Continuous basalt fiber drawing experiment furnace
By using zoned electromagnetic heating and a spiral heating channel design, the problem of temperature unevenness in the basalt fiber drawing experimental furnace was solved, the melting efficiency and experimental stability were improved, and high-precision temperature management and energy saving were achieved.
Patent Information
- Application Number
- CN202520320987.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The existing basalt fiber drawing experimental furnace lacks temperature zoning function, resulting in uneven temperature distribution, which affects the consistency of melt and the reliability of experimental results. At the same time, the low melting efficiency leads to energy waste and increased experimental costs.
The design employs zoned electromagnetic heating components and a spiral basalt heating channel. It achieves temperature control in different areas through electromagnetic heating principles, gradually adjusts the heating power, and optimizes heat distribution through a spiral structure to ensure temperature uniformity in each zone.
This achieved temperature stability and controllability, improved melting efficiency and experimental quality, reduced energy waste, and ensured the reliability and stability of experimental results.
Smart Images
Figure CN223814959U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of fiber production, concretely relates to a continuous basalt fiber drawing experimental furnace. BACKGROUND
[0002] Basalt fiber is an inorganic mineral fiber prepared by using basalt as raw material through high-temperature melting and drawing process. The advantages of high strength and high modulus, high-temperature resistance and corrosion resistance of basalt fiber make it have wide application prospects in the fields of building, aerospace, automobile, composite material reinforcement and fireproof material.
[0003] The continuous basalt fiber drawing experimental furnace is an experimental device designed for basalt fiber production process research. It converts basalt raw material into continuous basalt fiber through multiple links such as feeding, melting, spinning, drawing, cooling and winding.
[0004] The existing basalt fiber drawing experimental furnace does not have temperature zoning function in the furnace body, which has the following shortcomings:
[0005] (1) Poor uniformity
[0006] The experimental furnace without temperature zoning function cannot realize independent control of different temperature zones, resulting in uneven temperature distribution of the whole furnace body. In the experimental process, some areas of molten basalt may appear overheating phenomenon, while other areas are insufficient in temperature. This temperature non-uniformity will directly affect the consistency of the melt, reduce the reliability of the experimental results, and thus affect the quality and performance of the fiber.
[0007] (2) Low melting efficiency
[0008] Without temperature zoning, the experimental furnace may only maintain a high overall temperature to ensure that all raw materials can be completely melted. This leads to a large amount of energy waste during the experimental process, increasing the experimental cost.
[0009] In view of the problems in the related technology, no effective solution has been proposed so far. UTILITY MODEL CONTENTS
[0010] In view of the problems in the related technology, the utility model puts forward a continuous basalt fiber drawing experimental furnace to overcome the above technical problems existing in the prior art.
[0011] Therefore, the utility model adopts the following specific technical solutions:
[0012] The utility model provides a kind of continuous basalt fiber drawing experimental furnace, including support, the top of support is provided with experimental furnace body, the top of experimental furnace body is provided with furnace cover;The inside middle position of experimental furnace body is provided with fixed column, fixed column is equipped with basalt heating channel outside, and the outside of basalt heating channel and inside experimental furnace body is provided with partition electromagnetic heating component;The bottom of fixed column is provided basalt melt collection component, and the outer bottom of experimental furnace body is provided with drain pipe, and the bottom end of drain pipe is connected with drawing sieve plate, and the top end of drain pipe is communicated with basalt melt collection component.
[0013] Further, to ensure the temperature and pressure stability in the furnace during the experiment, a sealing ring is provided between the inner wall of the furnace cover and the outer wall of the experimental furnace body;The top end of the furnace cover is sequentially provided with a feeding pipe and a smoke exhaust pipe, and the top end of the feeding pipe is provided with a feeding pipe cover.
[0014] Further, to improve the melting efficiency and quality, the basalt heating channel is in a spiral structure and wound on the outer sidewall of the fixed column.
[0015] Further, to avoid uneven melting and low efficiency caused by uneven temperature, the partition electromagnetic heating component includes a first electromagnetic heating coil provided outside the basalt heating channel and inside the experimental furnace body, a second electromagnetic heating coil and a third electromagnetic heating coil sequentially provided at the bottom end of the first electromagnetic heating coil, and the heating power of the first electromagnetic heating coil, the second electromagnetic heating coil and the third electromagnetic heating coil gradually decreases.
