Multi-channel screening grain air separator based on air volume intelligent regulation

Abstract

The application discloses a multi-channel screening grain air separator based on air volume intelligent regulation and control, belongs to the technical field of air separators, and is used for solving the technical problems of lacking effective data collection on grain particles in air separation, existing many grain particles with heavy impurities such as stones and soil blocks that are not separated and separated successfully, and processing efficiency of air separation; the application comprises a support frame, and a light air separation box is arranged at the top of one end of the support frame; the application can collect process data between heavy impurities and finished product particles in air separation of the air separator, comprehensively and efficiently supervise the separated heavy particles and finished product particles after heavy air separation from the air separator, analyze and obtain relevant rating signals, and control relevant components for intelligent regulation and control according to the rating signals, so as to make up for defects in control operation of the previous air separator, and effectively improve air separation quality control and air separation efficiency of subsequent overall grain particles.

Description

Technical Field

[0001] This invention relates to the field of air separator technology, and in particular to a multi-channel grain air separator based on intelligent air volume control. Background Technology

[0002] Air separation utilizes the difference in suspension velocity between materials and impurities to remove impurities using wind power. The purpose of air separation is to remove light impurities and dust, while also removing some heavier impurities such as stones and clods of soil. This method is often used for cleaning oilseeds such as cottonseed and sunflower seeds, as well as for dust removal and foreign matter removal in industries such as grain and tobacco. This method is suitable for separating solid wastes with similar particle shapes and sizes. Sometimes, the materials can be crushed and screened first, and then air separation can be performed. Air separation equipment is divided into three types according to the main direction of the working airflow: horizontal, vertical, and inclined. Among them, the vertical airflow air separator is the most widely used.

[0003] Based on the above, it should be noted that traditional air separators lack effective data collection on the separated grain particles during use. This leads to abnormalities in the separation of grain particles with similar sizes but different weights from heavy materials such as stones and clods of soil. For example, differences in the size adaptability of airflow control result in insufficient traction force of airflow on grain particles of that size. Consequently, due to the downward pushing and obstruction of some stones and clods of soil, many grain particles are mixed with heavy materials such as stones and clods of soil and are not successfully separated, requiring subsequent secondary processing.

[0004] Furthermore, most common air separators use a single channel and rely on the grain's own weight for feeding. This can lead to blockages due to impurities such as stones and clods of earth, affecting the overall processing efficiency of the air separator. Additionally, during the secondary air separation process, there is a lack of proactive quantitative control of the feeding of grain particles and heavier impurities based on the required airflow traction. Consequently, some grain particles that fall vertically are interfered with by heavier impurities, affecting the overall air separation effect and processing efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-channel grain air separator based on intelligent airflow control. This invention collects process data on the separation of heavy impurities and finished grain particles within the air separator, obtaining the proportion of heavy impurities and finished grain particles. It also provides comprehensive and efficient monitoring of the separated heavy particles and finished grain particles during and after heavy impurity separation. Specifically, the collected data is digitized and compared with pre-stored data to obtain relevant rating signals. Based on these signals, related components are intelligently controlled to compensate for deficiencies in the control operation of the preceding air separator. Therefore, this effectively improves the overall quality control and efficiency of subsequent grain particle air separation, thus solving the technical problems raised in the background art.

[0006] The objective of this invention can be achieved through the following technical solution: a multi-channel grain screening air separator based on intelligent air volume control, comprising a support frame, a lightweight air separator box mounted on the top of one end of the support frame, a feeding drum mounted on the outer wall of the top of one end of the lightweight air separator box, a drive motor fixedly mounted on the outside of one end of the feeding drum, a rotating fan blade mounted on the inner wall of the top of one end of the lightweight air separator box near the feeding drum, and a guide plate provided below the rotating fan blade;

[0007] A vibrating screen box connected to a lightweight air classifier is located at the top center of the support frame. A material lifting machine is embedded in the outer wall of the vibrating screen box. Multiple sets of screen plates are mounted on the inner wall of one end of the vibrating screen box. A flow control box is located at the bottom of the outer wall of the other end of the vibrating screen box. A material collection rack is mounted on the top inner wall of the flow control box. An air jet rack is located below the material collection rack. A heavy air classifier box is located at the bottom of the outer side of the other end of the vibrating screen box. An adjustable exhaust fan is fixedly installed inside the heavy air classifier box. A control panel is fixedly installed on the outer wall of one side of the heavy air classifier box.

[0008] Preferably, a bracket 1 is provided at the top of one end of the support frame and is sleeved with the bottom of the lightweight air classifier box, and a bracket 2 is provided at the top of the other end of the support frame and is sleeved with the flow control box and the heavy air classifier box. A conveyor belt is inclinedly provided at the center of the top of the support frame, passing through the bracket 1 and the bracket 2, and the conveyor belt extends to the bottom of the heavy air classifier box.

