Radiant heating element having free end

Abstract

A radiating element (1) for a heating oven (200) includes: - a first end (7); - a second free end (8); - a radiating structure (2) located between the first end (7) and the second end (8); - a conduit (5) for supplying energy to the interior of the radiating structure (2); - a first fastening leg (20) for mechanically connecting the radiating structure (2) to a support (3), the first connecting device (25) including a first part (25a) arranged to be fastened to the support (3) and a second part (25b) fixed to the first leg (20), wherein the first part (25a) and the second part (25b) are mechanically connected through a first interface (25c) so that the first part (25a) and the second part (25b) can be relatively displaced.

Description

Technical Field

[0001] This invention relates to a radiant heating element for heat treatment of products, more particularly metal products. The invention also relates to a method for attaching the radiant heating element to an oven for heat treatment of products, more particularly metal products. Background Technology

[0002] Ovens used for heat treatment of metal products in strip form typically comprise a series of radiant heating tubes arranged in vertical and / or horizontal columns, one above and / or adjacent to each other. Typically, the product to be treated is conveyed vertically and / or horizontally in front of and / or between these radiant heating tubes, from which heat is emitted radiantly.

[0003] Each radiant heating tube includes a heat source, which may be, for example, in the form of a burner having at least one inlet for a combustible product, at least one inlet for an oxidant, and at least one outlet for burning the product, such that, regardless of the presence of a heat recovery system, the burner generates a flame within the radiant element by being supplied with combustible product and oxidant, and then heat is radiated from the flame to the metal product to be processed.

[0004] Radiant heating tubes used to heat a metal product across its entire width and depth are typically elongated elements defined by two ends and supported by each of these ends between two walls of an oven. In practice, the radiant heating tube has a first device for attaching at a first end of the tube to a first wall of the oven, the first wall including a heat source supply section, and a second device for attaching at a second end of the tube.

[0005] A known problem with this type of radiant heating tube is its limited lifespan. In fact, this support pattern associated with high temperatures causes contraction and structural deformation within the radiant heating tube, which exacerbates aging after creep. Indeed, it is commonly observed that the relaxation of contraction is closely correlated with an increase in deformation. This increase causes eccentricity, which in turn leads to an increase in contraction.

[0006] One known solution for limiting structural contraction and deformation in radiant heating tubes is to allow the second attachment to have one or more degrees of freedom at the furnace wall opposite the heat supply section. The advantage of having one or more degrees of freedom for the second attachment is the reduction of certain thermomechanical contractions. This is particularly true for radiant heating tubes described in documents US1001188782 and JP2001330209A.

[0007] In addition, especially since the structural convergence is still very high, the heating tubes must be replaced regularly, so it is desirable to simplify the maintenance of the oven, including the radiant heating tubes.

[0008] Some radiant heating tubes are designed to be attached to the underside of a horizontal wall. This type of radiant tube is described in document JP2005069595A. Summary of the Invention

[0009] One object of the present invention is to provide a radiant heating element for being arranged on a vertical wall, which enables reduced maintenance and is particularly easy to maintain.

[0010] To this end, the inventors have proposed a radiating element for placement on a vertical first wall of an oven and comprising:

[0011] - A first end portion, which is located on the first side of the radiating element;

[0012] - The second end, which is located on the second side of the radiating element, is opposite to the first side;

[0013] - A radiating structure, which is used to generate heat inside the oven and is located between the first end and the second end;

[0014] - A conduit for supplying energy to the interior of the radiating structure, the conduit being located on the first side of the radiating element;

[0015] - A first attachment leg, the first attachment leg being used to mechanically connect the radiating structure to a support located on the first wall, the first leg being located on a first side of the radiating element; and

[0016] - A first connecting device for mechanically connecting the first outrigger to the support portion;

[0017] Its characteristic is that the second end is free; and

[0018] The first connecting device includes:

[0019] - The first part, which is arranged to be stationary relative to the support, and

[0020] - The second part is stationary relative to the first leg, and the first and second parts are mechanically connected by a first interface so that relative displacement can be made between the first and second parts.

[0021] The first connecting device allows for relative displacement between the first leg and the support. This enables the reduction or elimination of convergence caused by deformation of the radiating element (e.g., due to thermal expansion / contraction). The invention allows the radiating structure to be mechanically connected to the support (which itself is located on a vertical wall) only on one side of the first end of the radiating element. Therefore, the invention differs from known systems in which the radiating element is attached to vertical walls facing each other at both ends.

[0022] Because the radiant heating element of the present invention is mechanically connected to the oven only at its end located on the side where the energy supply pipe is located, it can be positioned in the oven much more easily than a radiant heating tube that requires attachment points at both ends. Since, although the service life of the radiant heating element of the present invention is extended, it still needs to be replaced after a certain period, this is of particular concern. Therefore, it is advantageous to ensure good accessibility of the attachment points for such replacement. Furthermore, it is advantageous to perform minimal labor-intensive replacements during assembly and to easily supervise one or more attachment points, while also extending the service life of the radiant element.

[0023] A further advantage of the radiant heating element of the present invention is that it can be safely installed in an oven. In practice, prior art radiant tubes are often blindly positioned, meaning the operator cannot see the receiving portion for accommodating the second attachment member located at the second end of the prior art radiant heating tube. Consequently, the operator cannot be certain that the attachment member of the prior art radiant heating tube is correctly aligned with the receiving portion of the attachment member. This major drawback of prior art radiant heating tubes is eliminated when using the radiant heating element of the present invention, which has a support portion on only one side and a second free end.

[0024] A further advantage of the radiant heating element of the present invention is that, regardless of whether one or more attachments are fixed or have a degree of mobility, the radiant element can be mechanically coupled to the oven in a manner that reduces or even eliminates one or more attachments located in the hot region of the radiant heating element. This is particularly concerning because it is generally observed that the greatest convergence is concentrated at the interface between the components used for mechanical coupling and the radiant structure of the radiant heating element, which leads to accelerated degradation in the hot region when mechanical coupling is performed. For example, high temperatures can cause diffusion adhesion of the components, which can cause the components to move relative to each other. With the present invention, end supports in the hot region are advantageously eliminated.

[0025] Compared to existing radiant heating tubes, another advantage of the radiant heating element of the present invention, which includes a plurality of attachments positioned on either side of the radiant heating tube, is that it provides a longer service life for the radiant heating element by limiting structural convergence typically encountered at one or more attachments, which is related to friction of the attachments, blockage of the attachments after, for example, torsion, and diffusion adhesion of the attachments.

[0026] Radiating elements are typically subjected to three types of physical stress: their own weight (permanent), high temperature and temperature variation, and pressure / vacuum (permanent) and pressure / vacuum variation. The combination of these stresses leads to two types of damage: creep and fatigue. High temperature combined with the permanent operating pressure / vacuum of the radiating element causes creep to occur at very low stress levels. Furthermore, during operation, high temperature combined with varying pressure / vacuum and / or temperature causes fatigue to occur at very low stress levels. Fatigue typically occurs in areas of convergence, such as regions of geometric discontinuity (e.g., discontinuous cross-sectional changes and weld footings).

[0027] Another problem addressed by this invention is to reduce the discrepancy between the actual and estimated lifespan of radiating elements. It can be observed that the actual lifespan of prior art radiating elements typically does not correspond to the estimated lifespan. The actual lifespan is often significantly shorter than the estimated lifespan, which poses a problem when selecting materials for radiating elements. The uncertainty leading to the actual lifespan being significantly shorter than the estimated lifespan may stem from:

[0028] - It is difficult to predict the absolute deformation that a radiating element will undergo through simulation.

