Suspension drying energy-saving device for coating

Abstract

The utility model belongs to the field of coating drying, and provides a suspension drying energy-saving device for coating, which comprises a hollow drying oven main body, an upper tuyere and a lower tuyere arranged in the drying oven main body, and an air inlet channel respectively connected with the upper tuyere and the lower tuyere, a coating film material can suspend in the drying oven main body under the action of up-down wind power without contact with guide rollers, so that high-speed coating can be realized, and the risks of scratching and electrostatic dust absorption in the drying oven are avoided; hot air generated after an organic solvent volatilizes and is incinerated by an organic waste gas incinerator is filtered by high-temperature-resistant filter cotton and then circularly enters the drying oven main body through a hot air inlet fan, so that the drying oven is environmentally friendly, and energy consumption is reduced; and after the coating film is taken out of the drying oven main body, the coating film is further dedusted through the static electricity removing roller and the high-viscosity dust sticking roller, so that the product cleanliness is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of coating drying, and more particularly relates to an energy-saving device for suspension drying in coating. Background Art

[0002] With the rapid development of the coating industry, coating products have been widely used in the fields of electronics, medical treatment, aviation, aerospace, etc. in recent years. As a key link in the coating operation, the cleanliness and energy consumption of oven drying are directly related to the appearance and coating efficiency of coating products.

[0003] At present, the drying link in the industry adopts the guide roll conduction method. Although this method can ensure the smoothness of the film surface, the high-speed coating guide roll is easy to scratch the film surface and there is a risk of electrostatic dust absorption. Maintaining a low coating speed all the time also affects the coating efficiency. Moreover, the solvent volatilization inside the oven is generally directly discharged for treatment, which increases the chemical cost of treating waste solvents and wastes energy. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an energy-saving device for suspension drying in coating, which enables the coating film material to be in a suspended state and cures the adhesive on the coating film material, including an oven main body with a hollow interior, an upper air nozzle and a lower air nozzle arranged inside the oven main body, and air inlet channels respectively connecting the upper air nozzle and the lower air nozzle;

[0005] Among them, two opposite sides of the oven main body are respectively provided with a feed inlet and a discharge outlet. Between the feed inlet and the discharge outlet is a drying treatment channel. The upper air nozzle and the lower air nozzle are respectively arranged on both sides of the drying treatment channel; the coating film material is input into the oven main body through the feed inlet. The upper air nozzle and the lower air nozzle respectively output hot air to the upper surface and the lower surface of the coating film material. The coating film material is output from the oven main body through the discharge outlet; the heated gas is input into the oven main body through the air inlet channels, the upper air nozzle and the lower air nozzle; a plurality of upper air nozzles and lower air nozzles are arranged inside the oven main body, and the plurality of upper air nozzles and lower air nozzles are arranged in an array and staggered. The gas output by the upper air nozzle and the lower air nozzle can make the coating film material in a suspended state inside the oven main body.

[0006] Preferably, the oven main body includes a top plate and a bottom plate. Mounting holes for connecting the upper air nozzle and the lower air nozzle are respectively arranged on the top plate and the bottom plate. The upper air nozzle and the lower air nozzle respectively pass through the top plate and the bottom plate. The ventilation channels inside the upper air nozzle and the lower air nozzle are respectively connected to the spaces on both sides of the top plate and the bottom plate;

[0007] An upper air inlet chamber and a lower air inlet chamber are respectively arranged on the outer sides of the top plate and the bottom plate. The proximal ends of the upper air inlet chamber and the lower air inlet chamber are close to the oven body, and the distal ends are far from the oven body; the proximal end of the upper air inlet chamber is connected to the top plate, the proximal end of the lower air inlet chamber is connected to the bottom plate, and the distal ends of the upper air inlet chamber and the lower air inlet chamber are connected to the air inlet passage; the upper air inlet chamber is used to connect the air inlet passage and a plurality of upper air nozzles, and the lower air inlet chamber is used to connect the air inlet passage and a plurality of lower air nozzles.

