Extraction device for dihydroxypyrimidine production

Abstract

The utility model provides an extraction device for dihydroxypyrimidine production, and relates to the technical field of dihydroxypyrimidine production.The extraction device comprises an extraction heating box, a discharging box is fixedly installed at the top of the extraction heating box, and a supporting frame is fixedly installed at the bottom of the extraction heating box; a vacuumizing pump is started to extract air on the inner sides of the discharging box and the extraction heating box, the extraction heating box and the discharging box are in a vacuum environment, after extraction is completed, a motor is controlled to drive a driving shaft to rotate, and a reciprocating sliding block can drive a first transmission gear, a rotating shaft and a discharging baffle to rotate through a tooth groove after sliding; after the discharging baffle rotates, the raw materials above the discharging baffle can be intermittently discharged, the extracting agent conveying pipe conveys liquid ethyl alcohol to the inner side of the extraction heating box, intermittently discharged solid and liquid can be evenly fused, and the extraction efficiency of the device is high.

Description

Technical Field

[0001] This utility model relates to the field of dihydroxypyrimidine production technology, and in particular to an extraction device for dihydroxypyrimidine production. Background Technology

[0002] 4,6-Dihydroxypyrimidine (DHP), whose tautomer is called 1-H-pyrimidin-4,6-dione, is widely used as a raw material in fine chemicals or as an intermediate in organic synthesis. It is extensively applied in the preparation of pharmaceuticals, pesticides, and fungicides. For example, in the pharmaceutical industry, it can be used to produce intermediates for sulfonamide drugs such as sulfomotoxin, vitamin B4, antitumor drugs, and adjuvants. Furthermore, it can be used as an intermediate in the synthesis of methoxyacrylate fungicides, etc.

[0003] CN216432269U discloses an extraction device for the production of dihydroxypyrimidine, including a drying box assembly, a stirring assembly installed on the top of the drying box assembly, a vacuum assembly installed on one side of the stirring assembly, a feeding assembly fixedly connected to one end of the vacuum assembly, and the feeding assembly including a telescopic rod with a connecting block installed on the outer surface of one end of the telescopic rod.

[0004] In use, existing devices require a large number of motors for driving during feeding and stirring, resulting in high manufacturing and energy costs. During the feeding process, a large amount of material can only be fed uniformly after vacuuming, which makes the solid-liquid mixing efficiency of the device low during extraction. Therefore, we propose an extraction device for the production of dihydroxypyrimidine. Utility Model Content

[0005] In view of this, this application provides an extraction apparatus for the production of dihydroxypyrimidine, which solves the above-mentioned technical problems to a certain extent.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An extraction apparatus for producing dihydroxypyrimidine includes an extraction heating chamber, a feeding box fixedly installed on the top of the extraction heating chamber, a support frame fixedly installed on the bottom of the extraction heating chamber, and a dihydroxypyrimidine vacuum feeding assembly arranged above the extraction heating chamber, the feeding box and the support frame.

[0008] The dihydroxypyrimidine vacuum feeding assembly includes a rotating shaft, a feeding baffle, a mounting plate, a vacuum pump, and an extraction pipe. The rotating shaft is rotatably mounted inside the feeding box and arranged sequentially from left to right. The feeding baffle is fixedly mounted outside the rotating shaft. The mounting plate is fixedly mounted on one side of the extraction heating box. The vacuum pump is fixedly mounted on the top of the mounting plate. The output end of the extraction pipe is fixedly mounted on one side of the vacuum pump, and the input end of the extraction pipe is fixedly mounted on one side of the extraction heating box and the feeding box.

[0009] As a further improvement to the above solution, a sealing top plate is rotatably installed on one side of the feeding box, a fixing bolt is threaded on the inner side of the sealing top plate, a knob is fixedly installed on the outer side of one end of the fixing bolt, a mounting bracket is fixedly installed on the top of the extraction heating box, a sealing cap is threaded on the bottom of the extraction heating box, and a dihydroxypyrimidine heating extraction component is provided above the dihydroxypyrimidine vacuum feeding assembly and the mounting bracket.