[0029] - Relative deformation occurs when the furnace wall deforms. Therefore, the relative walls of the furnace may have different deformations, which are typically used as rear supports in the hot zone of prior art radiant heating tubes, causing convergence;

[0030] - One or more components used to attach / support a radiating element in the hot or part of the hot region of an element.

[0031] - Due to the blind installation of components used to support the radiant elements in the oven, etc.

[0032] The first side of the radiating element is closer to the first wall than the second side. The first end of the radiating element is closer to the first wall than the second end.

[0033] The interface between the first and second parts of the connecting device can be a mechanical contact, for example, where the first and second parts of the connecting device are surfaces that slide against each other at the interface. The interface may also include an assembly of multiple elements forming the connection between the first and second parts, and may include, for example, rollers, balls, joints, etc. The interface may include a sliding surface and an assembly of multiple elements.

[0034] The first part of the connecting device can be the support itself or a part of the support.

[0035] Preferably, the first connecting device is a support device that allows relative displacement between the first leg and the support in one or more directions, for example, relative to the support. For example, this relative displacement is parallel to the first wall. The first connecting device may include a sliding support device and / or a rotating support device, particularly a roller support device or a joint. Sliding and rolling of the rollers enable displacement in two directions. Rolling of the rollers enables displacement in only one direction.

[0036] Free relative displacement is a relative displacement that (under ideal operation) produces very little or no mechanical torque. Preferably, free relative displacement occurs in two directions (e.g., two directions parallel to the first wall), and even more preferably in one direction.

[0037] The energy supply section, such as the burner mounting section, is inserted into the pipe and generates a flame inside the radiant structure. A co-current heat exchanger can also be inserted into the pipe. The energy supply inside the radiant structure can, for example, be in the form of a supply of hot combustion gases generated outside the radiant structure. For example, the energy supply is from an energy source. In another embodiment, the energy source supply section corresponds to a cable channel that allows electrical energy to be supplied to an electric heating device (resistive type) located inside the radiant structure.

[0038] According to a preferred embodiment of the radiating element, the conduit is mechanically connected to the radiating structure in a fixed manner and to the support in a movable manner, for example, via a compensator. For example, the compensator is a component adapted to mechanical displacement. For example, the compensator has the shape of a flexible bellows. Preferably, the compensator enables a seal between the oven air and the external environment. Preferably, the conduit is assembled to the radiating structure; more preferably, the conduit is welded. More preferably, the conduit is straight.

[0039] Preferably, the radiating structure, the first leg, and the conduit are different components that perform different functions in the radiating element.

[0040] The radiant structure of the present invention is, for example, a radiant heating tube. The term radiant heating tube should be understood in a broad sense; the radiant heating tube can be a structure based on a tube (e.g., a double P-shaped tube), a radiant box, etc.

[0041] Preferably, the radiating element is made of an alloy, more preferably of steel, and even more preferably of heat-resistant steel or nickel-based steel. The alloy is preferably a metallic alloy.

[0042] Preferably, the radiating element comprises an alloy radiating structure attached only to one end (and thus having a free end), which is particularly advantageous for extending the service life of existing radiating elements. The radiating element may consist of multiple parts made of different compositions and / or alloy materials. More preferably, the first leg is made of an alloy, such as steel.

[0043] For example, the radiation structure is a metal radiation tube. For example, the radiation structure is a structure based on a metal radiation tube. For example, the radiation structure is a metal radiation box. This invention covers any other materials, such as ceramic materials (e.g., silicon carbide).

[0044] The radiating structure may include at least some of the features of the radiating structure described in document EP3098551.

[0045] A radiating structure is part of a radiating element capable of radiating heat to a product (preferably a strip, and even more preferably a metal strip). Preferably, the conduit is oriented along an axis from a first end to a second end, and preferably, the conduit is connected to the first end. Preferably, a permanent support exists between the first leg and the support via a first connecting device, allowing relative displacement between the first leg and the support.

[0046] The support allows the radiating structure to be attached to the first wall. The support is an anchoring element, for example, an anchoring element on the first wall of an oven. The support is preferably vertical. The support is a separate element from the radiating element. This support allows the radiating structure to be attached to the first wall.

[0047] According to a preferred embodiment, the support is a plug (e.g., an element that enables the closure of an opening in the wall of the oven). Preferably, the support is attached to the wall of the oven to provide a mating point for holding the radiant heating element in position within the oven, while allowing the first leg to move freely relative to the wall. This free relative displacement produces very little or no mechanical torque in the structure of the radiant heating element (under ideal operation) due to thermal deformation of one or more components of the radiant heating element (particularly the radiant structure). The function of the plug-like support can be summarized as follows:

[0048] - Ensure proper support for the radiant heating element;

[0049] - Ensure proper handling of the radiant heating elements;

[0050] - Ensures easy assembly;

[0051] - Ensure a seal between the interior and exterior of the oven at the wall to which the radiant heating element is attached.

[0052] According to another embodiment, the support is the wall of the oven, to which the radiant element of the present invention is mechanically attached to provide support for the radiant heating element. In this embodiment, for example, hook-shaped elements are attached to the wall of the oven.

[0053] According to one embodiment, the radiating element is configured such that the temperature of the first interface is lower than the internal temperature of the oven. In fact, because relative displacement occurs at the first interface, it is particularly important that the temperature of this first interface is lower than the oven temperature to avoid adhesion between the first and second portions of the first connecting device, which would impair relative displacement. This allows the region with the highest convergence to be transferred to the cold region, thereby increasing the mechanical strength of the first interface in which particularly high convergence is found.

[0054] For example, the heat insulator can be arranged to form a heat insulation portion between (i) the first interface and (ii) the radiant structure and / or the interior of the oven. Within the scope of this invention, other means (e.g., cooling systems) for achieving lower temperatures are possible.

[0055] According to an embodiment, the first leg is configured to be supported on the support portion by the first connecting device or to be pulled on the support portion. If the first leg is above the center of mass of the radiating element, it is normally in a pulled state. If the first leg is below the center of mass of the radiating element, it is normally in a supported state. Being in a supported state allows the second part of the first connecting device to contact the first part of the first connecting device under gravity, while being in a pulled state generally requires the second part of the first connecting device to remain stationary relative to the first part. A certain mechanical configuration of the first connecting device may be applicable only to pulling, only to supporting, or applicable to both pulling and supporting.

[0056] According to an embodiment, the first connecting device is arranged such that the first leg and the support portion can be displaced relative to each other parallel to the first wall. This prevents a second portion of the first connecting device from entering or leaving the support portion.

[0057] According to an embodiment, the first interface enables sliding and / or rolling, preferably enabling the second portion to slide and / or roll relative to the first portion. Sliding is particularly noteworthy because it is easy to implement and allows for a high degree of freedom in displacement. Sliding is especially suitable when the outrigger is supported on a support.

[0058] According to one embodiment, the first leg includes a first leg wall in a manner that extends the radial structure and / or forms at least a portion of the encapsulation portion of the radial structure, the first leg wall being located between the radial structure and the first coupling device.

[0059] Preferably, the first leg includes at least one opening, which may be referred to as a first opening. This opening allows for reduced convergence concentration. The opening is preferably located within the wall of the first leg.

