Environment-friendly high-uniformity dipping and drying equipment

Abstract

The invention relates to the technical field of drying, in particular to environment-friendly high-uniformity dipping and drying equipment which comprises a drying equipment mounting main body, closed side plates are fixedly mounted on the outer surfaces of the two sides of the drying equipment mounting main body correspondingly, and a drying box is arranged on one side of the drying equipment mounting main body; the drying device has the beneficial effects that the interior of the drying box is distributed and arranged through the drying interval fan cover, and the preheating hollow guide roller is improved, so that cooling air enters the U-shaped air duct area through the hot air inlet after being heated by the heating pipe in a centralized manner; the air flow enters a V-shaped drying air pipe through a lower air inlet groove and an upper air inlet groove to assist the drying air pipe in uniformly discharging the air to uniformly dry the base material, and then is upwards sucked out under the action of a leading-out fan, so that the air flow carries moisture evaporated by the base material to generate humid and hot air, and the humid and hot air is sucked out by the leading-out fan and is conveyed into a central fixed pipe through a humid and hot air discharging pipe; and the hot air is dispersed from the hot air radiating grooves and enters the inner side of the preheating hollow guide roller to perform non-contact heat exchange with a base material.

Description

Technical Field

[0001] The invention belongs to the technical field of drying, and in particular relates to an environmentally friendly high-uniformity impregnation drying device. Background Art

[0002] Impregnation drying equipment is usually used to evenly coat liquid or slurry on a substrate (such as film, paper, textile, etc.), and then dry it to achieve the desired drying effect. This equipment is widely used in many industries such as battery manufacturing, coating processing, textile processing, etc. The drying stage mainly pulls the coated substrate into the drying area. Under the action of hot air, infrared heating or other drying methods, the solvent in the liquid or slurry is evaporated, leaving the desired coating. In the prior art, the impregnation drying equipment cannot strip off the wet gas. When the subsequent impregnated paper is dried, it will cause secondary water immersion to the impregnated paper, resulting in a decrease in the drying effect of the impregnated paper.

[0003] The existing Chinese patent document with publication number CN117626708A proposes an integrated impregnation and drying device for impregnated paper. The device solves the above problem by arranging a condenser between the air outlet component and the heating component, arranging a drain pipe at the bottom of the air outlet component, and utilizing the condensation effect of the condenser on the humid air to separate the liquid from the air in the humid air. However, in the condensation process, cooling wind or other cooling media are needed to lower the temperature so that the water vapor in the humid air is condensed into liquid water. This process requires additional energy consumption.

[0004] Therefore, the present invention proposes an environmentally friendly high-uniformity impregnation and drying equipment to solve the problem that the impregnation and drying equipment in the prior art needs to consume energy during the condensation process. The drying box and the guide roller can be designed so that the hot and humid air above them can be discharged into the guide roller to perform contactless pre-drying on the impregnated substrate to be dried, thereby achieving the purpose of heat exchange, raising the temperature of the substrate while removing moisture in the hot and humid air, thereby achieving the purpose of energy saving and environmental protection. Summary of the invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide an environmentally friendly high-uniformity impregnation and drying equipment to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an environmentally friendly high-uniformity impregnation and drying equipment, comprising a drying equipment installation body, closed side panels are fixedly installed on the outer surfaces of both sides of the drying equipment installation body, a drying box is arranged on one side of the drying equipment installation body, a preheating guide roller assembly is arranged in the middle of the drying equipment installation body, a drying interval air hood is arranged on the inner side of the drying box, a V-shaped drying air duct and an auxiliary drying air duct are arranged on the inner side of the drying interval air hood, and the preheating guide roller assembly includes a preheating hollow guide roller and a central fixed tube.

[0007] Preferably, the drying interval air hood is fixedly mounted on the inner wall of the drying box, the V-shaped drying air duct and the auxiliary drying air duct are respectively fixedly mounted on the inner wall of the lower air inlet groove, the auxiliary drying air duct is symmetrically arranged above the V-shaped drying air duct, and the inner walls on both sides of the drying interval air hood are provided with lower air inlet grooves and upper air inlet grooves corresponding to the V-shaped drying air duct and the auxiliary drying air duct.

