Material impurity removal device

Abstract

The utility model provides a material impurity removal device. The material impurity removing device comprises a base, a box body (2), a material barrel (3), a rotating assembly (4) and a material blowing assembly (5), the box body (2) is fixedly arranged on the base, the material barrel (3) is rotatably arranged in the box body (2), the rotating assembly (4) is arranged on the box body (2) in a penetrating mode and is in driving connection with the material barrel (3) so as to drive the material barrel (3) to rotate relative to the box body (2), and the material blowing assembly (5) comprises a ventilation pipe (51) and a fan. One end of the ventilation pipe (51) is connected with the ventilation opening (21) in the box body (2), and the other end of the ventilation pipe (51) is connected with an air outlet of the fan. According to the material impurity removing device, fine impurity particles clamped in the filtering holes can be blown out, and the filtering holes are prevented from being blocked, so that the impurity separation efficiency is improved, the manual cleaning frequency is reduced, and the production cost is reduced.

Description

Technical Field

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

[0002] The production process of fertilizers usually requires the extraction of corresponding elements from ores. For example, the potassium element in potash fertilizer is extracted from potash ore. The ore materials used to extract the corresponding elements are often mixed with impurity particles of various sizes, such as quartz sand and other mineral components. The presence of these impurities not only reduces the product quality and purity of the fertilizer, but may also clog the material conveying system and impurity removal equipment during the production process, thereby affecting production efficiency and safety. Therefore, it is necessary to use material impurity removal equipment to screen the ore materials required for fertilizer production.

[0003] Traditional material cleaning devices often use vibrating screens, drum screens, and other impurity removal devices to remove these impurities. However, when using vibrating screens, drum screens, and other impurity removal devices to screen ore materials, fine impurity particles can easily get stuck in the filter holes, causing clogging. This requires frequent manual intervention to clean the material cleaning device, resulting in reduced impurity separation efficiency, increased production costs, and increased operational complexity. Utility Model Content

[0004] The main purpose of the utility model is to provide a material impurity removal device, which can blow out fine impurity particles stuck in the filter holes to avoid clogging of the filter holes, thereby improving the impurity separation efficiency, reducing the frequency of manual cleaning, and thus reducing production costs.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a material impurity removal device is provided, including a base, a box body, a barrel, a rotating assembly and a blowing assembly, the box body is arranged on the base, the rotating assembly is passed through the box body, the barrel is arranged in the box body, the barrel is connected to the rotating assembly, and the blowing assembly includes a ventilation pipe and a fan, one end of the ventilation pipe is connected to the vent on the box body, and the other end is connected to the air outlet of the fan.

[0006] Furthermore, an air separation hood is provided in the box body, and the air separation hood cover is provided on the ventilation port. The air separation hood divides the box body into an air separation space inside the air separation hood and a debris removal space outside the air separation hood. The ventilation pipe is connected to the air separation space, and an exhaust port is provided on the air separation hood, which connects the air separation space and the debris removal space.

[0007] Furthermore, the length of the air distribution hood is greater than or equal to the length of the barrel, and the width of the air distribution hood is greater than or equal to the diameter of the barrel; and / or, the plurality of air outlets are evenly distributed on the air distribution hood.

[0008] Furthermore, the rotating assembly includes a driving structure and a supporting structure. The driving structure is passed through the box body, and the supporting structure is installed at one end of the box body away from the driving structure. One end of the barrel is connected to the driving structure, and the other end is connected to the supporting structure.

[0009] Furthermore, a first protrusion is provided at one end of the barrel connected to the driving structure, the driving structure includes a motor, a transmission part and a first connecting member, the first connecting member is provided with an internal thread and an external thread, the first protrusion is threadedly connected to the first connecting member, one end of the transmission part is threadedly connected to the first connecting member, and the other end is connected to the motor drive.

[0010] Furthermore, a second protrusion is provided at one end of the barrel connected to the supporting structure. The supporting structure includes a bearing, a turntable and a supporting member. The bearing is provided on the box body. The turntable is rotatably connected to the bearing. The supporting member is provided on the turntable. The supporting member is detachably connected to the second protrusion.

