Stirring equipment for Mannich base synthesis
By setting up a stirring mechanism and a discharge mechanism in the Mannich reactor, and using spiral blades and auxiliary stirring blades to ensure uniform mixing of raw materials, the problem of low raw material mixing efficiency was solved, and efficient synthesis of Mannich bases was achieved.
Patent Information
- Application Number
- CN202520021423.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-06
AI Technical Summary
The existing Mannich reactor has a simple stirring structure, which leads to low mixing efficiency of raw materials and easy agglomeration when the mixture is not fully stirred, thus affecting the synthesis effect.
The mixing mechanism uses a motor to drive the spiral blades and rotating drum to mix the raw materials. The auxiliary mixing blades ensure uniform mixing, and the discharge mechanism uses a spring assembly to achieve self-locking and sealing discharge, avoiding waste of unreacted raw materials.
This method achieves uniform and complete reaction of raw materials, avoids adverse reactions caused by incomplete stirring, and improves synthesis efficiency and the practicality of the equipment.
Smart Images
Figure CN223761038U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to mannich base synthetic technique field, especially, it relates to a kind of stirring equipment for mannich base synthesis. BACKGROUND
[0002] Mannich reaction is also called Mannich reaction, and can also be called aminomethylation or aminomethylation according to the different products, which refers to the condensation of compounds containing active hydrogen with formaldehyde and amine to form amino compounds, the reaction of aldimine and methylene carbonyl compound is also regarded as mannich reaction, mannich base is relatively stable, and unsaturated ketone can be obtained by methylation and Hofmann elimination reaction or decomposition reaction with base during distillation, the latter can react with nucleophilic reagent to occur michael addition, which is a very useful synthetic precursor, but it is generally unstable and easy to polymerize, so mannich base decomposition is generally used to generate unsaturated ketone and react with other reagents in situ.
[0003] However, the stirring structure of part of the reaction kettle device for synthesizing mannich base is relatively simple, and the two raw materials are usually poured into the reaction kettle together, and the rotating stirring blade is used to stir and mix the two raw materials, the two raw materials are poured into the reaction kettle together, and the stirring and mixing method has relatively low efficiency, and there may be the problem of premature reaction and clumping of raw materials when not completely stirred, which affects the subsequent synthesis and preparation of mannich base. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of stirring equipment for mannich base synthesis, by being provided with stirring mechanism, utilize motor to drive several spiral vanes rotation by first rotating shaft, cooperate with rotary drum, the second raw material is flowed into the receiving pipe by first feeding pipe, rotating drives receiving pipe to mix the second raw material evenly into the first raw material, ensure that two raw materials are evenly and fully reacted, solve the problem that two raw materials are poured into reaction kettle together and stirred and mixed possibly exist adverse reaction.
[0005] To solve the above technical problems, the utility model is realized by the following technical solutions:
[0006] The utility model is a kind of stirring equipment for mannich base synthesis, including reaction kettle shell, stirring mechanism and discharge mechanism are arranged on the reaction kettle shell;
[0007] The stirring mechanism comprises a driving assembly, a mixing assembly and a sub-stirring assembly, the driving assembly comprises a motor fixedly connected to the top surface of the reaction kettle shell, the inner top wall of the reaction kettle shell is fixedly connected with a connecting cylinder, the inner wall of the connecting cylinder is rotatably connected with a limiting ring, the bottom surface of the limiting ring is fixedly connected with a rotating cylinder, the inner wall of the rotating cylinder is fixedly connected with a first rotating shaft, and the top end of the first rotating shaft is fixedly connected with the output end of the motor.
[0008] Further, the mixing assembly comprises a first feeding pipe fixedly connected to the top surface of the reaction kettle shell, and the tail end of the first feeding pipe extends to the inner wall of the reaction kettle shell and is fixedly connected with the connecting cylinder.
[0009] Further, the outer wall of the rotating cylinder is fixedly connected with a plurality of receiving pipes, the outer wall of each of the plurality of receiving pipes is fixedly connected with a spiral blade, and the outer wall of each of the plurality of receiving pipes is provided with a plurality of discharge holes.
[0010] Further, the sub-stirring assembly comprises a fixing frame fixedly connected to the inner bottom wall of the reaction kettle shell, the outer wall of the first rotating shaft is rotatably connected with the inner wall of the fixing frame, the outer wall of the first rotating shaft is fixedly connected with a plurality of sub-stirring blades, and the top surface of the reaction kettle shell is fixedly connected with a second feeding pipe.
[0011] Further, the discharging mechanism comprises a discharging assembly, a spring assembly and a locking assembly, the discharging assembly comprises a discharging pipe fixedly connected to the bottom surface of the reaction kettle shell, the inner wall of the discharging pipe is fixedly connected with a receiving frame, the bottom end of the first rotating shaft is rotatably connected with the top surface of the receiving frame, and the inner wall of the discharging pipe is rotatably connected with a sealing piece.
