Plastic master batch drying device

Abstract

The utility model belongs to the technical field of plastic master batch production, and discloses a plastic master batch drying device which comprises a supporting assembly. The drying assembly is mounted on the supporting assembly and is used for drying the plastic master batches; wherein the drying assembly comprises a vertical driving part, a loading part and an air conveying part; the vertical driving part is mounted on the supporting assembly; the loading part and the air conveying part are both mounted on the vertical driving part; the vertical driving part is used for driving the loading part and the air conveying part to move back and forth in the vertical direction; the loading part is used for loading plastic master batches; and the air conveying part is used for conveying hot air into the loading part to dry the plastic master batches. The loading part is shaken in the vertical direction, the master batches can generate relative movement in the loading part under the inertia effect, and the movement increases gaps among the master batches, so that hot air can penetrate through a master batch layer more easily, obstruction and retention of the hot air among the master batches are reduced, the hot air can make more sufficient contact with the surfaces of the master batches, and the service life of the master batches is prolonged. And the heat transfer efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic masterbatch production, and particularly relates to a drying device for plastic masterbatch. Background Technique

[0002] When producing plastic masterbatch, it is necessary to dry it to remove moisture and improve product quality. For a large quantity of plastic masterbatch, generally, hot air drying can be adopted. The drying temperature is generally between 70°C and 180°C, and the time depends on the type of plastic, water content, and particle size. The moisture in the masterbatch is evaporated by hot air.

[0003] Hot air drying requires a drying oven and a hot air device. The drying oven loads the masterbatch, and the hot air device conveys hot air into the drying oven. Stirring devices may also be used in hot air drying to improve the drying effect and speed up the drying progress. However, stirring structures such as stirring plates in the stirring device often promote the horizontal movement of the masterbatch, and the gaps generated between the masterbatch during movement are limited, which is not conducive to drying the bonding area between the masterbatch by hot air. When the drying time is short, the drying effect is not good. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a drying device for plastic masterbatch to solve the problems in the above background technique.

[0005] To solve the above technical problems, the utility model provides a drying device for plastic masterbatch, including:

[0006] A support assembly;

[0007] And a drying assembly, installed on the support assembly for drying the plastic masterbatch;

[0008] Among them, the drying assembly includes a vertical driving part, a loading part, and an air delivery part; the vertical driving part is installed on the support assembly; both the loading part and the air delivery part are installed on the vertical driving part; the vertical driving part is used to drive the loading part and the air delivery part to move back and forth in the vertical direction; the loading part is used to load the plastic masterbatch; the air delivery part is used to convey hot air into the loading part to dry the plastic masterbatch.

[0009] Through such a design, by shaking the loading part in the vertical direction, the masterbatch will generate relative movement in the loading part under the action of inertia. This movement increases the gap between the masterbatch, enables hot air to penetrate the masterbatch layer more easily, reduces the obstruction and retention of hot air between the masterbatch, enables hot air to contact the surface of the masterbatch more fully, and improves the efficiency of heat transfer.

[0010] Preferably, the support assembly includes a connected support part and a moving part. The vertical driving part is installed on the support part, and the moving part can drive the support part to move.

[0011] With such a design, the moving part can drive the supporting part to move, and then transfer the dried plastic masterbatch.

[0012] Preferably, the loading part includes a loading sub-part, a plugging sub-part, a first covering sub-part, and a second covering sub-part; the loading sub-part is installed on the vertical driving part, the loading sub-part has a loading cavity with an upward opening, and the loading cavity is used for loading plastic masterbatch; the plugging sub-part is installed on the loading sub-part and can be separated from the loading sub-part, and the plugging sub-part is used to plug the opening of the loading cavity; a feeding port and an air outlet communicating with the loading cavity are formed on the plugging sub-part; the first covering sub-part and the second covering sub-part are both installed on the plugging sub-part, and the first covering sub-part and the second covering sub-part are respectively used to cover the opening of the feeding port and the opening of the air outlet; the air blowing part can convey hot air to the loading cavity.

[0013] With such a design, the masterbatch can enter the loading cavity through the feeding port, and the gas in the loading cavity can be discharged through the air outlet.

[0014] Preferably, the air blowing part includes a connected air blowing sub-part and a first connecting sub-part, and the air blowing sub-part is installed on the vertical driving part;

[0015] An air inlet communicating with the loading cavity is formed at the top end of the side wall of the loading sub-part, the first connecting sub-part is communicated with the air inlet, and the air blowing sub-part can convey hot air to the loading cavity through the first connecting sub-part.

