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

Abstract

The present invention relates to the field of glass fiber manufacturing, and specifically to a drainage device for hot melt glass and a glass fiber production system; the drainage device includes a bracket and a drainage tube arranged on the bracket, wherein the drainage tube is connected to a heat-insulating pressure-bearing device, and the heat-insulating pressure-bearing device is movably connected to the bracket, wherein the heat-insulating pressure-bearing device can heat the drainage tube, and when the heat-insulating pressure-bearing device drives the drainage tube to move, the drainage tube can be replaced. The present invention can heat the glass liquid at the outlet end of the drainage tube through the heat-insulating pressure-bearing device, and also ensures the control of the glass liquid temperature. The heating element and the temperature measuring element can monitor and adjust the glass liquid temperature in real time, so that the glass liquid temperature can reach the requirement of hot-melt drawing of the glass fiber, thereby ensuring production efficiency and product quality.

Description

Technical Field

[0001] The invention relates to the field of glass fiber manufacturing, and in particular to a drainage device for hot melt glass and a glass fiber production system. Background Art

[0002] Glass fiber is an inorganic non-metallic material with excellent performance. It has the advantages of good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength. It is often used in aerospace, automobile, 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 to melt the raw materials into molten glass at high temperature, and transfer the molten glass to the drawing machine for processing through a drainage device.

[0003] However, most of the existing drainage devices are drainage tubes or drainage troughs. When the drainage device transports high-temperature molten glass, the glass loses heat during transportation, causing the temperature of the molten glass to drop. When the molten glass reaches the drawing machine, the temperature of the molten glass is difficult to reach the requirement for hot-melt drawing of the glass fiber, which directly affects the production quality and efficiency of the glass fiber. In addition, when the drainage device is used for a long time, the molten glass will solidify at the outlet of the drainage device. Since the solidified molten glass will completely or partially block the outlet of the drainage device, the entire drainage device needs to be replaced before production can continue. However, the process of replacing the entire drainage device is cumbersome, and frequent replacement of the drainage device will increase production costs. In addition, the drainage device often has a certain service life, and has to be replaced due to outlet blockage, which further causes resource waste. Finally, the existing drainage device will cause glass liquid to accumulate during drainage, resulting in slow drainage or jamming, thereby affecting subsequent production. Summary of the invention

[0004] In response to the problems mentioned in the prior art, the present invention proposes a drainage device for hot-melt 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 requirement for hot-melt drawing of the glass fibers; when the outlet end of the drainage device is blocked, the replacement speed can be accelerated, and only the outlet end needs to be replaced; when the molten glass is drained, the accumulation of the molten glass is reduced.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] The first aspect includes a bracket and a plurality of connected drainage tubes arranged on the bracket, wherein the drainage tube at the end is connected to the bracket through a heat-insulating pressure-bearing device, and the heat-insulating pressure-bearing device and the bracket are movably connected through a slide rail assembly, wherein the heat-insulating pressure-bearing device can heat the drainage tube, and when the slide rail assembly drives the heat-insulating pressure-bearing device to move, the heat-insulating pressure-bearing device drives the drainage tube to move as a whole, and the drainage tube connected to the heat-insulating pressure-bearing device can be replaced without destroying the overall structure of the drainage tube.

[0007] As a further improvement of the present invention, the heat-insulating pressure-bearing device is sleeved on the outside of the drainage pipe; the heat-insulating pressure-bearing device includes an outer cylinder, a foam ceramic layer and a first mullite layer which are sequentially connected from outside to inside.

[0008] As a further improvement of the present invention, at least one mounting hole is provided on the first mullite layer, and a heating element is provided in the mounting hole.

[0009] As a further improvement of the present invention, a temperature measuring component is also provided in the mounting hole.

[0010] As a further improvement of the present invention, the heating element and the temperature measuring element are wrapped with a heat-insulating structure.

[0011] As a further improvement of the present invention, the drainage tube includes an outer shell and a second mullite layer which are sequentially connected from the outside to the inside.

[0012] As a further improvement of the present invention, both the inlet and outlet ends of the drainage tube are provided with guide grooves;

[0013] The angle between the guide groove at the inlet end and the horizontal plane is 40-50°;

[0014] The angle between the guide groove at the outlet end and the horizontal plane is 70-80 degrees.

