Color master batch drying equipment convenient to clean

Abstract

The utility model relates to polyester filament production field especially, it relates to a color master batch drying equipment convenient to clearance, including support platform, and the support platform is fixed with drying cylinder and penetrates, and drying cylinder includes with support platform fixed cylinder body, and the upper and lower ends difference of cylinder body is fixed with top plate and bottom plate, is equipped with agitating mechanism, feed hopper and air outlet pipe on the top plate, is equipped with the blanking mechanism on the bottom plate, and the upper portion of cylinder body is equipped with first opening, and first opening is equipped with with it the first openable and closable door that matches, and the lower portion of cylinder body is equipped with second opening, and second opening is equipped with with it the second openable and closable door that matches, and the lower portion inner wall of cylinder body is fixed with conical filter screen, and the lower end of conical filter screen is linked with blanking mechanism, and the lower portion of cylinder body is linked with hot -blast mechanism, through the setting of first opening, first openable and closable door, second opening and second openable and closable door, greatly facilitate the clearance of the inside of drying cylinder, through the setting of agitating mechanism, makes the drying of color master batch more uniform and comprehensive.

Description

Technical Field

[0001] This utility model relates to the field of polyester filament production, and in particular to a masterbatch drying device that is easy to clean. Background Technology

[0002] Color masterbatch is a new type of special colorant for polymer materials, composed of pigments or dyes, carriers, and additives. It is made by uniformly loading an excessive amount of pigment into resin and is mainly used for coloring plastics. It has the characteristics of strong coloring power and ease of use. Color masterbatch is used in the production of colored polyester filament. Before use, color masterbatch needs to be dried, which requires drying equipment. Patent application number CN202321778913.7 discloses a new type of color masterbatch dryer. This dryer improves the drying time of color masterbatch by setting up a multi-layer conveying structure in the drying chamber, thereby ensuring thorough drying of the color masterbatch. However, this dryer still has the following drawbacks during use: 1) Color masterbatch piled on the conveying structure cannot be dried evenly during the conveying process; 2) Dust is generated during the drying process of the color masterbatch, and the dust is easy to accumulate. The dust accumulates inside the dryer, and it is difficult to clean the dust accumulated inside the dryer with this structure; 3) Color masterbatch comes in various colors, and each color needs to be dried separately. After the dryer finishes drying a color of masterbatch, the color is often left on the inner wall of the drying chamber and on the conveyor structure. If it is not cleaned in time, it will mix with the color of the next color masterbatch to be dried, thus ultimately affecting the quality of polyester filament. However, it is very troublesome to clean the residual color on the inner wall of the dryer, especially the residual color on the conveyor structure. Therefore, there is an urgent need for a color masterbatch drying equipment that can uniformly dry the masterbatch and is easy to clean. Utility Model Content

[0003] (a) Technical problems to be solved In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a color masterbatch drying equipment that is easy to clean, which solves the problems existing in the prior art. It can not only dry the color masterbatch evenly, but also make it easy to clean.

[0004] (II) Technical Solution

[0005] To achieve the above objectives, this utility model provides the following technical solution: a masterbatch drying device that is easy to clean, comprising a support platform, a drying cylinder fixed through the support platform, the drying cylinder comprising a cylinder body fixed to the support platform, a top plate and a bottom plate fixed to the upper and lower ends of the cylinder body respectively, the top plate being provided with a stirring mechanism, a feeding hopper and an air outlet pipe, the bottom plate being provided with a feeding mechanism, a first opening being provided at the upper part of the cylinder body, the first opening being provided with a first openable door matching it, a second opening being provided at the lower part of the cylinder body, the second opening being provided with a second openable door matching it, a conical filter screen being fixed on the lower inner wall of the cylinder body, the lower end of the conical filter screen being connected to the feeding mechanism, and a hot air supply mechanism being connected to the lower part of the cylinder body.

[0006] Preferably, the outer periphery of the first opening is provided with a first groove, and the inner wall of the first openable door is fixed with a first sealing ring; the outer periphery of the second opening is provided with a second groove, and the inner wall of the second openable door is fixed with a second sealing ring.

[0007] Preferably, the feeding mechanism includes a feeding pipe fixed to the lower end of the conical filter screen, the feeding pipe passing through the bottom plate, and a cover being threaded to the lower end of the feeding pipe.

