CN2270057Y

CN2270057Y - Hollow film continuous spinning machine

Info

Publication number: CN2270057Y
Application number: CN 96215771
Authority: CN
Inventors: 吕晓龙
Original assignee: MOTIANMO TECHNOLOGY ENGINEERIN
Current assignee: MOTIANMO TECHNOLOGY ENGINEERIN
Priority date: 1996-07-24
Filing date: 1996-07-24
Publication date: 1997-12-10
Anticipated expiration: 2006-07-24

Abstract

The utility model relates to a hollow-continuous spinning machine, which is characterized in that a set of feed liquid tanks 1, 2 are designed; the feed inlets and feed outlets of the feed liquid tanks are respectively connected by three-way valves 10, 11; when one tank works, the other tank debubbling with and repeated alternation for continuous spinning; a set of core liquid tanks 3, 4 are connected by an upper and a lower communicating pipes 5 and switching valves 17, 18; one tank work; after complementing liquid, the other tank is used for complementing the liquid to the work tank; a main and an auxiliary outer liquid grooves 21, 25 are respectively provided with overflow pipes 6 and 8; the main outer liquid groove is also provided with a liquid complementing pipe 7. The utility model is suitable for the continuous spinning of a porous spray head, and has high efficiency, low cost and good quality.

Description

The hollow membrane continuous spinning machine

The utility model relates to the hollow-fibre membrane spinning machine.

Hollow-fibre membrane (hereinafter to be referred as hollow membrane) is a kind of high-tech product.It can be used for multiple fields such as food, health, medicine, environmental protection, family.By contrast, the production equipment of hollow membrane, promptly hollow-fibre membrane spinning machine (hereinafter to be referred as spinning machine) is really relatively backward.This and scientific and technical personnel are less to its concern, and more energy is used to study the technology of film own, so that the not standard of standard, the also modular system of commercial-free as yet so far.Traced it to its cause two: one, the quality of film product has much room for improvement, and the extent of spreading amd application of film product is less, and is little to the demand of film product; The 2nd, the serialization of spinning machine or say the not fine as yet solution of suitability for industrialized production.Along with understanding and the raising of film product quality and the continuous increase of market demand of people to the film product, back one problem is more outstanding.

Spinning machine of the prior art generally all is batch (-type)s, and promptly every jar of feed liquid (preparation liquid) is stopped with finishing, and after the cleaning, charging is respinned.For example, the name of Chinese patent 2L92227864.4 report is called " doughnut spinning machine ", promptly is this situation.This equipment be used for laboratory research exploitation still can, be used for the suitability for industrialized production of certain scale, time and effort consuming, efficient is very low, product quality is also influenced.

The purpose of this utility model is exactly at the problems referred to above, but a kind of spinning machine of continuous industry production hollow membrane is provided, and with production efficiency, the reduction hollow membrane production cost that improves spinning machine, stablizes the hollow membrane quality.

The purpose of this utility model is following realization: at the critical part of original spinning machine, as material liquid tank 1 and valve 12, core liquid (interior solidification liquid abbreviation) jars 3 and valve 14, spinning nozzle 9, major and minor outer liquid (outer solidification liquid abbreviation)

groove

21,25, reel 23, spray head 24, forcing pipe 20 and accordingly under the constant situation of essential characteristics such as connecting line, design a liquid tank 2 and valve 13 and constitute one group with described material liquid tank 1 and valve 12, both charging apertures are connected by triple valve 11, and another is logical to be feed pipe (31); Both discharging openings are connected by triple valve 10, and another leads to and is connected with spinning nozzle; Also design a core flow container 4 and valve 15, constitute one group with described core flow container 3 and valve 14, both top is connected with switch valve 17 by pipeline 5, and the bottom was connected with switch valve 18 by communicating pipe 5, near

core flow container

3 and 4 places

liquid level pointer

29 and 30 are being housed respectively between two communicating pipe 5 up and down, the charging aperture of core flow container 4 connects core liquid pipe 32 through switch valve 16; Described outer liquid bath 21 is equipped with liquid supplementation pipe 7 and overflow pipe 6; On the outer liquid bath 25 of described pair overflow pipe 8 is housed.

