Drying device for modified plastic particles
By designing a modified plastic pellet drying device, the jumping release mechanism in the material separation mechanism and the pretreatment box is used to solve the problem of uneven heat receiving of particles during hot air and heat exchange, and efficient drying and uniform heat receiving are achieved, and processing efficiency and product quality are improved.
Patent Information
- Application Number
- CN202421537312.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-02
AI Technical Summary
In the existing modified plastic pellet drying device, the particles are unevenly heated during hot air heat exchange, resulting in low drying efficiency and prolonged drying time.
A drying device for modified plastic particles is designed. The particles are dropped vertically and sequentially through the material separation mechanism, so that each particle can exchange heat with the hot air in the arrangement section, and the contact surface and contact time between the particles and the hot air are increased through the jumping release mechanism in the pretreatment box, and the drying effect is improved.
The uniform heating and efficient drying of modified plastic particles is achieved, which shortens the drying time and improves processing efficiency and product quality.
Smart Images
Figure CN223050390U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of modified plastic particle processing equipment, in particular to a drying device for modified plastic particles. Background Technique
[0002] Before processing, modified plastic particles need to be dried. Insufficiently dried plastic particles will release moisture during the heating process. This moisture may turn into steam and be trapped inside the plastic products, forming bubbles or voids, thus affecting the strength and appearance of the products. If there is too much moisture in the plastic particles, it may cause instability in equipment such as injection molding machines during the processing, such as pressure fluctuations, thereby affecting the processing efficiency and product quality. Some modified plastics are added with hygroscopic materials, which are very sensitive to moisture. If not dried before use, the moisture absorption of the materials will cause the product performance to decline.
[0003] Currently, the common drying method is to pour the plastic particles into a drying oven, and the particles complete drying through heat exchange with hot air in the drying oven. Although this method can complete drying, there is a problem that since all the particles are crowded together, when exchanging heat with hot air, individual particles cannot be heated evenly, thus reducing the drying efficiency and prolonging the drying time of the particles.
[0004] Therefore, it is necessary to provide a drying device for modified plastic particles to solve the above technical problems. Content of the Utility Model
[0005] In view of the above situation, to overcome the defects of the prior art, the utility model provides a drying device for modified plastic particles to solve the problem that in the existing device, since all the particles are crowded together, when exchanging heat with hot air, individual particles cannot be heated evenly, thus reducing the drying efficiency and prolonging the drying time of the particles.
[0006] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:
[0007] A drying device for modified plastic particles, comprising: a housing and a feed plate;
[0008] The right top of the housing is provided with a feed plate. The bottom of the feed plate is connected to the housing wall through a mounting rod. The right top surface of the feed plate is provided with a feed port. The left end face of the feed plate is communicated with a material distribution mechanism. The material distribution mechanism extends downward after passing through the housing. The top surface of the material distribution mechanism inside the housing is communicated with an exhaust fan through an exhaust pipe. The bottom of the material distribution mechanism is hermetically connected to a pretreatment box. The bottom of the pretreatment box is hermetically connected to a blanking box. A heating pipe is installed inside the blanking box. The heating pipe is connected to a hot air blower. The hot air blower is installed on the rear end face of the blanking box.
[0009] In one embodiment, multiple groups of the material distribution mechanism are installed side by side. The material distribution mechanism is installed and connected to the inner wall of the housing. The caliber of the material distribution mechanism allows a single particle to pass through at a time. The material distribution mechanism is composed of a guiding section, an arranging section, a blanking section, a motor, a rotating shaft, a limiting plate, a turntable, and a placing groove. The guiding section is integrally in an L-shaped structure. Its horizontal section is communicated with the feeding plate. The top surface at the junction of the horizontal section and the vertical part is connected to the air extraction pipe. The vertical part of the guiding section is connected to the top of the arranging section. The arranging section is integrally in an arc-shaped structure. The inner diameter of the arranging section is the arranging size of a single particle. The bottom of the arranging section is communicated with the middle of the top surface of the blanking section. The blanking section is integrally in a hollow cylindrical structure. Holes are opened at the centers of both sides of the blanking section. A rotating shaft is installed through the inside of the blanking section. A limiting plate is installed at the front end of the rotating shaft and is connected to the motor at the rear end. The motor is fixedly installed on the outer wall surface of the housing. A turntable is installed in each single blanking section. The turntable is installed on the rotating shaft and is driven by the rotating shaft to rotate. Placing grooves are arranged in a circular array on the outer peripheral surface of the turntable. The inner diameter of the placing groove is larger than the size of a single particle and smaller than the size of two particles.
