Circulating efficient desalting device for polyarylester production

Abstract

The utility model discloses a circulating efficient desalting device for polyarylester production, which belongs to the technical field of polyarylester and comprises a base, a feeding box, an operation box and a collecting box, and a water supply pipeline, an exhaust pipeline and a second discharge door are mounted on the side wall of the operation box; a material outlet is formed in the material supply box, the material outlet is connected with a material supply pipe, the material supply pipe extends into the operation box, a pressing valve is installed on the material supply pipe, and an adjustable synchronous blanking mechanism used for being matched with the pressing valve is installed between the material supply box and the operation box; and a rotary vibration mechanism and a driving mechanism are mounted on the base. According to the mode, the rotary vibration mechanism is used for enabling the polyarylester refined glue solution to be converted into polyarylester particles which are crystallized after being desalted, so that the polyarylester particles do not cake and block micropores, and the blockage problem that the existing polyarylester crystal particles are easy to bond into blocks is solved; and the total amount of the polyarylester refined glue solution added into the roller is controllable through the adjustable synchronous blanking mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of polyarylate, in particular to a circulating high-efficiency desalination device for polyarylate production. Background Art

[0002] In industrial production, polyarylates are widely used in electronic appliances, medical treatment, machinery and other fields. Polyarylates need to be desalted during the production process, and a desalting device is required.

[0003] Chinese patent CN211896751U discloses a circulating desalination device for polyarylate production, wherein a through slot is horizontally arranged in the cleaning chamber, the upper end of the through slot is connected to the upper chamber, and the lower end is connected to the lower chamber through a stop valve, and an accommodating space is arranged in the through slot, and a cleaning drum is arranged in the accommodating space, and fine through holes are arranged on the outer wall of the cleaning drum, and a rotating shaft is connected to the motor at one end of the cleaning drum, and a feed pipe is arranged at the other end, and a liquid pump is arranged on the feed pipe. The device uses the cleaning drum in conjunction with a hot water tank to quickly heat and evaporate the separation agent while dissolving and removing the sodium chloride, thereby achieving the crystallization of polyarylate crystal particles, but the device still has the following problems.

[0004] In the process of preparing polyarylate, it is necessary to slowly add the separation agent while stirring to make the polyarylate crystals precipitate. The circulating desalination device for the production of polyarylate directly adds the mixed solution of polyarylate colloid and separation agent, which cannot slowly and stably add the polyarylate colloid. At the same time, the hot water impact and the rotation of the cleaning drum itself may not be able to make the crystals of the polyarylate crystal particles blocked in the micropores separate from the surface of the micropores, causing blockage.

[0005] Based on this, the utility model designs a circulating high-efficiency desalination device for polyarylate production to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a circulating high-efficiency desalination device for polyarylate production.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A circulating high-efficiency desalination device for polyarylate production comprises a base and a feed box, an operation box and a collection box fixedly mounted on the upper side of the base, wherein the feed box is located on the upper side of the operation box and the collection box is located on the left side of the operation box;

[0009] The working box is divided into a first chamber, a third chamber and a second chamber from top to bottom. The lower end of the third chamber is connected to the second chamber through a stop valve. A drum is arranged in the third chamber. The outer wall of the drum is provided with micropores and a discharge door for taking materials. A water supply pipe, an exhaust pipe and a second discharge door are fixedly installed on the side wall of the working box. The water supply pipe and the exhaust pipe are connected to the first chamber, and the second discharge door is connected to the third chamber.

[0010] The feed box is divided into a first feed bin for storing polyarylate refined glue and a second feed bin for storing heating separation agent by a baffle, and the first feed bin and the second feed bin are both provided with discharge ports at their lower ends, and both discharge ports are fixedly connected to feed pipes, and the two feed pipes extend into the interior of the drum, and the lower ends of the feed pipes inside the drum are provided with feed ports, and a pressing valve is fixedly installed on the feed pipe below the first feed bin, and an adjustable synchronous blanking mechanism for cooperating with the pressing valve is installed between the feed box and the operation box;

[0011] A rotating vibration mechanism and a driving mechanism are installed on the base. The driving mechanism is used to drive the rotating vibration mechanism and the adjustable synchronous blanking mechanism. The rotating vibration mechanism is connected to the roller.

