CN117342652A - Nanofiltration membrane component for extracting lithium from salt lake and preparation device thereof - Google Patents

Abstract

The invention discloses a nanofiltration membrane component for extracting lithium from a salt lake and a preparation device thereof, and the nanofiltration membrane component comprises a filter membrane main body, a coiled pipe and a detection component, wherein the detection component is used for detecting the use state of the filter membrane main body; the two ends of the coiled pipe are respectively provided with a water outlet end cover and a water inlet end cover, a guide pipe is fixedly arranged on the water inlet end cover, the detection assembly comprises a detection pipe which is arranged on the guide pipe in a sliding sealing manner, an observation column is arranged on the detection pipe, and the water inlet end cover is provided with a detection assembly and a buffer assembly; when the filter capacity of the filter membrane main body is reduced, the pressure in the coil pipe is increased, the buffer assembly is pushed to drive the observation column to slide, and the filter capacity of the filter membrane main body can be fed back to the outside through the observation column, so that the use degree of the filter membrane main body is conveniently and externally judged, the filter membrane main body is accurately replaced after being used to a certain degree, excessive use or incomplete use of the filter membrane main body is avoided, and the use effect of the filter membrane main body is reduced.

Description

Nanofiltration membrane component for extracting lithium from salt lake and preparation device thereof

Technical Field

The invention relates to the technical field of nanofiltration membranes, in particular to a nanofiltration membrane component for extracting lithium from a salt lake and a preparation device thereof.

Background

In the context of new energy development, the application and development of "lithium" resources has become particularly important. Lithium is currently becoming a valuable resource in our country as an energy metal. With the continuous expansion of new energy industries, the demand for lithium is also continuously increasing, and thus, the exploitation of lithium resources is becoming particularly important. At present, the method for extracting lithium from salt lake brine is mainly adopted in China, and the technology of a membrane method is widely applied to the field of extracting lithium from salt lake brine through continuous development of the technology. The nanofiltration technology is taken as an important component of the membrane technology, is widely applied to the fields of sea water desalination, wastewater treatment and the like after rapid development, and is also applied to the process of extracting lithium from salt lake brine nowadays.

The nanofiltration membrane mainly has the working principle that a certain pressure difference is applied to two sides of the membrane in a membrane separation process taking the pressure difference as the driving force, so that a part of solvent and components smaller than the pore diameter of the membrane can permeate the membrane, particles, macromolecules, salt and the like larger than the pore diameter of the membrane are trapped by the membrane to realize the separation, and compared with the traditional precipitation method and other methods, the nanofiltration membrane has the advantages of simple process flow, small occupied area, short production period, no three waste discharge, environmental protection, no dangerous procedures such as high pressure, inflammability, explosiveness and the like, and the nanofiltration membrane can be used for extracting lithium from salt lakes and has more application scenes in other industries.

The prior art has the following defects: when utilizing nanofiltration membrane to carry out salt lake and carry out lithium, because of the high valence metal ion in the salt lake brine is more, the filter membrane is after being polluted, needs to change the clearance to nanofiltration membrane to when changing the clearance, be difficult to judge the degree of use of nanofiltration membrane, lead to appearing frequently changing nanofiltration membrane and influence work efficiency, perhaps appear nanofiltration membrane and use excessively, influence the problem of lithium efficiency.

Disclosure of Invention

The invention aims to provide a nanofiltration membrane component for extracting lithium from a salt lake and a preparation device thereof, so as to solve the defects in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

the nanofiltration membrane component for extracting lithium from the salt lake comprises a filter membrane main body, a coil pipe and a detection component, wherein the detection component is used for detecting the use state of the filter membrane main body;

the two ends of the coiled pipe are respectively provided with a water outlet end cover and a water inlet end cover, the water inlet end cover is fixedly provided with a guide pipe, the detection assembly comprises a detection pipe which is arranged on the guide pipe in a sliding sealing manner, and the detection pipe is provided with an observation column;

the device also comprises a buffer component which is used for buffering water flow entering the water inlet end cover, and when the filtering performance of the filter membrane main body is reduced, the detection tube is driven to slide with the observation column.

