Amide condensation reaction kettle

Abstract

The utility model relates to an amide condensation reaction kettle which comprises a tank body provided with an inner cavity; on one hand, the discharge pipeline is fixedly connected to the tank body, and on the other hand, the discharge pipeline is communicated with the inner cavity, so that substances in the inner cavity of the tank body are discharged through the discharge pipeline; the device comprises a driving motor, a speed reducer and a rotating shaft, the driving motor is connected with the speed reducer, and the rotating shaft is connected with the speed reducer, so that the driving motor drives the rotating shaft to rotate; the stirring assembly is connected with the rotating shaft, so that the rotating shaft drives the stirring assembly to rotate; the stirring assembly comprises a first stirring part and a second stirring part, and the first stirring part comprises a first stirring blade; the second stirring part comprises a second stirring blade and a third stirring blade, and the rotating shaft drives the first stirring blade, the second stirring blade and the third stirring blade to rotate when rotating.

Description

Technical Field

[0001] This utility model relates to the field of amide condensation equipment, specifically to an amide condensation reactor. Background Technology

[0002] In experiments involving amide condensation reactions, reaction vessels are typically required, and most existing reaction vessels are equipped with stirring capabilities. The two main raw materials in amide condensation reactions (such as carboxylic acid derivatives and amines) may have different solubilities in the solvent or exhibit phase separation (such as oil-water two-phase reactions). Stirring offers advantages such as improving mass transfer efficiency, ensuring sufficient molecular contact, accelerating the reaction rate, avoiding localized excessive concentrations, and preventing solid deposition. However, many existing reaction vessels do not stir sufficiently during stirring, which to some extent leads to insufficient molecular contact and thus reduces the reaction rate. For example, Chinese utility model application CN202222349913.7 discloses a condensation reaction vessel, which includes a reaction vessel body, a feed inlet at the upper end of the reaction vessel body, a mother liquor outlet at the lower end of the reaction vessel body, a stirring shaft at the axis of the reaction vessel body, a rotating rod fixedly connected to the stirring shaft, a motor slidably connected above the reaction vessel body and moving along the axis of the reaction vessel body, the output shaft of the motor passing through the reaction vessel body and being coaxially fixedly connected to the stirring shaft, a vibration assembly between the motor and the reaction vessel body, the vibration assembly including a vibration ring installed above the reaction vessel body, the vibration ring being inclined and having a groove on it, a connecting rod fixedly connected to the side wall of the rotating rod, the end of the connecting rod away from the rotating rod being slidably connected in the groove of the vibration ring. The rotating rod structure of the reaction vessel provided in this patent is simple, which results in the rotating rod not being able to fully agitate the reactants, with some substances not being agitated or being agitated very slowly, thereby reducing the reaction rate. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing an amide condensation reactor.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: an amide condensation reactor, comprising:

[0005] The tank body has an internal cavity;

[0006] The discharge pipe is fixedly connected to the tank body on one hand, and communicates with the inner cavity on the other hand, so that the substances in the inner cavity of the tank body are discharged through the discharge pipe.

[0007] The system includes a drive motor, a reducer, and a rotating shaft. The drive motor and the reducer are connected, and the rotating shaft is also connected to the reducer, thereby enabling the drive motor to drive the rotating shaft to rotate.

[0008] The stirring assembly is connected to the rotating shaft, thereby causing the rotating shaft to drive the stirring assembly to rotate. The stirring assembly includes a first stirring element and a second stirring element. The first stirring element includes a first stirring blade. The second stirring element includes a second stirring blade and a third stirring blade. When the rotating shaft rotates, it drives the first stirring blade, the second stirring blade, and the third stirring blade to rotate.

[0009] In some embodiments of this application, the stirring assembly includes a predetermined number of first stirring elements. Each first stirring element further includes a first sleeve and a rotating rod. The first sleeve and the first stirring blade are fixedly connected as a unit, and the first stirring blade extends radially for a predetermined length. The rotating rod is connected to the rotating shaft, thereby causing the rotating shaft to drive the rotating rod to rotate. The first sleeve is sleeved on the rotating rod, thereby fixing the first sleeve and the rotating rod together. The rotating rod drives the first sleeve to rotate, and the first sleeve drives the first stirring blade to rotate.

