Air separator system

Abstract

The application discloses a winnowing machine system. The winnowing machine system comprises a box body, a first separation chamber, a second separation chamber and a settling chamber which are sequentially arranged in the box body, the first separation chamber, the second separation chamber and the settling chamber are sequentially communicated, the top of the settling chamber is provided with a plurality of air suction boxes which are communicated with the settling chamber, a first rotating drum of a main separation device is rotatably arranged in the first separation chamber, the inlet end of a first air nozzle is connected with the outlet end of a main fan, the outlet end of the first air nozzle is arranged in the first separation chamber, a second rotating drum of an auxiliary separation device is rotatably arranged in the second separation chamber, the inlet end of a second air nozzle is connected with the outlet end of an auxiliary fan, the outlet end of the second air nozzle is arranged in the second separation chamber, a return air pipeline is connected with the air suction boxes and communicated with the settling chamber, so that the settling chamber is kept in a negative pressure state. The winnowing machine system disclosed by the application can separate materials for three times, and the settling effect of the materials is good during the separation process, so that the separation precision of the materials is improved.

Description

Technical Field

[0001] This invention relates to material sorting equipment, and more particularly to an air classifier system. Background Technology

[0002] Air classifiers separate materials of different densities or particle sizes using airflow and are widely used in various industries. Most air classifiers employ a single-drum or single-channel airflow design, where materials are separated under the action of a single airflow. Therefore, existing air classifiers suffer from problems such as insufficient separation accuracy, poor settling effect, poor airflow stability, and limited adaptability. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an air classifier system with high sorting accuracy and good settling effect.

[0004] According to an embodiment of the present invention, an air separator system includes a housing, a main separation device, a secondary separation device, and a return air duct. The housing contains a first separation chamber, a second separation chamber, and a settling chamber arranged sequentially, which are connected in sequence. The bottom of the first separation chamber has a first discharge port, the bottom of the second separation chamber has a second discharge port, and the bottom of the settling chamber has a third discharge port. The top of the settling chamber has multiple suction boxes communicating with it, and these suction boxes are spaced apart along the length of the settling chamber. The main separation device includes a main fan, a first air nozzle, and a first rotary valve. The first separation device includes a first rotating drum rotatably disposed in the first separation chamber, the inlet end of the first air nozzle connected to the outlet end of the main fan, and the outlet end of the first air nozzle disposed in the first separation chamber to blow air into the first separation chamber; the auxiliary separation device includes an auxiliary fan, a second air nozzle, and a second rotating drum rotatably disposed in the second separation chamber, the inlet end of the second air nozzle connected to the outlet end of the auxiliary fan, and the outlet end of the second air nozzle disposed in the second separation chamber to blow air into the second separation chamber; the return air duct is connected to the air intake box and communicates with the settling chamber to keep the settling chamber under negative pressure.

[0005] The air classifier system according to embodiments of the present invention has at least the following beneficial effects: The air classifier system of the present invention combines two separation devices. In the first separation chamber, the main separation device separates the material by air classification. The heavy material in the material falls from the first discharge port of the first separation chamber into the heavy material collection point. The light material and the medium material (the weight of the medium material is between that of the heavy material and the light material) enter the second separation chamber with the airflow. The auxiliary separation device with a smaller air force performs secondary air classification separation on the light material and the medium material. The separated medium material falls from the second discharge port of the second separation chamber into the medium material collection point. The remaining light material enters the settling chamber with the airflow. The light material sinks in the settling chamber and is transported to the outside of the settling chamber through the third discharge port settling chamber outlet. The airflow enters the return air duct for recycling through the suction box. Thus, the air classifier system of the present invention classifies the material three times. During the classification process, the material has a good settling effect and improves the classification accuracy of the material.

[0006] According to some embodiments of the present invention, the top wall of the settling chamber is provided with a plurality of turbulence-disrupting components, which are arranged along the length direction of the settling chamber and extend away from the top wall of the settling chamber.

