A sealing pot cover for a granulating pot

Abstract

The present application relates to the technical field of granulator, in particular to a sealing pot cover of a granulation pot. The present application relates to a sealing pot cover of a granulation pot, a supporting part is vertically fixed on a supporting table; the pot cover is rotatably fixed on the end of the conveying shaft of a driving motor; a cleaning assembly is arranged on the inner top wall of the pot cover; a linkage assembly is slidably arranged on the outer wall of the pot cover and is linked with the cleaning assembly; wherein, the pot cover is moved to the granulation pot, the movable end of the supporting part drives the pot cover to reciprocatingly move up and down, so that the inner wall of the pot cover and the upper end wall of the granulation pot repeatedly extrude the cleaning assembly to clean the residual material on the inner top wall of the pot cover; when opening, the movable end of the supporting part drives the pot cover to move upward, so that the linkage assembly collides with the positioning block on the outer wall of the granulation pot to shake the residual material on the inner wall of the granulation pot. Through the cooperation of the cleaning assembly and the linkage assembly, the material in the granulation pot can be shaken when the pot cover is opened, and the material on the inner top wall of the pot cover can be cleaned before the pot cover is closed, thereby improving the cleaning efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of granulator, in particular to a sealing pot cover of a granulation pot. BACKGROUND

[0002] The wet granulator is driven by the stirring paddle at the bottom of the material pot to make rotary motion along the pot body and to be scattered under the action of the high-speed rotation of the cutter installed on the side wall of the material pot. Under the drive of the two cutters, the material is continuously stirred and mixed to achieve the final granulation effect.

[0003] After the granulation pot is finished, water is injected into the granulation pot to clean the granulation pot. However, it is not easy to clean the residual material in the inner wall of the pot cover when water is injected into the granulation pot for cleaning. In order to maintain cleanliness, a large amount of time and effort is needed to manually clean the pot cover. Therefore, it is necessary to develop a sealing pot cover for a granulation pot. SUMMARY

[0004] The purpose of the present application is to provide a sealing pot cover for a granulation pot.

[0005] In order to solve the above technical problems, the present application provides a sealing pot cover for a granulation pot, which comprises:

[0006] The material pot is fixed on the upper end of the support table, and the material pot is suitable for carrying and mixing the stirring material;

[0007] The support part is vertically fixed on the support table, and the support part is arranged on one side of the material pot;

[0008] The driving motor is vertically fixed on the movable end of the support part;

[0009] The pot cover is matched with the material pot, and the pot cover is rotatably fixed on the end of the transmission shaft of the driving motor;

[0010] The cleaning assembly is arranged in the inner top wall of the pot cover;

[0011] The linkage assembly is slidably arranged on the outer wall of the pot cover, and the linkage assembly is linked with the cleaning assembly; wherein

[0012] The pot cover is moved to the material pot, the movable end of the support part drives the pot cover to move up and down reciprocally, so that the inner wall of the pot cover and the upper end wall of the material pot press the cleaning assembly for multiple times to clean the residual material in the inner top wall of the pot cover;

[0013] When opened, the movable end of the support part drives the pot cover to move upward, so that the linkage assembly collides with the positioning block of the outer wall of the material pot to shake the residual material in the inner wall of the material pot.

[0014] Preferably, a plurality of first positioning blocks are provided at equal intervals along the circumference of the outer wall of the opening of the material pot;

[0015] The inner wall of the pot lid is provided with a plurality of second positioning blocks at equal intervals along its circumference, with one second positioning block corresponding to one first positioning block; wherein

[0016] When the lid is closed, the second positioning block is offset from the first positioning block, and the lid is rotated circumferentially until the second positioning block abuts against the first positioning block to seal the pot.

[0017] Preferably, the cleaning assembly includes a sealing ring and a limiting strip, wherein the limiting strip is annular and is fixed to the inner top wall of the pot lid;

[0018] A gap is provided between the limiting strip and the side wall of the pot lid, and the sealing ring is disposed in the gap;

[0019] The sealing ring is adapted to seal the pot lid and the flask.

[0020] Preferably, the sealing ring is hollow inside, and two vent holes are provided at the upper end of the sealing ring, with the vent holes facing the inner top wall and side wall of the pot lid; wherein

[0021] When the lid is closed on the upper end of the pot, the pot compresses the sealing ring to deform it, causing the sealing ring to blow air into the inner top wall of the lid to clear moisture and residue from the gap.

