Continuous esterification equipment for phenyl alkyl sulfonate production
By using a combination of paddle and turbine agitators in the continuous esterification equipment, the problems of uneven mixing of high-viscosity materials and the entry of impurities are solved, resulting in a more efficient esterification reaction and higher product purity, thus improving the practicality of the equipment.
Patent Information
- Application Number
- CN202520164204.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing continuous esterification equipment suffers from uneven mixing due to insufficient stirring when processing high-viscosity raw materials, which affects the efficiency of the esterification reaction. Furthermore, impurities in the raw materials may enter the reactor, affecting the reaction and the equipment.
A combination of paddle and turbine agitators is used to generate tangential, axial, and radial flows, which are used together to process high-viscosity materials. A filter plate is installed in the connecting pipe to filter impurities.
It improves the mixing uniformity of high-viscosity materials, prevents impurities from entering the reactor, ensures reaction efficiency and stable equipment operation, and enhances the practicality of the device and the purity of the product.
Smart Images
Figure CN223761030U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of alkyl sulfonate phenyl ester production technology, and in particular to a continuous esterification equipment for the production of alkyl sulfonate phenyl esters. Background Technology
[0002] Alkyl sulfonate phenyl esters are organic ester compounds composed of alkyl sulfonic acid groups and phenyl ester groups. They possess chemical stability, water resistance, and lubrication properties, and are used as plasticizers in the plastics industry. Their production requires continuous esterification equipment. In terms of production efficiency, this equipment allows for continuous feeding, reaction, and discharge, avoiding the preparation time of intermittent production. It can start up quickly and operate stably, greatly increasing output. In terms of product quality, the advanced control system can precisely maintain reaction conditions. Stable temperature and raw material ratios ensure the consistency of product purity and performance, and the high degree of automation reduces human error.
[0003] Continuous esterification equipment typically includes a reactor, a feeding system, a product separation device, and a control system. The raw materials are fed into the reactor and stirred and mixed. The mixture after the reaction is distilled and separated, and then liquefied by a condenser to obtain the product.
[0004] In most cases, existing reaction vessels use paddle mixers for stirring, which achieves a relatively simple effect. When the viscosity of the raw materials is high, it may not be possible to achieve sufficient stirring, resulting in uneven mixing and thus affecting the efficiency of the esterification reaction. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a continuous esterification equipment for the production of alkyl sulfonates, aiming to improve the existing technology where the reaction vessel mostly uses a paddle stirrer, which has a relatively simple effect and may not be sufficiently stirred when the raw material viscosity is high, resulting in uneven mixing and thus affecting the efficiency of the esterification reaction.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a continuous esterification device for the production of alkyl sulfonates, comprising a base, a support fixedly connected to the upper surface of the base, a reaction vessel fixedly connected inside the support, a baffle fixedly connected inside the reaction vessel, a motor fixedly connected to one side of the outer wall of the support, a rotating shaft fixedly connected to the output end of the motor, a rotating shaft rotatably connected to the inside of the reaction vessel on one side of its outer wall, and a stirring component for increasing the stirring effect installed inside the rotating shaft;
[0007] The stirring assembly includes a paddle-type stirring paddle, one end of which is slidably connected to the inside of a rotating shaft. A spring is fixedly connected inside the paddle-type stirring paddle, and a locking block is fixedly connected to one end of the spring. A button is slidably connected inside the rotating shaft, and a spring is fixedly connected to one end of the button. A stop block is fixedly connected to one end of the spring. One side of the outer wall of the stop block is in contact with one side of the outer wall of the locking block. A turbine-type stirring paddle is slidably connected inside the rotating shaft, and a snap-fit assembly that is easy to replace and clean is installed inside the turbine-type stirring paddle.
[0008] Furthermore, the snap-fit assembly includes a snap-fit block two, one side of the outer wall of the snap-fit block two is slidably connected to the inside of the turbine-type agitator, one side of the outer wall of the snap-fit block two is fixedly connected to a spring three, one end of the spring three is fixedly connected to the inside of the turbine-type agitator, and a stop block two is slidably connected inside the rotating shaft, one side of the outer wall of the stop block two is in contact with one side of the outer wall of the snap-fit block two.
[0009] Furthermore, a connecting hose is fixedly connected inside the reactor, a connecting pipe is fixedly connected to one end of the connecting hose, and a feeder is fixedly connected to one end of the connecting pipe.
[0010] Furthermore, a mounting bracket is fixedly connected to one side of the outer wall of the connecting pipe, and bolts are threaded inside the mounting bracket.