[0008] Preferably, an air outlet hole is further arranged on the oven body, and the suspension drying energy-saving device further includes an air outlet passage connected to the air outlet hole. The heated gas is input into the oven body through the air inlet passage, the upper air nozzles, and the lower air nozzles, and then output through the air outlet hole and the air outlet passage.

[0009] Preferably, a plurality of air outlet holes are arranged on the oven body, and the air outlet holes connect the inside and the outside of the oven body; an air outlet cavity is further arranged on the side surface of the oven body where the air outlet holes are arranged, and the air outlet cavity is used to connect the air outlet passage and a plurality of air outlet holes.

[0010] Preferably, the suspension drying energy-saving device further includes an air circulation system. The air circulation system includes an organic waste solvent incinerator, and the organic waste solvent incinerator is used to treat the waste gas containing organic solvent and heat the gas;

[0011] The air circulation system is sequentially connected to the air outlet hole, the air outlet passage, the organic waste solvent incinerator, the air inlet passage, the upper air nozzles, and the lower air nozzles; the air circulation system circulates and uses the hot air to dry the adhesive on the coated film material and treats the waste gas in the hot air.

[0012] Preferably, the air circulation system includes an upper circulation system and a lower circulation system, and the suspension drying energy-saving device includes an upper organic waste solvent incinerator and a lower organic waste solvent incinerator;

[0013] A plurality of air outlet holes are respectively arranged on two opposite side surfaces of the oven body, and a front air outlet chamber and a rear air outlet chamber are respectively arranged on the two side surfaces of the oven body where the air outlet holes are arranged;

[0014] The air inlet passage includes an upper air inlet passage and a lower air inlet passage. The upper air inlet passage is connected to the upper organic waste solvent incinerator and the upper air nozzles, and the lower air inlet passage is connected to the lower organic waste solvent incinerator and the lower air nozzles;

[0015] The air outlet passage includes an upper air outlet passage and a lower air outlet passage. The upper air outlet passage is connected to the front air outlet chamber and the upper organic waste solvent incinerator, and the lower air outlet passage is connected to the rear air outlet chamber and the lower organic waste solvent incinerator;

[0016] The upper circulation system is sequentially connected to the front air outlet chamber, the upper air outlet passage, the upper organic waste solvent incinerator, the upper air inlet passage, and the upper air nozzles; the lower circulation system is sequentially connected to the rear air outlet chamber, the lower air outlet passage, the lower organic waste solvent incinerator, the lower air inlet passage, and the lower air nozzles.

[0017] Preferably, upper high-temperature resistant filter cotton and lower high-temperature resistant filter cotton are respectively arranged at positions on the oven main body close to the upper air nozzle and the lower air nozzle; the gases input into the oven main body through the upper air nozzle and the lower air nozzle are respectively filtered by the upper high-temperature resistant filter cotton and the lower high-temperature resistant filter cotton.

[0018] Preferably, the suspension drying energy-saving device further includes a driving roller near the feed inlet and a winding shaft near the discharge outlet; the driving roller is used for transporting the coated film material into the oven main body; the winding shaft is used for winding the solidified coated film material.

[0019] Preferably, an electrostatic elimination assembly is arranged between the discharge outlet and the winding shaft, and the electrostatic elimination assembly includes an upper electrostatic elimination rubber roller, an upper high-viscosity dust sticking roller, a lower electrostatic elimination rubber roller, and a lower high-viscosity dust sticking roller;

[0020] The coated film material output from the discharge outlet passes between the upper electrostatic elimination rubber roller and the lower electrostatic elimination rubber roller, the upper high-viscosity dust sticking roller is arranged on one side of the upper electrostatic elimination rubber roller away from the coated film material, and the lower high-viscosity dust sticking roller is arranged on one side of the lower electrostatic elimination rubber roller away from the coated film material.

[0021] Preferably, the oven main body is further provided with a blowing device, and the blowing device is used for blowing air to the feed inlet and / or the discharge outlet to prevent impurities from entering the interior of the oven main body through the feed inlet and / or the discharge outlet.

