A high-efficiency turbulent tubular reactor for waste oil glycerol esterification

Abstract

The utility model discloses a kind of high-efficiency turbulent pipe reactors for waste oil glyceride, it is related to resource recycling technical field, including L-shaped base, the top one end of L-shaped base is fixedly connected with support seat, the top of support seat is fixedly connected with premixing pipe, the lateral wall of premixing pipe is fixedly connected with oil inlet pipe, the top of premixing pipe is fixedly connected with driving bin, the cavity top of premixing pipe is fixedly connected with support pipe, the pipe wall of lower section of support pipe is fixedly connected with multiple mixed stirring spray board.The L-shaped base provided in the utility model, on the basis of reducing resistance and making it high-efficiency reaction, simultaneously speed up mixing efficiency to increase product yield quality, to solve the existing high-efficiency turbulent pipe reactor when being used for waste oil glyceride, because of the high viscosity of waste oil, the problem that the reaction efficiency is relatively low due to the large flow resistance in pipe, and material mixing is uneven, leading to low product yield quality.

Description

Technical Field

[0001] This utility model relates to the field of resource recycling technology, specifically to a high-efficiency turbulent tubular reactor for the glycerol esterification of waste oils. Background Technology

[0002] A high-efficiency turbulent tubular reactor for the glycerol esterification of waste oils refers to a specialized device that can significantly increase the contact area and mass transfer efficiency between waste oils and glycerol by creating a turbulent state within the tubular structure, thereby efficiently promoting the glycerol esterification reaction between the two.

[0003] Existing turbulent tubular reactors, when used for the glycerol esterification of waste oils, suffer from high viscosity, resulting in significant resistance during material flow within the tubes. This hinders rapid and effective mixing and reaction, reducing reaction efficiency. Furthermore, the complex composition of waste oils, containing various impurities and fatty acid glycerides of different chain lengths, necessitates a more uniform reaction environment to ensure the full participation of all components. Current turbulent tubular reactors also suffer from uneven mixing, preventing some reactants from fully contacting the catalyst, leading to incomplete reactions and impacting product yield and quality. In addition, structural defects, such as improper pipe shape, diameter, and internal component placement, further impede uniform mixing and effective heat transfer, exacerbating the problems of low reaction efficiency and uneven mixing. Utility Model Content

[0004] In view of the problems existing in the above-mentioned high-efficiency turbulent flow tubular reactor for glycerol esterification of waste oil, this utility model is proposed.

[0005] Therefore, the purpose of this invention is to provide a high-efficiency turbulent flow tubular reactor for the glycerol esterification of waste oils, which solves the problems of low reaction efficiency caused by the high viscosity of waste oils leading to large flow resistance in the tubes, and low product yield and quality due to uneven material mixing when using existing high-efficiency turbulent flow tubular reactors for the glycerol esterification of waste oils.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A high-efficiency turbulent tubular reactor for the glycerol esterification of waste oil includes an L-shaped base, a support seat fixedly connected to one top end of the L-shaped base, a premixing tube fixedly connected to the top of the support seat, an oil inlet pipe fixedly connected to the side wall of the premixing tube, a drive chamber fixedly connected to the top of the premixing tube, a support tube fixedly connected to the top of the cavity of the premixing tube, and multiple mixing and stirring spray plates fixedly connected to the lower section of the support tube. The drive chamber is equipped with a drive mechanism fixedly connected to the wall of the support tube. A catalyst inlet pipe is fixedly connected to the top of the drive chamber. The bottom of the catalyst inlet pipe passes through the inner wall of the drive chamber and is rotatably connected to the top of the support tube. A high-efficiency shear rotor is fixedly connected to the bottom of the support tube. Multiple supports are fixedly connected to the cavity of the premixing tube. A high-efficiency shear stator is fixedly connected between the supports. One end of the high-efficiency shear rotor is rotatably connected to the top of the inner wall of the high-efficiency shear stator. A heating jacket is fixedly connected to the outer wall of the premixing tube. A U-shaped support is fixedly connected to the top of the L-shaped base. A turbulence sensing tube assembly is fixedly connected to the top of the U-shaped support through an opening. The bottom output port of the premixing tube is fixedly connected to the input port of the turbulence sensing tube assembly through a power supply mechanism. A discharge port control valve is fixedly connected to the bottom output port of the turbulence sensing tube assembly.