The utility model has designed one group of material liquid tank 1 and 2, but by triple valve 10 alternatingly feeds, comes feed supplement by triple valve 11 again, to finish the serialization of feed liquid supply; Designed a core

assembly flow container

3 and 4 again, used communicating pipe 5, utilized law of connected vessels and by-

pass valve control

17,18, made core flow container 3 from core flow container 4, obtain core liquid on time and replenish, remained a certain amount of core liquid, used for continuous spinning with two jars of connections.The core flow container 4 of short covering is full by from outside benefit again.After core, feed liquid problem without interruption solve, solved the steady quality problem of outer liquid 27,28 again: promptly outside main, designed liquid supplementation pipe 7 and overflow pipe 6 on the liquid bath 21, outside pair, designed overflow pipe 8 on the liquid bath 25.Though this design is simple, can make the outer liquid 27,28 in the major and

minor groove

21,25 constantly obtain upgrading and keeing relative stability, to guarantee the hollow membrane quality.Experiment shows, new design can guarantee that industrialization produces continuously, need not shut down; With kind without cleaning equipment; Reduce or eliminate the waste and the quality problems that cause in the startup-shutdown process; Only with regard to effect, boost productivity one times, reduce production costs half, also stablized the hollow membrane quality simultaneously.

Below in conjunction with embodiment and accompanying drawing thereof in detail the utility model is described in detail.

Embodiment of the present utility model can followingly realize (referring to Fig. 1): design one group of material liquid tank 1 and 2, its charging aperture is connected by triple valve 11, another leads to and connects feed pipe 31, feed liquid can through feed pipe 31 by triple valve 11 controls alternately a slack tank fluid infusion in material liquid tank 1 or 2 to full.When one in material liquid tank 1 or 2 by triple valve 10 controls that connect its discharging opening during alternately to spinning nozzle 9 feed spinning, the material liquid tank 2 of feed liquid or 1 are not standing and defoaming state or operation for another.Spinning box work is finished, then change jar to continue and spin with triple valve 10, slack tank then by feed pipe 31 after triple valve 11 feed supplements, leave standstill, deaeration.Two jars of alternate repetitions transpositions of spinning, deaeration can guarantee that spinning carries out continuously.Be pointed out that the condition that material liquid tank 1 and 2 molten amount size should satisfy is that the time of work jar feed spinning should can guarantee spinning quality like this greater than the required time of feed liquid deaeration technology in another jar.For of the prior art single jar intermittently spinning then this requirement needn't be arranged, and very important when transforming two jars as for single jar.

The utility model has designed a core

assembly flow container

3 and 4 simultaneously.Both use lower communicating tube 5 and

switch valve

17,18 is formed linker.The liquid outlet of one of them jar (being also referred to as the work jar as core flow container 3) is connected with spinning nozzle 9, and for core liquid, the inlet of another jar (being also referred to as the fluid infusion jar as core flow container 4) is connected with liquid supplementation pipe 32 through switch valve 16.When the 3 supply spinning of work jar, fluid infusion jar 4, keeps and jar core liquid term harmonization of working by liquid supplementation pipe 32 material foot core liquid and temperature control through switch valve 16.When work jar 3 needs to replenish core liquid, then in time open closed originally switch

valve

18 and 17, the core liquid in the fluid infusion jar 4 covers the work jar 3 from lower communicating tube 5, and air is then through retrograde being back in the fluid infusion jar 4 of last communicating pipes 5.Understand and grasp the T/A of feed flow or fluid infusion for being more convenient for, between last lower communicating tube 5, two

liquid level pointers

29 and 30 are installed near

core flow container

3,4 places, to monitor the liquid level situation of change in the two

core flow containers

3,4 and the time of decision

console switch valve

17,18, guarantee that spinning normally carries out.Described material liquid tank 1,2, the required compressed air of technology in the

core flow container

3,4 is controlled supply respectively through

valve

12,13,14,15 successively by forcing pipe 20, process conditions such as temperature control are then consistent with prior art, in other words, the process conditions in the time of single jar are improved to and must satisfy after multiple jar.