[0007] According to some embodiments of the present invention, the turbulence assembly includes a first turbulence plate, a second turbulence plate, and a third turbulence plate arranged sequentially along the length direction of the settling chamber. The first turbulence plate, the second turbulence plate, and the third turbulence plate are all arranged laterally in the settling chamber. The distance from the top wall of the settling chamber to the end of the first turbulence plate away from the top wall of the settling chamber is L1, the distance from the top wall of the settling chamber to the end of the second turbulence plate away from the top wall of the settling chamber is L2, and the distance from the top wall of the settling chamber to the end of the third turbulence plate away from the top wall of the settling chamber is L3, wherein L1>L3>L2.

[0008] According to some embodiments of the present invention, the first spoiler and the second spoiler are both inclined in a direction away from the second separation chamber, and the third spoiler is inclined in a direction close to the second separation chamber.

[0009] According to some embodiments of the present invention, the first baffle is provided with a first inclined section and a second inclined section. The first inclined section is close to the top wall of the settling chamber, and the second inclined section is located on the side of the first inclined section away from the settling chamber. The angle between the first inclined section and the top wall of the settling chamber is 60°-70°, and the angle between the second inclined section and the top wall of the settling chamber is 70°-80°.

[0010] According to some embodiments of the present invention, the first spoiler and the second spoiler are provided with vents.

[0011] According to some embodiments of the present invention, the air intake box has a trapezoidal cross-sectional shape, and the return air duct includes a main return duct and a secondary return duct connected to the air intake box. The main return duct is connected to the air inlet end of the main fan, and the secondary return duct is connected to the air inlet end of the secondary fan.

[0012] According to some embodiments of the present invention, a collector is provided on the pipe between the main fan and the first air nozzle to collect the material entering the pipe along the first air nozzle.

[0013] According to some embodiments of the present invention, a dust removal device is also included, wherein a diversion valve is provided on the pipe between the main fan and the first air nozzle, and the inlet end of the dust removal device is connected to the diversion valve.

[0014] According to some embodiments of the present invention, the device further includes an infeed conveying device and an outfeed conveying device, wherein the outfeed end of the infeed conveying device is connected to the material inlet end of the first separation chamber, and the outfeed conveying device is located at the bottom of the settling chamber to receive the material coming out of the third outlet.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the air separator system of the present invention;

[0018] Figure 2 This is a top view schematic diagram of an air separator system according to an embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the air separator system of the present invention;

[0020] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0021] Figure 5 This is a schematic diagram of the collector of an air separator system according to an embodiment of the present invention.

[0022] Icon labels:

[0023] Support frame 100, feed conveyor 110, discharge conveyor 120;

[0024] Box 200, first separation chamber 210, first discharge port 211, second separation chamber 220, second discharge port 221, settling chamber 230, third discharge port 231, air suction box 240;

[0025] Main separation device 300, main fan 310, first air nozzle 320, first drum 330, collector 340, inclined pipe 341, vertical pipe 342, cover 343;

[0026] Secondary separation device 400, secondary fan 410, second air nozzle 420, second rotary drum 430;

[0027] Return air duct 500, main return air duct 510, auxiliary return air duct 520;

[0028] The spoiler assembly 600, the first spoiler 610, the first inclined section 611, the second inclined section 612, the vent 613, the second spoiler 620, the third spoiler 630, and the fourth spoiler 640;

[0029] Dust removal device 700, diversion valve 710. Detailed Implementation

[0030] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of this invention, it should be understood that the orientation descriptions, such as left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0032] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0033] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0034] Reference Figure 1 , Figure 2 , Figure 3The air separator system proposed in this embodiment of the invention includes a housing 200, a main separation device 300, a secondary separation device 400, and a return air duct 500.

[0035] Specifically, refer to Figure 1 The air separator system has a support frame 100, and a housing 200 is mounted on the support frame 100. Inside the housing 200, a first separation chamber 210, a second separation chamber 220, and a settling chamber 230 are arranged sequentially. The first separation chamber 210 has a material inlet, through which the material to be air-separated can be conveyed into the first separation chamber 210. The first separation chamber 210 is connected to the second separation chamber 220, and the second separation chamber 220 is connected to the settling chamber 230. The bottom of the first separation chamber 210 has a first discharge port 211, the bottom of the second separation chamber 220 has a second discharge port 221, and the bottom of the settling chamber 230 has a third discharge port 231. Heavy materials, medium-weight materials, and other materials are separated by air separation. After being separated by air separation, the materials and light materials can be transported to the outside of the housing 200 through the corresponding first discharge port 211, second discharge port 221 and third discharge port 231. The top of the settling chamber 230 is provided with multiple suction boxes 240 that are connected to the settling chamber 230. The multiple suction boxes 240 are spaced apart along the length of the settling chamber 230. The return air duct 500 is connected to the suction box 240 and is connected to the settling chamber 230. The return air duct 500 is connected to the wind power equipment. The suction box 240 can form a negative pressure under the action of external wind, thereby forming a negative pressure in the settling chamber 230, so that the airflow in the settling chamber 230 is discharged through the suction box 240.

