Drying equipment for glass fiber production and drying method thereof

Abstract

The invention belongs to the technical field of glass fiber production, and particularly relates to drying equipment for glass fiber production and a drying method thereof.The drying equipment comprises a first drying component, a second drying component, a third drying component, a dehumidifier and a temperature regulator; a group of dehumidifiers and a group of temperature regulators are respectively arranged between the third drying component and the second drying component and between the second drying component and the first drying component, so that water vapor in used hot air is absorbed by the dehumidifiers; and then the used hot air with the high temperature is adjusted into the hot air with the low temperature through the temperature adjuster to be continuously put into use, so that the utilization rate of the hot air is greatly increased, and the energy input needed by the drying equipment is saved.

Description

Technical Field

[0001] The present invention belongs to the technical field of fiberglass production, and specifically relates to a drying device and a drying method for fiberglass production. Background Art

[0002] Drying fiberglass after impregnation is a key step affecting product performance, and fine control is required in combination with the characteristics of the slurry and process requirements. The following are the core issues that need attention and corresponding measures: 1. Temperature range selection: Determine the drying temperature according to the thermal stability of the impregnated material (such as resin or sizing agent). For example, the temperature of epoxy film-forming agents does not exceed 150°C to avoid a decrease in bonding performance caused by molecular chain breakage; 2. Uniform heating and gradient temperature rise: Adopt segmented temperature rise to avoid local overheating and ensure that the slurry is fully cured from the inside out; 3. Optimization of drying duration: Too short a time will result in incomplete curing of the slurry, and too long a time may cause fiber embrittlement. The optimal duration needs to be determined through experiments, usually 1 - 3 hours; However, the existing fiberglass drying equipment does not clearly segment the drying temperature, so that the drying temperature of fiberglass after impregnation cannot be accurately controlled, and thus the drying effect of fiberglass at each stage cannot be guaranteed; at the same time, the existing drying equipment does not make full use of the hot air for drying, resulting in waste of energy, and thus a large amount of energy is wasted during the entire drying process. Summary of the Invention

[0003] In order to make up for the deficiencies of the existing technology, the present invention provides a drying device and a drying method for fiberglass production. The present invention mainly solves the problems that the existing fiberglass drying equipment does not clearly segment the drying temperature, and thus cannot guarantee the drying effect of fiberglass at each stage, and that the existing drying equipment does not make full use of the hot air for drying, resulting in waste of energy.

[0004] The technical solution adopted by the present invention to solve its technical problems is: The present invention provides a drying device for fiberglass production, including a first drying component, a second drying component, a third drying component, a dehumidifier, and a temperature regulator; an air inlet channel is provided at the discharge end of the third drying component; the feed end of the third drying component conveys hot air to the discharge end of the second drying component through a set of the dehumidifier and the temperature regulator in sequence; the feed end of the second drying component conveys hot air to the discharge end of the first drying component through another set of the dehumidifier and the temperature regulator; the dehumidifier is used to absorb the water vapor in the hot air; the temperature regulator is used to adjust the temperature of the hot air.

[0005] Preferably, the drying equipment for glass fiber production further includes conveying rollers, reversing rollers, winding rollers, and a support frame; the first drying component, the second drying component, and the third drying component are stacked vertically in sequence and fixedly connected to the support frame; the reversing roller and the winding roller are sequentially arranged around the discharge end of the third drying component; the winding roller is used for winding the dried glass fiber cloth; the reversing roller and the winding roller are connected to the support frame through brackets; a conveying roller is arranged between the feed end of the third drying component and the discharge end of the second drying component, and between the feed end of the second drying component and the discharge end of the first drying component respectively.

[0006] Preferably, the temperature regulator includes a first temperature sensor, a second temperature sensor, a cooler, a conversion channel, and a controller; the first temperature sensor is arranged at the inlet of the conversion channel, the second temperature sensor is arranged at the outlet of the conversion channel, and the cooler is inside the conversion channel; the first temperature sensor, the second temperature sensor, and the cooler are all connected to the controller through electrical signals.

[0007] Preferably, the cooler includes cooling tubes, diversion openings, and cooling fans; the conversion channel is penetrated by the evenly arranged cooling tubes; one end of the cooling tube is provided with the diversion opening; the diversion opening is in a horn shape; the cooling fan is arranged on one side of the diversion opening; the cooling fan is fixedly connected to the outer wall on one side of the conversion channel.

