Amine catalyst synthesis reaction device and method

Abstract

The application belongs to the technical field of catalyst production, and particularly relates to an amine catalyst synthesis reaction device, which comprises a reaction kettle body, a partition plate mechanism arranged in the reaction kettle body and used for dividing the inner cavity of the reaction kettle body into an upper cavity and a lower cavity, a cylinder arranged coaxially with the upper cavity, the cylinder divides the upper cavity into an inner mixing cavity and an outer mixing cavity, the partition plate mechanism is provided with a first gate which can communicate the outer mixing cavity and the lower cavity and a second gate which can communicate the inner mixing cavity and the lower cavity, the top end of the outer mixing cavity is provided with a first feeding port, the top end of the inner mixing cavity is provided with a second feeding port, and the bottom end of the reaction kettle body is provided with a discharge port. The reaction synthesis device has high safety, low vertical height and convenient feeding. The application also relates to an amine catalyst synthesis reaction method.

Description

Technical Field

[0001] This invention relates to the field of catalyst production technology, specifically to an apparatus for synthesizing amine catalysts. This invention also relates to a method for synthesizing amine catalysts. Background Technology

[0002] Polyurethane amine catalysts, generally tertiary amines and quaternary ammonium salts, are widely used in polyurethane foams and come in various types. Currently, the compounding process of amine catalysts mostly involves mixing multiple stirring devices sequentially. This means that multiple groups of materials to be mixed are mixed and reacted separately, and then taken out and put back into the same mixing chamber for further mixing. This process is inefficient and requires a large amount of space. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology.

[0003] Chinese patent CN212236994U discloses a compounding device for amine catalysts. Four columns are connected from top to bottom via an upper platform, a middle platform, and a bottom platform. The bottom ends of adjacent columns are connected by crossbars. There are four upper material cylinders, each connected to an upper platform. Two upper material cylinders on the same side form a group, and the bottom ends of the upper material cylinders in the same group are connected to the two upper interfaces of a Y-shaped tee pipe. There are two middle stirring cylinders, each connected to both sides of the middle platform. The upper end of the middle stirring cylinder is connected to the bottom end of the Y-shaped tee pipe, and the bottom end of the middle stirring cylinder is connected to the upper end of the feed pipe. The bottom stirring cylinder is connected to the bottom platform, and the upper ends of the bottom stirring cylinder are connected to the bottom ends of the feed pipes on both sides.

[0004] This compounding device achieves the compounding of amine catalysts by setting up multiple stirring tanks along the longitudinal direction, resulting in a relatively high longitudinal height and inconvenience for feeding materials. Summary of the Invention

[0005] To address the aforementioned issues, an amine catalyst synthesis reaction apparatus is provided, which solves the problem of inconvenient feeding in existing compounding devices through a partition mechanism and cylindrical components.

[0006] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows: An amine catalyst synthesis reaction apparatus includes a reactor body and a partition mechanism disposed within the reactor body, dividing its internal cavity into an upper cavity and a lower cavity. A coaxial cylindrical component is disposed within the upper cavity, dividing it into an inner mixing cavity and an outer mixing cavity. The partition mechanism has a first gate connecting the outer mixing cavity and the lower cavity, and a second gate connecting the inner mixing cavity and the lower cavity. A first feeding port is disposed at the top of the outer mixing cavity, a second feeding port is disposed at the top of the inner mixing cavity, and a discharge port is disposed at the bottom of the reactor body.

[0007] Preferably, the partition mechanism includes a fixed disk coaxially disposed in the reactor body, the fixed disk having a first discharge port that connects the outer mixing chamber and the lower chamber, and a second discharge port that connects the inner mixing chamber and the lower chamber. The partition mechanism also includes a rotating disk coaxially rotatable and disposed close to the fixed disk, the rotating disk having a first connecting port that connects the first discharge port and the lower chamber, and a second connecting port that connects the second discharge port and the lower chamber. The partition mechanism also includes a first drive unit externally disposed outside the reactor body and drivenly connected to the rotating disk.

