A reject device for a material sorting apparatus

Abstract

The utility model relates to sorting equipment technical field especially relates to a kind of rejecting device for material sorting equipment, including machine body, two block branch plate top fixed mounting has fixed plate, the fixed plate lower surface rotation is equipped with rotor;The surface of the rotor in machine body is equipped with multiple blades, multiple The branch plate of the blade is divided into double layer, multiple the blade quantity in upper layer is more than multiple blade quantity in lower layer, and it is mutually staggered in circumferential direction, the radial angle of each blade and rotor is 22 °, and the thickness of the blade decreases from root. Rotor blade adopts double-layer staggered circumferential distribution design, the blade quantity in upper layer is more than lower layer and circumferential stagger, cooperate 22 ° radial angle and the thickness of root to top decreasing, can form spiral airflow channel, reduce airflow interference, improve material and airflow contact uniformity, greatly improve sorting accuracy and classification efficiency, while reduce rotor rotation resistance, reduce energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of sorting equipment technology, and in particular to a rejection device for material sorting equipment. Background Technology

[0002] Material sorting equipment is a key piece of equipment in industrial production for classifying material particle size and removing unqualified coarse particles. It is widely used in building materials, chemical, and mining industries. Its core working principle is that the rotor drives the blades to rotate, creating an airflow field. Combined with the air guide structure, the airflow is guided, allowing the material to be separated into coarse and fine particles under the combined action of airflow and centrifugal force. Qualified fine powder is discharged from the finished product outlet with the airflow, while unqualified coarse particles fall into the ash hopper under gravity and are removed, ultimately completing the material sorting and impurity removal operation.

[0003] The rejection devices of existing material sorting equipment mostly adopt a single-layer uniform distribution layout for rotor blades. This makes it easy for the flow field formed by the rotation of the blades to have vortex dead zones and large airflow fluctuations, resulting in uneven force on the material. Fine powder is easily rejected by mistake, and coarse particles are difficult to fall effectively, resulting in low sorting accuracy and failing to meet the requirements of high-precision production. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the prior art: the rotor blades of the existing material sorting equipment are mostly arranged in a single layer with uniform distribution, which makes it easy for the flow field formed by the rotation of the blades to have vortex dead angles and large airflow fluctuations, resulting in uneven force on the material, fine powder is easily mistakenly rejected, coarse particles are difficult to fall effectively, the sorting accuracy is low, and it cannot meet the requirements of high-precision production. Therefore, a rejection device for material sorting equipment is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A rejection device for a material sorting equipment includes a body, with symmetrical support plates on the upper surface of the body, a fixed plate fixedly installed on the top of the two support plates, symmetrical first air inlets on the side walls of the body, a ash hopper at the bottom of the body, multiple sets of second air inlets circumferentially arranged on the surface of the ash hopper, a finished product outlet communicating with its own interior on the upper surface of the body, and a rotor rotatably mounted on the lower surface of the fixed plate, the rotor being controlled to rotate by a drive assembly. The rotor is fixedly mounted with multiple blades in a circular shape on the surface of the machine body. The multiple blades are divided into two layers, with more blades in the upper layer than in the lower layer, and they are staggered in the circumferential direction. The radial angle between each blade and the rotor is 22°. The thickness of the blades decreases from the root. The inner wall of the machine body is provided with a high-efficiency vortex air guide assembly.

[0006] Preferably, the high-efficiency vortex air guide assembly includes multiple mounting rings fixedly installed on the inner wall of the machine body. The spacing between each pair of adjacent mounting rings increases from top to bottom. Multiple air guide vanes are fixedly installed at equal intervals between each pair of adjacent mounting rings. The length of the multiple air guide vanes increases from top to bottom. The angle between the air guide vanes and the radial direction of the machine body is 35°, and the tilt direction of the air guide vanes is consistent with the rotation direction of the rotor.

[0007] Preferably, the drive assembly includes a drive motor fixedly mounted on the top of the fixed plate, the output shaft of the drive motor passing through the fixed plate and fixedly connected to the rotor.

[0008] Preferably, the upper surface of the machine body is symmetrically provided with material inlets, and the upper surface of the fixed plate is vertically and symmetrically fixed with feeding tracks, and the bottom of the two feeding tracks respectively covers the two material inlets.

