Preparation of water phase solution and oil phase solution integrated stirring reactor

Abstract

The application provides a water phase solution and oil phase solution integrated stirring reaction kettle for preparation, which comprises a reaction kettle barrel, a first stirring cavity, a second stirring cavity, a mixed cavity, a control valve arranged at the outlet end of the first stirring cavity and the second stirring cavity, a first stirring mechanism arranged in the first stirring cavity and used for stirring the water phase solution, a second stirring mechanism arranged in the second stirring cavity and used for stirring the oil phase solution, and a magnetic stirrer arranged in the mixed cavity and used for fully mixing the oil phase solution and the water phase solution. Compared with a traditional stirring kettle, the utility model realizes precise matching of shearing force and controllability of a mixing process through physical isolation and functional division, improves mixing efficiency, and guarantees system stability and process safety.

Description

Technical Field

[0001] This utility model belongs to the field of stirred reaction vessel technology, and specifically relates to a stirred reaction vessel for preparing aqueous and oil phase solutions in one piece. Background Technology

[0002] In many fields such as pharmaceuticals and food, many substances are difficult to dissolve in water and need to be dissolved in an oil phase before they can be combined with an aqueous solution.

[0003] Traditional stirred tank reactors use motors to directly drive the impellers, providing strong shearing force to ensure the full dispersion of oil-phase solutions with high viscosity or containing solid particles; while aqueous solutions have relatively low viscosity and flow easily.

[0004] Therefore, if a stirring mechanism with high shear force is used, excessive turbulence will occur, which will affect its overall stability; while if a stirring mechanism with low shear force is used, the oil phase solution will be insufficiently dispersed.

[0005] Therefore, how to solve the defects in the existing technology has become one of the urgent problems to be solved in the field of stirred reactor technology. Utility Model Content

[0006] In view of the problems existing in the background art, the present invention provides, on the one hand, an integrated stirred reaction vessel for preparing aqueous and oil phase solutions, comprising,

[0007] Reactor body;

[0008] The first stirring chamber is located inside the reactor cylinder;

[0009] The second stirring chamber is located inside the reactor vessel cylinder.

[0010] Furthermore, the inner cavity of the reactor vessel is divided by the first stirring chamber and the second stirring chamber, with the lower half being a mixing chamber;

[0011] Control valves are provided at the outlet ends of both the first and second stirring chambers;

[0012] A first stirring mechanism is disposed in the first stirring chamber and is used to stir the aqueous solution;

[0013] The second stirring mechanism is disposed in the second stirring chamber and is used to stir the oil phase solution;

[0014] A magnetic stirrer is installed in the mixing chamber to thoroughly mix the oil phase solution and the aqueous phase solution.

[0015] Optionally, the first stirring mechanism includes a first stirring motor.

[0016] The first stirring mechanism further includes a first stirring shaft disposed within the first stirring chamber.

[0017] And it is driven by the first stirring motor.

[0018] The first stirring shaft is equipped with at least one set of propeller-type stirring blades.

[0019] Furthermore, the propulsion-type agitator is installed at the upper middle end of the first agitator shaft.

[0020] A straight-bladed agitator is installed at the lower end of the first agitator shaft, away from the propulsion agitator.

[0021] Optionally, the second stirring mechanism includes a second stirring motor.

[0022] The second stirring mechanism further includes a second stirring shaft disposed within the second stirring chamber.

[0023] And it is driven by the second stirring motor.

[0024] A rectangular rotating frame is mounted on the second stirring shaft.

[0025] Furthermore, stirring rods are provided on both sides of the longitudinal end face of the rotating frame.

[0026] Furthermore, S-shaped stirring blades are welded between adjacent sets of stirring rods.

[0027] Optionally, the second stirring shaft is provided with at least one set of connecting parts.

[0028] It is also secured with fastening bolts.

[0029] The connector is provided with two sets of staggered stirring blades.

[0030] Optionally, the magnetic stirrer includes a drive system.

[0031] The drive system is connected to the drive shaft via a magnetic drive.

[0032] An external magnetic rotor is installed on the drive shaft of the reducer of the drive system.

[0033] Furthermore, the inner magnetic rotor used in conjunction with the outer magnetic rotor is mounted on the transmission shaft.

[0034] Optionally, a lower seal is provided below the second bearing of the rotating shaft.

[0035] The lower seal is preferably a double-layer sleeve-type labyrinth seal.

[0036] Optionally, an isolation sleeve is provided between the outer magnetic rotor and the inner magnetic rotor.

[0037] And the isolation sleeve is filled with coolant.

