Material winnowing device

Abstract

The utility model provides a material winnowing device. The material winnowing device comprises a box body, an air suction pipe, a suction fan and a discharging pipeline, a feeding port is formed in the top of the box body, the right side of the box body extends out of the box body to form an air suction pipe opening with the caliber gradually reduced from left to right, the air suction pipe is communicated with the air suction pipe opening, the bottom wall of the box body is obliquely arranged downwards from the right side of the box body to the left side wall of the box body, and the tail end of the bottom wall is connected with a right pipe wall arranged downwards. A guide plate which is obliquely arranged towards the lower right side is formed on the lower section of the left side wall, and a left pipe wall which is arranged downwards is connected to the guide plate; the top end of the right pipe wall is higher than the top end of the left pipe wall, and the right pipe wall and the left pipe wall define a discharging pipeline. According to the material winnowing device, by arranging the suction fan, airflow enters the box body through the discharging guide pipe to conduct winnowing on the materials, light materials are discharged through the suction pipe, and therefore the sorting effect and the sorting efficiency are improved, and the efficient production requirement can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of material sorting, in particular to a material air sorting device. Background Art

[0002] At present, in the processing of bulk materials, especially in the production process of livestock feed processing, biomass pellet processing, mulch film collection and separation, a large amount of debris will be mixed in during the raw material harvesting, storage and product processing, which requires manual removal, which is time-consuming and laborious, and the removal effect is poor, seriously affecting the subsequent product quality and production efficiency. The commonly used solution is to use an air separation device to use airflow to separate materials of different weights, but the existing air separation device still has the problem of poor sorting effect and low sorting efficiency, which cannot meet the needs of efficient production. Utility Model Content

[0003] In view of this, the utility model aims to provide a material air separation device with a compact structure, improved sorting effect and efficiency, and capable of meeting efficient production needs.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A material air selection device comprises a box body, an air suction pipe, an air suction fan and a material discharge pipe;

[0006] A feed port is provided on the top of the box body, and the right side of the box body extends outside the box body to form a suction pipe port with a diameter gradually decreasing from left to right, and the suction pipe is connected to the suction pipe port, and a suction fan is provided at the end of the suction pipe; the bottom wall of the box body is arranged obliquely downward from the right side of the box body to the left side wall, and the end of the bottom wall is connected to a right pipe wall arranged downward; a guide plate is formed in the lower section of the left side wall, which is arranged obliquely to the lower right, and a left pipe wall arranged downward is connected to the guide plate; the top of the right pipe wall is higher than the top of the left pipe wall, and the right pipe wall and the left pipe wall form the discharge pipe.

[0007] Furthermore, a connecting plate is provided at the top end of the left tube wall, and the connecting plate can drive the left tube wall to move along the guide plate. When the left tube wall moves, the width of the discharge pipe can be changed; a locking mechanism for locking the connecting plate is provided on the guide plate.

[0008] Furthermore, an air inlet is provided on the left side wall of the box body; and a damper for adjusting the size of the air inlet is provided at the air inlet.

[0009] Furthermore, a shaker is connected in series to the suction pipe; the shaker includes a cylinder, an inlet provided on one side of the cylinder, and an outlet pipe provided on the top of the cylinder; the cylinder includes a cylindrical portion, and a conical portion with a diameter gradually decreasing from top to bottom; the inlet is provided on one side of the cylindrical portion, and the inlet is connected to the suction pipe mouth, the outlet pipe is provided on the top of the cylindrical portion, and the outlet pipe is connected to the suction pipe; the bottom end of the cylindrical portion is connected to the top end of the conical portion, and a discharge port is provided at the bottom of the conical portion.

[0010] Furthermore, a vibration device is provided at the bottom of the bottom wall; the vibration device includes an eccentric rotor provided on the electric motor and the transmission shaft of the electric motor.

[0011] Furthermore, a feeding funnel is provided on the top of the box body, and the feeding funnel is connected to the feeding port.

[0012] Furthermore, a windproof discharger is provided between the feed hopper and the feed port, and the windproof discharger includes a shell and an impeller rotatably arranged in the shell; the material in the feed funnel can enter the shell, and the impeller can rotate with the material and fall into the box from the feed port.

[0013] Furthermore, a slide rail is provided on the top of the box body, a slider is slidably provided inside the slide rail, and a feed port is provided on the slider; the slider can drive the windproof discharger and the feed funnel to move along the slide rail; an accordion cover is provided between the slider and the slide rail, and the accordion cover can close the top of the box body.

