A dissolving liquid filtering device for producing lyocell fibers

Abstract

The invention discloses a dissolving liquid filtering device for lyocell fiber production, which relates to the technical field of filtering devices, and comprises a bottom shell and a feed bin, wherein a feeding assembly is arranged in the feed bin, the feeding assembly comprises a filtering mechanism, and a filter press assembly is arranged in the bottom shell. The invention can solve the problem that it is difficult for the existing filtering device to fully filter and remove impurities in the dissolving liquid. The invention stirs the dissolving liquid while the spiral blades convey the dissolving liquid, and the cleaning part can also stir the dissolving liquid while filtering and cleaning the impurities, so as to avoid the sedimentation of the remaining impurities; the dissolving liquid is preliminarily filtered by the inner frame, the dissolving liquid is secondary filtered by the outer frame, and the dissolving liquid is filtered and scraped again by the cleaning part, and the multi-stage filtration ensures that the impurities are fully removed; the filter press plate is driven to move back and forth by the electric push rod, so that the filter press plate drives the filter plate to squeeze and filter the dissolving liquid, and the inner wall of the filter press bin can be cleaned when the filter press plate moves back and forth.

Description

Technical Field

[0001] The invention relates to the technical field of filtering devices, and in particular to a dissolving liquid filtering device for producing lyocell fibers. Background Art

[0002] Lyocell fiber is a green fiber made of natural plant fiber, which has many excellent properties of both natural fiber and synthetic fiber. There is no chemical reaction in its production process, and the solvent used is non-toxic. It has high strength, basically no shrinkage, and good moisture permeability. The dissolving liquid of Lyocell fiber generally refers to the solvent used in the manufacturing process of Lyocell fiber, mainly aminoethanol or similar organic solvents. These dissolving liquids can effectively dissolve cellulose for spinning and processing of fibers. The dissolving liquid generally contains impurities such as fine fibers, tiny particles or colloidal substances.

[0003] For example, the patent with the authorization announcement number CN218188159U and the authorization announcement date January 3, 2023, and the name of "A solvent pipeline filter device for lyocell fiber production", includes an inlet pipe, an outlet pipe, a filter tank, a storage box, a primary filter assembly and a scraping comb filter assembly. The inlet pipe and the outlet pipe are arranged at both ends of the filter tank. The primary filter assembly includes a filter mesh box, an impurity auger and a conveying motor. The filter mesh box is tilted in the filter tank, the impurity auger is rotatably arranged in the filter mesh box, the conveying motor is arranged on the filter mesh box, the conveying motor is connected to the impurity auger, and a discharge pipe is provided on the filter tank, and the impurity auger extends into the discharge pipe. The patent performs preliminary filtration of the solvent through the solid-liquid separation effect of the primary filter assembly, and then the scraping action of the scraping comb filter assembly further removes the impurities therein, and has the effect of storing impurities, so that impurities will not be retained on the filter device, thereby improving the convenience of use and maintenance.

[0004] Although the above-mentioned filtering device can perform preliminary filtering of the dissolved liquid through the filter box when the impurities are conveyed by the auger, and then further remove the impurities in the dissolved liquid through the scraping and combing filter assembly, and store the impurities, the impurity particles in the solution are of different sizes. It is difficult to fully filter and remove the impurities in the dissolved liquid by only filtering the dissolved liquid once through the filter box and then scraping and combing the impurities in the dissolved liquid, resulting in a large amount of impurities in the dissolved liquid after recovery. Summary of the invention

[0005] The purpose of the present invention is to provide a dissolving liquid filtering device for lyocell fiber production to solve the above-mentioned shortcomings in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A dissolving liquid filtering device for producing lyocell fibers comprises a bottom shell, a feed bin is obliquely arranged on the upper end of the bottom shell, and both the bottom shell and the feed bin are hollow structures;

[0008] A bottom shell, wherein an inclined surface is disposed at the upper end of the bottom shell, and the feed bin is disposed at the upper end of the inclined surface, and the inclined surface makes one end of the feed bin higher than the other end, a filter press bin is disposed at one side inside the bottom shell, the filter press bin is connected to the feed bin through a discharge port, and a discharge pipe is disposed between the filter press bin and the bottom shell, and a filter cover is disposed at one end of the discharge pipe disposed in the filter press bin, and the filter cover is used to further reduce impurities in the dissolved liquid;

[0009] A feed bin, the feed bin comprising a fixed section and a movable section, the fixed section is arranged on the inclined surface of the bottom shell, one end of the fixed section is arranged with a movable section, and one end of the fixed section away from the movable section is arranged with a feed pipe in a dynamic seal;

[0010] A feeding assembly, the feeding assembly includes a driving motor, the output end of the driving motor is equipped with a rotating shaft through a coupling, the rotating shaft is arranged inside the fixed section, a spiral blade is arranged on the outside of the rotating shaft, a cleaning member is arranged between the spiral blade and the rotating shaft, the cleaning member is used to clean impurities in the dissolved liquid when the spiral blade rotates, and a filtering mechanism is arranged at one end of the rotating shaft close to the driving motor, the filtering mechanism is connected to one end of the fixed section in a rotational manner, and the filtering mechanism is connected to the feeding pipe, and the filtering mechanism is used to filter the dissolved liquid;

[0011] A filter mechanism, the filter mechanism comprising an outer frame, the outer frame is slidably arranged at one end of the rotating shaft close to the driving motor through a spline, an inner frame is arranged inside the outer frame in a threaded manner, a locking nut is arranged at one end of the rotating shaft close to the driving motor in a threaded manner, a first sealing plate is rotatably arranged at one end of the locking nut close to the inner frame, the first sealing plate is rotatably and sealedly connected to the fixed section, a second sealing plate is arranged at one end of the first sealing plate close to the inner frame, and the second sealing plate can seal the ends of the inner frame and the outer frame;

[0012] A filter press assembly, the filter press assembly includes an electric push rod, the extended end of the electric push rod is dynamically sealed and extends into the filter press chamber, a diverter plate is arranged on the upper side of the interior of the filter press chamber, a plurality of groups of V-shaped baffles are arranged on the upper end of the diverter plate, a plurality of filter press plates are arranged on the lower end of the diverter plate, the filter press plates are arranged inside the filter press chamber in a sliding manner, and a filter plate is arranged in the middle of the filter press plate by a snap-on manner.

[0013] The above also includes a grinding assembly, which is arranged at the connection between the fixed section and the movable section, and is used to grind the solution transported thereto by the spiral blade to reduce the impurity particles therein.