[0036] Reference Figure 3 The main separation device 300 includes a main fan 310, a first air nozzle 320 and a first rotating drum 330. The first rotating drum 330 is rotatably disposed in the first separation chamber 210. The inlet end of the first air nozzle 320 is connected to the outlet end of the main fan 310, and the outlet end of the first air nozzle 320 is disposed in the first separation chamber 210. When the main fan 310 is running, the airflow can blow into the first separation chamber 210 through the first air nozzle 320.

[0037] The secondary separation device 400 includes a secondary fan 410, a second air nozzle 420, and a second rotating drum 430. The second rotating drum 430 is rotatably disposed in the second separation chamber 220. The inlet end of the second air nozzle 420 is connected to the outlet end of the secondary fan 410, and the outlet end of the second air nozzle 420 is disposed in the second separation chamber 220. When the secondary fan 410 is running, airflow can be blown into the second separation chamber 220 through the second air nozzle 420.

[0038] The air classifier system of this invention combines two separation devices. When the air classifier system is in operation, the main separation device 300 and the auxiliary separation device 400 are activated. The material to be air-classified is conveyed through the material inlet of the first separation chamber 210 to the surface of the first rotating drum 330. The rotation of the first rotating drum 330 causes the heavier materials in the material to fall from the first discharge port 211, while the medium and light materials are blown up by the first air nozzle 320, flip over the first rotating drum 330, and enter the second separation chamber 220 under the influence of the airflow, falling onto the second rotating drum 430. On the surface, the second drum 430 rotates, causing the medium material to fall from the second discharge port 221. The second air nozzle 420 blows up the light material, which then enters the settling chamber 230 with the airflow. In the settling chamber 230, the light material separates from the air and falls from the third discharge port 231. The airflow exits from the settling chamber 230 through the suction box 240 and enters the return air duct 500 for recycling. Thus, the air classifier system of the present invention sorts the material three times. During the sorting process, the material has a good settling effect, which improves the sorting accuracy of the material.

[0039] It should be noted that since the material to be separated in the second separation chamber 220 is medium material, the air force blown out by the second air nozzle 420 is smaller than that blown out by the first air nozzle 320. Therefore, the power of the auxiliary fan 410 is smaller than that of the main fan 310.

[0040] Reference Figure 1 , Figure 3 In this embodiment, the return air duct 500 includes a main return duct 510 and a secondary return duct 520 connected to the intake box 240. The main return duct 510 is connected to the air inlet of the main fan 310, and the secondary return duct 520 is connected to the air inlet of the secondary fan 410. The main fan 310 and the secondary fan 410 generate negative pressure in the settling chamber 230 to prevent the airflow containing dust in the settling chamber 230 from overflowing, thereby keeping the environment of the air classifier site clean and eliminating the need for additional air power equipment, thus reducing the cost of the air classifier system.

[0041] It is understood that in some embodiments, the settling chamber 230 may be negatively pressured by connecting an additional wind power device to the return air duct 500, which is not limited here.

[0042] Reference Figure 1 , Figure 2 , Figure 3 The air classifier system also includes a feed conveyor 110 and a discharge conveyor 120. The discharge end of the feed conveyor 110 is connected to the material inlet end of the first separation chamber 210. The discharge conveyor 120 is located at the bottom of the settling chamber 230 to receive the material coming out of the third discharge port. The feed conveyor 110 and the discharge conveyor 120 transport the material to be air-classified and the material after air classification, thereby improving the automation level of the air classifier system.

[0043] It is understood that the feed conveyor 110 and the discharge conveyor 120 may be belt conveyors or other commonly used conveying machinery, and no limitation is made here.