[0011] Furthermore, a filter plate is slidably connected inside the connecting pipe, and a slot is formed inside the filter plate.
[0012] Furthermore, a third locking block is slidably connected inside the slot, with one end of the third locking block engaging with one end of the bolt.
[0013] Furthermore, a bracket two is fixedly connected to the upper surface of the base.
[0014] Furthermore, both the second support and the first support are fixedly connected to a product separator, which is used to separate the product mixture.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, by setting up a paddle-type agitator and a turbine-type agitator, and driving them to rotate by a motor, the paddle-type agitator generates tangential and axial flow, which enables the material to form a circulating flow in the reactor. The turbine-type agitator rotates and generates strong radial and axial flow. The combined use of them can effectively process high-viscosity materials, thereby solving the problem that in the prior art, when paddle-type agitators are mostly used, the mixing may be insufficient when the raw material viscosity is high, resulting in uneven mixing and affecting the esterification reaction efficiency, thus improving the practicality of the device.
[0017] 2. In this utility model, by providing a filter plate inside the connecting pipe, impurities in the raw materials can be filtered out, preventing impurities from entering the reaction vessel and affecting the reaction or damaging the equipment. When it is necessary to clean or replace the filter plate, the bolts are unscrewed, and the locking block is no longer squeezed, so the filter plate can be pulled out from the connecting pipe. This effectively solves the problem that impurities in the raw materials may affect the reaction and the equipment itself, thus improving the practicality of the device. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural schematic diagram of a continuous esterification equipment for the production of alkyl sulfonates proposed in this utility model.
[0019] Figure 2 This is a schematic diagram of the two-part support structure of a continuous esterification equipment for the production of alkyl sulfonates proposed in this utility model.
[0020] Figure 3 This is a schematic cross-sectional view of the reactor section of a continuous esterification equipment for the production of alkyl sulfonates proposed in this utility model.
[0021] Figure 4 This is a schematic diagram of the paddle-type stirring paddle part of a continuous esterification equipment for the production of alkyl sulfonates proposed in this utility model.
[0022] Figure 5 This is a schematic diagram of the turbine-type agitator section of a continuous esterification equipment for the production of alkyl sulfonates proposed in this utility model.
[0023] Figure 6 This is a schematic diagram of the connecting hose portion of a continuous esterification equipment for the production of alkyl sulfonates proposed in this utility model.
[0024] Figure 7 for Figure 6 Enlarged view of point A in the image.
[0025] Legend:
[0026] 1. Feeder; 2. Base; 3. Support 1; 4. Reactor; 5. Motor; 6. Support 2; 7. Connecting hose; 8. Rotary shaft; 9. Baffle; 10. Paddle mixer; 11. Turbine mixer; 12. Locking block 1; 13. Spring 1; 14. Button; 15. Spring 2; 16. Abutting block 1; 17. Locking block 2; 18. Spring 3; 19. Abutting block 2; 20. Connecting pipe; 21. Filter plate; 22. Mounting bracket; 23. Bolt; 24. Locking block 3; 25. Slot; 26. Product separator. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5This utility model provides an embodiment of a continuous esterification device for the production of alkyl sulfonate phenyl esters, comprising a base 2, which provides a stable support foundation for the entire device. A support frame 3 is fixedly connected to the upper surface of the base 2, and a reaction vessel 4 is fixedly connected inside the support frame 3. The reaction vessel 4 is the key site for the esterification reaction of alkyl sulfonate phenyl esters. A baffle 9 is fixedly connected inside the reaction vessel 4. A motor 5 is fixedly connected to one side of the outer wall of the support frame 3. The motor 5 serves as a power source, transmitting power to the stirring assembly inside the reaction vessel 4 through a rotating shaft 8 connected to its output end. The output end of the motor 5 is fixedly connected to the rotating shaft 8. One side of the outer wall is rotatably