Mixing and granulating equipment

Abstract

The utility model discloses a mixing granulation equipment, including loading device, mixing device, fan, loading device is located the upper end of mixing device, loading device includes a plurality of hopper, mixing device includes barrel, hopper body, stirring device, inner barrel, the lower end opening of barrel is fixedly connected with the big diameter end of hopper body, inner barrel is located in barrel and hopper body, and the upper end opening of barrel is fixedly connected with the lower end opening of hopper body. A plurality of air holes are formed in the side wall of the inner barrel, an air channel is formed among the inner barrel, the barrel body and the hopper body, an air outlet is formed in the upper end of the side wall of the barrel body, an air inlet is formed in the side wall of the hopper body, the air inlet is located in the side wall of the hopper body and close to the small-diameter end of the hopper body, the air outlet is communicated with the air channel, and the air inlet is communicated with the air channel. The stirring device is installed at the lower end of the hopper body and comprises a stirring rod capable of rotating, the stirring rod extends into the inner barrel, the air duct is arranged between the inner barrel and the outer barrel, and dust in raw materials is sucked out through air holes of the inner barrel by blowing traction airflow through the fan.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic mixing equipment, and more specifically, to a mixing and granulation equipment. Background Technology

[0002] In existing technologies, the mixing of plastic raw materials in industrial production aims to optimize material properties and improve the toughness, strength, or processability of plastics through blending modification. However, existing mixing and granulating machines produce dust, dirt, and impurities during the mixing of plastic raw material granules, resulting in defective plastics after direct mixing and granulation. To improve the quality of granulated plastic granules, a technical solution is needed to address these issues. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and remove dust and ash during the mixing process, thereby providing a mixing and granulation equipment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a mixing and granulation equipment, including a feeding device, a mixing device, and a blower. The feeding device is located at the upper end of the mixing device and includes multiple hoppers. The mixing device includes a cylinder, a hopper, a stirring device, and an inner cylinder. The lower end of the cylinder is fixedly connected to the large-diameter end of the hopper. The inner cylinder is located inside the cylinder and the hopper. The side wall of the inner cylinder has multiple air holes, and an air duct is formed between the inner cylinder, the cylinder, and the hopper. The upper end of the side wall of the cylinder has an air outlet, and the side wall of the hopper has an air inlet. The air inlet is located on the side wall of the hopper near the small-diameter end of the hopper. The air outlet connects to the air duct, and the air inlet connects to the air duct. The blower is connected to the air inlet. The lower end of the hopper connects to the interior of the inner cylinder. The stirring device is installed at the lower end of the hopper and includes a rotatable stirring rod that extends into the inner cylinder.

[0006] Furthermore, the cylinder is provided with a first annular groove, which is located on the inner wall of the cylinder at the end away from the bucket, and the air outlet is connected to the first annular groove.

[0007] Furthermore, the bucket body is provided with a second annular groove, which is located on the inner wall of the bucket body at the end away from the cylinder body, and the air inlet is connected to the second annular groove.

[0008] Furthermore, the mixing device includes a base, which is installed at the small-diameter end of the hopper. The side wall of the base is provided with a discharge port, and the end of the discharge port away from the base is inclined downward. The stirring device includes a second motor, which is fixedly installed at the lower end of the base. The second motor drives the stirring rod, which passes through the base.

[0009] Furthermore, the base has an internal mounting platform, the upper surface of which is a discharge surface, which is a slope. The discharge surface includes a first end and a second end, the second end being higher than the first end, and the first end and the discharge port being flush with the lower end of the connection port of the base.

[0010] Furthermore, the stirring rod is provided with multiple branch rods, which are located in the part of the stirring rod within the inner cylinder. The multiple branch rods are arranged at intervals along the length of the stirring rod, and the branch rods extend upward at an angle that is the same as the taper of the bucket body.

[0011] Furthermore, the feeding device includes a cover plate connected to the lower end of the hopper, the cover plate being located inside the cylinder, the lower end of the hopper passing through the cover plate to communicate with the inner cylinder, and the cover plate closing the upper opening of the inner cylinder and the upper opening of the cylinder.

[0012] Furthermore, the feeding device includes a connecting shaft, a bracket, and a first motor. The connecting shaft is fixedly connected to the cover plate and the hopper. The connecting shaft is rotatably connected to the bracket. The first motor is mounted on the bracket and drives the connecting shaft. The cover plate is rotatably connected to the cylinder.

[0013] The beneficial effects of this utility model are:

[0014] This invention features an air duct between the inner and outer cylinders, creating an annular upward airflow through the second ring groove of the hopper. As the raw material falls into the inner cylinder, it is dispersed and separated by the stirring rod. Dust and other impurities floating in the inner cylinder are attracted by the negative pressure generated by the air duct. The traction airflow blown in by the fan draws the dust out of the raw material through the air holes in the inner cylinder, reducing impurities in the raw material and resulting in better granulation quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one embodiment.

[0016] Figure 2 This is a cross-sectional view of this embodiment.

