Leveling device for a tramp iron protection device on a belt conveyor

Abstract

The utility model provides a kind of flat device of protecting de-ironer on belt conveyor, including portal, plow head and guide plate;Portal is installed on belt conveyor, and is located in the front direction of de-ironer;Plow head is installed on portal, and distance is left between plow head and the surface of conveying belt of belt conveyor;Guide plate is installed on portal, and is located at the both sides of conveying belt, below plow head;Wherein, the distance between plow head bottom end and the surface of conveying belt is not more than the distance between de-ironer bottom end and the surface of conveying belt.The utility model plows the material of excess height by plow head, completely eliminates the phenomenon that large material flow collides disc de-ironer, to solve the technical problem that de-ironer is damaged by direct collision when conveying belt sporadic large flow or block material accumulation, strengthen the continuity of belt conveyor conveying, guarantee the safe and stable operation of conveying system, reduce conveyor maintenance cost, save spare parts cost, and reduce the labor intensity of staff.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, and in particular to a leveling device for protecting the iron remover on a belt conveyor. Background Technology

[0002] In continuous conveying systems for bulk materials, electromagnetic magnetic separators are widely used in industries such as mining, chemical, and food as impurity separation devices. They adsorb ferromagnetic impurities from materials using a high-intensity magnetic field, offering advantages such as deep magnetic penetration, strong attraction, and good environmental adaptability. This effectively protects downstream equipment (such as grinders and crushers) from iron wear and enables efficient recovery of magnetic materials.

[0003] However, in actual operation of belt conveyors, the magnetic separator needs to be close to the conveyor belt to ensure magnetic removal efficiency, but its position is exposed directly above the material flow. When the conveyor belt experiences occasional large flow or lumpy material accumulates (such as a sudden increase in coal flow), the magnetic separator is easily subjected to direct impact, leading to equipment displacement, detachment, or even structural damage.

[0004] Failure of the magnetic separator can paralyze the conveying system, further threatening the stable operation of core production units such as gasifiers / boilers, and increasing maintenance costs and spare parts wear. Therefore, there is an urgent need for a proactive protection mechanism that can actively adjust the material flow pattern before the material comes into contact with the magnetic separator. Utility Model Content

[0005] This utility model provides a material leveling device for protecting the magnetic separator on a belt conveyor, in order to solve the technical problem that the magnetic separator is easily damaged by direct impact when there is occasional large flow or accumulation of lumpy materials on the conveyor belt.

[0006] This utility model provides a leveling device for protecting the iron separator on a belt conveyor, including a gantry, a plow, and a guide plate; the gantry is installed on the belt conveyor and is located in the front direction of the iron separator; the plow is installed on the gantry and is spaced apart from the surface of the conveyor belt; the guide plate is installed on the gantry and is located on both sides of the conveyor belt and below the plow; wherein, the distance between the bottom end of the plow and the surface of the conveyor belt is not greater than the distance between the bottom end of the iron separator and the surface of the conveyor belt.

[0007] In one embodiment of this utility model, the distance between the bottom of the plowshare and the surface of the conveyor belt is less than the distance between the bottom of the iron remover and the surface of the conveyor belt.

[0008] In one embodiment of this utility model, the width of the plow head gradually increases from small to large along the material feeding direction on the conveyor belt.

[0009] In one embodiment of the present invention, the top of the plowshare is connected to the gantry, and the plowshare includes two plow blades arranged at an angle.

[0010] In one embodiment of this utility model, two gantry frames are spaced apart in the material feeding direction of the conveyor belt.

[0011] In one embodiment of the present invention, guide plates are provided through both sides of the gantry, and both sides of the gantry are connected to the frame of the conveyor belt.

[0012] In one embodiment of the present invention, the spacing inside the gantry is greater than the width of the conveyor belt, and the spacing inside the gantry is equal to the spacing between the frames on both sides of the conveyor belt.

[0013] In one embodiment of the present invention, in the width direction of the conveyor belt, the size of the plow head is larger than the size of the conveyor belt, and the outer contour of the guide plate protrudes beyond the outer contour of the plow head.

[0014] In one embodiment of this utility model, the size of the guide plate is larger than the size of the plow head along the length of the conveyor belt.

[0015] In one embodiment of this utility model, the guide plate is located between the plow and the frame in the height direction of the conveyor belt.