[0011] Furthermore, the barrel is provided with a feed port and a material cover, and the material cover is provided on the feed port.

[0012] Furthermore, the barrel is provided with filter holes, which include a first filter hole and a second filter hole, and the aperture of the first filter hole is larger than the aperture of the second filter hole.

[0013] Furthermore, the bottom of the box body is an inclined surface, and a discharge port is provided at the lower end of the inclined surface.

[0014] Furthermore, the box body includes a first box door and a second box door, the first box door is arranged on the top of the box body, and the second box door is arranged on a side of the box body away from the blowing assembly.

[0015] Furthermore, the base includes a bottom plate and side plates, the side plates are arranged at both ends of the bottom plate, and second connecting members are also provided at both ends of the box body, and the second connecting members are connected to the side plates.

[0016] According to the technical solution of the present invention, the base serves as the foundation of the entire device, supporting and fixing the various components installed on the base; the box is used to accommodate the barrel and isolate the barrel from the outside world, confining the fine particles of impurities separated during the impurity removal process to the limited space in the box, preventing impurities such as dust and particulate matter from diffusing into the external environment and causing pollution; the barrel is the main working area for material impurity removal. After the material is put into the barrel, the barrel is rotated, and the material and impurities are separated through the filter holes on the barrel; the rotating assembly is used to support and fix the barrel and provide a driving force for the rotation of the barrel, thereby ensuring that the barrel can rotate relative to the box in the box; the blowing assembly generates a strong airflow through the fan, and the airflow is transported into the box through the ventilation pipe to clean the filter holes on the barrel and blow out the fine impurity particles stuck in the filter holes; the material impurity removal device proposed by the present invention can blow out the fine impurity particles stuck in the filter holes by setting the blowing assembly, avoiding clogging of the filter holes on the barrel, thereby improving the impurity separation efficiency, reducing the frequency of manual cleaning, and thus reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present invention are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 The following is a schematic diagram showing the overall structure of a material impurity removal device according to an embodiment of the present invention;

[0019] Figure 2 A schematic structural diagram of a barrel of a material impurity removal device according to an embodiment of the present invention is shown;

[0020] Figure 3 Another structural schematic diagram of a barrel of a material impurity removal device according to an embodiment of the present invention is shown;

[0021] Figure 4 A schematic structural diagram showing a first connecting member of a material impurity removal device according to an embodiment of the present invention; and

[0022] Figure 5 The present invention shows a schematic structural diagram of a rotating assembly and a blowing assembly of a material impurity removal device according to an embodiment of the present invention.

[0023] The above drawings include the following reference numerals:

[0024] 11. Bottom plate; 12. Side plate; 2. Box body; 21. Ventilation port; 22. First box door; 23. Second box door; 24. Inclined surface; 25. Second connecting piece; 3. Barrel; 31. First protrusion; 32. Second protrusion; 33. Filter hole; 331. First filter hole; 332. Second filter hole; 34. Feed port; 35. Material cover; 4. Rotating assembly; 41. Driving structure; 411. Motor; 412. Transmission part; 413. First connecting piece; 414. Knob; 42. Supporting structure; 421. Bearing; 422. Turntable; 423. Supporting piece; 5. Blowing assembly; 51. Ventilation duct; 52. Air distributor; 53. Exhaust port; 6. Mounting base; 7. Support plate. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] See also Figures 1 to 5 As shown, the utility model provides a material impurity removing device, including a base, a box body 2, a barrel 3, a rotating assembly 4 and a blowing assembly 5. The box body 2 is arranged on the base, the rotating assembly 4 is passed through the box body 2, the barrel 3 is arranged in the box body 2, the barrel 3 is connected to the rotating assembly 4, and the blowing assembly 5 includes a ventilation pipe 51 and a fan. One end of the ventilation pipe 51 is connected to the vent 21 on the box body 2, and the other end is connected to the air outlet of the fan.