[0008] Preferably, flow restrictor plates are arranged at the air inlet channels and air outlet channels of the third drying component and the air inlet channels and air outlet channels of the second drying component; the flow restrictor plates are used for restricting the flow rate of hot air.

[0009] Preferably, the first drying component includes an upper air delivery cavity, a lower air delivery cavity, an air equalizing plate, and an air delivery channel; the upper air delivery cavity and the lower air delivery cavity are arranged at intervals up and down; air outlet holes are evenly arranged at intervals on the opposite surfaces of the upper air delivery cavity and the lower air delivery cavity; the air equalizing plates are arranged in both the upper air delivery cavity and the lower air delivery cavity; the air equalizing plates are used for evenly dispersing the hot air flowing out of the upper air delivery cavity and the lower air delivery cavity; the air delivery channel connects the upper air delivery cavity and the lower air delivery cavity with the outlet of the temperature regulator.

[0010] Preferably, no baffle is arranged at one end of the upper air delivery cavity and the lower air delivery cavity away from the air delivery channel, and a diversion channel is connected to the outside of this end.

[0011] Preferably, air outlet holes are arranged on both the upper and lower surfaces of the diversion channel, and the diameters of the air outlet holes gradually increase evenly along the outlet direction of the diversion channel.

[0012] Preferably, the air - equalizing plate is a mesh plate structure woven from asbestos fibers or metal wires.

[0013] A drying method for glass fiber production includes the following steps: S1: Feed the glass fiber cloth after sizing treatment into the diversion channel for pre - drying and pre - heating. The temperature of the hot air in the diversion channel gradually and uniformly increases between 20 - 50°C. S2: Then the glass fiber cloth enters the first drying component for drying and film - forming. In the first drying component, the glass fiber cloth is dried from top and bottom through the relatively arranged upper air - conveying cavity and lower air - conveying cavity. The temperature of the hot air in the first drying component ranges between 50 - 60°C. S3: Then the glass fiber cloth enters the second drying component for drying and shaping. In the second drying component, the glass fiber cloth is dried along the length direction by the slowly and uniformly flowing hot air. The temperature of the hot air in the second drying component ranges between 100 - 110°C. S4: Then the glass fiber cloth enters the third drying component for drying and curing. In the third drying component, the glass fiber cloth is dried along the length direction by the slowly and uniformly flowing hot air. The temperature of the hot air in the third drying component ranges between 120 - 180°C. S5: Then the glass fiber cloth passes through the reversing roller and is wound on the winding roller.

[0014] The beneficial effects of the present invention are as follows: 1. In the present invention, the sized glass fiber cloth is successively dried through the first drying component, the second drying component, and the third drying component. The drying temperatures of the first drying component, the second drying component, and the third drying component continuously increase in sequence. Drying the sized glass fiber cloth through multiple temperature gradients can not only make the sized slurry more uniform and beautiful, but also make the sized slurry fully cured from the inside out, thereby improving the processing quality of the glass fiber cloth. Moreover, in this solution, a set of dehumidifier and temperature regulator are respectively arranged between the third drying component and the second drying component, and between the second drying component and the first drying component. Then, the dehumidifier absorbs the water vapor in the already - used hot air, and the temperature regulator adjusts the already - used hot air with a higher temperature to hot air with a lower temperature and continues to put it into use. Thereby, the utilization rate of the hot air is greatly improved, and the energy input required for the drying equipment is saved. 2. In the present invention, the first temperature sensor and the second temperature sensor are used to detect the temperature of the hot air passing through the conversion channel and transmit the temperature data to the controller. The controller then dynamically adjusts the power of the cooler through the PID algorithm, thereby adjusting the hot air at the inlet of the conversion channel to the hot air at the required temperature through the cooler, and thus meeting the requirements of the subsequent drying components for the drying temperature. In this solution, by adopting dual-sensor feedback, the anti-interference ability can be improved, the drying temperature of the subsequent drying components can be ensured to be more stable, and the drying effect of the fiberglass cloth can be improved; 3. The present invention connects the outlet of the temperature regulator below the second drying component to the upper air delivery cavity and the lower air delivery cavity through the air delivery channel, so that the hot air used by the second drying component can be conveyed into the upper air delivery cavity and the lower air delivery cavity. Then, the hot air flows out from the air delivery holes after passing through the air distribution plate. Through the relatively arranged upper air delivery cavity and the lower air delivery cavity, the fiberglass cloth can be dried from above and below. Moreover, the slow flow rates of the hot air for drying from above and below can cancel each other out. Before the slurry on the surface of the fiberglass cloth is dried into a film, it can be dried by the hot air with a low flow rate, a stable flow direction and the flow directions canceling each other out, preventing the flow rate and flow direction of the hot air from blowing the slurry on the surface of the fiberglass cloth, making the thickness of the slurry on the surface of the fiberglass cloth more uniform and the surface more beautiful, and improving the drying quality of the fiberglass cloth; 4. The present invention does not provide a baffle at one end of the upper air delivery cavity and the lower air delivery cavity away from the air delivery channel, so that this end is open. The hot air after the drying treatment in the first drying component flows out through this end. The flowing-out hot air needs to flow along the diversion channel for a certain distance, thereby preheating the fiberglass cloth inside the diversion channel, enabling the fiberglass cloth to be preheated at a lower temperature, enabling the slurry on the surface of the fiberglass cloth to be dried at a lower temperature, enabling the slurry on the surface of the fiberglass cloth to be dried and solidified evenly from the inside to the outside, improving the drying effect of the fiberglass cloth, and further improving the utilization rate of the hot air. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the drawings.

