Efficient ceramic fiber blowing assembly
The design of the high-efficiency ceramic fiber blowing component has solved the problems of high thermal conductivity, poor fiber crushing and low material utilization in the production of ceramic fiber blankets, realizing high-efficiency blowing and fine fiber production, and improving product performance and equipment life.
Patent Information
- Application Number
- CN202423275041.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing ceramic fiber blanket production suffers from problems such as high thermal conductivity, poor fiber pulverization, high heating shrinkage rate, and low material utilization. Furthermore, the high slag content caused by the spinning process affects product performance and quality.
A high-efficiency ceramic fiber blowing assembly is adopted, including components such as a cotton collection channel, a third nozzle, a second nozzle, a first nozzle, a connector, and a compressed air pipeline. Through multiple blowing and airflow optimization, the airflow rate is controlled. Nozzles made of graphite material are used to improve high temperature resistance and wear resistance, and to ensure connection stability and sealing.
It improves blowing efficiency, reduces slag content, enhances fiber fineness and uniformity, lowers thermal conductivity, extends equipment life, meets different production needs, and ensures product quality and stability.
Smart Images
Figure CN223688516U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of ceramic fiber production, and particularly relates to a high-efficiency blowing assembly for ceramic fiber. BACKGROUND
[0002] The ceramic fiber production process is a process in which granular or powder raw materials are melted in a high-temperature resistance furnace or an electric arc furnace, and the flowing molten slurry is fiberized through high-speed air blowing or high-speed spinning. Most traditional ceramic fiber blankets are produced by the spinning process, which has a large output and low cost, thereby promoting the popularity of ceramic fiber blankets.
[0003] However, the spun fiber has a large diameter and a long length, and contains a large amount of slag balls. Although the spinning process has a slag ball removal device, the total slag ball content is not high, but the fiber contains large slag ball inclusions. After the fiber blanket is made, the thermal conductivity is relatively large, and the larger the thermal conductivity, the poorer the heat preservation performance. Since the fiber is thick and long and has too strong toughness, it is not suitable for being crushed to make ceramic fiber vacuum formed products. In addition, the internal structure of the formed product made by spinning is uneven, which affects the overall performance of the product. The spun fiber is more prone to crystallization degradation, and the heating wire has a large shrinkage rate. When the modular product is used for construction, shrinkage joints are easily formed between the modules during long-term use, and the shrinkage joints are relatively wide and need to be repaired later. Due to the characteristics of the spinning process, the fiberization rate of the raw material is low, which is generally not more than 80% in the industry. The remaining part of the raw material becomes slag balls of different sizes after centrifugal spinning. Many manufacturers will retain most of the slag balls in the fiber to form a blanket in order to pursue production capacity and raw material utilization rate. Although the raw material utilization rate is improved, the quality is also reduced. SUMMARY
[0004] The utility model discloses a kind of ceramic fiber high-efficiency blowing assemblies, to solve the problem that the thermal conductivity of the ceramic fiber blanket produced by the spinning process is large, the fiber is poor in crushing, the heating wire has high shrinkage rate, and the material utilization rate is low.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of ceramic fiber high-efficiency blowing assemblies, including cotton collection channel;
[0006] The third nozzle is arranged at the inner side position of the cotton collection channel, the second nozzle is arranged at the right side position of the third nozzle, the first nozzle is arranged at the right side position of the second nozzle, and the molten slurry channel is arranged at the middle position of the second nozzle and the first nozzle.
[0007] The first connecting piece is arranged at the outer side position of the third nozzle, the second connecting piece is arranged at the outer side position of the first connecting piece, and the compressed air pipe is arranged at the right side position of the first nozzle.
[0008] Preferably, the first nozzle is provided with an inner ring opening at an inner position, an outer ring opening at an outer position, and an air pipe interface at a right position, which is connected with a compressed air pipe.
[0009] Preferably, the second nozzle is provided with an outlet at a front position, an inlet at a rear position, and a thread at an outer middle position.
[0010] Preferably, the third nozzle is provided with an acceleration channel at an inner middle position, and a step at an outer middle position.
[0011] Preferably, the first connector is provided with bolt top wires in an annular array at a top position, and a threaded part at an outer position, which is connected with the step through a clamping connection.
[0012] Preferably, the second connector is provided with a second interface at a top position, which is connected with the compressed air pipe, a first interface at a right position, which is connected with the second nozzle, and a third interface at a left position, which is provided with a thread corresponding to the threaded part at an inner position, and the second connector and the first connector are connected through the threaded part and the third interface.
[0013] Preferably, the second nozzle and the first nozzle are provided with an annular channel at a middle position, and the third nozzle moves forward and backward in the second connector to adjust the area of the annular channel to control the air flow rate of the blowing.
