CN210065553U - Centrifugal machine for glass microfiber forming - Google Patents
Centrifugal machine for glass microfiber forming Download PDFInfo
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- CN210065553U CN210065553U CN201920548835.9U CN201920548835U CN210065553U CN 210065553 U CN210065553 U CN 210065553U CN 201920548835 U CN201920548835 U CN 201920548835U CN 210065553 U CN210065553 U CN 210065553U
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Abstract
The utility model provides a centrifugal separator for glass microfiber becomes fibre, including the main shaft, the main shaft is installed on the main shaft body, drive arrangement is connected to the main shaft upper end, lower extreme installation centrifugal nozzle, centrifugal nozzle is the basin column structure, the pelvic floor is and seal down, the aperture has on the basin wall, the basin mouth upwards opens, there is glass liquid induction pipe and interior combustor to pass the main shaft body and accesss to centrifugal nozzle, the chamber of burning has been set up around the main shaft body, there is the annular gap that interior burner and outer burner enclose below the chamber of burning, the annular gap aims at centrifugal nozzle's aperture department, from annular gap blowout air current. The utility model discloses a device structure operation is more stable, and equipment fault rate is low to the unit productivity is improved by a wide margin.
Description
Technical Field
The utility model belongs to glass microfiber manufacture equipment field relates to a centrifuge that is used for glass microfiber fiberization particularly.
Background
The glass microfiber is cotton-shaped short fiber with fiber diameter less than or equal to 5 microns, is also called superfine glass wool, and has two production processes, namely a centrifugal blowing process and a flame blowing process. The centrifugal blowing method has the advantages of large production scale, obviously low energy consumption, easy realization of automatic control and the like, so that the production and the application of the centrifugal blowing method are more and more widely concerned.
The centrifugal blowing process for producing glass microfiber is to stretch molten glass produced in certain recipe into short cotton fiber in required shape through centrifugal blowing process. The composite material has the advantages of good heat insulation performance, A-grade non-inflammability, environmental protection, no pollution, aging resistance and the like, has wide application field, is mainly applied to heat insulation and heat preservation in the fields of buildings, household appliances, transportation and the like at present, and is gradually deeply applied in the fields of plastic reinforcement, filtering materials and the like along with the development progress of the economic society.
The most important equipment used for producing the glass microfiber comprises a centrifuge of a fiber forming process, wherein the centrifuge is direct equipment for preparing glass microfiber with required properties from glass liquid, and the performance of the centrifuge directly determines the quality and the yield of the produced glass microfiber. The centrifugal machine generally adopts an eccentric feeding mode and comprises a transmission system, a combustion system, a blowing system, a water cooling system, relevant accessories and the like. Glass liquid flows into a circular centrifugal nozzle rotating at a high speed through an inlet pipe, a plurality of small holes are arranged on the peripheral wall of the centrifugal nozzle, the glass liquid is transversely thrown out from the small holes under the action of centrifugal force to form primary fibers, meanwhile, high-temperature high-speed air flow which is vertically blown downwards from an annular fire hole is arranged around the centrifugal nozzle, the primary fibers are stretched into secondary fibers, and a required product is finally formed through further stretching and cooling of compressed air.
At present, a centrifugal machine is generally applied to the production of glass wool in the traditional building material industry, but the average fiber diameter of glass microfiber is less than or equal to 5 micrometers due to different application fields and application modes of the glass microfiber, and the fiber tension and the fiber flexibility are required to be better, so that the production of the glass microfiber puts higher requirements on the centrifugal machine. The diameter of a centrifugal nozzle of a traditional centrifugal machine is generally phi 360 or phi 400, and when the centrifugal nozzle is used for producing glass microfiber, the capacity is low and the cost is high; and the production of the glass microfiber generally needs higher blowing air flow temperature, and the traditional centrifugal machine structure has unreasonable and inapplicable parts, so that the centrifugal machine is easy to deform, cause transmission system faults, and cause abnormal phenomena such as circulating cooling water leakage and blockage in the long-term service process, thereby not only influencing the production continuity, but also influencing the stability of the product quality.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, a novel eccentric centrifuge with more reasonable structure, higher productivity and more stable operation needs to be designed aiming at the characteristics of glass microfiber production.
