Hot air drying equipment

Abstract

The utility model relates to the technical field of drying equipment, in particular to hot air drying equipment which comprises a cyclone tank, an air blower used for providing hot air for cut TPE and other thermoplastic elastomer materials is arranged on one side of the cyclone tank, an air blowing part is fixedly connected to the air blower, and the air blowing part at least comprises a plurality of air rings located in the cyclone tank. By arranging the air rings with different wind powers, layered drying of materials from top to bottom can be achieved, and in the initial stage, the humidity of the materials is high, and large wind power is needed to be rapidly blown away and preliminarily dried; as the materials move downwards, the humidity of the materials is gradually reduced, the wind power is correspondingly weakened, excessive blowing and abrasion are avoided, a dispersing plate used for uniformly dispersing the materials is fixedly arranged in the cyclone tank, a sliding block used for adjusting the discharging amount of the materials is arranged at a discharging port of the cyclone tank in a sliding mode, and the size of a discharging port channel can be flexibly changed. Therefore, the device is suitable for materials of different types, different humidity or different drying speeds.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a hot air drying device. Background Technology

[0002] TPE (thermoplastic elastomer) is a material that combines the properties of rubber and thermoplastics, featuring softness, good elasticity, strong weather resistance, high temperature resistance, and oil resistance. These properties make TPE widely used in automotive parts, wires and cables, toys, medical supplies, and other fields.

[0003] In some production processes, residual moisture remains on the surface of thermoplastic elastomers such as TPE after pelleting. The presence of these substances can affect the quality and stability of the material, thus requiring drying. Hot air drying equipment uses hot air to dry the material intermittently, drying batches of pellets. Inside the cyclone separator, the hot air comes into full contact with the material, carrying away moisture and other volatile substances to achieve the drying purpose. After drying, the material is loaded into a storage container below.

[0004] When pelletized thermoplastic elastomers such as TPE are unevenly dispersed and dried by fixed hot air, problems such as material accumulation, agglomeration, and uneven drying occur. In view of this, a hot air drying device is provided. Utility Model Content

[0005] The main objective of this invention is to provide a hot air drying device to solve the problems of uneven dispersion and uneven drying of thermoplastic elastomer materials such as TPE after pelleting, as well as the accumulation and agglomeration of materials under fixed hot air drying conditions, as mentioned in related technologies.

[0006] To achieve the above objectives, according to one aspect of the present invention, a hot air drying device is provided, comprising a cyclone tank, a storage container fixedly connected to the bottom of the cyclone tank, a blower provided on one side of the cyclone tank for providing hot air to thermoplastic elastomer materials such as TPE after pelletizing, a blowing section fixedly connected to the blower, the blowing section including at least a plurality of air rings located inside the cyclone tank, and a dispersing plate for uniformly dispersing the material fixedly provided inside the cyclone tank, and a slider for adjusting the material discharge rate slidably provided at the discharge port of the cyclone tank.

[0007] Furthermore, the blowing unit also includes a connecting box fixedly connected to the blower. A first air ring and a third air ring are fixedly connected to the upper and lower ends of one side of the connecting box, and a second air ring is fixedly connected to the center of the same side of the connecting box. All the air rings are fixedly installed on the side wall of the cyclone tank.

[0008] Furthermore, the inner side of each wind ring is provided with several air outlets in a ring array, the wind force of the first wind ring is greater than that of the second wind ring, and the wind force of the second wind ring is greater than that of the third wind ring.

[0009] Furthermore, a plurality of first guide plates are arranged in a circular array below the first air ring, a plurality of second guide plates are arranged in a circular array below the second air ring, and a plurality of third guide plates are arranged in a circular array below the third air ring, wherein the tilt angle of the first guide plates is greater than that of the second guide plates, and the tilt angle of the second guide plates is greater than that of the third guide plates.

