A wet granulation apparatus

Abstract

The utility model discloses a kind of wet granulation devices, comprising: rotating assembly includes rotary drive module and rotating plate, rotating plate is connected in rotary drive module, rotating plate is equipped with several let go of hole, positioning long hole, the bottom of rotating plate is equipped with rotating seat, rotating seat rotationally connected has warped plate, the top of one end of warped plate is equipped with lock block, the bottom of the other end of warped plate is equipped with counterweight block;Material bucket is located on rotating plate, the bottom of material bucket is equipped with several insert column, the bottom of each insert column is equipped with the positioning block matching let go of hole, lock block is located in the side of positioning block away from positioning long hole;Stirring assembly, including lifting drive module, lifting plate, stirring drive module and stirring paddle, stirring drive module is connected in lifting plate, stirring paddle is connected in stirring drive module, the bottom of lifting plate is equipped with bucket cover, the bottom of bucket cover is equipped with spray head.The utility model can realize automatic locking, installation operation is convenient, line replacement efficiency is high, stirring granulation is uniform, and granule forming quality is high.

Description

Technical Field

[0001] This utility model relates to the field of granulation processing, and in particular to a wet granulation apparatus. Background Technology

[0002] Granulation is the process of shaping materials such as powders, melts, and aqueous solutions into granules of a specific shape and size. Wet granulation is a common process in the pharmaceutical, food, and chemical industries, used to mix raw material powders with binders and form them into granules.

[0003] Wet granulation equipment typically includes a feed tank and a mixing paddle. After the raw material powder and binder are added to the feed tank according to the formula, the raw material powder and binder in the feed tank are stirred and granulated by the mixing paddle. In traditional technology, the feed tank is fixed to the machine frame. After the stirring and granulation are completed, the machine needs to be stopped to collect the product particles in the feed tank. The line change operation is cumbersome, the line change time is long, and the granulation efficiency is low. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a wet granulation device with high line-changing efficiency, high granulation efficiency, and high uniformity of granulation.

[0005] A wet granulation apparatus according to an embodiment of the present invention includes:

[0006] The rotating assembly includes a rotating drive module and a rotating plate. The rotating plate is connected to the rotating drive module. The rotating plate has several clearance holes. Each clearance hole has a positioning elongated hole connected to one side. The bottom of the rotating plate has a rotating seat. The rotating seat is rotatably connected to a rocker. One end of the rocker has a locking block at the top and the other end of the rocker has a counterweight block at the bottom, so that the locking block tends to move closer to the clearance hole.

[0007] The material barrel is set on the rotating plate. The bottom of the material barrel is provided with several pins that match the corresponding positioning holes. The bottom of each pin is provided with a positioning block that matches the clearance hole. The positioning block abuts against the bottom surface of the rotating plate. The locking block is located on the side of the positioning block away from the positioning hole.

[0008] The mixing assembly includes a lifting drive module, a lifting plate, a mixing drive module, and a mixing paddle. The lifting plate is connected to the lifting drive module, the mixing drive module is connected to the lifting plate, and the mixing paddle is connected to the mixing drive module. The bottom of the lifting plate is provided with a bucket cover located above the material bucket, and the bottom of the bucket cover is provided with a spray head.

[0009] In this embodiment, the bottom of the rotating plate is provided with a guide pad surrounding the edge of the positioning hole, and the side of the guide pad near the clearance hole is provided with a guide slope, which is inclined to the rotating plate.

[0010] In this embodiment, the rotation axis of the stirring paddle is perpendicular to the horizontal plane, and the rotation axis of the material barrel forms an acute angle with the horizontal plane.

[0011] In this embodiment, the driving direction of the lifting drive module is parallel to the rotation axis of the barrel, and the barrel cover is perpendicular to the rotation axis of the barrel.

[0012] In this embodiment, an auxiliary granulation knife is provided at the bottom of the bucket lid. The auxiliary granulation knife is parallel to the rotation axis of the bucket and is located on one side of the stirring paddle.

[0013] In this embodiment, the auxiliary granulator blade is provided with branch blades.

