Product treatment device for plastic particle production

Abstract

The utility model belongs to the technical field of waste plastic regeneration processing, and particularly discloses a product processing device for plastic particle production, which comprises a processing box, the upper end of the processing box is connected with a feed hopper, the left side of the processing box is connected with a hot air generator, the right side of the processing box is provided with a discharge port, and the bottom of the processing box is provided with a dust discharge port. The two sides and the lower end of the dust collecting hopper are connected with the interior of the treatment box through springs, the bottom of the dust collecting hopper is connected with a vibration motor, and one side of the dust discharging opening is fixedly connected with an air exhaust mechanism. By arranging the sieve plate, the hot air generator and the vibration motor, the vibration motor drives the sieve plate to vibrate to screen plastic regeneration particles, dust is separated out, the hot air generator continuously blows hot air to the plastic regeneration particles on the sieve plate, and moisture carried by the plastic regeneration particles is removed; and dust and water removal treatment can be carried out on the plastic regenerated particles at the same time, and the plastic regenerated particle product treatment efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste plastic recycling and processing, and specifically relates to a product treatment device for plastic pellet production. Background Technique

[0002] Plastic recycled pellets are products made by processing waste plastics into granular form. They are a type of plastic pellets and can be used as raw materials for the production of building materials, packaging materials, household items, plastic parts, etc. Plastic recycled pellets are made from waste plastic products through processes such as cleaning, crushing, melting, and pelletizing, and have a broad market. Regardless of where in the world, waste plastics are inevitably generated. Because of their low price, they can be processed into recycled pellets, providing unique favorable conditions for enterprises to set up waste plastic processing plants locally, realizing the recycling of resources and turning waste into treasure.

[0003] After the recycled plastic is extruded and pelletized by a pelletizing machine, the product plastic recycled pellets can be obtained. Due to differences in raw materials and production processes, dust or water vapor will adhere to the surface of the produced plastic recycled pellets. In order to reduce the dust content of the plastic recycled pellet product and prevent the plastic recycled pellets from agglomerating due to moisture, it is necessary to perform post-treatment on the recycled plastic pellets before sub-packaging. Existing treatment devices cannot simultaneously perform dust removal and water removal on plastic recycled pellet products, resulting in low processing efficiency of plastic recycled pellet products. Therefore, it is necessary to design a product treatment device for plastic pellet production that can simultaneously perform dust removal and water removal on plastic recycled pellet products. Content of the Utility Model

[0004] In view of the above technical problems, the utility model provides a product treatment device for plastic pellet production that can simultaneously perform dust removal and water removal on plastic recycled pellet products.

[0005] To solve the above technical problems, the technical solution of the utility model is: a product treatment device for plastic pellet production, including a treatment box, the bottom of the treatment box is fixedly connected with support legs, the upper end of the treatment box is fixedly connected with a feed hopper, the left side is fixedly connected with a hot air generator, the right side is provided with a discharge port, the bottom is provided with a dust discharge port, a weighing mechanism is fixedly connected below the discharge port, a conveyor belt is arranged below the weighing mechanism, a sieve plate is inclined in the treatment box, the output end of the hot air generator is communicated with the upwardly inclined side of the sieve plate, the lower end of the sieve plate is fixedly connected with a dust collection hopper, both sides and the lower end of the dust collection hopper are fixedly connected with the inside of the treatment box through springs, a vibration motor is fixedly connected to the bottom of the dust collection hopper, the lower end opening of the dust collection hopper is located in the dust discharge port, and an air extraction mechanism is fixedly connected to one side of the dust discharge port.

[0006] Further, the weighing mechanism includes a discharge hopper, a receiving bin, and a weighing sensor. The discharge hopper is fixedly connected to one side of the discharge port. The lower end of the weighing sensor is fixedly connected to the outside of the processing box through a support plate, and the upper end is fixedly connected to the lower end of the receiving bin. The receiving bin is located below the discharge hopper, and the conveyor belt is located below the receiving bin. A first discharge valve is fixedly connected to the bottom of the discharge hopper, and a second discharge valve is fixedly connected to the bottom of the receiving bin. The weighing sensor is communicatively connected to the controller, and both the first discharge valve and the second discharge valve are controlled by the controller.

[0007] Further, the air extraction mechanism includes an induced draft fan and an air extraction duct. The air extraction duct is arranged obliquely upward and is fixedly connected to one side of the dust discharge port at one end and to the input end of the induced draft fan at the other end. A filter screen layer is fixedly connected inside the air extraction duct.

[0008] Further, the output end of the induced draft fan is connected to the input end of the hot air generator through a circulation duct. A water vapor absorption tank is installed on the circulation duct, and an activated carbon layer is filled inside the water vapor absorption tank.

[0009] Further, a dust collection box is arranged below the dust discharge port.