[0010] Furthermore, the dispersing plate is conical, and several through holes are formed through the dispersing plate. The diameter of the through holes is larger than the diameter of the TPE or other thermoplastic elastomer material after pelleting, and several protrusions are provided on the upper surface of the dispersing plate.

[0011] Furthermore, a spiral stirrer is fixedly installed at the center of the cyclone tank, and a power source is fixedly connected to the bottom of the spiral stirrer.

[0012] Furthermore, the slider is a column with an open sidewall, and a fixing plate is fixedly installed on one side of the slider. The length of the fixing plate is greater than the length of the slider, and the protruding end of the fixing plate is located at the lower end of the slider.

[0013] Furthermore, a connecting block is fixedly provided on the side wall of the fixing plate, and a screw hole is provided through the connecting block, with a bolt installed in the screw hole.

[0014] Furthermore, the discharge port sidewall of the cyclone tank is provided with a sliding groove, the connecting block is slidably installed in the sliding groove, and one end of the bolt is threaded onto the sidewall of the cyclone tank.

[0015] Furthermore, a conduit is fixedly connected to the side wall of the storage container, and the other end of the conduit is connected to the inlet of the cyclone tank.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In this hot air drying equipment, by setting up air rings with different air forces, the material can be dried in layers from top to bottom. In the initial stage, the material has a high humidity and requires a large air force to quickly disperse and initially dry it. As the material moves downward, its humidity gradually decreases, and the air force is weakened accordingly to avoid excessive dispersion and wear. The guide plate with a gradually decreasing downward tilt angle set below the air ring not only helps the material to flow stably in the cyclone tank, but also slows down the descent speed of the material, allowing it more time to come into contact with the hot air.

[0018] 2. In this hot air drying equipment, a slider is slidably set at the discharge port of the cyclone tank, which can flexibly change the size of the discharge port channel to adapt to different types of materials with different humidity or different drying speeds. The protruding end of the fixed plate on one side is tightly fitted to the opening of the chute, effectively preventing the material from flowing out of the chute. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the hot air drying equipment in a preferred embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the planar structure of the hot air drying equipment in a preferred embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the overall structure of the dispersion plate in a preferred embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the overall structure of the blower section in a preferred embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the overall structure of the air ring in a preferred embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the overall structure of the slider in a preferred embodiment of the present invention;

[0025] Figure 7 This is a schematic cross-sectional view of the hot air drying equipment in a preferred embodiment of the present invention;

[0026] Figure 8 This is a preferred embodiment of the present invention. Figure 7 Enlarged schematic diagram of the structure at point A in the middle.

[0027] Illustration:

[0028] 1. Cyclone can; 11. First guide plate; 12. Second guide plate; 13. Third guide plate; 14. Slide groove;

[0029] 2. Storage container; 3. Blower;

[0030] 4. Air blowing section; 41. Connecting box; 42. First air ring; 43. Second air ring; 44. Third air ring; 45. Air outlet;

[0031] 5. Conduit; 6. Dispersion plate; 61. Through hole; 7. Slider; 71. Fixing plate; 72. Connecting block; 73. Screw hole; 74. Bolt; 8. Spiral agitator. Detailed Implementation

[0032] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0033] Please see Figures 1-8 As shown, the purpose of this embodiment is to provide a hot air drying device, including a cyclone tank 1, a storage container 2 fixedly connected to the bottom of the cyclone tank 1, a blower 3 for providing hot air to thermoplastic elastomer materials such as TPE after pelletizing, a blowing section 4 fixedly connected to the blower 3, the blowing section 4 including at least a plurality of air rings located inside the cyclone tank 1, and a dispersing plate 6 for uniformly dispersing materials fixedly arranged inside the cyclone tank 1, and a slider 7 for adjusting the material discharge amount slidably arranged at the discharge port of the cyclone tank 1.

