Washing and drying equipment for polyarylene ether nitrile production

Abstract

A washing and drying device for production of polyarylene ether nitrile relates to the field of production of polyarylene ether nitrile raw materials and comprises a washing mechanism and a drying mechanism. The water washing mechanism comprises a water washing box and a circulating water washing assembly, and a gas protection assembly is arranged on the water washing box and used for introducing protective gas into the water washing box; the circulating washing assembly is used for carrying out circulating washing on the polyarylene ether nitrile product; the drying mechanism comprises a drying box arranged at the product discharging end of the washing box, and an air blower is arranged on the drying box. According to the washing and drying equipment for polyarylene ether nitrile production, through the circulating washing assembly in the washing box, PEN product particles and washing liquid are mixed and then are subjected to circulating washing, the surface of PEN makes full contact with the washing liquid, impurities on the surface of PEN are fully and rapidly washed, the washing process is reduced, the utilization rate of the washing liquid is increased, and the production efficiency is improved. And then the washed PEN particles are dried through a drying mechanism, and an ultra-high-purity PEN product is obtained.

Description

Technical Field

[0001] The invention relates to the technical field of polyarylethernitrile raw material production, in particular to a water washing and drying device for the production of polyarylethernitrile. Background Art

[0002] Polyarylethernitrile (PEN) is a high-performance thermoplastic engineering plastic. Its main molecular chain is mainly composed of aromatic rings, ether bonds (-O-) and nitrile bonds (-CN). The aromatic ring gives the material good rigidity and thermal stability, the ether bond increases the flexibility of the molecular chain, and the nitrile bond helps to improve the chemical resistance and strength of the material. This unique structural combination gives PEN a variety of excellent properties. In the processing and application of polyarylethernitrile (PEN), the water washing process is of great significance. After the PEN product is formed, some processing aids, dust, impurities and other pollutants often remain on the surface. These residues may affect the appearance, surface properties and subsequent performance of the product.

[0003] With the development of science and technology, the purity requirements for PEN products are becoming more and more stringent, especially in high-end fields such as electronics and aerospace. Traditional cleaning methods may not be able to effectively remove pollutants. In order to improve the purity of PEN products, the current water washing process requires the PEN products to be washed and filtered through a filter multiple times. The water washing process is relatively cumbersome and wastes a lot of water washing liquid. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] Therefore, the object of the present invention is to provide a water washing and drying device for the production of polyarylethernitrile, which can reduce the water washing process and improve the utilization rate of the water washing liquid.

[0006] To achieve the above-mentioned purpose, the present invention proposes a water washing and drying equipment for the production of polyarylether nitrile, comprising a water washing mechanism and a drying mechanism, wherein the water washing mechanism comprises a water washing box and a circulating water washing component, wherein the water washing box is provided with an air protection component, the air protection component is used to introduce protective gas into the water washing box, the top of the water washing box is provided with a feed inlet and a water washing liquid inlet, the circulating water washing component is used to perform circulating water washing on the polyarylether nitrile product, the circulating water washing component comprises a circulating pipe and circulating fan blades, wherein a filter screen is provided inside the water washing box, the circulating pipe is vertically penetrated and arranged on the inner side of the filter screen, the circulating fan blade is rotatably arranged on the inner side of the circulating pipe, and the drying mechanism comprises a drying box arranged at the product discharge end of the water washing box, and a blower is provided on the drying box.

[0007] Furthermore, a scraper assembly is provided on the upper surface of the filter, wherein the scraper assembly includes scraper blades and a water guide plate, wherein the top discharge end of the circulation pipe is flush with the upper surface of the filter, the water guide plate is rotatably arranged above the discharge end of the circulation pipe, and the plane where the water guide plate is located is perpendicular to the water discharge direction of the circulation pipe, and the scraper blade is arranged on the rotating edge of the water guide plate.

[0008] Furthermore, a brush is provided at the bottom of the scraper blade, the brush is in contact with the filter screen, the scraper blade is an arc-shaped structure, a second drive motor is provided above the scraper blade, and the second drive motor is connected to the scraper blade.

[0009] Furthermore, a suction port is provided at the bottom of the circulation pipe, and a first driving motor for driving the circulation fan blades to rotate is provided at the bottom of the water washing box.

