Polysulfone polymer production system

Abstract

The utility model discloses a polysulfone polymer production system and relates to the technical field of chemical production equipment. The polysulfone polymer production system comprises a reaction kettle, a filter and a rotary packed bed, a feed port of the filter is connected with a discharge port at the bottom of the reaction kettle, a first filtrate extraction pipe and a second filtrate extraction pipe are arranged at the bottom of the filter, and a discharge end of the second filtrate extraction pipe is connected with a return port at the top of the reaction kettle; a feeding hole in the top of the rotating packed bed is connected with the first filtrate extraction pipe, a rotor of the rotating packed bed is provided with an accommodating cavity, and a discharging hole in the bottom of the rotating packed bed is connected with the material returning hole. According to the technical scheme provided by the utility model, the solid alkali is filled on the rotor of the rotating packed bed, and the liquid-phase mixture is placed in the reaction kettle, so that the use amount of a solvent can be effectively reduced, the concentration of the liquid-phase mixture is improved, the reaction time is shortened, and the cost is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chemical production equipment, especially relates to a polysulfone polymer production system. BACKGROUND

[0002] Polysulfone polymer as a kind of special polymer material, due to its good chemical stability, excellent heat resistance and stable mechanical properties, thus be widely used in aerospace, food and medical equipment and other fields.

[0003] At present, the commonly used production equipment of polysulfone polymer is reaction kettle, when preparing, solid raw material, solid base catalyst and solvent are added into reaction kettle, target viscosity polymerization reactant is prepared by controlling temperature and stirring speed, the polysulfone product is prepared by diluting, filtering, crushing, washing, drying and granulating polymerization reactant.

[0004] In the existing reaction kettle, solid raw material is dissolved in solvent, and solid base catalyst remains solid, reaction system forms solid-liquid two-phase reaction system, in order to improve reaction effect, the particle size of catalyst in two-phase reaction system is better and thinner, and the particle size of catalyst used in polymerization system is thinner, which increases the difficulty of filtering equipment in post-processing section. UTILITY MODEL CONTENT

[0005] The utility model discloses a polysulfone polymer production system, which aims to solve the problem that the particle size of solid base catalyst is required to be high in the existing production equipment, and the difficulty of filtering equipment in post-processing section is increased.

[0006] To achieve the above object, the utility model provides a polysulfone polymer production system, which comprises:

[0007] Reaction kettle, the upper portion of which is provided with a nitrogen inlet, a first inlet and a return port, and the bottom is provided with a working fluid outlet pipe, and a heating device is arranged on the reaction kettle;

[0008] Filter, the second inlet of the upper portion of which is connected with the discharge end of the working fluid outlet pipe, and the bottom of the filter is provided with a first filtrate outlet pipe and a second filtrate outlet pipe, and control valves are arranged on the first filtrate outlet pipe and the second filtrate outlet pipe, and the discharge end of the second filtrate outlet pipe is connected with the return port;

[0009] Rotary packed bed, comprising a third shell and a third rotor arranged in the third shell, the third rotor is provided with a containing cavity in communication with the inner cavity of the third shell, the top of the third shell is provided with a third inlet connected with the discharge end of the first filtrate outlet pipe, and the bottom is provided with a salt-forming material outlet pipe connected with the return port.

[0010] In an embodiment, the rotating packed bed is located above the reactor, and the filter is located above the rotating packed bed; and / or,

[0011] A circulating pump is arranged on the working fluid production pipe.

[0012] In an embodiment, the polysulfone polymer production system further comprises a salt-forming gas discharge section, the salt-forming gas discharge section comprising a first cooler, and a gas-liquid separator connected to the first cooler;

[0013] The feed inlet of the first cooler is connected to the third exhaust port at the top of the third shell through a pipeline.

[0014] In an embodiment, the first cooler is located above the rotating packed bed, and the gas-liquid separator is located between the first cooler and the rotating packed bed.

[0015] An exhaust pipe is arranged at the top of the gas-liquid separator, and a return pipe connected to the return port is arranged at the bottom of the gas-liquid separator.