[0027] In the above technical solution, the base serves as the foundation of the entire device, supporting and fixing the various components installed on the base; the box body 2 is used to accommodate the barrel 3 and isolate the barrel 3 from the outside world, limiting the fine particle impurities separated during the impurity removal process to the limited space inside the box body 2, avoiding impurities such as dust and particulate matter from diffusing into the external environment and causing pollution; the barrel 3 is the main working area for material impurity removal, and after the material is put into the barrel 3, the barrel 3 is rotated to separate the material and impurities through the filter holes on the barrel 3; the rotating component 4 is used to support and fix the material The material removing device proposed by the present invention can blow out the fine impurity particles stuck in the filter holes by setting the blowing component 5, thereby avoiding clogging of the filter holes on the material barrel 3, thereby improving the impurity separation efficiency, reducing the frequency of manual cleaning, and thus reducing production costs.

[0028] In one embodiment, an air separation hood 52 is provided in the box body 2, and the air separation hood 52 is covered on the ventilation port 21. The air separation hood 52 divides the box body 2 into an air separation space inside the air separation hood 52 and a debris removal space outside the air separation hood 52. The ventilation pipe 51 is connected to the air separation space, and an exhaust port 53 is provided on the air separation hood 52. The exhaust port 53 connects the air separation space and the debris removal space.

[0029] In the above technical solution, the air distribution hood 52 is mainly used to evenly distribute the airflow delivered by the vent 21 and then blow it into the impurity removal space, ensuring that the wind can blow evenly to the entire barrel 3, avoiding excessive concentration of wind that causes impurity particles in the filter holes in certain areas to be unable to be blown out; the function of the exhaust port 53 is to guide the wind in the air distribution space to the barrel, so that the airflow can blow toward the barrel 3, thereby improving the cleaning efficiency of the filter holes.

[0030] In one embodiment, the length of the air dividing hood 52 is greater than or equal to the length of the barrel 3 , and the width of the air dividing hood 52 is greater than or equal to the diameter of the barrel 3 .

[0031] In the above technical solution, the length of the air dividing hood 52 is greater than or equal to the length of the barrel 3, and the width of the air dividing hood 52 is greater than or equal to the diameter of the barrel 3, so that the wind discharged from the exhaust port 53 on the air dividing hood 52 can be blown to the entire barrel 3, avoiding the phenomenon of insufficient wind force in some areas of the barrel 3, and ensuring the uniformity and efficiency of the removal of impurity particles.

[0032] In one embodiment, a plurality of air outlets 53 are evenly distributed on the air distribution cover 52 .

[0033] In the above technical solution, the exhaust port 53 can be a plurality of small holes or slits. By evenly distributing the plurality of exhaust ports 53 on the air distribution hood 52, the wind can be evenly blown to the entire barrel 3, further improving the removal efficiency of impurity particles.

[0034] In one embodiment, the rotating assembly 4 includes a driving structure 41 and a supporting structure 42. The driving structure 41 is passed through the box body 2, and the supporting structure 42 is installed at one end of the box body 2 away from the driving structure 41. One end of the barrel 3 is connected to the driving structure 41, and the other end is connected to the supporting structure 42.

[0035] In the above technical solution, the barrel 3 is mounted in the box body 2 through the driving structure 41 and the supporting structure 42, wherein the driving structure 41 is mainly used to drive the barrel 3 to rotate relative to the box body 2 in the box body 2, and the supporting structure 42 is mainly used to support the barrel 3 at the end away from the driving structure 41, and to limit the barrel 3 axially and circumferentially to prevent the barrel 3 from falling out during the rotation and impurity removal process.

[0036] In one embodiment, a first protrusion 31 is provided at one end of the barrel 3 connected to the driving structure 41. The driving structure 41 includes a motor 411, a transmission part 412 and a first connecting member 413. The first connecting member 413 is provided with an internal thread and an external thread. The first protrusion 31 is threadedly connected to the first connecting member 413. One end of the transmission part 412 is threadedly connected to the first connecting member 413, and the other end is drive-connected to the motor 411.