Particularly, the utility model discloses a specific technical scheme as follows:
a centrifugal machine for forming fiber by glass microfiber is characterized in that the centrifugal machine is provided with a main body and a driving device, the main body comprises a main shaft, the main shaft is arranged on a main shaft body, the upper end of the main shaft is connected with the driving device, a centrifugal spray head is arranged at the lower end of the main shaft, the centrifugal spray head is of a basin-shaped structure, the basin bottom is downward and closed, a small hole is formed in the basin wall, the basin opening is upward opened, a glass liquid inlet pipe and an inner burner penetrate through the main shaft body to be led to the centrifugal spray head, a combustion chamber is arranged around the main shaft body, an inner fire hole is arranged below the main shaft body, the combustion chamber is a cavity formed by surrounding the main shaft body by a combustion chamber shell, an outer fire hole is arranged below the combustion chamber shell, an annular gap formed by the inner fire hole and the outer fire hole in a surrounding mode is arranged below the combustion chamber, the annular gap is aligned with the small hole of the centrifugal spray, the nozzle comprises a nozzle and a nozzle chamber, the nozzle chamber is communicated with the air inlet pipe, and combustible gas is input into the combustion cavity through the air inlet pipe.
Preferably, an extender is further arranged below the external fire hole, a spray hole is arranged below the extender and opposite to the glass microfiber thrown out from the small hole of the centrifugal spray head, and a high-pressure air flow is sprayed to the glass microfiber from the spray hole.
In addition, the inner fire hole is integrally arranged below the main shaft body and covers the lower part of the main shaft body.
In another aspect, the combustion chamber is formed by a combustion chamber housing around the main shaft body and lined with a refractory material.
Preferably, the centrifugal nozzle is mounted to the lower end of the main shaft by a centrifugal nozzle mounting tray.
In another preferred scheme, a water bucket is further arranged, the main shaft body, the outer fire hole, the inner fire hole and the nozzle chamber are all provided with circulating cavities, the circulating cavities are communicated with the water bucket through pipelines, and the main shaft body, the outer fire hole, the inner fire hole, the guide pipe and the nozzle chamber are cooled through circulating cooling water.
Preferably, the centrifuge has a shield plate on the top thereof, the shield plate covering the centrifuge body and the driving device.
Preferably, the introduction pipe is attached to the front of the centrifuge body, and the drive device is attached to the rear of the centrifuge body.
The centrifugal machine is more suitable for the production of glass microfiber by improving the structural design, and has the advantages of long continuous operation time, stable and reliable transmission and high water cooling efficiency; when the diameter of the centrifugal nozzle is 600mm and the average diameter of the produced glass microfiber is less than 5 μm, the single machine capacity can reach 350-600kg/h, and the production efficiency of the glass microfiber production is obviously improved.
Drawings
FIG. 1 is a schematic diagram of the general structure of the centrifuge of the present invention;
FIG. 2 is a partial enlarged view of the glass microfiber blow molding region in the centrifuge of the present invention.
In the figure, 1-air inlet pipe, 2-protective plate, 3-nozzle chamber, 4-inlet pipe, 5-main shaft, 6-inner burner, 7-main shaft body, 8-motor, 9-water bucket, 10-nozzle, 11-combustion chamber, 12-extender, 13-outer burner, 14-inner burner, 15-centrifugal nozzle mounting tray, 16-centrifugal nozzle, 17-molten glass, 18-combustion chamber shell, 19-refractory material, 20-glass microfiber, 21-blowing air flow and 22-high pressure air flow.
Detailed Description
The utility model discloses a novel eccentric centrifuge comprises transmission system, combustion system, jetting system, water cooling system and relevant annex etc.. The device comprises a motor, a main shaft and related accessories, a centrifugal sprayer and an installation tray, a main shaft body, a combustion cavity and a shell, a nozzle chamber and a nozzle, a gas and combustion air mixed gas inlet pipe, an inner burner, an inlet pipe, an inner fire hole, an outer fire hole, an extender, a water bucket and related water inlet and outlet pipes, a frame and a protection plate.
The centrifugal nozzle is arranged at the lower end of the main shaft through the mounting tray, the motor is connected with the main shaft through a transmission belt and drives the centrifugal nozzle to rotate at a high speed, the main shaft is arranged on the main shaft body, and water is introduced into the main shaft body for cooling; the main combustion air inlet pipe is arranged on the front side of the centrifuge, mixed gas of fuel gas and combustion-supporting air enters a nozzle chamber in a centrifuge body from the main combustion air inlet pipe and is sprayed into a combustion chamber through a nozzle below the nozzle chamber, the combustion chamber is an annular space defined by a main shaft body poured with refractory materials and a combustion chamber shell, the mixed gas generates high-temperature gas after being fully combusted in the combustion chamber and is sprayed downwards from an annular gap defined by an inner fire hole and an outer fire hole, the inner fire hole is arranged on the lower portion of the main shaft body, the outer fire hole is arranged on the lower portion of the combustion chamber shell, the inner fire hole and the outer fire hole are identical in height, and the inner fire hole; glass liquid flows into the centrifugal nozzle through the inlet pipe, the glass liquid in the centrifugal nozzle is thrown out from small holes in the peripheral side wall of the centrifugal nozzle under the action of centrifugal force, preliminary forming is carried out under the stretching action of blowing air flow, extenders are installed below the outer fire hole and on the periphery of the centrifugal nozzle, the extenders are provided with a plurality of small holes, high-pressure air flow can be sprayed, and glass microfiber is finally prepared by further stretching and cooling fibers subjected to preliminary forming. The water bucket comprises 5 groups of water outlets and 5 groups of water return ports, and circulating water is provided for cooling the main shaft body, the inlet pipe, the nozzle chamber, the inner fire hole and the outer fire hole respectively.