[0060] According to an embodiment, the second portion of the first connecting device includes a first leg end plate, which is vertical. If the first portion of the first connecting device includes a roller, the end plate can roll (and possibly slide) on the roller. If the first portion of the first connecting device includes a sliding surface, the end plate can slide on the sliding surface. If the first portion of the first connecting device includes a hook, the end plate may include a hole engaging the hook.

[0061] Preferably, the radiating element includes a second attachment leg for mechanically connecting the radiating structure to the support portion, and a second connecting device for mechanically connecting the second leg to the support portion;

[0062] The second leg is positioned around the pipe or on a side of the pipe different from the first leg;

[0063] The second connecting device includes:

[0064] - The first part, which is arranged to be stationary relative to the support, and

[0065] - The second part is stationary relative to the second leg, and the first and second parts are mechanically connected by a second interface so that relative displacement can be made between the first and second parts.

[0066] Preferably, the first connecting device and the second connecting device are separate. For example, the pipe is positioned between the first connecting device and the second connecting device.

[0067] Preferably, the first leg and the second leg are located between the radial structure and the support; the first leg and the second leg enable the radial structure to be supported on the support and also enable it to deform freely.

[0068] According to this preferred embodiment, the radiating structure is mechanically connected to the oven wall via a first leg and a second leg. The first and second legs are not part of the radiating structure. They serve to reinforce the radiating structure. The first and second legs particularly help ensure the function of attaching the radiating structure to the oven wall via a support (whether the support is in the form of a hook or plug on the wall).

[0069] According to a preferred embodiment, a first leg is mechanically connected to a support in a first connection region, and a second leg is mechanically connected to the support in a second connection region, such that each leg can be displaced relative to the support, thereby causing the deformation associated with thermal and / or mechanical deformation of the radiating element (especially the radiating structure) to result in the smallest possible convergence within the radiating element. Preferably, the second leg is made of an alloy (e.g., steel).

[0070] According to a preferred embodiment, the support includes a second support section for mechanically connecting the second leg and a first support section for mechanically connecting the first leg. Preferably, the second support section and the first support section are adjacently connected or even mechanically connected when attached to the wall of the oven.

[0071] Preferably, the second leg is supported on the support portion by the second connecting device or is pulled on the support portion.

[0072] Preferably, there is a recessed area located between the first leg and the second leg.

[0073] Preferably, for example, the radiating element (particularly the second leg of the radiating element) is arranged such that the temperature of the second interface is lower than the temperature inside the oven by means of an insulator forming a heat insulation portion, the insulator being between the radiating structure and / or the interior of the oven on one side and the second interface on the other side.

[0074] Preferably, the first connection region (the region where the first interface is located) and the second connection region (the region where the second interface is located) are separate. Separation means that the first connection region and the second connection region are not confused. Even more preferably, the first connection region and the second region are located on opposite sides of the energy supply pipeline.

[0075] Preferably, the first and second legs protrude from the radial structure toward the first end and are in a straight line with the radial structure. Preferably, the first and second attachment legs at least partially overlap around the pipe.

[0076] According to an embodiment of the present invention, the first attachment leg and the second attachment leg are adjacent to the radiating structure, preferably extending the radiating structure, or welded to the radiating structure in another preferred manner, or welded to the radiating structure in another more preferred manner, to ensure the structural continuity of the extension of the radiating structure.

[0077] In another embodiment, the second leg is positioned to surround the conduit. Preferably, an insulation layer is positioned between the conduit and the first and / or second leg to limit heat transfer.

[0078] According to a preferred embodiment, the first connecting device includes at least one means for anchoring the second leg to the support. Preferably, the second leg is penetrated by at least one hole or includes a threaded portion for bolting to the support. The invention covers anchoring the second leg to the support using bolts, rivets, welding, or any other attachment means.

[0079] According to another preferred embodiment, the second leg includes a reinforcing component to strengthen the second leg; more preferably, the reinforcing component is attached to the second leg; and even more preferably, the reinforcing component is welded to the second leg. In a particular embodiment, the reinforcing component includes: a base reinforcing member, two side reinforcing members in the form of sidewalls, and an upper reinforcing member in the form of a wall, the reinforcing component being attached to the end plate of the first leg and / or the second leg.

[0080] Preferably, the reinforcing component further includes reinforcing members, more preferably at least two reinforcing members, and even more preferably, one or more reinforcing members are vertical.

[0081] Preferably, the second leg includes at least one opening, which may be referred to as a second opening. This opening allows for reduced convergence concentration. The opening is preferably located in the wall of the second leg.

[0082] Preferably, the second leg includes a second leg wall in a manner that extends the radiating structure and / or forms at least a portion of the encapsulation portion of the radiating structure, the second leg wall being located between the radiating structure and the second connecting device.

[0083] Preferably, the second leg includes a first wall and a second leg wall, each of the first wall and the second leg wall including a second opening.

[0084] Preferably, the second leg includes a second leg end plate forming a second leg surface, which is attached to the second leg wall at a first end of the second leg to mechanically connect the second leg to the support via a second connecting device. The second leg end corresponds to the interface between the second leg and the radial structure.

[0085] Preferably, the radiating element further includes a third leg positioned between the first leg and the second leg.

[0086] Preferably, the radiating element further includes a third connecting device for mechanically connecting the third leg to the support.

[0087] Preferably, the third leg is supported on the support portion by a third connecting device or is pulled on the support portion.

[0088] Preferably, the third connecting device is a support device configured to allow the third leg to move freely relative to the support in one direction. More preferably, the support device is a swivel support device, and even more preferably, a roller support device or a roller bearing device.

[0089] Preferably, the third connecting device is a sliding support device and is configured such that the third leg can freely move relative to the support in one direction.

[0090] Preferably, the support includes a heat insulation layer positioned at least partially around the first leg and / or the second leg and / or the third leg and / or the pipe.

[0091] According to another embodiment, when the support is a plug, a support insulator is positioned on the support to at least partially surround the first leg and / or the second leg and / or the third leg. This insulator is particularly advantageous because it allows for reduced heat loss through the plug to the outside of the oven. When the support is the wall of the oven, the support insulator is also positioned to surround the first leg and / or the second leg.

[0092] Preferably, the radiating structure includes a first curved wall and a second curved wall connected along the first edge and the second edge, such that the radiating structure has a lens-shaped cross-section in cross-section, and more preferably the lens-shaped cross-section has a chord.

[0093] Preferably, the first wall and the second wall are mechanically joined at their two opposite ends to form a first edge and a second edge.

[0094] According to another embodiment, the radial structure includes a single wall folded into a teardrop shape along its cross-section. This teardrop shape is obtained, for example, by partially rolling the wall to obtain a U-shaped wall comprising two opposing ends. The two opposing ends can then be mechanically joined (preferably welded) to form an edge. One edge may have a slight flatness or an overlap between the two opposing ends.

[0095] The present invention and all its embodiments can be applied to various types of radiant tubes, such as: P-type radiant tubes, double P-type radiant tubes, U-type radiant tubes, W-type radiant tubes, I-type radiant tubes, etc.

[0096] According to one proposed embodiment, the radiating element includes a W-shaped radiating structure formed between the pipe and the outlet nozzle.

[0097] The present invention also provides a drying section of an oven, the drying section comprising a vertical first wall of the oven and a first radiating element according to an embodiment of the present invention, wherein a support portion of the first radiating element is attached to or located only on the first wall of the oven, more preferably, the support portion of the first radiating element is attached only to the first wall of the oven. In other words, the support portion is not mechanically connected to a second wall of the oven.