[0037] In the above technical solution, an internal thread is provided in the first protrusion 31, and the external thread on the first connecting member 413 cooperates with the internal thread of the first protrusion 31 to realize the connection between the first connecting member 413 and the first protrusion 31. An internal thread is also provided in the first connecting member 413, and the internal thread on the first connecting member 413 cooperates with the external thread at one end of the transmission part 412 to realize the connection between the first connecting member 413 and the transmission part 412. The end of the transmission part 412 away from the first connecting member 413 is driven and connected to the motor 411, so that the motor 411 drives the transmission part 412 to rotate, thereby driving the barrel 3 to rotate.

[0038] In one embodiment, a second protrusion 32 is provided at one end of the barrel 3 connected to the supporting structure 42. The supporting structure 42 includes a bearing 421, a turntable 422 and a supporting member 423. The bearing 421 is provided on the box body 2. The turntable 422 is rotatably connected to the bearing 421. The supporting member 423 is provided on the turntable 422. The supporting member 423 is detachably connected to the second protrusion 32.

[0039] In the above technical solution, the second protrusion 32 is arranged at one end of the barrel 3, and its function is to ensure that the barrel 3 can be connected to the supporting member 423 on the supporting structure 42; the bearing 421 is fixed on the box body 2, and its function is to connect the turntable 422 and the supporting member 423 to the box body 2 and support the rotation of the turntable 422, reduce the friction during the rotation process, and ensure the smoothness and stability of the rotation of the turntable 422; the turntable 422 is used to ensure that the supporting member 423 can rotate together with the barrel 3; the function of the supporting member 423 is to support and fix the barrel 3 so that the barrel 3 will not fall out in the axial and circumferential directions during the rotation process.

[0040] In one embodiment, the supporting member 423 can be a clamp, a slot or other structure that can be detachably connected to the second protrusion 32. On the one hand, it can fix the barrel 3 during its rotation to ensure its rotation stability. On the other hand, it is convenient to disassemble the barrel 3 for unloading or cleaning.

[0041] In one embodiment, the supporting member 423 and the second protrusion 32 are connected together by bolts to achieve detachable fixation of the supporting member 423 and the second protrusion 32 .

[0042] In one embodiment, the barrel 3 is further provided with a feed port 34 and a cover 35 , and the cover 35 is covered on the feed port 34 .

[0043] In the above technical solution, materials are put into or taken out of the barrel 3 through the feed port 34, and the material cover 35 is mainly used to close the feed port 34 to prevent the materials from being thrown out from the feed port 34 during the process of rotating the barrel 3 to remove impurities.

[0044] In one embodiment, the barrel 3 is further provided with filter holes 33 , which include a first filter hole 331 and a second filter hole 332 . The aperture of the first filter hole 331 is larger than that of the second filter hole 332 .

[0045] In the above technical solution, large particles of impurities can only be discharged through the first filter hole 331, while small particles of impurities can be discharged through both the first filter hole 331 and the second filter hole 332. By cooperating with the filter holes of different apertures, the impurity particles of different sizes can be classified and discharged to a certain extent, which can significantly improve the impurity removal efficiency. In addition, the small-aperture filter holes are more easily clogged by impurity particles than the large-aperture filter holes. When the second filter hole 332 with a smaller aperture is clogged, the small particles of impurities can still be discharged through the first filter hole 331 with a larger aperture, thereby reducing the impact of the filter hole blockage on the impurity removal efficiency.

[0046] In one embodiment, an assumed plane passes through the central axis of rotation of the barrel 3 and is perpendicular to the central axis of the feed port 34. The assumed plane divides the barrel 3 into a first half area close to the feed port 34 and a second half area away from the feed port 34. The first filter hole 331 is set in the first half area of ​​the barrel 3, and the second filter hole 332 is set in the second half area of ​​the barrel 3.

[0047] In one embodiment, the bottom of the box body 2 is an inclined surface 24 , and a discharge port is provided at the lower end of the inclined surface 24 .

[0048] In the above technical solution, during the process of rotating the barrel 3 to remove impurities, particulate impurities are discharged from the barrel 3 through the filter holes 33 on the barrel 3 and fall to the bottom of the box body 2, and then slide out of the box body 2 through the discharge port under the action of the inclined surface 24.

[0049] In one embodiment, the box body 2 includes a first box door 22 and a second box door 23 . The first box door 22 is arranged on the top of the box body 2 , and the second box door 23 is arranged on the side of the box body 2 .