[0016] Further, to collect the molten basalt melt and communicate with the drain pipe, the basalt melt collection component includes a melt collection tank provided outside the bottom of the fixed column and below the basalt heating channel, and a plurality of through holes are provided on the sidewall of the bottom of the fixed column, and the drain pipe communicates with the melt collection tank through the through holes.
[0017] The utility model has the advantages of:
[0018] (1) The utility model realizes the heating of basalt raw materials through electromagnetic heating principle, which can more accurately control the temperature of the heating area. In the drawing experiment of the experimental furnace, the stability and controllability of the temperature are crucial. The experimental furnace can set different temperature gradients in different areas according to needs, ensure that the heating power of each area gradually decreases, and avoid the influence of too high or too low temperature on the experimental results. This is very important for experiments that require high-precision temperature management. The design of zoned heating ensures the reasonable distribution of temperature in each zone, improves the melting efficiency of raw materials and reduces energy waste.
[0019] (2) By setting the basalt heating channel, so as to make the heating process has good heat distribution by virtue of its spiral structure, avoids the heat concentrated in a certain part, can improve the melting efficiency and quality; the spiral structure helps the flow of the melt, prevents the material from being blocked due to poor flow, and improves the experimental stability.
[0020] (3) By setting the partition electromagnetic heating assembly, so as to ensure the uniform distribution of the temperature of the high-temperature zone, the medium-temperature zone and the low-temperature zone in the experimental furnace body by gradually reducing the heating power, solve the problem that the existing furnace body has no temperature partition, avoid the uneven melting and low efficiency caused by uneven temperature. Through partition heating, the power can be adjusted according to the needs of different regions, energy waste is reduced, and the overall heating efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0022] Figure 1 is a structure schematic view of a continuous basalt fiber drawing experimental furnace according to an embodiment of the present application;
[0023] Figure 2 is a structure schematic view of an experimental furnace body in a continuous basalt fiber drawing experimental furnace according to an embodiment of the present application;
[0024] Figure 3 is a sectional view at the experimental furnace body in a continuous basalt fiber drawing experimental furnace according to an embodiment of the present application;
[0025] Figure 4 is a structure schematic view of a furnace cover in a continuous basalt fiber drawing experimental furnace according to an embodiment of the present application.
[0026] In the drawings:
[0027] 1, support; 2, experimental furnace body; 3, furnace cover; 4, fixed column; 5, basalt heating channel; 6, partition electromagnetic heating assembly; 601, first electromagnetic heating coil; 602, second electromagnetic heating coil; 603, third electromagnetic heating coil; 7, basalt melt collecting assembly; 701, melt collecting groove; 702, through hole; 8, drain pipe; 9, drawing drain plate; 10, sealing ring; 11, feeding pipe; 12, smoke exhaust pipe; 13, feeding pipe cover. DETAILED DESCRIPTION
[0028] To further illustrate the embodiments, the utility model provides with the drawings, these drawings are part of the utility model disclosure, it mainly used to illustrate the embodiment, and can cooperate with the related description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to represent similar components.
[0029] According to the embodiment of the utility model, a continuous basalt fiber drawing experimental furnace is provided.
[0030] The utility model is further illustrated by combining with the drawings and specific embodiments, as Figures 1-4 The continuous basalt fiber drawing experimental furnace according to the embodiment of the utility model, including support 1, the top of support 1 is provided with experimental furnace body 2, the top of experimental furnace body 2 is provided with furnace cover 3;The inside intermediate position of experimental furnace body 2 is provided with fixed column 4, the outside of fixed column 4 is sleeved with basalt heating channel 5, and the outside of basalt heating channel 5 and located in the inside of experimental furnace body 2 is provided with partition electromagnetic heating assembly 6;The bottom of fixed column 4 is provided with basalt melt collection assembly 7, and the outer bottom of experimental furnace body 2 is provided with drain pipe 8, the bottom end of drain pipe 8 is connected with drawing leak plate 9, and the top end of drain pipe 8 is communicated with basalt melt collection assembly 7.