[0022] As described above, for the suspension drying energy-saving device for coating of the present invention, the coated film material can be suspended in the oven main body through the up-and-down wind force, without contact with guide rollers, so that high-speed coating can be realized to avoid the risks of scratching and electrostatic dust absorption in the oven; the hot air after the volatilization of organic solvents is incinerated by the organic waste gas incinerator is filtered by the high-temperature resistant filter cotton and then circulated into the oven main body again through the hot air blower, which is green and environmentally friendly and saves energy consumption; after leaving the oven main body, the coated film material is further dust-removed by the electrostatic elimination roller and the high-viscosity dust sticking roller to ensure the cleanliness of the product. Description of the Drawings

[0023] The present invention will be more fully understood through the following detailed description in conjunction with the drawings, in which like elements are numbered in a similar manner, where:

[0024] Figure 1 is a schematic diagram of a suspension drying energy-saving device for coating according to an embodiment of the present invention;

[0025] Figure 2 is a schematic cross-sectional view of a suspension drying energy-saving device for coating according to an embodiment of the present invention;

[0026] Figure 3 is Figure 2 a partial schematic diagram at A in

[0027] Figure 4 It is a schematic diagram of the internal structure of a suspension drying energy-saving device for coating according to an embodiment of the present utility model;

[0028] Figure 5 It is a schematic diagram of the upper air nozzle and the lower air nozzle of a suspension drying energy-saving device for coating according to an embodiment of the present utility model;

[0029] Figure 6 It is a schematic diagram of the air blowing device of a suspension drying energy-saving device for coating according to an embodiment of the present utility model;

[0030] In the figure: oven main body 1, feed inlet 11, discharge outlet 12, upper air nozzle 13, lower air nozzle 14, upper high-temperature filter cotton 15, lower high-temperature filter cotton 16, air outlet hole 17, coating film material 2, top plate 21, bottom plate 22, upper air inlet cavity 23, lower air inlet cavity 24, upper air inlet channel 31, lower air inlet channel 32, upper organic waste solvent incinerator 33, lower organic waste solvent incinerator 34, upper air outlet channel 41, lower air outlet channel 42, front air outlet cavity 43, rear air outlet cavity 44, driving roller 51, winding shaft 52, upper static elimination rubber roller 61, upper high-viscosity dust sticking roller 62, lower static elimination rubber roller 63, lower high-viscosity dust sticking roller 64, air blowing device 65. Specific embodiments

[0031] The technical solutions of the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. However, the present utility model is not limited to the following embodiments.

[0032] With the rapid development of the coating industry, coating products have been widely used in the fields of electronics, medical, aviation, aerospace, etc. in recent years. Among them, oven drying, as a key link in the coating operation, its cleanliness and energy consumption are directly related to the appearance and coating efficiency of the coating products. At present, the drying link in the industry adopts the guide roller conduction method. Although this method can ensure the smoothness of the film surface, the high-speed coating guide roller is easy to scratch the film surface and there is a risk of electrostatic dust absorption. Keeping the coating speed low all the time also affects the coating efficiency. Moreover, the solvent volatilization inside the oven is generally directly discharged for treatment, which increases the chemical cost of treating waste solvents and wastes energy.

[0033] To solve the above problems, the present utility model provides a suspension drying energy-saving device for coating, which makes the coating film material 2 in a suspended state and cures the adhesive on the coating film material 2, including an oven main body 1 with a hollow interior, an upper air nozzle 13 and a lower air nozzle 14 arranged inside the oven main body 1, and air inlet channels respectively connected to the upper air nozzle 13 and the lower air nozzle 14;

