A cyclone centrifugal drying device for masterbatch after pelletizing

Abstract

The present invention relates to the technical field of drying equipment, and discloses a cyclone centrifugal drying device for masterbatch pelletizing, comprising: a drying mechanism, including an outer shell, an outer drum, a deformed inner drum, a support assembly, a feed hopper and a driving module, wherein the outer drum is rotatably connected to the outer shell, the deformed inner drum is installed in the outer drum and rotates synchronously with the outer drum, the support assembly is connected to the outer shell, the feed hopper is connected to the inner cavity of the deformed inner drum, the driving module is arranged at the bottom of the outer shell, and the driving module is used to drive the outer drum to rotate; a material distribution mechanism is connected to the drying mechanism; and an air-drying mechanism is arranged on one side of the drying mechanism. By using the cyclone centrifugal drying device for masterbatch pelletizing described in the present invention, the rotation speeds of the outer drum and the deformed inner drum can be adjusted by controlling the driving module, and the masterbatch is rotated under the action of the friction force of the deformed inner drum by the supporting action of the support assembly, and the masterbatch is dried, and the drying time is controllable, which greatly improves the drying effect of the masterbatch.

Description

Technical Field

[0001] The invention relates to the field of drying equipment, and more specifically, to a cyclone centrifugal drying device for masterbatch pelletizing. Background Art

[0002] Masterbatch is a granular colorant made of high-concentration pigments or dyes, carrier resins, dispersants, additives, etc. through special processing. It has the characteristics of high concentration, strong tinting power, good dispersibility, and cleanliness. It is mainly used for coloring plastics, packaging, electrical housings, clothing fibers and other products. In the manufacturing process of masterbatch, the masterbatch is usually transported to the centrifugal drying equipment with water flow for drying after pelletizing.

[0003] The existing centrifugal drying device for masterbatch usually drives the masterbatch to spirally rise by rotating the spiral blade, while the water falls freely, and the masterbatch collides with the spiral blade and the cylinder wall during the rising process to further remove the water on the surface of the masterbatch. However, due to the fast rotation speed of the spiral blade (1400 rpm), the masterbatch is quickly discharged from the centrifugal drying device, the drying time of the masterbatch is short, and the drying effect is poor, resulting in a high pressure for the subsequent use of airflow to air-dry the masterbatch, and the overall drying effect is not ideal. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects in the prior art and provide a cyclone centrifugal drying device for masterbatch after pelletizing, which can control the drying time of masterbatch and make the masterbatch dry more fully.

[0005] To achieve the above object, the technical solution of the present invention is to provide a cyclone centrifugal drying device after masterbatch pelletizing, comprising:

[0006] The spin-drying mechanism comprises an outer shell, an outer drum, a deformable inner drum, a support assembly, a feed hopper and a driving module, wherein the outer drum is rotatably connected to the outer shell, a drainage hole is provided through the bottom of the outer drum, the deformable inner drum is installed in the outer drum and rotates synchronously with the outer drum, and a first sieve hole is provided through the deformable inner drum, the support assembly is connected to the outer shell, and the support assembly is provided in the deformable inner drum, the support assembly is used to support masterbatch, the feed hopper is communicated with the inner cavity of the deformable inner drum, the driving module is provided at the bottom of the outer shell, and the driving module is used to drive the outer drum to rotate;

[0007] A material distribution mechanism connected to the drying mechanism, wherein the material distribution mechanism is provided with a water outlet and a material outlet;

[0008] The air-drying mechanism is arranged on one side of the spin-drying mechanism and is used for air-drying the masterbatch after being spun dry.

[0009] By using the cyclone centrifugal drying device for masterbatch pelletizing after the present invention, the outer rotating drum and the deformed inner drum can be driven to rotate by controlling the driving module, and the rotation speeds of the outer rotating drum and the deformed inner drum can be adjusted. The masterbatch is rotated under the action of the friction force of the deformed inner drum through the supporting action of the supporting assembly until the deformed inner drum reaches a certain rotation speed, and the spacing between the supporting assembly and the deformed inner drum is greater than the particle size of the masterbatch. The masterbatch falls from the gap between the supporting assembly and the deformed inner drum, and rotates synchronously with the deformed inner drum to be fully dried. After drying, the masterbatch enters the air-drying mechanism through the material dividing mechanism for further air-drying, which greatly improves the drying effect of the masterbatch.

[0010] Preferably, the driving module includes a connecting frame, a connecting tube, a mounting frame and a driving member, wherein the connecting frame is fixedly mounted on the bottom of the outer drum, the connecting tube is fixedly mounted on the bottom of the outer shell, and the top opening of the connecting tube corresponds to the bottom opening of the outer shell, the mounting frame is fixedly mounted in the connecting tube, the driving member is fixedly mounted on the mounting frame, and the driving member is drivingly connected to the connecting frame. With such a design, the driving member can drive the connecting frame to rotate, thereby driving the outer drum and the deformed inner drum to rotate synchronously.

[0011] Preferably, the support assembly includes a mounting tube, a first support tube and a second support tube, the mounting tube is fixedly sleeved with the outer shell, the first support tube and the second support tube are both trumpet-shaped, and the larger opening of the first support tube and the larger opening of the second support tube are both set downward, the first support tube and the second support tube are both fixedly sleeved on the outer ring of the mounting tube, the second support tube is located below the first support tube, and the outer edges of the first support tube and the second support tube are both at a variable feeding distance from the inner wall of the deformed inner tube. With such a design, by setting the first support tube and the second support tube, even if the masterbatch does not obtain a sufficient rotation speed in the first cavity, it will fall into the second cavity and continue to accelerate, and will not directly enter the distributing mechanism from the deformed inner tube without drying, thereby ensuring the drying effect of the drying mechanism.

[0012] Preferably, the outer drum is provided with at least one rib plate, the rib plate is provided with a plurality of mounting grooves, balls are installed in the plurality of mounting grooves, the balls protrude from the upper and lower surfaces of the rib plate, a support plate rollingly connected to the balls is provided on the inner side of the shell, a limit plate connected to the inner wall of the shell is provided above the support plate, and the spacing between the limit plate and the support plate is slightly larger than the diameter of the balls. Such a design is conducive to improving the stability of the rotation of the outer drum and the deformed inner drum.

[0013] Preferably, the feed hopper includes a guide plate arranged obliquely downward, the guide plate is provided with a second sieve hole, the size of the second sieve hole is smaller than the particle size of the masterbatch, and a water collecting tank is provided below the guide plate. With such a design, most of the water can be removed after the water flow mixed with the masterbatch passes through the guide plate, thereby reducing the drying pressure of the drying mechanism and reducing the impact force on the first support cylinder, which is conducive to increasing the service life of the first support cylinder.