[0008] Preferably, the conical filter screen includes an annular block fixed to the inner wall of the cylinder, and a conical filter screen body integrally formed therewith is connected to the bottom surface of the annular block, the bottom end of the conical filter screen body being flush with the inner surface of the base plate.

[0009] Preferably, the hot air supply mechanism includes an air inlet pipe connected to the cylinder body, the lower end of the air inlet pipe being close to the bottom plate, the air inlet pipe passing through the support platform, and a hot air generator connected to its upper end, the hot air generator being fixed to the cylinder body by several fixing blocks.

[0010] Preferably, the stirring mechanism includes a motor fixed at the center of the top plate, the motor's rotating shaft passing through the top plate, a stirring rod fixed on the motor's rotating shaft, a spiral stirring blade fixed on the stirring rod, the upper end of the spiral stirring blade being located below the first opening, and its lower end being located at the conical filter screen.

[0011] Preferably, several stirring paddles are fixed alternately on the stirring rod.

[0012] Preferably, one side of both the first and second openable doors is hinged to the cylinder body, and the other side of both the first and second openable doors is connected to the cylinder body in an openable manner via two sets of latches.

[0013] Preferably, an electrostatic dust-attracting film is fixed on the inner wall of the cylinder below the annular block and on the inner wall of the bottom plate.

[0014] (III) Beneficial Effects

[0015] 1. This utility model greatly facilitates the cleaning of the inside of the drying cylinder through the design of the first opening, the first openable door, the second opening, and the second openable door; the stirring mechanism makes the drying of the masterbatch more uniform and comprehensive; the conical filter screen serves two purposes: firstly, it filters dust during the drying process, allowing the dust to settle to the bottom of the drying cylinder for collection; secondly, the conical filter screen allows hot air to rise evenly from all sides through the filter holes, ensuring uniform heating of the masterbatch inside the drying cylinder; and thirdly, the conical filter screen greatly facilitates subsequent material feeding.

[0016] 2. By setting up a first groove, a first sealing ring, a second groove, and a second sealing ring, this utility model can prevent hot air from escaping outward from the gap between the first opening and the first opening / closing door, as well as the gap between the second opening and the second opening / closing door, when the first and second openable doors are closed, thus achieving a good sealing effect and ensuring the efficiency and effectiveness of drying.

[0017] 3. This utility model uses spiral stirring blades and stirring paddles to mix the color masterbatch in the drying cylinder in both the longitudinal and transverse directions, improving the comprehensiveness and uniformity of the mixing of the color masterbatch. It also greatly facilitates the upward movement of hot air, thereby ultimately improving the uniform drying effect of the color masterbatch.

[0018] 4. This utility model, through the setting of the electrostatic dust-absorbing membrane, not only plays a good role in adsorbing dust, but also avoids dust from being stirred up to a certain extent during the hot air introduction process. Finally, when cleaning, you only need to remove the electrostatic dust-absorbing membrane as a whole, which is very convenient. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0020] Figure 2 This is a schematic diagram of the drying cylinder, stirring mechanism, conical filter screen, and feeding mechanism of this utility model.

[0021] Figure 3 This is a schematic diagram of the overall design of this utility model.

[0022] In the diagram: 1-Support platform, 2-Drying cylinder, 3-Cylinder body, 4-Top plate, 5-Bottom plate, 6-Stirring mechanism, 7-Feed hopper, 8-Air outlet pipe, 9-Discharge mechanism, 10-First opening, 11-First openable door, 12-Second opening, 13-Second openable door, 14-Conical filter screen, 15-Hot air supply mechanism, 16-First groove, 17-First sealing ring, 18-Second groove, 19-Second sealing ring, 20-Discharge pipe, 21-Cover body, 22-Annular block, 23-Conical filter screen body, 24-Air inlet pipe, 25-Hot air generator, 26-Fixing block, 27-Motor, 28-Stirring rod, 29-Spiral stirring blade, 30-Stirring paddle, 31-Latch lock. Detailed Implementation

