Infrared heater and drying equipment

Abstract

The utility model discloses an infrared heater and drying equipment, including infrared board, shell and blowing piece, infrared board is used for connecting power supply, shell cover is provided on infrared board to form the heat exchange chamber between infrared board and shell inner wall, blowing piece is provided in the heat exchange chamber, and the infrared board is used for connecting power supply. An air flow channel is formed in the air blowing part, an air inlet and an air outlet are formed in the outer surface of the air blowing part, the air inlet and the air outlet are both communicated with the air flow channel, and the air inlet is used for being connected with an air supply device so that air can be introduced into the air flow channel through the air supply device; and the air outlet is used for blowing air into the heat exchange cavity so as to exchange heat with the infrared plate. According to the infrared heater provided by the embodiment of the utility model, the infrared plate can be quickly cooled or heated, the baking efficiency of a target object is improved, and the target object is prevented from being degenerated, scrapped and broken due to excessive baking.

Description

TECHNICAL FIELD

[0001] The utility model relates to drying processing technical field especially, relates to an infrared heater and drying equipment. BACKGROUND

[0002] Infrared heating has the characteristics of fast heating speed, good directivity and excellent energy saving effect, and has become an important heating method. The existing infrared heating is mainly provided by an infrared electric heating element, that is, the infrared electric heating element is powered to a certain temperature, and the corresponding wavelength of infrared rays can be excited.

[0003] The traditional infrared electric heating element is mainly in the form of an infrared lamp tube, which is generally a resistance heating wire packaged in a quartz tube. After being powered, it is heated to 500 DEG C to a red-hot state, and releases infrared rays. The biggest disadvantage of the infrared lamp tube is that the temperature is too high, and the infrared energy is not uniform, which is not suitable for large-area coiled materials, sheets and online, roll-to-roll baking drying with high process requirements.

[0004] Compared with the traditional infrared lamp tube scheme, the infrared plate has better temperature uniformity and gradually becomes an important solution in the field of infrared heating technology. The infrared plate is generally formed by coating or packaging a planar resistance layer in a high-temperature-resistant insulating material substrate such as microcrystalline glass or ceramic. After being powered, the planar resistance layer is heated and converts electrical energy into infrared rays.

[0005] However, the substrate of the infrared plate has a large heat capacity, resulting in a large thermal inertia of the infrared plate and a slow temperature change. Specifically, during the heating process, the heat absorption of the substrate will slow down the heating speed of the entire infrared plate. During the cooling process, the substrate temperature drops slowly, which in turn slows down the cooling speed of the entire infrared plate. This not only reduces the working efficiency, but also easily causes damage to the heated object. SUMMARY

[0006] The utility model discloses an infrared heater and drying equipment, and aims at solving the problem of slow temperature change speed of the existing infrared plate during use.

[0007] In order to solve the above problems, on the one hand, the utility model discloses an infrared heater, which comprises an infrared plate, a shell and a blowing piece.

[0008] The infrared plate is used to connect the power supply.

[0009] The shell is covered on the infrared plate to form a heat exchange cavity between the infrared plate and the inner wall of the shell.

[0010] The blowing piece is arranged in the heat exchange cavity.

[0011] The air blowing member is provided with an air flow channel, and the outer surface of the air blowing member is provided with an air inlet and an air outlet, both of which are communicated with the air flow channel;

[0012] The air inlet is used to connect a gas supply device, so as to supply air into the air flow channel through the gas supply device;

[0013] The air outlet is used to blow air into the heat exchange cavity, so as to exchange heat with the infrared plate.

[0014] Optionally, the air blowing member is provided with an air outlet hole;

[0015] The air outlet hole penetrates the inner surface of the air blowing member and the outer surface of the air blowing member, and forms the air outlet on the outer surface of the air blowing member.

[0016] Optionally, the air blowing member is provided with a plurality of air outlet holes, and each air outlet hole constitutes at least one hole group.

[0017] Each hole group has a plurality of air outlet holes, and the plurality of air outlet holes in each hole group are arranged at intervals along a first direction.

[0018] Optionally, the air outlet hole is a long slot hole, and the long slot hole extends along the first direction.