[0014] Preferably, the material distribution mechanism includes a material distribution pipe, a water outlet pipe, a first screen and a first material outlet pipe, the material distribution pipe is connected to the connecting pipe, the water outlet pipe and the first material outlet pipe are both connected to the material distribution pipe, the first material outlet of the first material outlet pipe is arranged in the air-drying mechanism, the material distribution pipe is provided with a socket, the first screen is plugged into the socket, the first screen completely covers the water inlet of the water outlet pipe, the first screen is located directly below the top opening of the material distribution pipe, the material distribution pipe is provided with a material guide surface, the material guide surface is inclined, and the top surface of the first screen is flush with the material guide surface. With such a design, the water separated from the spin-drying mechanism enters the material distribution pipe from the top opening of the material distribution pipe and flows out from the water outlet pipe, the dried masterbatch enters the material distribution pipe from the top opening of the material distribution pipe and enters the air-drying mechanism from the first material outlet pipe, which is convenient for separating the masterbatch and water.

[0015] Preferably, the material distribution mechanism further includes a second material discharging pipe, a rotating plate, a rotating handle and a cylinder, wherein the second material discharging pipe is connected to the material discharging pipe, and the second material discharging pipe is located between the water outlet pipe and the first material discharging pipe, the rotating plate completely covers the connecting port between the second material discharging pipe and the material discharging pipe, the top surface of the rotating plate is flush with the material guide surface, the rotating handle is rotatably connected to the material discharging pipe, and the rotating handle is fixedly sleeved with the rotating plate, the cylinder is fixedly mounted on the material discharging pipe, and the telescopic end of the cylinder is hinged to the rotating handle. Such a design can facilitate the preliminary detection of masterbatches and avoid the waste of raw materials caused by a large number of unqualified masterbatches.

[0016] Preferably, the air-drying mechanism includes a vibrating screen, an air blowing pipe, a first fan, an air suction pipe and a second fan. The vibrating screen is provided with an air-drying chamber and a third discharge pipe. The third discharge pipe is connected to the air-drying chamber. A second screen is provided in the air-drying chamber. The air blowing pipe is connected to the air-drying chamber. The air blowing pipe is located below the second screen, and the air outlet of the air blowing pipe faces the second screen. The air inlet of the air blowing pipe is connected to the exhaust port of the first fan. The air suction pipe is connected to the air-drying chamber. The air suction pipe is located above the second screen, and the air inlet of the air suction pipe faces the second screen. The air outlet of the air suction pipe is connected to the air suction port of the second fan. With such a design, the air blowing pipe can dry the remaining moisture on the surface of the masterbatch during its movement in the vibrating screen, thereby ensuring the drying effect of the masterbatch.

[0017] Preferably, the blowing pipe includes a first main pipe and a plurality of first branch pipes connected to the first main pipe, the plurality of first branch pipes are spaced apart along the length direction of the second screen, and the suction pipe includes a second main pipe and a plurality of second branch pipes connected to the first main pipe, the plurality of second branch pipes are spaced apart along the length direction of the second screen. Such a design can increase the air-drying time of the masterbatch, thereby improving the air-drying effect.

[0018] Preferably, the first main pipe is located on the side of the air-drying chamber away from the third discharge pipe, and the angle between the plurality of first branch pipes arranged in sequence along the direction close to the third discharge pipe and the vertical direction gradually increases, and the second main pipe is located on the side of the air-drying chamber close to the third discharge pipe, and the angle between the plurality of second branch pipes arranged in sequence along the direction close to the third discharge pipe and the vertical direction gradually decreases. With this design, the masterbatch will rotate during the movement, which is conducive to further improving the air-drying effect.

[0019] Preferably, the bottom of the installation tube is sealed, a plurality of first through holes are provided through the side wall of the installation tube, a second through hole is provided through the first support tube, a third through hole is provided through the second support tube, and the exhaust port of the second fan is connected to the top opening of the installation tube extending out of the housing through the third connecting tube. Such a design is conducive to accelerating the spin drying process and improving the spin drying efficiency.

[0020] The beneficial effects of the present invention are:

[0021] 1. By using the cyclone centrifugal drying device for masterbatch pelletizing described in the present invention, the rotation speed of the outer drum and the deformable inner drum can be adjusted by controlling the rotation speed of the driving member, and the masterbatch is rotated under the action of the friction force of the deformable inner drum through the supporting action of the supporting assembly until the deformable inner drum reaches a certain rotation speed, and the distance between the supporting assembly and the deformable inner drum is greater than the particle size of the masterbatch. The masterbatch falls from the gap between the supporting assembly and the deformable inner drum, and rotates synchronously with the deformable inner drum to be fully dried, and the drying time is controllable. Until the drying is sufficient, the masterbatch enters the air-drying mechanism through the material dividing mechanism for further air-drying, which greatly improves the drying effect of the masterbatch.

[0022] 2. By setting a plurality of first branch pipes connected to the first main pipe and spaced along the length direction of the second screen, and a plurality of second branch pipes connected to the second main pipe and spaced along the length direction of the second screen, the air-drying time of the masterbatch can be increased, so that the masterbatch can be dried more fully, and the angle between the plurality of first branch pipes arranged in sequence along the direction close to the third discharge pipe and the vertical direction gradually increases, and the angle between the plurality of second branch pipes arranged in sequence along the direction close to the third discharge pipe and the vertical direction gradually decreases. The masterbatch will rotate during the air-drying process, thereby further improving the air-drying effect.

[0023] 3. The gas sucked from the air-drying chamber by the third fan enters the mounting tube through the third connecting pipe, and enters the inner cavity through the first through hole, the second through hole and the third through hole. When the masterbatch cannot adhere to the inner wall of the deformed inner cylinder and rotate synchronously with the deformed inner cylinder, the airflow can blow the masterbatch to flip and perform a certain amount of air drying. When the masterbatch adheres to the inner wall of the deformed inner cylinder and rotates synchronously with the deformed inner cylinder, the blowing of the airflow is more conducive to the moisture on the surface of the masterbatch being thrown out, thereby accelerating the drying process and improving the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the cyclone centrifugal drying device after the masterbatch is cut;

[0025] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the drying mechanism;

[0026] Figure 3 It is a schematic diagram of the main cross-section of the spin-drying mechanism (excluding the legs, feed hopper, water collection tank and drain pipe);

[0027] Figure 4 It is a three-dimensional structural schematic diagram of the outer drum;

[0028] Figure 5 Schematic diagram of the three-dimensional structure of the connecting pipe;

[0029] Figure 6 It is a three-dimensional structural schematic diagram of the support assembly;

[0030] Figure 7 It is a schematic diagram of the first three-dimensional structure of the feed hopper;

[0031] Figure 8 It is a schematic diagram of the second three-dimensional structure of the feed hopper;

[0032] Fig. 9 It is a three-dimensional structural diagram of the material distribution mechanism (excluding the first screen);

[0033] Fig.10 It is a three-dimensional structural cross-sectional schematic diagram of the material distribution mechanism;

[0034] Fig.11 It is a three-dimensional structural diagram of a rotating plate, a rotating handle and a cylinder;

[0035] Fig.12 is a schematic diagram of a front cross-sectional view of the air-drying mechanism (excluding the third connecting pipe);

[0036] Fig.13 It is a right side sectional schematic diagram of the air-drying mechanism (excluding the third connecting pipe).