[0034] Among them, two opposite sides of the oven main body 1 are respectively provided with a feed inlet 11 and a discharge outlet 12. Between the feed inlet 11 and the discharge outlet 12 is a drying treatment channel. The upper air nozzle 13 and the lower air nozzle 14 are respectively arranged on both sides of the drying treatment channel. The coated film material 2 is input into the oven main body 1 through the feed inlet 11. The upper air nozzle 13 and the lower air nozzle 14 respectively output hot air to the upper surface and the lower surface of the coated film material 2. The coated film material 2 is output from the oven main body 1 through the discharge outlet 12. The heated gas is input into the oven main body 1 through the air inlet channel, the upper air nozzle 13, and the lower air nozzle 14. A plurality of upper air nozzles 13 and lower air nozzles 14 are arranged inside the oven main body 1. The plurality of upper air nozzles 13 and lower air nozzles 14 are arranged in an array and staggered. The gas output by the upper air nozzle 13 and the lower air nozzle 14 can make the coated film material 2 in a suspended state inside the oven main body 1.

[0035] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, the outer shape of the oven main body 1 in this embodiment is a cube, which is an internally hollow area surrounded by baffles on the top, bottom, left, right, front, and rear sides. The air inlet and the air outlet are respectively arranged on the baffles on the left and right sides. The air inlet and the air outlet are rectangular openings, and the width is slightly larger than the width of the coated film material 2.

[0036] The coated film material 2 in this embodiment can be a coil material. After passing through the coater, the coated film material 2 is transported to the drying treatment channel inside the oven main body 1 through a roller shaft via the feed inlet 11, and then output through the discharge outlet 12, and finally wound up by a winding shaft 52.

[0037] In the specific implementation process, the heated gas is transported to the upper air nozzle 13 and the lower air nozzle 14 through the air inlet channel. The upper air nozzle 13 and the lower air nozzle 14 are respectively arranged on the baffles on the top and the bottom. A plurality of upper air nozzles 13 and lower air nozzles 14 are respectively arranged on the baffles on the top and the bottom. The plurality of upper air nozzles 13 and lower air nozzles 14 are arranged in an array and staggered. The gas output by the upper air nozzle 13 and the lower air nozzle 14 can make the coated film material 2 in a suspended state inside the oven main body 1. By adjusting the ratio of the air supply from the air inlet channel to the upper air nozzle 13 and the lower air nozzle 14. In most cases, due to the downward gravity of the coated film material 2, the air volume output by the lower air nozzle 14 is greater than the air volume output by the upper air nozzle 13. In addition, the roller shafts on both sides of the oven main body 1 can play a supporting role. The air flow of the upper air nozzle 13 and the lower air nozzle 14 only acts on the coated film material 2 inside the oven main body 1 to support it, so that the coated film material 2 inside the oven main body 1 is in a suspended state. Through the up and down wind forces, the coated film material 2 can be suspended in the oven main body 1 without contact with guide rollers, enabling high-speed coating and avoiding the risks of scratching and electrostatic dust absorption inside the oven.

[0038] In this embodiment, the air outlet holes 17 are arranged on the front and rear baffles. The heated gas is output to the drying treatment channel through the upper air nozzle 13 and the lower air nozzle 14, and then is output to the outside of the oven main body 1 through the air outlet holes 17.

[0039] Furthermore, the oven main body 1 includes a top plate 21 and a bottom plate 22. Mounting holes for connecting the upper air nozzle 13 and the lower air nozzle 14 are respectively arranged on the top plate 21 and the bottom plate 22. The upper air nozzle 13 and the lower air nozzle 14 respectively pass through the top plate 21 and the bottom plate 22, and the ventilation channels inside the upper air nozzle 13 and the lower air nozzle 14 are respectively connected to the spaces on both sides of the top plate 21 and the bottom plate 22.

[0040] An upper air inlet cavity 23 and a lower air inlet cavity 24 are respectively arranged on the outer sides of the top plate 21 and the bottom plate 22. The proximal ends of the upper air inlet cavity 23 and the lower air inlet cavity 24 are close to the oven main body 1, and the distal ends are far from the oven main body 1. The proximal end of the upper air inlet cavity 23 is connected to the top plate 21, the proximal end of the lower air inlet cavity 24 is connected to the bottom plate 22, and the distal ends of the upper air inlet cavity 23 and the lower air inlet cavity 24 are connected to the air inlet channel. The upper air inlet cavity 23 is used to connect the air inlet channel and the plurality of upper air nozzles 13, and the lower air inlet cavity 24 is used to connect the air inlet channel and the plurality of lower air nozzles 14.

