Drying equipment for medical intermediate production

Abstract

The utility model provides drying equipment for medical intermediate production, which comprises a drying cylinder, a hollow rotating shaft is rotatably arranged in the drying cylinder along the vertical direction, one side of the drying cylinder is connected with a hot air device, and the hot air device is communicated and matched with the rotating shaft; a plurality of limiting rings are fixedly arranged on the inner wall of the drying cylinder, a guide column is slidably arranged in each limiting ring, and the multiple guide columns jointly upwards form a main sieve plate; the outer surfaces of the guide columns are sleeved with first springs, the tops of the first springs are fixedly connected with the bottom of the main screen plate, and the bottoms of the first springs are fixedly connected with the tops of limiting rings. The rotating shaft movably penetrates through the main sieve plate and is fixedly provided with a top block and a roller shaft, the outer surface of the roller shaft is rotationally sleeved with a grinding roller, and the top of the main sieve plate is attached to the bottom of the top block and the bottom of the grinding roller; protruding blocks are fixedly arranged on the main sieve plate and matched with the ejecting blocks. Through reciprocating up-and-down sliding of the sieve plate, blockage in the through holes after the medicine is crushed can be prevented, and the problem of low drying efficiency of equipment caused by medicine accumulation is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medicine drying, and specifically relates to drying equipment for the production of medicine intermediates. Background Art

[0002] Pharmaceutical intermediates are actually some chemical raw materials or chemical products used in the process of drug synthesis. In order to facilitate the synthesis of drugs, these chemical raw materials usually need to be crushed and dried.

[0003] The existing patent with announcement number CN220229872U discloses a pharmaceutical intermediate drying device, including a drying cylinder, a motor is fixedly arranged on the top of the drying cylinder, the output end of the motor passes through the rotating shaft fixedly arranged on the top of the drying cylinder, trays are horizontally arranged at intervals in the drying cylinder, and through holes are opened on the trays; a rolling mechanism for rolling the aggregated material is provided on the rotating shaft, and the rolling mechanism includes a first connecting member which is sleeved on the rotating shaft and transmission connected to the rotating shaft, and a rolling roller and a first scraper which are arranged at intervals on the first connecting member.

[0004] The above device drives the rotating shaft to rotate through the motor, and the rotating shaft drives the rolling mechanism to rotate, so as to crush the material. Moreover, the crushed material will be scraped by the first scraper to the through hole and fall down. However, after being crushed, the material will adhere to the through hole, causing the through hole to be blocked, thereby affecting the drying speed of the device. Utility Model Content

[0005] In order to solve the problems existing in the background technology, the utility model provides a drying device for producing pharmaceutical intermediates.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A drying device for producing pharmaceutical intermediates comprises a drying cylinder, wherein a feeding port and a discharging port are respectively arranged at the top and the bottom of the drying cylinder, a hollow rotating shaft is rotatably arranged in the drying cylinder along the vertical direction, a hot air device is connected to one side of the drying cylinder, and the hot air device is connected and matched with the rotating shaft; a plurality of limiting rings are fixedly arranged on the inner wall of the drying cylinder, and the limiting rings are distributed in a circular array, and a guide column is slidably arranged in each limiting ring, and the plurality of guide columns jointly form a main sieve plate upward, and a plurality of through holes are opened on the main sieve plate, and the circumferential surface of the main sieve plate is in contact with the inner wall of the drying cylinder; a No. 1 spring is sleeved on the outer surface of the guide column, and the top of the No. 1 spring is fixedly connected to the bottom of the main sieve plate, and the bottom of the No. 1 spring is fixedly connected to the top of the limiting ring; the rotating shaft movably passes through the main sieve plate, and a top block and a roller shaft are fixedly arranged on the rotating shaft, and a rolling roller is rotatably sleeved on the outer surface of the roller shaft, and the top of the main sieve plate is in contact with the bottom of the top block and the rolling roller; a convex block is fixedly arranged on the main sieve plate, and the convex block is matched with the top block.

