CN102051696A - Dry heat draw box - Google Patents
Dry heat draw box Download PDFInfo
- Publication number
- CN102051696A CN102051696A CN2009102135159A CN200910213515A CN102051696A CN 102051696 A CN102051696 A CN 102051696A CN 2009102135159 A CN2009102135159 A CN 2009102135159A CN 200910213515 A CN200910213515 A CN 200910213515A CN 102051696 A CN102051696 A CN 102051696A
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- dry heat
- electric heater
- centrifugal blower
- case according
- heat drafting
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Abstract
The invention discloses a dry heat draw box which comprises a box body, a box cover, an electric heater, a centrifugal fan, a yarn inlet, a yarn outlet, a circulating air outlet and a circulating air inlet, wherein the yarn inlet and the yarn outlet are respectively arranged on the side wall of the box body, the electric heater is installed at an air inlet side of an air blade of the centrifugal fan, and the air outlet of the centrifugal fan and the electric heater are connected by a channel; in addition, the draw box is internally provided with a plurality of static pressure chambers and a plurality of pressure stabilizing chambers, the static pressure chambers are communicated with the circulating air outlet end, and all the pressure stabilizing chambers are communicated with the static pressure chambers through built-in adjustable air distribution adjustment valves. By using the structure of the dry heat draw box disclosed in the invention, temperature differences at all parts inside the box body can be reduced so that temperatures at all parts inside the box body are relatively uniform.
Description
Technical field
The present invention relates to the production equipment of a kind of high-tenacity polyethylene fibre, high-strength and high-modulus vinylon, carbon fiber and aramid fiber, the draw box of particularly a kind of high-tenacity polyethylene fibre, carbon fiber and aramid fiber.
Background technology
Because superhigh molecular weight polyethylene fibers has high strength, high-modulus, low-density characteristics, so itself and carbon fiber, aramid fiber and claim the world today three big tec fibers.Because its molecular weight is high, main chain is combined, the degree of orientation, degree of crystallinity height, therefore its intensity be current all fibres, with its intensity height (be equivalent under the equivalent weight condition high-quality steel wire 8 times), modulus height (1300g/d), in the advanced lightweight composite, demonstrate great advantage, be widely used in the national defence quartermaster equipment exhibition area, as bullet-proof vest, the helmet and lightweight armor, and aspects such as civilian sail, hawser, parachute and filter material.High-tenacity polyethylene fibre adopts gel spinning-super times heat stretching process production more at present, and the fiber through spinning moulding is referred to as as-spun fibre.Because its structure is still unstable, supermolecule structure order is lower, so its Physical Mechanical can satisfy the weaving processing request, and must be by a series of backs manufacturing procedure.Wherein most important is exactly drafting process.Fiber after drawing-off processing obtains corresponding rock-steady structure Hou, just can meet the requirement of weaving processing, and good stability in use is arranged, and unfold the macromolecular chain of fiber or aggregated structure unit in drawing process.And along fiber axis to oriented, in orientation, be accompanied by the variation of phase, and the variation of other architectural features.High-tenacity polyethylene fibre have a good characteristic, the reason of high-tenacity, high-modulus is exactly the molecular structure of its linear long-chain.
2.5 meters of the length of general draw box---6 meters, adopt the casing self-circulation mode, one of hot blast advances one and goes out, and there is thermostat inside.Two-way, unidirectional hot blast circulation form is arranged.Temperature in the general hot case is inconsistent, inhomogeneous, but has an obvious thermograde to fall.And this gradient is fallen, and constant temperature heating device is also very difficult, and balance---it is heat make-up, forms air port hot blast temperature height more, and the low phenomenon of air inlet (circulating fan) temperature because of cold air enters in the hot case, can be taken away a part of heat.So at the higher air outlet place of temperature, the stretching, extension maximum of fiber, plastic deformation is the most obvious.Though the hot case and the external world have exchange heat unavoidably, temperature is fallen should be less.Though take various compensation methodes, in the actual production, be difficult to the temperature unanimity of accomplishing that hot case is interior.In drafting process, heating-up temperature is one of key point.Cross when low at draft temperature, impact brittle failure or tiny crackle can take place in fiber, produce the lousiness phenomenon.If draft temperature is too high, fiber produces excessive refinement, does not follow the increase of the degree of orientation, does not also have crystallization to produce.Not only when producing high-tenacity polyethylene fibre, there are the problems referred to above, produce carbon fiber and aramid fiber and have similar problem too.