[0014] As mentioned above, the grinding assembly includes a rotating grinding plate, which is arranged at one end of the rotating shaft close to the movable section, and the rotating grinding plate is rotatably arranged inside the fixed section close to one end of the movable section, and the movable section close to the fixed section has a sliding grinding plate slidably arranged at one end, the rotating grinding plate and the sliding grinding plate are in contact with each other, and a buffer spring is arranged between the sliding grinding plate and the movable section.

[0015] As mentioned above, the rotating grinding plate is evenly provided with conical holes, the end of the conical hole with a smaller aperture faces the sliding grinding plate, grinding blocks are arranged between the conical holes, and the grinding blocks are evenly arranged on one end of the rotating grinding plate close to the sliding grinding plate.

[0016] As mentioned above, a spiral groove is provided at one end of the sliding grinding plate close to the rotating grinding plate.

[0017] As mentioned above, a plurality of scrapers are arranged between the spiral blades, and the plurality of scrapers are evenly arranged along the circumference of the rotating shaft. The scrapers are connected to the rotating shaft through a plurality of connecting rods, and the connecting rods are connected through a plurality of steel wire ropes, and the plurality of steel wire ropes are evenly arranged along the length direction of the connecting rods.

[0018] As mentioned above, a plurality of filter holes are evenly arranged on the frame wall of the inner frame, a plurality of feed holes are also arranged in the middle of the frame wall of the inner frame, and an annular plate is rotatably sleeved on the middle of the outer side of the inner frame, the position of the annular plate corresponds to the position of the plurality of feed holes, and the annular plate is connected to the feed pipe by threaded fitting.

[0019] As mentioned above, the outer frame includes a first supporting section, which is slidably arranged on the rotating shaft through a spline, a connecting section is rotatably arranged on one end of the first supporting section close to the driving motor, a second supporting section is rotatably arranged on one end of the connecting section close to the driving motor, the second supporting section is slidably arranged on the rotating shaft through a spline, and a plurality of rectangular grooves are evenly arranged on the frame walls of the first supporting section, the second supporting section and the connecting section, and a filter is arranged in the rectangular groove.

[0020] As mentioned above, the upper end of the diverter plate is an inclined surface, and a plurality of circular holes are arranged in the middle of the diverter plate, the diameter of the circular holes gradually increases in the direction away from the discharge port, the circular holes are located at the lower end of the V-shaped baffle, and the dissolved liquid can be guided to the circular holes by the V-shaped baffle.

[0021] As mentioned above, the filter press assembly also includes a plurality of barrier blocks, which are arranged at the lower end of the diverter plate and on the side of the circular hole close to the electric push rod. The barrier blocks have a consistent appearance and gradually decrease in the direction away from the electric push rod. A barrier groove is arranged in the middle of the upper end of the filter press plate, and the barrier groove gradually decreases in the direction away from the electric push rod. Two adjacent filter press plates are connected by two connecting ropes.

[0022] In the above technical solution, the beneficial effects of the present invention are:

[0023] 1. The present invention can stir the dissolved liquid while the spiral blade is used to spirally convey the dissolved liquid, and the cleaning member provided between the spiral blade and the rotating shaft can filter and clean the impurities in the dissolved liquid during the conveying process. At the same time, the cleaning member can also stir the dissolved liquid to avoid the sedimentation of the remaining impurities in the dissolved liquid, so that the remaining impurities can enter the filter press assembly for further filtering treatment;

[0024] 2. The present invention directly transports the dissolved liquid into the inner frame through the feed pipe, so that the inner frame performs a preliminary filtration on the dissolved liquid. The dissolved liquid after the preliminary filtration enters the outer frame, so that the outer frame performs a secondary filtration on the dissolved liquid. The dissolved liquid after the secondary filtration is filtered and scraped again by the cleaning part when the spiral blade transports the impurities in it. The multi-stage filtration method can ensure that the impurities in the dissolved liquid are fully removed;

[0025] 3. The present invention drives the filter press plate to move back and forth in sequence through the electric push rod, so that the filter press plate drives the filter plate to squeeze and filter the dissolved liquid, thereby further reducing the impurities in the dissolved liquid. The extrusion filtration method can compress the impurities so that more impurities can be stored in the filter press bin, and the filtration time of the filter press assembly can be extended to filter more dissolved liquid. At the same time, the filter press plate can clean the inner wall of the filter press bin when it moves back and forth. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 A schematic diagram of the three-dimensional structure of a filtering device provided in an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of the planar structure of a filtering device provided in an embodiment of the present invention;

[0029] Figure 3Another embodiment of the present invention provides Figure 2 Sectional view at AA;

[0030] Figure 4 Another embodiment of the present invention provides Figure 3 A local enlarged schematic diagram of the M position;

[0031] Figure 5 A schematic diagram of a three-dimensional structure of a feed pipe, a rotating shaft, an outer frame, a locking nut, a first sealing plate and a second sealing plate provided in another embodiment of the present invention;

[0032] Figure 6 A cross-sectional view of a feed bin, a rotating shaft and a filtering mechanism provided by another embodiment of the present invention;

[0033] Figure 7 Another embodiment of the present invention provides Figure 3 A local enlarged schematic diagram of N locations;

[0034] Figure 8 A schematic diagram of a three-dimensional structure of a rotating shaft, a spiral blade, a scraper, a connecting rod, a wire rope, a rotating grinding plate, a tapered hole and a grinding block provided in another embodiment of the present invention;

[0035] Fig. 9 Another embodiment of the present invention provides Figure 3 A local enlarged schematic diagram of S;

[0036] Fig.10 A schematic diagram of a three-dimensional structure between a sliding grinding plate and a spiral groove provided in another embodiment of the present invention;

[0037] Fig.11 A schematic diagram of the three-dimensional structure of a filter press plate, a filter plate and a barrier block provided in another embodiment of the present invention;

[0038] Fig.12 Another embodiment of the present invention provides Figure 3 A local enlarged schematic diagram of K;

[0039] Fig.13 A schematic diagram of the three-dimensional structure between a diverter plate, circular holes and a filter press plate provided in another embodiment of the present invention.

