Drying device for acetaminophen production

Abstract

The invention relates to the field of acetaminophen drying, and discloses a drying device for acetaminophen production, which comprises a drying box body, a blanking part, a turning part, a heat exchange circulating part, a heating part and a blanking collecting part, and the heat exchange circulating part is used for replacing gas in the drying box body. Compared with the prior art, the acetaminophen drying device has the advantages that through the arrangement of the turning assembly, acetaminophen on the drying conveying belt can be jacked up and turned over, the acetaminophen at the jacked-up position can be loosened, the gap between the acetaminophen and the jacked-up position can be increased, internal hot air can make contact with the acetaminophen at the bottom, and the drying effect is achieved; meanwhile, the acetaminophen at the highest position is jacked to slide down towards the two sides, the overturning effect of the acetaminophen is achieved, the acetaminophen makes full contact with hot air through overturning, and the drying effect is obvious.

Description

Technical Field

[0001] The invention relates to the field of acetaminophen drying, in particular to a drying device for acetaminophen production. Background Art

[0002] Acetaminophen is an acetanilide antipyretic and analgesic, also known as paracetamol. It is a white crystal or crystalline powder. It is odorless and slightly bitter. It is used to treat fever and can also be used to relieve mild to moderate pain such as headache, muscle pain, joint pain, neuralgia, dysmenorrhea, cancer pain and postoperative analgesia.

[0003] Acetaminophen is prepared by reacting acetic anhydride with para-aminophenol in water to quickly complete N-acetylation while retaining the phenolic hydroxyl group. After cooling, the product is crystallized, filtered, washed with water, drained, and dried to obtain a crude product of acetaminophen. During the preparation process, acetaminophen needs to be dried. Drying can remove moisture from solid or paste drugs and reduce the water content of the drugs to ensure the quality of the drugs and meet the shelf life and stability requirements. Drying can prevent the product from sticking due to excessive humidity, thereby ensuring the fluidity and uniformity of the product. At the same time, the dried acetaminophen is easier to store.

[0004] During the drying process, according to the requirements of the Chinese Pharmacopoeia, the method for determining the loss on drying of acetaminophen mentions that, unless otherwise specified, it should be dried at 105°C to constant weight. Therefore, the temperature of the oven should be strictly controlled at 105°C to ensure that acetaminophen will not decompose or deteriorate due to excessively high temperatures. During drying, the traditional method is to spread acetaminophen on the ground and use hot air to dry it. Since the spread acetaminophen is not easy to turn over, the acetaminophen on the top can be dried quickly, and the acetaminophen at the bottom has a poor drying effect. In addition, during the primary drying process, as the water evaporates, the water content of the drying gas is high, which affects the subsequent drying of acetaminophen. For this reason, a drying device for acetaminophen production is proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a drying device for acetaminophen production, which has the advantages of being able to lift and turn acetaminophen during the drying process, automatically realizing hot air exchange after drying for a certain period of time, and ensuring the drying effect of acetaminophen, thereby solving a series of problems such as acetaminophen being difficult to turn over during the drying process, the bottom being difficult to dry, and the poor drying effect in one time.

[0006] To achieve the above object, the present invention provides the following technical solution: a drying device for producing acetaminophen, comprising: A drying box body, wherein a drying conveyor belt is arranged in the drying box body; A material unloading component, which is arranged on the drying box and is used to place the acetaminophen on the drying conveyor belt; A turning component, which is arranged in the drying box and is used to turn over the acetaminophen on the drying conveyor belt. The turning component includes a guide column fixedly installed on the drying box, a guide block is slidably sleeved on the guide column, a rotating shaft is rotatably installed on one side of the guide block, a plurality of groups of connecting blocks are fixedly installed on the rotating shaft, a contact roller is rotatably installed on the connecting block, and the contact roller contacts the drying conveyor belt, a paving rod is fixedly installed on the top of the guide block, and the paving rod is arranged in a U-shaped structure; A heat exchange circulation component, which is arranged in the drying box and is used to replace the gas inside the drying box. The heat exchange circulation component includes a blowing hole and an air outlet hole opened on the two side walls of the drying box. A blower is arranged in the blowing hole and the air outlet hole. A blocking door plate is arranged in the blowing hole. A heating component, which is arranged on the side of the drying box and is used for heating the air; The material collecting component is arranged at a lower position on one side of the drying conveyor belt and is used for collecting the dried acetaminophen.

