Distillation device for bronopol production

Abstract

The utility model discloses a distillation device for bronopol production, which comprises a storage tank arranged on a working table, a distillation retort arranged above the working table, a discharge valve arranged at the lower end of the distillation retort, a feeding pipe arranged at the upper end of the distillation retort, a heating component arranged at the lower end of the distillation retort, and a discharge valve arranged at the lower end of the heating component, the cross section of the heating assembly is arranged in a circular ring shape; the low-boiling-point substance collecting tank is arranged above the workbench, a gas guide pipe is arranged between the low-boiling-point substance collecting tank and the distillation retort, and an insertion opening is formed in the upper end of the low-boiling-point substance collecting tank; the gear motor is arranged above the distillation retort, a stirring paddle is arranged in the distillation retort, the stirring mechanism arranged in the distillation device is used for stirring bronopol, so that bronopol is fully mixed and heated, a low-boiling-point solvent is evaporated more quickly, the gas guide pipe is obliquely arranged, low-boiling-point solvent steam can be discharged in time, backflow is prevented, and the distillation efficiency is improved. The bronopol distillation production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bronopol production, in particular to a distillation device for bronopol production. Background Technique

[0002] Bronopol, also known as bromonitropropanediol, is a white to light yellow, yellowish brown crystalline powder at room temperature, odorless and tasteless, soluble in water, ethanol, and propylene glycol, and insoluble in chloroform, acetone, benzene, etc. It will decompose slowly in alkaline aqueous solution and has a corrosive effect on some metals, such as aluminum. Bronopol is mainly used as a preservative and bactericide, added to cosmetics such as shampoos, balms, and creams during the processing, with a concentration of 0.01%-0.02% in cosmetics, and can also be used in detergents, fabric treatment agents, etc. As a bactericide, it can effectively control a variety of plant pathogenic bacteria. Treating cotton seeds can prevent cotton black arm disease and bacterial blight caused by cotton angular leaf spot bacteria, and there is no phytotoxicity to cotton. It can also be used for rice bakanae disease. The recommended application concentration is 800-1000mg / L. It is also used in industrial circulating water, paper pulp, coatings, plastics, cosmetics, wood, cooling water circulation systems, and for sterilization, mildew prevention, corrosion prevention, and algae killing in industrial applications.

[0003] Chinese Patent Publication No. is CN217612970U, and the authorization announcement date is October 21, 2022. A distillation device for bronopol production, which relates to the technical field of bronopol production devices. The lower end of the stirring shaft is symmetrically provided with first stirring blades with an arc-shaped cross-section. Between the lowermost end of the first stirring blades and the support rod, there are second stirring blades with a rectangular cross-section. One end of the second stirring blades is provided with a flow disturbance notch; a third stirring blade is arranged in the middle of the stirring shaft. The first stirring blades are close to the inner wall of the distillation kettle body to stir the materials in the kettle, and the stirring effect is good. The second stirring blades enhance the stirring effect of the first stirring blades. At the same time, the flow disturbance notch greatly improves the mixing and stirring effect of the materials at the bottom of the kettle, making the materials heated more evenly, so that the components can be heated and evaporated more thoroughly, improving the purity of the product. The third stirring blade stirs the materials in the upper and middle parts of the distillation kettle body, so that the overall materials in the kettle are fully stirred and heated, shortening the distillation cycle.

