Paper drying system convenient to convey and drying method

Abstract

The invention provides a paper drying system convenient to convey and a drying method. The system comprises a main drying cavity and a preheating cavity arranged at the front end of the main drying cavity; an arc-shaped breathable plate is arranged at the bottom of the preheating cavity, a preheating moisture discharging opening is formed in the top of the preheating cavity, a preheating roller is arranged below the preheating cavity, an annular heating piece is arranged outside the preheating roller, and the front side and the rear side of the arc-shaped breathable plate are each provided with an adjusting shaft. The adjusting shafts are respectively connected with a Y-shaped connecting frame, and the tail ends of the Y-shaped connecting frames are respectively connected with two auxiliary guide rollers; according to the device, through the mode of preheating, ironing, drying and finally ironing, the overall drying work of the paper can be more efficient, and the flatness of the dried paper can be better.

Description

Technical Field

[0001] The invention specifically relates to a paper drying system and a drying method which are convenient for conveying. Background Art

[0002] Paper drying technology is a key link in the production process of paper products. In the paper manufacturing process, after the pulp has gone through multiple processes such as forming and pressing, it contains a lot of water and needs to be dehydrated and solidified by drying equipment to meet the quality standards of the final product. The drying process not only affects the physical properties of the paper (such as strength, flatness, smoothness, etc.), but is also directly related to production efficiency, energy consumption and product quality stability. Therefore, the development and optimization of drying technology is of great significance to the paper products industry.

[0003] The existing paper drying equipment has the problem that the flatness of the paper after drying is not enough, which is inconvenient for transportation, stacking, collection and other steps in subsequent processes. Therefore, a paper drying system that is easy to transport is proposed to improve the flatness of the paper after drying. Summary of the invention

[0004] The purpose of the present invention is to provide a paper drying system that is easy to transport in view of the deficiencies of the prior art. The paper drying system that is easy to transport can well solve the above-mentioned problems.

[0005] In order to achieve the above requirements, the technical solution adopted by the present invention is: to provide a paper drying system that is easy to transport, which comprises a main drying chamber and a preheating chamber arranged at the front end of the main drying chamber; an arc-shaped air-permeable plate is arranged at the bottom of the preheating chamber, a preheating dehumidification port is arranged at the top of the preheating chamber, a preheating roller is arranged below the preheating chamber, and a ring-shaped heating plate is arranged on the outside of the preheating roller, an adjustment shaft is respectively arranged on the front and rear sides of the arc-shaped air-permeable plate, a Y-shaped connecting frame is respectively connected to the adjustment shaft, and two auxiliary guide rollers are respectively connected to the ends of the Y-shaped connecting frame; a first ironing roller and a second ironing roller are respectively arranged at the upper and lower top corners of the rear end of the main drying chamber, a first arc-shaped heating ironing component and a second arc-shaped heating ironing component are respectively arranged at the upper and lower top corners of the rear end of the main drying chamber, a paper inlet and a paper outlet are respectively arranged on the rear end surface of the main drying chamber, and a feeding guide roller and a discharging guide roller are respectively arranged on the sides of the paper inlet and the paper outlet, and the main drying chamber A rear roller is provided at the front end of the body; an upper lifting motor is provided at the upper end surface of the main drying chamber, and the output end at the bottom of the upper lifting motor is connected to the first drying heating plate, and the side end surface of the first drying heating plate is connected to the second drying heating plate through an upper arc-shaped ventilation plate; a lower lifting motor is provided at the bottom end surface of the main drying chamber, and the output end at the top of the lower lifting motor is connected to the third drying heating plate, and the side end surface of the third drying heating plate is connected to the fourth drying heating plate through a lower arc-shaped ventilation plate, and the lower arc-shaped ventilation plate and the The upper arc-shaped ventilation plates are all hollow structures, and the interior of the upper arc-shaped ventilation plates is connected to the air intake pump arranged on the side wall of the main drying cavity through a first spiral air guide pipe, and the interior of the lower arc-shaped ventilation plates is connected to the air outlet component arranged on the side wall of the main drying cavity through a second spiral air guide pipe. The inner end surface of the lower arc-shaped ventilation plates is evenly provided with air intake nozzles, and the inner end surface of the upper arc-shaped ventilation plates is evenly provided with air outlet nozzles; the first arc-shaped air guide plate and the second arc-shaped air guide plate are respectively provided on the two side walls inside the main drying cavity.