[0050] In the above technical solution, the provision of the first box door 22 and the second box door 23 helps to maintain the dustproofness and sealing of the interior of the box body 2. When the impurity removal device is working, closing the first box door 22 and the second box door 23 ensures that the dust inside the box body 2 will not leak to the outside of the box body 2 to pollute the air, while reducing the leakage of the internal airflow, thereby improving the cleaning effect of the blowing assembly 5 on the filter holes 33 on the surface of the barrel 3; the first box door 22 provided on the top of the box body 2 facilitates the addition of materials into the barrel 3, and the second box door 23 provided on the side of the box body 2 facilitates the installation and disassembly of the barrel 3.

[0051] In one embodiment, the blowing assembly 5 is arranged on the side of the box body 2, and the second box door 23 is arranged on the side of the box body 2 away from the blowing assembly 5. By arranging the blowing assembly 5 and the second box door 23 opposite to each other, interference between the second box door 23 and the blowing assembly 5 is avoided when they are arranged on the same side.

[0052] In one embodiment, the base includes a bottom plate 11 and side plates 12 . The side plates 12 are provided at both ends of the bottom plate 11 . Second connecting members 25 are further provided at both ends of the box body 2 . The second connecting members 25 are connected to the side plates 12 .

[0053] In the above technical solution, the bottom plate 11 serves as the installation base, and the side plates 12 are arranged at both ends of the bottom plate 11. The second connecting parts 25 at both ends of the box body 2 are fixedly connected to the side plates 12. On the one hand, the box body 2 is at a certain height from the ground, which is convenient for the installation and blanking of the barrel 3. On the other hand, the box body 2 is fixed to prevent the box body 2 from rotating under the action of the driving structure 41.

[0054] In one embodiment, a mounting seat 6 is provided on the base, and the ventilation pipe 51 is placed on the mounting seat 6 .

[0055] In the above technical solution, the mounting seat 6 is mainly used to support the ventilation pipe 51 to prevent the ventilation pipe 51 from being bent and damaged under the action of gravity.

[0056] In one embodiment, the supporting member 423 is an arc-shaped supporting plate, which can have a larger contact area with the second protrusion 32, thereby improving the fixing strength between the supporting member 423 and the second protrusion 32, reducing the wear of the supporting member 423 on the second protrusion 32, and thus improving the rotational stability and life of the barrel 3.

[0057] In one embodiment, the supporting plate 7 is disposed on the side plate 12 , and the motor 411 is disposed on the supporting plate 7 .

[0058] In the above technical solution, the support plate 7 is mainly used to support and fix the motor 411 to prevent the motor 411 from being displaced or falling, thereby improving the stability of the driving structure 41.

[0059] In one embodiment, a knob 414 is provided on the first connecting member 413, and the outer edge of the knob 414 can be configured to be serrated or wavy. The knob 414 is primarily configured to facilitate manual rotation of the first connecting member 413, thereby improving the convenience of installing and removing the barrel 3. The serrated or wavy outer edge of the knob 414 is easy to grasp, further improving the convenience of manually rotating the first connecting member 413.

[0060] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: the base serves as the basis of the entire device, supporting and fixing the various components installed on the base; the box body 2 is used to accommodate the barrel 3 and isolate the barrel 3 from the outside world, limiting the fine particle impurities separated during the impurity removal process to the limited space inside the box body 2, avoiding impurities such as dust and particulate matter from diffusing into the external environment and causing pollution; the barrel 3 is the main working area for material impurity removal, and after the material is put into the barrel 3, the barrel 3 is rotated to separate the material and impurities through the filter holes on the barrel 3; the rotation The moving component 4 is used to support and fix the barrel 3 and provide driving force for the rotation of the barrel 3, thereby ensuring that the barrel 3 can rotate relative to the box body 2 in the box body 2; the blowing component 5 generates a strong airflow through the fan, and the airflow is transported to the box body 2 through the ventilation pipe 51 to clean the filter holes on the barrel 3 and blow out the fine impurity particles stuck in the filter holes; the material impurity removal device proposed in the utility model can blow out the fine impurity particles stuck in the filter holes by setting the blowing component 5, thereby avoiding clogging of the filter holes on the barrel 3, thereby improving the impurity separation efficiency, reducing the frequency of manual cleaning, and thus reducing production costs.

