Aminomethylbenzoic acid recycling device

Abstract

The utility model relates to the field of aminomethylbenzoic acid recovery, and discloses an aminomethylbenzoic acid recycling device. According to the device, the surface of one side of an evaporation tower is connected with a connecting pipeline, the surface of the other end of the connecting pipeline is connected with a filter box and a pretreatment tank, a control valve is arranged on the surface of the connecting pipeline between the pretreatment tank and the filter box, and the surface of one side of the pretreatment tank is connected with a water inlet pipe; a filter screen is arranged in the filter box, a pull plate is connected to the interior of the pretreatment tank through a pull rod, a pretreatment structure is arranged in the aminomethylbenzoic acid recycling device, so that subsequent work such as separation, purification and environment protection can be efficiently carried out, and the aminomethylbenzoic acid enters the pretreatment tank through a water inlet pipe to be subjected to precipitation stirring; then a control valve is opened to be matched with a connecting pipeline to enter the filter box, large-particle impurities in the waste are removed through a filter screen, a pull plate can be driven by pulling a pull rod to discharge the impurities outwards, and sediments in the pretreatment tank are extracted.

Description

Technical Field

[0001] This application belongs to the technical field of p-aminomethylbenzoic acid recovery, and specifically relates to a device for recycling p-aminomethylbenzoic acid. Background Art

[0002] p-aminomethylbenzoic acid, also known as 4-aminomethylbenzoic acid, is a hemostatic drug with excellent hemostatic and bleeding prevention effects. At the same time, p-aminomethylbenzoic acid can prevent and improve pigment deposition on the skin color, so it is widely used in the pharmaceutical and daily chemical fields; in the preparation process of p-aminomethylbenzoic acid, hydrogen chloride is needed to hydrolyze its intermediate, and then sodium hydroxide is added to the solution to adjust the pH value, and finally p-aminomethylbenzoic acid is precipitated. At this time, a large amount of sodium chloride will be dissolved in the reaction mother liquor. If the mother liquor is directly discharged, it will cause industrial wastewater pollution and also cause a certain degree of waste of resources.

[0003] For example, the utility model with the publication number CN216536943U discloses a device for recycling the chlorination mother liquor of p-aminomethylbenzoic acid. When using this utility model, the chlorination mother liquor of p-aminomethylbenzoic acid can be injected into three evaporation towers through the liquid inlet in sequence, and then the heating plate is started. The heating plate heats the mother liquor inside the evaporation tower, and the steam generated by heating enters the steam pipeline through the steam outlet. At this time, the pressure valve is in a closed state. When the pressure inside the left evaporation tower is greater than that of the right evaporation tower, the pressure valve opens due to the pressure difference on both sides, and the steam enters the right evaporation tower. During the evaporation process, the pressure of the left evaporation tower can always be kept greater than that of the right evaporation tower. Because the liquid boiling points are different due to different pressures, the high-temperature steam can release heat again after entering the evaporation tower with a lower boiling point. This utility model adopts the form of multi-effect evaporation, which can effectively reduce the energy consumption of mother liquor recycling. Finally, the concentrated sodium chloride solution enters the recovery tank through the liquid guide tank to complete the recovery.

[0004] However, in this application, the device for recycling the chlorination mother liquor of p-aminomethylbenzoic acid does not have a pretreatment structure, which makes the subsequent steps unable to proceed better. Content of the Utility Model

[0005] The purpose of this application is to provide a device for recycling p-aminomethylbenzoic acid in order to solve the above-mentioned pretreatment structure problem.

[0006] The technical solution adopted in this application is as follows: A device for recycling p-aminomethylbenzoic acid includes an evaporation tower. One side surface of the evaporation tower is connected with a connecting pipe. The other end surface of the connecting pipe is connected with a filter box and a pretreatment tank. A control valve is arranged on the surface of the connecting pipe between the pretreatment tank and the filter box. One side surface of the pretreatment tank is connected with a water inlet pipe. A filter screen is arranged inside the filter box. A pull plate is connected inside the pretreatment tank through a pull rod.