[0014] In this embodiment, at least three limiting wheels are rotatably connected to the bottom of the lifting plate. All the limiting wheels surround the barrel lid, and the rotation axis of the limiting wheels is parallel to the rotation axis of the barrel.

[0015] In this embodiment, the bucket lid is provided with an observation window.

[0016] The embodiments of this utility model have at least the following beneficial effects:

[0017] The detachable hopper facilitates line changes in the mixing and granulation process, effectively saving downtime and improving overall mixing and granulation efficiency. A rotating rocker arm, in conjunction with a counterweight, drives a locking block for automatic locking. When the positioning block enters the clearance hole, the locking block, pushed downwards by the positioning block, automatically repositions itself. Rotating the hopper drives the positioning block to the bottom of the positioning hole, where the counterweight's weight drives the rocker arm to rotate, causing the locking block to enter the clearance hole and lock onto one side of the positioning block. This automatic locking mechanism ensures the hopper is easy to install and operate, resulting in high line change efficiency and significantly improved overall granulation production efficiency. Furthermore, the stable locking block effectively prevents the material bucket from loosening or shifting during rotation, thus improving the stability of the bucket's operation and ensuring reliable mixing and granulation. This also effectively reduces vibration interference, thereby improving the uniformity of granulation. The rotating drive module drives the material bucket to rotate, and the mixing drive module drives the mixing paddle to rotate, which not only effectively improves the efficiency and uniformity of mixing and granulation but also results in a high yield of qualified granules. Combined with the spray head, the binder is gradually added during the mixing process, ensuring thorough mixing between the raw material powder and the binder, resulting in reliable granulation and high-quality granules. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a three-dimensional structural diagram of the wet granulation apparatus according to an embodiment of the present invention;

[0020] Figure 2 This is a three-dimensional structural schematic diagram of the wet granulation apparatus according to an embodiment of the present utility model from another perspective.

[0021] Figure 3 This is a top view of the wet granulation apparatus according to an embodiment of the present invention;

[0022] Figure 4 For along Figure 3 A schematic diagram of the cross-sectional structure of line A-A';

[0023] Figure 5 This is an exploded structural diagram of a partial rotating component and a material barrel in a wet granulation apparatus according to an embodiment of the present invention.

[0024] Figure 6 This is an exploded structural diagram of a partial rotating component and a material bucket in a wet granulation apparatus according to an embodiment of the present invention, viewed from another perspective.

[0025] Figure 7 for Figure 6 A magnified structural diagram of B in the diagram.

[0026] Figure label:

[0027] Rotating component 100, rotating drive module 110, rotating plate 120, clearance hole 121, positioning elongated hole 122, rotating base 130, rocker 140, locking block 141, counterweight block 142, guide pad 150, guide inclined surface 151;

[0028] Material bucket 200, insert post 210, positioning block 220;

[0029] Mixing assembly 300, lifting drive module 310, lifting plate 320, mixing drive module 330, mixing paddle 340, bucket lid 350, observation window 351, spray head 360, auxiliary granulation knife 370, branch plate 371, limit wheel 380. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, if the wire sleeve or bracket is mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] Granulation is the process of shaping materials such as powders, melts, and aqueous solutions into granules of a specific shape and size. Wet granulation is a common process in pharmaceuticals, food, and chemicals, used to mix raw material powders with binders and form granules. Wet granulation equipment typically includes a hopper and a stirring paddle. After the raw material powder and binder are added to the hopper according to the specified ratio, the stirring paddle agitates the powder and binder in the hopper to granulate the mixture.

[0035] In traditional technology, the material bucket is fixed to the machine frame. After the mixing and granulation are completed, the machine needs to be stopped and the product particles in the bucket need to be collected manually. The raw material powder and binder also need to be added again according to the ratio. The line change operation is cumbersome and time-consuming, the granulation efficiency is low, the mixing effect of the mixing paddle is singular, the uniformity of the mixing and granulation is poor, the coordination between the various structures is poor, the function is single, and the granulation quality is affected.

[0036] The following is for reference only. Figure 1 To be continued Figure 7 The wet granulation apparatus of this utility model is described in the embodiment of having high line changing efficiency, high granulation efficiency, and high uniformity of granulation.