[0016] Figure 1 is the overall structural schematic diagram of the drying equipment of the present invention; Figure 2 is the internal structural schematic diagram of the drying equipment of the present invention; Figure 3 is the internal sectional view of the drying equipment of the present invention; Figure 4 is Figure 3 the partial enlarged view at A in Figure 5 is Figure 3Partial enlarged view at B in the [Chinese context]; Figure 6 It is a schematic diagram of the internal structure of the dehumidifier and temperature regulator in the first perspective of the present invention; Figure 7 It is a schematic diagram of the internal structure of the dehumidifier and temperature regulator in the second perspective of the present invention; Figure 8 It is a schematic diagram of the overall structure of the dehumidifier and temperature regulator in the present invention; Figure 9 It is a schematic diagram of the structure of the diversion channel in the present invention; In the figure: the first drying component 1, the upper air delivery cavity 11, the lower air delivery cavity 12, the air equalizing plate 13, the air delivery channel 14, the diversion channel 15, the air outlet hole 151, the second drying component 2, the third drying component 3, the baffle 31, the dehumidifier 4, the temperature regulator 5, the cooler 53, the cooling pipe 531, the diversion port 532, the cooling fan 533, the conversion channel 54, the conveying roller 6, the reversing roller 7, the winding roller 8, the support frame 9. Detailed implementation manners

[0017] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0018] As Figures 1 to 5 shown, a drying device for glass fiber production includes a first drying component 1, a second drying component 2, a third drying component 3, a dehumidifier 4 and a temperature regulator 5; an air inlet channel is provided at the discharge end of the third drying component 3; the feed end of the third drying component 3 conveys hot air to the discharge end of the second drying component 2 through a set of the dehumidifier 4 and the temperature regulator 5 in sequence; the feed end of the second drying component 2 conveys hot air to the discharge end of the first drying component 1 through another set of the dehumidifier 4 and the temperature regulator 5; the dehumidifier 4 is used to absorb the water vapor in the hot air; the temperature regulator 5 is used to adjust the temperature of the hot air.

[0019] The glass fiber cloth after dipping slurry is dried successively through the first drying component 1, the second drying component 2, and the third drying component 3. The drying temperatures of the first drying component 1, the second drying component 2, and the third drying component 3 increase successively, being 50 - 60 °C, 100 - 110 °C, and 120 - 180 °C respectively. Drying the glass fiber cloth after dipping slurry through multiple temperature gradients can not only make the slurry after dipping more uniform and beautiful, but also enable the slurry after dipping to be fully cured from the inside out, thereby improving the processing quality of the glass fiber cloth. Moreover, in this solution, a set of dehumidifier 4 and temperature regulator 5 are respectively arranged between the third drying component 3 and the second drying component 2, and between the second drying component 2 and the first drying component 1. Then, the dehumidifier 4 absorbs the water vapor in the used hot air, and the temperature regulator 5 adjusts the used hot air with a relatively high temperature to hot air with a lower temperature and continues to put it into use, thereby greatly improving the utilization rate of the hot air and saving the energy input required for the drying equipment.