[0009] Preferably, the side wall of the feeding track has an opening, and a T-shaped spreading disc is slidably inserted into the opening. The upper surface of the spreading disc has multiple openings, and an installation block is fixedly installed on the lower surface of the spreading disc. Multiple partitions are fixedly installed at equal intervals on the left and right side walls of the installation block, and a spreading channel is formed between two adjacent partitions. The spreading disc is locked by a locking component.

[0010] Preferably, the locking assembly includes a rotating shaft and a locking block fixedly installed at one end of the rotating shaft. An arc-shaped locking groove is provided on the upper surface of the spreading disc, and a circular groove is provided on the side wall of the feeding track. The rotating shaft is rotatably installed in the circular groove, and the locking block is slidably locked in the locking groove. A torsion spring is sleeved on the rotating shaft, and the two ends of the torsion spring are fixedly connected to the surface of the locking block and the groove wall of the circular groove, respectively.

[0011] Preferably, both the spreading disc and the blades are made of durable composite material, which is tungsten carbide-based wear-resistant ceramic.

[0012] Preferably, a laser particle size analyzer for real-time acquisition of finished product particle size data is fixedly installed inside the finished product outlet, and multiple sets of wind speed sensors are fixedly installed longitudinally at equal intervals inside the machine body. The multiple sets of wind speed sensors are used to monitor the airflow speed in the upper, middle and lower parts of the machine body, respectively, and a torque sensor for real-time feedback of its own load is provided at the rotor end.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The rotor blades adopt a double-layer staggered circumferential distribution design. The upper layer has more blades than the lower layer and they are staggered circumferentially. Combined with a 22° radial angle and a thickness that decreases from the root to the top, a spiral airflow channel can be formed, which reduces airflow interference, improves the uniformity of material and airflow contact, greatly improves sorting accuracy and grading efficiency, and at the same time reduces rotor rotation resistance and energy consumption. 2. The high-efficiency vortex air guide assembly, through the layout of increasing mounting ring spacing and air guide blade length from top to bottom, and the inclined design with a 35° radial angle consistent with the rotor rotation direction, can form a synergistic vortex field with the rotor blades, stabilize the airflow velocity, enhance the classification and guiding effect on materials of different particle sizes, and further improve the stability of coarse particle removal effect. 3. The feeding track and the spreading disc are designed to work together. The spreading channel formed by the openings and partitions on the spreading disc can evenly disperse the material before it is fed into the machine body, avoiding material agglomeration that affects sorting. The locking components facilitate the disassembly and maintenance of the spreading disc, improving the ease of operation of the equipment. 4. The material spreading disc and blades are made of tungsten carbide-based wear-resistant ceramic composite material, which significantly enhances the wear resistance of the components, extends their service life, and reduces maintenance costs; 5. The laser particle size analyzer, wind speed sensor, and torque sensor can monitor the finished product particle size, airflow speed inside the machine, and rotor load in real time, providing data support for equipment operation status control, realizing intelligent sorting and rejection operations, and adapting to high-precision production needs. Attached Figure Description

[0014] Figure 1 This is a front perspective view of a rejection device for a material sorting equipment proposed in this utility model. Figure 2 This is a side perspective structural diagram of a rejection device for a material sorting equipment proposed in this utility model; Figure 3 This is a partial three-dimensional cross-sectional structural diagram of a rejection device for a material sorting equipment proposed in this utility model; Figure 4 This is a partial three-dimensional structural diagram of the rotor and high-efficiency vortex air guide assembly in this utility model. Figure 5 This is a partial three-dimensional structural diagram of the material spreading disc in this utility model; Figure 6 This is a partial three-dimensional disassembled structural diagram of the feeding track in this utility model; Figure 7 for Figure 6 Enlarged view of the structure at point A in the middle.