[0034] The blowing unit 4 also includes a connecting box 41 fixedly connected to the blower 3. The connecting box 41 is E-shaped. The main function of the connecting box 41 is to evenly distribute the hot air generated by the blower 3 into each air ring. It acts as a channel and distributor for hot air flow, ensuring that the hot air can be blown into the cyclone tank 1 according to a predetermined path and intensity. The first air ring 42 and the third air ring 44 are fixedly connected to the upper and lower ends of one side of the connecting box 41, respectively. The second air ring 43 is fixedly connected to the center of the same side of the connecting box 41. All the air rings are fixedly installed on the side wall of the cyclone tank 1, and each air ring has the same structural shape.

[0035] The inner side of the air ring is provided with several air outlets 45 in a ring array, which ensures that hot air can be blown into the cyclone tank 1 in all directions and evenly. This not only improves the utilization rate of hot air, but also ensures that the material can be affected by hot air in all directions, thereby achieving a more uniform drying effect.

[0036] As the material is blown hot air from top to bottom, its humidity gradually decreases. Therefore, the air force of each air ring needs to be adjusted accordingly. The air force of the first air ring 42 is greater than that of the second air ring 43. The first air ring 42 is located near the material inlet and requires a larger air force to initially disperse and dry the material. The air force of the second air ring 43 is greater than that of the third air ring 44. As the air force gradually weakens, the material will gradually become loose as it moves downward. This helps it to better receive the effect of hot air and accelerate the drying process. The air force of the third air ring 44 is the weakest, which can promote the transfer of material to the discharge port and avoid the problem of material accumulation and excessive dispersion inside the cyclone tank 1, as well as the problem of wear and breakage caused by material collision.

[0037] Several first guide plates 11 are arranged in a circular array below the first air ring 42, several second guide plates 12 are arranged in a circular array below the second air ring 43, and several third guide plates 13 are arranged in a circular array below the third air ring 44. All guide plates are fixedly connected to the inner wall of the cyclone tank 1. The tilt angle of the first guide plate 11 is greater than that of the second guide plate 12, the tilt angle of the second guide plate 12 is greater than that of the third guide plate 13, and the length of the first guide plate 11 is less than that of the second guide plate 12, and the length of the second guide plate 12 is less than that of the third guide plate 13.

[0038] The guide plate's tilt angle gradually decreases from top to bottom. As the material falls from above the cyclone tank 1, the effect of the hot air on it gradually weakens, and the material's moisture content also gradually decreases. Therefore, by reducing the tilt angle of the guide plate, the material's descent speed can be slowed down, allowing it more time to contact the hot air, thereby improving drying efficiency. Furthermore, a larger tilt angle helps the material to be quickly guided downwards below the first air ring 42, avoiding the problem of material accumulation above the cyclone tank 1. As the material moves downwards, the tilt angle gradually decreases, allowing the material to maintain a stable flow state and preventing accumulation below subsequent air rings.

[0039] When the pelletized thermoplastic elastomer materials such as TPE are dispersed by hot air, the guide plate also acts as a spring plate. When the material comes into contact with the guide plate, it will be subjected to a certain rebound force, which will make it more dispersed in the cyclone tank 1, which will help the material to come into more full contact with the hot air and improve the drying efficiency.

[0040] The dispersing plate 6 is conical, which helps the material to slide naturally along its surface and disperse when it is fed in. The dispersing plate 6 has several through holes 61, the diameter of which is larger than the diameter of the TPE or other thermoplastic elastomer material after pelleting. The material is gradually dispersed from the top center of the dispersing plate 6 to the surrounding area. Some material passes through the through holes 61, while some material avoids moving to the surrounding area from the dispersing plate 6, making the material feeding more uniform and dispersed, which is conducive to the material passing through the first air ring 42 for drying in the next step.

[0041] To further prevent materials from clumping or sticking together during the feeding process, the upper surface of the dispersion plate 6 is provided with several protrusions. These protrusions can disperse the materials as they pass through, separating the materials that are stuck together, thereby ensuring that the materials can enter the drying process in a more dispersed state.

