A cooling and drying apparatus for plastic particles

Abstract

The utility model discloses a kind of cooling and drying equipment for plastic particles, it is related to plastic particle production technical field, including drying outer tube, still including the partition inner cover of being set in drying outer tube, the below of partition inner cover is equipped with feeding area, the above of partition inner cover is equipped with discharge area, feeding area is equipped with plastic particle lifting mechanism and air cooling mechanism, the bottom of drying outer tube is fixed with base;A kind of cooling and drying equipment for plastic particles provided by the utility model, by setting partition inner cover in drying outer tube to form feeding area and discharge area, and being equipped with plastic particle lifting mechanism, air cooling mechanism and the like components, the efficient cooling and drying of plastic particles is realized, reduce energy consumption while enhancing cooling and drying effect, stable operation, easy maintenance, it is favorable for reducing production cost, improve enterprise economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of plastic granule production technology, specifically a cooling and drying device for plastic granules. Background Technology

[0002] In the plastics processing industry, the cooling and drying of plastic granules is a key step in the production process.

[0003] Existing plastic granule cooling and drying equipment mostly employs a single cooling or drying method, resulting in low efficiency and difficulty in meeting the demands of large-scale production. In some cases, insufficient contact between the plastic granules and the cooling medium or drying gas during the cooling and drying process leads to uneven cooling and drying effects, affecting the quality of the plastic granules and hindering the long-term development and economic benefits of enterprises. Therefore, there is an urgent need for a high-efficiency, energy-saving plastic granule cooling and drying equipment with excellent cooling and drying performance. Utility Model Content

[0004] This invention provides a cooling and drying device for plastic granules, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cooling and drying device for plastic granules includes a drying outer cylinder and a partitioned inner cover disposed inside the drying outer cylinder. A feeding area is provided below the partitioned inner cover, and a discharging area is provided above the partitioned inner cover. A plastic granule lifting mechanism and an air-cooling mechanism are provided in the feeding area, and a base is fixedly provided at the bottom inside the drying outer cylinder.

[0007] A feed pipe is fixedly connected to one side of the drying outer cylinder, and the feed pipe extends into the feed area;

[0008] The plastic pellet lifting mechanism includes a lifting cylinder, which is fixedly connected to the base. A rotating shaft is coaxially arranged inside the lifting cylinder, and a spiral lifting plate is fixedly arranged outside the rotating shaft. The bottom of the lifting cylinder extends into the base. Multiple feeding grooves are provided between the top surface of the base outside the lifting cylinder and the bottom end inside the lifting cylinder. The bottom inside the lifting cylinder is connected to the feeding area through the feeding grooves.

[0009] An annular pipe is fixedly installed in the feeding area, and an air inlet pipe is fixedly connected to one side of the annular pipe, which extends to the outside of the drying outer cylinder.

[0010] The discharge area is provided with a discharge guide chute, which is located between the inner partition cover and the outer drying cylinder. The discharge guide chute is spiral-shaped, and the output end of the discharge guide chute is fixedly connected to a discharge pipe, which extends to the outside of the outer drying cylinder.

[0011] As a preferred embodiment of this utility model, the spiral lifting plate is provided with multiple baffles at intervals.

[0012] As a preferred embodiment of this utility model, an exhaust pipe is fixedly provided on the top of the drying outer cylinder, and an air inlet pipe is connected to an external low-temperature air source.

[0013] As a preferred embodiment of this utility model, the top of the inner partition cover is provided with an inclined surface, and a circumferentially distributed baffle is fixedly provided on the inclined surface.

[0014] As a preferred technical solution of this utility model, a drive motor is fixedly provided at the bottom end of the base, and the output shaft of the drive motor is coaxially and fixedly connected to the rotation shaft.

[0015] As a preferred embodiment of this utility model, the output end of the feed pipe is provided with a check valve.

[0016] This utility model has the following advantages: The cooling and drying equipment for plastic granules provided by this utility model forms a feeding zone and a discharging zone by setting a partitioned inner cover inside the drying outer cylinder, and is equipped with components such as a plastic granule lifting mechanism and an air-cooling mechanism, so as to achieve efficient cooling and drying of plastic granules. The spiral lifting plate of the plastic granule lifting mechanism, together with the baffle plate, can make full contact between the plastic granules and the cold air blown out by the air-cooling mechanism during the lifting process, thereby improving the cooling efficiency. The spiral discharge guide channel increases the residence time of the plastic granules in the discharge zone, further ensuring the drying effect. The air inlet pipe is connected to a low-temperature air source, and the exhaust pipe discharges hot and humid gas, forming a good gas circulation, which enhances the cooling and drying effect while reducing energy consumption. It is stable in operation, easy to maintain, and conducive to reducing production costs and improving the economic benefits of enterprises. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external three-dimensional structure of a cooling and drying equipment for plastic granules.