[0006] Preferably, the annular heating plate on the outside of the preheating roller fits with the arc-shaped air-permeable plate.

[0007] Preferably, the first arc-shaped heating and ironing component and the second arc-shaped heating and ironing component are matched with the first ironing roller and the second ironing roller respectively.

[0008] Preferably, the material inlet guide roller and the material outlet guide roller are connected to the inner side wall of the main drying chamber via a bracket arranged inside the main drying chamber.

[0009] Preferably, the top of the first curved air guide plate is at the same height as the top of the first drying and heating plate, the bottom of the first curved air guide plate is at the same height as the top of the fourth drying and heating plate, the top of the second curved air guide plate is at the same height as the top of the second drying and heating plate, and the bottom of the second curved air guide plate is at the same height as the top of the third drying and heating plate.

[0010] A paper drying method for easy transportation is provided, comprising the following steps:

[0011] S1: The paper enters the gap between the preheating roller and the arc-shaped air-permeable plate from the left side through the guidance of two auxiliary guide rollers. At this time, the heating plate preheats the paper. The water vapor during heating enters the preheating cavity through the air holes on the arc-shaped air-permeable plate and is discharged from the preheating dehumidification port.

[0012] S2: Afterwards, the paper enters the main drying chamber 5 through the paper entrance under the guidance of the two auxiliary guide rollers on the other side. The paper moves upward from bottom to top under the action of the feeding guide roller and enters the gap between the first arc-shaped heating and ironing component and the first ironing roller. In this process, the paper is ironed for the first time under the pressure of the first arc-shaped heating and ironing component and the first ironing roller. At the same time, the first arc-shaped heating and ironing component is heated and dried.

[0013] S3: After that, the paper extends into the main drying chamber and turns at the rear roller, then extends obliquely downward in the opposite direction and enters the gap between the second ironing roller and the second arc-shaped heating and ironing component. In this process, the paper passes through the first drying heating plate, the upper arc-shaped ventilation plate, the third drying heating plate, and the fourth drying heating plate for two main concentrated heating and drying operations;

[0014] S4: adjusting the height of the first drying and heating plate, the upper arc-shaped ventilation plate, the third drying and heating plate, and the fourth drying and heating plate by means of the upper lifting motor and the lower lifting motor;

[0015] S5: When the paper enters the gap between the second ironing roller and the second arc-shaped heating ironing component, the extrusion force between the second ironing roller and the second arc-shaped heating ironing component is used to achieve ironing after drying. Then, the paper is discharged from the paper outlet under the guidance of the discharge guide roller to complete the drying.

[0016] Preferably, the traveling speed of the paper in the main drying chamber is:

[0017] v = s ÷ t;

[0018] Wherein, v is the speed of the paper in the main drying chamber, s is the total length of the path of the paper in the main drying chamber, and t is the time required for the paper to be dried;

[0019] Furthermore, the total heat transfer time required for drying the paper in the main drying chamber is as follows:

[0020]

[0021] in:

[0022] t c Indicates heat transfer time, unit: second;

[0023] t f Indicates the total time required to reach the required drying degree, in seconds, is the upper limit of the integral, and the lower limit of the integral is 0, indicating that the calculation starts from the starting point of time;

[0024] L represents the total length of the drying channel, in meters, which is the upper limit of the inner layer integral. The lower limit of the integral is 0, which means that the calculation starts from the starting point of the channel;

[0025] ρ p Indicates the density of paper, unit: kilograms per cubic centimeter;

[0026] c p Indicates the specific heat capacity of paper, unit: J / kg\cdotpK;

[0027] T(x,t) represents the paper temperature at position x and time t, in degrees Celsius;

[0028] T p Indicates the surface temperature of the drying cylinder, unit: Celsius;

[0029] λ represents the thermal conductivity of paper, unit: W / m\cdotpK, which is a physical constant and represents the thermal conductivity of the material;

[0030] It represents the second-order partial derivative of the paper temperature in space, reflecting the rate of change of temperature with spatial position;

[0031] h represents the convection heat transfer coefficient, unit: W / m 2 \cdotpK, represents the heat exchange capacity between the paper surface and the surrounding air;