[0044] Reference Figure 3 In some embodiments, the top wall of the settling chamber 230 is provided with multiple baffles 600. These baffles 600 are arranged along the length of the settling chamber 230 and extend away from the top wall of the settling chamber 230. The baffles 600 can effectively reduce the airflow velocity entering the settling chamber 230. The lower the airflow velocity, the worse the material carrying capacity. After the airflow velocity is reduced, the light material will fall to the discharge conveyor 120 below and be directly discharged outside the settling chamber 230. The light material in the airflow settles onto the discharge conveyor 120, and no light material enters the suction box 240. Therefore, no light material enters the return air duct 500, thus avoiding blockage of the return air duct 500. This prevents large fluctuations in airflow in the main fan 310 and the auxiliary fan 410, thereby improving the settling effect of the air classifier system and increasing the sorting efficiency.

[0045] Reference Figure 4 In some embodiments, the turbulence assembly 600 includes a first turbulence plate 610, a second turbulence plate 620, and a third turbulence plate 630 arranged sequentially along the length of the settling chamber 230. In one embodiment, a channel for airflow to enter the intake box 240 is formed between the first turbulence plate 610 and the second turbulence plate 620, between the second turbulence plate 620 and the third turbulence plate 630, and between the third turbulence plate 630 and the first turbulence plate 610 of the adjacent turbulence assembly 600. In other embodiments, a channel for airflow to enter the intake box 240 is formed between the first turbulence plate 610 and the second turbulence plate 620, and between the second turbulence plate 620 and the third turbulence plate 630.

[0046] The first spoiler 610, the second spoiler 620, and the third spoiler 630 are all horizontally arranged in the settling chamber 230. The first spoiler 610 and the second spoiler 620 are inclined in a direction away from the second separation chamber 220, and the third spoiler 630 is inclined in a direction close to the second separation chamber 220. The distance from the top wall of the settling chamber 230 to the end of the first spoiler 610 away from the top wall of the settling chamber 230 is L1, the distance from the top wall of the settling chamber 230 to the end of the second spoiler 620 away from the top wall of the settling chamber 230 is L2, and the distance from the top wall of the settling chamber 230 to the end of the third spoiler 630 away from the top wall of the settling chamber 230 is L3, where L1>L3>L2.

[0047] Because the airflow entering the settling chamber 230 of the air separator system is mixed with dust and light materials, and the air velocity entering the settling chamber 230 from the second separation chamber 220 is relatively fast, it is easy to blow the light materials and dust directly into the suction box 240 at the top of the settling chamber 230, which affects the separation effect of light materials in the settling chamber 230. The first baffle 610 guides the airflow to the bottom of the settling chamber 230, bringing the airflow closer to the third discharge port 231 to facilitate the settling of light materials. The second baffle 620 slows down the airflow before it enters the suction box 240. The third baffle 630 is designed to rotate the airflow that has been pushed down by the first baffle 610, directing the airflow back to the lower part of the settling chamber 230. This slows down the airflow in the middle of the settling chamber 230, preventing it from carrying light materials into the suction box 240. Therefore, the airflow entering the suction box 240 is only air carrying dust, further improving the settling effect of the air classifier system and increasing the sorting efficiency.

[0048] Reference Figure 3 In some embodiments, a fourth baffle plate 640 is provided on the top of the second separation chamber 220 near the settling chamber 230. The fourth baffle plate 640 extends along the direction close to the material inlet of the settling chamber 230. The airflow entering the settling chamber 230 from the second separation chamber 220 is turbulent by the fourth baffle plate 640 and flows to the lower part of the settling chamber 230. After being turbulent by the baffle assembly 600 provided in the settling chamber 230, the settling effect of light materials in the airflow entering the settling chamber 230 can be further improved, thereby improving the sorting efficiency of the air classifier system.

[0049] Reference Figure 3 , Figure 4 In some embodiments, the first spoiler 610 and the second spoiler 620 are both inclined in a direction away from the second separation chamber 220, and the third spoiler 630 is inclined in a direction close to the second separation chamber 220. This arrangement of the first spoiler 610, the second spoiler 620, and the third spoiler 630 is beneficial for disturbing the airflow and reducing the airflow velocity, which is conducive to the settling of light materials.