[0040] Description of reference numerals:

[0041] 1. Bottom shell; 10. Filter press bin; 11. Discharge pipe; 110. Filter cover; 2. Feed bin; 20. Fixed section; 200. Feed pipe; 21. Movable section; 3. Discharge port; 4. Feed assembly; 40. Drive motor; 41. Rotating shaft; 42. Spiral blade; 420. Scraper; 421. Connecting rod; 422. Wire rope; 43. Filter mechanism; 430. Outer frame; 4300. First support section; 4301. Connecting section; 4302. Second support section; 4303. Filter screen; 431. Inner frame; 4310 , filter hole; 4311, feed hole; 4312, annular plate; 432, locking nut; 433, first sealing plate; 434, second sealing plate; 5, filter press assembly; 50, electric push rod; 51, diverter plate; 510, round hole; 52, V-shaped baffle; 53, filter press plate; 54, filter plate; 55, barrier block; 56, barrier groove; 57, connecting rope; 6, grinding assembly; 60, rotating grinding plate; 600, conical hole; 601, grinding block; 61, sliding grinding plate; 610, spiral groove; 62, buffer spring. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "vertical", "horizontal", "side", "inside", "outside", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] like Figure 1-13 As shown, a dissolving liquid filtering device for lyocell fiber production provided by an embodiment of the present invention comprises a bottom shell 1, a feed bin 2 is obliquely arranged on the upper end of the bottom shell 1, and the bottom shell 1 and the feed bin 2 are both hollow structures;

[0045] A bottom shell 1, wherein an inclined surface is disposed at the upper end of the bottom shell 1, and the feed bin 2 is disposed at the upper end of the inclined surface, and the inclined surface makes one end of the feed bin 2 higher than the other end, and a filter press bin 10 is disposed at one side inside the bottom shell 1, and the filter press bin 10 is connected to the feed bin 2 through a discharge port 3, and a discharge pipe 11 is disposed between the filter press bin 10 and the bottom shell 1, and a filter cover 110 is disposed at one end of the discharge pipe 11 disposed in the filter press bin 10, and the filter cover 110 is used to further reduce impurities in the dissolved liquid;

[0046] The feed bin 2 comprises a fixed section 20 and a movable section 21. The fixed section 20 is arranged on the inclined surface of the bottom shell 1, and the movable section 21 is arranged at one end of the fixed section 20. A feed pipe 200 is arranged at one end of the fixed section 20 away from the movable section 21 in a dynamic seal;

[0047] A feeding assembly 4, wherein the feeding assembly 4 comprises a driving motor 40, wherein a rotating shaft 41 is installed at the output end of the driving motor 40 through a coupling, wherein the rotating shaft 41 is arranged inside the fixed section 20, wherein a spiral blade 42 is arranged outside the rotating shaft 41, wherein a cleaning member is arranged between the spiral blade 42 and the rotating shaft 41, wherein the cleaning member is used to clean impurities in the dissolved liquid when the spiral blade 42 rotates, and wherein a filtering mechanism 43 is arranged at one end of the rotating shaft 41 close to the driving motor 40, wherein the filtering mechanism 43 is connected to one end of the fixed section 20 in a rotational manner, and wherein the filtering mechanism 43 is connected to the feeding pipe 200, and wherein the filtering mechanism 43 is used to filter the dissolved liquid;

[0048] A filter mechanism 43, the filter mechanism 43 comprises an outer frame 430, the outer frame 430 is slidably arranged at one end of the rotating shaft 41 close to the driving motor 40 through a spline, an inner frame 431 is arranged inside the outer frame 430 in a threaded manner, a locking nut 432 is arranged at one end of the rotating shaft 41 close to the driving motor 40 in a threaded manner, a first sealing plate 433 is rotatably arranged at one end of the locking nut 432 close to the inner frame 431, the first sealing plate 433 is rotatably and sealingly connected to the fixed section 20, a second sealing plate 434 is arranged at one end of the first sealing plate 433 close to the inner frame 431, and the second sealing plate 434 can seal the ends of the inner frame 431 and the outer frame 430;

[0049] The filter press assembly 5 includes an electric push rod 50, the protruding end of the electric push rod 50 is dynamically sealed and extends into the filter press chamber 10, a diverter plate 51 is arranged on the upper side of the interior of the filter press chamber 10, a plurality of groups of V-shaped baffles 52 are arranged on the upper end of the diverter plate 51, a plurality of filter press plates 53 are arranged on the lower end of the diverter plate 51, the filter press plates 53 are arranged in a sliding manner in the interior of the filter press chamber 10, four trapezoidal bars are symmetrically arranged in the interior of the filter press chamber 10 about the electric push rod 50, the filter press plates 53 are slidably arranged on the outer side of the trapezoidal bars, the trapezoidal bars can prevent the filter press plates 53 from deflecting when moving, and a filter plate 54 is arranged in the middle of the filter press plate 53 by a snap-on manner.

[0050] Another embodiment provided by the present invention further includes a grinding assembly 6, which is disposed at the connection between the fixed section 20 and the movable section 21, and is used to grind the solution delivered thereto by the spiral blade 42 to reduce the impurity particles therein;

[0051] The specific implementation method is as follows: the dissolving liquid in the production process of lyocell fiber contains impurities such as fine fibers, tiny particles or colloidal substances. In order to obtain the recycled dissolving liquid, a filtering mechanism 43 and a filter press assembly 5 are set to filter the dissolving liquid. When the dissolving liquid is filtered, the grinding assembly 6 is driven by the driving motor 40 to rotate and grind the dissolving liquid filtered by the filtering mechanism 43, so as to grind and crush the impurities still contained in the dissolving liquid after the initial filtration, thereby reducing the fine fibers and tiny particles in the dissolving liquid, and squeezing and crushing the colloidal substances in the dissolving liquid.

[0052] In another embodiment provided by the present invention, the grinding assembly 6 includes a rotating grinding plate 60, which is arranged at one end of the rotating shaft 41 close to the movable section 21, and the rotating grinding plate 60 is rotatably arranged inside the fixed section 20 close to one end of the movable section 21, and the movable section 21 is slidably provided with a sliding grinding plate 61 at one end close to the fixed section 20, the rotating grinding plate 60 and the sliding grinding plate 61 are in contact with each other, and a buffer spring 62 is provided between the sliding grinding plate 61 and the movable section 21;

[0053] The specific implementation is as follows: the dissolved liquid in the production process of lyocell fiber enters the filtering mechanism 43 through the feeding pipe 200 for filtration, and at the same time, the driving motor 40 drives the spiral blade 42 to rotate through the rotating shaft 41 to transport the dissolved liquid filtered by the filtering mechanism 43 to between the rotating grinding plate 60 and the sliding grinding plate 61, and the driving motor 40 drives the spiral blade 42 to rotate through the rotating shaft 41, and can also drive the rotating grinding plate 60 to rotate, so that the rotating grinding plate 60 during rotation grinds the dissolved liquid between the rotating grinding plate 60 and the sliding grinding plate 61, and during the grinding process of the dissolved liquid after the initial filtration, impurities can squeeze the sliding grinding plate 61, so that the sliding grinding plate 61 squeezes the buffer spring 62 to move into the movable section 21, so that impurities of different particle sizes can smoothly enter between the rotating grinding plate 60 and the sliding grinding plate 61 for grinding.