[0007] Preferably, the drive mechanism includes a motor, a drive gear, and a gear disc. The motor is fixedly connected to the inner wall of the drive compartment, and the drive gear is fixedly connected to one end of the motor. The gear disc is fixedly connected to the upper section of the support tube wall, and the gear disc and the drive gear are meshed together.

[0008] Preferably, the power supply mechanism includes a delivery port control valve, a pump assembly, a delivery pipe, and a check valve. The delivery port control valve is fixedly connected to the bottom outlet of the premixing pipe, the pump assembly is fixedly connected to the bottom outlet of the delivery port control valve, the delivery pipe is fixedly connected to the top of the turbulence sensing tube assembly, the output end of the pump assembly is fixedly connected to the inlet of the delivery pipe, and a check valve is fixedly connected between the output end of the pump assembly and the inlet of the delivery pipe.

[0009] Preferably, each of the mixing and stirring spray plates is a hollow plate, and multiple liquid outlet holes are opened on the side wall surface.

[0010] Furthermore, the turbulence sensing tube assembly includes a venturi tube, the cavity expansion section of the venturi tube is fixedly connected to a porous baffle plate, the bottom outlet of the venturi tube is fixedly connected to a static mixer, and the top inlet of the venturi tube is fixedly connected to the bottom outlet of the delivery tube.

[0011] Preferably, the heating jacket is a hollow jacket body, and the bottom and top of the side wall are respectively fixedly connected to a heat exchange medium inlet pipe and a heat exchange medium outlet pipe. The side wall of the L-shaped base is fixedly connected to a display controller. The inner side wall of the mixing and stirring spray plate and the hole wall of the liquid outlet are coated with a chromium carbide-nickel-based alloy composite wear-resistant and corrosion-resistant coating.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. This utility model utilizes a high-efficiency shearing rotor and stator to powerfully shear waste oil, reducing its viscosity. The heating jacket further improves its fluidity by providing uniform heating, and the pump assembly provides sufficient conveying pressure. This overcomes the problem of high flow resistance caused by high viscosity in traditional reactors, increasing material conveying efficiency by more than 50%.

[0013] 2. This utility model utilizes a hollow, perforated mixing spray plate to spray the catalyst at multiple points, which is then mixed synchronously with the oil. The turbulence sensing tube assembly with its Chinese-made Churi tube enhances shearing, the porous baffle plate disrupts the flow pattern, and the static mixer deeply reorganizes the materials, thus solving the problem of uneven mixing in traditional equipment. The conversion rate of the glycerol esterification reaction is increased by more than 35% compared with traditional reactors, and the product yield and quality are significantly improved.

[0014] 3. This utility model utilizes a mixing and stirring spray plate to apply a chromium carbide-nickel-based alloy coating and a venturi tube to apply an alumina-zirconia ceramic coating, which is wear-resistant, anti-scaling, and extends service life. The set display controller monitors parameters in real time, and the check valve prevents backflow, and the exhaust and safety structure ensure safety. It is easy to operate and runs stably, reducing maintenance costs and failure risks. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front sectional view of the present invention; Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of part A.

[0017] Explanation of reference numerals in the attached figures: 1. L-shaped base; 2. Support seat; 3. Premixing pipe; 4. Oil inlet pipe; 5. Drive chamber; 6. Support pipe; 7. Mixing and stirring spray plate; 8. Catalyst inlet pipe; 9. High-efficiency shear rotor; 10. Bracket; 11. High-efficiency shear stator; 12. Heating jacket; 13. U-shaped support seat; 14. Turbulence sensing tube assembly; 15. Discharge port control valve; 16. Motor; 17. Drive gear; 18. Gear disc; 19. Conveying port control valve; 20. Pump assembly; 21. Conveying pipe; 22. Check valve; 23. Liquid outlet; 24. Venturi tube; 25. Porous baffle plate; 26. Static mixer; 27. Heat exchange medium inlet pipe; 28. Heat exchange medium outlet pipe; 29. ​​Display controller. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] This utility model discloses a high-efficiency turbulent tubular reactor for the glycerol esterification of waste oils.

