A vacuum distillation apparatus for producing methyl benzoate

Abstract

The utility model provides a kind of for producing methyl benzoate's reduced pressure distillation device, belong to methyl benzoate production technical field;Including bottom plate, the top of bottom plate is sequentially fixedly connected with support, base and shunt component from left to right, the inboard of support top end is fixedly connected with heating jacket, the inboard sliding connection of heating jacket has the distillation component for methyl benzoate production, the bottom end fixedly connected with several supporting plates in the inboard of support, the bottom of distillation component abuts at supporting plate top;The utility model can be rotated by setting shunt component, cooperate with the isolation of upper baffle, can be divided into two different passages with the bottom end of shunt pipe, so that the device can determine evaporation is material or impurity according to the temperature inside distillation tank, and respectively enter two bottom hoses, and then discharge into corresponding collection cylinder, so that the device can separate material and impurity, improve the purification effect of device.

Description

Technical Field

[0001] This utility model relates to the field of methyl benzoate production technology, and in particular to a vacuum distillation apparatus for producing methyl benzoate. Background Technology

[0002] Methyl benzoate is a common chemical product. In the production of methyl benzoate, the raw material needs to be purified by distillation, so a vacuum distillation device is required.

[0003] Patent CN221332795U discloses a vacuum distillation apparatus for producing methyl benzoate, comprising a main tank and a mixing assembly. The main tank has a heating block added to its inner wall, a support column at its lower end, a thermometer installed on the upper left side, and a condenser on the upper right side. The mixing assembly is located inside the main tank and includes a servo motor, a support rod, a stirring rod, a vertical scraper, a mounting block, and a horizontal scraper. The front end of the servo motor is connected to the support rod, and the stirring rod is installed on the outside of the support rod.

[0004] In the above case, the raw material is distilled through the main tank, the vapor is condensed through the condenser tube, and then discharged into the receiving bottle held by the installation component. However, the main tank and the condenser tube are fixed, making it inconvenient to disassemble and clean them. In addition, impurities in the raw material will also evaporate and flow into the receiving bottle, resulting in poor extraction and storage effect of the device. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum distillation apparatus for the production of methyl benzoate, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum distillation apparatus for producing methyl benzoate, comprising a base plate, wherein a support, a base and a flow divider are fixedly connected sequentially from left to right on the top of the base plate; a heating sleeve is fixedly connected to the inner side of the top of the support; a distillation assembly for producing methyl benzoate is slidably connected to the inner side of the heating sleeve; a plurality of trays are fixedly connected to the bottom of the inner side of the support; the bottom of the distillation assembly abuts against the top of the trays; and a condensation assembly is slidably connected to the top of the base, with its two ends threadedly connected to the distillation assembly and the flow divider assembly, respectively.

[0007] In a preferred embodiment, the distillation assembly includes a distillation tank slidably connected to the inner side of the heating jacket, a tank lid slidably connected to the top of the distillation tank, a rotating base rotatably connected to the bottom of the distillation tank, a rotary motor fixedly connected to the top of the base plate, a drive rod fixedly connected to the output end of the motor, and the top end of the drive rod slidably connected to the inner side of the rotating base.

[0008] In a preferred embodiment, a stirring shaft is fixedly connected to the top of the rotating base. The stirring shaft includes scrapers fixedly connected to both sides, which are in close contact with the inner wall of the distillation tank. An outlet pipe is fixedly connected to the top of the distillation tank, and its other end is threadedly connected to the condenser assembly.

[0009] In a preferred embodiment, the condensation assembly includes a retainer slidably connected to the top of the base, a condenser tube fixedly connected to the inner side of the retainer, and an air inlet pipe fixedly connected to one side of the condenser tube.

[0010] In a preferred embodiment, a sealing tube is slidably connected to the top end of the condenser tube, and the air inlet tube includes a No. 1 connecting tube rotatably connected to the side away from the condenser tube.