[0019] Optionally, the air blowing member is a gas pipe; and / or,

[0020] The air flow channel extends along the first direction and penetrates one end of the air blowing member, so as to form the air inlet at one end of the air blowing member; and / or,

[0021] The air blowing member is provided with an air inlet hole, and the air inlet hole penetrates the inner surface of the air blowing member and the outer surface of the air blowing member, and forms the air inlet on the outer surface of the air blowing member.

[0022] Optionally, the infrared plate has a first surface and a second surface arranged opposite to each other;

[0023] The first surface is used to emit infrared rays;

[0024] The second surface faces the heat exchange cavity and is arranged at intervals with the air blowing member;

[0025] The air outlet faces the second surface.

[0026] Optionally, the shell has an exhaust hole, and the exhaust hole is used to communicate the heat exchange cavity with an external space.

[0027] Optionally, the shell is detachably connected with the infrared plate; and / or,

[0028] The blowing member is detachably connected with the shell; and / or,

[0029] The blowing member is provided with a plurality of blowing members, each of which is connected with the shell and is arranged at intervals.

[0030] In another aspect, the utility model provides a kind of drying equipment, including gas supply device and the infrared heater of the described;

[0031] The gas supply device is connected with the blowing member to blow gas to the infrared plate through the blowing member.

[0032] Optionally, the drying equipment further includes a gas supply pipe, the gas supply device is located outside the shell, one end of the gas supply pipe is connected with the gas outlet of the gas supply device, the other end of the gas supply pipe is connected with the air inlet, and the gas supply device supplies gas into the airflow passage through the gas supply pipe; and / or,

[0033] The drying equipment further includes a control device, and the control device is in communication connection with the gas supply device.

[0034] The infrared heater provided by the embodiment of the utility model can pass hot gas into the blowing member (i.e. into the airflow passage) from the air inlet when the infrared plate needs to be heated, the hot gas enters the heat exchange cavity through the gas outlet, the infrared plate exchanges heat with the hot gas in the heat exchange cavity, so as to heat the infrared plate by the hot gas and accelerate the heating of the infrared plate. When the infrared plate needs to be cooled, cold gas can be passed into the blowing member from the air inlet, the hot gas is blown into the heat exchange cavity through the gas outlet, the infrared plate exchanges heat with the cold gas in the heat exchange cavity, so as to cool the infrared plate by the cold gas and quickly cool the infrared plate. The infrared heater provided by the embodiment of the utility model can quickly cool or heat the infrared plate, improves the baking efficiency of the target object, and avoids denaturation, scrapping and fracture of the target object due to excessive baking. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the description of the embodiment of the utility model. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0036] Figure 1 is the structure schematic view of the drying equipment provided in an embodiment of the utility model;

[0037] Figure 2 is the structure schematic view of the infrared heater provided in other embodiments of the utility model;

[0038] Figure 3It is the structure schematic view of the infrared heater provided by other embodiments of the utility model.

[0039] Figure 4 It is the structure schematic view of the air blowing piece in the infrared heater provided by other embodiments of the utility model.

[0040] The description of the drawings: 1, infrared plate;11, first surface;12, second surface;2, shell;3, air blowing piece;31, air inlet;32, air outlet;33, air outlet hole;4, heat exchange cavity;5, air flow channel;6, air supply device;7, air supply pipe;8, control device;9, control signal line. Specific implementation

[0041] In order to make the technical problem, technical scheme and beneficial effect solved by the utility model more clearly, the following is further detailed in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0042] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0043] As Figures 1 to 4 As shown in the utility model embodiment, an infrared heater is provided, which comprises an infrared plate 1, a shell 2 and an air blowing piece 3. The infrared plate 1 is used to connect the power supply, when the power supply supplies power to the infrared plate 1, the infrared plate 1 can heat, so that the infrared plate 1 can emit infrared rays. The shell 2 is covered on the infrared plate 1, so as to form a heat exchange cavity 4 between the infrared plate 1 and the inner wall of the shell 2. The air blowing piece 3 is arranged in the heat exchange cavity 4, the air blowing piece 3 is provided with an air flow channel 5, the outer surface of the air blowing piece 3 is provided with an air inlet 31 and an air outlet 32, the air inlet 31 and the air outlet 32 are communicated with the air flow channel 5. The air inlet 31 is used to connect the air supply device 6, so as to supply air to the air flow channel 5 through the air supply device 6. The air outlet 32 is used to blow air into the heat exchange cavity 4, so as to exchange heat with the infrared plate 1.