[0042] A spiral agitator 8 is fixedly installed at the center of the cyclone tank 1. A power source is fixedly connected to the bottom of the spiral agitator 8. The power source is located above the discharge port of the cyclone tank 1 and at a certain distance. The power source is preferably a micro motor. The output shaft of the motor is fixedly connected to the center of the bottom of the spiral agitator 8. The rotation of the spiral agitator 8 can drive the material to form a circulating flow in the cyclone tank 1. This helps the material to be more evenly dispersed in the tank, which not only increases the contact area between the material and the hot air, but also improves the drying efficiency.

[0043] While increasing the mixing rate may further increase the contact area between the material and the hot air, excessively high rotation speeds can also cause the material to be damaged by excessive mechanical force. Therefore, the rotation speed of the spiral mixer 8 is designed to be low to ensure that while promoting material dispersion, unnecessary damage to the material is avoided, which helps to reduce collisions and friction between materials, thereby protecting the quality and shape of thermoplastic elastomer materials such as TPE after pelleting.

[0044] The slider 7 is a column with an opening on the side wall, and the material can flow from the side of the slider 7 to the discharge port. A fixing plate 71 is fixedly installed on one side of the slider 7. The length of the fixing plate 71 is greater than the length of the slider 7, and the protruding end of the fixing plate 71 is located at the lower end of the slider 7.

[0045] A connecting block 72 is fixedly installed on the side wall of the fixing plate 71. A screw hole 73 is opened through the connecting block 72, and a bolt 74 is installed in the screw hole 73.

[0046] A groove 14 is provided on the side wall of the discharge port of the cyclone tank 1. The connecting block 72 is slidably installed in the groove 14. When the connecting block 72 slides to the top of the groove 14, the material can pass through the largest channel, which helps to accelerate the material discharge rate when the material quantity is large or the drying efficiency is high. When the connecting block 72 slides to any position of the groove 14, the protruding end of the fixing plate 71 can fit tightly against the opening of the groove 14, thereby effectively preventing the material from flowing out of the groove 14. Furthermore, one end of the bolt 74 is threaded onto the side wall of the cyclone tank 1. By tightening the bolt 74, the position of the connecting block 72 is fixed, thereby fixing the position of the slider 7.

[0047] Depending on the quantity of TPE and other thermoplastic elastomer materials after pelleting and the drying efficiency, the operator can flexibly adjust the position of slider 7. When the quantity of material is large or the drying efficiency is high, slider 7 can be moved upward to increase the length of the material channel; conversely, when the quantity of material is small or the drying efficiency is low, slider 7 can be moved downward to decrease the length of the material channel.

[0048] To ensure thorough drying, a conduit 5 is fixedly connected to the side wall of the storage tank 2, and a pressure pump is fixedly installed at one end of the conduit 5 inside the storage tank 2. The other end of the conduit 5 is connected to the inlet of the cyclone tank 1. When a certain amount of material that has settled to the bottom and is not completely dried accumulates in the storage tank 2, the conduit 5 is used to pump the material that has settled to the bottom back into the inlet of the cyclone tank 1 to ensure that the material can be fully heated and thoroughly dried. This ensures that the dried material is fed into the storage tank 2 for metering and loading. A solenoid valve is installed at the bottom of the storage tank 2 to control the discharge of material from the storage tank 2.

[0049] In practical use, the pelletized thermoplastic elastomer material such as TPE is fed into the cyclone tank 1. The material first contacts the dispersing plate 6. Some material passes through the through holes 61 on the dispersing plate 6, while some material moves outwards along the surface of the dispersing plate 6. The blower 3 is started, generating hot air which is evenly distributed to the first air ring 42, the second air ring 43, and the third air ring 44 through the connecting box 41. The first air ring 42 has the strongest air force, initially dispersing and drying the material. The second air ring 43 has the next strongest air force, further drying the material. The third air ring 44 has the weakest air force, promoting the material towards the discharge port. The material is transferred through the inlet, and the spiral agitator 8 rotates at low speed under the drive of the power source. According to the quantity of material and drying efficiency, the length of the material channel of the slider 7 is adjusted by the position of the sliding connecting block 72 in the chute 14, and the position of the slider 7 is fixed by the tightening bolt 74. The material that has settled to the bottom and is not completely dried in the storage tank 2 is pumped back into the inlet of the cyclone tank 1 through the conduit 5 for re-drying. The dried material re-enters the storage tank 2 until it accumulates to a certain amount, and then is discharged by the solenoid valve at the bottom of the storage tank 2 for subsequent metering and loading.

