US1861912A - Apparatus for heating air in dry spinning of artificial threads - Google Patents

Apparatus for heating air in dry spinning of artificial threads Download PDF

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Publication number
US1861912A
US1861912A US347135A US34713529A US1861912A US 1861912 A US1861912 A US 1861912A US 347135 A US347135 A US 347135A US 34713529 A US34713529 A US 34713529A US 1861912 A US1861912 A US 1861912A
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US
United States
Prior art keywords
spinning
air
cell
heating
dry spinning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US347135A
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English (en)
Inventor
Friederich Alfred
Schlack Paul
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ACETA GmbH
Original Assignee
ACETA GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ACETA GmbH filed Critical ACETA GmbH
Application granted granted Critical
Publication of US1861912A publication Critical patent/US1861912A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/04—Dry spinning methods

Definitions

  • Our present invention relates Vto a new apparatus useful in the manufacture of artificial silk according to the dry spinning process.
  • One of its objects is to provide such an apparatus in which the air, necessary to evaporate the solvent of the spinning solution, is preheated in a very simple manner and uniformly in a plurality of spinning cells.
  • the drawbacks of the two constructions are obviated in a simple and advantageous manner by heating the dry air by the heating apparatus of the spinning cells themselves.
  • cylindrical spinning cells are preferably used which are surrounded by a heating casing which is warmed by steam or by hot liquid or by an electric resistance coil.
  • an air casing concentric to the external heating casing, is traversed by the incoming dry air for a portion or for the whole length of the heating surface.
  • the air is heated in this path to a temperature slightly below that of the heating medium, but, by suiliciently increasing the heating surface, can approximate very closely to it.
  • the air casing is, preferably, insulated against the loss of heat externally.
  • FIG. l represents a vertical sectional view of an apparatus according to the invention and Fig. 2 is a top plan View of the same apparatus.
  • the same reference characters are used in Figs. 1 and 2 to designate the same parts.
  • A is a spinning cell of circular'cross section closed at both ends by plates B and C.
  • ani-nlet tube I) for the spinning solution is arranged bearing the spinning nozzle E.
  • the threads F pressed through the spinning nozzle E into the spinning cell A leave the latter through a funnel-shaped-o-pening G provided in the lower plate C.
  • the threads F are freed from the solvent during their passage through the spinning cell A by a current of warm air which passes through the cell :in the opposite direction.
  • the warm airY enters the cell through holes H which are symmetrically arranged at the lower part vof the cell and the air laden with the vaporized solvents is dischargedfromkthe cell through the outlet J.
  • K is a heating jacket which is narrowed at both ends K and is welded to the spinning cell A.
  • a heating liquid L is circulated through this heating jacket, entering at the bottom thereof through the pipe M and leaving at the top through the pipe N.
  • heating jacket K is surrounded concentrically by a second jacket O, which is spaced somewhat froin thejacket K, and which is open at theV top but is provided with a funnel shaped lower end O extending just below ⁇ the holes H in the spinning cell where it is firmly attached to the spinning cell.
  • the air space thus formed is in communication with the holes H. 'The drying air enters the top of the circular air space between the heating jacket K and the outer acket O at the point P and is sucked in the direction of the arrows through the holes H into the spinning cell A, leaving the latter through the outlet J.
  • the drying air is in contact with the outer surface of the heating jacket K and is gradually warmed in this manner so that when entering the spinning cell A its ternperature is only a few degrees below the teinperature of the heating liquid L.
  • the outer jacket O is surrounded by an insulating layer Q.
  • a tubular spinning cell provided at its top with means to supply the spinning solution in form of threads and at its bottom with an opening for discharging the threads formed, means for admitting uniformly the drying airl at the lower part and an outlet for the air at the upper part'of the spinning cell, heating means surrounding the cell and a casing external to thesaid heating v means, open at the top and in connection with the inlet openings of the spinning cell traversed by the drying air.
  • a tubular spinningcell pro- Y vided at its top with means to supply the Y spinning solution in form of threads and at its bottom with an opening for discharging the threads formed, said cell being provided further with symmetrically arrangedholes at its lower part and an outlet tube at its upper part, a heating jacket surrounding said spinning cell, and a casing external to the said heating jacket in communication with the holes at the lower part of the cell and insulated against loss of heat externally said casing being open at the top.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • General Induction Heating (AREA)
US347135A 1928-03-22 1929-03-14 Apparatus for heating air in dry spinning of artificial threads Expired - Lifetime US1861912A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE136334X 1928-03-22

Publications (1)

Publication Number Publication Date
US1861912A true US1861912A (en) 1932-06-07

Family

ID=5666327

Family Applications (1)

Application Number Title Priority Date Filing Date
US347135A Expired - Lifetime US1861912A (en) 1928-03-22 1929-03-14 Apparatus for heating air in dry spinning of artificial threads

Country Status (6)

Country Link
US (1) US1861912A (enrdf_load_stackoverflow)
BE (1) BE358025A (enrdf_load_stackoverflow)
CH (1) CH136334A (enrdf_load_stackoverflow)
FR (1) FR669362A (enrdf_load_stackoverflow)
GB (1) GB308350A (enrdf_load_stackoverflow)
NL (1) NL24170C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2847704A (en) * 1952-11-27 1958-08-19 American Enka Corp Method and apparatus for cooling melt spun threads
CN105133055A (zh) * 2015-09-16 2015-12-09 江阴中绿化纤工艺技术有限公司 方型夹套氨纶纺丝甬道

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2847704A (en) * 1952-11-27 1958-08-19 American Enka Corp Method and apparatus for cooling melt spun threads
CN105133055A (zh) * 2015-09-16 2015-12-09 江阴中绿化纤工艺技术有限公司 方型夹套氨纶纺丝甬道

Also Published As

Publication number Publication date
GB308350A (en) 1930-01-30
CH136334A (de) 1929-11-15
FR669362A (fr) 1929-11-15
NL24170C (enrdf_load_stackoverflow)
BE358025A (enrdf_load_stackoverflow)

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