System and method for cross-linking mineral and / or plant fiber continuous mats

Abstract

The invention relates to a system (SYSR) for cross-linking a continuous felt of mineral and / or plant fibers, comprising a cross-linking oven (14) for said felt, comprising at least one heating box, each heating box being connected to a combustion chamber. The cross-linking system further includes an'injection 'system (SYSI) disposed outside the cross-linking oven and configured to inject hot air into at least one combustion chamber of the heating box such that the injected hot air replaces a given fraction of hot air generated by at least one combustor attached to the at least one combustion chamber.

Description

Technical Field

[0001] The invention belongs to the general field of manufacturing thermal and / or acoustic insulation products. More specifically, the invention relates to a system for crosslinking continuous mats of mineral and / or plant fibers, especially mineral wool, of the glass or rock wool type. Such mats are intended to be cut to form, for example, thermal and / or acoustic insulation panels or rolls. The invention also relates to a crosslinking method implemented by such a crosslinking system. Background Art

[0002] Traditionally, the manufacture of such insulating fiber mats consists primarily of fiberizing and depositing the fibers onto a perforated moving conveyor or transporter. The newly formed fiber mass is pressed onto the conveyor using a suction box arranged below the conveyor, where the fiber mass is deposited. During the fiberizing process, a binder is injected onto the stretched fibers in the form of a solution or suspension in a volatile liquid such as water, which binder has adhesive properties and generally comprises a heat-curable material such as a thermosetting resin.

[0003] The main layer of relatively loose fibers collected on the conveyor is then transferred to a heating device, which in the field in question is generally called a crosslinking oven. Since the conveyors face each other, pressing the fiber mat between them, and the distance separating them is adjustable, a continuous fiber mat passes through the entire length of the oven. This mat therefore has a greater or lesser density, depending on the degree of compression applied by the two conveyors in the oven.

[0004] During its passage through the ovens, the felt is simultaneously dried and subjected to a specific thermal treatment which causes the polymerization (or “curing”) of the thermosetting resin of the binder present on the surface of the fibers.

[0005] The procedure for curing the binder consists in passing heated air through the entire thickness of the felt, in such a way that the binder present throughout the thickness of the felt gradually reaches a temperature above its curing temperature.

[0006] To this end, the crosslinking oven consists of a casing forming a closed chamber in which a series of boxes are arranged. Each box is supplied with hot air by a combustion chamber to which at least one burner is attached and to which a fan supplies air and circulates the hot air generated by the burner.

[0007] Each box thus defines an independent heating zone in which specific heating conditions are set. The boxes are separated by walls having openings for the felt and the upper and lower conveyors. The use of a plurality of boxes thus advantageously allows a gradual increase in the temperature of the felt throughout its passage through the ovens and better control, and prevents the occurrence of hot spots due to local overheating, or alternatively, prevents the presence of zones within the felt where the binder has not been fully polymerized.

[0008] In practice, the operation and use of cross-linking ovens are subject to various constraints. Among these constraints, operational safety is a key factor and constitutes a regulatory framework that is binding on every operator. In particular, there are many risks that need to be controlled, including the risk of heat accumulation inside the oven and the risk of explosion associated with flammable substances (such as volatile organic compounds) generated during the cross-linking operation.

[0009] In addition to these traditional safety constraints, there are now other constraints. The crosslinking ovens used to date consume a lot of energy. The energy consumed comes almost entirely from the gas required for the burner to supply the heating chamber with hot air. The production of insulating fiber mats is therefore a particularly high emission factor for greenhouse gases such as CO2, which is problematic not only in terms of environmental protection but also in terms of controlling production costs (gas prices can fluctuate greatly). Summary of the invention

[0010] The object of the present invention is to remedy some or all of the disadvantages of the prior art, in particular those mentioned above, by proposing a solution which makes it possible to manufacture insulating fiber mats safely while reducing the gas consumption compared to the solutions of the prior art and while maintaining excellent energy efficiency. In particular, the present invention makes it possible to meet current environmental protection requirements by offering the possibility of limiting greenhouse gas emissions during the manufacture of insulating fiber mats.

