Plastic particle cooling device
By designing a plastic particle cooling device and separating particles from water using spiral blades and screens, the problems of complex structure of the existing drying device and airflow backflow are solved, rapid cooling and stable transportation are achieved, and production costs are reduced.
Patent Information
- Application Number
- CN202422360369.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The existing plastic pellet drying devices have complex structures and high cost, and are prone to airflow backflow, causing the particles to be blown out, making it difficult to effectively cooperate with the downstream drying devices.
A plastic pellet cooling device is designed, including a cooling tank, lifting mechanism and water supply mechanism. The plastic pellets are separated from water by spiral blades and screens, and the airflow is prevented from pouring back through the lift tank, so as to achieve rapid cooling and transportation of particles.
It realizes rapid cooling and water separation of plastic particles, reduces drying costs, and effectively avoids airflow backflow, ensuring stable transport of particles.
Smart Images
Figure CN223085183U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic particle production and processing equipment, in particular to a plastic particle cooling device. Background Art
[0002] Modified plastics with different properties adopt different production processes. Some modified plastics have low density, are soft, and are easily broken in the molten state; therefore, it is difficult to adopt the production method of first extruding plastic strips, cooling the plastic strips by passing water, and then cutting them into plastic particles. The production method of such modified plastics is to directly cut them into plastic particles at the extrusion outlet, let the plastic particles fall into water for cooling, and then send the plastic particles out of the water. Using this production method, more water will remain on the surface of the plastic particles and drying treatment is required.
[0003] The existing drying method for granular materials is generally to send the materials into a tunnel oven through a conveying mesh belt for drying; this drying system has a complex structure and high cost, which will increase the production cost. Based on this, our company designed a drying device with a simpler structure, and its principle is roughly as follows: The plastic particles are put into the feeding port of the feeding pipe, and the feeding pipe is also connected to the air outlet of the blower and the air inlet of the separation tank; in this way, the air flow will carry the plastic particles along the feeding pipe into the separation tank; the water on the surface of the plastic particles will be carried away by the air flow and discharged from the cloth bag at the top of the separation tank, while the plastic particles will be discharged from the discharge port at the bottom of the separation tank. During the equipment debugging, we found that there is a problem with this drying device, that is, the air flow is likely to backflow from the feeding port of the feeding pipe, and sometimes some plastic particles put into the feeding port will be blown out in the reverse direction from the feeding port. Summary of the Invention
[0004] The purpose of the utility model is to provide a plastic particle cooling device, which can better cooperate with the downstream drying device to prevent plastic particles from being blown out due to the backflow of the air flow of the drying device.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is:
[0006] The plastic particle cooling device includes: a cooling tank, a water supply mechanism for supplying water to the cooling tank, and a lifting mechanism communicated with the water outlet of the cooling tank; wherein, the lifting mechanism includes: a lifting tank, a central shaft arranged in the lifting tank, a spiral blade fixedly connected to the central shaft, and a motor for driving the central shaft to rotate; the side wall of the lifting tank is successively provided with a discharge port, a feeding port, and a drainage port from top to bottom; the lifting mechanism is communicated with the water outlet of the cooling tank through the feeding port; a screen is arranged in the lifting tank, and the screen is located between the drainage port and the feeding port to divide the lifting tank into an upper lifting area and a lower water outlet area; the spiral blade extends upward from the screen to the top of the lifting tank.
[0007] Optionally, it further includes: a transfer tank; the drain outlet of the lifting tank drains water into the transfer tank; the water supply mechanism includes: a water pump; the inlet of the water pump is communicated with the transfer tank, and the outlet of the water pump is communicated with the water inlet of the cooling tank.
[0008] Optionally, the cooling tank extends in the front-rear direction, has a water inlet at the front part and a water outlet at the rear part; the cooling tank slopes downward from front to back.
[0009] Optionally, the water outlet of the cooling tank is higher than the feed inlet of the lifting tank, and the pipeline connecting the two includes a first corrugated hose.
[0010] Optionally, the lower end of the central shaft passes through the lifting tank and is equipped with a first pulley; the rotating shaft of the motor is equipped with a second pulley; the first pulley and the second pulley are connected by a belt to form a transmission connection; the upper and lower ends of the central shaft are respectively rotationally connected to the lifting tank through sealed bearings.
[0011] Optionally, the top of the lifting tank is provided with an open mouth and is fitted with a cover; the lifting tank is provided with an outer edge at the open mouth, and the outer edge is detachably connected to the cover.