[0014] Furthermore, an adjustment plate with an adjustable angle is hinged on the inner wall of the box, and the adjustment plate can be fixed in the box at a preset angle.

[0015] Furthermore, a partition wall is provided between the left tube wall and the right tube wall, and the partition wall can divide the discharge pipe into two parts, and the partition wall and the right tube wall form a secondary discharge pipe; the top of the partition wall is higher than the top of the left tube wall, and the top of the partition wall is lower than the top of the right tube wall; the bottom end of the right tube wall is hinged with a cover plate for sealing the secondary discharge pipe, and the cover plate is connected to a counterweight at one end away from the discharge pipe.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The material air separation device described in the utility model, by arranging the suction fan, allows the air flow to enter the box through the discharge duct to air separate the material, and discharges the light material through the suction pipe, thereby improving the sorting effect and sorting efficiency, and can meet the efficient production needs.

[0018] In addition, there is a certain drop between the left and right tube walls, which can make lighter impurities blown up by the airflow, while heavier materials are blocked by the right tube wall, thereby improving the sorting effect and facilitating the sorting of materials with similar weights. In addition, the connecting plate on the left tube wall can drive the left tube wall to move along the guide plate to adjust the width of the discharge pipe, thereby controlling the airflow speed.

[0019] At the same time, an air inlet is provided on the left wall of the box, and a damper is provided at the air inlet, which can adjust the size of the air inlet, thereby changing the air intake volume, thereby changing the air separation effect on the material. In addition, a windproof discharger is provided between the feed inlet and the feed hopper, which can quantitatively input materials into the box to avoid uneven input of materials and prevent airflow from entering through the feed inlet and affecting the sorting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the material air separation device described in an embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a specific implementation form of the material air separation device described in the embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of a specific implementation form of the material air separation device described in the embodiment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of a specific implementation form of the material air separation device described in the embodiment of the utility model;

[0025] Description of reference numerals:

[0026] 1. Box body; 2. Suction pipe; 3. Suction fan; 4. Discharge pipe; 5. Feed funnel; 6. Adjustment plate;

[0027] 11. Feed inlet; 12. Bottom wall; 13. Left side wall; 14. Right tube wall; 15. Guide plate; 16. Air inlet; 17. Air door;

[0028] 21. Suction pipe opening; 22. Cylinder; 23. Inlet; 24. Outlet pipe; 25. Discharge port;

[0029] 41. left tube wall; 42. connecting plate; 43. locking mechanism; 44. separating tube wall; 45. cover plate; 46. auxiliary discharge pipe;

[0030] 51. casing; 52. impeller;

[0031] 111. slide rail; 112. slider; 113. accordion cover;

[0032] 121. Electric motor; 122. Eccentric rotor. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0034] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0037] The present embodiment relates to a material air separation device for separating light materials from heavier materials in the material.

[0038] In terms of overall structure, combined Figure 1 As shown, the material air separation device of this embodiment includes a box body 1, an air suction pipe 2, a suction fan 3 and a discharge pipe 4.

[0039] Among them, the top of the box body 1 is provided with a feed port 11, the right side of the box body 1 extends outside the box body 1, forming a suction pipe port 21 with a diameter gradually reduced from left to right, and the suction pipe 2 is connected to the suction pipe port 21, and a suction fan 3 is provided at the end of the suction pipe 2. The bottom wall 12 of the box body 1 is arranged obliquely downward from the right side to the left side wall 13, and the end of the bottom wall 12 is provided with a right pipe wall 14 arranged downward. A guide plate 15 arranged obliquely to the lower right is formed at the bottom of the left side wall 13, and a left pipe wall 41 arranged downward is connected to the guide plate 15. The right pipe wall 14 and the left pipe wall 41 surround and form a discharge pipe 4.

[0040] As shown in the above structure, by setting the suction fan 3, the air flow enters the box body 1 through the discharge pipe 4 to air-sort the material, and the light material is discharged through the suction pipe 2, thereby improving the sorting effect and sorting efficiency, and can meet the efficient production needs.

[0041] Based on the above overall introduction, specifically, a frame is provided on the box body 1 of this embodiment, and when the device is in use, it is horizontally placed on the ground or installed on other related equipment through the frame. Unsorted materials enter the box body 1 through the feed inlet 11 for air separation and are discharged through the discharge pipe 4. At the same time, the right pipe wall 14 is a U-shaped structure, and the left pipe wall 41 and the right pipe wall 14 can enclose and form the discharge pipe 4.

