CN104213221A - Polyethylene fiber drawing hot box - Google Patents
Polyethylene fiber drawing hot box Download PDFInfo
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- CN104213221A CN104213221A CN201310213726.9A CN201310213726A CN104213221A CN 104213221 A CN104213221 A CN 104213221A CN 201310213726 A CN201310213726 A CN 201310213726A CN 104213221 A CN104213221 A CN 104213221A
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Abstract
The invention discloses a polyethylene fiber drawing hot box. The polyethylene fiber drawing hot box comprises a box body, a channel with a silk inlet and an air inlet in one end and a silk outlet and an air outlet in the other end is arranged in the box body, an upper air flue with the two ends provided with an air inlet and an air outlet respectively and a lower air flue with the two ends provided with an air inlet and an air outlet respectively are formed above and below the channel respectively, the air inlet and the air outlet of the upper air flue and the air inlet and the air outlet of the lower air flue are communicated with the air inlet and the air outlet of the channel respectively, a draught fan, an electric heating box and a ventilation pipe are arranged in the upper air flue, a draught fan, an electric heating box and a ventilation pipe are arranged in the lower air flue, a mixer is arranged in the upper air flue, a mixer is arranged in the lower air flue, the mixers are located behind the electric heating boxes in the air flues respectively, and hot air heated by the electric heating boxes is mixed through the mixers and then enters the channel through the air inlet of the channel. According to the polyethylene fiber drawing hot box, the mixers are arranged behind the electric heating boxes in the air flues, the centers of the mixers and the centers of the ventilation pipes are not at the same height, and therefore, circulating air is well mixed, and the effect of uniform speed and uniform temperature is achieved.
Description
Technical field
The present invention relates to a kind of drafting heat box, be specifically related to a kind of vinyl fiber drafting heat box.
Background technology
At present, polyethylene fiber many employings gel spinning-super times heat stretching process.Fiber after preliminary elongational and orientation, is referred to as as-spun fibre, because its degree of orientation and degree of crystallinity are all lower, must process further and process, fiber just can be made to meet the requirement of textile process.In subsequent processing operations, most important is exactly stretch and HEAT SETTING.Stretch and HEAT SETTING is that fibrous molecular structure occurs to tend to the process of crystalline rearrangement, make fibre diameter diminish in stretching under external force, strand flexible in fiber is unfolded, and along the unidirectional distortion in direction of active force, rearrangement and orientation.Because the large molecule of fiber is along fiber axis orientation, add the intermolecular force of hydrogen bond, dipole moment and other types, the strand number that fiber bears external tension increases, intermolecular distance reduces, structure compact, thus the fracture strength of fiber is significantly improved, ductility declines.
Drafting heat box is a kind of device often used in spinning, and it coordinates the stretching realizing fiber again with drawing machine after being heated by tow.The mode of current drafting heat box many employings hot air circulation heats and constant temperature filament, is provided with the path of wire and provides the air channel of circulating air, be provided with circulating fan and electrical heating case in air channel in casing.But there is the uneven problem of mixing in the hot blast after heating, and then causes the hot blast temperature skewness entered in path; In addition, the specific heat load of both sides, path is comparatively large, causes the gradient distribution that medium temperature is high, both sides temperature is low.Due to the existence of thermograde, the stress-strain property of fiber also has very big difference, thus causes fibre number uneven, bulk strength declines, in drafting process, fracture of wire increases, and some fracture of wire also can enter air channel by path air outlet, affects the normal operation of equipment.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of polyethylene fiber drafting heat box.
Its technical solution is:
A kind of polyethylene fiber drafting heat box, comprise casing, in casing, be provided with one end there is the path into silk mouth and air inlet and the other end with filament mouth and air outlet, upper in path, below is provided with two ends and establishes the upper of air inlet and air outlet respectively, lower air duct, on, the air inlet of lower air duct is connected with air inlet with the air outlet in path respectively with air outlet, upper, blower fan is provided with in lower air duct, electrical heating case and ventilation shaft, on described, also blender is respectively arranged with in lower air duct, described blender is all positioned at the rear of the electrical heating case that its air channel, place is arranged, hot blast after the heating of electrical heating case enters in path through ventilation shaft by path air inlet again after blender mixing, the cross section of described blender is hexagon, and has two groups of corresponding sides parallel to each other, in the vertical direction, the center of described blender and the center of ventilation shaft be not at sustained height, air outlet place, described path is provided with filter screen, described path enter silk mouth and filament mouth place is provided with adjustable baffle plate.