[0011] In a preferred embodiment, the diversion assembly includes a diversion pipe fixedly connected to the top of the base plate, the top of the diversion pipe being fixedly connected to a top flexible hose, which includes a second connecting pipe rotatably connected to the top end, which is threadedly connected to the bottom end of the condenser assembly, and both sides of the bottom of the diversion pipe being fixedly connected to bottom flexible hoses.

[0012] In a preferred embodiment, a partition is fixedly connected to the middle of the bottom end of the diverter tube, a rotating shaft is rotatably connected to the center of the diverter tube, a forward and reverse motor is fixedly connected to the outside of the diverter tube, its output end is fixedly connected to the rotating shaft, its bottom end is in close contact with the partition, a baffle is fixedly connected to one side of the rotating shaft, its outer side is in close contact with the diverter tube, and collection cylinders are slidably connected to both sides of the bottom of the bottom plate at the bottom of the diverter assembly. The two bottom hoses include a No. 3 connecting pipe rotatably connected to the bottom, and are threadedly connected to the top ends of the two collection cylinders respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model, by setting up a diversion component, can drive the baffle to rotate through the rotating shaft. With the isolation of the partition, the bottom end of the diversion tube can be divided into two different channels. This allows the device to determine whether the material or impurities being evaporated are based on the temperature inside the distillation tank, and then enter the two bottom hoses respectively, and then be discharged into the corresponding collection cylinder. This allows the device to separate the material and impurities, thereby improving the purification effect of the device.

[0014] This utility model, by setting a rotating base, a drive rod, a tank cover, and a retaining seat, allows the distillation tank to be disassembled and assembled inside the support and heating jacket. The cooperation between the rotating base and the drive rod facilitates the rotation of the stirring shaft, and the cooperation between the base and the retaining seat facilitates the disassembly and assembly of the condenser tube. The threaded connection between the gas outlet pipe and the gas inlet pipe facilitates the connection between the distillation tank and the condenser tube. This makes it easy to disassemble and clean the distillation tank and the condenser tube, thus extending the service life of the device. Attached Figure Description

[0015] Figure 1This is a three-dimensional structural diagram of a vacuum distillation apparatus for producing methyl benzoate; Figure 2 A cross-sectional three-dimensional structural diagram of a distillation jar; Figure 3 This is a schematic diagram of the three-dimensional structure of the condenser tube; Figure 4 This is a three-dimensional structural diagram of the shunt component.

[0016] In the diagram: 1. Base plate; 2. Support; 3. Heating jacket; 4. Tray; 5. Distillation tank; 6. Rotary seat; 7. Stirring shaft; 8. Gas outlet pipe; 9. Rotary motor; 10. Drive rod; 11. Base; 12. Locking seat; 13. Condenser; 14. Gas inlet pipe; 15. Diverter pipe; 16. Baffle; 17. Rotating shaft; 18. Baffle; 19. Top hose; 20. Bottom hose; 21. Collection cylinder; 22. Tank lid. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments.

[0018] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention; the conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention are all within the scope of protection claimed by the present invention.

[0019] Please see Figures 1-4 This utility model provides a vacuum distillation apparatus for producing methyl benzoate, comprising a base plate 1. From left to right, a support 2, a base 11, and a diversion assembly are fixedly connected to the top of the base plate 1. A heating jacket 3 is fixedly connected to the inner side of the top of the support 2. A distillation assembly for methyl benzoate production is slidably connected to the inner side of the heating jacket 3. A condenser assembly is slidably connected to the top of the base 11. The distillation assembly includes a distillation tank 5 slidably connected to the inner side of the heating jacket 3. A tank cover 22 is slidably connected to the top of the distillation tank 5. A rotating base 6 is rotatably connected to the bottom of the distillation tank 5. A rotary motor 9 is fixedly connected to the top of the base plate 1, and its output end is fixedly connected to... A drive rod 10 is slidably connected to the inner side of a rotating base 6. A stirring shaft 7 is fixedly connected to the top of the rotating base 6. The stirring shaft 7 includes scrapers fixedly connected to both sides and is tightly fitted to the inner wall of the distillation tank 5. An exhaust pipe 8 is fixedly connected to the top of the distillation tank 5, and its other end is threadedly connected to the condensing assembly. The condensing assembly includes a retainer 12 slidably connected to the top of the base 11. A condensing pipe 13 is fixedly connected to the inner side of the retainer 12. An air inlet pipe 14 is fixedly connected to one side of the condensing pipe 13. A sealing pipe is slidably connected to the top of the condensing pipe 13. The air inlet pipe 14 includes a first connecting pipe rotatably connected to the side away from the condensing pipe 13.