[0042] It can be understood that when the material falls from the feed port 11 to the bottom wall 12 or the guide plate 15, the falling light material can be blown by the airflow and sucked into the suction pipe 2 and discharged through the suction fan 3. The heavier material is discharged from the discharge pipe because the gravity is greater than the lift of the airflow, thereby achieving effective separation of the light material.

[0043] When the material moves along the bottom wall 12 and the guide plate 15 toward the pipe mouth of the discharge pipe 4, since the top of the right pipe wall 15 is higher than the top of the left pipe wall 41, the left and right pipe walls can form a certain height difference, and the airflow rising from the discharge pipe 4 will be relatively weakened when it reaches the height difference between the left and right pipe walls. When the slightly heavier material that has not been completely sorted after entering the discharge pipe 4 is sucked back to the height difference between the left and right pipe walls, the slightly heavier material can fall back into the discharge pipe 4 and move downward due to the weakened airflow here and being blocked by the right pipe wall 14, thus avoiding being blown up into the suction pipe 2 by the airflow. However, the lighter material is more easily blown up by the airflow entering through the discharge pipe 4 and separated from the slightly heavier material. After that, the light material continues to be transported to the suction pipe 2 by the airflow and is finally discharged by the suction fan 3, thereby achieving effective separation of materials with little difference in weight.

[0044] Therefore, the material to be sorted undergoes two airflow separations in the material air separation device of this embodiment. Through the above-mentioned air separation process, the sorting effect and efficiency can be improved, and the setting of the angle between the bottom wall 12 and the guide plate 15 can be beneficial to the sorting of materials with closer weights to a certain extent.

[0045] In the specific implementation, the box body 1, the cover plate, the guide plate 15 and the feed pipe can preferably be made of stainless steel plates and welded, which can ensure the structural strength of the device and improve durability. At the same time, the suction fan 3 can preferably be a centrifugal fan, and can ensure that lightweight materials can be discharged through the inside of the fan. In addition, when the material is light, if the suction force of the suction fan 3 is large, the material will be sucked into the suction pipe 2. Therefore, the suction fan 3 can preferably be a variable frequency fan to adjust the wind force according to the actual working conditions.

[0046] As a preferred implementation form, a connecting plate 42 is provided at the top of the left tube wall 41 of this embodiment, and the connecting plate 42 can drive the left tube wall 41 to move along the guide plate 15. When the left tube wall 41 moves, the width of the discharge pipe 4 can be changed, and a locking mechanism 43 for locking the connecting plate 42 is provided on the guide plate 15. By moving the left tube wall 41 to change the width of the discharge pipe 4, the air intake volume and air flow velocity of the discharge pipe 4 are adjusted to adapt to materials of different weights, so as to improve the sorting effect and the efficiency of light material removal.

[0047] In specific implementation, the locking mechanism 43 may adopt a conventional locking mechanism 43 well known to those skilled in the art, for example, the locking mechanism 43 may preferably include a slot provided at the bottom of the guide plate 15, and a hand screw provided on the slot, by rotating the hand screw, the connecting plate 42 can be abutted against the guide plate 15, thereby locking the position of the left tube wall 41, or other conventional structures that can lock the position of the left tube wall 41. In addition, in this embodiment, the connecting plate 42 can also be arranged at the top of the right tube wall 14, so that the right tube wall 14 moves along the bottom wall 12, and the width of the discharge pipe 4 is changed, and correspondingly, the bottom wall 12 is provided with a locking mechanism 43 for fixing the connecting plate 42.

[0048] In this embodiment, the light materials blown by the airflow in the box 1 will enter the suction pipe 2. Therefore, in order to improve the suction and light material collection efficiency of the suction pipe 2, a suction pipe opening 21 with a diameter gradually reduced from left to right is connected between the suction pipe 2 and the box 1. The suction pipe opening 21 constitutes a transition between the box 1 and the suction pipe 2, so that the airflow carrying the light materials can smoothly enter the suction pipe 2 from the box 1. At the same time, the design of the gradually reduced diameter of the suction pipe opening 21 increases the air flow rate in the suction pipe 2, and further improves the discharge efficiency of the light materials. In specific implementation, the suction pipe opening 21 can be set in different directions outside the box 1. Preferably, the suction pipe opening 21 can extend outside the box 1 in a horizontal direction or extend obliquely upward to the outside of the box 1, so that the airflow in the box 1 can carry the light materials selected by the wind and discharge smoothly along the suction pipe opening 21.