[0050] Reference Figure 4 In some embodiments, the first baffle 610 has a first inclined section 611 and a second inclined section 612. The first inclined section 611 is close to the top wall of the settling chamber 230, and the second inclined section 612 is located on the side of the first inclined section 611 away from the settling chamber 230. The angle between the first inclined section 611 and the top wall of the settling chamber 230 is 60°–70°, and the angle between the second inclined section 612 and the top wall of the settling chamber 230 is 70°–80°. The airflow is guided twice by the first inclined section 611 and the second inclined section 612, resulting in two deflections in the flow direction. This effectively disturbs the airflow, reduces its velocity, and consequently reduces its kinetic energy, thus improving the settling effect of lightweight materials.

[0051] In some embodiments, the angle between the second baffle 620 and the top wall of the settling chamber 230 is configured as 60°–65°, and the angle between the third baffle 630 and the top wall of the settling chamber 230 is configured as 60°–65°. The second baffle 620 and the third baffle 630, in conjunction with the first baffle 610, can effectively reduce the airflow velocity entering the settling chamber, decrease the wind's ability to carry materials, and improve the settling efficiency of lightweight materials.

[0052] Reference Figure 4 In some embodiments, the first baffle 610 and the second baffle 620 are provided with vents 613. The vents 613 increase the flow area of ​​the settling chamber 230, reduce airflow resistance, and thus reduce the energy consumption of the main fan 310 and the auxiliary fan 410. The size of the vents 613 can be set according to the particle size of the material to prevent material from entering the suction box 240 through the vents 613.

[0053] Reference Figure 1 , Figure 2 In some embodiments, the air intake box 240 has a trapezoidal cross-sectional shape. The main return pipe 510 and the secondary return pipe 520 are respectively arranged on the left and right sides of the trapezoidal air intake box 240, which facilitates pipe arrangement and can effectively separate airflows of different sizes into the main fan 310 and the secondary fan 410 with different powers, thus improving the effect. That is, the airflow entering the main fan 310 is greater than the airflow entering the secondary fan 410. The airflow entering the main fan 310 and the secondary fan 410 can be adjusted by the pipe diameter of the main return pipe 510 and the secondary return pipe 520. A baffle can also be set inside the air intake box 240 so that the airflow entering the air intake box 240 can smoothly enter the two main fans 310 and the secondary fans 410 with different powers according to the required amount.

[0054] Reference Figure 1 In some embodiments, a collector 340 is provided on the pipe between the main fan 310 and the first air nozzle 320. The collector 340 is used to collect objects that enter the pipe along the first air nozzle 320, so as to prevent stones or other debris from entering the pipe from the first air nozzle 320 and entering the inlet of the main fan 310, thereby preventing damage to the main fan 310.

[0055] Reference Figure 5 Collector 340 can adopt the structure shown in the figure. For example... Figure 5As shown, the collector 340 includes an inclined tube 341, a vertical tube 342, and a cover 343. One end of the inclined tube 341 is connected to the first air nozzle 320, and the other end is connected to the vertical tube 342. The cover 343 is detachably mounted on the end of the vertical tube 342 that is separated from the inclined tube 341. The pipe at the outlet end of the main fan 310 is connected to the upper side wall of the inclined tube 341. Objects such as stones and spheres entering from the first air nozzle 320 fall along the inclined tube 341 into the vertical tube 342, without entering the pipe at the outlet end of the main fan 310, thereby preventing damage to the main fan 310. The cover 343 can be opened periodically to discharge stones, spheres, and other debris from the vertical tube 342.

[0056] Reference Figure 1 In some embodiments, the air separator system further includes a dust removal device 700. A diversion valve 710 is installed on the pipe between the main fan 310 and the first air nozzle 320, and the inlet end of the dust removal device 700 is connected to the diversion valve 710. A small portion of the dust-laden air drawn by the main fan 310 enters the dust collector through the diversion valve 710, is processed by the dust collector, and then enters the atmosphere or other processes. Most of the air passes through the collector 340 and then enters the first separation chamber 210 through the first air nozzle for the air separation process.