[0054] In another embodiment provided by the present invention, the rotating grinding plate 60 is evenly provided with tapered holes 600, the end of the tapered hole 600 with a smaller aperture faces the sliding grinding plate 61, a grinding block 601 is provided between the tapered holes 600, and the grinding block 601 is evenly provided at one end of the rotating grinding plate 60 close to the sliding grinding plate 61;

[0055] The specific implementation is as follows: the end of the conical hole 600 on the rotating grinding plate 60 with a small aperture faces the sliding grinding plate 61, and the end with a large aperture faces the spiral blade 42, so that the spiral blade 42 can conveniently transport the dissolving liquid for lyocell fiber production through the conical hole 600 to between the rotating grinding plate 60 and the sliding grinding plate 61, and when the driving motor 40 drives the rotating grinding plate 60 to rotate through the rotating shaft 41, the rotating grinding plate 60 can drive the grinding block 601 to rotate together with it around the rotating shaft, so that the grinding block 601 attached to the surface of the sliding grinding plate 61 grinds the dissolving liquid transported to between the rotating grinding plate 60 and the sliding grinding plate 61, so that the grinding block 601 grinds the fine fibers and tiny particles in the dissolving liquid, and squeezes and crushes the colloidal substances in the dissolving liquid.

[0056] In another embodiment provided by the present invention, a spiral groove 610 is provided at one end of the sliding grinding plate 61 close to the rotating grinding plate 60;

[0057] The specific implementation is as follows: the opening of the spiral groove 610 faces the edge of the sliding grinding plate 61, and the spiral groove 610 has three functions in the grinding process: first, the spiral groove 610 can accommodate granular impurities that are difficult to grind and crush in time, so that the grinding block 601 is always attached to the surface of the sliding grinding plate 61, and the distance between the grinding block 601 and the sliding grinding plate 61 is avoided to be too large to fully grind the impurities in the solution, thereby ensuring the grinding effect of the rotating grinding plate 60 and the sliding grinding plate 61; second, the spiral groove 610 can accommodate a part of the solution that enters between the rotating grinding plate 60 and the sliding grinding plate 61, so that the solution, the rotating grinding plate 60, the grinding block 601 and the sliding grinding plate 61 in the grinding process are cooled down, and the situation that the temperature is too high during grinding and the grinding effect is not good; third, the opening of the spiral groove 610 faces the edge of the sliding grinding plate 61, so that the spiral groove 610 can discharge the impurities that are difficult to crush in time contained therein during grinding, and take away the heat in time while ensuring the grinding effect of the rotating grinding plate 60, the grinding block 601 and the sliding grinding plate 61.

[0058] In another embodiment provided by the present invention, a plurality of scrapers 420 are provided between the spiral blades 42, and the plurality of scrapers 420 are evenly arranged along the circumference of the rotating shaft 41, and the scrapers 420 are connected to the rotating shaft 41 through a plurality of connecting rods 421, and the connecting rods 421 are connected through a plurality of steel wire ropes 422, and the plurality of steel wire ropes 422 are evenly arranged along the length direction of the connecting rods 421;

[0059] The specific implementation is as follows: a plurality of connecting rods 421 and a plurality of steel wire ropes 422 are interlaced and woven to form a mesh-like structure, so that when the driving motor 40 drives the spiral blade 42 to rotate through the rotating shaft 41, the rotating shaft 41 and the spiral blade 42 can drive the plurality of scrapers 420, the plurality of connecting rods 421 and the plurality of steel wire ropes 422 to rotate synchronously around the center line of the rotating shaft 41, so that the plurality of connecting rods 421 and the plurality of steel wire ropes 422 when rotating can cut and filter the dissolved liquid when the spiral blade 42 is conveying, thereby filtering and removing the colloidal impurities in the dissolved liquid, and the plurality of connecting rods 421 and the plurality of steel wire ropes 422 can clean the impurities in the dissolved liquid while In addition, when the multiple scrapers 420 rotate, they have two functions: first, the scrapers 420 are attached to the inner wall surface of the fixed section 20, so that the scrapers 420 can scrape off the dissolved liquid adhering to the inner wall of the fixed section 20 when rotating, and the scrapers 420 play a cleaning role; second, when the multiple scrapers 420 rotate, they can stir the dissolved liquid rotated and transported by the spiral blades 42, so as to stir and mix the impurities into the dissolved liquid to avoid the precipitation of the impurities. At the same time, the impurities mixed into the dissolved liquid can pass through the rotating grinding plate 60 more evenly to avoid the impurities blocking the rotating grinding plate 60.

[0060] Furthermore, a plurality of steel wires are evenly arranged on the outside of the steel wire rope 422, and the plurality of steel wires form a structure similar to a duster shape, so that the steel wire rope 422 can filter impurities in the solution through the plurality of steel wires.

[0061] In another embodiment provided by the present invention, a plurality of filter holes 4310 are evenly arranged on the frame wall of the inner frame 431, the inner frame 431 is a cylindrical frame, a plurality of feed holes 4311 are also arranged in the middle of the frame wall of the inner frame 431, the feed holes 4311 are evenly arranged along the circumference of the inner frame 431, and an annular plate 4312 is rotatably sleeved on the middle of the outer side of the inner frame 431, the position of the annular plate 4312 corresponds to the positions of the plurality of feed holes 4311, and the annular plate 4312 is connected to the feed pipe 200 by threaded matching;

[0062] The specific implementation is as follows: a connecting portion is provided on the annular plate 4312, and the connecting portion is connected to the feed pipe 200. When the driving motor 40 drives the outer frame 430 and the inner frame 431 to rotate synchronously through the rotating shaft 41, the rotating shaft 41 can drive the inner frame 431 to rotate. At this time, the annular plate 4312 will not rotate, that is, the rotating shaft 41 drives the inner frame 431 to rotate in the annular plate 4312. In this way, when the dissolved liquid is transported to the inner frame 431 through the feed pipe 200, the dissolved liquid can enter the inner frame only when and only when the position of the connecting portion coincides with the feed hole 4311. 431, so that the inner frame 431 and the annular plate 4312 can intermittently feed the dissolved liquid, prolong the time for the grinding component 6 to grind the impurities in the dissolved liquid, and ensure that the impurities in the dissolved liquid are fully ground and crushed. After the dissolved liquid enters the inner frame 431, the driving motor 40 drives the inner frame 431 to continue to rotate through the rotating shaft 41, so that the dissolved liquid in the inner frame 431 is thrown from the filter hole 4310 to the inside of the outer frame 430 under the action of centrifugal force. When the dissolved liquid is thrown out from the filter hole 4310 of the inner frame 431, the filter hole 4310 can filter the impurities in the dissolved liquid for the first time.