[0015] In the diagram: 1. Body, 2. Support plate, 3. Fixing plate, 4. First air inlet, 5. Ash hopper, 6. Second air inlet, 7. Finished product outlet, 8. Rotor, 9. Blade, 10. Mounting ring, 11. Air guide plate, 12. Drive motor, 13. Feeding track, 14. Through-hole, 15. Spreading disc, 16. Through-hole, 17. Mounting block, 18. Partition plate, 19. Rotating shaft, 20. Locking block, 21. Locking groove, 22. Torsion spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0018] Reference Figures 1-4 A rejection device for material sorting equipment includes a body 1, with support plates 2 symmetrically arranged on the upper surface of the body 1, and a fixing plate 3 fixedly installed on the top of the two support plates 2. First air inlets 4 are symmetrically arranged on the side wall of the body 1, and a ash hopper 5 is provided at the bottom of the body 1. Multiple sets of second air inlets 6 are arranged in a circular shape on the surface of the ash hopper 5. A finished product outlet 7 connected to the interior of the body 1 is provided on the upper surface of the body 1. A rotor 8 is rotatably arranged on the lower surface of the fixing plate 3, with its bottom end passing through the finished product outlet 7. The rotor 8 is controlled to rotate by a drive assembly, which includes a drive motor 12 fixedly installed on the top of the fixing plate 3. The output shaft of the drive motor 12 passes through the fixing plate 3 and is fixedly connected to the rotor 8.

[0019] The rotor 8 is located inside the body 1 and has multiple blades 9 fixedly installed in a circular shape on its surface. The multiple blades 9 are divided into two layers, with more blades 9 in the upper layer than in the lower layer, and they are staggered in the circumferential direction. The radial angle between each blade 9 and the rotor 8 is 22°. The thickness of the blades 9 decreases from the root to reduce rotational inertia and torque while ensuring strength, thus saving drive power. The inner wall of the body 1 is provided with a high-efficiency vortex air guide assembly, which includes multiple mounting rings 10 fixedly installed on the inner wall of the body 1. The spacing between any two adjacent mounting rings 10 increases from top to bottom. Multiple air guide vanes 11 are fixedly installed at equal intervals between any two adjacent mounting rings 10. The length of the multiple air guide vanes 11 increases from top to bottom. The radial angle between the air guide vanes 11 and the body 1 is 35°, and the tilt direction of the air guide vanes 11 is consistent with the rotation direction of the rotor 8.

[0020] After the drive motor 12 starts, it drives the rotor 8 and the double-layer blades 9 fixed on it to rotate at high speed. Since the upper blade 9 has a higher density, it can initially cut and guide the airflow. The lower blade 9 has a lower density, receives the upper airflow and further sorts it, avoiding direct collision between the upper and lower airflows. The upper and lower blades 9 are staggered in the circumferential direction, so that the airflow disturbance areas of adjacent blades 9 are staggered, reducing the turbulence formed by the superposition of local airflows. In addition, the blades 9 and the rotor 8 form a 22° radial angle. Combined with the thickness design that decreases from the root to the top, the airflow flows smoothly along the surface of the blades 9, reducing the airflow separation phenomenon caused by the abrupt change in the shape of the blades 9. This reduces the mutual interference between airflows and forms a spiral airflow channel, which not only reduces the mutual interference between airflows, but also improves the uniformity of material and airflow contact and enhances the difference in force on materials of different particle sizes.

[0021] Simultaneously, external airflow enters the interior of the machine body 1 through the first air inlet 4 on the side wall of the machine body 1 and multiple sets of second air inlets 6 on the surface of the ash hopper 5. In the high-efficiency vortex air guide assembly on the inner wall of the machine body 1, the spacing between multiple mounting rings 10 increases from top to bottom, and the length of the air guide vanes 11 between adjacent mounting rings 10 increases synchronously. They are at a 35° angle to the radial direction of the machine body 1, and the tilt direction is consistent with the rotation direction of the rotor 8. This can match the direction of the rotating airflow formed by the blades 9, avoiding turbulence caused by directional conflict. The spacing between the mounting rings 10 increases from top to bottom, and the length of the air guide vanes 11 increases synchronously. The air guiding range gradually expands with the height of the body 1, adapting to the axial diffusion trend of the airflow when the blades 9 rotate, ensuring a uniform transition of airflow velocity between the upper and lower parts. The air guide vanes 11 are fixed to the inner wall of the body 1, forming a static guiding channel, which cooperates with the dynamic airflow field formed by the rotation of the blades 9 of the rotor 8. The static air guide vanes 11 constrain the airflow boundary, and the dynamic blades 9 provide rotational power. The two work together to make the airflow flow stably along the preset spiral trajectory, ultimately forming a synergistic vortex field to guide the airflow to form a stable synergistic vortex field, further enhancing the graded guiding effect of the airflow on the material.