[0037] Reference Figures 1 to 7 A wet granulation apparatus according to an embodiment of the present invention includes:

[0038] The rotating assembly 100 includes a rotating drive module 110 and a rotating plate 120. The rotating plate 120 is connected to the rotating drive module 110. The rotating plate 120 has a plurality of circumferentially distributed clearance holes 121. On the plane of the rotating plate 120, a positioning elongated hole 122 is connected to one side of each clearance hole 121. The diameter of the clearance hole 121 is larger than the width of the positioning elongated hole 122. A rotating base 130 is fixedly provided at the bottom of the rotating plate 120. A rocker arm 140 is rotatably connected to the rotating base 130. The middle part of the rocker 140 is rotatably connected to the rotating base 130, and the rotation axis between the rocker 140 and the rotating base 130 is perpendicular to the rotating plate 120. The rotating plate 120 is perpendicular to the drive output shaft of the rotation drive module 110. A locking block 141 is provided at the top of one end of the rocker 140, and a counterweight block 142 is provided at the bottom of the other end of the rocker 140. Under the counterweight action of the counterweight block 142, without any other external force, the counterweight block 142 descends, so that the locking block 141 forms a tendency to move upward toward the clearance hole 121.

[0039] A material bin 200 is mounted on a rotating plate 120. The bottom of the material bin 200 has several insertion posts 210 that match corresponding positioning holes 122. Each insertion post 210 has a positioning block 220 at its bottom that matches a clearance hole 121. The clearance hole 121 and the positioning block 220 have the same shape and size, allowing the positioning block 220 to pass through. Preferably, both the positioning block 220 and the insertion post 210 are cylindrical, and the diameter of the positioning block 220 is larger than that of the insertion post 210. The diameter of the insertion post 210 is equal to the width of the positioning hole 122. The diameter of the positioning block 220 is equal to the diameter of the clearance hole 121. When the material barrel 200 is installed on the rotating plate 120, the insertion post 210 passes through the positioning elongated hole 122, the positioning block 220 abuts against the bottom surface of the rotating plate 120, and the locking block 141 is located on the side of the positioning block 220 away from the positioning elongated hole 122 to limit the position of the insertion post 210 in the positioning elongated hole 122. By cooperating with the positioning block 220, the relative position of the material barrel 200 and the rotating plate 120 can be effectively limited, and an automatic locking and firm positioning structure can be formed.

[0040] The mixing assembly 300 includes a lifting drive module 310, a lifting plate 320, a mixing drive module 330, and a mixing paddle 340. The lifting plate 320 is connected to the lifting drive module 310, the mixing drive module 330 is connected to the lifting plate 320, and the mixing paddle 340 is connected to the mixing drive module 330. A lid 350 is located at the bottom of the lifting plate 320 above the material tank 200. The mixing paddle 340 is also rotatably connected to the lid 350. The lid 350 is used to cover the opening of the material tank 200, and a spray head 360 is located at the bottom of the lid 350. The top of the spray head 360 is connected to a liquid supply tank via a pipeline. The liquid supply tank is used to store adhesives and other agents used to assist in the formation of granules. The liquid supply tank is connected to the lifting plate 320. When the bucket lid 350 is placed over the opening of the material bucket 200, both the stirring paddle 340 and the spray head 360 are inserted into the material bucket 200. The spray head 360 is used to spray adhesives and other agents onto the raw material powder in the material bucket 200 so that the raw material powder and adhesive bond together to form granules. The stirring paddle 340 is used to fully mix the raw material powder and adhesive so that the bonding effect of granules is uniform and reliable.