[0016] With such a design, the contact area between the masterbatch layer and the hot air is increased, thereby improving the drying effect.

[0017] Preferably, a partition is provided in the loading cavity, there is a cavity between the partition and the bottom wall of the loading cavity, and a number of through holes are provided on the partition for realizing air circulation in the areas on both sides of the partition;

[0018] An air vent is formed at the bottom end of the side wall of the loading sub-part, and the air vent is communicated with the cavity between the partition and the bottom wall of the loading cavity; the air blowing part further includes a second connecting sub-part, the second connecting sub-part is connected to the air blowing sub-part, the second connecting sub-part is communicated with the air vent, and the air blowing sub-part can convey hot air to the cavity between the partition and the bottom wall of the loading cavity through the second connecting sub-part.

[0019] With such a design, the contact area between the masterbatch layer and the hot air is further increased, the drying effect is further improved, and the drying progress is accelerated.

[0020] Preferably, a first groove with an upward opening and communicating with the loading cavity is formed on the side wall of the loading sub-part, a connecting piece is arranged in the first groove, the connecting piece is connected to the partition, and the connecting piece can drive the partition to move in the vertical direction.

[0021] With such a design, the separator moves the masterbatch out of the loading cavity so that the masterbatch can be collected, replacing the method of pouring out the masterbatch by rotating the loading part, etc., improving the discharging progress, and also avoiding the separation of the first communication sub - part and the second communication sub - part from the loading cavity, without worrying about their detachment.

[0022] Preferably, a second groove is provided at the top of the connecting piece, and the opening of the second groove faces away from the outer wall of the loading sub - part of the connecting piece.

[0023] With such a design, on the basis of avoiding the connecting piece occupying part of the area of the loading cavity, it provides convenience for the operator to control the connecting piece. The operator can insert a finger into the second groove to move the connecting piece.

[0024] Preferably, along the vertical direction, the bottom wall of the second groove is inclined downward to prevent the plastic masterbatch from being placed in the second groove.

[0025] With such a design, the bottom wall of the second groove is inclined downward. When the masterbatch enters the second groove during shaking, it will gradually slide out of the second groove, avoiding affecting the process of the operator moving the connecting piece through the second groove.

[0026] Preferably, a plurality of drying components are provided, and the drying components are arranged at intervals along the horizontal direction.

[0027] With such a design, the drying effect is improved.

[0028] The beneficial effects of the present utility model: By shaking the loading part along the vertical direction, on the one hand, under the action of inertia, the masterbatch will have relative movement in the loading part. This movement increases the gap between the masterbatch, making it easier for the hot air to penetrate the masterbatch layer, reducing the obstruction and retention of the hot air between the masterbatch, enabling the hot air to come into contact with the surface of the masterbatch more fully, and improving the efficiency of heat transfer; on the other hand, the position of the masterbatch in the loading part will constantly change, enabling the masterbatch inside the masterbatch layer to move to the outside, improving the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 is the overall structural schematic diagram of the plastic masterbatch drying device according to the embodiment of the present utility model;

[0031] Figure 2 is the structural schematic diagram of the drying component according to the embodiment of the present utility model;

[0032] Figure 3 is a schematic structural view of the loading part and the air delivery part of an embodiment of the present utility model;

[0033] Figure 4 is a schematic structural view of the loading part of an embodiment of the present utility model;

[0034] Figure 5 is a partial schematic structural view of the loading part of an embodiment of the present utility model;

[0035] Figure 6 is a schematic structural view of the partition member and the connecting member of an embodiment of the present utility model;

[0036] Figure 7 is a schematic structural view of the loading sub - part of an embodiment of the present utility model.

[0037] The reference numerals in the drawings are as follows:

[0038] 1. Support assembly; 11. Support part; 12. Moving part;

[0039] 2. Drying assembly; 21. Vertical driving part;

[0040] 22. Loading part; 221. Loading sub - part; 2211. Loading cavity; 2212. Air inlet; 2213. Ventilation port; 2214. First groove;

[0041] 222. Sealing sub - part; 2221. Feeding port; 2222. Air outlet;

[0042] 223. First covering sub - part;

[0043] 224. Second covering sub - part;

[0044] 23. Air delivery part; 231. Air delivery sub - part; 232. First connecting sub - part; 233. Second connecting sub - part;

[0045] 24. Partition member; 241. Through hole;

[0046] 25. Connecting member; 251. Second groove;

[0047] 3. First wall.