[0057] The air classifier system of this invention adopts the structure of the above embodiments, which not only solves the problems of insufficient separation accuracy and poor sedimentation effect of ordinary single-drum air classifiers, but also solves the problems of easy material blockage in the pipeline, poor airflow stability, and poor airflow layout in related technologies. Furthermore, the air classifier system of this invention can adapt to larger outputs and different material separation requirements, and is applicable to agriculture (such as grain cleaning), mining (such as ore sorting), waste treatment (such as plastic and metal separation), and other fields.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An air separator system, characterized in that, include: The housing contains a first separation chamber, a second separation chamber, and a settling chamber arranged sequentially within it. The first separation chamber, the second separation chamber, and the settling chamber are connected in sequence. The bottom of the first separation chamber is provided with a first discharge port, the bottom of the second separation chamber is provided with a second discharge port, and the bottom of the settling chamber is provided with a third discharge port. The top of the settling chamber is provided with multiple suction boxes that are connected to the settling chamber. The multiple suction boxes are spaced apart along the length direction of the settling chamber. The main separation device includes a main fan, a first air nozzle, and a first rotating drum. The first rotating drum is rotatably disposed in the first separation chamber. The inlet end of the first air nozzle is connected to the outlet end of the main fan, and the outlet end of the first air nozzle is disposed in the first separation chamber to blow air into the first separation chamber. The auxiliary separation device includes an auxiliary fan, a second air nozzle, and a second rotating drum. The second rotating drum is rotatably disposed in the second separation chamber. The inlet end of the second air nozzle is connected to the outlet end of the auxiliary fan, and the outlet end of the second air nozzle is disposed in the second separation chamber to blow air into the second separation chamber. A return air duct is connected to the intake box and communicates with the settling chamber to maintain a negative pressure state in the settling chamber. The top wall of the settling chamber is provided with multiple flow-disrupting components, which are arranged along the length of the settling chamber and extend away from the top wall of the settling chamber. Each flow-disrupting component includes a first flow-disrupting plate, a second flow-disrupting plate, and a third flow-disrupting plate arranged sequentially along the length of the settling chamber. The first, second, and third flow-disrupting plates are all transversely arranged within the settling chamber, and the distance from the top wall of the settling chamber to the end of the first flow-disrupting plate away from the top wall of the settling chamber is... The distance is L1, the distance from the top wall of the settling chamber to the end of the second baffle away from the top wall of the settling chamber is L2, and the distance from the top wall of the settling chamber to the end of the third baffle away from the top wall of the settling chamber is L3, wherein L1>L3>L2; the first baffle and the second baffle are both inclined in the direction away from the second separation chamber, and the third baffle is inclined in the direction close to the second separation chamber; a fourth baffle is provided on the top of the second separation chamber near the settling chamber, and the fourth baffle extends in the direction close to the third discharge port of the settling chamber.

2. The air separator system according to claim 1, characterized in that, The first baffle plate has a first inclined section and a second inclined section. The first inclined section is close to the top wall of the settling chamber, and the second inclined section is located on the side of the first inclined section away from the settling chamber. The angle between the first inclined section and the top wall of the settling chamber is 60°-70°, and the angle between the second inclined section and the top wall of the settling chamber is 70°-80°.

3. The air separator system according to claim 1, characterized in that, The first spoiler and the second spoiler are provided with ventilation holes.

4. The air separator system according to claim 1, characterized in that, The air intake box has a trapezoidal cross-sectional shape. The return air duct includes a main return duct and a secondary return duct connected to the air intake box. The main return duct is connected to the air inlet of the main fan, and the secondary return duct is connected to the air inlet of the secondary fan.

5. The air separator system according to claim 1, characterized in that, A collector is installed on the pipe between the main fan and the first nozzle to collect the material that enters the pipe along the first nozzle.

6. The air separator system according to claim 1, characterized in that, It also includes a dust removal device, and a diversion valve is provided on the pipe between the main fan and the first air nozzle. The inlet end of the dust removal device is connected to the diversion valve.

7. The air separator system according to claim 1, characterized in that, It also includes an infeed conveying device and an outfeed conveying device. The outfeed end of the infeed conveying device is connected to the material inlet end of the first separation chamber, and the outfeed conveying device is located at the bottom of the settling chamber to receive the material coming out of the third discharge port.

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