[0032] T ∞ Indicates the temperature of the surrounding air W / m 2 \cdotpK, which can usually be regarded as the air temperature or ambient temperature at the entrance of the drying cylinder;

[0033] The paper drying system and method for easy transportation have the following advantages:

[0034] When drying paper, the device first preheats the paper through the arc-shaped air-permeable plate and the preheating roller, and then uses the structure of the first arc-shaped heating and ironing component and the first ironing roller to heat and iron the paper, and then uses the first drying heating plate, the second drying heating plate, the upper arc-shaped ventilation plate, the upper lifting motor, the rear roller, the third drying heating plate, the lower lifting motor, the fourth drying heating plate and the lower arc-shaped ventilation plate to perform bidirectional centralized drying of the front and back sides of the paper, and finally uses the second arc-shaped heating and ironing component and the second ironing roller to perform the ironing process after drying, so that the paper can be guaranteed to have a good flatness after drying. At the same time, the drying method accurately calculates the heat transfer time. By introducing the calculus formula, the heat transfer time of the paper during the drying process can be more accurately calculated, which helps to optimize the operating parameters of the drying equipment and improve the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The same reference numerals are used in these drawings to represent the same or similar parts. The exemplary embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0036] Figure 1 The internal structure diagram of a paper drying system for facilitating transportation according to an embodiment of the present application is schematically shown.

[0037] Figure 2 The lateral structural diagram of the main drying chamber of the paper drying system for facilitating transportation according to one embodiment of the present application is schematically shown.

[0038] Among them: 1. Preheating chamber; 2. Preheating dehumidification port; 3. First arc heating and ironing component; 4. First ironing roller; 5. Main drying chamber; 6. Paper; 7. First drying heating plate; 8. Second drying heating plate; 9. Upper arc ventilation plate; 10. Upper lifting motor; 11. Rear roller; 12. Third drying heating plate; 13. Lower lifting motor; 14. Fourth drying heating plate; 15. Lower arc ventilation plate; 16. Second arc heating and ironing component; 17. Second ironing roller Roller; 18, paper outlet; 19, paper inlet; 20, discharge guide roller; 21, feed guide roller; 22, heating plate; 23, preheating roller; 24, auxiliary guide roller; 25, Y-type connecting frame; 26, adjusting shaft; 27, arc-shaped air permeable plate; 28, air intake pump; 29, first spiral air guide pipe; 30, air outlet nozzle; 31, first arc-shaped air guide plate; 32, second arc-shaped air guide plate; 33, air outlet component; 34, second spiral air guide pipe; 35, air intake nozzle. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the present application more clear, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] In the following description, references to "one embodiment", "an embodiment", "an example", "an example", etc. indicate that the embodiment or example described in this way may include specific features, structures, characteristics, properties, elements or limitations, but not every embodiment or example necessarily includes the specific features, structures, characteristics, properties, elements or limitations. In addition, repeated use of the phrase "according to one embodiment of the present application" may refer to the same embodiment, but does not necessarily refer to the same embodiment.

[0041] For simplicity, certain technical features well known to those skilled in the art are omitted in the following description.

[0042] According to one embodiment of the present application, a paper drying system that is convenient for transportation is provided, such as Figure 1-2 As shown, it includes a main drying chamber 5 and a preheating chamber 1 arranged at the front end of the main drying chamber 5; an arc-shaped air-permeable plate 27 is provided at the bottom of the preheating chamber 1, a preheating dehumidification port 2 is provided at the top of the preheating chamber 1, a preheating roller 23 is provided below the preheating chamber 1, and an annular heating plate 22 is provided on the outside of the preheating roller 23, an adjusting shaft 26 is respectively provided on the front and rear sides of the arc-shaped air-permeable plate 27, and a Y-shaped connecting frame 25 is respectively connected to the adjusting shaft 26, and two auxiliary guide rollers 24 are respectively connected to the ends of the Y-shaped connecting frame 25.