[0008] Preferably, the first discharge port and the second discharge port are located on the same radial line of the fixed disk, and the first connecting port along the radial line of the rotating disk is perpendicular to the second connecting port along the radial line of the rotating disk.

[0009] Preferably, the first discharge port along the radial line of the fixed disk is perpendicular to the second discharge port along the radial line of the fixed disk, and the first connecting port and the second connecting port are located on the same radial line of the rotating disk.

[0010] Preferably, the cylindrical component is rotatably disposed in the upper cavity. The reaction device further includes a stirring mechanism, which includes a shaft coaxially passing through the partition mechanism and rotatably disposed in the reaction vessel body, as well as a first stirring unit and a second stirring unit disposed on the shaft. The first stirring unit is located in the inner mixing chamber, and the second stirring unit is located in the lower cavity. The stirring mechanism also includes a third stirring unit disposed on the outside of the cylindrical component. The cylindrical component and the shaft are synchronously connected by transmission. The stirring mechanism also includes a second drive unit externally disposed outside the reaction vessel body and connected by transmission to the shaft.

[0011] Preferably, the stirring mechanism further includes a coaxial reverse transmission assembly, which is disposed at the top of the inner mixing chamber and coaxially reverses the shaft and the cylinder.

[0012] Preferably, both the first stirring unit and the third stirring unit include a first stirring section extending in a horizontal direction and a scraping section disposed outside the first stirring section and extending in a longitudinal direction. When the shaft rotates forward, the scraping section approaches the axis of the shaft along the extending direction of the first stirring section, and when the shaft rotates in reverse, the scraping section moves away from the axis of the shaft along the extending direction of the first stirring section.

[0013] Preferably, the extending direction of the first stirring part of the first stirring unit is opposite to the extending direction of the scraping part of the third stirring unit.

[0014] Preferably, the second stirring unit includes a second stirring section extending radially along the shaft, the second stirring section being spirally and evenly distributed on the shaft.

[0015] This invention also relates to a method for synthesizing amine catalysts, comprising the following steps: Step 1, two groups of materials required for the synthesis of amine catalysts are respectively added to the inner mixing chamber and the outer mixing chamber of the reaction vessel for preliminary reaction; Step 2, after the two groups of materials have reacted respectively, the first gate and the second gate are opened, so that the materials in the inner mixing chamber and the outer mixing chamber fall into the lower chamber for mixing reaction.

[0016] The advantages of this invention compared to the prior art are: 1. This invention sets up a partition mechanism and a cylindrical component in the reactor body to form an outer mixing chamber, an inner mixing chamber, and a lower chamber. This allows two sets of raw materials to be mixed and reacted separately in the outer and inner mixing chambers. After the two sets of raw materials are mixed and reacted, they fall into the lower chamber for further mixing and reaction by opening the first and second gates on the partition mechanism. This invention has high safety, low vertical height, and convenient feeding. 2. The present invention can accelerate the mixing and reaction of materials in the inner mixing chamber, outer mixing chamber and lower chamber through the stirring mechanism, thereby reducing the production time required. Attached Figure Description

[0017] Figure 1 This is a three-dimensional diagram of an apparatus for synthesizing an amine catalyst. Figure 2 This is a three-dimensional cross-sectional view of a reactor for the synthesis of amine catalysts. Figure 3 This is a cross-sectional view of an apparatus for synthesizing an amine catalyst. Figure 4 yes Figure 3 A magnified view of part A; Figure 5 This is a schematic diagram of the internal structure of an amine catalyst synthesis reactor. Figure 6 This is a three-dimensional view of the first and second stirring units in an amine catalyst synthesis reactor. Figure 7 This is a front view of the first and second stirring units in an amine catalyst synthesis reactor. Figure 8 yes Figure 7 A sectional view at section BB; Figure 9 This is an exploded perspective view of a first embodiment of a partition mechanism in an amine catalyst synthesis reactor. Figure 10 This is an exploded perspective view of a second embodiment of a partition mechanism in an amine catalyst synthesis reactor. Figure 11 This is a flowchart of a synthesis reaction method using amine catalysts.