There is bigger temperature difference in present draw box ubiquity internal temperature, and is inhomogeneous to the tow heating, reduced drawing effect, influenced the quality of high-tenacity polyethylene fibre, carbon fiber and aramid fiber product.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of dry heat drafting case, it can realize tow is carried out the equilibrium heating with simple relatively structure, tow is heated evenly, reaches higher temperature-controlled precision, thereby improve the quality of high-tenacity polyethylene fibre, carbon fiber and aramid fiber product.
For solving the problems of the technologies described above, the present invention has adopted following technical scheme: the dry heat drafting case, comprise casing and case lid, electric heater, centrifugal blower, advance the silk mouth, filament mouth, the circulated air outlet constitutes with the circulated air import, advances the silk mouth and is located at respectively on the sidewall of casing with filament mouth, described electric heater is installed in the inlet side of centrifugal blower fan blade, is connected with passage between the air inlet of centrifugal blower fan blade and the electric heater.
As a preferred embodiment of the present invention, at least one plenum chamber and at least one pressure stabilizing chamber are arranged in the described dry heat drafting case, the circulated air outlet (is connected with plenum chamber, plenum chamber distributes control valve to be communicated with pressure stabilizing chamber by built-in adjustable air quantity, described built-in adjustable air quantity distributes control valve to regulate, to change the size of interface channel between plenum chamber and the pressure stabilizing chamber.
As a preferred embodiment of the present invention, it is by the constituting of slip set bolt and baffle plate, by adjusting the position of slip set bolt with the change baffle plate that described built-in adjustable air quantity distributes control valve.
As a preferred embodiment of the present invention, described fan blade air inlet upper end is provided with hot blast and mixes cover.The recyclegas of box house heats through heater after sucking by the circulated air import, the temperature of the hot blast after the process heating is actual to be uneven, must deliver to hot blast by the hot blast import and mix and to suck fan blade again after cover tentatively mixes, the high speed rotation by fan blade is mixed hot blast fully to deliver to and recycles the air port.
As a preferred embodiment of the present invention, the fan blade of described centrifugal blower is installed in the centre position of casing.
As a preferred embodiment of the present invention, be provided with the volute deflector in the passage between described centrifugal blower fan blade and the electric heater.This volute deflector is generally plate crooked, that have certain radian.
As a preferred embodiment of the present invention, be provided with the volute deflector in the passage between described centrifugal blower and the circulated air outlet.
As a preferred embodiment of the present invention, described pressure stabilizing chamber upper end is the heat transfer wind deflector of perforate.
As a preferred embodiment of the present invention, described electric heater is contained in the flange form incubation chamber, inserts in the casing air channel again and fixes with casing.
Taked said structure, can realize temperature-controlled precision (± 1 ℃), made that temperature is more even in the case everywhere so that the box house temperature difference everywhere reduces.After inner loop gas heats through electric heater, enter plenum chamber, distribute control valve to transfer to pressure stabilizing chamber by built-in adjustable air quantity then, the heat transfer wind deflector of the perforate by pressure stabilizing chamber top transfers to the service aisle of tow again, in this passage, carry out heat exchange with tow, be inhaled into electric heater by the circulated air import then and heat, so circulation.
Above-mentioned various structure, the gas that can impel electric heater to come out can better evenly distribute, thereby makes that can better carry out heat between hot gas and the tow conducts, and then has improved heating, the drawing-off effect of tow, has improved the quality of product.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is the longitudinal section of dry heat drafting case of the present invention.
