Drum-type drying equipment

Abstract

The utility model discloses drum type drying equipment which comprises a supporting structure and a drum drying assembly, and the supporting structure comprises a supporting base, a supporting assembly and a driving assembly. The roller drying assembly comprises an outer barrel, a heating drying rod and an inner barrel, and the inner barrel is further connected with a discharging box. Through the arrangement of the gear ring, the inner cylinder is driven to roll on the limiting ring, so that recycled plastic materials can be heated at different angles, and the drying speed is higher; through the arrangement of a discharging hopper, the dried plastic can be conveniently and automatically discharged, meanwhile, impurities can be discharged through an impurity discharging hopper, and the practicability is high; the temperature of the inner barrel can be kept through the heating cavity, the heat utilization rate can be improved, the plastic recycled materials rotate in the inner barrel and turn over to flow downwards under the action of the stirring plate, the plastic recycled materials are suspended in the turning process, the contact area with hot air can be increased, and the drying efficiency of the roller is further improved.

Description

Technical Field

[0001] This utility model relates to the field of dryers, and in particular to a drum-type dryer. Background Technology

[0002] To achieve resource recycling and alleviate environmental pressure, waste plastic products are usually recycled and reprocessed into recycled plastics. When recycling waste plastics, the plastics need to be heat-melted, molded, and dried, and then plastic granules are obtained through injection molding. This process of recycling waste plastics is achieved. Before the plastics are heat-melted and molded, recycled plastic drying equipment is needed to dry the recycled plastic materials.

[0003] Currently, most plastic recycled pellet production lines on the market use direct heating drying devices. This typically involves fixing the product and placing it as a whole into a fixed drying chamber. However, this method has poor heating efficiency; sometimes the corners of the device are difficult to dry, resulting in uneven drying. Furthermore, the contact area between the material and hot air is small during drying, leading to uneven heating, low drying efficiency, and easy heat loss, resulting in resource waste. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a drum-type drying device.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a drum-type drying device, including a support structure and a drum drying assembly mounted on the support structure. The support structure includes a support base, several support components, and a drive assembly. The support components are distributed on both sides of the drum drying assembly, and the drum drying assembly is fixed to the support base by the support components. The drum drying assembly includes an outer cylinder and several heating drying rods. An inner cylinder is rotatably connected to the inner side of the outer cylinder, and a heating chamber is formed between the outer cylinder and the inner cylinder. The inner wall of the outer cylinder is fixedly connected to the heating drying rods. Several feed guide plates are provided at one end of the inner side of the inner cylinder, and several flow guide plates are also fixedly connected to the inner wall of the inner cylinder. A stirring plate is fixedly connected to the middle of the inner wall of the inner cylinder, and a discharge box is connected to the end of the inner cylinder. The bottom of the discharge box is provided with an impurity discharge hopper and a discharge hopper.

[0007] As a preferred embodiment of this utility model, there are multiple heating and drying rods, which are arranged in a ring array around the outer cylinder, and both ends of the heating and drying rods are detachably connected to the inner wall of the outer cylinder.

[0008] As a preferred embodiment of this utility model, the inner cylinder is provided with a feed inlet at one end, the feed guide plates are distributed in a ring array along the feed inlet, the feed guide plates are curved in shape, the end positions of the feed guide plates correspond one-to-one with the end positions of the flow guide plates, and the flow guide plates are distributed in a ring array along the inner wall of the inner cylinder.

[0009] As a preferred embodiment of this utility model, the support assembly includes a first support base and a limiting roller. The limiting roller is rotatably connected to the first support base. A limiting ring matching the limiting roller is fixed on the outer surface of the inner cylinder. The limiting ring is tumbledly connected to the limiting roller. The limiting ring and the outer surface of the inner cylinder are fixedly connected by several U-shaped brackets evenly distributed along the circumference of the inner cylinder.

[0010] As a preferred embodiment of this utility model, the drive assembly includes a second support base and a servo motor. The servo motor is mounted on the second support base. A reducer is mounted at the end of the output shaft of the servo motor. A transmission gear is mounted at the output end of the reducer. A gear ring that matches the transmission gear is fixed on the outer surface of the inner cylinder. The transmission gear meshes with the gear ring. The gear ring and the outer surface of the inner cylinder are fixedly connected by several U-shaped brackets.

[0011] As a preferred embodiment of this utility model, the number of stirring plates is multiple, and the shape of the stirring plates is a V-shaped structure formed by welding multiple blades in a certain order. The multiple stirring plates are evenly distributed on the inner wall of the inner cylinder along the center of the inner cylinder.