[0012] Optionally, the inlet of the water pump is communicated with the transfer tank through a second corrugated hose.
[0013] Optionally, the discharge port of the lifting tank is communicated with the buffer tank through a third corrugated hose; the bottom of the buffer tank is provided with a flange to be communicated with the feed port of the feed pipe of the downstream drying device.
[0014] The working principle of the present utility model is as follows: This cooling device is usually used in cooperation with an upstream extruder and a downstream drying device. Specifically, the cooling tank is arranged at the extrusion outlet of the extruder to receive the cut plastic particles; the water supply mechanism supplies water to the cooling tank to cool the plastic particles; the water flow will carry the plastic particles into the lifting tank; a screen is provided in the lifting tank, the plastic particles will be intercepted by the screen, and the water flow will be discharged through the screen from the drain outlet. The spiral blade fixed to the central shaft will rotate at a high speed under the drive of the motor, so that the plastic particles intercepted by the screen are thrown towards the inner wall of the lifting tank and are pushed upward by the spiral blade; in this way, the plastic particles can be separated from the water flow, most of the water on the surface of the plastic particles can be thrown off, and the plastic particles are discharged from the discharge port at the upper part of the lifting tank. Connecting the discharge port of the lifting tank with the feed port of the feed pipe of the downstream drying device can realize feeding; at the same time, the lower part of the lifting tank is covered by the water flow, and an almost airtight space is formed at the upper part of the lifting tank, so that air can be prevented from flowing back from the feed port of the feed pipe to the discharge port of the lifting tank.
[0015] It can be seen from this that the beneficial effects of the present utility model are as follows: it can conveniently and quickly cool plastic particles, separate the plastic particles from water and send them to the downstream drying device; and it can cooperate well with the downstream drying device, effectively avoiding the plastic particles from being blown out due to the reverse flow of air in the drying device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0017] Figure 1 is a schematic structural diagram of the present utility model;
[0018] Figure 2 is an assembly schematic diagram of the lifting tank and the spiral blade;
[0019] Figure 3 is a schematic diagram of the cooperation between the present utility model and the drying device.
[0020] Reference numerals: 1, cooling tank; 2, water outlet; 3, lifting tank; 4, central shaft; 5, spiral blade; 6, motor; 7, discharge port; 8, feed port; 9, drain port; 10, screen; 11, transfer pool; 12, water pump; 13, water inlet; 14, first corrugated hose; 15, first pulley; 16, second pulley; 17, cover; 18, second corrugated hose; 19, third corrugated hose; 20, buffer tank; 21, belt; 22, separation tank; 23, blower; 24, feeding pipe; 25, feed branch pipe; 26, cloth bag; 27, horizontal section. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.
[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "front", "rear", "left", "right", etc. is based on the Figure 1 orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0023] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.
[0024] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0025] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model.
[0026] The following is combined with the attached Figure 1 ~attached Figure 3 to describe the embodiments of the present utility model in detail.
[0027] For ease of understanding the present utility model, a drying device cooperating with the present utility model is briefly described first. The drying device includes: a drying mechanism; the drying mechanism includes: a separation tank 22, a blower 23, and a feeding pipe 24 connecting the air outlet of the blower 23 to the air inlet of the separation tank 22; the feeding pipe 24 has a horizontal section 27, and a feeding branch pipe 25 extending upward is provided on the horizontal section 27; the upper port of the feeding branch pipe 25 constitutes a feeding port; the separation tank 22 includes: a cylindrical section and a hollow frustum section connected in sequence from top to bottom; the separation tank 22 has an air inlet provided at the upper part of the cylindrical section, and the air inlet direction is tangent to the cylindrical section; the separation tank 22 is provided with an exhaust port at the top and a cloth bag 26 is provided; the separation tank 22 is provided with a discharge port at the bottom.
[0028] Let the blower 23 blow air to form an air flow flowing from the blower 23 towards the separation tank 22 in the feed pipe 24. Feed the plastic particles from the feed port of the feed branch pipe 25. The plastic particles will fall from the feed branch pipe 25 into the horizontal section 27; the plastic particles falling into the horizontal section 27 will be carried by the air flow and move along the feed pipe 24 to enter the separation tank 22; the plastic particles entering the separation tank 22 will move along the circumferential direction of the separation tank 22 and gradually decelerate, and finally fall to the discharge port and be discharged; a container for collecting plastic particles can be placed at the discharge port. When the air flow carries the plastic particles and moves, it will accelerate the evaporation of the moisture on the surface of the plastic particles, thereby realizing the drying of the plastic particles; in addition, an electric heating element can also be provided at the air outlet of the blower 23. The air flow carrying water vapor mainly discharges from the exhaust port at the top of the separation tank 22.