[0048] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0050] Embodiment 1

[0051] As Figures 1 to 7 shown, the present utility model provides a plastic masterbatch drying device, including:

[0052] a support assembly 1;

[0053] and a drying assembly 2, installed on the support assembly 1 for drying the plastic masterbatch;

[0054] Among them, the drying assembly 2 includes a vertical driving part 21, a loading part 22, and an air delivery part 23; the vertical driving part 21 is installed on the support assembly 1; both the loading part 22 and the air delivery part 23 are installed on the vertical driving part 21; the vertical driving part 21 is used to drive the loading part 22 and the air delivery part 23 to move back and forth along the vertical direction; the loading part 22 is used to load the plastic masterbatch; the air delivery part 23 is used to deliver hot air into the loading part 22 to dry the plastic masterbatch.

[0055] During drying, the plastic masterbatch is placed into the loading part 22, and the masterbatch aggregates in the loading part 22 to form a masterbatch layer. The air delivery part 23 delivers hot air into the loading part 22 to dry the plastic masterbatch. During the drying process, the support assembly 1 supports the vertical driving part 21, and the vertical driving part 21 drives the loading part 22 and the air delivery part 23 to move back and forth along the vertical direction, so as to achieve the purpose of shaking the loading part 22 along the vertical direction.

[0056] By shaking the loading part 22 along the vertical direction, on the one hand, the masterbatch will generate relative movement in the loading part 22 under the action of inertia. This movement increases the gap between the masterbatch, making it easier for the hot air to penetrate the masterbatch layer, reducing the obstruction and retention of the hot air between the masterbatch, enabling the hot air to come into contact with the surface of the masterbatch more fully, and improving the efficiency of heat transfer; on the other hand, the position of the masterbatch in the loading part 22 will constantly change, enabling the masterbatch inside the masterbatch layer to move to the outside, improving the drying effect; on the further hand, in a static or low-fluidity drying environment, the masterbatch is prone to accumulation and caking, which will further cause it difficult for the hot air to dry the masterbatch inside the masterbatch layer. By shaking the loading part 22 along the vertical direction, the accumulation and caking between the masterbatch can be avoided.

[0057] Optionally, the vertical driving part 21 can be set as an electric sliding table or a combined structure of an electric sliding table and a support base. In the latter case, both the loading part 22 and the air blowing part 23 are installed on the electric sliding table through the support base.

[0058] Optionally, the air blowing part 23 is set as a blower, and the blower can generate hot air.

[0059] The vertical driving part 21 drives the loading part 22 and the air blowing part 23 to move back and forth in the vertical direction. Here, a motion process is given as a reference. Taking the loading part 22 as an example, as follows: The vertical driving part 21 drives the loading part 22 to move upward and then stop. The masterbatch moves upward under the action of inertia, and then this process is repeated. After repeating many times, the vertical driving part 21 drives the loading part 22 to reset to the initial position.

[0060] The loading part 22 and the air blowing part 23 are synchronously driven by the vertical driving part 21, avoiding the influence of the movement of the loading part 22 on the air blowing process of the air blowing part 23.

[0061] Embodiment 2

[0062] In this embodiment, the support assembly 1 includes a connected support part 11 and a moving part 12. The vertical driving part 21 is installed on the support part 11, and the moving part 12 can drive the support part 11 to move.

[0063] The direct support structure in the support assembly 1 is the support part 11, and the support part 11 can be composed of several support frames, and no specific limitation is made here.

[0064] The moving part 12 can be set as an automobile chassis-like structure or set as a plurality of roller structures. The moving part 12 can transfer the dried plastic masterbatch by driving the support part 11 to move.