[0018] The numbers on the map are: 1-Reaction vessel body; 11-First feeding port; 12 - Second feeding port; 13 - Discharge port; 14-Support ring; 15 - Sealing cylinder; 16 - Sealing ring; 2-Partition mechanism; 21-First gate; 22-Second gate; 23-Fixed plate; 231-The first blanking port; 232 - Second material discharge port; 233-Upper plate body; 234 - Lower body; 24-Spinning disc; 241 - First connecting port; 242 - Second connecting port; 243-tooth; 251 - First motor; 252 - First Gear; 3-Cylinder; 4-Stirring mechanism; 41-Shaft; 42 - First stirring unit; 421 - First stirring section; 4211-Fixed Ear; 4212 - Rod; 4214 - Sliding cavity; 4213 - First limiting ring; 422 - Scraping section; 4221 - Sliding rod; 4224 - Second limit ring; 4222 - Spring; 4223 - Scraper bar; 43 - Second stirring unit; 431 - Second stirring section; 44 - Third stirring unit; 45 - Second drive unit; 46 - Coaxial reverse transmission assembly; 461 - Internal gear ring; 462 - Second gear; 463 - Third Gear; 47 - Retaining ring; 48 - Fixed cylinder; 481 - IUD insertion; 49 - Limiting ring; 410-Bearing; 411 - Sealing ring. Detailed Implementation

[0019] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1-10 As shown, the present invention provides: An amine catalyst synthesis reaction apparatus includes a reaction vessel body 1 and a partition mechanism 2 disposed in the reaction vessel body 1, dividing its inner cavity into an upper cavity and a lower cavity. A cylindrical component 3 coaxially disposed in the upper cavity, the cylindrical component 3 dividing the upper cavity into an inner mixing cavity and an outer mixing cavity. The partition mechanism 2 has a first gate 21 that connects the outer mixing cavity and the lower cavity, and a second gate 22 that connects the inner mixing cavity and the lower cavity. A first feeding port 11 is disposed at the top of the outer mixing cavity, a second feeding port 12 is disposed at the top of the inner mixing cavity, and a discharge port 13 is disposed at the bottom of the reaction vessel body 1.

[0021] The first feeding port 11 and the second feeding port 12 each include at least two. At least two first feeding ports 11 can respectively feed at least different kinds of compound raw materials into the external mixing chamber, so as to avoid the two compound raw materials reacting directly at the first feeding port 11 and corroding the first feeding port 11.

[0022] At least two other types of compound raw materials can be fed into the internal mixing chamber through at least two second feeding ports 12, so as to avoid the two compound raw materials reacting directly at the second feeding ports 12 and corroding the first feeding port 11.

[0023] At least two compound raw materials are grouped together and fed into the outer mixing chamber for mixing and reaction. At least two other compound raw materials are grouped together and fed into the inner mixing chamber for mixing and reaction. After the compound raw materials in the outer mixing chamber have completed their mixing and reaction, the partition mechanism 2 can be directly activated, causing the first gate 21 to connect the outer mixing chamber and the lower chamber, allowing the material in the outer chamber to fall into the lower chamber through the first gate 21. When the compound raw materials in the inner mixing chamber have completed their mixing and reaction, the second gate 22 is driven to connect the inner mixing chamber and the lower chamber. The material in the inner cavity falls into the lower cavity through the second gate 22. Before feeding, the outlet 13 is blocked, or a switch valve can be set at the outlet 13 to make the lower cavity relatively closed to the outside. After the two sets of compound raw materials are mixed and fall into the lower cavity, the first gate 21 and the second gate 22 are closed, so that the two sets of compound raw materials can be mixed and reacted in the closed lower cavity. At the same time, compound raw materials can be replenished to the outer mixing cavity and the inner mixing cavity for continuous mixing and reaction, and raw materials can be replenished to the lower cavity.

