Efficient esterification reactor
By introducing a high-efficiency flow guiding component and an in-situ catalyst feeding pipe into the esterification reactor, combined with stirring blades driven by a permanent magnet motor, the problems of insufficient reaction and catalyst accumulation in the esterification reactor were solved, achieving rapid and uniform mixing and efficient esterification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-24
AI Technical Summary
Existing esterification reactors suffer from problems such as long reaction times, incomplete reaction in some areas, local overheating or undercooling, and catalyst accumulation leading to incomplete reaction, which affect reaction efficiency and product quality.
Employing a high-efficiency flow guiding component and an in-situ catalyst feeding pipe, the flow guiding tube guides the fluid to flow along a specific path, reducing short circuits and dead zones. The catalyst enters the reaction zone directly through an independent conveying channel, and combined with the stirring blades driven by a permanent magnet motor, it achieves uniform mixing of the reactants.
It improves reaction efficiency, shortens reaction time, ensures uniform catalyst dispersion, promotes thorough mixing of reactants, and enhances esterification reaction rate and product purity.
Smart Images
Figure CN224024993U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to reactor technical field especially relates to a kind of high-efficiency esterification reactor. BACKGROUND
[0002] In industry, the esterification reaction of benzoic acid ester plasticizer production is generally completed in a cylindrical (pot type) reactor. The reaction mixture is under the joint action of a stirrer and baffles, and is in a whole turbulent mixing state during the reaction period. This allows the several raw materials and catalysts to fully contact, thereby completing the esterification reaction process.
[0003] The high-efficiency esterification reactor is a reactor specially designed to improve the efficiency of esterification reaction and the purity of products. Through optimized structural design, it can complete the esterification reaction in a shorter time, thereby improving the overall reaction efficiency and quality.
[0004] The existing high-efficiency esterification reactor has the following disadvantages:
[0005] The existing esterification reactor generally takes a long time for esterification reaction, mostly 4-8 hours, and the esterification rate can only reach more than 95%. Moreover, the fluid may flow along the shortest path. On the one hand, this leads to insufficient reaction in some areas, causing fluid stagnation and insufficient mixing of reactants. On the other hand, local overheating or overcooling affects the reaction rate and product quality.
[0006] The esterification catalyst feeding port of the existing esterification reactor is usually directly arranged on the outer wall of the reactor. When the esterification catalyst is poured in, the catalyst may accumulate near the feeding port, causing local concentration to be too high, which leads to insufficient reaction. Moreover, it takes a longer time for the catalyst to mix with the reactants, prolonging the reaction start-up time and slowing down the work efficiency. SUMMARY
[0007] The utility model provides a kind of high-efficiency esterification reactor, by setting a kind of high-efficiency flow guide component, flow guide cylinder will guide fluid to flow along specific path, reduce short circuit and dead zone, can make reaction mixture increase large flow up and down circulation, thereby effectively solve the problems raised in the above background technology.
[0008] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of high-efficiency esterification reactor, high-efficiency flow guide assembly includes a group of second fixed parts, the bottom of a group of second fixed parts is connected with flow guide cylinder, flow guide cylinder, for reaching the purpose of reaction mixture liquid increases large flow and up and down circular flow, realize the uniform contact of reactant micro, the inside of flow guide cylinder is equipped with catalyst feeding pipe, catalyst feeding pipe, for building independent delivery channel, so that catalyst can be directly transferred to reaction area, the outside of flow guide cylinder is equipped with eight baffles, every two described baffle is symmetrically placed, and each baffle is used to change material flow direction, facilitate the formation of vortex, improve material mixing uniformity.
[0009] Preferably, the top of each support frame is connected with a first fixed part.
[0010] Preferably, the inner surface wall between a group of first fixed parts is encapsulated with a reaction kettle.
[0011] Preferably, one end of a group of second fixed parts is inserted in the inner wall top of the reaction kettle.
[0012] Preferably, one end of the catalyst feeding pipe penetrates the inside of the reaction kettle and extends to the top of the reaction kettle.
[0013] Preferably, the top and bottom of the reaction kettle are respectively provided with a visual feeding port and a discharging port.
[0014] Preferably, the top of the reaction kettle is connected with a third fixed part, and the top of the third fixed part is provided with a permanent magnet motor.
[0015] Preferably, the output end of the permanent magnet motor is connected with a transmission shaft.
[0016] Preferably, the outer surface wall of the transmission shaft is sleeved with two groups of stirring blades.