[0012] Furthermore, the rotating vibration mechanism includes a rotating shaft, a spring, a movable block, a rotating joint, a bracket and a slot; the bracket is fixedly installed on the upper side of the base and is symmetrical about the front and back of the working box, and a slot for storing the movable block and the spring is opened on the bracket. The spring is symmetrical about the movable block from top to bottom, one end of the spring is fixedly connected to the movable block, the other end of the spring is fixedly connected to the bracket, and the movable block is limitedly and slidably connected to the bracket; the rotating shaft is fixedly connected to the roller and passes through the front end of the roller, one end of the rotating shaft passes through the movable block and is connected to the driving mechanism, the other end of the rotating shaft is rotatably connected to the rotating joint, the rotating shaft is rotatably connected to the movable block on the front side of the working box, and the rotating joint is fixedly connected to the feed pipe.

[0013] Furthermore, an eccentric block is fixedly mounted on the outer wall of the rotating shaft.

[0014] Furthermore, the movable block at the rear side of the working box is fixedly connected to the feeding pipe via a telescopic hose.

[0015] Furthermore, the adjustable synchronous blanking mechanism includes a rotating rod, a rotating disk, a cam block and an adjusting assembly; one end of the rotating rod is connected to the driving mechanism, and the other end of the rotating rod is fixedly connected to the rotating disk. The rotating rod is rotatably installed on the base, and a plurality of cam blocks for impacting the pressing valve are rotatably installed on the upper end of the upper rotating disk, and an adjusting assembly is installed on the upper end of the cam block.

[0016] Furthermore, the plurality of cam blocks are distributed in a circular array at equal intervals.

[0017] Furthermore, the adjustment assembly includes a fixing groove, a fixing screw and a locking nut. A fixing groove is opened at the upper end of the cam block. The fixing screw is fixedly installed on the rotating disk and is located inside the fixing groove. The fixing screw is threadedly connected with the locking nut. The cam block is located between the fixing screw and the locking nut.

[0018] Furthermore, the driving mechanism includes a motor, a transmission assembly and a coupling; the motor is fixedly mounted on the upper side of the base, the output end of the motor is fixedly connected to the rotating rod through the transmission assembly, the output end of the motor is fixedly connected to the coupling, and the coupling is fixedly connected to the rotating shaft.

[0019] Furthermore, the coupling is a belt flexible coupling.

[0020] Furthermore, the transmission assembly adopts a bevel gear transmission structure.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] In the utility model, the adjustable synchronous blanking mechanism and the rotary vibration mechanism are driven by a driving mechanism to run synchronously, which ensures synchronization. At the same time, the rotary vibration mechanism is used to prevent the polyarylate refined glue liquid from agglomerating and blocking micropores when it is converted into polyarylate particle crystals after desalting, thereby solving the blockage problem of the existing polyarylate crystal particles being easily bonded into blocks. The adjustable synchronous blanking mechanism makes the total amount of polyarylate refined glue liquid added to the drum controllable.

[0023] In the utility model, centrifugal force is generated by the rotation of the eccentric block, which drives the drum to rotate as a whole and move up and down at the same time, so that the polyarylate refined glue solution will not agglomerate when it is converted into polyarylate particle crystals after desalting, thus solving the problem that the existing polyarylate crystal particles are easy to stick together. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 The utility model is a three-dimensional high-efficiency desalination device for the production of polyarylate Figure 1 ;

[0026] Figure 2 This is a right view of a circulating high-efficiency desalination device for polyarylate production according to the utility model;

[0027] Figure 3The utility model is a three-dimensional high-efficiency desalination device for the production of polyarylate Figure 2 ;

[0028] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0029] Figure 5 for Figure 3 The enlarged view of point B in the middle;

[0030] Figure 6 It is a structural schematic diagram of the work box of the utility model;

[0031] Figure 7 It is a structural schematic diagram of the driving mechanism of the utility model.