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0018] Reference numerals: 1. Feeding device; 11. Hopper; 12. Cover plate; 13. Connecting shaft; 14. Support; 15. First motor; 2. Mixing device; 21. Cylinder; 211. First annular groove; 212. Air outlet; 22. Hopper body; 221. Second annular groove; 222. Air inlet; 23. Stirring device; 231. Stirring rod; 232. Dividing rod; 233. Second motor; 24. Inner cylinder; 241. Air hole; 25. Base; 251. Discharge port; 26. Bottom platform; 261. Discharge surface; 2611. First end; 2612. Second end; 27. Air duct; 3. Fan. Detailed Implementation

[0019] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] like Figure 1 , Figure 2 , Figure 3 As shown, this embodiment discloses a mixing and granulation equipment, including a feeding device 1, a mixing device 2, and a blower 3. The feeding device 1 is located at the upper end of the mixing device 2. The feeding device 1 includes multiple hoppers 11, a cover plate 12, a connecting shaft 13, a bracket 14, and a first motor 15. The multiple hoppers 11 can hold different raw materials. The connecting shaft 13 is fixedly connected to the cover plate 12 and the hoppers 11. The connecting shaft 13 is rotatably connected to the bracket 14. The first motor 15 is installed on the bracket 14 and drives the connecting shaft 13. The first motor 15 drives the connecting shaft 13 to rotate through a pulley, so that the hoppers 11 can be in a rotating feeding state when discharging materials, so that the mixing effect between the raw material particles is better.

[0021] The cover plate 12 is rotatably connected to the cylinder 21. The cover plate 12 is connected to the lower end of the hopper 11 and is located inside the cylinder 21. The lower end of the hopper 11 passes through the cover plate 12 and connects to the inner cylinder 24. The lower end of the hopper 11 connects to the inside of the inner cylinder 24, allowing the raw material to be directly fed into the inner cylinder 24. The cover plate 12 closes the upper opening of the inner cylinder 24 and the upper opening of the cylinder 21. The cover plate 12 can act as a top seal for the cylinder 21 and the inner cylinder 24, separating the upper ends of the cylinder 21 and the inner cylinder 24 to prevent the raw material from entering the air duct 27.

[0022] The mixing device 2 includes a cylinder 21, a hopper 22, a stirring device 23, and an inner cylinder 24. The lower end of the cylinder 21 is fixedly connected to the large-diameter end of the hopper 22. The cylinder 21 and the hopper 22 form an outer cylinder. The inner cylinder 24 is located inside the cylinder 21 and the hopper 22. The side wall of the inner cylinder 24 is provided with multiple air holes 241. When airflow passes through the air duct 27, a negative pressure is formed at the air holes 241. The negative pressure can absorb dust, dirt, and impurities in the inner cylinder 24. The lower end of the inner cylinder 24 is provided with a part with the same taper as the hopper 22. An air duct 27 is formed between the inner cylinder 24 and the cylinder 21 and the hopper 22. The side wall of the cylinder 21 has... The end is provided with an air outlet 212, and the side wall of the bucket body 22 is provided with an air inlet 222. The air inlet 222 is located on the side wall of the bucket body 22 near the end with the smallest diameter of the bucket body 22. The air outlet 212 is connected to the ventilation duct 27, and the air inlet 222 is connected to the ventilation duct 27. The fan 3 is connected to the air inlet 222. When the fan 3 is started, the airflow blows upward from the lower end of the air duct 27, so that the dust, dirt and impurities carried by the raw material when entering the inner cylinder 24 enter the air duct 27 through the air hole 241. The air duct 27 sends the dust, dirt and impurities to the air outlet 212, which can significantly reduce the dust impurities in the raw material and improve the quality of subsequent plasticizing and granulation.

[0023] More preferably, the cylinder 21 is provided with a first annular groove 211, which is located at the end of the inner wall of the cylinder 21 away from the bucket 22. The air outlet 212 is connected to the first annular groove 211. The first annular groove 211 can form an annular airflow at the air outlet 212, allowing dust and impurities to enter the air outlet 212 along the first annular groove 211, thus guiding the airflow. The bucket 22 is provided with a second annular groove 221, which is located at the end of the inner wall of the bucket 22 away from the cylinder 21. The air inlet 222 is connected to the second annular groove 221. The second annular groove 221 can generate an annular airflow when the air blown by the fan 3 enters the bucket 22, so that the airflow in the air duct 27 is in an annular upward flow direction, which can better attract dust and impurities in the inner cylinder 24 through the air hole 241.

[0024] The mixing device 2 includes a base 25, which is installed at the small-diameter end of the hopper 22. The side wall of the base 25 is provided with a discharge port 251. The end of the discharge port 251 away from the base 25 is inclined downward. After the raw material particles are mixed, they are conveyed outward through the discharge port 251 for plasticizing, extrusion, and granulation. A base platform 26 is installed inside the base 25. The base platform 26 can raise the inner bottom surface of the base 25. The upper end surface of the base platform 26 is the discharge surface 261. The discharge surface 261 is a sloped surface and includes a first end 2611 and a second end 2612. The second end 2612 is higher than the first end 2611. The lower end of the connection between the first end 2611 and the discharge port 251 and the base 25 is flush. This allows the raw material entering the base 25 to be guided towards the discharge port 251 when it comes into contact with the discharge surface 261. This can completely send the mixed raw material outward and prevent the raw material from accumulating inside the base 25.