[0012] As a preferred embodiment of this utility model, a plurality of filter grooves are provided on the side wall at the end of the inner cylinder relative to the discharge box. The filter grooves are distributed in a circular array along the circumference of the inner cylinder, and the bottom of the discharge box is connected to the impurity discharge hopper.

[0013] As a preferred embodiment of this utility model, the discharge hopper is welded and fixed below the discharge box and communicates with it, and the top of the discharge box is also provided with an exhaust hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. The gear ring drives the inner cylinder to rotate on the limiting ring, which prevents the drying cylinder from deviating from its position. The heating drying rod heats and dries the plastic inside the inner cylinder, allowing the recycled plastic material to be heated at different angles, thus speeding up the drying process. In addition, the discharge hopper facilitates the automatic discharge of the dried plastic, and impurities generated during the drying process can be discharged through the impurity discharge hopper, making it highly practical.

[0016] 2. The heating chamber helps maintain the temperature of the inner cylinder, which is beneficial to improving heat utilization. The recycled plastic material rotates inside the inner cylinder and is turned over and flows downward under the action of the stirring plate. During the turning process, the recycled plastic material is suspended and further dried by hot air. In this way, the contact area between the recycled plastic material and the hot air and the stirring plate can be increased during the turning process, which further improves the efficiency of drum drying. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is the front view of this utility model;

[0020] Figure 3 This is a side view of the present invention;

[0021] Figure 4 This is a longitudinal cross-sectional structural diagram of the present invention;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of this utility model;

[0023] In the diagram: 1. Support structure; 2. Drum drying assembly; 3. Support base; 4. Support assembly; 5. Drive assembly; 6. Feed inlet; 7. Discharge box; 8. Impurity discharge hopper; 9. Discharge hopper; 10. Filter tank; 21. Outer cylinder; 22. Heating drying rod; 23. Inner cylinder; 24. Heating chamber; 25. Feed guide plate; 26. Guide plate; 27. Stirring plate; 41. First support seat; 42. Limiting roller; 43. Limiting ring; 44. U-shaped bracket; 51. Second support seat; 52. Servo motor; 53. Reducer; 54. Transmission gear; 55. Gear ring. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] In the attached diagram, all identical reference numerals refer to the same components.

[0026] like Figure 1-5 As shown, this utility model provides a drum-type drying device, including a support structure 1 and a drum drying assembly 2 installed on the support structure 1.

[0027] The support structure 1 includes a support base 3, several support components 4 and a drive component 5. The support components 4 are distributed on both sides of the drum drying component 2. The drum drying component 2 is fixed to the support base 3 through the support components 4 and can roll relative to the support components 4.

[0028] Please see Figure 4-5 The drum drying assembly 2 includes an outer cylinder 21 and several heating drying rods 22. An inner cylinder 23 is rotatably connected to the inner side of the outer cylinder 21. A heating chamber 24 is formed between the outer cylinder 21 and the inner cylinder 23. The inner wall of the outer cylinder 21 is fixedly connected to the heating drying rods 22. Several feed guide plates 25 are provided at one end of the inner side of the inner cylinder 23. Several flow guide plates 26 are also fixedly connected to the inner wall of the inner cylinder 23. A stirring plate 27 is fixedly connected to the middle of the inner wall of the inner cylinder 23. A discharge box 7 is also connected to the end of the inner cylinder 23. An impurity discharge hopper 8 and a discharge hopper 9 are provided at the bottom of the discharge box 7.

[0029] The method of using this utility model is as follows:

[0030] 1. Plastic recycled material is fed into the inner cylinder 23 through the feed port 6 via an external conveyor belt (not shown). The servo motor 52 is turned on and drives the transmission gear 54 to rotate through the reducer 53, thereby driving the gear ring 55 to rotate and causing the inner cylinder 23 to start rotating. At the same time, the heating drying rod 22 heats the heating chamber 24, thereby raising the temperature of the inner cylinder 23.

[0031] 2. The recycled plastic material entering the inner cylinder 23 spirals forward along the feed guide plate 25 on the inner wall of the inner cylinder 23 and reaches the guide plate 26, where it continues to be conveyed forward. In the middle section of the inner cylinder 23, the recycled plastic material comes into full contact with the stirring plate 27 and is simultaneously turned over. In this way, the recycled plastic material is suspended in the air during the turning process and is further dried by hot air.