[0020] Open the tank lid 22 and pour the crude product containing methyl benzoate into the distillation tank 5. Close the tank lid 22 to ensure a seal. Turn on the vacuum pump fixedly connected to the top of the distillation tank 5 to evacuate the entire device and reduce the air pressure. Turn on the heating jacket 3 to slowly raise the temperature inside the distillation tank 5. Start the rotary motor 9, which drives the rotating base 6 and the stirring shaft 7 to rotate via the drive rod 10, thereby accelerating the evaporation of the material.

[0021] Please see Figures 1-4 Several support plates 4 are fixedly connected to the bottom of the inner side of the bracket 2. The bottom of the distillation assembly abuts against the top of the support plate 4. Its two ends are threadedly connected to the distillation assembly and the flow distribution assembly, respectively. The flow distribution assembly includes a flow distribution pipe 15 fixedly connected to the top of the base plate 1. A top hose 19 is fixedly connected to the top of the flow distribution pipe 15, which includes a second connecting pipe rotatably connected to the top end. It is threadedly connected to the bottom end of the condenser assembly. Bottom hoses 20 are fixedly connected to both sides of the bottom of the flow distribution pipe 15. A partition plate 16 is fixedly connected to the middle of the bottom end of the flow distribution pipe 15. A rotating shaft 17 is rotatably connected to the center of the flow distribution pipe 15. A forward and reverse motor is fixedly connected to the outside of the diversion pipe 15. Its output end is fixedly connected to the rotating shaft 17, and its bottom end is in close contact with the partition plate 16. A baffle 18 is fixedly connected to one side of the rotating shaft 17, and its outer side is in close contact with the diversion pipe 15. Collection cylinders 21 are slidably connected to both sides of the bottom of the bottom of the bottom plate 1 at the bottom of the diversion assembly. The two bottom hoses 20 include a No. 3 connecting pipe that is rotatably connected to the bottom, and are threadedly connected to the top of the two collection cylinders 21 respectively. Sealing rings are fixedly connected to the inner sides of the No. 1, No. 2 and No. 3 connecting pipes. The baffle 18 includes a sealing gasket fixedly connected to the outer side.

[0022] Observation using a temperature sensor fixedly connected to the top of distillation tank 5 shows that when the temperature is below the boiling point of methyl benzoate, impurities with lower boiling points evaporate. The vapor enters the condenser 13 through the outlet pipe 8 and the inlet pipe 14, condenses into liquid, flows into the top hose 19, enters the distributor pipe 15, and is guided by the baffle 16 and the baffle 18 into the bottom hose 20 on one side, and flows into the corresponding collection cylinder 21. When the temperature reaches the boiling point of methyl benzoate, the forward and reverse motors drive the rotating shaft 17 to rotate, causing the baffle 18 to rotate 180 degrees, exposing another... One side of the bottom hose 20 leads to methyl benzoate entering another collection cylinder 21. When the temperature is much higher than the boiling point of methyl benzoate, the shaft 17 is reversed so that impurities with boiling points much higher than methyl benzoate enter the corresponding collection cylinder 21. This process continues until distillation is complete. Then, the third connecting pipe is rotated to disconnect the bottom hose 20 from the collection cylinder 21, and the collection cylinder 21 is removed. When cleaning the device is required, the first and second connecting pipes are rotated to disassemble both sides of the condenser assembly. The distillation tank 5 and the condenser tube 13 are then pulled out upwards for cleaning.