[0017] Preferably, each group of stirring blades is in four-leaf oblique blade shape, and each group of stirring blades is used to stir reactants and catalysts, to accelerate the mixing of substances and achieve the purpose of uniform mixing, thereby indirectly shortening the reaction time.
[0018] Compared with the prior art, the utility model has the advantages and positive effects that,
[0019] 1. In the utility model, by setting a kind of high-efficiency flow guide assembly, the conventional stirring mode is improved, flow guide cylinder can guide fluid to flow along specific path, reduce short circuit and dead zone, can make reaction mixture liquid increase large flow up and down circular flow, to reach the state of reactant micro fine uniform contact, to promote esterification reaction speed, make flow guide cylinder more uniformly mixed reactants, improve reaction efficiency, under the action of flow guide cylinder, the overturning speed of reaction mixture liquid can be increased to 2.5 to 10 times, that is, can promote the sufficient mixing of reactants, and also can quickly evaporate water on liquid surface and remove.
[0020] 2. The utility model discloses a kind of probe into esterification catalyst feeding pipes, probe into the feeding port pipe inside equipment can directly deliver catalyst to reaction area, ensure that catalyst is uniformly dispersed in reactant, avoid catalyst accumulation near feeding port, catalyst directly enters reaction area, can quickly start reaction, reduce reaction lag time. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 A front view structure perspective view of the efficient esterification reactor is provided for the utility model;
[0022] Figure 2 A bottom view structure perspective view of the efficient esterification reactor is provided for the utility model;
[0023] Figure 3 A high-efficiency flow guide assembly structure diagram of the efficient esterification reactor is provided for the utility model;
[0024] Figure 4 A high-efficiency flow guide assembly partial enlarged view of the efficient esterification reactor is provided for the utility model;
[0025] Figure 5 A partial intercept structure diagram of the efficient esterification reactor is provided for the utility model;
[0026] Figure 6 A high-efficiency flow guide assembly partial enlarged view of the efficient esterification reactor is provided for the utility model.
[0027] Legend: 1, support frame;2, first fixing part;3, reaction kettle;4, high-efficiency flow guide assembly;401, second fixing part;402, flow guide cylinder;403, catalyst feeding pipe;404, baffle;405, third fixing part;406, permanent magnet motor;407, transmission shaft;408, stirring blade;5, visual feeding port;6, discharge port. DETAILED DESCRIPTION
[0028] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model will be further described below in conjunction with the drawings and examples. It should be noted that the embodiments of the present application and the features in the examples can be combined with each other without conflict.
[0029] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, therefore, the utility model is not limited to the specific embodiments disclosed in the following disclosure.
[0030] Example 1, as shown in the accompanying Figure 1 -Figure 3 The utility model provides a technical scheme: an efficient esterification reactor, including a set of support frame 1, a set of support frame 1's top is equipped with efficient flow guide assembly 4, efficient flow guide assembly 4 includes a set of second fixed part 401, a set of second fixed part 401's bottom is connected with flow guide cylinder 402, flow guide cylinder 402, for reaching reaction mixed solution increases the purpose of large flow and up and down annular flow, realizes the uniform contact of reactant micro, the inside of flow guide cylinder 402 is equipped with catalyst feeding pipe 403, catalyst feeding pipe 403, for building independent delivery channel, makes catalyst can directly shift to reaction area, the outside of flow guide cylinder 402 is equipped with eight baffles 404, every two baffles 404 is placed symmetrically, and every baffle 404 is used to change material flow direction, is convenient for the formation of vortex, promotes material mixing uniformity.
[0031] The effect reached by the whole embodiment 1 is: by presetting the above-mentioned component, a complete efficient flow guide assembly 4 is formed, by connecting the flow guide cylinder 402 with the bottom of the second fixed part 401, when the stirring assembly in the reaction kettle is stirring, the flow guide cylinder guides the fluid to flow along a specific path, thereby reducing the occurrence of short circuit and dead zone, and the purpose of increasing the large flow of reaction mixed solution and up and down annular flow is achieved, the uniform contact of reactant micro is realized, secondly, the catalyst feeding pipe 403 is arranged in the inside of the flow guide cylinder 402, the catalyst feeding pipe 403 is used for building an independent delivery channel, so that the catalyst can be directly transferred to the reaction area, which can ensure the uniform dispersion of the catalyst in the reactant, and the catalyst directly enters the reaction area, which can rapidly react, thereby reducing the reaction residence time, eight baffles 404 are arranged outside the flow guide cylinder 402, every two baffles 404 are placed symmetrically, and every baffle 404 is used to change the material flow direction, which is convenient for the formation of vortex and improves the material mixing uniformity, ensures sufficient mixing, and can also reduce the back mixing phenomenon, avoids the uneven concentration of reactants, thereby improving the reaction efficiency.