[0041] In this embodiment, as Figure 3 、 Figure 4 、 Figure 5 shown, the upper air inlet cavity 23 and the lower air inlet cavity 24 are in a flared shape, including a large end and a small end. The shape of the large end is the same as that of the top plate 21 or the bottom plate 22, and the large ends of the upper air inlet cavity 23 and the lower air inlet cavity 24 are respectively connected to the top plate 21 and the bottom plate 22. The small end is used to connect the air inlet pipe. The air inlet pipe has one inlet and two outlets. The inlet end of the air inlet pipe is connected to the hot air source, and the hot air source can be a hot air source generated by a blowing device cooperating with a heating device. The two outlet ends of the air inlet pipe are respectively connected to the small ends of the upper air inlet cavity 23 and the lower air inlet cavity 24.

[0042] The upper air nozzle 13 and the lower air nozzle 14 are in a cylindrical shape, with a through channel inside, and the gas can pass through the internal channel.

[0043] Furthermore, air outlet holes 17 are also arranged on the oven main body 1. The suspension drying energy-saving device further includes an air outlet channel connected to the air outlet holes 17. The heated gas is input into the oven main body 1 through the air inlet channel, the upper air nozzle 13, and the lower air nozzle 14, and then is output through the air outlet holes 17 and the air outlet channel.

[0044] In this embodiment, as Figure 1 shown, one end of the air outlet channel connected to the air outlet holes 17 covers the outside of the air outlet holes 17, and the air outlet channel is used to collect the gas discharged from the air outlet holes 17.

[0045] The oven body 1 is provided with a plurality of air outlet holes 17 , which connect the inside and the outside of the oven body 1 ; an air outlet cavity is also provided on the side of the oven body 1 with the air outlet holes 17 , which is used to connect the air outlet channel and the plurality of air outlet holes 17 .

[0046] In the specific implementation process, the air outlet channel can be connected to the exhaust gas treatment equipment to treat the gas formed by the volatilization of the organic solvent contained in the gas.

[0047] Furthermore, the suspension drying energy-saving device also includes an air circulation system, which includes an organic waste solvent incinerator, and the organic waste solvent incinerator is used to treat waste gas containing organic solvents and heat the gas;

[0048] The air circulation system sequentially connects the air outlet 17, the air outlet channel, the organic waste solvent incinerator, the air inlet channel, the upper air nozzle 13 and the lower air nozzle 14; the air circulation system circulates the hot air to dry the adhesive on the coating film 2 and treats the waste gas in the hot air.

[0049] In this embodiment, Figure 1 As shown, the organic waste solvent incinerator is used to treat waste gas containing organic solvents and heat the gas. The hot air after the organic solvent is volatilized and burned in the organic waste gas incinerator is filtered through high-temperature resistant filter cotton and then circulated into the oven body 1 through the hot air inlet fan again, which is green, environmentally friendly and saves energy.

[0050] The air circulation system is used to generate heating gas and transport it into the oven body 1, and to recover the gas output from the oven body 1 and process and heat it again for recycling.

[0051] In the specific implementation process, the wind circulation system is connected to the air outlet 17, the air outlet channel, the organic waste solvent incinerator, the air inlet channel, the upper air nozzle 13 and the lower air nozzle 14 in sequence.