In a further preferable scheme in the embodiment of the invention, the buffer assembly comprises a buffer plate, a sliding rod is fixedly arranged on the buffer plate, the sliding rod is in sliding sealing connection with the guide tube, and the sliding rod is in sliding connection with the detection tube.

The preparation device of the nanofiltration membrane component for extracting lithium from the salt lake is used for preparing the nanofiltration membrane component for extracting lithium from the salt lake, and comprises a base and a clamping component, wherein the clamping component is used for clamping a coiled pipe;

the material taking assembly is used for taking down the coiled pipe;

the linkage assembly is used for enabling the clamping assembly to clamp the coiled pipe and driving the coiled pipe to rotate, and the material taking assembly is used for taking down the coiled pipe after the rolling of the filter membrane main body is completed;

the clamping assembly comprises a rotating disc, a plurality of arc-shaped holes are formed in the rotating disc, active clamping jaws are arranged on the arc-shaped holes in a sliding mode, an active rotating seat is arranged on the base in a rotating mode, a plurality of sliding grooves are formed in the active rotating seat, the sliding grooves correspond to the active clamping jaws one to one mode, and the active clamping jaws are arranged in the sliding grooves in a sliding mode.

In a further preferable scheme of the embodiment of the invention, a plurality of fixing frames are slidably arranged on the driving swivel base, friction plates are fixedly arranged on the fixing frames, and the friction plates are in one-to-one correspondence with and butt against the driving clamping jaws.

In a further preferable scheme of the embodiment of the invention, a plurality of second springs are arranged between the fixing frame and the active swivel base, and two ends of the second springs are fixedly connected with the fixing frame and the active swivel base respectively.

In a further preferable scheme of the embodiment of the invention, the clamping assembly further comprises a driven swivel mount rotatably arranged on the base, a plurality of driven clamping jaws are slidably arranged on the driven swivel mount, and the driven clamping jaws correspond to the driving clamping jaws one by one;

a plurality of all be provided with first spring between driven clamping jaw and the driven swivel mount, just the both ends of first spring are respectively with driven clamping jaw and driven swivel mount fixed connection.

In a further preferable scheme of the embodiment of the invention, the material taking assembly comprises a lifting table which is arranged on the base in a sliding way, two supporting blocks are arranged on the lifting table and are respectively matched with the driving clamping jaw and the driven clamping jaw, two connecting rods are rotatably arranged on the lifting table, sliding seats are rotatably arranged on the two connecting rods, and the sliding blocks are in sliding connection with the base;

a plurality of third springs are arranged between the lifting table and the base, and two ends of each third spring are fixedly connected with the lifting table and the base respectively.

In a further preferable scheme of the embodiment of the invention, a rotating rod is rotatably arranged on the base, two reciprocating grooves are arranged on the rotating rod, the two reciprocating grooves are in one-to-one correspondence with the two sliding seats, and the sliding seats are arranged in the reciprocating grooves;

the reciprocating groove comprises an arc-shaped groove and a straight groove, and two ends of the arc-shaped groove are communicated with two ends of the straight groove.

In a further preferable scheme of the embodiment of the invention, the material taking assembly comprises a first gear and a second gear which are rotatably arranged on the base, the first gear and the second gear are in meshed transmission, a first belt wheel is fixedly arranged on the second gear, a second belt wheel is fixedly arranged on the rotating rod, and a belt is arranged on the first belt wheel and the second belt wheel in transmission.

In a further preferable scheme in the embodiment of the invention, a driving motor is fixedly arranged on the base, and a motor shaft of the driving motor is fixedly connected with the rotating disc;

the motor shaft of the driving motor is fixedly provided with a fixed ring, the fixed ring is rotatably provided with a plurality of pawls, torsion springs are arranged between the pawls and the fixed ring, the first gear is fixedly provided with a ratchet ring, and the pawls are connected with the ratchet ring in a clamping mode.