[0043] According to an embodiment of the present application, the first ironing roller 4 and the second ironing roller 17 are respectively provided at the upper and lower vertex corners of the rear end of the main drying chamber 5 of the paper drying system for easy transportation, and the first arc-shaped heating and ironing component 3 and the second arc-shaped heating and ironing component 16 are respectively provided at the upper and lower vertex corners of the rear end of the main drying chamber 5. A paper inlet 19 and a paper outlet 18 are respectively provided on the rear end surface of the main drying chamber 5, and a feeding guide roller 21 and a discharging guide roller 20 are respectively provided on the sides of the paper inlet 19 and the paper outlet 18, and a rear roller 11 is provided at the front end of the main drying chamber 5;

[0044] According to an embodiment of the present application, an upper lifting motor 10 is provided on the upper end surface of the main drying chamber 5 of the paper drying system for easy transportation, and the output end at the bottom of the upper lifting motor 10 is connected to the first drying heating plate 7, and the side end surface of the first drying heating plate 7 is connected to the second drying heating plate 8 through the upper arc-shaped ventilation plate 9, and the lower lifting motor 13 is provided on the lower end surface of the main drying chamber 5, and the output end of the top of the lower lifting motor 13 is connected to the third drying heating plate 12, and the side end surface of the third drying heating plate 12 is connected to the lower arc-shaped ventilation plate 15. Connected to the fourth drying heating plate 14, the lower arc-shaped ventilation plate 15 and the upper arc-shaped ventilation plate 9 are both hollow structures, the interior of the upper arc-shaped ventilation plate 9 is connected with the air intake pump 28 arranged on the side wall of the main drying cavity 5 through the first spiral air guide pipe 29, the interior of the lower arc-shaped ventilation plate 15 is connected with the air outlet component 33 arranged on the side wall of the main drying cavity 5 through the second spiral air guide pipe 34, the inner end surface of the lower arc-shaped ventilation plate 15 is evenly provided with air intake nozzles 35, and the inner end surface of the upper arc-shaped ventilation plate 9 is evenly provided with air outlet nozzles 30.

[0045] According to an embodiment of the present application, a first arc-shaped air guide plate 31 and a second arc-shaped air guide plate 32 are respectively provided on the two side walls inside the main drying chamber 5 of the paper drying system for easy transportation.

[0046] According to an embodiment of the present application, the annular heating plate 22 on the outside of the preheating roller 23 of the paper drying system for easy transportation matches the arc-shaped air-permeable plate 27 .

[0047] According to an embodiment of the present application, the first arc-shaped heating and ironing component 3 and the second arc-shaped heating and ironing component 16 of the paper drying system for easy transportation are matched with the first ironing roller 4 and the second ironing roller 17 respectively.

[0048] According to an embodiment of the present application, the inlet guide roller 21 and the outlet guide roller 20 of the paper drying system for easy transportation are connected to the inner wall of the main drying chamber 5 through a bracket arranged inside the main drying chamber 5.

[0049] According to one embodiment of the present application, the top of the first curved air guide plate 31 of the paper drying system for easy transportation is at the same height as the top of the first drying and heating plate 7, the bottom of the first curved air guide plate 31 is at the same height as the top of the fourth drying and heating plate 14, the top of the second curved air guide plate 32 is at the same height as the top of the second drying and heating plate 8, and the bottom of the second curved air guide plate 32 is at the same height as the top of the third drying and heating plate 12.

[0050] According to an embodiment of the present application, the paper drying method for facilitating transportation comprises the following steps:

[0051] S1: The paper enters the gap between the preheating roller and the arc-shaped air-permeable plate from the left side through the guidance of two auxiliary guide rollers. At this time, the heating plate preheats the paper. The water vapor during heating enters the preheating cavity through the air holes on the arc-shaped air-permeable plate and is discharged from the preheating dehumidification port.

[0052] S2: Afterwards, the paper enters the main drying chamber 5 through the paper entrance under the guidance of the two auxiliary guide rollers on the other side. The paper moves upward from bottom to top under the action of the feeding guide roller and enters the gap between the first arc-shaped heating and ironing component and the first ironing roller. In this process, the paper is ironed for the first time under the pressure of the first arc-shaped heating and ironing component and the first ironing roller. At the same time, the first arc-shaped heating and ironing component is heated and dried.