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the novel centrifuge of the utility model comprises a transmission system, a combustion system, a blowing system, a water cooling system, related accessories and the like. The combustion system comprises a main combustion air inlet pipe 1, mixed gas of fuel gas and combustion air enters a nozzle chamber 3 in a centrifuge body from the main combustion air inlet pipe, and is sprayed into a combustion chamber 11 from a nozzle 10 arranged below the nozzle chamber 3, the combustion chamber 11 is an annular space surrounded by a main shaft body 7 poured with refractory materials 19 and a combustion chamber shell 18, and high-temperature gas generated after the mixed gas is fully combusted in the combustion chamber 11 is sprayed downwards from a gap between an inner fire hole 14 and an outer fire hole 13 to form a spraying air flow 21. The molten glass 17 flows into the centrifugal nozzle 16 through the inlet pipe 4, the centrifugal nozzle 16 is installed at the lower end of the main shaft 5 through the centrifugal nozzle installation tray 15, and the motor 8 drives the main shaft 5 and the main shaft 5 drives the centrifugal nozzle 16 to rotate at a high speed. The inner burner 6 may heat the centrifugal nozzle 16 to ensure that the temperature of the centrifugal nozzle 16 is sufficient. The bucket 9 includes 5 delivery ports and 5 return water mouths of group, provides the circulating water and cools off main shaft body 7, induction pipe 4, nozzle chamber 3, interior burner 14, outer burner 13 respectively (not marked in the water circulation pipeline picture), and bucket 9 is fixed on the frame (not marked in the picture) on centrifuge upper portion, and the wheel is installed to the frame both sides and is conveniently removed, and frame upper portion is provided with guard plate 2.
As shown in FIG. 2, with the high-speed rotation of the centrifugal nozzle 16, the molten glass 17 inside is thrown out from the small holes on the peripheral side wall of the centrifugal nozzle 16, and is primarily formed by the drawing action of the blowing air 21. An annular extender 12 is arranged below the outer fire hole 13 and at the periphery of the centrifugal nozzle 16, the extender 12 is provided with a plurality of small holes which can spray high-pressure air flow 22 downwards, and the preliminarily formed fibers are further stretched and cooled to be made into the final product glass microfiber 20.
In one embodiment, the diameter of the centrifugal nozzle 16 can reach phi 500-phi 600mm, the number of the small holes on the peripheral side wall of each centrifugal nozzle 16 can reach 35000-52000, and the diameter of the small holes is phi 0.55 mm-phi 0.85 mm.
In one embodiment, the inner burner 14 is integrally installed at the lower part of the main shaft body 7, which can effectively reduce the heat radiation of the high temperature inside the centrifugal nozzle 16 to the lower part of the main shaft body 7, reduce the heat radiation of the high temperature area at the lower part to the main shaft body and the main shaft transmission device, and reduce the temperature of the main shaft body 7, thereby facilitating the stable operation of the main shaft 7 and the bearing thereof.
In one embodiment, the inner fire hole 14 is made of a stainless steel plate with a thickness of 10mm, the heat resistance is greatly improved, and the thickness of the middle cavity is increased to 30mm, so that more circulating cooling water can be stored to enhance the cooling effect.
In one embodiment, the nozzles 10 are installed at the lower part of the nozzle chamber 3, and 18-24 nozzles 10 can be uniformly distributed along the annular nozzle chamber 3, so that the mixed gas is uniformly distributed and fully combusted in the combustion chamber 11.
In one embodiment, the motor 8 is arranged at the rear side of the centrifuge, namely the opposite side of the inlet pipe, is positioned between the centrifuge main body and the water bucket, the distance between the inlet pipe and the high-temperature glass stream is increased, the temperature of the working environment of the motor 8 is obviously reduced, the faults of the motor 8 are reduced, and the long-term stable operation is ensured.
In one embodiment, the interface of the inner burner 6, the motor 8 and the water bucket 9 are all arranged on the rear side of the centrifuge, the front side layout of the centrifuge is simplified, the operation is convenient, the appearance is simple and attractive, and the number of the inner burners 6 can be set to be 4-6 according to the requirement.
In one embodiment, the diameter of the bearing retainer of the main shaft 5 is phi 90mm, the diameter of the central through hole is phi 25mm, air or water can be used for cooling so as to reduce the temperature of a transmission system, the overall stability of the centrifuge is better when the main shaft and the centrifugal spray head of the centrifuge run at high speed, and the stability and the service life of the main shaft 5 and the centrifugal spray head 16 run at high speed are greatly improved.