[0038] The isolation sleeve is provided with coolant inlet and outlet for connecting to the circulation pipe assembly;

[0039] A packing seal is provided at the transition section of the drive shaft.

[0040] A cooling jacket is provided on one side of the packing seal.

[0041] In summary, the beneficial effects of this utility model are:

[0042] Compared to traditional stirred tanks, this invention achieves precise matching of shear force and controllability of the mixing process through physical isolation and functional zoning, thereby improving mixing efficiency while ensuring system stability and process safety.

[0043] This invention divides the internal cavity of the reactor vessel into three independently configured chambers. The first stirring chamber is dedicated to the aqueous phase, while the second stirring chamber is for the oil phase. The aqueous phase has low viscosity, and independent stirring prevents excessive turbulence, maintaining system stability. The oil phase has high viscosity or contains solid particles; independent stirring provides sufficient shear force to ensure thorough dispersion. After dispersion marking, the oil phase is mixed with the aqueous phase in the mixing chamber. This partitioned design overcomes the limitation of traditional stirred reactors where a single shear force is insufficient to simultaneously handle both phases. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the integrated stirred reactor for preparing aqueous and oil phase solutions according to this utility model;

[0045] Figure 2 This is a schematic diagram of the structure of the first stirring mechanism in an embodiment of the present invention for preparing an integrated stirred reaction vessel for aqueous and oil phase solutions;

[0046] Figure 3 This is a schematic diagram of the structure of the second stirring mechanism in an embodiment of the present invention for preparing an integrated stirred reaction vessel for aqueous and oil phase solutions;

[0047] Figure 4 This is a schematic diagram of the structure of the magnetic stirrer in an embodiment of the present invention for preparing an integrated stirring reactor for aqueous and oil phase solutions;

[0048] Figure 5 This utility model Figure 1 Schematic diagram of the structure at position A in the middle;

[0049] Figure 6 This utility model Figure 5 A partial structural diagram of the location of the central magnetic drive.

[0050] Figure label:

[0051] 100. Stirred reactor;

[0052] 10. First stirring mechanism; 101. First stirring motor; 102. First stirring shaft; 103. Propeller-type stirring paddle; 104. Straight-blade stirring paddle;

[0053] 20. Second stirring mechanism; 201. Second stirring motor; 202. Second stirring shaft; 203. Rotating frame; 204. Connecting piece; 205. Stirring rod; 206. Stirring blade; 207. Stirring blade;

[0054] 30. Reactor body; 301. First stirring chamber; 302. Second stirring chamber; 303. Mixing chamber;

[0055] 40. Control valve;

[0056] 50. Magnetic stirrer; 501. Stirrer; 502. Magnetic drive; 503. Drive system; 504. Drive shaft; 505. Inner magnetic rotor; 506. Outer magnetic rotor; 507. Drive shaft; 508. Upper seal;

[0057] 5081, Isolation sleeve; 5082, Lower seal; 5083, Sealing sleeve; 5084, Cooling sleeve; 5085, Packing seal. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to facilitate a more thorough understanding of the present utility model and to fully convey the concept of the present utility model to those skilled in the art.

[0059] In the description of this specification, the references to terms such as "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0061] like Figures 1-6 As shown, this embodiment provides an integrated stirred reaction vessel 100 for preparing aqueous and oil phase solutions, including a reaction vessel cylinder 30. A first stirring chamber 301 and a second stirring chamber 302 are welded to the inner wall of the reaction vessel cylinder 30. The adjacent and closely attached side walls of the first stirring chamber 301 and the second stirring chamber 302 are fixedly connected by welding, thereby fixing the first stirring chamber and the second stirring chamber 302 inside the reaction vessel cylinder 30. The first stirring chamber 301 and the second stirring chamber 302 divide the inner cavity of the reaction vessel cylinder 30, with the lower half being a mixing chamber 303.

[0062] Furthermore, the first stirring chamber 301 is provided with a first stirring mechanism 10 for stirring the aqueous solution;

[0063] The second stirring chamber 302 is provided with a second stirring mechanism 20 for stirring the oil phase solution;

[0064] The outlet ends of the first stirring chamber 301 and the second stirring chamber 302 are both provided with control valves 40. The control valves are preferably magnetic control valves. By opening the magnetic control valves, the liquid in the first stirring chamber and the second stirring chamber can be transported to the mixing chamber 303 through the outlet ends.

[0065] Furthermore, the mixing chamber 303 is equipped with a magnetic stirrer 50 for thoroughly mixing the oil phase solution and the aqueous phase solution.

