CN212039764U - High-precision integrated hollow fiber gas separation membrane spinning machine - Google Patents

Abstract

The utility model discloses a high accuracy integral type hollow fiber gas separation membrane spinning machine, spinning equipment include spinning head and spinning support, and the spinning support is including adjusting the support, adjusts the support and includes vertical support of arranging, be located the movable block of support one side, promote the movable block removal subassembly that reciprocates, fix the wet accuse subassembly of temperature on the movable block, and the wet accuse subassembly of temperature includes from last to shelving the piece of arranging in proper order down, heating piece, the wet piece of accuse. The utility model discloses in through the use of vacuum pump, got rid of the remaining micro bubble in first order membrane liquid cauldron, second grade membrane liquid cauldron, the core liquid cauldron, the spinning support includes temperature function and dehumidification function for the membrane liquid can keep certain temperature when pouring into the spinning head in order to ensure that the membrane liquid is extruded from the spinning head with optimal fluid form; the humidity of the extruded liquid is effectively controlled after extrusion, so that the quality of the gas separation membrane is ensured.

Description

High-precision integrated hollow fiber gas separation membrane spinning machine

Technical Field

The utility model relates to a spinning machine field especially relates to a high accuracy integral type hollow fiber gas separation membrane spinning machine.

Background

The hollow fiber membrane is in a fiber shape and is hollow inside. The asymmetric hollow fiber membrane only has the separation function of the outer surface skin, and the other part only has the self-supporting function. Compared with other membrane varieties, the hollow fiber membrane component with the asymmetric structure has the advantages of good separation effect, high efficiency, large filling density, small occupied area, obvious investment income and extremely wide prospect. Because of these advantages, the membrane products currently used for gas separation all employ asymmetric hollow fiber membranes of this morphology. Therefore, a high-precision hollow fiber membrane spinning machine capable of continuously and automatically producing gas separation membranes is urgently needed.

The technical difficulty of manufacturing the asymmetric hollow fiber membrane suitable for the field of gas separation by a dry-wet spinning process is to ensure that a special membrane structure required by gas separation is formed, namely, the surface of the asymmetric membrane has to be compact in structure and free of defects, so that different types of gas molecules can be effectively separated; the thickness of the skin needs to be in a nanometer scale, so that the resistance of gas separation is reduced; (iii) the lower support layer, which is formed simultaneously with the membrane skin, needs to have a sponge-like porous morphology to further reduce the resistance of gas molecules to pass through the membrane. To simultaneously realize the three very strict requirements on the film form, very precise control of the operation parameters in the process of spinning and film making is required, and the main technical difficulties include: before entering a spinning head, the membrane liquid and the core liquid need to effectively filter micro impurity particles existing in the liquid and remove residual micro bubbles in the membrane liquid and the core liquid; when the membrane liquid is injected into a spinning head, a certain temperature is required to be kept so as to ensure that the membrane liquid is extruded from the spinning head in an optimal fluid form; the membrane liquid and the core liquid are extruded from the spinning head and then enter the coagulation tank through a section of air below the spinning head instead of directly entering the coagulation tank. The humidity of the air in this section has a great influence on the quality of the gas separation membrane product, so that the humidity of the air in this section also needs to be controlled.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high accuracy integral type hollow fiber gas separation membrane spinning machine.

The utility model discloses an innovation point lies in the utility model discloses in through the use of vacuum pump, got rid of the remaining micro bubble in first order membrane liquid cauldron, second grade membrane liquid cauldron, the core liquid cauldron, the spinning support includes temperature function and dehumidification function for the membrane liquid can keep certain temperature when pouring into the spinning head in order to ensure that the membrane liquid is extruded from the spinning head with the optimal fluid form; the distance of the extruded liquid from the spinning head to the condensation tank is adjusted through the flushing of the nitrogen, so that the distance of an air gap is adjusted, the humidity of the extruded liquid is effectively controlled after extrusion, and the quality of the gas separation membrane is guaranteed.