[0016] In an embodiment, a carbon dioxide detector is arranged on the exhaust pipe.

[0017] In an embodiment, the third rotor is a hollow structure in the shape of a circular ring, the hollow structure forms the containing cavity, a through hole is arranged on the third rotor and communicates with the containing cavity, and a wire mesh is arranged on the through hole.

[0018] In an embodiment, the third rotor is a plurality of third rotors, and the plurality of third rotors are arranged along the axial direction of the third shell.

[0019] In an embodiment, the polysulfone polymer production system further comprises a polymerization gas discharge section, the polymerization gas discharge section comprising a separation gravity bed arranged above the reactor, a fourth feed inlet at the bottom of the separation gravity bed is connected to a first exhaust port at the top of the reactor through a pipeline, and a fourth exhaust port is arranged at the top of the separation gravity bed.

[0020] In an embodiment, the polymerization gas discharge section further comprises a second cooler, a reflux controller, and a liquid storage tank, the second cooler is arranged above the separation gravity bed, a feed inlet of the second cooler is connected to the fourth exhaust port through a pipeline, and a discharge outlet of the second cooler is connected to a feed end of the reflux controller through a pipeline.

[0021] A reflux pipe and a discharge pipe are arranged at the discharge end of the reflux controller, the liquid storage tank is connected to a discharge end of the discharge pipe, and a discharge end of the reflux pipe is connected to a reflux port at the top of the separation gravity bed.

[0022] In an embodiment, a stirring device is arranged in the reaction kettle, and a material discharge port is arranged at the bottom of the reaction kettle.

[0023] In the technical scheme, the bisphenol monomer, 4,4'-dichlorodiphenyl sulfone and solvent are added into the reaction kettle, the solid base is filled in the containing cavity, so that the liquid phase mixture is formed in the reaction kettle, and the solid phase is formed in the rotating packed bed, the liquid phase in the reaction kettle is heated and treated, and then is sent into the rotating packed bed, the high-speed rotation of the rotor is controlled, a large shear force is generated, the liquid phase is formed in the form of liquid filaments or liquid droplets, the liquid-solid two-phase mass transfer efficiency is improved, the bisphenol monomer in the liquid phase can be sufficiently reacted with the solid base to generate a salt, and the reaction speed is also improved, so that the reaction time is shortened. The bisphenol salt generated in the rotating packed bed flows back to the reaction kettle, and the heated material in the reaction kettle continuously flows into the salt-forming rotating packed bed to participate in the salt-forming reaction, so that the material circulates between the reaction kettle and the rotating packed bed until the salt-forming reaction is completed. The material in the reaction kettle after the salt-forming reaction is heated to a polymerization temperature, so that the material after the salt-forming further generates a polymerization reaction to generate a polymer, and the material after the polymerization reaction flows back to the reaction kettle through a filter, so that the material circulates between the reaction kettle and the filter until the viscosity of the material in the reaction kettle reaches a target value, and the polymerization reaction is completed. The material after the polymerization reaction is completed is taken out and subjected to post-treatment, and a polysulfone polymer product is obtained.

[0024] In the technical scheme, the solid base is filled on the rotor of the rotating packed bed, and the liquid phase mixture is placed in the reaction kettle, so that the amount of solvent can be effectively reduced, the concentration of the liquid phase mixture is improved, the reaction time can be further shortened, and the cost is also reduced. Since the solid base is arranged on the rotor, the particle size of the solid base catalyst is not required to be too high, and the filtration treatment is performed in the polymerization reaction process to filter out by-products such as solid salt, the filtration treatment is taken as a link of the polymerization reaction circulation section, the filtration is facilitated, the filtration difficulty is reduced, and the dilution step in the post-treatment stage is omitted, so that the production cycle is shortened. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings required to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0026] Figure 1 The structure schematic diagram of an embodiment of the polysulfone polymer production system provided by the present application is shown in the figure.