[0015] As a further improvement of the present invention, the slide rail assembly includes a slide rail and a slider connected to the slide rail, wherein the slider is connected to the heat-insulating pressure-bearing device.

[0016] As a further improvement of the present invention, the bracket includes a connected support column and a seat frame, wherein the height of the support column is adjustable.

[0017] In a second aspect, the present invention provides a glass fiber production system, wherein the glass fiber production system comprises the above-mentioned drainage device for hot melt glass.

[0018] Compared with the prior art, the present invention has achieved the following technical effects:

[0019] The present invention can heat the molten glass at the outlet end of the drainage tube through the heat-insulating pressure-bearing device, and also ensure the control of the temperature of the molten glass. The set heating element and temperature measuring element can monitor and adjust the temperature of the molten glass in real time, so that the temperature of the molten glass can meet the requirement of hot-melt drawing of glass fibers, thereby ensuring production efficiency and product quality.

[0020] The present invention can drive the heat-insulating pressure-bearing device to move along the slide rail by cooperating with the slide rail through the arranged slide rail. In the case that the outlet end of the drainage tube is blocked due to the cooling and solidification of the glass liquid, the slide rail is used to drive the heat-insulating pressure-bearing device to move, so that the outlet section of the drainage tube can be pulled out of the wire drawing machine. Only the blocked outlet end of the drainage tube needs to be replaced, and there is no need to replace the drainage tube as a whole, which greatly saves material costs and reduces the risk of production interruption. In addition, the entire replacement process is simple.

[0021] In the present invention, guide grooves are arranged at the outlet and inlet ends of the drainage tube. The guide groove arranged at the inlet end can ensure a fast flow rate of the glass liquid during transportation, effectively avoiding the problem of glass liquid accumulation caused by too slow flow rate, and ensuring the continuity and stability of the entire transportation; the guide groove arranged at the outlet end can slow down the flow rate of the glass liquid, which helps the glass liquid to stay in the heat-insulating and pressure-bearing device for a longer time so that it can absorb heat more fully and improve the heating effect. At the same time, it also creates favorable conditions for the subsequent wire drawing steps, further improving the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the drainage device for hot melt glass of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the heat-insulating pressure-bearing device of the present invention;

[0024] Figure 3 It is a schematic diagram of the slide rail structure of the present invention.

[0025] Figure numerals: 1. pillar; 2. seat frame; 3. drainage pipe; 4. heat 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 DESCRIPTION

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0032] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0033] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0034] Various structural schematic diagrams of the embodiments disclosed in the present invention are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0035] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] Example 1

[0037] like Figure 1 As shown, it includes a bracket and a plurality of connected drainage tubes 3 arranged on the bracket, the drainage tube 3 located at the end is connected to the bracket through a heat-insulating pressure-bearing device 4, the heat-insulating pressure-bearing device 4 and the bracket are movably connected through a slide rail assembly, wherein the heat-insulating pressure-bearing device 4 can heat the drainage tube 3, when the slide rail assembly drives the heat-insulating pressure-bearing device 4 to move, the heat-insulating pressure-bearing device 4 drives the drainage tube 3 to move as a whole, and the drainage tube 3 connected to the heat-insulating pressure-bearing device 4 can be replaced without destroying the overall structure of the drainage tube 3.

[0038] The heat-insulating and pressure-bearing device 4 is sleeved on the outside of the drainage pipe 3 ; the heat-insulating and pressure-bearing device 4 comprises an outer cylinder 9 , a foam ceramic layer 8 and a first mullite layer 7 which are sequentially connected from outside to inside.

[0039] like Figure 2As shown, in the 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. A through hole for the drainage tube 3 to pass through is opened in the middle of the heat-insulating pressure-bearing device 4. The diameter of the through hole in the embodiment matches the diameter of the drainage tube 3, so that the heat-insulating pressure-bearing device 4 and the drainage tube 3 fit tightly, reducing the situation where the heating element cannot be heated due to excessive gap. In addition, it can ensure that the drainage tube 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 also drives the connected drainage tube 3 to move together, which can prevent the drainage tube 3 from shaking or shifting.