[0032] 3. After drying, the plastic recycled material gradually moves towards the discharge box 7 under the rotation drive of the inner cylinder 23. Powder and other impurities in the plastic recycled material are screened by the filter tank 10 and discharged from the impurity discharge hopper. The remaining usable plastic recycled material is discharged from the discharge hopper 9.

[0033] For further details, please refer to Figure 4 There are multiple heating and drying rods 22, which are arranged in a ring array around the outer cylinder 21, and the two ends of the heating and drying rods 22 are detachably connected to the inner wall of the outer cylinder 21.

[0034] In this embodiment, the hot drying rod 22 can uniformly heat the heating chamber 24, thereby ensuring that the inner surface of the inner cylinder 23 is heated at a uniform temperature. The heat is transferred to the stirring plate 27 through the inner cylinder 23, thereby increasing the contact area between the recycled plastic material and the hot air and the stirring plate 27 during the turning process, which can further dry the material and improve the efficiency of the drum drying.

[0035] Furthermore, the inner cylinder 23 is provided with a feed inlet 6 at one end, and the feed guide plate 25 is distributed in a ring array along the feed inlet 6. The feed guide plate 25 has an arc-shaped curved surface. The end position of the feed guide plate 25 corresponds one-to-one with the end position of the guide plate 26. The guide plate 26 is distributed in a ring array along the inner wall of the inner cylinder 23.

[0036] In this embodiment, the surface of the feed guide plate 25 is bent with a certain curvature, which can increase the contact area with the plastic recycled material, increase the smoothness of conveying, and prevent the material from accumulating in a local area. The end of the feed guide plate 25 is connected to the beginning of the guide plate 26, which is conducive to the continuous transfer of material.

[0037] For further details, please refer to Figure 2 The support assembly 4 includes a first support base 41 and a limiting roller 42. The limiting roller 42 is rotatably connected to the first support base 41. A limiting ring 43 matching the limiting roller 42 is fixed on the outer surface of the inner cylinder 23. The limiting ring 43 is rotatably connected to the limiting roller 42. The limiting ring 43 is fixedly connected to the outer surface of the inner cylinder 23 by several U-shaped brackets 44 evenly distributed along the circumference of the inner cylinder 23.

[0038] In this embodiment, two support components 4 are provided, located at both ends of the inner cylinder 23 respectively. The limiting rollers 42 are disposed below the inner cylinder 23 and are symmetrically arranged. The surface of the limiting rollers 42 is in rolling connection with the surface of the limiting rings 43 on the surface of the inner cylinder 23 to support the rolling of the inner cylinder 23. The inner side of the limiting rings 43 is connected to the U-shaped brackets 44 by bolts, and the bottom of the U-shaped brackets 44 is welded to the outer surface of the inner cylinder 23.

[0039] For further details, please refer to Figure 2 The drive assembly 5 includes a second support base 51 and a servo motor 52. The servo motor 52 is mounted on the second support base 51. A reducer 53 is mounted on the end of the output shaft of the servo motor 52. A transmission gear 54 is mounted on the output end of the reducer 53. A gear ring 55 that matches the transmission gear 54 is fixed on the outer surface of the inner cylinder 23. The transmission gear 54 meshes with the gear ring 55. The gear ring 55 is fixedly connected to the outer surface of the inner cylinder 23 by several U-shaped brackets 44.

[0040] In this embodiment, the bottom of the servo motor 52 is fixed to the second support base 51 by bolts, the inner surface of the gear ring 55 is fixed to the U-shaped bracket 44 by bolts, the gear ring 55 is coaxially arranged with the inner cylinder 23, and the gear ring 55 is driven to rotate by the transmission gear 54, thereby driving the inner cylinder 23 to rotate.

[0041] For further details, please refer to Figure 3 There are multiple stirring plates 27. The stirring plates 27 are V-shaped structures formed by welding multiple blades in a certain order. The multiple stirring plates 27 are evenly distributed on the inner wall of the inner cylinder 23 along the center of the cylinder.

[0042] For further details, please refer to Figure 5 Multiple filter grooves 10 are provided on the side wall at the end of the inner cylinder 23 relative to the discharge box 7. The filter grooves 10 are distributed in a circular array along the circumference of the inner cylinder 23. The bottom of the discharge box 7 is connected to the impurity discharge hopper 8.

[0043] In this embodiment, the filter tanks 10 are arranged in two rows, connected end to end, to increase the filtration area and thus improve filtration efficiency. The width of the filter tanks is determined according to the diameter of impurities in the plastic recycling material being screened. Multiple filter tanks 10 are closely arranged and rotate together with the inner cylinder 23, thereby improving the screening effect on impurities in the recycled material.