[0011] To this end, and according to a first aspect, the invention relates to a system for crosslinking a continuous mat of mineral and / or vegetable fibers, comprising an oven for crosslinking said mat, the oven comprising at least one heating box, each connected to a combustion chamber. The crosslinking system also comprises an "injection" system, which is arranged outside the crosslinking oven and is configured to inject hot air into at least one combustion chamber of the heating boxes, such that the injected hot air replaces a given fraction of the hot air generated by at least one burner attached to said at least one combustion chamber.

[0012] The plant fibers are preferably selected from the group consisting of lignocellulosic fibers and cotton fibers. The lignocellulosic fibers are preferably selected from wood fibers, hemp fibers, flax fibers, sisal fibers, cotton fibers, jute fibers, coconut fibers, raffia fibers, abaca fibers, cereal straw or rice straw.

[0013] In this way, the hot air injected into the combustion chamber with the aid of the injection system replaces part of the hot air that would (nominally) be produced by at least one burner in the absence of external energy input (i.e. the hot air produced by the gas circulating in the heating box and used exclusively by at least one burner, or, in other words, the hot air produced by at least one burner before the injection system was put into operation).

[0014] Note that for the purposes of the present invention, the term "fraction" refers to a fraction strictly less than 100%. In other words, the present invention is implemented by ensuring that the burner(s) in each heating box designed to receive hot air from the injection system continue to operate. This arrangement is advantageous because the maintenance of the burner flame avoids any explosion risk associated with the accumulation of combustible gas.

[0015] The choice of the value of the fraction may depend on how the cross-linking system operates. As a non-limiting example, the value of the fraction may be set so that the flow of hot air injected via the injection system replaces (displaces) part of the nominal flow of hot air circulating in the at least one heating box. Of course, the control of the injection system, and therefore not to mention the choice of the value of the fraction, may be carried out according to further considerations, such as, for example, considerations in terms of the energy or power supplied by at least one burner of the at least one heating box (i.e. the purpose is to replace (displace) part of this energy / power due to the hot air injected by the injection system).

[0016] Generally speaking, the operating safety of a cross-linking oven is ensured by the supply of hot air that sweeps through the heating chamber(s).

[0017] Furthermore, by supplying hot air from outside the crosslinking oven, the invention offers the advantageous possibility of limiting gas consumption and therefore ultimately greenhouse gas emissions (for example, hot air produced by "green" electricity, i.e. electricity produced by low CO2-emitting energy sources such as renewable or nuclear energy).

[0018] In particular, the inventors estimate that, thanks to the present invention, the gas demand of a cross-linking oven can be reduced by 50% to 70%, resulting in significant amounts of greenhouse gases not being released into the atmosphere.

[0019] The inventors have also found that this replacement of part of the gas with hot air produced by the injection system has little effect on the energy efficiency normally achieved during felt manufacturing (typically a drop of 3% to 4%, mainly due to heat losses on the walls between the injection system and the crosslinking oven).

[0020] Another advantage of the present invention is that the injection system can be easily installed on an existing enclosure. For example, the injection system can be located on the floor near the crosslinking oven enclosure, or at a high place, such as on a dedicated walkway.

[0021] Furthermore, the external location of the injection system protects it from any contamination (eg particle release) arising from the crosslinking oven, since such contamination could cause blockages that would be fatal to its operation.

[0022] In certain embodiments, the cross-linking system may further include one or more of the following features alone or in any technically feasible combination.

[0023] In a particular embodiment, said fraction is between 2% and 40%, for example between 5% and 30%, more particularly between 5% and 20%, or even between 7% and 20%, or preferably between 5% and 15%, even more preferably between 10% and 15%.

[0024] In a particular embodiment, the injection system comprises a heating device, such as an electric heating device, configured to heat the ambient air to a given temperature.