[0016] The beneficial effects of this utility model are as follows: This utility model proposes a leveling device for protecting the magnetic separator on a belt conveyor. By using a plow to plow off excess material, it prevents problems with excessive material height and quantity during conveying. The plowed material is guided to a designated position by a guide plate. This utility model can completely eliminate the phenomenon of large material flows colliding with the disc magnetic separator, enhance the continuity of belt conveyor transport, effectively ensure the safe and stable operation of the conveying system, reduce conveyor maintenance costs, save significant spare parts expenses, and greatly reduce the labor intensity of workers. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the structure of a leveling device for protecting the iron remover on a belt conveyor according to an embodiment of the present invention;

[0020] Figure 2 This is a top view schematic diagram of a material leveling device for protecting the iron remover on a belt conveyor provided in one embodiment of the present invention;

[0021] Figure 3This is a side view of a material leveling device for protecting the iron remover on a belt conveyor, provided in one embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the operating state of the leveling device for protecting the iron remover on a belt conveyor provided in one embodiment of the present invention.

[0023] The attached figures are labeled as follows:

[0024] 10. Gantry; 20. Plowhead; 30. Guide plate; 40. Iron remover; 50. Conveyor belt; 51. Frame. Detailed Implementation

[0025] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0026] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0027] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0028] Please see Figures 1 to 4 , Figure 1 A material leveling device for protecting the iron separator 40 on a belt conveyor, provided in one embodiment of the present invention, includes a gantry 10, a plow 20, and a guide plate 30; the gantry 10 is mounted on the belt conveyor and is located in the front direction of the iron separator 40; the plow 20 is mounted on the gantry 10 and is spaced apart from the surface of the conveyor belt 50 of the belt conveyor; the guide plate 30 is mounted on the gantry 10 and is located on both sides of the conveyor belt 50 and below the plow 20; wherein, the distance between the bottom end of the plow 20 and the surface of the conveyor belt 50 is not greater than the distance between the bottom end of the iron separator 40 and the surface of the conveyor belt 50.

[0029] Specifically, in this embodiment of the invention, a leveling device is used to eliminate occasional large material flows 100 on the conveyor belt 50, preventing them from directly colliding with and damaging the electromagnet-type iron separator 40 behind the conveyor belt 50. The leveling device comprises three core components: a gantry 10, a plowshare 20, and a guide plate 30. The gantry 10, as the main support structure, is typically in the form of a column and is directly and firmly fixed to the belt conveyor. Its installation position is controlled in the forward direction of the iron separator 40, that is, in front of the coal flow direction on the conveyor belt 50. The plowshare 20 is mounted on the gantry 10, with a preset distance between its bottom end and the surface of the conveyor belt 50. The guide plate 30 is also mounted on the gantry 10, arranged on both sides of the conveyor belt 50, and located below the plowshare 20.

[0030] More specifically, the core of the leveling device lies in the fact that the distance between the bottom of the plowshare 20 and the surface of the conveyor belt 50 is set to be no greater than the distance between the bottom of the magnetic separator 40 and the surface of the conveyor belt 50. By setting this distance, the plowshare 20 can effectively scrape off excess material layers on the conveyor belt 50 that are higher than the allowable passage height of the magnetic separator 40, thereby protecting the magnetic separator 40 from direct impact from the large material flow 100. The scraped material is received by the guide plates 30 located below the plowshares 20 on both sides and guided to both sides of the conveyor belt 50, preventing it from falling into the return section of the conveyor belt 50 and causing equipment wear or other operational problems.

[0031] Furthermore, the materials transported by the conveyor belt 50 exhibit an imbalance in loading at the beginning of the conveyor belt 50, meaning there are varying heights of material piles on the surface of the conveyor belt 50. The plowshare 20, in addition to scraping off excessively tall materials, can also work in conjunction with the operating speed of the conveyor belt 50 to level the material flow, pushing excessively tall piles to adjacent, lower piles, or to the outside of the conveyor belt 50. This prevents excessive material from passing through the iron separator 40 behind the conveyor belt 50, which could lead to incomplete removal of iron impurities. Thus, by leveling the oversized materials on the conveyor belt 50 with the plowshare 20, the effective operation of the iron separator 40 is ensured.

[0032] Please see the appendix Figure 4 In one embodiment, the distance between the bottom end of the plowshare 20 and the surface of the conveyor belt 50 is less than the distance between the bottom end of the iron remover 40 and the surface of the conveyor belt 50.