[0025] The stirring device 23 includes a stirring rod 231 and a second motor 233. The stirring rod 231 extends into the inner cylinder 24, and the second motor 233 is fixedly installed at the lower end of the base 25. The second motor 233 drives the stirring rod 231, which passes through the base 25 and the bottom platform 26 and extends into the inner cylinder 24. The stirring rod 231 has multiple branch rods 232, which are located in the part of the stirring rod 231 that is in the inner cylinder 24. The multiple branch rods 232 are arranged at intervals along the length of the stirring rod 231. The branch rods 232 extend upward at an angle that is the same as the taper of the hopper 22. When the stirring rod 231 rotates, it can disperse the material fed into the hopper 11, making the raw materials more evenly mixed and improving the mixing effect. At the same time, it can separate the dust and impurities attached to the raw materials, which can be sucked up by the air holes 241.

[0026] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A mixing and granulation device, characterized in that, The device includes a feeding device (1), a mixing device (2), and a blower (3). The feeding device (1) is located at the upper end of the mixing device (2). The feeding device (1) includes multiple hoppers (11). The mixing device (2) includes a cylinder (21), a hopper (22), a stirring device (23), and an inner cylinder (24). The lower end opening of the cylinder (21) is fixedly connected to the large-diameter end of the hopper (22). The inner cylinder (24) is located inside the cylinder (21) and the hopper (22). The side wall of the inner cylinder (24) is provided with multiple air holes (241). An air duct (27) is formed between the inner cylinder (24), the cylinder (21), and the hopper (22). The upper end of the side wall of the hopper (21) is provided with an air outlet (212), and the side wall of the hopper (22) is provided with an air inlet (222). The air inlet (222) is located on the side wall of the hopper (22) near the end of the hopper (22) with a small diameter. The air outlet (212) is connected to the air duct (27), and the air inlet (222) is connected to the air duct (27). The fan (3) is connected to the air inlet (222). The lower end of the hopper (11) is connected to the interior of the inner cylinder (24). The stirring device (23) is installed at the lower end of the hopper (22). The stirring device (23) includes a rotatable stirring rod (231), and the stirring rod (231) extends into the inner cylinder (24).

2. The mixing and granulation equipment according to claim 1, characterized in that, The cylinder (21) is provided with a first annular groove (211), which is located on the inner wall of the cylinder (21) away from the bucket (22), and the air outlet (212) is connected to the first annular groove (211).

3. The mixing and granulation equipment according to claim 1, characterized in that, The bucket body (22) is provided with a second annular groove (221), which is located at the end of the inner wall of the bucket body (22) away from the cylinder body (21), and the air inlet (222) is connected to the second annular groove (221).

4. The mixing and granulation equipment according to claim 1, characterized in that, The mixing device (2) includes a base (25), which is installed on the small diameter end of the hopper (22). The side wall of the base (25) is provided with a discharge port (251), and the end of the discharge port (251) away from the base (25) is inclined downward. The stirring device (23) includes a second motor (233), which is fixedly installed on the lower end of the base (25). The second motor (233) drives the stirring rod (231), which passes through the base (25).

5. The mixing and granulation equipment according to claim 4, characterized in that, The base (25) has an internal mounting platform (26). The upper surface of the platform (26) is a discharge surface (261). The discharge surface (261) is a slope. The discharge surface (261) includes a first end (2611) and a second end (2612). The second end (2612) is higher than the first end (2611). The first end (2611) and the discharge port (251) are flush with the lower end of the connection port of the base (25).

6. The mixing and granulation equipment according to claim 1, characterized in that, The stirring rod (231) is provided with multiple branch rods (232). The branch rods (232) are located in the part of the stirring rod (231) that is in the inner cylinder (24). The multiple branch rods (232) are arranged at intervals along the length direction of the stirring rod (231). The branch rods (232) extend upward at an angle. The angle of inclination of the branch rods (232) is the same as the taper of the bucket body (22).

7. The mixing and granulation equipment according to claim 1, characterized in that, The feeding device (1) includes a cover plate (12), which is connected to the lower end of the hopper (11). The cover plate (12) is located inside the cylinder (21). The lower end of the hopper (11) passes through the cover plate (12) and communicates with the inner cylinder (24). The cover plate (12) closes the upper opening of the inner cylinder (24) and the upper opening of the cylinder (21).

8. The mixing and granulation equipment according to claim 7, characterized in that, The feeding device (1) includes a connecting shaft (13), a bracket (14), and a first motor (15). The connecting shaft (13) is fixedly connected to the cover plate (12) and the hopper (11). The connecting shaft (13) is rotatably connected to the bracket (14). The first motor (15) is installed on the bracket (14) and drives the connecting shaft (13). The cover plate (12) is rotatably connected to the cylinder (21).

Images