[0010] The utility model has the following advantages compared with the prior art:

[0011] 1. By setting a sieve plate, a hot air generator, and a vibration motor, the utility model vibrates the sieve plate through the vibration motor to screen the plastic recycled particles, separating out the dust. The hot air generator continuously blows hot air onto the plastic recycled particles on the sieve plate to remove the moisture carried by the plastic recycled particles. It can simultaneously perform dust removal and water treatment on the plastic recycled particles, improving the efficiency of processing the plastic recycled particle products. By installing an air extraction mechanism at the bottom of the processing box, the air flow can be guided to be discharged from the bottom of the processing box. The air flow can further drive the dust to move and be discharged out of the processing box, preventing the dust from accumulating in the processing box and affecting the normal use of the device.

[0012] 2. By setting a discharge hopper, a receiving bin, a weighing sensor, and two discharge valves at the discharge port, the utility model quantitatively weighs the processed plastic recycled particles and then periodically conveys them to the next process through the conveyor belt, reducing the operation of re-quantitatively weighing from the storage place in the next process and further improving the efficiency of processing the plastic recycled particle products. By filtering, adsorbing, and removing water from the hot air in the processing box and then re-transporting it to the hot air generator, the waste heat of the hot air can be fully utilized, reducing energy waste and saving the cost of product processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the utility model.

[0014] Figure 2 This is a schematic structural diagram of the sieve plate of the present utility model.

[0015] In the figure: 1. Processing box, 2. Feed hopper, 3. Hot air generator, 4. Discharge port, 5. Dust discharge port, 6. Sieve plate, 7. Dust collection hopper, 8. Spring, 9. Vibration motor, 10. Discharge hopper, 11. Receiving bin, 12. Weighing sensor, 13. First discharge valve, 14. Second discharge valve, 15. Conveyor belt, 16. Support leg, 17. Induced draft fan, 18. Exhaust duct, 19. Circulation duct, 20. Water vapor absorption tank, 21. Dust collection box. Specific embodiments

[0016] The present utility model will be further described below in conjunction with the accompanying drawings.

[0017] As Figures 1 to 2 shown, a product processing device for plastic pellet production includes a processing box 1. Four support legs 16 are fixedly connected to the bottom of the processing box 1. A feed hopper 2 is fixedly connected to the upper end of the processing box 1, a hot air generator 3 is fixedly connected to the left side, a discharge port 4 is provided on the right side, and a dust discharge port 5 is provided at the bottom. A weighing mechanism is fixedly connected below the discharge port 4. A conveyor belt 15 is arranged below the weighing mechanism. A sieve plate 6 is inclined in the processing box 1. The sieve plate 6 is an arc-shaped plate. A number of through holes with diameters smaller than the particle size of the plastic recycled pellets are provided on the sieve plate 6 for screening dust. The output end of the hot air generator 3 is communicated with the inclined upward side of the sieve plate 6. The hot air generator 3 blows hot air towards the plastic recycled pellets on the sieve plate 6. The feed hopper 2 is fixedly connected to the inclined upward end close to the sieve plate 6. A baffle for preventing the plastic recycled pellets from splashing out is installed at the lower end of the feed hopper 2 near the sieve plate 6. The lower end of the sieve plate 6 is fixedly connected to a dust collection hopper 7. Both sides and the lower end of the dust collection hopper 7 are fixedly connected to the inside of the processing box 1 through springs 8. A vibration motor 9 is fixedly connected to the bottom of the dust collection hopper 7. The lower opening of the dust collection hopper 7 is located in the dust discharge port 5. An air extraction mechanism is fixedly connected to one side of the dust discharge port 5.

[0018] In order to quantitatively convey the processed plastic recycled pellets to the next process, a weighing mechanism is required to quantitatively weigh the plastic recycled pellets. The weighing mechanism includes a discharge hopper 10, a receiving bin 11, and a weighing sensor 12. The discharge hopper 10 is fixedly connected to one side of the discharge port 4. The lower end of the weighing sensor 12 is fixedly connected to the outside of the processing box 1 through a support plate, and the upper end is fixedly connected to the lower end of the receiving bin 11. The receiving bin 11 is located below the discharge hopper 10. The conveyor belt 15 is located below the receiving bin 11. A first discharge valve 13 is fixedly connected to the bottom of the discharge hopper 10. A second discharge valve 14 is fixedly connected to the bottom of the receiving bin 11. Both the first discharge valve 13 and the second discharge valve 14 are electric discharge valves. The weighing sensor 12 is communicatively connected to a controller. Both the first discharge valve 13 and the second discharge valve 14 are controlled by the controller.

[0019] In order to draw out the air flow in the processing box 1 from the dust discharge port 5 and make the air flow drive the dust to be discharged from the dust discharge port 5 outside the processing box 1, the air extraction mechanism includes an induced draft fan 17 and an air extraction duct 18. The air extraction duct 18 is arranged obliquely upward. One end of the air extraction duct 18 that is obliquely downward is fixedly connected to one side of the dust discharge port 5, and one end that is obliquely upward is fixedly connected to the input end of the induced draft fan 17. A filter screen layer is fixedly connected to the end of the air extraction duct 18 that is obliquely downward.