[0098] All embodiments and variations provided for the radiating element according to the invention are adapted to the furnace section according to the invention after necessary modifications.

[0099] In one embodiment, the first leg is positioned below the pipe. Preferably, the first leg is supported on a support. In practice, due to the torque generated by gravity, the lower leg presses against the wall, which simplifies the implementation of the movable connection compared to the upper leg being pulled against the wall.

[0100] Preferably, the oven section also includes another radiating element, the support portion of which is attached to the second wall of the oven.

[0101] The present invention also provides a drying oven comprising a plurality of radiating elements according to the invention or a plurality of drying oven sections according to the invention, the oven having a drying oven width for heat treatment of strip having a strip width.

[0102] All embodiments and variations provided by the radiating element according to the invention and the oven section according to the invention are adapted to the oven according to the invention after necessary modifications.

[0103] Preferably, the radiation structure of the multiple radiating elements roughly occupies the entire width of the oven.

[0104] The inventors also provide a method for attaching a radiating element to a vertical first wall of an oven used for heat treatment of a product, the method comprising the following steps:

[0105] a. Providing a radiating element, the radiating element comprising:

[0106] - A first end portion, which is located on the first side of the radiating element;

[0107] - A second free end, which is located on a second side of the radiating element, opposite to the first side;

[0108] - A radiating structure, which is used to generate heat inside the oven and is located between the first end and the second end;

[0109] - A conduit for supplying energy to the interior of the radiating structure, the conduit being located on the first side of the radiating element;

[0110] - A first attachment leg, which is located on the first side of the radiating element.

[0111] A first connecting device, the first connecting device comprising:

[0112] Part One, and

[0113] • The second part is stationary relative to the first leg, and the first and second parts are adapted to be mechanically connected through a first interface so that relative displacement can be made between the first and second parts;

[0114] b. Arrange the radiating element on the first wall such that:

[0115] • The second end is free;

[0116] • The first attachment leg mechanically connects the radial structure to the support located on the first wall;

[0117] • The first connecting device mechanically connects the first outrigger to the support portion;

[0118] • The first part of the first connecting device is stationary relative to the support; and

[0119] • The second part of the first connecting device is mechanically connected to the first part through the first interface so that the first part and the second part can be relatively displaced.

[0120] Preferably, the radiating element provided in step a further includes a support; and step b includes positioning the support on the first wall.

[0121] Preferably, the radiating element provided in step a further includes a second attachment leg for mechanically connecting the radiating structure to the support portion, and a second connecting device for mechanically connecting the second leg to the support portion.

[0122] The second leg is positioned around the pipe or on a side of the pipe different from the first leg;

[0123] The second connecting device includes:

[0124] - The first part, which is arranged to be stationary relative to the support, and

[0125] - The second part, which is stationary relative to the second leg, is mechanically connected to the first part and the second part through a second interface, allowing relative displacement between the first part and the second part; and step b causes:

[0126] • The second auxiliary leg mechanically connects the radial structure to the support.

[0127] • The second connecting device mechanically connects the second leg to the support portion;

[0128] • The first part of the second connecting device is stationary relative to the support; and

[0129] • The second part of the second connecting device is mechanically connected to the first part through the second interface, so that the first part and the second part of the second connecting device can be relatively displaced.

[0130] The method of the present invention is adapted to all embodiments and variations provided by the radiating element according to the present invention, the drying section according to the present invention, and the drying furnace according to the present invention after making the necessary modifications.

[0131] The product in this invention can be strip, plate, slab; metal or non-metal; magnetic or non-magnetic. Attached Figure Description

[0132] Further features and advantages of the invention will become apparent from the following detailed description, in which reference is made to the accompanying drawings:

[0133] - Figure 1 An embodiment of the present invention is shown;

[0134] - Figure 2 An embodiment of the present invention is shown;

[0135] - Figure 3a , Figure 3b , Figure 3c A preferred embodiment of the present invention is shown;

[0136] - Figure 4a , Figure 4b , Figure 4c A preferred embodiment of the present invention is shown;

[0137] - Figure 5a , Figure 5b A preferred embodiment of the present invention is shown;

[0138] - Figure 6 and Figure 7 A preferred embodiment of the present invention is shown;

[0139] - Figure 8 An embodiment of the oven according to the present invention is shown;

[0140] - Figure 9 A detailed embodiment of the outrigger at the first end is shown;

[0141] - Figure 10 A detailed embodiment of the mechanical connection between the outrigger and the support portion according to the present invention is shown.

[0142] The figures in the accompanying drawings are not drawn to scale. Generally, similar elements or parts are indicated by similar reference numerals in the figures. Even if such reference numerals are shown in the claims, the presence of reference numerals in the figures should not be considered limiting. Detailed Implementation

[0143] Figure 1 An example of an embodiment of the radiating element 1 of the present invention is shown. The radiating element 1 is arranged on a vertical first wall 71 of an oven 200 by means of a support 3, which may be an integral part of the first wall 71 or a part attached to the first wall 71.

[0144] The radiating element 1 includes a radiating structure 2 located between a first end 7 on a first side 501 of the radiating element 1 and a second end 8 on a second side 502 of the radiating element 1, the second side 502 being opposite to the first side 501. The second end 8 is free, and therefore is not directly mechanically connected to the wall of the oven, but is mechanically connected to the first wall 71 of the oven by means of a support 3 and through the radiating structure 2 and a first leg 20 (described below).

[0145] The radiating element 1 includes a conduit 5 connected to the radiating structure 2, enabling the conduit 5 to supply an energy source inside the radiating structure 2. The conduit 5 is typically connected to an energy source that is supplied through the first wall 71. The conduit 5 is located on the first side 501 of the radiating element 1.

[0146] The radiating element 1 includes a first attachment leg 20 for mechanically connecting the radiating structure 2 to the support 3. The first leg 20 is mechanically connected to the support 3 via a first connecting device 25. The first connecting device 25 includes a first portion 25a arranged to be stationary relative to the support 3 and a second portion 25b arranged to be stationary relative to the first leg 20. Thus, when the first leg 20 moves, the second portion 25b moves accordingly, typically due to thermomechanical deformation. The first portion 25a remains stationary as long as the support 3 remains stationary. The second portion 25b remains stationary as long as the first leg 20 remains stationary. The connection between the first portion 25a and the second portion 25b is a first interface 25c, which includes all mechanical contacts between the first portion 25a and the second portion 25b, and includes any movable parts providing those mechanical contacts. The first interface 25c is located in a first connecting region 23 and enables relative displacement between the first leg 20 and the support 3 by allowing relative displacement between the first portion 25a and the second portion 25b of the first connecting device 25.

[0147] For example, the first connecting device 25 is a support device configured to allow the first leg 20 to freely move relative to the support 3. For example, the support device is as follows: Figure 4a , Figure 4b or Figure 4c The roller support device 40 is shown. For example, the support device is as follows: Figure 1 The sliding device shown has a first portion 25a, which is the surface of the support 3; a second portion 25b, which is the end surface of the first leg 20 that slides on the surface of the support 3; and an interface 25c, which is the interface between these surfaces. Figure 1 In the example shown, the first leg 20 rests against the support 3.

[0148] Figure 1 It can also be shown that a heat insulator 73, used in a preferred embodiment of the invention, forms a heat insulation portion between the interior of the radiant structure 2 and the oven 200 on one side and the first interface 25c on the other side. The end of the second portion 25b belonging to the first interface 25c is therefore located in the cold region. Preferably, the support heat insulator 73 is positioned at the first end 7 and abuts against the support 3.