[0023] The following will refer to the appendix in the embodiments of this utility model. Figure 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0024] This utility model provides a technical solution: a masterbatch drying device that is easy to clean, including a support platform 1, a drying cylinder 2 fixed through the support platform 1, the drying cylinder 2 including a cylinder body 3 fixed to the support platform 1, a top plate 4 and a bottom plate 5 fixed at the upper and lower ends of the cylinder body 3 respectively, the top plate 4 is provided with a stirring mechanism 6, a feeding hopper 7 and an air outlet pipe 8, the bottom plate 5 is provided with a feeding mechanism 9, the upper part of the cylinder body 3 has a first opening 10, the first opening 10 is provided with a first openable door 11 matching it, the lower part of the cylinder body 3 has a second opening 12, the second opening 12 is provided with a second openable door 13 matching it, a conical filter screen 14 is fixed on the lower inner wall of the cylinder body 3, the lower end of the conical filter screen 14 is connected to the feeding mechanism 9, and the lower part of the cylinder body 3 is connected to a hot air supply mechanism 15. During operation, a certain amount of color masterbatch is first added to the feed hopper 7. The added color masterbatch is of the same color. During the process of adding color masterbatch, the first openable door 11 and the second openable door 13 are both closed. Then, the stirring mechanism 6 and the hot air supply mechanism 15 are started simultaneously. The stirring mechanism 6 stirs the color masterbatch in the drying cylinder 2, and the hot air supply mechanism 15 delivers hot air into the drying cylinder 2. By stirring and supplying hot air at the same time, the color masterbatch in the drying cylinder 2 can be dried evenly. On the other hand, the stirring process makes it easier for the hot air to rise from the bottom and carry away the moisture in the color masterbatch. Finally, it is discharged from the air outlet pipe 8 and the feed hopper 7, which greatly improves the drying efficiency and effect. The pores on the conical filter 14 have a smaller diameter than the masterbatch particles. The conical filter 14 serves two purposes: firstly, it filters dust during the masterbatch drying process, allowing the dust to settle to the bottom of the drying cylinder 2; secondly, it allows hot air to flow evenly upwards from all sides of the filter 14 through the pores, ensuring uniform heating of the masterbatch within the drying cylinder 2. Additionally, the conical filter 14 greatly facilitates subsequent material feeding. The stirring mechanism 6 operates at a very slow speed, approximately 3-5 revolutions per minute. This not only achieves the stirring function but also prevents damage to the masterbatch due to excessively fast stirring, thus providing excellent protection for the masterbatch. When the drying time reaches the preset time, the stirring mechanism 6 and the hot air supply mechanism 15 stop operating. After the masterbatch in the drying cylinder 2 has cooled down for a period of time, a collection frame is placed below the feeding mechanism 9. Then the feeding mechanism 9 is opened, and the masterbatch in the drying cylinder 2 will all enter the collection frame below it for collection.Then, open the first openable door 11 and the second openable door 13, and then clean the inside of the drying cylinder 2 through the first opening 10 and the second opening 12. The cleaning method is as follows: use a compressed air hose to blow obliquely downward through the first opening 11 onto the inner wall of the drying cylinder 2, and at the same time use a vacuum cleaner to vacuum at the second opening 12. In this way, the pigments and dust attached to the drying cylinder 1 are cleaned, and the cleaning effect is good. At the same time, it also effectively unblocks and cleans the conical filter screen 14. After cleaning, close the first openable door 11 and the second openable door 13 to prepare for the next drying.

[0025] The first opening 10 has a first groove 16 around its periphery, and a first sealing ring 17 is fixed to the inner wall of the first openable door 11. The second opening 12 has a second groove 18 around its periphery, and a second sealing ring 19 is fixed to the inner wall of the second openable door 13. The thickness of the first sealing ring 17 is slightly greater than the depth of the first groove 16, and the thickness of the second sealing ring 19 is slightly greater than the thickness of the second groove 18. This ensures that when the first openable door 11 and the second openable door 12 are closed, hot air can be prevented from escaping outward from the gaps between the first opening 10 and the first openable door 11, and between the second opening 12 and the second openable door 13 during drying, thus providing a good seal and ensuring the efficiency and effectiveness of drying.

[0026] The feeding mechanism 9 includes a feeding pipe 20 fixed to the lower end of the conical filter screen 14. The feeding pipe 20 passes through the base plate 5, and a cover 21 is threadedly connected to the lower end of the feeding pipe 20. With this arrangement, the cover 21 is screwed tightly onto the feeding pipe 20 during the drying process, which does not affect the drying process. After drying is completed, the cover 21 can simply be unscrewed from the feeding pipe 20, which is very convenient.

[0027] The conical filter 14 includes an annular block 22 fixed to the inner wall of the cylinder 3. A conical filter body 23 integrally formed therewith is connected to the bottom surface of the annular block 22, and the bottom end of the conical filter body 23 is flush with the inner surface of the base plate 5. The annular block 22 plays a good fixing role, making the fixation between the conical filter 14 and the drying cylinder 2 more secure.

