CN114277452B - Spinning equipment by dry-jet wet spinning method - Google Patents
Spinning equipment by dry-jet wet spinning method Download PDFInfo
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- CN114277452B CN114277452B CN202210092875.3A CN202210092875A CN114277452B CN 114277452 B CN114277452 B CN 114277452B CN 202210092875 A CN202210092875 A CN 202210092875A CN 114277452 B CN114277452 B CN 114277452B
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Abstract
The invention provides spinning equipment adopting a dry-jet wet spinning method, and belongs to the technical field of chemical fiber manufacturing engineering. The spinning device comprises a melt pipeline, a plurality of spinning assemblies, a cooling air pipeline, a coagulating bath and a filament collecting rod, wherein the melt pipeline comprises a first main pipeline and a plurality of first branch pipelines, and the first main pipeline is respectively communicated with the first branch pipelines; the first branch pipelines correspond to the spinning assemblies one by one, and are communicated with the corresponding spinning assemblies, so that spinning melt forms a plurality of groups of spinning streams after passing through the plurality of spinning assemblies; the cooling air pipeline is used for blowing air to the multiple groups of spinning trickle flows through the multidirectional air outlets; the collecting godet rod is arranged in the coagulating bath tank, so that the plurality of groups of spinning streams pass through the collecting godet rod to complete collecting godet. The spinning machine is used for spinning, the productivity is twice of that of the original spinning equipment, and the investment cost and the occupied area are reduced under the production line condition with the same productivity.
Description
Technical Field
The invention relates to the technical field of chemical fiber manufacturing engineering, in particular to spinning equipment adopting a dry-jet wet spinning method.
Background
The spinning method of dry-jet wet spinning is a spinning method which is gradually developed in the 60's of the 20 th century, and has wide application in the chemical fiber industry. The industrial dry-jet wet-spinning method spinning equipment in the prior art mainly has two forms, namely a long-strip-shaped spinneret plate matched with side blowing air and an annular spinneret plate matched with annular blowing air, and has advantages and disadvantages. However, the prior art spinning device adopting the dry-jet wet spinning method has difficulty in combining the advantages of the two forms.
Disclosure of Invention
In view of this, the invention provides a dry-jet wet spinning method spinning device, which is applied to spinning, the spinning capacity is twice of the spinning capacity of the original spinning device, and the investment cost and the occupied area are both reduced under the production line condition with the same capacity, so that the dry-jet wet spinning method spinning device is more suitable for practical use.
In order to achieve the purpose, the technical scheme of the spinning equipment adopting the dry-jet wet spinning method provided by the invention is as follows:
the invention provides spinning equipment adopting a dry-jet wet spinning method, which comprises a melt pipeline (3), a plurality of spinning assemblies (4), a cooling air pipeline (5), a coagulating bath tank (7) and a bundling yarn guide rod,
the melt pipeline (3) comprises a first main pipeline and a plurality of first branch pipelines, and the first main pipeline is communicated with the first branch pipelines respectively;
the first branch pipelines correspond to the spinning assemblies (4) one by one, and are communicated with the corresponding spinning assemblies (4), so that spinning melt forms a plurality of groups of spinning trickle after passing through the spinning assemblies (4);
the cooling air pipeline (5) is used for blowing air to the multiple groups of spinning trickle flows through an air outlet;
the cluster godet rod is arranged in the coagulating bath (7) so that the plurality of groups of spinning streams pass through the cluster godet rod to complete cluster godet.
The dry-jet wet spinning equipment provided by the invention can be further realized by adopting the following technical measures.
Preferably, the plurality of spin packs (4) have the same specification; the first branch pipelines have the same specification.
Preferably, the dry-jet wet-spinning equipment also comprises a metering pump (1) and a metering pump box body (2),
the spinning melt enters the melt pipeline (3) after passing through the metering pump (1) and the metering pump box body (2).
Preferably, the cooling air pipeline (5) comprises a second main pipeline and a plurality of second branch pipelines, and the second main pipeline is respectively communicated with the second branch pipelines.
Preferably, the dry-jet wet-spinning equipment also comprises a cooling air distribution blowing device (6),
the cooling air distribution blowing device (6) comprises a cavity, and the cavity is provided with the air outlet;
the plurality of second branch pipelines are respectively communicated with the cavity.
Preferably, the plurality of second branch pipes are uniformly arranged on the cavity.