[0149] Figure 2 It can also be shown that the second wall 72 of the oven is vertical and has a wall insulation layer 74 shown in a dotted texture. Figure 2 In the example shown, the first leg 20 is pulled on the support 3. Preferably, the connecting device 25 includes an attachment hole 101, such as one for connecting to an attachment device. Figure 9 (as shown in the figure) such a holding element, which enables relative displacement.

[0150] Figure 3a , Figure 3b , Figure 3c , Figure 4a , Figure 4b and Figure 4c An exemplary embodiment of the invention is shown, wherein the radiating element 1 includes a second attachment leg 10 that mechanically connects the radiating structure 2 to the support 3. A second connecting device 15 mechanically connects the second leg 10 to the support 3. The second leg 10 is positioned around the conduit 5 or on a side of the conduit 5 different from the first leg 20. The second connecting device 15 includes a first portion 15a arranged to be stationary relative to the support 3 and a second portion 15b arranged to be stationary relative to the second leg 10. The first portion 15a and the second portion 15b are mechanically connected through a second interface 15c, preferably allowing relative displacement between the first portion 15a and the second portion 15b.

[0151] Preferably, the second leg 10 is separate from the first leg 20 and is connected to the radial structure 2. A recessed region 9 exists between the first leg 20 and the second leg 10. Preferably, the first leg 20 and the second leg 10 are mechanically connected via the radial structure 2. The first leg 20 and the second leg 10 protrude from the radial structure 2. For example, a pipe 5 is positioned between the first leg 20 and the second attached leg 10.

[0152] Figure 3a , Figure 3b , Figure 3c The second wall 72 of the oven is shown. This second wall is vertical and located opposite the first wall 71 to which the support 3 of the oven is attached. Therefore, the second end 8 of the radiating element 1 is free from the second wall 72 of the oven. A supporting heat insulation layer 73 is also provided at the first end 7 of the radiating element 1 and abuts against the support 3. This supporting heat insulation layer 73 is shown only in some figures, but in the preferred embodiment of the invention, this supporting heat insulation layer is present in all embodiments of the invention.

[0153] Figure 3a Repeatedly shown Figure 1 Some of the features include, and additionally, a second leg 10 positioned around the conduit 5. According to a particularly advantageous embodiment, a conduit insulator is at least partially positioned between the conduit 5 and the second leg 10 to insulate the second leg 10 from heat dissipated by the conduit 5.

[0154] Figure 3b , Figure 3c , Figure 4a , Figure 4b , Figure 4cThe radiating element 1 is shown, wherein the conduit 5 is positioned between the first leg 20 and the second leg 10.

[0155] Figure 3c A compensator 59 attached to the support 3 is also shown, which ensures a mechanical connection between the pipe 5 and the support 3. Preferably, the compensator 59 is isolated from the pipe 5, except for the portion of the compensator 59 that contacts the pipe 5. A burner 58 is shown at the end of the pipe 5. The burner 58 is connected to the end of the pipe 5.

[0156] Figure 3c Also shown is a lower leg end opening, or first opening 52, located on the first leg 20. This opening 52 is located at the lower end of the first leg 20. Figure 5b In the embodiment shown, the first opening 52 is formed, for example, in the first wall 202A and the second wall 202B of the first leg 20. Figure 3c Further shown is an upper leg end opening, or second opening 51, located on the second leg 10. This opening 51 is located at the upper end of the second leg 10. Figure 5b In the illustrated embodiment, the second opening 51 is, for example, formed in the first wall 102A and the second wall 102B of the second leg 10. Additionally, Figure 3c A leg center opening 53 or wall opening 53 is shown in the region of the second leg 10, in the area remote from the end of the second leg 10. Preferably, Figure 5b The first wall 102A and the second wall 102B of the second leg 10 shown each include a wall opening 53, preferably an opening of a generally simple shape. Similar leg center openings 53 may be made in the first leg 20 and / or the third leg 30 (not shown).

[0157] exist Figure 4a In this configuration, the second connecting device 15 is an attachment device 16, which is used to immovably attach the second leg 10 to the support portion 3 at the second connecting region 13. The attachment device 16 is shown as a triangle. The first connecting device 25 is configured to mechanically connect the first leg 20 to the support portion 3 at the first connecting region 23, and allows relative displacement between the first leg 20 and the support portion 3 via the interface 25c between the first portion 25a and the second portion 25b of the connecting device 25. For example, the first connecting device 25 is configured such that the first leg 20 can freely move relative to the support portion 3 along a single first direction 29 and / or parallel to the first wall 71 (possibly perpendicular to...). Figure 4a The support device (the component of the displacement direction). For example, the support device is a roller support device 40 or a sliding support device. The arrow shown around the first connecting device 25 indicates the first vertical direction 29 of the relative displacement of the first connecting device 25.

[0158] exist Figure 4b In the middle, radiating element 1 and Figure 4a The difference in the illustrated embodiment is that the second connecting device 15 includes two connecting devices:

[0159] - A first free-connecting device that enables relative displacement between the first part 15a and the second part 15b of the connecting device. Figure 4b The arrows shown around the connecting device of the second free-connecting device indicate a second direction 19 of relative displacement of the connecting device;

[0160] - A second fixed connection device, which includes an attachment device 16 for attaching the second leg 10 to the support portion 3.

[0161] exist Figure 4c In the middle, the radiating element 1 includes:

[0162] - The second leg 10 is mechanically connected to the support 3 at the second connection area 13 by a second connection device 15, which enables relative displacement between the second leg 10 and the support 3. Figure 4c The arrows shown around the second connecting device 15 indicate a second direction 19 of relative displacement of the second connecting device 15;

[0163] - First leg 20, which is mechanically connected to support 3 at first connection area 23 by first connection device 25, the first connection device 25 enabling relative displacement between first leg 20 and support 3. Figure 4c The arrows shown around the first connecting device 25 indicate a first direction 29 of displacement of the first connecting device 25. For example, in this embodiment, the first connecting device 25 is a support device, more preferably, the connecting device is a roller support device 40 or a sliding support device;

[0164] - A third leg 30, which is mechanically connected to the support 3 (e.g., at the third connecting area 33) via a third connecting device 35. Figure 7 As shown), the third connecting device 35 enables relative displacement between the third leg 30 and the support 3. Figure 4c The arrows shown around the third connecting device 35 indicate the third direction 39 of the relative displacement of the third connecting device 35.

[0165] The third connecting device 35 includes a first portion 35a arranged stationary relative to the support 3 and a second portion 35b stationary relative to the third leg 30. The first portion 35a and the second portion 35b are mechanically connected by a third interface 35c, allowing relative displacement between the first portion 35a and the second portion 35b. Preferably, the third leg 30 is used to be supported on the support 3 by the third connecting device 35 or to be pulled on the support. The radiating element is arranged such that the temperature of the third interface 35c is lower than the internal temperature of the oven 200.

[0166] exist Figure 4c In this configuration, the second connecting device 15 allows the second leg 10 and the support portion 3 to be relatively displaced along a second direction 19, preferably only along this second direction 19. The first connecting device 25 allows the first leg 20 and the support portion 3 to be relatively displaced, for example, along a first direction 29, preferably only along this first direction 29 and parallel to the first wall 71. The third connecting device 35 allows the third leg 30 and the support portion 3 to be relatively displaced along a third direction 39, preferably only along this third direction 39.