[0022] Preferably, one linkage component corresponds to one second positioning block, and the linkage component and the second positioning block are offset from each other; wherein

[0023] When the pot lid is opened, the linkage component impacts the first positioning block to vibrate the pot.

[0024] Preferably, the linkage component includes: a sliding plate, a striking plate, and a compression spring. A sliding groove is formed on the side wall of the pot lid. The sliding plate is slidably disposed in the sliding groove, and the inner end of the sliding plate is linked with the sealing ring.

[0025] The striking plate is fixed to the outer end of the sliding plate, the striking plate is "L" shaped, and the striking plate is located below the pot lid;

[0026] The lower end of the striking plate is adapted to abut against the first positioning block;

[0027] The compression spring is sleeved on the outer wall of the sliding plate, and one end of the compression spring is fixed inside the sliding groove; wherein

[0028] The lid moves toward the material pot, the material pot squeezes the sealing ring to deform, and the sealing ring simultaneously squeezes the sliding plate to slide outward, so that the striking plate moves away from the side wall of the material pot;

[0029] When opened, the pot lid is rotated circumferentially to misalign the first and second positioning blocks, causing the pot lid to move upwards. The lower end of the striking plate then impacts the first positioning block to vibrate the pot.

[0030] Preferably, the support includes: a column, a rotating shaft, a lifting cylinder, a connecting sleeve, and a connecting plate. The column is vertically fixed to the upper end of the support platform and is located on one side of the material pot.

[0031] The column is hollow inside, and the lifting cylinder is fixed inside the column;

[0032] The rotating shaft is fixed to the movable end of the lifting cylinder, the rotating shaft is rotatably disposed inside the column, and the upper end of the rotating shaft protrudes from the column;

[0033] The connecting sleeve is fitted onto the upper end of the outer wall of the rotating shaft, and the connecting sleeve is disposed above the column;

[0034] One end of the connecting plate is fixed to the outer wall of the connecting sleeve, and the other end of the connecting plate is fixed to the outer wall of the drive motor; wherein

[0035] The pot lid can rotate circumferentially about the pivot axis;

[0036] The lifting cylinder drives the rotating shaft to move downwards, thereby driving the pot lid to move downwards or downwards.

[0037] Preferably, a bushing is fitted on the outer wall of the rotating shaft, and the bushing is disposed between the outer wall of the rotating shaft and the inner wall of the column. The bushing is adapted to limit the circumferential rotation of the rotating shaft.

[0038] Preferably, a raised disc is fixed to the outer wall of the rotating shaft, and the outer diameter of the raised disc is not less than the outer diameter of the column; a washer is provided at the lower end of the raised disc, and the lower end of the washer abuts against the upper end of the column.

[0039] Preferably, an expansion sleeve is fitted onto the upper end of the outer wall of the rotating shaft, and the expansion sleeve is disposed between the rotating shaft and the connecting sleeve.

[0040] The beneficial effects of this invention are as follows: A granulation pot sealing lid, through the cooperation of a drive motor, a support part, a cleaning component, and a linkage component, achieves the effect of cleaning residual materials on the inner wall of the granulation pot and the inner wall of the lid. Before closing the lid, the lid is moved towards the granulation pot multiple times to compress the sealing ring, and the air vents within the sealing ring repeatedly blow air towards the inner top and inner side walls of the lid, thereby cleaning moisture and residual materials from the inner wall of the lid. Furthermore, through the cooperation of the cleaning component and the linkage component, when the lid is opened, the first and second positioning blocks are misaligned, causing the lid and the upper part of the granulation pot to separate. At this time, the striking plate and the first positioning block coincide on the horizontal projection. As the lid moves upward, the striking plate strikes the first positioning block, thereby vibrating the granulation pot and the lid. This vibration effectively cleans residual materials from the inner wall of the granulation pot and the inner wall of the lid, improving the efficiency of cleaning residual materials. Attached Figure Description

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0042] Figure 1 This is a perspective view of a preferred embodiment of a granulation pot sealing lid according to the present invention;

[0043] Figure 2 This is a perspective view of the support portion and the pot lid of the present invention;

[0044] Figure 3 This is a longitudinal cross-sectional view of the cleaning component and the linkage component of the present invention;

[0045] Figure 4 This is a schematic diagram of the lid of the present invention in the closed state;

[0046] Figure 5 This is a schematic diagram showing the state of the striking plate and the first positioning block of the present invention;

[0047] Figure 6 This is a longitudinal cross-sectional view of the support portion of the present invention;

[0048] Figure 7 This is a schematic diagram of the first positioning block and the second positioning block of the present invention.