[0044] For further details, please refer to Figure 5 The discharge hopper 8 is welded and fixed below the discharge box 7 and connected to it. The top of the discharge box 7 is also provided with an exhaust hole, which corresponds to the position of the discharge hopper 8.

[0045] This utility model is a drum-type drying device. Through the setting of the toothed ring, the inner cylinder is driven to rotate on the limiting ring, which heats and dries the plastic inside the inner cylinder. It can heat the plastic recycled material at different angles, making the product dry faster. At the same time, through the design of the stirring plate, the contact area between the plastic recycled material and the hot air and the stirring plate can be increased during the tumbling process, further improving the drum drying efficiency.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drum-type drying device, comprising a support structure (1) and a drum drying assembly (2) mounted on the support structure (1), characterized in that, The support structure (1) includes a support base (3), several support components (4), and a drive component (5). The support components (4) are distributed on both sides of the drum drying assembly (2), and the drum drying assembly (2) is fixed to the support base (3) by the support components (4). The drum drying assembly (2) includes an outer cylinder (21) and several heating drying rods (22). An inner cylinder (23) is rotatably connected to the inner side of the outer cylinder (21). The outer cylinder (21) and the inner cylinder (23) are connected to each other. A heating chamber (24) is formed between the inner cylinder (21) and the heating drying rod (22). The inner side wall of the outer cylinder (21) is fixedly connected to the heating drying rod (22). A number of feed guide plates (25) are provided at one end of the inner side of the inner cylinder (23). A number of flow guide plates (26) are also fixedly connected to the inner side wall of the inner cylinder (23). A stirring plate (27) is fixedly connected to the middle of the inner side wall of the inner cylinder (23). A discharge box (7) is also connected to the end of the inner cylinder (23). An impurity discharge hopper (8) and a discharge hopper (9) are provided at the bottom of the discharge box (7).

2. The drum-type drying equipment according to claim 1, characterized in that, The number of heating and drying rods (22) is multiple, and the multiple heating and drying rods (22) are arranged in a ring array around the outer cylinder (21), and the two ends of the heating and drying rods (22) are detachably connected to the inner wall of the outer cylinder (21).

3. The drum-type drying equipment according to claim 1, characterized in that, The inner cylinder (23) is provided with a feed inlet (6) at one end. The feed guide plate (25) is arranged in a ring array along the feed inlet (6). The feed guide plate (25) has an arc-shaped curved surface. The end position of the feed guide plate (25) corresponds one-to-one with the end position of the guide plate (26). The guide plate (26) is arranged in a ring array along the inner wall of the inner cylinder (23).

4. The drum-type drying equipment according to claim 1, characterized in that, The support assembly (4) includes a first support base (41) and a limiting roller (42). The limiting roller (42) is rotatably connected to the first support base (41). A limiting ring (43) matching the limiting roller (42) is fixed on the outer surface of the inner cylinder (23). The limiting ring (43) is tumbledly connected to the limiting roller (42). The limiting ring (43) is fixedly connected to the outer surface of the inner cylinder (23) by several U-shaped brackets (44) evenly distributed along the circumference of the inner cylinder (23).

5. A drum-type drying device according to claim 4, characterized in that, The drive assembly (5) includes a second support base (51) and a servo motor (52). The servo motor (52) is mounted on the second support base (51). A reducer (53) is mounted at the end of the output shaft of the servo motor (52). A transmission gear (54) is mounted at the output end of the reducer (53). A gear ring (55) matching the transmission gear (54) is fixed on the outer surface of the inner cylinder (23). The transmission gear (54) meshes with the gear ring (55). The gear ring (55) is fixedly connected to the outer surface of the inner cylinder (23) by several U-shaped brackets (44).

6. A drum-type drying device according to claim 1, characterized in that, The number of stirring plates (27) is multiple, and the shape of the stirring plates (27) is a V-shaped structure formed by welding multiple blades in a certain order. The multiple stirring plates (27) are evenly distributed on the inner wall of the inner cylinder (23) along the center.

7. A drum-type drying device according to claim 1, characterized in that, Multiple filter grooves (10) are provided on the side wall at the end of the inner cylinder (23) relative to the discharge box (7). The filter grooves (10) are arranged in a circular array along the circumference of the inner cylinder (23). The bottom of the discharge box (7) is connected to the impurity discharge hopper (8).

8. A drum-type drying device according to claim 1, characterized in that, The discharge hopper (9) is welded and fixed below the discharge box (7) and communicates with it. The top of the discharge box (7) is also provided with an exhaust hole.

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