[0008] Furthermore, an air inlet pipe is connected to the output end of the hot air device, the other end of the air inlet pipe passes through the drying cylinder and is rotatably connected to the rotating shaft, and the air inlet pipe is connected to the rotating shaft; a plurality of air guide pipes are connected to the circumferential surface of the rotating shaft, and a plurality of air outlets are opened on the air guide pipes.

[0009] Furthermore, a motor is fixedly arranged on the top of the drying cylinder, and an output end of the motor passes through the drying cylinder and is fixedly connected to the top of the rotating shaft.

[0010] Furthermore, a supporting scraper is fixedly arranged at one end of the top block away from the rotating shaft, a telescopic rod is fixedly arranged at the bottom of the supporting scraper, and a No. 2 spring is sleeved on the outer surface of the telescopic rod; the top of the No. 2 spring is fixedly connected to the bottom of the supporting scraper, and a movable plate is fixedly arranged at the bottom of the No. 2 spring, and the movable plate is in abutment with the top of the main screen plate.

[0011] Furthermore, two groups of single scraper assemblies are horizontally arranged in the drying cylinder, and the single scraper assemblies are located below the main screen plate.

[0012] Furthermore, the single scraper assembly includes a secondary sieve plate, a plurality of holes are formed on the secondary sieve plate, the circumferential surface of the secondary sieve plate is fixedly connected to the inner wall of the drying cylinder, and the secondary sieve plate is rotatably sleeved on the rotating shaft; a second fixing ring is fixedly sleeved on the circumferential surface of the rotating shaft, and an ordinary scraper is fixedly set on the outer surface of the second fixing ring, and the bottom of the ordinary scraper is in contact with the top of the secondary sieve plate.

[0013] This application has the following beneficial effects:

[0014] When the rotating shaft drives the rolling roller and the top block to rotate, the top block will contact the convex block and press the convex block downward, thereby driving the screen plate to slide downward. When the top block is out of contact with the convex block, the No. 1 spring will drive the screen plate to slide upward. The reciprocating up and down sliding of the screen plate can prevent the drug from being crushed and forming blockage in the through hole, reducing the problem of low drying efficiency of the equipment caused by drug accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 This utility model Figure 2 A partial enlarged schematic diagram in the middle;

[0019] Figure 4 This utility model Figure 2 A partial enlarged schematic diagram of point B in the middle;

[0020] Figure 5 It is a cross-sectional view of the airway tube of the utility model;

[0021] Figure 6 It is a schematic diagram of the supporting scraper structure of the utility model.

[0022] Description of reference numerals:

[0023] 1. Drying cylinder; 2. Feed inlet; 3. Motor; 4. Discharge outlet; 5. Hot air device; 6. Air inlet pipe; 7. Rotating shaft; 8. First fixed ring; 9. Ordinary scraper; 10. Main sieve plate; 11. Guide column; 12. No. 1 spring; 13. Limiting ring; 14. Support scraper; 15. Telescopic rod; 16. No. 2 spring; 17. Movable plate; 18. Top block; 19. Bump; 20. Auxiliary sieve plate; 21. Roller; 22. Air guide pipe; 23. Second fixed ring; 24. Roller shaft. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-Figure 6 As shown, the technical solution adopted by the utility model is as follows: a drying device for producing pharmaceutical intermediates, comprising a drying cylinder 1, a feed inlet 2 is fixedly arranged at the top of the drying cylinder 1, and a discharge port 4 is fixedly arranged at the bottom of the drying cylinder 1. The material to be dried is put in from the feed inlet 2, and the dried material is discharged from the discharge port 4.

[0026] The motor 3 is fixedly arranged on the top of the drying cylinder 1, and the output end of the motor 3 passes through the top of the drying cylinder 1 and is fixedly arranged with a rotating shaft 7, which is hollow. One side of the drying cylinder 1 is connected to a hot air device 5, and the output end of the hot air device 5 is connected to an air inlet pipe 6, and the other end of the air inlet pipe 6 passes through the drying cylinder 1 and is rotatably connected to the rotating shaft 7. In addition, the air inlet pipe 6 is connected to the rotating shaft 7. A plurality of air guide pipes 22 are connected on the circumferential surface of the rotating shaft 7, and a plurality of air outlets are opened on the air guide pipes 22.