[0167] Preferably, the first direction 29 and the second direction 19 are substantially orthogonal to the main direction of the radiating structure 2 from the first end 7 to the second end 8. Preferably, the first direction 29 and the second direction 19 are vertical directions, that is, the first direction and the second direction are substantially parallel to the vertical wall of the oven. Preferably, the first direction 29 and the second direction 19 are parallel; more preferably, the first direction 29 merges with the second direction. Preferably, the third direction 39 is substantially parallel to the main direction of the radiating structure 2 from the first end 7 to the second end 8. Preferably, the third direction 39 is a horizontal direction, that is, the third direction is substantially orthogonal to the vertical wall of the oven. Preferably, the first direction 29 and the second direction 19 are substantially orthogonal to the third direction 39.

[0168] Preferably, Figure 4c The third leg 30 shown includes:

[0169] - The first end of the third leg 30 is mechanically connected to the support 3 via the third connecting device 35;

[0170] - The second end of the third leg 30 is attached to the radial structure 2.

[0171] Preferably, the second end of the third leg 30 includes two attachment segments for mechanical attachment to the radial structure 2, such that a third leg opening 55 exists between the radial structure 2 and the two attachment segments at the second end of the third leg 30. This third leg opening 55 (e.g.) Figure 3cThe advantage of the third leg opening (shown as recessed region 9) is that it allows for reduced convergence at the attachment point of the third leg 30 to the radial structure 2. In fact, the third leg opening 55 allows for the limitation of convergence concentration associated with thermomechanical deformation. The conduit 5 is partially shown in dashed lines to better illustrate the conduit partially covered by the third leg 30; however, this... Figure 4c The pipe 5 on the top is similar to Figures 3a to 4b Pipe 5 is shown in the image.

[0172] Figure 5a and Figure 5b yes Figure 3b A cross-sectional view. Figure 5a The cross-sectional region shown in the cross-section Va is lenticular. The lenticular cross-section is characterized by a first generally curved wall 2A and a second generally curved wall 2B, which are mechanically joined at their two opposite ends to form a first edge 61 and a second edge 62.

[0173] Figure 5b The image shows a cross-sectional area taken at the first leg 10 and the second leg 20. This cross-sectional area corresponds to... Figure 3b A cross-sectional view Vb. The extensions of the first sidewall 2A and the second wall 2B can be closed, for example, by a base reinforcement member 103. The second leg 10 includes components of a reinforcing assembly to ensure good rigidity of the second leg 10, and in particular to prevent torsional deformation, i.e., to prevent deformation in a direction different from that from the direction from the second leg 10 to the first leg 20. Such a reinforcing assembly that enables good rigidity of the second leg 10 is, for example, one or more vertical reinforcement members 108. In another embodiment, the vertical reinforcement member 108 shown here in a direction generally longitudinal to the second leg 10 can be positioned in a direction generally transverse to the second leg 10. Figure 5b In the first leg 20, there are extensions of a first wall 2A and a second wall 2B, which respectively form the first wall 202A and the second wall 202B of the first leg 20. Therefore, the first leg 20 (and correspondingly the second leg 10) can be formed by the first wall 202A (and correspondingly, 102A) and the second wall 202B (and correspondingly, 102B), and optionally has a base reinforcement member 103. Figure 5a and Figure 5b The embodiments, and particularly the embodiments of the radiating structure 2, can be applied to Figure 1 , Figure 2 , Figure 3a , Figure 3b , Figure 3c , Figure 4a , Figure 4b , Figure 4c Examples of implementations.

[0174] Figure 6 A specific embodiment of the radiating element of the present invention is shown. The radiating element 1 includes a radiating structure 2 referred to as a double-P-shape. The double-P-shape radiating structure 2 includes a first straight segment 81, a second straight segment 82, and a third straight segment 83 extending in a generally parallel direction between a first end 7 and a second end 8.

[0175] The first straight section 81 and the second straight section 82 are fluidly connected at the following locations:

[0176] o is connected at the first end 7 by the first bent segment 84;

[0177] o is connected at the second end 8 by the second bent segment 86;

[0178] The first straight section 81 and the third straight section 83 are fluidly connected at the following locations:

[0179] o is connected at the first end 7 by the third curved segment 85;

[0180] o is connected to the fourth curved segment 88 at the second end 8.

[0181] The first leg 20 enables the radial structure 2 to be mechanically connected to the support portion 3 at the first connection region 23. For example, the first leg 20 is connected to the third curved section 85 and / or the third straight section 83.

[0182] The second leg 10 enables the radial structure 2 to be mechanically connected to the support portion 3 at the second connection region 13. For example, the second leg 10 is connected to the second curved section 84 and / or the second straight section 82.

[0183] Figure 7 A specific embodiment of the radiating element of the present invention is shown. The radiating element 1 includes a W-shaped radiating structure 2 located between a conduit 5 and an outlet nozzle 95. The shown W-shaped radiating structure 2 includes a first straight section 91, a second straight section 92, a third straight section 93, and a fourth straight section 94 extending in a generally parallel direction between a first end 7 and a second end 8, such that:

[0184] -The first straight section 91 and the second straight section 92 are fluidly connected via the first elbow 96;

[0185] - The second straight section 92 and the third straight section 93 are fluidly connected via the second elbow 97;

[0186] - The third straight section 93 and the fourth straight section 94 are fluidly connected via the third elbow 98.

[0187] The first straight section 91 is fluidly connected to the pipe 5, and the fourth straight section 94 is fluidly connected to the outlet nozzle 95. A second leg 10 is mechanically connected to the first straight section 91, for example, the second leg is attached to the first straight section. The second leg 10 enables the first straight section 91 to be mechanically connected to the support 3, for example, the second leg 10 enables the first straight section 91 to be attached to the support 3. A first leg 20 enables the fourth straight section 94 to be mechanically connected to the support 3, for example, the first leg 20 enables the fourth straight section 94 to be attached to the support 3.

[0188] Preferably, in this embodiment, the second leg 10 at least partially surrounds the first straight segment 91 and the first leg 20 at least partially surrounds the fourth straight segment 94.

[0189] The second leg 10 is mechanically connected to the support portion 3 at the second connection area 13 via a second connecting device 15. The first leg 20 is mechanically connected to the support portion 3 at the first connection area 23 via a first connecting device 25. Preferably, the second connecting device 15 is an attachment device, and the first connecting device 25 is a mechanical connection device that allows relative displacement between the first leg 20 and the support portion 3. For example, the first connecting device 25 is a roller support device or a sliding support device.

[0190] In such Figure 7 In a preferred embodiment of the radiating element 1 shown, the radiating element further includes a third leg 30, which is mechanically connected to the second elbow 97, for example, the third leg 30 is attached to the second elbow 97. The third leg 30 is mechanically connected to the support 3 at the third connection region 33 by a third connection device 35, allowing relative displacement between the third leg 30 and the support 3. For example, the third connection device 35 is a roller support device or a sliding support device.

[0191] Figure 8 A furnace section 100 according to the invention is shown, comprising two radiating elements 1, 1'. The furnace section 100 includes a first wall 71 and a second wall 72. The furnace section 100 is configured such that a strip 99 can pass between the first wall 71 and the second wall 72. The strip 99 travels generally perpendicular to the first wall 71 and the second wall 72. The first wall 71 and the second wall 72 are spaced apart by a distance representing the furnace width FW. The strip 99 has a bandwidth BW. The radiating elements 1, 1' are positioned such that corresponding radiating structures 2, 2' of the radiating elements can transfer heat to the traveling strip 99. Within the scope of the invention, two consecutive radiating elements may also be attached to the same first wall 71.