[0008] Preferably, drying hot air grooves are evenly distributed on the side of the V-shaped drying air duct opposite to the lower air inlet groove, guide rollers are symmetrically distributed between the auxiliary drying air duct and the V-shaped drying air duct, the rotating shafts at both ends of the guide rollers pass through the drying interval wind cover and are rotatably installed on the side wall of the drying box, and a motor for driving the guide rollers to rotate is arranged on the outside of the drying box.

[0009] Preferably, a hot air inlet is symmetrically provided at the lower part of the side wall of the drying interval air hood, a cooling air square tube is provided in the inner middle part of the drying interval air hood, heating tubes are symmetrically provided on both sides of the cooling air square tube, and a cooling air outlet is provided in the middle of the side wall of the cooling air square tube.

[0010] Preferably, a hot and humid air outlet hood is fixedly installed on the top of the drying interval air hood, and the hot and humid air outlet hood is located above the middle part of the two groups of auxiliary drying air ducts. An outlet fan is fixedly installed in the upper middle part of the hot and humid air outlet hood, and a hot and humid air exhaust pipe is fixedly installed at the outlet pipe end of the outlet fan.

[0011] Preferably, an introduction fan is provided on one side of the drying box, an air recovery pipe is fixedly installed on the air outlet pipe end of the introduction fan, one end of the air recovery pipe passes through the side wall of the drying interval air hood and enters the interior of the cooling air square pipe, a cooling air injection pipe is fixedly installed on the air inlet pipe end of the introduction fan, and an auxiliary air inlet pipe is provided on the outer side of one end of the cooling air injection pipe.

[0012] Preferably, the preheating hollow guide roller is rotatably mounted on the inner side wall of the drying equipment installation body, and multiple groups of preheating hollow guide rollers are provided. The multiple groups of preheating hollow guide rollers are movably connected through gear rings and chains. A motor and a gear assembly for driving the multiple groups of preheating hollow guide rollers to rotate are provided on the outer side of the drying equipment installation body, and the central fixed tube is arranged in the middle of the preheating hollow guide roller. Sealing rings matching the preheating hollow guide roller are respectively arranged on both sides of the central fixed tube, and both ends of the central fixed tube are respectively fixedly connected to the inner walls of the closed side panels.

[0013] Preferably, the inner wall of the moist and hot air exhaust pipe is fixedly connected to the inner surface of one end of the central fixed pipe through a branch pipe, and the inner wall of the cooling air injection pipe is fixedly connected to the inner surface of the other end of the central fixed pipe through a branch pipe, and a condensed water exhaust pipe is arranged below the side wall of the other end of the central fixed pipe.

[0014] Preferably, the inner surface of the preheating hollow guide roller is evenly distributed with heat exchange fins, and guide fins are obliquely fixedly installed on both sides of the heat exchange fins. The guide fins are staggered, and guide oblique teeth are evenly distributed on both sides of the guide fins. A condensate discharge groove is opened under the side wall of the guide fin on one side.