In the technical scheme, the nanofiltration membrane component for extracting lithium from the salt lake and the preparation device thereof have the beneficial effects that:

1. in this embodiment, through setting up detection component and buffer assembly on the end cover that intakes, make after the filter membrane main part uses for a long time, its filtration capacity decline, the inside pressure of reelpipe increases this moment, promote buffer assembly, make buffer assembly drive observe the post and slide, can pass through the filtration capacity of filter membrane main part and observe the post and feed back to outside, the degree of use of filter membrane main part is convenient for outside judgement, make the filter membrane main part accurately change after using certain degree, avoid the filter membrane main part to appear excessively using or incompletely using, result in influencing the result of use reduction of filter membrane main part, influence and carry lithium efficiency.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the disclosed technology.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of the overall structure of a nanofiltration membrane according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a nanofiltration membrane according to an embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2 provided in accordance with an embodiment of the present invention;

FIG. 4 is a schematic diagram of a detecting assembly and a buffering assembly according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of the overall structure of a winding device according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a winding apparatus according to an embodiment of the present invention;

FIG. 7 is a schematic view of a rotating disc structure according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of an internal structure of an active swivel base according to an embodiment of the invention;

FIG. 9 is a cross-sectional view of an active swivel mount according to an embodiment of the invention;

fig. 10 is a schematic structural diagram of a fixing frame according to an embodiment of the present invention;

FIG. 11 is a schematic view of a driven swivel base structure according to an embodiment of the invention;

FIG. 12 is a schematic view of a first gear structure according to an embodiment of the present invention;

FIG. 13 is a schematic view of a linkage assembly according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a material taking assembly according to an embodiment of the present invention.

Reference numerals illustrate:

1. a filter membrane body; 11. a coiled pipe; 12. a water outlet end cover; 2. a water inlet end cover; 21. a guide tube; 22. a detection tube; 23. observing the column; 3. a buffer plate; 31. a slide bar; 4. a base; 41. a driving motor; 5. a rotating disc; 51. a driving clamping jaw; 52. an arc-shaped hole; 53. a driven swivel mount; 54. a driven jaw; 55. a first spring; 6. actively rotating; 61. a sliding groove; 62. a fixing frame; 63. a friction plate; 64. a second spring; 7. a first gear; 71. ratchet ring; 72. a fixing ring; 73. a pawl; 74. a second gear; 75. a first pulley; 76. a second pulley; 77. a belt; 78. a rotating rod; 79. a reciprocating groove; 9. a lifting table; 91. a support block; 92. a connecting rod; 93. a sliding seat; 94. and a third spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Referring to fig. 1-14, a nanofiltration membrane component for extracting lithium from a salt lake comprises a filtration membrane main body 1, a coil pipe 11 and a detection component, wherein the detection component is used for detecting the use state of the filtration membrane main body 1; the two ends of the coiled pipe 11 are respectively provided with a water outlet end cover 12 and a water inlet end cover 2, a guide pipe 21 is fixedly arranged on the water inlet end cover 2, the detection assembly comprises a detection pipe 22 which is arranged on the guide pipe 21 in a sliding sealing manner, and an observation column 23 is arranged on the detection pipe 22; the filter membrane main body 1 is provided with a detection component and a buffer component, wherein the detection component and the buffer component are arranged on the water inlet end cover 2, so that after the filter membrane main body 1 is used for a long time, the filter capacity of the filter membrane main body 1 is reduced, the pressure in the coil 11 is increased at the moment, the buffer component is pushed, the buffer component drives the observation column 23 to slide, and the filter capacity of the filter membrane main body 1 can be fed back to the outside through the observation column 23, so that the use degree of the filter membrane main body 1 is conveniently judged externally, the filter membrane main body 1 is accurately replaced after being used to a certain degree, and excessive use or incomplete use of the filter membrane main body 1 is avoided, so that the use effect of the filter membrane main body 1 is reduced, and the lithium extraction efficiency is influenced; specifically, when the water outlet end cover 12 and the water inlet end cover 2 are installed, the water outlet end cover is sealed after being connected by screw threads in the prior art, and the operation mode and the working principle of the water outlet end cover are common knowledge of the person skilled in the art, and are not repeated.

