Basalt fiber wire drawing production line

Abstract

The utility model discloses a basalt fiber wire drawing production line which comprises a wire drawing bushing plate, a coating roller, a bundling wheel, a wire blocking rod, a wire drawing machine and a waste wire collecting tank which are sequentially arranged from top to bottom, the wire drawing machine is installed on the ground, and the wire blocking rod is hung on a hollow supporting table connected to a machine frame. The wire drawing bushing plate, the coating roller and the bundling wheel are respectively installed on the rack, the waste wire collecting tank is located under the ground, a cooling box and a spraying box are arranged between the lower surface of the wire drawing bushing plate and the coating roller, the cooling box and the spraying box are separated through a partition plate, and the cooling box is located above the spraying box. The device is low in maintenance cost, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of basalt fiber production, and more specifically, to a basalt fiber drawing production line. Background Art

[0002] Basalt fiber is a continuous fiber made by high-speed drawing of basalt stone at 1450℃~1500℃ through platinum or platinum-rhodium alloy drawing plate. Its strength is equivalent to that of high-strength S-glass fiber. The color of pure natural basalt fiber is generally brown, and some are golden. Basalt fiber is a new type of inorganic environmentally friendly green high-performance fiber material. It is made of basalt stone composed of oxides such as silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, iron oxide and titanium dioxide. After the basalt melt flows into the rectangular groove cavity plate, the plate temperature is increased by electric heating.

[0003] The crucible method has a small output of basalt fiber production, which cannot meet the market expansion demand. The crucible method wire drawing production line is not suitable for the tank kiln method, and the existing wire drawing production line has a high maintenance cost. Utility Model Content

[0004] In view of the above problems, the utility model provides a basalt fiber drawing production line, which has low maintenance cost and improves product quality.

[0005] A basalt fiber drawing production line comprises a drawing filter plate, a coating roller, a bunching wheel, a wire rod, a drawing machine and a waste wire collection tank which are arranged in sequence from top to bottom. The drawing machine is installed on the ground, the wire rod is suspended on a hollow support table connected to a frame, the drawing filter plate, the coating roller and the bunching wheel are respectively installed on the frame, the waste wire collection tank is located under the ground, a cooling box and a spray box are arranged between the lower surface of the drawing filter plate and the coating roller, and the cooling box and the spray box are separated by a partition, wherein the cooling box is located above the spray box.

[0006] Optionally, an air inlet pipe and an air outlet pipe are respectively connected to the box body of the cooling box.

[0007] Optionally, spray heads are installed on the wall, bottom and top of the spray box.

[0008] Optionally, the clustering wheel is a graphite clustering wheel.

[0009] Optionally, the wire drawing leakage plate includes a bottom plate, two walls and two plugs, the two walls are walls arranged parallel to each other in front and back, the two plugs are respectively located at the left and right ends of the bottom plate, the bottom plate is respectively fixedly connected to the lower ends of the two walls and the lower ends of the two plugs to form a groove-shaped accommodating space with a closed bottom, and the two plugs are connected to two electrodes bent downward.

[0010] Optionally, a wire drawing area is provided on the bottom plate, a plurality of leakage holes are evenly provided on the wire drawing area, and transverse reinforcement ribs and longitudinal reinforcement ribs are evenly provided between the plurality of leakage holes.

[0011] Optionally, a leakage nozzle is installed in each leakage hole, and an upper hole and a lower hole are opened in the leakage nozzle. The upper hole is connected with the lower hole to form a flow channel, and the upper hole is a trumpet-shaped hole that is small at the bottom and large at the top.

[0012] Optionally, the outer diameter of the nozzle is larger at the top and smaller at the bottom.

[0013] Optionally, the upper section of the outer diameter of the drain nozzle is cylindrical, and the lower section is a tapered frustum, and the distance between the lower end of the tapered frustum and the drain hole is 25-30 um.