[0014] Preferably, the first connector is provided with a sealing ring at a middle position, which is embedded in the outer step of the third nozzle, the first nozzle, the second nozzle and the third nozzle are made of graphite material, and the inner wall of the second nozzle is polished.
[0015] Compared with the prior art, the ceramic fiber high-efficiency blowing assembly has the following beneficial effects:
[0016] The first nozzle, the compressed air pipeline, the inner ring opening, the outer ring opening, the air pipeline interface, the second nozzle, the third nozzle, the acceleration channel, the step, the bolt top screw, the first connecting piece, the second connecting piece, the second interface, the first interface, the third interface and the annular channel are reasonably designed, the combination of the first nozzle, the second nozzle, the third nozzle, the first connecting piece and the second connecting piece improves the blowing efficiency, the inner ring opening and the outer ring opening in the first nozzle and the acceleration channel in the third nozzle help to optimize the airflow and improve the blowing effect, the third nozzle moves forward and backward in the second connecting piece, the area of the annular channel can be adjusted, so that the air flow rate of blowing can be accurately controlled, different production requirements can be met, the device has high durability, the first nozzle, the second nozzle and the third nozzle are made of graphite material and have good high-temperature resistance and wear resistance, the wear risk is reduced, the inner wall of the second nozzle is polished, the possibility of blockage is further reduced, the service life of the device is improved, the connection is reliable, the bolt top screw at the top of the first connecting piece is connected with the step outside the third nozzle, the second connecting piece is connected with the first connecting piece through threads, the stability of the connection is guaranteed, and meanwhile, the multiple interfaces on the second connecting piece are convenient for being connected and fixed with other components. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structural schematic view of the utility model.
[0018] Figure 2 It is a structural schematic view of the first nozzle in the utility model.
[0019] Figure 3 It is a structural schematic view of the second nozzle in the utility model.
[0020] Figure 4 It is a structural schematic view of the third nozzle in the utility model.
[0021] Figure 5 It is a structural schematic view of the first connecting piece in the utility model.
[0022] Figure 6 It is a structural schematic view of the second connecting piece in the utility model.
[0023] Figure 7 It is a structural schematic view of the sealing ring in the utility model.
[0024] Figure 8 It is a structural schematic view of the annular channel in the utility model.
[0025] In the figure: 1, first nozzle; 2, second nozzle; 3, third nozzle; 4, lint channel; 5, first connecting piece; 6, second connecting piece; 7, compressed air pipe; 8, melt channel; 9, air pipe interface; 10, outer ring opening; 11, inner ring opening; 12, acceleration channel; 13, bolt top screw; 14, threaded portion; 15, first interface; 16, second interface; 17, third interface; 18, sealing ring; 19, annular channel; 20, outlet; 21, inlet; 22, step. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0027] The utility model provides a kind of ceramic fiber high-efficiency blowing assembly as shown in Figures 1-8 The utility model provides a kind of ceramic fiber high-efficiency blowing assembly as shown in
[0028] The third nozzle 3 is provided at the inner side position of the lint channel 4, the second nozzle 2 is provided at the right side position of the third nozzle 3, the first nozzle 1 is provided at the right side position of the second nozzle 2, and the melt channel 8 is provided at the middle position between the second nozzle 2 and the first nozzle 1.
[0029] The first connecting piece 5 is provided at the outer side position of the third nozzle 3, the second connecting piece 6 is provided at the outer side position of the first connecting piece 5, and the compressed air pipe 7 is provided at the right side position of the first nozzle 1.
[0030] The inner ring opening 11 is provided at the inner position of the first nozzle 1, the outer ring opening 10 is provided at the outer side position of the inner ring opening 11, the air pipe interface 9 is provided at the right side position of the first nozzle 1, and the air pipe interface 9 is connected with the compressed air pipe 7.
[0031] The outlet 20 is provided at the front side position of the second nozzle 2, the inlet 21 is provided at the rear side position of the second nozzle 2, and the thread is provided at the outer side middle position of the second nozzle 2.
[0032] The acceleration channel 12 is provided at the inner middle position of the third nozzle 3, and the step 22 is provided at the outer side middle position of the third nozzle 3.
[0033] The bolt top screw 13 is arranged in annular array at the top position of the first connecting piece 5, the threaded portion 14 is provided at the outer side position of the first connecting piece 5, and the bolt top screw 13 is connected with the step 22 in clamping mode.
