Plastic sorting air classification equipment

Abstract

The utility model relates to the technical field of winnowing equipment, concretely relates to plastic sorting winnowing equipment, including winnowing box, the bottom of winnowing box is provided with a plurality of along the winnowing box length direction setting's discharge hopper, the right side box of winnowing box is fixedly installed with the air outlet pipe, the air inlet end of air outlet pipe is fixedly installed with the fan, the top of winnowing box is provided with spiral feeder, the discharge end of spiral feeder is fixedly installed with the discharge pipe, the end of discharge pipe is fixedly installed on the right side top box of winnowing box, the inside of winnowing box is provided with even material subassembly, even material subassembly is located in the discharge end of discharge pipe just below, even material subassembly includes the pivot that rotates with the front and rear two side plate bodies of winnowing box between connection, pivot is fixedly installed with a plurality of annular equal interval arrangement's poking blade. The utility model is beneficial to the winnowing operation, has the effect that the airflow and material are fully contacted, and the separation precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of air separation equipment technology, and more specifically, to air separation equipment for plastic sorting. Background Technology

[0002] With the rapid development of the plastics industry, the recycling and reuse of plastic waste has become an important measure to alleviate resource shortages and environmental pollution. In the process of plastic recycling, the sorting of plastics of different densities is a key link. Air separation technology, with its advantages of low cost and high efficiency, has been widely used in the field of plastic sorting. By utilizing the difference in suspension velocity of different plastic particles in the airflow, the separation of light and heavy plastics can be achieved.

[0003] Utility model patent CN214391134U discloses an air-separation device for sorting plastics with different specific gravities. The device includes an air-separation body, with a lower part and an upper part of a feeding funnel sequentially fixedly connected inside a support frame. A first gear is rotatably connected to one side of the lower part of the feeding funnel, and a second gear is fixedly connected to one side of the motor. A stirring mechanism is fixedly connected to one side of the first gear. The advantages of this utility model are: by setting up a stirring mechanism, during use, the motor drives the first gear to rotate via the second gear, thereby driving the stirring mechanism to rotate within the lower and upper parts of the feeding funnel. The connecting rod and stirring rod agitate the plastic particles, effectively preventing particles from clogging the feeding funnel. Furthermore, the agitation by the connecting rod and stirring rod improves the flowability of the plastic particles in the feeding funnel, preventing uneven discharge speeds and facilitating air-separation.

[0004] While this technical solution has its advantages, existing plastic sorting air-classifying equipment still has some shortcomings in practical applications. For example, materials are often directly fed into the air-classifying box through a simple funnel, which easily leads to accumulation and makes it difficult to disperse the materials evenly. This results in uneven material distribution, affecting the sufficient contact between the airflow and the material, and reducing the sorting accuracy. In view of this, we propose a plastic sorting air-classifying device. Utility Model Content

[0005] The purpose of this invention is to provide a plastic sorting and air-separation device to address the deficiencies mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A plastic sorting air classifier includes an air classifier box. The bottom of the air classifier box has multiple discharge hoppers arranged along its length. An air outlet pipe is fixedly installed on the right side of the air classifier box, and a fan is fixedly installed at the air inlet end of the air outlet pipe. A screw feeder is installed at the top of the air classifier box, and a discharge pipe is fixedly installed at the discharge end of the screw feeder. The end of the discharge pipe is fixedly installed on the right top side of the air classifier box. A material equalization component is installed inside the air classifier box, located directly below the discharge end of the discharge pipe. The material equalization component includes a rotating shaft rotatably connected to the front and rear side plates of the air classifier box. Multiple material-distributing blades arranged in a ring at equal intervals are fixedly installed on the rotating shaft.

[0008] Preferably, the material-dispensing blades are arranged along the width direction of the air separator, and the surface of the material-dispensing blades has a smooth structure.

[0009] Preferably, a plurality of material distribution protrusions arranged linearly and at equal intervals are fixedly installed on the bottom wall of the air separator, the material distribution protrusions being located between two adjacent discharge hoppers, and the cross-section of the material distribution protrusions being triangular;

[0010] This feature allows plastic to fall down the corresponding discharge hopper, enabling sorting operations.

[0011] Preferably, the air separator is fixedly mounted with a support leg for support, and a support base is fixedly mounted at the bottom end of the support leg.

[0012] Preferably, the feed end of the screw feeder is fixedly equipped with a feed hopper, which is funnel-shaped.

[0013] Preferably, the air inlet end of the fan is fixedly installed with an air inlet pipe, and the air inlet pipe is provided with a filter component for air filtration.

[0014] Preferably, the filter assembly includes a mesh cover, the mesh cover having a mesh structure, and a filter screen is disposed on the outside of the mesh cover;

[0015] This setting allows you to filter impurities in the air using a filter.