[0007] By adopting the above technical solution, setting a pretreatment structure in the para - aminomethylbenzoic acid recovery and reuse device can ensure the subsequent work, such as efficient separation, purification, and environmental protection. It enters the inside of the pretreatment tank through the water inlet pipe for precipitation and stirring, and then by opening the control valve, it can enter the inside of the filter box through the connecting pipe, and the large - particle impurities in the waste are removed through the filter screen. By pulling the pull rod, the pull plate can be driven to discharge outward, and the sediment in the pretreatment tank can be taken out.

[0008] In a preferred embodiment, the top of the evaporation tower is connected to a steam pipe, the other end of the steam pipe is connected to a distilled water recovery tank, and a pressure valve is arranged on the surface of the steam pipe.

[0009] By adopting the above technical solution, the set steam pipe can recover the distilled liquid inside the evaporation tower into the distilled water recovery tank, and the set pressure valve can play an auxiliary role in this structure.

[0010] In a preferred embodiment, an opening plate is arranged on one side surface of the evaporation tower, and a liquid guide groove is connected to the surface of the evaporation tower below the opening plate.

[0011] By adopting the above technical solution, the set opening plate can facilitate the discharge of salt particles from the inside of the evaporation tower, and the set liquid guide groove is convenient for the recovery of salt particles.

[0012] In a preferred embodiment, a recovery tank is arranged below the liquid guide groove, and a drain pipe is arranged at the bottom end of the recovery tank.

[0013] By adopting the above technical solution, the set liquid guide groove and recovery tank can carry out the collection work.

[0014] In a preferred embodiment, a baffle is movably arranged inside the pressure valve, one side surface of the baffle is connected to a telescopic pipe, the other end of the telescopic pipe is connected to a spring sleeve, and the other end surface of the spring sleeve is connected to a vertical rod.

[0015] By adopting the above technical solution, by setting a spring sleeve and a telescopic pipe inside the pressure valve, the baffle can be driven to move.

[0016] In a preferred embodiment, a driving motor is arranged on one side surface of the bottom end inside the evaporation tower, the output end of the driving motor is connected to a main gear, and a secondary gear is meshed with the surface of the main gear, and a screw rod is connected to the middle of the secondary gear.

[0017] By adopting the above technical solution, starting the set driving motor can drive the main gear to rotate, and by the meshed secondary gear, the screw rod can be driven to rotate, thereby driving other structures to carry out moving work.

[0018] In a preferred embodiment, a screw block is threadedly connected to the surface of the screw, a scraper is connected to the surface of the screw block, and the surface of the scraper is in contact with the bottom surface of the evaporation tower.

[0019] By adopting the above technical solution, when the screw block moves on the surface of the screw, it can drive the scraper to move, so that the salt particles at the bottom of the evaporation tower can be scraped into the recovery tank.

[0020] To sum up, due to the adoption of the above technical solution, the beneficial effects of the present application are as follows:

[0021] In the present application, setting a pretreatment structure in the p-aminomethylbenzoic acid recovery and reuse device can ensure the subsequent work, such as the efficient separation, purification and environmental protection. It enters the inside of the pretreatment tank through the water inlet pipe for precipitation and stirring, and then opens the control valve to enter the inside of the filter box through the connecting pipe, and removes large particle impurities in the waste through the filter screen. By pulling the pull rod, the pull plate can be driven to discharge outward, and the precipitate inside the pretreatment tank can be taken out. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the p-aminomethylbenzoic acid recovery and reuse device of the present application;

[0023] Figure 2 It is a schematic top view structure diagram of the steam tower in the present application;

[0024] Figure 3 It is a schematic diagram of the pretreatment structure components in the present application;

[0025] Figure 4 It is a schematic diagram of the internal structure of the pressure valve in the present application.