[0028] The hot air supply mechanism 15 includes an air inlet pipe 24 connected to the cylinder body 3. The lower end of the air inlet pipe 24 is close to the bottom plate 5. The air inlet pipe 24 passes through the support platform 1, and its upper end is connected to a hot air generator 25. The hot air generator 25 is fixed to the cylinder body 3 by several fixing blocks 26. The hot air generator 25 provides hot air for drying the masterbatch. The hot air generator 25 is prior art and will not be described in detail here.

[0029] The stirring mechanism 6 includes a motor 27 fixed at the center of the top plate 4. The rotating shaft of the motor 27 passes through the top plate 4, and a stirring rod 28 is fixed on the rotating shaft of the motor 27. A spiral stirring blade 29 is fixed on the stirring rod 28. The upper end of the spiral stirring blade 29 is located below the first opening 10, and its lower end is located inside the conical filter screen 14. The spiral stirring blade 29 effectively stirs the masterbatch in the drying cylinder 2, lifting the masterbatch upwards, thus greatly improving the mixing effect and making the mixing more uniform, resulting in more uniform drying of the masterbatch. Extending the spiral stirring blade 29 into the conical filter screen 14 further enhances the stirring and ventilation effects.

[0030] Several stirring paddles 30 are fixed alternately on the stirring rod 27. The arrangement of the stirring paddles 30 further enhances the lateral mixing effect of the masterbatch in the drying cylinder 2, thereby improving the comprehensiveness and uniformity of the masterbatch mixing.

[0031] Both the first openable door 11 and the second openable door 13 are hinged to the cylinder body 3 on one side, and their other sides are connected to the cylinder body 3 via two sets of latches 31. The latches 31 enable the opening and closing of the first and second openable doors 11 and 13 to the cylinder body 3. The latches 31 are existing technology and will not be described in detail here. Alternatively, the opening and closing of the first and second openable doors 11 and 13 to the cylinder body 3 can also be achieved using screws, nuts, or other methods.

[0032] An electrostatic dust-absorbing film is fixed to the inner wall of the cylinder 3 below the annular block 22 and the inner wall of the bottom plate 5. This electrostatic dust-absorbing film is a PI electrostatic dust-absorbing film, which is relatively heat-resistant and suitable for the drying environment. The electrostatic dust-absorbing film effectively adsorbs dust and, to some extent, prevents dust from being stirred up during the hot air intake process. Finally, cleaning is as simple as removing the entire electrostatic dust-absorbing film, making it very convenient. For easier cleaning, an electrostatic dust-absorbing film can also be fixed to the inner wall of the cylinder 3 above the annular block 22.