[0053] S3: After that, the paper extends into the main drying chamber and turns at the rear roller, then extends obliquely downward in the opposite direction and enters the gap between the second ironing roller and the second arc-shaped heating and ironing component. In this process, the paper passes through the first drying heating plate, the upper arc-shaped ventilation plate, the third drying heating plate, and the fourth drying heating plate for two main concentrated heating and drying operations;

[0054] S4: adjusting the height of the first drying and heating plate, the upper arc-shaped ventilation plate, the third drying and heating plate, and the fourth drying and heating plate by means of the upper lifting motor and the lower lifting motor;

[0055] S5: When the paper enters the gap between the second ironing roller and the second arc-shaped heating ironing component, the extrusion force between the second ironing roller and the second arc-shaped heating ironing component is used to achieve ironing after drying. Then, the paper is discharged from the paper outlet under the guidance of the discharge guide roller to complete the drying.

[0056] The paper travel speed inside the main drying chamber is:

[0057] v = s ÷ t;

[0058] Wherein, v is the speed of the paper in the main drying chamber, s is the total length of the path of the paper in the main drying chamber, and t is the time required for the paper to be dried;

[0059] Furthermore, the total heat transfer time required for drying the paper in the main drying chamber is as follows:

[0060]

[0061] in:

[0062] t c Indicates heat transfer time, unit: second;

[0063] t fIndicates the total time required to reach the required drying degree, in seconds, is the upper limit of the integral, and the lower limit of the integral is 0, indicating that the calculation starts from the starting point of time;

[0064] L represents the total length of the drying channel, in meters, which is the upper limit of the inner layer integral. The lower limit of the integral is 0, which means that the calculation starts from the starting point of the channel;

[0065] ρ p Indicates the density of paper, unit: kilograms per cubic centimeter;

[0066] c p Indicates the specific heat capacity of paper, unit: J / kg\cdotpK;

[0067] T(x, t) represents the paper temperature at position x and time t, in degrees Celsius;

[0068] T p Indicates the surface temperature of the drying cylinder, unit: Celsius;

[0069] λ represents the thermal conductivity of paper, unit: W / m\cdotpK, which is a physical constant and represents the thermal conductivity of the material;

[0070] It represents the second-order partial derivative of the paper temperature in space, reflecting the rate of change of temperature with spatial position;

[0071] h represents the convection heat transfer coefficient, unit: W / m 2 \cdotpK, represents the heat exchange capacity between the paper surface and the surrounding air;

[0072] T ∞ Indicates the temperature of the surrounding air W / m 2 \cdotpK, which can usually be regarded as the air temperature or ambient temperature at the entrance of the drying cylinder;

[0073] According to one embodiment of the present application, the paper drying system for easy transportation is used as follows: Figure 1As shown, the paper 6 enters the gap between the preheating roller 23 and the arc-shaped air-permeable plate 27 from the bottom from the left side through the guiding effect of the two auxiliary guide rollers 24. At this time, the heating plate 22 preheats the paper, and the water vapor during heating enters the preheating chamber 1 through the air holes on the arc-shaped air-permeable plate 27 and is discharged from the preheating dehumidification port 2. Then, the paper enters the main drying chamber 5 through the paper inlet 19 under the guiding effect of the two auxiliary guide rollers 24 on the other side. Then, the paper 6 moves upward from the bottom to the top under the action of the feeding guide roller 21 and enters the gap between the first arc-shaped heating and ironing component 3 and the first ironing roller 4. In this process, the paper completes the first ironing under the pressure of the first arc-shaped heating and ironing component 3 and the first ironing roller 4. At the same time, the first arc-shaped heating and ironing component 3 will be heated and dried. The first arc-shaped heating and ironing component 3 is provided with an arc-shaped electric heating plate to achieve heating. Then, the paper 6 The paper extends into the main drying chamber 5, turns at the rear roller 11, and then extends obliquely downward in the opposite direction to enter the gap between the second ironing roller 17 and the second arc-shaped heating and ironing component 16. In this process, the paper passes through the first drying heating plate 7, the upper arc-shaped ventilation plate 9, the third drying heating plate 12, and the fourth drying heating plate 14 for two main concentrated heating and drying processes. At the same time, the first drying heating plate 7, the upper arc-shaped ventilation plate 9, the third drying heating plate 12, and the fourth drying heating plate 14 can be height-adjusted by the upper lifting motor 10 and the lower lifting motor 13. When the paper enters the gap between the second ironing roller 17 and the second arc-shaped heating and ironing component 16, the extrusion force between the second ironing roller 17 and the second arc-shaped heating and ironing component 16 is used to achieve ironing after drying. Then, the paper is discharged from the paper outlet 18 under the guidance of the discharge guide roller 20 to complete the drying. At the same time, the air intake pump 28 can blow up the interior of the upper arc-shaped ventilation plate 9 through the first spiral air guide pipe 29, and the air will be blown out through the air outlet nozzle 30 on the upper arc-shaped ventilation plate 9. After passing through the paper 6, the air will flow in the opposite direction under the air guiding action of the first arc-shaped air guide plate 31, and will be further turned at the second arc-shaped air guide plate 32. After that, it will be sucked in by the air intake nozzle 35 at the lower arc-shaped ventilation plate 15 and discharged through the second spiral air guide pipe 34. The air outlet component 33 can be an air suction pump component. This set of air flow design can improve the water vapor discharge efficiency inside the main drying chamber 5. At the same time, the outside of the air intake pump 28 can be connected to an air heating device so that the blown air is dry hot air, so as to further improve the water vapor discharge efficiency.