[0012] Further, the spring assembly comprises a fixing block fixedly connected to the outer wall of the discharging pipe, the inner wall of the fixing block is rotatably connected with a second rotating shaft, the left end of the second rotating shaft extends to the inner wall of the discharging pipe and is fixedly connected with the sealing piece, and the top end of the second rotating shaft extends to the right side of the fixing block and is fixedly connected with a handle.
[0013] Further, the inner wall of the handle is fixedly connected with two springs, the outer wall of the second rotating shaft is interactively connected with a button, and the right side of the button is fixedly connected with the left ends of the two springs.
[0014] Further, the right side of the fixing block is provided with a clamping groove, the inner wall of the clamping groove is slidably connected with a clamping block, and the inner wall of the clamping block is fixedly connected with the outer wall of the button.
[0015] The utility model has the following beneficial effects:
[0016] 1. By setting the stirring mechanism, the first rotating shaft is driven by the motor to rotate a plurality of spiral blades, and the second material is mixed into the first material through the first feeding pipe into the receiving pipe, and the receiving pipe is uniformly mixed into the first material, which ensures that the two materials are uniformly and fully reacted, and a plurality of rotating auxiliary stirring blades are arranged to stir the material at the discharge port, which avoids the reaction of the two materials due to incomplete stirring.
[0017] 2. By setting the discharging mechanism, the elasticity of the spring is utilized to facilitate the staff to rotate the clamping handle by pressing the button, and the clamping block is clamped into the clamping groove, which realizes the self-locking effect of the sealing piece on the discharge pipe, avoids the waste of the unreacted material in the reactor shell due to the rotation of the handle, and further improves the practicability of the device.
[0018] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed for the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor.
[0020] Figure 1 It is a schematic diagram of the overall structure of the present application;
[0021] Figure 2 It is a schematic diagram of the front view of the present application;
[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the discharging mechanism of the present application;
[0023] Figure 4 It is Figure 2 It is a schematic diagram of the enlarged structure at position A;
[0024] Figure 5 It is Figure 3 It is a schematic diagram of the enlarged structure at position B.
[0025] In the drawings, the components represented by each reference numeral are listed as follows:
[0026] 1, reactor shell; 2, stirring mechanism; 3, discharge mechanism; 21, motor; 22, connecting barrel; 23, limiting ring; 24, rotating drum; 25, first rotating shaft; 26, first feeding pipe; 27, receiving pipe; 28, spiral blade; 29, discharge hole; 210, fixing frame; 211, auxiliary stirring blade; 212, second feeding pipe; 31, discharge pipe; 32, receiving frame; 33, sealing piece; 34, fixing block; 35, second rotating shaft; 36, handle; 37, spring; 38, button; 39, clamping groove; 310, clamping block. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0028] Please refer to Figures 1-5 The utility model discloses a kind of stirring equipment for Mannich base synthesis, including reactor shell 1, reactor shell 1 is provided with stirring mechanism 2 and discharge mechanism 3, it is characterized in that:
[0029] Stirring mechanism 2 includes driving assembly, mixing assembly and auxiliary stirring assembly, driving assembly includes motor 21 fixedly connected on the top surface of reactor shell 1, the inner top wall of reactor shell 1 is fixedly connected with connecting barrel 22, the inner wall of connecting barrel 22 is rotatably connected with limiting ring 23, the bottom surface of limiting ring 23 is fixedly connected with rotating drum 24, the inner wall of rotating drum 24 is fixedly connected with first rotating shaft 25, and the top end of first rotating shaft 25 is fixedly connected with the output end of motor 21.
[0030] As shown in Figure 1 , Figure 2 and Figure 4 , mixing assembly includes first feeding pipe 26 fixedly connected on the top surface of reactor shell 1, and the tail end of first feeding pipe 26 extends to the inner wall of reactor shell 1 and is fixedly connected with connecting barrel 22, the outer wall of rotating drum 24 is fixedly connected with a plurality of receiving pipes 27, the outer wall of a plurality of receiving pipes 27 is fixedly connected with spiral blade 28, a plurality of receiving pipes 27 are provided with a plurality of discharge holes 29 on the outer wall, auxiliary stirring assembly includes fixing frame 210 fixedly connected on the inner bottom wall of reactor shell 1, the outer wall of first rotating shaft 25 is rotatably connected with the inner wall of fixing frame 210, the outer wall of first rotating shaft 25 is fixedly connected with a plurality of auxiliary stirring blades 211, and the top surface of reactor shell 1 is fixedly connected with second feeding pipe 212.