[0024] By setting the partition mechanism 2 and the cylinder 3 in the reactor body 1 to form an outer mixing chamber, an inner mixing chamber and a lower chamber, the two sets of raw materials can be mixed and reacted separately in the outer mixing chamber and the inner mixing chamber. After the two sets of raw materials are mixed and reacted, they fall into the lower chamber and are mixed and reacted again by opening the first gate 21 and the second gate 22 on the partition mechanism 2. This method has high safety, low vertical height and convenient feeding.

[0025] like Figure 3 , Figure 9 and Figure 10 As shown, the partition mechanism 2 includes a fixed disk 23 coaxially disposed in the reactor body 1. The fixed disk 23 is provided with a first discharge port 231 that can connect the outer mixing chamber and the lower chamber. The fixed disk 23 is provided with a second discharge port 232 that can connect the inner mixing chamber and the lower chamber. The partition mechanism 2 also includes a rotating disk 24 coaxially rotating and disposed close to the fixed disk 23. The rotating disk 24 is provided with a first connecting port 241 that can connect the first discharge port 231 and the lower chamber, and a second connecting port 242 that can connect the second discharge port 232 and the lower chamber. The partition mechanism 2 also includes a first drive unit externally disposed outside the reactor body 1 and drivenly connected to the rotating disk 24.

[0026] When it is necessary to drop the material in the outer mixing chamber into the lower chamber, the first drive unit is activated, which drives the rotating disk 24 to rotate relative to the fixed disk 23. In the initial state, the first connecting port 241 is not connected to the first discharge port 231, and the second connecting port 242 is not connected to the second discharge port 232. When the rotating disk 24 rotates relative to the fixed disk 23 to connect the first connecting port 241 and the first discharge port 231, the material in the outer mixing chamber falls into the lower chamber through the first discharge port 231 and the first connecting port 241 in sequence. When the rotating disk 24 is aligned with the fixed disk 23 to connect the second connecting port 242 and the second discharge port 232, the material in the inner mixing chamber falls into the lower chamber through the second discharge port 232 and the first connecting port 241 in sequence, thereby realizing the opening and closing of the first gate 21 and the second gate 22.

[0027] The reactor body 1 has a coaxial support ring 14 in its inner cavity. The fixed disk 23 includes an upper disk 233 and a lower disk 234, which are coaxially disposed at the top of the support ring 14. The upper disk 233 is coaxially fixedly disposed at the top of the lower disk 234. There is a space between the upper disk 233 and the lower disk 234 for coaxially rotating the rotating disk 24. The outer side of the rotating disk 24 is evenly provided with teeth 243. The first drive unit includes a first motor 251 and a first gear 252. The first motor 251 is disposed outside the reactor body 1. The first gear 252 is coaxially fixedly disposed on the output shaft of the first motor 251. The first gear 252 penetrates the reactor body 1 and meshes with the teeth 243. When the first motor 251 is started, the first gear 252 can drive the rotating disk 24 to rotate a certain angle between the upper disk 233 and the lower disk 234.

[0028] The reaction device also includes a photoelectric encoder, which is connected to the output shaft of the first motor 251. The photoelectric encoder can monitor the output torque of the first motor 251 so as to accurately adjust the rotation angle of the rotating disk 24 between the upper disk 233 and the lower disk 234.

[0029] The first discharge port 231 and the second discharge port 232 are located on the same radial line of the fixed disk 23, and the first connecting port 241 along the radial line of the rotating disk 24 is perpendicular to the second connecting port 242 along the radial line of the rotating disk 24.