[0025] In a particular embodiment, the given temperature is between 350°C and 1000°C, for example between 500°C and 1000°C, more particularly between 700°C and 800°C, even more particularly substantially equal to 750°C.

[0026] In a particular embodiment, the heating device comprises at least one battery having a rated power between 100 kW and 900 kW, more particularly between 500 kW and 700 kW, for example substantially equal to 600 kW.

[0027] In a particular embodiment, the injection system is supplied with preheated air.

[0028] In certain embodiments, at least some of the preheated air comes from a glass furnace and / or corresponds to heat recovery air.

[0029] In a particular embodiment, the injection system is connected to a hot air emergency exhaust port located between the injection system and the cross-linking oven.

[0030] In certain embodiments, the injection system is configured to inject hot air from outside the cross-linking oven.

[0031] In a particular embodiment, the injection system comprises a hot air supply line between a hot air source external to the cross-linking oven and the at least one combustion chamber.

[0032] According to a second aspect, the invention relates to a production line for manufacturing a continuous mineral and / or plant fiber mat, comprising a unit for fiberizing a continuous mineral and / or plant fiber mat, a conveyor for transporting the mat and a crosslinking system according to the invention.

[0033] According to a third aspect, the invention relates to a method for crosslinking a continuous mat of mineral and / or plant fibers, said method being implemented by means of a crosslinking system according to the invention.

[0034] According to a fourth aspect, the invention relates to a method for producing a continuous mat of mineral and / or vegetable fibers, said method being implemented by means of a production line according to the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Other features and advantages of the present invention will emerge from the non-limiting description given below, with reference to the accompanying drawings which show exemplary embodiments of the present invention. In the drawings:

[0036] Figure 1 A specific embodiment of a production line for a continuous mineral fiber mat according to the invention is schematically shown in its environment;

[0037] Figure 2 Schematically shows the Figure 1 A specific embodiment of a manufacturing line of the cross-linking system according to the invention. DETAILED DESCRIPTION

[0038] Figure 1 A specific embodiment of a L_FAB manufacturing line according to the invention is schematically depicted in its environment.

[0039] The L_FAB manufacturing line is configured to manufacture continuous mineral fiber mats, more specifically fiber mats based on glass wool, it being understood that the L_FAB line is of any type suitable for producing products based on mineral fibers and possibly plant fibers. Figure 1 The first step of making the felt is described.

[0040] Conventionally, a L_FAB manufacturing line comprises a drawing unit 1 configured to implement an internal centrifugal drawing process known per se. The fiberizing unit 1 comprises a hood ( Figure 1 Each centrifuge 2 includes a drum ( Figure 1 ) and a plate-like component 3, the peripheral wall of the plate-like component 3 is provided with a large number of openings.

[0041] In operation, molten glass is fed from a furnace (not shown) in the form of a line and first collected in a centrifuge drum, escaping through the plate orifices in the form of a large number of rotating filaments. The centrifuge 2 is also surrounded by an annular burner 5, which produces a high-speed and sufficiently high-temperature gas flow at the periphery of the wall of the centrifuge 2 to draw the glass filaments into fibers in the form of a torus 6.

[0042] A heating device 7, such as an inductor(s), is used to keep the glass and the centrifuge 2 at the correct temperature. Figure 1 As shown by the arrow 8, the annular surface 6 is closed by a pressurized air flow. The annular surface 6 thus formed is surrounded by a sizing spray device containing a thermosetting adhesive in an aqueous solution. Figure 1 Only two of the elements 9 are shown.

[0043] This may, for example, consist of a phenolic binder or an alternative binder with a low formaldehyde content, preferably even formaldehyde-free, such binders sometimes being referred to as "green binders", in particular when they are at least partly derived from renewable raw material bases, in particular plant bases, in particular of the type based on hydrogenated or non-hydrogenated sugars.