[0015] Preferably, the inner diameter of one end of the central fixed tube connected to the cooling air injection tube is smaller than the inner diameter of one end of the central fixed tube connected to the humid hot air exhaust pipe, and hot air heat dissipation grooves are symmetrically opened on both sides of the inner wall of the central fixed tube, and a Y-shaped condensation water connecting pipe is fixedly installed on the top of the inner wall of the central fixed tube, and a semi-closed water pipe compatible with the Y-shaped condensation water connecting pipe is fixedly installed on the inner surface of the bottom of the central fixed tube, and the side of the semi-closed water pipe close to the cooling air injection tube is an open opening, and dispersion fins are symmetrically fixedly installed on both sides of the outer surface of the semi-closed water pipe, and the positions of the dispersion fins correspond one by one to the positions of the hot air heat dissipation grooves.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The interior of the drying box is distributed through the drying interval hood, and the central fixed pipe is connected by the introduction fan and the hot and humid air exhaust pipe. In combination with the improvement of the preheating hollow guide roller, the cooling air enters through the cooling air square pipe and is dispersed into the heated pipes on both sides for centralized heating. It then enters the U-shaped air duct area through the hot air inlet, and then enters the V-shaped drying air duct and the auxiliary drying air duct through the lower air inlet slot and the upper air inlet slot to be evenly discharged to dry the substrate evenly, and then is sucked upward under the action of the outlet fan, so that the airflow carries the evaporated moisture of the substrate to generate hot and humid gas, which is sucked out by the outlet fan through the hot and humid air. The air is transported to the inside of the central fixed pipe through the hot air exhaust pipe, dispersed from the hot air heat dissipation slot and entered into the inner side of the preheating hollow guide roller, and exchanged heat with the substrate without contact. The hot and humid air is cooled and condensed before the substrate is dried. No additional energy is required to condense the hot and humid air, and the heat of the hot and humid airflow is recovered to preheat the substrate before drying. The water content of the hot and humid air inside the drying box is reduced to avoid affecting the drying of the impregnated substrate. The temperature of the substrate surface can be increased, and the heat transfer during the drying process can be improved, so that the drying is more uniform, the drying efficiency is higher, and it is more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of one side of the present invention.

[0019] Figure 2 It is a schematic diagram of the overall structure of the other side of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure after one side of the closed side panel of the present invention is opened.

[0021] Figure 4 This is a schematic structural diagram of the other closed side panel of the present invention after it is opened.

[0022] Figure 5 It is a structural schematic diagram of one side of the drying interval air cover of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the drying box of the present invention when it is opened from above.

[0024] Figure 7 It is a schematic diagram of the structure of the drying box of the present invention when the bottom is opened and viewed from above.

[0025] Figure 8 It is a schematic diagram of the internal structure of the drying interval air hood of the present invention.

[0026] Fig. 9 It is a schematic diagram of the overall internal structure of the present invention.

[0027] Fig.10 It is a schematic diagram of the top view of the drying interval air cover of the present invention.

[0028] Fig.11 It is a schematic diagram of the structure of the drying interval air hood of the present invention when viewed from above.

[0029] Fig.12 This is a schematic diagram of the structure of the drying compartment air hood of the present invention when one side is opened and viewed from above.

[0030] Fig.13 It is a schematic diagram of the distribution structure of the preheating guide roller assembly of the present invention.

[0031] Fig.14 It is a schematic diagram of the connection relationship structure of the preheating hollow guide roller of the present invention.

[0032] Fig.15 It is a schematic diagram of the comparative structure of the two ends of the preheating hollow guide roller of the present invention.

[0033] Fig.16 It is a schematic diagram of the internal structure of the preheating hollow guide roller of the present invention.

[0034] Fig.17 It is a schematic diagram of the cross-sectional structure of the preheating hollow guide roller and the central fixed tube of the present invention.

[0035] Fig.18 It is a schematic diagram of the central fixed tube structure of the present invention.

[0036] Fig.19 It is a schematic diagram of the heat exchange fin structure of the present invention.

[0037] Fig. 20 For the present invention Fig.13 A is an enlarged structural diagram of FIG.

[0038] In the figure: 1. Drying equipment installation body; 11. Closed side panel; 2. Drying box; 21. Hot and humid air outlet cover; 22. Exhaust fan; 23. Hot and humid air exhaust pipe; 24. Inlet fan; 241. Air recovery pipe; 25. Cooling air injection pipe; 251. Auxiliary air inlet pipe; 26. Drying interval air cover; 261. Lower air inlet slot; 262. Upper air inlet slot; 263. Hot air inlet; 264. Cooling air square pipe; 2641. Cooling air outlet; 2642. Wind guide inclined plate; 27. Heating pipe; 28. Guide roller; 29. V-shaped drying duct; 291. Auxiliary drying duct; 3. Preheating guide roller assembly; 31. Preheating hollow guide roller; 311. Heat exchange fins; 312. Guide fins; 3121. Guide bevel teeth; 3122. Condensate discharge groove; 32. Central fixed pipe; 321. Hot air heat dissipation groove; 322. Y-shaped condensate pipe; 323. Semi-enclosed water guide pipe; 324. Dispersion fins; 33. Condensate discharge pipe; 34. Quick-drying air guide flat pipe; 341. Connecting square pipe; 342. Scraping groove; 343. Quick-drying air outlet groove. DETAILED DESCRIPTION