[0037] In the figure: 1, drying mechanism; 101, outer shell; 1011, support plate; 1012, limit plate; 102, outer drum; 1021, drainage hole; 1022, rib plate; 1023, mounting groove; 1024, ball bearing; 103, deformed inner drum; 1031, first sieve hole; 1032, inner cavity; 1033, first cavity; 1034, second cavity; 1035, third cavity; 104, support assembly; 1041, mounting tube; 1042, first support cylinder; 1043, second support Cylinder; 1044, first through hole; 1045, second through hole; 1046, third through hole; 105, connecting frame; 106, connecting pipe; 1061, baffle; 1062, drainage chamber; 1063, drainage port; 107, mounting frame; 108, driving member; 109, supporting leg; 110, feed hopper; 1101, guide plate; 1102, second sieve hole; 1103, feed port; 111, chamber; 112, protective shell; 113, supporting frame; 114, water collecting tank; 115, drainage pipe;

[0038] 2. material distribution mechanism; 201. material distribution pipe; 2011. socket; 2012. material guide surface; 202. water outlet pipe; 203. first screen; 204. first material outlet pipe; 205. second material outlet pipe; 206. rotating plate; 207. rotating handle; 208. cylinder;

[0039] 3. Air-drying mechanism; 301. Vibrating screen; 3011. Air-drying chamber; 3012. Third discharge pipe; 3013. Second screen; 3014. Base; 3015. Shell; 3016. Shock-absorbing spring; 3017. Vibrating motor; 302. Air blowing pipe; 3021. First main pipe; 3022. First branch pipe; 303. First fan; 304. Air suction pipe; 3041. Second main pipe; 3042. Second branch pipe; 305. Second fan; 306. First connecting pipe; 307. Second connecting pipe; 308. Third connecting pipe. DETAILED DESCRIPTION

[0040] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the present specification. Various examples may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0041] In order to better understand the present invention, Figure 1-Figure 13 A cyclone centrifugal drying device after masterbatch pelletizing of the present invention is described in detail.

[0042] Embodiment 1:

[0043] like Figure 1-Figure 4 As shown, a cyclone centrifugal drying device for masterbatch after pelletizing comprises:

[0044] The spin-drying mechanism 1 comprises a shell 101, an outer drum 102, a deformed inner drum 103, a support assembly 104, a feed hopper 110 and a driving module, wherein the outer drum 102 is rotatably connected to the shell 101, a drainage hole 1021 is provided through the bottom of the outer drum 102, the deformed inner drum 103 is installed in the outer drum 102 and rotates synchronously with the outer drum 102, and the deformed inner drum 103 is provided with a first sieve hole 1031, the support assembly 104 is connected to the shell 101, and the support assembly 104 is provided in the deformed inner drum 103, the support assembly 104 is used to support the masterbatch, the feed hopper 110 is communicated with the inner cavity 1032 of the deformed inner drum 103, the driving module is provided at the bottom of the shell 101, and the driving module is used to drive the outer drum 102 to rotate;

[0045] The material distribution mechanism 2 is connected to the drying mechanism 1, and the material distribution mechanism 2 is provided with a water outlet and a material outlet;

[0046] The air-drying mechanism 3 is arranged on one side of the spin-drying mechanism 1 and is used for air-drying the masterbatch after being spun dry.

[0047] It should be noted that the deformable inner cylinder 103 can be fixedly installed in the outer rotating cylinder 102 by screws, and the size of the first sieve hole 1031 is always smaller than the particle size of the masterbatch. The masterbatch enters the deformable inner cylinder 103 from the feed hopper 110 and falls on the support assembly 104. A very small amount of water falls along the inner wall of the support assembly 104 and the deformable inner cylinder 103 and flows into the material distribution mechanism 2, and flows out from the water outlet of the material distribution mechanism 2. The driving module drives the outer rotating cylinder 102 and the deformable inner cylinder 103 to gradually accelerate the rotation synchronously. Due to the effect of the centripetal force, the material of the deformable inner cylinder 103 is stretched, resulting in expansion and deformation. The faster the rotation speed, the greater the expansion and deformation degree of the deformable inner cylinder 103, and the closer the deformable inner cylinder 103 is to the inner wall of the outer rotating cylinder 102. At the same time, the deformable inner cylinder 103 contacts with the masterbatch when rotating, providing friction to the masterbatch, driving the masterbatch to rotate in the deformable inner cylinder 103;

[0048] When the rotation speed of the deformable inner cylinder 103 is large enough, the distance between the support assembly 104 and the inner wall of the deformable inner cylinder 103 is larger than the particle size of the masterbatch, and the masterbatch falls from the gap between the support assembly 104 and the inner wall of the deformable inner cylinder 103 to the bottom of the inner cavity 1032. At this time, the combined force of the deformable inner cylinder 103 on the masterbatch is sufficient to provide the centripetal force for the masterbatch to make a circular motion with the deformable inner cylinder 103, and the masterbatch rotates synchronously with the deformable inner cylinder 103. Then, the driving module drives the outer rotating cylinder 102 and the deformable inner cylinder 103 to rotate at a uniform speed. During the process of the masterbatch adhering to the inner wall of the deformable inner cylinder 103 and rotating therewith, the moisture on the surface of the masterbatch is thrown out, and the thrown-out moisture enters the chamber 111 between the outer rotating cylinder 102 and the deformable inner cylinder 103 through the first sieve hole 1031, and is discharged through the drainage hole 1021;

[0049] After being fully spun, the driving module drives the outer rotating drum 102 and the deformable inner drum 103 to gradually slow down their rotation. When the rotation speed is reduced to a certain level, the combined force of the deformable inner drum 103 on the masterbatch is insufficient to provide the centripetal force for the masterbatch to make a circular motion with the deformable inner drum 103. The masterbatch detaches from the inner wall of the deformable inner drum 103, falls into the dividing mechanism 2, and enters the air-drying mechanism 3 through the discharge port of the dividing mechanism 2 for air-drying.

[0050] In this embodiment, the outer rotating cylinder 102 and the deformable inner cylinder 103 are both waist drum-shaped. The deformable inner cylinder 103 is made of rubber. Four legs 109 are fixedly installed on the bottom of the outer shell 101. A support frame 113 is arranged below the legs 109. The four legs 109 are fixedly installed on the support frame 113.