In order to realize the purpose of the utility model, the technical proposal of the utility model is that: a high-precision integrated hollow fiber gas separation membrane spinning machine comprises a membrane liquid feeding device, a core liquid feeding device, a spinning device, a condensation pool, a collection pool and a washing pool, wherein the membrane liquid feeding device comprises a first-stage membrane liquid kettle, a membrane liquid filter, a second-stage membrane liquid kettle and a membrane liquid injection pump which are sequentially communicated; the spinning device comprises a spinning head and a spinning support, the membrane liquid injection pump and the core liquid injection pump are communicated with the spinning head through pipelines, the spinning support comprises an adjusting support, the adjusting support comprises a vertically arranged support, a moving block positioned on one side of the support, a moving assembly for pushing the moving block to move up and down, and a temperature and humidity control assembly fixed on the moving block, the temperature and humidity control assembly comprises a placing block, a heating block and a humidity control block which are sequentially arranged from top to bottom, the placing block, the heating block and the humidity control block are respectively provided with a first perforation, a second perforation and a third perforation which are communicated with each other, the spinning head penetrates through the first perforation and the second perforation and is erected on the placing block, heating rod holes are formed in the placing block and the heating block, a heating rod is arranged in the heating rod holes, an air filling channel is formed in the humidity control block, a ring-shaped channel is arranged in the wall body of, the annular channel is provided with a plurality of inclined downward air outlet holes which are arranged at equal intervals along the circumferential direction of the third perforation; the coagulation tank is positioned below the spinning head, and the collection tank and the washing tank are sequentially arranged behind the coagulation tank.

Furthermore, the top in the third perforation is provided with a circle of annular boss, and the air outlet is located the bottom of the annular boss. After the membrane liquid and the core liquid are extruded from the spinning head, nitrogen is filled around the extruded liquid downwards, so that the humidity of the extruded liquid is adjusted.

Furthermore, the third perforation comprises three sections from top to bottom, one end of the third perforation is an annular boss, the two sections are gradually expanded sections from top to bottom, and the three sections are cylindrical sections. The direction of nitrogen distribution was adjusted.

Furthermore, the moving assembly comprises an upper fixing block, a lower fixing block, two polished rods and a lead screw, wherein the upper fixing block and the lower fixing block are fixed on one side of the support, the two polished rods and the lead screw are positioned between the two fixing blocks, a threaded through hole and two through holes are formed in the moving block, the moving block is connected with the lead screw in a screwing mode through the threaded through hole, the polished rods penetrate through the through holes, and the diameter of the through holes is larger than that of the polished; the two ends of the polish rod are respectively fixed on the upper fixing block and the lower fixing block, the bottom of the screw rod is connected with the lower fixing block through a bearing, a second through hole for penetrating through the screw rod is formed in the upper fixing block, and the diameter of the second through hole is larger than that of the screw rod.

Further, the secondary membrane liquid kettle is connected with a vacuum pump. The process of the membrane liquid entering the secondary membrane liquid kettle is accelerated with the assistance.

Further, the coagulation tank is equipped with two and is a coagulation tank and No. two coagulation tanks respectively, and a coagulation tank is located under the spinneret, and No. two coagulation tanks are adjacent with a coagulation tank, and a coagulation tank bottom is equipped with a runner, and the top between a coagulation tank and No. two coagulation tanks is equipped with No. two runners, is equipped with two action wheels in No. two coagulation tanks, is equipped with No. three runners between coagulation tank and the collecting pit. Two kinds of condensation liquid can be put in two kinds of condensation ponds, and two kinds of condensation liquid can produce two kinds of exchange speed, and exchange speed can influence the size of membrane hole, and two kinds of exchange speed can make the aperture of membrane hole reach the anticipated requirement.

Further, be equipped with the collecting pit action wheel in the collecting pit, be equipped with the washing pool action wheel in the washing pool, collecting pit action wheel and washing pool action wheel are the same, and collecting pit action wheel and washing pool action wheel cover are on detachable drive arrangement. Can change collecting pit action wheel and washing pool action wheel, reduce manual artifical needs that transfer the membrane product on the collecting pit action wheel to the washing pool action wheel.

Further, detachable drive arrangement includes that driving motor and the cross-section of being connected with driving motor are non-circular shape drive shaft, and the one end that the drive shaft is close to the driving motor of motor is equipped with the limiting plate, and the tip that driving motor was kept away from to the drive shaft is equipped with a plurality of counter bores, and the rigid coupling has the spring in the counter bore, is fixed with the fixture block on the spring. Can be easily interchanged.