[0041] The following will take the material barrel 200 as the reference, with the rotation axis of the material barrel 200 extending in the axial direction and the diameter of the material barrel 200 extending in the radial direction. In application, the positioning block 220 and the insert post 210 are aligned with the clearance hole 121 and inserted axially. During insertion, the positioning block 220 overcomes the force transmitted by the counterweight block 142 through the rocker arm 140, pushing the locking block 141 away from the clearance hole 121. The rocker arm 140 rotates around the rotating base 130, and the counterweight block 142 rises against gravity. The material bucket 200 is rotated, and the insert post 210 enters the positioning elongated hole 122. The positioning block 220 leaves the area where the clearance hole 121 is located and reaches the side of the positioning elongated hole 122 away from the material bucket 200. The positioning block 220 abuts against the bottom surface of the rotating plate 120. The positioning block 220 is released from limiting the locking block 141. The counterweight block 142 descends under the drive of gravity. The rocker arm 140 rotates around the rotating base 130, causing the locking block 141 to rise and re-enter the clearance hole 121. At this time, the locking block 141 is located in the position of the positioning block 220. The side of the positioning block 220 facing away from the positioning hole 122 can effectively limit the position of the positioning block 220, preventing the positioning block 220 and the insert 210 from entering the clearance hole 121, and the locking effect is firm and reliable. After the installation of the material bucket 200 is completed, the lifting drive module 310 drives the lifting plate 320 to lower so that the bucket cover 350 covers the mouth of the material bucket 200, and the stirring paddle 340 extends into the material bucket 200. The rotation drive module 110 drives the stirring paddle 340 to rotate, and the spray head 360 sprays adhesive into the material bucket 200, thereby realizing the stirring and granulation process. After granulation is completed, the lifting drive module 310 drives the lifting plate 320 to rise and reset, and the stirring paddle 340 leaves the material bucket 200 and rises. When removing the material bucket 200, push the counterweight block 142 to rise so that the locking block 141 leaves the clearance hole 121 to unlock it. Rotating the material bucket 200 can then remove it.

[0042] The detachable material hopper 200 facilitates line changes in the mixing and granulation process, effectively saving downtime and improving overall mixing and granulation efficiency. A rotating rocker 140, in conjunction with a counterweight 142, drives a locking block 141 for automatic locking. When the positioning block 220 enters the clearance hole 121, the locking block 141, pushed down by the positioning block 220, automatically clears its position. Rotating the material hopper 200 drives the positioning block 220 to the bottom of the positioning hole 122. The weight of the counterweight 142 then drives the rocker 140 to rotate, causing the locking block 141 to enter the clearance hole 121 and lock onto one side of the positioning block 220. The locking block 141 automatically locks the positioning block 220. The material hopper 200 is easy to install and operate, offers high line change efficiency, and effectively improves overall granulation production efficiency. The locking block 141, with its high efficiency and stable position, effectively prevents the material barrel 200 from loosening or shifting during rotation, thus improving the stability of the material barrel 200's operation. This ensures reliable mixing and granulation, effectively reducing vibration interference and improving the uniformity of granulation. The material barrel 200 is driven to rotate by the rotation drive module 110, and the stirring paddle 340 is driven to rotate by the stirring drive module 330. Depending on the requirements, both can be driven to rotate at different speeds and directions, which not only effectively improves the efficiency of mixing and granulation but also improves the uniformity of mixing and granulation, thereby effectively increasing the yield of qualified granules. In conjunction with the spray head 360, the binder is gradually added during the mixing process, achieving thorough mixing between the raw material powder and the binder, resulting in reliable granulation and high-quality granules.

[0043] The rotary drive module 110 can be configured to include a rotary motor and a rotary reduction gear set, with the rotary motor connected to the rotary plate 120 via the rotary reduction gear set; the lifting drive module 310 can be configured to include a lifting drive motor, a lifting synchronous belt mechanism, a lifting reduction gear set, a lifting gear, a lifting rack, and a lifting guide mechanism, with the lifting drive motor connected to the input end of the lifting reduction gear set via the lifting synchronous belt mechanism, the output end of the lifting reduction gear set connected to the lifting gear, the lifting gear meshing with the lifting rack, the lifting rack connected to the lifting plate 320, and the lifting guide mechanism connecting the lifting plate 320 and the device frame, and the lifting guide mechanism can be configured to include a guide sleeve and a guide column; the stirring drive module 330 can be configured to include a stirring motor and a stirring synchronous belt mechanism, with the stirring motor connected to the stirring paddle 340 via the stirring synchronous belt mechanism.