[0049] As a preferred implementation form, an air inlet 16 is provided on the left side wall 13 of the box body 1 of this embodiment, and a damper 17 for adjusting the size of the air inlet 16 is provided at the air inlet 16. It can be understood that when the weight difference between the two materials is large, the airflow entering from the air inlet 16 can blow the light material into the air inlet pipe to improve the air selection effect.

[0050] At the same time, when the weight difference between the two materials is small and the weight of the two materials is light, the airflow entering from the air inlet 16 can easily blow all the two materials of different weights into the suction pipe 2. Therefore, a damper 17 is designed at the air inlet 16. The size of the air inlet 16 can be changed according to the actual situation of the material, so as to adjust to a more suitable airflow speed and air intake volume.

[0051] In a specific implementation, the damper 17 may adopt a conventional structure well known to those skilled in the art. For example, the damper 17 may preferably include a frame disposed at the air inlet 16, and a baffle rotatably disposed on the frame, wherein rotating the baffle can change the size of the air inlet 16, or a grid-shaped mesh opening is disposed at the air inlet 16, and a plug plate is disposed to adjust the size of the air inlet 16, or other structures are provided to be able to adjust the size of the air inlet 16.

[0052] It is understandable that when the airflow carrying light materials is discharged through the suction fan 3, the light materials will collide with the blades of the suction fan 3, eventually causing the service life of the suction fan 3 to decrease. Therefore, in order to increase the service life of the suction fan 3, as a preferred embodiment, Figure 2 As shown, the air suction pipe 2 of the present embodiment is connected in series with a Shakeron. It comprises a barrel 22, an inlet 23 arranged at one side of the barrel 22, and an outlet pipe 24 arranged at the top of the barrel 22.

[0053] The cylinder 22 includes a cylindrical portion and a conical portion with a gradually decreasing diameter from top to bottom. The inlet 23 is arranged on one side of the cylindrical portion, and the inlet 23 is connected to the air suction pipe port 21. The outlet pipe 24 is arranged on the top of the cylindrical portion, and the outlet pipe 24 is connected to the air suction pipe 2. The bottom end of the cylindrical portion is connected to the top end of the conical portion, and a discharge port 25 is arranged at the bottom of the conical portion, and a windproof discharger is arranged at the discharge port 25.

[0054] When the airflow carrying light materials enters the cylinder 22 of the Shakron, the airflow carrying light materials will rotate in the cylinder 22, and the light materials will be separated from the airflow by centrifugal force and captured on the inner wall of the cylinder 22. The light materials will fall to the discharge port 25 by gravity, and will be discharged through the wind-proof discharger at the discharge port 25. The airflow will be discharged through the outlet pipe 24 via the suction pipe 2 and the suction fan 3. Compared with the method of discharging light materials through the suction fan 3, this embodiment can separate the light materials in the airflow and collect them together, avoiding damage to the suction fan 3 by the light materials and increasing the service life of the suction fan 3.

[0055] As a preferred implementation form, a vibration device is provided at the bottom of the bottom wall 12 of this embodiment, and the vibration device includes an electric motor 121 and an eccentric rotor 122 arranged on the transmission shaft of the electric motor 121. When the electric motor 121 is started, it can drive the eccentric rotor 122 to rotate, and under the action of the eccentric rotor 122, the bottom wall 12 vibrates to disperse the incompletely sorted materials on the bottom wall 12, thereby improving the sorting effect of light and heavy materials.

[0056] It can be understood that the materials sorted by the device are mostly small bulk materials, so as a preferred implementation form, a feeding funnel 5 is provided on the top of the box body 1 of the present embodiment, and the feeding funnel 5 is connected to the feeding port 11 to facilitate adding materials to the box body 1. At the same time, it is also to avoid too much material being added to the box body 1 at one time or the amount of material added being uneven, resulting in reduced sorting effect.

[0057] At the same time, as a preferred implementation form, a windproof discharger is provided between the feed hopper 5 and the feed port 11, which can prevent the airflow from entering the box body 1 from the feed port 11 to a certain extent, thereby reducing the sorting effect. At the same time, the windproof discharger can also control the addition of a certain amount of material into the box body 1 each time.

[0058] Specifically, the windproof discharger includes a shell 51, an impeller 52 rotatably disposed in the shell 51, and the shell 51 is connected from top to bottom. When the material enters the shell 51, the material first enters between the two blades of the impeller 52, and drives the impeller 52 to rotate, and discharges the material between the two blades from the bottom of the shell 51 into the box 1.

