13) is configured to operate in a first operating state or a second operating state; wherein, in the first operating state, the seal (13) is spaced a first distance (D) from the sealing surface (21) opposite the seal (13); and wherein, in the second operating state , the seal (13) is in contact with the sealing surface (21); such that in the second operating state, the seal (13) and the panel unit (9) at least partially form a cavity (32); and Wherein, the coke oven door sealing device (1) further comprises a first insulating element (14) for insulating the sealing element (13), wherein the first insulating element (14) is arranged on the fixing device (11) superior. A coke oven door sealing device (1) as claimed in claim 1, wherein the fixing device (11) is attached to the panel unit (9). The coke oven door sealing device (1) according to any one of the preceding claims, further comprising a sealing protection element (30) for isolating the sealing member (13) and the coke oven chamber (31), and arranged on the panel unit (9). A coke oven door sealing device (1) as claimed in any one of the preceding claims, wherein the sealing protection element (30) is in contact with the first insulating element (14); or Wherein the sealing protection element (30) is arranged opposite to the first insulating element (14). The coke oven door sealing device (1) according to any one of the preceding claims, wherein the coke oven door frame (20) comprises a ring member (22) for defining at least a part of the coke oven chamber (31). A coke oven door sealing device (1) as claimed in claim 5, wherein the sealing surface (21) is arranged on at least a part of the ring member (22). The coke oven door sealing device (1) according to any one of claims 5 to 6, further comprising a second insulating element (23) for insulating the sealing element (13), wherein the second insulating element ( 23) is arranged between the ring member (22) and the coke oven door frame (20). The coke oven door sealing device (1) according to any one of claims 5 to 7, wherein when the coke oven door (10) is in a closed state, the ring member (22) comprises a top portion (29) ) is used to support the panel unit (9) or the sealing protection element (30). The coke oven door sealing device (1) according to any one of claims 5 to 8, wherein the ring member (22) exhibits a conical profile. A coke oven door sealing device (1) as claimed in any one of the preceding claims, wherein the seal (13) comprises a hollow body for holding a medium; and/or Wherein the sealing member (13) presents an annular structure to the sealing surface (21). A coke oven door sealing device (1) as claimed in any one of the preceding claims, wherein the fixing device (11) comprises: a base section (17) for supporting the sealing element (13), and a cover section (11). 16) for separating the seal (13); Wherein the base section (17) and the cover section (16) form a groove (12) for fixing the sealing member (13). The coke oven door sealing device (1) according to claim 11, wherein a depth (G) of the groove (12) of the fixing device (11) is greater than a width (C) of the cavity (32); and/or Wherein, in the first operating state, the depth (G) of the groove (12) of the fixing device (11) is greater than the depth (S) of the sealing element (11). A coke oven chamber, comprising: the coke oven door sealing device (1) according to any one of claims 1 to 12. A coke oven bank, comprising: the coke oven chamber according to claim 13, and the coke oven door sealing device (1) according to any one of claims 1 to 12.

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