CN202830251U - Drafting hot box device for ultra high molecular weight polyethylene fiber - Google Patents
Drafting hot box device for ultra high molecular weight polyethylene fiber Download PDFInfo
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- CN202830251U CN202830251U CN 201220293861 CN201220293861U CN202830251U CN 202830251 U CN202830251 U CN 202830251U CN 201220293861 CN201220293861 CN 201220293861 CN 201220293861 U CN201220293861 U CN 201220293861U CN 202830251 U CN202830251 U CN 202830251U
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Abstract
The utility model belongs to the technical field of textile material equipment, and discloses a drafting hot box device for an ultra high molecular weight polyethylene fiber. The drafting hot box device comprises a box body which is composed of an upper box body and a lower box body. A drafting room and a circular air duct are arranged inside the box body, and a porous core material structure is covered on the inner surface of the drafting room. A silk flock inlet and an air inlet are arranged at one end of the drifting room, and a silk flock outlet and an air outlet are arranged at the other end of the drifting room. A draught fan, a radiating fin heating pipe and an efficient supply-air outlet are arranged inside the air duct. 3-6 box body side doors which can be opened are arranged on one side of the box body. Heat insulation material layers are respectively arranged inside the upper box body, the lower box body and the box body side doors. By the adoption of the structure, heat efficiency can be improved, drafting of silk flocks can be ensured the condition of uniform temperature and without disturbance, uniformity of fiber number is improved, and production of broken filament and broken ends is efficiently reduced so that quality and rate of finished products of finished fiber are improved.
Description
Technical field
The utility model relates to the drafting heat box that a kind of spinning industry is used, and especially is applied in the production of superhigh molecular weight polyethylene fibers.
Background technology
Superhigh molecular weight polyethylene fibers is the fiber that a class has height-oriented extended-chain configuration, is one of important new material that supports world's new high-tech industry, with carbon fiber, aramid fiber and be called three large tec fibers.Because it has that intensity is high, modulus is high, quality is light, fast light strong, the characteristics such as abrasion resistance is high, energy absorption and damping capacity are superior, in the advanced lightweight composite, demonstrate great advantage, main application is to replace iron and steel, alloy, in field of aerospace, military field irreplaceable effect is arranged, relate to the sensitive material of national security.Can be widely used in the fields such as military equipment, space flight navigation, security protection, extraordinary building, fishery, shipbuilding industry, have very good market prospects.
Mostly the superhigh molecular weight polyethylene fibers suitability for industrialized production is to adopt gel spinning-super drawing technology at present.Gel spinning makes the large molecule in the solution be in low entanglement state, make the large molecule in the dynamic analysis of spinning basically keep this low entanglement state by quenching behind the spinning moulding, but because of its structure still unstable, on supramolecular structure, large molecular order is lower, must make its post forming through following process, improve the physics-mechanical performance of fiber.And only have through the high power hot-stretch, the large molecule of polyethylene could be unfolded and stretch along draw direction, and macromolecular orientation and crystallization degree improve, and give fiber very excellent mechanical property thereby macromolecular chain is changed to extended-chain configuration by original folded chain.The master operation of high power hot-stretch is exactly drafting process.In the drafting process, the platelet that the aggregation that presents large platelet is decomposed into slightly orientation is piled up, and platelet is conciliate along the draw direction rotation and twined subsequently, finally causes the microfibrillar structure of extended chain crystallization to form.Stretching in the drafting process can make the strand chain segment orientation, and the high temperature that drafting heat box provides can make strand be orientated, and finally improves degree of crystallinity and the degree of orientation of fiber, improves the performance of fiber.
In the prior art, superhigh molecular weight polyethylene fibers be stretched as hot-stretch, as-spun fibre is among air surrounds, it mainly is to rely on the heat transmission between air dielectric and the heater to realize in drafting heat box that fiber is heated.At present drafting heat box mainly adopts hot air circulating system to provide heat energy for fiber, and the drafting heat box chamber is the metal material of common heat transfer, because circulated air and the drawing-off chamber rear wind direction of having an effect can change, causes the wind field disorder.Circulated air through the drawing-off chamber in the process of fiber heating because circulated air can to precursor and the drawing-off chamber be had an effect and transferring heat, can make precursor vibration-generating and the temperature unbalanced phenomena occurs and produce the quality wild effect of lousiness, broken end and silk in chamber.Heating arrangement is common case structure electric heater, and gas easily forms the gas stagnant area at the place, dead angle of casing, has a strong impact on the efficiency of heating surface, the waste thermal energy consumption.Can cause because expanding with heat and contract with cold pipe deforming even leakage in the air channel, circulated air is not because can impacting moulding, the outward appearance of equipment and tow through purified treatment entrained impurity when tow is heated simultaneously.