[0039] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] For example, see Figures 1 to 20The present invention provides a technical solution: an environmentally friendly high-uniformity impregnation drying equipment, comprising a drying equipment installation body 1, closed side panels 11 are fixedly installed on the outer surfaces of both sides of the drying equipment installation body 1, a drying box 2 is arranged on one side of the drying equipment installation body 1, a preheating guide roller assembly 3 is arranged in the middle of the drying equipment installation body 1, a drying interval air hood 26 is arranged on the inner side of the drying box 2, a V-shaped drying air duct 29 and an auxiliary drying air duct 291 are arranged on the inner side of the drying interval air hood 26, the preheating guide roller assembly 3 includes a preheating hollow guide roller 31 and a central fixed pipe 32, the drying interval air hood 26 is fixedly installed on the inner side wall of the drying box 2, the V-shaped drying air duct 29 and the auxiliary drying air duct 291 are respectively fixedly installed on the inner side wall of the lower air inlet slot 261, and the auxiliary drying air duct 291 is symmetrically arranged on the V-shaped drying air duct 29 At the top, the inner walls on both sides of the drying interval air hood 26 are provided with lower air inlet grooves 261 and upper air inlet grooves 262 corresponding to the V-shaped drying air duct 29 and the auxiliary drying air duct 291. Dry hot air grooves are evenly distributed on the sides of the V-shaped drying air duct 29 opposite to the lower air inlet groove 261. Guide rollers 28 are symmetrically distributed between the auxiliary drying air duct 291 and the V-shaped drying air duct 29. The rotating shafts at both ends of the guide rollers 28 penetrate the drying interval air hood 26 and are rotatably installed on the side walls of the drying box 2. A motor 1 for driving the guide rollers 28 to rotate is provided on the outside of the drying box 2. Hot air inlets 263 are symmetrically provided at the bottom of the side walls of the drying interval air hood 26. A cooling air square tube 264 is provided in the middle of the inner side of the drying interval air hood 26. Heating tubes 27 are symmetrically provided on both sides of the cooling air square tube 264. A cooling air outlet 2641 is provided in the middle of the side walls of the cooling air square tube 264.In this embodiment, the drying equipment installation body 1 is mainly used to install the preheating hollow guide roller 31 and the central fixed tube 32. The preheating hollow guide roller 31 rotates under the cooperation of the driving combination to transfer the impregnated substrate into the drying box 2 for drying. The guide roller 28 slowly moves the substrate under the drive of the motor. The special shapes of the V-shaped drying air duct 29 and the auxiliary drying air duct 291 are matched with the arrangement of the guide roller 28 to maximize the drying time of the substrate inside the drying interval air hood 26. The special shapes of the V-shaped drying air duct 29 and the auxiliary drying air duct 291 can evenly transport hot air to the upper and lower surfaces of the substrate to maintain uniform and synchronous drying of the upper and lower surfaces of the substrate. The drying interval air hood 26 will The inner side of 26 is separated into a U-shaped air duct area, and the cooling air enters through the cooling air square tube 264 and then disperses into the two sides below the drying interval air cover 26 through the cooling air outlet 2641. The two sides of the cooling air outlet 2641 are symmetrically provided with air guide inclined plates 2642, and the heating pipe 27 is arranged between the air guide inclined plates 2642 on the same side. The air guide inclined plates 2642 can guide and concentrate the cooling air so that the cooling air is concentratedly heated by the heating pipe 27 and then enters the U-shaped air duct area through the hot air inlet 263, and then enters the V-shaped drying air duct 29 and the auxiliary drying air duct 291 through the lower air inlet groove 261 and the upper air inlet groove 262. The substrate passing through the V-shaped drying air duct 29 and the auxiliary drying air duct 291 is evenly dried. ;

