Foil drying equipment capable of accelerating water vapor circulation
By installing exhaust and air intake devices inside the drying oven and using heating elements to circulate the heated air, the problems of slow water vapor flow and foil quality degradation in the drying oven are solved, achieving efficient drying and quality assurance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-03-24
AI Technical Summary
Under high-speed production conditions, the existing drying ovens cannot keep up with the flow rate of water vapor, resulting in a decrease in the drying effect of the foil. Furthermore, using a fan to extract water vapor will reduce the quality of the foil.
The foil drying equipment adopts accelerated water vapor circulation. By setting up exhaust and air intake devices in the drying oven, the air is heated by heating elements and circulated in the drying oven. Water vapor is drawn out and low-humidity air is introduced into the drying oven, which improves the water vapor circulation speed and avoids the adverse effects of alternating hot and cold on the foil.
It improves the drying speed of the foil, ensures that the quality of the foil is not reduced, saves space, and avoids water vapor condensation and contamination.
Smart Images
Figure CN224034269U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the foil production and processing field, more particularly, to a kind of foil drying equipment of accelerating water vapor flow. BACKGROUND
[0002] The existing formation foil, etching foil production line, after electrolysis, foil will pass through cleaning device, and the foil cleaned is wet, must pass through heating device and dry, usually foil is driven into drying furnace under transmission roll, and water on foil is dried by heating plate in drying furnace.
[0003] With the continuous optimization of formation foil and etching foil production process, the speed of producing foil is significantly improved, and the speed of part production line is even 5 times more than before, which puts higher requirements on the drying capacity of drying furnace. However, the water vapor of existing wet foil is mainly recycled through the recovery pipeline located directly above after being heated by the heating plate of drying furnace, and in this process, the flow of water vapor mainly depends on the natural convection generated by heat effect. Therefore, with the acceleration of production speed, the water vapor flow speed in drying furnace cannot keep up with the production speed, the drying speed is slow, and the drying effect of foil is reduced.
[0004] If air suction machine is used to extract water vapor in drying furnace, the temperature of air entering drying furnace from outside is low, and foil will produce thermal stress due to thermal expansion and cold contraction in the alternating environment, and when the stress is large enough, microcracks may first occur near the interface of foil, which will further expand under the action of temperature alternation, reducing the quality of foil. UTILITY MODEL CONTENTS
[0005] The utility model aims at overcoming the slow drying speed of drying furnace in prior art and the quality reduction of foil caused by using air suction machine to extract water vapor, and provides a kind of foil drying equipment of accelerating water vapor flow, which can accelerate the flow of water vapor in drying furnace, improve the drying speed of foil, and also avoid the quality reduction of foil caused by direct blowing of cold air.
[0006] To solve the above technical problems, the utility model adopts the technical scheme that:
[0007] The utility model provides a foil drying equipment of accelerating water vapor flow, including drying furnace, heating device setting in drying furnace, exhaust device and a plurality of air inlet device are installed in drying furnace, drying furnace is provided with feeding port and discharge port, drying furnace is opened exhaust port, exhaust device is connected with exhaust port, air inlet device is opened air inlet and air outlet, air inlet is communicated to drying furnace outside, air outlet is communicated to drying furnace inside, exhaust port, air inlet and air outlet form ventilation flow channel between them, air inlet device is provided with a plurality of heating piece, heating piece is located between air inlet and air outlet.
[0008] The utility model discloses a foil drying equipment of accelerating water vapor flow, in the drying process of foil, the foil that washes well will enter drying furnace inside from feeding port under the drive of roller, heating device carries out the temperature rise to drying furnace inside, high temperature makes the water vapor evaporation on the foil surface, to realize drying, the water vapor in drying furnace inside can be drawn away by exhaust device, the low humidity air outside drying furnace enters air inlet device under the action of exhaust device, and the air enters drying furnace inside after heating in air inlet device, to accelerate the water vapor circulation in drying furnace, and the water vapor in drying furnace is less, and the drying speed of foil is improved, and the air after heating is close to the temperature in furnace, and will not have the adverse effect to foil, to reduce quality.
