CN219824452U - Multi-layer structure circular blow box - Google Patents
Multi-layer structure circular blow box Download PDFInfo
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- CN219824452U CN219824452U CN202320937483.2U CN202320937483U CN219824452U CN 219824452 U CN219824452 U CN 219824452U CN 202320937483 U CN202320937483 U CN 202320937483U CN 219824452 U CN219824452 U CN 219824452U
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- cooling device
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- diffusion
- filament bundle
- cold air
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- 238000001816 cooling Methods 0.000 claims abstract description 64
- 238000007664 blowing Methods 0.000 claims abstract description 61
- 238000009792 diffusion process Methods 0.000 claims abstract description 47
- 239000000155 melt Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 16
- 239000003595 mist Substances 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 description 5
- 238000009987 spinning Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000002074 melt spinning Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The utility model provides a multi-layer structure annular blowing box which comprises an annular blowing cooling device, an annular diffusion cooling device and an annular suction cooling device which are sequentially arranged from top to bottom, wherein the annular blowing cooling device is positioned at the periphery below a spinneret plate and is used for cooling melt sprayed out of the spinneret plate to change the melt into tows, the annular diffusion cooling device emits cold air to the tows, the cold air enters the middle part of the tows in the descending process of the tows, and the cold air is extracted outside the tows when passing through the annular blowing cooling device. According to the utility model, through the three-layer structure, the heat in the middle of the filament bundle is fully dissipated, and the filament bundle is cooled by the cold air diffused by the ring, so that the cold air is immersed into the middle of the filament bundle along with the descending direction of the filament bundle, meanwhile, the operation of the cold air can be accelerated by ring suction, the cold air after heat absorption is sucked away, the heat of the filament bundle from the outer side to the middle can be fully dissipated, and the uniformity of the cooling forming quality of the filament bundle is controlled.
Description
Technical Field
The utility model relates to a circular blowing cooling device, in particular to a circular blowing box with a multilayer structure.
Background
The spinning process flow is as follows: slice conveying, slice drying, melt extrusion, filtration distribution, melt spinning, cooling forming, tow oiling and winding forming, wherein during melt spinning, melt is sprayed out from capillary holes of a spinneret plate, cooled, stretched and finally solidified into filaments, and the spinning process can be divided into three parts from the spinneret plate surface to a winding part, namely a flowing deformation area, an orientation crystallization area and a shaping deformation area. Wherein the cooling forming process is divided into the following steps according to the blowing direction of the cooling medium (air): the transverse blowing and the vertical blowing are divided into side blowing and ring blowing, and the vertical blowing is divided into forward flow and reverse flow, and the transverse blowing is commonly used at present.
As shown in fig. 1, side blowing: the melt trickle is blown by cooling air from one side of the filament bundle, the structure is simple, the operation is convenient, the cooling intensity is very high, but the cooling intensity is uneven, the cooling intensity near the air outlet is far higher than that at the air outlet, the temperature in the same section is uneven (namely, the windward side and the leeward side have larger difference), and the filament spinning machine is suitable for cooling filaments with small hole number and adopting a rectangular spinneret plate for spinning.
And (3) circular blowing: not only has the advantage of uniformly receiving wind for each bundle of wires, but also can reduce energy consumption, and effectively solves the problem of wind energy loss caused by large blowing area when side blowing. Currently, typical external ring blowers in the international market mainly include products manufactured by companies such as TMT in japan, samsung in korea, pamphlet in germany, and the like. The outer ring blowing device of the Japanese TMT company is a spun fiber ring blowing device developed earlier, and wind obliquely upwards enters horizontally and directly, so that the wind can be directly blown onto each wind direction rectifying cylinder. The front and rear wind is unevenly distributed, and the stable distributed wind pressure and stable wind speed can be achieved only by means of high wind pressure, high damping and no air leakage of the blowing head box. The high damping element of the device is a rectifying cylinder, which adopts a special paper microporous honeycomb cylinder, and ensures that the air is radial centripetal air blowing and does not directly blow the spinneret plate surface when the air is blown to the filament bundles by high wind pressure. The external ring blower of TMT corporation of japan has a slow cooler and an air filter drawer device, and has problems in that the lifting is not smooth enough and is easily deflected. This is due to the lower lifting slide and the insufficient strength of the entire lifting device. The wind direction rectifying cylinder is made of paper, and has a good wind rectifying effect, but has a short service life, and the wind direction rectifying cylinder needs to be replaced after being cleaned for three times, so that the operation cost is high.