[0065] Embodiment 3

[0066] In this embodiment, the loading part 22 includes a loading sub-part 221, a blocking sub-part 222, a first covering sub-part 223, and a second covering sub-part 224; the loading sub-part 221 is installed on the vertical driving part 21, and the loading sub-part 221 has a loading cavity 2211 with an upward opening for loading plastic masterbatch; the blocking sub-part 222 is installed on the loading sub-part 221 and can be separated from the loading sub-part 221, and the blocking sub-part 222 is used to block the opening of the loading cavity 2211; a feeding port 2221 and an air outlet 2222 communicating with the loading cavity 2211 are opened on the blocking sub-part 222; the first covering sub-part 223 and the second covering sub-part 224 are both installed on the blocking sub-part 222, and the first covering sub-part 223 and the second covering sub-part 224 are respectively used to cover the opening of the feeding port 2221 and the opening of the air outlet 2222; the air blowing part 23 can convey hot air into the loading cavity 2211.

[0067] The blocking sub - part 222 is rotatably or slidably connected to the loading sub - part 221.

[0068] The masterbatch can enter the loading cavity 2211 through the feeding port 2221. The loading part 22 can be set as a barrel - shaped structure. Among them, the loading sub - part 221 is a barrel body, and the blocking sub - part 222 is a barrel cover. By moving the barrel cover, the masterbatch can be discharged through the opening of the loading cavity 2211.

[0069] The gas in the loading cavity 2211 can be discharged through the air outlet 2222.

[0070] Optionally, the first covering sub - part 223 and the second covering sub - part 224 can be slidably installed on the blocking sub - part 222.

[0071] Optionally, a guiding member is provided at the feeding port 2221. The guiding member is in a funnel shape and is used to guide the masterbatch to enter the loading cavity 2211 through the feeding port 2221.

[0072] Optionally, a filter screen is provided at the air outlet 2222 to prevent the masterbatch from passing through the air outlet 2222.

[0073] Embodiment 4

[0074] In this embodiment, the air - conveying part 23 includes a connected air - conveying sub - part 231 and a first connecting sub - part 232. The air - conveying sub - part 231 is installed on the vertical driving part 21;

[0075] An air inlet 2212 communicating with the loading cavity 2211 is opened at the top end of the side wall of the loading sub - part 221. The first connecting sub - part 232 is communicated with the air inlet 2212. The air - conveying sub - part 231 can convey hot air to the loading cavity 2211 through the first connecting sub - part 232.

[0076] Optionally, the air - conveying sub - part 231 is set as a hot - air blower; the first connecting sub - part 232 is set as a first air - conveying pipe.

[0077] The air - conveying sub - part 231 conveys hot air to the loading cavity 2211 through the first connecting sub - part 232. The hot air mainly gathers in the area of the loading cavity 2211 that is not filled with the masterbatch. Here, the loading cavity 2211 is divided into a first sub - cavity and a second sub - cavity for explanation. Initially, the masterbatch gathers in the first sub - cavity with a lower height, and the hot air fills the second sub - cavity with a higher height. During the subsequent shaking process, some of the masterbatch enters the second sub - cavity under the action of inertia, and the hot air also enters more areas of the first sub - cavity, increasing the contact area between the masterbatch layer and the hot air, thereby improving the drying effect.

[0078] Embodiment 5

[0079] In this embodiment, a partition member 24 is provided in the loading cavity 2211. There is a cavity between the partition member 24 and the bottom wall of the loading cavity 2211. A plurality of through holes 241 are provided on the partition member 24. The through holes 241 are used to realize the air circulation between the two regions on both sides of the partition member 24;

[0080] An air vent 2213 is provided at the bottom end of the side wall of the loading sub - part 221. The air vent 2213 communicates with the cavity between the partition member 24 and the bottom wall of the loading cavity 2211. The air - blowing part 23 further includes a second communication sub - part 233. The second communication sub - part 233 is connected to the air - blowing sub - part 231. The second communication sub - part 233 communicates with the air vent 2213. The air - blowing sub - part 231 can deliver hot air to the cavity between the partition member 24 and the bottom wall of the loading cavity 2211 through the second communication sub - part 233.

[0081] There is a cavity between the partition member 24 and the bottom wall of the loading cavity 2211. This setting can be achieved by adjusting the sizes of the partition member 24 and the loading cavity 2211 or by installing a support plate on the inner wall of the loading cavity 2211, etc. The partition member 24 can be detachably arranged with respect to the loading cavity 2211.

[0082] The partition member 24 can be regarded as a filter plate for filtering air. The air in the two regions on both sides of the partition member 24 is communicated through the through holes 241, and the masterbatch cannot enter the cavity between the partition member 24 and the bottom wall of the loading cavity 2211.