Preferably, the dry-jet wet-spinning equipment also comprises two wind shields (9),
the two wind shields (9) are respectively arranged below the two axial ends of the cavity,
the protruding length of the wind shield (9) in the horizontal direction exceeds the farthest end of the spinning fluid, and the bottommost end of the wind shield (9) is positioned below the coagulation bath liquid level of the coagulation bath (7).
Preferably, the dry-jet wet-spinning equipment further comprises a heat-insulating jacket, and the heat-insulating jacket is arranged at the periphery of the melt pipeline (3) and/or the spinning assemblies (4).
Preferably, the dry-jet wet spinning equipment further comprises a heat-insulating jacket, and the heat-insulating jacket is arranged on the periphery of the metering pump box body (2).
Preferably, a medium cavity is arranged in the heat-preservation jacket, and heat-preservation media are filled in the medium cavity.
Preferably, the heat preservation medium is water, and temperature control is realized by controlling water temperature.
Preferably, the dry-jet wet-spinning equipment further comprises a turning rod (11), the turning rod (11) is arranged at the outlet edge of the coagulating bath (7),
and the spinning trickle which finishes the cluster guide wire passes through the steering rod (11) to finish the spinning process.
As a preference, the first and second liquid crystal compositions are,
the cluster godet rod comprises a first cluster godet rod (10), and the multiple groups of spinning streams are all led through the first cluster godet rod (10) to complete cluster godet.
As a preference, the first and second liquid crystal compositions are,
the collecting godet rods comprise a second plurality of collecting godet rods,
and each group of spinning trickle in the multiple groups of spinning trickle passes through at least one bundling yarn guide rod to complete bundling yarn guide.
The dry-spraying wet-method spinning equipment provided by the invention adopts a plurality of sets of strip-shaped spinneret plate assemblies, so that compared with the common strip-shaped spinning equipment, the quantity of the spinneret holes is multiple times of the original quantity. The spinning machine has the capacity which is many times of that of the original spinning machine under the same spinning speed. The equipment can reduce the equipment investment cost and simultaneously reduce the civil engineering investment cost by adopting the equipment on a production line with the same productivity.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic perspective view of a dry-jet wet-spinning apparatus according to an embodiment of the present invention;
fig. 2 is a longitudinal sectional view of a dry-jet wet-spinning apparatus according to an embodiment of the present invention, in which a cluster godet is a single rod;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic perspective view of a cooling air duct used in a dry-jet wet-spinning apparatus according to an embodiment of the present invention;
fig. 5 is a longitudinal sectional view of a dry-jet wet-spinning apparatus according to an embodiment of the present invention, in which two cluster godets are provided;
fig. 6 is a longitudinal sectional view of a dry jet wet spinning apparatus according to an embodiment of the present invention, in which three bundled godets are provided;
description of reference numerals:
1-metering pump, 2-metering pump box, 3-melt pipeline, 4-spinneret assembly, 5-cooling air pipeline, 6-cooling air distribution blowing device, 7-coagulating bath, 8-coagulating bath liquid level, 9-wind shield, 10-first bundling godet rod, 11-steering rod, 12-second bundling godet rod, 13-third bundling godet rod and 14-fourth bundling godet rod.
Detailed Description
In view of this, the invention provides a dry-jet wet spinning method spinning device, which is applied to spinning, the spinning capacity is twice of the spinning capacity of the original spinning device, and the investment cost and the occupied area are both reduced under the production line condition with the same capacity, so that the dry-jet wet spinning method spinning device is more suitable for practical use.
The inventors have made diligent efforts to find that the disadvantages and advantages of the long ribbon board spinning apparatus relative to the annular board spinning apparatus mainly include:
first, disadvantages of the long ribbon spinning apparatus with respect to the annular plate spinning apparatus mainly include,
first, the slot plate spinning apparatus has about half the number of orifices per unit area of the apparatus as compared to the annular plate spinning apparatus. The number of holes determines the throughput at the same spin speed. Therefore, the occupied area of the unit productivity of the long strip plate spinning equipment is larger than that of the annular plate spinning equipment. This results in a cost disadvantage in terms of the number of equipment and civil engineering investment.
Second, the side-blowing pattern of the ribbon spinning apparatus causes the air field with which the spinning streamlets are exposed to be uneven at the ends and middle of the tow band. The annular spinning equipment adopts annular air blowing, the periphery is completely symmetrical from inside to outside, and the air field is uniform. Therefore, the uniformity of the filament quality of the annular plate spinning equipment is relatively better.