Specifically, the buffer assembly includes the buffer plate 3, fixedly set up the slide bar 31 on the buffer plate 3, slide bar 31 and guide tube 21 sliding seal connect, slide bar 31 and detection tube 22 sliding connection, in this embodiment, when the filter performance of the filter membrane main body 1 is reduced, the pressure in the coil 11 increases, make the buffer plate 3 receive the pressure, and overcome the frictional force between guide tube 21 and the detection tube 22, drive slide bar 31 and detection tube 22 to slide at the same time, the detection tube 22 will drive the observation column 23 to slide when sliding, make the observation column 23 retract into guide tube 21, can judge the degree of use of the filter membrane main body 1 through looking at the length of the observation column 23 at this moment, change and clear up, and, when taking off the water inlet end cover 2, can take out the buffer plate 3 through guide tube 21, detection tube 22 and slide bar 31, the filter membrane can scrape the impurity on the inner wall of the coil 11 in the course of taking out, the difficulty of clearing up the inner wall of the coil 11, promote and examine and change the efficiency along with the main body 1; specifically, the friction force between the guide tube 21 and the detecting tube 22 is greater than the friction force between the slide bar 31 and the detecting tube 22, so that the detecting tube 22 is driven to slide only when the slide bar 31 slides to collide with the detecting tube 22.

The preparation device of the nanofiltration membrane component for extracting lithium from the salt lake is used for preparing the nanofiltration membrane component for extracting lithium from the salt lake, and comprises a base 4 and a clamping component, wherein the clamping component is used for clamping a coiled pipe 11;

a take-out assembly for taking down the coil 11;

the linkage assembly is used for enabling the clamping assembly to clamp the coiled pipe 11 and driving the coiled pipe 11 to rotate, and the material taking assembly is used for taking down the coiled pipe 11 after the rolling of the filter membrane main body 1 is completed;

the clamping assembly comprises a rotating disc 5, a plurality of arc-shaped holes 52 are formed in the rotating disc 5, active clamping jaws 51 are slidably arranged in the arc-shaped holes 52, an active rotary seat 6 is rotatably arranged on a base 4, a plurality of sliding grooves 61 are formed in the active rotary seat 6, the sliding grooves 61 are in one-to-one correspondence with the active clamping jaws 51, the active clamping jaws 51 are slidably arranged in the sliding grooves 61, the clamping assembly arranged on the base 4 clamps the coiled pipe 11 and drives the coiled pipe 11 to rotate, the filter membrane main body 1 is coiled on the coiled pipe 11, the clamping assembly is loosened through the linkage assembly, the material taking assembly and the clamping assembly are matched to take off and place the coiled pipe 11 coiled with the filter membrane main body 1, an adhesive used in the coiling process can be solidified on the material taking assembly, the next coiling work is not influenced, and the efficiency of coiling the filter membrane main body 1 on the coiled pipe 11 is improved; further, through setting up arc hole 52 on rolling disc 5, set up sliding tray 61 on initiative swivel mount 6 to set up initiative clamping jaw 51 in arc hole 52 and sliding tray 61, when rolling disc 5 rotates, can slide along sliding tray 61 through the cooperation of arc hole 52 and sliding tray 61, so as to realize the centre gripping of main clamping jaw to reelpipe 11, and after the centre gripping, can drive initiative swivel mount 6 through initiative clamping jaw 51 and rotate, so as to accomplish and still can carry it to rotate when carrying out the centre gripping to reelpipe 11, make to reelpipe 11 fix and rotate more conveniently, promote efficiency.

Specifically, a plurality of fixing frames 62 are slidably arranged on the driving swivel base 6, friction plates 63 are fixedly arranged on the plurality of fixing frames 62, and the plurality of friction plates 63 are in one-to-one correspondence with and abutted against the plurality of driving clamping jaws 51; a plurality of second springs 64 are arranged between the fixing frame 62 and the active swivel seat 6, two ends of each second spring 64 are fixedly connected with the fixing frame 62 and the active swivel seat 6 respectively, in this embodiment, friction force between a friction plate 63 on the fixing frame 62 and the base 4 enables the active swivel seat 6 not to be rotated, so that when the rotating disc 5 rotates, the arc-shaped holes 52 and the sliding grooves 61 on the active swivel seat 6 can be utilized to enable the active clamping jaw 51 to slide towards the central position of the active swivel seat 6 so as to achieve better clamping of the coiled tube 11, when the coiled tube 11 is clamped, the active clamping jaw 51 is abutted with the fixing frame 62, the fixing frame 62 slides and compresses the second springs 64, at the moment, the friction plate 63 is separated from the base 4, then the rotating disc 5 continuously rotates, and enables the active clamping jaw 51 to clamp and rotate the coiled tube 11 simultaneously, namely, when the rotating disc 5 rotates, the coiled tube 11 can be clamped first, and then directly drives the coiled tube 11 to rotate, so that when the coiled tube 11 is fixed and rotated, the coiled tube 11 is more efficient.