[0059] It is understandable that when the impeller 52 rotates, the blades divide the material into multiple parts and input them into the box body 1 in sequence, so as to prevent too much material from entering the box body 1 at one time. At the same time, the speed of the impeller 52 rotation determines the speed of the material input into the box body 1. In addition, the windproof discharge device at the discharge port 25 can prevent the airflow from entering the cylinder body 22 from the discharge port 25 to a certain extent, so as to avoid the decline of the sorting effect.

[0060] In a specific implementation, the impeller 52 may preferably be driven by a motor, and the impeller 52 may be driven to rotate by the motor, or the impeller 52 may be driven to rotate by the gravity of the material, so that the material can be fed into the box body 1 at a certain speed.

[0061] In this embodiment, as a preferred implementation form, combined with Figure 3 As shown, a slide rail 111 is provided on the top of the box body 1 of this embodiment, a slider 112 is slidably provided in the slide rail 111, and a feed port 11 is provided on the slider 112. The slider 112 can drive the windproof discharger and the feed hopper 5 to move along the slide rail 111. An accordion cover 113 is provided between the slider 112 and the slide rail 111, and the accordion cover 113 can close the top of the box body 1.

[0062] Thus, the feed funnel 5 and the windproof feeder can move along the slide rail 111 to change the position of the material from the suction pipe 2 when entering the box body 1 and the position where the material falls on the bottom wall 12 or the guide plate 15, and the accordion cover 113 can block the top of the box body 1 to a certain extent, and even if there is a certain amount of air leakage, it will not have a great impact on the air selection in the box body 1.

[0063] It is understandable that when the material is light and the material is close to the suction pipe 2, the heavier and lighter materials are easily sucked into the suction pipe 2, so that the materials cannot be effectively air-selected. In this case, the feed hopper 5 and the wind-shielded discharger are moved to the left, and the wind-shielded discharger is used for air-selection through the drop between the guide plate 15 and the bottom wall 12. When the material is heavy and the weight difference between the light material and the heavier material is large, the feed hopper 5 and the wind-shielded discharger can be moved to the right, and the material is brought close to the suction pipe 2, so as to use a higher air flow speed for air-selection, so as to improve the material sorting effect to a certain extent.

[0064] As a preferred implementation form, Figure 4As shown, an adjustable angle adjustment plate 6 is hinged on the inner wall of the box body 1 of this embodiment, and the adjustment plate 6 can be fixed in the box body 1 at a preset angle. Due to the setting of the adjustment plate 6, adjusting the angle of the adjustment plate 6 can change the path of the material falling. According to the different materials, adjusting the angle of the adjustment plate 6 can change the distance between the material and the suction pipe port 21, further improving the air selection effect. In the specific implementation, a fixing pin is provided on one side of the adjustment plate 6 and extends out of the box body 1. The end of the fixing pin is connected to a locking mechanism. The locking mechanism can be a hand-tightening nut screwed on the end plate of the fixing pin. The hand-tightening nut can clamp the side wall of the box body 1 between the hand-tightening nut and the adjustment plate 6, thereby fixing the angle of the adjustment plate 6.

[0065] In addition, continue as Figure 4 As shown, as a preferred embodiment, a partition wall 44 is provided between the left tube wall 41 and the right tube wall 14, and the partition wall 44 can divide the discharge pipe 4 into two parts, and the partition wall 44 and the right tube wall 14 enclose a secondary discharge pipe 46. The top of the partition wall 44 is higher than the top of the left tube wall 41, and the top of the partition wall 44 is lower than the top of the right tube wall 14. A cover plate 45 for blocking the secondary discharge pipe 46 is hinged at the bottom end of the right tube wall 14, and a counterweight is connected to the end of the cover plate 45 away from the discharge pipe 4. When part of the material in the discharge pipe 4 rises with the air flow, the heavier material will fall into the auxiliary discharge pipe 46 under the action of gravity when passing through the upper end of the partition pipe wall 44, because there is no rising airflow at the auxiliary discharge pipe 46, so that the slightly heavier material in the blown-up light material can be separated again, thereby improving the air selection effect. When the slightly heavier material gathers to a certain amount in the auxiliary discharge pipe 46, it will press open the cover plate 45 and be discharged.

