A device for esterification of benzyl acetate

Abstract

The utility model discloses a kind of benzyl acetate esterification reaction equipment, including reaction box, the side fixed connection of reaction box has water storage tank, the top of water storage tank is fixedly connected with filter box, the inside of filter box and reaction box is communicated, the above of filter box and located the side of reaction box is provided with condenser, condenser is fixedly connected with flow guide pipe between filter box, the inside of flow guide pipe and filter box is communicated, the side of reaction box is provided with first feed inlet and second feed inlet, the inner wall of reaction box is rotatably connected with stirring blade, the top of reaction box is provided with stirring assembly.The utility model is washed by being provided with flushing component, the water recovered in water storage tank after esterification is used to flush the inside of reaction box, not only realizes the recycling of resources, avoids waste, it is also convenient to clean the inside of reaction box, ensure its clean, to provide good condition for subsequent reaction work, effectively improve the yield of benzyl acetate and product quality.

Description

Technical Field

[0001] This utility model relates to the field of benzyl acetate manufacturing technology, specifically to a benzyl acetate esterification reaction device. Background Technology

[0002] Benzyl acetate, also known as benzyl acetate, is an aromatic organic compound with the molecular formula C9H10O2. It is an ester formed by acetic acid and benzyl alcohol. At room temperature, benzyl acetate is usually a colorless liquid with a jasmine-like fragrance, so it is often used as a fragrance ingredient and is widely used in cosmetics, perfumes and the food industry.

[0003] In the current benzyl acetate processing and manufacturing process, esterification reaction is usually carried out in a reaction vessel. However, most reaction vessels lack effective cleaning functions, which makes the cleaning of the inside of the reaction vessel inconvenient and easily affects the subsequent use of the reaction vessel, thereby reducing the efficiency and quality of the benzyl acetate esterification reaction. To solve the above problems, we propose a benzyl acetate esterification reaction equipment. Utility Model Content

[0004] The purpose of this invention is to provide an apparatus for the esterification reaction of benzyl acetate to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a benzyl acetate esterification reaction apparatus, comprising a reaction chamber, a water storage tank fixedly connected to one side of the reaction chamber, a filter box fixedly connected to the top of the water storage tank, the filter box communicating with the interior of the reaction chamber, a condenser disposed above the filter box and located on one side of the reaction chamber, a guide pipe fixedly connected between the condenser and the filter box, the guide pipe communicating with the interior of the filter box, a first feed inlet and a second feed inlet opened on one side of the reaction chamber, a stirring blade rotatably connected between the inner walls of the reaction chamber, a stirring assembly disposed on the top of the reaction chamber for driving the stirring blade to rotate, an electromagnetic heater disposed on one side of the reaction chamber, a rinsing assembly for cleaning disposed inside the reaction chamber, and a discharge port opened at the bottom of the reaction chamber.

[0006] As a further preferred embodiment of this technical solution, a fan is fixedly installed on the top of the condenser, and a connecting pipe is fixedly connected between the fan and the reaction chamber, the connecting pipe communicating with the interior of the reaction chamber.

[0007] As a further preferred embodiment of this technical solution, a sliding groove is provided on one side of the filter box, and a filter frame is slidably connected between the inner walls of the sliding groove.

[0008] As a further preferred embodiment of this technical solution, the rinsing assembly includes a dispensing pipe, which is fixedly connected to the inner wall of the reaction tank. A nozzle is provided on the outer side of the dispensing pipe. A water supply pipe is fixedly connected between the water storage tank and the reaction tank. The top end of the water supply pipe communicates with the interior of the dispensing pipe, and the bottom end of the water supply pipe extends into the interior of the water storage tank.

[0009] As a further preferred embodiment of this technical solution, a water pump is fixedly installed between the inner walls of the water storage tank, and the output end of the water pump is fixedly connected to the extension end of the water supply pipe.

[0010] As a further preferred embodiment of this technical solution, the stirring assembly includes a rotating shaft, which is rotatably connected to the top of the inner side of the reaction chamber, and the outer side of the rotating shaft is fixedly connected to the stirring blade. The top end of the rotating shaft extends to the top of the reaction chamber and is fixedly connected to a worm gear.