[0063] In another embodiment provided by the present invention, the outer frame 430 includes a first support segment 4300, which is slidably arranged on the rotating shaft 41 through a spline, and a connecting segment 4301 is rotatably arranged at one end of the first support segment 4300 close to the driving motor 40, and the connecting segment 4301 is connected to the feeding pipe 200 through a threaded fit, and a second support segment 4302 is rotatably arranged at one end of the connecting segment 4301 close to the driving motor 40, and the second support segment 4302 is slidably arranged on the rotating shaft 41 through a spline, and a plurality of rectangular grooves are evenly arranged on the frame walls of the first support segment 4300, the second support segment 4302 and the connecting segment 4301, and a filter screen 4303 is arranged in the rectangular groove;

[0064] The specific implementation is as follows: the two ends of the connecting section 4301 are respectively provided with a first supporting section 4300 and a second supporting section 4302 in a rotating manner, and the second supporting section 4302 is located closer to the driving motor 40. The first supporting section 4300 and the second supporting section 4302 are both slidably provided on the rotating shaft 41 through splines. In this way, after the solution filtered by the inner frame 431 enters the outer frame 430, the driving motor 40 drives the first supporting section 4300 and the second supporting section 4302 to rotate through the rotating shaft 41. When the support segment 4302 rotates on the connecting segment 4301, the connecting segment 4301 remains stationary under the action of the feeding pipe 200. When the first support segment 4300 and the second support segment 4302 rotate on the connecting segment 4301, the dissolved liquid after the initial filtration is thrown from the rectangular groove of the outer frame 430 to the inside of the fixed segment 20 under the action of centrifugal force inside the outer frame 430. When the dissolved liquid is thrown out from the rectangular groove of the outer frame 430, the filter net 4303 can filter the impurities in the dissolved liquid for a second time to reduce the impurities in the dissolved liquid.

[0065] In another embodiment provided by the present invention, the upper end of the diverter plate 51 is an inclined surface, and a plurality of circular holes 510 are provided in the middle of the diverter plate 51, and the diameter of the circular holes 510 gradually increases in the direction away from the discharge port 3. The circular holes 510 are located at the lower end of the V-shaped baffle plate 52, and the dissolved liquid can be guided to the circular holes 510 by the V-shaped baffle plate 52;

[0066] The specific implementation method is as follows: the ground solution flows to the upper end of the diverter plate 51 through the discharge port 3, and the inclined surface of the upper end of the diverter plate 51 can make the solution flow from one end of the diverter plate 51 to the other end of the diverter plate 51, and when the solution flows at the upper end of the diverter plate 51, each group of the V-shaped baffles 52 can guide the solution to the circular hole 510 at its lower end, and the diameter of the circular hole 510 gradually increases in the direction away from the discharge port 3, so that the solution flowing down from the discharge port 3 first flows to the filter press from the first circular hole 510 which is closest to it and has the smallest aperture The bottom of the filter press chamber 10 is located at the bottom of the circular hole 510, and the circular hole 510 closest to the discharge port 3 is small in diameter. Therefore, the dissolved liquid that cannot be discharged from this circular hole 510 to the bottom of the filter press chamber 10 in time will flow from the opening of the V-shaped baffle 52 to the second circular hole 510, so that the dissolved liquid flows from the second circular hole 510 to the bottom of the filter press chamber 10. Similarly, when the dissolved liquid cannot flow to the bottom of the filter press chamber 10 in time at the previous circular hole 510, the dissolved liquid will flow down from the next circular hole 510, thereby preventing the dissolved liquid from having sufficient time to be filtered and preventing the dissolved liquid from flowing back.

[0067] In another embodiment provided by the present invention, the filter press assembly 5 further includes a plurality of blocking blocks 55, which are arranged at the lower end of the diverter plate 51 and on the side of the circular hole 510 close to the electric push rod 50, and the blocking blocks 55 have a consistent appearance and gradually decrease in the direction away from the electric push rod 50, and a blocking groove 56 is arranged in the middle of the upper end of the filter press plate 53, and the blocking groove 56 gradually decreases in the direction away from the electric push rod 50, and two adjacent filter press plates 53 are connected by two connecting ropes 57;

[0068] The specific implementation is as follows: the dissolved liquid flows through the inner frame 431, the outer frame 430, the filter plate 54 and the filter cover 110 in sequence for filtration. According to the flow order of the dissolved liquid, the mesh size of the filter device is gradually reduced to ensure the filtering effect. The dissolved liquid flows to the bottom of the filter press chamber 10 through the circular hole 510. At this time, the extended end of the electric push rod 50 drives the filter press plate 53 connected thereto to slide along the inside of the filter press chamber 10, so that the first filter press plate 53 approaches the second filter press plate 53 and squeezes and filters the dissolved liquid. In this way, the electric push rod 50 can drive the previous filter press plate 53 to approach the next filter press plate 53 and squeeze and filter the dissolved liquid. When each filter press plate 53 slides along the inside of the filter press chamber 10, the barrier groove 56 in the middle of the upper end of the previous filter press plate 53 can pass through the barrier blocks 55 at the upper ends of each filter press plate 53 behind it, thereby It is convenient for each filter press plate 53 to approach each other to squeeze and filter the dissolved liquid, and the filter press plate 53 can also clean the inner wall of the filter press bin 10 when it moves, so as to prevent the dissolved liquid from sticking to the inner wall of the filter press bin 10; when the extended end of the electric push rod 50 retracts, the extended end of the electric push rod 50 first drives the filter press plate 53 connected thereto to move in the opposite direction and reset, and when the filter press plate 53 moves in the opposite direction and resets, it can pull the filter press plate 53 connected thereto through the connecting rope 57, so that the connecting rope 57 drives the second filter press plate 53 to move in the opposite direction and reset, and when each filter press plate 53 moves in the opposite direction and resets, the blocking groove 56 in the middle of the upper end of the filter press plate 53 close to the electric push rod 50 can pass through the blocking block 55, so that a blocking block 55 can limit the filter press plate 53 at the corresponding position, ensuring that each filter press plate 53 is reset to its original position for intermittent filtration of the dissolved liquid.