The central ring blowing apparatus of the korean samsung company blows wind from the center to the outside. The center is a candle-shaped air blowing fine cylinder, a micropore air homogenizing device consisting of a bronze-based powder metallurgy liner and a stainless steel pore plate is adopted, a hole for positioning an air blowing core cylinder and an area which cannot be perforated due to the fact that the air blowing core cylinder moves forwards and backwards are reserved in the center of a spinneret plate, and the number of hole arrangement is limited. The central ring of the Korean Sanxing company is provided with two groups of cylinders which move transversely and vertically, so that the blowing core barrel moves away when the shovel plate and the lifting head are lifted. The slow cooler of the device adopts a movable pumping plate, and the pumping plate has large gap, is easy to leak air and is easy to store slurry. The disadvantage of the central outward blowing is that the structure has to be strictly balanced in wind inlet and outlet, and has strict operation requirements, otherwise, the air pressure in the air chamber is unbalanced, and the wire disturbance is caused. The candle-shaped blowing cylinder has high cost, high damping to achieve uniformity of wind and high energy consumption.
The outer ring blowing equipment of the German BARGAG company is characterized in that wind enters a first rectifying chamber from an air duct through a first layer of porous plate, then upwards passes through a horizontal porous plate to enter a second rectifying chamber, then passes through a third rectifying chamber formed by a circular porous plate and a multi-layer net, and finally is atomized through the multi-layer net. The semi-closed outer ring blowing device can form a relatively constant air-dynamic balanced air flow environment, so that the obtained fiber has regular cross section forming and small difference between the inner layer and the outer layer. The lifting guide is arranged on two sides, so that the lifting stability of the annular blowing box is facilitated. The external ring air blowing equipment of the German BARGAG company can be repeatedly cleaned and used, has long service life, does not have an air inlet filter device and does not have a slow cooler.
These several devices each have advantages and disadvantages, specifically: the outer ring blowing wind direction rectifying cylinder of the Japanese TMT company is manufactured finely, and the wind receiving uniformity of each position and each bundle of wires between the positions can be ensured. But its wind direction rectifying cylinder has large wind resistance and relatively large energy consumption. Central ring blowing equipment of Sanxingzhu in Korea, central candle-shaped blowing thin cylinder, high cost, high requirement of blowing on surrounding environment and slightly high energy consumption. The manufacturing quality of the metal mesh type rectifying cylinder is the key for controlling the consistency of the cooling forming quality of the filament bundle. The metal net type rectifying cylinder has small wind resistance and low energy consumption and can be repeatedly used.
The circular blowing is not only the outer circular blowing but also the central circular blowing, and the filament bundles can dissipate heat uniformly before forming, so that the winding part at the lower end can be smoothly carried out, the current circular blowing is uniform blowing, the filament bundles can keep larger distance in a flowing deformation area and an oriented crystallization area, and the filament bundles are easily accumulated in the middle under the influence of wind in a shaping deformation area, so that the further dissipation of heat is not facilitated.
Disclosure of Invention
The utility model provides a multi-layer structure circular blowing box, which solves the heat dissipation problem of circular blowing and the problem that tows are easy to gather in the middle to cause heat concentration under the influence of circular blowing, and the technical scheme is as follows:
the utility model provides a multilayer structure ring blow box, includes ring blowing cooling device, ring diffusion cooling device and the ring that from the top down set gradually inhale cooling device, ring blowing cooling device is located the periphery of spinneret below for cool off spinneret spun fuse-element, make the fuse-element become the silk bundle, ring diffusion cooling device gives off the air conditioning to the silk bundle, and the air conditioning gets into the middle part of silk bundle at the in-process that the silk bundle descends, and draws out the silk bundle outside when passing through ring blowing cooling device.
The annular blowing cooling device comprises a first rectifying chamber and a second rectifying chamber above the first rectifying chamber, a horizontal porous plate is arranged at the joint of the first rectifying chamber and the second rectifying chamber, and the aperture of the horizontal porous plate is 2-3 mm.