[0022] After the material enters the machine body 1, it is sorted under the combined action of centrifugal force formed by the rotating blades 9 and airflow force of the vortex field. Fine particles move upward with the airflow because the airflow force is greater than the centrifugal force, and are finally discharged through the finished product outlet 7. Coarse particles are thrown towards the inner wall of the machine body 1 because the centrifugal force is dominant, and fall to the ash hopper 5 under the action of gravity, completing the rejection operation.

[0023] Reference Figure 6 The upper surface of the machine body 1 has symmetrically arranged material inlets, and the upper surface of the fixing plate 3 has vertically and symmetrically fixed feeding rails 13. The bottom of the two feeding rails 13 covers the two material inlets respectively, and the side walls of the feeding rails 13 have through openings 14, such as... Figure 5As shown, a T-shaped spreading disc 15 is slidably inserted into the opening 14. Multiple openings 16 are formed on the upper surface of the spreading disc 15. An installation block 17 is fixedly installed on the lower surface of the spreading disc 15. Multiple partitions 18 are equidistantly installed on the left and right side walls of the installation block 17, forming a spreading channel between adjacent partitions 18. The spreading disc 15 is locked by a locking assembly. Figure 7 As shown, the locking assembly includes a rotating shaft 19 and a locking block 20 fixedly installed at one end of the rotating shaft 19. An arc-shaped locking groove 21 is provided on the upper surface of the feeding disc 15, and a circular groove is provided on the side wall of the feeding track 13. The rotating shaft 19 is rotatably installed in the circular groove, and the locking block 20 is slidably locked in the locking groove 21. A torsion spring 22 is sleeved on the rotating shaft 19, and the two ends of the torsion spring 22 are fixedly connected to the surface of the locking block 20 and the groove wall of the circular groove, respectively.

[0024] When the material enters from the top of the feeding track 13, it first contacts the T-shaped spreading disc 15. The spreading disc 15 is stably embedded in the feeding track 13, which can both receive the falling material and guide the material to its own dispersion structure, avoiding the accumulation and blockage of the material in the feeding track 13, thus laying the foundation for subsequent uniform spreading. The material will then pass through multiple evenly opened openings 16 on the upper surface of the spreading disc 15, which can break the possible agglomeration of the material and initially disperse the originally concentrated material into multiple small flow streams of material, avoiding the problem of uneven airflow contact caused by large agglomerated materials directly entering the machine body 1, and improving the dispersion of the material when it enters the next stage.

[0025] The material passing through the inlet 16 will continue to fall to the mounting block 17 on the lower surface of the spreading plate 15. Multiple partitions 18 are fixed on the left and right side walls of the mounting block 17, forming multiple spreading channels. These spreading channels will further divert the initially dispersed material, allowing the material to spread evenly to both sides along the guide of the partitions 18, avoiding the material from falling into a certain area inside the machine body 1. This ensures that the material can come into full contact with the internal airflow after entering the machine body 1, greatly improving the sorting accuracy and reducing the problem of coarse particles being missed or fine particles being mistakenly rejected due to uneven material distribution.

[0026] When the material spreading disc 15 is located inside the through-hole 14 and is installed, the locking block 20 in the locking assembly is precisely locked in the slot 21 of the material spreading disc 15. Under the elastic force of the torsion spring 22, the locking block 20 and the slot 21 are tightly fitted, thereby restricting the material spreading disc 15 from moving laterally, i.e., along the length of the through-hole 14, ensuring that the material spreading disc 15 is stable during the material falling process. When it is necessary to disassemble the material spreading disc 15, the operator first moves the exposed end of the locking block 20 by hand, causing the locking block 20 to rotate around the rotating shaft 19. During the rotation, the locking block 20 will compress the torsion spring 22 until the locking block 20 is completely disengaged from the slot 21, releasing the lateral restriction on the material spreading disc 15. Then, the operator holds the outer end of the horizontal section of the material spreading disc 15 and pulls it away from the feeding track 13, causing the material spreading disc 15 to gradually slide out along the through-hole 14 until it is completely disengaged from the feeding track 13, thus completing the disassembly.