However, the long ribbon spinning apparatus has many advantages that the annular plate spinning apparatus does not have, including:
firstly, from the viewpoint of the operation performance of the equipment, the long-strip plate spinneret assembly is arranged in a spinning box body with tight heat preservation, the temperature of the spinneret assembly can be well controlled, the viscosity of the spinning solution and the assembly pressure are further controlled, and the spinning speed is favorably improved.
Secondly, from the operation angle, the operation of the long slat spinning equipment is more convenient than the operation of the annular slat spinning equipment in spinning head, bundling, assembly replacement and other operations.
Thirdly, from the equipment processing angle, the processing difficulty of each component of the spinning component, the blowing component and the like of the strip plate spinning equipment is small, and the cost is relatively low. And the annular plate spinning equipment has high requirements on the processing precision of each component and high processing difficulty, so that the equipment manufacturing cost is higher.
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the spinning device by dry-jet wet-spinning method, its specific implementation, structure, features and effects will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, with the specific understanding that: both a and B may be included, a may be present alone, or B may be present alone, and any of the three cases can be provided.
Referring to the attached drawings 1-6, the dry-jet wet spinning equipment provided by the invention comprises a melt pipeline 3, a plurality of spinning assemblies 4, a cooling air pipeline 5, a coagulating bath 7 and a bundling wire guide rod. The melt pipeline 3 comprises a first main pipeline and a plurality of first branch pipelines, and the first main pipeline is respectively communicated with the first branch pipelines; the first branch pipelines correspond to the spinning assemblies 4 one by one, and are communicated with the corresponding spinning assemblies 4, so that spinning melt forms a plurality of groups of spinning streams after passing through the plurality of spinning assemblies 4; the cooling air pipeline 5 is used for blowing air to a plurality of groups of spinning trickle flows through a multi-directional air outlet; the cluster godet rod is arranged in the coagulating bath 7, so that the cluster godet rod can be used for completing cluster godet after multiple groups of spinning fine flows pass through the cluster godet rod. In this embodiment, the spinneret assembly 4 includes two spinneret plates, and the first branch line includes two branch lines, in this case, the long-strip plate spinning device, the annular plate spinning device, and the dry-jet wet-spinning device provided in the embodiment of the present invention are as follows:
| contrast parameter | Long slat spinning equipment | Annular plate spinning equipment | The equipment provided by the embodiment of the invention |
| Number of single holes/ | 33870 | 70000 | 67740 |
| Floor area/m of single pure equipment 2 | 1.8143 | 2.8296 | 2.1913 |
| Single station containing operation floor area/m 2 | 4.1706 | 5.8296 | 4.5475 |
| m 2 Ten thousand holes (pure equipment) | 0.5357 | 0.4042 | 0.3235 |
| m 2 Ten thousand holes (with operation space) | 1.2314 | 0.8328 | 0.6713 |
| 1.5 ten thousand tons/year production line spinning equipment floor area/m 2 | 800 | 560 | 436 |
Wherein the specifications of the spinneret packs 4 are the same; the first branch pipelines have the same specification. In this embodiment, the calibers, the lengths and the number of the elbows of the two first branch pipelines are all the same, and under the condition, the spinning trickle flowing out of each spinning assembly 4 can be ensured to have strong consistency, so that the quality of the finished yarn obtained after spinning is uniform and stable.
The dry-jet wet spinning equipment further comprises a metering pump 1 and a metering pump box body 2. The spinning melt passes through the metering pump 1 and then enters the melt line 3. In this case, the metered spinning melt is more in line with the production requirements.
Wherein, the cooling air pipeline 5 comprises a second main pipeline and a plurality of second branch pipelines. The second main pipeline is communicated with the second branch pipelines respectively. In this embodiment, the second branch pipeline is two, and the pipe diameter of second kind branch pipe, elbow quantity, pipeline length isogeometric construction are identical completely, under this kind of condition, can guarantee more strictly that distribution blast apparatus horizontal direction bloies the wind field even. The dry-jet wet-spinning equipment also comprises a cooling air distribution blowing device 6. The cooling air distribution blowing device 6 comprises a cavity, and an air outlet is formed in the cavity; the two second branch pipelines are respectively communicated with the cavity, and the two second branch pipelines are uniformly arranged on the cavity. In this embodiment, the connecting positions of the two branch pipes and the cavity are respectively located at 1/4 of the positions from the two axial ends of the cavity, and in this case, the wind blown out through the cavity can be made more uniform.