[0051] By using a cyclone centrifugal drying device for masterbatch pelletizing after the present invention, the outer rotating drum 102 and the deformed inner drum 103 can be driven to rotate by controlling the driving module, and the rotation speeds of the outer rotating drum 102 and the deformed inner drum 103 can be adjusted. The masterbatch is rotated under the action of the friction force of the deformed inner drum 103 through the supporting effect of the supporting component 104 until the deformed inner drum 103 reaches a certain rotation speed, and the spacing between the supporting component 104 and the deformed inner drum 103 is greater than the particle size of the masterbatch. The masterbatch falls from the gap between the supporting component 104 and the deformed inner drum 103, and rotates synchronously with the deformed inner drum 103 to be fully dried. After the drying is completed, the masterbatch enters the air-drying mechanism 3 through the material dividing mechanism 2 for further air-drying, which greatly improves the drying effect of the masterbatch.

[0052] Embodiment 2:

[0053] As an optimization of Example 1, Figure 2 , Figure 3 and Figure 5 As shown, the driving module includes a connecting frame 105, a connecting tube 106, a mounting frame 107 and a driving member 108. The connecting frame 105 is fixedly installed at the bottom of the outer drum 102, the connecting tube 106 is fixedly installed at the bottom of the outer shell 101, and the top opening of the connecting tube 106 corresponds to the bottom opening of the outer shell 101, the mounting frame 107 is fixedly installed in the connecting tube 106, the driving member 108 is fixedly installed on the mounting frame 107, and the driving member 108 is drivingly connected to the connecting frame 105.

[0054] It should be noted that there is an opening between the connecting frame 105 and the outer drum 102 for the masterbatch to fall, and there is an opening between the mounting frame 107 and the connecting tube 106 for the masterbatch to fall. The connecting frame 105 and the mounting frame 107 will not hinder the falling of the masterbatch. The driving member 108 drives the connecting frame 105 to rotate, thereby driving the outer drum 102 and the deformed inner drum 103 to rotate synchronously.

[0055] In this embodiment, the driving member 108 is a servo motor, and a protective shell 112 is installed on the outside of the servo motor. The protective shell 112 is fixedly mounted on the mounting frame 107, and the servo motor is fixedly mounted in the protective shell 112 to prevent water droplets from entering the servo motor and thus affecting the normal operation of the servo motor. The output end of the servo motor extending out of the protective shell 112 is drivingly connected to the connecting frame 105;

[0056] A baffle 1061 is provided on the inner side of the connecting pipe 106, and the baffle 1061 plays a blocking role, and is used to prevent the water thrown off the masterbatch from entering the distributing mechanism 2 through the drainage hole 1021 and the connecting pipe 106. The baffle 1061, the tube wall of the connecting pipe 106, and the bottom wall of the outer drum 102 enclose a drainage chamber 1062, and the drainage chamber 1062 is located below the drainage hole 1021. The connecting pipe 106 is penetrated by a drainage port 1063, and the drainage port 1063 connects the drainage chamber 1062 with the outside world. The water flowing out of the drainage hole 1021 enters the drainage chamber 1062 and finally flows out from the drainage port 1063. According to actual conditions, a pipe can be installed at the drainage port 1063 on the outer wall of the connecting pipe 106 to facilitate diversion.

[0057] Embodiment 3:

[0058] As an optimization of Example 2, Figure 2 , Figure 3 and Figure 6 As shown, the support assembly 104 includes a mounting tube 1041, a first support tube 1042 and a second support tube 1043. The mounting tube 1041 is fixedly sleeved with the outer shell 101, the first support tube 1042 and the second support tube 1043 are both trumpet-shaped, and the larger opening of the first support tube 1042 and the larger opening of the second support tube 1043 are both set downward, the first support tube 1042 and the second support tube 1043 are both fixedly sleeved on the outer ring of the mounting tube 1041, and the second support tube 1043 is located below the first support tube 1042, and the outer edges of the first support tube 1042 and the second support tube 1043 and the inner wall of the deformable inner tube 103 are both variable cutting distances.

[0059] It should be noted that the mounting tube 1041 is fixedly mounted on the housing 101, and the first support tube 1042 and the second support tube 1043 separate the inner cavity 1032 into a first cavity 1033, a second cavity 1034 and a third cavity 1035 from top to bottom. Since the first support tube 1042 and the second support tube 1043 are both trumpet-shaped, and the larger opening of the first support tube 1042 and the larger opening of the second support tube 1043 are both set downward, after the masterbatch falls on the first support tube 1042 or the second support tube 1043, the masterbatch will roll (or slide) along the surface of the first support tube 1042 or the second support tube 1043 to the edge, and contact with the inner wall of the deformable inner tube 103, so as to drive the masterbatch to rotate during the rotation of the deformable inner tube 103;

[0060] The rotation speed of the masterbatch is set to n, the first preset rotation speed n1, the second preset rotation speed n2 and the third preset rotation speed n3 are set, and n1<n2<n3, the particle size of the masterbatch is set to d, the distance between the first support cylinder 1042 and the deformed inner cylinder 103 is d1, the distance between the second support cylinder 1043 and the deformed inner cylinder 103 is d2, and d2<d1, and the drying process includes the following stages:

[0061] The first stage: the masterbatch enters the first cavity 1033 through the feed hopper 110 and falls on the first support cylinder 1042. The driving member 108 drives the outer rotating cylinder 102 and the deformed inner cylinder 103 to gradually accelerate the rotation until the rotation speed reaches n1. At this time, n<n1, d1=d, d2<d. During this process, the deformed inner cylinder 103 gradually expands and becomes larger under the action of centripetal force, but the masterbatch cannot fall from the gap between the first support cylinder 1042 and the deformed inner cylinder 103. The rotation of the deformed inner cylinder 103 provides friction to the masterbatch, accelerates the masterbatch, drives the masterbatch to rotate, and makes the masterbatch have a certain rotation speed, but the combined force of the deformed inner cylinder 103 on the masterbatch is not enough to provide the centripetal force for the masterbatch to make a circular motion with the deformed inner cylinder 103 in the first cavity 1033;

[0062] The second stage: the driving member 108 drives the outer rotating cylinder 102 and the deformed inner cylinder 103 to continue to accelerate the rotation until the rotation speed reaches n2, at which time n<n2, d1>d, d2=d. During this process, the deformed inner cylinder 103 continues to expand and grow under the action of the centripetal force, and the masterbatch falls from the gap between the first supporting cylinder 1042 and the deformed inner cylinder 103 into the second cavity 1034, but the masterbatch cannot fall from the gap between the second supporting cylinder 1043 and the deformed inner cylinder 103. The deformed inner cylinder 103 continues to provide friction to the masterbatch, which further accelerates the masterbatch, but the combined force of the deformed inner cylinder 103 on the masterbatch is not enough to provide the centripetal force for the masterbatch to make a circular motion in the second cavity 1034 with the deformed inner cylinder 103;