[0018] Figure 2 This is a three-dimensional cross-sectional view of a cooling and drying equipment for plastic granules.

[0019] Figure 3 This is a schematic diagram of the discharge guide trough in a cooling and drying equipment for plastic granules.

[0020] In the diagram: 1. Drying outer cylinder; 2. Feed pipe; 3. Air inlet pipe; 4. Discharge pipe; 5. Exhaust pipe; 6. Inner partition cover; 7. Base; 8. Lifting cylinder; 9. Rotating shaft; 10. Spiral lifting plate; 11. Baffle plate; 12. Drive motor; 13. Feed trough; 14. Annular pipe; 15. Baffle bar; 16. Discharge guide trough. Detailed Implementation

[0021] 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.

[0022] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Please see Figure 1-3 A cooling and drying device for plastic granules includes a drying outer cylinder 1 and a partitioned inner cover 6 disposed inside the drying outer cylinder 1. A feeding area is provided below the partitioned inner cover 6 and a discharging area is provided above the partitioned inner cover 6. A plastic granule lifting mechanism and an air cooling mechanism are provided in the feeding area. A base 7 is fixedly provided at the bottom inside the drying outer cylinder 1.

[0024] A feed pipe 2 is fixedly connected to one side of the drying outer cylinder 1, extending into the feeding area to transport plastic granules. During use, the plastic granules enter the feeding area through the feed pipe 2, which is fixedly connected to one side of the drying outer cylinder 1 and extends into the feeding area. A check valve is installed at the output end of the feed pipe 2 to prevent backflow of granules and air, ensuring the stability and directionality of the granule transport.

[0025] The plastic pellet lifting mechanism includes a lifting cylinder 8, which is fixedly connected to a base 7. A rotating shaft 9 is coaxially mounted inside the lifting cylinder 8, and a spiral lifting plate 10 is fixedly mounted on the outside of the rotating shaft 9. The bottom of the lifting cylinder 8 extends into the base 7. Multiple feeding troughs 13 are provided between the top surface of the base 7 (outside the lifting cylinder 8) and the bottom end inside the lifting cylinder 8. The bottom of the lifting cylinder 8 is connected to the feeding area through the feeding troughs 13. A drive motor 12 is fixedly mounted at the bottom end of the base 7, and the output shaft of the drive motor 12 is coaxially fixedly connected to the rotating shaft 9. During operation, the drive motor 12 fixed at the bottom end of the base 7 starts, and its output shaft drives the spiral lifting plate 10, coaxially fixedly connected to the rotating shaft 9, to rotate inside the lifting cylinder 8. Plastic pellets entering the feeding area enter the lifting cylinder 8 through the feeding troughs 13 on the base 7, and then rise along the lifting cylinder 8 under the action of the spiral lifting plate 10. To prevent the plastic granules from rolling off during the lifting process, multiple baffles 11 are spaced apart on the spiral lifting plate 10 to block the plastic granules during the lifting process, ensuring that the granules can be lifted smoothly and fully contact the cold air during the lifting process to achieve cooling and drying.

[0026] An annular pipe 14 is fixedly installed in the feeding zone. An air inlet pipe 3 is fixedly connected to one side of the annular pipe 14 and extends to the outside of the drying outer cylinder 1. The air inlet pipe 3 is connected to an external low-temperature air source. During the lifting process of the plastic granules, the annular pipe 14 fixed in the feeding zone introduces the external low-temperature air source through the air inlet pipe 3. The low-temperature gas is ejected from the annular pipe 14 to cool the rising plastic granules, forming the air-cooling mechanism of the equipment and effectively reducing the temperature of the plastic granules.

[0027] A discharge guide chute 16 is provided in the discharge zone, located between the inner partition cover 6 and the outer drying cylinder 1. The discharge guide chute 16 is spiral-shaped, and a discharge pipe 4 is fixedly connected to the output end of the discharge guide chute 16, extending to the outside of the outer drying cylinder 1. The cooled plastic granules rise to the top of the inner partition cover 6, which has an inclined surface. Circularly distributed baffles 15 are fixed on the inclined surface. When the plastic granules rise to the top of the inner partition cover 6, the inclined surface, in conjunction with the baffles 15, collides with the plastic granules, causing them to separate and preventing adhesion. This further improves the cooling and drying effect of the plastic granules. The plastic granules then smoothly enter the spiral discharge guide chute 16 in the discharge zone, slide within the chute, and are finally discharged through the discharge pipe 4.