Wherein, the spinning equipment of the dry-jet wet spinning method also comprises two wind shields 9. The two wind shields 9 are respectively arranged below the two axial ends of the cavity, the extending length of the wind shields 9 in the horizontal direction exceeds the farthest end of the spinning fluid, and the bottommost end of the wind shields 9 is positioned below the liquid level of the coagulation bath 7. Under the condition, in the spinning process, after the cooling air meets the spinning trickle, as a large resistance is applied, part of the air bypasses the horizontal direction vertical to the blowing direction and meets the wind shield 9 at the horizontal direction, so that the transverse escape of the cooling air is prevented, and a positive pressure area is formed in a square space surrounded by two rows of tows and two wind shields, so that the wind field is ensured to be relatively uniformly applied to the tows, and the quality of finished yarns obtained through the spinning process is more favorable.
The dry-jet wet-spinning method spinning equipment further comprises a heat-preservation jacket, the heat-preservation jacket is arranged on the periphery of the melt pipeline 3 and/or the spinning assemblies 4, the dry-jet wet-spinning method spinning equipment further comprises a heat-preservation jacket, and the heat-preservation jacket is arranged on the periphery of the metering pump box body 2. A medium cavity is arranged in the heat preservation jacket, and heat preservation media are filled in the medium cavity. In this embodiment, the heat preservation medium is water, and temperature control is realized by controlling the water temperature. In this embodiment, in order to adjust the spinning speed, the spinneret assembly 4 is separately provided with a hot water heat-preserving jacket, and the temperature is independently controlled, so that the spinneret assembly is suitable for high-speed spinning of high-viscosity melt.
Wherein, the spinning equipment of the dry-jet wet spinning method also comprises a turning bar 11. The turning bar 11 is arranged at the edge of the outlet of the coagulating bath 7, and the spinning process is finished after the spinning trickle of the bundled guide wires passes through the turning bar 11.
The collecting godet rod comprises a first collecting godet rod 10, and a plurality of groups of spinning streams complete collecting godet through the first collecting godet rod 10; the collecting godet rod comprises a second plurality of collecting godet rods, and each group of spinning streamlets in the multiple groups of spinning streamlets pass through at least one collecting godet rod to complete collecting godet. As shown in fig. 2, the number of the bundled godets 10 is 1, and the number of the spinning streamlets is two; as shown in fig. 5, the collecting godet includes two, which are a second collecting godet 12 and a third collecting godet 13, wherein the first spinning stream collects the guide yarns via the second collecting godet 12, and the second spinning stream collects the guide yarns via the third collecting godet 13; as shown in fig. 6, the collecting godet includes three, which are a second collecting godet 12, a third collecting godet 13, and a fourth collecting godet 14, wherein the first spinning stream collects the guide yarn via the second collecting godet 12, and the second spinning stream collects the guide yarn via the fourth collecting godet 14 and the third collecting godet 13 in sequence. The number of the bundling godets is set according to the tolerance of the filament bundles to wrap angles of the bundling godets.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (11)
1. A spinning device by a dry-jet wet spinning method is characterized by comprising a melt pipeline (3), a plurality of spinning assemblies (4), a cooling air pipeline (5), a coagulating bath (7) and a beam-collecting filament guide rod,
the melt pipeline (3) comprises a first main pipeline and a plurality of first branch pipelines, and the first main pipeline is communicated with the first branch pipelines respectively;
the first branch pipelines correspond to the spinning assemblies (4) one by one, and are communicated with the corresponding spinning assemblies (4), so that spinning melt forms a plurality of groups of spinning trickle after passing through the spinning assemblies (4);
the cooling air pipeline (5) is used for blowing air to the multiple groups of spinning trickle flows through a multi-directional air outlet;
the cluster godet rod is arranged in the coagulating bath (7) so that the cluster godet rod can be used for completing cluster godet after the multiple groups of spinning trickles pass through the cluster godet rod;
the cooling air pipeline (5) comprises a second main pipeline and a plurality of second branch pipelines, and the second main pipeline is communicated with the second branch pipelines respectively;
also comprises a cooling air distribution blowing device (6),
the cooling air distribution blowing device (6) comprises a cavity, and the cavity is provided with the multidirectional air outlet;
the plurality of second branch pipelines are respectively communicated with the cavity;
also comprises two wind shields (9),
the two wind shields (9) are respectively arranged below the two axial ends of the cavity,
the extending length of the wind shield (9) in the horizontal direction exceeds the farthest end of the spinning trickle, and the bottommost end of the wind shield (9) is positioned below the coagulation bath liquid level of the coagulation bath (7).