Fig. 2 is a partial sectional view of the present invention.
Fig. 3 distributes the partial sectional view of control valve for the built-in adjustable air quantity of the present invention.
Fig. 4 is the vertical view of baffle plate described in the present invention.
The specific embodiment
Fig. 1 shows a kind of dry heat drafting case in the profilograph mode.The dry heat drafting case is imported and exported adjustable plate, case lid headstock gear, temperature sensor etc. by casing, electric heater, centrifugal blower, inner chamber, case lid sealing device, tow and is partly formed.This dry heat drafting case specifically comprises: built-in adjustable air quantity distributes control valve 1, temperature sensor 2, hot blast to mix cover 3, thermometer 4, heat of mixing wind inlet 5, fan blade 6, motor 7, terminal box 8, volute deflector 9, silk screen layer 10, pressure stabilizing chamber 11, plenum chamber 12, electric heater 13, circulated air outlet 14, circulated air import 15, heat transfer wind deflector 16, dividing plate 17, baffle plate 18, chute 19, slip set bolt 20.Wherein casing is made by shaped steel and sheet metal welding, and interior plate is a stainless steel material, fills heat insulation, the insulation of high-quality aluminium silicate wool between the interior outer panel.Adopt the hot air circulation mode, centrifugal blower can be located at the middle part of casing, an end air intake, and one brings out wind.Hot gas after electric heater 13 heating circulates through following loop: electric heater 13-heat of mixing wind inlet 5-hot blast mixes cover 3-centrifugal blower-built-in adjustable air quantity of volute deflector 9-electric heater 13-circulated air outlet 14-plenum chamber 12-and distributes control valve 1-pressure stabilizing chamber 11-heat transfer wind deflector 16-operating room tow-circulated air import 15-electric heater 13, reciprocation cycle, can make temperature even (± 1 ℃) in the casing like this, be in the case everywhere temperature keep same temperature substantially, especially advance silk and mouthful can be consistent with the temperature inside the box with the temperature of filament mouth.In this process, require air quantity, blast control to suit, be not as the criterion tow there is obvious disturbance.
Heated air in the tow service aisle comes from heat transfer wind deflector 16, heated air is set up circulation air inlet 15 suctions at one end then, the gas that sucks enters in the electric heater 13 that is installed in the centrifugal blower inlet side and heats, gas after the heating mixes cover 3 by hot blast and enters centrifugal blower, be delivered to circulated air outlet 14 by the centrifugal blower air outlet again, enter plenum chamber 12 then, distribute control valve 1 to enter pressure stabilizing chamber 11 by built-in adjustable air quantity again, transfer to the tow service aisle by heat transfer wind deflector 16 then, so cycling.Electric heater 13 is installed concentratedly on the flange form incubation chamber, inserts in the casing air channel again and fixes with casing, can make things convenient for the maintaining and the replacing of electrical heating elements like this.
The fan blade upper end is provided with hot blast and mixes cover 3.Be provided with volute deflector 9 in the passage between centrifugal blower and the electric heater 13.This volute deflector 9 is generally plate crooked, that have certain radian.Wherein built-in adjustable air quantity distributes control valve 1 to be made up of slip set bolt 20 and baffle plate 18, slip set bolt 20 is removable in chute 19, by adjusting slip set bolt 20 to change baffle plate 18 positions, thereby regulate the size of air port passage between plenum chamber 12 and the pressure stabilizing chamber 11, hot gas is from regulating the discharge that evenly distributes of air channel, air outlet then.In the passage between centrifugal blower and the circulated air outlet volute deflector 9 is set.This volute deflector 9 is generally plate crooked, that have certain radian.Pressure stabilizing chamber 11 upper ends are the heat transfer wind deflector 16 of perforate.