[0009] Further, the exhaust device is installed on the top of the drying furnace, and the air inlet device is installed on the bottom of the drying furnace. Since the water vapor rises upward without auxiliary, the exhaust device is arranged on the top of the drying furnace, and the air inlet device is arranged on the bottom, thereby accelerating the water vapor circulation.
[0010] Further, the air inlet device further comprises an air inlet shaft and an air inlet roller, both ends of the air inlet shaft are the air inlets, a ventilation groove is formed in the air inlet shaft, the ventilation groove extends to both ends of the air inlet shaft, both ends of the air inlet shaft extend out of the outer wall of the drying furnace, a perforated portion is arranged on the air inlet shaft, the air inlet roller is uniformly provided with through holes, the through holes are the air outlets, the air inlet roller is sleeved outside the perforated portion and rotationally connected with the air inlet shaft, and the heating pieces are located between the air inlet shaft and the air inlet roller. The air outside first passes through the air inlet groove and the perforations on the perforated portion, is heated by the heating pieces, and then passes through the through holes on the air inlet roller to enter the drying furnace. The air inlet roller rotates relative to the air inlet shaft, can drive the foil by the rotation of the air inlet roller on the air inlet shaft, changes the conveying direction of the foil, and can realize air inlet and transmission at the same time, thereby saving space.
[0011] Further, the heating pieces are annular and uniformly distributed between the air inlet shaft and the air inlet roller. The annular heating pieces heat more uniformly, and the air temperature is more average.
[0012] Further, the air inlet shaft is provided with a filter screen at both ends in the axial direction. The filter screen can filter the air entering the air inlet device, so that the air inlet device is not blocked by foreign matters in the air for a long time, and the maintenance is not inconvenient.
[0013] Further, the heating device comprises a plurality of heating plates, and the heating surfaces of the heating plates are parallel to the surface of the foil. The area of the foil subjected to the heating is larger and uniform, so that the drying effect of the foil is better.
[0014] Further, the heating plate comprises a first heating plate, a second heating plate and a third heating plate which are parallel to each other, the first heating plate and the second heating plate are fixed to the side walls on opposite sides of the drying furnace respectively, and the third heating plate is fixed to the top of the drying furnace and located between the feeding port and the discharging port. When the foil enters the drying furnace from the feeding port, the two sides of the foil are subjected to the heating of the first heating plate and the third heating plate respectively, and when the foil passes through the air inlet roller, the conveying direction of the foil is changed, and the two sides of the foil are subjected to the heating of the second heating plate and the third heating plate, so that the space in the drying furnace is utilized to a greater extent to heat the foil.
[0015] Further, the air exhaust device comprises an air exhaust fan, the top of the drying furnace is provided with an air exhaust cover, the exhaust port is located at the top of the air exhaust cover, the exhaust port is connected with the air exhaust fan, and the inner diameter of the air exhaust cover gradually decreases from bottom to top. The air exhaust cover can guide the water vapor and accelerate the extraction of the water vapor, so that the condensation of the water vapor is avoided.
[0016] Further, the feeding port and the discharging port are located on the air exhaust cover and are in the shape of a long strip, and the inner wall of the air exhaust cover is further provided with two baffles, one of which is located between the feeding port and the exhaust port, and the other of which is located between the discharging port and the exhaust port. The two baffles block the feeding port and the discharging port respectively, so that the air sucked into the drying furnace from the feeding port and the discharging port is reduced.
[0017] Further, the air exhaust device is further provided with a recovery pipe which is connected with the air outlet end of the air exhaust fan. The recovery pipe can absorb the water vapor, so that the emission of the water vapor is avoided and the working environment is not polluted.
[0018] Compared with the prior art, the utility model has the advantages that:
[0019] 1. The air exhaust device can exhaust the water vapor in the drying furnace, the air outside the drying furnace enters the drying furnace from the air inlet device, so that the circulation of the water vapor in the drying furnace is accelerated, the drying speed of the foil is improved, the air heated by the heating element is close to the temperature in the furnace, and the foil is not adversely affected, so that the quality of the foil is reduced.
[0020] 2. The design of the air intake shaft and air intake roller can both enable air intake and serve as a transmission function, while saving space.