[0004] In the existing distillation device, bronopol is poured into the distillation tank, and bronopol is evaporated by heating the distillation tank to evaporate the low-boiling solvent in bronopol. The distillation tank adopts a single stirring mode, and bronopol is not stirred evenly, and the low-boiling solvent cannot be evaporated completely, which requires a longer time for distillation, reducing the distillation production efficiency and not meeting the use requirements. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a distillation device for bronopol production, so as to solve the problems presented in the above background technology. In the existing distillation device, bronopol is poured into the distillation tank, and bronopol is evaporated by heating the distillation tank. The low-boiling solvent in bronopol is distilled out. The distillation tank adopts a single stirring mode, resulting in uneven stirring of bronopol, incomplete evaporation of the low-boiling solvent, longer distillation time required, reduced distillation production efficiency, and inability to meet the usage requirements.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions: A distillation device for bronopol production, including a workbench, further including:

[0007] A storage groove, which is arranged on the workbench. Above the workbench, there is a distillation tank, and one end of the distillation tank extends into the interior of the storage groove. A discharge valve is arranged at the lower end of the distillation tank. A feeding pipe is arranged at the upper end of the distillation tank, and both the feeding pipe and the discharge valve are integrally connected to the distillation tank. Above the feeding pipe, there is a piston cover, and the piston cover is threadedly connected to the feeding pipe. A heating component is arranged at the lower end of the distillation tank, and the heating component is fixedly connected to the distillation tank. The cross-section of the heating component is circularly arranged, and the heating component is arranged outside the discharge valve;

[0008] A low-boiling substance collection tank, which is arranged above the workbench. A gas guide pipe is arranged between the low-boiling substance collection tank and the distillation tank, and one end of the gas guide pipe is integrally connected to the upper end of the distillation tank. An insertion port is arranged at the upper end of the low-boiling substance collection tank. The gas guide pipe is penetrated through the insertion port, and the gas guide pipe is slidably connected to the low-boiling substance collection tank;

[0009] A reduction motor, which is arranged above the distillation tank, and the reduction motor is connected to the distillation tank by screws. A stirring paddle is arranged inside the distillation tank, and one end of the stirring paddle is connected to the output end of the reduction motor.

[0010] Preferably, a heat preservation outer shell is arranged outside the distillation tank, and the heat preservation outer shell is fixedly connected to the distillation tank. Below the workbench, there are two support seats, and the support seats are connected to the workbench by screws.

[0011] Preferably, a temperature sensor is arranged at the upper end of the distillation tank, and the temperature sensor is integrally connected to the distillation tank. The temperature sensor is arranged on one side of the reduction motor.

[0012] Preferably, a condensation sleeve is arranged outside the gas guide pipe, and the condensation sleeve is integrally connected to the gas guide pipe. Below the outside of the condensation sleeve, there is a mounting rack, and the mounting rack is fixedly connected to the workbench and the condensation sleeve. A second water inlet is arranged at the lower end of the condensation sleeve, and a second water outlet is arranged at the upper end of the condensation sleeve, and both the second water inlet and the second water outlet are integrally connected to the condensation sleeve.

[0013] Preferably, heat exchange tubes are provided on the outer wall of the distillation tank, and the heat exchange tubes are integrally connected to the distillation tank. The heat exchange tubes are spirally wound and connected outside the distillation tank, and the heat exchange tubes are arranged inside the heat preservation housing. A first water inlet and a first water outlet are provided on one side of the heat preservation housing, and the first water inlet and the first water outlet are respectively connected to both ends of the heat exchange tubes.

[0014] Preferably, flexible scraping plates are provided on both sides of the stirring paddle, and the flexible scraping plates are fixedly connected to the stirring paddle. The flexible scraping plates are attached to the inner wall of the distillation tank, and the flexible scraping plates on both sides of the stirring paddle are arranged at equal intervals with an offset up and down.