Furthermore, a circulating water inlet and a circulating water outlet are arranged on the washing tank, circulating pipes are arranged on the circulating water inlet and the circulating water outlet, and circulating pumps are arranged on the circulating pipes. So that the washing liquid circularly flows in the washing tank, and the washing effect and speed are further improved.

Furthermore, heating devices are arranged in the first-stage membrane liquid kettle, the second-stage membrane liquid kettle and the coagulation pool. The dope solution can be kept at a certain temperature when being injected into the spinning head to ensure that the dope solution is extruded from the spinning head in an optimal fluid form.

The utility model has the advantages that:

1. the utility model discloses in through the use of vacuum pump, got rid of the remaining micro bubble in first order membrane liquid cauldron, second grade membrane liquid cauldron, the core liquid cauldron, the spinning support includes temperature function and dehumidification function for the membrane liquid can keep certain temperature when pouring into the spinning head in order to ensure that the membrane liquid is extruded from the spinning head with optimal fluid form; the distance of the extruded liquid from the spinning head to the condensation tank is adjusted through the flushing of the nitrogen, so that the distance of an air gap is adjusted, the humidity of the extruded liquid is effectively controlled after extrusion, and the quality of the gas separation membrane is guaranteed.

2. The utility model discloses well collecting pit action wheel and washing pool action wheel can be changed, reduce manual artifical needs that shift the membrane product on the collecting pit action wheel to the washing pool action wheel.

3. The utility model discloses in use through the circulating pipe makes the washing liquid circulate in the washing tank and flows, and then promotes the effect and the speed of washing.

Drawings

Fig. 1 is a schematic view of the present invention.

FIG. 2 is a schematic structural view of a spin stand.

Fig. 3 is a schematic structural diagram of the moving assembly.

Fig. 4 is a schematic structural diagram of the detachable driving device.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