[0020] As Figures 1 to 3 shown, the drying equipment for glass fiber production further includes conveying rollers 6, reversing rollers 7, winding rollers 8, and a support frame 9; the first drying component 1, the second drying component 2, and the third drying component 3 are stacked vertically in sequence and fixedly connected to the support frame 9; a reversing roller 7 and a winding roller 8 are successively arranged on the periphery of the discharge end of the third drying component 3; the winding roller 8 is used for winding the dried glass fiber cloth; the reversing roller 7 and the winding roller 8 are connected to the support frame 9 through brackets; a conveying roller 6 is arranged between the feed end of the third drying component 3 and the discharge end of the second drying component 2, and between the feed end of the second drying component 2 and the discharge end of the first drying component 1.

[0021] In this solution, the length dimensions of the first drying component 1, the second drying component 2, and the third drying component 3 are relatively large. Therefore, if they are distributed in a straight line, it will lead to a large floor area of the entire drying equipment. Therefore, stacking the first drying component 1, the second drying component 2, and the third drying component 3 vertically in sequence can greatly reduce the floor area occupied by the drying equipment. Then, by means of the conveying roller 6, the running direction of the glass fiber cloth is changed, so that it can pass through the first drying component 1, the second drying component 2, and the third drying component 3 in sequence, and then be wound on the winding roller 8 after passing through the reversing roller 7, making the overall structure of the drying equipment relatively compact. Both of the two conveying rollers 6 and the winding roller 8 are driven by motors and rotate synchronously, thus ensuring that there is no relative friction between the slurry on the surface of the glass fiber cloth and the conveying roller 6, preventing the slurry on the surface of the glass fiber cloth that has not been fully dried from being deformed or scratched due to the frictional force, and improving the processing quality of the glass fiber cloth.

[0022] As Figures 5 to 8 shown, the temperature regulator 5 includes a first temperature sensor, a second temperature sensor, a cooler 53, a conversion channel 54 and a controller; the first temperature sensor is arranged at the inlet of the conversion channel 54, the second temperature sensor is arranged at the outlet of the conversion channel 54, and the cooler 53 is inside the conversion channel 54; the first temperature sensor, the second temperature sensor and the cooler 53 are all connected to the controller through electrical signals.

[0023] The first temperature sensor and the second temperature sensor are used to detect the temperature of the hot air passing through the conversion channel 54 and transmit the temperature data to the controller, and the controller dynamically adjusts the power of the cooler 53 through the PID algorithm, so as to adjust the hot air at the inlet of the conversion channel 54 to the hot air with the required temperature after passing through the cooler 53, thereby meeting the requirements of the subsequent drying components for the drying temperature. The specific formula for the dynamic adjustment of the PID algorithm is as follows: The controller collects the inlet temperature (T in ) in real time through the first temperature sensor and the outlet temperature (T out ) in real time through the second temperature sensor, and calculates the actual temperature difference: ΔT = T out- T in Set the target temperature difference as ΔT set (corresponding to the low temperature range requirement), then the error function is: e(t) = ΔT set- ΔT The power P(t) of the cooler 53 is dynamically adjusted through the PID algorithm:

[0024] Where: is the proportional coefficient, which is used to quickly respond to the temperature difference change; is the integral coefficient, which is used to eliminate the steady-state error; is the differential coefficient, which is used to suppress the temperature fluctuation; The above specific coefficients need to be experimentally calibrated according to the power characteristics of the cooler 53, the air flow rate and the heat capacity parameters.

[0025] To ensure the stability of the power adjustment system of the cooler 53, it is necessary to set the power adjustment range: P min ≤ P(t) ≤ P max ; At the same time, a threshold trigger mechanism is adopted: when , start the proportional adjustment; enhance the integral action when the deviation continues to exceed the limit.

[0026] In this solution, by adopting dual-sensor feedback, the anti-interference ability can be improved, ensuring that the drying temperature of the subsequent drying components is more stable, and thus improving the drying effect of the fiberglass cloth.

