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Inserting pipe-type spinning nozzle

A technology of inserting tube type and spinneret, which is applied in the direction of rayon manufacturing, hollow filament manufacturing, fiber chemical characteristics, etc., can solve the problem of uneven wall thickness of hollow fiber membranes, unsatisfactory product quality, affecting the stability of hollow membrane quality and Improvement and other issues, to achieve the effect of uniform wall thickness distribution and product quality improvement

Inactive Publication Date: 2009-10-28
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The insertion tube spinneret in the prior art needs to pre-adjust the concentricity of the insertion tube and the spinneret hole, but in the production process, the problem of uneven wall thickness of the spun hollow fiber membrane often occurs due to various reasons , leading to unsatisfactory product quality, and once the concentricity of the inserted tube spinneret is adjusted, it will not and cannot be adjusted during the production process, which affects the stability and improvement of the hollow membrane quality

Method used

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  • Inserting pipe-type spinning nozzle
  • Inserting pipe-type spinning nozzle
  • Inserting pipe-type spinning nozzle

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Embodiment Construction

[0012] Further describe the present invention below in conjunction with embodiment and accompanying drawing thereof. The specific embodiments are only for further clearly illustrating the structure of the concentricity adjuster of the spinneret of the present invention, and do not constitute limitations on the claims of the present invention.

[0013] Insert tube type spinneret (hereinafter referred to as spinneret for short, refer to Figure 1-4 ), comprising an insertion tube 1, a spinneret housing 2 and a spinneret plate 3, characterized in that the spinneret is equipped with a concentricity regulator 4, and the concentricity regulator 4 is connected with the spinneret housing 2 Cooperating casing 41, top screw 42 and adjusting screw 43 are formed; 3-4 fixed threaded holes 412 and 3-4 adjusting threads are evenly distributed on two mutually parallel cross-sections of the casing 41 hole 413; the top wire 42 and the adjusting screw 43 are fitted with the fixing screw hole 41...

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Abstract

The invention discloses an inserting pipe-type spinning nozzle, which comprises an inserting pipe, a spinning nozzle shell and a spinning plate and is characterized in that: the spinning nozzle is provided with a concentricity regulator consisting of a sleeve matched with the spinning nozzle shell, a terminal strand and a regulating bolt; the sleeve is evenly provided with 3 to 4 fixing screwed holes and 3-4 regulating screwed holes on two transversal sections which are parallel to each other; the terminal strand and the regulating bolts are assembled with the fixing screwed holes and the regulating screwed holes; and the sleeve is arranged on the spinning nozzle shell through the terminal strand and the regulating bolts are butted against the outer edge of the spinning plate. The inserting pipe-type spinning nozzle can regulate online in time according to the needs and guarantee the concentricity of the inserting pipe and the liquid outlet of casting film liquid.

Description

technical field [0001] The invention relates to hollow fiber membrane manufacturing equipment technology, in particular to an inserted tube spinneret for preparing hollow fiber membranes with the function of online adjustable concentricity. Background technique [0002] Hollow fiber membranes are one type of separation membranes. It is widely used in the field of membrane separation technology due to many advantages such as high packing density, simple production process, and miniaturized equipment. [0003] In the research and production of hollow fiber membranes, inserting tube spinnerets are mainly used. Compared with the special-shaped plate spinneret, the inserted tube spinneret can adapt to a much larger casting liquid range. There are many patents for the inserted tube spinneret, such as the hollow membrane inserted tube spinneret introduced by CN2167997; the inserted tube spinneret etc. for the hollow membrane introduced by CN1148639. The insertion tube spinneret ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/24
Inventor 安树林肖长发张宇峰胡晓宇
Owner TIANJIN POLYTECHNIC UNIV
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