[0027] During installation, first align the material spreading disc 15 with the opening 14 of the feeding track 13 and push it smoothly into the feeding track 13 until it contacts the inner wall of the feeding track 13. At this point, the material spreading disc 15 can no longer move, reaching the preset installation position. Simultaneously, the material spreading disc 15 will completely cover the opening 14, sealing it. The side wall of the material spreading disc 15 will also fit tightly against the inner wall of the feeding track 13, forming a seal. At this point, the slot 21 on the material spreading disc 15 is aligned with the locking block 20 of the locking component. The operator releases the locking block 20, which was previously moved to avoid interference. The torsion spring 22 releases its compressed elasticity, pushing the locking block 20 to reset around the rotating shaft 19 and slide into the slot 21, thus automatically locking the material spreading disc 15 and completing the installation.

[0028] Both the feeding disc 15 and the blades 9 are made of durable composite materials, which are tungsten carbide-based wear-resistant ceramics.

[0029] Tungsten carbide-based wear-resistant ceramics extend the service life of the spreading disc 15 and the blades 9, reducing downtime maintenance costs and production interruptions caused by frequent replacement of worn parts. At the same time, it ensures the uniform spreading effect of the spreading disc 15 and the long-term stability of the airflow guidance and material sorting function of the blades 9, ensuring that the overall sorting efficiency and rejection accuracy of the equipment are not affected by the wear of parts.

[0030] The finished product outlet 7 is equipped with a laser particle size analyzer for real-time acquisition of finished product particle size data, as disclosed in patent publication number CN204374036U, entitled "Online Cement Particle Size Detection Device," which is prior art. Its working principle will not be described in detail here. Multiple sets of wind speed sensors are fixedly installed longitudinally at equal intervals inside the machine body 1, as disclosed in patent publication number CN213121982U, entitled "An Omnidirectional Wind Speed ​​Sensor Based on NTC Thermistor," which is prior art. Its working principle will not be described in detail here. These multiple wind speed sensors are used to monitor the airflow speed in the upper, middle, and lower parts of the machine body 1. The rotor 8 is equipped with a torque sensor for real-time feedback of its own load, as disclosed in patent publication number CN210690042U, entitled "Life Testing Device," which is prior art. Its working principle will not be described in detail here.

[0031] The laser particle size analyzer at the finished product outlet 7 collects finished product particle size data in real time, which can quickly determine whether the finished product meets the particle size requirements, promptly detect abnormalities such as coarse particles mixed in fine powder, and avoid the output of unqualified finished products. Multiple sets of wind speed sensors distributed longitudinally inside the machine body 1 monitor the airflow speed in the upper, middle and lower parts respectively, which can accurately capture the differences in airflow field distribution, provide data support for adjusting the air intake and optimizing the stability of the vortex field, and ensure uniform force on the material sorting. The torque sensor at the rotor 8 provides real-time feedback on the load, which can promptly warn of abnormal load on rotor 8 caused by material overload or component jamming, avoiding damage to the drive components. At the same time, the load changes can indirectly determine the material processing volume and the working status of the blades 9, which helps to dynamically adjust the equipment operating parameters, ultimately realizing intelligent monitoring of the sorting process, improving the finished product qualification rate and equipment operation safety.