[0009] Preferably, an upward-facing feed hopper is provided on the outer wall of the feed drum side, a spiral conveyor blade extending into the feed drum is provided at the output end of the drive motor, and a combined transmission rod extending into the lightweight air classifier is provided at the bottom of the output end of the drive motor, the combined transmission rod being connected to the rotating fan blades.

[0010] Preferably, the rotating fan blade is provided with a negative pressure suction channel connecting the guide plate and the feed drum on its side. Multiple sets of anti-flow plates are provided on the inner wall of the end of the lightweight air classifier away from the rotating fan blade, and the anti-flow plates are located below the guide plate. An air intake pipe is provided at the bottom of the rotating fan blade, and a lightweight outlet penetrating the lightweight air classifier is provided at the bottom of the air intake pipe.

[0011] Preferably, an eccentric transmission rod is connected to the central shaft at one end of the rotating fan blade near the guide plate, a limiting sleeve is fixedly installed on the bottom housing of the rotating fan blade, and a scraper is slidably sleeved at the bottom of the limiting sleeve. The top of the scraper is engaged with the bottom of the eccentric transmission rod, and a vertical opening penetrating the lightweight air separator is provided below one side of the counterflow plate.

[0012] Preferably, the bottom of the lifting machine is provided with a material bag, the top of the lifting machine is provided with a guide port that penetrates the vibrating screen box and extends to the top of the screen plate, a vibrating frame that is drivenly connected to the screen plate is provided on the inner wall of one end of the vibrating screen box, a vibrating motor that is drivenly connected to the vibrating frame is installed at the bottom of one end of the vibrating screen box, a material collection trough is provided directly below the screen plate, and a particle discharge port that penetrates the side wall of the vibrating screen box is provided directly below the material collection trough. A second counterflow plate is installed obliquely on the inner wall of the other end of the vibrating screen box near the bottom of the screen plate, and an oblique outlet that penetrates the vibrating screen box is provided below the second counterflow plate.

[0013] Preferably, the top of one end of the flow control box is provided with an inclined inlet connected to the inclined outlet, the top of the collection rack is located below the inclined inlet, a rotary motor is provided on the inner wall of one end of the flow control box near the collection rack, an adjusting plate is rotatably connected to the top surface of the collection rack, and a transmission component connected to the rotary motor is provided on the top of the adjusting plate, and a flat plate is provided at the bottom of the collection rack horizontally connected to the inner wall of the other end of the flow control box, and adjusting screws are sleeved at the center of the inner walls on both sides of the flat plate.

[0014] Preferably, multiple sets of feeding plates are sleeved between the adjusting screws, and sealing plates that are sleeved with the adjusting screws are slidably embedded in the inner walls of both ends of the plate. Multiple sets of nozzles are embedded in the top of the feeding plates. A guide rod that is sleeved with the feeding plates and sealing plates is provided on the inner side of the adjusting screw. Multiple sets of electric push rods are mounted in the center of the inner wall of one end of the flow control box, and jet frames that face the heavy air classifier are sleeved between the electric push rods. A heavy discharge port that penetrates the flow control box is provided below the electric push rod.

[0015] Preferably, the heavy mass air classifier has a suction port that penetrates the flow control box at the middle of one end, a material collection trough at the bottom of the suction port, an interception net near the adjustable exhaust fan at the top of the material collection trough, multiple sets of air exchange ports at the end of the heavy mass air classifier away from the flow control box, and a finished product discharge port penetrating the heavy mass air classifier at the bottom of the material collection trough.

[0016] Preferably, the control panel is internally equipped with a processor, a data acquisition module, a self-test feedback module, and a signal execution module;

[0017] The data acquisition module is used to collect the heavy mass collection and mixing ratio Qi and the finished product collection ratio Wi of the air separator within a time threshold. The heavy mass collection and mixing ratio Qi and the finished product collection ratio Wi are sent to the self-test feedback module through the processor, and a period of time within the operation time of the air separator is set as the time threshold.

[0018] After receiving the heavy-quality mixed proportion value Qi and the finished product mixed proportion value Wi, the self-test feedback module immediately analyzes the air volume screening efficiency of the air classifier. The specific analysis process is as follows: the heavy-quality mixed proportion value Qi and the finished product mixed proportion value Wi of the air classifier within the time threshold are obtained, the air volume screening efficiency Xo is obtained by formula, and the preset air volume screening efficiency Yo stored in the processor is immediately retrieved and compared with the air volume screening efficiency Xo for analysis.