[0063] The third stage: the driving member 108 drives the outer rotating cylinder 102 and the deformed inner cylinder 103 to continue to accelerate the rotation until the rotation speed reaches n3, and then maintains the rotation speed of n3 to perform uniform circular motion. At this time, n= n3, d1>d, d2>d. During this process, the deformed inner cylinder 103 continues to expand and grow under the action of centripetal force, and then remains unchanged. The masterbatch falls from the gap between the second supporting cylinder 1043 and the deformed inner cylinder 103 into the third cavity 1035. The combined force of the deformed inner cylinder 103 on the masterbatch is sufficient to provide the masterbatch with the centripetal force for the masterbatch to perform circular motion in the third cavity 1035 with the deformed inner cylinder 103. The masterbatch adheres to the inner wall of the deformed inner cylinder 103 and rotates synchronously with the deformed inner cylinder 103.

[0064] The fourth stage: the driving member 108 drives the outer rotating cylinder 102 and the deformed inner cylinder 103 to decelerate the rotation until the rotation speed drops to n1, and then maintains the rotation speed of n1 to perform uniform circular motion. At this time, n<n1, d1=d, d2<d. During this process, the deformed inner cylinder 103 shrinks and becomes smaller under the action of centripetal force, and then remains unchanged. The combined force of the deformed inner cylinder 103 on the masterbatch is not sufficient to provide the centripetal force for the masterbatch to perform circular motion with the deformed inner cylinder 103 in the third cavity 1035. The masterbatch falls off the inner wall of the deformed inner cylinder 103 and falls from the opening below the third cavity 1035, falls into the distributing mechanism 2 through the connecting pipe 106, and finally falls into the air-drying mechanism 3 from the discharge port of the distributing mechanism 2.

[0065] Before the rotation speed of the outer drum 102 and the deformed inner drum 103 drops to n1, the masterbatch has begun to fall off the inner wall of the deformed inner drum 103. When the rotation speed of the outer drum 102 and the deformed inner drum 103 drops to n1, all the masterbatch in the deformed inner drum 103 enters the air-drying mechanism 3 through the material distribution mechanism 2, and can continue to feed into the feed hopper 110. After the feeding is completed, the process from the second stage to the fourth stage is repeated, and the masterbatch can be dried in batches;

[0066] Multiple support cylinders can be installed on the mounting tube 1041 according to actual conditions, and the spacing between the multiple support cylinders and the deformable inner cylinder 103 is set accordingly according to the position of each support cylinder and the spin-drying process to obtain a better spin-drying effect.

[0067] By providing the first supporting cylinder 1042 and the second supporting cylinder 1043, even if the masterbatch does not obtain a sufficient rotation speed in the first cavity 1033, it will fall into the second cavity 1034 and continue to accelerate, and will not directly enter the distributing mechanism 2 from the deformable inner cylinder 103 without spinning, thereby ensuring the spinning effect of the spinning mechanism 1.

[0068] Embodiment 4:

[0069] As an optimization of Example 3, Figure 3 and Figure 4 As shown, the outer drum 102 is provided with at least one rib 1022, and the rib 1022 is provided with a plurality of mounting grooves 1023. Balls 1024 are installed in the plurality of mounting grooves 1023. The balls 1024 protrude from the upper and lower surfaces of the rib 1022. A support plate 1011 rollingly connected to the balls 1024 is provided on the inner side of the outer shell 101. A limiting plate 1012 connected to the inner wall of the outer shell 101 is provided above the support plate 1011, and the distance between the limiting plate 1012 and the support plate 1011 is slightly larger than the diameter of the balls 1024.

[0070] It should be noted that the ribs 1022, the support plates 1011 and the limit plates 1012 are all annular plates. When the outer drum 102 is rotating, the balls 1024 roll on the upper surface of the support plates 1011. The outer shell 101 provides support to the ribs 1022 of the outer drum 102 through the support plates 1011. At the same time, the friction between the support plates 1011 and the ribs 1022 is reduced through the balls 1024. The spacing between the limit plates 1012 and the support plates 1011 is slightly larger than the diameter of the balls 1024. During the normal rotation of the outer drum 102, the balls 1024 do not touch the limit plates 1012. When the rotation of the outer drum 102 is unstable, such as when the outer drum 102 vibrates in the vertical direction, the limit plates 1012 can play a limiting role to reduce the influence of the vibration on the rotation of the outer drum 102, thereby improving the rotation stability of the outer drum 102 and the deformed inner drum 103.

[0071] In this embodiment, two ribs 1022 , two support plates 1011 and two limit plates 1012 are each provided, and the ribs 1022 are rotationally fitted with the inner wall of the outer shell 101 , further ensuring the stable rotation of the outer drum 102 .

[0072] Embodiment 5:

[0073] As an optimization of Example 4, Figure 2 , Figure 7 and Figure 8 As shown, the feed hopper 110 includes a guide plate 1101 arranged obliquely downward, and a second sieve hole 1102 is provided through the guide plate 1101. The size of the second sieve hole 1102 is smaller than the particle size of the masterbatch, and a water collecting tank 114 is provided below the guide plate 1101.

[0074] It should be noted that the water mixed with the masterbatch falls from the end away from the bottom opening of the feed hopper 110 to the top of the guide plate 1101, and flows obliquely downward along the guide plate 1101. During this process, most of the water flows through the second sieve hole 1102 and falls into the sump 114, which is beneficial to reducing the drying pressure of the drying mechanism 1. The masterbatch with moisture attached to the surface falls from the opening at the bottom of the feed hopper 110 to the first support cylinder 1042 in the deformable inner cylinder 103. The impact force of the masterbatch on the first support cylinder 1042 is relatively small. If most of the water flows into the deformable inner cylinder 103 together with the masterbatch, the impact force of the first support cylinder 1042 will increase, thereby reducing the service life of the first support cylinder 1042.

[0075] In this embodiment, the top of the feed hopper 110 is closed with a feed port 1103, and the feed port 1103 is located at one end of the feed hopper 110 away from its bottom opening. The water mixed with the masterbatch enters the feed hopper 110 from the feed port 1103 through an external pipe. The water collection tank 114 is arranged on the top of the outer shell 101, and the water collection tank 114 is connected to a drain pipe 115 to facilitate timely discharge of the water in the water collection tank 114.