[0032] In this invention, the blades 9 of the rotor 8 adopt a double-layer staggered circumferential distribution design. The number of upper blades 9 is greater than that of lower blades 9 and they are staggered circumferentially. Combined with a 22° radial angle and a thickness that decreases from the root to the top, a spiral airflow channel can be formed, which reduces airflow interference, improves the uniformity of material and airflow contact, greatly improves sorting accuracy and grading efficiency, and at the same time reduces the rotational resistance of the rotor 8 and reduces energy consumption.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A reject device for a material sorting plant, comprising a body (1), characterized in that, The upper surface of the body (1) is symmetrically provided with support plates (2), and the top of the two support plates (2) is fixedly installed with a fixing plate (3). The side wall of the body (1) is symmetrically provided with a first air inlet (4). The bottom of the body (1) is provided with a ash hopper (5). The surface of the ash hopper (5) is provided with multiple sets of second air inlets (6) in a circular shape. The upper surface of the body (1) is provided with a finished product outlet (7) that is connected to its own interior. The lower surface of the fixing plate (3) is rotatably provided with a rotor (8) whose bottom end passes through the finished product outlet (7). The rotor (8) is controlled to rotate by a drive assembly. The rotor (8) is fixedly mounted with multiple blades (9) in a circular shape on the surface inside the body (1). The multiple blades (9) are divided into two layers. The number of multiple blades (9) in the upper layer is greater than the number of multiple blades (9) in the lower layer, and they are staggered in the circumferential direction. The radial angle between each blade (9) and the rotor (8) is 22°. The thickness of the blades (9) decreases from the root. The inner wall of the body (1) is provided with a high-efficiency vortex air guide assembly.

2. The rejection device for a material sorting equipment according to claim 1, characterized in that, The high-efficiency vortex air guide assembly includes multiple mounting rings (10) fixedly installed on the inner wall of the body (1). The distance between each two adjacent mounting rings (10) increases from top to bottom. Multiple air guide vanes (11) are fixedly installed at equal intervals between each two adjacent mounting rings (10). The length of the multiple air guide vanes (11) increases from top to bottom. The angle between the air guide vanes (11) and the radial direction of the body (1) is 35°, and the tilt direction of the air guide vanes (11) is consistent with the rotation direction of the rotor (8).

3. The rejection device for a material sorting equipment according to claim 1, characterized in that, The drive assembly includes a drive motor (12) fixedly mounted on the top of the fixed plate (3), the output shaft of the drive motor (12) passing through the fixed plate (3) and fixedly connected to the rotor (8).

4. The rejection device for a material sorting equipment according to claim 1, characterized in that, The upper surface of the machine body (1) is symmetrically provided with material inlets, and the upper surface of the fixed plate (3) is vertically and symmetrically fixed with feeding tracks (13), and the bottom of the two feeding tracks (13) covers the two material inlets respectively.

5. A rejection device for a material sorting equipment according to claim 4, characterized in that, The feeding track (13) has a through-hole (14) on its side wall. A T-shaped spreading disc (15) is slidably inserted into the through-hole (14). The upper surface of the spreading disc (15) has multiple openings (16). An installation block (17) is fixedly installed on the lower surface of the spreading disc (15). Multiple partitions (18) are fixedly installed at equal intervals on the left and right side walls of the installation block (17). A spreading channel is formed between two adjacent partitions (18). The spreading disc (15) is locked by a locking component.

6. A rejection device for a material sorting equipment according to claim 5, characterized in that, The locking assembly includes a rotating shaft (19) and a locking block (20) fixedly installed at one end of the rotating shaft (19). The upper surface of the feeding disc (15) is provided with an arc-shaped locking groove (21). The side wall of the feeding track (13) is provided with a circular groove. The rotating shaft (19) is rotatably installed in the circular groove. The locking block (20) is slidably locked in the locking groove (21). A torsion spring (22) is sleeved on the rotating shaft (19). The two ends of the torsion spring (22) are fixedly connected to the surface of the locking block (20) and the groove wall of the circular groove, respectively.

7. A rejection device for a material sorting equipment according to claim 5, characterized in that, The spreading disc (15) and blades (9) are both made of durable composite material, which is tungsten carbide-based wear-resistant ceramic.

8. A rejection device for a material sorting equipment according to claim 1, characterized in that, A laser particle size analyzer for real-time acquisition of finished product particle size data is fixedly installed inside the finished product outlet (7). Multiple sets of wind speed sensors are fixedly installed longitudinally at equal intervals inside the machine body (1). The multiple sets of wind speed sensors are used to monitor the airflow speed in the upper, middle and lower parts of the machine body (1). A torque sensor for real-time feedback of its own load is provided at the rotor (8) end.

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