[0083] Optionally, the second communication sub - part 233 is arranged as a second air duct.

[0084] The air - blowing sub - part 231 delivers hot air to the cavity between the partition member 24 and the bottom wall of the loading cavity 2211 through the second communication sub - part 233. Here, the loading cavity 2211 is sequentially divided into a first region, a second region, and a third region in the vertical direction for illustration. The first region is the cavity between the partition member 24 and the bottom wall of the loading cavity 2211. Initially, the masterbatch is placed in the second region, the hot air is placed in the first region and the third region and penetrates into the second region. During the shaking process, some of the masterbatch enters the third region, and the hot air penetrates more regions of the second region, further increasing the contact area between the masterbatch layer and the hot air, further improving the drying effect, and accelerating the drying progress.

[0085] Embodiment 6

[0086] In this embodiment, a first groove 2214 with an upward - opening and communicating with the loading cavity 2211 is provided on the side wall of the loading sub - part 221. A connecting member 25 is provided in the first groove 2214. The connecting member 25 is connected to the partition member 24, and the connecting member 25 can drive the partition member 24 to move in the vertical direction.

[0087] The connecting member 25 can drive the partitioning member 24 to move in the vertical direction. During this process, the partitioning member 24 moves the masterbatch out of the loading cavity 2211, so that the masterbatch can be collected, replacing the method of rotating the loading part 22 to pour out the masterbatch and other discharging methods, improving the discharging progress, and also avoiding the separation of the first communication sub - part 232 and the second communication sub - part 233 from the loading cavity 2211, without worrying about their detachment.

[0088] The setting of the first groove 2214 can prevent the connecting member 25 from occupying the space inside the loading cavity 2211.

[0089] Here, a discharging method is given for reference as follows: The partitioning member 24 moves the masterbatch out of the loading cavity 2211, pushes the masterbatch to make it fall. A collecting film is provided at the bottom of the supporting assembly 1. The masterbatch falls onto the collecting film. After the processing is completed, the supporting assembly 1 is removed and then the edge of the collecting film is gathered to pack the masterbatch.

[0090] Embodiment 7

[0091] In this embodiment, a second groove 251 is provided at the top end of the connecting member 25, and the opening of the second groove 251 faces the direction away from the outer wall of the loading sub - part 221 of the connecting member 25.

[0092] Optionally, the connecting member 25 fills the first groove 2214. The first groove 2214 can be a rectangular parallelepiped groove, the connecting member 25 can be a rectangular parallelepiped structure, and the size of the connecting member 25 can be adjusted according to the size of the first groove 2214.

[0093] To prevent the masterbatch from entering the first groove 2214, the connecting member 25 can completely fill or nearly completely fill the first groove 2214. At this time, through the setting of the second groove 251, while preventing the connecting member 25 from occupying part of the area of the loading cavity 2211, it provides convenience for the operator to control the connecting member 25. The operator can insert a finger into the second groove 251 to move the connecting member 25.

[0094] Embodiment 8

[0095] In this embodiment, along the vertical direction, the bottom wall of the second groove 251 is inclined downward to prevent the plastic masterbatch from being placed in the second groove 251.

[0096] Along the vertical direction, the second groove 251 has two groove walls. Among them, the one with a higher height is the top wall, and the one with a lower height is the bottom wall. For the convenience of identification, the bottom wall of the second groove 251 is set as the first wall 3.

[0097] The bottom wall of the second groove 251 is inclined downward. When the masterbatch enters the second groove 251 during the shaking process, it will gradually slide out of the second groove 251, avoiding affecting the process of the operator moving the connecting member 25 through the second groove 251.

[0098] Embodiment 9

[0099] In this embodiment, a plurality of drying components 2 are provided, and the drying components 2 are arranged at intervals in the horizontal direction.

[0100] It should be noted that in the present utility model, except for the support component 1, other structures all belong to the drying component 2.

[0101] The setting of the plurality of drying components 2 is mainly to improve the drying effect. For the plastic masterbatch of the same batch, by distributing the masterbatch in the plurality of loading parts 22 of the plurality of drying components 2, the amount of masterbatch in each loading part 22 is relatively small, and the hot air can more easily penetrate the masterbatch layer and uniformly contact the masterbatch, thereby improving the drying effect.

[0102] In addition, the plurality of drying components 2 can also dry the plastic masterbatch of multiple batches in parallel, improving the overall drying efficiency.