[0041] For example 2, please refer to Figures 1 to 20On the basis of the first embodiment, in order to recycle the heat of the hot and humid gas discharged from the drying box 2, the present embodiment further proposes that a hot and humid air outlet cover 21 is fixedly installed on the top of the drying interval air cover 26, and the hot and humid air outlet cover 21 is located above the middle of the two groups of auxiliary drying air ducts 291. An outlet fan 22 is fixedly installed in the middle of the upper part of the hot and humid air outlet cover 21, and a hot and humid air outlet pipe 23 is fixedly installed at the outlet pipe end of the outlet fan 22. An inlet fan 24 is provided on one side of the drying box 2, and an air recovery pipe 241 is fixedly installed at the outlet pipe end of the inlet fan 24. One end of the air recovery pipe 241 passes through the side wall of the drying interval air cover 26 and enters the interior of the cooling air square pipe 264, and the air inlet pipe of the inlet fan 24 A cooling air injection pipe 25 is fixedly installed at the end, and an auxiliary air inlet pipe 251 is arranged on the outer side of one end of the cooling air injection pipe 25. The preheating hollow guide roller 31 is rotatably installed on the inner side wall of the drying equipment installation body 1. The preheating hollow guide roller 31 is provided with multiple groups, and the multiple groups of preheating hollow guide rollers 31 are movably connected through gear rings and chains. The outer side of the drying equipment installation body 1 is provided with a motor and a gear assembly for driving the multiple groups of preheating hollow guide rollers 31 to rotate. The central fixed pipe 32 is arranged in the middle of the preheating hollow guide roller 31, and sealing rings adapted to the preheating hollow guide roller 31 are respectively arranged on both sides of the central fixed pipe 32. The two ends of the central fixed pipe 32 are respectively fixedly connected to the inner wall of the closed side plate 11, and the humid hot air exhaust pipe 23 The inner wall of the cooling air injection pipe 25 is fixedly connected to the inner surface of one end of the central fixed pipe 32 through a branch pipe, and the inner wall of the cooling air injection pipe 25 is fixedly connected to the inner surface of the other end of the central fixed pipe 32 through a branch pipe. A condensed water discharge pipe 33 is arranged below the side wall of the other end of the central fixed pipe 32; in the present embodiment, a triangular gap is arranged between the auxiliary drying air duct 291, and the hot air flow discharged from the auxiliary drying air duct 291 and the V-shaped drying air duct 29 is sucked out upward under the action of the outlet fan 22 after drying the surface of the substrate, and the preheating hollow guide roller 31 just covers the triangular gap between the auxiliary drying air duct 291, so that the airflow carries the evaporated moisture of the substrate to generate humid hot gas which is sucked out by the outlet fan 22. The super-humid hot air is discharged from the exhaust pipe 23 and transported to the interior of the central fixed pipe 32. The preheating hollow guide roller 31 transmits the substrate before drying and performs contactless heat exchange with the airflow inside the central fixed pipe 32. The humid hot air is cooled before the substrate is dried, and the heat of the humid hot airflow is recovered to preheat the substrate before drying. This can increase the surface temperature of the substrate and make the solvent in the liquid evaporate faster. In addition, the heat exchange efficiency between the preheated substrate and the drying equipment is higher, which is beneficial to the heat transfer during the drying process. The preheated substrate is easier to dry, shortening the drying time, improving production efficiency, reducing energy consumption during the drying process, reducing production costs, and reducing the temperature difference between the inside and surface of the substrate, making the drying process more uniform.