[0021] 3. The exhaust hood can guide water vapor and accelerate its extraction, preventing condensation. Attached Figure Description
[0022] Figure 1 A schematic diagram of a foil drying device for accelerating water vapor circulation;
[0023] Figure 2 This is a schematic diagram of the air intake device;
[0024] Figure 3 This is a schematic diagram of the internal structure of the air intake device;
[0025] Figure 4 This is a schematic diagram of the air inlet shaft.
[0026] Figure 5 This is a schematic diagram of the internal structure of the air inlet shaft;
[0027] Figure 6 This is a schematic diagram of the exhaust hood.
[0028] In the attached diagram: 100, drying oven; 110, feed inlet; 120, discharge outlet; 130, exhaust outlet; 140, exhaust hood; 150, baffle; 200, heating device; 210, first heating plate; 220, second heating plate; 230, third heating plate; 300, exhaust device; 310, exhaust fan; 320, recovery pipe; 400, air inlet device; 410, air inlet; 420, air outlet; 430, heating element; 440, air inlet shaft; 441, ventilation groove; 442, filter screen; 443, opening; 444, bearing; 450, air inlet roller; 500, foil. Detailed Implementation
[0029] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0030] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0031] Example 1
[0032] A foil drying device that accelerates the flow of water vapor, such as Figures 1-5 As shown, the system includes a drying oven 100, a heating device 200 disposed within the drying oven 100, an exhaust device 300 mounted on the top of the drying oven 100, and two air inlets 400 mounted on the bottom of the drying oven 100. The drying oven is provided with a feed inlet 110, a discharge outlet 120, and an exhaust outlet 130. The exhaust device 300 is connected to the exhaust outlet 130. The air inlets 400 have an air inlet 410 and an air outlet 420. An air passage is formed between the exhaust outlet 130, the air inlet 410, and the air outlet 420. In this embodiment, each air inlet 400 includes an air inlet shaft 440, an air inlet roller 450, and three heating elements 430. The air inlet shaft 440... The air inlet shaft 440 has air inlets 410 at both ends. A ventilation groove 441 is provided inside the air inlet shaft 440, which extends to both ends of the air inlet shaft 440. Both ends of the air inlet shaft 440 extend to the outer wall of the drying oven 100. A filter screen 442 is provided at both ends of the air inlet shaft 440 in the axial direction. An opening 443 is provided on the air inlet shaft 440. The air inlet roller 450 has through holes evenly distributed, which are air outlets 420. The air inlet roller 450 is fitted outside the opening 443 and is rotatably connected to the air inlet shaft 440 through a bearing 444. A heating element 430 is evenly distributed between the air inlet shaft 440 and the air inlet roller 450. In this embodiment, the heating element 430 is a ring-shaped PTC heater.
[0033] The working principle of this embodiment is as follows:
[0034] This utility model discloses a foil drying device that accelerates the flow of moisture. During the drying process of foil 500, the cleaned foil 500 is driven by the feeding roller and enters the drying oven 100 from the feeding port 110. The heating device 200 heats the inside of the drying oven 100, and the high temperature causes the moisture on the surface of the foil 500 to evaporate, thereby achieving drying. The exhaust device 300 can remove the moisture inside the drying oven 100. Under the action of the exhaust device 300, the low humidity air outside the drying oven 100 enters the air intake device 400 through the air intake shaft 440, is heated by the heating element 430, and then enters the drying oven 100 through the air intake roller 450, thereby accelerating the flow of moisture inside the drying oven 100. With less moisture inside the drying oven 100, the drying speed of the foil 500 is increased. The heated air is close to the temperature inside the oven and will not have an adverse effect on the foil 500, thereby reducing the quality of the foil 500.
[0035] The beneficial effects of this embodiment are as follows:
[0036] The exhaust device 300 can remove the moisture inside the drying oven 100. Air from outside the drying oven 100 enters the drying oven 100 through the air inlet device 400, thereby accelerating the circulation of moisture inside the drying oven 100. With less moisture inside the drying oven 100, the drying speed of the foil 500 is increased. The air heated by the heating element 430 is close to the temperature inside the oven and will not have an adverse effect on the foil 500, thus reducing the quality of the foil 500. The air inlet roller 450 can both introduce air and play a transmission role, saving more space. The annular heating element 430 heats more evenly, making the air temperature more uniform. The filter screen 442 can filter the air entering the air inlet device 400 to prevent long-term accumulation of foreign objects and blockage.
