CN202730345U - Coagulating tank for dry-jet wet spinning - Google Patents
Coagulating tank for dry-jet wet spinning Download PDFInfo
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- CN202730345U CN202730345U CN 201120577206 CN201120577206U CN202730345U CN 202730345 U CN202730345 U CN 202730345U CN 201120577206 CN201120577206 CN 201120577206 CN 201120577206 U CN201120577206 U CN 201120577206U CN 202730345 U CN202730345 U CN 202730345U
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- coagulating tank
- coagulating
- overflow
- head piece
- charging aperture
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Abstract
The utility model relates to a coagulating tank for dry-jet wet spinning. The top ends of the side walls at the silk inlet side and the silk outlet side of the coagulating tank are respectively provided with overflow weirs. The overflow weirs are provided with upper overflow mouths. The side walls at the silk inlet side and the silk outlet side are respectively provided with lower overflow mouths. The lower overflow mouths are connected with overflow guide pipes. The coagulating tank provided by the utility model is capable of conveniently and rapidly adjusting the height of the liquid level of coagulating liquid so that the coagulating tank is adaptive to a relatively large range of spinning speeds, thereby saving the equipment space and reducing the cost.
Description
Technical field
The utility model relates to the spining technology field, is specifically related to a kind of dry-jet wet-spinning coagulating tank.
Background technology
Dry-jet wet-spinning extensively is used to make the carbon fibre precursor of high-strength and high-modulus in recent years, therefore receives publicity gradually.Dry-jet wet-spinning is a kind of spinning process, specifically use measuring pump that spinning solution is sprayed from spinnerets, behind one section gas blanket (normally air layer), enter and solidify fibroblast in the coagulating tank, the thickness of above-mentioned gas layer (being that the spray silk identity distance of spinnerets is from the distance of coagulating tank liquid level) generally is 2～50mm.Spinning solution enters coagulating tank and solidifies through after the gas blanket.Usually, the stability of the temperature of coagulating bath liquid level and coagulating bath, concentration has directly affected the performance of solidifying strand and the quality of final products.For example, in the situation of high speed spinning, the gait of march of the tow that passes through from coagulating tank increases, and is accompanied by advancing of tow and the also thereupon increase of flow velocity of the solidification liquid (namely following stream) that flows.Because this follows the increase of stream flow velocity, the liquid level of solidification liquid can produce fluctuation, even whirlpool.Disorder or fracture of wire that the change of this solidification liquid liquid level can cause the monofilament in the tow to be arranged.Change in the significant situation at the solidification liquid liquid level, the spray silk face of spinning head local or all contact with solidification liquid causes spinning head to flood, and then can not carry out spinning.Therefore, except spinning technique was most important, the structure of coagulating tank also was the key factor that determines the strand performance.
At present, coagulating bath mainly contains static bath and flows down and bathes two kinds.As its name suggests, static bath be exactly solidification liquid be static, mobile even the liquid stream in the groove has, speed also is very little.Usually, in static bath, strand vertically enters coagulating tank and leaves from the coagulating tank opposite side after changing direction by guiding in the groove, and solidification liquid overflows through downflow weir.With respect to static bath, flowing down bath is to allow solidification liquid flow, and makes its direct of travel with the strand that just enters coagulating tank identical.Solidification liquid has the flow direction identical with the strand of advancing, and can reduce the resistance between the two, alleviates the friction between the strand, increases spinning speed.
Static bath and flow down to bathe and cut both ways.But owing to flow down the bath severe operational environment, strand stops up in the stream pipe easily, and therefore, being applied at present industrialized is static bath.The utility model coagulating bath is static bath, and coagulating bath hereinafter also is all static bath.
The time of staying of strand in coagulating tank is relevant with the size of spinning speed and coagulating tank.When the time of staying one timing, spinning speed is faster, and the coagulating tank that needs is just larger.Therefore, people tend to make larger coagulating tank to adapt to different spinning speeds.But, in such event, the situation of little spinning speed will appear adapting to large coagulating tank.This not only needs a large amount of solidification liquids, but also has consumed the unnecessary energy, has greatly increased cost.
Summary of the invention
In order to overcome defects, the purpose of this utility model provides strong, the applicable spinning speed on a large scale of a kind of liquid level modulability, dry-jet wet-spinning coagulating tank that cost is low.
Dry-jet wet-spinning of the present utility model with coagulating tank advance a side and wire vent side sidewall top is respectively arranged with downflow weir, be provided with the overflow head piece on the downflow weir; Advance a side and wire vent side sidewall is respectively arranged with the underflow head piece, the underflow head piece links to each other with overflow conduit.
Wherein, described wire vent side sidewall and coagulating tank bottom surface angle are 25～35 °.
In addition, described coagulating tank bottom is provided with charging aperture, and the charging aperture top is provided with baffle plate; Distance between described baffle plate and the trench bottom is 20～30cm.