[0032] The numbers in the figure represent:

[0033] 10. Base; 20. Feed box; 21. First feed bin; 22. Second feed bin; 24. Feed pipe; 25. Press valve; 26. Feed port; 30. Work box; 31. First chamber; 32. Second chamber; 33. Roller; 34. Third chamber; 35. Micropore; 36. Water supply pipe; 37. Exhaust pipe; 38. Discharge door; 39. Discharge door 2; 40. Drive mechanism; 41. Motor; 42 , driving gear; 43, driven gear; 44, coupling; 50, rotary vibration mechanism; 51, rotating shaft; 52, eccentric block; 53, spring; 54, movable block; 55, rotary joint; 56, bracket; 57, notch; 60, adjustable synchronous blanking mechanism; 61, rotating rod; 62, rotating disk; 63, cam block; 64, fixing groove; 65, fixing screw; 66, locking nut; 70, collection box. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] The “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the right view.

[0036] Embodiment 1

[0037] In some embodiments, please refer to the attached instructions. Figure 1-7A circulating high-efficiency desalination device for polyarylate production includes a base 10 and a feed box 20, a work box 30 and a collection box 70 fixedly installed on the upper side of the base 10. The feed box 20 is located on the upper side of the work box 30, and the collection box 70 is located on the left side of the work box 30.

[0038] The working box 30 is divided into a first chamber 31, a third chamber 34 and a second chamber 32 from top to bottom. The lower end of the third chamber 34 is connected to the second chamber 32 through a stop valve. A roller 33 is provided in the third chamber 34. The outer wall of the roller 33 is provided with micropores 35 and a discharge door 38 for taking materials. A water supply pipe 36, an exhaust pipe 37 and a second discharge door 39 are fixedly installed on the side wall of the working box 30. The water supply pipe 36 and the exhaust pipe 37 are connected to the first chamber 31, and the second discharge door 39 is connected to the third chamber 34.

[0039] The feed box 20 is divided into a first feed bin 21 for storing polyarylate refined glue and a second feed bin 22 for storing heating separation agent by a baffle. The first feed bin 21 and the second feed bin 22 are both provided with discharge ports at their lower ends. Both discharge ports are fixedly connected to a feed pipe 24. The two feed pipes 24 extend into the interior of the drum 33. A feed port 26 is provided at the lower end of the feed pipe 24 inside the drum 33. A pressing valve 25 is fixedly installed on the feed pipe 24 below the first feed bin 21. An adjustable synchronous blanking mechanism 60 for cooperating with the pressing valve 25 is installed between the feed box 20 and the operation box 30.

[0040] The base 10 is provided with a rotational vibration mechanism 50 and a driving mechanism 40 . The driving mechanism 40 is used to drive the rotational vibration mechanism 50 and the adjustable synchronous blanking mechanism 60 . The rotational vibration mechanism 50 is connected to the roller 33 .

[0041] In the present invention, the stop valve at the lower end of the third chamber 34 is closed to add the heating separation agent into the drum 33 through the feeding pipe 24, the addition of the heating separation agent is stopped, the driving mechanism 40 is started to drive the adjustable synchronous blanking mechanism 60 to slowly add the polyarylate refined glue solution into the drum 33,

