CN116492854A

CN116492854A - Hollow fiber ultrafiltration membrane production line and production method

Info

Publication number: CN116492854A
Application number: CN202310675794.0A
Authority: CN
Inventors: 陈杰; 陈康; 施林伟; 赵应群; 廖乃上
Original assignee: Jiangsu Nolai Intelligent Water Equipment Co ltd
Current assignee: Jiangsu Nolai Intelligent Water Equipment Co ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2023-07-28
Anticipated expiration: 2043-06-07
Also published as: CN116492854B

Abstract

The invention discloses a hollow fiber ultrafiltration membrane production line and a production method, wherein the production line comprises a defoaming type filtering reaction kettle, a spinning machine, an adjustable filament arranging mechanism, a winding mechanism, a dipping bath tank and a forced air drying mechanism which are sequentially arranged; the production method comprises the following steps: s1, stirring and defoaming the mixture in a defoaming type filtering reaction kettle to form film-making liquid; s2, filtering impurities; s3, producing membrane filaments by a spinning machine; s4, adjusting the adjustable filament arranging mechanism, and adjusting the film filament drying process, wherein the film filaments enter the adjustable filament arranging mechanism to contact with the solution; s5, the film wire enters a winding mechanism and is wound by the winding mechanism; s6, transferring the coiled film wire into a dipping bath tank, immersing for a preset time, and taking out; s7, transferring the membrane filaments to a forced air drying mechanism for batch air drying. The invention eliminates bubbles and impurities in the film-making liquid, ensures film wire solidification and film wire pore-forming, enables the film wire to be dried under preset conditions, and improves film wire drying efficiency. The invention is suitable for the technical field of hollow fiber ultrafiltration membrane production and processing.

Description

Hollow fiber ultrafiltration membrane production line and production method

Technical Field

The invention belongs to the technical field of hollow fiber ultrafiltration membrane production and processing, and particularly relates to a hollow fiber ultrafiltration membrane production line and a hollow fiber ultrafiltration membrane production method.

Background

At present, in the process of producing the hollow fiber ultrafiltration membrane, raw materials are required to be stirred to form membrane-making liquid. However, due to stirring, the film-forming liquid contains a large amount of bubbles, and besides the bubbles, the bubbles and impurities can influence the quality of film yarns produced in the later period. The membrane filaments discharged from the spinning machine enter a water tank and are gradually solidified, and then pass through filament arranging equipment in the water tank, so that a plurality of membrane filaments are gradually gathered and pass through the water tank. However, in order to achieve sufficient curing of the film wire and pore forming of the film wire, the length of the existing water tank is long, the dry process (the dry process refers to the vertical height from the spinneret to the coagulation bath surface) before the film wire enters the water tank is not adjustable, the performance of the film wire cannot be adjusted by adjusting the dry process, and the water tank occupies a large space. Moreover, the existing airing chambers are mainly aired by natural wind, so that the time consumption is long, the film wires cannot be accurately ensured to be in a preset humidity range, the airing efficiency of the film wires is affected, and the quality of the film wires is affected.

Disclosure of Invention

The invention provides a hollow fiber ultrafiltration membrane production line and a production method, which are used for eliminating bubbles and impurities in membrane preparation liquid, enabling the dry process of membrane wires entering an adjustable wire arranging mechanism to be adjustable, realizing the purpose of reducing the occupied area of the adjustable wire arranging mechanism by adjusting the roundabout degree of the membrane wires in the adjustable wire arranging mechanism, and simultaneously ensuring the full solidification of the membrane wires and the pore forming of the membrane wires; and ensure that the membrane silk is in predetermined humidity range and dry, improve the efficiency of drying of membrane silk.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

the utility model provides a hollow fiber milipore filter production line, includes spinning machine and dipping bath, still includes defoaming formula filtration reaction kettle, adjustable row silk mechanism, winding mechanism and the forced air-drying mechanism that sets gradually along the production machine direction of membrane silk, the spinning machine is located between defoaming formula filtration reaction kettle and the adjustable row silk mechanism, dipping bath is located between winding mechanism and the forced air-drying mechanism.

Further, the defoaming type filtering reaction kettle comprises a filtering type stirring unit arranged in the kettle body, a slide rail extending vertically is arranged on an upper end cover of the kettle body, a linear motor is assembled on the slide rail, a driving motor is arranged on the linear motor, an output shaft of the driving motor is coaxially connected with a driving rod, and the lower end of the driving rod extends into the kettle body along the axis of the kettle body and is coaxially connected with the filtering type stirring unit; and a feeding connector and a pressure control connector are constructed on the upper end cover.

Further, the filtering stirring unit comprises a filtering shell with a small diameter end facing downwards and overlapped with the axis of the kettle body, a discharge hopper matched with the filtering shell is arranged at the lower part of the kettle body, a guide vane overlapped with the axis of the filtering shell is arranged at the large diameter end of the filtering shell, the lower end of the driving rod is fixedly connected to the center of the guide vane, the outer edge of the guide vane is fixedly connected with the outer edge of the large diameter end of the filtering shell through a plurality of connecting plates, a flow passing port is formed between the adjacent connecting plates, and a slag discharging valve is arranged at the lower end of the filtering shell.

Further, the adjustable wire arranging mechanism comprises an adjustable film wire soaking unit, a wire discharging wheel set, a plurality of fixed wire arranging wheel sets and a plurality of movable wire arranging wheel sets which are arranged on the wire arranging water tank, wherein the adjustable film wire soaking unit and the wire discharging wheel sets are respectively positioned at two ends of the wire arranging water tank, each fixed wire arranging wheel set and each movable wire arranging wheel set are immersed in the wire arranging water tank and positioned between the adjustable film wire soaking unit and the wire discharging wheel sets, the fixed wire arranging wheel sets and the movable wire arranging wheel sets are alternately arranged in sequence along the length direction of the wire arranging water tank, the movable wire arranging wheel sets are higher than the fixed wire arranging wheel sets, and the movable wire arranging wheel sets are in transmission connection with an active adjusting mechanism for adjusting the movable wire arranging wheel sets to move along the length direction of the wire arranging water tank.

Further, the adjustable membrane wire soaking unit comprises a connecting seat arranged on a water guide cover, the lower end of the water guide cover is arranged on a wire drainage water tank, a plurality of water column wire soaking pieces are arranged on the connecting seat side by side, membrane wires penetrate through the corresponding water column wire soaking pieces from top to bottom and are communicated with corresponding distribution branch pipes on a distribution header pipe through fixed wire drainage wheel groups and movable wire drainage wheel groups, the distribution header pipe is connected with an outlet of a pressure water pump through a water outlet pipe, an inlet of the pressure water pump is communicated with the lower part of the wire drainage water tank, and a water drainage joint is constructed on the water outlet pipe.