[0033] Working principle: During operation, a certain amount of color masterbatch is first added to the feed hopper 7. The added color masterbatch is of the same color. During the addition of color masterbatch, the first openable door 11 and the second openable door 13 are both closed. Then, the stirring mechanism 6 and the hot air supply mechanism 15 are started simultaneously. The stirring mechanism 6 stirs the color masterbatch in the drying cylinder 2, and the hot air supply mechanism 15 delivers hot air into the drying cylinder 2. By changing the stirring method while supplying hot air, the color masterbatch in the drying cylinder 2 can be dried evenly. On the other hand, the stirring process makes it easier for the hot air to rise from the bottom and carry away the moisture in the color masterbatch. Finally, it is discharged from the air outlet pipe 8 and the feed hopper 7, which greatly improves the drying efficiency and effect. The pores on the conical filter 14 have a smaller diameter than the masterbatch particles. The conical filter 14 serves two purposes: firstly, it filters dust during the masterbatch drying process, allowing the dust to settle to the bottom of the drying cylinder 2; secondly, it allows hot air to flow evenly upwards from all sides of the filter 14 through the pores, ensuring uniform heating of the masterbatch within the drying cylinder 2. Additionally, the conical filter 14 greatly facilitates subsequent material feeding. The stirring mechanism 6 operates at a very slow speed, approximately 3-5 revolutions per minute. This not only achieves the stirring function but also prevents damage to the masterbatch due to excessively fast stirring, thus providing excellent protection for the masterbatch. After the drying time reaches the preset time, the stirring mechanism 6 and the hot air supply mechanism 15 stop operating. After the masterbatch in the drying cylinder 2 cools down for a period of time, a collection frame is placed below the feeding mechanism 9. Then, the feeding mechanism 9 is opened, and all the masterbatch in the drying cylinder 2 will enter the collection frame below it for collection. Then, the first openable door 11 and the second openable door 13 are opened, and the inside of the drying cylinder 2 is cleaned through the first opening 10 and the second opening 12. The cleaning method is as follows: compressed air is blown diagonally downward through the first opening 11 onto the inner wall of the drying cylinder 2. At the same time, a vacuum cleaner is used to vacuum the dust at the second opening 12. This cleans the pigments and dust attached to the drying cylinder 1, and the cleaning effect is good. At the same time, it also effectively unblocks and cleans the conical filter screen 14. After cleaning, the first openable door 11 and the second openable door 13 are closed to prepare for the next drying.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A masterbatch drying device that is easy to clean, characterized in that, The device includes a support platform (1), on which a drying cylinder (2) is fixed. The drying cylinder (2) includes a cylinder body (3) fixed to the support platform (1). A top plate (4) and a bottom plate (5) are fixed at the upper and lower ends of the cylinder body (3), respectively. A stirring mechanism (6), a feeding hopper (7), and an air outlet pipe (8) are provided on the top plate (4). A feeding mechanism (9) is provided on the bottom plate (5). A first opening (10) is provided at the upper part of the cylinder body (3). A first openable door (11) is provided at the first opening (10). A second opening (12) is provided at the lower part of the cylinder body (3). A second openable door (13) is provided at the second opening (12). A conical filter screen (14) is fixed on the lower inner wall of the cylinder body (3). The lower end of the conical filter screen (14) is connected to the feeding mechanism (9). A hot air supply mechanism (15) is connected to the lower part of the cylinder body (3).

2. The easy-to-clean masterbatch drying equipment according to claim 1, characterized in that, The first opening (10) is provided with a first groove (16) around its periphery, and a first sealing ring (17) is fixed on the inner wall of the first openable door (11). The second opening (12) is provided with a second groove (18) around its periphery, and a second sealing ring (19) is fixed on the inner wall of the second openable door (13).

3. The easy-to-clean masterbatch drying equipment according to claim 1, characterized in that, The feeding mechanism (9) includes a feeding pipe (20) fixed to the lower end of the conical filter screen (14), the feeding pipe (20) passes through the bottom plate (5), and the lower end of the feeding pipe (20) is threadedly connected to a cover (21).

4. The easy-to-clean masterbatch drying equipment according to claim 1, characterized in that, The conical filter (14) includes an annular block (22) fixed to the inner wall of the cylinder (3). The bottom surface of the annular block (22) is connected to the conical filter body (23) integrally formed therewith. The bottom end of the conical filter body (23) is flush with the inner surface of the base plate (5).

5. The easy-to-clean masterbatch drying equipment according to claim 1, characterized in that, The hot air supply mechanism (15) includes an air inlet pipe (24) connected to the cylinder body (3). The lower end of the air inlet pipe (24) is close to the bottom plate (5). The air inlet pipe (24) passes through the support platform (1) and its upper end is connected to a hot air generator (25). The hot air generator (25) is fixed on the cylinder body (3) by several fixing blocks (26).

6. The easy-to-clean masterbatch drying equipment according to claim 1, characterized in that, The stirring mechanism (6) includes a motor (27) fixed at the center of the top plate (4). The rotating shaft of the motor (27) passes through the top plate (4). A stirring rod (28) is fixed on the rotating shaft of the motor (27). A spiral stirring blade (29) is fixed on the stirring rod (28). The upper end of the spiral stirring blade (29) is located below the first opening (10), and its lower end is located inside the conical filter screen (14).

7. The easy-to-clean masterbatch drying equipment according to claim 6, characterized in that, Several stirring paddles (30) are fixed alternately on the stirring rod (28).

8. The easy-to-clean masterbatch drying equipment according to claim 1, characterized in that, One side of the first openable door (11) and the second openable door (13) are hinged to the cylinder body (3), and the other side of the first openable door (11) and the second openable door (13) are connected to the cylinder body (3) in an openable and closable manner through two sets of latch locks (31).

9. The easy-to-clean masterbatch drying equipment according to claim 4, characterized in that, An electrostatic dust-absorbing film is fixed on the inner wall of the cylinder (3) below the annular block (22) and on the inner wall of the bottom plate (5).

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