CN112745021A - Structure and method for producing hollow continuous basalt fiber drawing bushing and tank furnace - Google Patents
Structure and method for producing hollow continuous basalt fiber drawing bushing and tank furnace Download PDFInfo
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- CN112745021A CN112745021A CN202110143624.9A CN202110143624A CN112745021A CN 112745021 A CN112745021 A CN 112745021A CN 202110143624 A CN202110143624 A CN 202110143624A CN 112745021 A CN112745021 A CN 112745021A
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- bushing
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
- C03B37/083—Nozzles; Bushing nozzle plates
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
- C03B5/03—Tank furnaces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
本发明提供了一种生产空心连续玄武岩纤维拉丝漏板，一种生产空心连续玄武岩纤维拉丝漏板，包括漏板本体以及设置于漏板本体上的漏嘴；漏嘴包括内管和外管，内管与外管之间设置有环形的流道腔；内管靠近漏板本体上表面的一端延伸出漏板本体表面。一种生产空心连续玄武岩纤维池窑炉结构，包括池窑炉以及上述生产空心连续玄武岩纤维拉丝漏板，池窑炉包括窑炉主体以及与窑炉主体连通的通路，通路为H型。一种生产空心连续玄武岩纤维的方法，将熔化的玄武岩液体通入上述生产空心连续玄武岩纤维拉丝漏板上，玄武岩液体的液面高度低于内管延伸出漏板本体的高度。能够生产出高品质的空心连续玄武岩纤维。
The invention provides a production hollow continuous basalt fiber drawing bushing, a production hollow continuous basalt fiber drawing bushing, comprising a bushing body and a bushing set on the bushing body; the bushing comprises an inner tube and an outer tube, and the inner tube An annular flow channel cavity is arranged between the outer tube and the inner tube; one end of the inner tube close to the upper surface of the leakage plate body extends out of the surface of the leakage plate body. A kiln structure for producing hollow continuous basalt fibers comprises a kiln and the above-mentioned hollow continuous basalt fiber drawing bushings. The kiln includes a main body of the kiln and a passage communicating with the main body of the kiln. A method for producing hollow continuous basalt fiber, the molten basalt liquid is passed into the above-mentioned production hollow continuous basalt fiber drawing bushing, and the liquid level of the basalt liquid is lower than the height of the inner tube extending out of the bushing body. Can produce high-quality hollow continuous basalt fibers.
Description
Technical Field
The invention relates to the technical field of basalt fiber production equipment, in particular to a structure and a method for producing a hollow continuous basalt fiber drawing bushing plate and a tank furnace.
Background
The mass density of the hollow continuous basalt fibers can be reduced to 1-1.4 g/m2, the chopped fibers compounded with the resin can float in the air for a long time, and the hollow continuous basalt fibers have a good application prospect in light weight of aviation, traffic, automobiles and motor cars.
The existing basalt fiber is in a solid state, and a single-discharge-nozzle wire drawing plate is adopted. Because the density of the continuous basalt fiber is higher, the application advantages and high added value of the continuous basalt fiber cannot be displayed, and the application range is limited. The single-discharge-nozzle wire-drawing bushing plate process for producing the common basalt fiber has low requirements on the melting quality of the basalt, and cannot produce the hollow basalt fiber.
The patent with the application number of CN202010260278.8 discloses a process for manufacturing a basalt capillary tube by a drawing method, wherein an air pressure pipe is arranged in the middle of a discharge spout, basalt melt liquid flows out through the discharge spout and is drawn by a drawing machine below, a proper amount of inert gas is blown out from an intermediate air pipe to form hollow and cooled fiber while columnar fiber is formed, a coater is arranged on the outer side of the fiber to coat a modifier on the surface of a micro tube, and the hollow basalt micro tube with infinite length is manufactured after being polished by a high-temperature polishing system.
However, when the air tube is used for blowing out the hollow fiber, the air flow in the tube is easy to vibrate, the air flow fluctuates, the inner diameter and the outer diameter of the hollow fiber fluctuate, and the quality of the hollow fiber is unstable. Meanwhile, inert gas is used for blowing, so that the cost is high.
In recent years, a process for melting basalt by a tank furnace method has attracted more and more attention because of a large amount of basalt that can be melted. However, the problem of uneven basalt melting is also aggravated while the melting space of the tank furnace method is large, the high-quality basalt liquid is difficult to manufacture, the subsequent drawing process is influenced due to the poor quality of the basalt liquid, and the hollow continuous basalt fiber cannot be produced.
Disclosure of Invention
The first purpose of the invention is to provide a production method of a hollow continuous basalt fiber bushing, which can produce uniform and high-quality hollow basalt fibers without blowing inert gas;
the second purpose of the invention is to provide a tank furnace structure for producing hollow continuous basalt fiber, which has good basalt melting effect and ensures the homogenization of basalt liquid;
a third object of the present invention is to provide a method for producing hollow continuous basalt fiber, which is capable of producing the above-mentioned excellent hollow basalt fiber.
The invention is realized by the following technical scheme:
a bushing for producing hollow continuous basalt fiber drawing wires comprises a bushing body and a bushing tip arranged on the bushing body;
the discharge spout comprises an inner pipe and an outer pipe, and an annular flow passage cavity is arranged between the inner pipe and the outer pipe; one end of the inner pipe close to the upper surface of the bushing plate body extends out of the surface of the bushing plate body.
Furthermore, the upper end surface of the outer pipe and the upper surface of the bushing body are positioned on the same horizontal plane.
Furthermore, the discharge spout is of a conical structure, and the diameter of one end, close to the bushing body, of the discharge spout is larger than that of one end, far away from the bushing body, of the discharge spout.
Furthermore, a plurality of supporting bars are arranged in the discharge spout, one end of each supporting bar is fixedly connected with the outer wall of the inner tube, and the other end of each supporting bar is fixedly connected with the inner wall of the discharge spout.
Furthermore, the supporting bars are arranged close to the upper surface of the bushing body.
Furthermore, the number of the supporting bars is three, and the included angle between every two supporting bars is 120 degrees.
Furthermore, the inner diameter of the discharge spout is 6-12 mm, and the inner diameter of the inner pipe is 3-8 mm.
A tank furnace structure for producing hollow continuous basalt fibers comprises a tank furnace and the hollow continuous basalt fiber drawing bushing produced according to any one of claims 1 to 5, wherein the tank furnace comprises a furnace main body and a passage communicated with the furnace main body, and the passage is H-shaped.
Further, the kiln main body comprises a pure oxygen combustor, natural gas is sprayed out of the center of the pure oxygen combustor, and oxygen is sprayed out of the periphery of the pure oxygen combustor.
Furthermore, a fluxing electrode is arranged at the bottom of the kiln body.
And the system further comprises an intelligent control system, wherein the intelligent control system is used for controlling one or more of bubbling at the bottom of the pool, measuring the temperature of the kiln, measuring the pressure of the kiln, measuring the height of the liquid level, controlling the standby electrode and controlling the combustion proportion.
A method for producing hollow continuous basalt fibers is characterized in that molten basalt liquid is introduced onto the bushing for producing the hollow continuous basalt fibers, and the liquid level of the basalt liquid is lower than the height of an inner pipe extending out of a bushing body.
The technical scheme of the invention at least has the following advantages and beneficial effects:
(1) the invention provides a bushing for producing hollow continuous basalt fiber drawing wires, wherein a double-layer discharge spout is arranged on the bushing, so that air is automatically sucked, and high-quality hollow continuous basalt fibers are stably formed;
(2) the invention provides a tank furnace structure for producing hollow continuous basalt fibers, which can uniformly melt basalt and is beneficial to wire drawing;
(3) the invention provides a method for producing hollow continuous basalt fibers, which can produce high-quality hollow continuous basalt fibers with light weight, small dielectric constant, low dielectric loss, large bending rigidity, large compressive strength and good wave-absorbing and wave-transmitting properties.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a bushing tip for producing a hollow continuous basalt fiber bushing plate according to embodiment 1 of the present invention;
FIG. 2 is a top view of a bushing tip for producing a hollow continuous basalt fiber bushing provided in example 1 of the present invention;
FIG. 3 is a schematic structural diagram of a bushing for producing hollow continuous basalt fiber filaments provided in embodiment 1 of the present invention;
FIG. 4 is a schematic structural diagram of a tank furnace structure for producing hollow continuous basalt fibers, which is provided in embodiment 1 of the present invention.
Icon:
10-a bushing body, 20-a discharge spout, 31-an inner pipe, 32-an outer pipe, 33-a runner cavity, 40-a support bar, 50-a kiln body, 61-a main passage, 62-a secondary passage, 63-a first operation passage, 64-a second operation passage, 71-a horizontal flue and 72-a vertical flue.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of this application is used, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1 to fig. 3, the embodiment provides a bushing for producing hollow continuous basalt fiber filaments, which comprises a bushing body 10 and a bushing tip 20 arranged on the bushing body 10; the discharge spout 20 comprises an inner pipe 31 and an outer pipe 32, and an annular flow passage cavity 33 is arranged between the inner pipe 31 and the outer pipe 32; one end of the inner pipe 31 near the upper surface of the bushing body 10 extends out of the surface of the bushing body 10.
The bushing is provided with a double-layer bushing tip 20, basalt molten liquid flows onto the upper surface of the bushing body 10 and flows out of the runner cavity 33, the inner pipe 31 is communicated with the atmosphere, when the basalt molten liquid flows out rapidly, the pressure in the inner pipe 31 is reduced, and air is automatically sucked from the inner pipe 31 to form hollow continuous basalt fibers;
the vent pipe is simplified, inert gas is not required to be introduced, and the production cost is reduced; the faster the wire drawing speed is, the faster the air suction speed is, the thinner the fiber pipe wall is, the inner diameter and the outer diameter of the fiber pipe are only determined by the wire drawing speed, the control is simplified, and the quality of the produced hollow basalt continuous fiber is high.
Specifically, the flow channel cavity 33 is vertically arranged, and the cross section of the flow channel cavity 33 along the length direction is two symmetrical rectangles. So that the basalt liquid flows uniformly in the runner cavity 33 and the drawn basalt fiber filaments are more uniform.
In this embodiment, the upper end surface of the outer tube 32 and the upper surface of the bushing body 10 are located on the same horizontal plane. The upper end surface of the outer pipe 32 is flush with the bushing body 10, so that basalt liquid can conveniently flow down from the flow passage cavity 33, and the bushing body 10 is easy to clean.
In this embodiment, the outer tube 32 has a tapered structure, and the diameter of the end of the outer tube 32 close to the bushing body 10 is larger than the diameter of the end far from the bushing body 10. The conical outer tube 32 is beneficial to heat dissipation, and can also improve the strength of the root of the outer tube 32, reduce the deformation of the outer tube 32 and improve the operation stability.
In this embodiment, a plurality of support bars 40 are disposed in the discharge spout 20, one end of each support bar 40 is fixedly connected to the outer wall of the inner tube 31, and the other end is fixedly connected to the inner wall of the outer tube 32. The support bar 40 fixes the inner tube 31 within the outer tube 32 such that the central axis of the inner tube 31 coincides with the central axis of the outer tube 32 to ensure uniform sidewall thickness of the hollow continuous fibers.
In this embodiment, the supporting bars 40 are disposed near the upper surface of the bushing body 10. The upper surface temperature of bushing body 10 is high, and the basalt liquid mobility is strong, and support bar 40 sets up the position that is close to bushing body 10 upper surface, can not influence the continuity of cellosilk.
In this embodiment, three support bars 40 are provided, and an included angle between two adjacent support bars 40 is 120 °. Each brace bar 40 should be of equal length so that the inner tube 31 is centered just above the outer tube 32. The three support bars 40 are uniformly distributed, and can play a good role in supporting the inner tube 31.