[0033] Specifically, in this embodiment of the invention, the distance between the bottom end of the plow head 20 and the surface of the conveyor belt 50 in the leveling device is set to be less than the distance between the bottom end of the iron separator 40 and the surface of the conveyor belt 50. This allows the leveling device to function as a protector of the rear iron separator 40. Since the plow head 20 is located in front of the iron separator 40, and its bottom end is lower than the corresponding height of the iron separator 40, this means that the lower edge of the plow head 20 is closer to the surface of the conveyor belt 50 than the lower edge of the iron separator 40. Therefore, when the material flow on the conveyor belt 50 passes over the plow head 20, the plow head 20 scrapes the material layer at a height lower than the allowable passage height of the iron separator 40. Any material that reaches the set height of the plow head 20, i.e., has not yet reached the lower edge of the iron separator 40, will be scraped off prematurely. In this way, the leveling device eliminates potentially excessively high material layers (including material accumulations that are close to but have not yet reached the height of the magnetic separator 40) earlier and more thoroughly before the material flow reaches the area of ​​the magnetic separator 40, thereby ensuring that the height of the subsequent material flow passing through the magnetic separator 40 is absolutely lower than the set space height at the lower edge of the magnetic separator 40. Thus, the possibility of a large material flow 100 colliding with the magnetic separator 40 is fundamentally eliminated, reliably protecting the magnetic separator 40.

[0034] Please see the appendix Figure 1 and Figure 2 In one embodiment, the width of the plow 20 gradually increases from small to large along the material feeding direction on the conveyor belt 50.

[0035] Specifically, in this embodiment of the invention, the width of the plowhead 20 of the leveling device gradually increases from small to large along the material-feeding direction on the conveyor belt 50. This results in a narrower front end (the receiving end) of the plowhead 20 and a gradually increasing width at the rear end (away from the material-feeding direction) in the direction of material flow. This gradually widening geometry ensures that when the material flow carried by the conveyor belt 50 moves forward and contacts the plowhead 20, the narrower front end contacts the material first, causing initial disturbance and guidance to the material flow. As the material continues to flow backward along the surface of the plowhead 20, the continuous increase in the width of the plowhead 20 provides a gradually expanding lateral guiding space for the material. This allows the material to disperse and flow more smoothly and evenly to both sides under the action of the plowhead 20, avoiding sudden congestion, accumulation, or violent collisions at the plowhead 20. Ensuring a smooth transition and effective diffusion of the material flow, this gradually widening plowhead 20 structure optimizes the scraping and guiding process, providing support for the overall protection of the leveling device.

[0036] Please see the appendix Figures 1 to 3 In one embodiment, the top of the plowshare 20 is connected to the gantry 10, and the plowshare 20 includes two plow blades arranged at an angle.

[0037] Specifically, in this embodiment of the invention, the plow head 20 of the leveling device consists of two plow plates arranged at an included angle. These two plow plates intersect at a specific angle, forming the main working body of the plow head 20. The plow head 20, arranged at an included angle, achieves the function of material distribution and guidance. The top of the plow head 20, i.e., its upper connecting end, is fixedly connected to the gantry 10, typically through welding or other reliable connection methods. This top connection method securely suspends the plow head 20 below the gantry 10 structure, ensuring sufficient structural stability and positional accuracy when facing the impact of the material flow from the conveyor belt 50. The two plow plates converge near the top connection point and extend downwards; their included angle structure allows the material to naturally flow to both sides upon contact with the plow head 20, providing the basic geometric conditions for subsequent material leveling and guidance.

[0038] Please see the appendix Figures 1 to 3 In one embodiment, two gantry frames 10 are spaced apart in the material feeding direction of the conveyor belt 50. The guide plates 30 are provided through both sides of the gantry frame 10, and both sides of the gantry frame 10 are connected to the frame 51 of the conveyor belt 50.

[0039] Specifically, in this embodiment of the invention, two gantry frames 10 of the leveling device are spaced apart in the material infeed direction of the conveyor belt 50, forming a pair of support points arranged front-to-back (along the material flow direction). The main structure of each gantry frame 10 has guide plates 30 penetrating its two sides, allowing the guide plates 30 to be passed through by structural members of the gantry frame 10 or for the gantry frame 10 columns to be located at specific positions on the guide plates 30, forming a cross-fixed connection. This also increases the structural strength of the guide plates 30 connected between the two gantry frames 10. Simultaneously, the two sides of the gantry frame 10 (usually referring to the bottom or outer side of the gantry frame 10 columns) are directly connected to the frame 51 of the conveyor belt 50. The gantry frames 10 are firmly fixed to the main structure of the conveyor, providing a supporting foundation for the entire leveling device. The spaced arrangement of the two gantry frames 10 along the material flow direction, combined with their respective connections to the two sides of the frame 51, constitutes a stable overall support frame, ensuring the structural rigidity and positional stability of the leveling device during operation.