[0044] The bottom of the fiberizing hood is formed by a fiber receiving device, which includes a conveyor combined with an air-permeable and water-permeable endless belt 10, below which a suction box 11 is arranged for gases from the aforementioned fiberizing process, such as air, smoke and excess aqueous composition. Thus, a glass wool fiber mat 12 intimately mixed with the sizing composition is formed on the conveyor 10. According to the invention, the mat 12 is conveyed to the SYS_R crosslinking system by the conveyor 10.

[0045] Figure 2 Schematically shows the Figure 1 A specific embodiment of the SYS_R cross-linking system of the L_FAB manufacturing line is shown.

[0046] like Figure 2 As shown, the SYS_R cross-linking system comprises a cross-linking oven 14 for cross-linking thermosetting adhesives. The cross-linking oven 14 comprises a series of heating boxes separated from each other by insulating walls.

[0047] More specifically, in the embodiment described here, the number of the heating boxes 21 to 25 is five.

[0048] The use of multiple boxes enables the fiber mat 12 to be gradually heated to a temperature above the curing temperature of the binder present on the fibers of the mat 12. The mechanical properties of the final product depend on perfect temperature control in the various boxes, especially if a green binder is used, as described above.

[0049] However, the fact that five drums are considered does not constitute a limitation of the invention. Generally speaking, there are no limitations in this respect.

[0050] Each box 21 to 25 comprises a central compartment 21_CC to 25_CC forming the casing of said box and surrounded by insulating material.

[0051] The housing of each box 21 to 25 is crossed by two conveyors 18A, 18B for transporting and calibrating the felt 12. These conveyors 18A, 18B are driven in rotation, for example, by motors placed on the ground (not shown in the figures) and are formed in a known manner by a series of trays consisting of grids hinged together and perforated for ventilation.

[0052] The conveyors 18A, 18B generally compress the felt 12 to a desired thickness while ensuring the passage of hot air which promotes rapid setting of the adhesive.

[0053] For example, for rolled panels this is usually between 10 and 450 mm, the density of the glass wool layer being for example between 5 and 150 kg / m3. For example, a low density product with a density varying between 5 and 20 kg / m3 and a high density product with a density varying between 20 and 150 kg / m3 are distinguished.

[0054] The mineral wool felt 12 sprayed with adhesive first enters an inlet airlock 17A equipped with a fume extraction hood 19A, which is connected to a dedicated fume treatment circuit (not shown). In this first inlet airlock 17A, the hot air introduced into the felt 12 first evaporates the residual water present in the fiber felt 12.

[0055] Additional fumes generated in boxes 21 to 25 are typically exhausted through hood 19B into outlet airlock 17B.

[0056] It is important to note that considering the hoods 19A and 19B arranged at the inlet and outlet of the SYS_R crosslinking system is only one variant embodiment of the invention. Any other variant known to a person skilled in the art can be envisaged, such as a variant of arranging the hood substantially in the center of the crosslinking oven 14.

[0057] Usually, if Figure 2 As shown, each heating box 21 to 25 is connected to (i.e. fluidly connected to) a combustion chamber 31 to 35. Each combustion chamber 31 to 35 supplies hot air to the associated heating box 21 to 25, which is heated by a burner ( Figure 2 (not shown) (it can be understood that the burner body is located outside the combustion chamber) and is passed through a fan ( Figure 2 (not shown) cycle.

[0058] It should be noted that it is assumed here that each combustion chamber 31 to 35 is equipped with a single burner. Of course, these provisions are by no means limiting to the present invention, because each combustion chamber 31 to 35 can be equipped with one or more burners, which is well known to those skilled in the art.

[0059] Each burner is supplied with gas and combustion air by a gas line 26 in order to produce hot air intended for heating boxes 21 to 25 connected to combustion chambers 31 to 35 with which said burner cooperates. This gas supply is Figure 2 Indicated by arrow F1.