[0031] By setting the stirring mechanism 2, the first shaft 25 is driven by the motor 21 to rotate the screw blades 28, and the second material is mixed into the first material through the first feeding pipe 26, the receiving pipe 27, and the rotating drum 24, so that the two materials are uniformly and fully reacted, and the auxiliary stirring blades 211 are arranged to stir the material at the discharge port, which avoids the incomplete reaction of the two materials.
[0032] As shown in Figure 2 , Figure 3 and Figure 5 , the discharge mechanism 3 includes a discharge assembly, a spring assembly and a locking assembly. The discharge assembly includes a discharge pipe 31 fixedly connected to the bottom surface of the reaction kettle shell 1, a receiving frame 32 fixedly connected to the inner wall of the discharge pipe 31, and a first rotating shaft 25 rotatably connected to the top surface of the receiving frame 32. The inner wall of the discharge pipe 31 is rotatably connected to a sealing piece 33. The spring assembly includes a fixed block 34 fixedly connected to the outer wall of the discharge pipe 31, a second rotating shaft 35 rotatably connected to the inner wall of the fixed block 34, and a handle 36 fixedly connected to the top end of the second rotating shaft 35. The inner wall of the handle 36 is fixedly connected to two springs 37. The outer wall of the second rotating shaft 35 is interactively connected to a button 38. The right side of the button 38 is fixedly connected to the left ends of the two springs 37. The right side of the fixed block 34 is provided with a clamping groove 39. The inner wall of the clamping groove 39 is slidably connected to a clamping block 310. The inner wall of the clamping block 310 is fixedly connected to the outer wall of the button 38.
[0033] By setting the discharge mechanism 3, the elasticity of the spring 37 is utilized to facilitate the rotation of the clamping handle 36 by pressing the button 38, so that the clamping block 310 is clamped into the clamping groove 39, and the sealing piece 33 is self-locked to the discharge pipe 31, avoiding the waste of the incomplete reaction of the material in the reaction kettle shell 1 caused by the rotation of the handle 36, and further improving the practicability of the device.
[0034] A specific application of the embodiment is: by setting the stirring mechanism 2, first pour one raw material into the reaction kettle shell 1 through the second feeding pipe 212, at this time the driving motor 21 drives the rotating drum 24 to rotate through the first rotating shaft 25, the rotating drum 24 drives the rotating stirring of the first raw material through the rotating stirring of the plurality of spiral blades 28, then pour the second raw material into the connecting cylinder 22 through the first feeding pipe 26, the second raw material enters the receiving pipe 27 through the rotating drum 24, under the action of the centrifugal force of the first rotating shaft 25, the second raw material flows out through the plurality of discharge holes 29, and the second raw material is uniformly and fully mixed into the first raw material through the rotating stirring of the spiral blades 28, and the mannich reaction is carried out, wherein the limiting ring 23 is arranged, the rotating drum 24 is limited in the connecting cylinder 22, and the second raw material is fully and uniformly reacted after a certain time, wherein the fixed frame 210 is arranged to drive the rotating stirring of the first rotating shaft 25 at the bottom end of the rotating stirring of the plurality of auxiliary stirring blades 211, and the plurality of auxiliary stirring blades 211 are arranged to cooperate with the discharge mechanism 3 to open the discharge pipe 31 after the reaction is completed, at this time the motor 21 is continuously driven, the plurality of auxiliary stirring blades 211 are rotated through the first rotating shaft 25, the discharged material is further stirred, and the synthesized mannich base in the reaction kettle shell 1 is also flowed out through the discharge pipe 31, so that the motor 21 drives the plurality of spiral blades 28 to rotate through the first rotating shaft 25, the second raw material flows into the receiving pipe 27 through the first feeding pipe 26, the rotating drum 24, the receiving pipe 27 uniformly mixes the second raw material into the first raw material, and the two raw materials are uniformly and fully reacted, and the plurality of rotating auxiliary stirring blades 211 are arranged to stir the material at the discharge port, which can avoid the poor reaction of the two raw materials due to incomplete stirring to a certain extent.
[0035] When the two raw materials in the reaction kettle shell 1 are fully stirred and reacted by the stirring mechanism 2, the staff member holds the handle 36, presses the button 38 into the handle 36, so that the two springs 37 are compressed, the button 38 slides on the second rotating shaft 35, drives the clamping block 310 to disengage from the clamping groove 39, then rotates the handle 36 to drive the sealing sheet 33 to rotate in the discharge pipe 31 through the second rotating shaft 35, opens the discharge pipe 31 in the sealed state, facilitates the mannich base after the reaction synthesis to be discharged through the discharge pipe 31, and the next process or collection is carried out, when it is needed to seal the discharge pipe 31, the handle 36 is rotated to drive the sealing sheet 33 to seal the discharge pipe 31, then the button 38 is released, the clamping block 310 is clamped in the clamping groove 39 under the elastic force of the two springs 37, the fixation of the second rotating shaft 35 is completed, the sliding connection between the button 38 and the second rotating shaft 35 is designed in a rectangular shape, the edge rotating handle 36 synchronously drives the button 38 to rotate, the bearing frame 32 is arranged, and the bottom end of the first rotating shaft 25 is limited and supported, so that the stable rotation of the first rotating shaft 25 is guaranteed, the elasticity of the spring 37 is utilized, the staff member can conveniently rotate the clamping handle 36 by pressing the button 38, the clamping block 310 is clamped in the clamping groove 39, the self-locking effect of the sealing sheet 33 on the discharge pipe 31 is completed, the waste of the raw materials in the reaction kettle shell 1 not fully reacted is avoided due to the rotation of the handle 36, the discharge pipe 31 is self-locked and fixed, and the practicability of the device is further improved.