[0019] If the air volume screening efficiency Xo is not within the range of the preset air volume screening efficiency Yo, it is determined that there is an abnormal air volume setting in the air separator, a control signal is generated, and the control signal is sent to the signal execution module via the processor. After receiving the control signal, the signal execution module immediately controls the adjustable exhaust fan to work; if the air volume screening efficiency Xo is within the range of the preset air volume screening efficiency Yo, no signal is generated.

[0020] The beneficial effects of this invention are as follows:

[0021] (1) This invention collects process data on the separation of heavy impurities and finished particles in the air separator by collecting air volume data, obtains the proportion of heavy impurities and finished particles, and conducts comprehensive and efficient monitoring of the separated heavy particles and finished particles from the heavy impurity separation and after heavy impurity separation in the air separator. That is, after the collected object data is digitized, it is compared with the pre-stored data in a comprehensive range, and the results are analyzed to obtain relevant rating signals. Based on this, the relevant components are controlled to perform intelligent regulation to make up for the defects in the control operation of the preceding air separator, thus effectively improving the quality control and efficiency of the subsequent overall grain particle air separation.

[0022] (2) The present invention uses the linkage of the lightweight air separation box and the vibrating screen box to discharge the light impurities of the grain particles to be processed, and to separate the broken particles and small impurities in the grain particles by vibrating screen separation, thus forming a primary treatment of the grain particles and effectively improving the efficiency and accuracy of the subsequent heavy air separation of the grain particles.

[0023] (3) This invention uses a control flow distribution box and a heavy air separation box in a coordinated manner. The collection rack and the discharge plate control the amount of grain particles to be fed and separate them. The feeding efficiency of the grain particles is controlled by the adjustment plate, which effectively avoids the accumulation and blockage of grain particles on the collection rack. The rising and falling grain particles collide with the grain particles above the discharge plate under the multiple effects of their own weight, gravity and airflow, causing them to come into contact with each other and disperse under the action of force. The adjustable exhaust fan and the jet frame are coordinated to form the circulation of airflow. The airflow is used to draw the lighter finished particles of similar weight into the collection trough, while the heavier particles are offset by their own weight and gravity and fall into the heavy discharge port. This makes it easy to intelligently control the air volume and achieve the accuracy of air separation. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings;

[0025] Figure 1 This is a three-dimensional view of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the supporting frame of the present invention;

[0027] Figure 3 This is a schematic diagram of the lightweight air classifier and the feed rotary drum of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the vibrating screen box of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the flow control box and the heavy mass air separator of the present invention;

[0030] Figure 6 This is a top view of the material cutting plate of the present invention;

[0031] Figure 7 This is a flowchart of the system of the present invention.

[0032] Legend: 1. Support frame; 101. Bracket 1; 102. Bracket 2; 103. Conveyor belt; 2. Lightweight air separator; 201. Rotary fan blade; 202. Guide plate; 203. Counterflow plate 1; 204. Eccentric transmission rod; 205. Limiting sleeve; 206. Scraper; 207. Suction pipe; 208. Lightweight discharge port; 209. Vertical opening; 3. Feed drum; 301. Drive motor; 302. Feed hopper; 303. Combined transmission rod; 4. Vibrating screen box; 401. Lifting machine; 402. Vibrating motor; 403. Vibrating... 404. Frame; 405. Screen plate; 406. Counterflow plate II; 407. Collection trough; 408. Inclined outlet; 409. Particle discharge outlet; 5. Quantity control and diversion box; 501. Collection frame; 502. Rotary motor; 503. Adjusting plate; 504. Adjusting screw; 505. Discharge plate; 506. Electric push rod; 507. Air jet frame; 508. Heavy discharge outlet; 509. Sealing plate; 510. Guide rod; 6. Heavy air separator; 601. Adjustable exhaust fan; 602. Interception net; 603. Material collection trough; 604. Finished product discharge outlet; 7. Control panel. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1:

[0035] This embodiment addresses the problem that traditional air separators lack effective data collection on the separated grain particles during operation. This leads to abnormal separation of grain particles with similar sizes but different weights from heavy materials such as stones and clods of earth. For example, differences in airflow control can result in insufficient traction force from the airflow on grain particles of that size. Consequently, due to the downward pushing and obstruction of some stones and clods, many grain particles remain mixed with heavy materials such as stones and clods and are not successfully separated, requiring subsequent secondary processing.