[0015] Preferably, a sealing ring is arranged inside the socket, and the sealing ring is integrally connected to the low-boiling substance collecting tank. The sealing ring is arranged outside the air duct. An exhaust pipe is provided at the upper end of the low-boiling substance collecting tank, and the exhaust pipe is integrally connected to the low-boiling substance collecting tank. A semi-permeable membrane is arranged at the top of the low-boiling substance collecting tank, and the semi-permeable membrane is fixedly connected to the low-boiling substance collecting tank. The semi-permeable membrane is arranged below the exhaust pipe.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. Through the settings of the distillation tank, heating component, temperature sensor, reduction motor, stirring paddle and flexible scraping plate in the device of the present utility model, the heating component heats from the bottom of the distillation tank to increase the temperature inside the distillation tank, and uses high temperature to evaporate bronopol. Low-boiling substances become steam and enter the air duct. When the steam contacts the air duct, it will quickly cool down and the steam is transformed into liquid for collection, realizing the distillation of bronopol. The temperature sensor measures the distillation temperature inside the distillation tank to facilitate the control of the distillation temperature. The reduction motor drives the stirring paddle to rotate. As the stirring paddle rotates, the bronopol in the distillation tank is stirred. The flexible scraping plate rotates along with the stirring paddle and fits the inner wall of the distillation tank, scraping off and mixing the bronopol attached to the inner wall of the distillation tank, so that the bronopol is fully mixed and heated, improving the distillation efficiency of bronopol;

[0018] 2. Through the settings of the condensation sleeve, second water inlet and second water outlet in the device of the present utility model, cold water is injected into the condensation sleeve through the second water inlet and then flows out from the second water outlet. The cold water flows in the condensation sleeve and contacts the air duct to cool the steam in the air duct, and condenses the steam into liquid, which flows along the air duct into the low-boiling substance collecting tank for collection;

[0019] 3. Through the settings of the first water inlet, first water outlet and heat exchange tubes in the device of the present utility model, cold water is injected into the heat exchange tubes through the first water inlet and then flows out from the first water outlet. The cold water flowing in the heat exchange tubes absorbs and transfers the heat on the shell of the distillation tank, indirectly cooling the materials inside the distillation tank. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 It is a sectional view of the distillation tank of the present utility model;

[0022] Figure 3 For the present utility model Figure 2 Partial enlarged view of area A;

[0023] Figure 4 It is a connection relationship diagram of the condensation sleeve and the air duct of the present utility model;

[0024] Figure 5 It is a connection relationship diagram of the air duct and the low-boiling-point substance collection tank of the present utility model.

[0025] In the figure: 1, workbench; 2, support seat; 3, distillation tank; 4, feeding pipe; 5, reduction motor; 6, temperature sensor; 7, heat preservation shell; 8, first water inlet; 9, first water outlet; 10, storage groove; 11, mounting bracket; 12, air duct; 13, condensation sleeve; 14, second water inlet; 15, second water outlet; 16, low-boiling-point substance collection tank; 17, exhaust pipe; 18, piston cover; 19, heat exchange pipe; 20, stirring paddle; 21, discharge valve; 22, heating component; 23, flexible scraper; 24, socket; 25, sealing ring; 26, semi-permeable membrane. Detailed Description of the Invention

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] Please refer to Figures 1-5 , an embodiment provided by the present utility model: A distillation device for bronopol production, including a workbench 1, further including:

[0028] A storage groove 10, which is arranged on the workbench 1. Above the workbench 1, there is a distillation tank 3, and one end of the distillation tank 3 extends into the interior of the storage groove 10. A discharge valve 21 is arranged at the lower end of the distillation tank 3, and a feeding pipe 4 is arranged at the upper end of the distillation tank 3. The feeding pipe 4 and the discharge valve 21 are integrally connected to the distillation tank 3. Above the feeding pipe 4, there is a piston cover 18, and the piston cover 18 is threadedly connected to the feeding pipe 4. A heating component 22 is arranged at the lower end of the distillation tank 3, and the heating component 22 is fixedly connected to the distillation tank 3. The cross-section of the heating component 22 is circular ring-shaped, and the heating component 22 is arranged outside the discharge valve 21;

[0029] The low-boiling point substance collection tank 16 is arranged above the workbench 1. A gas guide pipe 12 is arranged between the low-boiling point substance collection tank 16 and the distillation tank 3. One end of the gas guide pipe 12 is integrally connected to the upper end of the distillation tank 3. An insertion port 24 is arranged at the upper end of the low-boiling point substance collection tank 16. The gas guide pipe 12 is arranged through the insertion port 24, and the gas guide pipe 12 is slidably connected to the low-boiling point substance collection tank 16;

[0030] The reduction motor 5 is arranged above the distillation tank 3, and the reduction motor 5 is connected to the distillation tank 3 by screws. A stirring paddle 20 is arranged inside the distillation tank 3, and one end of the stirring paddle 20 is connected to the output end of the reduction motor 5.