[0020] In order to reuse the hot air in the processing box 1 after treatment and reduce energy waste, the output end of the induced draft fan 17 is connected to the input end of the hot air generator 3 through a circulation duct 19. A water vapor absorption tank 20 is installed on the circulation duct 19. An activated carbon layer is filled in the water vapor absorption tank 20. The water vapor contained in the air flow can be removed through the adsorption of the activated carbon layer.

[0021] In order to collect the dust discharged from the processing box 1 together for subsequent treatment, a dust collection box 21 is arranged below the dust discharge port 5.

[0022] The specific working process of the present utility model is as follows:

[0023] The plastic recycled pellets after pelletizing are conveyed to the feed hopper 2. The plastic recycled pellets enter the processing box 1 and fall onto the sieve plate 6. The vibration motor 9 is started to drive the dust collection hopper 7 and the sieve plate 6 to vibrate, so as to screen the plastic recycled pellets and remove the dust. At the same time, the hot air generator 3 continuously blows hot air onto the plastic recycled pellets on the sieve plate 6 to remove the water vapor contained therein. After continuous screening by the inclined sieve plate 6, the plastic recycled pellets are completed with dust removal and water treatment, and finally fall into the discharge hopper 10 through the discharge port 4. At this time, the first discharge valve 13 is started and the second discharge valve 14 is closed. The plastic recycled pellets fall into the receiving bin 11. The weighing sensor 12 continuously detects the weight of the material in the receiving bin 11 and transmits the signal to the controller. When the weight reaches the highest value set by the controller, the controller controls the first discharge valve 13 to close and the second discharge valve 14 to start, and discharges the material in the receiving bin 11 onto the conveyor belt 15. The weighing sensor 12 continuously detects the weight of the material in the receiving bin 11 and transmits the signal to the controller. When all the plastic recycled pellets in the receiving bin 11 are unloaded, that is, when the weight reaches the lowest value set by the controller, the controller controls the second discharge valve 14 to close and the first discharge valve 13 to start. The plastic recycled pellets enter the receiving bin 11 again from the discharge hopper 10, and continuously circulate to quantitatively weigh the plastic recycled pellets. The dust sieved from the sieve plate 6 falls into the dust collection hopper 7. Driven by the vibration of the dust collection hopper 7 and the air flow, the dust falls from the dust collection hopper 7 into the dust discharge port 5 and finally falls into the dust collection box 21.

Claims

1. A product processing device for plastic pellet production, including a processing box (1), the bottom of the processing box (1) is fixedly connected with support legs (16), and it is characterized in that: The upper end of the processing box (1) is fixedly connected with a feed hopper (2), the left side is fixedly connected with a hot air generator (3), the right side is provided with a discharge port (4), and the bottom is provided with a dust discharge port (5). A weighing mechanism is fixedly connected below the discharge port (4). A conveyor belt (15) is arranged below the weighing mechanism. A sieve plate (6) is inclined in the processing box (1). The output end of the hot air generator (3) is communicated with the upward-inclined side of the sieve plate (6). The lower end of the sieve plate (6) is fixedly connected with a dust collection hopper (7). Both the two sides and the lower end of the dust collection hopper (7) are fixedly connected with the inside of the processing box (1) through springs (8). A vibration motor (9) is fixedly connected to the bottom of the dust collection hopper (7). The lower opening of the dust collection hopper (7) is located in the dust discharge port (5). An air extraction mechanism is fixedly connected to one side of the dust discharge port (5).

2. The product processing device for plastic particle production according to claim 1, wherein: The weighing mechanism includes a discharge hopper (10), a receiving bin (11), and a weighing sensor (12). The discharge hopper (10) is fixedly connected to one side of the discharge port (4). The lower end of the weighing sensor (12) is fixedly connected to the outside of the processing box (1) through a support plate, and the upper end is fixedly connected to the lower end of the receiving bin (11). The receiving bin (11) is located below the discharge hopper (10). The conveyor belt (15) is located below the receiving bin (11). A first discharge valve (13) is fixedly connected to the bottom of the discharge hopper (10). A second discharge valve (14) is fixedly connected to the bottom of the receiving bin (11). The weighing sensor (12) is in communication connection with a controller. Both the first discharge valve (13) and the second discharge valve (14) are controlled by the controller.

3. The product processing device for plastic particle production according to claim 1, characterized in that: The air extraction mechanism includes an induced draft fan (17) and an air extraction duct (18). The air extraction duct (18) is arranged inclined upward, one end of which is fixedly connected to one side of the dust discharge port (5), and the other end is fixedly connected to the input end of the induced draft fan (17). A filter screen layer is fixedly connected in the air extraction duct (18).

4. The product processing device for plastic particle production according to claim 3, characterized in that: The output end of the induced draft fan (17) is communicated with the input end of the hot air generator (3) through a circulation duct (19). A water vapor absorption tank (20) is installed on the circulation duct (19). An activated carbon layer is filled in the water vapor absorption tank (20).

5. The product processing device for plastic particle production according to claim 1, characterized in that: A dust collection box (21) is arranged below the dust discharge port (5).

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