[0076] Embodiment 6:

[0077] As an optimization of Example 5, Figure 1 , Fig. 9 and Fig.10 As shown, the material distribution mechanism 2 includes a material distribution pipe 201, a water outlet pipe 202, a first screen 203 and a first discharge pipe 204. The material distribution pipe 201 is connected to the connecting pipe 106, and the water outlet pipe 202 and the first discharge pipe 204 are both connected to the material distribution pipe 201. The first discharge port of the first discharge pipe 204 is arranged in the air-drying mechanism 3. The material distribution pipe 201 is penetrated by a socket 2011, and the first screen 203 is plugged into the socket 2011. The first screen 203 completely covers the water inlet of the water outlet pipe 202. The first screen 203 is located directly below the top opening of the material distribution pipe 201. The material distribution pipe 201 is provided with a material guide surface 2012, and the material guide surface 2012 is inclined. The top surface of the first screen 203 is flush with the material guide surface 2012.

[0078] It should be noted that the opening size at the top of the distribution pipe 201 is not smaller than the opening size at the bottom of the connecting pipe 106, and the mesh size of the first screen 203 is smaller than the particle size of the masterbatch. In the first to third stages of the spin-drying process, a small amount of water that falls along the inner wall of the support assembly 104 and the deformed inner cylinder 103 and flows into the distribution pipe 201 through the connecting pipe 106 will fall on the first screen 203, pass through the mesh of the first screen 203, enter the water outlet pipe 202, and flow out from the water outlet of the water outlet pipe 202. In the fourth stage of the spin-drying process, after the masterbatch enters the distribution pipe 201 from the spin-drying mechanism 1, it will also fall on the first screen 203, and roll along the top surface of the first screen 203 to the guide surface 2012, and then continue to roll along the guide surface 2012 and finally fall into the air-drying mechanism 3 from the first discharge port of the first discharge pipe 204.

[0079] Embodiment 7:

[0080] As an optimization of Example 6, Figure 9-11As shown, the dispensing mechanism 2 also includes a second dispensing pipe 205, a rotating plate 206, a rotating handle 207 and a cylinder 208. The second dispensing pipe 205 is connected to the dispensing pipe 201, and the second dispensing pipe 205 is located between the water outlet pipe 202 and the first dispensing pipe 204. The rotating plate 206 completely covers the connecting port between the second dispensing pipe 205 and the dispensing pipe 201. The top surface of the rotating plate 206 is flush with the material guiding surface 2012. The rotating handle 207 is rotatably connected to the dispensing pipe 201, and the rotating handle 207 is fixedly sleeved with the rotating plate 206. The cylinder 208 is fixedly installed on the dispensing pipe 201, and the telescopic end of the cylinder 208 is hinged to the rotating handle 207.

[0081] It should be noted that the telescopic end of the cylinder 208 is extended, pushing the rotating handle 207 to rotate, thereby driving the rotating plate 206 to rotate until the rotating plate 206 abuts against the top inner wall of the distribution pipe 201. At this time, the masterbatch entering the distribution pipe 201 cannot enter the first discharge pipe 204, and the communication port between the second discharge pipe 205 and the distribution pipe 201 is opened, and the masterbatch falls from the second discharge pipe 205, so as to detect whether the dried masterbatch is qualified;

[0082] The unqualified masterbatch may be caused by a variety of reasons, such as the inappropriate blade speed during the pelletizing process, resulting in the masterbatch size not meeting the requirements. By detecting the masterbatch falling from the second discharge pipe 205, it is easy to find out the reason for the unqualified masterbatch, so as to adjust and stop the loss in time, and avoid a large number of unqualified masterbatches, resulting in a waste of raw materials.

[0083] When the detected masterbatch is qualified, the telescopic end of the cylinder 208 shortens, pulling the handle 207 to rotate, thereby driving the rotating plate 206 to rotate until the rotating plate 206 completely covers the connecting port between the second discharge pipe 205 and the distribution pipe 201. At this time, the masterbatch entering the distribution pipe 201 cannot enter the second discharge pipe 205, and the top surface of the rotating plate 206 is flush with the guide surface 2012. The masterbatch enters the first discharge pipe 204 and falls into the air-drying mechanism 3.

[0084] Embodiment 8:

[0085] As an optimization of Example 7, Figure 1 , Fig.12 and Fig.13As shown, the air drying mechanism 3 includes a vibrating screen 301, an air blowing pipe 302, a first fan 303, an air suction pipe 304 and a second fan 305. The vibrating screen 301 is provided with an air drying chamber 3011 and a third discharge pipe 3012. The third discharge pipe 3012 is connected to the air drying chamber 3011. A second screen 3013 is provided in the air drying chamber 3011. The air blowing pipe 302 is connected to the air drying chamber 3011. The air blowing pipe 302 is located at the second discharge pipe 3012. The air inlet of the air pipe 302 is connected to the exhaust port of the first fan 303, the air intake pipe 304 is connected to the air drying chamber 3011, the air intake pipe 304 is located above the second screen 3013, and the air inlet of the air intake pipe 304 is facing the second screen 3013, and the air outlet of the air intake pipe 304 is connected to the air intake port of the second fan 305.

[0086] It should be noted that the aperture of the second sieve 3013 is smaller than the particle size of the masterbatch. After the masterbatch enters the vibrating screen 301 from the first discharge pipe 204, it falls on the second sieve 3013. During the vibration of the vibrating screen 301, the masterbatch will be driven to move on the second sieve 3013 toward the third discharge pipe 3012. During this process, the air flow blown out by the blowing pipe 302 passes through the sieve holes of the second sieve 3013 to dry the remaining moisture on the surface of the masterbatch, and the water vapor in the drying mechanism 1 will also enter the air-drying chamber 3011 through the distributing mechanism 2. The suction pipe 304 absorbs the water vapor in the air-drying chamber 3011 to reduce the humidity in the air-drying chamber 3011 and prevent the water vapor from continuing to adhere to the surface of the masterbatch after liquefaction on the surface of the masterbatch, resulting in a reduction in the air-drying effect. The masterbatch moving on the second sieve 3013 eventually enters the third discharge pipe 3012 and is discharged.

[0087] In this embodiment, the vibrating screen 301 also includes a base 3014, a shell 3015, a shock-absorbing spring 3016 and a vibration motor 3017. The shell 3015 is installed on the base 3014 through the shock-absorbing spring 3016, and the vibration motor 3017 is installed on the shell 3015. The air-drying chamber 3011 is the internal space of the shell 3015. The vibration of the vibration motor 3017 drives the shell 3015 and the screen to vibrate, thereby driving the masterbatch on the second screen 3013 to move toward the direction close to the third discharge pipe 3012; the first discharge pipe 204 is a flexible pipe to reduce the impact of the vibration of the vibrating screen 301 on the first discharge pipe 204.