Further, the water column wire dipping piece comprises a water outlet seat constructed on the connecting seat, a plurality of water outlet holes penetrating through the water outlet seat along the vertical direction are uniformly formed in the water outlet seat along the circumferential direction of the water outlet seat, a mounting hole is constructed in the middle of the water outlet seat, an inner water jacket is arranged at the mounting hole, the axial two ends of the inner water jacket extend out of the upper end and the lower end of the water outlet seat respectively, an outer water jacket overlapped with the axis of the inner water jacket is constructed at the outer edge of the water outlet seat, the axial two ends of the outer water jacket extend out of the upper end and the lower end of the water outlet seat respectively, the two ends of the inner water jacket are positioned in the outer water jacket, and a water column forming cavity is formed between the inner water jacket and the outer water jacket; the middle part of the water outlet seat is provided with a water distribution cavity, each water outlet hole is divided into two parts by the water distribution cavity, a water supply channel is arranged on the connecting seat and at the position corresponding to the water distribution cavity, and the water supply channel is communicated with the corresponding distribution branch pipe.

Further, the forced air drying mechanism comprises a plurality of film wire air drying groups which are arranged in an air drying chamber side by side, each film wire air drying group comprises a plurality of film wire air drying racks which are arranged on a base, the upper ends and the lower ends of the film wire air drying racks are respectively communicated with an upper air distribution pipe and a lower air distribution pipe, and the upper air distribution pipes and the lower air distribution pipes of all the forced air drying mechanisms are communicated with a uniform air distribution main pipe.

Further, the film wire airing rack comprises an upper hole pipe and a lower hole pipe which are oppositely arranged, wherein the mutually close ends of the upper hole pipe and the lower hole pipe are connected through a hard spring, wind power torsion driving parts are respectively arranged at the mutually far ends of the upper hole pipe and the lower hole pipe, and the upper hole pipe and the lower hole pipe are respectively communicated with an upper air distribution pipe and a lower air distribution pipe through the two wind power torsion driving parts; at least one group of hanging arm groups are constructed on the upper hole pipe, at least one group of hanging arm groups are also constructed on the lower hole pipe, each hanging arm group comprises a plurality of hanging arms which are uniformly arranged along the circumference of the upper hole pipe or the lower hole pipe, each hanging arm extends outwards along the radial direction of the upper hole pipe or the lower hole pipe, buckling pieces are respectively pressed at the upper end and the lower end of the membrane silk bundle, and each buckling piece is assembled on the corresponding hanging arm.

Further, the wind power torsion driving piece comprises an assembling disc which is constructed at the end part of the upper hole pipe or the lower hole pipe, ventilation holes are distributed at the position of the assembling disc corresponding to the upper hole pipe or the lower hole pipe, and a plurality of swirl blades are constructed on the end surface of one end of the assembling disc far away from the hard spring; the assembly disc is movably assembled in the assembly cover, and the assembly cover is communicated with the upper air distribution pipe or the lower air distribution pipe through the air guide pipe.

The invention also discloses a production method of the hollow fiber ultrafiltration membrane by using the production line of the hollow fiber ultrafiltration membrane, which comprises the following steps:

s1, stirring and defoaming a mixture of main raw materials including polyvinylidene fluoride, polyvinylpyrrolidone and N, N-dimethylacetamide in a defoaming type filtering reaction kettle;

s2, forming film-making liquid after stirring, discharging the film-making liquid out of the defoaming type filtering reaction kettle, and filtering impurities in the film-making liquid by the defoaming type filtering reaction kettle in the discharging process;

s3, feeding the film forming liquid into a spinning machine, and producing film yarns;

s4, adjusting the adjustable filament arranging mechanism, adjusting the drying process of the membrane filament, and enabling the membrane filament to enter the adjustable filament arranging mechanism and fully contact with the solution in the adjustable filament arranging mechanism within a preset time period;

s5, the film wire leaves the adjustable wire arranging mechanism and is wound by the winding mechanism;

s6, transferring the coiled film wire into a dipping bath tank, immersing for a preset time, and then taking out;

s7, transferring the membrane filaments to a forced air drying mechanism for batch air drying.

Compared with the prior art, the invention adopts the structure, and the technical progress is that: according to the invention, the functions of stirring and filtering the defoaming agent are realized through the defoaming type filtering reaction kettle, so that the raw materials are fully mixed and reacted to form the film-making liquid, bubbles in the film-making liquid are eliminated, and impurities in the film-making liquid are filtered out, so that the influence of the bubbles and the impurities on the quality of the film filaments in the later stage is avoided; according to the invention, the drying process of the membrane wires before entering the solution in the adjustable wire arranging mechanism can be adjusted through the adjustable wire arranging mechanism, and the circuitous degree of the membrane wires in the adjustable wire arranging mechanism can be adjusted, so that the drying process is ensured to be in a preset range, and the membrane wires are ensured to be fully solidified in the solution in the adjustable wire arranging mechanism and the pore forming of the membrane wires on the premise that the floor area of the adjustable wire arranging mechanism is smaller; when the membrane tows soaked in the soaking bath are soaked for a preset time, a worker takes out the membrane tows and assembles the membrane tows on the forced air drying mechanism, the forced air drying mechanism is supplied with air to realize batch synchronous airing of the membrane tows, the air supply is properly humidified according to specific humidity requirements, and the proper membrane tows are in a better environment to be aired; in summary, the invention can eliminate bubbles and impurities in the film-making liquid, so that the drying process of the film wire entering the adjustable wire arranging mechanism is adjustable, and the purpose of reducing the occupied area of the adjustable wire arranging mechanism is realized by adjusting the roundabout degree of the film wire in the adjustable wire arranging mechanism, and meanwhile, the full solidification of the film wire and the pore forming of the film wire are ensured; and the film yarn is ensured to be in a preset humidity range for airing, and the airing efficiency of the film yarn is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.

In the drawings:

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a defoaming filtration reaction kettle according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an axial structure of a filtering stirring unit at the bottom of a kettle body in the defoaming filtering reaction kettle according to the embodiment of the invention;

FIG. 4 is an axial structural cross-section of a filtering stirring unit in the defoaming type filtering reaction kettle, which is positioned in the middle of the kettle body;

FIG. 5 is a schematic diagram of a structure in which a filtering stirring unit and a driving rod are connected in a defoaming type filtering reaction kettle according to an embodiment of the invention;

FIG. 6 is an enlarged view of the structure of the portion A in FIG. 4;

FIG. 7 is a schematic diagram of an adjustable filament arrangement mechanism according to an embodiment of the present invention;

FIG. 8 is an enlarged view of the structure of the portion B in FIG. 7;

FIG. 9 is a schematic view of another angle of the adjustable filament arrangement mechanism according to an embodiment of the present invention;

FIG. 10 is a side view of an adjustable wire arranging mechanism according to an embodiment of the present invention;

FIG. 11 is a side view of an adjustable membrane wire soaking unit in an adjustable wire arranging mechanism according to an embodiment of the present invention after a water guide cover is removed;

FIG. 12 is a partial cross-sectional view of an adjustable membrane filament submerging unit in an adjustable filament arranging mechanism according to an embodiment of the present invention;

fig. 13 is a front view of fig. 12;