The first rectifying chamber is provided with a first rectifying plate, the second rectifying chamber is provided with a third rectifying plate, and the apertures of the first rectifying plate and the third rectifying plate are 1.5-2 mm.
The front end of the outlet of the second rectifying chamber is provided with three layers of metal nets with staggered meshes, and the apertures of the metal nets are 0.6-0.7 mm, so that discharged air flow becomes mist.
The annular diffusion cooling device is provided with a cold air pipe and a diffusion cylinder which are sequentially connected, a diffusion plate and a multi-layer baffle are arranged in the diffusion cylinder, an air outlet plate is arranged at the outlet, air outlet holes are uniformly distributed in the air outlet plate, and the length of each air outlet hole is 1 cm-2 cm.
The baffle is provided with the three-layer, is first baffle, second baffle and third baffle respectively.
The outermost baffle does not exceed the range of the diffusion plate, and the distance between the diffusion plate and the outermost baffle and the outlet of the diffusion cylinder is 5 cm-10 cm.
The annular suction cooling device comprises an air suction pipe which is obliquely arranged, and the orientation angle of the air suction pipe is the same as the inclination angle of the adjacent tows.
The inside of aspiration channel is provided with the filter, the aperture of filter is 1.5mm ~ 2mm.
The distance between the inlet of the annular suction cooling device and the filament bundle is 4 cm-8 cm.
The multi-layer structure circular blow box can realize that heat in the middle of a silk bundle is fully radiated through a three-layer structure of circular blowing, circular diffusion and circular suction. After the melt is sprayed out of the capillary holes of the spinneret plate, the melt is subjected to initial annular blowing heat dissipation, and then is subjected to stretching and descending, cold air is diffused through the annular, so that the cold air is immersed into the middle of the filament bundle along with the descending direction of the filament bundle, meanwhile, the annular suction can accelerate the running of the cold air, and the cold air after heat absorption is sucked away, so that the heat of the filament bundle from the outer side to the middle can be fully dissipated, and the uniformity of the cooling forming quality of the filament bundle is controlled.
Drawings
FIG. 1 is a schematic view of side and circular blowing;
FIG. 2 is a schematic view of the structure of the multi-layer structure ring blow box;
FIG. 3 is a schematic view of the structure of the annular blowing cooling apparatus;
FIG. 4 is a schematic view of the ring diffusion cooling apparatus;
FIG. 5 is a schematic view of the structure of the air outlet plate;
FIG. 6 is an inlet schematic diagram of the suction cooling device;
1-a spinneret plate; 2-tows; 3-ring blowing cooling device; 4-ring diffusion cooling means; 5-ring suction cooling device; 6-a first rectifying chamber; 7-a second rectification chamber; 8-a first rectifying plate; 9-an air inlet pipe; 10-a horizontal perforated plate; 11-a third rectifying plate; 12-a first metal mesh; 13-a second metal mesh; 14-a third metal mesh; 15-a cooling air outlet; 16-a cold air pipe; 17-a diffusion cylinder; 18-a diffusion plate; 19-a first baffle; 20-a second baffle; 21-a third baffle; 22-an air outlet plate; 23-air outlet holes; 24-filter plate.
Detailed Description
As shown in fig. 2, the annular blow box with a multi-layer structure is sequentially provided with an annular blow cooling device 3, an annular diffusion cooling device 4 and an annular suction cooling device 5 from top to bottom, wherein the annular blow cooling device 3 is positioned at the periphery of the lower part of the spinneret plate 1 and is used for cooling melt sprayed out of the spinneret plate 1 to change the melt into a filament bundle 2, the annular diffusion cooling device 4 distributes cold air to the filament bundle 2, the cold air enters the middle part of the filament bundle 2 in the descending process of the filament bundle 2, and the cold air is extracted outside the filament bundle 2 when passing through the annular blow cooling device 3.