[0011] As a further preferred embodiment of this technical solution, the top of the reaction chamber is fixedly connected to an mounting plate and a fixing plate, and a worm gear is rotatably connected between the mounting plate and the fixing plate, the worm gear meshing with a worm wheel.

[0012] As a further preferred embodiment of this technical solution, a stirring motor is fixedly installed on one side of the mounting plate, and the output end of the stirring motor passes through the mounting plate and is fixedly connected to the worm gear.

[0013] This invention provides an apparatus for the esterification reaction of benzyl acetate, which has the following beneficial effects: (1) By setting up a rinsing component, the water recovered after the esterification reaction in the water storage tank is used to rinse the inside of the reaction tank. This not only realizes the recycling of resources and avoids waste, but also facilitates the cleaning of the inside of the reaction tank, ensuring its cleanliness, thereby providing good conditions for subsequent reaction work and effectively improving the yield and product quality of benzyl acetate.

[0014] (2) This utility model drives the stirring blades to rotate between the inner walls of the reaction chamber through the stirring assembly, thereby fully stirring the raw materials, ensuring that the raw materials are heated evenly and react fully, and effectively improving the performance of the benzyl acetate esterification reaction equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the reaction chamber structure of this utility model; Figure 4 This is a schematic diagram of the filter frame structure of this utility model; In the diagram: 1. Reaction tank; 2. Water storage tank; 3. Filter box; 4. Condenser; 5. Electromagnetic heater; 6. First feed inlet; 7. Second feed inlet; 8. Mounting plate; 9. Fixing plate; 10. Worm gear; 11. Worm wheel; 12. Fan; 13. Connecting pipe; 14. Water supply pipe; 15. Filter frame; 16. Guide pipe; 17. Separating pipe; 18. Nozzle; 19. Rotating shaft; 20. Stirring blade; 21. Discharge port; 22. Water pump; 23. Stirring motor; 24. Slide chute. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] This utility model provides a technical solution: such as Figures 1-4 As shown in this embodiment, a benzyl acetate esterification reaction apparatus includes a reaction chamber 1. A water storage tank 2 is fixedly connected to one side of the reaction chamber 1. A filter box 3 is fixedly connected to the top of the water storage tank 2. The filter box 3 communicates with the interior of the reaction chamber 1. A condenser 4 is arranged above the filter box 3 and on one side of the reaction chamber 1. A guide pipe 16 is fixedly connected between the condenser 4 and the filter box 3. The guide pipe 16 communicates with the interior of the filter box 3. A first feed inlet 6 and a second feed inlet 7 are opened on one side of the reaction chamber 1. The inner walls of the reaction chamber 1 are rotatably connected to... The reaction chamber 1 is equipped with a stirring blade 20 and a stirring assembly at the top. The stirring assembly is used to drive the stirring blade 20 to rotate. An electromagnetic heater 5 is installed on one side of the reaction chamber 1. A rinsing assembly for cleaning is installed inside the reaction chamber 1. A discharge port 21 is opened at the bottom of the reaction chamber 1. A fan 12 is fixedly installed on the top of the condenser 4. A connecting pipe 13 is fixedly connected between the fan 12 and the reaction chamber 1. The connecting pipe 13 communicates with the inside of the reaction chamber 1. A chute 24 is opened on one side of the filter box 3. A filter frame 15 is slidably connected between the inner walls of the chute 24.

[0018] In the esterification reaction of benzyl acetate, the raw materials (specifically a mixture of benzyl acid and ethanol) and the acidic catalyst are first injected into the reaction chamber 1 through the first inlet 6 and the second inlet 7 (both inlets 6 and 7 are equipped with solenoid valves to control the injection volume of raw materials and acidic catalyst). Next, the equipment is connected to an external power source and powered on. Then, the electromagnetic heater 5 is activated using a controller. The electromagnetic heater 5 heats the mixture inside the reaction chamber 1 to the appropriate temperature required for the esterification reaction. Subsequently, the stirring assembly drives the stirring blades 20 to rotate between the inner walls of the reaction chamber 1, ensuring uniform heating and complete reaction of the mixture, resulting in the production of benzyl acetate and water. After the reaction is complete, the electromagnetic heater 5 heats the interior of the reaction tank 1 to a suitable temperature based on the boiling point of water, thereby converting the water into water vapor. Then, the blower 12 transports the water vapor to the condenser 4 along the connecting pipe 13, where it is converted into liquid water. The liquid water then flows into the filter box 3 through the guide pipe 16. At the same time, the liquid water passes through the filter frame 15 (made of stainless steel) inside the chute 24 to filter impurities and is then recycled to the interior of the water storage tank 2 for rinsing. This achieves the separation of benzyl acetate and water. Finally, the finished benzyl acetate is discharged through the discharge port 21 (an electromagnetic valve is installed on the outside of the discharge port 21 to control the discharge amount of the finished benzyl acetate).