[0049] In the picture:

[0050] 1. Material pot; 10. Support platform; 11. First positioning block;

[0051] 2. Pot lid; 20. Second positioning block;

[0052] 3. Drive motor;

[0053] 4. Support unit; 41. Column; 42. Rotating shaft; 43. Lifting cylinder; 44. Connecting sleeve; 45. Connecting plate; 46. Bushing; 47. Washer; 48. Raised disc; 49. Expansion sleeve;

[0054] 5. Cleaning components; 51. Sealing ring; 52. Limiting strip; 53. Vent hole;

[0055] 6. Linkage components; 61. Sliding plate; 62. Striking plate; 63. Compression spring. Detailed Implementation

[0056] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0057] like Figures 1 to 7As shown, the present invention provides a granulation pot sealing lid, comprising: a material pot 1, a lid 2, a drive motor 3, a support 4, a cleaning component 5, and a linkage component 6. The material pot 1 is fixed to the upper end of a support platform 10, and the material pot 1 is hollow inside, suitable for carrying and mixing materials. The support 4 is vertically fixed to the support platform 10 and is disposed on one side of the material pot 1. The lid 2 is linked to the movable end of the support 4, and the support 4 is adapted to drive the lid 2 to move vertically upward or downward. The drive motor 3 is vertically fixed to the movable end of the support 4. The lid 2 is adapted to the material pot 1, and the lid 2 is rotatably fixed to the end of the conveying shaft of the drive motor 3. The cleaning component 5 is disposed on the inner top wall of the lid 2. The cleaning component 5 is adapted to clean moisture and residual materials on the lid 2. The linkage component 6 is slidably disposed on the outer wall of the lid 2, and is linked to the cleaning component 5. The support 4 is located on the upper end of a support platform 10, and the interior of the material pot 1 is hollow inside the material pot 1, suitable for carrying and mixing materials. The cleaning component 5 ... Part 4 drives the lid 2 to move onto the material pot 1. The movable end of the support part 4 drives the lid 2 to move up and down reciprocally, so that the inner wall of the lid 2 and the upper wall of the material pot 1 repeatedly squeeze the cleaning component 5 to clean the material and moisture remaining on the inner top wall of the lid 2. When sealing, the lid 2 presses the cleaning component 5 downward, so that the cleaning component 5 undergoes elastic deformation and seals the lid 2 and the material pot 1. When opening, the drive motor 3 drives the lid 2 to rotate circumferentially, so that the second positioning block 20 on the lid 2 is misaligned with the first positioning block 11 on the material pot 1, so that the lid 2 is separated from the material pot 1. The movable end of the support part 4 drives the lid 2 to move upward. At this time, the lid 2 rotates until the projection of the linkage component 6 and the first positioning block 11 in the horizontal direction coincides. During the upward movement of the lid 2, the linkage component 6 collides with the first positioning block 11 on the outer wall of the material pot 1 to vibrate and clean the material and moisture remaining on the inner wall of the material pot 1 and the inner wall of the lid 2. By cooperating with the cleaning component 5 and the linkage component 6, the moisture and residual material on the inner wall of the pot lid 2 can be cleaned before the pot lid 2 is closed; when the pot lid 2 is opened, the linkage component 6 impacts the outer wall of the material pot 1 and the vibration can clean the moisture and residual material on the inner wall of the material pot 1 and the inside of the pot lid 2, which greatly improves the efficiency of cleaning the residual material on the pot lid 2 and the material pot 1.

[0058] To improve the stability of the lid 2 and the pot 1, a number of first positioning blocks 11 are evenly spaced around the outer wall of the opening of the pot 1; there are four first positioning blocks 11. A number of second positioning blocks 20 are evenly spaced around the inner wall of the lid 2, with one second positioning block 20 corresponding to one first positioning block 11. When the lid is closed, the second positioning blocks 20 are misaligned with the first positioning blocks 11. The lid 2 is rotated circumferentially until the second positioning blocks 20 abut against the first positioning blocks 11. At this time, the first positioning blocks 11 and the second positioning blocks 20 overlap in the horizontal projection, and the first positioning blocks 11 and the second positioning blocks 20 lock each other. At this time, the lid 2 and the pot 1 compress the cleaning component 5 to deform, thereby sealing the pot 1.