[0026] Markings in the figure: 1. Evaporation tower; 2. Distilled water recovery tank; 3. Steam pipeline; 4. Connecting pipeline; 5. Pretreatment tank; 6. Filter box; 7. Water inlet pipe; 8. Pressure valve; 9. Control valve; 10. Filter screen; 11. Pull plate; 12. Pull rod; 13. Vertical rod; 14. Spring sleeve; 15. Expansion pipe; 16. Baffle; 17. Opening plate; 18. Liquid guide groove; 19. Recovery tank; 20. Driving motor; 21. Main gear; 22. Secondary gear; 23. Screw block; 24. Scraper; 25. Screw. Detailed Embodiments

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application.

[0028] Embodiment:

[0029] Referring to Figures 1-3 , a p-aminomethylbenzoic acid recovery and reuse device includes an evaporation tower 1. One side surface of the evaporation tower 1 is connected to a connecting pipe 4. The other end surface of the connecting pipe 4 is connected to a filter box 6 and a pretreatment tank 5. A control valve 9 is provided on the surface of the connecting pipe 4 between the pretreatment tank 5 and the filter box 6. One side surface of the pretreatment tank 5 is connected to a water inlet pipe 7. A filter screen 10 is provided inside the filter box 6. A pull plate 11 is connected inside the pretreatment tank 5 through a pull rod 12. Setting a pretreatment structure in the p-aminomethylbenzoic acid recovery and reuse device can ensure subsequent work, such as efficient separation, purification, and environmental protection. It enters the inside of the pretreatment tank 5 through the water inlet pipe 7 for precipitation and stirring. Then, by opening the control valve 9, it can enter the inside of the filter box 6 through the connecting pipe 4, and the large particle impurities in the waste are removed through the filter screen 10. By pulling the pull rod 12, the pull plate 11 can be driven to be discharged outward to extract the sediment inside the pretreatment tank 5.

[0030] Referring to Figure 1 , the top of the evaporation tower 1 is connected to a steam pipe 3. The other end of the steam pipe 3 is connected to a distilled water recovery tank 2. A pressure valve 8 is provided on the surface of the steam pipe 3. The provided steam pipe 3 can recover the distilled liquid inside the evaporation tower 1 into the distilled water recovery tank 2, and the provided pressure valve 8 can play an auxiliary role in this structure.

[0031] Referring to Figures 1-2 , an opening plate 17 is provided on one side surface of the evaporation tower 1. A liquid guide groove 18 is connected to the surface of the evaporation tower 1 below the opening plate 17. The provided opening plate 17 can facilitate the discharge of salt particles outside the evaporation tower 1, and the provided liquid guide groove 18 facilitates the recovery of salt particles.

[0032] Referring to Figures 1-2 , a recovery tank 19 is provided below the liquid guide groove 18, and a recovery tank 19 is provided at the bottom end of the recovery tank 19. The provided liquid guide groove 18 and recovery tank 19 can perform collection work.

[0033] Referring to Figures 1-4, inside the pressure valve 8, a baffle 16 is movably arranged. One side surface of the baffle 16 is connected with a telescopic pipe 15. The other end of the telescopic pipe 15 is connected with a spring sleeve 14. The other end surface of the spring sleeve 14 is connected with a vertical rod 13. By arranging the spring sleeve 14 and the telescopic pipe 15 inside the pressure valve 8, the baffle 16 can be driven to move.

[0034] Refer to Figures 1-2 , on one side surface of the inner bottom end of the evaporation tower 1, a driving motor 20 is arranged. The output end of the driving motor 20 is connected with a main gear 21. And the surface of the main gear 21 is meshed and connected with a secondary gear 22. The middle of the secondary gear 22 is connected with a screw rod 25. Starting the arranged driving motor 20 can drive the main gear 21 to rotate. Through the meshed secondary gear 22, the screw rod 25 can be driven to rotate, so as to drive other structures to move and work.