[0010] Furthermore, the water washing box is divided into a filter box and a reflux box by a filter screen, the feed port and the water washing liquid port are located at the top of the filter box, and a water washing liquid outlet is provided at the bottom of the reflux box, and the air protection assembly includes a first air inlet valve and a second air inlet valve, wherein the first air inlet valve is provided at the top of the filter box, and a first exhaust valve is provided at the top of the filter box, and the second air inlet valve is provided at the top of the reflux box, and a second exhaust valve is provided at the top of the reflux box; the outlet ends of the first exhaust valve and the second exhaust valve are both provided with pressure limiting valves.

[0011] Furthermore, a solid material outlet is provided at the product discharge end of the washing box, the solid material outlet is in the same plane as the filter, a control valve is provided at the discharge end of the solid material outlet, and a sealed bearing is provided at the connection between the drying box and the control valve.

[0012] Furthermore, a drying component is provided inside the drying box, and the drying component includes a fixed cylinder, a stirring blade and a stirring motor, wherein the fixed cylinder is arranged inside the drying box, the stirring blade is rotatably arranged inside the fixed cylinder, the power shaft of the stirring motor is connected to the stirring blade, and a water grate plate is provided at the bottom of the fixed cylinder.

[0013] Furthermore, a dry material outlet is provided at the top of the drying box, a discharge valve plate is provided at the dry material outlet, a discharge valve plate controller is provided on the discharge valve plate, a water outlet is provided at the bottom of the drying box, a negative pressure pump is provided inside the water outlet, and a heater is provided at the air outlet end of the blower.

[0014] Furthermore, a drying box bracket is provided below the drying box, the drying box bracket is rotatably connected to the drying box, a rotation motor for driving the drying box to adjust a working angle is provided on the drying box bracket, and a material receiving box is provided at the bottom of the drying box bracket.

[0015] Furthermore, the feed port is provided with a feed valve plate, and the feed valve plate is provided with a feed valve plate controller.

[0016] Beneficial effects: The present invention uses a circulating water washing component in a water washing box to mix PEN product particles with a washing liquid and then circulate the water for washing. The PEN surface is fully in contact with the washing liquid, and impurities on the PEN surface are fully and quickly washed, thereby reducing the water washing process and improving the utilization rate of the washing liquid. The washed PEN particles are then dried by a drying mechanism to obtain an ultra-high purity PEN product.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the overall structure of a water-washing and drying device for producing polyarylethernitrile according to one embodiment of the present invention; Figure 2 It is a partial structural schematic diagram of a water washing and drying device for producing polyarylene ether nitrile according to one embodiment of the present invention; Figure 3 A front view of a water-washing and drying device for producing polyarylethernitrile according to one embodiment of the present invention; Figure 4 A schematic structural diagram of another perspective of a water-washing and drying device for producing polyarylethernitrile according to an embodiment of the present invention; Figure 5 It is a front cross-sectional view of a water-washing and drying device for producing polyarylethernitrile according to one embodiment of the present invention; Figure 6 The present invention is a partial structural schematic diagram of a scraper assembly in a water-washing and drying device for producing polyarylethernitrile according to an embodiment of the present invention.

[0019] In the figure: 1. water washing mechanism; 11. water washing box; 1101. water washing liquid outlet; 1102. filter box; 1103. reflux box; 12. air protection assembly; 121. first air inlet valve; 122. second air inlet valve; 123. first exhaust valve; 124. pressure limiting valve; 125. second exhaust valve; 13. feed port; 131. feed valve plate; 132. feed valve plate controller; 14. water washing liquid outlet; 15. support base; 16. solid material outlet; 17. control valve; 18. circulating water washing assembly; 181. first drive motor; 182. circulating fan blade; 183. circulating pipe; 184. suction port; 19. scraper assembly; 191. 2. Driving motor; 192. Driving rod; 193. Scraping blade; 194. Filter; 195. Filter bracket; 196. Water guide plate; 197. Conical guide head; 2. Drying mechanism; 21. Dry material outlet; 211. Discharge valve plate controller; 212. Discharge valve plate; 22. Blower; 221. Heater; 23. Guide bucket; 24. Corner motor; 25. Drying box; 251. Sealed bearing; 252. Balance block; 252. Water outlet; 253. Negative pressure pump; 26. Drying box bracket; 27. Material receiving box; 28. Drying assembly; 281. Fixed cylinder; 282. Stirring blade; 283. Water grate plate; 284. Stirring motor. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] The water washing and drying equipment for producing poly(arylene ether nitrile) according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0022] like Figure 2-Figure 5 As shown, the water washing and drying equipment for producing polyarylethernitrile provided in an embodiment of the present invention comprises a water washing mechanism 1 and a drying mechanism 2.