[0069] Furthermore, a sealing door is provided on one side of the bottom shell 1 and the filter press chamber 10. Thus, opening the sealing door can clean the impurities filtered out of the filter press chamber 10, thereby preventing the impurities from weakening the filtering capacity of the filter plate 54 and the filter cover 110, thereby ensuring the filtering capacity of the filter plate 54 and the filter cover 110.

[0070] Working principle: The lower end of the feed pipe 200 passes through the fixed section 20 and is screwed together with the connecting section 4301 of the outer frame 430 and the annular plate 4312 of the inner frame 431, so that the dissolved liquid can be directly transported into the inner frame 431 through the feed pipe 200. When the dissolved liquid enters the feed pipe 200 through the feed pipe 200, the driving motor 40 drives the rotating shaft 41 to rotate, so that the rotating shaft 41 drives the inner frame 431 to rotate synchronously in the annular plate 4312 through the outer frame 430. In this way, the dissolved liquid can enter the inner frame 431 only when and only when the position of the connecting portion coincides with the position of the feed hole 4311, so that the inner frame 431 and the annular plate 4312 can intermittently feed the dissolved liquid, which is convenient for extending the grinding group. The length of time for grinding impurities in the dissolved liquid by part 6 ensures that the impurities in the dissolved liquid are fully ground and crushed, and when the dissolved liquid enters the inner frame 431, the driving motor 40 drives the inner frame 431 to continue to rotate through the rotating shaft 41, so that the dissolved liquid in the inner frame 431 is thrown from the multiple filter holes 4310 to the inside of the outer frame 430 under the action of centrifugal force. When the dissolved liquid is thrown out from the multiple filter holes 4310 of the inner frame 431, the multiple filter holes 4310 can filter the impurities in the dissolved liquid for the first time; after the dissolved liquid after the initial filtration by the inner frame 431 enters the outer frame 430, the driving motor 40 drives the first supporting section 4300 and the second supporting section 4302 to rotate on the connecting section 4301 through the rotating shaft 41, and the connecting section 4301 remains stationary under the action of the feed pipe 200. When the first support segment 4300 and the second support segment 4302 rotate on the connecting segment 4301, the dissolved liquid after the initial filtration is thrown from the multiple rectangular grooves of the outer frame 430 to the inside of the fixed segment 20 under the action of centrifugal force inside the outer frame 430. When the dissolved liquid is thrown out from the multiple rectangular grooves of the outer frame 430, the filter nets 4303 provided in the multiple rectangular grooves can perform a second filtration on the impurities in the dissolved liquid to further reduce the impurities in the dissolved liquid. In addition, after filtering for a period of time, more impurities may be filtered out of the inner frame 431 and the outer frame 430, and these impurities will cause the filtering effect of the inner frame 431 and the outer frame 430 to be significantly reduced. Therefore, it is necessary to remove the impurities filtered inside the inner frame 431 and the outer frame 430. Specifically, first, the driving motor 40 is removed from the bottom shell 1 and separated from the rotating shaft 41, and then the locking nut 432 is rotated so that the locking nut 432 drives the first sealing plate 433 and the second sealing plate 434 to move away from the inner frame 431, so that the locking nut 432, the first sealing plate 433 and the second sealing plate 434 are removed from the rotating shaft 41 together. The removed second sealing plate 434 releases the seal on one end of the inner frame 431 and the outer frame 430, which facilitates the cleaning of the impurities filtered inside the inner frame 431 and the outer frame 430, thereby ensuring the filtering effect of the inner frame 431 and the outer frame 430;After the impurities filtered inside the inner frame 431 and the outer frame 430 are cleaned, the first sealing plate 433 and the second sealing plate 434 are installed back to their original positions through the locking nut 432, so that the second sealing plate 434 seals the ends of the inner frame 431 and the outer frame 430, and the first sealing plate 433 seals the end of the fixed section 20. After the first sealing plate 433 and the second sealing plate 434 are installed and fixed by the locking nut 432, the drive motor 40 is installed back to its original position and its output end is connected to the rotating shaft 41 through a coupling;

[0071] In addition, a plurality of scrapers 420 are arranged between the spiral blades 42, and the scrapers 420 are connected to the rotating shaft 41 through a plurality of connecting rods 421, and the connecting rods 421 are connected to each other through a plurality of steel wire ropes 422, and the plurality of connecting rods 421 and the plurality of steel wire ropes 422 are interlaced and woven with each other to form a mesh-like structure. In this way, when the driving motor 40 drives the spiral blades 42 to rotate through the rotating shaft 41, the rotating shaft 41 and the spiral blades 42 can drive the plurality of scrapers 420, the plurality of connecting rods 421 and the plurality of steel wire ropes 422 to rotate synchronously around the center line of the rotating shaft 41, so that the plurality of connecting rods 421 and the plurality of steel wire ropes 422 during rotation can cut and filter the dissolved liquid when the spiral blades 42 are transported, thereby filtering and removing the colloidal impurities in the dissolved liquid, and the plurality of The connecting rods 421 and the wire ropes 422 can clean the impurities in the solution and stir and mix the solution and the impurities therein; in addition, when the multiple scrapers 420 rotate, they have two functions: first, the scrapers 420 are attached to the inner wall surface of the fixed section 20, so that the scrapers 420 can scrape the solution adhering to the inner wall of the fixed section 20 when rotating, and the scrapers 420 play a cleaning role; second, when the multiple scrapers 420 rotate, they can stir the solution conveyed by the spiral blades 42, so that the impurities are stirred and mixed into the solution to avoid the precipitation of the impurities. At the same time, the impurities mixed into the solution can pass through the rotating grinding plate 60 more evenly to avoid the impurities blocking the tapered holes 600 of the rotating grinding plate 60;