Further, the clamping assembly further comprises a driven swivel base 53 rotatably arranged on the base 4, a plurality of driven clamping jaws 54 are slidably arranged on the driven swivel base 53, and the driven clamping jaws 54 are in one-to-one correspondence with the driving clamping jaws 51; a first spring 55 is arranged between each of the plurality of driven clamping jaws 54 and the driven swivel mount 53, and two ends of the first spring 55 are fixedly connected with the driven clamping jaw 54 and the driven swivel mount 53 respectively.

In a further provided embodiment of the invention, the material taking assembly comprises a lifting platform 9 arranged on the base 4 in a sliding manner, two supporting blocks 91 are arranged on the lifting platform 9, the two supporting blocks 91 are respectively matched with the driving clamping jaw 51 and the driven clamping jaw 54, two connecting rods 92 are rotatably arranged on the lifting platform 9, sliding seats 93 are rotatably arranged on the two connecting rods 92, and the sliding blocks are slidably connected with the base 4; a plurality of third springs 94 are arranged between the lifting table 9 and the base 4, two ends of each third spring 94 are fixedly connected with the lifting table 9 and the base 4 respectively, in this embodiment, when two sliding seats 93 slide in opposite directions, the lifting table 9 is lifted through a connecting rod 92, the third springs 94 are lengthened, when the driving clamping jaw 51 releases the clamping of the coiled tube 11, one side of the coiled tube 11 can be received by the supporting block 91 on one side, the supporting block 91 on the other side supports the driven clamping jaw 54 to slide, the first springs 55 are compressed, the clamping of the coiled tube 11 is released by the driven clamping jaw 54, the other side of the coiled tube 11 is received by the supporting block 91, the filter membrane main body 1 can be taken down more stably and safely, the risk of manual removal is avoided, meanwhile, the adhesive curing position is provided for the filter membrane main body 1 which is just wound, and the quality of the filter membrane main body 1 is improved.

In the embodiment provided by the invention, the rotating rod 78 is rotatably arranged on the base 4, the rotating rod 78 is provided with two reciprocating grooves 79, the two reciprocating grooves 79 are in one-to-one correspondence with the two sliding seats 93, and the sliding seats 93 are arranged in the reciprocating grooves 79; the reciprocating groove 79 comprises an arc groove and a straight groove, two ends of the arc groove are communicated with two ends of the straight groove, the rotating rod 78 rotates, two sliding seats 93 slide in opposite directions under the action of the arc groove, the lifting table 9 is lifted through the connecting rod 92, the two sides of the coiled pipe 11 are supported by the supporting block 91, after the coiled pipe 11 is connected, the sliding seats 93 slide to the end points of the arc groove to enter the straight groove, and the sliding seats slide and reset along the straight groove under the action of gravity of the lifting table 9.

Specifically, the material taking assembly comprises a first gear 7 and a second gear 74 which are rotatably arranged on the base 4, the first gear 7 is meshed with the second gear 74 for transmission, a first belt pulley 75 is fixedly arranged on the second gear 74, a second belt pulley 76 is fixedly arranged on the rotating rod 78, a belt 77 is arranged on the first belt pulley 75 and the second belt pulley 76 for transmission, and in the embodiment, when the first gear 7 rotates, the first gear 7 rotates through the transmission of the second gear 74, the first belt pulley 75, the belt 77 and the second belt pulley 76, so that the rotating rod 78 rotates, and the material taking assembly can take down the coiled pipe 11 after coiling.