[0010] In some embodiments of this application, the second stirring blade and the third stirring blade are connected to the rotating rod, such that the rotating rod drives the second stirring blade and the third stirring blade to rotate, and the first stirring blade also rotates simultaneously when the rotating rod drives the second stirring blade and the third stirring blade to rotate.

[0011] In some embodiments of this application, the stirring assembly further includes a first connecting rod, a second connecting rod, and a connecting sleeve. One end of the first connecting rod is fixedly connected to the connecting sleeve, and one end of the second connecting rod is fixedly connected to the connecting sleeve. The connecting sleeve is sleeved on the rotating shaft, thereby fixing the connecting sleeve and the rotating shaft together. The other end of the first connecting rod is fixedly connected to the second stirring blade, and the other end of the second connecting rod is fixedly connected to the third stirring blade, thereby causing the first stirring blade and the second stirring blade to rotate when the rotating shaft rotates.

[0012] In some embodiments of this application, the stirring assembly further includes a first stirring rod and a second stirring rod. A first end of the first stirring rod is fixedly connected to the other end of the first connecting rod, and a first end of the second stirring rod is fixedly connected to the other end of the second connecting rod, so that when the rotating shaft rotates, it drives the first stirring rod and the second stirring rod to rotate. The first stirring rod is perpendicular to the first connecting rod, and the second stirring rod is perpendicular to the second connecting rod.

[0013] In some embodiments of this application, the stirring assembly further includes a third stirring rod and a fourth stirring rod. One end of the third stirring rod is fixedly connected to the second end of the first stirring rod, one end of the fourth stirring rod is fixedly connected to the second end of the second stirring rod, and the other end of the third stirring rod is fixedly connected to the other end of the fourth stirring rod, so that when the rotating shaft rotates, it drives the third stirring rod and the fourth stirring rod to rotate together.

[0014] In some embodiments of this application, the rotating rod has an axis, the angle between the extension of the axis and the third stirring rod is greater than 0 degrees and less than 90 degrees, and the angle between the extension of the axis and the fourth stirring rod is greater than 0 degrees and less than 90 degrees.

[0015] In some embodiments of this application, one end of the second stirring blade is fixedly connected to the other end of the first connecting rod, and the other end of the second stirring blade is fixedly connected to the second end of the second stirring rod; one end of the third stirring blade is fixedly connected to the other end of the second connecting rod, and the other end of the third stirring blade is fixedly connected to the second end of the first stirring rod.

[0016] In some embodiments of this application, the second stirring blade is generally in the shape of an arc segment, and the third stirring blade is generally in the shape of an arc segment.

[0017] The beneficial effects of this application are as follows: The structure of the amide condensation reactor provided by this application is relatively simple. Given that it is equipped with a dual stirring element, and the arc-shaped design of the second and third stirring blades of the second stirring element makes the stirring more thorough and the stirring rate higher; and given that it is also equipped with 4 stirring rods, which are mainly distributed near the lower part of the inner cavity of the tank, the 4 stirring rods stir the material in the lower cavity of the tank, thereby making the stirring more thorough and rarely causing the accumulation of material. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the amide condensation reactor provided by this utility model.

[0019] Figure 2This is a schematic diagram of the stirring assembly of the amide condensation reactor provided by this utility model.

[0020] Figure 3 Another schematic diagram of the stirring assembly of the amide condensation reactor provided by this utility model. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0022] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0023] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0024] Please refer to Figure 1-3 This application provides an amide condensation reactor (hereinafter referred to as "the reactor"), which is used for amide condensation reaction. Through the full stirring of the stirring components of the reactor, the rate of amide condensation reaction is greatly increased.

[0025] The reactor includes:

[0026] Tank 1, wherein the tank 1 has an inner cavity 100;

[0027] Discharge pipe 2 is fixedly connected to the tank body 1 on one hand, and communicates with the inner cavity 100 on the other hand, so that the substance in the inner cavity 100 of the tank body 1 is discharged through the discharge pipe 2.

[0028] The drive motor 3, the reducer 4, and the rotating shaft 5 are connected together, so that the drive motor 3 drives the rotating shaft 5 to rotate.