[0010] In one embodiment, a left baffle and a right baffle are installed inside the pretreatment box. The left baffle and the right baffle are arranged in a relatively staggered manner. The left baffle and the right baffle are rectangular plate structures that slope downward. The distance between the upper and lower adjacent left baffle and right baffle is larger than the size of a single particle.
[0011] In one embodiment, the top of the blanking box is hermetically connected to the bottom of the pretreatment box through a blanking port. A guiding plate is installed below the blanking port. The guiding plate is in a triangular structure. The four corners of the guiding plate are connected to the inner wall of the blanking box through connecting plates. Material discharge ports are formed between the bottom of both sides of the guiding plate and the inner wall of the blanking box. Ventilation holes are evenly opened on the guiding plate. A heating pipe is inside the bottom surface of the guiding plate. The outlet of the heating pipe faces the guiding plate.
[0012] In one embodiment, heat insulation and heat preservation fillers are added inside both the housing and the blanking box.
[0013] The beneficial effects of the present utility model are as follows:
[0014] (1) In the present utility model, by putting particles into the feeding plate, the particles enter the arranging section from the guiding section, forming a material distribution method of falling vertically one by one. The motor drives the rotating shaft and the turntable to rotate, so that the placing grooves sequentially receive the particles above, and as they rotate, the particles are poured into the lower pretreatment box. During this period, the hot air below always exchanges heat with the particles in the arranged state, achieving the purpose of initially drying a single particle.
[0015] (2) The utility model enables the particles to fall into the pretreatment box after being divided. There is hot air inside the pretreatment box. When the particles pass through the left baffle and the right baffle in a bouncing manner, the contact area between a single particle and the hot air can be increased during the bouncing and falling process, extending the contact time. At the same time, contacting with the left baffle and the right baffle helps to shake off the cleaning water attached to the particles, improving the drying effect. Description of the Drawings
[0016] Figure 1 It is the overall structure diagram of the utility model;
[0017] Figure 2 It is the front view detail diagram of the overall internal structure of the utility model;
[0018] Figure 3 It is the detail diagram of the material distribution mechanism and the pretreatment box of the utility model;
[0019] Figure 4 It is the detail diagram of the pretreatment box of the utility model;
[0020] Figure 5 It is the detail diagram of the blanking box of the utility model.
[0021] Among them, the names corresponding to the reference numerals are: housing 1, feeding plate 2, mounting rod 21, feeding port 22, material distribution mechanism 3, guiding section 31, arranging section 32, blanking section 33, motor 34, rotating shaft 35, limiting plate 36, turntable 37, placing groove 38, exhaust fan 4, exhaust duct 41, pretreatment box 5, left baffle 51, right baffle 52, blanking box 6, guiding plate 61, connecting plate 62, discharge port 63, ventilation hole 64, hot air blower 7, heat supply pipe 71. Detailed Embodiment
[0022] The following further illustrates the utility model in conjunction with the description of the drawings and embodiments. The implementation manners of the utility model include but are not limited to the following embodiments.
[0023] As Figure 1 - Figure 2 shown, a drying device for modified plastic particles provided by the utility model includes: housing 1, feeding plate 2, material distribution mechanism 3, exhaust fan 4, pretreatment box 5, blanking box 6, hot air blower 7;
[0024] As Figure 1 - Figure 2As shown in the figure, a feed plate 2 is provided at the top right of the housing 1. The bottom of the feed plate 2 is connected to the wall surface of the housing 1 through a mounting rod 21. A feed port 22 is provided on the top right surface of the feed plate 2. The left end face of the feed plate 2 is communicated with a material distribution mechanism 3. The material distribution mechanism 3 extends downward after passing through the housing 1. The top surface of the material distribution mechanism 3 inside the housing 1 is connected to a suction fan 4 through a suction duct 41. The bottom of the material distribution mechanism 3 is hermetically connected to a pretreatment tank 5. The bottom of the pretreatment tank 5 is hermetically connected to a blanking tank 6. A heating pipe 71 is installed inside the blanking tank 6. The heating pipe 71 is connected to a hot air blower 7. The hot air blower 7 is installed on the rear end face of the blanking tank 6. During operation, particles are put into the feed plate 2, and the particles enter the material distribution mechanism 3 and then enter the pretreatment tank 5 in sequence for preheating and drying. The suction fan 4 and the hot air blower 7 cooperate to form a hot air flow channel among the material distribution mechanism 3, the pretreatment tank 5 and the blanking tank 6, which forms a counterflush with the falling of the particles to dry the particles.