Example 1: as shown in fig. 1, 2, 3 and 4, a high-precision integrated hollow fiber gas separation membrane spinning machine comprises a membrane liquid feeding device, a core liquid feeding device, a spinning device, a coagulation tank 1, a collection tank 2 and a washing tank 3, wherein a heating device is arranged in the coagulation tank 1, the membrane liquid feeding device comprises a first-stage membrane liquid kettle 4, a membrane liquid filter 5, a second-stage membrane liquid kettle 6 and a membrane liquid injection pump 7 which are sequentially communicated, and heating devices are arranged in the first-stage membrane liquid kettle 4 and the second-stage membrane liquid kettle 6. The core liquid feeding device comprises a core liquid kettle 8, a core liquid filter 9 and a core liquid injection pump 10 which are sequentially communicated, wherein a primary membrane liquid kettle 4, a secondary membrane liquid kettle 6 and the core liquid kettle 8 are communicated with an air compressor 11, the primary membrane liquid kettle 4 pumps membrane liquid through a vacuum pump 12, the core liquid kettle 8 pumps core liquid through the vacuum pump 12, and the secondary membrane liquid kettle 6 is connected with the vacuum pump 12; the spinning device comprises a spinning head 13 and a spinning support 14, a membrane liquid injection pump 7 and a core liquid injection pump 10 are communicated with the spinning head 13 through pipelines, the spinning support 14 comprises an adjusting support, the adjusting support comprises a support 14.1 which is vertically arranged, a moving block 14.2 which is positioned on one side of the support 14.1, a moving assembly 14.3 which pushes the moving block 14.2 to move up and down, and a temperature and humidity control assembly which is fixed on the moving block 14.2, the moving assembly 14.3 comprises an upper fixed block 14.18 which is fixed on one side of the support 14.1, a lower fixed block 14.18, two polished rods 14.19 which are positioned between the two fixed blocks 14.18 and a lead screw 14.20, a threaded through hole 14.21 and two one-number through holes 14.22 are arranged on the moving block 14.2, the moving block 14.2 is screwed with the lead screw 14.21 and 14.20, the polished rods 14.19 penetrate through the one-number through holes 14.22, and the; two ends of a polish rod 14.19 are respectively fixed on an upper fixing block 14.18 and a lower fixing block 14.18, the bottom of a screw rod 14.20 is connected with the lower fixing block 14.18 through a bearing 14.23, a second through hole 14.24 for penetrating through the screw rod 14.20 is arranged on the upper fixing block 14.18, and the diameter of the second through hole 14.24 is larger than that of the screw rod 14.20. The temperature and humidity control assembly comprises a placing block 14.4, a heating block 14.5 and a humidity control block 14.6 which are sequentially arranged from top to bottom, the placing block 14.4, the heating block 14.5 and the humidity control block 14.6 are respectively provided with a first through hole 14.7, a second through hole 14.8 and a third through hole 14.9 which are communicated with each other, a spinning head 13 penetrates through the first through hole 14.7 and the second through hole 14.8 and is erected on the placing block 14.4, the placing block 14.4 and the heating block 14.5 are provided with heating rod holes 14.10, heating rods 14.11 are arranged in the heating rod holes 14.10, the humidity control block 14.6 is provided with an air filling channel 14.12, a ring-shaped channel 14.13 is arranged in the wall body of the humidity control block 14.6, the ring-shaped channel 14.13 is communicated with the air filling channel 14.12, the ring-shaped channel 14.13 is provided with a plurality of inclined downward air outlet holes 14.14 which are arranged at equal intervals along the circumferential direction of the third through hole 14.9, the top of the ring-shaped through hole 14.9 is provided with a ring-shaped boss. The third through hole 14.9 comprises three sections from top to bottom, one end of the third through hole is an annular boss, the two sections are gradually expanded sections 14.16 from top to bottom, and the three sections are cylindrical sections 14.17. The coagulation tank 1 is positioned below the spinning head 13, and the collection tank 2 and the washing tank 3 are sequentially arranged behind the coagulation tank 1. Coagulation bath 1 is equipped with two and is a coagulation bath 1.1 and No. two coagulation baths 1.2 respectively, No. one coagulation bath 1.1 is located under spinning head 13, No. two coagulation baths 1.2 and a coagulation bath 1.1 are adjacent, a coagulation bath 1.1 bottom is equipped with runner 1.3 No. one, the top between a coagulation bath 1.1 and No. two coagulation baths 1.2 is equipped with runner 1.4 No. two, be equipped with two action wheels 1.5 in No. two coagulation baths 1.2, be equipped with runner 1.6 No. three between coagulation bath 1 and the collecting pit 2. Be equipped with collecting pit action wheel 2.1 in the collecting pit 2, be equipped with washing pit action wheel 3.1 in the washing pit 3, collecting pit action wheel 2.1 is the same with washing pit action wheel 3.1, collecting pit action wheel 2.1 and washing pit action wheel 3.1 cover are on detachable drive arrangement, detachable drive arrangement includes that driving motor 15.1 and the cross-section of being connected with driving motor 15.1 are non-circular's drive shaft 15.2, the one end that driving shaft 15.2 is close to driving motor 15.1 of motor is equipped with limiting plate 15.3, the tip that driving motor 15.1 was kept away from to drive shaft 15.2 is equipped with a plurality of counter bores 15.4, the rigid coupling has spring 15.5 in the counter bore 15.4, be fixed with fixture block 15.6 on the spring 15.5. The washing tank 3 is provided with a circulating water inlet 3.2 and a circulating water outlet 3.3, the circulating water inlet 3.2 and the circulating water outlet 3.3 are provided with circulating pipes 3.4, and the circulating pipes 3.4 are provided with circulating pumps 3.5.