[0040] In the embodiment, the outer cylinder 9 located at the outermost layer is preferably made of heat-resistant steel. The heat-resistant steel has good high-temperature resistance and can ensure that the heat insulation and pressure-bearing device 4 reduces heat loss when heated to ensure heating efficiency. In the embodiment, the outer cylinder 9 is axially provided with a connecting plate, and the connecting plate is provided with a plurality of connecting holes. The connecting holes are used for screws or bolts to pass through, and the heat insulation and pressure-bearing device 4 can be connected to the slider 5 for easy disassembly and installation.

[0041] In the embodiment, the foam ceramic layer 8 is prepared by a high-temperature lining carving process, and the foam ceramic can be set on the inner wall of the outer cylinder 9. The foam ceramic has heat insulation properties, can effectively prevent heat transfer, and improve thermal insulation performance.

[0042] In the embodiment, the first mullite layer 7 is also prepared by a high-temperature lining carving process. The first mullite layer 7 and the foam ceramic layer 8 are nested. Mullite has the characteristics of high melting point and fire resistance. Its melting point can reach 1800°C. It can have excellent stability in a high temperature environment, further improving the thermal insulation effect.

[0043] At least one mounting hole 10 is provided on the first mullite layer 7, and a heating element is provided in the mounting hole 10. A temperature measuring element is also provided in the mounting hole 10. The heating element and the temperature measuring element are wrapped with a heat-insulating structure.

[0044] like Figure 2 As shown, in the embodiment, a plurality of mounting holes 10 are provided on the first mullite layer 7. The mounting holes 10 are semicircular structures. 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.

[0045] The heating element in the embodiment is preferably a heating rod, and the temperature measuring element is preferably a thermocouple, but it is not limited to this. Different heating elements and temperature measuring elements can be selected according to actual needs and application scenarios. For example, the heating element can be a heating wire, resistance heating, etc., and the temperature measuring element can be a semiconductor sensor, capacitive sensor, etc., and no restrictions will be made here.

[0046] In the embodiment, there are preferably 5 heating rods and 2 thermocouples, but this is not limited to this. The number of heating rods or thermocouples can be increased or decreased according to actual needs and application scenarios. The parameter specifications of the heating rod in the embodiment are an outer diameter of φ20mm, a length of 3000mm, a power supply voltage of AC220, and a power of 6.5KW. When the heating rod is placed in the air, its surface temperature is not lower than 1200°C, and the length of the power lead wire of the heating rod is 6000mm.

[0047] In the embodiment, the heating rod and the thermoelectric are both electrically controlled remotely. In the embodiment, the heating element and the temperature measuring element are wrapped with an insulation structure, and the insulation structure is closely fitted with the heating element and the temperature measuring element to ensure the insulation effect; the insulation structure is specifically an aerogel foam ceramic insulation felt, which is mainly made of nano-silicon dioxide aerogel as the main material and is compounded with foam ceramic or other reinforcing materials through a special process. This structure makes the insulation felt have both the excellent thermal insulation performance of aerogel and the strength and stability of foam ceramic.

[0048] The drainage pipe 3 includes an outer shell and a second mullite layer which are sequentially connected from the outside to the inside. Figure 1 As shown, in the embodiment, the outlet end of the drainage tube 3 is arranged through the through hole in the heat-insulating pressure-bearing device 4, and the outlet end of the drainage tube 3 extends to the outside of the heat-insulating pressure-bearing device 4 and extends into the wire drawing machine.

[0049] In the embodiment, the overall length of the drainage tube 3 can be set according to the use scenario of the glass fiber system, such as 500m, 300m, etc. Therefore, the length of each section of the drainage tube 3 is determined according to the overall length and the number of drainage tubes 3, so the length is not much restricted here; the outer shell of the drainage tube 3 is made of S310 stainless steel material, which has the characteristics of high temperature resistance, corrosion resistance, high strength, etc. Of course, a ceramic composite material tube can also be selected, which is mainly composed of silicon carbide combined with silicon nitride composite sintering, and has the characteristics of high strength, high stability, and long life.