[0010] As a further improvement to the above solution, the dihydroxypyrimidine vacuum feeding assembly also includes a movable shaft, a turntable, a cam, a limiting plate, and a force-bearing block. The movable shaft is rotatably mounted on the top of the support frame and inside the extraction heating box. The turntable is fixedly mounted on the top of the movable shaft. The cam is fixedly mounted on the top of the turntable. The limiting plate is fixedly mounted on one side of the feeding box. The force-bearing block is located on the outside of the cam.

[0011] By adopting the above technical solution, the vacuum pump is turned on to extract the air inside the feeding box and the extraction heating box, creating a vacuum environment for the extraction heating box and the feeding box. After extraction, the control motor drives the drive shaft to rotate. The reciprocating slider, after sliding, drives the first transmission gear, the rotating shaft and the feeding baffle to rotate through the tooth groove. After the feeding baffle rotates, the raw material above it can be fed intermittently, and the extractant transmission pipe can transmit liquid ethanol to the inside of the extraction heating box. This allows the intermittently fed solid to be uniformly mixed with the liquid, making the device have a high extraction efficiency.

[0012] As a further improvement to the above solution, a reciprocating slider is slidably installed on the inner side of the limiting plate, the force block is fixedly installed on one side of the reciprocating slider, and a first transmission gear is fixedly installed on the outer side of the rotating shaft.

[0013] As a further improvement to the above solution, a control groove is provided on the top of the force-bearing block, and the cam fits into the control groove.

[0014] As a further improvement to the above solution, a limiting groove is provided on one side of the limiting plate, and the reciprocating slider is slidably installed inside the limiting groove.

[0015] As a further improvement to the above solution, the bottom of the reciprocating slider is provided with a toothed groove, and the first transmission gear meshes with the adjacent toothed groove.

[0016] As a further improvement to the above solution, the dihydroxypyrimidine heating extraction assembly includes a motor, a drive shaft, a second transmission gear, a stirring rod, and a conveying auger. The motor is fixedly installed on the top inner wall of the mounting frame, the drive shaft is fixedly installed on the output end of the motor, the second transmission gear is fixedly installed on the outside of the drive shaft and the movable shaft, with two adjacent second transmission gears meshing, the stirring rod is fixedly installed around the outside of the movable shaft, and the conveying auger is fixedly installed on the outside of the movable shaft.

[0017] By adopting the above technical solution, the extraction heating box is controlled to heat, and the second transmission gear can drive the movable shaft, stirring rod and conveying auger to rotate after rotation. Stirring for a period of time can promote the dissolution of dihydroxypyrimidine in ethanol, and the conveying auger can prevent the liquid from accumulating at the bottom, so that the stirring effect of the device is better.

[0018] As a further improvement to the above solution, an extractant transfer pipe is fixedly installed on the top of the feeding box, and a threaded hole is opened on one side of the feeding box, with the fixing bolt engaging with the threaded hole.

[0019] As a further improvement to the above solution, the outer side of the extraction heating box is provided with external threads, and the inner wall of the sealing cap is provided with internal threads.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] (1) An extraction device for the production of dihydroxypyrimidine according to the present invention uses a set dihydroxypyrimidine vacuum feeding component to turn on the vacuum pump to extract the air inside the feeding box and the extraction heating box, so that the extraction heating box and the feeding box are in a vacuum environment. After the extraction is completed, the control motor drives the drive shaft to rotate. After the reciprocating slider slides, it can drive the first transmission gear, the rotating shaft and the feeding baffle to rotate through the tooth groove. After the feeding baffle rotates, the raw material above it can be fed intermittently, and the extractant transmission pipe can transmit liquid ethanol to the inside of the extraction heating box. This allows the intermittently fed solid to be uniformly fused with the liquid, so that the extraction efficiency of the device is high.

[0022] (2) The present invention provides an extraction device for the production of dihydroxypyrimidine. The device uses a dihydroxypyrimidine heating extraction component to control the heating of the extraction heating box. After the second transmission gear rotates, it can drive the movable shaft, stirring rod and conveying auger to rotate. Stirring for a period of time can promote the dissolution of dihydroxypyrimidine in ethanol. The conveying auger can prevent the liquid from accumulating at the bottom, so that the device can have a better stirring effect.

[0023] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of an extraction device for the production of dihydroxypyrimidine proposed in this utility model;

[0025] Figure 2 A schematic diagram of a three-dimensional view of a partial structure of an extraction apparatus for producing dihydroxypyrimidine according to an embodiment of this application is shown.

[0026] Figure 3 A schematic diagram of a three-dimensional view of the explosive portion structure of an extraction apparatus for producing dihydroxypyrimidine according to an embodiment of this application is shown;

[0027] Figure 4 for Figure 3 A magnified structural diagram of A in the diagram.

[0028] Figure label:

[0029] 1. Dihydroxypyrimidine vacuum feeding assembly; 2. Dihydroxypyrimidine heating extraction assembly; 3. Extraction heating chamber; 4. Feeding box; 5. Sealed top plate; 6. Fixing bolts; 7. Knob; 8. Mounting bracket; 9. Support frame; 10. Sealing cap;

[0030] 11. Rotating shaft; 12. Feed baffle; 13. Mounting plate; 14. Vacuum pump; 15. Air extraction pipe; 16. Movable shaft; 17. Turntable; 18. Cam; 19. Limiting plate; 20. Force-bearing block;

[0031] 21. Reciprocating slider; 22. First transmission gear; 23. Motor; 24. Drive shaft; 25. Second transmission gear; 26. Stirring rod; 27. Conveyor auger; 28. Extractant transfer tube. Detailed Implementation

[0032] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings;

[0033] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0034] refer to Figure 1-4 An extraction apparatus for producing dihydroxypyrimidine includes an extraction heating chamber 3, a feeding box 4 fixedly installed on the top of the extraction heating chamber 3, a support frame 9 fixedly installed on the bottom of the extraction heating chamber 3, and a dihydroxypyrimidine vacuum feeding assembly 1 arranged above the extraction heating chamber 3, the feeding box 4 and the support frame 9.

[0035] The dihydroxypyrimidine vacuum feeding assembly 1 includes a rotating shaft 11, a feeding baffle 12, a mounting plate 13, a vacuum pump 14, and an extraction pipe 15. The rotating shaft 11 is rotatably mounted inside the feeding box 4 and arranged sequentially from left to right. The feeding baffle 12 is fixedly mounted outside the rotating shaft 11. The mounting plate 13 is fixedly mounted on one side of the extraction heating box 3. The vacuum pump 14 is fixedly mounted on the top of the mounting plate 13. The output end of the extraction pipe 15 is fixedly mounted on one side of the vacuum pump 14, and the input end of the extraction pipe 15 is fixedly mounted on one side of the extraction heating box 3 and the feeding box 4.

[0036] In this embodiment, a sealing top plate 5 is rotatably installed on one side of the feeding box 4, a fixing bolt 6 is threaded on the inner side of the sealing top plate 5, a knob 7 is fixedly installed on the outer side of one end of the fixing bolt 6, a mounting bracket 8 is fixedly installed on the top of the extraction heating box 3, a sealing cap 10 is threaded on the bottom of the extraction heating box 3, and a dihydroxypyrimidine heating extraction assembly 2 is provided above the dihydroxypyrimidine vacuum feeding assembly 1 and the mounting bracket 8.

[0037] In this embodiment, the dihydroxypyrimidine vacuum feeding assembly 1 also includes a movable shaft 16, a turntable 17, a cam 18, a limiting plate 19, and a force-bearing block 20. The movable shaft 16 is rotatably mounted on the top of the support frame 9 and the inner side of the extraction heating box 3. The turntable 17 is fixedly mounted on the top of the movable shaft 16. The cam 18 is fixedly mounted on the top of the turntable 17. The limiting plate 19 is fixedly mounted on one side of the feeding box 4. The force-bearing block 20 is located on the outer side of the cam 18.

[0038] In this embodiment, a reciprocating slider 21 is slidably installed on the inner side of the limiting plate 19, a force block 20 is fixedly installed on one side of the reciprocating slider 21, and a first transmission gear 22 is fixedly installed on the outer side of the rotating shaft 11.

[0039] In this embodiment, a control groove is provided on the top of the force block 20, and the cam 18 is in contact with the control groove; the control groove enables the cam 18 to drive the force block 20 and the reciprocating slider 21 to perform reciprocating linear sliding after rotation.

[0040] In this embodiment, a limiting groove is provided on one side of the limiting plate 19, and the reciprocating slider 21 is slidably installed inside the limiting groove; the limiting groove facilitates the limiting of the reciprocating slider 21, making the sliding of the reciprocating slider 21 more stable.

[0041] In this embodiment, the bottom of the reciprocating slider 21 is provided with a toothed groove, and the first transmission gear 22 meshes with the adjacent toothed groove; a guide groove is provided on one side of the feeding box 4, and a limit block is provided on one side of the reciprocating slider 21, which can make the reciprocating slider 21 more stable during the sliding process. The toothed groove allows the reciprocating slider 21 to drive the first transmission gear 22 to rotate after sliding.

[0042] In this embodiment, the dihydroxypyrimidine heating extraction assembly 2 includes a motor 23, a drive shaft 24, a second transmission gear 25, a stirring rod 26, and a conveying auger 27. The motor 23 is fixedly installed on the top inner wall of the mounting frame 8, the drive shaft 24 is fixedly installed on the output end of the motor 23, the second transmission gear 25 is fixedly installed on the outside of the drive shaft 24 and the movable shaft 16, with adjacent second transmission gears 25 meshing. The stirring rod 26 is fixedly installed around the outside of the movable shaft 16, and the conveying auger 27 is fixedly installed on the outside of the movable shaft 16. The conveying auger 27 can transport the liquid at the bottom to the top, thereby making the device highly efficient during the extraction process.

[0043] In this embodiment, an extractant transfer pipe 28 is fixedly installed on the top of the feeding box 4. A threaded hole is opened on one side of the feeding box 4, and the fixing bolt 6 engages with the threaded hole. The threaded hole facilitates the installation of the sealing top plate 5 on the top of the feeding box 4 by the fixing bolt 6, thereby forming a sealed space. This allows the vacuum pump 14 and the air extraction pipe 15 to extract the air inside the feeding box 4. A filter screen is provided at the connection between the air extraction pipe 15 and the extraction heating box 3 and the feeding box 4 to prevent impurities from entering the inside of the vacuum pump 14 during the extraction process.

[0044] In this embodiment, the outer side of the extraction heating box 3 is provided with external threads, and the inner wall of the sealing cap 10 is provided with internal threads; the internal and external threads cooperate to allow the sealing cap 10 to be tightened on the outer side of the extraction heating box 3, and the sealing cap 10 can be removed after extraction to facilitate the discharge of the solution.

[0045] The specific operation is as follows: the solid raw materials required for the production of dihydroxypyrimidine are placed inside the feeding box 4. After placement, the sealing top plate 5 is closed, and the sealing top plate 5 is locked above the feeding box 4 by fixing bolts 6. At this time, the vacuum pump 14 is turned on to extract the air inside the feeding box 4 and the extraction heating box 3, so that the extraction heating box 3 and the feeding box 4 are in a vacuum environment. After extraction, the motor 23 is controlled to drive the drive shaft 24 to rotate. The drive shaft 24 can drive the turntable 17 to rotate through the second transmission gear 25. The turntable 17 can drive the force block 20 and the reciprocating slider 21 to perform reciprocating linear motion through the cam 18. After sliding, the reciprocating slider 21 can drive the first transmission gear 22, the rotating shaft 11 and the feeding box through the tooth groove. The baffle 12 rotates, allowing the raw material above it to be fed intermittently. The extractant transfer pipe 28 then transfers liquid ethanol to the inside of the extraction heating tank 3, ensuring that the intermittently fed solids are evenly mixed with the liquid, resulting in high extraction efficiency. The extraction heating tank 3 is heated, and the second transmission gear 25 rotates, driving the movable shaft 16, stirring rod 26, and transfer auger 27 to rotate. Stirring for a period of time promotes the dissolution of dihydroxypyrimidine in ethanol. The transfer auger 27 prevents the liquid from accumulating at the bottom, ensuring good stirring effect. After extraction, the sealing cap 10 can be removed, and the solution can be discharged from the bottom of the extraction heating tank 3, making the operation of the device convenient and quick.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extraction apparatus for the production of dihydroxypyrimidine, characterized in that, include: An extraction heating box (3) is provided, with a feeding box (4) fixedly installed on the top of the extraction heating box (3) and a support frame (9) fixedly installed on the bottom of the extraction heating box (3). A dihydroxypyrimidine vacuum feeding assembly (1) is provided above the extraction heating box (3), the feeding box (4) and the support frame (9). The dihydroxypyrimidine vacuum feeding assembly (1) includes a rotating shaft (11), a feeding baffle (12), a mounting plate (13), a vacuum pump (14), and a suction pipe (15). The rotating shaft (11) is rotatably mounted inside the feeding box (4) and arranged sequentially from left to right. The feeding baffle (12) is fixedly mounted outside the rotating shaft (11). The mounting plate (13) is fixedly mounted on one side of the extraction heating box (3). The vacuum pump (14) is fixedly mounted on the top of the mounting plate (13). The output end of the suction pipe (15) is fixedly mounted on one side of the vacuum pump (14). The input end of the suction pipe (15) is fixedly mounted on one side of the extraction heating box (3) and the feeding box (4).

2. The extraction apparatus for producing dihydroxypyrimidine according to claim 1, characterized in that, A sealing top plate (5) is rotatably installed on one side of the feeding box (4). A fixing bolt (6) is threaded on the inner side of the sealing top plate (5). A knob (7) is fixedly installed on the outer side of one end of the fixing bolt (6). A mounting bracket (8) is fixedly installed on the top of the extraction heating box (3). A sealing cap (10) is threaded on the bottom of the extraction heating box (3). A dihydroxypyrimidine heating extraction assembly (2) is provided above the dihydroxypyrimidine vacuum feeding assembly (1) and the mounting bracket (8).

3. The extraction apparatus for producing dihydroxypyrimidine according to claim 1, characterized in that, The dihydroxypyrimidine vacuum feeding assembly (1) also includes a movable shaft (16), a turntable (17), a cam (18), a limiting plate (19), and a force-bearing block (20). The movable shaft (16) is rotatably mounted on the top of the support frame (9) and the inside of the extraction heating box (3). The turntable (17) is fixedly mounted on the top of the movable shaft (16). The cam (18) is fixedly mounted on the top of the turntable (17). The limiting plate (19) is fixedly mounted on one side of the feeding box (4). The force-bearing block (20) is located on the outside of the cam (18).

4. The extraction apparatus for producing dihydroxypyrimidine according to claim 3, characterized in that, A reciprocating slider (21) is slidably installed on the inner side of the limiting plate (19), the force block (20) is fixedly installed on one side of the reciprocating slider (21), and a first transmission gear (22) is fixedly installed on the outer side of the rotating shaft (11).

5. An extraction apparatus for the production of dihydroxypyrimidine according to claim 3, characterized in that, The top of the force-bearing block (20) is provided with a control groove, and the cam (18) is in contact with the control groove.

6. An extraction apparatus for the production of dihydroxypyrimidine according to claim 3, characterized in that, A limiting groove is provided on one side of the limiting plate (19), and the reciprocating slider (21) is slidably installed inside the limiting groove.

7. An extraction apparatus for producing dihydroxypyrimidine according to claim 4, characterized in that, The bottom of the reciprocating slider (21) is provided with a toothed groove, and the first transmission gear (22) meshes with the adjacent toothed groove.

8. An extraction apparatus for the production of dihydroxypyrimidine according to claim 2, characterized in that, The dihydroxypyrimidine heating extraction assembly (2) includes a motor (23), a drive shaft (24), a second transmission gear (25), a stirring rod (26), and a transmission auger (27). The motor (23) is fixedly installed on the top inner wall of the mounting frame (8). The drive shaft (24) is fixedly installed on the output end of the motor (23). The second transmission gear (25) is fixedly installed on the outside of the drive shaft (24) and the movable shaft (16). Two adjacent second transmission gears (25) mesh with each other. The stirring rod (26) is fixedly installed around the outside of the movable shaft (16). The transmission auger (27) is fixedly installed on the outside of the movable shaft (16).

9. An extraction apparatus for producing dihydroxypyrimidine according to claim 2, characterized in that, The top of the feeding box (4) is fixedly installed with an extractant transfer pipe (28), and a threaded hole is opened on one side of the feeding box (4), and the fixing bolt (6) engages with the threaded hole.

10. An extraction apparatus for the production of dihydroxypyrimidine according to claim 2, characterized in that, The extraction heating box (3) has external threads on its outer side, and the sealing cap (10) has internal threads on its inner wall.

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