Drainage device for molten glass and glass fiber production system

Abstract

The present application relates to the field of glass fiber manufacturing, and specifically to a drainage device for molten glass and a glass fiber production system. The drainage device comprises a support frame and a drainage tube provided on the support frame, wherein the drainage tube is connected to a heat insulation pressure-bearing device, the heat insulation pressure-bearing device is movably connected to the support frame, the heat insulation pressure-bearing device can heat the drainage tube, and when the heat insulation pressure-bearing device drives the drainage tube to move, the drainage tube can be replaced. In the present application, the provided heat insulation pressure-bearing device can heat glass melt at an outlet end of the drainage tube while ensuring control over the temperature of the glass melt; by means of a heating member and a temperature measuring member provided, the temperature of the glass melt can be monitored and adjusted in real time, such that the temperature of the glass melt can meet the requirements for hot-melt drawing of glass fibers, thereby ensuring production efficiency and product quality.

Description

A device for guiding hot melt glass and a glass fiber production system

[0001] Cross-reference of related applications

[0002] This application claims priority to Chinese Patent Application No. 202411926382.0, filed on December 25, 2024, entitled "Drainage Device for Hot Melt Glass and Glass Fiber Production System", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of glass fiber manufacturing, specifically to a flow guide device for hot melt glass and a glass fiber production system. Background Technology

[0004] Glass fiber is a high-performance inorganic non-metallic material with advantages such as good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength. It is often used in aerospace, automotive, photovoltaic and other fields. The production of glass fiber mainly includes a series of steps such as material preparation, melting, drawing and post-processing. Melting is the process of melting the raw materials into glass liquid at high temperature and then transferring the glass liquid to the drawing machine for processing through a diversion device.

[0005] Existing flow guiding devices are mostly flow guiding pipes or flow guiding channels. During the transportation of high-temperature molten glass, heat loss occurs, causing the molten glass temperature to drop. This makes it difficult for the molten glass to reach the temperature required for hot-melt drawing of glass fibers by the time it reaches the drawing machine, directly affecting the production quality and efficiency of glass fibers. In addition, after prolonged use, the molten glass may solidify at the outlet of the flow guiding device. Since the solidified molten glass can completely or partially block the outlet, the entire flow guiding device needs to be replaced to continue production. However, replacing the entire flow guiding device is a cumbersome process, and frequent replacements increase production costs. Furthermore, flow guiding devices often have a limited lifespan, and having to replace them due to outlet blockage further wastes resources. Finally, existing flow guiding devices can cause molten glass to accumulate during flow, leading to slow or blocked flow, thus affecting subsequent production. Summary of the Invention

[0006] To address the problems mentioned in the prior art, this application proposes a flow guiding device for molten glass and a glass fiber production system, which can heat the molten glass during transportation to ensure that the temperature of the molten glass reaches the requirements for hot-melt drawing of glass fibers; when the outlet end of the flow guiding device is blocked, the replacement speed can be accelerated, and only the outlet end needs to be replaced; and the accumulation of molten glass is reduced during the flow guiding process.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] Firstly, it includes a support and multiple interconnected drainage pipes mounted on the support. The drainage pipes at the ends pass through a heat-insulating and pressure-bearing device and are connected to the support. The heat-insulating and pressure-bearing device and the support are movably connected via a slide rail assembly. The heat-insulating and pressure-bearing device can heat the drainage pipes. When the slide rail assembly moves the heat-insulating and pressure-bearing device, the heat-insulating and pressure-bearing device moves the entire drainage pipe. This allows the drainage pipes connected to the heat-insulating and pressure-bearing device to be replaced without damaging the overall structure of the drainage pipes.

[0009] As an optional improvement to this application, the heat-insulating and pressure-bearing device is sleeved outside the drainage pipe; the heat-insulating and pressure-bearing device includes an outer cylinder, a foam ceramic layer and a first mullite layer connected in sequence from the outside to the inside.

[0010] As an optional improvement to this application, at least one mounting hole is provided on the first mullite layer, and a heating element is provided in the mounting hole.

[0011] As an optional improvement to this application, a temperature measuring element is also provided inside the mounting hole.

[0012] As an optional improvement to this application, the heating element and the temperature measuring element are enclosed by an insulation structure.

[0013] As an optional improvement to this application, the drainage tube includes an outer shell and a second mullite layer connected sequentially from the outside to the inside.