[0027] As Figures 5 to 8 shown, the cooler 53 includes a cooling pipe 531, a diversion port 532, and a cooling fan 533; the conversion channel 54 is penetrated by the evenly arranged cooling pipes 531; one end of the cooling pipe 531 is provided with the diversion port 532; the diversion port 532 is trumpet-shaped; the cooling fan 533 is arranged on one side of the diversion port 532; the cooling fan 533 is fixedly connected to the outer wall of one side of the conversion channel 54.

[0028] The cooling fan 533 is connected to the controller through an electrical signal. Thus, the controller can adjust the power of the cooling fan 533, thereby adjusting the amount of cold air entering the cooling pipe 531, and further adjusting the temperature of the hot air in the conversion channel 54, so that the temperature of the hot air at the outlet of the conversion channel 54 meets the requirements of the subsequent drying components.

[0029] As Figure 2 and Figure 5 shown, flow restrictor plates 31 are provided at the intake and outlet channels of the third drying component 3 and at the intake and outlet channels of the second drying component 2; the flow restrictor plates 31 are used to limit the flow rate of the hot air.

[0030] The flow restrictor plates 31 can be woven metal mesh plates or metal plates evenly provided with small holes. By providing flow restrictor plates 31 at the intake and outlet channels of the third drying component 3 and at the intake and outlet channels of the second drying component 2, when the hot air enters the third drying component 3 and the second drying component 2, the flow restrictor plates 31 at the intake channels can block the flow of the hot air and at the same time even out the air flow. Also, because the outlet channels of the third drying component 3 and the second drying component 2 are also provided with flow restrictor plates 31, there is resistance when the hot air flows out. As a result, the flow rate of the hot air entering the third drying component 3 and the second drying component 2 is low and the temperature uniformity is good. Thus, when the fiberglass cloth passes through the third drying component 3 and the second drying component 2, the slurry on its surface can be evenly dried, thereby improving the drying quality of the fiberglass cloth.

[0031] As Figures 3 to 5As shown, the first drying component 1 includes an upper air delivery cavity 11, a lower air delivery cavity 12, an air distribution plate 13, and an air delivery channel 14; the upper air delivery cavity 11 and the lower air delivery cavity 12 are arranged at an interval up and down; the surfaces of the upper air delivery cavity 11 and the lower air delivery cavity 12 on the opposite side are evenly spaced with air outlet holes; the air distribution plate 13 is arranged in both the upper air delivery cavity 11 and the lower air delivery cavity 12; the air distribution plate 13 is used for evenly dispersing the hot air flowing out of the upper air delivery cavity 11 and the lower air delivery cavity 12; the air delivery channel 14 connects the upper air delivery cavity 11 and the lower air delivery cavity 12 with the outlet of the temperature regulator 5.

[0032] The outlet of the temperature regulator 5 below the second drying component 2 is connected to the inside of the upper air delivery cavity 11 and the lower air delivery cavity 12 through the air delivery channel 14, so that the hot air after being used by the second drying component 2 can be transported to the inside of the upper air delivery cavity 11 and the lower air delivery cavity 12. Then, the hot air flows out from the air outlet holes after passing through the air distribution plate 13. Then, the glass fiber cloth can be dried from above and below through the relatively arranged upper air delivery cavity 11 and the lower air delivery cavity 12. Then, the slow flow rates of the hot air for drying from above and below also cancel each other out. Then, before the slurry on the surface of the glass fiber cloth is dried into a film, it can be dried by the hot air with a low flow rate, a stable flow direction, and the flow directions canceling each other out. Then, it prevents the flow rate and flow direction of the hot air from blowing the slurry on the surface of the glass fiber cloth. Then, the thickness of the slurry on the surface of the glass fiber cloth is made more uniform and the surface is more beautiful. Then, the drying quality of the glass fiber cloth is improved.

[0033] As Figures 1 to 3 shown, no baffle is provided at one end of the upper air delivery cavity 11 and the lower air delivery cavity 12 away from the air delivery channel 14, and a diversion channel 15 is connected to the outside of this end.