[0027] Figure 2 Fig. 1 is a structural schematic view of a third rotor in the application. Figure 1 Fig. 1 is a structural schematic view of a third rotor in the application.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1, reactor; 11, nitrogen inlet; 12, first feed inlet; 13, return port; 14, material outlet; 15, working liquid outlet pipe; 16, circulating pump; 17, heating device; 18, stirring device; 19, first exhaust port; 2, filter; 21, first filtrate outlet pipe; 22, second filtrate outlet pipe; 23, control valve; 24, second feed inlet; 3, rotating packed bed; 31, third housing; 32, third rotor; 321, containing cavity; 322, through hole; 323, wire mesh; 33, third feed inlet; 34, rotating shaft; 35, third exhaust port; 36, salted material outlet pipe; 4, first cooler; 5, gas-liquid separator; 51, exhaust pipe; 52, return pipe; 6, separation gravity bed; 61, fourth housing; 62, fourth rotor; 63, fourth feed inlet; 64, fourth exhaust port; 65, return port; 7, second cooler; 8, reflux controller; 81, discharge pipe; 82, reflux pipe; 9, liquid storage tank.

[0030] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0032] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] Please see Figure 1 and Figure 2 This utility model provides a polysulfone polymer production system, including: a reactor 1, a filter 2, and a rotating packed bed 3. The reactor 1 has a nitrogen inlet 11, a first feed inlet 12, and a return inlet 13 at its upper part. A working fluid outlet pipe 15 is located at the bottom of the reactor 1. A heating device 17 is installed on the reactor 1. The filter 2 has a second feed inlet 24 at its upper part, which is connected to the outlet end of the working fluid outlet pipe 15. A first filtrate outlet pipe 21 and a second filtrate outlet pipe 22 are located at the bottom of the filter 2. Both the first filtrate collection pipe 21 and the second filtrate collection pipe 22 are equipped with control valves 23. The discharge end of the second filtrate collection pipe 22 is connected to the return port 13. The rotating packing bed 3 includes a third housing 31 and a third rotor 32 disposed in the third housing 31. The third rotor 32 is provided with a receiving cavity 321 that communicates with the inner cavity of the third housing 31. The top of the third housing 31 is provided with a third inlet 33 that is connected to the discharge end of the first filtrate collection pipe 21. The bottom of the third housing 31 is provided with a salt-forming material collection pipe 36 that is connected to the return port 13.

[0035] In this invention, bisphenol monomer, 4,4'-dichlorodiphenyl sulfone, and solvent are added to reactor 1 through the first feed port 12. Solid alkali is filled into the receiving cavity 321. Nitrogen gas enters reactor 1 through nitrogen inlet 11, ensuring the entire system is under nitrogen protection. Heating device 17 is activated to heat the materials in reactor 1. When the temperature reaches 80–100°C, it is maintained for 20–40 minutes. Stirring is performed during heating and maintaining the temperature to ensure the bisphenol monomer and 4,4'-dichlorodiphenyl sulfone are fully dissolved in the solvent, forming a liquid mixture. The liquid mixture in reactor 1 is further heated and stirred until it reaches 120–150°C.

[0036] The control valve 23 on the first filtrate collection pipe 21 is in the open state, and the control valve 23 on the second filtrate collection pipe 22 is in the closed state. The mixture with a temperature of 120-150℃ in the reactor 1 is sent into the filter 2 through the working fluid collection pipe 15. The filtrate obtained after filtration is sent into the rotating packed bed 3 through the first filtrate collection pipe 21. The third rotor 32 is controlled to rotate at a speed of 1000-3000 r / min. The high-speed rotation of the rotor generates a large shear force, which breaks the liquid phase mixture into fine liquid filaments and droplets, effectively improving the liquid-solid two-phase mass transfer efficiency, increasing the reaction rate, and shortening the reaction time. This allows the bisphenol monomer in the mixture to react more fully with the solid alkali to form bisphenol salt. The material after the salt formation reaction in the rotating packed bed 3 is collected through the salt material collection pipe 36 and returned to the reactor 1. The temperature of the material in the reactor 1 is controlled at 120-150℃. The heated material in the reactor 1 is sent to the filter 2, filtered, and then sent back to the rotating packed bed 3, and then returned to the reactor 1. This cycle continues until the salt formation reaction is completed.