[0037] Example 2
[0038] This embodiment is a second embodiment of a foil drying device for accelerating water vapor circulation. This embodiment is similar to Embodiment 1, except that, as shown in the example... Figure 1 As shown, in this embodiment, the air intake device 400 does not include the air intake shaft 440 and the air intake roller 450. The air intake device 400 is an air intake pipe set at the bottom of the drying oven 100. A heating element 430 is set inside the air intake pipe. The air passing through the air intake pipe will be heated by the heating element 430. Compared with the first embodiment, this embodiment has a simpler structure. However, the air intake device 400 in this embodiment cannot simultaneously achieve the functions of transmission and air intake.
[0039] The remaining working principles of this embodiment are the same as those of Embodiment 1.
[0040] Example 3
[0041] This embodiment is a third embodiment of a foil drying device for accelerating water vapor circulation. This embodiment is similar to Embodiment 1, except that, as shown in the following... Figure 1 As shown, the heating device 200 includes a first heating plate 210, a second heating plate 220, and a third heating plate 230 that are parallel to each other. The first heating plate 210, the second heating plate 220, and the third heating plate 230 are all arranged vertically and their heating surfaces are all parallel to the surface of the foil. The first heating plate 210 and the second heating plate 220 are respectively fixed to the side walls of opposite sides of the drying oven 100. The third heating plate 230 is fixed to the top of the drying oven 100 and is located between the feed inlet 110 and the discharge outlet 120. The distance between the first heating plate 210 and the third heating plate 230 is equal to the distance between the second heating plate 220 and the third heating plate 230. The vertical extension of the third heating plate 230 passes through the midpoint of the line connecting the two air inlet rollers 450.
[0042] The working principle of this embodiment is as follows:
[0043] When the foil 500 is fed downwards in a vertical direction, it is located between the first heating plate 210 and the third heating plate 230. Both sides of the foil are heated by the first heating plate 210 and the third heating plate 230 at the same time. After the foil 500 passes through the two air inlet rollers 450, the conveying direction will change. At this time, the foil 500 is located between the second heating plate 220 and the third heating plate 230 in the drying oven 100 and is fed upwards in a vertical direction. The second heating plate 220 and the third heating plate 230 heat both sides of the foil at the same time, making full use of the space in the drying oven 100 to dry the foil 500.
[0044] The remaining working principles of this embodiment are the same as those of Embodiment 1.
[0045] Furthermore, the number and location of the heating plates can be changed according to actual needs.
[0046] Example 4
[0047] This embodiment is a third embodiment of a foil drying device for accelerating water vapor circulation. This embodiment is similar to Embodiment 1, except that, as shown in the following... Figure 1 and Figure 6As shown, the air extraction device 300 comprises an air extractor 310 and a recovery pipe 320, the top of the drying furnace 100 is provided with an air extraction cover 140, an air outlet is located at the top of the air extraction cover 140, the air outlet 130 is connected with the air extractor 310, the feeding port 110 and the discharging port 120 are both located on the air extraction cover 140 and are in the shape of a long strip, the inner wall of the air extraction cover 140 is further provided with two baffles 150, one of the baffles 150 is located between the feeding port 110 and the air inlet 120, and the other baffle 150 is located between the discharging port 110 and the air inlet 120, the two baffles 150 do not hinder the conveying route of the foil 500, and the recovery pipe 320 is connected with the air outlet end of the air extractor 310.
[0048] The working principle of the embodiment is as follows:
[0049] The water vapor enters the air extraction cover 140 from the drying furnace 100 under the action of the air extractor 310 and enters the recovery pipe 330 through the air extractor 310, the setting of the air extraction cover 140 can guide the water vapor and accelerate the extraction of the water vapor, so that the condensation of the water vapor is avoided, the two baffles 150 block the feeding port 110 and the discharging port 120 respectively, so that the air extracted from the feeding port 110 and the discharging port 120 into the drying furnace 100 is reduced, and the recovery pipe 320 can avoid the emission of the water vapor, so that the working environment is not polluted.
[0050] The remaining working principle of the embodiment is the same as that of the first embodiment.