FIG. 14 is a schematic view of a winding mechanism according to an embodiment of the present invention;

FIG. 15 is an enlarged view of the structure of the portion C in FIG. 14;

fig. 16 is a schematic structural view of a forced air drying mechanism according to an embodiment of the present invention;

FIG. 17 is a schematic view of a partial structure of a membrane filament air drying group in a forced air drying mechanism according to an embodiment of the present invention;

fig. 18 is a schematic structural view of a film wire airing rack in a forced air drying mechanism according to an embodiment of the present invention;

fig. 19 is a front view of a film wire hanging rack in a forced air drying mechanism according to an embodiment of the present invention;

FIG. 20 is a schematic view of a film wire hanger according to an embodiment of the present invention after the wind torque driving member is separated from the upper hole pipe;

FIG. 21 is a schematic view of the structure of FIG. 20 at another angle;

FIG. 22 is a schematic structural view of two ends of a membrane tow assembled on two hanging arms after being respectively pressed by two fasteners;

FIG. 23 is a schematic view showing a structure in which two ends of a membrane tow are respectively pressed by two fasteners according to an embodiment of the present invention;

FIG. 24 is a schematic view of a fastener according to an embodiment of the present invention after being disassembled.

Marking parts: 100-defoaming type filtering reaction kettle, 101-kettle body, 102-discharge hopper, 103-discharge outlet, 104-supporting leg, 105-upper end cover, 106-feed connector, 107-pressure control connector, 108-slide rail, 109-linear motor, 110-driving motor, 111-driving rod, 112-filtering stirring unit, 1121-filtering shell, 1122-supporting blade, 1123-guide impeller, 1124-connecting plate, 1125-overflow outlet, 1126-assembling unit, 1127-round table valve body, 1128-conical spring, 200-spinning machine, 300-adjustable filament discharge mechanism, 301-filament discharge water tank, 302-adjustable film filament soaking unit, 3021-connecting seat, 3022-water column filament soaking piece, 30221-water outlet seat, 30222-water outlet hole, 30223-water distribution cavity, 30224-outer water jacket, 30225-inner water jacket, 30226-water column molding cavity, 3023-adjusting cap, 30231-adjusting sleeve, 30232-elastic piece, 30233-deforming nozzle, 3024-water guiding cover, 3025-water discharging pipe, 3026-water supply channel, 303-fixed wire discharging wheel set, 304-movable wire discharging wheel set, 305-movable beam, 306-transmission seat, 3061-seat body, 3062-transmission sleeve, 3063-locking screw, 307-fixed beam, 308-rotating seat, 309-power motor, 310-transmission screw, 311-wire discharging wheel set, 312-distributing header pipe, 313-distributing branch pipe, 314-pressure water pump, 315-water discharging pipe, 316-water discharging joint, 400-dipping bath groove, 500-winding mechanism, 501-bracket, 502-first shaft lever, 503-second shaft lever, 504-inserted link, 505-telescopic spring, 506-driving wheel, 507-supporting bar, 508-first connecting sleeve, 509-first hinging rod, 510-first tightening sleeve, 511-second connecting sleeve, 512-second hinging rod, 513-second tightening sleeve, 514-support, 600-forced air drying mechanism, 601-base, 602-lower air distribution pipe, 603-upper air distribution pipe, 700-film wire hanging rack, 701-lower hole pipe, 702-upper hole pipe, 703-hard spring, 704-hanging arm, 7041-arm body, 7042-limit groove, 705-wind power torsion driving piece, 7051-assembling disk, 7052-whirlwind blade, 7053-vent hole, 7054-assembling cover, 7055-air guide pipe, 800-film wire, 900-buckling piece, 901-buckling plate, 902-limit bar, 903-buckle, 904-buckle hole, 1000-film wire bundle.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are presented for purposes of illustration and explanation only and are not intended to limit the present invention.

The invention discloses a hollow fiber ultrafiltration membrane production line, which is shown in fig. 1-24, and comprises a defoaming type filtration reaction kettle 100, a spinning machine 200, an adjustable filament arranging mechanism 300, a winding mechanism 500, a dipping bath 400 and a forced air drying mechanism 600 which are sequentially arranged along the production and processing directions of membrane filaments 800. The working principle and the advantages of the invention are as follows: the defoaming type filtering reaction kettle 100 is used for realizing the functions of stirring and filtering a defoaming agent, so that raw materials are fully mixed and reacted to form film-making liquid, bubbles in the film-making liquid are eliminated, impurities in the film-making liquid are filtered, and the influence of the bubbles and the impurities on the quality of the later-stage film wire 800 is avoided; the invention can adjust the dry process before the membrane wire 800 enters the solution in the adjustable wire arranging mechanism 300 through the adjustable wire arranging mechanism 300, and can also adjust the roundabout degree of the membrane wire 800 in the adjustable wire arranging mechanism 300, thereby not only ensuring that the dry process is in a preset range, but also ensuring that the membrane wire 800 is fully solidified in the solution in the adjustable wire arranging mechanism 300 and the pore forming of the membrane wire 800 on the premise that the adjustable wire arranging mechanism 300 occupies a small area; when the membrane tows 1000 soaked in the soaking bath 400 are soaked for a preset time, a worker takes out the membrane tows 1000 and assembles the membrane tows on the forced air drying mechanism 600, batch synchronous airing of the membrane tows 1000 is realized by supplying air to the forced air drying mechanism 600, and the air supply is properly humidified according to specific humidity requirements, and the membrane tows 1000 are properly aired in a better environment; as can be seen from the above, the method can eliminate bubbles and impurities in the film forming liquid, so that the drying process of the film wire 800 entering the adjustable wire arranging mechanism 300 is adjustable, and the purpose of reducing the occupied area of the adjustable wire arranging mechanism 300 is realized by adjusting the roundabout degree of the film wire 800 in the adjustable wire arranging mechanism 300, and meanwhile, the full solidification of the film wire 800 and the pore forming of the film wire 800 are ensured; and the film wire 800 is ensured to be dried in a preset humidity range, and the drying efficiency of the film wire 800 is improved.