[0023] The water washing mechanism 1 includes a water washing box 11 and a circulating water washing component 18, wherein a supporting base 15 is provided at the bottom of the water washing box 11, and an air shielding component 12 is provided on the water washing box 11. The air shielding component 12 is used to introduce protective gas into the water washing box 11, and a feed port 13 and a water washing liquid port 14 are provided at the top of the water washing box 11.

[0024] The circulating water washing component 18 is used to perform circulating water washing on the polyarylether nitrile product. The circulating water washing component 18 includes a circulating pipe 183 and a circulating fan blade 182, wherein a filter screen 194 is arranged inside the water washing box 11, a filter screen bracket 195 is arranged at the bottom of the filter screen 194, the circulating pipe 183 is vertically penetrated and arranged on the inner side of the filter screen 194, the circulating fan blade 182 is rotatably arranged on the inner side of the circulating pipe 183, a suction port 184 is arranged at the bottom of the circulating pipe 183, and a first driving motor 181 for driving the circulating fan blade 182 to rotate is arranged at the bottom of the water washing box 11.

[0025] The drying mechanism 2 comprises a drying box 25 arranged at the product discharge end of the washing box 11 , and a blower 22 is arranged on the drying box 25 .

[0026] Specifically, in the process of washing polyarylethernitrile (PEN), the PEN product is first fed into the washing box 11 from the feed port 13 at the top of the washing box 11, and the PEN falls on the filter 194. At the same time, the washing liquid is injected into the washing box 11 through the washing liquid port 14. The washing liquid dissolves and adsorbs the impurities on the surface of the PEN. Then, the washing liquid enters the bottom of the washing box 11 through the filter 194, and the first drive motor 181 drives the circulating fan blade 182 to rotate, so that the washing liquid under the filter 194 is re-sucked into the circulation pipe 183, and the washing liquid is re-sent to the top of the filter 194 through the circulation pipe 183, and the PEN is re-washed, thereby reducing the washing process and improving the utilization rate of the washing liquid.

[0027] The washed PEN product is then sent to a drying box 25, dried in the drying box 25 and then led out, thus completing the washing and drying process of the PEN.

[0028] In one embodiment of the present invention, Figure 5 and Figure 6 As shown, a scraper assembly 19 is provided on the upper surface of the filter screen 194, wherein the scraper assembly 19 includes a scraper blade 193 and a water guide plate 196, wherein the top discharge end of the circulation pipe 183 is flush with the upper surface of the filter screen 194, the water guide plate 196 is rotatably arranged above the discharge end of the circulation pipe 183, and the plane where the water guide plate 196 is located is perpendicular to the water discharge direction of the circulation pipe 183, and a conical guide head 197 is arranged at the middle position of the bottom of the water guide plate 196, so that the water flow is evenly discharged from the edge part of the water guide plate 196, and the scraper blade 193 is arranged on the rotating edge of the water guide plate 196.

[0029] Specifically, in order to reduce the long-term adsorption of PEN particles on the surface of the filter 194 during the water washing process, during the PEN water washing process, the PEN particles adsorbed on the filter 194 are scraped and swept by the rotation of the scraper blade 193, and transmitted upward, so that the PEN particles are re-integrated into the water washing liquid above the filter 194, reducing the blockage caused by the long-term adsorption of PEN particles on the filter 194, and improving the penetration effect of the filter 194. In addition, during the process of the water washing liquid being transmitted upward through the circulation pipe 183, it passes through the water guide plate 196 and enters the surface of the filter 194 horizontally, forming a horizontal sweep of the PEN particles on the filter 194, and reducing the residue on the surface of the filter 194.