[0059] To facilitate the cleaning of residual moisture and materials inside the pot lid 2, the cleaning component 5 includes: a sealing ring 51 and a limiting strip 52. The limiting strip 52 is annular and fixed to the inner top wall of the pot lid 2. A gap is provided between the limiting strip 52 and the side wall of the pot lid 2, and the sealing ring 51 is disposed in the gap. The sealing ring 51 is O-shaped and hollow inside, and the sealing ring 51 is suitable for sealing the pot lid 2 and the material pot 1. The sealing ring 51 is made of flexible material and is hollow inside. Two air vents 53 are provided at the upper end of the sealing ring 51. The upper end of the sealing ring 51 is fixed to the inner wall of the pot lid 2, so that the two air vents 53 face the inner top wall and side wall of the pot lid 2, respectively. When the pot lid 2 is closed on the upper end of the material pot 1, the pot lid 2 moves downwards multiple times, causing the upper end of the pot lid 2 and the material pot 1 to repeatedly compress the sealing ring 51. The material pot 1 deforms the sealing ring 51, and the air in the hollow part of the sealing ring 51 is blown towards the pot lid 2 through the two air vents 53, causing the sealing ring 51 to blow air towards the inner top wall of the pot lid 2 to clear moisture and residue from the gaps.

[0060] To achieve the effect of vibrating the material pot 1, one linkage component 6 corresponds to one second positioning block 20, and one linkage component 6 is arranged between two adjacent second positioning blocks 20; the linkage component 6 and the second positioning block 20 are staggered; when the pot lid 2 is opened, the drive motor 3 drives the pot lid 2 to rotate circumferentially, so that the first positioning block 11 and the second positioning block 20 separate from each other in a self-abutting state, and at this time, the projection of the linkage component 6 and the first positioning block 11 in the horizontal direction overlaps with each other; when the pot lid 2 is driven upward, the lower end of the linkage component 6 impacts the first positioning block 11 to vibrate the material pot 1 and the pot lid 2, thereby vibrating and cleaning away the moisture and residual material inside the inner wall of the material pot 1 and the pot lid 2. The linkage component 6 includes a sliding plate 61, a striking plate 62, and a compression spring 63. A sliding groove is formed on the side wall of the pot lid 2. The sliding plate 61 is slidably disposed within the sliding groove, and the inner end of the sliding plate 61 is linked with the sealing ring 51. When the sealing ring 51 deforms, it is adapted to push the sliding plate 61 outward. The elastic force of the sealing ring 51 when deformed is greater than the elastic force of the compression spring 63. During the process of the sealing ring 51 pressing the sliding plate 61 outward, the sliding plate 61... 1. The compression spring 63 is compressed; the striking plate 62 is fixed to the outer end of the sliding plate 61, the striking plate 62 is L-shaped, the lower end of the striking plate 62 extends toward the outer wall of the material pot 1, and the striking plate 62 is disposed below the pot lid 2; the lower end of the striking plate 62 is adapted to abut against the first positioning block 11; the compression spring 63 is sleeved on the outer wall of the sliding plate 61, and one end of the compression spring 63 is fixed in the sliding groove; wherein, the pot lid 2 moves toward the material pot 1. The material pot 1 compresses and deforms the sealing ring 51. During the deformation process, the sealing ring 51 gradually compresses the sliding plate 61 to slide outward, so that the striking plate 62 moves away from the side wall of the material pot 1. When the pot lid 2 is opened, the drive motor 3 drives the pot lid 2 to rotate circumferentially, so that the first positioning block 11 and the second positioning block 20 are misaligned. At this time, the horizontal projections of the striking plate 62 and the first positioning block 11 overlap. The movable end of the support part 4 drives the pot lid 2 to move upward. The lower end of the striking plate 62 impacts the first positioning block 11, thereby vibrating the material pot 1 and the pot lid 2. The vibration generated by the impact force between the striking plate 62 and the first positioning block 11 cleans the residual material and moisture on the inner wall of the pot lid 2 and the inner wall of the material pot 1. By repeatedly driving the pot lid 2 to move up and down, the striking plate 62 and the first positioning block 11 impact each other multiple times, thereby achieving the effect of cleaning the residual material and moisture on the inner wall of the pot lid 2 and the inner wall of the material pot 1, and improving the efficiency of cleaning the pot lid 2 and the material pot 1.