[0036] Please see Figure 1 - Figure 7As shown, this embodiment is a multi-channel grain air separator based on intelligent airflow control, including a support frame 1. A lightweight air separator box 2 is mounted on the top of one end of the support frame 1. A feed drum 3 is mounted on the outer wall of the top of one end of the lightweight air separator box 2. A drive motor 301 is fixedly mounted on the outside of one end of the feed drum 3. A rotating fan blade 201 is mounted on the inner wall of the top of one end of the lightweight air separator box 2, close to the feed drum 3. A guide plate 202 is provided below the rotating fan blade 201. A center point is located at the top of the support frame 1, adjacent to the lightweight air separator box 2. The vibrating screen box 4 is connected. A lifting machine 401 is embedded on the outer wall of the vibrating screen box 4. Multiple sets of screen plates 404 are mounted on the inner wall of one end of the vibrating screen box 4. A flow control box 5 is set at the bottom of the outer wall of the other end of the vibrating screen box 4. A material collection rack 501 is mounted on the inner wall of the top of the flow control box 5. An air jet rack 507 is set below the material collection rack 501. A heavy air classifier box 6 is set at the bottom of the outer side of the other end of the vibrating screen box 4. An adjustable exhaust fan 601 is fixedly installed inside the heavy air classifier box 6. A control panel 7 is fixedly installed on the outer wall of one side of the heavy air classifier box 6.

[0037] The control panel 7 is internally equipped with a processor, a data acquisition module, a self-test feedback module, and a signal execution module; the data acquisition module collects the heavy mass collection mixing ratio Qi and the finished product collection ratio Wi of the air separator within 30 minutes of operation and sends them to the self-test feedback module via the processor;

[0038] It should be noted that: the heavy mass collection mixing ratio value Qi represents the maximum and minimum ratio of cross-shaped impurities and bumps among the impurities collected after heavy mass separation by the air separator and passing through the heavy mass outlet 508 within the time threshold, and the finished product particles that were not successfully air-separated. The value of the heavy mass collection mixing ratio value Qi reflects the air volume generated by the adjustable exhaust fan 601 during the heavy mass air separation of the air separator, and whether it matches the air volume required for air separation of grain particles of this size. The greater the difference between the value and the preset matching range, the more likely there will be air separation residue. The finished product collection ratio value Wi represents the amount of finished product particles obtained within the time threshold. In addition, the heavy mass collection mixing ratio value Qi is collected by the object detection sensor installed inside the heavy mass outlet 508, and the finished product collection ratio value Wi is collected by the flow sensor installed inside the finished product outlet 604.

[0039] After receiving the heavy-volume aggregate ratio value Qi and the finished product aggregate ratio value Wi, the self-test feedback module immediately analyzes the airflow screening efficiency of the air classifier. The specific analysis process is as follows:

[0040] The heavy mixture ratio Qi and the finished product aggregation ratio Wi of the air classifier were obtained within a 30-minute operation period, and then processed by the formula. The airflow screening efficiency Xo is obtained, where a and b are the proportional coefficients of the proportion of heavy mass collection and mixing Qi and the proportion of finished product collection W, respectively, a>b>0. Xo represents the airflow screening efficiency, and the preset airflow screening efficiency Yo stored in the processor is immediately retrieved and compared with the airflow screening efficiency Xo for analysis.

[0041] If the airflow screening efficiency Xo is not within the range of the preset airflow screening efficiency Yo, it is determined that there is an abnormal airflow setting in the air separator, a control signal is generated, and the control signal is sent to the signal execution module via the processor. The processor further analyzes the set of airflow screening efficiencies Xo that generated the control signal:

[0042] S1: When the air volume screening efficiency Xo is greater than the maximum value of the preset air volume screening efficiency Yo, the generated control signal is marked to obtain control signal one;

[0043] S2: When the air volume screening efficiency Xo is less than the maximum value of the preset air volume screening efficiency Yo, the generated control signal is marked to obtain control signal two;

[0044] Upon receiving the first control signal, the signal execution module immediately controls the adjustable exhaust fan 601 to operate. The adjustable exhaust fan 601 reduces its speed, decreases the size of the active traction airflow, and simultaneously reduces the airflow delivery of the jet frame 507 connected to the adjustable exhaust fan 601. The electric push rod 506 moves the jet frame 507 away from the feed plate 505. The rotary motor 502 drives the adjusting screw 504 to rotate via the electric clutch, coupling, and transmission rod. The adjusting screw 504 drives the feed plate 505 to move back and forth, causing the grain particles accumulated on the top of the feed plate 505 to fall faster along the gaps. Meanwhile, the adjustable exhaust fan 601 is connected to the nozzles on the feed plate 505 via pipelines and provides airflow to its interior. The airflow blows along the nozzles towards the top of the accumulated grain particles, causing the grain particles to separate and become fluffy, which helps them fall quickly into the movable gaps.