[0030] As a first embodiment of this application, such as Figure 9As shown, when the line connecting the first discharge port 231 and the second discharge port 232 at their central positions extends radially along the fixed disk 23, and the line connecting the central position of the first connecting port 241 with the axis of the rotating disk 24 and the line connecting the central position of the second connecting port 242 with the axis of the rotating disk 24 are perpendicular to each other, the rotating disk 24 rotates 180 degrees relative to the fixed disk 23, and the first connecting port 241 is located at the bottom end of the first discharge port 231, thus connecting the outer mixing chamber and the lower chamber; when the rotating disk 24 rotates 90 degrees relative to the fixed disk 23 again, the first discharge port 231 is blocked by the rotating disk 24, and the second connecting port 242 rotates to the bottom end of the second discharge port 232, thus connecting the inner mixing chamber and the lower chamber, thereby realizing the independent opening of the first gate 21 and the second gate 22, so as to prevent the mixing reaction in the outer mixing chamber or the inner mixing chamber from having different times, allowing the material in the outer mixing chamber or the inner mixing chamber to fall into the lower chamber first.

[0031] The first discharge port 231 is perpendicular to the radial line of the fixed disk 23 and the second discharge port 232 is perpendicular to the radial line of the fixed disk 23. The first connecting port 241 and the second connecting port 242 are located on the same radial line of the rotating disk 24.

[0032] As a first embodiment of this application, such as Figure 10 As shown, when the line connecting the center position of the first discharge port 231 with the axis of the fixed disk 23 and the line connecting the center position of the second discharge port 232 with the axis of the fixed disk 23 are perpendicular to each other, and the line connecting the center positions of the first connecting port 241 and the second connecting port 242 extends radially along the rotating disk 24, the rotating disk 24 rotates 180 degrees relative to the fixed disk 23, and the first connecting port 241 is located at the bottom end of the first discharge port 231, thus connecting the outer mixing chamber and the lower chamber; when the rotating disk 24 rotates 90 degrees relative to the fixed disk 23 again, the first discharge port 231 is blocked by the rotating disk 24, and the second connecting port 242 rotates to the bottom end of the second discharge port 232, thus connecting the inner mixing chamber and the lower chamber, thereby realizing the independent opening of the first gate 21 and the second gate 22, so as to prevent the mixing reaction in the outer mixing chamber or the inner mixing chamber from having different times, allowing the material in the outer mixing chamber or the inner mixing chamber to fall into the lower chamber first.

[0033] like Figure 2 and 3As shown, the cylindrical component 3 is rotatably disposed in the upper cavity. The reaction device also includes a stirring mechanism 4. The stirring mechanism 4 includes a shaft 41 that coaxially passes through the partition mechanism 2 and is rotatably disposed in the reaction vessel body 1, as well as a first stirring unit 42 and a second stirring unit 43 disposed on the shaft 41. The first stirring unit 42 is located in the inner mixing chamber, and the second stirring unit 43 is located in the lower cavity. The stirring mechanism 4 also includes a third stirring unit 44 disposed outside the cylindrical component 3. The cylindrical component 3 is synchronously driven connected to the shaft 41. The stirring mechanism 4 also includes a second drive unit 45 externally disposed outside the reaction vessel body 1 and drivenly connected to the shaft 41.

[0034] The stirring mechanism 4 can accelerate the mixing reaction of materials in the inner mixing chamber, outer mixing chamber and lower chamber, thereby reducing the production time. When the second drive unit 45 is started, the shaft 41 rotates in the reactor body 1. Because the shaft 41 and the cylinder 3 are synchronously driven, the cylinder 3 will rotate synchronously in the upper chamber, which can drive the third stirring unit 44 installed on the outside of the cylinder 3 to stir the materials in the outer mixing chamber. At the same time, the shaft 41 drives the first stirring unit 42 to rotate in the inner mixing chamber and the second stirring unit 43 to rotate in the lower mixing chamber, thereby improving the efficiency of the mixing reaction.