[0192] A first radiating element 1 is attached to the first wall 71 of the oven via its support 3, and a second radiating element 1' is attached to the second wall 72 of the oven via its support 3'. A second leg 10 is attached to the support 3. A first leg 20 is mechanically connected to the support 3 so that relative displacement is possible between the first leg 20 and the support 3. A second radiating element 1' is attached to the second wall 72 of the oven via its support 3'. A second leg 10' is attached to the support 3'. A first leg 20' is mechanically connected to the support 3' so that relative displacement is possible between the first leg 20' and the support 3'. A conduit 5 of the first radiating element 1 opens at the first wall 71 of the oven. A conduit 5' of the second radiating element 1' opens at the second wall 72 of the oven.

[0193] about Figure 8 All described embodiments of the radiating element 1 can be applied to the described oven section 100. In particular, those embodiments described with reference to the foregoing drawings, including the third leg 30 or alternatively including the radiating structure 2, the conduit 5, the first leg 20, and the first connecting device 25, can be applied to the described oven section.

[0194] Figure 9 An example of an embodiment of a first leg 20 or a second leg 10 at the first end 7 is shown. If the leg in question is below the pipe 5, the figures are preferably upside down. Figure 9 A cross-sectional view of a leg (which could be a first leg 20 or a second leg 10) is shown, wherein the radial structure 2 extends to form the leg. This embodiment is particularly suitable for legs subjected to tension on a support 3. The first leg 20 (and correspondingly the second leg 10) is connected to the support 3 via a base reinforcement member 203 (and correspondingly, 103). Two side reinforcement members 204 (and correspondingly, 104) and an upper reinforcement member 205 (and correspondingly, 105) are assembled to the base reinforcement member 203 (and correspondingly, 103). The first leg 20 (and correspondingly the second leg 10) is assembled to the base reinforcement member 203 (and correspondingly, 103). In a particular embodiment, the base reinforcement 203 (correspondingly, 103), the two side reinforcements 204 (correspondingly, 104), and the upper reinforcement 205 (correspondingly, 105) include: the base reinforcement 203 (correspondingly, 103), the two side reinforcements 204 (correspondingly, 104) in the form of walls, and the upper reinforcement 205 (correspondingly, 105) in the form of walls. A first leg end plate 209 (correspondingly, a second leg end plate 109) forms a vertical wall that allows the assembly, which includes the base reinforcement 203 (correspondingly, 103), the two side reinforcements 204 (correspondingly, 104), and the upper reinforcement 205 (correspondingly, 105).

[0195] The first leg end plate 209 (and correspondingly the second leg end plate 109) also enables the first leg 20 (and correspondingly the second leg 10) to be mechanically connected to the support 3 via the first connecting device 25 (and correspondingly the second connecting device 15). For example, the first leg end plate 209 (and correspondingly the second leg end plate 109) is bolted to the support 3. Figure 9 Two vertical stiffeners 208 (correspondingly, 108) are also shown, positioned opposite each other at the joints of the two side stiffeners 204 (correspondingly, 104) and the base stiffener 203 (correspondingly, 103). These vertical stiffeners 208 (correspondingly, 108), shown here in a direction transverse to the cutting plane, can also be configured in a plane longitudinally to the cutting plane. Regardless of whether these vertical stiffeners 208 (correspondingly, 108) are transverse or longitudinal to the cutting plane, they enable the assembly of the first leg 20 (correspondingly, the second leg 10) and the support 3 to have better torsional stiffness. Figure 9 An attachment hole 201 (correspondingly, 101) in the end plate 209 (correspondingly, 109) of the first leg 20 (correspondingly, the second leg 10) is shown to enable the first leg 20 (correspondingly, the second leg 10) to be attached to the support 3 by means of bolts, rivets or any other attachment means. Figure 9 Two holes are shown, but only one hole may be used, so any embodiment with at least one hole is within the scope of the invention. According to another embodiment, the first leg 20 (and correspondingly the second leg 10) is hooked onto the support 3 by a chamfer positioned on the support 3, the chamfer forming a hook-like element on which the first leg 20 (and correspondingly the second leg 10) is positioned.

[0196] Therefore, the first leg 20 includes first leg walls 202A, 202B in a manner that extends the radial structure 2 and / or forms at least a portion of the enclosure of the radial structure 2, the first leg walls being located between the radial structure 2 and the first connecting device 25. Preferably, a vertical end plate 209 is attached to the first leg walls 202A, 202B. The same applies to the second leg 10.

[0197] exist Figure 5a , Figure 5b In the case of the radiant heating tube described herein, the radiant structure includes a first leg wall 202A with a first extension to form a first leg 20 and a first leg wall 202B with a second extension to form a leg 20. The same applies to the second leg 10.

[0198] Figure 10An exemplary embodiment of a roller support device 40 is shown, which is used to mechanically connect a first leg 20, or a second leg 10, or a third leg 30 to a support portion 3. Figure 10 The roller support device 40 shown is described in conjunction with the first leg 20. By positioning the roller support device 40 such that it can be displaced in a generally horizontal direction, this roller support device can be used for the second leg 10, or can be readily applied to the third leg 30 and the third leg having a third leg end plate 309. Therefore, for... Figure 10 With necessary modifications, the embodiments can also be applied to the third leg.

[0199] A roller support device 40 is included in the first connecting device 25. The roller support device 40 includes a wheel portion 44 (part of interface 25c) positioned to rotate about a wheel shaft 45 (part of the first portion 25a of the connecting device 25). The wheel shaft 45 is attached to the support portion 3 via a support member 46. In the example shown, the roller support device 40 is positioned in a recess of the support portion 3 such that the wheel portion 44 protrudes from the support portion 3, allowing the first leg 20 to be displaced relative to the support portion 3 without friction. For example, the wheel portion 44 protrudes from the support portion 3 by 0.5 mm to 50 mm, more preferably by less than 20 mm. The roller support device 40 is positioned at the first mechanical connection area 23. The first leg 20 includes a first leg end plate 209, which forms a generally planar surface of the first leg for mechanical contact with the wheel portion 44 to form a line contact portion 27 with the wheel portion 44. The end plate is part of the second part 25b of the connecting device 25.

[0200] according to Figure 4c In the specific embodiment shown, the second portion 25b of the first connecting device 25 (correspondingly, the second connecting device 15, and correspondingly, the third connecting device 35) includes an end plate 209 (correspondingly, 109, 309) that forms a generally planar surface of the first leg (correspondingly, the second leg, and correspondingly, the third leg) for mechanically contacting the wheel portion 44 to form a line contact portion 27 with the wheel portion 44. Regarding Figure 4c The third leg 30 shown has a third leg end plate 309 that forms a third leg surface that is substantially orthogonal to the first wall 71. This requires a roller support that is offset relative to the roller support of the first leg 20 and the second leg 10.

[0201] about Figure 7The third leg 30 shown has an end plate 309 forming the surface of the third leg that is flush with the surfaces of the second leg end plate 109 and the first leg end plate 209. The first leg 20, second leg 10, and third leg 30 are in contact with a support device (a rotating roller support device 40 or a sliding support device) such that the first leg, second leg, and third leg can be described as having a generally vertical translation relative to the support 3. The support is attached to the wall of the oven in a generally vertical direction.

