Sorting device

Abstract

This invention provides a sorting device, comprising: a blower; a wind box having multiple air chambers, each air chamber having an air inlet and an air outlet, the air inlet of each air chamber being connected to the blower; a sieve plate for placing materials to be sorted, the sieve plate covering the air outlets of the multiple air chambers, at least a portion of the sieve plate being vibratoryly configured to screen the materials; and multiple movable parts, each movablely disposed within an air chamber to adjust the airflow of the air chamber, the multiple movable parts being arranged one-to-one with the multiple air chambers. The sorting device of this invention solves the problem of poor vibrating sieving effect in existing air-separation devices.

Description

Technical Field

[0001] This invention relates to the field of coal sorting technology, and more specifically, to a sorting device. Background Technology

[0002] Dry coal preparation technology has broad application prospects due to its advantages such as no water consumption, low cost, and no pollution after dust removal. Existing air separators mainly include a high-frequency vibrating screen, a blower, a main air duct, and air chambers. The air chambers are located below the high-frequency vibrating screen. The blower outlet is connected to the main air duct inlet, and the main air duct is connected to the air inlet pipes of each air chamber. Raw coal is fed onto the high-frequency vibrating screen. At the same time, the air sent by the blower is blown upwards through the air chambers to the top of the screen. By continuously introducing air, the raw coal above the screen is loosened. Under the action of the vibrator, the loosened raw coal gradually forms a lower gangue layer, an intermediate mixed layer, and an upper clean coal layer, and finally the clean coal and gangue are separated to achieve air separation.

[0003] However, the airflow from the air chamber to the vibrating screen cannot be controlled or adjusted, resulting in poor vibrating effect and ultimately affecting the sorting effect. Summary of the Invention

[0004] The main objective of this invention is to provide a sorting device to solve the problem of poor sieving effect in existing air-separation devices.

[0005] To achieve the above objectives, the present invention provides a sorting device, comprising: a blower; a wind box having multiple air chambers, each air chamber having an air inlet and an air outlet, the air inlet of each air chamber being connected to the blower; a sieve plate for placing materials to be sorted, the sieve plate covering the air outlets of the multiple air chambers, at least a portion of the sieve plate being vibratoryly arranged to screen the materials to be sorted; and multiple movable parts, each movable part being movably arranged within an air chamber to adjust the airflow of the air chamber, the multiple movable parts being arranged one-to-one with the multiple air chambers.

[0006] Furthermore, the sorting device includes: multiple rotating shafts, each rotating shaft passing through the air chamber and the movable component, the multiple rotating shafts and the multiple movable components being connected one-to-one so that each movable component rotates around the axis of the corresponding rotating shaft; wherein, the movable component is a movable plate.

[0007] Furthermore, the sorting device includes: multiple first drive components, each of which is mounted on a bellows, and the multiple first drive components are driven and connected to multiple rotating shafts in a one-to-one correspondence.

[0008] Furthermore, each of the first drive components includes a drive motor, the output shaft of which is connected to the rotating shaft; or, each of the first drive components includes: a gear, which is sleeved on the rotating shaft; a rack, which meshes with the gear; a first slider, which is fixedly connected to the rack; and a screw, which is threadedly connected to the first slider. The screw is rotatably configured so that the rotation of the screw drives the first slider and the rack to move, thereby driving the gear and the rotating shaft to rotate.

[0009] Furthermore, the sorting device includes: multiple partition plates, which are spaced apart within the air box to form multiple air chambers; at least some of the partition plates are movably arranged to adjust the gas flow cross-sectional area of ​​each air chamber.

[0010] Furthermore, the sorting device includes a second drive assembly, which includes a transmission rod that is pulsatorically connected to multiple partition plates. The transmission rod is movably configured to drive the multiple partition plates to move.

[0011] Furthermore, the second drive assembly also includes a drive component, which is a piston cylinder. The piston rod of the piston cylinder is connected to a transmission rod, and the transmission rod is fixedly connected to multiple partition plates. Alternatively, the drive component is a drive motor, and the output shaft of the drive motor is connected to the transmission rod. The second drive assembly also includes multiple second sliders, which are connected to multiple partition plates one-to-one. The multiple second sliders are threadedly connected to the transmission rod so as to drive the transmission rod to rotate through the drive motor, thereby moving the second sliders and partition plates.

[0012] Furthermore, there are multiple second drive components, which are spaced apart along the air outlet direction of the air chamber.