[0031] During use: Remove the piston cover 18 and add bronopol to the distillation tank 3 through the feeding pipe 4. Turn on the heating component 22 to heat from the bottom of the distillation tank 3 to raise the temperature inside the distillation tank 3. Evaporate bronopol using high temperature. The low-boiling substances turn into steam and enter the gas guide pipe 12. The steam will quickly cool down when contacting the gas guide pipe 12, and the steam is condensed into liquid and flows into the low-boiling point substance collection tank 16 along the gas guide pipe 12 for collection, realizing the distillation of bronopol; When distilling, turn on the reduction motor 5 to drive the stirring paddle 20 to rotate. As the stirring paddle 20 rotates, stir the bronopol in the distillation tank 3, so that the bronopol is fully mixed and heated, improving the distillation efficiency of bronopol.

[0032] Please refer to Figure 1 and Figure 2 As shown in, a heat preservation outer shell 7 is arranged outside the distillation tank 3, and the heat preservation outer shell 7 is fixedly connected to the distillation tank 3. Support seats 2 are arranged below the workbench 1. There are two support seats 2, and the support seats 2 are connected to the workbench 1 by screws. The heat preservation outer shell 7 can reduce heat loss and improve the heat energy utilization efficiency.

[0033] Please refer to Figure 1 As shown in, a temperature sensor 6 is arranged at the upper end of the distillation tank 3, and the temperature sensor 6 is integrally connected to the distillation tank 3. The temperature sensor 6 is arranged on one side of the reduction motor 5. Measure the distillation temperature inside the distillation tank 3 through the temperature sensor 6 to facilitate the control of the distillation temperature.

[0034] Please refer to Figure 1 and Figure 4, a condensation sleeve 13 is provided outside the air duct 12, and the condensation sleeve 13 is integrally connected to the air duct 12. An installation frame 11 is provided below the outside of the condensation sleeve 13, and the installation frame 11 is fixedly connected to the workbench 1 and the condensation sleeve 13. A second water inlet 14 is provided at the lower end of the condensation sleeve 13, and a second water outlet 15 is provided at the upper end of the condensation sleeve 13. The second water inlet 14 and the second water outlet 15 are both integrally connected to the condensation sleeve 13. Cold water is injected into the condensation sleeve 13 through the second water inlet 14 and then flows out from the second water outlet 15. The cold water flows in the condensation sleeve 13 and contacts the air duct 12 to cool the steam in the air duct 12.

[0035] Please refer to Figure 1 , Figure 2 and Figure 3 , a heat exchange tube 19 is provided on the outer wall of the distillation tank 3, and the heat exchange tube 19 is integrally connected to the distillation tank 3. The heat exchange tube 19 is spirally wound and connected outside the distillation tank 3, and the heat exchange tube 19 is provided inside the heat preservation housing 7. A first water inlet 8 and a first water outlet 9 are provided on one side of the heat preservation housing 7, and the first water inlet 8 and the first water outlet 9 are respectively connected to both ends of the heat exchange tube 19. Cold water is injected into the heat exchange tube 19 through the first water inlet 8 and then flows out from the first water outlet 9. The cold water flows in the heat exchange tube 19 to absorb and transfer the heat on the shell of the distillation tank 3, indirectly cooling the materials in the distillation tank 3.