[0052] Further, the wind circulation system includes an upper circulation system and a lower circulation system, and the suspension drying energy-saving device includes an upper organic waste solvent incinerator 33 and a lower organic waste solvent incinerator 34;

[0053] A plurality of air outlet holes 17 are respectively disposed on two opposite sides of the oven body 1, and a front air outlet cavity 43 and a rear air outlet cavity 44 are respectively disposed on the two sides of the oven body 1 on which the air outlet holes 17 are disposed;

[0054] The air inlet channel includes an upper air inlet channel 31 and a lower air inlet channel 32, the upper air inlet channel 31 is connected to the upper organic waste solvent incinerator 33 and the upper air nozzle 13, and the lower air inlet channel 32 is connected to the lower organic waste solvent incinerator 34 and the lower air nozzle 14;

[0055] The air outlet channel includes an upper air outlet channel 41 and a lower air outlet channel 42. The upper air outlet channel 41 connects the front air outlet chamber 43 and the upper organic waste solvent incinerator 33, and the lower air outlet channel 42 connects the rear air outlet chamber 44 and the lower organic waste solvent incinerator 34;

[0056] The upper circulation system is sequentially connected to the front air outlet chamber 43, the upper air outlet channel 41, the upper organic waste solvent incinerator 33, the upper air inlet channel 31, and the upper air nozzle 13; the lower circulation system is sequentially connected to the rear air outlet chamber 44, the lower air outlet channel 42, the lower organic waste solvent incinerator 34, the lower air inlet channel 32, and the lower air nozzle 14.

[0057] In this embodiment, the air circulation system includes an upper circulation system and a lower circulation system, which respectively generate the gas in the upper air inlet chamber 23 and the lower air inlet chamber 24. The upper air inlet channel 31 and the lower air inlet channel 32 are independent pipelines. The upper air inlet channel 31 connects the upper organic waste solvent incinerator 33 and the upper air nozzle 13, and the lower air inlet channel 32 connects the lower organic waste solvent incinerator 34 and the lower air nozzle 14; the upper air outlet channel 41 connects the front air outlet chamber 43 and the upper organic waste solvent incinerator 33, and the lower air outlet channel 42 connects the rear air outlet chamber 44 and the lower organic waste solvent incinerator 34.

[0058] Furthermore, upper high-temperature filter cotton 15 and lower high-temperature filter cotton 16 are respectively arranged at positions on the oven main body 1 close to the upper air nozzle 13 and the lower air nozzle 14; the gas input into the oven main body 1 through the upper air nozzle 13 and the lower air nozzle 14 is respectively filtered by the upper high-temperature filter cotton 15 and the lower high-temperature filter cotton 16.

[0059] In this embodiment, the upper high-temperature filter cotton 15 and the lower high-temperature filter cotton 16 play a filtering role, and the high-temperature filter cotton refers to filter cotton that can withstand high temperatures.

[0060] Furthermore, the suspension drying energy-saving device further includes a driving roller 51 arranged near the feeding port 11 and a winding shaft 52 arranged near the discharging port 12; the driving roller 51 is used to convey the coated film material 2 into the oven main body 1; the winding shaft 52 is used to wind the solidified coated film material 2.

[0061] In this embodiment, on the one hand, the driving roller 51 provides the power to convey the coated film material 2, and on the other hand, it supports the coated film material 2 on the side of the driving roller 51 away from the oven main body 1.

[0062] Furthermore, an electrostatic elimination component is arranged between the discharging port 12 and the winding shaft 52, and the electrostatic elimination component includes an upper electrostatic elimination rubber roller 61, an upper high-viscosity dust sticking roller 62, a lower electrostatic elimination rubber roller 63, and a lower high-viscosity dust sticking roller 64;

[0063] The coated film material 2 output from the discharge port 12 passes between the upper static elimination rubber roller 61 and the lower static elimination rubber roller 63. The upper high-viscosity dust sticking roller 62 is arranged on the side of the upper static elimination rubber roller 61 away from the coated film material 2, and the lower high-viscosity dust sticking roller 64 is arranged on the side of the lower static elimination rubber roller 63 away from the coated film material 2.

[0064] In this embodiment, the static elimination assembly is used to remove the static electricity and dust of the coated film material 2.

[0065] Furthermore, the oven main body 1 is further provided with a blast device 65. The blast device 65 is used to blast air towards the feed port 11 and / or the discharge port 12 to prevent impurities from entering the interior of the oven main body 1 through the feed port 11 and / or the discharge port 12.