[0045] After receiving the second control signal, the signal execution module drives the rotary motor 502 to rotate the adjusting plate 503 counterclockwise upward via the coupling and transmission components, causing the grain particles entering the control flow box 5 to be buffered and roll down along the surface of the adjusting plate 503 to the top of the feeding plate 505, increasing the grain particle transportation progress. The electric clutch, coupling and transmission rod intermittently drive the adjusting screw 504 to drive the rotary motor 502, causing the feeding plate 505 to intermittently slide back and forth along the surface of the guide rod 510, reducing the feeding efficiency of the accumulated grain falling down. Meanwhile, the adjustable exhaust fan 601 increases its speed and increases the air supply to the jet plate. The electric push rod 506 drives the jet plate to approach the adjustable exhaust fan 601. After the speed of the adjustable exhaust fan 601 rises to a specified value, when its airflow traction force is sufficient, the feeding plate 505 is reset to maintain its original working state, and the adjusting plate 503 continues to slide down and reset.

[0046] If the airflow screening efficiency Xo is within the range of the preset airflow screening efficiency Yo, no signal will be generated.

[0047] Example 2:

[0048] This embodiment addresses the problem that most traditional air separators use a single channel and rely on the weight of the grain for feeding. These air separators are prone to clogging due to impurities such as stones and clods of earth, affecting overall processing efficiency. Furthermore, during the secondary air separation process, the feeding of grain particles and heavier impurities after initial separation lacks the ability to actively adjust the quantity based on airflow requirements. This results in some concentrated, vertically falling grain particles being interfered with by heavier impurities, impacting the overall air separation effect and processing efficiency.

[0049] Please see Figure 1 - Figure 4 As shown, the multi-channel grain air separator based on intelligent air volume control in this embodiment includes a support frame 1 with a bracket 101 at one top end that fits into the bottom of the light-weight air separator 2, and a bracket 102 at the other top end that fits into the flow control box 5 and the heavy-weight air separator 6. A conveyor belt 103 is inclinedly arranged at the top center of the support frame 1, passing through the bracket 101 and the bracket 102, and the conveyor belt 103 extends to the bottom of the heavy-weight air separator 6; a feed drum 3 has a side wall with... The upward-facing feed hopper 302 has a spiral conveyor blade extending into the feed drum 3 at the output end of the drive motor 301, and a combined transmission rod 303 extending into the lightweight air classifier 2 at the bottom of the output end of the drive motor 301. The combined transmission rod 303 is connected to the rotating fan blade 201. The grain particles to be processed are transported and fed into the feed hopper 302 by an external device. The drive motor 301 drives the spiral conveyor blade to rotate via a coupling, which pushes the grain particles to be processed along the feed drum 3 into the lightweight air classifier 2.

[0050] A negative pressure material extraction channel is provided on the side of the rotating fan blade 201, connecting the guide plate 202 and the feed drum 3. Multiple sets of counterflow plates 203 are provided on the inner wall of the end of the lightweight air separator 2 away from the rotating fan blade 201, and the counterflow plates 203 are located below the guide plate 202. An air intake pipe 207 is provided at the bottom of the rotating fan blade 201, and a lightweight outlet 208 penetrating the lightweight air separator 2 is provided at the bottom of the air intake pipe 207. A lightweight outlet 208 is provided on the inner wall of one end of the lightweight outlet 208. An auxiliary exhaust fan blade is provided and is connected to the rotating fan blade 201 in a transmission. An eccentric transmission rod 204 is connected to the central shaft of the rotating fan blade 201 near the guide plate 202. A limit sleeve 205 is fixedly installed on the bottom shell of the rotating fan blade 201, and a scraper 206 is slidably sleeved on the bottom of the limit sleeve 205. The top of the scraper 206 is engaged with the bottom of the eccentric transmission rod 204. A vertical opening 209 is provided below the counterflow plate 203, penetrating the lightweight air separator box 2.

[0051] The rotating fan blade 201 is connected to the drive motor 301 via the combined transmission rod 303 and rotates. The airflow generated by its rotation is drawn into the lightweight air classifier 2 through the feed drum 3. As the drawn airflow flows along the negative pressure suction channel, it actively pulls the grain particles to be processed, causing them to gush and fall onto the guide plate 202. The particles then accelerate down the guide plate 202 and impact the counterflow plate 203, causing any stones, soil, and other impurities mixed in to explode. The bottom of the rotating fan blade 201 is connected to the suction network pipe 207 and pulls the air in the lightweight air classifier 2. Lighter impurities and dust from the flow and explosion enter the light discharge port 208 through the gap in the suction pipe 207. The drawn airflow enters the light discharge port 208 through the suction pipe 207. The scraper 206 is driven by the eccentric transmission rod 204 and the rotating fan blade 201. It slides up and down along the bottom of the limiting sleeve 205 and rubs the surface of the suction pipe 207 back and forth, causing the adhering impurities to fall into the light discharge port 208. The remaining grain particles are processed multiple times along the surface of the guide plate 202 and the counterflow plate 203 before falling into the vertical port 209.