[0020] This utility model provides, for example Figure 1-3 The high-efficiency turbulent tubular reactor for glycerol esterification of waste oil shown includes an L-shaped base 1, a support base 2 fixedly connected to one top end of the L-shaped base 1, a premixing pipe 3 fixedly connected to the top of the support base 2, an oil inlet pipe 4 fixedly connected to the side wall of the premixing pipe 3, a drive chamber 5 fixedly connected to the top of the premixing pipe 3, a support pipe 6 fixedly connected to the top of the cavity of the premixing pipe 3, and multiple mixing and stirring spray plates 7 fixedly connected to the lower section of the support pipe 6. The drive chamber 5 is equipped with a drive mechanism fixedly connected to the wall of the support tube 6. A catalyst inlet tube 8 is fixedly connected to the top of the drive chamber 5. The bottom of the catalyst inlet tube 8 passes through the inner wall of the drive chamber 5 and is rotatably connected to the top of the support tube 6. A high-efficiency shear rotor 9 is fixedly connected to the bottom of the support tube 6. Multiple supports 10 are fixedly connected to the cavity of the premixing tube 3. A high-efficiency shear stator 11 is fixedly connected between the supports 10. One end of the high-efficiency shear rotor 9 is rotatably connected to the top of the inner wall of the high-efficiency shear stator 11. A heating jacket 12 is fixedly connected to the outer wall of the premixing tube 3. A U-shaped support 13 is fixedly connected to the other end of the top of the L-shaped base 1. The top of the base 13 is fixedly connected to the turbulence sensing tube assembly 14 through an opening. The bottom outlet of the premixing tube 3 is fixedly connected to the inlet of the turbulence sensing tube assembly 14 through a power supply mechanism. The bottom outlet of the turbulence sensing tube assembly 14 is fixedly connected to the outlet control valve 15. The support base 2 ensures the stable installation of the premixing tube 3 and avoids vibration affecting the mixing effect. The premixing tube 3 provides space for the initial mixing of materials, improving the efficiency of subsequent reactions. The oil inlet pipe 4 facilitates the stable entry of waste oil into the reactor. The drive chamber 5 provides protection and installation space for the drive mechanism. The support pipe 6 serves as the core component for catalyst delivery and stirring drive. This system achieves dual-function integration. The mixing spray plate 7 efficiently mixes the catalyst and grease, solving the problem of uneven mixing of high-viscosity materials. The drive mechanism provides stable rotational power to the support pipe 6, ensuring efficient operation of the mixing spray plate 7 and the shear rotor 9. The catalyst inlet pipe 8 ensures continuous and uniform catalyst addition, and its rotatable connection to the support pipe 6 does not affect its rotation. The high-efficiency shear rotor 9, in conjunction with the stator 11, powerfully shears the high-viscosity grease, reducing viscosity and improving fluidity. The bracket 10 ensures the shear stator 11 is securely installed, improving shearing efficiency. The heating jacket 12 provides heating to the premixing pipe 3. Uniform heating reduces the viscosity of the oil, promoting mixing and reaction. The U-shaped support 13 provides stable support for the turbulence sensing tube assembly 14, reducing the impact of vibration. The turbulence sensing tube assembly 14 enhances turbulence through its flow channel structure, further improving mixing and reaction efficiency. The power supply mechanism provides power for material conveying, ensuring continuous and stable process flow. The discharge control valve 15 at the discharge port can adjust the discharge rate, facilitating matching with subsequent processes. This solves the problem of low reaction efficiency caused by high viscosity of waste oil leading to high flow resistance in the tube when used for glycerol esterification of waste oil, as well as low product yield and quality due to uneven material mixing.

[0021] In order to drive the support tube 6 to rotate stably, such as Figure 2 and 3As shown, the drive mechanism includes a motor 16, a drive gear 17, and a gear disc 18. The motor 16 is fixedly connected to the inner wall of the drive chamber 5, and the drive gear 17 is fixedly connected to one end of the motor 16. The gear disc 18 is fixedly connected to the upper section of the support tube 6. The gear disc 18 and the drive gear 17 are meshed together. The motor 16 provides a stable driving force to ensure that the rotation speed of the support tube 6 is constant. The drive gear 17 meshes with the gear disc 18 for transmission, resulting in high transmission efficiency and fast response. It can accurately control the shearing and stirring intensity and adapt to the processing needs of materials with different viscosities.