[0066] In this embodiment, the blast device 65 is used to form an air curtain, and the air curtain plays a simple barrier role to prevent impurities outside the oven main body 1 from entering the interior of the oven main body 1 through the feed port 11 and / or the discharge port 12.

[0067] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A coating suspension drying energy-saving device, which makes the coating film (2) in a suspended state and solidifies the adhesive on the coating film (2), characterized in that: The oven comprises an oven body (1) with a hollow interior, an upper air nozzle (13) and a lower air nozzle (14) arranged inside the oven body (1), and an air inlet channel respectively connected to the upper air nozzle (13) and the lower air nozzle (14); The two opposite sides of the oven body (1) are respectively provided with a feed inlet (11) and a discharge port (12); a drying process channel is located between the feed inlet (11) and the discharge port (12); an upper air nozzle (13) and a lower air nozzle (14) are respectively arranged on both sides of the drying process channel; the coating film material (2) is input into the oven body (1) through the feed inlet (11); the upper air nozzle (13) and the lower air nozzle (14) output hot air to the upper surface and the lower surface of the coating film material (2) respectively; and the coating film material (2) is dried and dried. (2) outputting the oven body (1) through the discharge port (12); the heated gas is input into the oven body (1) through the air inlet channel, the upper air nozzle (13) and the lower air nozzle (14); a plurality of upper air nozzles (13) and lower air nozzles (14) are arranged inside the oven body (1), and the plurality of upper air nozzles (13) and lower air nozzles (14) are arranged in an array and staggered, and the gas outputted by the upper air nozzles (13) and the lower air nozzles (14) can make the coated film material (2) be in a suspended state in the oven body (1).

2. A coating suspension drying energy-saving device according to claim 1, characterized in that: The oven body (1) comprises a top plate (21) and a bottom plate (22), the top plate (21) and the bottom plate (22) are respectively provided with mounting holes for connecting an upper air nozzle (13) and a lower air nozzle (14), the upper air nozzle (13) and the lower air nozzle (14) respectively pass through the top plate (21) and the bottom plate (22), and the ventilation channels inside the upper air nozzle (13) and the lower air nozzle (14) are respectively connected to the spaces on both sides of the top plate (21) and the bottom plate (22); An upper air inlet cavity (23) and a lower air inlet cavity (24) are respectively arranged on the outer sides of the top plate (21) and the bottom plate (22); the proximal ends of the upper air inlet cavity (23) and the lower air inlet cavity (24) are close to the oven body (1), and the distal ends are far away from the oven body (1); the proximal end of the upper air inlet cavity (23) is connected to the top plate (21), the proximal end of the lower air inlet cavity (24) is connected to the bottom plate (22), and the distal ends of the upper air inlet cavity (23) and the lower air inlet cavity (24) are connected to the air inlet channel; the upper air inlet cavity (23) is used to connect the air inlet channel and a plurality of upper air nozzles (13), and the lower air inlet cavity (24) is used to connect the air inlet channel and a plurality of lower air nozzles (14).

3. The energy-saving device for suspension drying for coating according to claim 1, characterized in that: The oven body (1) is also provided with an air outlet hole (17), and the suspended drying energy-saving device also includes an air outlet channel connected to the air outlet hole (17); the heated gas is input into the oven body (1) through the air inlet channel, the upper air nozzle (13), and the lower air nozzle (14), and then output through the air outlet hole (17) and the air outlet channel.

4. The energy-saving device for suspension drying for coating according to claim 3 is characterized in that: The oven body (1) is provided with a plurality of air outlet holes (17), and the air outlet holes (17) connect the inside and the outside of the oven body (1); an air outlet cavity is also provided on the side of the oven body (1) where the air outlet holes (17) are provided, and the air outlet cavity is used to connect the air outlet channel and the plurality of air outlet holes (17).