2. Spinning apparatus according to the dry-jet wet-spinning method of claim 1, characterised in that the plurality of spinning packs (4) are of the same format; the first branch pipelines are same in specification.
3. A dry jet wet spinning apparatus according to claim 1, further comprising a metering pump (1) and a metering pump housing (2),
the spinning melt enters the melt pipeline (3) after passing through the metering pump (1) and the metering pump box body (2).
4. The dry-jet wet-spinning apparatus of claim 1, wherein said plurality of branch lines of the second type are arranged uniformly on said chamber.
5. The spinning apparatus according to the dry-jet wet-spinning method of claim 1, further comprising a thermal jacket disposed around the melt line (3) and/or the plurality of spinning packs (4).
6. The dry-jet wet-spinning device according to claim 3, characterized by further comprising a heat-insulating jacket disposed at the periphery of the metering pump housing (2).
7. The dry-jet wet-spinning device as claimed in claim 5 or 6, wherein a medium cavity is arranged in the heat-insulating jacket, and the medium cavity is filled with a heat-insulating medium.
8. The dry-jet wet-spinning apparatus according to claim 7, wherein said heat-insulating medium is water, and temperature control is achieved by controlling water temperature.
9. The dry-jet wet-spinning device according to claim 1, characterized in that it further comprises a turning bar (11), said turning bar (11) being arranged at the outlet edge of the coagulation bath (7),
and the spinning trickle which finishes the cluster guide wire passes through the turning rod (11) to finish the spinning process.
10. The dry jet wet spinning apparatus according to claim 1,
the cluster godet rod comprises a first cluster godet rod (10), and the multiple groups of spinning streams are all led through the first cluster godet rod (10) to complete cluster godet.
11. The dry-jet wet-spinning apparatus according to claim 1,
the collecting godet rods comprise a second plurality of collecting godet rods,
and each group of spinning streamlets in the multiple groups of spinning streamlets pass through at least one bunching godet rod to complete bunching godets.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210092875.3A CN114277452B (en) | 2022-01-26 | 2022-01-26 | Spinning equipment by dry-jet wet spinning method |
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| CN202210092875.3A CN114277452B (en) | 2022-01-26 | 2022-01-26 | Spinning equipment by dry-jet wet spinning method |
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| CN114277452B true CN114277452B (en) | 2023-01-06 |
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| JP2007119973A (en) * | 2005-10-31 | 2007-05-17 | Teijin Techno Products Ltd | Dry-wet spinning apparatus and dry-wet spinning method |
| CN104928771A (en) * | 2015-06-26 | 2015-09-23 | 北京三联虹普新合纤技术服务股份有限公司 | Production process of 24 cake nylon 6 fully-drawn fibers |
| CN105350091A (en) * | 2015-11-25 | 2016-02-24 | 山东大学 | Dry-jet wet-spinning jetting device and making method thereof |
| JP2017141524A (en) * | 2016-02-10 | 2017-08-17 | 帝人株式会社 | Manufacturing method of synthetic fiber yarn |
| CN211005732U (en) * | 2019-09-10 | 2020-07-14 | 杭州中丽化纤有限公司 | A cross-air blowing slow cooling device for colored POY long filament of superfine denier |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10019660B4 (en) * | 2000-04-20 | 2004-04-29 | Zimmer Ag | Process for spinning a spinning solution and spinning head |
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- 2022-01-26 CN CN202210092875.3A patent/CN114277452B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1501990A (en) * | 2001-03-14 | 2004-06-02 | ��֯�������о�Э��ͼ�ָ��о�Ժ | Method and device for the production of cellulose fibres and cellulose filament yarns |
| JP2007119973A (en) * | 2005-10-31 | 2007-05-17 | Teijin Techno Products Ltd | Dry-wet spinning apparatus and dry-wet spinning method |
| CN104928771A (en) * | 2015-06-26 | 2015-09-23 | 北京三联虹普新合纤技术服务股份有限公司 | Production process of 24 cake nylon 6 fully-drawn fibers |
| CN105350091A (en) * | 2015-11-25 | 2016-02-24 | 山东大学 | Dry-jet wet-spinning jetting device and making method thereof |
| JP2017141524A (en) * | 2016-02-10 | 2017-08-17 | 帝人株式会社 | Manufacturing method of synthetic fiber yarn |
| CN211005732U (en) * | 2019-09-10 | 2020-07-14 | 杭州中丽化纤有限公司 | A cross-air blowing slow cooling device for colored POY long filament of superfine denier |
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