[0031] By means of the above-mentioned scheme, the utility model realizes the heating of basalt raw materials through electromagnetic heating principle, can more accurately control the temperature of heating area, and the stability and controllability of temperature are crucial in the drawing experiment of experimental furnace;The experimental furnace can set different temperature gradients in different regions according to needs, ensure that the heating power of each region gradually decreases, avoid the influence of excessively high or low temperature on experimental results, which is very important for experiments requiring high-precision temperature management. The design of partition heating ensures the reasonable distribution of temperature in each temperature zone, improves the melting efficiency of raw materials and reduces energy waste. Through the design of continuous feeding, heating, melting, collecting and drawing, the working process of the whole experimental furnace is a continuous production process.
[0032] In one embodiment, for the above furnace cover 3, a sealing ring 10 is arranged between the inner wall of the furnace cover 3 and the outer wall of the experimental furnace body 2; the top end of the furnace cover 3 is sequentially provided with a feeding pipe 11 and a smoke exhaust pipe 12, the top end of the feeding pipe 11 is provided with a feeding pipe cover 13, the inside of the feeding pipe cover 13 is also provided with a sealing structure, after the basalt raw material is added into the experimental furnace body 2, the top of the feeding pipe 11 needs to be sealed through the feeding pipe cover 13, the bottom end of the feeding pipe 11 extends above the basalt heating channel 5, so that gas leakage can be effectively prevented, the temperature and pressure in the furnace during the experiment can be ensured to be stable, and energy loss can be reduced; the smoke exhaust pipe 12 can timely exhaust waste gas or harmful gas in the heating process, so that the experimental environment is kept clean and safe.
[0033] In one embodiment, for the above basalt heating channel 5, the basalt heating channel 5 is in a spiral structure and is wound on the outer side wall of the fixed column 4, so that the spiral structure makes the basalt heating channel 5 have good heat distribution in the heating process, avoids that heat is concentrated in a certain part, and can improve the melting efficiency and quality; the spiral structure is helpful to the flow of the melt, prevents the material from being blocked due to poor flow, and improves the experimental stability.
[0034] The basalt heating channel 5 adopts a spiral structure and is used in cooperation with the external partitioned electromagnetic heating assembly 6, which is helpful to the distribution of heat in the basalt heating channel 5 in the heating process, avoids that heat is concentrated in a certain part, ensures more uniform heating, and prevents local overheating or insufficient heating. The spiral shape is helpful to the flow of the melt, prevents the melt from being blocked due to poor flow in the heating process, and thus improves the melting efficiency and the stability of the experiment.
[0035] In one embodiment, for the above partitioned electromagnetic heating assembly 6, the partitioned electromagnetic heating assembly 6 includes a first electromagnetic heating coil 601 arranged on the outside of the basalt heating channel 5 and located inside the experimental furnace body 2, a second electromagnetic heating coil 602 and a third electromagnetic heating coil 603 are sequentially arranged at the bottom end of the first electromagnetic heating coil 601, and the heating power of the first electromagnetic heating coil 601, the second electromagnetic heating coil 602 and the third electromagnetic heating coil 603 gradually decreases, so that by gradually reducing the heating power, the uniform distribution of the temperature in the high-temperature zone, the medium-temperature zone and the low-temperature zone in the experimental furnace body 2 is ensured, the problem that the existing furnace body has no temperature zoning is solved, and the uneven melting and low efficiency caused by uneven temperature are avoided. Through partitioned heating, the power can be adjusted according to the needs of different regions, energy waste is reduced, and the overall heating efficiency is improved.
[0036] The partition electromagnetic heating assembly 6 realizes zone heating through the first electromagnetic heating coil 601, the second electromagnetic heating coil 602, and the third electromagnetic heating coil 603. The power of the three groups of heating coils decreases in turn, corresponding to the high zone, the medium temperature zone, and the low temperature zone respectively. The electromagnetic induction principle is that when an electric current passes through a conductor, an alternating magnetic field is generated, which penetrates the surrounding materials (such as the metal in the basalt heating channel) and induces an electric current (eddy current) in these materials. Eddy current is the current generated inside the conductor due to the change of the magnetic field. Under the action of the heating coil, the eddy current generates heat. The electromagnetic heating coil can adjust the generated magnetic field strength and change frequency by changing the current frequency and voltage, thereby changing the heating power. Through the step-by-step power adjustment of the electromagnetic heating coil, the temperature distribution of each zone in the furnace body can be realized.