connected to the inside of the reactor 4. A stirring assembly for increasing the stirring effect is installed inside the rotating shaft 8. The stirring assembly includes a paddle 10. In its initial state, the paddle 10 is connected to the rotating shaft 8 via a locking block 12 inside. One end of the paddle 10 is slidably connected inside the rotating shaft 8. A spring 13 is fixedly connected inside the paddle 10. Under the action of the spring 13, the locking block 12 pops out and locks into the slot of the rotating shaft 8. A stop block 16, under the action of a spring 15, abuts against the locking block 12, making the paddle 10 stably connected to the rotating shaft 8. One end of the spring 13 is fixed. A locking block 12 is connected to the rotating shaft 8. A button 14 is slidably connected inside the rotating shaft 8. A spring 15 is fixedly connected to one end of the button 14, and a stop block 16 is fixedly connected to one end of the spring 15. One side of the outer wall of the stop block 16 is in contact with one side of the outer wall of the locking block 12. A turbine-type stirring paddle 11 is slidably connected inside the rotating shaft 8. When the turbine-type stirring paddle 11 rotates, it generates strong radial and axial flows, which can effectively handle high-viscosity materials. It draws high-viscosity materials near the vessel wall into the main fluid, enabling better mixing of materials across the entire cross-section of the vessel, improving the stirring effect, and ensuring that the reaction proceeds fully. The turbine-type stirring paddle 11 is internally equipped with... Equipped with a snap-fit assembly for easy replacement and cleaning, the snap-fit assembly includes a snap-fit block 17. The snap-fit block 17 inside the turbine agitator 11 pops out under the action of the spring 3 18 and snaps into the slot of the rotating shaft 8. The abutment block 19 serves to assist in fixing the snap-fit block 17 and realize the connection with the rotating shaft 8. One side of the outer wall of the snap-fit block 17 is slidably connected to the inside of the turbine agitator 11. The spring 3 18 is fixedly connected to one side of the outer wall of the snap-fit block 17. One end of the spring 3 18 is fixedly connected to the inside of the turbine agitator 11. The abutment block 19 is slidably connected inside the rotating shaft 8. One side of the outer wall of the abutment block 19 is in contact with one side of the outer wall of the snap-fit block 17.
[0029] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7A connecting hose 7 is fixedly connected inside the reactor 4. One end of the connecting hose 7 is fixedly connected to a connecting pipe 20. The connecting hose 7 connects the reactor 4 and the connecting pipe 20. It has a certain degree of flexibility, which is convenient for installation and adjustment. Therefore, a feeder 1 is fixedly connected to one end of the connecting pipe 20. The feeder 1 is used to store raw materials and provide a material source for the reaction, and to stably transport the raw materials to the connecting pipe 20. A mounting bracket 22 is fixedly connected to one side of the outer wall of the connecting pipe 20. Bolts 23 are threaded inside the mounting bracket 22. A filter plate 21 is slidably connected inside the connecting pipe 20. The filter plate 21 is located inside the connecting pipe 20 and can filter the raw materials entering the reactor 4. A slot 25 is opened inside the filter plate 21, and a sliding connection is made inside the slot 25. A locking block 24 is attached, with one end of the locking block 24 engaging with one end of the bolt 23. When cleaning or replacing the filter plate 21 is required, the bolt 23 is unscrewed, and the locking block 24 is no longer compressed, allowing the filter plate 21 to be easily pulled out for operation. A bracket 2 6 is fixedly connected to the upper surface of the base 2. Both bracket 2 6 and bracket 1 3 have product separators 26 fixedly connected inside. Bracket 2 6 and bracket 1 3 provide installation positions for the product separator 26, making reasonable use of the equipment space. The product separator 26 is used to separate the product mixture. The product separator 26 utilizes the differences in the physical properties of each component to separate the product mixture after the reaction, obtaining a relatively pure alkyl sulfonate phenyl ester product, while separating unreacted raw materials and by-products.
