CN117029427A - Wet spinning drying device - Google Patents
Wet spinning drying device Download PDFInfo
- Publication number
- CN117029427A CN117029427A CN202311017423.XA CN202311017423A CN117029427A CN 117029427 A CN117029427 A CN 117029427A CN 202311017423 A CN202311017423 A CN 202311017423A CN 117029427 A CN117029427 A CN 117029427A
- Authority
- CN
- China
- Prior art keywords
- air
- drying cylinder
- drying
- wet spinning
- air guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001035 drying Methods 0.000 title claims abstract description 94
- 238000002166 wet spinning Methods 0.000 title claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007664 blowing Methods 0.000 abstract description 5
- 238000013021 overheating Methods 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000001112 coagulating effect Effects 0.000 description 7
- 238000009987 spinning Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- VGTPCRGMBIAPIM-UHFFFAOYSA-M sodium thiocyanate Chemical compound [Na+].[S-]C#N VGTPCRGMBIAPIM-UHFFFAOYSA-M 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/001—Drying and oxidising yarns, ribbons or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
- F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
- F26B23/06—Heating arrangements using electric heating resistance heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to the technical field of wet spinning drying devices, in particular to a wet spinning drying device; the spiral air guide groove is arranged, so that the air quantity near the discharge port end is maximum, the spiral air guide groove is designed into a structure with larger screw pitch, the air quantity is gradually reduced after the subsequent multi-stage flow distribution through the air guide plate, and correspondingly, the spiral air guide groove is designed into a structure with gradually reduced screw pitch, so that the spiral air guide groove near the feed port end is distributed more tightly, the problem of lower hot air quantity caused by lower air quantity is overcome, through the structure, hot air can be uniformly distributed in the drying cylinder and uniformly guided into the cavity, wires passing through the cavity are uniformly and efficiently dried in all directions, the hot air can be closer to the wires by arranging the smaller inner diameter of the drying cylinder, and the hot air is fully utilized by the wires, so that the waste of heat energy is avoided; and can avoid the direct blowing of hot air to the silk thread and the influence of local overheating of the silk thread on the quality of the silk thread.
Description
Technical Field
The invention relates to the technical field of wet spinning drying devices, in particular to a wet spinning drying device.
Background
In the wet spinning production process, a spinning nozzle is required to be arranged in a coagulating bath box body, spinning solution is guided to the spinning nozzle through a pipeline, and after spinning is performed by the spinning nozzle, the spinning solution is dried in a natural airing or drying mode after coagulating by the coagulating bath;
the natural drying efficiency is low, the silk thread is guided in multiple stages by the multistage godet to ensure the time of full exposure in the air to ensure the thorough drying, and then the silk thread is collected by winding the silk thread by the winding roller. This approach requires a large space and has a low drying efficiency.
The Chinese patent with the publication number of CN211823669U discloses a drying device for wet spinning, which comprises a drying box body, a warm air blower, a blowing port fixing frame, a blowing port, a drying lamp, an inclined drying lamp and a godet, wherein the silk thread is guided into the relatively airtight drying box body and is dried through the warm air blower and the drying lamp.
Therefore, there is a need for improved wet spinning drying apparatus that improves the drying uniformity and drying efficiency of wet spinning.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: there is a need for improved wet spinning drying apparatus to improve the drying uniformity and drying efficiency of wet spinning.
In order to solve the technical problems, the invention adopts the following technical scheme:
the wet spinning drying device comprises a drying cylinder, a warm air blower and an air deflector, wherein a cylindrical cavity is arranged in the drying cylinder, a spiral air guide groove is formed in the inner wall of the drying cylinder, and the screw pitch of the spiral air guide groove is gradually increased from a feed port end to a discharge port end;
the air outlet of the warm air blower faces to the discharge port end of the spiral air guide groove;
the air deflectors are arranged on the inner wall of the drying cylinder in a circumferential array mode, extend into the spiral air guide grooves, and gaps exist between the air deflectors and the bottoms of the spiral air guide grooves.
Further, in the wet spinning drying device structure, the air deflector is parallel to the axis of the drying cylinder.
Further, in the wet spinning drying device structure, an included angle between the air deflector and the normal direction of the drying cylinder at the position of the air deflector is 20-40 degrees, and the inner side end of the air deflector is inclined towards the air guiding direction of the spiral air guiding groove.
Further, in the wet spinning drying device structure, the depth of the air deflector extending into the spiral air guide groove is one third of the total depth of the spiral air guide groove.