[0052] The bottom of the feeder 401 is equipped with a material hopper, and the top of the feeder 401 is equipped with a guide port that penetrates the vibrating screen box 4 and extends to the screen plate 404. A vibrating frame 403, which is driven and connected to the screen plate 404, is installed on the inner wall of one end of the vibrating screen box 4. A vibrating motor 402, which is driven and connected to the vibrating frame 403, is installed at the bottom of one end of the vibrating screen box 4. A collection trough 406 is located directly below the screen plate 404, and a particle discharge port 408, which penetrates the side wall of the vibrating screen box 4, is located directly below the collection trough 406. A second counterflow plate 405, which is inclined and close to the bottom of the screen plate 404, is installed on the inner wall of the other end of the vibrating screen box 4. An inclined outlet 407, which penetrates the vibrating screen box 4, is located below the second counterflow plate 405. The material hopper is fitted with the bottom of the vertical opening 209. The feeder 401 collects the grain particles... The active traction lifts and feeds the grain particles onto the surface of the screen plate 404. The vibrating motor 402 drives the vibrating frame 403 to vibrate up and down through the coupling and eccentric wheel. The vibrating frame 403 drives the screen plate 404 to move synchronously. The screen plate 404 vibrates and screens the grain particles rolling on its surface. Some small particles fall along the screen plate 404 into the collection trough 406. The grain particles roll along the uppermost screen plate 404 and hit the second counterflow plate 405. They are then pulled and rolled along the second counterflow plate 405 to the middle screen plate 404, repeating until they fall into the inclined outlet 407. During this process, some inferior semi-crushed grain particles are broken, and smaller impurities fall along the screen plate 404 into the collection trough 406, and then fall into the particle discharge port 408.

[0053] Example 3:

[0054] Please see Figure 1 , Figure 5 , Figure 6 As shown, the multi-channel grain air separator based on intelligent air volume control in this embodiment includes a flow control box 5 with an inclined inlet connected to an inclined outlet 407 at one end. The top of the collecting rack 501 is located below the inclined inlet. A rotary motor 502 is installed on the inner wall of one end of the flow control box 5, close to the collecting rack 501. An adjusting plate 503 is rotatably connected to the top surface of the collecting rack 501, and a transmission component connected to the rotary motor 502 is installed on the top of the adjusting plate 503. A flat plate is installed at the bottom of the collecting rack 501, horizontally connected to the inner wall of the other end of the flow control box 5. The center of the inner walls on both sides of the flat plate... An adjusting screw 504 is sleeved on the plate; multiple sets of feeding plates 505 are sleeved between the adjusting screws 504; sealing plates 509 that are sleeved with the adjusting screws 504 are slidably embedded in the inner walls of both ends of the plate; multiple sets of nozzles are embedded in the top of the feeding plates 505; guide rods 510 that are sleeved with the feeding plates 505 and sealing plates 509 are provided on the inner side of the adjusting screws 504; multiple sets of electric push rods 506 are mounted on the center of the inner wall of one end of the flow control box 5; and jet frames 507 that face the heavy air classifier box 6 are sleeved between the electric push rods 506; and a heavy discharge port 508 that penetrates the flow control box 5 is provided below the electric push rods 506.

[0055] The rotary motor 502 drives the adjusting screw 504 to rotate via an electric clutch, coupling and transmission rod. The adjusting screw 504 drives the feeding plate 505 to move back and forth, causing the grain particles piled on top of the feeding plate 505 to fall down along the gap at an accelerated speed. Meanwhile, the adjustable exhaust fan 601 is connected to the nozzle on the feeding plate 505 via pipeline and provides airflow to its interior. The airflow blows along the nozzle toward the grain particles piled on top, causing the grain particles to separate and fluff up, which helps them fall quickly into the movable gap.

[0056] The rotary motor 502 drives the adjusting plate 503 to deflect and lift counterclockwise via the coupling and transmission components, causing the grain particles entering the control flow box 5 to be buffered and roll down along the surface of the adjusting plate 503 to the top of the feeding plate 505, increasing the transport progress of the grain particles. The electric clutch, coupling and transmission rod intermittently drive the adjusting screw 504 to drive the rotary motor 502, causing the feeding plate 505 to intermittently slide back and forth along the surface of the guide rod 510, reducing the feeding efficiency of the accumulated grain. Meanwhile, the adjustable exhaust fan 601 increases its speed and increases the air supply to the jet plate. The electric push rod 506 drives the jet plate to approach the adjustable exhaust fan 601. After the speed of the adjustable exhaust fan 601 rises to a specified value, when its airflow traction force is sufficient, the feeding plate 505 is reset to maintain its original working state, and the adjusting plate 503 continues to slide down and reset.