[0074] According to an embodiment of the present application, the paper drying system that is easy to transport first preheats the paper through the arc-shaped air-permeable plate 27 and the preheating roller 23 when drying the paper, and then uses the structure of the first arc-shaped heating and ironing component 3 and the first ironing roller 4 to heat and iron the paper, and then uses the first drying heating plate 7, the second drying heating plate 8, the upper arc-shaped ventilation plate 9, the upper lifting motor 10, the rear roller 11, the third drying heating plate 12, the lower lifting motor 13, the fourth drying heating plate 14 and the lower arc-shaped ventilation plate 15 to perform bidirectional centralized drying of the front and back sides of the paper, and finally uses the second arc-shaped heating and ironing component 16 and the second ironing roller 17 to perform the ironing process after drying, so as to ensure that the paper has good flatness after drying.

[0075] The above-mentioned embodiments only represent several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the claims.

Claims

1. A paper drying system that is easy to transport, characterized in that: It comprises a main drying cavity and a preheating cavity arranged at the front end of the main drying cavity; The bottom of the preheating cavity is provided with an arc-shaped air-permeable plate, the top of the preheating cavity is provided with a preheating dehumidification port, a preheating roller is provided below the preheating cavity, an annular heating plate is provided outside the preheating roller, an adjustment shaft is respectively provided on the front and rear sides of the arc-shaped air-permeable plate, and a Y-shaped connecting frame is respectively connected to the adjustment shaft, and two auxiliary guide rollers are respectively connected to the ends of the Y-shaped connecting frame; A first ironing roller and a second ironing roller are respectively provided at the upper and lower vertex corners of the rear end of the main drying chamber, a first arc-shaped heating ironing component and a second arc-shaped heating ironing component are respectively provided at the upper and lower vertex corners of the rear end of the main drying chamber, a paper inlet and a paper outlet are respectively provided on the rear end surface of the main drying chamber, a feeding guide roller and a discharging guide roller are respectively provided on the sides of the paper inlet and the paper outlet, and a rear roller is provided at the front end of the main drying chamber; The upper end surface of the interior of the main drying chamber is provided with an upper lifting motor, the output end of the bottom of the upper lifting motor is connected to the first drying heating plate, the side end surface of the first drying heating plate is connected to the second drying heating plate through an upper arc-shaped ventilation plate, the bottom end surface of the interior of the main drying chamber is provided with a lower lifting motor, the output end of the top of the lower lifting motor is connected to the third drying heating plate, the side end surface of the third drying heating plate is connected to the fourth drying heating plate through a lower arc-shaped ventilation plate, the lower arc-shaped ventilation plate and the upper arc-shaped ventilation plate are both hollow structures, the interior of the upper arc-shaped ventilation plate is connected to the air intake pump arranged on the side wall of the main drying chamber through a first spiral air guide pipe, the interior of the lower arc-shaped ventilation plate is connected to the air outlet component arranged on the side wall of the main drying chamber through a second spiral air guide pipe, the inner end surface of the lower arc-shaped ventilation plate is evenly provided with air inlet nozzles, and the inner end surface of the upper arc-shaped ventilation plate is evenly provided with air outlet nozzles; A first arc-shaped air guide plate and a second arc-shaped air guide plate are respectively provided on the two side walls inside the main drying chamber.