[0013] Furthermore, there are multiple air boxes, each with multiple air chambers, and each air chamber is equipped with multiple moving parts; a discharge assembly is provided between each two adjacent air boxes, and each discharge assembly is connected to the screen plates on both sides respectively.

[0014] Furthermore, the discharge assembly includes: a discharge trough and a discharge port that are interconnected, through which the material to be sorted after being screened by the vibrating screen plate enters the discharge trough; a discharge wheel that is rotatably disposed in the discharge trough; a detection component that is installed on the inner wall of the discharge trough and is located on the side of the discharge wheel away from the discharge port, so as to detect whether there is any material to be sorted that has fallen into the discharge trough; and a telescopic structure that is installed on the outside of the discharge trough, at least a portion of which can extend to the inside of the discharge trough, and is signal-connected to the detection component so that the telescopic structure can be controlled to extend or retract according to the detection result of the detection component.

[0015] Applying the technical solution of this invention, a sorting device is provided, comprising: a blower; a wind box having multiple air chambers, each air chamber having an air inlet and an air outlet, the air inlet of each air chamber being connected to the blower; a screen plate for placing the material to be sorted, the screen plate covering the air outlets of the multiple air chambers, at least a portion of the screen plate being vibratoryly arranged to screen the material to be sorted; and multiple movable parts, each movable part being movably arranged within an air chamber to adjust the airflow of the air chamber. The multiple movable parts are arranged one-to-one with the multiple air chambers, so that the airflow of each air chamber can be adjusted by the movable parts to ensure that each area on the screen plate has a suitable and sufficient airflow, so that the material to be sorted in each area can be fully loosened, thereby ensuring the vibrating screening effect of the material to be sorted and improving the sorting effect. The material to be sorted is raw coal. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of the overall structure of an embodiment of the sorting device according to the present invention is shown;

[0018] Figure 2 It shows that according to Figure 1 An enlarged schematic diagram of area A of the sorting device;

[0019] Figure 3 A schematic diagram of the structure of the air box of the sorting device according to the present invention is shown;

[0020] Figure 4 It shows that according to Figure 3 An enlarged schematic diagram of area B of the bellows;

[0021] Figure 5 A schematic diagram of the internal structure of the bellows of the sorting device according to the present invention is shown;

[0022] Figure 6 A top view of the bellows of the sorting device according to the present invention is shown;

[0023] Figure 7 It shows that according to Figure 6 A schematic diagram of the CC section of the bellows;

[0024] Figure 8 It shows that according to Figure 7 An enlarged schematic diagram of region D of the bellows.

[0025] The above figures include the following reference numerals:

[0026] 10. Blower; 20. Air box; 200. Air chamber; 201. Air inlet; 202. Air outlet; 30. Screen plate; 40. Moving parts; 400. Rotating shaft; 50. First drive assembly; 51. Gear; 52. Rack; 53. First slider; 54. Screw; 60. Divider plate; 70. Second drive assembly; 71. Transmission rod; 72. Second slider; 80. Discharge assembly; 800. Discharge chute; 801. Discharge port; 81. Discharge wheel; 82. Detection component; 83. Telescopic structure;

[0027] 55. Install components;

[0028] 700, slide rail; 701, third slider; 720, clearance groove;

[0029] 830. Loose board;

[0030] 101. Feed inlet; 102. Discharge outlet. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Please refer to Figures 1 to 8 This invention provides a sorting device, comprising: a blower 10; a wind box 20 having multiple air chambers 200, each air chamber 200 having an air inlet 201 and an air outlet 202, the air inlet 201 of each air chamber 200 being connected to the blower 10; a sieve plate 30 for placing materials to be sorted, the sieve plate 30 covering the air outlets 202 of the multiple air chambers 200, at least a portion of the sieve plate 30 being vibratoryly configured to screen the materials to be sorted; and multiple movable... Each movable component 40 is movably disposed within the air chamber 200 to adjust the airflow of the air chamber 200. Multiple movable components 40 are arranged one-to-one with multiple air chambers 200, ensuring that the airflow of each air chamber 200 can be adjusted via the movable components 40. This guarantees that each area on the screen plate 30 receives a suitable and sufficient airflow, allowing the material to be sorted in each area to be fully loosened, thereby ensuring the vibrating effect of the material and improving the sorting efficiency. The material to be sorted is raw coal.