Summary of the invention
Problem to be solved in the utility model provides a kind of drafting heat box device for superhigh molecular weight polyethylene fibers traction typing usefulness, its thermal efficiency is high, uniformity of temperature profile, circulated air is clean, little and the distributing equilibrium to the tow disturbance, can effectively prevent the pipe deforming even the leakage that cause owing to expanding with heat and contract with cold, guarantee fibre bundle drawing-off under the temperature of even constant cleaning, thereby improved the performance of finished fiber, yield rate and stability have reduced workman's labour intensity and have frequently opened thermal loss that hot case causes and inhomogeneous because processing the broken end of lousiness in the hot case.
Technical solution of the present utility model:
A kind of superhigh molecular weight polyethylene fibers drafting heat box device is characterized in that: it comprises the casing that is comprised of upper box and lower box, establishes drawing-off chamber and circulation air path that inner surface covers the porous material structure in the casing; One end of drawing-off chamber is tow entrance and air inlet, and the other end is tow outlet and air outlet; Be provided with blower fan, expansion joint, cylinder efficient heating device and efficient air distributor in the circulation air path; One side of casing be provided with the casing side door that can open several, establish insulation material layer in upper box and lower box and the casing side door.
Adopt novel cylinder efficient heating device in the above-mentioned circulation air path.
Above-mentioned porous material is the bi-dimensional cellular porous metal material, and its material is the metals such as bronze, nickel, alloy, stainless steel, titanium, aluminium; The combination cellular Kagome structure that its micro-structural can form for equilateral triangle honeycomb, square honeycomb, regular hexagon honeycomb, by regular hexagon honeycomb and equilateral triangle honeycomb etc., preferred regular hexagon honeycomb, Kagome honeycomb micro-structural.
Above-mentioned efficient air distributor adopt have voltage stabilizing, shunting, filtration integrated structure.
Employing can effectively prevent the pipe deforming that causes owing to expanding with heat and contract with cold even reveal expansion joint in the above-mentioned circulation air path.
Technological merit of the present utility model is:
1. the utility model adopts novel cylinder efficient heating device, adopt columnar new-type heater, there is not square dead angle, gas communication is smooth and easy, have quick heating, heating evenly, the advantage such as high, the long service life of perfect heat-dissipating, the thermal efficiency, the stability of circulated air heating is increased substantially.Add the thermal recovery integral heater, directly insert cylinder, two ends are fixed with flange.Easily installation and removal, easy maintenance and replacement.
2. the utility model drawing-off chamber inner surface covers the porous core, when circulated air passes through porous material, but uniform distribution air quantity, can make the part circulated air change laminar flow into by turbulent flow,, thus make circulated air distributed uniform through tow, thereby can not make the tow vibration-generating produce lousiness and broken end because wind direction is disorderly, the quality of impact silk,, reduce labor strength and frequently open thermal loss that hot case causes and inhomogeneous because processing lousiness broken end in the hot case.Simultaneously since porous material for a long time under the circulated air effect, temperature reaches assigned temperature and constant temperature, makes the drafting heat box temperature even, tow drawing-off under uniform and stable temperature can guarantee to produce high-quality fiber.
The utility model adopt have voltage stabilizing, efficient air distributor that one was regulated, was filtered in shunting, air quantity, simple in structure, and the effective entrained impurity of filtration cycle wind, the raising fiber quality.
4. the utility model has added an expansion joint in the air channel, can effectively prevent like this pipe deforming even the leakage that cause owing to expanding with heat and contract with cold.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment drafting heat box.
Among the figure, 1-upper box, 2-lower box, 3-porous material, 4-drawing-off chamber, 5-casing side door, 6-tow entrance, the outlet of 7-tow, 8-expansion joint, 9-air inlet, 10-air outlet, 11-circulation air path, 12-blower fan, 13-cylinder efficient heating device, 14-efficient air distributor.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described further.
Embodiment
The described superhigh molecular weight polyethylene fibers of the present embodiment drafting heat box device, as shown in Figure 1, its casing is comprised of upper box 1 and lower box 2, establishes drawing-off chamber 4 and circulation air path 11 in the casing; One end of drawing-off chamber 4 is tow entrance 6 and air inlet 9, and the other end is tow outlet 7 and air outlet 10; Be provided with blower fan 12, expansion joint 8, novel cylinder efficient heating device 13 and efficient air distributor 14 in the circulation air path 11; A side of casing be provided with the casing side door 5 that can open several, in upper box 1 and lower box 2 and casing side door 5, establish insulation material layer.
