Automatic color master batch drying machine

Abstract

The utility model discloses an automatic color master batch drying machine which comprises a tank body, the bottom in the tank body is in an inverted hopper shape, a feeding port is formed in one side of the top of the tank body, a material lifting barrel is fixed to the axis in the tank body, the lower portion of the material lifting barrel protrudes out of the bottom of the tank body, and a material lifting screw rod is arranged in the material lifting barrel. The material lifting screw rod is driven by a motor, the motor is located at the top of the tank body, a bearing seat is installed at the bottom of the material lifting screw rod, and a circulating feeding port and a circulating discharging port are formed in the lower portion and the upper portion of the outer wall of the material lifting barrel correspondingly and located at the bottom and the top of the interior of the tank body correspondingly. A discharging opening is formed in the outer wall, protruding out of the bottom of the tank body, of the lifting barrel, and a sealing cover is arranged on the outer side of the discharging opening. The utility model solves the problem that the existing color master batch cannot circularly fall for multiple times to be dried in the fixed cylindrical tank body.

Description

Technical Field

[0001] The utility model belongs to a drying machine, in particular to an automatic drying machine for masterbatch. Background Art

[0002] Masterbatch is a new type of special dye for polymer materials, usually used for dyeing plastics. During the production process, masterbatch absorbs moisture from the surrounding environment, resulting in excessive water content. The purpose of drying is to remove moisture and volatile components in masterbatch, improve the stability and quality of masterbatch, and ensure the quality and long-term storage of masterbatch.

[0003] The utility model patent with publication number CN203888066U discloses a masterbatch dryer, including a drying tube and an air supply pump, the drying tube including a feed port and a discharge port, a hopper for placing masterbatch is arranged at the feed port, the drying tube includes an inner wall and an outer wall, a cavity is arranged between the inner wall and the outer wall, a plurality of air outlets are arranged on the inner wall and the air outlets are arranged along the direction from the feed port to the discharge port, the air outlets are interconnected with the cavity, an air supply tube is arranged between the air supply pump and the cavity, the utility model provides a masterbatch dryer with high drying efficiency, which fully guarantees the drying effect of the masterbatch. Since the drying tube is a fixed cylindrical design, the masterbatch enters the feed port and exits the discharge port in a falling process from high to low for drying. The falling path cannot be circulated, and it cannot be guaranteed that the masterbatch can be discharged from the discharge port completely dry after falling once. Once the masterbatch is discharged from the discharge port and then circulated from the feed port, a large amount of heat will be released outside the drying tube, affecting the drying efficiency. Utility Model Content

[0004] The utility model aims to provide an automatic drying machine for masterbatch, which solves the problem that the existing masterbatch cannot be dropped for multiple cycles for drying in a fixed cylindrical tank.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A masterbatch automatic dryer comprises a tank body, the bottom of the tank body is in an inverted bucket shape, a feed port is arranged on one side of the top of the tank body, a lifting barrel is fixed to the axis inside the tank body, the bottom of the lifting barrel protrudes from the bottom of the tank body, a lifting screw rod is arranged in the lifting barrel, the lifting screw rod is driven by a motor, the motor is located at the top of the tank body, a bearing seat is installed at the bottom of the lifting screw rod, a circulation feed port and a circulation discharge port are respectively opened below and above the outer wall of the lifting barrel, the circulation feed port and the circulation discharge port are respectively located at the bottom and top of the tank body, a discharge port is opened on the outer wall of the lifting barrel protruding from the bottom of the tank body, and a sealing cover is arranged on the outside of the discharge port.

[0007] Preferably, an inner cavity is provided in the outer shell of the tank body, an air inlet and an air outlet are respectively provided at the bottom and the top of the inner cavity, and a heating device and a fan are sequentially connected to the outside of the air inlet through a hose.

[0008] Preferably, the heating device is an electric heater, which is heated by an internal electric heating rod.

[0009] Preferably, the inner cavity is communicated with the interior of the tank body through through holes, and the through holes are evenly distributed on the inner wall of the tank body.

[0010] Preferably, the outer wall of the tank body is provided with a heat-insulating layer, and the heat-insulating layer material is glass wool.

[0011] Preferably, a convex plate and a concave plate are sequentially arranged inside the tank body from top to bottom, the convex plate is a conical structure, fixed to the outer wall of the lifting barrel, the concave plate is an inverted bucket structure, fixed to the inner wall of the tank body, a space is left between the outer side of the convex plate and the circumference of the inner wall of the tank body, and a space is left between the inner wall of the concave plate and the circumference of the outer wall of the lifting barrel.

[0012] Preferably, the bottom of the tank body is penetrated by a plurality of vertical connection holes, each of which is provided with a nozzle, and a connecting pipe is welded to the bottom of the nozzle, and the connecting pipe is connected to the heating device and the fan pipe.