[0061] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0062] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A material impurity removal device, characterized in that: The invention comprises a base, a box (2), a barrel (3), a rotating assembly (4) and a blowing assembly (5), wherein the box (2) is fixedly arranged on the base, the barrel (3) is rotatably arranged in the box (2), the rotating assembly (4) is passed through the box (2) and is drivingly connected to the barrel (3) to drive the barrel (3) to rotate relative to the box (2), and the blowing assembly (5) comprises a ventilation pipe (51) and a fan, one end of the ventilation pipe (51) is connected to the ventilation port (21) on the box (2), and the other end is connected to the air outlet of the fan.

2. The material impurity removal device according to claim 1, characterized in that: An air separation hood (52) is provided in the box body (2), and the air separation hood (52) is covered on the ventilation port (21). The air separation hood (52) divides the box body (2) into an air separation space inside the air separation hood (52) and a debris removal space outside the air separation hood (52). The ventilation pipe (51) is connected to the air separation space. An air outlet (53) is provided on the air separation hood (52), and the air outlet (53) is connected to the air separation space and the debris removal space.

3. The material impurity removal device according to claim 2, characterized in that: The length of the air distribution hood (52) is greater than or equal to the length of the barrel (3), and the width of the air distribution hood (52) is greater than or equal to the diameter of the barrel (3); and / or, the plurality of air outlets (53) are evenly arranged on the air distribution hood (52).

4. The material impurity removal device according to claim 1, characterized in that: The rotating assembly (4) comprises a driving structure (41) and a supporting structure (42), wherein the driving structure (41) is passed through the box body (2), and the supporting structure (42) is installed at one end of the box body (2) away from the driving structure (41), and one end of the barrel (3) is connected to the driving structure (41), and the other end is connected to the supporting structure (42).

5. The material impurity removal device according to claim 4, characterized in that: A first protrusion (31) is provided at one end of the barrel (3) connected to the driving structure (41), and the driving structure (41) includes a motor (411), a transmission part (412) and a first connecting member (413), wherein the first connecting member (413) is provided with an internal thread and an external thread, the first protrusion (31) is threadedly connected to the first connecting member (413), one end of the transmission part (412) is threadedly connected to the first connecting member (413), and the other end is drive-connected to the motor (411).

6. The material impurity removal device according to claim 4, characterized in that: A second protrusion (32) is provided at one end of the barrel (3) connected to the supporting structure (42); the supporting structure (42) comprises a bearing (421), a turntable (422) and a supporting member (423); the bearing (421) is provided on the box body (2); the turntable (422) is rotatably connected to the bearing (421); the supporting member (423) is provided on the turntable (422); and the supporting member (423) is detachably connected to the second protrusion (32).

7. The material impurity removal device according to claim 1, characterized in that: The barrel (3) is also provided with a feed port (34) and a material cover (35), and the material cover (35) is covered on the feed port (34).

8. The material impurity removal device according to claim 7, characterized in that: The barrel (3) is further provided with filter holes (33), and the filter holes (33) include a first filter hole (331) and a second filter hole (332), and the aperture of the first filter hole (331) is larger than the aperture of the second filter hole (332).

9. The material impurity removal device according to claim 1, characterized in that: The bottom of the box body (2) is a slope (24), and a discharge port is provided at the lower end of the slope (24).

10. The material impurity removal device according to claim 1, characterized in that: The box body (2) comprises a first box door (22) and a second box door (23), wherein the first box door (22) is arranged at the top of the box body (2), and the second box door (23) is arranged at a side of the box body (2) away from the blowing assembly (5).

11. The material impurity removal device according to claim 1, characterized in that: The base comprises a bottom plate (11) and side plates (12), wherein the side plates (12) are arranged at both ends of the bottom plate (11), and second connecting members (25) are further arranged at both ends of the box body (2), wherein the second connecting member (25) is connected to the side plates (12).

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