[0014] As an optional improvement to this application, both the inlet and outlet ends of the drainage tube are provided with guide grooves;

[0015] The angle between the guide channel at the inlet end and the horizontal plane is 40-50°;

[0016] The angle between the guide channel at the outlet end and the horizontal plane is 70-80°.

[0017] As an optional improvement to this application, the slide rail assembly includes a slide rail and a slider connected to the slide rail, wherein the slider is connected to a heat-insulating pressure-bearing device.

[0018] As an optional improvement to this application, the bracket includes a connected support column and a seat frame, wherein the height of the support column is adjustable.

[0019] Secondly, this application provides a glass fiber production system, which includes the above-mentioned guiding device for hot melt glass.

[0020] Compared with the prior art, this application achieves the following technical effects:

[0021] This application uses a heat-insulating and pressure-bearing device to heat the molten glass at the outlet of the drain pipe, and also ensures the control of the molten glass temperature. By using the heating element and temperature measuring element, the molten glass temperature can be monitored and adjusted in real time, so that the molten glass temperature can meet the requirements of glass fiber hot-melt drawing, thereby ensuring production efficiency and product quality.

[0022] This application utilizes a sliding rail and a slider to move the heat-insulating pressure-bearing device along the sliding rail. In the event of blockage at the outlet end of the drain tube due to the cooling and solidification of molten glass, the slider moves the heat-insulating pressure-bearing device to pull the outlet section of the drain tube out of the drawing machine. Only the blocked outlet end of the drain tube needs to be replaced, eliminating the need to replace the entire drain tube, which greatly saves material costs, reduces the risk of production interruption, and the entire replacement process is simple.

[0023] In this application, guide channels are provided at the outlet and inlet ends of the drain pipe. The guide channel at the inlet end ensures a fast glass melt transport flow rate, effectively avoiding the problem of glass melt accumulation caused by excessively slow flow rate, and ensuring the continuity and stability of the entire transport process. The guide channel at the outlet end slows down the flow rate of the glass melt, which helps the glass melt stay in the heat-insulating and pressure-bearing device for a longer time, so as to absorb heat more fully and improve the heating effect. It also creates favorable conditions for the subsequent wire drawing process, further improving the quality of the product. Attached Figure Description

[0024] Figure 1 is a schematic diagram of the overall structure of the flow guiding device for glass hot melt of this application;

[0025] Figure 2 is a structural schematic diagram of the heat-insulating pressure-bearing device of this application;

[0026] Figure 3 is a schematic diagram of the slide rail structure of this application.

[0027] Reference numerals: 1. Support column; 2. Seat frame; 3. Drainage pipe; 4. Insulation and pressure bearing device; 5. Slider; 6. Slide rail; 7. First mullite layer; 8. Foam ceramic layer; 9. Outer cylinder; 10. Mounting hole; 11. Second slide rail; 12. First slide rail. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0034] It should also be understood that the terminology used in this application specification is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this application specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0035] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0036] The accompanying drawings illustrate various structural schematics according to embodiments disclosed in this application. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0037] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0038] Example 1

[0039] As shown in Figure 1, the device includes a support frame and multiple connected drainage pipes 3 mounted on the support frame. The drainage pipes 3 at the ends pass through a heat-insulating and pressure-bearing device 4 and are connected to the support frame. The heat-insulating and pressure-bearing device 4 is movably connected to the support frame via a slide rail assembly. The heat-insulating and pressure-bearing device 4 can heat the drainage pipes 3. When the slide rail assembly moves the heat-insulating and pressure-bearing device 4, the heat-insulating and pressure-bearing device 4 moves the drainage pipes 3 as a whole. The drainage pipes 3 connected to the heat-insulating and pressure-bearing device 4 can be replaced without damaging the overall structure of the drainage pipes 3.

[0040] The heat-insulating and pressure-bearing device 4 is sleeved on the outside of the drain pipe 3; the heat-insulating and pressure-bearing device 4 includes an outer cylinder 9, a foam ceramic layer 8 and a first mullite layer 7 connected in sequence from the outside to the inside.