[0014] Optionally, the distance between the leakage holes in adjacent rows or columns is 6 mm, and the diameter of the lower hole of the leakage nozzle is 1.10 mm.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The basalt fiber drawing production line provided by the utility model reduces maintenance costs on the one hand, and improves product quality on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 This is a schematic diagram of the above-ground structure of a basalt fiber drawing production line provided by the utility model;

[0019] Figure 2 It is a schematic diagram of the underground structure of a basalt fiber drawing production line;

[0020] Figure 3 It is a bottom view schematic diagram of the wire drawing leak plate structure of the utility model;

[0021] Figure 4 This is a schematic bottom view of the wire drawing drain plate structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the front view of the wire drawing leak plate structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the nozzle of the utility model;

[0024] Figure 7 It is a schematic diagram of the above-ground structure of another basalt fiber drawing production line of the utility model.

[0025] Explanation of the accompanying reference numerals: 1. frame, 2. wire drawing leak plate, 3. coating roller, 4. bunching wheel, 5. screw rod, 6. wire drawing machine, 7. ground, 8. support platform, 9. cold air pipe, 10. spray head, 11. waste wire collection trough, 12. exhaust chamber, 13. bottom plate, 14. two walls, 15. two plugs, 16. two electrodes, 17. two connecting ends, 18. leakage hole, 19. transverse reinforcement rib, 20. longitudinal reinforcement rib, 21. leakage nozzle, 22. upper hole, 23. lower hole, 24. flow channel, 25. cooling box, 26. spray box, 27. partition. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be 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.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, "multiple" means two or more, unless otherwise precisely and specifically specified.

[0028] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0031] Example 1

[0032] Please refer to Figure 1-6 , Figure 1 This is a schematic diagram of the above-ground structure of a basalt fiber drawing production line provided in this embodiment. Figure 2 A schematic diagram of the underground structure of a basalt fiber drawing production line provided in this embodiment, Figure 3 This is a bottom view schematic diagram of the wire drawing leak plate structure of the utility model. Figure 4 This is a schematic diagram of the front view of the wire drawing leak plate structure of the utility model. Figure 5 for Figure 3 A enlarged schematic diagram, Figure 6 It is a schematic diagram of the structure of the nozzle of the utility model.

[0033] A basalt fiber drawing production line comprises a drawing filter plate 2, a coating roller 3, a bunching wheel 4, a wire stop rod 5, a drawing machine 6 and a waste wire collection tank 11 which are arranged in sequence from top to bottom. The drawing machine 6 is installed on the ground 7, the wire stop rod 5 is suspended on a hollow support platform 8 connected to a frame 1, the drawing filter plate 2, the coating roller 3 and the bunching wheel 4 are respectively installed on the frame 1, and a cooling air pipe 9 and a spray head 10 are arranged between the lower surface of the drawing filter plate 2 and the coating roller 3, wherein the cooling air pipe 9 is located above the spray head 10, and the waste wire collection tank 11 is located below the ground 7.

[0034] The cold air pipe 9 and the spray head 10 gradually condense the basalt fibers from the drawing plate 2 into a solid state, the coating roller 3 coats a layer of impregnating agent on the condensed basalt fibers from the drawing plate 2, the bundling wheel 4 is used to gather the oiled basalt fibers from the coating roller 3 into a bundle, the screw rod 5 tensions the fiber bundle and winds it onto the drawing machine 6, and the waste fibers generated by the drawing machine 6 are collected in the waste fiber collecting tank 11.

[0035] Those skilled in the art should know that in one or more specific embodiments of the present invention, the clustering wheel 4 is a graphite clustering wheel. Of course, the clustering wheel 4 can also be made of other materials, and those skilled in the art can select as needed.

[0036] Those skilled in the art should be aware that, in the present invention, the gear screw rod 5 is a component purchased on the market, which provides tension. The tensioning force can be adjusted by adjusting the gear rod up, down, left, and right. Those skilled in the art can adjust it as needed.

[0037] Those skilled in the art should be aware that, in the present invention, the wire drawing machine 6 is a component purchased on the market, and those skilled in the art can select it according to their needs.