[0029] An embodiment of the present utility model provides a plastic particle cooling device. The cooling device includes: a cooling tank 1, a water supply mechanism for supplying water to the cooling tank 1, and a lifting mechanism communicated with the water outlet 2 of the cooling tank 1. Among them, the lifting mechanism includes: a lifting tank 3, a central shaft 4 arranged in the lifting tank 3, a spiral blade 5 fixedly connected to the central shaft 4, and a motor 6 for driving the central shaft 4 to rotate. The side wall of the lifting tank 3 is sequentially provided with a discharge port 7, a feed port 8, and a drain port 9 from top to bottom. The lifting mechanism is communicated with the water outlet 2 of the cooling tank 1 through the feed port 8. A screen 10 is arranged in the lifting tank 3, and the screen 10 is located between the drain port 9 and the feed port 8 to divide the lifting tank 3 into an upper lifting area and a lower water outlet area. The spiral blade 5 extends upward from the screen 10 to the top of the lifting tank 3. It should be understood that the screen 10 usually remains fixed in the lifting tank 3 and does not rotate with the spiral blade 5.
[0030] The specific implementation manners of the present utility model are described below: This cooling device is usually used in cooperation with an upstream extruder and a downstream drying device. Specifically, the cooling tank 1 is arranged at the extrusion outlet of the extruder to receive the cut plastic particles; the water supply mechanism supplies water to the cooling tank 1 to cool the plastic particles; the water flow will carry the plastic particles into the lifting tank 3; a screen 10 is provided in the lifting tank 3, the plastic particles will be intercepted by the screen 10, and the water flow will pass through the screen 10 and be discharged from the drain port 9. The spiral blade 5 fixedly connected to the central shaft 4 will rotate at a high speed under the drive of the motor 6, so that the plastic particles intercepted by the screen 10 are thrown towards the inner wall of the lifting tank 3 and are pushed upward by the spiral blade 5; in this way, the plastic particles can be separated from the water flow, most of the water on the surface of the plastic particles can be thrown off, and the plastic particles are discharged from the discharge port 7 at the upper part of the lifting tank 3. Connecting the discharge port 7 of the lifting tank 3 with the feed port of the feed pipe 24 of the downstream drying device can achieve feeding; at the same time, the lower part of the lifting tank 3 is covered by the water flow, forming an almost airtight space at the upper part of the lifting tank 3, so that the air flow can be prevented from flowing back from the feed port of the feed pipe 24 to the discharge port 7 of the lifting tank 3. The present utility model can conveniently and quickly cool the plastic particles, separate the plastic particles from the water and send them to the downstream drying device, and can cooperate well with the downstream drying device, effectively preventing the plastic particles from being blown out due to the backflow of the air flow of the drying device.
[0031] Furthermore, it further includes: a transfer pool 11; the drain port 9 of the lifting tank 3 drains water to the transfer pool 11; the water supply mechanism includes: a water pump 12; the inlet of the water pump 12 is communicated with the transfer pool 11, and the outlet of the water pump 12 is communicated with the water inlet 13 of the cooling tank 1. It should be understood that in this way, the water can be recycled, thereby saving water and reducing costs.
[0032] Furthermore, the cooling tank 1 extends in the front-rear direction, and the water inlet 13 is arranged at the front part and the water outlet 2 is arranged at the rear part; the cooling tank 1 slopes downward from front to back. It should be understood that the cooling tank 1 slopes downward from the water inlet 13 to the water outlet 2, which can make the water flow spontaneously without the need for additional power equipment.
[0033] Furthermore, the water outlet 2 of the cooling tank 1 is higher than the feed port 8 of the lifting tank 3, and the pipeline connecting the two includes a first corrugated hose 14. It should be understood that the water outlet 2 of the cooling tank 1 being higher than the feed port 8 of the lifting tank 3 can make the water flow spontaneously without the need for additional power equipment. By providing the first corrugated hose 14, the installation positions of the cooling tank 1 and the lifting tank 3 can be more flexible and the adjustment can be more convenient.