[0057] The heavy mass air classifier 6 has a suction port that penetrates the flow control box 5 at the middle of one end. A material collection trough 603 is provided at the bottom of the suction port. An interception net 602 close to the adjustable exhaust fan 601 is provided at the top of the material collection trough 603. Multiple sets of air exchange ports are provided at the end of the heavy mass air classifier 6 away from the flow control box 5. A finished product discharge port 604 that penetrates the heavy mass air classifier 6 is provided at the bottom of the material collection trough 603.

[0058] Combining Embodiments 1, 2, and 3, this system can collect process data on the separation of heavy impurities and finished particles within the air separator, obtaining the proportion of heavy impurities and finished particles. It also enables comprehensive and efficient monitoring of the separated heavy particles and finished particles during and after heavy impurity separation. This involves digitizing the collected data and comparing it with pre-stored data to obtain relevant rating signals. Based on this, related components are intelligently controlled to compensate for deficiencies in the preceding air separator control operation, thus effectively improving the overall quality control and efficiency of subsequent grain particle air separation. Furthermore, the light impurity air separator and vibrating screen box operate in tandem to initially remove light impurities from the grain particles and separate broken and fine impurities from the grain particles using a vibrating screen, thus performing primary processing of the grain particles and effectively improving the efficiency and accuracy of subsequent heavy impurity air separation.

[0059] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A multi-channel grain screening air separator based on intelligent air volume control, comprising a support frame (1), a lightweight air separator box (2) is mounted on the top of one end of the support frame (1), a feeding drum (3) is mounted on the outer wall of the top of one end of the lightweight air separator box (2), and a drive motor (301) is fixedly mounted on the outside of one end of the feeding drum (3), characterized in that, The lightweight air separator (2) has a rotating fan blade (201) installed on the inner wall of the top of one end, close to the feed drum (3), and a guide plate (202) is provided below the rotating fan blade (201). The support frame (1) has a vibrating screen box (4) connected to the light air classifier box (2) at the top center. The vibrating screen box (4) has a material lifting machine (401) embedded on its outer wall. Multiple sets of screen plates (404) are mounted on the inner wall of one end of the vibrating screen box (4). A flow control box (5) is set at the bottom of the outer wall of the other end of the vibrating screen box (4). A material collection rack (501) is mounted on the inner wall of the top of the flow control box (5). An air jet rack (507) is set below the material collection rack (501). A heavy air classifier box (6) is set at the bottom of the outer side of the other end of the vibrating screen box (4). An adjustable exhaust fan (601) is fixedly installed inside the heavy air classifier box (6). A control panel (7) is fixedly installed on the outer wall of one side of the heavy air classifier box (6). The bottom of the material collection rack (501) is provided with a flat plate that is horizontally connected to the inner wall of the other end of the flow control box (5), and an adjusting screw (504) is sleeved on the center of the inner wall on both sides of the flat plate. Multiple sets of feeding plates (505) are sleeved between the adjusting screws (504). Sealing plates (509) that are sleeved with the adjusting screws (504) are slidably embedded in the inner walls of both ends of the plate. Multiple sets of nozzles are embedded in the top of the feeding plates (505). Guide rods (510) that are sleeved with the feeding plates (505) and sealing plates (509) are provided on the inner side of the adjusting screws (504). Multiple sets of electric push rods (506) are mounted in the center of the inner wall of one end of the flow control box (5). Air jet frames (507) that face the heavy air classifier (6) are sleeved between the electric push rods (506). Heavy discharge ports (508) that penetrate the flow control box (5) are provided below the electric push rods (506). The heavy air classifier (6) has a suction port that penetrates the flow control box (5) at one end. A material collection trough (603) is provided at the bottom of the suction port. An interception net (602) close to the adjustable exhaust fan (601) is provided at the top of the material collection trough (603). Multiple sets of air exchange ports are provided at the end of the heavy air classifier (6) away from the flow control box (5). A finished product discharge port (604) penetrating the heavy air classifier (6) is provided at the bottom of the material collection trough (603).