[0016] Preferably, a limiting ring is fixedly installed at the end of the air inlet pipe, and a bolt ring is fixedly installed at the end of the mesh cover. The bolt ring and the limiting ring are detachably connected by multiple fastening screws.

[0017] This feature facilitates the fixing, installation, and removal of the mesh cover.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model sets up a spiral feeder and discharge pipe at the top of the air classifier box, as well as a material equalization component inside. The spiral feeder stably conveys the material to the discharge pipe. The material hits the material-distributing blades, which drive the material-distributing blades to rotate. The smooth surface of the material-distributing blades evenly disperses the material, so as to achieve uniform distribution of the material in the air classifier box, thereby achieving the effect of allowing the airflow to fully contact the material and improving the sorting accuracy.

[0020] 2. This utility model uses the discharge hopper at the bottom of the air separator and the material distribution protrusions on the bottom wall. The material distribution protrusions guide the separated materials into the corresponding discharge hopper to avoid mixing. The blower provides a stable airflow through the air outlet pipe to achieve effective separation of light and heavy plastics, thereby improving the sorting efficiency and effect.

[0021] 3. This utility model filters impurities in the air through the filter components, mesh cover and filter screen on the air inlet pipe. The detachable connection between the bolt ring and the limit ring facilitates the replacement of filter components. The support legs and support base ensure stable operation of the equipment, thereby extending the service life of the equipment and reducing maintenance costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0024] Figure 3 This is the second partial structural schematic diagram of the present utility model;

[0025] Figure 4 This is the third partial structural schematic diagram of this utility model;

[0026] The meanings of the labels in the diagram are as follows:

[0027] 1. Air separator; 10. Discharge hopper; 11. Material distribution protrusion; 12. Support leg; 121. Support base; 13. Screw feeder; 131. Feed hopper; 14. Discharge pipe;

[0028] 2. Material distribution assembly; 20. Rotating shaft; 21. Material feeding blades;

[0029] 3. Air outlet duct;

[0030] 4. Fan; 40. Air inlet duct; 41. Limiting ring; 42. Filter assembly; 421. Mesh cover; 422. Filter screen; 423. Bolt ring. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-4 This utility model provides a technical solution: a plastic sorting air classifier, including an air classifier box 1. Multiple discharge hoppers 10 are arranged along the length of the air classifier box 1 at its bottom. An air outlet pipe 3 is fixedly installed on the right side of the air classifier box 1, and a fan 4 is fixedly installed at the air inlet end of the air outlet pipe 3. A screw feeder 13 is installed at the top of the air classifier box 1, and a discharge pipe 14 is fixedly installed at the discharge end of the screw feeder 13. The end of the discharge pipe 14 is fixedly installed on the right side of the top of the air classifier box 1. The interior of the air classifier box 1 is equipped with a homogenizing... Material distribution component 2 is located directly below the discharge end of discharge pipe 14. Material distribution component 2 includes a rotating shaft 20 that is rotatably connected to the front and rear side plates of air separator 1. Multiple material-distributing blades 21 arranged in a ring at equal intervals are fixedly installed on the rotating shaft 20, so that the screw feeder 13 conveys the material to discharge pipe 14. After the plastic falling out of discharge pipe 14 hits the material-distributing blades 21, it will drive the material-distributing blades 21 to rotate and disperse the material. Fan 4 provides airflow sorting. The material is guided into discharge hopper 10 by the material distribution protrusion 11 to realize plastic sorting.

[0033] In this embodiment, the material-distributing blades 21 are arranged along the width direction of the air classifier box 1. The surface of the material-distributing blades 21 is a smooth structure, which enables the material-distributing blades 21 to disperse the material along the width direction. The smooth surface prevents the material from sticking together, ensures uniform material distribution, and improves the airflow contact effect.

[0034] like Figure 1 As shown, multiple material separating protrusions 11 are fixedly installed on the bottom wall of the air classifier 1 in a linear and equidistant arrangement. The material separating protrusions 11 are located between two adjacent discharge hoppers 10. The cross-section of the material separating protrusions 11 is triangular, so that the material separating protrusions 11 can guide materials of different weights to slide into the corresponding discharge hoppers 10 respectively, preventing material mixing and ensuring the purity of the sorted materials.

[0035] like Figure 1 As shown, a support leg 12 is fixedly installed on the air classifier box 1 for support. A support base 121 is fixedly installed at the bottom end of the support leg 12 so that the support leg 12 supports the air classifier box 1. The support base 121 increases the contact area with the ground, improves the stability of the equipment placement, and avoids shaking during operation that affects the sorting.

[0036] like Figure 1As shown, a feed hopper 131 is fixedly installed at the feed end of the screw feeder 13. The feed hopper 131 is funnel-shaped, which makes it easy for the feed hopper 131 to receive materials. The funnel structure guides the materials smoothly into the screw feeder 13, prevents material leakage, and improves the feeding efficiency.