[0066] The material air separation device described in this embodiment, through the setting of the suction fan 3, allows the air flow to enter the box 1 through the discharge pipe 4 to air separate the material, and discharge the light material through the suction pipe 2, thereby improving the sorting effect and sorting efficiency, and can meet the efficient production needs.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A material air separation device, characterized in that: It comprises a box body (1), an air suction pipe (2), a suction fan (3) and a discharge pipe (4); The top of the box body (1) is provided with a feed port (11), the right side of the box body (1) extends outside the box body (1) to form an air suction pipe port (21) with a diameter gradually decreasing from left to right, and the air suction pipe (2) is connected to the air suction pipe port (21), and a suction fan (3) is provided at the end of the air suction pipe (2); The bottom wall (12) of the box body (1) is arranged obliquely downward from the right side of the box body (1) to the left side wall (13), and the end of the bottom wall (12) is connected to a right tube wall (14) arranged downward; The lower section of the left side wall (13) is formed with a guide plate (15) arranged obliquely toward the lower right, and the guide plate (15) is connected to a left tube wall (41) arranged downward; The top end of the right tube wall (14) is higher than the top end of the left tube wall (41), and the right tube wall (14) and the left tube wall (41) are constructed to form the discharge pipe (4).

2. The material air separation device according to claim 1 is characterized in that: A connecting plate (42) is provided at the top end of the left tube wall (41), and the connecting plate (42) can drive the left tube wall (41) to move along the guide plate (15), and when the left tube wall (41) moves, the width of the discharge pipe (4) can be changed; The guide plate (15) is provided with a locking mechanism (43) for locking the connecting plate (42).

3. The material air separation device according to claim 1 is characterized in that: An air inlet (16) is provided on the left side wall (13) of the box body (1); The air inlet (16) is provided with an air door (17) for adjusting the size of the air inlet (16).

4. The material air separation device according to claim 1, characterized in that: The air suction pipe (2) is connected in series with a Shakron; The Shakron comprises a cylinder (22), an inlet (23) arranged at one side of the cylinder (22), and an outlet pipe (24) arranged at the top of the cylinder (22); The cylinder (22) comprises a cylindrical portion and a conical portion whose diameter gradually decreases from top to bottom; The inlet (23) is arranged at one side of the cylindrical portion, and the inlet (23) is connected to the air suction pipe opening (21); the outlet pipe (24) is arranged at the top of the cylindrical portion, and the outlet pipe (24) is connected to the air suction pipe (2); The bottom end of the cylindrical portion is connected to the top end of the conical portion, and a discharge port (25) is provided at the bottom of the conical portion.

5. The material air separation device according to claim 1, characterized in that: A vibration device is provided at the bottom of the bottom wall (12); The vibration device comprises an eccentric rotor (122) arranged on an electric motor (121) and on a transmission shaft of the electric motor (121).

6. The material air separation device according to any one of claims 1 to 5, characterized in that: A feeding funnel (5) is provided on the top of the box body (1), and the feeding funnel (5) is connected to the feeding port (11).

7. The material air separation device according to claim 6, characterized in that: A windproof discharger is provided between the feed hopper (5) and the feed port (11), and the windproof discharger comprises a shell (51) and an impeller (52) rotatably provided in the shell (51); The material in the feed hopper (5) can enter the shell (51), and the impeller (52) can carry the material to rotate and fall into the box (1) through the feed port (11).

8. The material air separation device according to claim 7, characterized in that: A slide rail (111) is provided on the top of the box body (1), a slider is slidably provided inside the slide rail (111), and a feed port (112) is provided on the slider (112); The slide block (112) can drive the windproof discharger and the feeding hopper (5) to move along the slide rail (111); An accordion cover (113) is provided between the sliding block (112) and the sliding rail (111), and the accordion cover (113) is capable of closing the top of the box body (1).

9. The material air separation device according to claim 6, characterized in that: An angle-adjustable adjustment plate (6) is hingedly connected to the inner wall of the box body (1); the adjustment plate (6) can be fixed in the box body (1) at a preset angle.

10. The material air separation device according to claim 1, characterized in that: A partition wall (44) is provided between the left tube wall (41) and the right tube wall (14), the partition wall (44) being capable of dividing the discharge pipe (4) into two parts, and the partition wall and the right tube wall enclose a secondary discharge pipe (46); The top end of the partition tube wall (44) is higher than the top end of the left tube wall (41), and the top end of the partition tube wall (44) is lower than the top end of the right tube wall (14); A cover plate (45) for sealing the auxiliary discharge pipe (46) is hingedly connected to the bottom end of the right pipe wall (14), and a counterweight is connected to one end of the cover plate (45) away from the discharge pipe (4).

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