[0050] In the embodiment, the interior of 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 is preferably 2-3 mm.

[0051] The inlet and outlet ends of the drainage pipe 3 are both provided with guide grooves; the angle between the guide groove at the inlet end and the horizontal plane is 40-50°; the angle between the guide groove at the outlet end and the horizontal plane is 70-80°.

[0052] The guide groove arranged at the inlet end of the drainage tube 3 in the embodiment can speed up the flow of the glass liquid and prevent the glass liquid from accumulating due to too slow flow speed. The guide groove and the drainage tube 3 are preferably integrally formed, which can be easily processed. The preferred angle between the guide groove and the horizontal plane is 45°. This angle can ensure that the glass liquid smoothly enters the drainage tube 3, and can ensure that the glass liquid will not accumulate due to the slow flow rate. At the same time, the glass liquid will not drop in temperature quickly due to excessive speed due to the excessive length of the guide groove, thereby improving the drainage efficiency.

[0053] In the embodiment, the guide groove at the outlet end is arranged opposite to the guide groove at the inlet end. The guide groove at the outlet end can slow down the flow rate of the glass liquid, so that the glass liquid stays for a long time after passing through the heat-insulating pressure-bearing device 4, which can further improve the heating effect of the glass liquid. The specific angle between the guide groove and the horizontal plane is preferably 70°, which can reduce the flow rate of the glass liquid while avoiding the accumulation of glass liquid due to too slow speed.

[0054] 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 pressure-bearing device 4 .

[0055] The slide rail 6 in the embodiment is composed of two connected first slide rails 12 and second slide rails 11, wherein the length of the first slide rail 12 is greater than that of the second slide rail 11, the first slide rail 12 is provided with a protrusion arranged along the length direction, the bottom of the second slide rail 11 is connected to the protrusion, and the top of the second slide rail 11 is provided with a slider 5. In this embodiment, the first slide rail 12 and the second slide rail 11 are connected by the protrusion, so that the slider 5 can slide smoothly on the second slide rail 11, thereby ensuring the movement accuracy of the slider 5 on the slide rail 6, and at the same time reducing the error caused by deformation of the slide rail 6 or unstable connection.

[0056] The bracket includes a connected support 1 and a seat frame 2, wherein the height of the support 1 is adjustable. In the embodiment, three groups of support 1 are provided, but the present invention is not limited thereto, and the number of support 1 can be increased or decreased according to actual needs. The top of the support 1 is connected to a seat frame 2 for placing a slide rail 6, and the seat frame 2 is fixedly connected to the support 1 by screws.

[0057] In the embodiment, the height of the pillar 1 can be adjusted. In this way, when the height of each group of pillars 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 the adjustment is completed, a wire rope + pulley mechanism can be used as a traction mechanism to place the drainage tube 3 on the bracket.

[0058] In the embodiment, the pillar 1 is provided with an inner cavity, in which a motor is provided, and a threaded screw is connected to the output end of the motor. When the motor is powered on and started, its output shaft will drive the threaded screw to perform synchronous rotation adjustment; the pillar 1 is also provided with an adjustment column extending outside, and the other end of the adjustment column is connected to the seat frame 2. A threaded groove matching the threaded screw is provided inside the adjustment column. When the threaded screw rotates, the adjustment column will move up and down longitudinally in the inner cavity of the pillar 1 to achieve the height change of the pillar 1. The rise or fall depends on the shaft rotation direction of the motor. In the embodiment, a limit rod is also provided at the top of the inner cavity of the pillar 1 to prevent the adjustment column from separating from the pillar 1 during the lifting process.

[0059] When the present invention is used, firstly, the height of the pillar 1 is adjusted to select a suitable drainage angle. After the adjustment is completed, the entire drainage pipe 3 is placed on the bracket using a traction structure, and the heat insulation and pressure-bearing device 4 is driven to move by the slider 5, passing through the drainage pipe 3 of the last section and being set at the outlet end of the drainage pipe 3 of the last section.