[0022] To ensure stable material transport and prevent backflow, such as Figure 1 and 2 As shown, the power supply mechanism includes a conveying port control valve 19, a pump assembly 20, a conveying pipe 21, and a check valve 22. The bottom output port of the premixing pipe 3 is fixedly connected to the conveying port control valve 19, and the bottom output port of the conveying port control valve 19 is fixedly connected to the pump assembly 20. The top of the turbulence sensing tube assembly 14 is fixedly connected to the conveying pipe 21. The output end of the pump assembly 20 is fixedly connected to the input port of the conveying pipe 21, and the check valve 22 is fixedly connected between the output end of the pump assembly 20 and the input port of the conveying pipe 21. The conveying port control valve 19 can be used to adjust the flow rate of the premixed material entering the power supply mechanism to achieve precise control. The pump assembly 20 provides sufficient conveying pressure to overcome the flow resistance of high-viscosity oil. The conveying pipe 21 stably conveys the material to the turbulence sensing tube assembly 14. The check valve 22 effectively prevents material backflow, ensures unidirectional stability of the process, and improves the reliability of system operation.

[0023] To improve the mixing efficiency of catalysts and oils, such as Figure 2 As shown, each mixing spray plate 7 is a hollow plate, and multiple liquid outlet holes 23 are opened on the side wall surface. The hollow plate design allows the catalyst to be sprayed directly from the spray plate and come into contact with the oil simultaneously, improving the mixing uniformity. The multiple liquid outlet holes 23 allow the catalyst to be dispersed at multiple points, expanding the contact area, accelerating the reaction process, and solving the problem of low efficiency in traditional mixing methods.

[0024] To enhance turbulence and mixing within the pipe, such as Figure 1 and 2As shown, the turbulence sensing tube assembly 14 includes a Venturi tube 24. A porous baffle 25 is fixedly connected to the expansion section inside the cavity of the Venturi tube 24. A static mixer 26 is fixedly connected to the bottom outlet of the Venturi tube 24. The top inlet of the Venturi tube 24 is fixedly connected to the bottom outlet of the conveying pipe 21. The Venturi tube 24 utilizes the expansion and contraction flow channels to generate high-speed and low-pressure zones, enhancing material shearing and mixing, and reducing flow resistance. The porous baffle 25 further disrupts the flow pattern, increases turbulence intensity, and improves mixing uniformity. The static mixer 26 continuously divides and reorganizes the material during flow, achieving deep mixing and significantly improving reaction conversion rate and product quality.

[0025] To improve the heating efficiency and wear and corrosion resistance of the device, such as Figure 1 and 2 As shown, the heating jacket 12 is a hollow jacket body, and the bottom and top of the side wall are respectively fixedly connected to the heat exchange medium inlet pipe 27 and the heat exchange medium outlet pipe 28. The side wall of the L-shaped base 1 is fixedly connected to the display controller 29. The inner side wall of the mixing and stirring spray plate 7 and the hole wall of the liquid outlet 23 are coated with a chromium carbide-nickel-based alloy composite wear-resistant and corrosion-resistant coating. The hollow jacket body design allows the heat exchange medium to uniformly surround the premixing pipe 3, resulting in high heating efficiency and uniform temperature distribution. The heat exchange medium inlet pipe 27 and outlet pipe 28 are used to realize the circulation of the heat exchange medium, ensuring stable heating. The display controller 29 can monitor parameters such as temperature, flow rate, and speed in real time, facilitating precise control and improving the convenience and safety of operation. The chromium carbide-nickel-based alloy composite coating significantly improves the wear resistance and corrosion resistance of the spray plate and the hole wall, extending the service life.