[0066] Those skilled in the art should understand that, compared to traditional stirred tanks, this invention achieves precise matching of shear forces and controllability of the mixing process through physical isolation and functional zoning, thereby improving mixing efficiency while ensuring system stability and process safety.

[0067] This application divides the internal cavity of the reactor vessel into three independently configured chambers. The first stirring chamber is dedicated to the aqueous phase, while the second stirring chamber is for the oil phase. The aqueous phase has low viscosity, and independent stirring avoids excessive turbulence, maintaining system stability. The oil phase has high viscosity or contains solid particles; independent stirring provides sufficient shear force to ensure thorough dispersion. After dispersion marking, the oil phase is mixed with the aqueous phase in the mixing chamber. This partitioned design overcomes the limitation of traditional stirred reactors where a single shear force is insufficient to simultaneously handle both phases.

[0068] Furthermore, the first stirring mechanism 10 includes a first stirring motor 101.

[0069] The first stirring mechanism 10 further includes a first stirring shaft 102 disposed within the first stirring chamber and driven by the first stirring motor 101. At least one set of propeller-type stirring blades 103 are disposed on the first stirring shaft 102, and the propeller-type stirring blades 103 are fixedly installed to the upper middle end of the first stirring shaft 102 by fastening bolts. The propeller-type stirring blades 103 are capable of generating axial flow.

[0070] A straight-bladed impeller 104 is installed at the lower end of the first stirring shaft 102, which is away from the propulsion impeller 103.

[0071] In this embodiment, since the first stirring chamber is filled with a low-viscosity aqueous solution, the first stirring motor 101 drives the propeller-type stirring paddle 103 and the straight-blade stirring paddle 104 on the first stirring shaft 102 to rotate. Axial flow is generated by the upper propeller-type stirring paddle 130. Because the propeller-type stirring paddle generates low turbulence and high circulation volume, excessive turbulence can be effectively avoided. However, due to the low turbulence, the materials may not be fully and uniformly mixed. To solve this problem, this invention adds a straight-blade stirring paddle to the lower end of the first stirring shaft 102. The radial flow generated by the rotation of the straight-blade stirring paddle ensures thorough mixing.

[0072] Furthermore, the second stirring mechanism 20 includes a second stirring motor 201.

[0073] The second stirring mechanism 20 further includes a second stirring shaft 202 disposed in the second stirring chamber 302 and driven by the second stirring motor 201. A rectangular rotating frame 203 is installed on the second stirring shaft 202 by welding or other fixed connection methods. Stirring rods 205 are provided on both sides of the longitudinal end face of the rotating frame 203. An S-shaped stirring blade 207 is welded between two adjacent sets of stirring rods 205.

[0074] The second stirring shaft 202 is provided with at least one set of connecting parts 204 and is fixed by fastening bolts. The connecting parts 204 are provided with two sets of staggered stirring blades 206.

[0075] In this embodiment, by starting the second stirring motor 201, the rotating frame and stirring blades are driven to rotate, which in turn drives the stirring rod and stirring blades set on the rotating frame to rotate. Through the rotation of the stirring blades and the rotating frame, the movement of the high viscosity oil phase is promoted, achieving rapid and uniform dispersion. At the same time, the S-shaped blades form a multi-layer shear surface, effectively overcoming the flow resistance of the high viscosity liquid and preventing the material from adhering to the reactor wall.

[0076] Furthermore, the magnetic stirrer 50 includes a drive system 503, which is composed of a motor and a reducer, and the drive system 503 is connected to the drive shaft 506 via a magnetic drive 502.

[0077] The magnetic drive 502 includes a first bearing and a second bearing.

[0078] An external magnetic rotor 505 is provided on the drive shaft 503 of the reducer of the drive system 503, and an internal magnetic rotor 504 used in conjunction with the external magnetic rotor 505 is provided on the transmission shaft 506.

[0079] During installation, the first bearing is used to support the external magnetic rotor, and the second bearings are installed in pairs in opposite directions to support the drive shaft 503 and the transmission shaft 506. During operation, the second bearing needs to withstand axial load and radial load, so the second bearing is preferably made of high carbon chromium bearing steel. A lower seal 5082 is provided below the second bearing of the rotating shaft, and the lower seal is preferably a double-layer sleeve labyrinth seal.