[0033] To enable the movable parts to be movably arranged, the sorting device of this application includes: multiple rotating shafts 400, each rotating shaft 400 passing through the air chamber 200 and the movable part 40, and the multiple rotating shafts 400 and the multiple movable parts 40 being connected one-to-one, so that each movable part 40 rotates around the axis of the corresponding rotating shaft 400; wherein, the movable part 40 is a movable plate, so as to block the airflow through the plate surface, and adjust the angle of the movable plate by rotating the movable plate, thereby adjusting the air volume of each air chamber.

[0034] Specifically, the sorting device includes: multiple first drive components 50, each of which is mounted on the air box 20, and the multiple first drive components 50 are connected to multiple rotating shafts 400 in a one-to-one driving connection to facilitate the rotation of the movable plate.

[0035] Optionally, each of the first drive components 50 includes a drive motor, the output shaft of which is connected to the rotating shaft 400 to achieve automatic rotation of the movable plate; or, as... Figure 4 As shown, each of the first drive components 50 includes: a gear 51, which is sleeved on the rotating shaft 400; a rack 52, which meshes with the gear 51; a first slider 53, which is fixedly connected to the rack 52; and a screw 54, which is threadedly connected to the first slider 53. The screw 54 is rotatably configured so that the rotation of the screw 54 drives the first slider 53 and the rack 52 to move, thereby driving the gear 51 and the rotating shaft 400 to rotate. The rotation of the screw 54 adjusts the amount of movement of the rack, thereby adjusting the amount of rotation of the gear and the rotating shaft 400. This makes the rotation of the movable plate smooth and the adjustment accuracy high. The rotation of the screw can be done manually, reducing the use of a motor and saving costs.

[0036] Specifically, each movable component is located at the air inlet 201 of each air chamber 200; the movable plate is a rectangular plate, the gas flow section of each air chamber 200 is rectangular, each movable plate extends along the length direction of the corresponding air chamber 200, and the width direction of each movable plate is the same as the width direction of each air chamber 200.

[0037] like Figure 4 As shown, each of the first drive components 50 further includes: a mounting component 55, which is mounted on the air box 20. The mounting component 55 includes a U-shaped plate formed by a first plate segment, a second plate segment, and a third plate segment connected in sequence. The first plate segment and the second plate segment are arranged in parallel. A screw 54 passes through the first plate segment and the second plate segment. A first slider 53 is sleeved on the screw 54 and located between the first plate segment and the second plate segment. A rack 52 is located above the first slider 53.

[0038] In this application, the sorting device includes: a plurality of partition plates 60, which are spaced apart in the air box 20 to form a plurality of air chambers 200; at least some of the partition plates 60 are movably arranged to adjust the gas flow cross-sectional area of ​​each air chamber 200, so as to adapt to the sorting of different raw coals, and can be combined with the movable part 40 to adjust the air volume, further ensuring the vibrating effect of the screen plate.

[0039] Specifically, each movable component 40 includes: a first plate body, on which a rotating shaft 400 passes; a second plate body, in which the first plate body has a movable groove, and the second plate body is movably inserted, so that the movable plate can adjust its width according to the movement of the partition plate 60, thereby improving the flexibility of the movable plate; and a locking structure, which includes a locking shaft connected to the second plate body, a movable slide groove provided on the inner wall of the movable groove, and the locking shaft movably disposed in the movable slide groove, so that the movement of the second plate body is smooth. The locking structure also includes a locking nut, which is sleeved on the locking shaft and threadedly connected to the locking shaft, so that after the locking shaft and the movable plate move to a predetermined position, the movable plate is fixed in the predetermined position by the mutual cooperation of the locking nut and the locking shaft.

[0040] like Figure 5 As shown, the sorting device includes a second drive assembly 70, which includes a transmission rod 71. The transmission rod 71 is connected to multiple partition plates 60 in a transmission manner. The transmission rod 71 is movably arranged so as to drive the multiple partition plates 60 to move through the movement of the transmission rod 71.

[0041] To achieve automatic movement of the partition plates 60, the second drive assembly 70 further includes a drive component, which is a piston cylinder. The piston rod of the piston cylinder is connected to the transmission rod 71, and the transmission rod 71 is fixedly connected to the multiple partition plates 60. Alternatively, the drive component is a drive motor, and the output shaft of the drive motor is connected to the transmission rod 71. The second drive assembly 70 also includes multiple second sliders 72, which are connected to the multiple partition plates 60 one by one. The multiple second sliders 72 are threadedly connected to the transmission rod 71 so that the transmission rod 71 can be driven to rotate by the drive motor, thereby moving the second sliders 72 and the partition plates 60.