[0029] And a stirring assembly 6, which is connected to the rotating shaft 5, so that the rotating shaft 5 drives the stirring assembly 6 to rotate; the stirring assembly 6 includes a first stirring element and a second stirring element, the first stirring element includes a first stirring blade 63; the second stirring element includes a second stirring blade 65 and a third stirring blade 66, and when the rotating shaft 5 rotates, it drives the first stirring blade 63, the second stirring blade 65, and the third stirring blade 66 to rotate.

[0030] Those skilled in the art will understand that the drive motor 3 has an output shaft, and the drive motor 3 drives the output shaft to rotate at high speed when it is working. The reducer in this application is a mechanical device that is common knowledge or well-known. As long as it can reduce the high speed of the drive motor 3 to a low speed, it is acceptable. For example, the reducer has a large number of gears inside, and the transmission ratio between the gears converts the high speed into the low speed. For example, the reducer used in this application can be a grinding reducer, model 47, manufactured by Tongyuan Machinery and sold on Taobao.

[0031] In some embodiments of this application, please refer to Figure 1-3 The stirring assembly 6 includes a predetermined number of first stirring components. Each first stirring component further includes a first sleeve 64 and a rotating rod 62. The first sleeve 64 and the first stirring blade 63 are fixedly connected as a whole, and the first stirring blade 63 extends radially for a predetermined length. The rotating rod 62 is connected to the rotating shaft 5, thereby causing the rotating shaft 5 to drive the rotating rod 62 to rotate. The first sleeve 64 is sleeved on the rotating rod 62, thereby fixing the first sleeve 64 and the rotating rod 62 together. Thus, the rotating rod 62 drives the first sleeve 64 to rotate, and the first sleeve 64 drives the first stirring blade 63 to rotate.

[0032] Multiple first sleeves 64 can be fitted onto the rotating rod 62, and multiple first stirring blades 63 can be fixedly connected to each first sleeve 64. For example, in this application, three first sleeves 64 are fitted onto the rotating rod 62, and two first stirring blades 63 are fixedly connected to each first sleeve 64. The multiple first stirring blades 63 are distributed at different positions on the rotating rod, thereby accelerating the stirring rate and making the stirring more thorough.

[0033] In some embodiments of this application, please refer to Figure 1-3The second stirring blade 65 and the third stirring blade 66 are connected to the rotating rod 62, so that the rotating rod 62 drives the second stirring blade 65 and the third stirring blade 66 to rotate, and the first stirring blade 63 also rotates at the same time when the rotating rod 62 drives the second stirring blade 65 and the third stirring blade 66 to rotate.

[0034] The term "connection" to the rotating rod 62 for the second stirring blade 65 and the third stirring blade 66 refers to a direct or indirect connection. A direct connection means that the second stirring blade 65 and the third stirring blade 66 are connected to the rotating rod 62 by means of welding, sleeve connection, or other direct connection methods. An indirect connection means that the second stirring blade 65 and the third stirring blade 66 are connected to the rotating rod 62 by a third connecting medium (e.g., a connecting rod). For example, the third connecting medium is connected to the second stirring blade 65 or the third stirring blade 66 on one hand, and to the rotating rod 62 on the other hand.

[0035] In some embodiments of this application, please refer to Figure 1-3 The stirring assembly further includes a first connecting rod 67, a second connecting rod 68, and a connecting sleeve 61. One end of the first connecting rod 67 is fixedly connected to the connecting sleeve 61, and one end of the second connecting rod 68 is fixedly connected to the connecting sleeve 61. The connecting sleeve 61 is sleeved on the rotating shaft 5, thereby fixing the connecting sleeve 61 and the rotating shaft 5 together. The other end 671 of the first connecting rod 67 is fixedly connected to the second stirring blade 65, and the other end 681 of the second connecting rod 68 is fixedly connected to the third stirring blade 66, thereby causing the first stirring blade 65 and the second stirring blade 66 to rotate when the rotating shaft 5 rotates.

[0036] In this application, the connecting sleeve 61 is sleeved on the rotating shaft 5, and the two are fixedly connected together by an interference fit. Of course, there are other ways to fix them together, such as the connecting sleeve 61 being sleeved on the rotating shaft 5 and fixedly connected together by bolts. The first connecting rod 67 and the second stirring blade 65, and the second connecting rod 68 and the third stirring blade 66 are fixedly connected together by welding, bolts, or screws.