[0042] For example 3, please refer to Figures 1 to 20On the basis of the second embodiment, in order to improve the heat exchange efficiency between the preheating hollow guide roller 31 and the central fixed tube 32, the present embodiment further proposes that the inner surface of the preheating hollow guide roller 31 is evenly distributed with heat exchange fins 311, and guide fins 312 are respectively fixedly installed obliquely on both sides of the heat exchange fins 311. The guide fins 312 are staggered, and guide oblique teeth 3121 are evenly distributed on both sides of the guide fins 312. A condensate discharge groove 3122 is opened under the side wall of the guide fin 312 on one side. The inner diameter of one end of the central fixed tube 32 connected to the cooling air injection pipe 25 is smaller than the inner diameter of one end of the central fixed tube 32 connected to the humid hot air discharge pipe 23. Hot air heat dissipation grooves 321 are symmetrically opened on both sides of the inner wall of the central fixed tube 32. A Y-shaped condensation water pipe 322 is fixedly installed on the top of the inner wall of the fixed pipe 32, and a semi-enclosed water pipe 323 adapted to the Y-shaped condensation water pipe 322 is fixedly installed on the inner surface of the bottom of the central fixed pipe 32, and the semi-enclosed water pipe 323 is open on one side close to the cooling air injection pipe 25, and dispersion fins 324 are symmetrically fixedly installed on both sides of the outer surface of the semi-enclosed water pipe 323, and the positions of the dispersion fins 324 correspond to the positions of the hot air heat dissipation grooves 321 one by one; in this embodiment, the hot and humid gas enters through the central fixed pipe 32, and is dispersed from the hot air heat dissipation grooves 321 to enter the inner side of the preheating hollow guide roller 31, the heat exchange fins 311 are evenly distributed on the inner side of the preheating hollow guide roller 31, and the guide fins 312 are staggered with each other, and the guide fins 312 on the surface thereof are arranged in a staggered manner. The oblique teeth 3121 not only increase the heat exchange area and accelerate the condensation of the humid hot gas, but also the guide oblique teeth 3121 have a guiding effect on the water produced by condensation along the surface of the heat exchange fins 311. The humid hot air encounters the staggered heat exchange fins 311 for heat exchange, and the condensed water will drip along the heat exchange fins 311. During the condensation process, the preheating hollow guide roller 31 keeps rotating in cooperation with the driving component. Whenever the heat exchange fins 311 rotate to the Y-shaped condensation water pipe 322 at the top of the central fixed tube 32, the condensed liquid droplets will be guided by the heat exchange fins 311, the guide fins 312 and the guide oblique teeth 3121 through the condensation water discharge groove 3122 into the hot air heat dissipation groove 321, and finally discharged through the semi-enclosed water guide pipe 323 and the condensation water discharge pipe 33. The central fixed tube 32 is thick at one end and thin at the other end to facilitate the outflow of condensed water. The dispersion fins 324 on the outside of the dispersion fins 324 are arranged along the inside of the central fixed tube 32, which can evenly disperse and guide the humid hot air so that the humid hot air can enter the hot air heat dissipation slot 321, and by the way, it also plays a certain heat exchange role for the humid hot air that has not fully entered. The condensed air is recovered through the cooling air injection pipe 25 under the cooperation of the suction of the introduction fan 24, and then enters the cooling air square tube 264 through the air recovery pipe 241. The auxiliary air inlet pipe 251 can replenish new air, which is reheated by the heating pipe 27 through the cooling air outlet 2641 to form hot air with a greatly reduced water content, thereby preventing the humid hot air from accumulating inside the drying box 2 and affecting the impregnated substrate.

[0043] Example 4, please refer to Figures 1 to 20 On the basis of the third embodiment, in order to make the upper part of the substrate also be preheated during the transmission process of the preheating hollow guide roller 31 to improve the uniformity of the substrate drying, the present embodiment further proposes that a quick-drying air guide flat tube 34 is arranged above the preheating hollow guide roller 31, and the quick-drying air guide flat tube 34 is fixedly installed above the inner surface of the drying equipment installation body 1, and a connecting square tube 341 is fixedly installed at the upper end of the quick-drying air guide flat tube 34, and one end of the connecting square tube 341 passes through the side wall of the auxiliary drying air duct 291, and the lower end of the quick-drying air guide flat tube 34 is arranged There is a scraping groove 342, and a quick-drying air outlet groove 343 is opened on the inner side below the scraping groove 342; in this embodiment, the quick-drying air guide flat tube 34 is connected to the V-shaped drying air duct 29 by connecting the square tube 341, so that part of the hot air flow enters the quick-drying air guide flat tube 34, and as the substrate is transmitted by the preheated hollow guide roller 31, the scraping groove 342 can scrape and smooth the impregnation solution above the substrate, and then the hot air is sprayed out through the quick-drying air outlet groove 343 to preheat and dry the top of the substrate, so that the substrate can be dried more evenly and quickly in the later stage.

[0044] For example 5, please refer to Figures 1 to 20 On the basis of the fourth embodiment, the present embodiment further proposes an environmentally friendly high-uniformity impregnation and drying equipment uniform drying method, comprising the following steps: step one, after the substrate enters the impregnation tank for impregnation, it is pulled up and transmitted through the preheated hollow guide roller 31 to enter the drying box 2 for drying; step two, the guide roller 28 slowly moves the substrate under the drive of the motor, and the cooling air enters through the cooling air square tube 264 and disperses into the heated tubes 27 on both sides for centralized heating, and then enters the U-shaped air duct area through the hot air inlet 263, and then enters the V-shaped drying air duct 29 and the auxiliary drying air duct 291 through the lower air inlet slot 261 and the upper air inlet slot 262, and is evenly discharged to evenly dry the substrate; step three, the hot air flow discharged from the auxiliary drying air duct 291 and the V-shaped drying air duct 29 passes through After the surface of the substrate is dried, it is sucked upward under the action of the outlet fan 22, so that the airflow carries the evaporated moisture of the substrate to generate humid hot gas, which is sucked out by the outlet fan 22 and transported to the inside of the central fixed tube 32 through the humid hot air exhaust pipe 23, and is dispersed from the hot air heat dissipation groove 321 to enter the inner side of the preheating hollow guide roller 31, and performs non-contact heat exchange with the substrate. The humid hot air is cooled before the substrate is dried, and the heat of the humid hot air flow is recovered to preheat the substrate before drying; step four, the condensed air is recovered through the cooling air injection pipe 25 under the suction cooperation of the introduction fan 24, and then enters the cooling air square pipe 264 through the air recovery pipe 241, and the auxiliary air inlet pipe 251 can replenish new air, which is reheated by the heating pipe 27 to form hot air for further heating.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly high uniformity impregnation drying device, comprising a drying device installation body (1), wherein closed side panels (11) are fixedly installed on both sides of the outer surface of the drying device installation body (1), characterized in that: A drying box (2) is arranged on one side of the drying equipment installation body (1), a preheating guide roller assembly (3) is arranged in the middle of the drying equipment installation body (1), a drying interval air hood (26) is arranged on the inner side of the drying box (2), a V-shaped drying air duct (29) and an auxiliary drying air duct (291) are arranged on the inner side of the drying interval air hood (26), and the preheating guide roller assembly (3) comprises a preheating hollow guide roller (31) and a central fixed tube (32).

2. The environmentally friendly high uniformity impregnation and drying equipment according to claim 1 is characterized in that: The drying interval air cover (26) is fixedly mounted on the inner wall of the drying box (2); the V-shaped drying air duct (29) and the auxiliary drying air duct (291) are respectively fixedly mounted on the inner wall of the lower air inlet slot (261); the auxiliary drying air duct (291) is symmetrically arranged above the V-shaped drying air duct (29); and the inner walls on both sides of the drying interval air cover (26) are provided with a lower air inlet slot (261) and an upper air inlet slot (262) corresponding to the V-shaped drying air duct (29) and the auxiliary drying air duct (291).

3. The environmentally friendly high uniformity impregnation and drying equipment according to claim 1 is characterized in that: The side of the V-shaped drying air duct (29) opposite to the lower air inlet groove (261) is evenly distributed with drying hot air grooves, and guide rollers (28) are symmetrically distributed between the auxiliary drying air duct (291) and the V-shaped drying air duct (29), and the rotating shafts at both ends of the guide rollers (28) penetrate the drying interval air cover (26) and are rotatably mounted on the side wall of the drying box (2), and a motor for driving the guide rollers (28) to rotate is arranged on the outside of the drying box (2).

4. The environmentally friendly high uniformity impregnation and drying equipment according to claim 1 is characterized in that: A hot air inlet (263) is symmetrically provided at the lower part of the side wall of the drying interval air hood (26), a cooling air square tube (264) is provided in the middle of the inner side of the drying interval air hood (26), heating tubes (27) are symmetrically provided on both sides of the cooling air square tube (264), and a cooling air outlet (2641) is provided in the middle of the side wall of the cooling air square tube (264).