[0072] After being filtered twice, the dissolved liquid enters the inner cavity of the fixed section 20. When the driving motor 40 drives the spiral blade 42 to rotate through the rotating shaft 41, the dissolved liquid can be transported to the space between the rotating grinding plate 60 and the sliding grinding plate 61 for grinding to reduce the fine fibers and tiny particles in the dissolved liquid, and squeeze and crush the colloidal substances in the dissolved liquid. Specifically, the end with a small aperture of the conical hole 600 on the rotating grinding plate 60 faces the sliding grinding plate 61, and the end with a large aperture faces the spiral blade 42, so that it is convenient for the spiral blade 42 to grind the dissolved liquid for Lyocell fiber production. The solution is transported to between the rotating grinding plate 60 and the sliding grinding plate 61 through the conical hole 600, and the driving motor 40 drives the spiral blade 42 to rotate through the rotating shaft 41, and can also drive the rotating grinding plate 60 to rotate, so that the rotating grinding plate 60 drives the grinding block 601 to rotate, so that the rotating grinding plate 60 can drive the grinding block 601 to rotate with it around the rotating shaft, so that the grinding block 601 attached to the surface of the sliding grinding plate 61 grinds the solution transported to between the rotating grinding plate 60 and the sliding grinding plate 61, and at the same time, the sliding grinding plate 60 A spiral groove 610 is provided at one end close to the rotating grinding plate 60, and the opening of the spiral groove 610 faces the edge of the sliding grinding plate 61. The spiral groove 610 has three functions in the grinding process: first, the spiral groove 610 can accommodate the granular impurities that are difficult to grind and crush in time, so that the grinding block 601 can always fit on the surface of the sliding grinding plate 61, and avoid the distance between the grinding block 601 and the sliding grinding plate 61 being too large to fully grind the impurities in the solution, thereby ensuring the grinding effect of the rotating grinding plate 60 and the sliding grinding plate 61; second, the spiral groove 610 can The spiral groove 610 is provided with a portion of the solution entering between the rotating grinding plate 60 and the sliding grinding plate 61, so as to facilitate cooling of the solution, the rotating grinding plate 60, the grinding block 601 and the sliding grinding plate 61 during grinding, thereby avoiding the situation where the grinding effect is poor due to excessive temperature during grinding; thirdly, the opening of the spiral groove 610 faces the edge of the sliding grinding plate 61, so that the spiral groove 610 can conveniently discharge the impurities contained therein that are difficult to be broken in time during grinding, and timely remove the heat while ensuring the grinding effect of the rotating grinding plate 60, the grinding block 601 and the sliding grinding plate 61;

[0073] The ground dissolved liquid flows to the upper end of the diverter plate 51 through the discharge port 3. The inclined surface at the upper end of the diverter plate 51 can make the dissolved liquid flow from one end of the diverter plate 51 to the other end of the diverter plate 51. When the dissolved liquid flows at the upper end of the diverter plate 51, each group of the V-shaped baffles 52 can guide the dissolved liquid to the circular holes 510 at the lower end thereof. Since the diameter of the circular holes 510 gradually increases in the direction away from the discharge port 3, the dissolved liquid flowing down from the discharge port 3 first flows to the bottom of the filter press bin 10 from the first circular hole 510 which is the closest to it and has the smallest aperture. Moreover, due to the small aperture of the circular hole 510 which is closest to the discharge port 3, the dissolved liquid which cannot be discharged from the circular hole 510 to the bottom of the filter press bin 10 in time will flow from the V-shaped baffles 52. The opening of the shaped baffle 52 flows to the second circular hole 510, so that the dissolved liquid flows from the second circular hole 510 to the bottom of the filter press bin 10. In this way, when the dissolved liquid cannot flow to the bottom of the filter press bin 10 in time at the previous circular hole 510, the dissolved liquid will flow down from the latter circular hole 510, thereby avoiding the dissolved liquid having sufficient time to be filtered and avoiding the situation where the dissolved liquid flows back; the dissolved liquid flows to the bottom of the filter press bin 10 through the circular hole 510, and at this time, the extended end of the electric push rod 50 extends to drive the filter press plate 53 connected thereto to slide along the inside of the filter press bin 10, so that the first filter press plate 53 approaches the second filter press plate 53, so that the filter plates 54 on each filter press plate 53 are squeezed and pass through When the filter press plates 53 are moved back and forth, the filter plates 54 are pulled back and forth to filter the solution. When the filter press plates 53 are moved back and forth, the filter plates 54 are pulled back and forth to filter the solution. When the filter press plates 53 are moved back and forth, the filter plates 53 are pulled back and forth to filter the solution. When the filter press plates 53 are moved back and forth, the filter plates 53 are pulled back and forth to filter the solution. When the filter press plates 53 are moved back and forth, the filter plates 53 are pulled back and forth to filter the solution. The second filter press plate 53 is moved in the reverse direction to reset, and when each filter press plate 53 is moved in the reverse direction to reset, the blocking groove 56 in the middle of the upper end of the filter press plate 53 close to the electric push rod 50 can pass through the blocking block 55, so that one blocking block 55 can limit the filter press plate 53 at the corresponding position, ensuring that each filter press plate 53 is reset to the original position for intermittent filtering of the dissolved liquid; during the process of the filter press plate 53 driving the filter plate 54 to move in the reverse direction to reset, the filter press plate 53 can also filter the dissolved liquid, and the impurities in the dissolved liquid after multi-stage filtration are filtered and removed and then discharged through the discharge pipe 11. When the discharge pipe 11 discharges the dissolved liquid, the filter cover 110 provided at one end of the discharge pipe 11 can further reduce the impurities in the dissolved liquid.