[0007] Preferably, the unloading component includes a storage box movably mounted on the drying box body, a plurality of unloading holes are provided at the bottom of the storage box, a movable groove is provided on the side of the storage box, a movable baffle is movably mounted on the movable groove, a plurality of baffle holes are provided on the top of the movable baffle, and the plurality of baffle holes are staggered with the unloading holes.

[0008] Preferably, a fixed rack is fixedly installed on the inner wall of the top side of the drying box body, a rotating disk is installed on the side of the storage box, an outer gear ring is fixedly installed on the outer side of the rotating disk, the outer gear ring is meshed with the fixed rack, a driving column is fixedly installed on one side of the rotating disk, a driving frame is fixedly installed on one side of the movable baffle, the driving frame is movably connected to the driving column, an upper frame is fixedly installed on the top of the storage box, a top frame is fixedly installed on the top of the drying box body, and a telescopic cylinder is arranged between the top frame and the upper frame.

[0009] Preferably, a servo motor is fixedly installed on the side of the drying box body, and the output end of the servo motor is connected to a rotating screw, which is located in the drying box body. A screw sleeve is threadedly sleeved on the rotating screw, and a guide block is fixedly installed on the side of the screw sleeve. A rotating gear is fixedly sleeved on the rotating shaft, and a mounting rack is fixedly installed inside the drying box body, and the mounting rack is meshed with the rotating gear.

[0010] Preferably, a door panel groove is opened on the inner wall on the top side of the blowing hole, and the blocking door panel extends into the door panel groove. A return spring is fixedly installed between the blocking door panel and the top of the door panel groove. A pushing block is slidably sleeved on the guide column, and a rotating top rod is rotatably installed on one side of the pushing block. A driving block is rotatably installed on one end of the rotating top rod, and the driving block is fixedly connected to the side of the blocking door panel.

[0011] Preferably, a fixing plate is fixedly mounted on the side wall of the drying box, a first conductive block is fixedly mounted on the side of the fixing plate, a second conductive block is fixedly mounted on the side of the pushing block, and the first conductive block and the second conductive block are electrically connected.

[0012] Preferably, the heating component includes a heating box fixedly mounted on the side of the drying box body, the heating box is arranged on one side of the blowing hole, a heating control panel is arranged on the side of the heating box, a heating rod is arranged in the heating box, and a plurality of n-type connecting pipes are connected to the upper part of the heating box.

[0013] Preferably, the material collection component includes a collection box arranged in the drying box body, the bottom of the collection box extends to the bottom of the drying box body, the collection box is located below one side of the drying conveyor belt, a bottom bottom slant plate is fixedly installed inside the drying box body, the bottom bottom slant plate is located below the drying conveyor belt, and a scraper is fixedly installed inside the drying box body, and the scraper is in contact with the drying conveyor belt.

[0014] Compared with the prior art, the present invention provides a drying device for acetaminophen production, which has the following beneficial effects: 1. A drying device for producing acetaminophen, through the setting of a flipping component, the acetaminophen on the drying conveyor belt can be lifted up and flipped, the acetaminophen at the lifted position will be loose, the gap between them will increase, the hot air inside can contact with the acetaminophen at the bottom, to achieve a drying effect, and at the same time, the acetaminophen at the highest point of the lift will slide to both sides, to achieve a flipping effect of the acetaminophen, through flipping, the acetaminophen is fully in contact with the hot air, and the drying effect is obvious.

[0015] 2. The drying device for producing acetaminophen is provided with a heat exchange circulation component. When the hot air in the drying box is dried for a certain period of time, the blocking door panel will be automatically opened, and the blower will be operated at the same time to realize a hot air exchange. The fresh hot air can fully dry the acetaminophen. The drying effect of the acetaminophen is guaranteed through multiple hot air exchanges.