2. The multi-channel grain air separator based on intelligent air volume control according to claim 1, characterized in that, The support frame (1) has a bracket (101) at one end of its top that is fitted to the bottom of the light air classifier (2), and a bracket (102) at the other end of its top that is fitted to the flow control box (5) and the heavy air classifier (6). The support frame (1) has a conveyor belt (103) at the top center that runs through the bracket (101) and the bracket (102), and the conveyor belt (103) extends to the bottom of the heavy air classifier (6).

3. The multi-channel grain air separator based on intelligent airflow control according to claim 1, characterized in that, The feed drum (3) has an upward-facing feed hopper (302) on its outer side wall. The output end of the drive motor (301) is provided with a spiral conveying plate extending into the feed drum (3). The bottom of the output end of the drive motor (301) is provided with a combined transmission rod (303) extending into the lightweight air separator (2). The combined transmission rod (303) is connected to the rotating fan blade (201) in a transmission connection.

4. The multi-channel grain air separator based on intelligent air volume control according to claim 1, characterized in that, The rotating fan blade (201) is provided with a negative pressure suction channel connecting the guide plate (202) and the feed drum (3) on its side. Multiple sets of anti-flow plates (203) are provided on the inner wall of the end of the lightweight air classifier (2) away from the rotating fan blade (201), and the anti-flow plates (203) are located below the guide plate (202). The bottom of the rotating fan blade (201) is provided with an air intake pipe (207), and the bottom of the air intake pipe (207) is provided with a lightweight outlet (208) that penetrates the lightweight air classifier (2).

5. The multi-channel grain air separator based on intelligent air volume control according to claim 4, characterized in that, An eccentric transmission rod (204) is connected to the central shaft at one end of the rotating fan blade (201) near the guide plate (202). A limiting sleeve (205) is fixedly installed on the bottom shell of the rotating fan blade (201), and a scraper (206) is slidably sleeved at the bottom of the limiting sleeve (205). The scraper (206) has an eccentric transmission rod (204) at the bottom of its top. A vertical opening (209) penetrating the lightweight air separator box (2) is provided below the first anti-flow plate (203).

6. The multi-channel grain air separator based on intelligent air volume control according to claim 1, characterized in that, The bottom of the lifting machine (401) is provided with a material bag, and the top of the lifting machine (401) is provided with a guide port that penetrates the vibrating screen box (4) and extends to the screen plate (404). A vibrating frame (403) that is connected to the screen plate (404) is provided on the inner wall of one end of the vibrating screen box (4). A vibrating motor (402) that is connected to the vibrating frame (403) is installed at the bottom of one end of the vibrating screen box (4). A material collection trough (406) is provided directly below the screen plate (404), and a particle discharge port (408) that penetrates the side wall of the vibrating screen box (4) is provided directly below the material collection trough (406). A second counterflow plate (405) that is close to the screen plate (404) is installed obliquely on the inner wall of the other end of the vibrating screen box (4). An oblique outlet (407) that penetrates the vibrating screen box (4) is provided below the second counterflow plate (405).

7. The multi-channel grain air separator based on intelligent air volume control according to claim 1, characterized in that, The top of one end of the flow control box (5) is provided with an inclined inlet connected to the inclined outlet (407). The top of the material collection rack (501) is located below the inclined inlet. A rotary motor (502) is provided on the inner wall of one end of the flow control box (5) near the material collection rack (501). An adjustment plate (503) is rotatably connected to the top surface of the material collection rack (501), and a transmission component connected to the rotary motor (502) is provided on the top of the adjustment plate (503).

8. The multi-channel grain air separator based on intelligent air volume control according to claim 1, characterized in that, The control panel (7) is internally equipped with a processor, a data acquisition module, a self-test feedback module and a signal execution module; The data acquisition module is used to collect the heavy mass aggregation and mixing ratio Qi and the finished product aggregation ratio Wi of the air separator within the time threshold and send them to the self-test feedback module via the processor; After receiving the heavy-quality mixed proportion value Qi and the finished product mixed proportion value Wi, the self-test feedback module immediately analyzes the air volume screening efficiency of the air classifier. The specific analysis process is as follows: the heavy-quality mixed proportion value Qi and the finished product mixed proportion value Wi of the air classifier within the time threshold are obtained, the air volume screening efficiency Xo is obtained by formula, and the preset air volume screening efficiency Yo stored in the processor is immediately retrieved and compared with the air volume screening efficiency Xo for analysis. If the air volume screening efficiency Xo is not within the range of the preset air volume screening efficiency Yo, it is determined that there is an abnormal air volume setting in the air separator, a control signal is generated, and the control signal is sent to the signal execution module via the processor. After receiving the control signal, the signal execution module immediately controls the adjustable exhaust fan (601) to work; if the air volume screening efficiency Xo is within the range of the preset air volume screening efficiency Yo, no signal is generated.

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