[0013] Preferably, the top end of the nozzle located inside the tank body is connected to a limit ring, and the outer sleeve of the nozzle located outside the tank body is connected with a spring. The nozzle is slidably connected along the connecting hole, and the positions of the multiple nozzles are distributed in a circle. Connecting rings are provided at the bottom of the multiple nozzles. The connecting plate is fixed to the bottom of the lifting screw rod, and a vertical top column is fixed on the top of the connecting plate. A roller is installed on the top of the top column. The roller is located below the connecting ring, and the rotation trajectory of the roller is the same as the contour of the connecting ring.

[0014] Preferably, the connecting ring is made of flexible plastic material.

[0015] Preferably, the height of the roller is higher than the height of the connecting ring in a natural state.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1) The masterbatch can be raised and lowered in the tank through the lifting screw rod for multiple cycles, so that the masterbatch can fully contact with the hot air provided by the fan and heating device when falling in the air, so as to achieve the purpose of rapid drying;

[0018] 2) The masterbatch can be buffered by the convex plate and the concave plate during the falling process, and the masterbatch falls in an "S" shape on the convex plate and the concave plate when falling, delaying the falling time of the masterbatch, reducing the accumulation height of the masterbatch at the bottom of the tank, so that more masterbatch can be fully contacted with the hot air, and the drying efficiency is accelerated;

[0019] 3) The nozzle also provides hot air through the fan and the heating device, which can blow the masterbatch accumulated at the bottom of the tank. While blowing, the masterbatch can be rolled, increasing the contact between the masterbatch accumulated at the bottom and the hot air, reducing the time consumed when the masterbatch is dried;

[0020] 4) The roller is connected through the top column and the connecting plate, and rotates synchronously with the lifting screw rod, which can make each indirectly contacted nozzle move up and down, so that the nozzle increases the jet range and further reduces the drying time of the masterbatch. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the utility model;

[0022] Figure 2 yes Figure 1 Sectional view;

[0023] Figure 3 This is a schematic diagram of the appearance structure of the lifting cylinder of the utility model;

[0024] Figure 4 is a cross-sectional view of Example 2;

[0025] Figure 5 is a partial cross-sectional view of Example 3;

[0026] Figure 6 It is a schematic diagram of the partial structure of Example 4;

[0027] Figure 7 yes Figure 6 Sectional view;

[0028] Icons: 1. Tank body; 2. Feed inlet; 3. Lifting barrel; 4. Lifting screw rod; 5. Motor; 6. Bearing seat; 7. Circulation feed inlet; 8. Circulation discharge port; 9. Discharge port; 10. Cover; 11. Inner cavity; 12. Air inlet; 13. Air outlet; 14. Heating device; 15. Fan; 16. Through hole; 17. Insulation layer; 18. Convex disk; 19. Concave disk; 20. Connecting hole; 21. Nozzle; 22. Connecting pipe; 23. Limiting ring; 24. Spring; 25. Connecting ring; 26. Connecting plate; 27. Top column; 28. Roller. DETAILED DESCRIPTION

[0029] In order to make the purpose, method scheme and advantages of the embodiments of the utility model clearer, the method scheme in the embodiments of the utility model is clearly and completely described. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Example 1

[0031] like Figure 1 -

[0032] As shown in Figure 3, an automatic masterbatch drying machine comprises a tank body 1, the bottom of the tank body (1) is in an inverted bucket shape, which is convenient for gathering the masterbatch at the bottom to the center, a feed port 2 is opened on one side of the top of the tank body 1 for placing undried masterbatch, a lifting cylinder 3 is fixed to the axis of the tank body 1, the bottom of the lifting cylinder 3 protrudes from the bottom of the tank body 1, a lifting screw rod 4 is arranged in the lifting cylinder 3 for lifting materials, the lifting screw rod 4 is driven by a motor 5, the motor 5 is located at the top of the tank body 1, a bearing seat 6 is installed at the bottom of the lifting screw rod 4, a circulating feed port 7 and a circulating discharge port 8 are respectively opened at the bottom and top of the outer wall of the lifting cylinder 3, the circulating feed port 7 and the circulating discharge port 8 are respectively located at the bottom and top of the tank body 1, so that the masterbatch can be circulated and raised in the tank body 1, and a discharge port 9 is opened on the outer wall of the lifting cylinder 3 protruding from the bottom of the tank body 1, and a sealing cover 10 is arranged on the outer side of the discharge port 9, and the sealing cover 10 can be opened and closed by an external cylinder. When the material is raised, the cover 10 keeps the discharge port 9 in a closed state, and when the material is discharged, the cover 10 is opened, and the motor 5 is set to rotate forward to raise the material and reverse to discharge the material from the discharge port 9. The forward and reverse time of the motor 5 can be set to achieve automatic drying and discharge of the masterbatch.