[0080] This application divides the reactor vessel's internal cavity into three independently configured chambers. The first stirring chamber is dedicated to the aqueous phase, while the second stirring chamber is for the oil phase. The aqueous phase has low viscosity, and independent stirring avoids excessive turbulence, maintaining system stability. The oil phase has high viscosity or contains solid particles, and independent stirring provides sufficient shear force to ensure thorough dispersion. After dispersion marking, to ensure thorough mixing of the aqueous and oil phase solutions within the mixing chambers and to form a stable mixture with a certain degree of stability, a magnetic stirrer can be used. However, magnetic materials demagnetize and fail when used above a certain temperature. To solve the above technical problems, please refer to [reference needed]. Figures 1-6 As shown, an isolation sleeve 5081 is provided between the outer magnetic rotor 505 and the inner magnetic rotor 504, and the isolation sleeve is filled with coolant. The isolation sleeve 5081 is provided with coolant inlet and outlet for connecting to the circulation pipe assembly. The coolant in the isolation sleeve is used to cool the outer magnetic rotor to avoid demagnetization due to overheating.

[0081] A packing seal 5085 is provided at the transition section of the drive shaft 506 to prevent solid particles from entering the isolation sleeve. A cooling sleeve 5084 is provided on one side of the packing seal 5085, and the cooling sleeve is filled with cooling material.

[0082] In practical applications, heat transfer from materials and friction from the drive shaft can cause localized overheating of the seasoning seal, which can then be transferred to the isolation sleeve. To solve this problem, this invention adds a cooling sleeve to cool the packing seal.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not restrictive. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A stirred reactor for preparing an integrated aqueous and oil phase solution, characterized in that, include, Reactor body (30); The first stirring chamber (301) is located inside the reactor cylinder (30); The second stirring chamber (302) is located inside the reactor vessel cylinder (30). The inner cavity of the reactor body (30) is divided by the first stirring chamber (301) and the second stirring chamber (302), with the lower half being the mixing chamber (303). The outlet ends of the first stirring chamber (301) and the second stirring chamber (302) are both provided with control valves (40); The first stirring mechanism (10) is disposed in the first stirring chamber (301) and is used to stir the aqueous solution; The second stirring mechanism (20) is disposed in the second stirring chamber (302) and is used to stir the oil phase solution; A magnetic stirrer (50) is disposed in the mixing chamber (303) to fully mix the oil phase solution and the aqueous phase solution.

2. The integrated stirred reactor for preparing aqueous and oil phase solutions according to claim 1, characterized in that, The first stirring mechanism (10) includes a first stirring motor (101). The first stirring mechanism (10) further includes a first stirring shaft (102) disposed in the first stirring chamber (301). And it is driven by the first stirring motor (101), At least one set of propulsion impellers (103) are provided on the first stirring shaft (102). Furthermore, the propulsion-type stirring paddle (103) is installed at the upper middle end of the first stirring shaft (102). A straight-bladed impeller (104) is installed at the lower end of the first stirring shaft (102) away from the propulsion impeller (103).

3. The integrated stirred reactor for preparing aqueous and oil phase solutions according to claim 2, characterized in that, The second stirring mechanism (20) includes a second stirring motor (201). The second stirring mechanism (20) also includes a second stirring shaft (202) disposed in the second stirring chamber (302). And it is driven by the second stirring motor (201), A rectangular rotating frame (203) is mounted on the second stirring shaft (202). Furthermore, stirring rods (205) are provided on both sides of the longitudinal end face of the rotating frame (203). Furthermore, S-shaped stirring blades (206) are welded between two adjacent sets of stirring rods (205). The second stirring shaft (202) is provided with at least one set of connecting parts (204). It is also secured with fastening bolts. The connector (204) is provided with two sets of staggered stirring blades.

4. The integrated stirred reactor for preparing aqueous and oil phase solutions according to claim 1, characterized in that, The magnetic stirrer (50) includes a drive system (503). The drive system (503) is connected to the drive shaft (506) via a magnetic drive (502). An external magnetic rotor (505) is provided on the drive shaft of the reducer of the drive system (503). The inner magnetic rotor (504) used in conjunction with the outer magnetic rotor (505) is mounted on the transmission shaft (506).

5. The integrated stirred reactor for preparing aqueous and oil phase solutions according to claim 4, characterized in that, A lower seal (5082) is provided below the second bearing located on the drive shaft (506). The lower seal (5082) is a double-layer sleeve-type labyrinth seal.

6. The integrated stirred reactor for preparing aqueous and oil phase solutions according to claim 5, characterized in that, An isolation sleeve (5081) is provided between the outer magnetic rotor (505) and the inner magnetic rotor (504). Furthermore, the isolation sleeve (5081) is filled with coolant. The isolation sleeve (5081) is provided with coolant inlet and outlet for connecting to the circulation pipe assembly; A packing seal (5085) is provided at the transition section of the drive shaft (506). A cooling jacket (5084) is provided on one side of the packing seal (5085).

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