As a preferred embodiment of the present invention, as shown in fig. 2 to 6, the defoaming type filtering reaction vessel 100 includes a vessel body 101, a filtering stirring unit 112, a driving rod 111, and a driving motor 110. Wherein, the filter stirring unit 112 is installed in the kettle body 101, a slide rail 108 is installed on the upper end cover 105 of the kettle body 101, the slide rail 108 extends upwards along the vertical direction, a linear motor 109 is assembled on the slide rail 108, and the linear motor 109 can move along the vertical direction on the slide rail 108. The driving motor 110 of this embodiment is mounted on a linear motor 109, the output shaft of the driving motor 110 is coaxially connected with a driving rod 111, the lower end of the driving rod 111 extends into the kettle body 101 along the axis of the kettle body 101, the lower end of the driving rod 111 is coaxially connected with a filtering stirring unit 112, a feeding connector 106 and a pressure control connector 107 are constructed on an upper end cover 105, a discharge outlet 103 is constructed at the lower end of the kettle body 101, and the kettle body 101 is supported on the ground by a plurality of support legs 104 fixed at the lower part thereof. The working principle of the embodiment is as follows: the method comprises the steps that a worker sequentially adds different raw materials into a kettle body 101 through a feed connector 106, then closes the feed connector 106, pressurizes the kettle body 101 through a pressure control connector 107, enables the pressure in the kettle body 101 to reach a preset value, and closes the pressure control connector 107; then, the driving motor 110 and the linear motor 109 are controlled to act, so that the driving motor 110 drives the filtering type stirring unit 112 to rotate through the driving rod 111, and meanwhile, the linear motor 109 drives the driving motor 110 to move up and down along the sliding rail 108, so that the filtering type stirring unit 112 stirs the raw materials in the kettle body 101, and meanwhile, the filtering type stirring unit 112 moves vertically in the kettle body 101, and the raw materials in the kettle body 101 are ensured to be sufficiently and efficiently mixed, and in the process, the filtering type stirring unit 112 mainly plays a role of stirring; after raw materials are mixed and fully reacted to form film forming liquid, vacuumizing the kettle body 101 through the pressure control joint 107, controlling the linear motor 109 to move along the sliding rail 108 from bottom to top, driving the motor 110 to drive the filter type stirring unit 112 to rotate in the moving process, enabling the filter type stirring unit 112 to rotate in the gradually upward moving process, separating the kettle body 101 into an upper cavity and a lower cavity by the rotating and rising filter type stirring unit 112, enabling the film forming liquid in the upper cavity to enter the lower cavity after passing through the filter type stirring unit 112, namely enabling the film forming liquid to gradually enter the lower cavity through the filter type stirring unit 112 under the action of centrifugal force, so that bubbles in the film forming liquid are effectively eliminated, and enabling impurities in the film forming liquid to be isolated by the filter type stirring unit 112, so that the impurities are always positioned in the upper cavity, and performing secondary defoaming according to specific conditions after the filter type stirring unit 112 is displaced above the liquid level; specifically, before secondary defoaming, the driving motor 110 is stopped, the linear motor 109 is controlled to return to the lower part of the sliding rail 108, then the driving motor 110 is started, and the linear motor 109 drives the driving motor 110 to move upwards until the filtering stirring unit 112 is displaced above the liquid level again; after defoaming, the pressure of the kettle body 101 is increased by the pressure control joint 107, the discharge port 103 is opened, and the film forming liquid in the kettle body 101 is discharged.

As a preferred embodiment of the present invention, as shown in fig. 5 to 6, the filter type stirring unit 112 includes a filter housing 1121, a fluid director wheel 1123, and a slag discharging valve. Wherein, the filter shell 1121 is a conical shell structure, the filter shell 1121 is fully distributed with filter holes, the small diameter end of the filter shell 1121 faces downwards, the filter shell 1121 coincides with the axis of the kettle body 101, and a slag discharging valve is arranged at the lower end of the filter shell 1121. The slag discharging valve has a concrete structure that the slag discharging valve comprises an assembling sleeve 1126 which is constructed at the lower end of a filter shell 1121, a round table-shaped valve body 1127 is assembled at the lower end of the assembling sleeve 1126, the round table-shaped valve body 1127 seals the lower end of the assembling sleeve 1126, a conical spring 1128 is assembled in the assembling sleeve 1126, and the upper end and the lower end of the conical spring 1128 are respectively connected with the upper end of the assembling sleeve 1126 and the upper end of the round table-shaped valve body 1127. The lower portion of the kettle body 101 of this embodiment is configured as a discharge hopper 102, and the discharge hopper 102 is adapted to the filter housing 1121. When the filtering shell 1121 needs to be deslagged, the linear motor 109 is controlled to move to the lower part of the sliding rail 108, so that the filtering shell 1121 is matched in the discharging hopper 102, then the kettle body 101 is pressurized until the circular table-shaped valve body 1127 is opened, the discharging port 103 is opened again, impurities and the like in the filtering shell 1121 are discharged, the pressure of the kettle body 101 is controlled to normal pressure after deslagging is finished, the circular table-shaped kettle body 101 returns under the action of the conical spring 1128, the lower end of the matched body 1126 is closed, and finally the discharging port 103 is closed. When the kettle body 101 needs to be cleaned, cleaning liquid is injected into the kettle body 101, the driving motor 110 and the linear motor 109 are started, the filter stirring unit 112 reciprocates up and down in the kettle body 101, the purpose of full cleaning is achieved, and after cleaning, the cleaning liquid in the kettle body 101 is discharged through the slag discharging operation steps. The impeller 1123 of this embodiment is disposed at the large diameter end of the filter housing 1121, and the axes of the impeller 1123 and the filter housing 1121 coincide, the lower end of the driving rod 111 is fixedly connected at the center of the impeller 1123, a plurality of supporting blades 1122 are configured on the inner wall of the filter housing 1121, these supporting blades 1122 are uniformly disposed along the circumferential direction of the filter housing 1121, and both ends of each supporting blade 1122 extend to the upper and lower ends of the filter housing 1121, respectively, the outer edge of the impeller 1123 is fixedly connected with the outer edge of the large diameter end of the filter housing 1121 via a plurality of connecting plates 1124, each connecting plate 1124 is fixedly connected with the corresponding supporting blade 1122, and a through-flow port 1125 is formed between the adjacent connecting plates 1124. When the driving motor 110 drives the filter stirring unit 112 to rotate forward, the filter shell 1121 and the impeller 1123 rotate forward, and the film forming liquid in the kettle body 101 enters the filter shell 1121 through the impeller 1123 and is discharged from each flow-through port 1125, so that positive circulation is formed; when the driving motor 110 drives the filter stirring unit 112 to rotate reversely, the filter shell 1121 and the impeller 1123 rotate reversely, the film forming liquid in the filter shell 1121 is discharged out of the filter shell 1121 through the impeller 1123, and then enters the filter shell 1121 through each flow-through port 1125, so that reverse circulation is formed. The front and back sides of the driving motor 110 are replaced and are matched with the vertical movement of the filtering shell 1121 along the kettle body 101, so that the film-forming liquid is fully mixed and reacted in the kettle body 101 without dead angles.