When in work: preparing membrane liquid according to a formula by an operator, after uniformly mixing, automatically sucking the membrane liquid into a primary membrane liquid kettle 4 through a vacuum pump 12, and assisting the membrane liquid to automatically remove residual micro-bubbles in the primary membrane liquid kettle 4 through the vacuum pump 12; then the membrane liquid is automatically pumped into a membrane liquid filter 5 from a primary membrane liquid kettle 4 through an air compressor 11, and tiny impurities in the membrane liquid are removed; the membrane liquid is pushed by the air compressor 11 to flow through the membrane liquid filter 5 and then automatically flows into the secondary membrane liquid kettle 6, and the process can be accelerated under the assistance of a vacuum pump connected to the rear end of the secondary membrane liquid kettle 6; then, a vacuum pump 12 is utilized to assist the membrane liquid to automatically remove residual micro-bubbles in the secondary membrane liquid kettle 6; after bubbles are removed in the secondary membrane liquid kettle, the membrane liquid automatically enters the membrane liquid injection pump 7, the membrane liquid injection pump 7 can accurately control the feeding flow of the membrane liquid, and the membrane liquid is pushed into the rear-end spinning head 13 according to the flow requirement.

An operator prepares core liquid according to a formula, after the core liquid is uniformly mixed, the core liquid is automatically sucked into a core liquid kettle 8 through a vacuum pump 12, the vacuum pump 12 is utilized to assist the core liquid to automatically remove residual micro bubbles in the core liquid kettle 8, the core liquid is automatically pumped into a core liquid filter 9 from the core liquid kettle 8 through an air compressor 11, the core liquid is pretreated through an optimized core liquid filter to remove micro impurities in the core liquid, the core liquid automatically enters a core liquid injection pump 10 after being pushed to flow through the core liquid filter 9 by the air compressor 11, the liquid injection pump 10 can accurately control the feeding flow of the core liquid, and the core liquid is pushed into a rear-end spinning head 13 according to the flow requirement.

The membrane liquid and the core liquid are connected into a spinning head 13 suitable for preparing the gas separation membrane through a hose, and the spinning head 13 is placed on a special spinning support 14. The spinning support 14 can adjust the temperature and humidity of the extrusion liquid extruded by the spinning head 13, the temperature is adjusted by a heating rod, when the humidity is adjusted, the screw rod 14.20 can be rotated, so that the distance between the spinning head 13 and the coagulation tank 1 is controlled, nitrogen is filled from the air filling channel 14.12, the nitrogen enters the annular channel 14.13, and the nitrogen is flushed from the air outlet hole 14.14 to form an air gap; the membrane liquid and the core liquid are extruded from the spinning head 13 and then enter the coagulation tank 1 at the rear end. The first coagulation tank 1.1 is positioned right below the spinning head 13, and the membrane liquid and the core liquid extruded from the spinning head 13 vertically enter the first coagulation tank 1.1 after passing through an air gap, and start to coagulate to form a final hollow fiber membrane shape. The hollow fiber membrane sequentially bypasses the second rotating wheel 1.4 from the first rotating wheel 1.3 in the first coagulation tank 1.1, two driving wheels 1.5 which are arranged in the second coagulation tank 1.2 and driven by a motor in tandem are arranged, the hollow fiber membrane which is preliminarily coagulated can be continuously wound on the two driving wheels 1.5 for multiple times, and then the running time of the primary membrane in the coagulation tank is prolonged as far as possible in a limited space, so that the residual organic solvent in the primary membrane is fully removed, and the micro form of the hollow fiber membrane suitable for gas separation is formed. After leaving the second coagulation tank 1.2, the formed hollow fiber membrane bypasses the third rotating wheel 1.5 and enters the collection tank 2, and is wound on the collection tank driving wheel 2.1 for subsequent treatment processes. The collecting tank driving wheel 2.1 can be easily detached and exchanged with the washing tank driving wheel 3.1 at the rear end. An operator detaches the collecting tank driving wheel 2.1 which collects all the hollow fiber membranes from the collecting tank 2 and installs the collecting tank driving wheel in the washing tank 3, and meanwhile, the hollow washing tank driving wheel 3.1 in the washing tank 3 is installed in the collecting tank 2, so that the membranes can be manufactured next time. When washing, the circulating pump 3.5 is started to make the washing liquid circularly flow in the washing pool 3.

The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims (10)

1. A high-precision integrated hollow fiber gas separation membrane spinning machine comprises a membrane liquid feeding device, a core liquid feeding device, a spinning device, a condensation pool, a collection pool and a washing pool, and is characterized in that the membrane liquid feeding device comprises a first-stage membrane liquid kettle, a membrane liquid filter, a second-stage membrane liquid kettle and a membrane liquid injection pump which are sequentially communicated, the core liquid feeding device comprises a core liquid kettle, a core liquid filter and a core liquid injection pump which are sequentially communicated, the first-stage membrane liquid kettle, the second-stage membrane liquid kettle and the core liquid kettle are communicated with an air compressor, the first-stage membrane liquid kettle is pumped in by a membrane liquid pump, and the core liquid kettle is pumped in by a membrane liquid pump through a vacuum pump; the spinning device comprises a spinning head and a spinning support, the membrane liquid injection pump and the core liquid injection pump are communicated with the spinning head through pipelines, the spinning support comprises an adjusting support, the adjusting support comprises a vertically arranged support, a moving block positioned on one side of the support, a moving assembly for pushing the moving block to move up and down, and a temperature and humidity control assembly fixed on the moving block, the temperature and humidity control assembly comprises a placing block, a heating block and a humidity control block which are sequentially arranged from top to bottom, the placing block, the heating block and the humidity control block are respectively provided with a first perforation, a second perforation and a third perforation which are communicated with each other, the spinning head penetrates through the first perforation and the second perforation and is erected on the placing block, heating rod holes are formed in the placing block and the heating block, a heating rod is arranged in the heating rod holes, an air filling channel is formed in the humidity control block, a ring-shaped channel is arranged in the wall body of, the annular channel is provided with a plurality of inclined downward air outlet holes which are arranged at equal intervals along the circumferential direction of the third perforation; the coagulation tank is positioned below the spinning head, and the collection tank and the washing tank are sequentially arranged behind the coagulation tank.

2. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 1, wherein a ring of annular boss is arranged at the top of the inside of the third through hole, and the air outlet is positioned at the bottom of the annular boss.

3. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 2, wherein the three-number perforation comprises three sections from top to bottom, one end of the three-number perforation is an annular boss, the two sections are gradually expanded sections from top to bottom, and the three sections are cylindrical sections.

4. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 1, wherein the moving assembly comprises an upper fixing block and a lower fixing block fixed on one side of the support, and two polished rods and a lead screw positioned between the two fixing blocks, a threaded through hole and two through holes are formed in the moving block, the moving block is screwed with the lead screw through the threaded through hole, the polished rods penetrate through the through holes, and the diameter of the through holes is larger than that of the polished rods; the two ends of the polish rod are respectively fixed on the upper fixing block and the lower fixing block, the bottom of the screw rod is connected with the lower fixing block through a bearing, a second through hole for penetrating through the screw rod is formed in the upper fixing block, and the diameter of the second through hole is larger than that of the screw rod.

5. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 1, wherein the secondary membrane liquid kettle is connected with a vacuum pump.

6. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 1, wherein the coagulation tank is provided with a first coagulation tank and a second coagulation tank, the first coagulation tank is located right below the spinning head, the second coagulation tank is adjacent to the first coagulation tank, the first runner is arranged at the bottom of the first coagulation tank, the second runner is arranged at the top between the first coagulation tank and the second coagulation tank, the two driving wheels are arranged in the second coagulation tank, and the third runner is arranged between the coagulation tank and the collection tank.

7. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 6, wherein a collecting tank driving wheel is arranged in the collecting tank, a washing tank driving wheel is arranged in the washing tank, the collecting tank driving wheel and the washing tank driving wheel are the same, and the collecting tank driving wheel and the washing tank driving wheel are sleeved on the detachable driving device.

8. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 7, wherein the detachable driving device comprises a driving motor and a driving shaft which is connected with the driving motor and has a non-circular cross section, a limiting plate is arranged at one end of the driving shaft close to the driving motor of the motor, a plurality of counter bores are arranged at the end part of the driving shaft far away from the driving motor, springs are fixedly connected in the counter bores, and clamping blocks are fixed on the springs.

9. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 1, wherein a circulating water inlet and a circulating water outlet are arranged on the washing tank, circulating pipes are arranged on the circulating water inlet and the circulating water outlet, and a circulating pump is arranged on the circulating pipes.

10. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 1, wherein a heating device is arranged in the primary membrane liquid kettle, the secondary membrane liquid kettle and the coagulation pool.

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