[0023] The cooperation between the base 11 and the bracket 12 makes the disassembly and assembly of the condenser tube 13 extremely convenient. This not only facilitates regular cleaning and maintenance of the condenser tube 13, but also allows for quick replacement in case of malfunction, reducing equipment downtime. The outlet pipe 8 and the inlet pipe 14 are connected by threads to ensure that steam can flow smoothly from the distillation tank 5 to the condenser tube 13. This also facilitates quick disassembly and reassembly when needed, making the disassembly and assembly of these two key components, the distillation tank 5 and the condenser tube 13, easy and convenient. This not only facilitates daily cleaning and maintenance, but also allows for quick repair or replacement of parts in case of equipment failure, thereby effectively extending the service life of the device.

[0024] During distillation, different substances have different boiling points, so they evaporate at different temperatures. By observing the temperature inside the distillation tank 5, the device can determine whether the currently evaporating substance is methyl benzoate or an impurity. When the evaporating substance is the target material, the vapor flows into the splitter pipe 15 after condensation and is guided by the baffle 18 and the partition 16 into one of the bottom hoses 20. When the evaporating substance is an impurity, the vapor is guided into the other bottom hose 20. This separation mechanism ensures that the material and impurities are collected separately, avoiding mixing, thereby significantly improving the purification effect of the device.

[0025] The working principle and usage process of this utility model are as follows: Open the tank lid 22, pour the crude product containing methyl benzoate into the distillation tank 5, close the tank lid 22 to ensure a seal, turn on the vacuum pump fixedly connected to the top of the distillation tank 5 to evacuate the entire device and reduce the air pressure, turn on the heating jacket 3 to slowly raise the temperature inside the distillation tank 5, start the rotary motor 9, which drives the rotating seat 6 and the stirring shaft 7 to rotate via the drive rod 10, accelerating the evaporation of the material. When the temperature is lower than the boiling point of methyl benzoate, the impurities with lower boiling points evaporate, and the vapor enters the condenser tube 13 through the outlet pipe 8 and the inlet pipe 14, condenses into liquid and flows into the top hose 19. After entering the distribution pipe 15, it is guided by the partition 16 and the baffle 18 to one side. The bottom hose 20 flows into the corresponding collection cylinder 21. When the temperature reaches the boiling point of methyl benzoate, the forward and reverse motors drive the rotating shaft 17 to rotate, causing the baffle 18 to rotate 180 degrees, exposing the bottom hose 20 on the other side. Then, methyl benzoate enters another collection cylinder 21. When the temperature is much higher than the boiling point of methyl benzoate, the rotating shaft 17 is reversed, allowing impurities with boiling points much higher than methyl benzoate to enter the corresponding collection cylinder 21. This process continues until distillation is complete. Then, the third connecting pipe is rotated to disconnect the bottom hose 20 from the collection cylinder 21, and the collection cylinder 21 is removed. When cleaning the device is required, the first and second connecting pipes are rotated to disassemble both sides of the condenser assembly. The distillation tank 5 and the condenser tube 13 are then pulled out upwards for cleaning.