[0030] Working principle: Raw materials are stored in the feeder 1 and enter the reactor 4 through the connecting pipe 20. A bolt 23 is threaded onto the mounting bracket 22 on the outer wall of the connecting pipe 20. One end of the bolt 23 engages with the locking block 24 in the groove 25 inside the filter plate 21, thus fixing the filter plate 21 inside the connecting pipe 20. During the conveying process, the filter plate 21 filters the raw materials, removing impurities. When cleaning or replacing the filter plate 21 is required, the bolt 23 is unscrewed, and the locking block 24 is no longer compressed. The filter plate 21 can be pulled out from the connecting pipe 20; then the motor 5 starts, driving the rotating shaft 8 to rotate. In the initial state, the paddle mixer 10 is connected to the rotating shaft 8 through its internal locking block 12. The locking block 12 pops out under the action of the spring 13 and locks into the locking groove of the rotating shaft 8, so that the paddle mixer 10 is stably connected to the rotating shaft 8. At this time, the paddle mixer 10 rotates with the rotating shaft 8, and the tangential and axial flows it generates cause the material to form a circulating flow in the reaction vessel 4, and perform preliminary mixing; The turbine-type agitator 11 rotates, generating strong radial and axial flows that entrain high-viscosity materials near the vessel wall into the main fluid, resulting in better mixing of the materials across the entire cross-section of the vessel. When it is necessary to replace or clean the paddle agitator 10 or the turbine agitator 11, first press button 14 to apply greater force to the abutment block 16, causing it to no longer stabilize the locking block 12, but instead compressing the spring 13 inward, thus disengaging the locking block 12 from the rotating shaft 8, thereby disassembling the paddle agitator 10. When disassembling the turbine agitator 11, press the abutment block 2 19, which directly presses the locking block 2 17 into the turbine agitator 11 body, disengaging it from the rotating shaft 8, so the turbine agitator can be easily removed. After the reaction, product separation is performed. The mixture after the reaction enters the product separator 26. The product separator 26 uses the differences in boiling point, solubility, etc. of each component to separate the alkyl sulfonate phenyl ester product from unreacted raw materials, by-products, etc.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A continuous esterification apparatus for the production of alkyl phenyl sulfonates comprising a base (2) characterised in that: The upper surface of the base (2) is fixedly connected with a support one (3), the inside of the support one (3) is fixedly connected with a reaction kettle (4), the inside of the reaction kettle (4) is fixedly connected with a baffle (9), one side of the outer wall of the support one (3) is fixedly connected with a motor (5), the output end of the motor (5) is fixedly connected with a rotating shaft (8), one side of the outer wall of the rotating shaft (8) is rotatably connected in the inside of the reaction kettle (4), the inside of the rotating shaft (8) is mounted with a stirring assembly for increasing stirring effect; The stirring assembly comprises a paddle stirrer (10), one end of the paddle stirrer (10) is slidably connected in the inside of the rotating shaft (8), the inside of the paddle stirrer (10) is fixedly connected with a spring one (13), one end of the spring one (13) is fixedly connected with a clamping block one (12), the inside of the rotating shaft (8) is slidably connected with a button (14), one end of the button (14) is fixedly connected with a spring two (15), one end of the spring two (15) is fixedly connected with a resisting block one (16), one side of the outer wall of the resisting block one (16) is in close contact with one side of the outer wall of the clamping block one (12), the inside of the rotating shaft (8) is slidably connected with a turbine stirrer (11), the inside of the turbine stirrer (11) is mounted with a clamping assembly for facilitating replacement and cleaning.
2. A continuous esterification apparatus for the production of phenyl alkyl sulfonate according to claim 1, characterized in that: The clamping assembly comprises a clamping block two (17), one side of the outer wall of the clamping block two (17) is slidably connected in the inside of the turbine stirrer (11), one side of the outer wall of the clamping block two (17) is fixedly connected with a spring three (18), one end of the spring three (18) is fixedly connected in the inside of the turbine stirrer (11), the inside of the rotating shaft (8) is slidably connected with a resisting block two (19), one side of the outer wall of the resisting block two (19) is in close contact with one side of the outer wall of the clamping block two (17).
3. A continuous esterification apparatus for the production of alkyl phenyl sulfonate according to claim 2, characterized in that: The inside of the reaction kettle (4) is fixedly connected with a connecting hose (7), one end of the connecting hose (7) is fixedly connected with a connecting pipe (20), one end of the connecting pipe (20) is fixedly connected with a feeder (1).
4. A continuous esterification apparatus for the production of alkyl phenyl sulfonate according to claim 3, characterized in that: One side of the outer wall of the connecting pipe (20) is fixedly connected with a mounting bracket (22), the inside of the mounting bracket (22) is threadedly connected with a bolt (23).
5. A continuous esterification apparatus for the production of phenyl alkyl sulfonate according to claim 4, characterized in that: The inside of the connecting pipe (20) is slidably connected with a filter plate (21), the inside of the filter plate (21) is provided with a clamping groove (25).
6. A continuous esterification apparatus for the production of phenyl alkyl sulfonate according to claim 5, characterized in that: The inside of the clamping groove (25) is slidably connected with a clamping block three (24), one end of the clamping block three (24) is in close contact with one end of the bolt (23).
7. A continuous esterification apparatus for the production of phenyl alkyl sulfonate according to claim 1, characterized in that: The upper surface of the base (2) is fixedly connected with a support two (6).
8. A continuous esterification apparatus for the production of alkyl phenyl sulfonate according to claim 7, characterized in that: The inside of the support two (6) and the inside of the support one (3) are both fixedly connected with a product separator (26), the product separator (26) is used for separating product mixture.