[0061] To facilitate the rotation of the pot lid 2, the support part 4 includes: a column 41, a rotating shaft 42, a lifting cylinder 43, a connecting sleeve 44, and a connecting plate 45. The column 41 is vertically fixed to the upper end of the support platform 10 and is located on one side of the material pot 1. The column 41 is hollow inside, and the lifting cylinder 43 is fixed inside the column 41. The rotating shaft 42 is fixed to the movable end of the lifting cylinder 43, and the lifting cylinder 43 is adapted to drive the rotating shaft 42 to move vertically up and down. The rotating shaft 42 is rotatable. The rotating shaft 42 is movably disposed within the column 41, with its upper end protruding from the column 41. A connecting sleeve 44 is fitted onto the upper end of the outer wall of the rotating shaft 42 and is positioned above the column 41. One end of a connecting plate 45 is fixed to the outer wall of the connecting sleeve 44, and the other end is fixed to the outer wall of the drive motor 3. The pot lid 2 is capable of circumferential rotation about the rotating shaft 42. The lifting cylinder 43 drives the rotating shaft 42 to move up and down, thereby driving the pot lid 2 to move upward or downward. A bushing 46 is fitted onto the outer wall of the rotating shaft 42, positioned between the outer wall of the rotating shaft 42 and the inner wall of the column 41, and is adapted to limit the circumferential rotation of the rotating shaft 42. A raised disc 48 is fixed to the outer wall of the rotating shaft 42, and the outer diameter of the raised disc 48 is not less than the outer diameter of the column 41. A washer 47 is provided at the lower end of the raised disc 48, and the lower end of the washer 47 abuts against the upper end of the column 41. The bushing 46 and the washer 47 are made of wear-resistant plastic, such as polytetrafluoroethylene (PTFE). This material has strong compressive strength and very small deformation under radial loads up to 100 MPa. This material is designed for low-to-medium speed movement, and its coefficient of friction is higher than that of bearings. This provides a "damping feel" when the user pushes the lid 2 to rotate circumferentially around the rotating shaft 42, ensuring the operator's safety. Furthermore, this material is oil-free and self-lubricating, so it will not cause pollution to the surrounding environment during use.

[0062] Preferably, an expansion sleeve 49 is fitted onto the upper end of the outer wall of the rotating shaft 42, and the expansion sleeve 49 is disposed between the rotating shaft 42 and the connecting sleeve 44. The expansion sleeve 49 simplifies the connection and installation of the connecting sleeve 44 and the rotating shaft 42. Simultaneously, the expansion sleeve 49 can withstand multiple loads and effectively transmit torque, axial force, or a combination of both. Based on the above description of the preferred embodiment of the present invention, those skilled in the art can make various changes and modifications without departing from the technical concept of this invention. The technical scope of this invention is not limited to the contents of the specification but must be determined according to the scope of the claims.

Claims

1. A sealing lid for a granulation pot, characterized in that, include: The material pot (1), pot lid (2), drive motor (3), support part (4), cleaning component (5) and linkage component (6) are provided. The material pot (1) is fixed on the upper end of the support platform (10). The material pot (1) is suitable for carrying and mixing materials. The support part (4) is vertically fixed on the support platform (10), and the support part (4) is located on one side of the material pot (1); The drive motor (3) is vertically fixed to the movable end of the support (4); The pot lid (2) is adapted to the material pot (1), and the pot lid (2) is rotatably fixed to the end of the conveying shaft of the drive motor (3); The cleaning component (5) is disposed on the inner top wall of the pot lid (2); The linkage component (6) is slidably disposed on the outer wall of the pot lid (2), and the linkage component (6) is linked with the cleaning component (5); The outer wall of the opening of the material pot (1) is provided with a number of first positioning blocks (11) at equal intervals in the circumference. The cleaning component (5) includes a sealing ring (51) and a limiting strip (52), wherein the sealing ring (51) is adapted to seal the pot lid (2) and the material pot (1); The sealing ring (51) is made of flexible material. The sealing ring (51) is hollow inside, and two air vents (53) are opened at the upper end of the sealing ring (51). The air vents (53) face the inner top wall and side wall of the pot lid (2). The linkage component (6) includes: a sliding plate (61), a striking plate (62) and a compression spring (63). A sliding groove is provided on the side wall of the pot lid (2). The sliding plate (61) is slidably disposed in the sliding groove, and the inner end of the sliding plate (61) is linked with the sealing ring (51). The striking plate (62) is fixed to the outer end of the sliding plate (61), the striking plate (62) is "L" shaped, and the striking plate (62) is located below the pot lid (2); The lower end of the striking plate (62) is adapted to abut against the first positioning block (11); The compression spring (63) is sleeved on the outer wall of the sliding plate (61), and one end of the compression spring (63) is fixed in the sliding groove.