[0088] Embodiment 9:

[0089] As an optimization of Example 8, Fig.12 and Fig.13As shown, the blowing pipe 302 includes a first main pipe 3021 and a plurality of first branch pipes 3022 connected to the first main pipe 3021, and the plurality of first branch pipes 3022 are distributed at intervals along the length direction of the second screen 3013. The suction pipe 304 includes a second main pipe 3041 and a plurality of second branch pipes 3042 connected to the first main pipe 3021, and the plurality of second branch pipes 3042 are distributed at intervals along the length direction of the second screen 3013.

[0090] It should be noted that the length directions of the first main pipe 3021, the second main pipe 3041 and the second screen 3013 are consistent. The airflow sucked in by the first fan 303 is blown out through the blowing pipe 302. By setting the first main pipe 3021 and multiple first branch pipes 3022, it is beneficial to increase the air-drying time of the masterbatch, thereby improving the air-drying effect. The second fan 305 absorbs the water vapor in the air-drying chamber 3011 through the suction pipe 304. By setting the second main pipe 3041 and multiple second branch pipes 3042, it is convenient to absorb the water vapor in various places in the air-drying chamber 3011. The multiple second branch pipes 3042 can also increase the air flow around the masterbatch while sucking air, which is beneficial to improving the air-drying effect.

[0091] In this embodiment, the exhaust port of the first fan 303 is connected to the first main pipe 3021 through the first connecting pipe 306, and the diameter of the pipe opening of the first branch pipe 3022 that is closer to the first connecting pipe 306 is smaller, so as to ensure that the air output of multiple first branch pipes 3022 is relatively uniform, thereby improving the air-drying effect. The air intake port of the second fan 305 is connected to the second main pipe 3041 through the second connecting pipe 307, and the diameter of the pipe opening of the second branch pipe 3042 that is closer to the second connecting pipe 307 is smaller, so as to ensure that the air intake of multiple second branch pipes 3042 is relatively uniform, so as to absorb the water vapor from various places in the air-drying chamber 3011.

[0092] Embodiment 10:

[0093] As an optimization of Example 9, Fig.12 and Fig.13 As shown, the first main pipe 3021 is located on the side of the air-drying chamber 3011 away from the third discharge pipe 3012, and the angles between the multiple first branch pipes 3022 arranged in sequence along the direction close to the third discharge pipe 3012 and the vertical direction gradually increase; the second main pipe 3041 is located on the side of the air-drying chamber 3011 close to the third discharge pipe 3012, and the angles between the multiple second branch pipes 3042 arranged in sequence along the direction close to the third discharge pipe 3012 and the vertical direction gradually decrease.

[0094] It should be noted that the first main pipe 3021 is located on the side of the air-drying chamber 3011 away from the third discharge pipe 3012, and the angle between the plurality of first branch pipes 3022 arranged in sequence in the direction close to the third discharge pipe 3012 and the vertical direction gradually increases. The plurality of first branch pipes 3022 can blow the masterbatch toward the direction close to the third discharge pipe 3012 to facilitate the discharge of the masterbatch. Moreover, since at least part of the first branch pipes 3022 is inclined, the masterbatch will rotate under the action of the oblique airflow during its movement, thereby increasing the contact area between the masterbatch and the airflow. The masterbatch can be air-dried more evenly, and the air-drying effect can be further improved. The second main pipe 3041 is located on the side of the air-drying chamber 3011 close to the third discharge pipe 3012. The angles between the multiple second branch pipes 3042 arranged in sequence in the direction close to the third discharge pipe 3012 and the vertical direction gradually decrease. The air suction of the multiple second branch pipes 3042 can also prompt the masterbatch to move toward the direction close to the third discharge pipe 3012. The multiple inclined second branch pipes 3042 cooperate with the multiple inclined first branch pipes 3022, so that the masterbatch is easier to rotate and the air-drying effect is greatly improved.

[0095] Embodiment 11:

[0096] As an optimization of Example 10, Figure 1 , Figure 3 and Figure 6 As shown, the bottom of the mounting tube 1041 is sealed, a plurality of first through holes 1044 are penetrated through the side wall of the mounting tube 1041, a second through hole 1045 is penetrated through the first support tube 1042, a third through hole 1046 is penetrated through the second support tube 1043, and the exhaust port of the second fan 305 is connected to the top opening of the mounting tube 1041 extending out of the outer casing 101 through the third connecting pipe 308.

[0097] It should be noted that the gas sucked in by the third fan from the air-drying chamber 3011 enters the mounting tube 1041 through the third connecting tube 308, and enters the inner cavity 1032 through the first through hole 1044, the second through hole 1045 and the third through hole 1046. When the masterbatch cannot adhere to the inner wall of the deformed inner cylinder 103 and rotate synchronously with the deformed inner cylinder 103, the airflow can blow the masterbatch to flip and perform a certain amount of air drying. When the masterbatch adheres to the inner wall of the deformed inner cylinder 103 and rotates synchronously with the deformed inner cylinder 103, the blowing of the airflow is more conducive to the moisture on the surface of the masterbatch being thrown out, thereby accelerating the drying process and improving the drying efficiency.

[0098] The embodiments of the invention are described above in conjunction with the accompanying drawings, but the present embodiment is not limited to the above-mentioned specific implementation modes, which are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can make many forms without departing from the purpose of the present embodiment and the scope of protection of the claims, all of which are within the protection of the present embodiment.

Claims

1. A cyclone centrifugal drying device for masterbatch pelletizing, characterized in that: include: The spin drying mechanism (1) comprises an outer shell (101), an outer drum (102), a deformable inner drum (103), a support assembly (104), a feed hopper (110) and a drive module, wherein the outer drum (102) is rotatably connected to the outer shell (101), a drainage hole (1021) is provided through the bottom of the outer drum (102), the deformable inner drum (103) is installed in the outer drum (102) and rotates synchronously with the outer drum (102), and the deformable inner drum (103) is provided through the bottom of the outer drum (102). A first sieve hole (1031) is provided through the outer shell (101), the support component (104) is connected to the outer shell (101), and the support component (104) is arranged in the deformable inner cylinder (103), the support component (104) is used to support the masterbatch, the feed hopper (110) is communicated with the inner cavity (1032) of the deformable inner cylinder (103), the drive module is arranged at the bottom of the outer shell (101), and the drive module is used to drive the outer rotating cylinder (102) to rotate; The support assembly (104) comprises a mounting tube (1041), a first support tube (1042) and a second support tube (1043); the mounting tube (1041) is fixedly sleeved with the outer shell (101); the first support tube (1042) and the second support tube (1043) are both trumpet-shaped; the larger opening of the first support tube (1042) and the larger opening of the second support tube (1043) are both arranged downward; the first support tube (1042) and the second support tube (1043) are fixedly sleeved on the outer ring of the mounting tube (1041); the second support tube (1043) is located below the first support tube (1042); and the outer edges of the first support tube (1042) and the second support tube (1043) are provided with a variable blanking spacing from the inner wall of the deformable inner tube (103); A material distribution mechanism (2) connected to the drying mechanism (1), the material distribution mechanism (2) being provided with a water outlet and a material outlet; The air-drying mechanism (3) is arranged on one side of the spin-drying mechanism (1) and is used to air-dry the masterbatch after being spun; the masterbatch is separated from the inner wall of the deformable inner cylinder (103), falls into the material distribution mechanism (2), and enters the air-drying mechanism (3) through the material outlet of the material distribution mechanism (2) for air-drying.