[0026] The vacuum pump, heating jacket 3, rotary motor 9, forward and reverse motor and temperature sensor mentioned above are all prior art disclosed in this utility model, and will not be described in detail here; It should be noted that the distillation apparatus of this application can be used with an existing controller (or controller system), and the telecommunication connection method, circuit layout method and control principle between the controller (or controller system) and the electrical components (vacuum pump, heating jacket 3, rotary motor 9, forward and reverse motor and temperature sensor) of this application are all existing publicly disclosed technical means. At the same time, the controller (or controller system) can adopt conventional and mature existing products in the field, thereby realizing coordinated control of the electrical components (vacuum pump, heating jacket 3, rotary motor 9, forward and reverse motor and temperature sensor) of this application. Furthermore, the technical solution of this application does not involve the improvement of computer programs. Therefore, the specific control method between the controller (or controller system) and the electrical components of this application will not be described in detail here.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum distillation apparatus for producing methyl benzoate, comprising a bottom plate (1), characterized in that, The top of the base plate (1) is fixedly connected from left to right with a bracket (2), a base (11) and a diversion assembly. The inner side of the top of the bracket (2) is fixedly connected with a heating sleeve (3). The inner side of the heating sleeve (3) is slidably connected with a distillation assembly for the production of methyl benzoate. The bottom of the inner side of the bracket (2) is fixedly connected with several trays (4). The bottom of the distillation assembly abuts against the top of the tray (4). The top of the base (11) is slidably connected with a condensation assembly, the two ends of which are threadedly connected to the distillation assembly and the diversion assembly, respectively.

2. The vacuum distillation apparatus for producing methyl benzoate according to claim 1, characterized in that, The distillation assembly includes a distillation tank (5) slidably connected to the inside of the heating jacket (3), a tank lid (22) slidably connected to the top of the distillation tank (5), a rotating base (6) rotatably connected to the bottom of the distillation tank (5), a rotary motor (9) fixedly connected to the top of the base plate (1), and a drive rod (10) fixedly connected to its output end, the top of the drive rod (10) slidably connected to the inside of the rotating base (6).

3. The vacuum distillation apparatus for producing methyl benzoate according to claim 2, characterized in that, The top of the rotating base (6) is fixedly connected to a stirring shaft (7). The stirring shaft (7) includes scrapers fixedly connected on both sides, which are in close contact with the inner wall of the distillation tank (5). The top of the distillation tank (5) is fixedly connected to an outlet pipe (8), and its other end is threadedly connected to the condenser assembly.

4. The vacuum distillation apparatus for producing methyl benzoate according to claim 1, characterized in that, The condensation assembly includes a card holder (12) slidably connected to the top of the base (11), a condenser tube (13) is fixedly connected to the inside of the card holder (12), and an air inlet pipe (14) is fixedly connected to one side of the condenser tube (13).

5. A vacuum distillation apparatus for producing methyl benzoate according to claim 4, characterized in that, The top end of the condenser tube (13) is slidably connected to a sealing tube, and the air inlet tube (14) includes a first connecting tube rotatably connected to the side away from the condenser tube (13).

6. A vacuum distillation apparatus for producing methyl benzoate according to claim 1, characterized in that, The diversion assembly includes a diversion pipe (15) fixedly connected to the top of the base plate (1). The top of the diversion pipe (15) is fixedly connected to a top hose (19), which includes a second connecting pipe rotatably connected to the top end, which is threadedly connected to the bottom end of the condensation assembly. Both sides of the bottom of the diversion pipe (15) are fixedly connected to bottom hoses (20).

7. A vacuum distillation apparatus for producing methyl benzoate according to claim 6, characterized in that, A partition plate (16) is fixedly connected to the middle of the bottom end of the diversion pipe (15). A rotating shaft (17) is rotatably connected to the center of the diversion pipe (15). A forward and reverse motor is fixedly connected to the outside of the diversion pipe (15). Its output end is fixedly connected to the rotating shaft (17). Its bottom end is in close contact with the partition plate (16). A baffle plate (18) is fixedly connected to one side of the rotating shaft (17). Its outer side is in close contact with the diversion pipe (15). A collection cylinder (21) is slidably connected to both sides of the bottom of the bottom of the bottom plate (1). The two bottom hoses (20) include a No. 3 connecting pipe rotatably connected to the bottom and are threadedly connected to the top of the two collection cylinders (21) respectively.

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