[0044] Understandably, the bottom of the rotating plate 120 is provided with a guide pad 150 surrounding the edge of the positioning elongated hole 122. The guide pad 150 is U-shaped. The side of the guide pad 150 near the clearance hole 121 is provided with a guide slope 151. The guide slope 151 is inclined to the rotating plate 120. The inclined end face of the guide pad 150 is used to smoothly guide the positioning block 220 from the bottom surface of the rotating plate 120 to the bottom surface of the guide pad 150, so that the bottom surface of the material barrel 200 is engaged with the positioning block 220 and clamped to the upper and lower sides of the rotating plate 120, thereby forming an upper and lower clamping structure, which can improve the rigidity and stability of the connection structure between the rotating plate 120 and the material barrel 200.

[0045] Specifically, within the tolerance range, the sum of the thickness of the guide gasket 150 and the thickness of the rotating plate 120 is equal to the length of the insert 210, which can effectively ensure the clamping and positioning effect between the positioning block 220 and the rotating plate 120. Preferably, the surface of the guide gasket 150 is coated with a wear-resistant metal layer or a wear-resistant engineering plastic layer, which can not only reduce friction loss, but also maintain long-term stability.

[0046] It is understood that the rotation axis of the stirring paddle 340 is perpendicular to the horizontal plane, and the rotation axis of the material tank 200 forms an acute angle with the horizontal plane. That is, the rotation axis of the stirring paddle 340 and the rotation axis of the material tank 200 form an acute angle, which is generally set to 5° to 45°. Preferably, the acute angle formed between the rotation axis of the material tank 200 and the horizontal plane is 20°.

[0047] When the tilted hopper 200 rotates, the hopper wall and bottom form asymmetrical forces, continuously throwing the powder at the bottom upwards to avoid sedimentation. The vertical rotation of the stirring paddle 340 and the tilted rotation of the hopper 200 create cross-shear forces, which significantly improves the mixing uniformity of the binder and powder, especially suitable for high-viscosity materials. The tilt angle is optimized by fluid dynamics simulation to ensure that the material is evenly distributed under the balance of centrifugal force and gravity, reducing dead corners at the edges and effectively achieving full mixing between the raw material powder and the binder.

[0048] It is understandable that the driving direction of the lifting drive module 310 is parallel to the rotation axis of the material barrel 200, and the barrel cover 350 is perpendicular to the rotation axis of the material barrel 200. During the lifting process, the barrel cover 350 always remains coaxial with the opening of the material barrel 200 to avoid poor sealing or mechanical interference caused by skewness. This effectively ensures that the barrel cover 350 can smoothly close to the opening of the material barrel 200 when it is indirectly driven down by the lifting drive module 310.

[0049] It is understandable that the bottom of the bucket lid 350 is provided with an auxiliary granulation knife 370. The auxiliary granulation knife 370 is parallel to the rotation axis of the material bucket 200 and is located on one side of the stirring paddle 340. By setting the rotation axis of the stirring paddle 340 and the granulation knife to form an angle, in conjunction with the rotating material bucket 200, the uniformity of material distribution in various areas of the material bucket 200 can be effectively improved.

[0050] Specifically, the auxiliary granulator 370 is equipped with branch blades 371, which are perpendicular to the auxiliary granulator 370. The ends of the branch blades 371 can be provided with wavy cutting edges, which can perform three-dimensional shearing and crushing of agglomerated raw materials. Through the auxiliary granulator 370 with branch blades 371 and the stirring paddle 340, the stirring paddle 340 can generate eddies, and the auxiliary granulator 370 can form turbulence, thereby achieving anisotropic stirring and granulation of the raw materials in the material tank 200, which can effectively improve the uniformity and comprehensiveness of stirring.