[0037] In some embodiments of this application, please refer to Figure 1-3The stirring assembly 6 further includes a first stirring rod 69 and a second stirring rod 611. The first end 691 of the first stirring rod 69 is fixedly connected to the other end 671 of the first connecting rod 67, and the first end 6111 of the second stirring rod 611 is fixedly connected to the other end 681 of the second connecting rod 68. This allows the first stirring rod 69 and the second stirring rod 6111 to rotate when the rotating shaft 5 rotates. The first stirring rod 69 is perpendicular to the first connecting rod 67, and the second stirring rod 611 is perpendicular to the second connecting rod 68.

[0038] In this application, the first stirring rod 69 and the first connecting rod 67 can be fixedly connected together by welding, bolting, or screwing. Similarly, the second stirring rod 611 and the second connecting rod 68 can be fixedly connected together by welding, bolting, or screwing. Of course, other connection methods are also possible. For example, the first connecting rod 67 and the first stirring rod 69 can be integrally formed, as can the second connecting rod 68 and the second stirring rod 611. Later, through bending, the first connecting rod 67 can be perpendicular to the first stirring rod 69, and the second connecting rod 68 can be perpendicular to the second stirring rod 611.

[0039] In some embodiments of this application, please refer to Figure 1-3 The stirring assembly 6 further includes a third stirring rod 612 and a fourth stirring rod 613. One end of the third stirring rod 612 is fixedly connected to the second end 692 of the first stirring rod 69. One end of the fourth stirring rod 613 is fixedly connected to the second end 6112 of the second stirring rod 611. The other end of the third stirring rod 612 is fixedly connected to the other end of the fourth stirring rod 613, so that when the rotating shaft 5 rotates, it drives the third stirring rod 612 and the fourth stirring rod 613 to rotate together.

[0040] Similarly, the third stirring rod 612 and the first stirring rod 69, and the fourth stirring rod 613 and the second stirring rod 611 can be fixedly connected together by welding, bolting, or screwing. The third stirring rod 612 and the fourth stirring rod 613 can also be fixedly connected together by welding, bolting, or screwing.

[0041] In some embodiments of this application, please refer to Figure 1-3 The rotating rod 62 has an axis 600. The angle 601 between the extension of the axis 600 and the third stirring rod 612 is greater than 0 degrees and less than 90 degrees. The angle 602 between the extension of the axis 600 and the fourth stirring rod 613 is greater than 0 degrees and less than 90 degrees.

[0042] The purpose of this design is twofold: firstly, the bottom of the inner cavity 100 of the tank body 1 is roughly conical, and when the third and fourth stirring rods are placed at the bottom of the inner cavity 100 of the tank body 1, they are parallel to the conical surface, ensuring that the third and fourth stirring rods will not interfere with the bottom of the inner cavity 100 of the tank body 1 when rotating; secondly, this structural design also makes the mixing more thorough.

[0043] In some embodiments of this application, please refer to Figure 1-3 One end of the second stirring blade 65 is fixedly connected to the other end of the first connecting rod 67, and the other end of the second stirring blade 65 is fixedly connected to the second end 6112 of the second stirring rod 611; one end of the third stirring blade 66 is fixedly connected to the other end 681 of the second connecting rod 68, and the other end of the third stirring blade 66 is fixedly connected to the second end 692 of the first stirring rod 69.

[0044] In some embodiments of this application, please refer to Figure 1-3 The second stirring blade 65 and the third stirring blade 66 are both generally arc-shaped. In this application, the arc-shaped forms of the second stirring blade 65 and the third stirring blade 66 allow for more thorough mixing and a higher mixing rate.

[0045] The amide condensation reactor provided in this application has a relatively simple structure. Given that it is equipped with dual stirring components, and the arc-shaped design of the second and third stirring blades of the second stirring component makes the stirring more thorough and the stirring rate higher; and given that it is also equipped with 4 stirring rods, which are mainly distributed near the lower part of the inner cavity of the tank, the 4 stirring rods stir the material in the lower cavity of the tank, thereby making the stirring more thorough and minimizing the phenomenon of material accumulation.