[0050] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A hot air drying device, comprising a cyclone tank (1), a storage container (2) fixedly connected below the cyclone tank (1), and a blower (3) provided on one side of the cyclone tank (1) for providing hot air to the pelletized thermoplastic elastomer material, characterized in that, The blower (3) is fixedly connected to a blowing section (4), the blowing section (4) includes at least a number of air rings located inside the cyclone tank (1), and a dispersing plate (6) for uniformly dispersing materials is fixedly installed inside the cyclone tank (1), and a slider (7) for adjusting the amount of material discharged is slidably installed at the discharge port of the cyclone tank (1).

2. The hot air drying equipment according to claim 1, characterized in that, The blowing unit (4) also includes a connecting box (41) fixedly connected to the blower (3). The first air ring (42) and the third air ring (44) are fixedly connected to the upper and lower ends of one side of the connecting box (41), respectively. The second air ring (43) is fixedly connected to the center of the same side of the connecting box (41), and all the air rings are fixedly installed on the side wall of the cyclone tank (1).

3. The hot air drying equipment according to claim 2, characterized in that, The inner side of each wind ring is arranged in a ring array with several air outlets (45). The wind force of the first wind ring (42) is greater than that of the second wind ring (43), and the wind force of the second wind ring (43) is greater than that of the third wind ring (44).

4. The hot air drying equipment according to claim 2, characterized in that, The first air ring (42) has a plurality of first guide plates (11) arranged in a ring array below it, the second air ring (43) has a plurality of second guide plates (12) arranged in a ring array below it, and the third air ring (44) has a plurality of third guide plates (13) arranged in a ring array below it. The first guide plate (11) has a greater tilt angle than the second guide plate (12), and the second guide plate (12) has a greater tilt angle than the third guide plate (13).

5. The hot air drying equipment according to claim 1, characterized in that, The dispersing plate (6) is conical, and several through holes (61) are provided on the dispersing plate (6). The diameter of the through holes (61) is larger than the diameter of the thermoplastic elastomer material after pelleting, and several protrusions are provided on the upper surface of the dispersing plate (6).

6. The hot air drying equipment according to claim 1, characterized in that, A spiral stirrer (8) is fixedly installed at the center of the cyclone tank (1), and a power source is fixedly connected to the bottom of the spiral stirrer (8).

7. The hot air drying equipment according to claim 1, characterized in that, The slider (7) is a column with an open side wall. A fixing plate (71) is fixedly installed on one side of the slider (7). The length of the fixing plate (71) is greater than the length of the slider (7), and the protruding end of the fixing plate (71) is located at the lower end of the slider (7).

8. The hot air drying equipment according to claim 7, characterized in that, A connecting block (72) is fixedly installed on the side wall of the fixing plate (71). A screw hole (73) is provided through the connecting block (72), and a bolt (74) is installed in the screw hole (73) with internal thread.

9. The hot air drying equipment according to claim 8, characterized in that, The discharge port sidewall of the cyclone tank (1) is provided with a sliding groove (14), the connecting block (72) is slidably installed in the sliding groove (14), and one end of the bolt (74) is threadedly installed on the sidewall of the cyclone tank (1).

10. The hot air drying equipment according to claim 1, characterized in that, The storage container (2) has a conduit (5) fixedly connected to its side wall, and the other end of the conduit (5) is connected to the feed inlet of the cyclone tank (1).

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