[0026] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-efficiency turbulent tubular reactor for the glycerol esterification of waste oils, comprising an L-shaped base (1), characterized in that, The L-shaped base (1) is fixedly connected to a support base (2) at one end. The support base (2) is fixedly connected to a premixing pipe (3). The side wall of the premixing pipe (3) is fixedly connected to an oil inlet pipe (4). The top of the premixing pipe (3) is fixedly connected to a drive chamber (5). The top of the cavity of the premixing pipe (3) is fixedly connected to a support pipe (6). The lower section of the support pipe (6) is fixedly connected to multiple mixing and stirring spray plates (7). The drive chamber (5) is equipped with a drive mechanism fixedly connected to the wall of the support tube (6). A catalyst inlet tube (8) is fixedly connected to the top of the drive chamber (5). The bottom of the catalyst inlet tube (8) passes through the inner wall of the drive chamber (5) and is rotatably connected to the top of the support tube (6). A high-efficiency shear rotor (9) is fixedly connected to the bottom of the support tube (6). Multiple supports (10) are fixedly connected to the cavity of the premixing tube (3). A high-efficiency shear stator (11) is fixedly connected between the supports (10). The high-efficiency shear rotor (9) One end of the premixed tube (3) is rotatably connected to the top of the inner wall of the high-efficiency shear stator (11). A heating jacket (12) is fixedly connected to the outer wall of the premixed tube (3). A U-shaped support (13) is fixedly connected to the other end of the top of the L-shaped base (1). A turbulence sensing tube assembly (14) is fixedly connected to the top of the U-shaped support (13) through an opening. The bottom outlet of the premixed tube (3) is fixedly connected to the inlet of the turbulence sensing tube assembly (14) through a power supply mechanism. A discharge control valve (15) is fixedly connected to the bottom outlet of the turbulence sensing tube assembly (14).

2. The high-efficiency turbulent flow tubular reactor for glycerol esterification of waste oils according to claim 1, characterized in that, The drive mechanism includes a motor (16), a drive gear (17) and a gear disc (18). The inner wall of the drive compartment (5) is fixedly connected to the motor (16), and one end of the motor (16) is fixedly connected to the drive gear (17). The upper section of the support tube (6) is fixedly connected to the gear disc (18), and the gear disc (18) and the drive gear (17) are meshed together.

3. The high-efficiency turbulent flow tubular reactor for glycerol esterification of waste oils according to claim 1, characterized in that, The power supply mechanism includes a delivery port control valve (19), a pump assembly (20), a delivery pipe (21), and a check valve (22). The bottom outlet of the premixing pipe (3) is fixedly connected to the delivery port control valve (19). The bottom outlet of the delivery port control valve (19) is fixedly connected to the pump assembly (20). The top of the turbulence sensing pipe assembly (14) is fixedly connected to the delivery pipe (21). The output end of the pump assembly (20) is fixedly connected to the input end of the delivery pipe (21). A check valve (22) is fixedly connected between the output end of the pump assembly (20) and the input end of the delivery pipe (21).

4. The high-efficiency turbulent flow tubular reactor for glycerol esterification of waste oils according to claim 1, characterized in that, Each of the mixing and stirring spray plates (7) is a hollow plate, and multiple liquid outlet holes (23) are opened on the side wall surface.

5. A high-efficiency turbulent flow tubular reactor for the glycerol esterification of waste oils according to claim 1, characterized in that, The turbulence sensing tube assembly (14) includes a venturi tube (24), with a porous baffle plate (25) fixedly connected to the cavity expansion section of the venturi tube (24), a static mixer (26) fixedly connected to the bottom outlet of the venturi tube (24), and the top inlet of the venturi tube (24) fixedly connected to the bottom outlet of the delivery pipe (21).

6. The high-efficiency turbulent flow tubular reactor for glycerol esterification of waste oils according to claim 1, characterized in that, The heating jacket (12) is a hollow jacket body, and the bottom and top of the side wall are respectively fixedly connected to the heat exchange medium inlet pipe (27) and the heat exchange medium outlet pipe (28). The side wall of the L-shaped base (1) is fixedly connected to the display controller (29). The inner side wall of the mixing and stirring spray plate (7) and the hole wall of the liquid outlet hole (23) are coated with a chromium carbide-nickel-based alloy composite wear-resistant and corrosion-resistant coating.

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