[0030] In one embodiment of the present invention, Figure 5 and Figure 6 As shown, a brush is provided at the bottom of the scraper blade 193 , and the brush is in contact with the filter screen 194 . The scraper blade 193 is an arc-shaped structure. A second drive motor 191 is provided above the scraper blade 193 , and the second drive motor 191 is connected to the scraper blade 193 .

[0031] Specifically, in the process of rotating the scraper blade 193 driven by the second drive motor 191, the spiral structure of the scraper blade 193 causes the PEN particles on the surface of the filter 194 to form a centrifugal effect, thereby reducing the residual PEN particles on the filter 194. In addition, after the water washing is completed, the spiral structure of the scraper blade 193 can transfer the PEN particles on the filter 194 to the solid material outlet 16 under the centrifugal effect, so that the PEN particles are transferred to the drying box 25 for drying.

[0032] In one embodiment of the present invention, Figure 2-Figure 5 As shown, the water washing box 11 is divided into a filter box 1102 and a reflux box 1103 by a filter screen 194 , the feed port 13 and the water washing liquid port 14 are located at the top of the filter box 1102 , and a water washing liquid outlet 1101 is provided at the bottom of the reflux box 1103 .

[0033] The air protection assembly 12 includes a first air inlet valve 121 and a second air inlet valve 122, wherein the first air inlet valve 121 is arranged at the top of the filter box 1102, a first exhaust valve 123 is arranged at the top of the filter box 1102, the second air inlet valve 122 is arranged at the top of the reflux box 1103, and a second exhaust valve 125 is arranged at the top of the reflux box 1103; the outlet ends of the first exhaust valve 123 and the second exhaust valve 125 are both provided with a pressure limiting valve 124.

[0034] Specifically, before and during water washing, nitrogen or other inert gas is connected through the first air inlet valve 121 and the second air inlet valve 122, and the inert gas is introduced into the water washing box 11 to protect the water washing environment and prevent the water washing liquid and PEN particles from being oxidized during the water washing process. The waste gas is discharged from the first exhaust valve 123 and the second exhaust valve 125.

[0035] In addition, by adjusting the exhaust pressure of the pressure limiting valve 124, the air pressure values ​​in the filter box 1102 and the reflux box 1103 are adjusted, and then the pressure difference between the upper and lower sides of the filter screen 194 is adjusted. For example, by increasing the pressure of the upper pressure limiting valve 124 of the first exhaust valve 123 and reducing the pressure of the upper pressure limiting valve 124 of the second exhaust valve 125, the downward penetration speed of the washing liquid can be accelerated and the washing speed can be improved. For another example, by reducing the pressure of the upper pressure limiting valve 124 of the first exhaust valve 123 and increasing the pressure of the upper pressure limiting valve 124 of the second exhaust valve 125, the gas at the bottom of the filter screen 194 will penetrate upward, playing the role of sweeping and cleaning the impurities inside the filter screen 194 upward.

[0036] In one embodiment of the present invention, Figure 2-Figure 5 As shown, a solid material outlet 16 is provided at the product discharge end of the washing box 11. The solid material outlet 16 and the filter screen 194 are in the same plane. A control valve 17 is provided at the discharge end of the solid material outlet 16. A sealed bearing 251 is provided at the connection between the drying box 25 and the control valve 17.

[0037] Specifically, after the PEN is washed with water, the circulating fan blade 182 first stops rotating and discharges the washing liquid through the washing liquid outlet 1101, and then a small amount of washing liquid is injected again through the washing liquid inlet 14 at the top of the washing box 11 to mix and transfer the PEN to the drying box 25. Then, the control valve 17 is opened, and the scraping blade 193 sends the PEN and the washing liquid mixture to the solid material outlet 16, and the solid material outlet 16 sends the PEN to the drying box 25 through the sealed bearing 251.

[0038] In one embodiment of the present invention, Figure 2-Figure 5 As shown, a drying component 28 is provided inside the drying box 25, and the drying component 28 includes a fixed cylinder 281, a stirring blade 282 and a stirring motor 284, wherein the fixed cylinder 281 is arranged inside the drying box 25, the stirring blade 282 is rotatably arranged inside the fixed cylinder 281, the power shaft of the stirring motor 284 is connected to the stirring blade 282, a grate plate 283 is provided at the bottom of the fixed cylinder 281, a water outlet 252 is provided at the bottom of the drying box 25, and a guide bucket 23 is provided at the connection between the water outlet 252, the dry material outlet 21 and the drying box 25, and a heater 221 is provided at the air outlet end of the blower 22.

[0039] Specifically, after PEN and the washing liquid enter the drying box 25 together, they first enter the fixed cylinder 281, and the washing liquid flows out to the water outlet 252 at the bottom of the drying box 25 through the grate plate 283 at the bottom, and is quickly transferred out through the negative pressure pump 253 in the water outlet 252.

[0040] The PEN particles are then left in the fixed cylinder 281, and the stirring motor 284 drives the stirring blade 282 in the fixed cylinder 281 to rotate, stirring the PEN particles in the fixed cylinder 281 to prevent agglomeration, and can accelerate the air in the blower 22 to pass through the fixed cylinder 281, so as to quickly dry the PEN. During the drying process, the air inlet end of the blower 22 is connected to the inert protector, and the protective gas is heated by the heater 221 to form a hot air flow. After passing through the fixed cylinder 281, the hot air flow is transferred out by the negative pressure pump 253, so that the PEN in the fixed cylinder 281 is quickly dried.

[0041] In one embodiment of the present invention, Figure 2-Figure 5 As shown, a dry material outlet 21 is provided at the top of the drying box 25, a discharge valve plate 212 is provided at the dry material outlet 21, a discharge valve plate controller 211 is provided on the discharge valve plate 212, a feed valve plate 131 is provided at the feed port 13, and a feed valve plate controller 132 is provided on the feed valve plate 131.

[0042] Specifically, the feed valve plate 131 is controlled to open and close by the feed valve plate controller 132 , and the discharge valve plate 212 is controlled to open and close by the discharge valve plate controller 211 , so as to control the airtightness of the feed and discharge ports.

[0043] In one embodiment of the present invention, Figure 2-Figure 5 As shown, a drying box bracket 26 is provided below the drying box 25, and the drying box bracket 26 is rotatably connected to the drying box 25. A rotation angle motor 24 for driving the drying box 25 to adjust the working angle is provided on the drying box bracket 26. A material receiving box 27 is provided at the bottom of the drying box bracket 26. A balancing block 252 is provided on the outer surface of the drying box 25 to balance the force during the rotation of the drying box 25.

[0044] Specifically, after drying is completed, the drying box 25 is driven by the angle motor 24 to rotate 180° so that the dry material outlet 21 is aligned with the receiving box 27, and then the discharge valve plate 212 is opened, and the stirring blades 282 gradually scrape the PEN dry material in the fixed cylinder 281 clean, and the PEN dry material falls into the receiving box 27 from the dry material outlet 21 due to gravity.

[0045] In order to clearly explain the above embodiments, refer to Figure 1-Figure 6As shown, when the water washing and drying equipment for the production of polyarylethernitrile of the present application is used: in the process of water washing polyarylethernitrile (PEN), nitrogen or other inert gas is first connected through the first air inlet valve 121 and the second air inlet valve 122, and the inert gas is introduced into the water washing box 11 to protect the water washing environment and prevent the water washing liquid and PEN particles from being oxidized during the water washing process. The waste gas is discharged from the first exhaust valve 123 and the second exhaust valve 125.

[0046] The PEN product is then fed into the water washing box 11 from the feed port 13 at the top of the water washing box 11, and the PEN then falls on the filter 194. At the same time, the washing liquid is injected into the water washing box 11 through the washing liquid port 14. The washing liquid dissolves and adsorbs the impurities on the surface of the PEN, and then the washing liquid enters the bottom of the water washing box 11 through the filter 194. The first driving motor 181 then drives the circulating fan blades 182 to rotate, and the washing liquid under the filter 194 is re-sucked into the circulation pipe 183, and the washing liquid is re-sent to the top of the filter 194 through the circulation pipe 183 to re-wash the PEN, and this cycle is repeated.

[0047] During the PEN washing process, the second driving motor 191 rotates to drive the driving rod 192 to rotate, and then drives the scraper blade 193 to rotate. The scraper blade 193 scrapes the PEN particles adsorbed on the filter 194 and transmits them upward, so that the PEN particles are re-integrated into the washing liquid above the filter 194, reducing the blockage caused by the long-term adsorption of PEN particles on the filter 194, and improving the penetration effect of the filter 194. In addition, when the washing liquid is transmitted upward through the circulation pipe 183, it passes through the water guide plate 196 and enters the surface of the filter 194 horizontally, forming a horizontal sweep of the PEN particles on the filter 194, reducing the residue on the surface of the filter 194, and can also fully mix the PEN particles with the washing liquid, and fully wash the particles on the PEN surface.

[0048] After the PEN is washed, the circulating fan blade 182 stops rotating and discharges the washing liquid through the washing liquid outlet 1101. Then, a small amount of washing liquid is injected again through the washing liquid inlet 14 at the top of the washing box 11 to mix and transfer the PEN to the drying box 25. Then, the control valve 17 is opened, and the scraping blade 193 with a spiral structure can transfer the PEN particles on the filter screen 194 to the solid material outlet 16 by centrifugal action. The solid material outlet 16 sends the PEN to the drying box 25 through the sealed bearing 251.

[0049] After PEN and the washing liquid enter the drying box 25 together, they first enter the fixed cylinder 281, and the washing liquid flows out to the water outlet 252 at the bottom of the drying box 25 through the grate plate 283 at the bottom, and is quickly transferred out through the negative pressure pump 253 in the water outlet 252.

[0050] During the drying process, the air inlet end of the blower 22 is connected to the inert protector, and the protective gas is heated by the heater 221 to form a hot air flow, which is transferred out by the negative pressure pump 253 after passing through the fixed cylinder 281, so that the PEN in the fixed cylinder 281 is quickly dried. During this period, the stirring motor 284 in the fixed cylinder 281 drives the stirring blade 282 in the fixed cylinder 281 to rotate, stir the PEN particles in the fixed cylinder 281 to prevent agglomeration, and accelerate the air in the blower 22 to pass through the water grate plate 283 at the bottom of the fixed cylinder 281, so as to quickly dry the PEN.

[0051] After drying is completed, the drying box 25 is driven by the angle motor 24 to rotate 180° so that the dry material outlet 21 is aligned with the material receiving box 27, and then the discharge valve plate 212 is opened, and the stirring blades 282 gradually scrape the PEN dry material in the fixed cylinder 281 clean, and the PEN dry material falls into the material receiving box 27 from the dry material outlet 21 due to gravity.

[0052] In summary, the water washing and drying equipment for the production of polyarylethernitrile according to the embodiment of the present invention, through the circulating water washing component in the water washing box, mixes the PEN product particles with the washing liquid and then circulates the water washing, the PEN surface is fully in contact with the washing liquid, the impurities on the PEN surface are fully and quickly washed, the washing process is reduced, the utilization rate of the washing liquid is improved, and the washed PEN particles are then dried by the drying mechanism to obtain a PEN product exceeding the purity.

[0053] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A water washing and drying device for producing polyarylethernitrile, characterized in that: It comprises a washing mechanism (1) and a drying mechanism (2), wherein: The water washing mechanism (1) comprises a water washing box (11) and a circulating water washing assembly (18), wherein the water washing box (11) is provided with a gas shielding assembly (12), the gas shielding assembly (12) is used to introduce a protective gas into the water washing box (11), and the top of the water washing box (11) is provided with a feed inlet (13) and a water washing liquid inlet (14); The circulating water washing component (18) is used to perform circulating water washing on the polyarylethernitrile product, and the circulating water washing component (18) comprises a circulating pipe (183) and a circulating fan blade (182), wherein a filter screen (194) is arranged inside the water washing box (11), the circulating pipe (183) is vertically penetrated and arranged on the inner side of the filter screen (194), and the circulating fan blade (182) is rotatably arranged on the inner side of the circulating pipe (183); The drying mechanism (2) comprises a drying box (25) arranged at the product discharge end of the washing box (11), and a blower (22) is arranged on the drying box (25).