In addition, described overflow head piece, overflow conduit, charging aperture link to each other with the solidification liquid storage tank, and solidification liquid circulates between coagulating tank and solidification liquid storage tank; Wherein, the liquid outlet of overflow conduit is provided with valve, by liquid level in the valve control coagulating tank.
In addition, described overflow head piece or charging aperture place are provided with screen pack; Described screen pack is 50～800 orders.
In addition, described coagulating tank outside is provided with heat-insulation layer.
In addition, described heat-insulation layer is rock wool or polyurethane.
In addition, be provided with form on the sidewall of described coagulating tank, the form on the opposite side sidewall is asymmetric.
In addition, described coagulating tank top is provided with cover plate.
On the sidewall of coagulating tank of the present utility model form can be set, observe spinning situation in the coagulating tank by form.The number of described form and set-up mode be without particular determination, preferred before and after the form of sidewall asymmetric, asymmetric form can printing opacity can enlarge again the range of observation of coagulating tank.
Coagulating tank of the present utility model bottom is provided with the solidification liquid charging aperture, is used for the charging of solidification liquid.The top of charging aperture is provided with baffle plate, the distance 20～30cm between described baffle plate and the trench bottom.Connected mode between baffle plate and coagulating tank is not limit, and namely can be that single pillar links to each other, and can be that several shore supports link to each other yet.The difficult point of dry-jet wet-spinning is how to reduce the fluctuation of solidification liquid liquid level, keeps the stable of solidification liquid liquid level, and the volume of coagulating tank is larger, and the stability of solidification liquid liquid level is poorer.The utility model is provided with a baffle plate directly over charging aperture, can effectively reduce on the one hand the solidification liquid of inflow coagulating tank to the interference of solidification liquid liquid level, also can reduce on the other hand the liquid stream at charging aperture place to solidifying the impact of strand.
In addition, the utility model is provided with screen pack at described overflow head piece or charging aperture place, and the order number of screen pack is 50～800 orders.If the order number of screen pack is less than 50 orders, screen pack does not have the effect of filtration; If the order number of screen pack is greater than 800 orders, then overfall is stopped up by impurity such as fracture of wires easily, and the discharge opeing of overfall is affected.
Can have cover plate on the coagulating tank, the material of cover plate and form are without particular determination.
Described coagulating tank outside can be provided with heat-insulation layer.The preferred rock silk floss of the material of heat-insulation layer or polyurethane.In addition, the set-up mode of heat-insulation layer for example can reach by the welding chuck purpose of insulation temperature control without particular determination.
In addition, the overflow head piece of the utility model coagulating tank, overflow conduit, charging aperture etc. link to each other with the solidification liquid storage tank by pipeline, solidification liquid circulates between coagulating tank and solidification liquid storage tank, with the concentration of assurance solidification liquid and stablizing of temperature, and saves the energy; Wherein, the liquid outlet of overflow conduit is provided with valve, can control liquid level in the coagulating tank by control valve.
Coagulating tank of the present utility model can be regulated the solidification liquid liquid level quickly and easily, makes coagulating tank can adapt in a big way spinning speed, thereby saves the device space, reduces cost.
Description of drawings
Fig. 1 is the top view of the utility model coagulating tank.
Fig. 2 is the side view of the utility model coagulating tank.
Fig. 3 is the opposite side view of the utility model coagulating tank.
Among the figure: 1, coagulating tank; 2, downflow weir; 3, overflow conduit; 4, overflow head piece; 5, underflow head piece; 6, charging aperture; 7, baffle plate; 8, form; 9, valve; α, coagulating tank sidewall; β, coagulating tank sidewall.
The specific embodiment
Following examples are used for explanation the utility model, but do not limit scope of the present utility model.
Be illustrated in figure 1 as the top view of the utility model coagulating tank, it comprises: downflow weir 2, overflow conduit 3, overflow head piece 4, underflow head piece 5, charging aperture 6, baffle plate 7, form 8, valve 9, coagulating tank sidewall α, β.The described coagulating tank of present embodiment advance the silk and wire vent side sidewall top be equipped with downflow weir, advance on a side and the wire vent side sidewall to be respectively arranged with underflow head piece 5, underflow head piece 5 links to each other with overflow conduit 3.Overflow conduit 3 liquid outlet places are provided with valve 9.In the present embodiment coagulating tank, be provided with altogether 6 forms 8, it is comprised of oval-shaped visor, shown in the side view of Fig. 2, Fig. 3 coagulating tank, the form on α sidewall and the β sidewall is mutually asymmetric, when observing coagulating tank inside, entering of light can be guaranteed, range of observation can be enlarged again.As shown in Figure 1, be provided with a circular baffle plate 7 at charging aperture 6 places of coagulating tank 1, baffle plate 7 joins by pillar and bottom surface.Overflow head piece 4 and charging aperture 6 at above-mentioned coagulating tank arrange screen pack, and the order number of screen pack is 300 orders (not marking among the figure).