[0042] Preferably, there are multiple second drive components 70, which are spaced apart along the air outlet direction of the air chamber 200 to make the movement of the partition plate 60 smooth.

[0043] like Figure 3 , Figure 7 and Figure 8As shown, the bellows 20 includes a first side plate, a second drive assembly 70 mounted on the first side plate, the first side plate having a clearance groove 720, a transmission rod 71 located within the clearance groove 720, and each second slider 72 sleeved on the transmission rod 71. At least a portion of each second slider 72 is located within the clearance groove 720 to ensure a tight fit between the partition plate 60 and the first side plate, preventing a large amount of airflow from flowing out from the gap between the partition plate 60 and the first side plate. The bellows 20 also includes a second side plate, which is disposed opposite to the first side plate. A slide rail 700 and a third slider 701 are provided on the second side plate. The third slider 701 is connected to the partition plate 60 and is movably disposed on the slide rail 700. Each partition plate 60 is provided with multiple third sliders 701 and multiple slide rails 700. The distribution direction of the multiple slide rails 700 is the same as the distribution direction of the multiple second drive components 70. Each third slider 701 is arranged in a one-to-one correspondence with the multiple slide rails 700. In this way, sliders and corresponding moving tracks are provided on both sides of the partition plate 60 to make the movement of the partition plate 60 smooth.

[0044] Specifically, there are multiple air boxes 20, each air box 20 has multiple air chambers 200, and each air chamber 200 is provided with multiple moving parts 40; a discharge assembly 80 is provided between two adjacent air boxes 20, and each discharge assembly 80 is connected to the screen plates 30 on both sides respectively.

[0045] like Figure 2 As shown, the discharge assembly 80 includes: a discharge trough 800 and a discharge port 801 connected to each other, through which the material to be sorted after being vibrated and screened by the screen plate 30 enters the discharge trough 800 through the discharge port 801; a discharge wheel 81 rotatably disposed in the discharge trough 800; a detection component 82 mounted on the inner wall of the discharge trough 800, located on the side of the discharge wheel 81 away from the discharge port 801, for detecting whether there is any material to be sorted that has fallen into the discharge trough 800; and a telescopic structure 83 mounted on the outside of the discharge trough 800, at least a portion of which can extend to the inside of the discharge trough 800, and connected to the detection component 82 by a signal, so that the telescopic structure 83 can be controlled to extend or retract according to the detection result of the detection component 82.

[0046] Specifically, the telescopic structure 83 is located on the side of the discharge trough 800 near the discharge port 801. The discharge assembly 80 also includes a control component, which is connected to both the telescopic structure 83 and the detection component 82. When the detection component 82 does not detect any gangue falling into the discharge trough 800 within a set time, it indicates that the discharge port 801 is blocked. At this time, the control component controls at least a portion of the telescopic structure 83 to pass through the side wall of the discharge trough 800 and controls the telescopic structure 83 to extend and retract back and forth to loosen the gangue blocking the discharge port 801, allowing the gangue to be discharged normally. The detection component 82 is a photoelectric sensor.

[0047] Preferably, there are multiple detection components 82, which are arranged at intervals around the circumference of the discharge trough 800 to improve detection accuracy; wherein, if at least one detection component 82 does not detect any gangue falling into the discharge trough 800 within a set time, it indicates that the discharge port 801 is blocked.

[0048] Specifically, the telescopic structure 83 includes a telescopic cylinder and a loosening plate 830. The piston rod of the telescopic cylinder is connected to the loosening plate 830 so that the telescopic cylinder drives the loosening plate 830 to extend or retract toward the discharge port.

[0049] Specifically, the sorting device includes a feed inlet 101 and a discharge outlet 102, which are respectively distributed on both sides of multiple air boxes 20, so that raw coal enters from the feed inlet 101 and is located on the screen plate above the air box 20. After passing through multiple air boxes 20 and the screen plate above them in sequence, the clean coal is discharged from the discharge outlet 102. The lower layer of gangue enters the discharge trough 800 through the discharge outlet 801 between two adjacent air boxes 20. The gangue is driven to be discharged into the discharge trough by the rotation of the discharge wheel 81.

[0050] Specifically, the discharge assembly 80 also includes a discharge drive motor, which is connected to the discharge wheel to drive the discharge wheel to rotate.