In one embodiment, when the diameter of the centrifugal nozzle 16 is phi 600mm, the outer diameter of the inner fire hole 14 is phi 605-phi 612mm, the inner diameter of the outer fire hole 13 is phi 616-phi 632mm, the width of the annular gap enclosed by the inner fire hole 14 and the outer fire hole 13 is 5.5-10mm, and the single machine productivity can reach 350-600kg/h when producing glass microfibers with the average fiber diameter of less than 5 μm.
In one embodiment, the diameter of the orifices of the stretcher 12 is 1.2-2.5 mm and the orifice spacing is 8-20 mm.
The centrifugal machine is more suitable for the production of glass microfiber by improving the structural design, and has the advantages of long continuous operation time, stable and reliable transmission and high water cooling efficiency; when the diameter of the centrifugal nozzle 16 is 600mm and the average diameter of the produced glass microfiber is less than 5 μm, the single machine capacity can reach 350-600kg/h, and the production efficiency of the glass microfiber production is obviously improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.
Claims (8)
1. A centrifugal machine for forming fiber by glass microfiber is characterized in that the centrifugal machine is provided with a main body and a driving device, the main body comprises a main shaft, the main shaft is arranged on a main shaft body, the upper end of the main shaft is connected with the driving device, a centrifugal spray head is arranged at the lower end of the main shaft, the centrifugal spray head is of a basin-shaped structure, the basin bottom is downward and closed, a small hole is formed in the basin wall, the basin opening is upward opened, a glass liquid inlet pipe and an inner burner penetrate through the main shaft body to be led to the centrifugal spray head, a combustion chamber is arranged around the main shaft body, an inner fire hole is arranged below the main shaft body, the combustion chamber is a cavity formed by surrounding the main shaft body by a combustion chamber shell, an outer fire hole is arranged below the combustion chamber shell, an annular gap formed by the inner fire hole and the outer fire hole in a surrounding mode is arranged below the combustion chamber, the annular gap is aligned with the small hole of the centrifugal spray, the nozzle comprises a nozzle and a nozzle chamber, the nozzle chamber is communicated with the air inlet pipe, and combustible gas is input into the combustion cavity through the air inlet pipe.
2. The centrifuge of claim 1, wherein an extender is further provided below the outer burner, and a nozzle hole is provided below the extender at a position opposite to the glass microfiber ejected from the small hole of the centrifugal nozzle, and a high pressure air stream is ejected from the nozzle hole toward the glass microfiber.
3. A centrifuge for fiberizing glass microfibers as defined in claim 1, wherein the inner flame ports are integrally formed below the main shaft body to cover the lower portion of the main shaft body.
4. A centrifuge for fiberizing glass microfibers as defined in claim 1, wherein the combustion chamber is defined by a combustion chamber housing about the main shaft body and is lined with a refractory material.
5. A centrifuge for fiberizing glass microfibers according to claim 1, wherein the centrifugal nozzle is mounted to the lower end of the main shaft by a centrifugal nozzle mounting tray.
6. The centrifuge of claim 1, wherein a water bucket is provided, and the main shaft body, the outer fire hole, the inner fire hole inside and the nozzle chamber are provided with a circulation cavity at the periphery, the circulation cavity is communicated with the water bucket through a pipe, and the main shaft body, the outer fire hole, the inner fire hole, the inlet pipe and the nozzle chamber are cooled by circulating cooling water.
7. The centrifuge of claim 1, wherein a shield plate is provided at an upper portion of the centrifuge, and the shield plate covers the centrifuge body and the driving means.
8. A glass microfiber fiberizer centrifuge according to claim 1, wherein the inlet pipe is installed at a front of the centrifuge body, and the driving means is installed at a rear of the centrifuge body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920548835.9U CN210065553U (en) | 2019-04-22 | 2019-04-22 | Centrifugal machine for glass microfiber forming |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920548835.9U CN210065553U (en) | 2019-04-22 | 2019-04-22 | Centrifugal machine for glass microfiber forming |
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| CN210065553U true CN210065553U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920548835.9U Active CN210065553U (en) | 2019-04-22 | 2019-04-22 | Centrifugal machine for glass microfiber forming |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002739A (en) * | 2019-04-22 | 2019-07-12 | 安徽吉曜玻璃微纤有限公司 | It is a kind of for glass microfiber at fine centrifuge |
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2019
- 2019-04-22 CN CN201920548835.9U patent/CN210065553U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110002739A (en) * | 2019-04-22 | 2019-07-12 | 安徽吉曜玻璃微纤有限公司 | It is a kind of for glass microfiber at fine centrifuge |
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