[0038] Those skilled in the art should know that, in one or more specific embodiments of the present invention, the basalt fiber drawing production line further includes an exhaust chamber 12, an exhaust fan is installed in the exhaust chamber 12, the exhaust chamber 12 is located under the ground 7, and a filter screen 13 is provided between the waste fiber collection tank 11 and the exhaust chamber 12. The exhaust fan provided in the exhaust chamber 12 sucks the waste fibers generated during drawing into the waste fiber collection tank 11.

[0039] Those skilled in the art should be aware that, in one or more specific embodiments of the present invention, the wire drawing leakage plate 2 includes a bottom plate 13, two walls 14 and two plugs 15, the two walls 14 are walls arranged parallel to each other in the front and rear directions, the two plugs 15 are respectively located at the left and right ends of the bottom plate 13, the bottom plate 13 is respectively fixedly connected to the lower ends of the two walls 14 and the lower ends of the two plugs 15 to form a groove-shaped accommodating space with a closed bottom, the two plugs 15 are connected to two electrodes 16 bent downward, and the wire drawing leakage plate 2 is connected to the frame 1 by being connected to two connecting ends 17.

[0040] The two electrodes 16 can be energized to heat the two plugs 15 to adjust the temperature of the molten liquid contained in the trough-shaped accommodation space, control the temperature of the basalt fiber exiting the wire drawing plate 2, and improve the wire drawing quality. The trough-shaped accommodation space with a closed bottom is connected to the molten liquid flow channel of the tank kiln.

[0041] A wire drawing area is provided on the bottom plate 13, and a plurality of leak holes 18 are evenly provided on the wire drawing area, and transverse reinforcing ribs 19 and longitudinal reinforcing ribs 20 are evenly provided between the leak holes 18. The transverse reinforcing ribs 19 and longitudinal reinforcing ribs 20 strengthen the strength of the bottom plate 13, prevent the deformation of the wire drawing area, greatly extend the life of the wire drawing leak plate 2 (the life of the wire drawing leak plate 2 is usually only 12 months), and reduce the frequency of production line maintenance. In addition, since the wire drawing leak plate 2 is made of precious metal except for the electrode, the production cost is reduced.

[0042] Those skilled in the art should be aware that, in one or more specific embodiments of the present utility model, a leak nozzle 21 is installed in each leak hole 18, and an upper hole 22 and a lower hole 23 are provided in the leak nozzle 21. The upper hole 22 is connected with the lower hole 23 to form a flow channel 24. The upper hole 22 is a trumpet-shaped hole that is small at the bottom and large at the top. The flow channel 24 formed in this way is beneficial to improving the quality of wire drawing.

[0043] Those skilled in the art should know that, in one or more specific embodiments of the present invention, the outer diameter of the drain nozzle 21 is larger at the top and smaller at the bottom, so that the drain nozzle 21 arranged in this way can be easily inserted into the drain hole 18 to complete the installation.

[0044] Those skilled in the art should know that, in one or more specific embodiments of the present invention, the upper section of the outer diameter of the drain nozzle 21 is cylindrical, and the lower section is a tapered frustum, and the distance between the lower end of the tapered frustum and the drain hole 18 is 25-30um, so that during installation, the radial mechanical expansion force just cooperates with the drain hole 18.

[0045] When manufacturing the bottom plate 13 of the utility model, the leakage hole 18 can be first formed on the bottom plate 13 by mechanical or chemical methods, and then the transverse reinforcement ribs 19 and the longitudinal reinforcement ribs 20 can be formed between the leakage holes 18 by mechanical or chemical methods, such as by electroplating, sputtering, etc. The leakage nozzle 21 can be installed in the leakage hole 18 by welding, or an internal thread can be formed on the hole wall of the leakage hole 18, and an external thread can be formed on the leakage nozzle 21, and connected by threaded connection. When the leakage nozzle 21 is connected by thread, when the local leakage nozzle 21 is damaged, only the damaged leakage nozzle 21 needs to be replaced, and there is no need to replace the entire bottom plate 13, thereby reducing the maintenance cost.