5. The energy-saving device for suspension drying for coating according to claim 4, characterized in that: The suspended drying energy-saving device further comprises an air circulation system, the air circulation system comprises an organic waste solvent incinerator, the organic waste solvent incinerator is used to treat waste gas containing organic solvents and heat the gas; The air circulation system is sequentially connected to the air outlet (17), the air outlet channel, the organic waste solvent incinerator, the air inlet channel, the upper air nozzle (13) and the lower air nozzle (14); the air circulation system circulates hot air to dry the adhesive on the coating film material (2) and treats the waste gas in the hot air.

6. The energy-saving device for suspension drying for coating according to claim 5, characterized in that: The wind circulation system comprises an upper circulation system and a lower circulation system, and the suspended drying energy-saving device comprises an upper organic waste solvent incinerator (33) and a lower organic waste solvent incinerator (34); Two opposite sides of the oven body (1) are respectively provided with a plurality of air outlet holes (17); and the two sides of the oven body (1) provided with the air outlet holes (17) are respectively provided with a front air outlet cavity (43) and a rear air outlet cavity (44); The air inlet channel comprises an upper air inlet channel (31) and a lower air inlet channel (32), the upper air inlet channel (31) is connected to the upper organic waste solvent incinerator (33) and the upper air nozzle (13), and the lower air inlet channel (32) is connected to the lower organic waste solvent incinerator (34) and the lower air nozzle (14); The air outlet channel comprises an upper air outlet channel (41) and a lower air outlet channel (42), the upper air outlet channel (41) is connected to the front air outlet cavity (43) and the upper organic waste solvent incinerator (33), and the lower air outlet channel (42) is connected to the rear air outlet cavity (44) and the lower organic waste solvent incinerator (34); The upper circulation system is sequentially connected to the front air outlet cavity (43), the upper air outlet channel (41), the upper organic waste solvent incinerator (33), the upper air inlet channel (31), and the upper air nozzle (13); and the lower circulation system is sequentially connected to the rear air outlet cavity (44), the lower air outlet channel (42), the lower organic waste solvent incinerator (34), the lower air inlet channel (32), and the lower air nozzle (14).

7. The energy-saving device for suspension drying for coating according to claim 1, characterized in that: An upper high-temperature resistant filter cotton (15) and a lower high-temperature resistant filter cotton (16) are respectively arranged at positions close to the upper air nozzle (13) and the lower air nozzle (14) on the oven body (1); the gas input into the oven body (1) through the upper air nozzle (13) and the lower air nozzle (14) is filtered by the upper high-temperature resistant filter cotton (15) and the lower high-temperature resistant filter cotton (16) respectively.

8. The energy-saving device for suspension drying for coating according to claim 1, characterized in that: The suspended drying energy-saving device also includes an active roller (51) arranged near the feed port (11) and a winding shaft (52) arranged near the discharge port (12); the active roller (51) is used to transmit the coating film material (2) into the oven body (1); and the winding shaft (52) is used to wind up the cured coating film material (2).

9. The energy-saving device for suspension drying for coating according to claim 8, characterized in that: A static electricity removal component is provided between the discharge port (12) and the reel (52), and the static electricity removal component comprises an upper static electricity removal rubber roller (61), an upper high-viscosity dust-adhesive roller (62), a lower static electricity removal rubber roller (63), and a lower high-viscosity dust-adhesive roller (64); The coated film material (2) outputted from the discharge port (12) passes between the upper anti-static rubber roller (61) and the lower anti-static rubber roller (63); the upper high-viscosity dust-adhesive roller (62) is arranged on the side of the upper anti-static rubber roller (61) away from the coated film material (2); and the lower high-viscosity dust-adhesive roller (64) is arranged on the side of the lower anti-static rubber roller (63) away from the coated film material (2).

10. The energy-saving device for suspension drying for coating according to claim 1, characterized in that: The oven body (1) is also provided with an air blowing device (65), which is used to blow air toward the feed inlet (11) and / or the discharge port (12) to prevent impurities from entering the interior of the oven body (1) through the feed inlet (11) and / or the discharge port (12).

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