[0032] Embodiment 2, as shown in the figure Figure 1 -attached Figure 6As shown, the utility model provides a technical scheme: a kind of efficient esterification reactor, the top of each support frame 1 is connected with first fixing piece 2, a group of first fixing piece 2 is encapsulated between inner surface wall, a group of second fixing piece 401 is inserted in the inner wall top of reactor 3, one end of catalyst feeding pipe 403 is penetrated inside reactor 3, and extends to the top of reactor 3, the top and bottom of reactor 3 are equipped with visible feed inlet 5 and discharge port 6 respectively, the top of reactor 3 is connected with third fixing piece 405, third fixing piece 405 is equipped with permanent magnet motor 406 on top, the output of permanent magnet motor 406 is connected with transmission shaft 407, the outer surface wall of transmission shaft 407 is equipped with two groups of stirring blades 408, each group of stirring blades 408 is four-leaf oblique leaf shape, each group of stirring blades 408 is used to agitate reactant and catalyst, to accelerate the purpose of substance mixing and mixing uniformly, indirectly shorten reaction length.
[0033] The effect achieved by the entire embodiment 2 is: by presetting the above components, first, the top of support frame 1 is fully connected with first fixing piece 2, and a group of first fixing piece 2 is encapsulated between inner surface wall, a group of second fixing piece 401 is inserted in the inner wall top of reactor 3, and one end of catalyst feeding pipe 403 is penetrated inside reactor 3, and extends to the top of reactor 3, the top of reactor 3 is connected with third fixing piece 405, third fixing piece 405 is equipped with permanent magnet motor 406 on top, the output of permanent magnet motor 406 is connected with transmission shaft 407, permanent magnet motor 406 is converted into mechanical energy by electric energy to drive transmission shaft 407 to do uniform rotation, the outer surface wall of transmission shaft 407 is equipped with two groups of stirring blades 408, and each group of stirring blades 408 is four-leaf oblique leaf shape, each group of stirring blades 408 is used to agitate reactant and catalyst, to accelerate the purpose of substance mixing and mixing uniformly, indirectly shorten reaction length, visible feed inlet 5 is arranged on the top of reactor 3, staff can directly observe the material state inside reactor, and can adjust in time according to the mixing condition of material, important parameters such as stirring speed, temperature, pressure can be adjusted in real time.
[0034] The working principle of the whole device is: the installation stage: the components to be assembled are placed in a safe area, the purpose is to provide a safe assembly environment for subsequent assembly, and the external power supply is connected, the purpose is to provide energy for the permanent magnet motor 406, first determine the installation position of a set of support frames 1, and make the support frame 1 connected and fixed with the ground through bolts, and connect the first fixing part 2 on the top of each support frame 1 through bolts, and make a set of first fixing parts 2 encapsulated between the inner walls of the reaction kettle 3, and make one end of a set of second fixing parts 401 inserted into the inner wall of the top of the reaction kettle 3, and the bottom of the second fixing part 401 is connected with the flow guide cylinder 402, and the catalyst feeding pipe 403 is arranged in the flow guide cylinder 402, and one end of the catalyst feeding pipe 403 penetrates the inside of the reaction kettle 3 and extends to the top of the reaction kettle 3, and eight baffles 404 are arranged outside the flow guide cylinder 402, every two baffles 404 are symmetrically placed, and the outer wall of each baffle 404 is connected with the inner wall of the reaction kettle 3, and the third fixing part 405 is connected with the top of the reaction kettle 3 through bolts, and the permanent magnet motor 406 is installed on the top of the third fixing part 405, and the output end of the permanent magnet motor 406 is connected with the transmission shaft 407, and the outer wall of the transmission shaft 407 is sleeved with two sets of stirring blades 408, and each set of stirring blades 408 is in the shape of four-leaf inclined blade, and after the above components are installed, the visible feeding port 5 is arranged on the top of the reaction kettle 3, and the discharge port 6 is arranged on the bottom of the reaction kettle 3.