2. The cyclone centrifugal drying device for masterbatch after pelletizing according to claim 1, characterized in that: The driving module comprises a connecting frame (105), a connecting tube (106), a mounting frame (107) and a driving member (108); the connecting frame (105) is fixedly mounted on the bottom of the outer drum (102); the connecting tube (106) is fixedly mounted on the bottom of the outer shell (101), and a top opening of the connecting tube (106) corresponds to a bottom opening of the outer shell (101); the mounting frame (107) is fixedly mounted in the connecting tube (106); the driving member (108) is fixedly mounted on the mounting frame (107), and the driving member (108) is drivingly connected to the connecting frame (105).

3. The cyclone centrifugal drying device after masterbatch pelletizing according to claim 1 is characterized in that: The outer drum (102) is provided with at least one rib plate (1022), the rib plate (1022) is provided with a plurality of mounting grooves (1023), a ball (1024) is installed in each of the plurality of mounting grooves (1023), the ball (1024) protrudes from the upper surface and the lower surface of the rib plate (1022), a support plate (1011) rollingly connected to the ball (1024) is provided on the inner side of the outer shell (101), a limit plate (1012) connected to the inner wall of the outer shell (101) is provided above the support plate (1011), and the distance between the limit plate (1012) and the support plate (1011) is slightly larger than the diameter of the ball (1024).

4. The cyclone centrifugal drying device after masterbatch pelletizing according to claim 1 is characterized in that: The feed hopper (110) comprises a material guide plate (1101) arranged obliquely downward, the material guide plate (1101) being provided with a second sieve hole (1102) extending therethrough, the size of the second sieve hole (1102) being smaller than the particle size of the masterbatch, and a water collecting trough (114) being provided below the material guide plate (1101).

5. The cyclone centrifugal drying device for masterbatch after pelletizing according to claim 2, characterized in that: The material distribution mechanism (2) comprises a material distribution pipe (201), a water outlet pipe (202), a first screen (203) and a first discharge pipe (204); the material distribution pipe (201) is in communication with the connecting pipe (106); the water outlet pipe (202) and the first discharge pipe (204) are both in communication with the material distribution pipe (201); a first discharge port of the first discharge pipe (204) is arranged in the air-drying mechanism (3); and a socket (203) is provided through the material distribution pipe (201). 2011), the first screen (203) is plugged into the socket (2011), the first screen (203) completely covers the water inlet of the water outlet pipe (202), the first screen (203) is located directly below the top opening of the distribution pipe (201), the distribution pipe (201) is provided with a material guiding surface (2012), the material guiding surface (2012) is inclined, and the top surface of the first screen (203) is flush with the material guiding surface (2012).

6. The cyclone centrifugal drying device after masterbatch pelletizing according to claim 5 is characterized in that: The material distribution mechanism (2) further comprises a second material distribution pipe (205), a rotating plate (206), a rotating handle (207) and a cylinder (208); the second material distribution pipe (205) is connected to the material distribution pipe (201), and the second material distribution pipe (205) is located between the water outlet pipe (202) and the first material distribution pipe (204); the rotating plate (206) completely covers the connecting opening between the second material distribution pipe (205) and the material distribution pipe (201); the top surface of the rotating plate (206) is flush with the material guide surface (2012); the rotating handle (207) is rotatably connected to the material distribution pipe (201), and the rotating handle (207) is fixedly sleeved with the rotating plate (206); the cylinder (208) is fixedly mounted on the material distribution pipe (201), and the telescopic end of the cylinder (208) is hinged to the rotating handle (207).

7. The cyclone centrifugal drying device for masterbatch after pelletizing according to claim 1, characterized in that: The air drying mechanism (3) comprises a vibrating screen (301), an air blowing pipe (302), a first fan (303), an air suction pipe (304) and a second fan (305); the vibrating screen (301) is provided with an air drying chamber (3011) and a third discharge pipe (3012); the third discharge pipe (3012) is in communication with the air drying chamber (3011); a second screen (3013) is provided in the air drying chamber (3011); the air blowing pipe (302) is in communication with the air drying chamber (3011); the air blowing pipe (302) is located at the second screen; The air outlet of the air blowing pipe (302) faces the second screen (3013), the air inlet of the air blowing pipe (302) is connected to the exhaust port of the first fan (303), the air suction pipe (304) is connected to the air drying chamber (3011), the air suction pipe (304) is located above the second screen (3013), the air inlet of the air suction pipe (304) faces the second screen (3013), and the air outlet of the air suction pipe (304) is connected to the air suction port of the second fan (305).

8. The cyclone centrifugal drying device for masterbatch after pelletizing according to claim 7, characterized in that: The air blowing pipe (302) comprises a first main pipe (3021) and a plurality of first branch pipes (3022) connected to the first main pipe (3021), wherein the plurality of first branch pipes (3022) are distributed at intervals along the length direction of the second screen (3013); the air suction pipe (304) comprises a second main pipe (3041) and a plurality of second branch pipes (3042) connected to the first main pipe (3021), wherein the plurality of second branch pipes (3042) are distributed at intervals along the length direction of the second screen (3013).

9. The cyclone centrifugal drying device after masterbatch pelletizing according to claim 8, characterized in that: The first main pipe (3021) is located on a side of the air-drying chamber (3011) away from the third discharge pipe (3012), and the angles between the plurality of first branch pipes (3022) arranged in sequence in a direction close to the third discharge pipe (3012) and the vertical direction gradually increase; the second main pipe (3041) is located on a side of the air-drying chamber (3011) close to the third discharge pipe (3012), and the angles between the plurality of second branch pipes (3042) arranged in sequence in a direction close to the third discharge pipe (3012) and the vertical direction gradually decrease.

10. The cyclone centrifugal drying device for masterbatch after pelletizing according to claim 7, characterized in that: The bottom of the installation tube (1041) is sealed, a plurality of first through holes (1044) are penetrated through the side wall of the installation tube (1041), a second through hole (1045) is penetrated through the first support tube (1042), a third through hole (1046) is penetrated through the second support tube (1043), and an exhaust port of the second fan (305) is connected to the top opening of the installation tube (1041) extending out of the housing (101) via a third connecting pipe (308).

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