[0034] By not providing a baffle at one end of the upper air delivery cavity 11 and the lower air delivery cavity 12 away from the air delivery channel 14, this end is made open. Then, the hot air after the drying treatment in the first drying component 1 flows out through this end. The flowing out hot air needs to flow along the diversion channel 15 for a certain distance. Then, it preheats the glass fiber cloth inside the diversion channel 15, so that the glass fiber cloth can be preheated at a lower temperature. Then, the slurry on the surface of the glass fiber cloth can be dried at a lower temperature. Then, the slurry on the surface of the glass fiber cloth can be evenly dried and solidified from the inside to the outside, and the drying effect of the glass fiber cloth is improved. And the utilization rate of the hot air is further improved.

[0035] As Figure 9 shown, air outlet holes 151 are provided on both the upper and lower surfaces of the diversion channel 15, and the diameter of the air outlet holes 151 gradually and evenly increases along the outlet direction of the diversion channel 15.

[0036] By setting the diameter of the air outlet holes 151 on the diversion channel 15 to gradually and uniformly increase along the outlet direction of the diversion channel 15, when hot air flows along the diversion channel 15, the hot air diffuses out from the air outlet holes 151. Also, because more heat is lost from the larger air outlet holes 151, the heat of the hot air that the fiberglass cloth contacts after entering from the outlet of the diversion channel 15 gradually increases. As a result, the slurry on the surface of the fiberglass cloth can be dried at a lower and gradually increasing temperature, so that the slurry on the surface of the fiberglass cloth can be evenly dried and cured from the inside out, thereby improving the drying effect of the fiberglass cloth.

[0037] The air distribution plate 13 is a mesh plate structure woven from asbestos fibers or metal wires.

[0038] As Figures 1 to 5 shown, a drying method for fiberglass production includes the following steps: S1: Feed the fiberglass cloth after dipping treatment into the diversion channel 15 for pre-drying, and the temperature of the hot air in the diversion channel 15 gradually and uniformly increases between 20 - 50 °C; S2: Subsequently, the fiberglass cloth enters the first drying component 1 for drying and film-forming. In the first drying component 1, the fiberglass cloth is dried from above and below through the oppositely arranged upper air delivery cavity 11 and lower air delivery cavity 12, and the temperature of the hot air in the first drying component 1 is taken between 50 - 60 °C; S3: Subsequently, the fiberglass cloth enters the second drying component 2 for drying and shaping. In the second drying component 2, the fiberglass cloth is dried along the length direction by the slowly and uniformly flowing hot air, and the temperature of the hot air in the second drying component 2 is taken between 100 - 110 °C; S4: Subsequently, the fiberglass cloth enters the third drying component 3 for drying and curing. In the third drying component 3, the fiberglass cloth is dried along the length direction by the slowly and uniformly flowing hot air, and the temperature of the hot air in the third drying component 3 is taken between 120 - 180 °C; S5: Subsequently, the fiberglass cloth passes through the reversing roller 7 and is wound on the winding roller 8.

[0039] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the purpose of the present invention and the scope protected by the claims. These all fall within the protection scope of the present invention.

Claims

1. A drying device for glass fiber production, characterized in that: It includes a first drying component (1), a second drying component (2), a third drying component (3), a dehumidifier (4) and a temperature regulator (5); an air inlet channel is arranged at the discharge end of the third drying component (3); the feed end of the third drying component (3) conveys hot air to the discharge end of the second drying component (2) by sequentially passing through a group of the dehumidifier (4) and the temperature regulator (5); the feed end of the second drying component (2) conveys hot air to the discharge end of the first drying component (1) by passing through another group of the dehumidifier (4) and the temperature regulator (5); the dehumidifier (4) is used to absorb the water vapor in the hot air; the temperature regulator (5) is used to adjust the temperature of the hot air; The drying equipment for glass fiber production further includes a conveying roller (6), a reversing roller (7), a winding roller (8) and a support frame (9); the first drying component (1), the second drying component (2) and the third drying component (3) are stacked vertically in sequence and fixedly connected to the support frame (9); the reversing roller (7) and the winding roller (8) are sequentially arranged around the discharge end of the third drying component (3); the winding roller (8) is used to wind the dried glass fiber cloth; the reversing roller (7) and the winding roller (8) are connected to the support frame (9) through brackets; a conveying roller (6) is arranged between the feed end of the third drying component (3) and the discharge end of the second drying component (2) and between the feed end of the second drying component (2) and the discharge end of the first drying component (1).

2. The drying equipment for glass fiber production according to claim 1, wherein: The temperature regulator (5) includes a first temperature sensor, a second temperature sensor, a cooler (53), a conversion channel (54) and a controller; the first temperature sensor is arranged at the inlet of the conversion channel (54), the second temperature sensor is arranged at the outlet of the conversion channel (54), and the cooler (53) is inside the conversion channel (54); the first temperature sensor, the second temperature sensor and the cooler (53) are all connected to the controller through electrical signals.

3. A drying device for glass fiber production according to claim 2, characterized in that: The cooler (53) includes a cooling pipe (531), a diversion port (532) and a cooling fan (533); the conversion channel (54) is penetrated by the uniformly arranged cooling pipes (531); one end of the cooling pipe (531) is provided with the diversion port (532); the diversion port (532) is in a horn shape; the cooling fan (533) is arranged on one side of the diversion port (532); the cooling fan (533) is fixedly connected to the outer wall of one side of the conversion channel (54).

4. A drying device for glass fiber production according to claim 1, wherein: Choke plates (31) are arranged at the air inlet channel and the air outlet channel of the third drying component (3) and at the air inlet channel and the air outlet channel of the second drying component (2); the choke plates (31) are used to limit the flow rate of the hot air.

5. A drying device for glass fiber production according to claim 1, characterized in that: The first drying component (1) includes an upper air delivery cavity (11), a lower air delivery cavity (12), an air distribution plate (13), and an air delivery channel (14); the upper air delivery cavity (11) and the lower air delivery cavity (12) are arranged at an upper and lower interval; air delivery holes are uniformly arranged at intervals on the opposite surfaces of the upper air delivery cavity (11) and the lower air delivery cavity (12); the air distribution plate (13) is arranged in both the upper air delivery cavity (11) and the lower air delivery cavity (12); the air distribution plate (13) is used for uniformly dispersing the hot air flowing out of the upper air delivery cavity (11) and the lower air delivery cavity (12); the air delivery channel (14) connects the upper air delivery cavity (11) and the lower air delivery cavity (12) with the outlet of the temperature regulator (5).

6. A drying device for glass fiber production according to claim 5, characterized in that: At one end of the upper air delivery cavity (11) and the lower air delivery cavity (12) far from the air delivery channel (14), no baffle is provided, and a diversion channel (15) is connected to the outside of this end.

7. A drying device for glass fiber production according to claim 6, characterized in that: Air outlet holes (151) are provided on both the upper and lower surfaces of the diversion channel (15), and the diameters of the air outlet holes (151) gradually increase uniformly along the outlet direction of the diversion channel (15).

8. A drying device for glass fiber production according to claim 5, characterized in that: The air distribution plate (13) is a mesh plate structure woven from asbestos fibers or metal wires.

9. A drying method for glass fiber production, applicable to the drying equipment for glass fiber production described in any one of claims 1-8, characterized in that: It includes the following steps: S1: Send the glass fiber cloth after sizing treatment into the diversion channel (15) for pre-drying, and the temperature of the hot air in the diversion channel (15) gradually increases uniformly between 20 - 50 °C. S2: Subsequently, the glass fiber cloth enters the first drying component (1) for drying and film formation. In the first drying component (1), the glass fiber cloth is dried from above and below through the relatively arranged upper air delivery cavity (11) and lower air delivery cavity (12), and the temperature of the hot air in the first drying component (1) is taken between 50 - 60 °C. S3: Subsequently, the glass fiber cloth enters the second drying component (2) for drying and shaping. In the second drying component (2), the glass fiber cloth is dried along the length direction by the slowly and uniformly flowing hot air, and the temperature of the hot air in the second drying component (2) is taken between 100 - 110 °C. S4: Subsequently, the glass fiber cloth enters the third drying component (3) for drying and curing. In the third drying component (3), the glass fiber cloth is dried along the length direction by the slowly and uniformly flowing hot air, and the temperature of the hot air in the third drying component (3) is taken between 120 - 180 °C. S5: Subsequently, the glass fiber cloth passes through the reversing roller (7) and is wound on the winding roller (8).

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