Above-mentioned drawing-off chamber 4 inner surfaces are comprised of porous metal material, this porous material 3 is bi-dimensional cellular shape porous material, its micro-structural can be equilateral triangle, square, regular hexagon, Kagome network (combination cellular that is comprised of regular hexagon honeycomb and equilateral triangle honeycomb) etc., preferred regular hexagon, Kagome micro-structural.Because porous material inside has a large amount of holes and makes porous metal material have the characteristic of many excellences, specific area is large, energy absorption good, the heat exchange heat-sinking capability is high, sound absorption property is good, permeability is excellent, high temperature resistant.Can be used for controlling the flow velocity of gas and flowing, can make turbulent flow change laminar flow into, be conducive to 3 D complex and flow, overcome the adverse effect in boundary layer.Drawing-off chamber 4 inner surfaces adopt porous material 3, can overcome circulated air and directly produce refraction with the effect of drawing-off chamber and make the indefinite problem of wind direction, make the circulated air of disorder become Laminar Flow; When circulated air enters the drawing-off chamber, the even action by porous material be distributed in whole fibre bundle surface, guarantee that tow do not shake in the drawing-off chamber; Simultaneously since porous material for a long time under the circulated air effect, temperature reaches assigned temperature and constant temperature, makes the drafting heat box temperature even, tow drawing-off under uniform and stable temperature can guarantee to produce high-quality fiber.
Above-mentioned novel cylinder efficient heating device 13 is positioned at circulation air path 11, between blower fan 12 and the efficient air distributor 14, through there not being the columnar new-type heater at square dead angle, gas communication is smooth and easy from blower fan 12 circulated air out, and the efficiency of heating surface is high, homogeneous heating.Add the thermal recovery integral heater, directly insert cylinder, two ends are fixed with flange.Easily installation and removal, easy maintenance and replacement.
Above-mentioned casing side door 5 is positioned at lower box 2 upper ends, and the side door number is about 3-6.Side door door-plate heat-barrier material is made, and replaceable high-temperature silica gel sealing ring is set.Manually connect a usefulness when tow was by drafting heat box and tow fracture when side door was convenient to drawing-off, because this side door is adjacent one by one, when opening, for opening one by one, has reduced and opened external thermal loss of moment.
Above-mentioned efficient air distributor 14 is positioned at circulation air path 11, circulated air import department, the built-in plenum chamber of this efficient air distributor, diffuser plate, volume damper, heat-insulation layer and high efficiency particulate air filter, this efficient air distributor 14 integrates voltage stabilizing, shunting, filtration insulation, and can select suitable air outlet according to Air Quantity Required.Circulated air through efficient air distributor steadily, evenly send and effectively filters impurity, prevented that impurity is on the infringement of equipment and on the impact of wire-beam forming and outward appearance.
Claims (3)
1. superhigh molecular weight polyethylene fibers drafting heat box device, it is characterized in that: it comprises the casing that is comprised of upper box and lower box, establishes drawing-off chamber and circulation air path that inner surface covers the porous material structure in the casing; One end of drawing-off chamber is tow entrance and air inlet, and the other end is tow outlet and air outlet; Be provided with blower fan, expansion joint, cylinder efficient heating device and efficient air distributor in the circulation air path; One side of casing is provided with the casing side door that can open, establishes insulation material layer in upper box and lower box and the casing side door.
2. drafting heat box device according to claim 1 is characterized in that the cylinder efficient heating device adopts integral heater, directly inserts cylinder, and two ends are fixed with flange.
3. drafting heat box device according to claim 1, it is characterized in that the porous material structure is bi-dimensional cellular porous metal material structure, its micro-structural is equilateral triangle honeycomb, square honeycomb, regular hexagon honeycomb or the combination cellular structure that is comprised of regular hexagon honeycomb and equilateral triangle honeycomb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293861 CN202830251U (en) | 2012-06-21 | 2012-06-21 | Drafting hot box device for ultra high molecular weight polyethylene fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220293861 CN202830251U (en) | 2012-06-21 | 2012-06-21 | Drafting hot box device for ultra high molecular weight polyethylene fiber |
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| Publication Number | Publication Date |
|---|---|
| CN202830251U true CN202830251U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220293861 Expired - Lifetime CN202830251U (en) | 2012-06-21 | 2012-06-21 | Drafting hot box device for ultra high molecular weight polyethylene fiber |
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| CN (1) | CN202830251U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484958A (en) * | 2013-09-22 | 2014-01-01 | 中国纺织科学研究院 | Hot box and heating system for drafting filaments |
| CN103510168A (en) * | 2012-06-21 | 2014-01-15 | 中国石油化工股份有限公司 | Drafting hot box device for ultra-high molecular weight polyethylene fibers |
-
2012
- 2012-06-21 CN CN 201220293861 patent/CN202830251U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510168A (en) * | 2012-06-21 | 2014-01-15 | 中国石油化工股份有限公司 | Drafting hot box device for ultra-high molecular weight polyethylene fibers |
| CN103484958A (en) * | 2013-09-22 | 2014-01-01 | 中国纺织科学研究院 | Hot box and heating system for drafting filaments |
| CN103484958B (en) * | 2013-09-22 | 2016-03-30 | 中国纺织科学研究院 | Drafted fibre hot case and drafted fibre heating system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
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| CX01 | Expiry of patent term |