DE1660682A1 - Chute for cooling fibers spun from polymer melts by means of an air stream - Google Patents

Description

ZcilEi IiIi-., LL / KcN
• MICO M «ir.cht-n i2

Vsesojuznyj nautfno-issledovatelskij 2I ₀ Febr "

Institut masin dlga proizvodstva “ ^

sintetic * eskich volokon .ba / Hu

8ernigov / USSR P 11873

Chute for cooling from polymer melts spun fibers by means of air flow

The "invention relates to a duct for cooling Fibers spun from polymer melts by means of an air stream and in particular on such a duct for cooling of fibers spun from polymer melts, which are provided with a chamber to collect the volatile admixtures is·

A shaft for cooling fibrous materials by means of an air stream is known, which has both a pressure chamber and a blow-off chamber and one between the nozzle and the peeling chamber of the shaft located annular chamber for collecting has volatile admixtures, which is sited with a siah over the entire circumference extending gap and which includes the bundle of fibers emerging from the nozzle of the spinning machine (cf. copyright of the UdSoR li; 2 ^ 39 » Kl.k ^ a / 6.0o).

The main shortcoming of the well-known shaft is that the arrangement of the gap over the entire circumference of the

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Annular chamber vortex of volatile admixtures, here " and to disrupt the air flow cycle in the upper part of the blow-off chamber leads · The last one has an effect negative on the "quality cer gespo Jienen Pasern from by the unevenness after the lobster * increased and the firm «- speed of the pulp can be reduced.

The arrangement of the device for catching volatile cases - Mixtures between the nozzle and the blow-off chamber leads to block them, especially with oaprolactam crystals, whereby the function of the mentioned device is unstable

The purpose of the invention is to avoid the disadvantages mentioned

The present invention has for its object to be a To develop a shaft, the collection chamber of which is an intensive one and uniform collection of the vapors excreted during the forming process, without affecting the quality of the to weaken spun fibers.

To solve this problem a Schacnt serves a pressure chamber, a blow-off chamber and a collecting chamber · - » mer, which has stomata, with aas suction of the Vapors from the volatile admixtures discharged during fiber formation pass through the collecting chamber; Inventionagemäü this thing is characterized by the fact that

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BATH ORIGINAL

Oil chimneys on the opposite side of the airflow outlet and is arranged on the upper part of the Abblasekamnier that in α he on lan-Jammer a wall is provided with at least one gap opening is provided, which is designed so that the suction of the vapors of the volatile admixtures took place in the direction of movement of the luxt current

It is preferably vorgssenen that the gap opening in the Pre-lifting direction of the fiber strand in the blow-off chamber aiigeoranet is"

Weu also suggested that the Wanaung V-shaped cross-section and is arranged at an angle to the direction of the air flow β

Furthermore is; it is advantageous that the wall is corrugated or aiolcaaokförEiig is and the stomata in which the Auffangkamiaer facing tips of the folds are arranged

13in llerkmal preferred is that the Auffangkam- mer is provided with a Wassersulaufstutzen and optionally substituted by one to 'Vasserzulauf distributing rope ·

In the following, two exemplary embodiments of the invention are explained with reference to the accompanying drawings.

Fig. Χ an overall view of the shaft as a side view;

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BATH

M 4 -

2 shows the collecting chamber according to the invention, also as a Seitenansi Applies;

Figo 3 is a plan view of the collecting chamber like Fig. 2; ■ - ■ = ■■ 4 shows another embodiment of the suction chamber; FIG. 5 shows a section along the line W of FIG. 4 ©

. Per duct for cooling the fibers spun from the polymer melt there is a pressure chamber 1 (Fig.O ₁ a blow-off chamber 2 connected to the same and a chamber 3 for collecting vapors from the admixtures separated out during the fiber-forming process, ζ ο B. of the caprolactam »The chamber 3 is arranged in the upper part of the Abbl8.sekam.iier 2 on the opposite side of the air flow supply and has a wall 4, which is arranged at an angle to the direction of movement of the vapors to be extracted, ... ZeBo of the caprolactam »

DiW wall 4 is, seen in cross section, V-shaped, as can be seen from FIG. 3 and v / eist a gap opening * - W voltage 5, which is arranged at the level of chamber 3 so that the capture of the gaprolaotam vapors is executed in the direction of movement ues -LttitStroms.