As shown in fig. 3, the annular blowing cooling device 3 comprises a first rectifying chamber 6 and a second rectifying chamber 7 which are sequentially connected, the second rectifying chamber 7 is positioned above the first rectifying chamber 6, a horizontal porous plate 10 which is horizontally arranged is arranged at the joint of the first rectifying chamber 6 and the second rectifying chamber, the other side of the first rectifying chamber 6 is connected to an air inlet pipe 9, and a first rectifying plate 8 is arranged between the first rectifying chamber 6 and the air inlet pipe 9. The second rectifying chamber 7 is provided with a third rectifying plate 11, a first metal net 12, a second metal net 13 and a third metal net 14 in sequence from the horizontal porous plate 10 to the cooling air outlet 15 at the outer side, and is used for horizontally spraying cold air obtained by the air inlet pipe 9 in a mist form.
The aperture of the first rectifying plate 8 is 1.5 mm-2 mm, the aperture of the horizontal porous plate 10 is 2 mm-3 mm, cold air enters from the air inlet pipe 9, passes through the first rectifying plate 8 and then is subjected to air flow adjustment, then upwards passes through the horizontal porous plate 10 and enters the second rectifying chamber 7, at this time, the cold air flow becomes gentle, under the pushing of the follow-up air flow, the cold air passes through the third rectifying plate 11 and is subjected to air flow direction carding, then passes through three layers of metal nets and then is changed into mist, the meshes of the first metal net 12, the second metal net 13 and the third metal net 14 are arranged in a staggered mode, the aperture is 0.6 mm-0.7 mm, and the mist air flow reaches the spinneret plate 1 to realize the cooling effect.
As shown in fig. 4, the ring diffusion cooling device 4 is provided with a cold air pipe 16 and a diffusion barrel 17 which are sequentially connected, a diffusion plate 18 and a plurality of layers of baffles are arranged in the diffusion barrel 17, one end of the diffusion plate 18 is connected to an outlet of the cold air pipe 16, the other end of the diffusion plate is connected to a position 5 cm-10 cm away from an outlet of the diffusion barrel 17, the upper end and the lower end of the baffles are fixedly connected with the diffusion plate 18 through connecting rods, and the outermost layer of baffles are not beyond the range of the diffusion plate 18 and are also 5 cm-10 cm away from the outlet of the diffusion barrel 17.
The baffles are provided with three layers, a first baffle 19, a second baffle 20 and a third baffle 21, respectively. The first baffle 19 is provided with a slice and is positioned in the middle of the cold air pipe 16; the second baffle 20 is provided with two pieces and is positioned between the first baffle 19 and the diffusion plate 18; the third baffle 21 is provided with three pieces, the middle piece being located at the rear side of the first baffle 19 and having a length longer than the first baffle 19, and the remaining two pieces being located between the second baffle 20 and the diffusion plate 18.
The cold air duct 16 delivers cold air to the direction of the filament bundle, the cold air is smoothly output at a high speed by the action of the multi-layer baffle plate and the diffusion plate 18, and when the cold air is smoothly output from the diffusion cylinder 17, the cold air contacts the filament bundle 2, the descending speed of the filament bundle 2 at the moment is increased, and the cold air is diffused to the middle part of the filament bundle 2 under the driving of the filament bundle 2 and exchanges heat with the heat in the middle part of the filament bundle 2.
Further, the wind speed of the annular blowing cooling device 3 is 0.2 m/s-0.4 m/s, the wind speed of the annular diffusion cooling device 4 is 0.05 m/s-0.1 m/s, and the height of the diffusion cylinder 17 is 2.5-4 times of the height of the second rectifying chamber 7. In order to make the wind flow of the diffusion cylinder 17 smoothly output, an air outlet plate 22 is arranged at the outlet of the diffusion cylinder 17, as shown in fig. 5, air outlet holes 23 are uniformly distributed on the air outlet plate 22, and the length of the air outlet holes 23 is 1 cm-2 cm.
As shown in fig. 6, the annular suction cooling device 5 comprises an inclined air suction pipe, the direction angle of the air suction pipe is the same as the inclination angle of the filament bundles, the error is not more than 10%, a filter plate 24 is arranged in the air suction pipe, and the aperture of the filter plate 24 is 1.5 mm-2 mm. The inlet of the annular suction cooling device 5 is 4 cm-8 cm away from the filament bundle, and the cold air after heat exchange in the middle of the filament bundle and the cold air of the annular diffusion cooling device 4 are sucked through the action of the annular suction cooling device 5, so that the filament bundle has a tendency of outwards bending under the action of the suction force, and the cold air for heat exchange in the middle of the filament bundle 2 flows out.