Preferably, the short heating tube that long heating tube and length are less than long heating tube is provided with in described electrical heating case.
Preferably, the length of described short heating tube is between 100 ~ 500 millimeters.
Preferably, described casing arranged outside has safety hook.
Preferably, the number of described safety hook is set to 2.
Advantageous Effects of the present invention is:
1, the rear of the present invention's electrical heating case in air channel is provided with blender, and recirculating air flow wind speed when blender first reduces to increase afterwards; The center of in the vertical direction blender and the center of ventilation shaft be not at sustained height, and the center of in the vertical direction blender import in other words and the center of outlet be not at sustained height, and therefore circulated air obtains good mixing, plays the effect of average rate samming.
2, in heating cabinet of the present invention except being provided with long heating tube, both sides add one group of short heating tube respectively, are used for making up the temperature deviation of both sides, path, solve the problem that both sides, path specific heat load is larger.
3, the present invention has safety hook in casing arranged outside, ensure that safety during overhaul of the equipments.
4, the present invention is provided with filter screen at air outlet place, path, prevents fracture of wire or other foreign material from entering air channel, affects the normal operation of equipment.
5, the present invention path enter silk mouth and filament mouth place is provided with adjustable baffle plate, in order to reduce thermal loss.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and detailed description of the invention, the invention will be further described:
Fig. 1 is structural principle schematic diagram of the present invention, mainly air passage portion is shown;
Fig. 2 is structural principle schematic diagram of the present invention, and safety hook and adjustable baffle plate part are mainly shown;
Fig. 3 is the structural representation of the heating cabinet that powers on described in the present invention.
Detailed description of the invention
By reference to the accompanying drawings, a kind of polyethylene fiber drafting heat box, comprises casing 1, is provided with the path 2 of wire in casing 1, and the one end in path 2 is provided with into silk mouth 201 and air inlet, and the other end in path 2 is provided with filament mouth 202 and air outlet.Above path 2, be provided with the upper air duct 3 that two ends establish air inlet and air outlet respectively, be provided with the lower air duct 4 that two ends establish air inlet and air outlet respectively in the below in path 2, upper air duct 3 and lower air duct 4 are symmetrical arranged.Upper air duct 3 is connected with air inlet with the air outlet in path 2 with air outlet respectively with the air inlet of lower air duct 4.Be in the wind in 3 be disposed with cross flow fan 301, the heating cabinet 302 that powers on, upper blender 303 and upper ventilation shaft 304, upper blender 303 is arranged on the rear of the heating cabinet 302 that powers on, the air outlet of circulated air from path 2 is extracted out by upper cross flow fan 301, heat by the heating cabinet 302 that powers on being arranged on upper cross flow fan 301 rear, circulated air after heating flows into mixing in upper blender 303, then is entered in path 2 by path 2 air inlet through upper ventilation shaft 304.Equally, lower cross flow fan 401, lower electrical heating case 402, lower blender 403 and lower ventilation shaft 404 is disposed with in lower air duct 4, lower blender 403 is arranged on the rear of lower electrical heating case 402, the air outlet of circulated air from path 2 is extracted out by lower cross flow fan 401, heat by the lower electrical heating case 402 being arranged on lower cross flow fan 401 rear, circulated air after heating flows into mixing in lower blender 403, then is entered in path 2 by path 2 air inlet through lower ventilation shaft 404.
Above-mentioned upper blender 303 is identical with the structure of lower blender 403, and the cross section of upper blender 303 or lower blender 403 is hexagon, and has two groups of corresponding sides parallel to each other.In the vertical direction, the center of upper blender 303 is higher than the center of upper ventilation shaft 304, and the center of lower blender 403 is lower than the center of lower ventilation shaft 404.In addition, in the vertical direction, the air inlet of upper blender 303 or lower blender 403 and the center of air outlet be not at sustained height.Recirculating air flow is when upper blender 303 or lower blender 403, and wind speed first reduces rear increase, obtains good mixing, plays the effect of average rate samming.