As a preferred embodiment of the present invention, as shown in fig. 7-10, the adjustable filament arrangement mechanism 300 includes an adjustable film filament immersion unit 302 mounted on a filament arrangement water tank 301, a filament outlet wheel set 311, a plurality of fixed filament arrangement wheel sets 303, and a plurality of movable filament arrangement wheel sets 304. Wherein, adjustable membrane silk soaking unit 302 and play silk wheelset 311 are located the both ends department of arranging silk basin 301 respectively, and every fixed silk wheelset 303 and every movable silk wheelset 304 are all submerged in arranging silk basin 301 moreover, and these fixed silk wheelsets 303 and movable silk wheelsets 304 all are located between adjustable membrane silk soaking unit 302 and play silk wheelset 311 to fixed silk wheelset 303 and movable silk wheelset 304 are arranged alternately in proper order along the length direction of arranging silk basin 301, and the height of movable silk wheelset 304 is higher than the height of fixed silk wheelset 303. Each movable wire arranging wheel set 304 in this embodiment is in transmission connection with an active adjusting mechanism, and the active adjusting mechanism is used for adjusting the movable wire arranging wheel sets 304 to move along the length direction of the wire arranging water tank 301. The membrane wires 800 are led into the wire-discharging water tank 301 after passing through the adjustable membrane wire soaking unit 302 side by side, sequentially pass through the fixed wire-discharging wheel sets 303 and the movable wire-discharging wheel sets 304 which are alternately arranged, finally are converged by the wire-discharging wheel sets 311 and discharged out of the wire-discharging water tank 301, and then enter the winding procedure. In this embodiment, each movable filament arranging wheel set 304 is mounted on a corresponding movable beam 305, each movable beam 305 is slidably connected to the filament arranging water tank 301, a fixed beam 307 is mounted at a position of the filament arranging water tank 301 close to the filament outlet wheel set 311, a rotating seat 308 is mounted on the fixed beam 307, and a transmission seat 306 is mounted on each movable beam 305. The active adjusting mechanism of the embodiment comprises a power motor 309 installed on the adjustable membrane wire soaking unit 302, an output shaft of the power motor 309 is coaxially connected with a transmission screw 310, the transmission screw 310 is in transmission connection with each transmission seat 306, and an end part of the transmission screw 310 is in rotation connection with the rotation seat 308. The transmission seat 306 of this embodiment has a specific structure that the transmission seat 306 includes a seat body 3061, a transmission sleeve 3062 is rotationally connected to the seat body 3061, the transmission sleeve 3062 is in threaded connection with a transmission screw 310, and a locking screw 3063 is in threaded connection with the seat body 3061, and the locking screw 3063 is used for locking the seat body 3061 and the transmission sleeve 3062, or unlocking the locking of the seat body 3061 and the transmission sleeve 3062, so that the two can rotate relatively. The working principle of the embodiment is as follows: the side-by-side film wires 800 sequentially pass through each part in the wire arranging water tank 301 in the mode of fig. 10, and the position of the movable wire arranging wheel set 304 on the wire arranging water tank 301 is adjusted to realize the adjustment of the roundabout degree of the film wires 800 in the wire arranging water tank 301, so that the film wires 800 with a limited length can pass through the wire arranging water tank 301 with a sufficient length, and further the film wires 800 can be fully solidified and reacted. Specifically, the power motor 309 is controlled to drive the driving screw 310 to rotate, so that the driving screw 310 drives at least one movable wire arranging wheel set 304 to act, and in the process of the movable wire arranging wheel set 304 acting, the movable wire arranging wheel set 304 drives the film wire 800 to gradually move, so that the roundabout degree of the film wire 800 is changed. In the rotation process of the driving screw 310 of this embodiment, the seat 3061 on the movable wire arranging wheel set 304 moving along with the driving sleeve 3062 is locked by the locking screw 3063, and the seat 3061 on the movable wire arranging wheel set 304 which is not displaced is in a rotation connection state with the driving sleeve 3062, i.e. the locking screw 3063 on the seat 3061 contacts and locks the seat 3061 and the driving sleeve.

As a preferred embodiment of the present invention, as shown in fig. 9-10, the adjustable filament immersion unit 302 includes a connection base 3021, a water guiding cover 3024, and a plurality of water column filament immersion members 3022. Wherein, the connection seat 3021 is installed on the water guiding cover 3024, a drain pipe 3025 is communicated with the water guiding cover 3024 and is positioned above the connection seat 3021, the lower end of the drain pipe 3025 extends into the wire draining water tank 301, and the lower end of the water guiding cover 3024 is installed on the wire draining water tank 301. The multiple water column wire dipping members 3022 of the present embodiment are installed on the connecting base 3021 side by side, and the side by side film wires 800 pass through the corresponding water column wire dipping members 3022 from top to bottom, and then pass through the fixed wire arranging wheel sets 303 and the movable wire arranging wheel sets 304 which are alternately arranged. Each water column wire dipping member 3022 communicates with a corresponding distribution branch 313 on the distribution header 312, the distribution header 312 is connected to an outlet of the pressure water pump 314 through a water outlet pipe 315, an inlet of the pressure water pump 314 communicates with a lower portion of the wire discharge water tank 301, and a water discharge joint 316 is constructed on the water outlet pipe 315. The working principle of the embodiment is as follows: the pressure water pump 314 pumps the solution in the filament draining water tank 301 into each water column filament dipping piece 3022, the solution stretches upwards and downwards in the form of a water column in the water column filament dipping piece 3022, the downwards-stretched water column part is connected with the solution in the filament draining water tank 301, the membrane filaments 800 are contacted with the upwards-stretched water column part before and after passing through the water column filament dipping piece 3022 and contacted with the solution in the filament draining water tank 301 through the downwards-stretched water column part, so that the whole process of the membrane filaments 800 passing through the water column filament dipping piece 3022 is contacted with the solution, the distance from the outlet of the spinning machine 200 to the upper end of the upwards-stretched water column part of the membrane filaments 800 is a dry process, and the height of the upwards-stretched water column part is changed by controlling the pressure of the solution entering the water column filament dipping piece 3022, so that the dry process is adjusted. The upward extending water column portion of this embodiment falls back under gravity into the water guide hood 3024 and is then discharged into the wire drain tank 301 through the drain pipe 3025.