[0019] After benzyl acetate is completely discharged, the water in the water storage tank 2 can be used to flush the inside of the reaction tank 1 through the flushing component, thereby cleaning the inside of the reaction tank 1 for subsequent use and improving the performance of the benzyl acetate esterification reaction equipment.

[0020] like Figures 1-4 As shown, the rinsing assembly includes a dispensing pipe 17, which is fixedly connected to the inner wall of the reaction tank 1. A nozzle 18 is provided on the outer side of the dispensing pipe 17. A water supply pipe 14 is fixedly connected between the water storage tank 2 and the reaction tank 1. The top end of the water supply pipe 14 communicates with the inside of the dispensing pipe 17, and the bottom end of the water supply pipe 14 extends into the inside of the water storage tank 2. A water pump 22 is fixedly installed between the inner wall of the water storage tank 2, and the output end of the water pump 22 is fixedly connected to the extension end of the water supply pipe 14.

[0021] Water from the storage tank 2 is pumped by water pump 22 to the distribution pipe 17 via water supply pipe 14, and then the interior of the reaction tank 1 is rinsed by nozzle 18, thereby further improving the quality of the benzyl acetate esterification reaction.

[0022] like Figures 1-4As shown, the stirring assembly includes a rotating shaft 19, which is rotatably connected to the top of the inner side of the reaction chamber 1. The outer side of the rotating shaft 19 is fixedly connected to the stirring blade 20. The top end of the rotating shaft 19 extends to the top of the reaction chamber 1 and is fixedly connected to a worm gear 11. The top of the reaction chamber 1 is fixedly connected to a mounting plate 8 and a fixing plate 9. A worm gear 10 is rotatably connected between the mounting plate 8 and the fixing plate 9. The worm gear 10 meshes with the worm gear 11. A stirring motor 23 is fixedly installed on one side of the mounting plate 8. The output end of the stirring motor 23 passes through the mounting plate 8 and is fixedly connected to the worm gear 10.

[0023] The stirring motor 23 drives the worm gear 10 to rotate between the mounting plate 8 and the fixed plate 9. Then, through the meshing between the worm gear 10 and the worm wheel 11, the rotating shaft 19 drives the stirring blade 20 to rotate between the inner walls of the reaction chamber 1, thereby improving the efficiency of the benzyl acetate esterification reaction.

[0024] This invention provides an esterification reaction device for benzyl acetate. The specific working principle is as follows: During the esterification reaction of benzyl acetate, the raw materials (specifically a mixture of benzyl acid and ethanol) and the acidic catalyst are first injected into the reaction chamber 1 through the first feed port 6 and the second feed port 7 according to the required proportions. Then, the device is connected to an external power source and powered on. The controller then activates the electromagnetic heater 5, which heats the mixture inside the reaction chamber 1 to the appropriate temperature required for the esterification reaction. Subsequently, the stirring motor 23 drives the worm gear 10 to rotate between the mounting plate 8 and the fixed plate 9. The meshing between the worm gear 10 and the worm wheel 11 drives the rotating shaft 19 to stir the mixture. The blade 20 rotates between the inner walls of the reaction chamber 1 to ensure that the mixture is heated evenly and reacts fully, producing benzyl acetate and water. After the reaction is complete, the electromagnetic heater 5 heats the inside of the reaction chamber 1 to a suitable temperature according to the boiling point of water, thereby converting the water into water vapor. Then, the blower 12 transports the water vapor to the condenser 4 along the connecting pipe 13, and the condenser 4 converts it into liquid water, which then flows into the filter box 3 through the guide pipe 16. At the same time, the liquid water passes through the filter frame 15 inside the chute 24 to filter impurities and is then recycled to the inside of the water storage tank 2 for rinsing. This achieves the separation of benzyl acetate and water. Finally, the finished benzyl acetate is discharged through the discharge port 21.