Case lid is movable hinge arrangement, on uncap, side adopts high temperature resistant sponge silastic sealing strip sealing before and after the case lid.Chamber interior wall rear side hinge place is provided with the stainless steel deep bead, and the front side is provided with high temperature resistant sponge silicane rubber plate deep bead, and left and right sides tow turnover silk place is provided with the slit and adjusts plate.
Claims (9)
1. dry heat drafting case, comprise casing and case lid, electric heater (13), centrifugal blower advances the silk mouth, filament mouth, circulated air outlet (14) constitutes with circulated air import (15), advance silk and mouthful be located at respectively on the sidewall of casing with filament mouth, it is characterized in that: described electric heater (13) is installed in the inlet side of centrifugal blower fan blade (6), is connected with passage between the air inlet of centrifugal blower fan blade (6) and the electric heater (13).
2. dry heat drafting case according to claim 1, it is characterized in that: at least one plenum chamber (12) and at least one pressure stabilizing chamber (11) are arranged in the described dry heat drafting case, circulated air outlet (14) is connected with plenum chamber (12), plenum chamber (12) distributes control valve (1) to be communicated with pressure stabilizing chamber (11) by built-in adjustable air quantity, and described built-in adjustable air quantity distributes control valve (1) to regulate.
3. dry heat drafting case according to claim 2, it is characterized in that: it is by the formation of slip set bolt (20) and baffle plate (18), by adjusting slip set bolt (20) to change the position of baffle plate (18) that described built-in adjustable air quantity distributes control valve (1).
4. dry heat drafting case according to claim 1 is characterized in that: described fan blade (6) air inlet upper end is provided with hot blast and mixes cover (3).
5. dry heat drafting case according to claim 1 is characterized in that: the fan blade of described centrifugal blower (6) is installed in the centre position of casing.
6. dry heat drafting case according to claim 1 is characterized in that: be provided with volute deflector (9) in the passage between described centrifugal blower fan blade (6) and the electric heater (13).
7. dry heat drafting case according to claim 1 is characterized in that: be provided with volute deflector (9) in the passage between described centrifugal blower and the circulated air outlet (14).
8. dry heat drafting case according to claim 1 is characterized in that: described pressure stabilizing chamber (11) upper end is the heat transfer wind deflector (16) of perforate.
9. dry heat drafting case according to claim 1 is characterized in that: described electric heater (13) is contained in the flange form incubation chamber, inserts in the casing air channel again and fixes with casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102135159A CN102051696A (en) | 2009-11-05 | 2009-11-05 | Dry heat draw box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102135159A CN102051696A (en) | 2009-11-05 | 2009-11-05 | Dry heat draw box |
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|---|---|
| CN102051696A true CN102051696A (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102135159A Pending CN102051696A (en) | 2009-11-05 | 2009-11-05 | Dry heat draw box |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776591A (en) * | 2012-08-11 | 2012-11-14 | 张家港欣欣高纤股份有限公司 | Wind blocking board in heat preservation box |