[0037] High temperature zone: The first electromagnetic heating coil 601 is located at the uppermost end of the heating channel, providing higher heating power to quickly melt the basalt raw material. Medium temperature zone: The second electromagnetic heating coil 602 is located in the middle, providing moderate power to maintain the melt in a suitable temperature range to prevent overcooling or overheating. Low temperature zone: The third electromagnetic heating coil 603 is located at the lower end of the heating channel, providing lower heating power to ensure that the melt has an appropriate temperature after leaving the heating zone, facilitating subsequent flow and drawing operations.
[0038] By gradually reducing the heating power, electromagnetic heating can ensure uniform temperature distribution in each temperature zone, thereby solving the problem of no temperature zoning and avoiding uneven melting and low efficiency caused by uneven temperature. In this way, the power can be adjusted according to the needs of different regions, reducing energy waste and improving overall heating efficiency.
[0039] In one embodiment, for the above-mentioned basalt melt collecting assembly 7, the basalt melt collecting assembly 7 includes a melt collecting groove 701 arranged outside the bottom of the fixed column 4 and below the basalt heating channel 5. A plurality of through holes 702 are arranged on the sidewall of the bottom of the fixed column 4, and the drain pipe 8 communicates with the melt collecting groove 701 through the through holes 702, so that the melted basalt melt can be collected into the melt collecting groove 701, and then enter the drain pipe 8 and the drawing leak plate 9 through the through holes 702, and the basalt fiber is drawn by the porous drawing leak plate 9.
[0040] The melt collecting groove 701 collects the melted basalt flowing out of the basalt heating channel 5. The through holes 702 pass through the sidewall of the bottom of the fixed column 4, so that the melt collecting groove 701 is connected with the drain pipe 8. After the melted basalt melt enters the melt collecting groove 701, it flows into the drain pipe 8 through the through holes 702, and finally enters the drawing leak plate 9.
[0041] The bushing 9 is a mature design on the market that distributes the molten basalt melt into multiple fine fiber channels through multiple holes and stretches under controlled pressure and temperature to form fibers.
[0042] In order to facilitate the understanding of the above technical solutions of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail below.
[0043] At the beginning of the experiment, the basalt raw material enters the experimental furnace body 2 through the feeding pipe 11. The sealing ring 10 of the furnace cover 3 prevents gas leakage during feeding. The feeding pipe cover 13 seals the top of the feeding pipe 11 to ensure the stability of the gas and temperature in the furnace. After the raw material enters the spiral basalt heating channel 5, the electromagnetic heating assembly 6 provides heating with different powers in turn, so that the melt is gradually heated in each temperature zone.
[0044] Zonal heating: through the power adjustment of the first electromagnetic heating coil 601 (high temperature zone, between 1200°C and 1500°C, depending on the mineral composition of basalt), the second electromagnetic heating coil 602 (medium temperature zone, between 1000°C and 1200°C, for further heating and maintaining the fluidity of the melt), and the third electromagnetic heating coil 603 (low temperature zone, between 800°C and 1000°C, the main purpose is to ensure uniform temperature transition and avoid overheating or rapid cooling that causes poor melt fluidity), the melt gradually reaches the required temperature in the heating channel. This process not only improves the heating efficiency, but also ensures the uniformity of the melt temperature and avoids uneven temperature.
[0045] Melt collection: the molten basalt flows into the basalt melt collection assembly 7 through the heating channel, the melt collection tank 701 collects the melt, and the melt flows into the drain pipe 8 through the through hole 702, and finally enters the bushing 9.
[0046] Drawing and sizing: the molten basalt melt is uniformly distributed and stretched into fibers through the holes of the bushing 9. Subsequently, through the adjustment of cooling and stretching rate, the final shaped basalt fiber is formed, and the cooling and stretching part is a subsequent process step of the experimental furnace, which is prior art and will not be described in detail here.