[0037] After the salt formation reaction is completed, the control valve 23 on the first filtrate collection pipe 21 is closed, while the control valve 23 on the second filtrate collection pipe 22 is open. The material after the salt formation reaction in the reactor 1 is heated, and stirring is carried out during the heating process, so that the material after the salt formation reaction in the reactor 1 is heated to 160-230°C, so that the bisphenol salt and 4,4'-dichlorodiphenyl sulfone undergo polymerization to form a polymer. The material after the polymerization reaction is sent to the filter 2. The filtrate obtained after filtration is collected through the second filtrate collection pipe 22 and returned to the reactor 1. The temperature of the material in the reactor 1 is controlled at 160-230°C. The material after the salt formation reaction in the reactor 1 undergoes polymerization reaction. The material after polymerization reaction in the reactor 1 is sent to the filter 2. After filtration, it is returned to the reactor 1. This cycle continues until the viscosity of the material in the reactor 1 reaches the target viscosity (2000-10000 mPa·s), and the polymerization reaction ends.

[0038] The material after polymerization in reactor 1 is taken out and post-processed, including crushing, washing, drying and granulation, to obtain polysulfone polymer products.

[0039] Understandably, the entire system operates under nitrogen protection throughout the production process. The filter pores in filter 2 have a mesh size of 200-300 mesh. A stirring device 18 is installed inside reactor 1, and a material outlet 14 is located at the bottom of reactor 1 to remove the polymerized material. Control valves are installed on both the first feed inlet 12 and the material outlet 14. The corresponding control valves are opened when feeding or removing the product, and closed after feeding or when product removal is not required. A viscosity detection device is installed inside reactor 1 to monitor in real time whether the viscosity of the polymerized material in reactor 1 reaches the target value. The solvent can be one of dimethyl sulfoxide, N,N-dimethylformamide, N,N-dimethylacetamide, and N-methylpyrrolidone; the bisphenol monomer can be one of bisphenol A, bisphenol S, and hydroquinone. The amount of bisphenol monomer used is 160-185 kg, the amount of 4,4'-dichlorodiphenyl sulfone used is 200-215 kg, the amount of solid alkali used is 80-90 kg, and the amount of solvent used is 500-600 L.

[0040] Furthermore, the rotating packed bed 3 is located above the reactor 1, and the filter 2 is located above the rotating packed bed 3; a circulation pump 16 is installed on the working fluid collection pipe 15.

[0041] By adopting the above technical solution, the circulating pump 16 is used to circulate the materials during the salt formation reaction stage and the polymerization reaction stage, thereby achieving better product production. The filter 2 is located above the rotating packed bed 3 so that the filtrate can flow back to the rotating packed bed 3 smoothly during the salt formation reaction stage; the rotating packed bed 3 is located above the reactor 1 so that the material after the salt formation reaction in the rotating packed bed 3 can flow back to the reactor 1 smoothly during the salt formation reaction stage.

[0042] Furthermore, the polysulfone polymer production system also includes a salt-forming gas emission section, which includes a first cooler 4 and a gas-liquid separator 5 connected to the first cooler 4; the feed inlet of the first cooler 4 is connected to the third exhaust port 35 at the top of the third housing 31 via a pipe.

[0043] Specifically, the first cooler 4 is located above the rotating packed bed 3, and the gas-liquid separator 5 is located between the first cooler 4 and the rotating packed bed 3; the top of the gas-liquid separator 5 is provided with an exhaust pipe 51, and the bottom is provided with a return pipe 52 connected to the return port 13.

[0044] By adopting the above technical solution, the solid alkali is sodium carbonate or potassium carbonate. The carbon dioxide gas and a small amount of solvent generated during the salt formation reaction are discharged through the third exhaust port 35. After being cooled by the first cooler 4, they enter the gas-liquid separator 5. The separated carbon dioxide gas is discharged through the exhaust pipe 51, and the separated liquid solvent is returned to the reaction vessel 1 through the return pipe 52 to ensure the amount of solvent used in the reaction system.