[0035] The working stage of the device is: when all components are assembled, check whether each component is installed and fixed, ensure that it is not loose, and check whether the connecting pipeline is connected and not blocked, when confirming completion, connect the power supply to the device, first inject the raw materials required for production into the tank through the visual feeding port 5, the raw materials will slowly slide into the tank, when filling is completed, inject the catalyst from the catalyst feeding pipe 403, because the catalyst feeding pipe 403 reaches the tank, the catalyst feeding pipe 403 is used to build an independent conveying channel, so that the catalyst can be directly transferred to the reaction area, which can ensure that the catalyst is uniformly dispersed in the reactant, and the catalyst directly enters the reaction area, which can quickly react, thereby reducing the reaction residence time, when the catalyst is filled, the permanent magnet motor 406 is started by connecting the power supply, the permanent magnet motor converts electrical energy into mechanical energy, and the transmission shaft 407 drives the two sets of stirring blades 408 to rotate at a constant speed, the double-layer stirring blades can effectively reduce the dead zone in the reactor, thereby improving the reaction efficiency, and the double-layer stirring blades can better promote the contact between the reactants, improve the mass transfer efficiency, and accelerate the reaction rate, due to the setting of the draft tube 402, the fluid is guided to flow along a specific path, reducing short circuit and dead zone, which can make the reaction mixture increase the up and down circulation of large flow to achieve the state of fine and uniform contact of the reactants, so as to promote the esterification reaction speed, the draft tube makes the reactants more uniformly mixed, improves the reaction efficiency, and under the action of the draft tube 402, the overturning speed of the reaction mixture can be increased by 2.5 to 10 times, that is, it can promote the sufficient mixing of the reactants, and also can quickly evaporate the water on the liquid surface to remove the water, when the above work is completed, the mixed liquid is discharged through the discharge port 6.
[0036] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belongs to the protection scope of the technical scheme of the present application.
Claims
1. A high efficiency esterification reactor comprising a set of support frames (1) characterised in that: It comprises a set of support frames (1), the top of a set of support frames (1) is provided with high-efficiency flow guide assembly (4); The high-efficiency flow guide assembly (4) comprises a set of second fixing parts (401), the bottom of a set of second fixing parts (401) is connected with flow guide cylinder (402), the flow guide cylinder (402) is used for achieving the purpose of increasing the large flow of reaction mixture and up and down circulation, realizing the fine and uniform contact of reactants, the inside of the flow guide cylinder (402) is provided with catalyst feeding pipe (403), the catalyst feeding pipe (403) is used for constructing an independent conveying channel, so that the catalyst can be directly transferred to the reaction area, the outside of the flow guide cylinder (402) is provided with eight baffles (404), every two baffles (404) are placed symmetrically, and each baffle (404) is used for changing the flow direction of materials, facilitating the formation of vortex and improving the uniformity of material mixing.
2. The high efficiency esterification reactor of claim 1, wherein: The top of each support frame (1) is connected with first fixing part (2).
3. A high efficiency esterification reactor as claimed in claim 2, wherein: A set of reaction kettles (3) are packaged between the inner walls of a set of first fixing parts (2).
4. The high efficiency esterification reactor of claim 1, wherein: One end of a set of second fixing parts (401) is inserted into the inner wall of the top of the reaction kettle (3).
5. The high efficiency esterification reactor of claim 1, wherein: One end of the catalyst feeding pipe (403) penetrates the inside of the reaction kettle (3) and extends to the top of the reaction kettle (3).
6. The high efficiency esterification reactor of claim 3, wherein: The top and bottom of the reaction kettle (3) are respectively provided with visual feeding port (5) and discharge port (6).
7. The high efficiency esterification reactor of claim 3, wherein: The top of the reaction kettle (3) is connected with third fixing part (405), and the top of the third fixing part (405) is provided with permanent magnet motor (406).
8. A high efficiency esterification reactor as claimed in claim 7, wherein: The output end of the permanent magnet motor (406) is connected with transmission shaft (407).
9. A high efficiency esterification reactor as claimed in claim 8, wherein: The outer wall of the transmission shaft (407) is sleeved with two sets of stirring blades (408).
10. The high efficiency esterification reactor of claim 9, wherein: Each set of stirring blades (408) is four-leaf oblique blade shape, and each set of stirring blades (408) is used for stirring reactants and catalysts, so as to accelerate the mixing of substances and achieve the purpose of uniform mixing, indirectly shorten the reaction time.