[0060] As a non-limiting example, the combustion chambers 31 to 35 are set at a temperature between 200° C. and 250° C. (or even up to 300° C.), for example equal to 210° C., 215° C., 225° C., etc.

[0061] In reference Figure 2 In the described embodiment, each heating box 21 to 25 has a hot air recirculation circuit in fluid communication with the combustion chamber 31 to 35. For example, it is envisaged that this recirculation circuit is combined with at least one radial turbine suitable for sucking in hot air and / or an additional heating device located in the housing 31 to 35 of the heating box 21 to 25. For example, such an embodiment is described in detail in document WO2016203170. Note that in Figure 2 Only a portion of the recirculation loop is shown in the form of a recirculation line 40 .

[0062] Although it is assumed here that the hot air circulation is achieved through a recirculation loop, it is important to note that this is only a variant embodiment of the present invention. However, this does not exclude the possibility of other embodiments, such as embodiments in which hot air is introduced into the heating boxes 21 to 25 from below (or above) and discharged from above (or below), and the hot air circulation in the heating boxes 21 to 25 is achieved through an inlet and outlet mask system. This embodiment is also described in the aforementioned document WO2016203170.

[0063] Typically, the crosslinking oven 14 includes an outer insulating jacket 50 surrounding all of the chambers 21 to 25 (for clarity of illustration, only the outer insulating jacket 50 is shown). Figure 1 In most cases, the outer insulating shell 50 itself surrounds the first metal cover (not shown in the figure) to ensure the sealing of the entire device so that the polluted gas can only be discharged from the device through the covers 19B and 19A.

[0064] According to the invention, the SYS_R cross-linking system comprises, in addition to a cross-linking oven 14 , a so-called “injection” system SYS_I arranged outside said oven 14 .

[0065] “Arranged outside the oven 14 ” means that the injection system SYS_I is located outside the housing 50 of the oven 14 .

[0066] Basically, there is no limitation on the location of the system SYS_I as long as it is located outside the oven 14. For example, the system SYS_I may be located on the floor near the enclosure of the oven 14, or located at a high place, such as on a dedicated walkway.

[0067] The injection system SYS_I is configured to inject hot air into at least one combustion chamber 31 to 35 (and therefore not to mention into at least one heating box 21 to 25) so that the injected hot air replaces a given fraction of the hot air produced by a burner attached to (cooperating with) said at least one combustion chamber 31 to 35.

[0068] In other words, the hot air injected into the combustion chambers 31 to 35 by the system SYS_I replaces part of the hot air nominally produced by the burners (that is, "nominal" here refers to the situation where the hot air circulating in the heating boxes 21 to 25 is produced exclusively by the gas used by the burners).

[0069] More specifically, in the embodiment described here, the fractional value is set so that the hot air flow rate injected via the injection system SYS_I replaces (substitutes) a given part of the rated hot air circulation flow rate within the at least one heating box 31 to 35.

[0070] Note that for the purposes of the present invention, the term "fraction" refers to a fraction strictly less than 100%. In other words, the invention is implemented by ensuring that the burner of each heating box 21 to 25 designed to receive hot air from the system SYS_I continues to operate. This arrangement is advantageous because the maintenance of the burner flame avoids any explosion risk associated with the accumulation of combustible gas.

[0071] The hot air of the SYS_I injection system can, for example, be injected so that the fraction is between 2% and 40%, according to a more specific example between 5% and 30%, more specifically between 5% and 20%, or even between 7% and 20%, or preferably between 5% and 15%, even more preferably between 10% and 15%.

[0072] The injection system SYS_I is configured to inject hot air from outside the oven 14 .

[0073] In other words, the source of hot air is external to oven 14 .

[0074] The injected hot air is separated from the gases recirculated by the recirculation circuits of the combustion chambers 31 to 35 .

[0075] exist Figure 2 In the embodiment shown, the injection system SYS_I is configured to inject hot air into the recirculation circuit of each of the combustion chambers 31 to 35, more specifically at the inlet of said combustion chambers 31 to 35. This injection of hot air is Figure 2 Indicated by arrow F2.