[0045] Understandably, a carbon dioxide detector is installed on the exhaust pipe 51 to detect in real time whether carbon dioxide gas is generated in the rotating packed bed 3. When carbon dioxide gas is no longer discharged from the rotating packed bed 3, the salt formation reaction ends.

[0046] Furthermore, the third housing 31 has a hollow cylindrical structure with a diameter of D1, where 850mm ≤ D1 ≤ 950mm; the third rotor 32 has a hollow annular structure forming the receiving cavity 321. The third rotor 32 has a through hole 322, in which a wire mesh 323 is disposed. The thickness of the third rotor 32 is d, and the height of the receiving cavity 321 is d0. The ring diameter is D2, the inner ring diameter is D3, 10mm≤d≤30mm, 2mm≤d0≤24mm, 800mm≤D2≤900mm, 20mm≤D3≤50mm; the aperture of the through hole 322 is 5~10mm, the aperture of the wire mesh is 200 mesh, and the particle size of the solid alkali filled in the receiving cavity 321 is 80~120 mesh; there are 5 to 7 third rotors 32, and multiple third rotors 32 are distributed along the axial direction of the third housing 31.

[0047] Understandably, the rotating packing bed 3 also includes a rotating shaft 34 rotatably mounted on the third housing. The inner ring of the third rotor 32 is mounted on the rotating shaft 34, which is connected to a drive mechanism. By driving the rotating shaft 34 to rotate, the rotor can be rotated. For all third rotors, the porosity is φ, where φ = V / V0, V is the sum of the volumes of the through holes 322 on all third rotors, and V0 is the volume of all third rotors, 0.80 ≤ φ ≤ 0.95. The distance between two adjacent third rotors 32 is H, 3mm ≤ H ≤ 5mm. The central axis of the third rotor 32 coincides with the central axis of the third housing 31.

[0048] Furthermore, the polysulfone polymer production system also includes a polymerization gas emission section, which includes a separation gravity bed 6 disposed above the reactor 1. The fourth feed port 63 at the bottom of the separation gravity bed 6 is connected to the first exhaust port 19 at the top of the reactor 1 via a pipe, and the top of the separation gravity bed 6 is provided with a fourth exhaust port 64.

[0049] By adopting the above technical solution, when the material in the reactor 1 undergoes a polymerization reaction, the generated water vapor is discharged through the first exhaust port 19. When the water vapor is discharged, it carries a small amount of solvent. The water vapor containing a small amount of solvent enters the separation gravity bed 6. The rotor of the separation gravity bed 6 rotates at a speed of 800-1000 r / min, so that the gas and liquid are separated more fully. After separation, the water vapor is discharged through the fourth exhaust port 64, and the solvent can be returned to the reactor 1 through the first exhaust port 19.

[0050] It is understood that the separation gravity bed 6 includes a fourth housing 61 and a fourth rotor 62 disposed within the fourth housing 61, wherein the distance S1 between the outer sidewall of the fourth rotor 62 and the inner sidewall of the fourth housing 61 is 40-60 mm. The fourth rotor 62 includes a corrugated plate, and the corrugated plate is provided with multiple through-hole structures to improve the gas-liquid separation effect.

[0051] It is understandable that there are multiple fourth rotors, which are mounted on a shaft. The shaft rotates, which in turn drives the fourth rotors to rotate.

[0052] Furthermore, the polymerization gas emission section also includes a second cooler 7, a reflux controller 8, and a storage tank 9. The second cooler 7 is disposed above the separation gravity bed 6, the reflux controller 8 is located between the second cooler 7 and the separation gravity bed 6, and the storage tank 9 is located below the reflux controller 8. The inlet of the second cooler 7 is connected to the fourth exhaust port 64 via a pipe, and the outlet of the second cooler 7 is connected to the inlet of the reflux controller 8 via a pipe. The outlet of the reflux controller 8 is provided with a reflux pipe 82 and a discharge pipe 81. The storage tank 9 is connected to the outlet of the discharge pipe 81, and the outlet of the reflux pipe 82 is connected to the reflux port 65 at the top of the separation gravity bed 6.