[0035] The first stirring part 421 includes a fixing ear 4211. A rod 4212 that is radially inclined to the shaft 41 is provided on the outer side of the fixing ear 4211. A sliding cavity 4214 is opened inward at the outer end of the rod 4212. A limit ring is provided at the outer port of the sliding cavity 4214. The scraping part 422 includes a sliding rod 4221, a spring 4222 and a scraping rod 4223. The sliding rod 4221 passes through the first limit ring 4213 and slides with it. A second limit ring 4224 that slides with the sliding cavity 4214 is provided at the inner end of the sliding rod 4221. The spring 4222 is sleeved on the sliding rod 4221. The scraping rod 4223 is arranged in a vertical direction. The outer end of the sliding rod 4221 is fixedly connected to the inner side of the scraping rod 4223.

[0036] When the shaft 41 drives the first stirring unit 42 to rotate in the forward direction, due to the inclined extension of the rod 4212, the scraper rod 4223 will abut against the outside of the rod 4212 under the action of the differential speed of the sliding rod 4221 and the spring 4222, so that the scraper rod 4223 cannot contact the inner wall of the cylinder 3. When the shaft 41 drives the first stirring unit 42 to rotate in the reverse direction, the sliding rod 4221 overcomes the elastic force of the spring 4222 under the action of centrifugal force and extends out of the sliding cavity 4214, so that the scraper rod 4223 can abut against the inner wall of the cylinder, thereby achieving scraping of the inner wall of the cylinder 3 to prevent the material from sticking to the inner wall of the cylinder 3. Since the first stirring unit 42 and the second stirring unit 43 have the same structure, they can also scrape the inner wall of the reactor body 1.

[0037] The second drive unit 45 includes a second motor, which is located at the top of the reactor body 1. The top of the shaft 41 passes through the top of the reactor body 1 and is coaxially and fixedly connected to the output shaft of the second motor.

[0038] like Figure 3 and Figure 5 As shown, the stirring mechanism 4 also includes a coaxial reverse transmission assembly 46, which is disposed at the top of the inner mixing chamber and coaxially reverses the shaft 41 and the cylinder 3.

[0039] The coaxial reverse transmission assembly 46 includes an internal gear ring 461, a second gear 462, and a third gear 463. The internal gear ring 461 is coaxially and fixedly disposed at the top end of the inner circumferential surface of the cylinder 3. The second gear 462 is coaxially and fixedly disposed on the shaft 41. The third gear 463 is rotatably disposed at the top end of the inner mixing chamber. The internal gear ring 461 meshes with the third gear 463, and the third gear 463 meshes with the second gear 462.

[0040] The shaft 41 rotates in the reactor body 1. Because the second gear 462 meshes with the third gear 463, and the third gear 463 meshes with the internal gear ring 461, the shaft 41 can drive the cylinder to rotate in the reactor body 1 while rotating.

[0041] A sealing cylinder 15 extends downward from the bottom end of the second feeding port 12. A sealing ring 16 coaxial with the cylinder 3 is provided at the bottom end of the sealing cylinder 15. The sealing ring 16 is located at the bottom end of the coaxial reverse transmission assembly 46. An outer sealing ring 411 is fitted on the outer circumferential surface of the sealing ring 16, and an inner sealing ring 411 is provided on the inner circumferential surface of the sealing ring 16. The outer sealing ring 411 is press-fitted with the inner wall of the cylinder 3, and the inner sealing ring 411 is press-fitted with the circumferential surface of the shaft 41 to prevent the fed material from corroding the coaxial reverse transmission assembly 46.

[0042] like Figure 6 As shown, both the first stirring unit 42 and the third stirring unit 44 include a first stirring section 421 extending in the horizontal direction and a scraping section 422 disposed outside the first stirring section 421 and extending in the longitudinal direction. When the shaft 41 rotates clockwise, the scraping section 422 approaches the axis of the shaft 41 along the extending direction of the first stirring section 421. When the shaft 41 rotates counterclockwise, the scraping section 422 moves away from the axis of the shaft 41 along the extending direction of the first stirring section 421.