[0034] Further, the lower end of the central shaft 4 passes through the lifting tank 3, and a first pulley 15 is installed; a rotating shaft of the motor 6 is installed with a second pulley 16; the first pulley 15 and the second pulley 16 are connected by a belt 21 to form a transmission connection; the upper and lower ends of the central shaft 4 are respectively rotatably connected to the lifting tank 3 through sealed bearings.
[0035] Further, the top of the lifting tank 3 is provided with an open mouth, and a cover 17 is adapted to it; the lifting tank 3 is provided with an outer edge at the open mouth, and the outer edge is detachably connected to the cover 17. It should be understood that the detachable cover 17 is provided at the top of the lifting tank 3, which is convenient for later maintenance and repair; it is also convenient for workers to observe the situation inside the lifting tank 3 when needed. The cover 17 and the outer edge are generally connected by bolts or snap structures.
[0036] Further, the inlet of the water pump 12 is communicated with the transfer pool 11 through a second corrugated hose 18. It should be understood that by providing the second corrugated hose 18, the installation position of the water pump 12 can be made more flexible and the adjustment is more convenient.
[0037] Further, the discharge port 7 of the lifting tank 3 is communicated with the buffer tank 20 through a third corrugated hose 19; the bottom of the buffer tank 20 is provided with a flange to communicate with the feed port of the feed pipe 24 of the downstream drying device. It should be understood that by providing the third corrugated hose 19, the connection between the present invention and the downstream drying device can be made more flexible, and the accuracy requirement for the installation position is lower.
[0038] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that without departing from the principles and essence of the present invention, various changes or modifications can be made to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.
Claims
1. Plastic particle cooling device, characterized in that, Comprising: Cooling tank (1); And A water supply mechanism for supplying water to the cooling tank (1); And A lifting mechanism communicated with the water outlet (2) of the cooling tank (1); Wherein, The lifting mechanism includes: a lifting tank (3), a central shaft (4) disposed in the lifting tank (3), a spiral blade (5) fixedly connected to the central shaft (4), and a motor (6) for driving the central shaft (4) to rotate; The side wall of the lifting tank (3) is successively provided with a discharge port (7), a feed port (8), and a drain port (9) from top to bottom; The lifting mechanism is communicated with the water outlet (2) of the cooling tank (1) through the feed port (8); A screen (10) is disposed in the lifting tank (3), and the screen (10) is located between the drain port (9) and the feed port (8) to divide the lifting tank (3) into an upper lifting area and a lower water outlet area; The spiral blade (5) extends upward from the screen (10) to the top of the lifting tank (3).
2. The plastic particle cooling device according to claim 1, wherein: It further includes: a transfer tank (11); The drain port (9) of the lifting tank (3) drains water to the transfer tank (11); The water supply mechanism includes: a water pump (12); The inlet of the water pump (12) is communicated with the transfer tank (11), and the outlet of the water pump (12) is communicated with the water inlet (13) of the cooling tank (1).
3. The plastic particle cooling device according to claim 2, wherein: The cooling tank (1) extends in the front-rear direction, and the water inlet (13) is disposed at the front part and the water outlet (2) is disposed at the rear part; the cooling tank (1) slopes downward from front to back.
4. The plastic particle cooling device according to claim 3, wherein: The water outlet (2) of the cooling tank (1) is higher than the feed port (8) of the lifting tank (3), and the pipeline connecting the two includes a first corrugated hose (14).
5. The plastic particle cooling device according to claim 4, wherein: The lower end of the central shaft (4) passes through the lifting tank (3) and is provided with a first pulley (15); The rotating shaft of the motor (6) is provided with a second pulley (16); The first pulley (15) and the second pulley (16) are connected by a belt (21) to form a transmission connection; The upper and lower ends of the central shaft (4) are respectively rotationally connected to the lifting tank (3) through sealed bearings.
6. The plastic particle cooling device according to claim 5, wherein: The top of the lifting tank (3) is provided with an open mouth and is fitted with a cover (17); The lifting tank (3) is provided with an outer edge at the open mouth, and the outer edge is detachably connected to the cover (17).
7. The plastic particle cooling device according to any one of claims 2 to 6, wherein: The inlet of the water pump (12) is communicated with the transfer tank (11) through a second corrugated hose (18).
8. The plastic particle cooling device according to any one of claims 2 to 6, wherein: The discharge port (7) of the lifting tank (3) is communicated with a buffer tank (20) through a third corrugated hose (19); The bottom of the buffer tank (20) is provided with a flange to communicate with the feeding port of the feeding pipe (24) of the downstream drying device.