[0051] Specifically, the screen plate 30 is set at a preset angle with the horizontal plane. During the vibration process, more heavy materials are deposited on the side near the discharge trough 800, while less heavy materials are deposited on the side near the feed inlet 101. Therefore, each area on the screen plate 30 uses a different air volume, which can adjust each air chamber 200 from left to right to gradually increase the air intake, so as to achieve layered air output and make the sorting more refined.

[0052] In the embodiments of this application, each air box 20 has six air chambers 200 arranged from left to right (from the inlet 101 to the outlet 102). The angle between the surface of the movable plate (moving component 40) in the first air chamber 200 and the horizontal plane is 15°, the angle between the movable plate in the second air chamber 200 and the horizontal plane is 30°, the angle between the movable plate in the third air chamber 200 and the horizontal plane is 45°, the angle between the movable plate in the fourth air chamber 200 and the horizontal plane is 60°, the angle between the movable plate in the fifth air chamber 200 and the horizontal plane is 75°, and the angle between the movable plate in the sixth air chamber 200 and the horizontal plane is 90°. Because there is more heavy material deposition (gangue) closer to the outlet 801, that is, the heavy material deposition at the bottom of the screen plate 30 gradually increases from left to right, the air intake in the air chambers 200 gradually increases from left to right, which can better stratify the raw coal at the corresponding positions. In addition, the angle of each movable plate can be finely adjusted for different batches of raw coal, thereby improving the vibrating screen effect of the sorting device and increasing the sorting efficiency.

[0053] A method of using the sorting device described above includes the following steps:

[0054] Step S1, material conveying step, the raw coal material to be sorted enters the bed box of the sorting device from the feeding port 101 of the feeding device;

[0055] Step S2, material leveling step: the air sent by the blower 10 will be blown upward to the screen plate 30 through the air chamber 200. By continuously introducing air, the raw coal above the screen plate 30 will be fluffed up. Under the action of the vibrator, the fluffy raw coal will gradually form a heavy density layer (gangue) and a light density layer (clean coal).

[0056] Step S3, wind power supply and adjustment step, adjust the rotation angle of the movable plate (moving part 40) to control the air volume suitable for feeding raw coal, control the air volume of different areas on a screen plate 30, make the raw coal above the screen plate 30 fluffy, so that the raw coal in different areas of the screen plate 30 can be better separated into layers.

[0057] Step S4, material discharge step: the lower heavy density layer is discharged into the discharge trough 800, and the upper fine coal layer (light density layer) is discharged from the discharge port 102 of the bed box.

[0058] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0059] This invention provides a sorting device, comprising: a blower 10; a wind box 20 having multiple air chambers 200, each air chamber 200 having an air inlet 201 and an air outlet 202, the air inlet 201 of each air chamber 200 being connected to the blower 10; a sieve plate 30 for placing materials to be sorted, the sieve plate 30 covering the air outlets 202 of the multiple air chambers 200, at least a portion of the sieve plate 30 being vibratoryly configured to screen the materials to be sorted; and multiple movable... Components 40, each movable component 40, are movably arranged within the air chamber 200 to adjust the airflow of the air chamber 200. Multiple movable components 40 are arranged one-to-one with multiple air chambers 200, so that the airflow of each air chamber 200 can be adjusted via the movable components 40 to ensure that each area on the screen plate 30 has a suitable and sufficient airflow, allowing the material to be sorted in each area to be fully loosened, thereby ensuring the vibrating effect of the material to be sorted and improving the sorting effect. The material to be sorted is raw coal.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A sorting device, characterized in that, The sorting device comprises: a blower (10); a plurality of air boxes (20), each of which has an air inlet (201) and an air outlet (202), and the air inlet (201) of each air box (200) is communicated with the blower (10); a sieve plate (30) for placing materials to be sorted, the sieve plate (30) is arranged on the air outlets (202) of the plurality of air boxes (200), and at least a part of the sieve plate (30) is arranged to be vibratable to screen the materials to be sorted; a plurality of movable components (40), each of which is movably arranged in the air box (200) to adjust the air outlet of the air box (200), and the plurality of movable components (40) are arranged in one-to-one correspondence with the plurality of air boxes (200); the sorting device comprises a plurality of rotating shafts (400), each of which is arranged on the air box (200) and the movable component (40), and the plurality of rotating shafts (400) and the plurality of movable components (40) are connected in one-to-one correspondence to make each movable component (40) rotate around the axis of the corresponding rotating shaft (400); wherein the movable component (40) is a movable plate; the sorting device comprises an inlet (101) and an outlet (102), and the inlet (101) and the outlet (102) are respectively arranged on both sides of the plurality of air boxes (20); the air boxes (200) of each air box (20) are arranged in multiple from the inlet (101) to the outlet (102), and the movable plate in each air box (200) is arranged at an angle between the plate surface and the horizontal plane, and each angle gradually increases along the direction from the inlet (101) to the outlet (102); the sorting device comprises a plurality of partition plates (60) arranged in the air box (20) to form a plurality of air boxes (200), and at least part of the plurality of partition plates (60) is movably arranged to adjust the gas flow cross-sectional area of each air box (200); each movable component (40) comprises: a first plate body portion, the rotating shaft (400) is arranged on the first plate body portion; a second plate body portion, the first plate body portion has a moving groove, and the second plate body portion is movably inserted into the moving groove to adjust the plate width of the movable plate according to the movement of the partition plate (60), thereby improving the flexibility of the movable plate; the sorting device comprises a second driving assembly (70), the second driving assembly (70) comprises a transmission rod (71), the transmission rod (71) is in transmission connection with the plurality of partition plates (60), and the transmission rod (71) is movably arranged to drive the plurality of partition plates (60) to move through the movement of the transmission rod (71).