In the scheme provided by the invention, a driving motor 41 is fixedly arranged on the base 4, and a motor shaft of the driving motor 41 is fixedly connected with the rotating disc 5; a fixed ring 72 is fixedly arranged on a motor shaft of the driving motor 41, a plurality of pawls 73 are rotatably arranged on the fixed ring 72, torsion springs are arranged between the pawls 73 and the fixed ring 72, a ratchet ring 71 is fixedly arranged on the first gear 7, the pawls 73 are in clamping connection with the ratchet ring 71, when the driving motor 41 is started to drive the driving clamping jaw 51 to rotate the winding pipe 11 through the rotating disc 5, the fixed ring 72 drives the pawls 73 to rotate under the action of the torsion springs between the pawls 73 and the fixed ring 72, the pawls 73 cannot drive the ratchet ring 71 to rotate, and therefore the first gear 7 cannot rotate, and therefore the effect of a material taking assembly cannot be caused when the driving clamping jaw 51 drives the winding pipe 11 to rotate; when the driving motor 41 reversely rotates, the fixed ring 72 is driven to rotate, the pawl 73 drives the ratchet ring 71 and the first gear 7 to rotate, the first gear 7 drives the rotating rod 78 to rotate through the transmission of the second gear 74, the first belt pulley 75, the belt 77 and the second belt pulley 76, so that the lifting table 9 ascends, and the coiled pipe 11 which is coiled on the filter membrane main body 1 is taken down through the supporting block 91, so that the next coiling work can be carried out more quickly.

Working principle: when lithium extraction and filtration work is performed, brine enters the winding pipe 11 through the water inlet end cover 2, at the moment, brine enters the winding pipe 11, the pressure of brine drives the buffer plate 3, the buffer plate 3 slides along the sliding rod 31 until the sliding rod 31 contacts with the end point of the detection pipe 22, at the moment, the brine is filtered by the filter membrane main body 1 through the hole on the winding pipe 11 under the action of the buffer plate 3, filtered lithium ions flow out through the filter membrane main body 1, unfiltered high-valence ions are left to the position of the water outlet end cover 12 through the hole on the buffer plate 3 for discharging, when the filtration performance of the filter membrane main body 1 is reduced, the pressure in the winding pipe 11 is increased, the buffer plate 3 is stressed, the friction force between the detection pipe 22 and the guide pipe 21 is overcome, meanwhile, the sliding rod 31 and the detection pipe 22 are driven to slide, the observation column 23 is driven to slide when the detection pipe 22 slides, the observation column 23 is retracted into the guide pipe 21, at the moment, the use degree of the filter membrane main body 1 can be judged by checking the length of the observation column 23, and replacement and cleaning are performed; when the filter membrane main body 1 is cleaned, the water inlet end cover 2 and the water outlet end cover 12 are removed, when the water inlet end cover 2 is removed, the buffer plate 3 can be taken out through the guide tube 21, the detection tube 22 and the slide rod 31, and impurities on the inner wall of the coil tube 11 can be scraped off by the buffer plate 3 in the taking-out process, so that the difficulty of cleaning the inner wall of the coil tube 11 is reduced, and then the filter membrane main body 1 is cleaned; when reinstallation is performed after cleaning, sliding rod 31 is slid into detection tube 22 and against detection tube 22 to slide detection tube 22 within guide tube 21, so that observation post 23 extends out of guide tube 21 for subsequent use, and sliding rod 31 is retracted into detection tube 22 to facilitate subsequent installation of water inlet end cap 2 onto reel tube 11;