[0025] After benzyl acetate is completely discharged, water from the storage tank 2 can be pumped by water pump 22 along the water supply pipe 14 to the liquid distribution pipe 17, and then water from the storage tank 2 can be discharged and rinsed through the nozzle 18 to clean the inside of the reaction tank 1, thereby facilitating subsequent use and completing the use of the benzyl acetate esterification reaction equipment.

[0026] 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 and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for the esterification reaction of benzyl acetate, comprising a reaction chamber (1), characterized in that: A water storage tank (2) is fixedly connected to one side of the reaction chamber (1). A filter box (3) is fixedly connected to the top of the water storage tank (2). The filter box (3) is connected to the interior of the reaction chamber (1). A condenser (4) is provided above the filter box (3) and on one side of the reaction chamber (1). A guide pipe (16) is fixedly connected between the condenser (4) and the filter box (3). The guide pipe (16) is connected to the interior of the filter box (3). A first feed port (6) and a second feed port (7) are provided on one side of the reaction chamber (1). A stirring blade (20) is rotatably connected between the inner walls of the reaction chamber (1). A stirring assembly is provided on the top of the reaction chamber (1). The stirring assembly is used to drive the stirring blade (20) to rotate. An electromagnetic heater (5) is provided on one side of the reaction chamber (1). A rinsing assembly for cleaning is provided inside the reaction chamber (1). A discharge port (21) is provided at the bottom of the reaction chamber (1).

2. The benzyl acetate esterification reaction apparatus according to claim 1, characterized in that: A fan (12) is fixedly installed on the top of the condenser (4), and a connecting pipe (13) is fixedly connected between the fan (12) and the reaction chamber (1), and the connecting pipe (13) communicates with the interior of the reaction chamber (1).

3. The benzyl acetate esterification reaction apparatus according to claim 1, characterized in that: A groove (24) is provided on one side of the filter box (3), and a filter frame (15) is slidably connected between the inner walls of the groove (24).

4. The benzyl acetate esterification reaction apparatus according to claim 1, characterized in that: The rinsing assembly includes a dispensing pipe (17), which is fixedly connected to the inner wall of the reaction tank (1). A nozzle (18) is provided on the outside of the dispensing pipe (17). A water supply pipe (14) is fixedly connected between the water storage tank (2) and the reaction tank (1). The top end of the water supply pipe (14) communicates with the inside of the dispensing pipe (17), and the bottom end of the water supply pipe (14) extends into the inside of the water storage tank (2).

5. The benzyl acetate esterification reaction apparatus according to claim 4, characterized in that: A water pump (22) is fixedly installed between the inner walls of the water storage tank (2), and the output end of the water pump (22) is fixedly connected to the extension end of the water supply pipe (14).

6. The benzyl acetate esterification reaction apparatus according to claim 1, characterized in that: The stirring assembly includes a rotating shaft (19), which is rotatably connected to the top of the inner side of the reaction chamber (1). The outer side of the rotating shaft (19) is fixedly connected to the stirring blade (20). The top end of the rotating shaft (19) extends to the top of the reaction chamber (1) and is fixedly connected to a worm gear (11).

7. The benzyl acetate esterification reaction apparatus according to claim 6, characterized in that: The top of the reaction chamber (1) is fixedly connected to an mounting plate (8) and a fixing plate (9), and a worm gear (10) is rotatably connected between the mounting plate (8) and the fixing plate (9), and the worm gear (10) meshes with a worm wheel (11).

8. The benzyl acetate esterification reaction apparatus according to claim 7, characterized in that: A stirring motor (23) is fixedly installed on one side of the mounting plate (8), and the output end of the stirring motor (23) passes through the mounting plate (8) and is fixedly connected to the worm gear (10).

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