[0028] In addition, an exhaust pipe 5 is fixedly installed on the top of the drying outer cylinder 1. During equipment operation, the hot and humid gas generated during the drying process is discharged through the exhaust pipe 5 fixed on the top of the drying outer cylinder 1, forming a good gas circulation and ensuring efficient and stable operation of the equipment.

[0029] When implementing this utility model, the equipment is first started, and external plastic particles enter the feeding area through the feed pipe 2. Due to the function of the check valve at the output end of the feed pipe 2, the particles will not flow back.

[0030] At this time, the drive motor 12 at the bottom of the base 7 starts, driving the rotating shaft 9 to rotate the spiral lifting plate 10 inside the lifting cylinder 8. The plastic particles enter the lifting cylinder 8 through the feed chute 13 and rise along the lifting cylinder 8 under the action of the spiral lifting plate 10 and the baffle plate 11.

[0031] Meanwhile, the air intake pipe 3 is connected to an external low-temperature gas source, and the low-temperature gas is ejected through the annular pipe 14 to cool the plastic particles during the upward process.

[0032] After cooling, the plastic granules rise to the top of the inner partition cover 6, where they separate from each other under the action of its inclined surface and the baffle 15. They then enter the discharge guide 16, slide along the spiral discharge guide 16, and are finally discharged from the equipment through the discharge pipe 4.

[0033] Throughout the process, the hot and humid gas generated during drying is discharged through exhaust pipe 5, ensuring a good gas circulation environment inside the equipment and ensuring that the equipment continuously, efficiently and stably cools and dries the plastic granules.

[0034] 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 cooling and drying device for plastic granules, comprising a drying outer cylinder (1), characterized in that, It also includes a partitioned inner cover (6) set inside the drying outer cylinder (1), with a feeding area below the partitioned inner cover (6) and a discharge area above the partitioned inner cover (6). The feeding area is equipped with a plastic particle lifting mechanism and an air cooling mechanism, and a base (7) is fixedly provided at the bottom inside the drying outer cylinder (1). A feed pipe (2) is fixedly connected to one side of the drying outer cylinder (1), and the feed pipe (2) extends into the feed area; The plastic granule lifting mechanism includes a lifting cylinder (8), which is fixedly connected to a base (7). A rotating shaft (9) is coaxially provided inside the lifting cylinder (8), and a spiral lifting plate (10) is fixedly provided outside the rotating shaft (9). The bottom of the lifting cylinder (8) extends into the base (7). Multiple feeding grooves (13) are provided between the top surface of the base (7) outside the lifting cylinder (8) and the bottom end inside the lifting cylinder (8). The bottom inside the lifting cylinder (8) is connected to the feeding area through the feeding grooves (13). An annular pipe (14) is fixedly installed in the feeding area. An air inlet pipe (3) is fixedly connected to one side of the annular pipe (14). The air inlet pipe (3) extends to the outside of the drying outer cylinder (1). The discharge area is provided with a discharge guide trough (16), which is located between the inner partition cover (6) and the outer drying cylinder (1). The discharge guide trough (16) is spiral-shaped, and the output end of the discharge guide trough (16) is fixedly connected to a discharge pipe (4), which extends to the outside of the outer drying cylinder (1).

2. The cooling and drying equipment for plastic granules according to claim 1, characterized in that, The spiral lifting plate (10) is provided with multiple baffles (11) at intervals.

3. The cooling and drying equipment for plastic granules according to claim 1, characterized in that, The top of the drying outer cylinder (1) is fixedly equipped with an exhaust pipe (5) and an air inlet pipe (3) connected to an external low-temperature air source.

4. The cooling and drying equipment for plastic granules according to claim 1, characterized in that, The top of the inner partition cover (6) is provided with an inclined surface, and a circumferentially distributed baffle (15) is fixed on the inclined surface.

5. The cooling and drying equipment for plastic granules according to claim 1, characterized in that, The bottom end of the base (7) is fixedly provided with a drive motor (12), and the output shaft of the drive motor (12) is coaxially and fixedly connected with the rotating shaft (9).

6. The cooling and drying equipment for plastic granules according to claim 1, characterized in that, The output end of the feed pipe (2) is equipped with a check valve.

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