[0034] The second connecting piece 6 is provided with a second interface 16 at the top position, the second interface 16 is connected with the compressed air pipeline 7, the first connecting piece 6 is provided with a first interface 15 at the right side position, the first interface 15 is connected and fixed with the second nozzle 2, the third interface 17 is provided at the left side position of the second connecting piece 6, the third interface 17 is provided with a thread corresponding to the thread part 14 at the inner side position, and the second connecting piece 6 and the first connecting piece 5 are connected through the thread part 14 and the third interface 17.
[0035] The second nozzle 2 and the first nozzle 1 are provided with an annular channel 19 at the middle position, the third nozzle 3 moves forward and backward in the second connecting piece 6 to adjust the area of the annular channel 19 to control the air flow rate of the blowing.
[0036] The first connecting piece 5 and the third nozzle 3 are provided with a sealing ring 18 at the middle position, the sealing ring 18 is embedded in the external step 22 of the third nozzle 3, the first nozzle 1, the second nozzle 2 and the third nozzle 3 are made of graphite material, and the inner wall of the second nozzle 2 is polished.
[0037] In the embodiment, the specific implementation steps of the ceramic fiber high-efficiency blowing assembly are as follows: an electric arc furnace is used to heat raw materials to melt them into a molten slurry, the molten slurry flows out through specially-made tungsten-iridium flow ports, the flow rate of each flow port is about 100-120 kg / hour, there are three flow ports in total, the first nozzle 1 is installed on the compressed air pipeline, the position of the molten slurry is in the middle of the inner and outer focal points, the second nozzle 2 is installed at the front end of the second connecting piece 6, and the distance between the second nozzle 2 and the first nozzle 1 is set as follows: the near focal point of the first nozzle 1 is at the inlet of the second nozzle 2, and the far focal point of the first nozzle 1 is at the outlet position of the second nozzle 2, the external step of the third nozzle 3 is first installed with the sealing ring 18, then assembled with the first connecting piece 5, and then connected with the second connecting piece 6, when the molten slurry flows down, the fiber lubricant is synchronously mixed in, the inner ring opening 11 of the first nozzle 1 performs the first blowing on the molten slurry, the fiber is preliminarily drawn out and then enters the second nozzle 2, the outer ring opening 10 of the first nozzle 1 performs the second blowing on the preliminarily drawn fiber to further thin the fiber, the fiber after the second blowing simultaneously comes out of the second nozzle 2, the compressed air enters the internal cavity of the connecting piece from the pipeline and then accelerates into the third nozzle 3 through the annular channel formed by the rear end of the second nozzle 2 and the front end of the third nozzle 3 to perform the third blowing on the twice-blown fiber, and finally the fiber is thinned to about 2 um, the size of the annular channel formed by the rear end of the second nozzle 2 and the front end of the third nozzle 3 needs to be balanced and adjusted according to the product and the size of the induced draft negative pressure of the collector box, the three times-blown fine fiber enters the negative pressure collector channel 4 from the outlet of the third nozzle 3 after passing through the acceleration channel of the third nozzle 3, the three times-blown fiber is stable and continuous, and the process is completed before the large crystalline particles of the high-temperature molten slurry are formed, so the slag ball content is better than that of the spun fiber and the traditional blown fiber.
[0038] As Figures 1-8As shown, the first nozzle 1 is provided with an inner ring opening 11, an outer ring opening 10, an air pipe interface 9, and a first connecting piece 5; the second nozzle 2 is provided with an outlet 20, an inlet 21, and a thread; the third nozzle 3 is provided with an accelerating channel 12 and a step 22; the first connecting piece 5 is provided with a bolt top screw 13 and a threaded part 14; the second connecting piece 6 is provided with a second interface 16, a first interface 15, and a third interface 17; the second nozzle 2 and the first nozzle 1 are provided with an annular channel 19; the third nozzle 3 moves forward and backward in the second connecting piece 6 to adjust the area of the annular channel 19 and control the air flow rate.
[0039] Preferably, the structure is reasonably designed, the combination of the first nozzle 1, the second nozzle 2, the third nozzle 3, the first connecting piece 5, and the second connecting piece 6 improves the blowing efficiency, the inner ring opening 11 and the outer ring opening 10 in the first nozzle 1 and the accelerating channel 12 in the third nozzle 3 help to optimize the air flow and improve the blowing effect, which can effectively control the air flow rate, the third nozzle 3 moves forward and backward in the second connecting piece 6 to adjust the area of the annular channel 19 and accurately control the air flow rate, which meets different production needs and has strong durability, the first nozzle 1, the second nozzle 2, and the third nozzle 3 are made of graphite material and have good high-temperature resistance and wear resistance, which reduces the risk of wear and tear, the inner wall of the second nozzle 2 is polished to further reduce the possibility of blockage and improve the service life of the equipment, the connection is reliable, the bolt top screw 13 on the top of the first connecting piece 5 is connected with the step 22 on the outside of the third nozzle 3, and the second connecting piece 6 is connected with the first connecting piece 5 through the thread, which ensures the stability of the connection, at the same time, the multiple interfaces on the second connecting piece 6 are convenient for connection and fixation with other components.