[0044] Specifically, the blowing member 3 is located between the infrared plate 1 and the inner wall of the shell 2, the blowing member 3 is connected with the shell 2, and the infrared plate 1 is arranged in a spaced manner with the blowing member 3. When the infrared plate 1 needs to be heated, hot air can be introduced into the blowing member 3 (i.e. the air flow channel 5) from the air inlet 31, the hot air enters the heat exchange cavity 4 through the air outlet 32, and the infrared plate 1 exchanges heat with the hot air in the heat exchange cavity 4, so as to heat the infrared plate 1 by the hot air, and accelerate the heating of the infrared plate 1. When the infrared plate 1 needs to be cooled, cold air can be introduced into the blowing member 3 from the air inlet 31, the cold air is blown into the heat exchange cavity 4 through the air outlet 32, and the infrared plate 1 exchanges heat with the cold air in the heat exchange cavity 4, so as to cool the infrared plate 1 by the cold air, and enable the infrared plate 1 to be quickly cooled.

[0045] In the prior art, the time taken by the infrared plate 1 to reduce its temperature to a suitable temperature after completing the heating of the target object is generally greater than 1 min. For the target object being a material (such as a diaphragm, a tape, etc.) which is sensitive to temperature, if the infrared plate 1 cannot be quickly cooled to a suitable temperature after being powered off, the temperature of the infrared plate 1 will soon cause the target object to be over-heated, and thus damage the target object. However, the present embodiment can quickly cool the infrared plate 1 after the infrared plate 1 completes the heating of the target object, thereby avoiding the above problems.

[0046] In an embodiment, the infrared plate 1 has a first surface 11 and a second surface 12 arranged in a spaced manner, the first surface 11 is used for emitting infrared rays, the second surface 12 faces the heat exchange cavity 4 and is arranged in a spaced manner with the blowing member 3, and the air outlet 32 faces the second surface 12. The first surface 11 and the second surface 12 are two surfaces in the thickness direction of the infrared plate 1.

[0047] In use, the first surface 11 of the infrared plate 1 can bake and heat the target object, and the second surface 12 of the infrared plate 1 can exchange heat with the gas in the heat exchange cavity 4 when cooling, so that the infrared plate 1 can stop baking the target object in time after being powered off. Of course, the second surface 12 of the infrared plate 1 can also exchange heat with the gas in the heat exchange cavity 4 when heating, so that the infrared plate 1 can be quickly heated.

[0048] In an embodiment, the infrared plate 1 includes a substrate and a resistance layer, the substrate is a flat plate structure, and the resistance layer can be coated on the surface of the substrate or sandwiched between the substrates. The infrared plate 1 can adopt an existing design, and the present embodiment does not make too many limited descriptions.

[0049] In an embodiment, the shell 2 is provided with a mounting cavity, which forms an opening on the outer surface of the shell 2, and the infrared plate 1 is mounted in the mounting cavity and seals the opening, thereby forming a heat exchange cavity 4 together with the shell 2. The heat exchange cavity 4 is part of the mounting cavity. The mounting cavity 4 can be formed by the inner wall of the shell 2, and the second surface 12 can be located in the mounting cavity after assembly.

[0050] In an embodiment, the mounting cavity can have a shape matching that of the infrared plate 1. For example, the infrared plate 1 can have a cuboid structure, and the mounting cavity can be a cuboid cavity. In addition, the length of the infrared plate 1 can be equal to the length of the mounting cavity, and the width of the infrared plate 1 can be equal to the width of the mounting cavity. The length direction of the infrared plate 1 is the length direction of the mounting cavity, the width direction of the infrared plate 1 is the width direction of the mounting cavity, and the thickness direction of the infrared plate 1 is the depth direction of the mounting cavity.