Further, in the wet spinning drying device structure, the drying device further comprises a first godet which is respectively positioned outside the feeding end of the drying cylinder, and a second godet which is positioned outside the discharging end of the drying cylinder, so that the silk thread coaxially passes through the drying cylinder under the guidance of the first godet and the second godet.
Further, in the wet spinning drying device structure, a heat insulation layer is arranged on the outer wall of the drying cylinder.
Furthermore, in the wet spinning drying device structure, the drying cylinders are distributed with a plurality of connecting holes in a circumferential array, and heating wires are arranged in the connecting holes in a penetrating manner.
The invention has the beneficial effects that: in the wet spinning drying device structure, the spiral air guide groove is arranged, so that the air quantity near the discharge port end is the largest, the structure with larger screw pitch is designed, the air quantity is gradually reduced after the subsequent multi-stage flow distribution through the air guide plate, and correspondingly, the structure with gradually reduced screw pitch of the spiral air guide groove is designed, so that the spiral air guide groove near the feed port end is distributed more tightly, the problem of lower hot air quantity caused by less air quantity is solved, the hot air can be uniformly distributed in the drying cylinder through the structure, the hot air can be uniformly guided into the cavity, the silk threads passing through the cavity can be uniformly and efficiently dried in all directions, the hot air can be closer to the silk threads through the arrangement of the smaller inner diameter of the drying cylinder, the silk threads can be fully utilized, and the waste of heat energy is avoided; and can avoid the direct blowing of hot air to the silk thread and the influence of local overheating of the silk thread on the quality of the silk thread.
Drawings
FIG. 1 is a schematic view showing a partial structure of a wet spinning drying apparatus according to embodiment 1 of the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1;
fig. 3 is a view showing the direction of the outlet end of the drying cylinder of a wet spinning drying apparatus according to example 1 of the present invention;
FIG. 4 is a cross-sectional view taken along the direction B of FIG. 3;
fig. 5 is a view showing the direction of the outlet end of the drying cylinder of a wet spinning drying apparatus according to example 1 of the present invention;
fig. 6 is a schematic structural view of a wet spinning device according to embodiment 2 of the present invention;
description of the reference numerals:
1. a drying cylinder; 11. a cavity; 12. a spiral wind guide groove; 13. a thermal insulation layer; 14. heating wires;
2. an air deflector;
3. a first godet;
4. a second godet;
5. a silk thread;
6. a coagulation bath;
7. a spinneret.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Example 1
Referring to fig. 1 and fig. 5, a wet spinning drying device comprises a drying cylinder 1, a fan heater and an air deflector 2, wherein a cylindrical cavity 11 is arranged in the drying cylinder 1, a spiral air guide groove 12 is arranged on the inner wall of the drying cylinder 1, and the pitch of the spiral air guide groove 12 is gradually increased from a feed port end to a discharge port end;
the air outlet of the warm air blower faces to the discharge port end of the spiral air guide groove 12;
the air deflectors 2 are arranged on the inner wall of the drying cylinder 1 in a circumferential array, the air deflectors 2 extend into the spiral air guide grooves 12, and gaps exist between the air deflectors 2 and the bottoms of the spiral air guide grooves 12.
In this embodiment, the wire 5 to be dried is guided to pass through the cavity 11 of the drying cylinder 1 from the axial direction of the drying cylinder 1, the hot air generated by the fan heater is blown in from the discharge port end of the spiral air guide groove 12, and flows spirally along the spiral air guide groove 12, when passing through the air guide plate 2, part of the hot air is guided into the cavity 11 by the air guide plate 2, and part of the hot air continues to flow spirally from the gap between the air guide plate 2 and the air guide groove towards the end of the feed port, and when passing through the air guide plate 2, part of the hot air is guided into the cavity 11 again by the air guide plate 2. And can avoid the direct blowing of the hot air to the silk thread 5 and avoid the influence of local overheating of the silk thread 5 on the quality of the silk thread 5.
In this embodiment, the air deflector 2 is parallel to the axis of the dryer cylinder 1.
In this embodiment, the included angle between the air deflector 2 and the normal direction of the drying cylinder 1 at the position where the air deflector 2 is located is 20-40 degrees, and the inner side end of the air deflector 2 is inclined towards the air guiding direction of the spiral air guiding groove 12.
In this embodiment, referring to fig. 5, the included angle between the air deflector 2 and the normal direction of the drying cylinder 1 where the air deflector 2 is located is an angle α, and the inclined angle makes the hot air not blow directly against the middle filament 5 under the guidance of the air deflector 2, but is guided to the next air deflector 2, so as to form circulating air around the periphery of the filament 5, thereby improving the uniformity of heating of the filament 5, and the specific wind direction can refer to the arrow in fig. 5.