The above-mentioned heating cabinet 302 that powers on is identical with the structure of lower electrical heating case 402, as shown in Figure 3, long heating tube 30201 and short heating tube 30202 is provided with powering in heating cabinet 302, the both sides being up and down distributed in the heating cabinet 302 that powers on of short heating tube 30202 symmetry, and the length of short heating tube 30202 is 200 millimeters, be used for making up the temperature deviation of both sides, path, solve the problem that both sides, path specific heat load is larger.Certainly, also the length of short heating tube 30202 can be set to 100 millimeters, 300 millimeters or 400 millimeters etc., in order to reach identical or close technique effect.
The arranged outside of above-mentioned casing 1 has two safety hooks 101, and safety hook 101 is arranged on the top of casing 1, and the bottom of casing 1 is provided with the hook Access Division 102 suitable with safety hook 101.When casing 1 is opened, safety hook 101 is fixed on hook Access Division 102 place suitable with it, avoids causing danger because executing agency is malfunctioning, ensure that safety during overhaul of the equipments.
The air outlet place in above-mentioned path 2 is provided with filter screen, prevents fracture of wire or other foreign material from entering air channel, affects the normal operation of equipment.
The silk mouth 201 that enters in above-mentioned path 2 is respectively arranged with two pieces of adjustable baffle plate 5 with filament mouth 202 place, two pieces of bilateral symmetry up and down that adjustable baffle plate 5 is entering silk mouth 201 or filament mouth 202 are arranged, and adjustable baffle plate 5 is all fixed on casing 1 and also can moves up and down relative to casing 1.When drafting heat box works, according to the open height entered between silk, wire vent Height Adjustment two pieces of adjustable baffle plate 5 and size, to reduce casing 1 and extraneous exchange heat, thus the energy consumption of drafting heat box can be reduced.
It should be noted that, under the instruction of this description, any equivalents done by those skilled in the art, or obvious variant, all should within protection scope of the present invention.
Claims (5)
1. a polyethylene fiber drafting heat box, comprise casing, in casing, be provided with one end there is the path into silk mouth and air inlet and the other end with filament mouth and air outlet, upper in path, below is provided with two ends and establishes the upper of air inlet and air outlet respectively, lower air duct, on, the air inlet of lower air duct is connected with air inlet with the air outlet in path respectively with air outlet, upper, blower fan is provided with in lower air duct, electrical heating case and ventilation shaft, it is characterized in that: on described, also blender is respectively arranged with in lower air duct, described blender is all positioned at the rear of the electrical heating case that its air channel, place is arranged, hot blast after the heating of electrical heating case enters in path through ventilation shaft by path air inlet again after blender mixing, the cross section of described blender is hexagon, and has two groups of corresponding sides parallel to each other, in the vertical direction, the center of described blender and the center of ventilation shaft be not at sustained height, air outlet place, described path is provided with filter screen, described path enter silk mouth and filament mouth place is provided with adjustable baffle plate.
2. a kind of polyethylene fiber drafting heat box according to claim 1, is characterized in that: be provided with the short heating tube that long heating tube and length are less than long heating tube in described electrical heating case.
3. a kind of polyethylene fiber drafting heat box according to claim 1, is characterized in that: the length of described short heating tube is between 100 ~ 500 millimeters.
4. a kind of polyethylene fiber drafting heat box according to claim 1, is characterized in that: described casing arranged outside has safety hook.
5. a kind of polyethylene fiber drafting heat box according to claim 4, is characterized in that: the number of described safety hook is set to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213726.9A CN104213221A (en) | 2013-05-31 | 2013-05-31 | Polyethylene fiber drawing hot box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213726.9A CN104213221A (en) | 2013-05-31 | 2013-05-31 | Polyethylene fiber drawing hot box |
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| Publication Number | Publication Date |
|---|---|
| CN104213221A true CN104213221A (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310213726.9A Pending CN104213221A (en) | 2013-05-31 | 2013-05-31 | Polyethylene fiber drawing hot box |
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| Country | Link |
|---|---|
| CN (1) | CN104213221A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970322A (en) * | 2016-06-28 | 2016-09-28 | 江苏恒科新材料有限公司 | Novel thermal-insulating hot box |
-
2013
- 2013-05-31 CN CN201310213726.9A patent/CN104213221A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970322A (en) * | 2016-06-28 | 2016-09-28 | 江苏恒科新材料有限公司 | Novel thermal-insulating hot box |
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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: 20141217 |