[0036] Please refer to Figure 2 and Figure 3 , flexible scraping plates 23 are provided on both sides of the stirring paddle 20, and the flexible scraping plates 23 are fixedly connected to the stirring paddle 20. The flexible scraping plates 23 are attached to the inner wall of the distillation tank 3, and the flexible scraping plates 23 on both sides of the stirring paddle 20 are arranged at equal intervals with an offset up and down. As the flexible scraping plates 23 rotate with the stirring paddle 20 and rotate along the inner wall of the distillation tank 3, the bronopol attached to the inner wall of the distillation tank 3 is scraped off and mixed, improving the distillation effect of bronopol.

[0037] Please refer to Figure 1 and Figure 5 , a sealing ring 25 is provided inside the socket 24, and the sealing ring 25 is integrally connected to the low-boiling-point substance collecting tank 16. The sealing ring 25 is provided outside the air duct 12. An exhaust pipe 17 is provided at the upper end of the low-boiling-point substance collecting tank 16, and the exhaust pipe 17 is integrally connected to the low-boiling-point substance collecting tank 16. A semi-permeable membrane 26 is provided at the top of the low-boiling-point substance collecting tank 16, and the semi-permeable membrane 26 is fixedly connected to the low-boiling-point substance collecting tank 16. The semi-permeable membrane 26 is provided below the exhaust pipe 17. The sealing ring 25 ensures the sealing performance of the connection between the air duct 12 and the low-boiling-point substance collecting tank 16, and the exhaust pipe 17 discharges the excess gas in the low-boiling-point substance collecting tank 16.

[0038] Working principle: Remove the piston cover 18 and add bronopol from the feeding pipe 4 into the distillation tank 3. Turn on the heating component 22 to heat from the bottom of the distillation tank 3, raise the temperature inside the distillation tank 3, and evaporate bronopol using high temperature. The temperature sensor 6 measures the distillation temperature inside the distillation tank 3. Substances with low boiling points turn into steam and enter the gas guide pipe 12. The steam will rapidly cool down when contacting the gas guide pipe 12. Cold water is injected into the condensation jacket 13 through the second water inlet 14 and then flows out from the second water outlet 15. The cold water flows in the condensation jacket 13 and contacts the gas guide pipe 12 to cool the steam inside the gas guide pipe 12, condensing the steam into a liquid and flowing along the gas guide pipe 12 into the low-boiling substance collection tank 16 for collection, realizing the distillation of bronopol. When distilling, turn on the reduction motor 5 to drive the stirring paddle 20 to rotate. As the stirring paddle 20 rotates, it stirs the bronopol in the distillation tank 3, making the bronopol fully mixed and heated. The flexible scraper 23 rotates along the inner wall of the distillation tank 3 as the stirring paddle 20 rotates, scraping off and mixing the bronopol attached to the inner wall of the distillation tank 3, improving the distillation efficiency of bronopol. After distillation is completed, cold water is injected into the heat exchange pipe 19 through the first water inlet 8 and then flows out from the first water outlet 9. The cold water flowing in the heat exchange pipe 19 absorbs and transfers the heat on the shell of the distillation tank 3, indirectly cooling the materials inside the distillation tank 3.