In this embodiment, the depth of the air deflector 2 extending into the spiral air guiding groove 12 is one third of the total depth of the spiral air guiding groove 12.
In this embodiment, the hot air can be further ensured to be uniformly dispersed in the drying cylinder 1, and the drying uniformity and efficiency of the silk thread 5 are improved.
Referring to fig. 6, in this embodiment, the drying device further includes a first godet 3 located outside the feeding end of the drying cylinder 1, and a second godet 4 located outside the discharging end of the drying cylinder 1, so that the filament 5 coaxially passes through the drying cylinder 1 under the guidance of the first godet 3 and the second godet 4.
In this embodiment, the outer wall of the drying cylinder 1 is provided with a heat insulating layer 13. The heat insulating layer 13 may be made of a heat insulating paint or other heat insulating material, such as heat insulating cotton, coated on the surface of the drying cylinder 1. Thereby can lock the heat in the drying barrel, energy-conserving and promote drying efficiency.
In this embodiment, the drying cylinder 1 is provided with a plurality of connection holes in a circumferential array, and the heating wires 14 are inserted into the connection holes.
In the above embodiment, referring to fig. 5, by providing the connection hole and penetrating the heating wire 14, the drying cylinder 1 can be heated in an auxiliary manner, and the drying efficiency can be further improved.
Example 2
Referring to fig. 1 to 6, a wet spinning apparatus includes the wet spinning drying apparatus described in embodiment 1, and referring to fig. 6, the wet spinning apparatus includes a coagulation bath 6, a spinneret 7, and guide rolls, wherein the spinneret 7 is disposed in the coagulation bath 6, and a spinning solution extruded from the spinneret 7 is coagulated in a trickle or coagulated and chemically reacted to form a solution of fibers. For example, when the polyacrylonitrile fiber is wet-spun by taking sodium thiocyanate as a solvent, dilute sodium thiocyanate solution can be used as a coagulating bath; the viscose fiber uses aqueous solution of sulfuric acid, sodium sulfate and the like as coagulating bath, sodium sulfate plays a role of coagulating, sulfuric acid plays a role of chemical reaction to coagulate the silk thread 5, then the silk thread 5 is guided out of the coagulating bath 6 through a guiding roller, and is guided into the drying cylinder 1 through the first godet 3 to be dried, and then is guided into the winding roller to be collected through the second godet 4 and the subsequent guiding roller.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (7)
1. The wet spinning drying device is characterized by comprising a drying cylinder, a warm air blower and an air deflector, wherein a cylindrical cavity is arranged in the drying cylinder, a spiral air guide groove is formed in the inner wall of the drying cylinder, and the screw pitch of the spiral air guide groove is gradually increased from a feed port end to a discharge port end;
the air outlet of the warm air blower faces to the discharge port end of the spiral air guide groove;
the air deflectors are arranged on the inner wall of the drying cylinder in a circumferential array mode, extend into the spiral air guide grooves, and gaps exist between the air deflectors and the bottoms of the spiral air guide grooves.
2. The wet spinning drying apparatus according to claim 1, wherein the air deflector is parallel to the axis of the drying cylinder.
3. The wet spinning drying device according to claim 2, wherein an included angle between the air deflector and a normal direction of the drying cylinder at the position of the air deflector is 20-40 degrees, and an inner side end of the air deflector is inclined to an air guiding direction of the spiral air guiding groove.
4. The wet spinning drying apparatus according to claim 1, wherein the depth of the air deflector extending into the spiral air guide groove is one third of the total depth of the spiral air guide groove.
5. The wet spinning drying apparatus of claim 1, further comprising a first godet located outside the feed end of the drying cylinder, and a second godet located outside the discharge end of the drying cylinder, wherein the filaments are guided by the first godet and the second godet to pass coaxially through the drying cylinder.
6. The wet spinning drying apparatus according to claim 1, wherein the outer wall of the drying cylinder is provided with a heat insulating layer.
7. The wet spinning drying device according to claim 1, wherein the drying cylinder is provided with a plurality of connecting holes in a circumferential array, and heating wires are arranged in the connecting holes in a penetrating manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311017423.XA CN117029427A (en) | 2023-08-14 | 2023-08-14 | Wet spinning drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311017423.XA CN117029427A (en) | 2023-08-14 | 2023-08-14 | Wet spinning drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117029427A true CN117029427A (en) | 2023-11-10 |
Family
ID=88624117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311017423.XA Pending CN117029427A (en) | 2023-08-14 | 2023-08-14 | Wet spinning drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117029427A (en) |
-
2023
- 2023-08-14 CN CN202311017423.XA patent/CN117029427A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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