In this embodiment, the inner diameter of the outer tube 32 is 6-12 mm, and the inner diameter of the inner tube 31 is 3-8 mm. The hollow basalt fiber with the diameter of 7-13 mu m can be manufactured by using the discharge spout 20 with the size.
In this embodiment, the bushing body 10 is provided with a plurality of pieces. A plurality of bushing bodies 10 are spliced together, so that the area of the bushing is enlarged, and the production efficiency is improved.
In this embodiment, 1-2400 discharge spouts 20 are disposed on a bushing body 10. The discharge spouts 20 are uniformly distributed on the bushing body 10, a certain number of the discharge spouts 20 can meet certain yarn count specification requirements when working at the same time, and the number of the specific discharge spouts can be adjusted according to the yarn count specification requirements.
In this embodiment, the bushing body 10 is made of platinum-rhodium alloy. The platinum-rhodium alloy has better high temperature resistance, corrosion resistance, oxidation resistance, high strength and other properties, and is suitable for being used as a material of the basalt fiber wire drawing bushing.
As shown in fig. 4, the present embodiment further provides a tank furnace structure for producing hollow continuous basalt fiber, which includes a tank furnace and the above-mentioned bushing for producing hollow continuous basalt fiber, the tank furnace includes a furnace main body 50 and a passage communicated with the furnace main body 50, and the passage is H-shaped.
The H-shaped passage includes a main passage 61, a sub passage 62, a first operation passage 63, and a second operation passage 64, one end of the main passage 61 communicates with the kiln body 50, the other end communicates with the sub passage 62 and the first operation passage 63, one end of the sub passage 62 away from the main passage 61 communicates with the second operation passage 64, and the first operation passage 63 and the second operation passage 64 are stacked in two in the longitudinal direction of the main passage 61.
Alternatively, the passage may be designed in various patterns such as "dry" type, "king" type, "earth" type, and the like.
The basalt liquid in the kiln main body 50 flows through each passage, the clarification process is long, the basalt liquid stays in the kiln for a long time, and the basalt liquid is suitable for producing refractory minerals and basalt liquid with high quality requirements.
A horizontal flue 71 and a vertical flue 72 are further arranged on one side of the kiln main body 50 away from the passage, one end of the horizontal flue is communicated with the kiln main body 50, and the other end of the horizontal flue is communicated with the vertical flue 72.
In this embodiment, the kiln body 50 includes a pure oxygen burner, and the center of the pure oxygen burner sprays natural gas and the periphery sprays oxygen. Oxygen surrounds the natural gas from all around and can reach better mixed effect, can burn completely when the air excess coefficient is 2 ~ 3, can control the length of flame through the flow coin of adjusting fuel and oxygen.
In this embodiment, the bottom of the kiln body is provided with a fluxing electrode. The fluxing electrode is used as a standby heating mode, and the temperature stability can be ensured by adjusting the use of electric fluxing and natural gas when the kiln is started or in emergency.
In this embodiment, the system further comprises an intelligent control system, wherein the intelligent control system is used for controlling one or more of bubbling at the bottom of the tank, measuring the temperature of the kiln, measuring the pressure of the kiln, measuring the height of the liquid level, controlling the standby electrode and controlling the combustion proportion. The intelligent control system ensures that the infusible basalt liquid can be homogenized, thereby being beneficial to wire drawing.
A method for producing hollow continuous basalt fibers is characterized in that molten basalt liquid is introduced onto the bushing for producing the hollow continuous basalt fibers, and the liquid level of the basalt liquid is lower than the height of the inner pipe 31 extending out of the bushing body 10.
The basalt liquid flows down from the inner pipes 31 on the bushing, the center of each inner pipe 31 can automatically suck air, and high-quality hollow continuous basalt fibers are formed through wire drawing, and the inner diameter and the outer diameter of the fiber filaments are stable.