[0016] 3. The drying device for producing acetaminophen can realize automatic material replenishment after the acetaminophen on the drying conveyor belt is dried and collected by setting the unloading component, and the storage box is moved down, without the need for manual material replenishment by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the middle part of the present invention; Figure 3 It is a schematic diagram of a partial cross-sectional structure of the present invention; Figure 4 It is a schematic diagram of a partial three-dimensional structure of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the flipping component of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the heat exchange cycle component of the present invention; Figure 7 It is a structural schematic diagram of the heating component of the present invention; Figure 8 It is a schematic diagram of the structure of the explosion of the blanking component of the present invention; Fig. 9 For the present invention Figure 2 The structural diagram of part A in the figure; Fig.10 It is a three-dimensional structural schematic diagram of the blanking and collecting component of the present invention.

[0018] In the figure: 1, drying box; 2, drying conveyor belt; 3, unloading component; 4, storage box; 5, unloading hole; 6, moving groove; 7, moving baffle; 8, baffle hole; 9, fixed rack; 10, rotating plate; 11, outer gear ring; 12, driving column; 13, driving frame; 14, upper frame; 15, top frame; 16, telescopic cylinder; 17, flipping component; 18, servo motor; 19, rotating screw; 20, screw sleeve; 21, guide block; 22, guide column; 23, rotating shaft; 24, connecting block; 25, contact roller; 26, paving rod; 2 7. Install the rack; 28. Rotate the gear; 29. ​​Heat exchange circulation component; 30. Blowing hole; 31. Air outlet; 32. Blower; 33. Door panel slot; 34. Block the door panel; 35. Reset spring; 36. Push block; 37. Rotate the top rod; 38. Drive block; 39. Fixed plate; 40. First conductive block; 41. Second conductive block; 42. Heating component; 43. Heating box; 44. Heating control panel; 45. Heating rod; 46. N-type connecting pipe; 47. Material collection component; 48. Bottom bottom inclined plate; 49. Scraper; 50. Collection box. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a drying device for acetaminophen production.

[0021] In a typical implementation of the present application, Figure 1 , Figure 2 , Figure 8 and Fig. 9 As shown, a drying device for producing acetaminophen comprises: A drying box 1 is provided with a drying conveyor belt 2 in the drying box 1, and acetaminophen is placed on the drying conveyor belt 2 for drying; A material discharge component 3 is arranged on the drying box body 1 and is used to place acetaminophen on the drying conveyor belt 2. The material discharge component 3 includes a storage box 4 movably mounted on the drying box body 1. A plurality of material discharge holes 5 are provided at the bottom of the storage box 4. A movable groove 6 is provided on the side of the storage box 4. A movable baffle 7 is movably mounted on the movable groove 6. A plurality of baffle holes 8 are provided on the top of the movable baffle 7. The plurality of baffle holes 8 are staggered with the material discharge holes 5. A fixed rack 9 is fixedly mounted on the inner wall of the top side of the drying box body 1. A rotating disk 10 is installed on the side of the storage box 4, and an outer gear ring 11 is fixedly installed on the outer side of the rotating disk 10, and the outer gear ring 11 is meshed with the fixed rack 9. A driving column 12 is fixedly installed on one side of the rotating disk 10, and a driving frame 13 is fixedly installed on one side of the movable baffle 7. The driving frame 13 is movably connected to the driving column 12. An upper frame 14 is fixedly installed on the top of the storage box 4, and a top frame 15 is fixedly installed on the top of the drying box 1, and a telescopic cylinder 16 is arranged between the top frame 15 and the upper frame 14.

[0022] Place the items to be dried in the storage box 4 on the unloading component 3, start the telescopic cylinder 16 to drive the storage box 4 to move downward, and the outer gear ring 11 outside the storage box 4 will rotate under the action of the fixed rack 9. The rotation of the outer gear ring 11 drives the rotating disk 10 to rotate, and the driving column 12 will rotate to one side, thereby moving the driving frame 13, and the movement of the driving frame 13 drives the moving baffle 7 to move. The baffle hole 8 on the moving baffle 7 is misaligned with the unloading hole 5 at the beginning until it coincides with the movement. The acetaminophen in the storage box 4 will fall into the drying box 1 below. After moving downward for a certain period of time, the telescopic cylinder 16 can return to its position, and the unloading of acetaminophen can be achieved by moving the storage box 4 downward.

[0023] As a preferred implementation in this embodiment, Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the turning component 17 is arranged in the drying box 1, and is used to turn over the acetaminophen on the drying conveyor belt 2. The turning component 17 includes a guide column 22 fixedly installed on the drying box 1, and a guide block 21 is slidably sleeved on the guide column 22. A rotating shaft 23 is rotatably installed on one side of the guide block 21. A plurality of groups of connecting blocks 24 are fixedly installed on the rotating shaft 23. A contact roller 25 is rotatably installed on the connecting block 24. The contact roller 25 contacts the drying conveyor belt 2. The top of the guide block 21 is fixedly installed There is a spreading rod 26, which is arranged in a U-shaped structure. A servo motor 18 is fixedly installed on the side of the drying box body 1. The output end of the servo motor 18 is connected to a rotating screw 19. The rotating screw 19 is located in the drying box body 1. A screw sleeve 20 is threadedly sleeved on the rotating screw 19. A guide block 21 is fixedly installed on the side of the screw sleeve 20. A rotating gear 28 is fixedly sleeved on the rotating shaft 23. A mounting rack 27 is fixedly installed inside the drying box body 1, and the mounting rack 27 is meshed with the rotating gear 28.

[0024] After unloading, the acetaminophen is located on the drying conveyor belt 2. The servo motor 18 on the flipping component 17 is started to run. The servo motor 18 can realize forward and reverse rotation. The servo motor 18 drives the rotating screw 19 to rotate, thereby driving the screw sleeve 20 to move. The provided guide block 21 and guide column 22 can limit the horizontal position of the movement of the screw sleeve 20. The movement of the screw sleeve 20 can drive the guide block 21 to move, thereby driving the rotating shaft 23 to move back and forth. The rotating gear 28 on the rotating shaft 23 is meshed with the mounting rack 27. During the movement, the rotating gear 28 will rotate, and the rotating shaft 23 will also move while moving. Rotation, after the rotation of the rotating shaft 23, multiple connecting blocks 24 are driven to rotate. The rotating shaft 23 is located below the drying conveyor belt 2. After the connecting block 24 rotates, the drying conveyor belt 2 will be lifted up to form a convex shape. After the drying conveyor belt 2 is lifted up, the acetaminophen located at the lifted position will be loosened, and the gap between them will increase. The hot air inside can contact the acetaminophen at the bottom to achieve a drying effect. At the same time, the acetaminophen after being lifted up will increase the frequency of movement. The acetaminophen at the highest point will slide to both sides to achieve a flipping effect of the acetaminophen. Through flipping, the acetaminophen can fully contact with the hot air, and the drying effect is obvious.

[0025] Furthermore, in the above scheme, after the guide block 21 moves, it will drive the spreading rod 26 to move. The spreading rod 26 is arranged in a U-shaped structure. The spreading rod 26 is located on both sides of the raised drying conveyor belt 2. The spreading rod 26 can realize the spreading of acetaminophen, avoiding the problem of uneven thickness of acetaminophen after lifting and turning, which affects the drying. At the same time, the acetaminophen after unloading can also be spread.

[0026] In this embodiment, the drying conveyor belt 2 selects a Teflon conveyor belt. The Teflon conveyor belt has the best temperature resistance among all conveyor belts, and the highest temperature resistance is 360°C. The Teflon Teflon material conveyor belt maintains a certain softness at different temperatures. The Teflon conveyor belt has a non-sticky surface to ensure that food will not adhere during processing. Due to the anti-pollution properties of the Teflon conveyor belt, it becomes an ideal choice for the pharmaceutical industry. It will not release toxic gases at normal cooking temperatures, begins to decompose at 260°C, and releases substances harmful to the human body at 350°C. Therefore, it is safe to use the Teflon conveyor belt in an environment of 100°C and will not release toxic substances.

[0027] As a preferred implementation in this embodiment, Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the heat exchange circulation component 29 is arranged in the drying box body 1, and is used for replacing the gas inside the drying box body 1. The heat exchange circulation component 29 includes a blowing hole 30 and an air outlet hole 31 opened on the two side walls of the drying box body 1. The blowing hole 30 and the air outlet hole 31 are both provided with a blower 32. A blocking door plate 34 is arranged in the blowing hole 30. A door plate groove 33 is opened on the top inner wall of the blowing hole 30. The blocking door plate 34 extends into the door plate groove 33. The blocking door plate 34 is fixedly installed between the top of the door plate groove 33 and the blocking door plate 34. There is a return spring 35, and a push block 36 is slidably sleeved on the guide column 22. A rotating top rod 37 is rotatably installed on one side of the push block 36, and a driving block 38 is rotatably installed on one end of the rotating top rod 37. The driving block 38 is fixedly connected to the side of the blocking door plate 34. A fixing plate 39 is fixedly installed on the side wall of the drying box 1, and a first conductive block 40 is fixedly installed on the side of the fixing plate 39. A second conductive block 41 is fixedly installed on the side of the push block 36, and the first conductive block 40 and the second conductive block 41 are electrically connected.

[0028] As the servo motor 18 runs, the screw sleeve 20 is driven to move back and forth once. When the screw sleeve 20 returns to one side, it pushes the push block 36 on the heat exchange circulation component 29. The push block 36 moves to drive the rotating push rod 37 to move, so that the blocking door plate 34 is lifted up under the action of the driving block 38, and the blowing hole 30 will be opened. With continuous movement, after the screw sleeve 20 moves to the edge, the blocking door plate 34 will be opened to the maximum position. At this time, the second conductive block 41 on the side of the push block 36 contacts the first conductive block 40, and the blower 32 on the blowing hole 30 and the air outlet 31 are both powered on. The fan 32 is running to blow the hot air in the heating box 43 into the drying box 1, and the hair dryer 32 on the air outlet 31 is running to blow out the air in the drying box 1 to achieve a hot air exchange, thereby preventing the hot air temperature in the drying box 1 from decreasing. At the same time, the water content in the air increases after drying, affecting the subsequent drying of acetaminophen. Through multiple hot air exchanges, the number of times can be controlled according to the water content of acetaminophen. When the water content of acetaminophen is high, the number of times can be increased. Similarly, when the water content is low, the number of times can be reduced. Fresh hot air can fully dry acetaminophen to ensure the drying effect of acetaminophen.

[0029] Furthermore, in the above scheme, if Figure 7 As shown, a heating component 42 is arranged on the side of the drying box 1 for heating air. The heating component 42 includes a heating box 43 fixedly mounted on the side of the drying box 1. The heating box 43 is arranged on one side of the blowing hole 30. A heating control panel 44 is arranged on the side of the heating box 43. A heating rod 45 is arranged in the heating box 43. A plurality of n-type connecting pipes 46 are connected to the upper portion of the heating box 43. The heating rod 45 in the heating box 43 continuously heats the air to ensure that the air in the heating box 43 is at a certain temperature. The heating control panel 44 is arranged to control the heating temperature of the heating rod 45. When the heating reaches the specified temperature, the heating is stopped. The normal temperature is controlled within 100°C to avoid the influence of high temperature acetaminophen. The n-type connecting pipe 46 is arranged to facilitate the entry of external air. The n-type arrangement has the air inlet located at the lower position. Since the hot air flows upward, the heated hot air is not easy to flow out. As a preferred implementation in this embodiment, Figure 1 , Figure 2 and Fig.10As shown, the material collection component 47 is arranged at a lower position on one side of the drying conveyor belt 2, and is used to collect the dried acetaminophen. The material collection component 47 includes a collection box 50 arranged in the drying box 1, and the bottom of the collection box 50 extends to the bottom of the drying box 1. The collection box 50 is located at a lower position on one side of the drying conveyor belt 2. A bottom bottom inclined plate 48 is fixedly installed inside the drying box 1, and the bottom bottom inclined plate 48 is located below the drying conveyor belt 2. A scraper 49 is fixedly installed inside the drying box 1, and the scraper 49 contacts the drying conveyor belt 2.

[0030] The acetaminophen is heated by multiple hot air exchanges. After the acetaminophen is dried, the drying conveyor belt 2 can be operated. A driving motor is provided outside to drive the drying conveyor belt 2 to rotate. After the dried acetaminophen is transported to one side, it can fall into the collecting box 50 on the material collection component 47 under the action of gravity. The scraper 49 provided can scrape off the acetaminophen adhering to the drying conveyor belt 2. The bottom bottom inclined plate 48 provided can be used to collect the acetaminophen on the drying conveyor belt 2 during the turning process or the material discharging process. The acetaminophen that falls off during the turning process or the material discharging process can be collected by the bottom bottom inclined plate 48 to avoid the problem of waste.

[0031] The working principle of the present invention is as follows: when in use, after the preparation of acetaminophen, the acetaminophen with a high water content needs to be dried, and the acetaminophen to be dried is placed in the storage box 4 on the unloading component 3, and the telescopic cylinder 16 is started to drive the storage box 4 to move downward, and the rotating disk 10 is driven to rotate under the action of the fixed rack 9, so that the driving frame 13 moves and drives the movable baffle 7 to move, and the baffle hole 8 on the movable baffle 7 is misaligned with the unloading hole 5 at the beginning until it coincides with the unloading hole 5 after the movement, and the acetaminophen in the storage box 4 will fall into the drying box 1 below, and after moving downward for a certain period of time, the telescopic cylinder 16 can return to its position, and the unloading of acetaminophen can be realized by moving the storage box 4 downward; After unloading, the acetaminophen is located on the drying conveyor belt 2. The servo motor 18 on the flipping component 17 is started to drive the screw sleeve 20 to move, thereby driving the rotating shaft 23 to move back and forth. The rotating gear 28 on the rotating shaft 23 is meshed with the mounting rack 27. During the movement, the rotating gear 28 will rotate, and the rotating shaft 23 will also rotate while moving, driving the multiple connecting blocks 24 to rotate, which will lift the drying conveyor belt 2 to form a convex shape. After the drying conveyor belt 2 is lifted, the acetaminophen at the lifted position will be loose, and the gap between them will increase, and the internal heat The air can contact the acetaminophen at the bottom to achieve a drying effect. At the same time, the acetaminophen after being lifted up will increase the frequency of movement, and the acetaminophen at the highest point will slide to both sides to achieve the flipping effect of the acetaminophen. Through flipping, the acetaminophen is fully in contact with the hot air, and the drying effect is obvious. The spreading rods 26 are located on both sides of the lifted drying conveyor belt 2. The spreading rods 26 can spread the acetaminophen to avoid the problem of uneven thickness of the acetaminophen after lifting and flipping, which affects the drying. At the same time, the acetaminophen after unloading can also be spread; As the servo motor 18 runs, the screw sleeve 20 is driven to move back and forth once. When the screw sleeve 20 returns to one side, it will drive the push block 36 to move, thereby lifting the blocking door panel 34, and the blowing hole 30 will be opened. At the same time, the second conductive block 41 contacts the first conductive block 40, and the hair dryers 32 on the blowing hole 30 and the air outlet 31 are powered on to realize a hot air exchange, so as to avoid the hot air temperature in the drying box 1 from decreasing. At the same time, the water content in the air increases after drying, which affects the subsequent drying of acetaminophen. Through multiple hot air exchanges, fresh hot air can fully dry the acetaminophen, so as to ensure the drying effect of the acetaminophen. The acetaminophen is heated through multiple hot air exchanges. After the acetaminophen is dried, the drying conveyor belt 2 can be operated, and the dried acetaminophen falls into the collection box 50 on the blanking collection component 47 for collection.

[0032] It should be noted that: The drying conveyor belt 2, servo motor 18, hair dryer 32, heating control panel 44, and heating rod 45 proposed in this application are all prior arts, and their specific structures, functions, and usages are not described in detail in this article.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drying device for producing acetaminophen, characterized in that: include: A drying box (1), wherein a drying conveyor belt (2) is arranged inside the drying box (1); A material unloading component (3), the material unloading component (3) being arranged on the drying box (1) and being used for placing acetaminophen on the drying conveyor belt (2); A turning component (17), the turning component (17) being arranged in the drying box (1) and used for turning the acetaminophen on the drying conveyor belt (2), the turning component (17) comprising a guide column (22) fixedly mounted on the drying box (1), a guide block (21) being slidably sleeved on the guide column (22), a rotating shaft (23) being rotatably mounted on one side of the guide block (21), a plurality of groups of connecting blocks (24) being fixedly mounted on the rotating shaft (23), a contact roller (25) being rotatably mounted on the connecting block (24), the contact roller (25) being in contact with the drying conveyor belt (2), a spreading rod (26) being fixedly mounted on the top of the guide block (21), the spreading rod (26) being arranged in a U-shaped structure; a heat exchange circulation component (29), the heat exchange circulation component (29) being arranged in the drying box (1) and used for replacing the gas inside the drying box (1), the heat exchange circulation component (29) comprising a blowing hole (30) and an air outlet hole (31) opened on two side walls of the drying box (1), a blower (32) being arranged in each of the blowing hole (30) and the air outlet hole (31), and a blocking door plate (34) being arranged in the blowing hole (30); A heating component (42), the heating component (42) being arranged on a side of the drying box (1) and used for heating air; A material collecting component (47) is disposed at a lower position on one side of the drying conveyor belt (2) and is used to collect the dried acetaminophen.

2. A drying device for producing acetaminophen according to claim 1, characterized in that: The material discharge component (3) comprises a storage box (4) movably mounted on the drying box body (1); a plurality of material discharge holes (5) are provided at the bottom of the storage box (4); a movable groove (6) is provided at the side of the storage box (4); a movable baffle (7) is movably mounted on the movable groove (6); a plurality of baffle holes (8) are provided at the top of the movable baffle (7); and the plurality of baffle holes (8) are arranged in a staggered manner with the material discharge holes (5).

3. A drying device for producing acetaminophen according to claim 2, characterized in that: A fixed rack (9) is fixedly mounted on the inner wall of the top side of the drying box (1); a rotating disk (10) is fixedly mounted on the side of the storage box (4); an outer gear ring (11) is fixedly mounted on the outer side of the rotating disk (10); the outer gear ring (11) is meshed with the fixed rack (9); a driving column (12) is fixedly mounted on one side of the rotating disk (10); a driving frame (13) is fixedly mounted on one side of the movable baffle (7); the driving frame (13) is movably sleeved on the driving column (12); an upper frame (14) is fixedly mounted on the top of the storage box (4); a top frame (15) is fixedly mounted on the top of the drying box (1); and a telescopic cylinder (16) is provided between the top frame (15) and the upper frame (14).

4. A drying device for producing acetaminophen according to claim 1, characterized in that: A servo motor (18) is fixedly mounted on the side of the drying box (1); an output end of the servo motor (18) is connected to a rotating screw (19); the rotating screw (19) is located inside the drying box (1); a screw sleeve (20) is threadedly sleeved on the rotating screw (19); a guide block (21) is fixedly mounted on the side of the screw sleeve (20); a rotating gear (28) is fixedly sleeved on the rotating shaft (23); a mounting rack (27) is fixedly mounted inside the drying box (1); the mounting rack (27) is meshed with the rotating gear (28).

5. A drying device for producing acetaminophen according to claim 1, characterized in that: A door panel groove (33) is formed on the inner wall of the top side of the blowing hole (30), and the blocking door panel (34) extends into the door panel groove (33). A return spring (35) is fixedly installed between the blocking door panel (34) and the top of the door panel groove (33). A pushing block (36) is slidably sleeved on the guide column (22), a rotating top rod (37) is rotatably installed on one side of the pushing block (36), and a driving block (38) is rotatably installed on one end of the rotating top rod (37), and the driving block (38) is fixedly connected to the side of the blocking door panel (34).

6. A drying device for producing acetaminophen according to claim 5, characterized in that: A fixing plate (39) is fixedly mounted on the side wall of the drying box (1), a first conductive block (40) is fixedly mounted on the side of the fixing plate (39), a second conductive block (41) is fixedly mounted on the side of the pushing block (36), and the first conductive block (40) and the second conductive block (41) are electrically connected.

7. A drying device for producing acetaminophen according to claim 1, characterized in that: The heating component (42) comprises a heating box (43) fixedly mounted on the side of the drying box body (1); the heating box (43) is arranged at a side position of the blowing hole (30); a heating control panel (44) is arranged on the side of the heating box (43); a heating rod (45) is arranged in the heating box (43); and a plurality of n-type connecting pipes (46) are connected to the upper part of the heating box (43).

8. A drying device for producing acetaminophen according to claim 1, characterized in that: The material collection component (47) comprises a collection box (50) arranged in the drying box (1), the bottom of the collection box (50) extends to the bottom of the drying box (1), the collection box (50) is located at a position below one side of the drying conveyor belt (2), a bottom bottom slanted plate (48) is fixedly installed inside the drying box (1), and the bottom bottom slanted plate (48) is located below the drying conveyor belt (2), and a scraper (49) is fixedly installed inside the drying box (1), and the scraper (49) is in contact with the drying conveyor belt (2).

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