[0042] At the same time, the rotating vibration mechanism 50 is driven to drive the drum 33 to rotate as a whole and shake up and down, and hot water is injected into the first chamber 31 from the water supply pipe 36. The hot water flows to the surface of the drum 33 through the third chamber 34, and flows into the inside of the drum 33 through the micropores 35 on the surface of the drum 33 to promote the evaporation of the separation agent into halogenated hydrocarbon vapor. At the same time, because sodium chloride is easily soluble in water, it absorbs sodium chloride in the polyarylate refined glue to achieve a desalting effect. When the solution in the third chamber 34 reaches two-thirds of the third chamber 34, the stop valve is opened to let the hot water in the drum 33 slide into the second chamber 32, and the hot water in the second chamber 32 is recovered by the water pump through the heating jacket The reheated water flows into the drum 33 from the top of the first chamber 31. As the hot water of the first chamber 31 is continuously poured in and the second chamber 32 continuously recovers the falling hot water, it is ensured that more than half of the drum 33 is filled. At the same time, the drum 33 is continuously turned over and shaken up and down as a whole under the action of the driving mechanism 40, so as to achieve the purpose of cleaning the refined polyarylate glue and preventing the polyarylate particles from crystallizing and agglomerating; the evaporated halogenated hydrocarbon vapor flows into the collection box 70 through the exhaust pipe 37 under the action of the cooling jacket arranged outside the exhaust pipe 37; after all the halogenated hydrocarbons are evaporated, the driving mechanism 40 is closed, and the discharge door 2 39 and the discharge door 38 are opened to take out the polyarylate particle crystals inside the drum 33.

[0043] In the utility model, the adjustable synchronous blanking mechanism 60 and the rotary vibration mechanism 50 are driven by the driving mechanism 40 to run synchronously, and while ensuring synchronization, the rotary vibration mechanism 50 makes the polyarylate refined glue liquid desalted and converted into polyarylate particle crystals without agglomeration and clogging the micropores 35, thereby solving the clogging problem of the existing polyarylate crystal particles being easily adhered to each other, and the total amount of the polyarylate refined glue liquid added to the drum 33 can be controlled by the adjustable synchronous blanking mechanism 60.

[0044] The rotary vibration mechanism 50 includes a rotating shaft 51, an eccentric block 52, a spring 53, a movable block 54, a rotary joint 55, a bracket 56 and a notch 57; the bracket 56 is fixedly mounted on the upper side of the base 10 and is symmetrical about the front and rear of the work box 30, and a notch 57 for storing the movable block 54 and the spring 53 is provided on the bracket 56. The spring 53 is symmetrical about the movable block 54 from top to bottom, one end of the spring 53 is fixedly connected to the movable block 54, and the other end of the spring 53 is fixedly connected to the bracket 56, and the movable block 54 is limitedly slidably connected to the bracket 56; the rotating shaft 51 is fixedly connected to the drum 33 and passes through the front end of the drum 33, one end of the rotating shaft 51 passes through the movable block 54 and is connected to the driving mechanism 40, the other end of the rotating shaft 51 is rotatably connected to the rotating joint 55, an eccentric block 52 is fixedly installed on the outer wall of the rotating shaft 51, and the rotating joint 55 and the eccentric block 52 are both located inside the drum 33, the rotating shaft 51 is rotatably connected to the movable block 54 on the front side of the working box 30, the rotating joint 55 is fixedly connected to the feeding pipe 24, and the movable block 54 on the rear side of the working box 30 is fixedly connected to the feeding pipe 24 through a telescopic hose.

[0045] In the utility model, the driving mechanism 40 is started to drive the adjustable synchronous blanking mechanism 60 to slowly add the polyarylate refined glue into the drum 33. At the same time, the rotating shaft 51 starts to rotate to drive the eccentric block 52 to rotate. The rotation of the eccentric block 52 generates centrifugal force to drive the drum 33 to shake as a whole. The shaking of the rotating shaft 51 drives the movable block 54 to move up and down under the limiting action of the bracket 56 and the spring 53, thereby driving the drum 33 to rotate as a whole and move up and down at the same time.

[0046] In the utility model, the centrifugal force is generated by the rotation of the eccentric block 52, which drives the drum 33 to rotate as a whole and move up and down at the same time, so that the polyarylate refined glue will not agglomerate when it is converted into polyarylate particles after desalting, thus solving the problem that the existing polyarylate crystal particles are easy to stick together.