[0046] Those skilled in the art should know that in one or more specific embodiments of the present invention, with the center point of the bottom plate 13 as a reference, the farther the flow channel 24 is from the center point of the bottom plate 13, the greater the width of the flow channel 24, so as to ensure that the basalt fibers exiting the flow channel 24 are uniform.

[0047] Those skilled in the art should be aware that, in one or more specific embodiments of the present invention, the base plate 13, the two walls 14 and the two plugs 15 are made of a platinum-rhodium alloy, wherein the rhodium content is 5-10 wt%.

[0048] Those skilled in the art should know that, in one or more specific embodiments of the present invention, the distance between every two adjacent rows or columns of leakage holes 18 is 6 mm, and the lower hole diameter of the leakage nozzle 21 is 1.10 mm.

[0049] Example 2

[0050] Although the basalt fiber drawing production line of Example 1 reduces maintenance costs and improves product quality, the cooling of the drawing leak plate 2 by the cold air pipe and the spray head of Example 1 results in different condensation degrees due to uneven temperature distribution, thus affecting product quality.

[0051] Please refer to Figure 7 , Figure 2-6 , Figure 7 A schematic diagram of the above-ground structure of another basalt fiber drawing production line provided in this embodiment.

[0052] A basalt fiber drawing production line comprises a drawing filter plate 2, a coating roller 3, a bunching wheel 4, a wire stop rod 5, a drawing machine 6 and a waste wire collecting tank 11 which are arranged in sequence from top to bottom. The drawing machine 6 is installed on the ground 7, the wire stop rod 5 is suspended on a hollow support platform 8 connected to a frame 1, the drawing filter plate 2, the coating roller 3 and the bunching wheel 4 are respectively installed on the frame 1, a cooling box 25 and a spray box 26 are arranged between the lower surface of the drawing filter plate 2 and the coating roller 3, and the cooling box 25 and the spray box 26 are separated by a partition 27, wherein the cooling box 25 is located above the spray box 26, and the waste wire collecting tank 11 is located below the ground 7.

[0053] The cooling box 25 and the spray box 26 gradually condense the basalt fibers from the drawing plate 2 into a solid state, the coating roller 3 coats a layer of impregnation agent on the condensed basalt fibers from the drawing plate 2, the bundling wheel 4 is used to gather the oiled basalt fibers from the coating roller 3 into a bundle, the screw rod 5 tensions the fiber bundle and winds it onto the drawing machine 6, and the waste fibers generated by the drawing machine 6 enter the waste fiber collecting tank 11 for collection.

[0054] Those skilled in the art should be aware that, in one or more specific embodiments of the present invention, openings are provided on the box panels of the cooling box 25 and the spray box 26 which are perpendicular to the running direction of the basalt fibers to allow the basalt fibers to pass through. An air inlet pipe and an air outlet pipe are respectively connected to the box body of the cooling box 25. The temperature inside the cooling box 25 is controlled by controlling the flow rate of the air inlet pipe and the air outlet pipe. Since the air inlets and air outlets of the air inlet pipe and the air outlet pipe are not directly opposite to the basalt fibers, and the gas is distributed in the entire cooling box 25, the temperature distribution is more uniform than in Example 1.

[0055] Those skilled in the art should know that in one or more specific embodiments of the present invention, nozzles are installed on the wall, bottom and top of the spray box 26 to ensure that the basalt fiber passes through the spray box 26 in a substantially immersed manner to ensure uniform temperature distribution.

[0056] Those skilled in the art should know that in one or more specific embodiments of the present invention, the clustering wheel 4 is a graphite clustering wheel. Of course, the clustering wheel 4 can also be made of other materials, and those skilled in the art can select as needed.

