4,6-pyrimidine continuous production device with self-cleaning function

Abstract

The utility model relates to 4, 6 - pyrimidine continuous production technical field, concretely for a kind of 4, 6 - pyrimidine continuous production device with self-cleaning function, including operation platform and mounting bracket, the inside upper side of operation platform is equipped with mounting bracket, the mounting bracket includes fixed block and fixed ring, both sides of the fixed block are equipped with fixed bearing, two groups of fixed bearing are respectively installed in operation platform inner wall, the top end of fixed block is equipped with fixed ring, the reaction kettle is placed in the fixed ring, the top right side of operation platform is equipped with driving assembly, the driving assembly includes drive box and driving shaft, the first gear rotation can be driven by driving shaft by drive box in driving assembly to drive the second gear rotation, it is convenient to reaction kettle overturn to further clean to improve efficiency, by the cleaning pipe of installation can be embedded in transmission part top side to be convenient for water jet pipe rotation to reaction kettle is cleaned, reduce the impurity in reaction kettle to improve reaction quality and reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of continuous production technology of 4,6-pyrimidine, specifically to a continuous production device for 4,6-pyrimidine with self-cleaning function. Background Technology

[0002] 4,6-Dichloropyrimidine, with its low melting and boiling points, is mainly used as a starting material for the synthesis of disubstituted pyrimidines via tandem amination and cross-coupling reactions, as well as in the production of sulfonamides. Simultaneously, 4,6-Dichloropyrimidine serves as an intermediate in the synthesis of salicylic acid pyrimidine herbicides. However, the production of these herbicides requires chlorination in a reaction vessel. Currently, some existing reaction vessels rely on manual stirring for material mixing, and even then, some mixing reactions are not ideal, affecting subsequent processing and reducing the effectiveness of the herbicides.

[0003] For example, CN217450186U discloses a reactor for producing 4,6-dichloropyrimidine, including a mounting bracket. The mounting bracket houses the reactor body. Mounting blocks are fixedly connected to both sides of the outer wall of the reactor body. A feed pipe is fixedly connected to the top of the reactor body. The outer wall of the feed pipe has external threads. A mounting cover is threaded to the outer wall of the feed pipe. A mounting valve is fixedly connected to the upper surface of the mounting cover. This invention utilizes a pushing assembly to facilitate the connection of a bracket, a rotating shaft, a shaped disc, a worm gear, a connecting block, a connecting motor, a connecting worm, a pushing rod, and a pushing latch, thereby promoting the movement of the reactor body. This causes the reactor body to vibrate up and down, ensuring thorough reaction of materials and reactants with the stirring rod and disc, eliminating the need for manual stirring, reducing uneven mixing, and improving performance. However, during production of 4,6-pyrimidine, impurities are sometimes introduced into the reactor, affecting subsequent production. Furthermore, due to the large production volume of 4,6-pyrimidine, which requires a catalyst for rapid reaction, conventional production methods require waiting for reaction time, resulting in low efficiency. Therefore, there is an urgent need to design a continuous production device for 4,6-pyrimidine with self-cleaning capabilities to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a continuous production device for 4,6-pyrimidine with self-cleaning function, in order to solve the problems mentioned in the background art, such as the generation of impurities in the reactor during the production of 4,6-pyrimidine, which affects subsequent production, and the large production volume of 4,6-pyrimidine, which requires the addition of a catalyst to react quickly, while conventional production requires waiting for the reaction time and is therefore inefficient.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a continuous production device for pyrimidine with self-cleaning function, comprising an operating table and a mounting frame. The mounting frame is installed on the upper inner side of the operating table. The mounting frame includes a fixing block and a fixing ring. Fixing bearings are installed on both sides of the fixing block. Two sets of fixing bearings are respectively installed on the inner wall of the operating table. A fixing ring is installed at the top of the fixing block. A reaction vessel is placed inside the fixing ring. A drive assembly is installed on the right side of the top of the operating table. The drive assembly includes a drive box and a drive shaft. The drive box is installed on the right side of the top of the operating table. The drive box drives the drive shaft installed inside the operating table to rotate. A first gear is installed at the left end of the drive shaft. The bottom end of the first gear meshes with a second gear. The second gear is installed at the center of the right-side fixing bearing. An annular groove is formed at the top of the reaction vessel. An outer cover is placed at the top of the reaction vessel. A cleaning mechanism is installed inside the reaction vessel. The cleaning mechanism includes a transmission component, a stirring plate, and a cleaning pipe. The transmission component is installed at the bottom inner end of the reaction vessel. A stirring plate is installed on the upper side of the transmission component. A cleaning pipe is installed at the top of the transmission component.