[0076] The fact that hot air can be injected at the inlet into each combustion chamber 31 to 35 at the level of the recirculation circuit does not mean that this is permanently the case. Figure 2In the illustrated embodiment, the injection system SYS_I may include a balancing valve 60 arranged between a hot air supply line 70 of the system SYS_I and the combustion chambers. Each balancing valve 60 is controllable so as to allow, for example, hot air to be supplied to a given combustion chamber 31 to 35 within a given period of time. One or more balancing valves 60 may be automatically controlled (i.e. programmed).

[0077] An inlet of the hot air supply line 70 is in fluid communication with the exterior of the oven 14 .

[0078] The hot air supply duct 70 is configured to supply hot air from the outside of the oven 14 .

[0079] Of course, embodiments may also be envisaged in which one or more combustion chambers 31 to 35 are not connected to the duct 70 , so that they cannot be supplied with hot air from the system SYS_I.

[0080] exist Figure 2 In the embodiment shown, in order to generate the hot air intended to be injected to replace a given fraction of the hot air generated by the burner, the injection system SYS_I comprises an electric heating device 80 configured to heat the ambient air to a given temperature.

[0081] As a non-limiting example, said given temperature is between 350°C and 1000°C, for example between 500°C and 1000°C, more particularly between 700°C and 800°C, even more particularly substantially equal to 750°C.

[0082] It should be noted here that the temperatures envisaged are much higher than the set temperatures of the combustion chambers cited above as examples, so that taking into account the example of injection fractions also cited above, the hot air injection performed by the system SYS_I can be regarded as a low volume thermal “boost” delivered to the combustion chambers 31 to 35.

[0083] The electric heating device 80 may, for example, comprise at least one battery having a rated power between 100 kW and 900 kW, more specifically between 500 kW and 700 kW, for example substantially equal to 600 kW, said at least one battery making it possible to supply, for example, one or more resistors (not shown in the figure) capable of heating the ambient air to a desired temperature.

[0084] In a more specific example, the number of cells is equal to the number of heating chambers in oven 14 .

[0085] For a person skilled in the art, this value of electric power is not limiting to the invention. Likewise, the number of cells used is not limiting to the invention, this number depending in particular on the envisaged temperature of the hot air injected, but also on the volume / fraction of hot air to be considered, this last aspect being related to the number of heating boxes intended to be connected to the SYS_I injection system through their respective combustion chambers.

[0086] Of course, in order to ensure that the hot air generated by the electric heating device 80 is delivered to the combustion chambers 31 to 35 , the injection system SYS_I further comprises an air circulation device 90 .

[0087] For example, and if Figure 2 As shown in a non-limiting manner in FIG. 8 , the air circulation device 90 includes a fan 90 configured to circulate air in the hot air supply duct 70 .

[0088] It should be noted that the electric heating device 80 for producing hot air is considered to be only one embodiment variant of the present invention. In this respect, other variants for obtaining hot air can still be envisaged, possibly in combination with the use of the electric heating device 80.

[0089] For example, it is possible to consider supplying preheated air to the SYS_I injection system. At least some of the air preheated in this way can, for example, come from a furnace producing molten glass for the fiberizing unit 1 (e.g., hot air from flue gases produced by an air-gas furnace, an oxygen furnace, etc.) and / or can correspond to recycled hot air (e.g., air from one or more compressors and / or one or more exchangers arranged outside the oven 14, etc.). In general, any preheated air originating from waste energy can be considered.

[0090] In the embodiments described herein, Figure 2 As shown, the SYS_I injection system is also connected to an emergency hot air exhaust port 100 (also called an "emergency chimney") located between the system SYS_I and the crosslinking oven 14. More specifically, as Figure 2 As shown, the connection between the system SYS_I and the emergency exhaust port 100 is made via an exhaust line 110 equipped with a balancing valve 120. This configuration is optional and has the advantage, in particular (but not exclusively), of avoiding any heat accumulation detrimental to the operation of the SYS_C cross-linking system when preheated air is supplied to the system SYS_I.