when the filter membrane main body 1 is wound on the winding tube 11, the driven clamping jaw 54 is utilized to fix one end of the winding tube 11 in advance by utilizing the elasticity of the first spring 55, the other end is positioned between the two driving clamping jaws 51, then the winding tube 11 and the filter membrane main body 1 are coated with adhesive, one side of the filter membrane main body 1 is adhered to the winding tube 11, the driving motor 41 is started, the rotating disc 5 is driven to rotate by a motor shaft, at the moment, under the action of the second spring 64, the driving rotating seat 6 can not be rotated by the friction force between the friction plate 63 on the fixing frame 62 and the base 4, so that when the rotating disc 5 rotates, the driving clamping jaw 51 can slide towards the center position of the driving rotating seat 6 by utilizing the arc-shaped hole 52 and the sliding groove 61 on the driving rotating seat 6, the other end of the winding tube 11 is clamped, and when the winding tube 11 is clamped, the driving clamping jaw 51 is abutted with the fixing frame 62, the fixing frame 62 slides and compresses the second spring 64, at this time, the friction plate 63 is separated from the base 4, then the rotating disc 5 continues to rotate, and the driving clamping jaw 51 drives the driving rotary seat 6 to rotate while clamping and rotating the coiled tube 11, when the coiled tube 11 rotates, the filter membrane main body 1 can be wound on the coiled tube 11, when the coiled tube 11 rotates, the fixing ring 72 drives the pawl 73 to rotate due to the action of the torsion spring between the pawl 73 and the fixing ring 72, the pawl 73 does not drive the ratchet ring 71 to rotate, after the filter membrane main body 1 is wound, the driving motor 41 reversely rotates, the driving clamping jaw 51 slides along the arc-shaped groove to the outer side direction of the rotating disc 5 under the action of the friction force between the driving rotary seat 6 and the base 4, at this time, the fixing frame 62 loses the limit of the driving clamping jaw 51, under the reset action of the second spring 64, the friction plate 63 is in friction contact with the base 4, at this time, the driving swivel mount 6 stops rotating, and then the rotating disc 5 reversely rotates, so that the driving clamping jaw 51 slides and expands on the arc-shaped groove and the sliding groove 61, the clamping of the coil 11 is released, meanwhile, the driving motor 41 drives the fixed ring 72 to rotate when reversely rotating, the pawl 73 drives the ratchet ring 71 and the first gear 7 to rotate, the first gear 7 drives the rotating rod 78 to rotate through the transmission of the second gear 74, the first belt pulley 75, the belt 77 and the second belt pulley 76, the rotating rod 78 rotates, the two sliding seats 93 slide oppositely under the action of the arc-shaped groove while the rotating rod 78 rotates, the lifting table 9 is lifted upwards through the connecting rod 92, the third spring 94 stretches, in the lifting process, the driving clamping jaw 51 releases one side of the coil 11, meanwhile, the other side supporting block 91 pushes the driven clamping jaw 54 to compress the first spring 55, the driven clamping 54 slides and releases the clamping of the other side of the coil 11, namely, the two sides of the coil 11 can be supported through the supporting block 91, the coil 11 is connected through the coil 11, the sliding seat 93 slides to the end point of the arc-shaped groove, the motor 41 stops, the driving motor 41 slides down on the third sliding seat 94 and the reset spring 94 moves down along the reset spring 9, and then the lifting table 9 moves down, and then the lifting table moves down in a reciprocating manner, and the lifting table 9 is in a reciprocating manner, and then the lifting table is lifted down; at this time, the winding pipe 11 can be installed and a new winding operation is performed, and in the new winding operation process, the filter membrane main body 1 which is just wound is placed on the supporting block 91 of the lifting table 9, and the adhesive used in winding is cured.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

Claims (10)

1. The nanofiltration membrane component for extracting lithium from the salt lake comprises a filter membrane main body (1) and a coiled pipe (11), and is characterized by further comprising a detection component for detecting the use state of the filter membrane main body (1);

the two ends of the coiled pipe (11) are respectively provided with a water outlet end cover (12) and a water inlet end cover (2), a guide pipe (21) is fixedly arranged on the water inlet end cover (2), the detection assembly comprises a detection pipe (22) which is arranged on the guide pipe (21) in a sliding sealing manner, and an observation column (23) is arranged on the detection pipe (22);

the filter membrane further comprises a buffer assembly which is used for buffering water flow entering the water inlet end cover (2) and driving the detection tube (22) to slide with the observation column (23) when the filtering performance of the filter membrane main body (1) is reduced.

2. Nanofiltration membrane assembly for extracting lithium from salt lake according to claim 1, wherein the buffer assembly comprises a buffer plate (3), a sliding rod (31) is fixedly arranged on the buffer plate (3), the sliding rod (31) is in sliding sealing connection with a guide tube (21), and the sliding rod (31) is in sliding connection with a detection tube (22).