[0053] By adopting the above technical solution, the water vapor discharged through the fourth exhaust port 64 enters the second cooler 7. After being cooled, it forms liquid water. Part of the liquid water is transported to the storage tank 9 through the discharge pipe 81, and the remaining liquid water is returned to the separation gravity bed 6 through the return pipe 82 to countercurrent with the rising gas phase in the separation gravity bed 6, so as to improve the gas-liquid separation effect.

[0054] Understandably, the reflux controller 8 is designed to facilitate adjustment of the reflux ratio of liquid water according to production needs, i.e., to adjust the mass of liquid water refluxed into the separation gravity bed 6. The storage tank 9 is maintained under vacuum to allow the entry of liquid water. The third rotor 32 and the fourth rotor 62 can be made of polyetheretherketone (PEEK), or other corrosion-resistant materials can be used as needed.

[0055] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A polysulfone polymer production system, characterized in that, include: The reactor is equipped with a nitrogen inlet, a first feed inlet and a return inlet at the top, and a working fluid collection pipe at the bottom. A heating device is also provided on the reactor. The filter has a second inlet at its upper part connected to the outlet end of the working fluid collection pipe. The bottom of the filter is provided with a first filtrate collection pipe and a second filtrate collection pipe. Both the first filtrate collection pipe and the second filtrate collection pipe are provided with control valves. The outlet end of the second filtrate collection pipe is connected to the return port. A rotating packed bed includes a third housing and a third rotor disposed within the third housing. The third rotor is provided with a receiving cavity communicating with the inner cavity of the third housing. The top of the third housing is provided with a third feed port connected to the discharge end of the first filtrate collection pipe, and the bottom is provided with a salt-forming material collection pipe connected to the return port.

2. The polysulfone polymer production system as described in claim 1, characterized in that, The rotating packed bed is located above the reactor, and the filter is located above the rotating packed bed; and / or, A circulation pump is installed on the working fluid extraction pipe.

3. The polysulfone polymer production system as described in claim 1, characterized in that, The polysulfone polymer production system further includes a salt-forming gas emission section, which includes a first cooler and a gas-liquid separator connected to the first cooler. The feed inlet of the first cooler is connected to the third exhaust port at the top of the third housing via a pipe.

4. The polysulfone polymer production system as described in claim 3, characterized in that, The first cooler is located above the rotating packed bed, and the gas-liquid separator is located between the first cooler and the rotating packed bed; The gas-liquid separator is provided with an exhaust pipe at the top and a return pipe at the bottom that is connected to the return port.

5. The polysulfone polymer production system as described in claim 4, characterized in that, A carbon dioxide detector is installed on the exhaust pipe.

6. The polysulfone polymer production system as described in claim 1, characterized in that, The third rotor has a hollow annular structure, which forms the receiving cavity. The third rotor has a through hole that communicates with the receiving cavity, and a wire mesh is provided on the through hole.

7. The polysulfone polymer production system as described in claim 6, characterized in that, There are multiple third rotors, and the multiple third rotors are arranged along the axial direction of the third housing.

8. The polysulfone polymer production system as described in claim 1, characterized in that, The polysulfone polymer production system further includes a polymerization gas emission section, which includes a separation gravity bed disposed above the reactor. The fourth feed port at the bottom of the separation gravity bed is connected to the first exhaust port at the top of the reactor via a pipe, and the fourth exhaust port is disposed at the top of the separation gravity bed.

9. The polysulfone polymer production system as described in claim 8, characterized in that, The polymerization gas emission section also includes a second cooler, a reflux controller, and a storage tank. The second cooler is located above the separation gravity bed. The inlet of the second cooler is connected to the fourth exhaust port via a pipe, and the outlet of the second cooler is connected to the inlet of the reflux controller via a pipe. The reflux controller is equipped with a reflux pipe and a discharge pipe at its discharge end. The storage tank is connected to the discharge end of the discharge pipe, and the discharge end of the reflux pipe is connected to the reflux port at the top of the separation gravity bed.

10. The polysulfone polymer production system as described in claim 1, characterized in that, The reactor is equipped with a stirring device, and a material discharge port is provided at the bottom of the reactor.

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