[0039] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distillation device for bronopol production, comprising a workbench (1), characterized in that, It further includes: A storage groove (10) is provided on the workbench (1). Above the workbench (1), a distillation tank (3) is provided, and one end of the distillation tank (3) extends into the interior of the storage groove (10). A discharge valve (21) is provided at the lower end of the distillation tank (3), and a feeding pipe (4) is provided at the upper end of the distillation tank (3). The feeding pipe (4) and the discharge valve (21) are integrally connected to the distillation tank (3). Above the feeding pipe (4), a piston cover (18) is provided, and the piston cover (18) is threadedly connected to the feeding pipe (4). A heating component (22) is provided at the lower end of the distillation tank (3), and the heating component (22) is fixedly connected to the distillation tank (3). The cross-section of the heating component (22) is circular, and the heating component (22) is provided outside the discharge valve (21). A low-boiling-point substance collection tank (16) is provided above the workbench (1). A gas guide pipe (12) is provided between the low-boiling-point substance collection tank (16) and the distillation tank (3), and one end of the gas guide pipe (12) is integrally connected to the upper end of the distillation tank (3). An insertion port (24) is provided at the upper end of the low-boiling-point substance collection tank (16). The gas guide pipe (12) is provided in a penetrating manner with the insertion port (24), and the gas guide pipe (12) is slidably connected to the low-boiling-point substance collection tank (16). A reduction motor (5) is provided above the distillation tank (3), and the reduction motor (5) is connected to the distillation tank (3) by screws. A stirring paddle (20) is provided inside the distillation tank (3), and one end of the stirring paddle (20) is connected to the output end of the reduction motor (5).

2. The distillation device for bronopol production according to claim 1, characterized in that: A heat-insulating outer shell (7) is provided outside the distillation tank (3), and the heat-insulating outer shell (7) is fixedly connected to the distillation tank (3). Support seats (2) are provided below the workbench (1). There are two support seats (2), and the support seats (2) are connected to the workbench (1) by screws.

3. A distillation apparatus for bronopol production according to claim 1, characterized in that: A temperature sensor (6) is provided at the upper end of the distillation tank (3), and the temperature sensor (6) is integrally connected to the distillation tank (3). The temperature sensor (6) is provided on one side of the reduction motor (5).

4. A distillation device for bronopol production according to claim 1, characterized in that: A condensation sleeve (13) is provided outside the gas guide pipe (12), and the condensation sleeve (13) is integrally connected to the gas guide pipe (12). Below the outside of the condensation sleeve (13), a mounting bracket (11) is provided, and the mounting bracket (11) is fixedly connected to the workbench (1) and the condensation sleeve (13). A second water inlet (14) is provided at the lower end of the condensation sleeve (13), and a second water outlet (15) is provided at the upper end of the condensation sleeve (13). The second water inlet (14) and the second water outlet (15) are integrally connected to the condensation sleeve (13).

5. A distillation device for bronopol production according to claim 1, characterized in that: A heat exchange tube (19) is provided on the outer wall of the distillation tank (3), and the heat exchange tube (19) is integrally connected to the distillation tank (3). The heat exchange tube (19) is spirally wound and connected outside the distillation tank (3), and the heat exchange tube (19) is arranged inside the heat preservation outer shell (7). A first water inlet (8) and a first water outlet (9) are provided on one side of the heat preservation outer shell (7), and the first water inlet (8) and the first water outlet (9) are respectively connected to both ends of the heat exchange tube (19).

6. The distillation device for bronopol production according to claim 1, characterized in that: Flexible scrapers (23) are provided on both sides of the stirring paddle (20), and the flexible scrapers (23) are fixedly connected to the stirring paddle (20). The flexible scrapers (23) are in contact with the inner wall of the distillation tank (3), and the flexible scrapers (23) on both sides of the stirring paddle (20) are arranged at equal intervals with an offset up and down.

7. The distillation device for bronopol production according to claim 1, characterized in that: A sealing ring (25) is provided inside the socket (24), and the sealing ring (25) is integrally connected to the low-boiling-point substance collection tank (16). The sealing ring (25) is arranged outside the air guide pipe (12). An exhaust pipe (17) is provided at the upper end of the low-boiling-point substance collection tank (16), and the exhaust pipe (17) is integrally connected to the low-boiling-point substance collection tank (16). A semi-permeable membrane (26) is provided at the top of the low-boiling-point substance collection tank (16), and the semi-permeable membrane (26) is fixedly connected to the low-boiling-point substance collection tank (16). The semi-permeable membrane (26) is arranged below the exhaust pipe (17).

Images