[0043] The stirring mechanism 4 also includes a fixing ring 47, a fixing cylinder 48, a limiting ring 49, a bearing 410, and a sealing ring 411. The fixing ring 47 is coaxially and fixedly disposed in the inner cavity of the reactor body 1. The top and bottom ends of the inner circumferential surface of the fixing ring 47 are respectively provided with a first stepped groove and a second stepped groove. The upper plate 233 has a first inner mounting hole, which is coaxially and fixedly disposed on the first stepped groove. The lower plate 234 has a second inner mounting hole, which is coaxially and fixedly disposed at the bottom end of the second stepped groove. The connecting bolt passes through the upper plate 233, the fixing ring 47, and the lower plate 234 and is fixedly connected to them to maintain and stabilize the distance between the upper plate 233 and the lower plate 234. The fixing cylinder 48... A fixed ring 48 is provided at the top of the fixed cylinder 48, which abuts against the top of the fixed ring 47. A limiting ring 49 is coaxially sleeved on the fixed cylinder 48 and abuts against the bottom of the fixed ring 47. A shaft 41 coaxially passes through the fixed cylinder 48. A bearing 410 is provided between the fixed cylinder 48 and the shaft 41 for coaxial rotatable connection to prevent the shaft 41 from transmitting torque to the fixed cylinder 48. Two sealing rings 411 are coaxially sleeved on the shaft 41 and located at the top and bottom of the bearing 410. The sealing rings 411 are interference-fitted with the inner circumferential surface of the fixed cylinder 48 to prevent the material in the inner mixing chamber from corroding the bearing 410 or flowing down into the lower cavity through the gap.

[0044] like Figure 5 and Figure 6 As shown, the extending direction of the first stirring part 421 of the first stirring unit 42 is opposite to the extending direction of the scraping part 422 of the third stirring unit 44.

[0045] Since the shaft 41 and the cylinder 3 are connected in opposite directions and rotate on the same axis, the extension direction of the first stirring part 421 of the first stirring unit 42 needs to be opposite to the extension direction of the first stirring part 421 of the third stirring unit 44. When the shaft 41 rotates in the forward direction, the scraping part 422 of the third stirring unit 44 can move away from the inner wall of the reactor body 1. When the shaft 41 rotates in the reverse direction, the scraping part 422 of the third stirring unit 44 can abut against the inner wall of the reactor body 1 and scrape the material.

[0046] like Figure 6 and Figure 7 As shown, the second stirring unit 43 includes a second stirring part 431 extending radially along the shaft 41, and the second stirring part 431 is spirally and evenly distributed on the shaft 41.

[0047] The rotating second stirring part 431 enables the materials in the lower chamber to mix and react quickly, and the second stirring part 431 is evenly distributed spirally on the shaft 41. When the discharge port is opened, the evenly distributed spiral of the second stirring part 431 can accelerate the discharge of materials.

[0048] A method for synthesizing amine catalysts includes the following steps: Step 1: The two sets of materials required for the synthesis of amine catalysts are respectively added to the inner mixing chamber and the outer mixing chamber of the reactor body 1 for preliminary reaction; Step 2: After the two groups of materials have reacted separately, open the first gate 21 and the second gate 22 to allow the materials in the inner mixing chamber and the outer mixing chamber to fall into the lower chamber for mixing and reaction.

[0049] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An apparatus for synthesizing amine catalysts, characterized in that, The reactor includes a reactor body (1) and a partition mechanism (2) that divides the reactor body (1) into an upper cavity and a lower cavity. The upper cavity is provided with a cylindrical component (3) that is coaxial with it. The cylindrical component (3) divides the upper cavity into an inner mixing cavity and an outer mixing cavity. The partition mechanism (2) has a first gate (21) that can connect the outer mixing cavity and the lower cavity, and a second gate (22) that can connect the inner mixing cavity and the lower cavity. The top of the outer mixing cavity is provided with a first feeding port (11), the top of the inner mixing cavity is provided with a second feeding port (12), and the bottom of the reactor body (1) is provided with a discharge port (13). The cylinder (3) is rotatably disposed in the upper cavity. The reaction device also includes a stirring mechanism (4). The stirring mechanism (4) includes a shaft (41) that coaxially passes through the partition mechanism (2) and is rotatably disposed in the reactor body (1). A first stirring unit (42) and a second stirring unit (43) are disposed on the shaft (41). The first stirring unit (42) is located in the inner mixing chamber, and the second stirring unit (43) is located in the lower cavity. The stirring mechanism (4) also includes a third stirring unit (44) disposed outside the cylinder (3). The cylinder (3) and the shaft (41) are synchronously connected. The stirring mechanism (4) also includes a second drive unit (45) externally disposed outside the reactor body (1) and connected to the shaft (41) in a driving manner.