As a preferred embodiment of the present invention, as shown in fig. 11-13, water column wire dipping member 3022 includes a water outlet seat 30221, an inner water jacket 30225 and an outer water jacket 30224. Wherein, the water outlet seat 30221 is configured on the connection seat 3021, a plurality of water outlet holes 30222 are uniformly formed on the water outlet seat 30221 along the circumferential direction thereof, each water outlet hole 30222 penetrates through the water outlet seat 30221 along the vertical direction, a mounting hole is configured in the middle of the water outlet seat 30221, an inner water jacket 30225 is mounted at the mounting hole, and two axial ends of the inner water jacket 30225 extend out of the upper and lower ends of the water outlet seat 30221 respectively. The outer water jacket 30224 of this embodiment is configured at the outer edge of the water outlet seat 30221 in a sleeved manner, and the outer water jacket 30224 coincides with the axis of the inner water jacket 30225, the two axial ends of the outer water jacket 30224 extend out of the upper and lower ends of the water outlet seat 30221, respectively, and the two ends of the inner water jacket 30225 are located in the outer water jacket 30224, and a water column molding cavity 30226 is formed between the inner water jacket 30225 and the outer water jacket 30224. The middle part of the water outlet seat 30221 of this embodiment is provided with a water distribution cavity 30223, each water outlet hole 30222 is divided into two parts by the water distribution cavity 30223, a water supply channel 3026 is provided on the connection seat 3021 at a position corresponding to the water distribution cavity 30223, and the water supply channel 3026 is communicated with the corresponding distribution branch 313. The working principle of the embodiment is as follows: the membrane wire 800 passes through the inner water jacket 30225 from top to bottom, the pumped solution enters the water distribution cavity 30223 through the water supply channel 3026, then enters the water column forming cavity 30226 through the water outlet 30222, and then forms a continuous water column, the continuous water column is divided into the downward extending water column part and the upward extending water column part, and the upward extending water column part passes through the inner water jacket 30225 under the action of gravity, so that the membrane wire 800 at the inner water jacket 30225 always keeps the solution flowing, and the membrane wire 800 always contacts the solution from the upward extending water column part to the wire drainage water tank 301 through the downward extending water column part. In this embodiment, in order to adjust the radial length of the water column, the shape of the water column, and the range of action of the water column, adjustment caps 3023 are respectively mounted at the upper and lower ends of the outer water jacket 30224. The adjusting cap 3023 is specifically configured, where the adjusting cap 3023 includes an adjusting sleeve 30231, the adjusting sleeve 30231 is screwed on the outer water jacket 30224, a plurality of elastic pieces 30232 are configured at one end of the adjusting sleeve 30231, which is far away from the water outlet seat 30221, the elastic pieces 30232 are uniformly arranged along the circumferential direction of the adjusting sleeve 30231, the elastic pieces 30232 are configured in the deformation nozzle 30233 to serve as an elastic support of the deformation nozzle 30233, each elastic piece 30232 extends toward the axis of the deformation nozzle 30233, and the deformation nozzle 30233 is made of rubber or silica gel. By rotating the adjusting sleeve 30231, the adjusting sleeve 30231 moves on the outer water jacket 30224 along the axial direction of the outer water jacket 30224, and therefore the contact position between the elastic piece 30232 and the end part of the outer water jacket 30224 changes, the deformation degree of the elastic piece 30232 supported by the outer water jacket 30224 changes, and the purpose of changing the caliber of the deformation nozzle 30233 is achieved. The diameter of the deformable nozzle 30233 changes, so that the radial length of the water column, the shape of the water column and the action range of the water column are changed.

As a preferred embodiment of the present invention, as shown in fig. 14-15, the winding mechanism 500 includes a first shaft 502 and a second shaft 503 which are disposed opposite to each other, a plug rod 504 is configured on the first shaft 502, a slot for inserting the plug rod 504 is formed on the second shaft 503, cross sections of the plug rod 504 and the slot are regular polygons, a telescopic spring 505 is sleeved on the plug rod 504, and two ends of the telescopic spring 505 are respectively connected with corresponding ends of the first shaft 502 and the second shaft 503. The first shaft 502 of this embodiment is rotatably mounted on a bracket 501, the bracket 501 is mounted on a support 514, a driving wheel 506 is mounted on the first shaft 502, and the driving wheel 506 is driven to drive the first shaft 502 and the second shaft 503 to rotate synchronously. A plurality of support rods 507 are uniformly provided along the circumferential direction of the first shaft 502 outside thereof, the axis of each support rod 507 is parallel to the axis of the first shaft 502, and one end of the support rod 507 extends to the outer end of the second shaft 503. In the embodiment, a first connecting sleeve 508 and a second connecting sleeve 511 are respectively sleeved on a first shaft rod 502 and a second shaft rod 503, a plurality of first hinging rods 509 are uniformly hinged on the first connecting sleeve 508 along the circumferential direction of the first connecting sleeve, a first tightening sleeve 510 is hinged at one end of each first hinging rod 509 far away from the first connecting sleeve 508, and the first tightening sleeve 510 is tightened at a corresponding position of the supporting rod 507; a plurality of second hinge rods 512 are uniformly hinged on the second connecting sleeve 511 along the circumferential direction thereof, and a second tightening sleeve 513 is hinged at one end of each second hinge rod 512 far away from the second connecting sleeve 511, and the second tightening sleeve 513 is tightened at a corresponding position of the supporting rod 507. The working principle of the embodiment is as follows: by driving the first shaft lever 502 to rotate, all the supporting rods 507 rotate along with the first shaft lever, so that the film wire 800 is wound on the supporting rods; after the winding is completed, the rotation of the first shaft lever 502 is stopped, the second shaft lever 503 is pushed to move in the direction approaching to the first shaft lever 502, so that all the support rods 507 are contracted towards the first shaft lever 502, and the membrane wires 800 are loosened from the support rods 507, and the membrane wires 800 are manually taken down. In this embodiment, film reels with different radial lengths may be wound, specifically, the positions of the first connecting sleeve 508 and the second connecting sleeve 511 on the first shaft 502 and the second shaft 503 are respectively adjusted, so that the vertical distance between the support rod 507 and the first shaft 502 is changed, the radial length of winding is changed, and the purpose of winding film reels with different radial lengths is achieved.

As a preferred embodiment of the present invention, as shown in fig. 16 to 24, the forced air drying mechanism 600 includes a plurality of film wire 800 air drying groups arranged side by side in an air drying chamber, wherein each group of film wire 800 air drying groups includes a plurality of film wire air drying racks 700, the film wire air drying racks 700 are mounted on the base 601 at intervals along the length direction of the base 601, and the upper and lower ends of the film wire air drying racks 700 are respectively communicated with the upper air distribution pipe 603 and the lower air distribution pipe 602, and the upper air distribution pipes 603 and the lower air distribution pipes 602 of all the forced air drying mechanisms 600 are uniformly communicated with an air distribution manifold. The working principle of the embodiment is as follows: the membrane tows 1000 of this embodiment are hung on each membrane silk airing rack 700, and then wind used for air drying enters the membrane silk airing rack 700 through the upper air distribution pipe 603 and the lower air distribution pipe 602 respectively through the upper end and the lower end of each membrane silk airing rack 700, and are blown on the membrane tows 1000, so that the membrane tows 1000 are aired. In order to control the membrane tows 1000 to be dried under the preset humidity, the embodiment can humidify the wind used for air drying, thereby being convenient and quick and achieving the purpose of improving the efficiency.