[0006] Preferably, a square groove is formed at the top of the operating table, and an extension groove is formed on the right side of the top of the operating table.

[0007] Preferably, arc-shaped blocks are installed on both walls of the fixing ring, and side blocks are fixed on the outer walls of the two sets of arc-shaped blocks. The two sets of side blocks are installed on both sides of the top of the fixing block.

[0008] Preferably, an annular block is fixed at the bottom of the outer cover, and the bottom of the annular block is fitted into an annular groove at the top of the reactor. A feed pipe is installed at the center of the outer cover.

[0009] Preferably, the transmission component includes a servo motor and a limiting bearing. The limiting bearing is installed at the bottom of the inside of the reactor. A rotating rod is installed at the center of the limiting bearing. A conical block is fixed at the top of the rotating rod. The servo motor is installed at the bottom of the rotating rod.

[0010] Preferably, the mixing plate includes a rotating plate and mixing rods. The rotating plate is installed on the bottom side of the rotating rod, and twelve sets of mixing rods are installed on the top of the rotating plate. The twelve sets of mixing rods are installed on the upper side of the rotating plate in four groups, increasing in height.

[0011] Preferably, the cleaning pipe includes a connecting block and a water spray pipe. The bottom end of the connecting block has a conical groove, and the bottom end of the conical groove is fitted onto the top end of the conical block. The top end of the connecting block is equipped with a water spray pipe, the water spray pipe has a spray nozzle, and the top end of the water spray pipe is equipped with a water injection pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This is a continuous 4,6-pyrimidine production device with self-cleaning function. It rotates by fixed bearings installed on both sides of the fixed block in the mounting frame. The drive assembly can drive the fixed block to flip slightly in the operating table. The arc-shaped block and side block installed on the side of the fixed ring can limit the reaction vessel and improve stability. The drive box in the drive assembly can drive the first gear to rotate through the drive shaft, which in turn drives the second gear to rotate, which facilitates the flipping of the reaction vessel and further cleaning to improve efficiency.

[0014] This is a continuous 4,6-pyrimidine production device with self-cleaning function. An annular groove at the top of the reactor can be fitted with an annular block at the bottom of the outer cover, facilitating installation. A feed pipe at the top of the reactor allows for easy catalyst addition, improving efficiency. A transmission component at the bottom of the reactor drives a stirring plate inside, rotating and mixing the raw materials and catalyst, further enhancing efficiency. A cleaning pipe fitted to the top of the transmission component allows for easy water spraying to clean the reactor, reducing impurities, improving reaction quality, and lowering production costs. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the present utility model;

[0016] Figure 2 This is a top view of the operating panel of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the reaction vessel of this utility model;

[0018] Figure 4 This is a front sectional view of the cleaning mechanism of this utility model.

[0019] In the diagram: 1. Operating table; 11. Square groove; 12. Extension groove; 2. Mounting frame; 21. Fixing block; 211. Fixing bearing; 22. Fixing ring; 221. Arc-shaped block; 222. Side block; 3. Drive assembly; 31. Drive box; 32. Drive shaft; 33. First gear; 34. Second gear; 4. Reactor; 41. Annular groove; 42. Outer cover; 421. Annular block; 422. Feed pipe; 5. Cleaning mechanism; 51. Transmission component; 511. Servo motor; 512. Rotating rod; 513. Limit bearing; 514. Conical block; 52. Stirring plate; 521. Rotating plate; 522. Stirring rod; 53. Cleaning pipe; 531. Connecting block; 532. Conical groove; 533. Water spray pipe; 534. Water injection pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 One embodiment provided by this utility model:

[0022] A continuous production apparatus for 4,6-pyrimidine with self-cleaning function. The servo motor 511, drive box 31, and reaction vessel 4 used in this application are commercially available products. Their principles and connection methods are existing technologies well known to those skilled in the art. The apparatus includes an operating table 1 and a mounting frame 2. The mounting frame 2 is installed on the upper side of the inside of the operating table 1. The mounting frame 2 includes a fixing block 21 and a fixing ring 22. Fixing bearings 211 are installed on both sides of the fixing block 21. The two sets of fixing bearings 211 are respectively installed on the inner wall of the operating table 1. The fixing ring 22 is installed on the top of the fixing block 21, and the reaction vessel 4 is placed inside the fixing ring 22. The drive assembly 3 is installed on the right side of the top of the operating table 1. The system includes a drive box 31 and a drive shaft 32. The drive box 31 is installed on the top right side of the operating table 1. The drive box 31 drives the drive shaft 32 installed in the operating table 1 to rotate. A first gear 33 is installed on the left end of the drive shaft 32. The bottom end of the first gear 33 meshes with a second gear 34. The second gear 34 is installed at the center of the right-side fixed bearing 211. An annular groove 41 is opened at the top of the reactor 4. An outer cover 42 is placed at the top of the reactor 4. A cleaning mechanism 5 is installed inside the reactor 4. The cleaning mechanism 5 includes a transmission component 51, a stirring plate 52, and a cleaning pipe 53. The transmission component 51 is installed at the bottom inside the reactor 4. The stirring plate 52 is installed on the upper side of the transmission component 51. The cleaning pipe 53 is installed at the top of the transmission component 51.

[0023] As a further feature of this invention, a square groove 11 is provided at the top of the operating table 1, and an extension groove 12 is provided on the right side of the top of the operating table 1 to facilitate the rotation of the reaction vessel.

[0024] Furthermore, arc-shaped blocks 221 are installed on both walls of the fixed ring 22, and side blocks 222 are fixed on the outer walls of the two sets of arc-shaped blocks 221. The two sets of side blocks 222 are installed on both sides of the top of the fixed block 21 to improve the rotational stability of the reactor.

[0025] As a further improvement of this utility model, an annular block 421 is fixed at the bottom of the outer cover 42. The bottom of the annular block 421 is fitted into the annular groove 41 at the top of the reactor 4. The feed pipe 422 is installed in the center of the outer cover 42 to facilitate internal reaction and subsequent cleaning.

[0026] Furthermore, the transmission component 51 includes a servo motor 511 and a limit bearing 513. The limit bearing 513 is installed at the bottom of the inside of the reaction vessel 4. A rotating rod 512 is installed at the center of the limit bearing 513. A conical block 514 is fixed at the top of the rotating rod 512. The servo motor 511 is installed at the bottom of the rotating rod 512. The stirring plate 52 includes a rotating plate 521 and stirring rods 522. The rotating plate 521 is installed on the bottom side of the rotating rod 512. Twelve sets of stirring rods 522 are installed at the top of the rotating plate 521. The twelve sets of stirring rods 522 are installed on the upper side of the rotating disk 521 in four groups, increasing in height. The cleaning pipe 53 includes a connecting block 531 and a water spray pipe 533. A conical groove 532 is opened at the bottom end of the connecting block 531. The bottom end of the conical groove 532 is fitted onto the top end of the conical block 514. The water spray pipe 533 is installed at the top end of the connecting block 531. The water spray pipe 533 has a water spray nozzle. A water injection pipe 534 is installed at the top end of the water spray pipe 533. This facilitates stirring and improves mixing efficiency, and makes it convenient for the cleaning pipe to rotate and clean, saving time.

[0027] Working principle: In use, the user first puts the 4,6-pyrimidine raw material into the reactor 1, and then uses the outer cover 42 to install on the upper side of the reactor 4 through the annular block 421 on the bottom side. Then, the servo motor 511 on the bottom side of the reactor 4 is powered on to drive the rotating rod 512 to rotate inside the reactor 4. When the rotating rod 512 rotates, it drives the rotating disk 521 installed in the center to rotate. The rotation of the rotating disk 521 drives the four sets of stirring rods 522 at different heights at the top to rotate. Then, the catalyst is added and mixed through the feed pipe 422 at the top of the outer cover 42. When cleaning is required, the conical groove 532 of the connecting block 531 connected to the water spray pipe 533 is fitted into the conical block 514 at the top of the rotating rod 512 to rotate. Then, clean water is sent into the water spray pipe 533 through the water injection pipe 534 at the top and sprayed into the inside of the reactor 4 for cleaning. The above is the complete working principle of this utility model.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A continuous production apparatus for 4,6-pyrimidine with self-cleaning function, comprising an operating table (1) and a mounting frame (2), wherein the mounting frame (2) is mounted on the upper inner side of the operating table (1), characterized in that: The mounting bracket (2) includes a fixing block (21) and a fixing ring (22). Fixing bearings (211) are installed on both sides of the fixing block (21). The two sets of fixing bearings (211) are respectively installed on the inner wall of the operating table (1). A fixing ring (22) is installed at the top of the fixing block (21). A reaction vessel (4) is placed inside the fixing ring (22). A drive assembly (3) is installed on the right side of the top of the operating table (1). The drive assembly (3) includes a drive box (31) and a drive shaft (32). The drive box (31) is installed on the right side of the top of the operating table (1). The drive box (31) drives the drive shaft (32) installed inside the operating table (1) to rotate. (32) A first gear (33) is installed on the left end, and the bottom end of the first gear (33) meshes with a second gear (34). The second gear (34) is installed in the center of the right fixed bearing (211). An annular groove (41) is opened at the top of the reactor (4). An outer cover (42) is placed at the top of the reactor (4). A cleaning mechanism (5) is installed inside the reactor (4). The cleaning mechanism (5) includes a transmission component (51), a stirring plate (52) and a cleaning pipe (53). The transmission component (51) is installed at the bottom of the reactor (4). The stirring plate (52) is installed on the upper side of the transmission component (51). The cleaning pipe (53) is installed at the top of the transmission component (51).

2. The continuous production apparatus for 4,6-pyrimidine with self-cleaning function according to claim 1, characterized in that: A square groove (11) is provided at the top of the operating table (1), and an extension groove (12) is provided on the right side of the top of the operating table (1).

3. The continuous production apparatus for 4,6-pyrimidine with self-cleaning function according to claim 1, characterized in that: Arc-shaped blocks (221) are installed on both walls of the fixed ring (22), and side blocks (222) are fixed on the outer walls of the two sets of arc-shaped blocks (221). The two sets of side blocks (222) are installed on both sides of the top of the fixed block (21).

4. The continuous production apparatus for 4,6-pyrimidine with self-cleaning function according to claim 1, characterized in that: An annular block (421) is fixed at the bottom of the outer cover (42), and the bottom of the annular block (421) is fitted into the annular groove (41) at the top of the reactor (4). A feed pipe (422) is installed at the center of the outer cover (42).

5. A continuous production apparatus for 4,6-pyrimidine with self-cleaning function according to claim 1, characterized in that: The transmission component (51) includes a servo motor (511) and a limiting bearing (513). The limiting bearing (513) is installed at the bottom of the inside of the reactor (4). A rotating rod (512) is installed at the center of the limiting bearing (513). A conical block (514) is fixed at the top of the rotating rod (512). The servo motor (511) is installed at the bottom of the rotating rod (512).

6. A continuous production apparatus for 4,6-pyrimidine with self-cleaning function according to claim 1, characterized in that: The stirring plate (52) includes a rotating plate (521) and stirring rods (522). The rotating plate (521) is installed on the bottom side of the rotating rod (512). Twelve sets of stirring rods (522) are installed on the top of the rotating plate (521). The twelve sets of stirring rods (522) are installed on the upper side of the rotating plate (521) in four groups, increasing in height.

7. A continuous production apparatus for 4,6-pyrimidine with self-cleaning function according to claim 1, characterized in that: The cleaning pipe (53) includes a connecting block (531) and a water spray pipe (533). A conical groove (532) is opened at the bottom end of the connecting block (531). The bottom end of the conical groove (532) is fitted onto the top end of the conical block (514). A water spray pipe (533) is installed at the top end of the connecting block (531). A water spray nozzle is opened on the water spray pipe (533). A water injection pipe (534) is installed at the top end of the water spray pipe (533).

Images