[0047] Embodiment 2

[0048] In some embodiments, Figure 5 and Figure 7 As shown, as a preferred embodiment of the utility model, the adjustable synchronous blanking mechanism 60 includes a rotating rod 61, a rotating disk 62, a cam block 63 and an adjusting component, and the adjusting component includes a fixing groove 64, a fixing screw 65 and a locking nut 66; one end of the rotating rod 61 is connected to the driving mechanism 40, and the other end of the rotating rod 61 is fixedly connected to the rotating disk 62, the rotating rod 61 is rotatably mounted on the base 10, and a plurality of cam blocks 63 for impacting the pressing valve 25 are rotatably mounted at equal intervals on the upper end of the rotating disk 62, a fixing groove 64 is opened at the upper end of the cam block 63, the fixing screw 65 is fixedly mounted on the rotating disk 62 and is located inside the fixing groove 64, the fixing screw 65 is threadedly connected to the locking nut 66, and the cam block 63 is located between the fixing screw 65 and the locking nut 66.

[0049] In the present invention, the cam block 63 is rotated and adjusted to control the number and area of ​​the excess of the rotating disk 62, the locking nut 66 is tightened to lock the cam block 63 through the fixing screw 65 and the locking nut 66, the driving mechanism 40 is started to drive the rotating rod 61 to rotate, the rotating rod 61 rotates to drive the cam block 63 to rotate synchronously, and the cam block 63 rotates while hitting the pressing valve 25 to control the indirect falling rate of the polyarylate refined glue liquid inside the first feeding bin 21. By rotating and adjusting the cam block 63 to control the number and area of ​​the excess of the rotating disk 62, and controlling the frequency and duration of the cam block 63 hitting the pressing valve 25, quantitative control of the slow addition of the polyarylate refined glue liquid into the drum 33 is achieved.

[0050] Embodiment 3

[0051] In some embodiments, Figure 7As shown, as a preferred embodiment of the utility model, the driving mechanism 40 includes a motor 41, a driving gear 42, a driven gear 43 and a coupling 44; the motor 41 is fixedly mounted on the upper side of the base 10, the output end of the motor 41 is fixedly mounted with the driving gear 42, the driving gear 42 is meshed and connected with the driven gear 43, the driven gear 43 is fixedly connected to the rotating rod 61, the output end of the motor 41 is fixedly connected to the coupling 44, the coupling 44 is fixedly connected to the rotating shaft 51, and the coupling 44 adopts a belt flexible coupling.

[0052] In the present invention, the starting motor 41 drives the driven gear 43 to rotate through the driving gear 42, and the driven gear 43 drives the rotating rod 61 to rotate, and the motor 41 drives the coupling 44 to rotate synchronously, and the coupling 44 drives the rotating shaft 51 to rotate. It is achieved that the same driving motor 41 drives the roller 33 to rotate, and synchronously drives the cam block 63 to rotate to hit the pressing valve 25 to control the indirect falling rate of the polyarylate refined glue solution, so that the two are kept in a synchronous state.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A circulating high-efficiency desalination device for producing polyarylate, comprising a base (10) and a feed box (20), a work box (30) and a collection box (70) fixedly mounted on the upper side of the base (10), wherein the feed box (20) is located on the upper side of the work box (30), and the collection box (70) is located on the left side of the work box (30), characterized in that: The working box (30) is divided into a first chamber (31), a third chamber (34) and a second chamber (32) from top to bottom. The lower end of the third chamber (34) is connected to the second chamber (32) through a stop valve. A roller (33) is arranged in the third chamber (34). The outer wall of the roller (33) is provided with micropores (35) and a discharge door (38) for taking materials. A water supply pipe (36), an exhaust pipe (37) and a second discharge door (39) are fixedly installed on the side wall of the working box (30). The water supply pipe (36) and the exhaust pipe (37) are connected to the first chamber (31), and the second discharge door (39) is connected to the third chamber (34). The feed box (20) is divided into a first feed bin (21) for storing polyarylate refined glue and a second feed bin (22) for storing heating separation agent by a baffle. The first feed bin (21) and the second feed bin (22) are provided with discharge ports at their lower ends. Both discharge ports are fixedly connected to a feed pipe (24). The two feed pipes (24) extend into the interior of the drum (33). A feed port (26) is provided at the lower end of the feed pipe (24) inside the drum (33). A pressing valve (25) is fixedly installed on the feed pipe (24) below the first feed bin (21). An adjustable synchronous blanking mechanism (60) for cooperating with the pressing valve (25) is installed between the feed box (20) and the operation box (30); A rotating vibration mechanism (50) and a driving mechanism (40) are mounted on the base (10); the driving mechanism (40) is used to drive the rotating vibration mechanism (50) and the adjustable synchronous blanking mechanism (60); and the rotating vibration mechanism (50) is connected to the roller (33).