[0046] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An amide condensation reactor, characterized in that, include: The tank body has an internal cavity; The discharge pipe is fixedly connected to the tank body on one hand, and communicates with the inner cavity on the other hand, so that the substances in the inner cavity of the tank body are discharged through the discharge pipe. The system includes a drive motor, a reducer, and a rotating shaft. The drive motor and the reducer are connected, and the rotating shaft is also connected to the reducer, thereby enabling the drive motor to drive the rotating shaft to rotate. The stirring assembly is connected to the rotating shaft, thereby causing the rotating shaft to drive the stirring assembly to rotate. The stirring assembly includes a first stirring element and a second stirring element. The first stirring element includes a first stirring blade. The second stirring element includes a second stirring blade and a third stirring blade. When the rotating shaft rotates, it drives the first stirring blade, the second stirring blade, and the third stirring blade to rotate.

2. The amide condensation reactor according to claim 1, characterized in that, The stirring assembly includes a predetermined number of first stirring elements. Each first stirring element further includes a first sleeve and a rotating rod. The first sleeve and the first stirring blade are fixedly connected as a whole, and the first stirring blade extends radially for a predetermined length. The rotating rod is connected to the rotating shaft, thereby causing the rotating shaft to drive the rotating rod to rotate. The first sleeve is sleeved on the rotating rod, thereby fixing the first sleeve and the rotating rod together. The rotating rod drives the first sleeve to rotate, and the first sleeve drives the first stirring blade to rotate.

3. The amide condensation reactor according to claim 2, characterized in that, The second stirring blade and the third stirring blade are connected to the rotating rod, so that the rotating rod drives the second stirring blade and the third stirring blade to rotate, and the first stirring blade also rotates at the same time when the rotating rod drives the second stirring blade and the third stirring blade to rotate.

4. The amide condensation reactor according to claim 3, characterized in that, The stirring assembly further includes a first connecting rod, a second connecting rod, and a connecting sleeve. One end of the first connecting rod is fixedly connected to the connecting sleeve, and one end of the second connecting rod is fixedly connected to the connecting sleeve. The connecting sleeve is sleeved on the rotating shaft, thereby fixing the connecting sleeve and the rotating shaft together. The other end of the first connecting rod is fixedly connected to the second stirring blade, and the other end of the second connecting rod is fixedly connected to the third stirring blade, so that when the rotating shaft rotates, it drives the first stirring blade and the second stirring blade to rotate.

5. The amide condensation reactor according to claim 4, characterized in that, The stirring assembly further includes a first stirring rod and a second stirring rod. The first end of the first stirring rod is fixedly connected to the other end of the first connecting rod, and the first end of the second stirring rod is fixedly connected to the other end of the second connecting rod, so that when the rotating shaft rotates, it drives the first stirring rod and the second stirring rod to rotate. The first stirring rod is perpendicular to the first connecting rod, and the second stirring rod is perpendicular to the second connecting rod.

6. The amide condensation reactor according to claim 5, characterized in that, The stirring assembly further includes a third stirring rod and a fourth stirring rod. One end of the third stirring rod is fixedly connected to the second end of the first stirring rod, one end of the fourth stirring rod is fixedly connected to the second end of the second stirring rod, and the other end of the third stirring rod is fixedly connected to the other end of the fourth stirring rod, so that when the rotating shaft rotates, it drives the third stirring rod and the fourth stirring rod to rotate together.

7. The amide condensation reactor according to claim 6, characterized in that, The rotating rod has an axis, and the angle between the extension of the axis and the third stirring rod is greater than 0 degrees and less than 90 degrees, and the angle between the extension of the axis and the fourth stirring rod is greater than 0 degrees and less than 90 degrees.

8. The amide condensation reactor according to claim 5, characterized in that, One end of the second stirring blade is fixedly connected to the other end of the first connecting rod, and the other end of the second stirring blade is fixedly connected to the second end of the second stirring rod; one end of the third stirring blade is fixedly connected to the other end of the second connecting rod, and the other end of the third stirring blade is fixedly connected to the second end of the first stirring rod.

9. The amide condensation reactor according to claim 1, characterized in that, The second stirring blade is roughly in the shape of an arc segment, and the third stirring blade is roughly in the shape of an arc segment.

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