The chimney 3 is covered with the lid 6 (Fig. _3. 2) and the bottom and thus tightly closed. There is also a cut-out, which, for the purpose of supplying water for the purpose of removing it, loaded crystals , ZoB »of caprolactam, '

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serves. The curved one with one end on the side wall Plate 9 fixed to chamber 3 is used for distribution of the water supplyβ The removal of the dissolved Caprolaotam crystals, of the steam and the air takes place through the mare »-. zen 11..

In the second exemplary embodiment for the collecting chamber 3 ¹ , the wall 4 '(FIGS. 4 and 5) is corrugated or zigzag-shaped, the folds having gap openings 12 which are located in the tips on the inlet side of the air flow into the collecting chamber J ¹ are located. This ensures that the caprolaotam vapors are collected more intensively and more evenly. In order to wash off the caprolactam crystals uniformly, a perforated pipe 13 connected to the water supply nozzle 8 is arranged in the chamber 3 '

The attachment of the described in the two exemplary embodiments Collection chambers are attached by means of the * elements 14 (Figo 1) on the side wall of the chamber 2 and executed on the spinning head 15 · The movement of the fibers and the Air flow inside the shaft is accordingly through the arrows "A" and »" B "are indicated.

The shaft works as follows: The fiber material emerging from the nozzle 16 of the head 15 is fed to the blow-off chamber 2, where it passes through the

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the pressure chamber 1 supplied air flow ^ eküiilu vvirdo the Caprolactam fumes excreted during fiber formation are caught by the chamber 5. The through the gap ^ openings 5 (Fig «3) of the wall 4 continuous Danrpfe and the air is discharged via the nozzle 11 by means of a fan (not indicated in the drawing). In the second Embodiment, the shaft works in a similar way Wayβ

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Claims (2)

16 e o "B 85 21 · Febr. 1967 Ba / Eu P 11878 patent claims 1. Shaft for cooling fibers spun from polymer melts by means of an air stream, containing a pressure chamber, a blow-off caaier and a gas scanner, which has gap openings _} . The vapor of the volatile substances excreted during the "Easerformung" by the Aufiangkamnier takes place _f . ₃ eke nn ζ calibrate η et that the Auffanglcamner (3i 5 ¹ ) on the opposite side of the air flow supply and on the upper part of the Abblaseica-iwier (2) is an ^ eormet that in the Aufiaii ^ amüier (.3 »3 ^r ) a Wall (4 '^') is provided, which is provided with at least one gap opening (p, 12), which is designed so that the suction of the vapors of the volatile admixtures in the direction of movement of the air ; electricity takes place « 2. Shaft according to claim 1, characterized gekennzeicxinet., That the Slit opening (^, 12) in the Vorcaubricntung aas i'aser »- st3: ans ir- der Abblasekan'-ier (2) is anoranet » 109833/1513 3 · Sohaoht according to claim 1 or 2, characterized! that the wall (4) has a V-shaped cross section and is arranged at an angle to the direction of the air flow « 4. Shaft according to claim 1 or 2, characterized in that the wall (4 ¹ ) is corrugated or zickzaofcförjaig and the stomata (12) are arranged in the tips of the folds facing ^{the collecting chamber (J 1)} 5 · Sahaohfe according to one of the preceding claims, characterized in that the collecting chamber (j, 3 ¹ ) ^ with a water inlet connection (8) and optionally with a. the part (9, 13) distributing the water inlet is provided 10 9 8 3 3/151 3 original inspected