During spinning, if spinning speed is less, the spinning amount is little, and what need solidifies liquid measure when less, can select overflow conduit 3 so, and namely Open valve 9.At this moment, solidification liquid just overflows from overflow conduit 3, and the liquid level of coagulating bath is at overflow conduit 3 places.The solidification liquid that overflows from overflow conduit 3 flows to the solidification liquid storage tank by back of pipeline, after the regulation and control of over-richness and temperature, exert pressure with the solidification liquid delivery pump and to enter the coagulating tank 1 from charging aperture 6, realized the circulation of solidification liquid between coagulating bath storage tank and coagulating tank, to guarantee the stable of coagulating bath concentration and temperature.In like manner, when the spinning amount larger, what need solidifies liquid measure when more, then valve-off 9, solidification liquid just overflows from the overflow head piece 4 of downflow weir 2, and the liquid level of coagulating bath is at downflow weir 2 places, and the solidification liquid that overflows from overflow head piece 4 is by flowing to the solidification liquid storage tank to the back of pipeline that is connected with overflow head piece 4, after the regulation and control of over-richness and temperature, exert pressure by the solidification liquid delivery pump and to return charging aperture 6 places and enter in the coagulating tank 1.In addition, vertically enter the coagulating tank 1 after by the air section of 3mm from the spinning solution thread of spinnerets ejection, double diffusion occurs between spinning solution and the solidification liquid, be frozen into gradually strand, then strand is drawn out from coagulating tank 1 after being arranged on the guiding change direction in the coagulating tank 1, enters next operation.
Claims (9)
1. a dry-jet wet-spinning coagulating tank is characterized in that, described coagulating tank advance a side and wire vent side sidewall top is respectively arranged with downflow weir, be provided with the overflow head piece on the downflow weir; Advance a side and wire vent side sidewall is respectively arranged with the underflow head piece, the underflow head piece links to each other with overflow conduit.
2. coagulating tank according to claim 1 is characterized in that, described wire vent side sidewall and coagulating tank bottom surface angle are 25～35 °.
3. coagulating tank according to claim 1 is characterized in that, described coagulating tank bottom is provided with charging aperture, and the charging aperture top is provided with baffle plate; Distance between described baffle plate and the trench bottom is 20～30cm.
4. coagulating tank according to claim 1 is characterized in that, described overflow head piece, overflow conduit, charging aperture link to each other with the solidification liquid storage tank, and solidification liquid circulates between coagulating tank and solidification liquid storage tank; Wherein, the liquid outlet of overflow conduit is provided with valve, by liquid level in the valve control coagulating tank.
5. coagulating tank according to claim 1 is characterized in that, described overflow head piece or charging aperture place are provided with screen pack; Described screen pack is 50～800 orders.
6. coagulating tank according to claim 1 is characterized in that, described coagulating tank outside is provided with heat-insulation layer.
7. coagulating tank according to claim 6 is characterized in that, described heat-insulation layer is rock wool or polyurethane.
8. coagulating tank according to claim 1 is characterized in that, is provided with form on the sidewall of described coagulating tank, and the form on the opposite side sidewall is asymmetric.
9. described coagulating tank according to claim 1 is characterized in that described coagulating tank top is provided with cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120577206 CN202730345U (en) | 2011-12-30 | 2011-12-30 | Coagulating tank for dry-jet wet spinning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120577206 CN202730345U (en) | 2011-12-30 | 2011-12-30 | Coagulating tank for dry-jet wet spinning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202730345U true CN202730345U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120577206 Expired - Lifetime CN202730345U (en) | 2011-12-30 | 2011-12-30 | Coagulating tank for dry-jet wet spinning |
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| Country | Link |
|---|---|
| CN (1) | CN202730345U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105420855A (en) * | 2015-12-07 | 2016-03-23 | 国网智能电网研究院 | Spinning solution continuous solidification device and control method thereof |
| CN110093669A (en) * | 2019-05-28 | 2019-08-06 | 新乡化纤股份有限公司 | A kind of viscose glue continuously spins acid bath groove band pressure spinning process |
| CN112877799A (en) * | 2020-12-31 | 2021-06-01 | 荣成碳纤维科技有限公司 | Method and system for producing carbon fiber dry-jet wet-spun precursor |
-
2011
- 2011-12-30 CN CN 201120577206 patent/CN202730345U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105420855A (en) * | 2015-12-07 | 2016-03-23 | 国网智能电网研究院 | Spinning solution continuous solidification device and control method thereof |
| CN105420855B (en) * | 2015-12-07 | 2023-11-03 | 国网智能电网研究院 | Continuous coagulation device for spinning solution and control method thereof |
| CN110093669A (en) * | 2019-05-28 | 2019-08-06 | 新乡化纤股份有限公司 | A kind of viscose glue continuously spins acid bath groove band pressure spinning process |
| CN112877799A (en) * | 2020-12-31 | 2021-06-01 | 荣成碳纤维科技有限公司 | Method and system for producing carbon fiber dry-jet wet-spun precursor |
| CN112877799B (en) * | 2020-12-31 | 2022-03-11 | 荣成碳纤维科技有限公司 | Method and system for producing carbon fiber dry-jet wet-spun precursor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |