Recovery device for treating N-phenylpyrrolidone production waste

Abstract

The utility model relates to the technical field of waste recovery devices, and discloses an N-phenylpyrrolidone production waste recovery device which comprises a mixing bin, the top of the mixing bin is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a worm, the top of the mixing bin is rotationally connected with a worm gear, and the output end of the worm gear is fixedly connected with a second motor. A worm is arranged in the mixing bin and meshed with a worm wheel, a rotating column is fixedly connected to the interior of the worm wheel, the rotating column is rotatably connected to the interior of the mixing bin, a scraper is fixedly connected to the outer wall of the rotating column, and the outer wall of the scraper is slidably connected to the inner wall of the mixing bin. According to the device, the problems that the recovery rate is reduced and resources are wasted due to the fact that waste materials and the solvent are difficult to fully mix and the concentration of the mixture is changed due to the fact that the recovery device and the solvent are difficult to mix are solved, the raw materials and the solvent are uniformly mixed, and N-phenylpyrrolidone and the solvent are better separated in the subsequent separation step; therefore, the recovery efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste treatment and recycling devices, in particular to a waste treatment and recycling device for N-phenylpyrrolidone production. Background Art

[0002] N-phenylpyrrolidone is an organic compound with important industrial and chemical uses, commonly used in fields such as synthesis, solvents, and pharmaceutical preparations. Since waste materials and by-products are generated during its production, in order to improve resource utilization efficiency and reduce environmental pollution, a recycling device is usually required. The recycling device effectively separates and purifies N-phenylpyrrolidone through methods such as distillation, adsorption, and membrane separation, enabling it to be reused in the production process. This not only reduces production costs but also reduces the emission of harmful substances, meets the requirements of environmental protection regulations, and realizes the recycling of resources.

[0003] The traditional N-phenylpyrrolidone waste recycling device mainly operates through three steps. First, the waste materials and by-products are mixed with a selected solvent to reduce viscosity and improve the recycling efficiency, ensuring that phenylpyrrolidone is fully dissolved. Then, the mixed material is introduced into a separation device to remove impurities and insoluble substances through physical or chemical methods. Finally, the separated material is introduced into a distillation column, heated to evaporate N-phenylpyrrolidone, and cooled into a liquid state by a condenser for collection, thereby achieving efficient recycling. The entire process relies on uniform mixing, effective separation, and precise distillation to ensure the purity and recovery rate of N-phenylpyrrolidone, with high energy consumption.

[0004] Before the traditional N-phenylpyrrolidone waste recycling device is processed, it needs to be mixed with a solvent. However, the traditional device usually lacks efficient mixing equipment, resulting in difficulty in fully mixing the waste materials and the solvent. At the same time, the viscosity difference and different physical properties also lead to uneven mixing, causing changes in the concentration of the mixture, thereby reducing the recovery rate and resulting in waste of resources. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a waste treatment and recycling device for N-phenylpyrrolidone production, aiming to improve the difficulty of mixing the traditional N-phenylpyrrolidone waste recycling device with a solvent, resulting in difficulty in fully mixing the waste materials and the solvent, causing changes in the concentration of the mixture, thereby reducing the recovery rate and resulting in waste of resources.

[0006] To achieve the above object, the present utility model provides the following technical solution: A device for recycling waste in the production of N-phenylpyrrolidone, including a mixing bin, a first motor is fixedly connected to the top of the mixing bin, the output end of the first motor is fixedly connected to a worm, a worm gear is rotatably connected to the top of the mixing bin, the worm is engaged with the worm gear, a rotating column is fixedly connected to the inside of the worm gear, the rotating column is rotatably connected to the inside of the mixing bin, a scraping plate is fixedly connected to the outer wall of the rotating column, the outer wall of the scraping plate is slidably connected to the inner wall of the mixing bin, a driving wheel is fixedly connected to the top of the rotating column, a driven wheel is rotatably connected to the inside of the mixing bin, the driving wheel is engaged with the driven wheel, a stirring rod is fixedly connected to the inside of the driven wheel, a feeding pipe is fixedly connected to the inside of the mixing bin, a supporting component is arranged on the outer wall of the rotating column, the supporting component is used for supporting the rotating column and the stirring rod, and a blanking plate is fixedly connected to the bottom of the mixing bin.

[0007] Further, the supporting component includes a connecting plate, the inside of the connecting plate is rotatably connected to the outer wall of the rotating column, the bottom of the stirring rod is rotatably connected to the inside of the connecting plate, a supporting plate is fixedly connected to the inner wall of the mixing bin, and the bottom of the rotating column is rotatably connected to the inside of the supporting plate.

[0008] Further, a support frame is fixedly connected to the outer wall of the mixing bin, and a conveying pipe is fixedly connected to the bottom of the blanking plate.

[0009] Further, one end of the conveying pipe is fixedly connected to a separation bin, and the outer wall of the separation bin is fixedly connected to the outer wall of the mixing bin.

[0010] Further, a second motor is fixedly connected to the inside of the separation bin, and the output end of the second motor is fixedly connected to a gear.

[0011] Further, a rotating sleeve is rotatably connected to the inside of the separation bin, a toothed ring is fixedly connected to the outer wall of the rotating sleeve, the toothed ring is engaged with the gear, and a separation plate is fixedly connected to the inner wall of the rotating sleeve.

[0012] Further, a roller is fixedly connected to the outer wall of the rotating sleeve, a limiting ring is fixedly connected to the inner wall of the separation bin, the outer wall of the roller is slidably connected to the outer wall of the limiting ring, a slideway is opened in the inside of the separation bin, a second blower is fixedly connected to the top of the separation bin, and a discharge pipe is fixedly connected to the inside of the separation bin.

[0013] Further, a blanking valve is fixedly connected to the bottom of the separation bin, the output end of the blanking valve is fixedly connected to a storage box, and a first hot air blower is fixedly connected to the inside of the storage box.

[0014] The present utility model has the following beneficial effects:

[0015] 1. In the present utility model, first, the first driving motor drives the worm to rotate, and then cooperates with the worm wheel and the rotating column to drive the scraper to scrape the inner wall of the mixing bin. At the same time, it also drives the driving wheel to rotate and cooperates with the driven wheel to drive two stirring rods to evenly stir the raw materials and the solvent, solving the problem that the recycling device has difficulty in mixing with the solvent, resulting in the difficulty of fully mixing the waste and the solvent, causing the concentration of the mixture to change, thereby reducing the recovery rate and wasting resources. It achieves uniform mixing of the raw materials and the solvent, which helps to better separate N-phenylpyrrolidone from the solvent in the subsequent separation step, thereby improving the recovery efficiency.

[0016] 2. In the present utility model, first, the second motor is started to drive the gear to rotate, and then it cooperates with the toothed ring, the roller and the limit ring to drive the rotating sleeve and the separation plate to rotate. Furthermore, the water and the solvent immiscible with its raw materials in the mixture are transported through the slideway and the discharge pipe. Finally, the raw materials are dried and stored through the storage box, the first hot air blower and the second hot air blower, achieving separation, drying and storage of the raw materials, which not only helps to improve the purity and safety of N-phenylpyrrolidone, but also improves the quality and economic benefits of the product, while reducing environmental pollution and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a recycling device for treating N-phenylpyrrolidone production waste proposed by the present utility model;

[0018] Figure 2 It is an internal structural schematic diagram of the mixing bin of a recycling device for treating N-phenylpyrrolidone production waste proposed by the present utility model;

[0019] Figure 3 It is a structural schematic diagram of the storage box of a recycling device for treating N-phenylpyrrolidone production waste proposed by the present utility model;

[0020] Figure 4 It is an internal structural schematic diagram of the separation bin of a recycling device for treating N-phenylpyrrolidone production waste proposed by the present utility model;

[0021] Figure 5 It is a structural schematic diagram of the second blower of a recycling device for treating N-phenylpyrrolidone production waste proposed by the present utility model;

[0022] Figure 6 It is an internal structural schematic diagram of a recycling device for treating N-phenylpyrrolidone production waste proposed by the present utility model.

[0023] LEGEND DESCRIPTION:

[0024] 1. Mixing bin; 2. First motor; 3. Worm; 4. Worm gear; 5. Rotating column; 6. Scraper; 7. Driving wheel; 8. Driven wheel; 9. Feed pipe; 10. Stirring rod; 11. Connecting plate; 12. Support plate; 13. Discharge plate; 14. Delivery pipe; 15. Support frame; 16. Separation bin; 17. Second motor; 18. Gear; 19. Tooth ring; 20. Rotating sleeve; 21. Roller; 22. Limit ring; 23. Discharge valve; 24. Storage box; 25. First hot air blower; 26. Separation plate; 27. Slideway; 28. Second blower; 29. Discharge pipe. Detailed implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] Refer to Figure 1 - Figure 2 , an embodiment provided by the present invention: A device for recycling waste in the production of N-phenylpyrrolidone, including a mixing bin 1, a first motor 2 is fixedly connected to the top of the mixing bin 1, the output end of the first motor 2 is fixedly connected to a worm 3, a worm gear 4 is rotatably connected to the top of the mixing bin 1, the worm 3 is engaged with the worm gear 4, a rotating column 5 is fixedly connected to the inside of the worm gear 4, the rotating column 5 is rotatably connected to the inside of the mixing bin 1, a scraper 6 is fixedly connected to the outer wall of the rotating column 5, the outer wall of the scraper 6 is slidably connected to the inner wall of the mixing bin 1, a driving wheel 7 is fixedly connected to the top of the rotating column 5, a driven wheel 8 is rotatably connected to the inside of the mixing bin 1, the driving wheel 7 is engaged with the driven wheel 8, a stirring rod 10 is fixedly connected to the inside of the driven wheel 8, a feed pipe 9 is fixedly connected to the inside of the mixing bin 1, a support assembly is arranged on the outer wall of the rotating column 5, and the support assembly is used for supporting the rotating column 5 and the stirring rod 10. A discharge plate 13 is fixedly connected to the bottom of the mixing bin 1. The support assembly includes a connecting plate 11. The inside of the connecting plate 11 is rotatably connected to the outer wall of the rotating column 5. The bottom of the stirring rod 10 is rotatably connected to the inside of the connecting plate 11. A support plate 12 is fixedly connected to the inner wall of the mixing bin 1. The bottom of the rotating column 5 is rotatably connected to the inside of the support plate 12;

[0027] Specifically, first, the raw materials and the solvent are fed into the interior of the mixing chamber 1 through the feed pipe 9 for mixing the raw materials and the solvent. Then, the first motor 2 is started to drive the worm 3 to rotate. Due to the meshing relationship between the worm 3 and the worm wheel 4, the worm wheel 4 drives the rotating column 5 to rotate inside the mixing chamber 1 as the worm 3 rotates. The rotation of the rotating column 5 drives the scraper 6 and the driving wheel 7 to rotate through the connecting device. The scraper 6 enables scraping treatment of the inner wall of the mixing chamber 1 during rotation to ensure uniform mixing. At the same time, the rotation of the driving wheel 7 drives the driven wheels 8 on both sides to rotate synchronously through the transmission system, thereby driving the two stirring rods 10 to perform uniform stirring treatment on the interior of the mixing chamber 1. The design of the stirring rods 10 ensures that the raw materials are fully mixed in the mixing chamber 1.

[0028] Refer to Figure 3 - Figure 6 , a support frame 15 is fixedly connected to the outer wall of the mixing chamber 1. A delivery pipe 14 is fixedly connected to the bottom of the blanking plate 13. One end of the delivery pipe 14 is fixedly connected to a separation chamber 16. The outer wall of the separation chamber 16 is fixedly connected to the outer wall of the mixing chamber 1. An electric motor two 17 is fixedly connected to the interior of the separation chamber 16. The output end of the electric motor two 17 is fixedly connected to a gear 18. A rotating sleeve 20 is rotatably connected to the interior of the separation chamber 16. A toothed ring 19 is fixedly connected to the outer wall of the rotating sleeve 20. The toothed ring 19 meshes with the gear 18. A separation plate 26 is fixedly connected to the inner wall of the rotating sleeve 20. A roller 21 is fixedly connected to the outer wall of the rotating sleeve 20. A limiting ring 22 is fixedly connected to the inner wall of the separation chamber 16. The outer wall of the roller 21 is slidably connected to the outer wall of the limiting ring 22. A slideway 27 is provided in the interior of the separation chamber 16. A second blower 28 is fixedly connected to the top of the separation chamber 16. A discharge pipe 29 is fixedly connected to the interior of the separation chamber 16;

[0029] Specifically, the uniformly mixed raw materials are transported through the blanking plate 13 and the delivery pipe 14. The delivery pipe 14 sends the mixture to the interior of the separation chamber 16. Inside the separation chamber 16, the electric motor two 17 is started, and its power is transmitted to the toothed ring 19 through the gear 18. The toothed ring 19 drives the rotating sleeve 20 and the separation plate 26 to rotate. The rotation of the rotating sleeve 20 slides through the roller 21 inside the limiting ring 22, ensuring stable rotation. The through holes inside the separation plate 26 allow water and solvents immiscible with the raw materials to pass through, thereby achieving separation. The separated liquid is transported through the through holes inside the rotating sleeve 20 and the slideway 27 inside the separation chamber 16, and finally discharged through the discharge pipe 29, achieving the separation effect.

[0030] Refer to Figure 1 and Figure 3 , a blanking valve 23 is fixedly connected to the bottom of the separation chamber 16. The output end of the blanking valve 23 is fixedly connected to a storage box 24. A first hot air blower 25 is fixedly connected to the interior of the storage box 24;

[0031] Specifically, through the second blower 28, the raw materials on the inner wall of the separation plate 26 are blown downward. At the same time, the blanking valve 23 is opened to make the raw materials fall into the interior of the storage box 24. Inside the storage box 24, the first hot blower 25 is used to further dry the raw materials to ensure the dryness of the raw materials. Finally, the dried raw materials are stored in the storage box 24 and wait for subsequent use or processing.

[0032] Working principle: When the device for recycling the production waste of N-phenylpyrrolidone is needed, first, the raw materials and the solvent are sent into the interior of the mixing chamber 1 through the feed pipe 9. Then, the first motor 2 is started to drive the worm 3 to rotate, thereby driving the rotating column 5 to rotate inside the mixing chamber 1 through the worm wheel 4. Then, the rotation of the rotating column 5 drives the scraper 6 and the driving wheel 7 to rotate. Through the rotation of the scraper 6, the inner wall of the mixing chamber 1 can be scraped. Then, the rotation of the driving wheel 7 drives the two driven wheels 8 on both sides to rotate synchronously, thereby driving the two stirring rods 10 to evenly stir the interior of the mixing chamber 1. The stirred raw materials will be transported through the blanking plate 13 and the conveying pipe 14, achieving the effect of uniform stirring.

[0033] In addition, after the conveying pipe 14 transports the stirred raw materials into the interior of the separation chamber 16, the second motor 17 is started to drive the gear 18 to rotate, and the rotating sleeve 20 and the separation plate 26 are driven to rotate in cooperation with the toothed ring 19. During this process, the roller 21 will slide inside the limiting ring 22, making it more stable. Then, through the through holes inside the separation plate 26, the water and the solvent immiscible with the raw materials are sent between the separation plate 26 and the rotating sleeve 20. Then, it is transported through the through holes inside the rotating sleeve 20 and the slideway 27 inside the separation chamber 16, and finally discharged through the discharge pipe 29, achieving the effect of separation.

[0034] Finally, the second blower 28 is started to blow the raw materials on the inner wall of the separation plate 26 downward. In cooperation with the blanking valve 23, the raw materials are sent into the interior of the storage box 24. Then, they are dried and stored through the first hot blower 25.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A recycling device for processing N-phenylpyrrolidone production waste, comprising a mixing bin (1), characterized in that: A motor one (2) is fixedly connected to the top of the mixing bin (1). The output end of the motor one (2) is fixedly connected to a worm (3). A worm gear (4) is rotatably connected to the top of the mixing bin (1). The worm (3) meshes with the worm gear (4). A rotating column (5) is fixedly connected to the inside of the worm gear (4). The rotating column (5) is rotatably connected to the inside of the mixing bin (1). A scraping plate (6) is fixedly connected to the outer wall of the rotating column (5). The outer wall of the scraping plate (6) is slidably connected to the inner wall of the mixing bin (1). A driving wheel (7) is fixedly connected to the top of the rotating column (5). A driven wheel (8) is rotatably connected to the inside of the mixing bin (1). The driving wheel (7) meshes with the driven wheel (8). A stirring rod (10) is fixedly connected to the inside of the driven wheel (8). A feeding pipe (9) is fixedly connected to the inside of the mixing bin (1). A support assembly is arranged on the outer wall of the rotating column (5). The support assembly is used for supporting the rotating column (5) and the stirring rod (10). A blanking plate (13) is fixedly connected to the bottom of the mixing bin (1).

2. The waste recycling device for processing N-phenylpyrrolidone production according to claim 1, wherein: The support assembly includes a connecting plate (11). The inside of the connecting plate (11) is rotatably connected to the outer wall of the rotating column (5). The bottom of the stirring rod (10) is rotatably connected to the inside of the connecting plate (11). A support plate (12) is fixedly connected to the inner wall of the mixing bin (1). The bottom of the rotating column (5) is rotatably connected to the inside of the support plate (12).

3. A recycling device for treating N-phenylpyrrolidone production waste according to claim 1, characterized in that: A support frame (15) is fixedly connected to the outer wall of the mixing bin (1). A conveying pipe (14) is fixedly connected to the bottom of the blanking plate (13).

4. The waste recycling device for processing N-phenylpyrrolidone production according to claim 3, characterized in that: One end of the conveying pipe (14) is fixedly connected to a separation bin (16). The outer wall of the separation bin (16) is fixedly connected to the outer wall of the mixing bin (1).

5. A recycling device for treating N-phenylpyrrolidone production waste according to claim 4, characterized in that: A motor two (17) is fixedly connected to the inside of the separation bin (16). The output end of the motor two (17) is fixedly connected to a gear (18).

6. The recycling device for treating N-phenylpyrrolidone production waste according to claim 5, wherein: A rotating sleeve (20) is rotatably connected to the inside of the separation bin (16). A toothed ring (19) is fixedly connected to the outer wall of the rotating sleeve (20). The toothed ring (19) meshes with the gear (18). A separation plate (26) is fixedly connected to the inner wall of the rotating sleeve (20).

7. A recycling device for processing N-phenylpyrrolidone production waste according to claim 6, characterized in that: A roller (21) is fixedly connected to the outer wall of the rotating sleeve (20). A limiting ring (22) is fixedly connected to the inner wall of the separation bin (16). The outer wall of the roller (21) is slidably connected to the outer wall of the limiting ring (22). A slideway (27) is arranged inside the separation bin (16). A blower two (28) is fixedly connected to the top of the separation bin (16). A discharge pipe (29) is fixedly connected to the inside of the separation bin (16).

8. A recycling device for treating N-phenylpyrrolidone production waste according to claim 7, characterized in that: A blanking valve (23) is fixedly connected to the bottom of the separation bin (16). The output end of the blanking valve (23) is fixedly connected to a storage box (24). A hot air blower one (25) is fixedly connected to the inside of the storage box (24).

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