[0091] It should be noted that the present invention does not only relate to the SYS_C cross-linking system and the L_FAB manufacturing line. The present invention also covers a method for cross-linking a felt 12 using the SYS_C cross-linking system. The cross-linking method comprises a step of heating the felt 12 in each of the heating boxes 21 to 25, it being understood that all or part of these heating steps (depending on whether all or part of the heating boxes 21 to 25 are connected to the system SYS_I) are performed by supplying hot air from the system SYS_I.

[0092] Finally, the invention also covers a method for manufacturing a felt 12 implemented by a L_FAB manufacturing line. This manufacturing method comprises in particular the method already described above with reference to Figure 1 The first manufacturing step is described, as well as the steps performed as part of the cross-linking method described above.

Claims

1. A crosslinking system (SYS_R) for continuous felts of mineral and / or vegetable fibers, comprising a crosslinking oven (14) for said felt, said crosslinking oven comprising at least one heating box, each of which is connected to a combustion chamber, said crosslinking system being characterized in that it comprises a so-called "injection" system (SYS_I) arranged outside said crosslinking oven and configured to inject hot air into at least one combustion chamber of the heating boxes, such that said injected hot air replaces a given fraction of the hot air generated by at least one burner attached to said at least one combustion chamber.

2. The crosslinking system (SYS_R) according to claim 1, wherein: Said fraction is between 2% and 40%, for example between 5% and 30%, more particularly between 5% and 20%, or even between 7% and 20%, or preferably between 5% and 15%, even more preferably between 10% and 15%.

3. The crosslinking system (SYS_R) according to any one of claims 1 to 2, wherein: The injection system (SYS_I) comprises a heating device, such as an electric heating device (80), which is configured to heat the ambient air to a given temperature.

4. The crosslinking system (SYS_R) according to claim 3, wherein: The given temperature is between 350°C and 1000°C, for example between 500°C and 1000°C, more particularly between 700°C and 800°C, still more particularly substantially equal to 750°C.

5. The crosslinking system (SYS_R) according to any one of claims 3 to 4, wherein: The heating device comprises at least one battery having a power between 100 kW and 900 kW, more particularly between 500 kW and 700 kW, for example substantially equal to 600 kW.

6. The crosslinking system (SYS_R) according to any one of claims 1 to 5, wherein: The injection system is supplied with preheated air.

7. The crosslinking system (SYS_R) according to claim 6, wherein: At least part of the preheated air comes from a glass melting furnace and / or corresponds to heat recovery air.

8. The crosslinking system (SYS_R) according to any one of claims 1 to 7, wherein The injection system is connected to a hot air emergency exhaust port (100) located between the injection system (SYS_I) and the cross-linking oven (14).

9. The crosslinking system (SYS_R) according to any one of claims 1 to 8, wherein: The injection system (SYS_I) is configured to inject hot air from outside the cross-linking oven (14).

10. The crosslinking system (SYS_R) according to any one of claims 1 to 9, wherein The injection system (SYS_I) comprises a hot air supply line (70) arranged between a hot air source arranged outside the crosslinking oven (14) and the at least one combustion chamber.

11. A production line (L_FAB) for the manufacture of a continuous mat of mineral and / or plant fibers, comprising a fiberizing unit (1) for a continuous mat of mineral and / or plant fibers, a conveyor for transporting the mat and a crosslinking system (SYS_R) according to any one of claims 1 to 10.

12. A method for crosslinking a continuous mat of mineral and / or plant fibers, said method being performed by means of a crosslinking system (SYS_R) according to any one of claims 1 to 10.

13. A method for producing a continuous mat of mineral and / or plant fibers, said method being implemented by means of a production line (L_FAB) according to claim 11.

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