Another important improvement of the present utility model is: designed

overflow pipe

6 and 8 respectively on the solidification liquid outside major and minor (hereinafter to be referred as outer liquid) 21,25.Main outer liquid bath 21 also is equipped with liquid supplementation pipe 7, to inject new outer liquid at any time;

Described overflow pipe 6, continuous again discharge contains the outer liquid of a certain amount of feed liquid solvent, and intermittently new row is old, thus stablizing of the outer liquid composition of maintenance guarantees the quality of continuous spinning.For the liquid level of not upsetting outer liquid 27 with meet the liquid level technological requirement, the installation site of described liquid supplementation pipe 7 should be outside main the wire vent side of liquid bath 21, and the mouth of pipe is lower than the technology liquid level of outer liquid 27.For keeping the stable of the technology liquid level of outer liquid 27 in main outer liquid bath 21, the installation of overflow pipe 6 port of export positions designs should be neat with the technology liquid level height flat of outer liquid 27.Embodiment adopts better overflow pipe 6 to be designed to " Z " shape, its arrival end should be installed near on the bottom position of outer liquid bath 21, the feed liquid quantity of solvent that cause contains here is maximum, it is enrichment region, the quality of outer in other words liquid 27 is the poorest, its port of export (Z-shaped upper end) then must with the technology liquid level of outer liquid 27 by concordant, can be referred to as the low level overflow pipe.As a same reason, the installation site of overflow pipe 8 also should be concordant with the technology liquid level of outer liquid 28 on the secondary outer liquid bath 25, and its height should make wire wrapping wheel 23 half be immersed in the outer liquid 28, to promote the further curing of hollow membrane.Outer liquid 28 in the secondary outer liquid bath 25 is replenished by spray head 24 at any time, and excessive outer liquid 28 both can be discharged by overflow pipe 8, and also discharge the position of controllable switch valve 19.Obviously, described overflow pipe 8 also can adopt with the same " Z " shape low level overflow pipe (although not drawing among the figure) of overflow pipe 6.

The utility model has solved continuous feed, feed liquor and process conditions adjustment, the therefore suitable especially porous spinning nozzle 9 that utilizes.This reduces production costs to enhancing productivity, and guarantees product quality, and is useful undoubtedly.It should also be noted that when adopting porous spinning nozzle 9 volume size of aforementioned material liquid tank 1,2 also should corresponding meeting the demands.

Claims

1. hollow membrane continuous spinning machine, it comprises that mainly material liquid tank (1) and valve (12), core flow container (3) and valve (14), spinning nozzle (9), major and minor outer liquid bath (21), (25), reel (23), spray close (24), forcing pipe (20) and corresponding connecting line etc., it is characterized in that designing a liquid tank (2) and valve (13) and constitute one group with described material liquid tank (1) and valve (12), both charging apertures are connected by triple valve (11), and another is logical to be feed pipe (31); Both discharging openings are connected by triple valve (10), and another leads to and is connected with spinning nozzle; Also design a core flow container (4) and valve (15), constitute one group with described core flow container (3) and valve (14), both top is connected with switch valve (17) by pipeline (5), and the bottom was connected with switch valve (18) by communicating pipe (5), locating to be equipped with respectively liquid level pointer (29) and (30) near core flow container (3) and (4) between two communicating pipe (5) up and down, the charging aperture of core flow container (4) connects core liquid pipe (32) through switch valve (16); The outer liquid bath (21) of described master is equipped with liquid supplementation pipe (7) and overflow pipe (6); On the outer liquid bath (25) of described pair overflow pipe (8) is housed.

2. hollow membrane continuous spinning machine according to claim 1 is characterized in that described spinning nozzle (4) is the porous spinning nozzle.

3. according to claim 1,2 described hollow membrane continuous spinning machines, it is characterized in that described liquid supplementation pipe (7) is contained in the wire vent side of the outer liquid bath (21) of described master, its position should be lower than the technology liquid level of outer solidification liquid (27); Described overflow pipe (6) is a zigzag, and its arrival end is contained in a side of advancing of described outer liquid bath (21), and should be installed on the bottom position of close main outer liquid bath (21), and port of export height is concordant with the technology liquid level of outer solidification liquid (27); The installation site of described overflow pipe (8) should be concordant with the technology liquid level that is outer solidification liquid (28).