[0051] In the specific contents of the above specific embodiments, any inconsistent combination of technical features can be combined, in order to make the description simple, the above technical features are not described all possible combinations, however, as long as the combination of these technical features does not exist, it should be considered that the scope of the present application is recorded.
[0052] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not a limitation on the embodiments of the present application. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims
1. A foil drying apparatus for accelerating water vapor flow, comprising a drying furnace (100) and a heating device (200) provided in the drying furnace (100), the drying furnace (100) being provided with a feeding port (110) and a discharging port (120), characterized in that, The drying furnace (100) is provided with an exhaust device (300) and a plurality of air inlet devices (400) arranged in the drying furnace (100), the drying furnace (100) is provided with an exhaust port (130), the exhaust device (300) is connected with the exhaust port (130), the air inlet device (400) is provided with an air inlet port (410) and an air outlet port (420), the air inlet port (410) is communicated with the outside of the drying furnace (100), the air outlet port (420) is communicated with the inside of the drying furnace (100), an air flow channel is formed between the exhaust port (130), the air inlet port (410) and the air outlet port (420), and the air inlet device (400) is provided with a plurality of heating elements (430), and the heating elements (430) are arranged between the air inlet port (410) and the air outlet port (420).
2. The foil drying apparatus of claim 1, wherein, The exhaust device (400) is arranged on the top of the drying furnace (100), and the air inlet device (400) is arranged on the bottom of the drying furnace (100).
3. The foil drying apparatus of claim 2, wherein The air inlet device (400) is further provided with an air inlet shaft (440) and an air inlet roller (450), the air inlet shaft (440) is provided with the air inlet port (410) at both ends, the air inlet shaft (440) is internally provided with an air passage (441) extending to both ends of the air inlet shaft (440), both ends of the air inlet shaft (440) extend to the outer wall of the drying furnace (100), the air inlet shaft (440) is provided with an opening part (443), the air inlet roller (450) is uniformly provided with a plurality of through holes, the through holes are the air outlet ports (420), the air inlet roller (450) is sleeved on the opening part (443) and rotationally connected with the air inlet shaft (440), and the heating elements (430) are arranged between the air inlet shaft (440) and the air inlet roller (450).
4. The foil drying apparatus of claim 3, wherein The heating elements (430) are annular and uniformly arranged between the air inlet shaft (440) and the air inlet roller (450).
5. The foil drying apparatus of claim 4, wherein the foil drying apparatus is configured to accelerate the flow of water vapor through the foil drying apparatus. Both ends of the air inlet shaft (440) in the axial direction are provided with filter screens (442).
6. The foil drying apparatus of claim 3, wherein the foil drying apparatus is configured to accelerate the flow of water vapor through the foil drying apparatus. The heating device (200) comprises a plurality of heating plates, and heating surfaces of the heating plates are parallel to surfaces of the foils.
7. The foil drying apparatus of claim 6, wherein the foil drying apparatus is configured to accelerate the flow of water vapor through the foil drying apparatus. The heating plates comprise first, second and third heating plates (210, 220 and 230) parallel to each other, the first and second heating plates (210 and 220) are fixed to opposite side walls of the drying furnace (100), and the third heating plate (230) is fixed to the top of the drying furnace (100) and located between the feeding port (110) and the discharging port (120).
8. A foil drying apparatus for accelerating water vapor flow according to any one of claims 1 to 7, characterized in that, The exhaust device (300) comprises an exhaust fan (310), the top of the drying furnace (100) is provided with an exhaust cover (140), the exhaust port (130) is located at the top of the exhaust cover (140), the exhaust port (130) is connected with the exhaust fan (310), and the inner diameter of the exhaust cover (140) gradually decreases from bottom to top.
9. The foil drying apparatus of claim 8, wherein, The feeding port (110) and the discharging port (120) are both located on the exhaust hood (140) and are in the shape of a long strip, and the inner wall of the exhaust hood (140) is further provided with two baffles (150), one of which is located between the feeding port (110) and the exhaust port (130), and the other is located between the discharging port (120) and the exhaust port (130).
10. The foil drying apparatus of claim 9, wherein the foil drying apparatus is configured to accelerate the flow of water vapor through the foil drying apparatus. The exhaust device (300) is further provided with a recovery pipe (320) connected with the air outlet end of the exhaust fan (310).