2. The water washing and drying equipment for producing polyarylethernitrile according to claim 1, characterized in that: A scraper assembly (19) is provided on the upper surface of the filter screen (194), wherein the scraper assembly (19) comprises a scraper blade (193) and a water guide plate (196), wherein the top discharge end of the circulation pipe (183) and the upper surface of the filter screen (194) are flush with each other, the water guide plate (196) is rotatably arranged above the discharge end of the circulation pipe (183), and the plane where the water guide plate (196) is located is perpendicular to the water discharge direction of the circulation pipe (183), and the scraper blade (193) is arranged on the rotating edge of the water guide plate (196).

3. The water washing and drying equipment for producing polyarylethernitrile according to claim 2, characterized in that: A brush is provided at the bottom of the scraping blade (193), the brush is in contact with the filter screen (194), the scraping blade (193) is an arc-shaped structure, a second drive motor (191) is provided above the scraping blade (193), and the second drive motor (191) is connected to the scraping blade (193).

4. The water washing and drying equipment for producing polyarylethernitrile according to claim 1, characterized in that: A material suction port (184) is provided at the bottom of the circulation pipe (183), and a first driving motor (181) for driving the circulation fan blades (182) to rotate is provided at the bottom of the water washing box (11).

5. The water washing and drying equipment for producing polyarylethernitrile according to claim 1, characterized in that: The water washing box (11) is divided into a filter box (1102) and a reflux box (1103) by a filter screen (194); the feed port (13) and the water washing liquid port (14) are located at the top of the filter box (1102); and the bottom of the reflux box (1103) is provided with a water washing liquid outlet (1101); The air protection component (12) comprises a first air intake valve (121) and a second air intake valve (122), wherein the first air intake valve (121) is arranged at the top of the filter box (1102), the top of the filter box (1102) is provided with a first air exhaust valve (123), the second air intake valve (122) is arranged at the top of the return box (1103), the top of the return box (1103) is provided with a second air exhaust valve (125); and pressure limiting valves (124) are provided at the air outlet ends of the first air exhaust valve (123) and the second air exhaust valve (125).

6. The water washing and drying equipment for producing polyarylethernitrile according to claim 1, characterized in that: The product discharge end of the washing box (11) is provided with a solid material outlet (16), the solid material outlet (16) and the filter screen (194) are in the same plane, the discharge end of the solid material outlet (16) is provided with a control valve (17), and a sealing bearing (251) is provided at the connection between the drying box (25) and the control valve (17).

7. The water washing and drying equipment for producing polyarylethernitrile according to claim 6, characterized in that: A drying component (28) is arranged inside the drying box (25), and the drying component (28) comprises a fixed cylinder (281), a stirring blade (282) and a stirring motor (284), wherein the fixed cylinder (281) is arranged inside the drying box (25), the stirring blade (282) is rotatably arranged inside the fixed cylinder (281), a power shaft of the stirring motor (284) is connected to the stirring blade (282), and a water grate plate (283) is arranged at the bottom of the fixed cylinder (281).

8. The water washing and drying equipment for producing polyarylethernitrile according to claim 6, characterized in that: The top of the drying box (25) is provided with a dry material outlet (21), the dry material outlet (21) is provided with a discharge valve plate (212), the discharge valve plate (212) is provided with a discharge valve plate controller (211), the bottom of the drying box (25) is provided with a water outlet (252), a negative pressure pump (253) is provided inside the water outlet (252), and a heater (221) is provided at the air outlet end of the blower (22).

9. The water washing and drying equipment for producing polyarylethernitrile according to claim 1, characterized in that: A drying box bracket (26) is provided below the drying box (25), the drying box bracket (26) being rotatably connected to the drying box (25), the drying box bracket (26) being provided with an angle motor (24) for driving the drying box (25) to adjust a working angle, and a material receiving box (27) is provided at the bottom of the drying box bracket (26).

10. The water washing and drying equipment for producing polyarylethernitrile according to claim 1, characterized in that: The feed port (13) is provided with a feed valve plate (131), and a feed valve plate controller (132) is provided on the feed valve plate (131).

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