[0025] Preferably, in one embodiment, as Figure 3 - Figure 4As shown in the figure, multiple groups of the material distribution mechanism 3 are installed side by side. The material distribution mechanism 3 is installed and connected to the inner wall of the housing 1. The caliber of the material distribution mechanism 3 allows a single particle to pass through at a time. The material distribution mechanism 3 is composed of a guiding section 31, an arranging section 32, a blanking section 33, a motor 34, a rotating shaft 35, a limiting plate 36, a turntable 37, and a placement groove 38. The guiding section 31 is integrally in an L-shaped structure. Its horizontal section is communicated with the feeding plate 2, and the top surface at the junction of the horizontal section and the vertical part is connected to the air extraction pipe 41. The vertical part of the guiding section 31 is connected to the top of the arranging section 32. The arranging section 32 is integrally in an arc-shaped structure. The inner diameter of the arranging section 32 is the arranging size of a single particle. The bottom of the arranging section 32 is communicated with the middle of the top surface of the blanking section 33. The blanking section 33 is integrally in a hollow cylindrical structure. Holes are opened at the centers of both sides of the blanking section 33. The rotating shaft 35 is installed through the inside of the blanking section 33. The front end of the rotating shaft 35 is installed with a limiting plate 36, and the rear end is connected to the motor 34. The motor 34 is fixedly installed on the outer wall surface of the housing 1. A turntable 37 is installed in each single blanking section 33. The turntable 37 is installed with the rotating shaft 35, and the rotating shaft 35 drives the turntable 37 to rotate. Annularly arrayed placement grooves 38 are opened on the outer peripheral surface of the turntable 37. The inner diameter of the placement groove 38 is larger than the size of a single particle and smaller than the size of two particles. During operation, the particles enter the arranging section 32 from the guiding section 31, forming a material distribution method of falling vertically one by one. The motor 34 drives the rotating shaft 35 and the turntable 37 to rotate, so that the placement grooves 38 sequentially receive the particles above, and as they rotate, the particles are poured into the lower pretreatment box 5. During this period, the hot air below always exchanges heat with the particles in the arranged state, achieving the purpose of initially drying a single particle. At the same time, because multiple groups of the material distribution mechanism 3 are arranged side by side, and the rotating and blanking method of the turntable 37 will not have a negative impact on the processing efficiency.
[0026] Preferably, in one embodiment, as Figure 4 shown, a left baffle 51 and a right baffle 52 are installed inside the pretreatment box 5. The left baffle 51 and the right baffle 52 are both arranged relatively staggeredly. The left baffle 51 and the right baffle 52 are rectangular plate structures that are inclined downward. The distance between the upper and lower adjacent left baffle 51 and right baffle 52 is larger than the size of a single particle. After the particles are distributed and fall into the pretreatment box 5, there is hot air inside the pretreatment box 5. When the particles sequentially pass through the left baffle 51 and the right baffle 52 in a jumping manner, the contact area between a single particle and the hot air can be increased during the jumping and falling process, prolonging the contact time. At the same time, contacting the left baffle 51 and the right baffle 52 helps shake off the cleaning water attached to the particles, improving the drying and drying effect.
[0027] Preferably, in one embodiment, as Figure 5As shown in the figure, the top of the blanking box 6 is hermetically connected to the bottom of the pretreatment box 5 through a blanking port 65. A guide plate 61 is installed below the blanking port 65. The guide plate 61 is in a triangular structure. The four corners of the guide plate 61 are connected to the inner wall of the blanking box 6 through connecting plates 62. An outlet 63 is formed between the bottom of both sides of the guide plate 61 and the inner wall of the blanking box 6. Ventilation holes 64 are evenly opened on the guide plate 61. Inside the bottom surface of the guide plate 61 is a heating pipe 71. The outlet of the heating pipe 71 is arranged towards the guide plate 61. During operation, the hot air blower 7 introduces hot air into the space below the guide plate 61 through the heating pipe 71. The hot air enters the blanking box 6 through the cooperation of the exhaust fan 4 and the ventilation holes 64, and the particles are dried for the third time. The dried particles enter the outlet 63 along the guide plate 61 and are discharged.
[0028] Preferably, in one embodiment, heat insulation and heat preservation fillers are additionally provided inside the housing 1 and the blanking box 6.