The multi-layer structure circular blow box can realize that heat in the middle of a silk bundle is fully radiated through a three-layer structure of circular blowing, circular diffusion and circular suction. After the melt is sprayed out of the capillary holes of the spinneret plate, the melt is subjected to initial annular blowing heat dissipation, and then is subjected to stretching and descending, cold air is diffused through the annular, so that the cold air is immersed into the middle of the filament bundle along with the descending direction of the filament bundle, meanwhile, the annular suction can accelerate the running of the cold air, and the cold air after heat absorption is sucked away, so that the heat of the filament bundle from the outer side to the middle can be fully dissipated, and the uniformity of the cooling forming quality of the filament bundle is controlled.
Claims (10)
1. A multi-layer structure circular blow box, characterized in that: the device comprises a circular blowing cooling device, a circular diffusion cooling device and a circular suction cooling device which are sequentially arranged from top to bottom, wherein the circular blowing cooling device is positioned at the periphery of the lower part of a spinneret plate and is used for cooling melt sprayed out of the spinneret plate to enable the melt to become a filament bundle, the circular diffusion cooling device emits cold air to the filament bundle, the cold air enters the middle part of the filament bundle in the descending process of the filament bundle, and the outside of the filament bundle is extracted when passing through the circular blowing cooling device.
2. The multi-layer structural ring blow box according to claim 1, wherein: the annular blowing cooling device comprises a first rectifying chamber and a second rectifying chamber above the first rectifying chamber, a horizontal porous plate is arranged at the joint of the first rectifying chamber and the second rectifying chamber, and the aperture of the horizontal porous plate is 2-3 mm.
3. The multi-layer structural ring blow box according to claim 2, wherein: the first rectifying chamber is provided with a first rectifying plate, the second rectifying chamber is provided with a third rectifying plate, and the apertures of the first rectifying plate and the third rectifying plate are 1.5-2 mm.
4. The multi-layer structural ring blow box according to claim 2, wherein: the front end of the outlet of the second rectifying chamber is provided with three layers of metal nets with staggered meshes, and the apertures of the metal nets are 0.6-0.7 mm, so that discharged air flow becomes mist.
5. The multi-layer structural ring blow box according to claim 1, wherein: the annular diffusion cooling device is provided with a cold air pipe and a diffusion cylinder which are sequentially connected, a diffusion plate and a multi-layer baffle are arranged in the diffusion cylinder, an air outlet plate is arranged at the outlet, air outlet holes are uniformly distributed in the air outlet plate, and the length of each air outlet hole is 1 cm-2 cm.
6. The multi-layer structural ring blow box according to claim 5, wherein: the baffle is provided with the three-layer, is first baffle, second baffle and third baffle respectively.
7. The multi-layer structural ring blow box according to claim 6, wherein: the outermost baffle does not exceed the range of the diffusion plate, and the distance between the diffusion plate and the outermost baffle and the outlet of the diffusion cylinder is 5 cm-10 cm.
8. The multi-layer structural ring blow box according to claim 1, wherein: the annular suction cooling device comprises an air suction pipe which is obliquely arranged, and the orientation angle of the air suction pipe is the same as the inclination angle of the adjacent tows.
9. The multi-layer structural ring blow box according to claim 8, wherein: the inside of aspiration channel is provided with the filter, the aperture of filter is 1.5mm ~ 2mm.
10. The multi-layer structural ring blow box according to claim 8, wherein: the distance between the inlet of the annular suction cooling device and the filament bundle is 4 cm-8 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320937483.2U CN219824452U (en) | 2023-04-24 | 2023-04-24 | Multi-layer structure circular blow box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320937483.2U CN219824452U (en) | 2023-04-24 | 2023-04-24 | Multi-layer structure circular blow box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219824452U true CN219824452U (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320937483.2U Active CN219824452U (en) | 2023-04-24 | 2023-04-24 | Multi-layer structure circular blow box |
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| Country | Link |
|---|---|
| CN (1) | CN219824452U (en) |
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2023
- 2023-04-24 CN CN202320937483.2U patent/CN219824452U/en active Active
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