[0051] In an embodiment, the shell 2 has an exhaust hole for communicating the heat exchange cavity 4 with an external space. The external space can be the space outside the infrared heater, and the exhaust hole can extend from the outer surface of the shell 2 to the mounting cavity and communicate with the mounting cavity. During operation, the gas in the heat exchange cavity 4 can be discharged from the heat exchange cavity 4 through the exhaust hole, thereby avoiding excessive gas pressure in the heat exchange cavity 4 and improving the safety and service life of the infrared heater.

[0052] In an embodiment, the shell 2 and the infrared plate 1 are detachably connected. When one of the infrared plate 1 and the shell 2 is damaged, only the damaged one needs to be replaced, and the entire infrared heater does not need to be replaced, thereby reducing the maintenance cost.

[0053] In an embodiment, the air blowing member 3 and the shell 2 are detachably connected. When one of the air blowing member 3 and the shell 2 is damaged, only the damaged one needs to be replaced, thereby reducing the maintenance cost.

[0054] In an embodiment, the air blowing member 3 is provided with an air outlet hole 33 (see Figure 4 ), which penetrates the inner surface and the outer surface of the air blowing member 3 and forms an air outlet 32 on the outer surface of the air blowing member 3. The inner surface of the air blowing member 3 is used to form the airflow channel 5, that is, the air outlet hole 33 extends from the outer surface of the air blowing member 3 to the inner surface of the air blowing member 3 and communicates with the airflow channel 5.

[0055] During operation, the gas in the airflow channel 5 enters the heat exchange cavity 4 through the air outlet hole 33 and exchanges heat with the infrared plate 1, so that the infrared plate 1 can quickly reach the preset temperature.

[0056] In an embodiment, the air outlet hole 33 can be a regular structure and have an axis. In this way, the air outlet hole 33 can be a circular hole or a square hole. The axis of the air outlet hole 33 intersects the second surface 12, and the air outlet hole 33 is obliquely directed towards the second surface 12, so that the air outlet 32 is directed towards the infrared plate 1. In addition, the angle between the axis of the air outlet hole 33 and the second surface 12 can be an acute angle, an obtuse angle or a right angle.

[0057] In addition, the opening of the air outlet hole 33 formed on the inner surface of the air blowing piece 3 is defined as a first opening. For an air outlet hole 33, "the air outlet hole 33 is obliquely directed towards the second surface 12" can mean that the air outlet hole 33 gradually approaches the second surface 12 along the axis of the air outlet hole 33 and from the first opening of the air outlet hole 33 to the air outlet 32 of the air outlet hole 33.

[0058] In an embodiment, the air blowing piece 3 is provided with a plurality of air outlet holes 33, which can improve the air outlet efficiency and thus improve the heat exchange efficiency with the infrared plate 1. At the same time, through the arrangement of the plurality of air outlet holes 33, the air outlet position can be more uniformly distributed, which is beneficial to the uniform distribution of the temperature of each region of the infrared plate 1. In addition, "a plurality" means more than or equal to two, and the meaning of "a plurality" in each embodiment is the same, which will not be described hereinafter.

[0059] In addition, the angles between the axes of different air outlet holes 33 and the second surface 12 can be the same or different. For example, in the example shown in FIG. 2, the axes of the air outlet holes 33 intersect but are not perpendicular to the second surface 12; in the example shown in FIG. 3, the axes of the air outlet holes 33 are all perpendicular to the second surface 12; in the example shown in FIG. 4, the axes of a part of the air outlet holes 33 are perpendicular to the second surface 12 (i.e., the angle between them is a right angle), and the axes of a part of the air outlet holes 33 intersect but are not perpendicular to the second surface 12. Figure 1 Figure 2 Figure 3

[0060] Of course, the air outlet hole 33 can also be arranged in other regular or irregular shapes.

[0061] In an embodiment, the air outlet holes 33 form at least one hole group, each hole group has a plurality of air outlet holes 33, and the plurality of air outlet holes 33 in each hole group are arranged at intervals in a first direction. Of course, in other embodiments, only one air outlet hole 33 can be arranged in some hole groups.

[0062] In addition, the first direction can be parallel to the length direction of the infrared plate 1. Alternatively, the first direction can intersect the length direction of the infrared plate 1, and the angle between them can be an acute angle, a right angle or an obtuse angle.