[0033] Furthermore, an inner cavity 11 is provided in the outer shell of the tank body 1, and an air inlet 12 and an air outlet 13 are respectively provided at the bottom and the top of the inner cavity 11, and a heating device 14 and a fan 15 are connected to the outside of the air inlet 12 in sequence through a hose; the heating device 14 is an electric heater, which is heated by an internal electric heating rod, and heats the inner cavity 11 of the tank body 1 by electric heating.

[0034] Furthermore, the inner cavity 11 is connected to the inside of the tank body 1 through a through hole 16, the diameter of the through hole 16 is smaller than the diameter of the masterbatch, and the through holes 16 are evenly distributed on the inner wall of the tank body 1. Hot air passes through the through holes 16 through the inner cavity 11 and enters the tank body 1 to contact the masterbatch to evaporate moisture.

[0035] Furthermore, the outer wall of the tank body 1 is provided with a heat-insulating layer 17, and the material of the heat-insulating layer 17 is glass wool, which insulates the inside of the tank body and reduces heat loss.

[0036] During the specific implementation process, the fan 15 is started, and the air is heated by the electric heating rod passing through the heating device 14. The hot air enters the inner cavity 11 of the tank body 1 from the air inlet 12, and is preheated after entering the tank body 1. After reaching the preheating temperature, the masterbatch to be dried enters the tank body 1 from the feed port 2, and the motor 5 is started. The masterbatch at the bottom of the tank body 1 enters the lifting barrel from the circulating feed port 7, is lifted by the lifting screw rod 4, and falls from the circulating discharge port 8. The masterbatch scattered in the air is fully in contact with the hot air, and reciprocating drying is carried out, and the number of cycles is controllable. After the masterbatch is fully dried, the motor 5 is reversed to discharge the masterbatch from the discharge port 9.

[0037] Example 2

[0038] In order to increase the falling time of the masterbatch and reduce the accumulation height of the masterbatch at the bottom of the tank body 1, improvements are made on the basis of Example 1, such as Figure 4 As shown, in this embodiment, a convex disk 18 and a concave disk 19 are sequentially arranged inside the tank body 1 from top to bottom. The convex disk 18 is a conical structure, fixed to the outer wall of the lifting barrel 3, and the concave disk 19 is an inverted bucket structure, fixed to the inner wall of the tank body 1. A space is left between the outer side of the convex disk 18 and the circumference of the inner wall of the tank body 1, and a space is left between the inner wall of the concave disk 19 and the circumference of the outer wall of the lifting barrel 3. The width of this space is much larger than the diameter of the masterbatch.

[0039] In the specific implementation process, the masterbatch falls from a height and rolls down from the convex plate 18 and the concave plate 19 in turn, which slows down the falling time of the masterbatch. Moreover, the rolling trajectory of the masterbatch from the convex plate 18 and the concave plate 19 is "S" shaped, which prolongs the falling trajectory of the masterbatch, increases the contact time between the masterbatch and the hot air in the air and during the rolling process, and indirectly reduces the stacking height of the masterbatch at the bottom of the tank body 1, avoiding excessive accumulation of the masterbatch to affect the ventilation and drying efficiency.

[0040] Example 3

[0041] In order to accelerate the drying of the masterbatch accumulated at the bottom of the tank body 1, the embodiment 2 is improved, such as Figure 5 As shown, in this embodiment, a plurality of vertical connection holes 20 are passed through the bottom of the tank body 1, and a nozzle 21 is arranged in each connection hole 20. A connecting pipe 22 is welded to the bottom of the nozzle 21, and the connecting pipe 22 is connected to the heating device 14 and the fan 15.

[0042] During the specific implementation process, the hot air provided by the fan 15 and the heating device 14 enters the bottom of the tank body through the nozzle 21 from the connecting pipe 22, and blows the hot air to the accumulated masterbatch, so that the accumulated masterbatch rolls and heats, thereby accelerating the drying efficiency of the accumulated masterbatch.

[0043] Example 4

[0044] In order to accelerate the drying of masterbatches piled at different heights, improvements are made based on Example 3, such as Figure 6 -

[0045] As shown in FIG. 7 , in this embodiment, the nozzle 21 is connected along the connection hole 20 by sliding, and the top of the nozzle 21 located in the tank body 1 is connected to a limit ring 23 to prevent the nozzle 21 from falling from the connection hole 20. The nozzle 21 located outside the tank body 1 is sleeved with a spring 24 to play a downward reset role. The positions of the plurality of nozzles 21 are distributed in a circle, and the bottom of the plurality of nozzles 21 is bonded or bolted with a flexible plastic material connection ring 25, and the connecting plate 26 is fixed to the bottom of the material lifting screw rod 4. A vertical top column 27 is fixed on the top of the connecting plate 26, and a roller 28 is installed on the top of the top column 27. The roller 28 is located below the connection ring 25, and the rotation trajectory of the roller 28 is the same as the contour of the connection ring 25. The setting height of the roller 28 is higher than the height of the connection ring 25 in the natural state.