2. The granulation pot sealing lid as described in claim 1, characterized in that, The inner wall of the pot lid (2) is provided with a plurality of second positioning blocks (20) at equal intervals around the perimeter, and one second positioning block (20) corresponds to one first positioning block (11); wherein When the lid is closed, the second positioning block (20) is misaligned with the first positioning block (11), and the lid (2) is rotated circumferentially until the second positioning block (20) abuts against the first positioning block (11) to seal the pot (1).

3. The granulation pot sealing lid as described in claim 2, characterized in that, The limiting strip (52) is annular and is fixed to the inner top wall of the pot lid (2); A gap is provided between the limiting strip (52) and the side wall of the pot lid (2), and the sealing ring (51) is disposed in the gap.

4. The granulation pot sealing lid as described in claim 3, characterized in that, When the lid (2) is placed on the upper end of the pot (1), the pot (1) squeezes the sealing ring (51) to deform, so that the sealing ring (51) blows air into the inner top wall of the lid (2) to clean the water vapor and residue in the gap.

5. The granulation pot sealing lid as described in claim 4, characterized in that, One linkage component (6) corresponds to one second positioning block (20), and the linkage component (6) and the second positioning block (20) are misaligned; in When the pot lid (2) is opened, the linkage component (6) impacts the first positioning block (11) to vibrate the pot (1).

6. The granulation pot sealing lid as described in claim 5, characterized in that, The lid (2) moves toward the pot (1), the pot (1) squeezes the sealing ring (51) to deform, and the sealing ring (51) simultaneously squeezes the sliding plate (61) to slide outward, so that the striking plate (62) moves away from the side wall of the pot (1). When opened, the pot lid (2) is rotated circumferentially to misalign the first positioning block (11) and the second positioning block (20), and the pot lid (2) moves upward. The lower end of the striking plate (62) collides with the first positioning block (11) to vibrate the pot (1).

7. A granulation pot sealing lid as described in claim 6, characterized in that, The support part (4) includes: a column (41), a rotating shaft (42), a lifting cylinder (43), a connecting sleeve (44) and a connecting plate (45). The column (41) is vertically fixed to the upper end of the support platform (10), and the column (41) is located on one side of the material pot (1). The column (41) is hollow inside, and the lifting cylinder (43) is fixed inside the column (41); The rotating shaft (42) is fixed to the movable end of the lifting cylinder (43), and the rotating shaft (42) is rotatably disposed inside the column (41), with the upper end of the rotating shaft (42) protruding from the column (41). The connecting sleeve (44) is fitted onto the upper end of the outer wall of the rotating shaft (42), and the connecting sleeve (44) is positioned above the column (41); One end of the connecting plate (45) is fixed to the outer wall of the connecting sleeve (44), and the other end of the connecting plate (45) is fixed to the outer wall of the drive motor (3); wherein The pot lid (2) can rotate circumferentially about the pivot (42); The lifting cylinder (43) drives the rotating shaft (42) to move up and down, thereby driving the pot lid (2) to move up or down.

8. The granulation pot sealing lid as described in claim 7, characterized in that, A bushing (46) is fitted on the outer wall of the rotating shaft (42). The bushing (46) is located between the outer wall of the rotating shaft (42) and the inner wall of the column (41). The bushing (46) is adapted to limit the circumferential rotation of the rotating shaft (42).

9. A granulation pot sealing lid as described in claim 8, characterized in that, A raised disc (48) is fixed on the outer wall of the rotating shaft (42), and the outer diameter of the raised disc (48) is not less than the outer diameter of the column (41); a washer (47) is provided at the lower end of the raised disc (48), and the lower end of the washer (47) abuts against the upper end of the column (41).

10. A granulation pot sealing lid as described in claim 9, characterized in that, An expansion sleeve (49) is fitted onto the upper end of the outer wall of the rotating shaft (42), and the expansion sleeve (49) is disposed between the rotating shaft (42) and the connecting sleeve (44).

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