2. The paper drying system for easy transportation according to claim 1, characterized in that: The annular heating plate on the outside of the preheating roller fits with the arc-shaped air-permeable plate.

3. The paper drying system for easy transportation according to claim 1, characterized in that: The first arc-shaped heating and ironing component and the second arc-shaped heating and ironing component are respectively matched with the first ironing roller and the second ironing roller.

4. The paper drying system for easy transportation according to claim 1, characterized in that: The inlet guide roller and the outlet guide roller are connected to the inner side wall of the main drying chamber through a bracket arranged inside the main drying chamber.

5. The paper drying system for easy transportation according to claim 1, characterized in that: The top of the first curved air guide plate is at the same height as the top of the first drying and heating plate, the bottom of the first curved air guide plate is at the same height as the top of the fourth drying and heating plate, the top of the second curved air guide plate is at the same height as the top of the second drying and heating plate, and the bottom of the second curved air guide plate is at the same height as the top of the third drying and heating plate.

6. A paper drying method for easy transportation, characterized in that: The steps include: S1: The paper enters the gap between the preheating roller and the arc-shaped air-permeable plate from the left side through the guidance of two auxiliary guide rollers. At this time, the heating plate preheats the paper. The water vapor during heating enters the preheating cavity through the air holes on the arc-shaped air-permeable plate and is discharged from the preheating dehumidification port. S2: Afterwards, the paper enters the main drying chamber 5 through the paper entrance under the guidance of the two auxiliary guide rollers on the other side. The paper moves upward from bottom to top under the action of the feeding guide roller and enters the gap between the first arc-shaped heating and ironing component and the first ironing roller. In this process, the paper is ironed for the first time under the pressure of the first arc-shaped heating and ironing component and the first ironing roller. At the same time, the first arc-shaped heating and ironing component is heated and dried. S3: After that, the paper extends into the main drying chamber and turns at the rear roller, then extends obliquely downward in the opposite direction and enters the gap between the second ironing roller and the second arc-shaped heating and ironing component. In this process, the paper passes through the first drying heating plate, the upper arc-shaped ventilation plate, the third drying heating plate, and the fourth drying heating plate for two main concentrated heating and drying operations; S4: adjusting the height of the first drying and heating plate, the upper arc-shaped ventilation plate, the third drying and heating plate, and the fourth drying and heating plate by means of the upper lifting motor and the lower lifting motor; S5: When the paper enters the gap between the second ironing roller and the second arc-shaped heating ironing component, the extrusion force between the second ironing roller and the second arc-shaped heating ironing component is used to achieve ironing after drying. Then, the paper is discharged from the paper outlet under the guidance of the discharge guide roller to complete the drying.

7. The paper drying method for easy transportation according to claim 6, characterized in that: The traveling speed of the paper inside the main drying chamber is: v = s ÷ t; Wherein, v is the speed of the paper in the main drying chamber, s is the total length of the path of the paper in the main drying chamber, and t is the time required for the paper to be dried; Furthermore, the total heat transfer time required for drying the paper in the main drying chamber is as follows: in: t c Indicates heat transfer time, unit: second; t f Indicates the total time required to reach the required drying degree, in seconds, is the upper limit of the integral, and the lower limit of the integral is 0, indicating that the calculation starts from the starting point of time; L represents the total length of the drying channel, in meters, which is the upper limit of the inner layer integral. The lower limit of the integral is 0, which means that the calculation starts from the starting point of the channel; ρ p Indicates the density of paper, unit: kilograms per cubic centimeter; c p Indicates the specific heat capacity of paper, unit: J / kg\cdotpK; T(x, t) represents the paper temperature at position x and time t, in degrees Celsius; T p Indicates the surface temperature of the drying cylinder, unit: Celsius; λ represents the thermal conductivity of paper, unit: W / m\cdotpK, which is a physical constant and represents the thermal conductivity of the material; It represents the second-order partial derivative of the paper temperature in space, reflecting the rate of change of temperature with spatial position; h represents the convection heat transfer coefficient, unit: W / m 2 \cdotpK, represents the heat exchange capacity between the paper surface and the surrounding air; T ∞ Indicates the temperature of the surrounding air W / m 2 \cdotpK, can usually be regarded as the air temperature or ambient temperature at the entrance of the drying cylinder.

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