2. The circulating high-efficiency desalination device for polyarylate production according to claim 1, characterized in that: The rotating vibration mechanism (50) comprises a rotating shaft (51), a spring (53), a movable block (54), a rotating joint (55), a bracket (56) and a notch (57); the bracket (56) is fixedly mounted on the base (10). The bracket (56) is symmetrical with respect to the upper side of the working box (30), and a notch (57) for storing the movable block (54) and the spring (53) is provided on the bracket (56), and the spring (53) is symmetrical with respect to the movable block (54) in the upper and lower sides, and one end of the spring (53) is fixedly connected to the movable block (54), and the other end of the spring (53) is fixedly connected to the bracket (56), and the movable block (54) is limitedly slidably connected to the bracket (56); the rotating shaft (51) is fixedly connected to the roller (33) and passes through the front end of the roller (33), one end of the rotating shaft (51) passes through the movable block (54) and is connected to the driving mechanism (40), and the other end of the rotating shaft (51) is rotatably connected to the rotating joint (55), the rotating shaft (51) is rotatably connected to the movable block (54) on the front side of the working box (30), and the rotating joint (55) is fixedly connected to the feeding pipe (24).

3. The circulating high-efficiency desalination device for polyarylate production according to claim 2, characterized in that: An eccentric block (52) is fixedly mounted on the outer wall of the rotating shaft (51).

4. The circulating high-efficiency desalination device for polyarylate production according to claim 3, characterized in that: The movable block (54) at the rear side of the working box (30) is fixedly connected to the feeding pipe (24) via a telescopic hose.

5. The circulating high-efficiency desalination device for polyarylate production according to claim 4, characterized in that: The adjustable synchronous blanking mechanism (60) comprises a rotating rod (61), a rotating disk (62), a cam block (63) and an adjusting assembly; one end of the rotating rod (61) is connected to the driving mechanism (40), and the other end of the rotating rod (61) is fixedly connected to the rotating disk (62); the rotating rod (61) is rotatably mounted on the base (10); a plurality of cam blocks (63) for impacting the pressing valve (25) are rotatably mounted on the upper end of the upper rotating disk (62); and the adjusting assembly is mounted on the upper end of the cam block (63).

6. The circulating high-efficiency desalination device for polyarylate production according to claim 5, characterized in that: The plurality of cam blocks (63) are distributed in a circular array at equal intervals.

7. The circulating high-efficiency desalination device for polyarylate production according to claim 6, characterized in that: The adjustment assembly comprises a fixing groove (64), a fixing screw (65) and a locking nut (66); the upper end of the cam block (63) is provided with a fixing groove (64); the fixing screw (65) is fixedly mounted on the rotating disk (62) and is located inside the fixing groove (64); the fixing screw (65) is threadedly connected to the locking nut (66); and the cam block (63) is located between the fixing screw (65) and the locking nut (66).

8. The circulating high-efficiency desalination device for polyarylate production according to claim 7, characterized in that: The driving mechanism (40) comprises a motor (41), a transmission assembly and a coupling (44); the motor (41) is fixedly mounted on the upper side of the base (10); the output end of the motor (41) is fixedly connected to the rotating rod (61) through the transmission assembly; the output end of the motor (41) is fixedly connected to the coupling (44); and the coupling (44) is fixedly connected to the rotating shaft (51).

9. The circulating high-efficiency desalination device for producing polyarylate according to claim 8, characterized in that: The coupling (44) is a belt flexible coupling.

10. The circulating high-efficiency desalination device for producing polyarylate according to claim 9, characterized in that: The transmission assembly adopts a bevel gear transmission structure.

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