[0074] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lyocell fiber production solution filtering device, comprising a bottom shell (1), a feed bin (2) being obliquely arranged at the upper end of the bottom shell (1), the bottom shell (1) and the feed bin (2) both having a cavity structure, characterized in that: A bottom shell (1), wherein an inclined surface is provided at the upper end of the bottom shell (1), and the feed bin (2) is provided at the upper end of the inclined surface, the inclined surface makes one end of the feed bin (2) higher than the other end, a filter press bin (10) is provided at one side inside the bottom shell (1), the filter press bin (10) and the feed bin (2) are connected via a discharge port (3), and a discharge pipe (11) is provided between the filter press bin (10) and the bottom shell (1), and a filter cover (110) is provided at one end of the discharge pipe (11) provided inside the filter press bin (10), and the filter cover (110) is used to further reduce impurities in the dissolved liquid; A feed bin (2), the feed bin (2) comprising a fixed section (20) and a movable section (21), the fixed section (20) being arranged on the inclined surface of the bottom shell (1), the movable section (21) being arranged at one end of the fixed section (20), and a feed pipe (200) being arranged in a dynamic seal at one end of the fixed section (20) away from the movable section (21); A feeding assembly (4), the feeding assembly (4) comprising a driving motor (40), the output end of the driving motor (40) being provided with a rotating shaft (41) via a coupling, the rotating shaft (41) being arranged inside the fixed section (20), the outer side of the rotating shaft (41) being provided with a spiral blade (42), a cleaning member being arranged between the spiral blade (42) and the rotating shaft (41), the cleaning member being used to clean impurities in the dissolved liquid when the spiral blade (42) rotates, and a filtering mechanism (43) being arranged at one end of the rotating shaft (41) close to the driving motor (40), the filtering mechanism (43) being connected to one end of the fixed section (20) in a rotational manner, and the filtering mechanism (43) being connected to the feeding pipe (200), the filtering mechanism (43) being used to filter the dissolved liquid; A filtering mechanism (43), the filtering mechanism (43) comprising an outer frame (430), the outer frame (430) being slidably arranged at one end of the rotating shaft (41) close to the driving motor (40) via a spline, an inner frame (431) being arranged inside the outer frame (430) in a threaded manner, a locking nut (432) being arranged at one end of the rotating shaft (41) close to the driving motor (40) in a threaded manner, a first sealing plate (433) being rotatably arranged at one end of the locking nut (432) close to the inner frame (431), the first sealing plate (433) being rotatably and sealingly connected to the fixing section (20), a second sealing plate (434) being arranged at one end of the first sealing plate (433) close to the inner frame (431), the second sealing plate (434) being capable of sealing the ends of the inner frame (431) and the outer frame (430); A filter press assembly (5), the filter press assembly (5) comprising an electric push rod (50), the extended end of the electric push rod (50) extending into the filter press chamber (10) in a dynamic and sealed manner, a diverter plate (51) being arranged on the upper side of the interior of the filter press chamber (10), a plurality of groups of V-shaped baffles (52) being arranged on the upper end of the diverter plate (51), a plurality of filter press plates (53) being arranged on the lower end of the diverter plate (51), the filter press plates (53) being arranged inside the filter press chamber (10) in a sliding manner, and a filter plate (54) being arranged in the middle of the filter press plate (53) in a snap-fit ​​manner; a grinding assembly (6), the grinding assembly (6) being arranged at the connection between the fixed section (20) and the movable section (21), the grinding assembly (6) being used to grind the solution delivered thereto by the spiral blade (42) to reduce impurity particles therein; The grinding assembly (6) comprises a rotating grinding plate (60), the rotating grinding plate (60) being arranged at one end of the rotating shaft (41) close to the movable section (21), and the rotating grinding plate (60) being arranged in a rotating manner inside the fixed section (20) close to one end of the movable section (21), and a sliding grinding plate (61) being slidably arranged at one end of the movable section (21) close to the fixed section (20), the rotating grinding plate (60) and the sliding grinding plate (61) being in contact with each other, and a buffer spring (62) being arranged between the sliding grinding plate (61) and the movable section (21); The rotating grinding plate (60) is evenly provided with conical holes (600), the end of the conical hole (600) with a smaller hole diameter faces the sliding grinding plate (61), a grinding block (601) is provided between the conical holes (600), and the grinding block (601) is evenly provided at one end of the rotating grinding plate (60) close to the sliding grinding plate (61); A spiral groove (610) is provided at one end of the sliding grinding plate (61) close to the rotating grinding plate (60).

2. A lyocell fiber production solution filtering device according to claim 1, characterized in that: The cleaning member comprises a scraper (420), a plurality of the scrapers (420) are arranged between the spiral blades (42), the plurality of scrapers (420) are evenly arranged along the circumference of the rotating shaft (41), the scraper (420) and the rotating shaft (41) are connected via a plurality of connecting rods (421), the connecting rods (421) are connected via a plurality of steel wire ropes (422), and the plurality of steel wire ropes (422) are evenly arranged along the length direction of the connecting rods (421).

3. The lyocell fiber production dissolving liquid filtering device according to claim 1, characterized in that: A plurality of filter holes (4310) are evenly arranged on the frame wall of the inner frame (431), a plurality of feed holes (4311) are also arranged in the middle of the frame wall of the inner frame (431), and an annular plate (4312) is rotatably sleeved on the middle of the outer side of the inner frame (431), the position of the annular plate (4312) corresponds to the positions of the plurality of feed holes (4311), and the annular plate (4312) is connected to the feed pipe (200) by means of threaded engagement.

4. The lyocell fiber production dissolving liquid filtering device according to claim 1, characterized in that: The outer frame (430) comprises a first support section (4300), the first support section (4300) being slidably arranged on the rotating shaft (41) via a spline, a connecting section (4301) being rotatably arranged at one end of the first support section (4300) close to the drive motor (40), a second support section (4302) being rotatably arranged at one end of the connecting section (4301) close to the drive motor (40), the second support section (4302) being slidably arranged on the rotating shaft (41) via a spline, a plurality of rectangular grooves being evenly arranged on the frame walls of the first support section (4300), the second support section (4302) and the connecting section (4301), and a filter screen (4303) being arranged in the rectangular groove.

5. The lyocell fiber production dissolving liquid filtering device according to claim 1, characterized in that: The upper end of the diverter plate (51) is an inclined surface, and a plurality of circular holes (510) are provided in the middle of the diverter plate (51), wherein the diameter of the circular holes (510) gradually increases in a direction away from the discharge port (3), and the circular holes (510) are located at the lower end of the V-shaped baffle plate (52), so that the dissolved liquid can be guided to the circular holes (510) by the V-shaped baffle plate (52).

6. A lyocell fiber production solution filtering device according to claim 5, characterized in that: The filter press assembly (5) further comprises a plurality of barrier blocks (55), wherein the barrier blocks (55) are arranged at the lower end of the diverter plate (51) and are located on a side of the circular hole (510) close to the electric push rod (50), the barrier blocks (55) have a uniform appearance and gradually decrease in size in a direction away from the electric push rod (50), a barrier groove (56) is arranged in the middle of the upper end of the filter press plate (53), and the barrier groove (56) gradually decreases in size in a direction away from the electric push rod (50), and two adjacent filter press plates (53) are connected via two connecting ropes (57).

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