[0029] The working principle of the present utility model:
[0030] During operation, the particles are put into the feeding plate 2. The particles enter the arranging section 32 from the guiding section 31, forming a feeding method of falling vertically one by one. The motor 34 drives the rotating shaft 35 and the turntable 37 to rotate, so that the placing groove 38 sequentially receives the particles above, and as it rotates, the particles are poured into the lower pretreatment box 5. During this period, the hot air below always exchanges heat with the particles in the arranged state, achieving the purpose of initially drying the single particles. After the particles are separated, they fall into the pretreatment box 5. There is hot air inside the pretreatment box 5. When the particles pass through the left baffle 51 and the right baffle 52 in a jumping manner, the contact area between the single particles and the hot air can be increased during the jumping and falling process, extending the contact time. At the same time, contacting the left baffle 51 and the right baffle 52 helps to shake off the cleaning water attached to the particles, improving the drying effect. The hot air blower 7 introduces hot air into the space below the guide plate 61 through the heating pipe 71. The hot air enters the blanking box 6 through the cooperation of the exhaust fan 4 and the ventilation holes 64, and the particles are dried for the third time. The dried particles enter the outlet 63 along the guide plate 61 and are discharged.
[0031] The above embodiments are only one of the preferred embodiments of the present utility model and should not be used to limit the protection scope of the present utility model. Any meaningless changes or retouches made on the main design concept and spirit of the present utility model, as long as the technical problems solved are still the same as those of the present utility model, should be included in the protection scope of the present utility model.
Claims
1. A drying device for modified plastic particles, characterized in that: include: Shell, feed plate; A feed plate is provided on the top right side of the shell, and the bottom of the feed plate is connected to the shell wall through a mounting rod, a feed port is provided on the top right side of the feed plate, and the left end face of the feed plate is connected with a dividing mechanism, and the dividing mechanism extends downward after passing through the shell, and the top face of the dividing mechanism in the shell is connected with the exhaust fan through an exhaust pipe, and the bottom of the dividing mechanism is sealed with a pretreatment box, and the bottom of the pretreatment box is sealed with a discharge box, and a heating pipe is installed inside the discharge box, and the heating pipe is connected with a hot air blower, and the hot air blower is installed on the rear end face of the discharge box.
2. A drying device for modified plastic particles according to claim 1, characterized in that: The material distribution mechanism is installed in multiple groups side by side, and the material distribution mechanism is installed and connected to the inner wall of the shell. The caliber of the material distribution mechanism allows a single particle to pass through at a time. The material distribution mechanism is composed of a guide section, an arranging section, a blanking section, a motor, a rotating shaft, a limit plate, a turntable, and a placement groove. The guide section is an L-shaped structure as a whole, and its horizontal section is connected to the feed plate. The top surface of the intersection of the horizontal section and the vertical section is connected to the exhaust pipe. The vertical part of the guide section is connected to the top of the arranging section. The arranging section is an arc-shaped structure as a whole. The inner diameter of the arranging section is the arrangement size of a single particle. The bottom of the column section is connected to the middle of the top surface of the blanking section. The blanking section is a hollow cylindrical structure as a whole. Holes are opened at the center of both sides of the blanking section. A rotating shaft is installed through the inside of the blanking section. A limiting plate is installed on the front end of the rotating shaft, and the rear end is connected to the motor. The motor is fixedly installed on the outer wall of the shell. A turntable is installed in each blanking section. The turntable is installed with the rotating shaft and is driven to rotate by the rotating shaft. Placement grooves are opened in a circular array on the outer peripheral surface of the turntable. The inner diameter of the placement groove is larger than the size of a single particle and smaller than the size of two particles.
3. A drying device for modified plastic particles according to claim 1, characterized in that: A left baffle and a right baffle are installed inside the pretreatment box. The left baffle and the right baffle are relatively staggered. The left baffle and the right baffle are downwardly inclined rectangular plate structures. The distance between the upper and lower adjacent left baffles and right baffles is greater than the size of a single particle.
4. A drying device for modified plastic particles according to claim 3, characterized in that: The top of the discharge box is sealedly connected to the bottom of the pretreatment box through a discharge port, and a guide plate is installed below the discharge port. The guide plate has a triangular structure, and the four corners of the guide plate are connected to the inner wall of the discharge box through connecting plates. A discharge port is formed between the bottom of both sides of the guide plate and the inner wall of the discharge box, and ventilation holes are evenly opened on the guide plate. A heating pipe is arranged on the bottom surface of the guide plate, and the outlet of the heating pipe is arranged toward the guide plate.
5. A drying device for modified plastic particles according to claim 4, characterized in that: The shell and the material box are both provided with heat-insulating fillers inside.