2. The sorting device of claim 1, wherein, The sorting device comprises: A plurality of first driving assemblies (50), each of the first driving assemblies (50) is installed on the bellow (20), and the plurality of first driving assemblies (50) are in one-to-one correspondence with the plurality of rotating shafts (400) and are drivingly connected.

3. The sorting device according to claim 2, wherein, Each of the first driving assemblies (50) comprises a driving motor, and an output shaft of the driving motor is connected with the rotating shaft (400); or, Each of the first driving assemblies (50) comprises a gear (51) sleeved on the rotating shaft (400), a rack (52) engaged with the gear (51), a first sliding block (53) fixedly connected with the rack (52), and a screw rod (54) threadedly connected with the first sliding block (53), wherein the screw rod (54) is rotatably arranged to drive the first sliding block (53) and the rack (52) to move by rotation of the screw rod (54), so as to drive the gear (51) and the rotating shaft (400) to rotate.

4. The sorting device of claim 1, wherein, The second driving assembly (70) further comprises a driving component, The driving component is a piston cylinder, a piston rod of the piston cylinder is connected with the transmission rod (71), and the transmission rod (71) is fixedly connected with the plurality of partition plates (60); or The driving component is a driving motor, an output shaft of the driving motor is connected with the transmission rod (71), and the second driving assembly (70) further comprises a plurality of second sliding blocks (72), the plurality of second sliding blocks (72) are in one-to-one correspondence with the plurality of partition plates (60), and the plurality of second sliding blocks (72) are threadedly connected with the transmission rod (71) to drive the transmission rod (71) to rotate by the driving motor, so as to drive the second sliding blocks (72) and the partition plates (60) to move.

5. The sorting device of claim 1, wherein, The second driving assembly (70) is a plurality of second driving assemblies (70) which are arranged at intervals along the air outlet direction of the air chamber (200).

6. The sorting device according to any one of claims 1 to 5, wherein, The bellow (20) is a plurality of bellows (20), each of the bellows (20) has a plurality of air chambers (200), and each of the air chambers (200) is provided with a plurality of movable components (40); Adjacent two of the plurality of bellows (20) are provided with a material discharging assembly (80) therebetween, and each of the material discharging assemblies (80) is connected with the two-sided screen plate (30).

7. The sorting device of claim 6, wherein, The material discharging assembly (80) comprises: A material discharging groove (800) and a material discharging port (801) which are in communication with each other, the material to be sorted after being vibrated and screened by the screen plate (30) enters the material discharging groove (800) from the material discharging port (801); A material discharging wheel (81) which is rotatably arranged in the material discharging groove (800), A detection component (82) is installed on the inner wall surface of the discharge chute (800), and is located on the side of the discharge wheel (81) away from the discharge port (801) to detect whether the to-be-sorted material falling into the discharge chute (800) is in the discharge chute (800) through the detection component (82); A telescopic structure (83) is installed on the outer side of the discharge chute (800), and at least part of the telescopic structure (83) can be extended to the inner side of the discharge chute (800), and the telescopic structure (83) is signal connected with the detection component (82) to control the telescopic structure (83) to extend or retract according to the detection result of the detection component (82).

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