[0046] During the specific implementation process, the roller 28 rotates synchronously with the lifting screw rod 4 through the top column 27 and the connecting plate 26. When the roller 28 passes by, the connecting ring 25 is elastically deformed, and the nozzle 21 approaching is pressed upward to increase the jet height of the nozzle 21. When it is far away from the nozzle 21, the nozzle 21 is reset downward by the spring 24, so that the nozzle 21 resumes the original height of the jet. The roller 28 moves on the connecting ring 25, so that multiple nozzles 21 are lifted and lowered reciprocatingly, and the jet height is changed to increase the jet range of the accumulated masterbatch and accelerate the drying speed of the masterbatch.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic masterbatch drying machine, comprising a tank body (1), wherein the bottom of the tank body (1) is in an inverted bucket shape, characterized in that: A feed port (2) is provided on one side of the top of the tank body (1), a lifting barrel (3) is fixed on the axis inside the tank body (1), the lower part of the lifting barrel (3) protrudes from the bottom of the tank body (1), a lifting screw rod (4) is provided inside the lifting barrel (3), the lifting screw rod (4) is driven by a motor (5), the motor (5) is located at the top of the tank body (1), a bearing seat (6) is installed at the bottom of the lifting screw rod (4), a circulating feed port (7) and a circulating discharge port (8) are respectively provided at the lower and upper parts of the outer wall of the lifting barrel (3), the circulating feed port (7) and the circulating discharge port (8) are respectively located at the bottom and the top of the tank body (1), a discharge port (9) is provided on the outer wall of the lifting barrel (3) protruding from the bottom of the tank body (1), and a sealing cover (10) is provided on the outer side of the discharge port (9).

2. The automatic masterbatch drying machine according to claim 1, characterized in that: An inner cavity (11) is arranged in the outer shell of the tank body (1), and an air inlet (12) and an air outlet (13) are arranged at the bottom and the top of the inner cavity (11), respectively. The outside of the air inlet (12) is connected to a heating device (14) and a fan (15) in sequence through a hose.

3. The automatic masterbatch drying machine according to claim 2, characterized in that: The heating device (14) is an electric heater, which is heated by an internal electric heating rod.

4. The automatic masterbatch drying machine according to claim 2, characterized in that: The inner cavity (11) is in communication with the interior of the tank body (1) via through holes (16), and the through holes (16) are evenly distributed on the circumference of the inner wall of the tank body (1).

5. The automatic masterbatch drying machine according to claim 4, characterized in that: The outer wall of the tank body (1) is provided with a heat-insulating layer (17), and the material of the heat-insulating layer (17) is glass wool.

6. The automatic masterbatch drying machine according to claim 1, characterized in that: A convex plate (18) and a concave plate (19) are sequentially arranged in the upper and lower parts of the tank body (1); the convex plate (18) is a conical structure and is fixed to the outer wall of the lifting barrel (3); the concave plate (19) is an inverted bucket structure and is fixed to the inner wall of the tank body (1); a space is left between the outer side of the convex plate (18) and the circumference of the inner wall of the tank body (1); and a space is left between the inner wall of the concave plate (19) and the circumference of the outer wall of the lifting barrel (3).

7. The automatic masterbatch drying machine according to claim 1, characterized in that: The bottom of the tank body (1) is penetrated by a plurality of vertical connection holes (20), each connection hole (20) is provided with a nozzle (21), the bottom of the nozzle (21) is welded with a connection pipe (22), and the connection pipe (22) is connected to the heating device (14) and the fan (15) pipe.

8. The automatic masterbatch drying machine according to claim 7, characterized in that: The top end of the nozzle (21) located inside the tank body (1) is connected to a limit ring (23), and the outer shell of the nozzle (21) located outside the tank body (1) is connected with a spring (24). The nozzle (21) is slidably connected along the connection hole (20). The positions of the plurality of nozzles (21) are distributed in a circle. The bottoms of the plurality of nozzles (21) are provided with a connecting ring (25). The bottom of the lifting screw rod (4) is fixed with a connecting plate (26), and the top of the connecting plate (26) is fixed with a vertical top column (27). The top of the top column (27) is equipped with a roller (28). The roller (28) is located below the connecting ring (25), and the rotation trajectory of the roller (28) is the same as the contour of the connecting ring (25).

9. The automatic masterbatch drying machine according to claim 8, characterized in that: The connecting ring (25) is made of flexible plastic material.

10. The automatic masterbatch drying machine according to claim 9, characterized in that: The height of the roller (28) is higher than the height of the connecting ring (25) in a natural state.

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