[0040] As Figures 2-5 and Figure 7As shown, the first connecting piece 5 is provided with a sealing ring 18 at the middle position of the third nozzle 3, the sealing ring 18 is embedded in the external step 22 of the third nozzle 3, the first nozzle 1, the second nozzle 2 and the third nozzle 3 are made of graphite material, and the inner wall of the second nozzle 2 is polished.
[0041] Optionally, the advantages are that the sealing of the connection is improved, the leakage of compressed air is prevented, the blowing pressure is stable, the blowing efficiency is improved, meanwhile, the specific installation position of the sealing ring 18 can effectively prevent it from moving during the working process, the long-term stability of the sealing effect is ensured, the graphite material has high-temperature resistance and can work stably in the high-temperature environment of ceramic fiber production, is not easy to deform and damage, and the service life of the nozzle is prolonged, graphite also has good lubricity, can reduce the adhesion of ceramic fiber melt in the nozzle, and reduce the risk of blockage, the inner wall polishing makes the inner wall of the second nozzle 2 smoother, reduces the resistance when the ceramic fiber melt flows in the nozzle, improves the smoothness of blowing, and the smooth inner wall can also reduce the possibility of melt residue, further reduces the risk of blockage, and ensures the long-term stable operation of the blowing assembly.
[0042] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.
Claims
1. A ceramic fiber high-efficiency blowing assembly, comprising a cotton collecting channel (4); A third nozzle (3) is arranged at an inner side of the cotton collecting channel (4), a second nozzle (2) is arranged at a right side of the third nozzle (3), a first nozzle (1) is arranged at a right side of the second nozzle (2), and a smelt channel (8) is arranged at a middle position of the second nozzle (2) and the first nozzle (1). characterized in that A first connecting piece (5) is arranged at an outer side of the third nozzle (3), a second connecting piece (6) is arranged at an outer side of the first connecting piece (5), and a compressed air pipe (7) is arranged at a right side of the first nozzle (1).
2. The ceramic fiber high-efficiency injection assembly of claim 1, wherein: An inner ring opening (11) is arranged at an inner position of the first nozzle (1), an outer ring opening (10) is arranged at an outer side of the inner ring opening (11), an air pipe interface (9) is arranged at a right side of the first nozzle (1), and the air pipe interface (9) is connected with the compressed air pipe (7).
3. A ceramic fiber high efficiency injection assembly according to claim 2, wherein: An outlet (20) is arranged at a front side of the second nozzle (2), an inlet (21) is arranged at a back side of the second nozzle (2), and a screw thread is arranged at an outer middle position of the second nozzle (2).
4. The ceramic fiber high-efficiency injection assembly of claim 3, wherein: An acceleration channel (12) is arranged at an inner middle position of the third nozzle (3), and a step (22) is arranged at an outer middle position of the third nozzle (3).
5. A ceramic fiber high efficiency injection assembly according to claim 4, wherein: Bolt top screws (13) are arranged in an annular array at a top position of the first connecting piece (5), a screw thread part (14) is arranged at an outer side of the first connecting piece (5), and the bolt top screws (13) are connected with the step (22) through clamping.
6. A ceramic fiber high efficiency injection assembly according to claim 5, wherein: A second interface (16) is arranged at a top position of the second connecting piece (6), the second interface (16) is connected with the compressed air pipe (7), a first interface (15) is arranged at a right side of the second connecting piece (6), the first interface (15) is connected and fixed with the second nozzle (2), a third interface (17) is arranged at a left side of the second connecting piece (6), a screw thread corresponding to the screw thread part (14) is arranged at an inner side of the third interface (17), and the second connecting piece (6) and the first connecting piece (5) are connected through the screw thread part (14) and the third interface (17).
7. A ceramic fiber high efficiency injection assembly according to claim 6, wherein: An annular channel (19) is arranged at a middle position of the second nozzle (2) and the first nozzle (1), and the third nozzle (3) is moved forward and backward in the second connecting piece (6) to adjust the area of the annular channel (19) and control the air flow rate of blowing.
8. The ceramic fiber high efficiency injection assembly of claim 1, wherein: A sealing ring (18) is arranged at a middle position of the first connecting piece (5) and the third nozzle (3), the sealing ring (18) is embedded in the outer step (22) of the third nozzle (3), the first nozzle (1), the second nozzle (2) and the third nozzle (3) are made of graphite material, and an inner wall of the second nozzle (2) is polished.