[0060] The temperature of the heat-insulating pressure-bearing device 4 is heated to 1200°C using a heating element and a thermocouple, the last section of the drainage pipe 3 is passed through the heat-insulating pressure-bearing device 4 and extended to the inlet of the wire drawing machine, and the inlet of the first section of the drainage pipe 3 is extended to the inlet of the high-temperature furnace. After the arrangement is completed, the glass liquid drainage begins.

[0061] After continuous use for a period of time, when the outlet end of the last section of the drainage tube 3 is blocked due to the solidification of the glass liquid, the slider 5 is driven to move along the slide rail 6, and the slider 5 drives the heat-insulating pressure-bearing device 4 to move, and the heat-insulating pressure-bearing device 4 drives the drainage tube 3 to move as a whole, and pulls out the last section of the drainage tube 3 extended into the wire drawing machine, and after pulling out, the last section of the drainage tube 3 is separated from the adjacent drainage tube 3, and after separation, the last section of the drainage tube 3 is replaced, and the replaced pipeline is reconnected to the adjacent drainage tube 3, and connected through the heat-insulating pressure-bearing device 4, and after connection, the heat-insulating pressure-bearing device 4 is driven to move by the slider 5, so that the replaced last section of the drainage tube 3 is re-extended into the entrance of the wire drawing machine to continue the drainage of the glass liquid.

[0062] Example 2

[0063] This embodiment is basically the same as embodiment 1, except that in this embodiment, a heat-insulating pressure-bearing device 4 can be installed on each section of the drainage tube 3, so that when the drainage tube 3 moves as a whole, each section of the drainage tube 3 can be replaced according to the state of each section of the drainage tube 3.

[0064] Example 3

[0065] This embodiment is basically the same as Embodiment 1 and Embodiment 2, except that this embodiment provides a glass fiber production system, and the glass fiber production system includes the above-mentioned drainage device for glass hot melt.

[0066] Example 4

[0067] This embodiment is basically the same as Embodiment 1, Embodiment 2 and Embodiment 3, except that the pillars in this embodiment are preferably suspended inverted on the top of the factory building for draining the molten glass, which reduces the occupation of ground space, improves space utilization, and reduces the chance of direct contact between personnel and molten glass, thereby reducing safety hazards.

[0068] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0069] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A drainage device for hot melt glass, characterized in that: It comprises a bracket and a plurality of connected drainage pipes arranged on the bracket, wherein the drainage pipe at the end passes through a heat-insulating pressure-bearing device and is connected to the bracket, and the heat-insulating pressure-bearing device and the bracket are movably connected through a slide rail assembly, wherein the heat-insulating pressure-bearing device can heat the drainage pipe, and when the slide rail assembly drives the heat-insulating pressure-bearing device to move, the heat-insulating pressure-bearing device drives the drainage pipe to move as a whole, and the drainage pipe connected to the heat-insulating pressure-bearing device can be replaced without destroying the overall structure of the drainage pipe; The heat-insulating and pressure-bearing device is sleeved on the outside of the drainage pipe; the heat-insulating and pressure-bearing device comprises an outer cylinder, a foam ceramic layer and a first mullite layer which are sequentially connected from the outside to the inside; at least one mounting hole is opened on the first mullite layer, and a heating element is arranged in the mounting hole; The inlet and outlet ends of the drainage tube are both provided with guide grooves; the angle between the guide groove at the inlet end and the horizontal plane is 40-50°; the angle between the guide groove at the outlet end and the horizontal plane is 70-80°; The slide rail assembly comprises a slide rail and a slider connected to the slide rail, wherein the slider is connected to the heat insulation and pressure bearing device.

2. The drainage device for hot melt glass according to claim 1, characterized in that: A temperature measuring component is also provided in the mounting hole.

3. The drainage device for hot melt glass according to claim 2, characterized in that: The heating element and the temperature measuring element are wrapped with a heat-insulating structure.

4. The drainage device for hot melt glass according to claim 1, characterized in that: The drainage pipe comprises an outer shell and a second mullite layer which are sequentially connected from outside to inside.

5. The drainage device for hot melt glass according to claim 1, characterized in that: The support comprises a connected support column and a seat frame, wherein the height of the support column is adjustable.

6. A glass fiber production system, characterized in that: The glass fiber production system comprises the drainage device for hot melt glass according to any one of claims 1 to 5.

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