[0057] Those skilled in the art should be aware that, in the present invention, the gear screw rod 5 is a component purchased on the market, which provides tension. The tensioning force can be adjusted by adjusting the gear rod up, down, left, and right. Those skilled in the art can adjust it as needed.

[0058] Those skilled in the art should be aware that, in the present invention, the wire drawing machine 6 is a component purchased on the market, and those skilled in the art can select it according to their needs.

[0059] Those skilled in the art should know that, in one or more specific embodiments of the present invention, the basalt fiber drawing production line further includes an exhaust chamber 12, an exhaust fan is installed in the exhaust chamber 12, the exhaust chamber 12 is located under the ground 7, and a filter screen 13 is provided between the waste fiber collection tank 11 and the exhaust chamber 12. The exhaust fan provided in the exhaust chamber 12 sucks the waste fibers generated during drawing into the waste fiber collection tank 11.

[0060] Those skilled in the art should be aware that, in one or more specific embodiments of the present invention, the wire drawing leakage plate 2 includes a bottom plate 13, two walls 14 and two plugs 15, the two walls 14 are walls arranged parallel to each other in the front and rear directions, the two plugs 15 are respectively located at the left and right ends of the bottom plate 13, the bottom plate 13 is respectively fixedly connected to the lower ends of the two walls 14 and the lower ends of the two plugs 15 to form a groove-shaped accommodating space with a closed bottom, the two plugs 15 are connected to two electrodes 16 bent downward, and the wire drawing leakage plate 2 is connected to the frame 1 by being connected to two connecting ends 17.

[0061] The two electrodes 16 can be energized to heat the two plugs 15 to adjust the temperature of the molten liquid contained in the trough-shaped accommodation space, control the temperature of the basalt fiber exiting the wire drawing plate 2, and improve the wire drawing quality. The trough-shaped accommodation space with a closed bottom is connected to the molten liquid flow channel of the tank kiln.

[0062] A wire drawing area is provided on the bottom plate 13, and a plurality of leak holes 18 are evenly provided on the wire drawing area, and transverse reinforcing ribs 19 and longitudinal reinforcing ribs 20 are evenly provided between the leak holes 18. The transverse reinforcing ribs 19 and longitudinal reinforcing ribs 20 strengthen the strength of the bottom plate 13, prevent the deformation of the wire drawing area, greatly extend the life of the wire drawing leak plate 2 (the life of the wire drawing leak plate 2 is usually only 12 months), and reduce the frequency of production line maintenance. In addition, since the wire drawing leak plate 2 is made of precious metal except for the electrode, the production cost is reduced.

[0063] Those skilled in the art should be aware that, in one or more specific embodiments of the present utility model, a leak nozzle 21 is installed in each leak hole 18, and an upper hole 22 and a lower hole 23 are provided in the leak nozzle 21. The upper hole 22 is connected with the lower hole 23 to form a flow channel 24. The upper hole 22 is a trumpet-shaped hole that is small at the bottom and large at the top. The flow channel 24 formed in this way is beneficial to improving the quality of wire drawing.

[0064] Those skilled in the art should know that, in one or more specific embodiments of the present invention, the outer diameter of the drain nozzle 21 is larger at the top and smaller at the bottom, so that the drain nozzle 21 arranged in this way can be easily inserted into the drain hole 18 to complete the installation.

[0065] Those skilled in the art should know that, in one or more specific embodiments of the present invention, the upper section of the outer diameter of the drain nozzle 21 is cylindrical, and the lower section is a tapered frustum, and the distance between the lower end of the tapered frustum and the drain hole 18 is 25-30um, so that during installation, the radial mechanical expansion force just cooperates with the drain hole 18.

[0066] When manufacturing the bottom plate 13 of the utility model, the leakage hole 18 can be first formed on the bottom plate 13 by mechanical or chemical methods, and then the transverse reinforcement ribs 19 and the longitudinal reinforcement ribs 20 can be formed between the leakage holes 18 by mechanical or chemical methods, such as by electroplating, sputtering, etc. The leakage nozzle 21 can be installed in the leakage hole 18 by welding, or an internal thread can be formed on the hole wall of the leakage hole 18, and an external thread can be formed on the leakage nozzle 21, and connected by threaded connection. When the leakage nozzle 21 is connected by thread, when the local leakage nozzle 21 is damaged, only the damaged leakage nozzle 21 needs to be replaced, and there is no need to replace the entire bottom plate 13, thereby reducing the maintenance cost.

[0067] Those skilled in the art should know that in one or more specific embodiments of the present invention, with the center point of the bottom plate 13 as a reference, the farther the flow channel 24 is from the center point of the bottom plate 13, the greater the width of the flow channel 24, so as to ensure that the basalt fibers exiting the flow channel 24 are uniform.

[0068] Those skilled in the art should be aware that, in one or more specific embodiments of the present invention, the base plate 13, the two walls 14 and the two plugs 15 are made of a platinum-rhodium alloy, wherein the rhodium content is 5-10 wt%.

[0069] Those skilled in the art should know that, in one or more specific embodiments of the present invention, the distance between every two adjacent rows or columns of leakage holes 18 is 6 mm, and the lower hole diameter of the leakage nozzle 21 is 1.10 mm.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A basalt fiber drawing production line, comprising a drawing filter plate (2), a coating roller (3), a bunching wheel (4), a wire stop rod (5), a drawing machine (6) and a waste wire collection tank (11) arranged in sequence from top to bottom, the drawing machine (6) is installed on the ground (7), the wire stop rod (5) is suspended on a hollow support platform (8) connected to a frame (1), the drawing filter plate (2), the coating roller (3) and the bunching wheel (4) are respectively installed on the frame (1), and the waste wire collection tank (11) is located under the ground (7), characterized in that: A cooling box (25) and a spray box (26) are arranged between the lower surface of the drawing leak plate (2) and the coating roller (3), and the cooling box (25) and the spray box (26) are separated by a partition (27), wherein the cooling box (25) is located above the spray box (26); an air inlet pipe and an air outlet pipe are respectively connected to the box body of the cooling box (25); nozzles are installed on the box wall, the box bottom and the box top of the spray box (26); the drawing leak plate (2) includes a bottom plate (13), two walls (14) and two plugs (15), the two walls (14) are walls arranged parallel to each other, the two plugs (15) are respectively located at the left end and the right end of the bottom plate (13), and the bottom plate (13) is respectively connected to the bottom plate (13). The lower ends of the two walls (14) and the lower ends of the two plugs (15) are fixedly connected to form a groove-shaped accommodation space with a closed bottom, and the two plugs (15) are connected to two electrodes (16) bent downward; a wire drawing area is provided on the bottom plate (13), and a plurality of leakage holes (18) are evenly arranged on the wire drawing area, and transverse reinforcing ribs (19) and longitudinal reinforcing ribs (20) are evenly arranged between the plurality of leakage holes (18); a leakage nozzle (21) is installed in each leakage hole (18), and an upper hole (22) and a lower hole (23) are opened in the leakage nozzle (21), and the upper hole (22) and the lower hole (23) are connected to form a flow channel (24), and the upper hole (22) is a trumpet-shaped hole that is smaller at the bottom and larger at the top.

2. The basalt fiber drawing production line according to claim 1, characterized in that: The clustering wheel (4) is a graphite clustering wheel.

3. The basalt fiber drawing production line according to claim 1, characterized in that: The outer diameter of the drain nozzle (21) is larger at the top and smaller at the bottom.

4. The basalt fiber drawing production line according to claim 3, characterized in that: The upper section of the outer diameter of the leakage nozzle (21) is cylindrical, and the lower section is a tapered frustum, and the distance between the lower end of the tapered frustum and the leakage hole (18) is 25-30 um.

5. The basalt fiber drawing production line according to claim 1, characterized in that: The distance between the leakage holes (18) in adjacent rows or columns is 6 mm, and the lower hole diameter of the leakage nozzle (21) is 1.10 mm.

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