[0036] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0037] The preferred embodiments of the above disclosed application are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The embodiments are selected and described in the specification in order to better explain the principles and practical applications of the application, so that the persons skilled in the art can well understand and utilize the application. The application is limited by the claims and the entire scope and equivalents thereof.
Claims
1. A stirring device for mannich base synthesis, comprising a reaction kettle shell (1), a stirring mechanism (2) and a discharge mechanism (3) are arranged on the reaction kettle shell (1), characterized in that: the stirring mechanism (2) comprises a driving assembly, a mixing assembly and a secondary stirring assembly, the driving assembly comprises a motor (21) fixedly connected to the top surface of the reaction kettle shell (1), the inner top wall of the reaction kettle shell (1) is fixedly connected with a connecting cylinder (22), the inner wall of the connecting cylinder (22) is rotatably connected with a limiting ring (23), the bottom surface of the limiting ring (23) is fixedly connected with a rotating cylinder (24), the inner wall of the rotating cylinder (24) is fixedly connected with a first rotating shaft (25), and the top end of the first rotating shaft (25) is fixedly connected with the output end of the motor (21).
2. A stirring apparatus for synthesis of Mannich base according to claim 1, characterized in that, the mixing assembly comprises a first feeding pipe (26) fixedly connected to the top surface of the reaction kettle shell (1), and the distal end of the first feeding pipe (26) extends to the inner wall of the reaction kettle shell (1) and is fixedly connected with the connecting cylinder (22).
3. A stirring apparatus for synthesis of Mannich base according to claim 2, characterized in that, the outer wall of the rotating cylinder (24) is fixedly connected with a plurality of receiving pipes (27), the outer wall of each of the plurality of receiving pipes (27) is fixedly connected with a spiral blade (28), and the outer wall of each of the plurality of receiving pipes (27) is provided with a plurality of discharge holes (29).
4. A stirring apparatus for synthesis of Mannich base according to claim 3, characterized in that, the secondary stirring assembly comprises a fixing frame (210) fixedly connected to the inner bottom wall of the reaction kettle shell (1), the outer wall of the first rotating shaft (25) is rotatably connected with the inner wall of the fixing frame (210), the outer wall of the first rotating shaft (25) is fixedly connected with a plurality of secondary stirring blades (211), and the top surface of the reaction kettle shell (1) is fixedly connected with a second feeding pipe (212).
5. A stirring apparatus for synthesis of Mannich base according to claim 4, characterized in that, the discharge mechanism (3) comprises a discharge assembly, a spring assembly and a locking assembly, the discharge assembly comprises a discharge pipe (31) fixedly connected to the bottom surface of the reaction kettle shell (1), the inner wall of the discharge pipe (31) is fixedly connected with a receiving frame (32), the bottom end of the first rotating shaft (25) is rotatably connected with the top surface of the receiving frame (32), and the inner wall of the discharge pipe (31) is rotatably connected with a sealing piece (33).
6. A stirring apparatus for synthesis of Mannich base according to claim 5, characterized in that, the spring assembly comprises a fixed block (34) fixedly connected to the outer wall of the discharge pipe (31), the inner wall of the fixed block (34) is rotatably connected with a second rotating shaft (35), the left end of the second rotating shaft (35) extends to the inner wall of the discharge pipe (31) and is fixedly connected with the sealing piece (33), and the top end of the second rotating shaft (35) extends to the right side of the fixed block (34) and is fixedly connected with a handle (36).
7. A stirring apparatus for synthesis of Mannich base according to claim 6, characterized in that, the inner wall of the handle (36) is fixedly connected with two springs (37), the outer wall of the second rotating shaft (35) is interactively connected with a button (38), and the right side of the button (38) is fixedly connected with the left ends of the two springs (37).
8. A stirring apparatus for synthesis of Mannich base according to claim 7, characterized in that, the right side of the fixed block (34) is provided with a clamping groove (39), the inner wall of the clamping groove (39) is slidably connected with a clamping block (310), and the inner wall of the clamping block (310) is fixedly connected with the outer wall of the button (38).