[0103] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0104] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. Plastic masterbatch drying device, characterized in that, Comprising: A support component (1); And a drying component (2), installed on the support component (1) for drying plastic masterbatch; Wherein, the drying component (2) includes a vertical driving part (21), a loading part (22), and an air delivery part (23); the vertical driving part (21) is installed on the support component (1); both the loading part (22) and the air delivery part (23) are installed on the vertical driving part (21); the vertical driving part (21) is used to drive the loading part (22) and the air delivery part (23) to move back and forth in the vertical direction; the loading part (22) is used to load plastic masterbatch; the air delivery part (23) is used to convey hot air into the loading part (22) to dry the plastic masterbatch.

2. The plastic masterbatch drying device according to claim 1, characterized in that, The support component (1) includes a connected support part (11) and a moving part (12), the vertical driving part (21) is installed on the support part (11), and the moving part (12) can drive the support part (11) to move.

3. The plastic masterbatch drying device according to claim 1, wherein, The loading part (22) includes a loading sub-part (221), a blocking sub-part (222), a first covering sub-part (223), and a second covering sub-part (224); the loading sub-part (221) is installed on the vertical driving part (21), the loading sub-part (221) has a loading cavity (2211) with an upward opening, and the loading cavity (2211) is used to load plastic masterbatch; the blocking sub-part (222) is installed on the loading sub-part (221) and can be separated from the loading sub-part (221), and the blocking sub-part (222) is used to block the opening of the loading cavity (2211); a feeding port (2221) and an air outlet (2222) communicating with the loading cavity (2211) are provided on the blocking sub-part (222); both the first covering sub-part (223) and the second covering sub-part (224) are installed on the blocking sub-part (222), and the first covering sub-part (223) and the second covering sub-part (224) are respectively used to cover the opening of the feeding port (2221) and the opening of the air outlet (2222); the air delivery part (23) can convey hot air into the loading cavity (2211).

4. The plastic masterbatch drying device according to claim 3, characterized in that, The air delivery part (23) includes a connected air delivery sub-part (231) and a first connection sub-part (232), and the air delivery sub-part (231) is installed on the vertical driving part (21); An air inlet (2212) communicating with the loading cavity (2211) is provided at the top end of the side wall of the loading sub-part (221), the first connection sub-part (232) is communicated with the air inlet (2212), and the air delivery sub-part (231) can convey hot air into the loading cavity (2211) through the first connection sub-part (232).

5. The plastic masterbatch drying device according to claim 4, characterized in that, A partition member (24) is provided in the loading cavity (2211), there is a cavity between the partition member (24) and the bottom wall of the loading cavity (2211), and a plurality of through holes (241) are provided on the partition member (24), and the through holes (241) are used to realize the air flow between the two regions on both sides of the partition member (24); The bottom end of the side wall of the loading sub - part (221) is provided with a ventilation opening (2213), and the ventilation opening (2213) communicates with the cavity between the partition member (24) and the bottom wall of the loading cavity (2211); the air - blowing part (23) further includes a second communication sub - part (233), the second communication sub - part (233) is connected to the air - blowing sub - part (231), the second communication sub - part (233) communicates with the ventilation opening (2213), and the air - blowing sub - part (231) can convey hot air to the cavity between the partition member (24) and the bottom wall of the loading cavity (2211) through the second communication sub - part (233).

6. The plastic masterbatch drying device according to claim 5, characterized in that, On the side wall of the loading sub - part (221), there is a first groove (2214) with an upward - opening and communicating with the loading cavity (2211). A connecting member (25) is arranged in the first groove (2214), the connecting member (25) is connected to the partition member (24), and the connecting member (25) can drive the partition member (24) to move in the vertical direction.

7. The plastic masterbatch drying device according to claim 6, wherein, The top end of the connecting member (25) is provided with a second groove (251), and the opening of the second groove (251) faces the direction away from the outer wall of the loading sub - part (221) of the connecting member (25).

8. The plastic masterbatch drying device according to claim 7, characterized in that, In the vertical direction, the bottom wall of the second groove (251) is inclined downward to prevent the plastic masterbatch from being placed in the second groove (251).

9. The plastic masterbatch drying device according to claim 8, characterized in that, The drying assemblies (2) are provided in multiple numbers, and the drying assemblies (2) are arranged at intervals in the horizontal direction.

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