[0047] Waste gas emission: during the experiment, the waste gas in the furnace body is discharged in time through the exhaust pipe 12 to keep the experimental environment clean and safe.
[0048] In summary, the utility model discloses a heating principle realizes basalt raw material's heating, can more accurately control the temperature of heating area, and in the wire drawing experiment of experimental furnace, the stability and controllability of temperature are vital, and the experimental furnace can set up different temperature gradient according to different regions, guarantees the heating power of each region to reduce gradually, avoids the influence of temperature excessively high or excessively low to experimental result, and this is very important for the experiment needing high-precision temperature management. The design of partition heating ensures the reasonable distribution of each temperature zone temperature, improves raw material melting efficiency and reduces energy waste. By setting basalt heating channel 5, the heat distribution in the heating process is good by the aid of its spiral structure, avoids the heat concentration in a part, can improve melting efficiency and quality, and the spiral structure helps the flow of melt, prevents the blocking of material due to the poor flow, and improves experimental stability. By setting partition electromagnetic heating assembly 6, the temperature of high temperature zone, medium temperature zone and low temperature zone in experimental furnace body 2 is uniformly distributed by gradually reducing the heating power, solve the problem that the prior furnace body does not have temperature zoning, avoid the melting uneven and inefficiency caused by uneven temperature.
[0049] In the utility model, unless another definite provision and limitation, the terms "installation", "arrangement", "connection", "fix", "screw joint" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be direct connection, also can connect indirectly through intermediate medium, can be the communication of two elements or the interaction of two elements, unless another definite limitation, for the ordinary skilled in the art, can understand the concrete meaning of the above-mentioned terms in the utility model according to the specific situation.
[0050] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that are made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A continuous basalt fiber drawing experimental furnace comprising a support (1), characterized in that, The top end of the support (1) is provided with an experimental furnace body (2), and the top end of the experimental furnace body (2) is provided with a furnace cover (3); The inside middle position of the experimental furnace body (2) is provided with a fixed column (4), the outer side of the fixed column (4) is sleeved with a basalt heating channel (5), and the outer side of the basalt heating channel (5) and located in the inside of the experimental furnace body (2) is provided with a partition electromagnetic heating assembly (6); The bottom of the fixed column (4) is provided with a basalt melt collecting assembly (7), the outer bottom of the experimental furnace body (2) is provided with a drain pipe (8), the bottom end of the drain pipe (8) is connected with a wire drawing leak plate (9), and the top end of the drain pipe (8) is communicated with the basalt melt collecting assembly (7).
2. The continuous basalt fiber drawing experimental furnace according to claim 1, characterized in that, The inner wall of the furnace cover (3) and the outer wall of the experimental furnace body (2) are provided with a sealing ring (10).
3. The continuous basalt fiber drawing experimental furnace according to claim 1, characterized in that, The top end of the furnace cover (3) is sequentially provided with a feeding pipe (11) and an exhaust pipe (12), the top end of the feeding pipe (11) is provided with a feeding pipe cover (13), and the bottom end of the feeding pipe (11) extends above the basalt heating channel (5).
4. The continuous basalt fiber drawing experimental furnace according to claim 1, characterized in that, The basalt heating channel (5) is a spiral structure and is wound on the outer side wall of the fixed column (4).
5. The continuous basalt fiber drawing experimental furnace according to claim 1, characterized in that, The partition electromagnetic heating assembly (6) comprises a first electromagnetic heating coil (601) arranged on the outer side of the basalt heating channel (5) and located in the inside of the experimental furnace body (2), the bottom end of the first electromagnetic heating coil (601) is sequentially provided with a second electromagnetic heating coil (602) and a third electromagnetic heating coil (603), and the heating power of the first electromagnetic heating coil (601), the second electromagnetic heating coil (602) and the third electromagnetic heating coil (603) gradually decreases.
6. The continuous basalt fiber drawing experimental furnace according to claim 1, characterized in that, The basalt melt collecting assembly (7) comprises a melt collecting groove (701) arranged on the bottom outer side of the fixed column (4) and located below the basalt heating channel (5), a plurality of through holes (702) are arranged on the bottom side wall of the fixed column (4), and the drain pipe (8) is communicated with the melt collecting groove (701) through the through holes (702).