[0063] ​​​In addition, when the number of hole groups is multiple, the hole groups are arranged in sequence and spaced apart in the second direction, wherein the second direction can be perpendicular to the first direction, and the second direction can be parallel to the width direction of the infrared plate 1.

[0064] For example, in the example shown, two hole groups are arranged in the heat exchange cavity 4 in the second direction (i.e., the width direction of the infrared plate 1). Figure 1

[0065] In an embodiment, the air flow channel 5 extends along the first direction and penetrates through one end of the air blowing member 3 to form an air inlet 31 (see Figure 4 at the one end of the air blowing member 3, which facilitates the arrangement of the air flow channel 5 and the air inlet 31.

[0066] In an embodiment, the air blowing member 3 is a gas pipe. At this time, the air flow channel 5 can be a pipe hole surrounded by the pipe wall of the gas pipe and extending along the axial direction of the gas pipe. The axial line of the gas pipe can be parallel to the first direction. In addition, the air outlet 33 can be arranged on the side surface of the gas pipe, so that the air outlet 33 extends along the radial direction of the gas pipe to communicate with the air flow channel 5.

[0067] In an embodiment, one end of the air blowing member 3 is closed in the first direction, and the other end has an opening, i.e., the air flow channel 5 is a blind hole structure. At this time, the air inlet 31 (see Figure 4 ) can also be the opening of the air blowing member 3 in the first direction.

[0068] In an embodiment, a plurality of air blowing members 3 are arranged, and each air blowing member 3 is connected to the shell 2 and arranged in sequence and spaced apart. In the example shown, Figure 1 the number of air blowing members 3 is two.

[0069] In addition, when the number of air blowing members 3 is multiple, the air blowing members 3 can be arranged in sequence and spaced apart along the width direction of the infrared plate 1.

[0070] The embodiment of the utility model further provides a drying equipment, including gas supply device 6 and infrared heater. Gas supply device 6 is connected with air blowing member 3, to blow air to infrared plate 1 through air blowing member 3.

[0071] In an embodiment, the gas supply device 6 can include an air compressor, and when working, cold air can be supplied to the air blowing member 3 through the air compressor. It should be understood that when the function of supplying hot air to the air blowing member 3 needs to be realized, the gas supply device 6 also has a corresponding heater to heat the gas entering the air blowing member 3.

[0072] ​In an embodiment, the drying device further comprises a gas supply pipe 7, the gas supply device 6 is located outside the shell 2, one end of the gas supply pipe 7 is connected to the gas outlet end of the gas supply device 6, and the other end of the gas supply pipe 7 is connected to the gas inlet port 31 of the blowing member 3, and the gas supply device 6 supplies gas into the gas flow channel 5 through the gas supply pipe 7. Wherein, the shell 2 is provided with a corresponding avoiding hole, and the gas supply pipe 7 passes through the shell 2 from the avoiding hole.

[0073] In addition, the blowing member 3 can be connected to the shell 2 through the gas supply pipe 7. At this time, in addition to passing through the shell 2 from the avoiding hole, the middle part of the gas supply pipe 7 can also be connected with the shell 2, for example, the two can be connected together by welding, threaded connection or through the help of bolts and other connecting members.

[0074] In addition, when the gas supply device 6 includes an air compressor, the air compressor is connected to the blowing member 3 through the gas supply pipe 7; when the gas supply device 6 includes a heater, the heater can be arranged in the gas supply pipe 7, so as to heat the gas entering the gas supply pipe 7, thereby realizing the hot gas into the blowing member 3. Of course, the heater can also be installed at a suitable position according to actual needs.

[0075] In an embodiment, the drying device further comprises a control device 8, and the control device 8 is in communication connection with the gas supply device 6.

[0076] Specifically, the drying device further comprises a control signal line 9, one end of the control signal line 9 is connected with the gas supply device 6, and the other end is connected with the control device 8, and the control device 8 is used to control the gas supply device 6 to cut off and supply gas to the blowing member 3. At the same time, the start and stop of the heater can also be controlled by the control device 8. When the heater is working, hot gas can be introduced into the blowing member 3; when the heater stops working, cold gas can be introduced into the blowing member 3.

[0077] In addition, the control device 8 can be PLC or single-chip microcomputer.