[0051] Understandably, the bottom of the lifting plate 320 is rotatably connected to at least three limiting wheels 380. These limiting wheels 380 can be polyester-coated bearings. All the limiting wheels 380 surround the barrel lid 350 so that when the lid 350 is closed, the limiting wheels 380 surround the material barrel 200. The rotation axis of each limiting wheel 380 is parallel to the rotation axis of the material barrel 200. When the barrel lid 350 is closed on the opening of the material barrel 200, each limiting wheel 380 surrounds the material barrel 200. As the material barrel 200 rotates, the multiple limiting wheels 380 enable online alignment and positioning of the material barrel 200, compensating for processing or installation errors, effectively ensuring the concentricity of the material barrel 200 during operation, and reducing wear on the material barrel 200 through rotational friction.

[0052] Understandably, the lid 350 is equipped with an observation window 351. During operation, the material mixing and granulation situation in the material bucket 200 can be observed in a timely manner through the observation window 351, and the granulation progress or faults can be monitored in a timely manner.

[0053] Among them, the observation window 351 can adopt a structure with an opening in the lifting plate 320 and a window cover. The window cover can be opened to achieve observation, and the window cover can be closed to avoid contamination of the raw materials. The observation window 351 can also adopt a double-layer tempered glass window structure, which can be directly observed and can avoid contamination of the raw materials in the material bucket 200 during the observation process.

[0054] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A wet granulation apparatus, characterized in that, include: A rotating assembly (100) includes a rotating drive module (110) and a rotating plate (120). The rotating plate (120) is connected to the rotating drive module (110). The rotating plate (120) is provided with a plurality of clearance holes (121). Each clearance hole (121) is connected to a positioning elongated hole (122) on one side. The bottom of the rotating plate (120) is provided with a rotating seat (130). The rotating seat (130) is rotatably connected to a rocker (140). One end of the rocker (140) is provided with a locking block (141) at the top. The other end of the rocker (140) is provided with a counterweight block (142) at the bottom, so that the locking block (141) tends to move closer to the clearance hole (121). A material bucket (200) is provided on the rotating plate (120). The bottom of the material bucket (200) is provided with a plurality of inserts (210) that match the positioning elongated holes (122). The bottom of each insert (210) is provided with a positioning block (220) that matches the clearance hole (121). The positioning block (220) abuts against the bottom surface of the rotating plate (120). The locking block (141) is located on the side of the positioning block (220) away from the positioning elongated holes (122). The stirring assembly (300) includes a lifting drive module (310), a lifting plate (320), a stirring drive module (330), and a stirring paddle (340). The lifting plate (320) is connected to the lifting drive module (310), the stirring drive module (330) is connected to the lifting plate (320), and the stirring paddle (340) is connected to the stirring drive module (330). The bottom of the lifting plate (320) is provided with a bucket cover (350) located above the material bucket (200), and the bottom of the bucket cover (350) is provided with a spray head (360).

2. The wet granulation apparatus according to claim 1, characterized in that, The bottom of the rotating plate (120) is provided with a guide pad (150) surrounding the edge of the positioning elongated hole (122). The guide pad (150) is provided with a guide slope (151) on the side near the clearance hole (121). The guide slope (151) is inclined to the rotating plate (120).

3. The wet granulation apparatus according to claim 1, characterized in that, The rotation axis of the stirring paddle (340) is perpendicular to the horizontal plane, and an acute angle clamp is formed between the rotation axis of the material bucket (200) and the horizontal plane.

4. The wet granulation apparatus according to claim 3, characterized in that, The driving direction of the lifting drive module (310) is parallel to the rotation axis of the material bucket (200), and the bucket cover (350) is perpendicular to the rotation axis of the material bucket (200).

5. A wet granulation apparatus according to claim 4, characterized in that, The bottom of the bucket lid (350) is provided with an auxiliary granulation knife (370), which is parallel to the rotation axis of the material bucket (200) and is located on one side of the stirring paddle (340).

6. A wet granulation apparatus according to claim 5, characterized in that, The auxiliary granulation blade (370) is provided with branch blades (371).

7. A wet granulation apparatus according to claim 1, characterized in that, The bottom of the lifting plate (320) is rotatably connected to at least three limiting wheels (380), all of which surround the barrel cover (350), and the rotation axis of the limiting wheels (380) is parallel to the rotation axis of the material barrel (200).

8. A wet granulation apparatus according to claim 1, characterized in that, The bucket lid (350) is provided with an observation window (351).

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