[0027] The hot air device 5 delivers hot air to the air guide pipe 22 through the air inlet pipe 6 and the rotating shaft 7. The hot air is delivered to the drying cylinder 1 through the air outlet on the air guide pipe 22, thereby introducing the hot air into the drying cylinder 1 to accelerate the drying speed of the material.

[0028] A plurality of limit rings 13 are fixedly arranged on the inner wall of the drying cylinder 1. A main sieve plate 10 is horizontally arranged in the drying cylinder 1, and a plurality of through holes are opened on the main sieve plate 10. The circumferential surface of the main sieve plate 10 is in contact with the inner wall of the drying cylinder 1. A plurality of guide posts 11 are fixedly arranged on the bottom of the main sieve plate 10, and the guide posts 11 are distributed in a circumferential array. The guide posts 11 are limitedly slidably matched with the limit rings 13.

[0029] A No. 1 spring 12 is sleeved on the outer surface of the guide column 11 , the top of the No. 1 spring 12 is fixedly connected to the bottom of the main sieve plate 10 , and the bottom of the No. 1 spring 12 is fixedly connected to the top of the limit ring 13 .

[0030] The rotating shaft 7 movably penetrates the main screen plate 10 , and a first fixing ring 8 is fixedly sleeved on the circumferential surface of the rotating shaft 7 . Two top blocks 18 and two rollers 24 are fixedly arranged on the outer surface of the first fixing ring 8 .

[0031] A support scraper 14 is fixedly arranged at one end of each top block 18 away from the rotating shaft 7, a telescopic rod 15 is fixedly arranged at the bottom of the support scraper 14, and a No. 2 spring 16 is sleeved on the outer surface of the telescopic rod 15. The top of the No. 2 spring 16 is fixedly connected to the bottom of the support scraper 14, and a movable plate 17 is fixedly arranged at the bottom of the No. 2 spring 16, and the movable plate 17 is in contact with the top of the main screen plate 10.

[0032] The outer surface of each roller shaft 24 is sleeved with a laminating roller 21 .

[0033] The top of the main sieve plate 10 is fitted with the top block 18 and the bottom of the rolling roller 21. The main sieve plate 10 is fixedly provided with a protrusion 19, which is matched with the top block 18 in a transmission manner.

[0034] The top block 18 and the rolling roller 21 are arranged at intervals.

[0035] The motor 3 is started, and the output end of the motor 3 drives the rotating shaft 7 to rotate, the rotating shaft 7 drives the first fixing ring 8 to rotate, and the first fixing ring 8 drives the top block 18, the supporting scraper 14, the roller 24 and the rolling roller 21 to rotate synchronously. When the rolling roller 21 rotates, it also rotates around the axis of the roller 24.

[0036] The top block 18 will contact with the protrusion 19 during the rotation process. Since the top block 18 itself will not change its position in the vertical direction, when the top block 18 contacts with the protrusion 19, the main screen plate 10 will slide downward.

[0037] The main screen plate 10 slides downward, driving the guide column 11 to slide downward in the stop ring 13, at which time the No. 1 spring 12 is compressed. When the top block 18 passes the highest point of the protrusion 19 and continues to rotate, the main screen plate 10 will slide upward under the elastic action of the No. 1 spring 12.

[0038] When the top block 18 is completely separated from the protrusion 19, the main screen plate 10 returns to its initial position.

[0039] During this period, the movable plate 17 is always in contact with the main screen plate 10 with the cooperation of the No. 2 spring 16 and the telescopic rod 15, so as to facilitate more comprehensive leveling of the materials accumulated on the main screen plate 10.

[0040] Two groups of single scraper assemblies are fixedly arranged in the drying cylinder 1 along the horizontal direction, and the single scraper assemblies are located below the main screen plate 10.

[0041] The single scraper assembly includes a secondary sieve plate 20, a plurality of holes are provided on the secondary sieve plate 20, the circumferential surface of the secondary sieve plate 20 is fixedly connected to the inner wall of the drying cylinder 1, and the secondary sieve plate 20 is rotatably sleeved on the rotating shaft 7. A second fixing ring 23 is fixedly sleeved on the circumferential surface of the rotating shaft 7, and a common scraper 9 is fixedly arranged on the outer surface of the second fixing ring 23, and the bottom of the common scraper 9 contacts the top of the secondary sieve plate 20.

[0042] The rotation of the rotating shaft 7 will also drive the second fixed ring 23 to rotate, thereby driving the ordinary scraper 9 to rotate. The rotation of the ordinary scraper 9 will flatten the material on the auxiliary screen plate 20.

[0043] The agglomerated materials are crushed by the rolling roller 21 and flattened by the support scraper 14. As the main screen plate 10 slides up and down, the materials quickly fall onto the auxiliary screen plate 20 below and are scraped by the common scraper 9 on the auxiliary screen plate 20. Then, the materials fall onto the auxiliary screen plate 20 of the next layer and are scraped by the common scraper 9 on the auxiliary screen plate 20 of the next layer, and finally discharged from the discharge port 4.

[0044] As the material falls, the hot air will take away the moisture in the material, and the material will be fully dried after being processed by one layer of main sieve plate 10 and two layers of auxiliary sieve plates 20.

[0045] How it works

[0046] When the device is in use, the hot air device 5 is started first.

[0047] The hot air device 5 delivers hot air to the air guide pipe 22 through the air inlet pipe 6 and the rotating shaft 7. The hot air is delivered to the drying cylinder 1 through the air outlet on the air guide pipe 22, thereby introducing the hot air into the drying cylinder 1 to accelerate the drying speed of the material.

[0048] Put the material to be dried into the feed port 2.

[0049] The motor 3 is started, and the output end of the motor 3 drives the rotating shaft 7 to rotate, the rotating shaft 7 drives the first fixing ring 8 to rotate, and the first fixing ring 8 drives the top block 18, the supporting scraper 14, the roller 24 and the rolling roller 21 to rotate synchronously. Moreover, the rolling roller 21 also rotates around the axis of the roller 24 while rotating.

[0050] The top block 18 will contact with the protrusion 19 during the rotation process. Since the top block 18 itself will not change its position in the vertical direction, when the top block 18 contacts with the protrusion 19, the main screen plate 10 will slide downward.

[0051] The main screen plate 10 slides downward, driving the guide column 11 to slide downward in the stop ring 13, at which time the No. 1 spring 12 is compressed. When the top block 18 passes the highest point of the protrusion 19 and continues to rotate, the main screen plate 10 will slide upward under the elastic action of the No. 1 spring 12.

[0052] When the top block 18 is completely separated from the protrusion 19, the main screen plate 10 returns to its initial position.

[0053] During this period, the movable plate 17 is always in contact with the main screen plate 10 with the cooperation of the No. 2 spring 16 and the telescopic rod 15, so as to facilitate more comprehensive leveling of the materials accumulated on the main screen plate 10.

[0054] The rotation of the rotating shaft 7 will also drive the second fixed ring 23 to rotate, thereby driving the ordinary scraper 9 to rotate. The rotation of the ordinary scraper 9 will flatten the material on the auxiliary screen plate 20.

[0055] The agglomerated materials are crushed by the rolling roller 21 and flattened by the support scraper 14. As the main screen plate 10 slides up and down, the materials quickly fall onto the auxiliary screen plate 20 below and are scraped by the common scraper 9 on the auxiliary screen plate 20. Then, the materials fall onto the auxiliary screen plate 20 of the next layer and are scraped by the common scraper 9 on the auxiliary screen plate 20 of the next layer, and finally discharged from the discharge port 4.

[0056] As the material falls, the hot air will take away the moisture in the material, and the material will be fully dried after being processed by one layer of main sieve plate 10 and two layers of auxiliary sieve plates 20.

Claims

1. A drying device for producing pharmaceutical intermediates, characterized in that: The drying cylinder (1) comprises a drying cylinder (1), wherein a feed port (2) and a discharge port (4) are respectively arranged at the top and the bottom of the drying cylinder (1), a hollow rotating shaft (7) is arranged in the drying cylinder (1) to rotate in a vertical direction, a hot air device (5) is connected to one side of the drying cylinder (1), and the hot air device (5) is in communication with the rotating shaft (7); A plurality of limiting rings (13) are fixedly arranged on the inner wall of the drying cylinder (1), and the limiting rings (13) are distributed in a circular array. A guide column (11) is slidably arranged in each limiting ring (13), and the plurality of guide columns (11) together form a main sieve plate (10) upwardly, and a plurality of through holes are opened on the main sieve plate (10), and the circumferential surface of the main sieve plate (10) is in contact with the inner wall of the drying cylinder (1); a No. 1 spring (12) is sleeved on the outer surface of the guide column (11), and the top of the No. 1 spring (12) is fixedly connected to the bottom of the main sieve plate (10), and the bottom of the No. 1 spring (12) is fixedly connected to the top of the limiting ring (13); The rotating shaft (7) movably penetrates the main screen plate (10), a top block (18) and a roller shaft (24) are fixedly arranged on the rotating shaft (7), a rolling roller (21) is rotatably sleeved on the outer surface of the roller shaft (24), and the top of the main screen plate (10) is in contact with the bottom of the top block (18) and the rolling roller (21); A protrusion (19) is fixedly arranged on the main sieve plate (10), and the protrusion (19) cooperates with the top block (18).

2. The drying equipment for producing pharmaceutical intermediates according to claim 1, characterized in that: An air inlet pipe (6) is arranged at the output end of the hot air device (5), the other end of the air inlet pipe (6) passes through the drying cylinder (1) and is rotatably connected to the rotating shaft (7), and the air inlet pipe (6) is connected to the rotating shaft (7); a plurality of air guide pipes (22) are arranged on the circumferential surface of the rotating shaft (7), and a plurality of air outlets are provided on the air guide pipes (22).

3. The drying equipment for producing pharmaceutical intermediates according to claim 2, characterized in that: A motor (3) is fixedly arranged on the top of the drying cylinder (1), and an output end of the motor (3) passes through the drying cylinder (1) and is fixedly connected to the top of the rotating shaft (7).

4. The drying equipment for producing pharmaceutical intermediates according to claim 1, characterized in that: A support scraper (14) is fixedly arranged at one end of the top block (18) away from the rotating shaft (7); a telescopic rod (15) is fixedly arranged at the bottom of the support scraper (14); a second spring (16) is sleeved on the outer surface of the telescopic rod (15); the top of the second spring (16) is fixedly connected to the bottom of the support scraper (14); a movable plate (17) is fixedly arranged at the bottom of the second spring (16); and the movable plate (17) is in contact with the top of the main screen plate (10).

5. The drying equipment for producing pharmaceutical intermediates according to claim 1, characterized in that: Two groups of single scraper assemblies are horizontally arranged in the drying cylinder (1), and the single scraper assemblies are located below the main screen plate (10).

6. The drying equipment for producing pharmaceutical intermediates according to claim 5, characterized in that: The single scraper assembly comprises a secondary sieve plate (20), a plurality of holes are provided on the secondary sieve plate (20), the circumferential surface of the secondary sieve plate (20) is fixedly connected to the inner wall of the drying cylinder (1), and the secondary sieve plate (20) is rotatably sleeved on the rotating shaft (7); a second fixing ring (23) is fixedly sleeved on the circumferential surface of the rotating shaft (7), and a common scraper (9) is fixedly provided on the outer surface of the second fixing ring (23), and the bottom of the common scraper (9) is in contact with the top of the secondary sieve plate (20).

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