[0202] according to Figure 4c In a preferred variation, the corresponding support devices for the first leg 20, the second leg 10, and the third leg 30 include stop devices (not shown) to prevent excessive displacement of the ends (or end plates) of the legs 10, 20, and 30 relative to the support 3 (for the first leg 20 along the first direction 29, for the second leg 10 along the first direction 19, and for the third leg 30 along the first direction 39). Figure 4c Another preferred variation of the support device includes means (not shown) for guiding the legs 10, 20, 30, such means that the first leg 20 can be translated only in the first direction 29, the second leg 10 only in the second direction 19, or the third leg 30 only in the third direction 39.

[0203] The invention has been described in conjunction with specific embodiments, which are purely illustrative and should not be considered limiting. In general, the invention is not limited to the examples shown and / or described above. The use of the verbs “comprising,” “including,” or any other variations and combinations thereof shall in no way exclude the presence of elements or structures other than those mentioned. The use of the indefinite article “a” or the definite article “the” to introduce an element or structure does not exclude the presence of a plurality of such elements or structures. Reference numerals in the claims do not limit the scope of the claims.

[0204] In summary, the present invention can also be described as follows: A radiating element 1 for heating an oven 200, and the radiating element comprising:

[0205] -First end 7;

[0206] -Second free end 8;

[0207] -Radial structure 2 located between the first end 7 and the second end 8;

[0208] - Pipes 5 for supplying energy to the interior of the radiating structure 2;

[0209] -A first attachment leg 20 for mechanically connecting the radial structure 2 to the support 3 at the first connection area 23;

[0210] - A first connecting device 25 for mechanically connecting the first leg 20 to the support 3 at the first connecting area 23, while the first connecting device enables relative displacement between the first leg 20 and the support 3.

Claims

1. A radiating element (1), said radiating element being arranged on a vertical first wall (71) of an oven (200) and comprising: The first end (7) is located on the first side (501) of the radiating element (1). The second end (8) is located on the second side (502) of the radiating element (1), and the second side (502) is opposite to the first side (501); A radiating structure (2) is provided for heating inside the oven (200) and is located between the first end (7) and the second end (8); Pipe (5), the pipe is used for energy supply inside the radiation structure (2), the pipe (5) is located on the first side (501) of the radiation element (1). A first attachment leg (20) is used to mechanically connect the radiating structure (2) to a support (3) located on the first wall (71), the first attachment leg (20) being located on the first side (501) of the radiating element (1); and A first connecting device (25) is used to mechanically connect the first attached leg (20) to the support (3). Its characteristic is that the second end (8) is free; and The first connecting device (25) includes: The first part (25a) is arranged to be stationary relative to the support (3), and The second part (25b) is stationary relative to the first attached leg (20). The first part (25a) and the second part (25b) are mechanically connected by a first interface (25c) which is located entirely within the oven (200) and allows relative displacement between the first part (25a) and the second part (25b) in one or more directions.

2. The radiating element (1) according to claim 1, wherein the radiating element is arranged such that the temperature of the first interface (25c) is lower than the temperature inside the oven (200).

3. The radiating element (1) according to claim 2, the radiating element comprising a heat insulator (73) arranged to form a heat insulation portion between the interior of one side of the radiating structure (2) and / or the oven (200) and the first interface (25c) on the other side.

4. The radiating element (1) according to any one of claims 1 to 3, characterized in that, The first attached leg (20) is configured to be supported on the support (3) by the first connecting device (25) or to be pulled on the support.

5. The radiating element (1) according to any one of claims 1 to 3, characterized in that, The first connecting device (25) enables the first attached leg (20) and the support (3) to be relatively displaced parallel to the first wall (71).

6. The radiating element (1) according to any one of claims 1 to 3, characterized in that, The first interface (25c) enables the second portion (25b) to slide and / or scroll relative to the first portion (25a).

7. The radiating element (1) according to any one of claims 1 to 3, characterized in that, The first attachment leg (20) includes a first leg wall (202A; 202B) in a manner that extends the radiating structure (2) and / or forms an encapsulation portion of at least a portion of the radiating structure (2), the first leg wall being located between the radiating structure (2) and the first connecting device (25).

8. The radiating element (1) according to any one of claims 1 to 3, characterized in that, The second part (25b) of the first connecting device (25) includes a vertical first leg end plate (209).

9. The radiating element (1) according to any one of claims 1 to 3, characterized in that, The radiating element includes a second attachment leg (10) for mechanically connecting the radiating structure (2) to the support (3), and a second connecting device (15) for mechanically connecting the second attachment leg (10) to the support (3). The second attachment leg (10) is positioned around the pipe (5) or on a side of the pipe (5) different from the first attachment leg (20); The second connecting device (15) includes: The first part (15a), the first part is arranged to be stationary relative to the support (3), and The second part (15b) is stationary relative to the second attached leg (10), and the first part (15a) and the second part (15b) are mechanically connected by a second interface (15c) so that the first part (15a) and the second part (15b) can be relatively displaced.

10. The radiating element (1) according to claim 9, characterized in that, At least one of the first attachment leg (20) and the second attachment leg (10) includes at least one opening (51, 52, 53).

11. The radiating element (1) according to claim 9, characterized in that, The second attached leg (10) includes a second leg wall (102A) in a manner that extends the radial structure (2) and / or forms at least a portion of the enclosure of the radial structure (2); 102B), the second leg wall is located between the radial structure (2) and the second connecting device (15).

12. A drying section (100) of a drying oven (200), the drying section comprising a vertical first wall (71) of the drying oven and a radiating element (1) according to any one of claims 1 to 11, wherein the support (3) of the radiating element (1) is located only on the first wall (71) of the drying oven.

13. The oven drying section (100) according to claim 12, characterized in that, The first attachment leg (20) is positioned below the pipe (5).

14. The oven drying section (100) according to claim 12, characterized in that, The support (3) of the radiating element (1) is attached only to the first wall (71) of the oven.

15. A drying oven (200) comprising a plurality of radiating elements (1) according to any one of claims 1 to 11, or a plurality of drying oven sections (100) according to any one of claims 12 to 14.

16. A method for attaching a radiating element (1) to a vertical first wall (71) of an oven (200) for heat treatment of a product (99), the method comprising the steps of: a. Provide a radiating element (1), said radiating element comprising: The first end (7) is located on the first side (501) of the radiating element (1). The second end (8) is located on the second side (502) of the radiating element (1), and the second side (502) is opposite to the first side (501); A radiating structure (2) is provided for heating inside the oven (200) and is located between the first end (7) and the second end (8); Pipe (5), the pipe is used for energy supply inside the radiation structure (2), the pipe (5) is located on the first side (501) of the radiation element (1). A first attachment leg (20) is located on the first side (501) of the radiating element (1); and A first connecting device (25), the first connecting device comprising: Part 1 (25a), and The second part (25b) is stationary relative to the first attached leg (20), and the first part (25a) and the second part (25b) are adapted to be mechanically connected via a first interface (25c) so that relative displacement can be made between the first part (25a) and the second part (25b); b. Arrange the radiating element (1) on the first wall (71) such that: The second end (8) is free; The first attached leg (20) mechanically connects the radial structure (2) to the support (3) located on the first wall (71); The first connecting device (25) mechanically connects the first attached leg (20) to the support (3); The first portion (25a) of the first connecting device (25) is stationary relative to the support portion (3); and The second part (25b) of the first connecting device (25) is mechanically connected to the first part (25a) through the first interface (25c) so that the first part (25a) and the second part (25b) can be relatively displaced.

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