5. The environmentally friendly high uniformity impregnation and drying equipment according to claim 1 is characterized in that: A moist hot air outlet hood (21) is fixedly installed on the top of the drying interval air hood (26), and the moist hot air outlet hood (21) is located above the middle of the two groups of auxiliary drying air ducts (291). An outlet fan (22) is fixedly installed in the middle of the upper part of the moist hot air outlet hood (21), and a moist hot air exhaust pipe (23) is fixedly installed at the outlet pipe end of the outlet fan (22).

6. The environmentally friendly high uniformity impregnation and drying equipment according to claim 5, characterized in that: An introduction fan (24) is provided on one side of the drying box (2); an air recovery pipe (241) is fixedly installed at the air outlet pipe end of the introduction fan (24); one end of the air recovery pipe (241) penetrates the side wall of the drying interval air cover (26) and enters the interior of the cooling air square pipe (264); a cooling air injection pipe (25) is fixedly installed at the air inlet pipe end of the introduction fan (24); an auxiliary air inlet pipe (251) is provided on the outer side of one end of the cooling air injection pipe (25).

7. The environmentally friendly high uniformity impregnation and drying equipment according to claim 1 is characterized by: The preheating hollow guide roller (31) is rotatably mounted on the inner side wall of the drying equipment installation body (1); the preheating hollow guide roller (31) is provided with multiple groups, and the multiple groups of the preheating hollow guide rollers (31) are movably connected through gear rings and chains; the outer side of the drying equipment installation body (1) is provided with a motor and a gear assembly for driving the multiple groups of the preheating hollow guide rollers (31) to rotate; the central fixed tube (32) is arranged in the middle of the preheating hollow guide roller (31); sealing rings matching the preheating hollow guide roller (31) are respectively arranged on both sides of the central fixed tube (32); and the two ends of the central fixed tube (32) are respectively fixedly connected to the inner wall of the closed side plate (11).

8. The environmentally friendly high uniformity impregnation and drying equipment according to claim 6, characterized in that: The inner wall of the moist and hot air discharge pipe (23) is fixedly connected to the inner surface of one end of the central fixed pipe (32) through a branch pipe, and the inner wall of the cooling air injection pipe (25) is fixedly connected to the inner surface of the other end of the central fixed pipe (32) through a branch pipe. A condensed water discharge pipe (33) is arranged below the side wall of the other end of the central fixed pipe (32).

9. The environmentally friendly high uniformity impregnation and drying equipment according to claim 7, characterized in that: Heat exchange fins (311) are evenly distributed on the inner surface of the preheating hollow guide roller (31), and guide fins (312) are respectively fixedly installed obliquely on both sides of the heat exchange fins (311). The guide fins (312) are staggered, and guide oblique teeth (3121) are evenly distributed on both sides of the guide fins (312). A condensed water discharge groove (3122) is opened below the side wall of the guide fins (312) on one side.

10. The environmentally friendly high uniformity impregnation and drying equipment according to claim 7, characterized in that: The inner diameter of one end of the central fixed tube (32) connected to the cooling air injection tube (25) is smaller than the inner diameter of one end of the central fixed tube (32) connected to the moist hot air discharge tube (23); hot air heat dissipation grooves (321) are symmetrically provided on both sides of the inner wall of the central fixed tube (32); a Y-shaped condensation water pipe (322) is fixedly installed on the top of the inner wall of the central fixed tube (32); a semi-enclosed water pipe (323) matched with the Y-shaped condensation water pipe (322) is fixedly installed on the inner surface of the bottom of the central fixed tube (32); the side of the semi-enclosed water pipe (323) close to the cooling air injection tube (25) is open; dispersion fins (324) are symmetrically fixedly installed on both sides of the outer surface of the semi-enclosed water pipe (323); the positions of the dispersion fins (324) correspond one-to-one to the positions of the hot air heat dissipation grooves (321).

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