As a preferred embodiment of the present invention, as shown in fig. 18 to 19, the film wire hanger 700 comprises an upper hole pipe 702 and a lower hole pipe 701 which are disposed opposite to each other, wherein the close ends of the upper hole pipe 702 and the lower hole pipe 701 are connected by a hard spring 703, wind power torsion driving members 705 are respectively installed at the far ends of the upper hole pipe 702 and the lower hole pipe 701, and the upper hole pipe 702 and the lower hole pipe 701 are respectively communicated with the upper air distribution pipe 603 and the lower air distribution pipe 602 by two wind power torsion driving members 705. In this embodiment, at least one set of hanging arms 704 is configured on the upper perforated pipe 702, and at least one set of hanging arms 704 is also configured on the lower perforated pipe 701. Each group of hanging arms 704 comprises a plurality of hanging arms 704 uniformly arranged along the circumference of the upper hole pipe 702 or the lower hole pipe 701, each hanging arm 704 extends outwards along the radial direction of the upper hole pipe 702 or the lower hole pipe 701, the buckling pieces 900 are respectively pressed on the upper end and the lower end of the film wire bundle 1000, and the buckling pieces 900 are assembled on the corresponding hanging arms 704. Specifically, as shown in fig. 22-24, the fastener 900 includes two oppositely disposed fastening plates 901, each of the two fastening plates 901 having a buckle 903 and a grommet 904 configured at each end thereof, such that when the buckle 903 is fitted into the corresponding grommet 904, the film strand 1000 located between the two fastening plates 901 is pressed therein. In this embodiment, a limit bar 902 is respectively configured at one end of the two buckling plates 901 far away from each other, and the limit bar 902 extends along the length direction of the buckling plates 901. The hanging arm 704 of this embodiment includes two oppositely arranged arm bodies 7041, a clamping gap is formed between the two arm bodies 7041, each arm body 7041 extends outwards along the radial direction of the upper hole pipe 702 or the lower hole pipe 701, a limiting groove 7042 is formed at one end of the two arm bodies 7041, which is close to each other, and the limiting groove 7042 extends along the length direction of the arm body 7041. The fastener 900 of the embodiment is assembled in the clamping gap, and the limit strips 902 of the fastener 900 are assembled in the limit grooves 7042, so that the fasteners 900 at the upper end and the lower end of the film tow 1000 are respectively assembled on the corresponding hanging arms 704, and a plurality of film tows 1000 can be assembled between each pair of corresponding hanging arms 704. When the wind power is adjusted intermittently, the buckling pieces 900 at the upper end and the lower end of the membrane tow 1000 are respectively assembled on the hanging arms 704 on the upper hole pipe 702 and the lower hole pipe 701, so that when the wind power is adjusted intermittently and is high, the wind power is twisted by a certain angle through the upper hole pipe 702 and/or the lower hole pipe 701, and further the membrane tow 1000 is twisted, a part of wind is blown out through the upper hole pipe 702, the lower hole pipe 701 and the hard spring 703, and the membrane tow 1000 twisted by a certain angle is blown, so that the membrane tow 800 in the membrane tow 1000 is fully air-dried; at the same time, the hard spring 703 is also twisted to a certain extent, so that the hard spring 703 is twisted to store energy, and when the wind force is reduced, the hard spring 703 drives the upper hole pipe 702 and the lower hole pipe 701 to return. In this embodiment, the fasteners 900 at the upper and lower ends of the membrane tow 1000 may be assembled with two aligned hanging arms 704 on the upper perforated pipe 702 or with two aligned hanging arms 704 on the lower perforated pipe 701, so as to accommodate batch air drying of shorter membrane tows 1000. In this embodiment, the fastening pieces 900 at the upper and lower ends of the membrane tow 1000 may be assembled on two diagonally corresponding hanging arms 704, so that the membrane tow 1000 is mounted between the upper hole pipe 702 or the lower hole pipe 701 or between the upper hole pipe 702 and the lower hole pipe 701 in an inclined manner, so that on one hand, the contact time between the membrane tow 1000 and the wind used for air drying is increased, and on the other hand, the longer air drying operation of the membrane tow 1000 is adapted.

As a preferred embodiment of the present invention, as shown in fig. 20-21, a wind powered torsion driver 705 includes a mounting plate 7051 and a mounting shroud 7054. The mounting plate 7051 is formed at the end of the upper hole pipe 702 or the lower hole pipe 701, the vent holes 7053 are fully distributed at positions of the mounting plate 7051 corresponding to the upper hole pipe 702 or the lower hole pipe 701, and a plurality of swirl blades 7052 are formed on an end surface of the mounting plate 7051, which is far from the hard spring 703. The assembly disk 7051 of the present embodiment is movably assembled in the assembly housing 7054, and the assembly housing 7054 communicates with the upper air distribution duct 603 or the lower air distribution duct 602 through the air guide duct 7055. The working principle of the embodiment is as follows: when the wind power is within a predetermined range, the wind power cannot drive the upper hole pipe 702 or the lower hole pipe 701 to twist a certain angle by driving the swirl blades 7052, so that the wind used for air drying enters into the upper hole pipe 702 and/or the lower hole pipe 701 through the ventilation holes 7053 on the assembly cover 7054 and the assembly disk 7051, and then is blown onto the membrane tow 1000 through the upper hole pipe 702 and/or the lower hole pipe 701. When wind force suddenly increases, a part of energy drives the upper hole pipe 702 or the lower hole pipe 701 to twist a certain angle by driving the rotational flow blades 7052, so that the upper hole pipe 702 and/or the lower hole pipe 701 twist a certain angle, and a part of energy drives the upper hole pipe 702 and/or the lower hole pipe 701 to move by the assembly disk 7051 and compresses the hard spring 703, so that the membrane tows 1000 on the upper hole pipe 702 and/or the lower hole pipe 701 are vertically displaced (vertically dithered), and a third part of wind energy is blown out through the upper hole pipe 702 and the lower hole pipe 701 and blows the twisted and dithered membrane tows 1000, thereby achieving the purpose of full and efficient air drying. The wind power of the upper wind distribution pipe 603 and the lower wind distribution pipe 602 can be alternately improved, so that the two wind power torsion driving pieces 705 alternately drive the upper hole pipe 702 and the lower hole pipe 701 to twist and shake, and further the air drying of the membrane tows 1000 in a wind sweeping mode by the wind discharged by the upper hole pipe 702 and the lower hole pipe 701 is realized, and the air drying efficiency of the membrane tows 1000 can be further improved.

s1, stirring a mixture of main raw materials including polyvinylidene fluoride, polyvinylpyrrolidone and N, N-dimethylacetamide in a defoaming type filtering reaction kettle 100, wherein the pressure of the defoaming type filtering reaction kettle 100 is 0.4MPa, the temperature is 50 ℃, and after stirring for a period of time, vacuumizing the defoaming type filtering reaction kettle 100, and centrifuging to foam;

s2, forming film-forming liquid after stirring, discharging the film-forming liquid out of the defoaming type filtering reaction kettle 100, and filtering impurities in the film-forming liquid by the defoaming type filtering reaction kettle 100 in the discharging process;

s3, feeding the film forming liquid into a spinning machine 200, and producing film yarns 800;

s4, adjusting the adjustable filament arrangement mechanism 300, adjusting the drying process of the membrane filament 800, and enabling the membrane filament 800 to enter the adjustable filament arrangement mechanism 300 and fully contact with the solution in the adjustable filament arrangement mechanism 300 within a preset time period;

s5, the film wire 800 leaves the adjustable wire arranging mechanism 300 and is wound by the winding mechanism 500;

s6, transferring the coiled film wire 800 into the dipping bath 400, immersing for a preset time, and then taking out;

S7, transferring the membrane filaments 800 to a forced air drying mechanism 600 for batch air drying.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a hollow fiber milipore filter production line, includes spinning machine and dipping bath, its characterized in that: still include along the production processing direction of membrane silk and set gradually defoaming formula filtration reaction kettle, adjustable row silk mechanism, winding mechanism and forced air-dry mechanism, the spinning machine is located between defoaming formula filtration reaction kettle and the adjustable row silk mechanism, the dipping bath is located between winding mechanism and the forced air-dry mechanism.