[0035] Refer to Figures 1-2 , the surface of the screw rod 25 is threadedly connected with a screw block 23. The surface of the screw block 23 is connected with a scraper 24. And the surface of the scraper 24 is in contact with the bottom surface of the evaporation tower 1. When the screw block 23 moves on the surface of the screw rod 25, the scraper 24 can be driven to move, so that the salt particles at the bottom of the evaporation tower 1 can be scraped into the recovery tank.

[0036] The implementation principle of the embodiment of the p-aminomethylbenzoic acid recovery and reuse device of this application is as follows:

[0037] Setting a pretreatment structure in the p-aminomethylbenzoic acid recovery and reuse device can ensure subsequent work, such as the efficient progress of separation, purification and environmental protection. It enters the inside of the pretreatment tank 5 through the water inlet pipe 7 for precipitation and stirring. Then, by opening the control valve 9, it can enter the inside of the filter box 6 through the connecting pipeline 4, and the large particle impurities in the waste are removed through the filter screen 10. And by pulling the pull rod 12, the pull plate 11 can be driven to discharge outward, and the precipitate inside the pretreatment tank 5 can be taken out.

[0038] The above embodiments are only used to illustrate the technical solutions of this application, rather than to limit them; although the above embodiments of this application have been described in detail, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the above embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An apparatus for recycling para - aminomethylbenzoic acid, comprising an evaporation tower (1), characterized in that: One side surface of the evaporation tower (1) is connected with a connecting pipe (4). The other end surface of the connecting pipe (4) is connected with a filtering box (6) and a pretreatment tank (5). A control valve (9) is arranged on the surface of the connecting pipe (4) between the pretreatment tank (5) and the filtering box (6). One side surface of the pretreatment tank (5) is connected with a water inlet pipe (7). A filter screen (10) is arranged inside the filtering box (6). A pull plate (11) is connected inside the pretreatment tank (5) through a pull rod (12).

2. The device for recycling and reusing para - aminomethylbenzoic acid according to claim 1, characterized in that: The top end of the evaporation tower (1) is connected with a steam pipe (3). The other end of the steam pipe (3) is connected with a distilled water recovery tank (2). A pressure valve (8) is arranged on the surface of the steam pipe (3).

3. The p-aminomethylbenzoic acid recovery and reuse device according to claim 1, characterized in that: An opening plate (17) is arranged on one side surface of the evaporation tower (1). A liquid guide groove (18) is connected to the surface of the evaporation tower (1) below the opening plate (17).

4. The recycling and reuse device of para - aminomethylbenzoic acid according to claim 3, characterized in that: A recovery tank (19) is arranged below the liquid guide groove (18). The bottom end of the recovery tank (19) is provided with the recovery tank (19).

5. The a para-aminomethylbenzoic acid recovery and reuse device according to claim 2, wherein: A baffle (16) is movably arranged inside the pressure valve (8). One side surface of the baffle (16) is connected with a telescopic pipe (15). The other end of the telescopic pipe (15) is connected with a spring sleeve (14). The other end surface of the spring sleeve (14) is connected with a vertical rod (13).

6. The p-aminomethylbenzoic acid recovery and reuse device according to claim 1, wherein: A driving motor (20) is arranged on one side surface of the bottom end inside the evaporation tower (1). The output end of the driving motor (20) is connected with a main gear (21). A secondary gear (22) is meshed with the surface of the main gear (21). A screw rod (25) is connected in the middle of the secondary gear (22).

7. The recycling device of para - aminomethylbenzoic acid according to claim 6, characterized in that: A screw block (23) is threadedly connected to the surface of the screw rod (25). A scraping plate (24) is connected to the surface of the screw block (23). The surface of the scraping plate (24) is in contact with the bottom surface of the evaporation tower (1).

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