[0037] like Figures 1-3 As shown, an air inlet pipe 40 is fixedly installed at the air inlet end of the fan 4. A filter assembly 42 for air filtration is provided on the air inlet pipe 40. The filter assembly 42 includes a mesh cover 421 with a mesh structure. A filter screen 422 is provided on the outside of the mesh cover 421 to allow air to be introduced into the air inlet pipe 40. The mesh cover 421 and the filter screen 422 of the filter assembly 42 filter impurities to prevent impurities from contaminating materials or damaging the fan 4.

[0038] It is worth noting that a limiting ring 41 is fixedly installed at the end of the air inlet pipe 40, and a bolt ring 423 is fixedly installed at the end of the mesh cover 421. The bolt ring 423 and the limiting ring 41 are detachably connected by multiple fastening screws, which makes it easy to fix and remove the mesh cover 421, facilitates the replacement of the filter screen 422, and reduces the difficulty of maintenance.

[0039] Finally, it should be noted that the fan 4, screw feeder 13, corresponding control system and external power supply involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components and matching controllers and power supplies, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connection between each electrical component is completed in the order of operation. The detailed connection method is a technology known in the art.

[0040] When using the plastic sorting and air separation equipment of this utility model, the equipment is placed stably by the support legs 12 and the support base 121. Check the filter assembly 42 to ensure that the filter screen 422 outside the mesh cover 421 is clean and that the bolt ring 423 is firmly connected to the limit ring 41.

[0041] Pour the plastic to be sorted into the feed hopper 131 of the screw feeder 13, start the equipment, and the screw feeder 13 pushes the material to the discharge pipe 14. The material falls and hits the feeding blades 21, which drives the rotating shaft 20 to rotate. The smooth feeding blades 21 rotate along the width direction of the air separator 1 and disperse the material.

[0042] The blower 4 draws in filtered air through the air inlet pipe 40. The airflow sorts the materials in the air separator 1. The light and heavy plastics fall due to different forces. The material sorting protrusions 11 guide the materials into the corresponding discharge hopper 10. After sorting, the equipment is turned off, the filter assembly 42 is removed to clean or replace the filter screen 422, and the materials in the discharge hopper 10 are cleaned.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic sorting and air-classifying device, characterized in that: The system includes an air classifier (1), with multiple unloading hoppers (10) arranged along the length of the air classifier (1) at the bottom. An air outlet pipe (3) is fixedly installed on the right side of the air classifier (1), and a fan (4) is fixedly installed at the air inlet end of the air outlet pipe (3). A screw feeder (13) is provided at the top of the air classifier (1), and a discharge pipe (14) is fixedly installed at the discharge end of the screw feeder (13). The end of the discharge pipe (14) is fixedly installed on the right top side of the air classifier (1). A material equalization component (2) is provided inside the air classifier (1). The material equalization component (2) is located directly below the discharge end of the discharge pipe (14). The material equalization component (2) includes a rotating shaft (20) rotatably connected between the front and rear side plates of the air classifier (1). Multiple material-pulling blades (21) arranged in a ring at equal intervals are fixedly installed on the rotating shaft (20).

2. The plastic sorting and air-classifying equipment according to claim 1, characterized in that: The material-dispensing blade (21) is arranged along the width direction of the air separator (1), and the surface of the material-dispensing blade (21) is a smooth structure.

3. The plastic sorting and air-classifying equipment according to claim 1, characterized in that: Multiple material distribution protrusions (11) arranged linearly and at equal intervals are fixedly installed on the bottom wall of the air separator (1). The material distribution protrusions (11) are located between two adjacent unloading hoppers (10), and the cross-section of the material distribution protrusions (11) is triangular.

4. The plastic sorting and air-classifying equipment according to claim 1, characterized in that: The air separator (1) is fixedly installed with a support leg (12) for support, and a support base (121) is fixedly installed at the bottom end of the support leg (12).

5. The plastic sorting and air-classifying equipment according to claim 1, characterized in that: The feed end of the screw feeder (13) is fixedly equipped with a feed hopper (131), which is funnel-shaped.

6. The plastic sorting and air-classifying equipment according to claim 1, characterized in that: The air inlet pipe (40) is fixedly installed at the air inlet end of the fan (4), and a filter assembly (42) for air filtration is provided on the air inlet pipe (40).

7. The plastic sorting and air-classifying equipment according to claim 6, characterized in that: The filter assembly (42) includes a mesh cover (421), which has a mesh structure, and a filter screen (422) is provided on the outside of the mesh cover (421).

8. The plastic sorting and air-classifying equipment according to claim 7, characterized in that: A limiting ring (41) is fixedly installed at the end of the air inlet pipe (40), and a bolt ring (423) is fixedly installed at the end of the mesh cover (421). The bolt ring (423) and the limiting ring (41) are detachably connected by multiple fastening screws.

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