| CN105544039A (en) * | 2016-02-26 | 2016-05-04 | 吴江市东联丝绸有限公司 | Polyester silk thermal stretch device for textile use |
| CN105970397A (en) * | 2016-07-19 | 2016-09-28 | 苏州耐德新材料科技有限公司 | Polytetrafluoroethylene monofilament drafting and heating device |
| CN106048754A (en) * | 2016-07-09 | 2016-10-26 | 江苏金斗重工有限公司 | Hot-air drawing box with uniform temperature and height |
| CN106319659A (en) * | 2016-11-22 | 2017-01-11 | 江苏新豪威特种化纤有限公司 | Steam heating device for chemical fiber filaments |
| CN106637512A (en) * | 2016-10-31 | 2017-05-10 | 哈尔滨天顺化工科技开发有限公司 | Heat drafting device used during carbon fiber precursor production |
| CN107475595A (en) * | 2017-07-10 | 2017-12-15 | 江苏鑫龙化纤机械有限公司 | A kind of polyethylene fibre dry heat draw box electric heating tube alloy material |
| CN108468092A (en) * | 2018-03-29 | 2018-08-31 | 南通新帝克单丝科技股份有限公司 | The annealing device of large-diameter polymer filament stretch and sizing |
| CN109652888A (en) * | 2017-10-11 | 2019-04-19 | 江苏神鹤科技发展有限公司 | A kind of intelligent constant-temperature hot air apparatus |
| CN110004547A (en) * | 2018-02-08 | 2019-07-12 | 丽水创智果科技有限公司 | A method of forming composite filament |
| CN112427214A (en) * | 2020-11-17 | 2021-03-02 | 奇瑞商用车（安徽）有限公司 | Filter cotton pressing plate structure of paint spraying dynamic pressure chamber for automobile coating |
| CN115233321A (en) * | 2021-04-23 | 2022-10-25 | 江苏金斗重工有限公司 | Lyocell fiber spinning machine melt distribution beam |
-
2009
- 2009-11-05 CN CN2009102135159A patent/CN102051696A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776591A (en) * | 2012-08-11 | 2012-11-14 | 张家港欣欣高纤股份有限公司 | Wind blocking board in heat preservation box |
| CN102776591B (en) * | 2012-08-11 | 2015-02-04 | 张家港欣欣高纤股份有限公司 | Wind blocking board in heat preservation box |
| CN105544039A (en) * | 2016-02-26 | 2016-05-04 | 吴江市东联丝绸有限公司 | Polyester silk thermal stretch device for textile use |
| CN106048754B (en) * | 2016-07-09 | 2018-07-17 | 江苏金斗重工有限公司 | A kind of dry heat draw box of temperature high uniformity |
| CN106048754A (en) * | 2016-07-09 | 2016-10-26 | 江苏金斗重工有限公司 | Hot-air drawing box with uniform temperature and height |
| CN105970397A (en) * | 2016-07-19 | 2016-09-28 | 苏州耐德新材料科技有限公司 | Polytetrafluoroethylene monofilament drafting and heating device |
| CN106637512A (en) * | 2016-10-31 | 2017-05-10 | 哈尔滨天顺化工科技开发有限公司 | Heat drafting device used during carbon fiber precursor production |
| CN106637512B (en) * | 2016-10-31 | 2019-07-23 | 哈尔滨天顺化工科技开发有限公司 | A kind of hot gas spring device in carbon fibre precursor production |
| CN106319659A (en) * | 2016-11-22 | 2017-01-11 | 江苏新豪威特种化纤有限公司 | Steam heating device for chemical fiber filaments |
| CN107475595A (en) * | 2017-07-10 | 2017-12-15 | 江苏鑫龙化纤机械有限公司 | A kind of polyethylene fibre dry heat draw box electric heating tube alloy material |
| CN109652888A (en) * | 2017-10-11 | 2019-04-19 | 江苏神鹤科技发展有限公司 | A kind of intelligent constant-temperature hot air apparatus |
| CN110004547A (en) * | 2018-02-08 | 2019-07-12 | 丽水创智果科技有限公司 | A method of forming composite filament |
| CN110004547B (en) * | 2018-02-08 | 2021-07-09 | 嘉兴市佳峰贝纺织股份有限公司 | Method for forming composite filament |
| CN108468092A (en) * | 2018-03-29 | 2018-08-31 | 南通新帝克单丝科技股份有限公司 | The annealing device of large-diameter polymer filament stretch and sizing |
| CN112427214A (en) * | 2020-11-17 | 2021-03-02 | 奇瑞商用车（安徽）有限公司 | Filter cotton pressing plate structure of paint spraying dynamic pressure chamber for automobile coating |
| CN115233321A (en) * | 2021-04-23 | 2022-10-25 | 江苏金斗重工有限公司 | Lyocell fiber spinning machine melt distribution beam |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110511 |