[0041] As shown in Figure 2, in this embodiment, the heat-insulating pressure-bearing device 4 is connected to the slider 5 by screws. The heat-insulating pressure-bearing device 4 is a tubular structure with a through hole in the middle for the drainage pipe 3 to pass through. In this embodiment, the diameter of the through hole matches the diameter of the drainage pipe 3, so that the heat-insulating pressure-bearing device 4 and the drainage pipe 3 fit tightly together, reducing the occurrence of the heating element failing to heat due to excessive gap. In addition, it can ensure that the drainage pipe 3 can be stably fixed in the heat-insulating pressure-bearing device 4 after passing through the through hole. When the heat-insulating pressure-bearing device 4 moves, it drives the connected drainage pipe 3 to move together, which can prevent the drainage pipe 3 from shaking or shifting.

[0042] In this embodiment, the outermost cylinder 9 can be made of heat-resistant steel. Heat-resistant steel has good high-temperature resistance, which can ensure that the heat insulation and pressure bearing device 4 reduces heat loss and ensures heating efficiency when heated. In this embodiment, the outer cylinder 9 is provided with a connecting plate along the axial direction. The connecting plate is provided with several connecting holes for screws or bolts to pass through, so as to connect the heat insulation and pressure bearing device 4 with the slider 5, which is convenient for disassembly and installation.

[0043] In this embodiment, the foam ceramic layer 8 is prepared using a high-temperature lining engraving process, which allows the foam ceramic to be fitted onto the inner wall of the outer cylinder 9. The foam ceramic has heat insulation properties, which can effectively prevent heat transfer and improve heat preservation performance.

[0044] In this embodiment, the first mullite layer 7 is also prepared by high-temperature lining carving process. The first mullite layer 7 and the foam ceramic layer 8 are nested together. Mullite has high melting point and fire resistance properties. Its melting point can reach 1800℃. It can have excellent stability in high-temperature environment and further improve the heat insulation effect.

[0045] At least one mounting hole 10 is provided on the first mullite layer 7, and a heating element is installed inside the mounting hole 10. A temperature measuring element is also installed inside the mounting hole 10. The heating element and the temperature measuring element are covered with an insulation structure.

[0046] As shown in Figure 2, in this embodiment, the first mullite layer 7 is provided with a plurality of mounting holes 10. The mounting holes 10 are semi-circular structures, and the size of the mounting holes 10 matches the size of the heating element and the temperature measuring element, so that the heating element and the temperature measuring element can be installed in the mounting holes 10.

[0047] In this embodiment, the heating element can be a heating rod, and the temperature measuring element can be a thermocouple, but it is not limited to these. Different heating elements and temperature measuring elements can be selected according to actual needs and application scenarios. For example, the heating element can be an electric heating wire, resistance heating, etc., and the temperature measuring element can be a semiconductor sensor, capacitive sensor, etc. There are no restrictions here.

[0048] In this embodiment, five heating rods and two thermocouples may be provided, but this is not the only option. The number of heating rods or thermocouples may be increased or decreased according to actual needs and application scenarios. The heating rods in this embodiment have the following specifications: outer diameter φ20mm, length 3000mm, power supply voltage AC220, power 6.5KW, and when the heating rods are placed in the air, their surface temperature is not lower than 1200℃. The power lead wire of the heating rods is 6000mm long.

[0049] In this embodiment, both the heating rod and the thermocouple are remotely controlled electronically. The heating element and the temperature measuring element are externally wrapped with an insulation structure. This insulation structure is tightly fitted to the heating element and the temperature measuring element to ensure a good insulation effect. Specifically, the insulation structure is an aerogel foam ceramic insulation felt, mainly composed of nano-silica aerogel as the main material, which is composited with foam ceramic or other reinforcing materials through a special process. This structure gives the insulation felt both the excellent thermal insulation properties of aerogel and the strength and stability of foam ceramic.

[0050] The drainage tube 3 includes an outer shell and a second mullite layer connected sequentially from the outside to the inside. As shown in Figure 1, in this embodiment, the outlet end of the drainage tube 3 passes through a through hole in the heat-insulating pressure-bearing device 4, and the portion of the outlet end of the drainage tube 3 extending outside the heat-insulating pressure-bearing device 4 extends into the wire drawing machine.

[0051] In this embodiment, the overall length of the drainage tube 3 can be set according to the application scenario of the glass fiber system, such as 500m, 300m, etc. Therefore, the length of each drainage tube 3 is determined according to the overall length and the number of drainage tubes 3, so the length is not limited here. The outer shell of the drainage tube 3 is made of S310 stainless steel, which has the characteristics of high temperature resistance, corrosion resistance and high strength. Of course, ceramic composite tubes can also be selected, which are mainly made of silicon carbide combined with silicon nitride composite sintering, and have the characteristics of high strength, high stability and long service life.

[0052] In this embodiment, the drainage tube 3 is also lined with a second mullite layer, which can further improve the heat insulation effect. The thickness of the second mullite layer in the drainage tube 3 can be selected as 2-3 mm.

[0053] Both the inlet and outlet ends of the drainage pipe 3 are provided with guide grooves; the angle between the inlet guide groove and the horizontal plane is 40-50°; the angle between the outlet guide groove and the horizontal plane is 70-80°.

[0054] In this embodiment, the guide groove provided at the inlet end of the guide pipe 3 can accelerate the flow of molten glass and prevent the molten glass from accumulating due to excessively slow flow. The guide groove and the guide pipe 3 can be integrally formed for easy processing. The angle between the guide groove and the horizontal plane can be selected as 45°. This angle can ensure that the molten glass enters the guide pipe 3 smoothly, ensuring that the molten glass does not accumulate due to slow flow, and also preventing the temperature from dropping too quickly due to excessive flow due to excessively long guide groove, thus improving the drainage efficiency.

[0055] In this embodiment, the guide channel at the outlet end is set opposite to the guide channel at the inlet end. The guide channel at the outlet end can slow down the flow rate of the molten glass, so that the molten glass stays for a longer time after passing through the heat insulation and pressure bearing device 4, which can further improve the heating effect of the molten glass. Specifically, the angle between the guide channel and the horizontal plane can be selected as 70°, which can reduce the flow rate of the molten glass while avoiding the accumulation of molten glass due to the slow speed.

[0056] The slide rail assembly includes a slide rail 6 and a slider 5 connected to the slide rail 6, wherein the slider 5 is connected to the heat-insulating and pressure-bearing device 4.

[0057] In this embodiment, the slide rail 6 consists of two connected first slide rails 12 and second slide rails 11. The length of the first slide rail 12 is greater than that of the second slide rail 11. The first slide rail 12 has a protrusion along its length. The bottom of the second slide rail 11 is connected to the protrusion, and the top of the second slide rail 11 has a slider 5. In this embodiment, the first slide rail 12 and the second slide rail 11 are connected by the protrusion, which allows the slider 5 to slide smoothly on the second slide rail 11, ensuring the movement accuracy of the slider 5 on the slide rail 6, and reducing the error caused by deformation or unstable connection of the slide rail 6.

[0058] The bracket includes a connected support column 1 and a seat frame 2, wherein the height of the support column 1 is adjustable. In this embodiment, there are three sets of support columns 1, but it is not limited to this. The number of support columns 1 can be increased or decreased according to actual needs. The top of the support column 1 is connected to a seat frame 2 for placing the slide rail 6. The seat frame 2 and the support column 1 are fixedly connected by screws.

[0059] In this embodiment, the height of the support column 1 can be adjusted. When the height of each set of support columns 1 is different, the entire device is tilted, so that the drainage tube 3 on the seat frame 2 is also tilted. The tilt angle is the drainage angle of the drainage tube 3. When in use, the drainage angle can be adjusted as needed. After adjustment, a steel wire rope + pulley mechanism can be used as a traction mechanism to place the drainage tube 3 on the support.

[0060] In this embodiment, the support column 1 has an inner cavity containing a motor. The output end of the motor is connected to a threaded screw. When the motor is powered on and started, its output shaft drives the threaded screw to rotate synchronously for adjustment. An adjusting column extending outwards is also inserted into the support column 1. The other end of the adjusting column is connected to the seat frame 2. The adjusting column has a threaded groove inside that matches the threaded screw. When the threaded screw rotates, the adjusting column moves longitudinally up and down within the inner cavity of the support column 1, achieving a change in the height of the support column 1. The direction of the rise or fall depends on the rotation direction of the motor shaft. In this embodiment, a limiting rod is also provided at the top of the inner cavity of the support column 1 to prevent the adjusting column from separating from the support column 1 during the raising and lowering process.

[0061] When using this application, first adjust the height of the support column 1 to select a suitable drainage angle. After the adjustment is completed, use the traction structure to place the entire drainage pipe 3 on the bracket. Use the slider 5 to drive the heat insulation and pressure bearing device 4 to move, pass through the drainage pipe 3 of the last section and set at the outlet end of the drainage pipe 3 of the last section.

[0062] The temperature of the heat-insulating pressure-bearing device 4 is heated to 1200°C using heating elements and thermocouples. The portion of the last section of the drain pipe 3 that passes through the heat-insulating pressure-bearing device 4 is extended into the inlet of the drawing machine. The inlet of the first section of the drain pipe 3 is extended into the inlet of the high-temperature furnace. After the arrangement is completed, the glass melt drainage begins.

[0063] After continuous use for a period of time, when the outlet end of the last section of the drain pipe 3 becomes blocked due to the solidification of the molten glass, the drive slider 5 moves along the slide rail 6. The slider 5 drives the heat insulation and pressure bearing device 4 to move, and the heat insulation and pressure bearing device 4 drives the drain pipe 3 to move as a whole, pulling out the last section of the drain pipe 3 that has been inserted into the drawing machine. After being pulled out, the last section of the drain pipe 3 is separated from the adjacent drain pipe 3. After separation, the last section of the drain pipe 3 is replaced. The replaced pipe is reconnected to the adjacent drain pipe 3 and passes through the heat insulation and pressure bearing device 4. After connection, the slider 5 drives the heat insulation and pressure bearing device 4 to move, so that the replaced last section of the drain pipe 3 is reinserted into the inlet of the drawing machine to continue the drainage of molten glass.

[0064] Example 2

[0065] This embodiment is basically the same as embodiment 1, except that in this embodiment, a heat insulation and pressure bearing device 4 can be installed on each section of the drainage pipe 3. In this way, when the drainage pipe 3 is moved as a whole, each section of the drainage pipe 3 can be replaced according to its condition.

[0066] Example 3

[0067] This embodiment is basically the same as Embodiments 1 and 2, except that this embodiment provides a glass fiber production system, which includes the above-mentioned guiding device for glass hot melt.

[0068] Example 4

[0069] This embodiment is basically the same as Embodiments 1, 2 and 3, except that the support column in this embodiment can be suspended upside down on the top of the factory building for the drainage of molten glass, which reduces the occupation of ground space, improves space utilization, and reduces the chance of personnel having direct contact with molten glass, thereby reducing safety hazards.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of this application. It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or basic characteristics of this application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0071] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of this application and should not be used to limit the scope of protection of this application. Any modifications made to the technical solutions based on the technical concept proposed in this application fall within the scope of protection of the claims of this application.

Claims

1. A device for guiding the flow of hot glass melt, characterized in that, It includes a bracket and multiple connected drainage tubes mounted on the bracket. The drainage tubes at the ends pass through a heat-insulating and pressure-bearing device and are connected to the bracket. The heat-insulating and pressure-bearing device and the bracket are movably connected by a slide rail assembly. The heat-insulating and pressure-bearing device can heat the drainage tubes. When the slide rail assembly moves the heat-insulating and pressure-bearing device, the heat-insulating and pressure-bearing device moves the entire drainage tube. The drainage tubes connected to the heat-insulating and pressure-bearing device can be replaced without damaging the overall structure of the drainage tubes. The heat-insulating and pressure-bearing device is sleeved on the outside of the drainage pipe; the heat-insulating and pressure-bearing device includes an outer cylinder, a foam ceramic layer and a first mullite layer connected in sequence from the outside to the inside; at least one mounting hole is opened on the first mullite layer, and a heating element is provided in the mounting hole.

2. The flow guiding device for glass melt according to claim 1, characterized in that, A temperature measuring element is also installed inside the mounting hole.

3. The flow guiding device for glass melt according to claim 2, characterized in that, The heating element and temperature measuring element are enclosed by an insulation structure.

4. The flow guiding device for glass melt according to claim 1, characterized in that, The drainage tube includes an outer shell and a second mullite layer connected sequentially from the outside to the inside.

5. The flow guiding device for glass melt according to claim 1, characterized in that, Both the inlet and outlet ends of the drainage tube are equipped with guide grooves; The angle between the guide channel at the inlet end and the horizontal plane is 40-50°; The angle between the guide channel at the outlet end and the horizontal plane is 70-80°.

6. The flow guiding device for glass melt according to claim 1, characterized in that, The slide rail assembly includes a slide rail and a slider connected to the slide rail, wherein the slider is connected to a heat-insulating and pressure-bearing device.

7. The flow guiding device for glass melt according to claim 1, characterized in that, The support includes a connected support column and a seat frame, wherein the height of the support column is adjustable.

8. A glass fiber production system, characterized in that, The glass fiber production system includes a flow guide device for glass melt according to any one of claims 1 to 7.

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