3. A device for preparing the nanofiltration membrane component for extracting lithium from a salt lake, which is used for preparing the nanofiltration membrane component for extracting lithium from a salt lake according to any one of claims 1-2, and is characterized by comprising a base (4) and a clamping component, wherein the clamping component is used for clamping a coiled pipe (11);

a material taking assembly for taking down the coiled pipe (11);

the linkage assembly is used for enabling the clamping assembly to clamp the coiled pipe (11) and driving the coiled pipe (11) to rotate, and after the filter membrane main body (1) is wound, the material taking assembly is used for taking down the coiled pipe (11) through the linkage assembly;

the clamping assembly comprises a rotating disc (5), a plurality of arc-shaped holes (52) are formed in the rotating disc (5), a plurality of driving clamping jaws (51) are arranged on the arc-shaped holes (52) in a sliding mode, a driving swivel base (6) is arranged on the base (4) in a rotating mode, a plurality of sliding grooves (61) are formed in the driving swivel base (6), the sliding grooves (61) correspond to the driving clamping jaws (51) one to one mode, and the driving clamping jaws (51) are arranged in the sliding grooves (61) in a sliding mode.

4. The preparation device of the nanofiltration membrane component for extracting lithium from the salt lake according to claim 3, wherein a plurality of fixing frames (62) are slidably arranged on the active rotary seat (6), friction plates (63) are fixedly arranged on the fixing frames (62), and the friction plates (63) are in one-to-one correspondence with the active clamping jaws (51) and are abutted.

5. The preparation device of the nanofiltration membrane component for extracting lithium from the salt lake according to claim 4, wherein a plurality of second springs (64) are arranged between the fixing frame (62) and the driving swivel base (6), and two ends of the second springs (64) are fixedly connected with the fixing frame (62) and the driving swivel base (6) respectively.

6. The preparation device of the nanofiltration membrane assembly for extracting lithium from the salt lake according to claim 4, wherein the clamping assembly further comprises a driven rotary seat (53) rotatably arranged on the base (4), a plurality of driven clamping jaws (54) are slidably arranged on the driven rotary seat (53), and the driven clamping jaws (54) are in one-to-one correspondence with the driving clamping jaws (51);

a plurality of driven clamping jaw (54) and driven swivel mount (53) between all be provided with first spring (55), just the both ends of first spring (55) are respectively with driven clamping jaw (54) and driven swivel mount (53) fixed connection.

7. The preparation device of the nanofiltration membrane component for extracting lithium from the salt lake according to claim 4, wherein the material taking component comprises a lifting table (9) which is arranged on a base (4) in a sliding manner, two supporting blocks (91) are arranged on the lifting table (9), the two supporting blocks (91) are respectively matched with a driving clamping jaw (51) and a driven clamping jaw (54), two connecting rods (92) are rotatably arranged on the lifting table (9), sliding seats (93) are rotatably arranged on the two connecting rods (92), and the sliding seats are slidably connected with the base (4);

a plurality of third springs (94) are arranged between the lifting table (9) and the base (4), and two ends of each third spring (94) are fixedly connected with the lifting table (9) and the base (4) respectively.

8. The preparation device of the nanofiltration membrane component for extracting lithium from the salt lake according to claim 7, wherein a rotating rod (78) is rotatably arranged on the base (4), two reciprocating grooves (79) are arranged on the rotating rod (78), the two reciprocating grooves (79) are in one-to-one correspondence with the two sliding seats (93), and the sliding seats (93) are arranged in the reciprocating grooves (79);

the reciprocating groove (79) comprises an arc-shaped groove and a straight groove, and two ends of the arc-shaped groove are communicated with two ends of the straight groove.

9. The preparation device of the nanofiltration membrane assembly for extracting lithium from the salt lake according to claim 8, wherein the material taking assembly comprises a first gear (7) and a second gear (74) which are rotatably arranged on a base (4), the first gear (7) and the second gear (74) are in meshed transmission, a first belt wheel (75) is fixedly arranged on the second gear (74), a second belt wheel (76) is fixedly arranged on the rotating rod (78), and a belt (77) is arranged on the first belt wheel (75) and the second belt wheel (76) in transmission.

10. The preparation device of the nanofiltration membrane component for extracting lithium from the salt lake according to claim 9, wherein a driving motor (41) is fixedly arranged on the base (4), and a motor shaft of the driving motor (41) is fixedly connected with the rotating disc (5);

the motor shaft of the driving motor (41) is fixedly provided with a fixed ring (72), the fixed ring (72) is rotatably provided with a plurality of pawls (73), torsion springs are arranged between the pawls (73) and the fixed ring (72), the first gear (7) is fixedly provided with a ratchet ring (71), and the pawls (73) are connected with the ratchet ring (71) in a clamping mode.