2. A hollow fiber ultrafiltration membrane production line according to claim 1, wherein: the defoaming type filtering reaction kettle comprises a filtering type stirring unit arranged in the kettle body, a slide rail which extends vertically is arranged on an upper end cover of the kettle body, a linear motor is arranged on the slide rail, a driving motor is arranged on the linear motor, an output shaft of the driving motor is coaxially connected with a driving rod, and the lower end of the driving rod extends into the kettle body along the axis of the kettle body and is coaxially connected with the filtering type stirring unit; and a feeding connector and a pressure control connector are constructed on the upper end cover.

3. A hollow fiber ultrafiltration membrane production line according to claim 2, wherein: the filtering stirring unit comprises a filtering shell with a small diameter end facing downwards and overlapped with the axis of the kettle body, a discharge hopper matched with the filtering shell is arranged at the lower part of the kettle body, a guide vane overlapped with the axis of the filtering shell is arranged at the large diameter end of the filtering shell, the lower end of the driving rod is fixedly connected to the center of the guide vane, the outer edge of the guide vane is fixedly connected with the outer edge of the large diameter end of the filtering shell through a plurality of connecting plates, a flow passage is formed between the adjacent connecting plates, and a slag discharge valve is arranged at the lower end of the filtering shell.

4. A hollow fiber ultrafiltration membrane production line according to claim 1, wherein: the adjustable wire arranging mechanism comprises an adjustable film wire soaking unit, a wire discharging wheel set, a plurality of fixed wire arranging wheel sets and a plurality of movable wire arranging wheel sets which are arranged on a wire arranging water tank, wherein the adjustable film wire soaking unit and the wire discharging wheel sets are respectively positioned at two ends of the wire arranging water tank, each fixed wire arranging wheel set and each movable wire arranging wheel set are immersed in the wire arranging water tank and positioned between the adjustable film wire soaking unit and the wire discharging wheel sets, the fixed wire arranging wheel sets and the movable wire arranging wheel sets are sequentially and alternately arranged along the length direction of the wire arranging water tank, the movable wire arranging wheel sets are higher than the fixed wire arranging wheel sets, and the movable wire arranging wheel sets are in transmission connection with an active adjusting mechanism for adjusting the movable wire arranging wheel sets to move along the length direction of the wire arranging water tank.

5. The hollow fiber ultrafiltration membrane production line of claim 4, wherein: the adjustable membrane wire soaking unit comprises a connecting seat arranged on a water guide cover, the lower end of the water guide cover is arranged on a wire drainage trough, a plurality of water column wire soaking pieces are arranged on the connecting seat side by side, membrane wires penetrate through the corresponding water column wire soaking pieces from top to bottom and are communicated with corresponding distribution branch pipes on a distribution header pipe through fixed wire drainage wheel groups and movable wire drainage wheel groups, the distribution header pipe is connected with an outlet of a pressure water pump through a water outlet pipe, an inlet of the pressure water pump is communicated with the lower part of the wire drainage trough, and a drainage joint is constructed on the water outlet pipe.

6. The hollow fiber ultrafiltration membrane production line of claim 5, wherein: the water column wire soaking piece comprises a water outlet seat constructed on the connecting seat, a plurality of water outlet holes penetrating through the water outlet seat along the vertical direction are uniformly formed in the water outlet seat along the circumferential direction of the water outlet seat, a mounting hole is constructed in the middle of the water outlet seat, an inner water jacket is mounted at the mounting hole, the axial two ends of the inner water jacket extend out of the upper end and the lower end of the water outlet seat respectively, an outer water jacket overlapped with the axis of the inner water jacket is constructed at the outer edge of the water outlet seat, the axial two ends of the outer water jacket extend out of the upper end and the lower end of the water outlet seat respectively, the two ends of the inner water jacket are positioned in the outer water jacket, and a water column forming cavity is formed between the inner water jacket and the outer water jacket; the middle part of the water outlet seat is provided with a water distribution cavity, each water outlet hole is divided into two parts by the water distribution cavity, a water supply channel is arranged on the connecting seat and at the position corresponding to the water distribution cavity, and the water supply channel is communicated with the corresponding distribution branch pipe.

7. A hollow fiber ultrafiltration membrane production line according to claim 1, wherein: the forced air drying mechanism comprises a plurality of film wire air drying groups which are arranged in an air drying chamber side by side, each film wire air drying group comprises a plurality of film wire air drying racks which are arranged on a base, the upper ends and the lower ends of the film wire air drying racks are respectively communicated with an upper air distribution pipe and a lower air distribution pipe, and the upper air distribution pipes and the lower air distribution pipes of all the forced air drying mechanisms are communicated with an even air distribution main pipe.

8. The hollow fiber ultrafiltration membrane production line of claim 7, wherein: the film wire airing rack comprises an upper hole pipe and a lower hole pipe which are oppositely arranged, wherein the mutually close ends of the upper hole pipe and the lower hole pipe are connected through a hard spring, wind power torsion driving parts are respectively arranged at the mutually far ends of the upper hole pipe and the lower hole pipe, and the upper hole pipe and the lower hole pipe are respectively communicated with an upper air distribution pipe and a lower air distribution pipe through the two wind power torsion driving parts; at least one group of hanging arm groups are constructed on the upper hole pipe, at least one group of hanging arm groups are also constructed on the lower hole pipe, each hanging arm group comprises a plurality of hanging arms which are uniformly arranged along the circumference of the upper hole pipe or the lower hole pipe, each hanging arm extends outwards along the radial direction of the upper hole pipe or the lower hole pipe, buckling pieces are respectively pressed at the upper end and the lower end of the membrane silk bundle, and each buckling piece is assembled on the corresponding hanging arm.

9. The hollow fiber ultrafiltration membrane production line of claim 8, wherein: the wind power torsion driving piece comprises an assembly disc which is constructed at the end part of the upper hole pipe or the lower hole pipe, ventilation holes are distributed at the position of the assembly disc corresponding to the upper hole pipe or the lower hole pipe, and a plurality of swirl blades are constructed on the end surface of one end of the assembly disc far away from the hard spring; the assembly disc is movably assembled in the assembly cover, and the assembly cover is communicated with the upper air distribution pipe or the lower air distribution pipe through the air guide pipe.

10. A method for producing a hollow fiber ultrafiltration membrane using the production line for a hollow fiber ultrafiltration membrane according to any one of claims 1 to 9, comprising the steps of: