A device for drying medicine particles after forming

Abstract

The present invention discloses a drying device after forming pharmaceutical particles, which relates to the field of pharmaceutical production technology, including a frame, a drying cylinder reduction structure connected to the longitudinal frame side wall, and the drying cylinder is adjustable and located on a transverse bottom bracket, a plurality of heat radiation rollers are evenly arranged horizontally, and the plurality of heat radiation rollers divide the inner cavity of the drying cylinder into a material cavity one and a material cavity two, and a plurality of openings are provided on the outer wall of the transmission belt. The transmission belt is in an S-shaped structure and sequentially passes through the gap between two adjacent heat radiation rollers to form a circulating feeding structure. A heat radiation roller located in the middle rotates to provide transmission power for the circulating feeding structure, and the circulating feeding structure circulates and guides the pharmaceutical particles to be dried in the material cavity one and the material cavity two. The present invention can perform circulating drying treatment on pharmaceuticals with a large amount of single particles, avoid the phenomenon of local accumulation of a large number of pharmaceutical particles, resulting in uneven distribution of pharmaceutical particles and airflow inside the drying device, thereby affecting the quality and stability of the pharmaceuticals.

Description

Technical Field

[0001] The invention relates to the technical field of medicine production, in particular to a device for drying medicine particles after they are formed. Background Art

[0002] After the drug granules are formed, the main purpose of drying is to remove moisture from the granules to achieve the specified dryness, which is convenient for subsequent packaging, storage and use. At the same time, drying also helps to improve the stability of the drug and extend its shelf life.

[0003] In the prior art, using hot dry air for drying is a common method under normal pressure. It is suitable for drying most pharmaceutical particles. At present, the drying of pharmaceutical particles after forming is uneven. Due to the differences in the shape, size, density, etc. of pharmaceutical particles, the number of pharmaceutical particles dried at a time is relatively large, at least thousands or tens of thousands. A large number of pharmaceutical particles are gathered in the drying chamber, which is prone to local accumulation, resulting in uneven distribution of pharmaceutical particles and airflow inside the drying device, causing uneven drying of pharmaceutical particles during the drying process, thereby affecting the quality and stability of the medicine. Summary of the invention

[0004] The object of the present invention is to provide a device for drying pharmaceutical particles after forming, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a device for drying pharmaceutical particles after forming, comprising:

[0006] A frame, wherein the frame comprises a longitudinal frame body and a transverse bottom bracket, wherein the longitudinal frame body and the transverse bottom bracket form an L-shaped supporting structure;

[0007] A drying cylinder, one end of which is a reduced structure and the other end is an open structure, the open structure is detachably provided with a cover, the reduced structure of the drying cylinder is connected to the side wall of the longitudinal frame, and the drying cylinder is adjustable and seated on the transverse bottom bracket;

[0008] A plurality of heat radiation rollers are arranged horizontally and evenly at intervals, and the plurality of heat radiation rollers divide the inner cavity of the drying cylinder into a material cavity one and a material cavity two;

[0009] A transmission belt, wherein the transmission belt is butt-jointed at both ends, and a plurality of openings are provided on the outer wall of the transmission belt, wherein the space in the openings is used for temporarily storing the drug particles to be dried;

[0010] There are gaps between two adjacent heat radiation rollers and between the two heat radiation rollers on the outermost sides and the inner wall of the drying cylinder. The transmission belt is in an S-shaped structure and passes through the gaps between two adjacent heat radiation rollers in sequence to form a circulating feeding structure. The heat radiation roller located in the middle rotates to provide transmission power for the circulating feeding structure. The circulating feeding structure circulates and guides the drug particles to be dried in material chamber one and material chamber two.

[0011] In a further embodiment, the heat radiation roller has closed structures at both axial ends, the end of the heat radiation roller is rotatably connected to one end of the shrinking structure in the drying cylinder, and the longitudinal frame has a built-in motor that provides power to a heat radiation roller located in the middle position.

[0012] In a further embodiment, a heat radiation roller located in the middle position is provided with extrusion protrusions in a ring-shaped structure at both axial ends.

[0013] In a further embodiment, the thickness of the transmission belt is equal to the width of the gap, the relative side walls inside the opening of the transmission belt and the relative side walls of two adjacent heat radiation rollers constitute a temporary medicine storage space one, and the relative side walls inside the opening of the transmission belt, the edgemost heat radiation roller and the inner wall of the drying cylinder constitute a temporary medicine storage space two.

[0014] In a further embodiment, three heat radiation rollers are provided, and the transmission belt passes through the upper wall of a heat radiation roller on the side, passes through the gap, passes through the bottom wall of a heat radiation roller in the middle, and then passes through the upper wall of the heat radiation roller on the other side, and the transmission belt passes through the gaps between the two heat radiation rollers on the side and the inner wall of the drying cylinder respectively;

[0015] One end of the drying cylinder located at the reduction structure is rotatably connected with two I-shaped rollers, the I-shaped rollers are located in the second material chamber, and the I-shaped rollers are wound around the inner wall of the transmission belt.

[0016] In a further embodiment, an arc-shaped bottom plate is provided under a heat radiation roller located in the middle position, and the arc-shaped bottom plate is fixedly connected to one end of the shrinking structure in the drying cylinder, and the arc-shaped bottom plate is fitted with a transmission belt on the bottom wall of a heat radiation roller passing through the middle position, and the two ends of the arc-shaped bottom plate are respectively slidably fitted with the relative side walls of the two side heat radiation rollers.

[0017] In a further embodiment, it also includes a gear that rotates and is embedded in the upper end surface of the transverse bottom bracket, and the outer wall of the drying cylinder is provided with a circle of gear blocks, and the gear matches the tooth gap between two adjacent gear blocks;

[0018] At least two support blocks are fixed on the upper end surface of the transverse bottom bracket, and I-shaped support wheels for rolling support of the drying cylinder are rotatably provided on both sides of the upper end surfaces of the support blocks.

[0019] In a further embodiment, a plurality of material guide plates are provided on the inner radial side wall of the drying cylinder, and the plurality of material guide plates are equally divided into two groups, two material guide plates form one group, and the two groups of material guide plates are respectively located in material cavity one and material cavity two, and the upper and lower side walls of the two material guide plates are provided with inclined surfaces, and a material guide port is provided between the ends of the two material guide plates.

[0020] In a further embodiment, a heating lamp with a cylindrical structure is fixed to the inner axial side wall of the heat radiation drum;

[0021] A plurality of arc-shaped reflection plates arranged circumferentially around the heating lamp are fixed on the axial side wall of the heat radiation drum.

[0022] In a further embodiment, a plurality of radiation holes are provided on the radial side wall of the heat radiation roller, and expansion structures are provided at both end openings of the radiation holes.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention is a drying device for pharmaceutical particles after forming, which can perform cyclic drying treatment on pharmaceuticals with a large amount of particles in a single batch, thereby avoiding the accumulation of a large number of pharmaceutical particles in a drying chamber, causing local accumulation, and resulting in uneven distribution of pharmaceutical particles and air flow inside the drying device, thereby solving the problem of uneven drying of pharmaceutical particles during the drying process, thereby affecting the quality and stability of the pharmaceuticals. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the decomposition of the drying cylinder of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the heat radiation roller of the present invention;

[0028] Figure 4 It is a schematic diagram of the separation of the transmission belt and the I-shaped roller of the present invention;

[0029] Figure 5 A partial cross-sectional view of the heat radiation roller of the present invention;

[0030] Figure 6 A side view of the heat radiation roller of the present invention;

[0031] Figure 7 A partial cross-sectional view showing a further improvement of the heat radiation roller of the present invention;

[0032] Figure 8 A further improved side view of the heat radiation roller of the present invention;

[0033] Fig. 9This is a schematic diagram of the assembly of the drying cylinder and the gear of the present invention;

[0034] Fig.10 It is a cross-sectional view of the drying cylinder structure of the present invention;

[0035] Fig.11 It is a cross-sectional view of the drying cylinder, the transmission belt and the plurality of heat radiation rollers of the present invention;

[0036] Fig.12 It is a cross-sectional view of the drying cylinder, the transmission belt and the plurality of heat radiation rollers of the present invention after being rotated and adjusted by 180°.

[0037] In the figure: 1. longitudinal frame; 11. transverse base; 12. support block; 13. I-shaped support wheel; 2. drying cylinder; 21. gear block; 22. sealing cover; 23. material guide plate; 24. material chamber 1; 25. material chamber 2; 3. gear; 4. heat radiation roller; 41. extrusion convex block; 42. baking lamp; 43. arc-shaped reflection plate; 44. radiation hole; 5. transmission belt; 51. opening; 6. I-shaped roller; 7. arc-shaped bottom plate. DETAILED DESCRIPTION

[0038] The following will be described clearly and completely in conjunction with 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.

[0039] Embodiment, this embodiment provides a device for drying medicine particles after forming, such as Figure 1 As shown, the machine frame includes a longitudinal frame 1 and a transverse bottom bracket 11, and the longitudinal frame 1 and the transverse bottom bracket 11 form an L-shaped support structure. It also includes a drying cylinder 2, one end of the drying cylinder 2 is a reduced structure, and the other end is an open structure, and the open structure is detachably provided with a cover 22. The cover 22 is connected to the open structure in a threaded connection manner, and the lower cover 22 is rotated to throw the drug particles to be dried from the open structure into the drying cylinder 2, and then the cover 22 is screwed on to seal the drying cylinder 2, providing a closed chamber as a drying place.

[0040] The shrink structure of the drying cylinder 2 is connected to the side wall of the longitudinal frame 1, and the drying cylinder 2 is adjustable and seated on the transverse base 11. Specifically, Figure 1 and Fig. 9As shown, it also includes a gear 3 that is embedded in the upper end face of the horizontal base 11, and a circle of gear blocks 21 are provided on the outer wall of the drying cylinder 2. The gear 3 matches the tooth gap between the two adjacent gear blocks 21. A motor 2 is built into the longitudinal frame 1 to provide power for the gear 3. The motor 2 can drive the gear 3 to rotate forward and reverse, thereby using the gear block 21 to drive the drying cylinder 2 to rotate forward and reverse. At least two support blocks 12 are fixed on the upper end face of the horizontal base 11. Both sides of the upper end face of the support block 12 are rotatably provided with I-shaped support wheels 13 for rolling support of the drying cylinder 2. At least 4 I-shaped support wheels 13 are used to roll and support the drying cylinder 2 to avoid excessive force on one end of the shrinking structure of the drying cylinder 2. It is particularly noted here that the single rotation amplitude of the drying cylinder 2 is 180°, that is, the drying cylinder 2 rotates 180°, pauses for 1-3 minutes, and then flips 180° in the opposite direction again, and pauses for 1-3 minutes, which is a cycle of rotation.

[0041] It also includes a plurality of heat radiation rollers 4, such as Figure 1 , Figure 2 As shown, multiple heat radiation rollers 4 are evenly spaced horizontally, and the axial ends of the heat radiation rollers 4 are closed structures. Here, multiple heat radiation rollers 4 divide the inner cavity of the drying cylinder 2 into Fig.10 The material chamber 1 24 and the material chamber 2 25 are shown. It also includes a transmission belt 5, which is butt-jointed at both ends, and a plurality of openings 51 are provided on the outer wall of the transmission belt 5, and the space inside the openings 51 is used to temporarily store the medicine particles to be dried. There are gaps between two adjacent heat radiation rollers 4 and between the two heat radiation rollers 4 on the most side and the inner wall of the drying cylinder 2. The transmission belt 5 is in an S-shaped structure and passes through the gaps between the two adjacent heat radiation rollers 4 in sequence, as shown in FIG. Figure 5 As shown, a columnar heating lamp 42 is fixed to the axial side wall of the heat radiation roller 4. The heat radiation roller 4 located in the middle position rolls and can drive the transmission belt 5 to transmit synchronously. In order to avoid slipping, the heat radiation roller 4 located in the middle position is provided with annular extrusion protrusions 41 at both ends of the axial direction, such as Figure 3 As shown, the extrusion protrusion 41 is used to press on the surface wall of the transmission belt 5 to increase the friction force.

[0042] The transmission belt 5 is in an S-shaped structure and passes through the gap between two adjacent heat radiation rollers 4 in sequence to form a circulating feeding structure. The thickness of the transmission belt 5 is equal to the width of the gap. When the outer wall of the transmission belt 5 passes through the outer walls of the two side heat radiation rollers 4, it slides and fits with the inner wall of the drying cylinder 2. Fig.10As shown, L=L1=L2. As long as the transmission belt 5 is located in the gap, the drug particles will not fall from the gap, that is, they will not fall from the material chamber 1 24 to the material chamber 2 25 or from the material chamber 2 25 to the material chamber 1 24. Specifically, there are three heat radiation rollers 4. The transmission belt 5 passes through the upper wall of a heat radiation roller 4 on the side, passes through the gap, passes through the bottom wall of a heat radiation roller 4 in the middle, and then passes through the upper wall of the heat radiation roller 4 on the other side. The transmission belt 5 passes through the gaps between the two heat radiation rollers 4 on the side and the inner wall of the drying cylinder 2 respectively; two I-shaped rollers 6 are rotatably connected to one end of the shrinking structure in the drying cylinder 2, as shown in FIG. Figure 4 As shown, the I-shaped roller 6 is located in the second material chamber 25, and the I-shaped roller 6 is connected with the inner wall of the transmission belt 5. The transmission belt 5 is tensioned by two I-shaped rollers 6 to prevent the transmission belt 5 from slipping when the heat radiation roller 4 rolls. The end of the heat radiation roller 4 is rotatably connected to one end of the shrinking structure in the drying cylinder 2, and the longitudinal frame 1 is built with a motor 1 that provides power for a heat radiation roller 4 located in the middle position. The motor 1 can drive the heat radiation roller 4 located in the middle position to rotate, and the rotating heat radiation roller 4 can drive the transmission belt 5 to pass the transmission power, thereby providing transmission power for the circulating feeding structure.

[0043] like Fig.10 As shown, the material chamber 1 24 is located on the upper side of the drying cylinder 2, and the material chamber 2 25 is located on the lower side of the drying cylinder 2. When drying, the cover 22 is opened, and the medicine particles to be dried are thrown into the drying cylinder 2 from the opening structure, and the cover 22 is closed. At this time, the medicine particles are located in the material chamber 2 25 in the drying cylinder 2. At this time, the motor 2 needs to be used to provide power to rotate the drying cylinder 2 180 degrees, that is, the material chamber 2 25 is swapped with the material chamber 1 24, the material chamber 2 25 is located on the upper side, and the material chamber 1 24 is located on the lower side. The medicine particles previously located in the material chamber 2 25 will be moved along the drying cylinder 2. Fig.12 The direction indicated by the arrow Q falls on the transmission belt 5. Then the motor 1 provides the rotational power for the heat radiation roller 4 located in the middle position, thereby driving the transmission belt 5 to drive synchronously. The multiple openings 51 of the transmission belt 5 will be transmitted through each gap in sequence. The relative side walls in the opening 51 of the transmission belt 5 and the relative side walls of the two adjacent heat radiation rollers 4 form a temporary medicine storage space 1. The relative side walls in the opening 51 of the transmission belt 5, the heat radiation roller 4 on the edge and the inner wall of the drying cylinder 2 form a temporary medicine storage space 2. The temporary medicine storage space 1 and the temporary medicine storage space 2 can temporarily carry a small batch of medicine particles to be transmitted through the heat radiation roller 4. Since the heat radiation roller 4 is equipped with a heating lamp 42, a large amount of heat will be generated after the heating lamp 42 is turned on. The heat radiation roller 4 is used as a heat conduction medium to dry each batch of medicine particles passing through the gap. Finally, the opening 51 of the transmission belt 5 carrying the medicine particles will pass under the temporary medicine storage space 2 on any side wall, and will fall from the opening 51 into the material chamber 1 24 to achieve a one-time drying process.

[0044] Then, the drying cylinder 2 is rotated in the reverse direction, and the material chamber 25 is switched with the material chamber 1 24 again, the material chamber 1 24 is located at the upper side of the drying cylinder 2, and the material chamber 2 25 is located at the lower side of the drying cylinder 2. Fig.11 As shown, the drug particles that have been dried once will fall on the transmission belt 5 along the direction indicated by the arrow K, and will be synchronously driven with the transmission belt 5. The opening 51 of the transmission belt 5 will carry the drug particles and pass under the temporary drug storage space 2 on any side wall, and then will fall from the opening 51 into the material chamber 1 24 to achieve secondary drying. The above process is repeated until the drug particles are completely dried. The above drying process achieves the purpose of cyclic drying and improves drying efficiency.

[0045] The transmission belt 5 drives the drug particles in batches to pass through each temporary drug storage space 1 or temporary drug storage space 2 in sequence, so as to realize small batch drying, prevent a large number of drug particles from gathering in the drying chamber and causing local accumulation, resulting in uneven distribution of drug particles and air flow inside the drying device, and solve the problem of uneven drying of drug particles during the drying process, thereby affecting the quality and stability of the drugs.

[0046] In order to prevent the medicine particles carried in the opening 51 of the transmission belt 5 from falling when being conveyed under the heat radiation roller 4 at the middle position, an arc-shaped bottom plate 7 is provided under a heat radiation roller 4 at the middle position, and an arc-shaped bottom plate 7 is fixedly connected to one end of the shrinking structure in the drying cylinder 2, and the arc-shaped bottom plate 7 is fitted with the transmission belt 5 passing through the bottom wall of a heat radiation roller 4 at the middle position, and the two ends of the arc-shaped bottom plate 7 are respectively slidably fitted with the opposite side walls of the two side heat radiation rollers 4, such as Fig.10 As shown, the arc-shaped bottom plate 7 is used to cover the bottom of the transmission belt 5 that passes through the heat radiation roller 4 in the middle position, ensuring that the medicine in the opening 51 is stably stored and adheres to the surface wall of the heat radiation roller 4 for heat exchange, thereby achieving drying treatment.

[0047] In this embodiment, further, Fig.10 As shown, a plurality of guide plates 23 are provided on the inner radial side wall of the drying cylinder 2, and the plurality of guide plates 23 are equally divided into two groups, two guide plates 23 form one group, and the two groups of guide plates 23 are respectively located in the material cavity 1 24 and the material cavity 2 25. The upper and lower side walls of the two guide plates 23 are both provided with inclined surfaces, and a material guide port is provided between the ends of the two guide plates 23. By adding guide plates 23 in both the material cavity 1 24 and the material cavity 2 25, the drug particles can fall through the material guide port and be discharged.

[0048] In addition, in order to ensure that the heat is concentrated on the side wall of the heat radiation roller 4 as much as possible, a plurality of arc-shaped reflection plates 43 arranged circumferentially around the heating lamp 42 are fixed to the axial side wall of the heat radiation roller 4. Figure 5 and Figure 6As shown, the heat generated by the heat radiation roller 4 will be as follows Figure 6 The direction indicated by the arrow W radiates in all directions and radiates to the surface wall of the arc reflector 43. Here, the surface wall of the arc reflector 43 is provided with an aluminum foil layer, which can transfer the heat generated by the heat radiation roller 4 along the direction indicated by the arrow W. Figure 6 The direction indicated by the arrow T is reflected onto the side wall of the heat radiation drum 4, thereby improving the heat exchange efficiency of the drug particles when passing through the outer wall of the heat radiation drum 4, thereby improving the drying efficiency.

[0049] A plurality of radiation holes 44 may be provided on the radial side wall of the heat radiation roller 4, and both ends of the radiation holes 44 are provided with expansion structures. The heat generated by the heating lamp 42 will flow with the air and enter the drying cylinder 2 through the plurality of radiation holes 44. In this way, the temperature inside the heat radiation roller 4 is high, while the temperature inside the drying cylinder 2 is relatively low. The purpose of this arrangement is that the drug particles are subjected to low-temperature drying treatment in the drying cylinder 2, while the drug particles passing through the heat radiation roller 4 are subjected to heating and drying treatment. In addition, the structure of the radiation holes 44 is as follows: Figure 7 and Figure 8 As shown, by setting the enlarged structure, the radiation hole 44 is prevented from being too deep, which affects the diffusion of heat. However, it should be noted that the inner diameter of the radiation hole 44 should be smaller than the particle size of the drug particles to be dried to prevent drug particles from entering the heat radiation roller 4 through the radiation hole 44.

[0050] 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 device for drying pharmaceutical particles after forming, characterized in that: include: A frame, the frame comprising a longitudinal frame body (1) and a transverse base support (11), the longitudinal frame body (1) and the transverse base support (11) forming an L-shaped support structure; A drying cylinder (2), wherein one end of the drying cylinder (2) is a reduced structure and the other end is an open structure, the open structure is detachably provided with a cover (22), the reduced structure of the drying cylinder (2) is connected to the side wall of the longitudinal frame (1), and the drying cylinder (2) is adjustably seated on the transverse base (11); A plurality of heat radiation rollers (4), the plurality of heat radiation rollers (4) being evenly spaced and arranged horizontally, and the plurality of heat radiation rollers (4) dividing the inner cavity of the drying cylinder (2) into a first material cavity (24) and a second material cavity (25); A transmission belt (5), wherein the transmission belt (5) is butt-jointed at both ends, and a plurality of openings (51) are provided on an outer wall of the transmission belt (5), wherein the space within the openings (51) is used for temporarily storing the drug particles to be dried; There are gaps between two adjacent heat radiation rollers (4) and between the two heat radiation rollers (4) on the outermost sides and the inner wall of the drying cylinder (2); the transmission belt (5) is in an S-shaped structure and passes through the gaps between the two adjacent heat radiation rollers (4) in sequence to form a circulating feeding structure, and further comprises a gear (3) that is rotatably embedded in the upper end surface of the transverse base (11); a circle of gear blocks (21) are provided on the outer wall of the drying cylinder (2); the gear (3) and the gear gaps between the two adjacent gear blocks (21) match; at least two support members are fixed to the upper end surface of the transverse base (11); A support block (12) is provided on both sides of the upper end surface of the support block (12) with I-shaped support wheels (13) for rolling support of the drying cylinder (2). A second motor for providing power to the gear (3) is built into the longitudinal frame (1). The second motor can drive the gear (3) to rotate forward and reverse, thereby using the gear block (21) to drive the drying cylinder (2) to rotate forward and reverse. A heat radiation roller (4) located in the middle rotates to provide transmission power for the circulating feeding structure. The circulating feeding structure circulates and guides the drug particles to be dried in the first material chamber (24) and the second material chamber (25).

2. The device for drying pharmaceutical particles after forming according to claim 1, characterized in that: The heat radiation roller (4) has closed structures at both axial ends, the end of the heat radiation roller (4) is rotatably connected to one end of the shrinking structure in the drying cylinder (2), and the longitudinal frame (1) is equipped with a motor that provides power to a heat radiation roller (4) located in the middle.

3. The device for drying pharmaceutical particles after forming according to claim 2, characterized in that: A heat radiation roller (4) located in the middle is provided with extrusion protrusions (41) in a ring-shaped structure at both axial ends.

4. The device for drying pharmaceutical particles after forming according to claim 2, characterized in that: The thickness of the transmission belt (5) is equal to the width of the gap; the opposite side walls inside the opening (51) of the transmission belt (5) and the opposite side walls between two adjacent heat radiation rollers (4) form a temporary medicine storage space 1; the opposite side walls inside the opening (51) of the transmission belt (5), the outermost heat radiation roller (4) and the inner wall of the drying cylinder (2) form a temporary medicine storage space 2.

5. The device for drying pharmaceutical particles after forming according to claim 1, characterized in that: The heat radiation rollers (4) are provided with three, the transmission belt (5) passes through the upper wall of a heat radiation roller (4) on the side, passes through the gap, passes through the bottom wall of a heat radiation roller (4) in the middle, and then passes through the upper wall of another heat radiation roller (4) on the side, and the transmission belt (5) passes through the gaps between the two heat radiation rollers (4) on the side and the inner wall of the drying cylinder (2) respectively; Two I-shaped rollers (6) are rotatably connected to one end of the reduction structure in the drying cylinder (2); the I-shaped rollers (6) are located in the second material chamber (25); and the I-shaped rollers (6) are wound around the inner wall of the transmission belt (5).

6. The device for drying pharmaceutical particles after forming according to claim 5, characterized in that: An arc-shaped bottom plate (7) is provided below a heat radiation roller (4) located in the middle position, and the arc-shaped bottom plate (7) is fixedly connected to one end of the shrinking structure in the drying cylinder (2), and the arc-shaped bottom plate (7) is in contact with a transmission belt (5) passing through the bottom wall of a heat radiation roller (4) in the middle position, and the two ends of the arc-shaped bottom plate (7) are respectively slidably in contact with the opposite side walls of the two side heat radiation rollers (4).

7. The device for drying pharmaceutical particles after forming according to claim 1, characterized in that: The inner radial side wall of the drying cylinder (2) is provided with a plurality of material guide plates (23), the plurality of material guide plates (23) are equally divided into two groups, two material guide plates (23) form one group, the two groups of material guide plates (23) are respectively located in material cavity 1 (24) and material cavity 2 (25), upper and lower side walls of the two material guide plates (23) are both provided with inclined surfaces, and a material guide opening is provided between the ends of the two material guide plates (23).

8. The device for drying pharmaceutical particles after forming according to claim 7, characterized in that: A heating lamp (42) with a cylindrical structure is fixed to the inner axial side wall of the heat radiation roller (4); A plurality of arc-shaped reflection plates (43) arranged circumferentially around the heating lamp (42) are fixed to the axial side wall of the heat radiation drum (4).

9. The device for drying pharmaceutical particles after forming according to claim 8, characterized in that: The radial side wall of the heat radiation roller (4) is provided with a plurality of radiation holes (44), and both end openings of the radiation holes (44) are provided with expansion structures.

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