[0078] It should be understood that the above related settings can also be replaced by other ways, such as:

[0079] In other embodiments, the gas outlet hole 33 is a long slot hole, which extends along the first direction. In actual products, the arrangement of the gas outlet hole 33 can form a slit on the blowing member 3. In this way, the efficiency of the blowing member 3 blowing gas into the heat exchange cavity 4 can be improved, and the gas blown out of the blowing member 3 can be uniformly distributed in the heat exchange cavity 4.

[0080] In other embodiments, the gas outlet 32 can also be an opening formed on the outer surface of the blowing member 3.

[0081] In other embodiments, the air blowing member 3 is provided with an air inlet hole, which penetrates the inner surface of the air blowing member 3 and the outer surface of the air blowing member 3, and forms an air inlet 31 on the outer surface of the air blowing member 3. At this time, if the air blowing member 3 is an air pipe, the two ends of the air pipe in the first direction can be closed, and the air inlet hole is arranged to extend to the inner wall of the air pipe from the outer side of the air pipe and communicate with the air flow channel 5.

[0082] The technical features of the above embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features of the above embodiments are described, but it should be understood that any combination of the technical features is within the scope of the present disclosure as long as the combination does not result in contradictions.

[0083] The above embodiments are merely used to illustrate the technical solutions of the present application, but not limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent features. Such modifications or replacements do not cause the nature of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. An infrared heater characterized by, The infrared plate, the shell and the blowing member are included; The infrared plate is used for connecting a power supply; The shell covers the infrared plate to form a heat exchange cavity between the infrared plate and an inner wall of the shell; The blowing member is arranged in the heat exchange cavity; The blowing member is provided with an airflow channel, and an air inlet and an air outlet are arranged on an outer surface of the blowing member, and the air inlet and the air outlet are both communicated with the airflow channel; The air inlet is used for connecting a gas supply device to supply air into the airflow channel through the gas supply device; The air outlet is used for blowing air into the heat exchange cavity to exchange heat with the infrared plate.

2. The infrared heater of claim 1, wherein, The blowing member is provided with an air outlet hole; The air outlet hole penetrates the inner surface and the outer surface of the blowing member, and forms the air outlet on the outer surface of the blowing member.

3. The infrared heater of claim 2, wherein, The blowing member is provided with a plurality of air outlet holes; Each air outlet hole constitutes at least one hole group, each hole group has a plurality of air outlet holes, and the plurality of air outlet holes in each hole group are arranged at intervals along a first direction.

4. The infrared heater of claim 2, wherein, The air outlet hole is a long slot hole, and the long slot hole extends along the first direction.

5. The infrared heater of claim 1, wherein, The blowing member is a gas pipe; and / or, The airflow channel extends along the first direction and penetrates one end of the blowing member to form the air inlet at one end of the blowing member; and / or, The blowing member is provided with an air inlet hole, and the air inlet hole penetrates the inner surface and the outer surface of the blowing member, and forms the air inlet on the outer surface of the blowing member.

6. The infrared heater of claim 1, wherein, The infrared plate has a first surface and a second surface arranged opposite to each other; The first surface is used for emitting infrared rays; The second surface faces the heat exchange cavity and is arranged at intervals with the blowing member; The air outlet faces the second surface.

7. The infrared heater of claim 1, wherein, The shell has an exhaust hole for communicating the heat exchange cavity with an external space.

8. The infrared heater of claim 1, wherein, The shell and the infrared plate are detachably connected; and / or, The blowing member and the shell are detachably connected; and / or, The blowing member is provided with a plurality of blowing members, each of which is connected to the shell and arranged at intervals.

9. A drying apparatus, characterized by, The infrared heater includes the gas supply device and the infrared heater according to any one of claims 1 to 8; The gas supply device is connected with the blowing member to blow air to the infrared plate through the blowing member.

10. The drying apparatus according to claim 9, characterized by The drying device further includes a gas supply pipe, the gas supply device is located outside the shell, one end of the gas supply pipe is connected to an air outlet end of the gas supply device, the other end of the gas supply pipe is connected to the air inlet, and the gas supply device supplies air into the airflow channel through the gas supply pipe; and / or, The drying device further includes a control device, and the control device is in communication connection with the gas supply device.

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