Experimental example 1
Molten basalt liquid is introduced into the hollow continuous basalt fiber drawing bushing produced in example 1, hollow continuous basalt fibers are produced according to the method for producing the hollow continuous basalt fibers in example 1, and the obtained product is subjected to quality test, and the results are shown in the following table:
TABLE 1 hollow continuous basalt fiber quality test results
| Test items | Example 1 |
| Tensile Strength (N/tex) | 0.85 |
| Breaking strength (Mpa) | 2784 |
| Appearance of the product | Uniformity |
| Thickness of | 10μm |
| Density of | 1.32 |
From the above results, it can be seen that the hollow continuous basalt fiber produced by the present invention has high tensile strength and breaking strength, uniform filament, thin thickness, and density about 50% lower than that of the standard basalt fiber.
In conclusion, the structure and the method for producing the hollow continuous basalt fiber drawing bushing and the tank furnace provided by the embodiment can produce high-quality hollow continuous basalt fibers.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The bushing for producing the hollow continuous basalt fibers is characterized by comprising a bushing body (10) and a bushing tip (20) arranged on the bushing body (10);
the discharge spout (20) comprises an inner pipe (31) and an outer pipe (32), and an annular flow passage cavity (33) is arranged between the inner pipe (31) and the outer pipe (32); one end of the inner pipe (31) close to the upper surface of the bushing body (10) extends out of the surface of the bushing body (10).
2. The production hollow continuous basalt fiber drawing bushing according to claim 1, wherein the upper end surface of the outer pipe (32) is located at the same level as the upper surface of the bushing body (10).
3. The production hollow continuous basalt fiber drawing bushing according to claim 1, wherein the outer tube (32) is of a conical structure, and the diameter of the end of the outer tube (32) close to the bushing body (10) is larger than the diameter of the end far from the bushing body (10).
4. The production hollow continuous basalt fiber drawing bushing according to claim 1, wherein a plurality of support bars (40) are arranged in the outer pipe (32), one end of each support bar (40) is fixedly connected with the outer wall of the inner pipe (31), and the other end of each support bar is fixedly connected with the inner wall of the outer pipe (32).
5. The production hollow continuous basalt fiber drawing bushing according to claim 4, wherein the support bars (40) are provided near the upper surface of the bushing body (10).
6. The production hollow continuous basalt fiber bushing according to claim 4, wherein the number of the support bars (40) is three, and the included angle between two adjacent support bars (40) is 120 °.
7. The production hollow continuous basalt fiber bushing according to claim 1, wherein the inner diameter of the outer pipe (32) is 6 to 12mm, and the inner pipe (31) is 3 to 8 mm.
8. The tank furnace structure for producing the hollow continuous basalt fibers is characterized by comprising a tank furnace and the hollow continuous basalt fiber drawing bushing for producing the hollow continuous basalt fibers according to any one of claims 1 to 5, wherein the tank furnace comprises a furnace main body (50) and a passage communicated with the furnace main body (50), and the passage is H-shaped.
9. The tank furnace structure for producing the hollow continuous basalt fiber according to claim 8, wherein the furnace body (50) comprises a pure oxygen burner, a fluxing electrode and an intelligent control system, wherein natural gas is sprayed out of the center of the pure oxygen burner, and oxygen is sprayed out of the periphery of the pure oxygen burner;
the fluxing electrode is arranged at the bottom of the kiln body;
the intelligent control system is used for controlling one or more of bubbling at the bottom of the pool, measuring the temperature of the kiln, measuring the pressure of the kiln, measuring the height of the liquid level, controlling the spare electrode and controlling the combustion proportion.
10. A method for producing hollow continuous basalt fibers is characterized in that molten basalt liquid is introduced onto the bushing for producing the hollow continuous basalt fibers according to any one of claims 1 to 5, and the liquid level of the basalt liquid is lower than the height of the inner pipe (31) extending out of the bushing body (10).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117486481A (en) * | 2023-11-13 | 2024-02-02 | 京仪股份有限公司 | A kind of fiberglass drawing leakage plate |
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