2. The amine catalyst synthesis reaction apparatus according to claim 1, characterized in that, The partition mechanism (2) includes a fixed disk (23) coaxially disposed in the reactor body (1). The fixed disk (23) is provided with a first discharge port (231) that can connect the outer mixing chamber and the lower chamber. The fixed disk (23) is provided with a second discharge port (232) that can connect the inner mixing chamber and the lower chamber. The partition mechanism (2) also includes a rotating disk (24) coaxially rotating and disposed close to the fixed disk (23). The rotating disk (24) is provided with a first connecting port (241) that can connect the first discharge port (231) and the lower chamber, and a second connecting port (242) that can connect the second discharge port (232) and the lower chamber. The partition mechanism (2) also includes a first drive unit externally disposed outside the reactor body (1) and connected to the rotating disk (24) for transmission.

3. The apparatus for synthesizing an amine catalyst according to claim 2, characterized in that, The first discharge port (231) and the second discharge port (232) are located on the same radial line of the fixed disk (23), and the first connecting port (241) along the radial line of the rotating disk (24) is perpendicular to the second connecting port (242) along the radial line of the rotating disk (24).

4. The amine catalyst synthesis reaction apparatus according to claim 2, characterized in that, The first discharge port (231) is perpendicular to the radial line of the fixed disk (23) and the second discharge port (232) is perpendicular to the radial line of the fixed disk (23). The first connecting port (241) and the second connecting port (242) are located on the same radial line of the rotating disk (24).

5. The apparatus for synthesizing an amine catalyst according to claim 1, characterized in that, The stirring mechanism (4) further includes a coaxial reverse transmission assembly (46), which is located at the top of the inner mixing chamber. The coaxial reverse transmission assembly (46) coaxially reverses the shaft (41) and the cylinder (3).

6. The apparatus for synthesizing an amine catalyst according to claim 5, characterized in that, Both the first stirring unit (42) and the third stirring unit (44) include a first stirring section (421) extending in the horizontal direction and a scraping section (422) disposed outside the first stirring section (421) and extending in the longitudinal direction. When the shaft (41) rotates forward, the scraping section (422) approaches the axis of the shaft (41) along the extension direction of the first stirring section (421). When the shaft (41) rotates in reverse, the scraping section (422) moves away from the axis of the shaft (41) along the extension direction of the first stirring section (421).

7. The apparatus for synthesizing an amine catalyst according to claim 6, characterized in that, The extension direction of the first stirring part (421) of the first stirring unit (42) is opposite to the extension direction of the scraping part (422) of the third stirring unit (44).

8. An amine catalyst synthesis reaction apparatus according to any one of claims 5-7, characterized in that, The second stirring unit (43) includes a second stirring part (431) extending radially along the shaft (41), and the second stirring part (431) is spirally and evenly distributed on the shaft (41).

9. A method for synthesizing an amine catalyst, comprising preparation using an amine catalyst synthesis apparatus as described in claim 1, characterized in that, Includes the following steps: Step 1: The two sets of materials required for the synthesis of amine catalysts are respectively added to the inner mixing chamber and the outer mixing chamber of the reactor body (1) for preliminary reaction; Step 2: After the two groups of materials have reacted separately, open the first gate (21) and the second gate (22) so that the materials in the inner mixing chamber and the outer mixing chamber fall into the lower chamber for mixing and reaction.

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