[0040] Please see the appendix Figures 1 to 3 In one embodiment, the spacing between the inner sides of the gantry 10 is greater than the width of the conveyor belt 50. The spacing between the inner sides of the gantry 10 is equal to the spacing between the gantry 10s on both sides of the conveyor belt 50.

[0041] Specifically, in this embodiment of the invention, the inner spacing of the gantry 10 of the leveling device (the distance between the inner surfaces of the columns of the two spaced-apart gantry 10 in the width direction of the conveyor belt 50) is set to be greater than the actual width of the conveyor belt 50. This ensures that during the operation of the conveyor belt 50, the working section carrying the material and the edge areas on both sides can pass freely through the interior of the gantry 10 structure without friction or interference with the parts of the gantry 10, thus ensuring the continuity and safety of the conveyor belt 50's operation. Secondly, the inner spacing of the gantry 10 is equal to the spacing between the frames 51 on both sides of the conveyor belt 50. That is, the inner distance between the frames 51 (e.g., side plates or longitudinal beams) located on both sides of the conveyor belt 50 for mounting and supporting the material. This design, where the inner spacing of the gantry 10 is consistent with the spacing of these frames 51, ensures that the width specifications of the gantry 10 structure perfectly match the width specifications of the conveyor's main frame. This allows the gantry 10 to be directly and smoothly installed and fixed on the frame 51 on both sides of the conveyor belt 50 without the need for additional adapter structures, thereby simplifying the installation process and ensuring the stable integration of the entire leveling device with the main structure of the conveyor.

[0042] Please see the appendix Figures 1 to 3 In one embodiment, in the width direction of the conveyor belt 50, the size of the plow head 20 is larger than the size of the conveyor belt 50, and the outer contour of the guide plate 30 protrudes beyond the outer contour of the plow head 20. In the length direction of the conveyor belt 50, the size of the guide plate 30 is larger than the size of the plow head 20. In the height direction of the conveyor belt 50, the guide plate 30 is located between the plow head 20 and the frame 51.

[0043] Specifically, in this embodiment of the utility model, the plowshare 20, guide plate 30, conveyor belt 50, and frame 51 in the leveling device have corresponding geometric relationships in their spatial layout. That is, in the width direction of the conveyor belt 50, the lateral dimension of the plowshare 20 is designed to be larger than the width of the conveyor belt 50 itself, ensuring that it can completely cover the working surface of the conveyor belt 50. Simultaneously, in this direction, the outer contour of the guide plate 30 protrudes beyond the outer contour of the plowshare 20 on both sides of the conveyor belt 50, giving the guide plate 30 a wider lateral extension range, guiding the diverted material to a sufficiently far position outside the conveyor belt 50. In the length direction of the conveyor belt 50, the dimension of the guide plate 30 along the material running direction is larger than the corresponding dimension of the plowshare 20, allowing it to extend in both the front and rear directions of the plowshare 20, so as to completely receive the oversized material diverted and screened by the plowshare 20. In the height direction of the conveyor belt 50, the guide plate 30 is spatially positioned between the plow head 20 and the frame 51. Specifically, the plow head 20 is at a higher position, while the guide plate 30 is arranged below the plow head 20, obscuring the lower-positioned frame 51, so that the separated material is screened out onto the outside of the conveyor belt 50 and the conveyor. The structural framework of the leveling device is determined by the clearly defined three-dimensional dimensional positional relationship.

[0044] In one embodiment, a leveling device is arranged on a belt conveyor to protect the electromagnet magnetic separator 40 on the conveyor, eliminating the possibility of occasional large material flows 100 from the conveyor belt 50 colliding with the installed electromagnet magnetic separator 40, thus preventing damage to the separator 40 and ensuring the continuous and stable operation of the conveying system and subsequent processes. This leveling device, also known as a coal leveler, mainly consists of a gantry 10, a plowshare 20, and a guide plate 30. Two gantry 10s are spaced apart in the material inflow direction of the conveyor belt 50, forming a support frame. The two sides of the gantry 10 are firmly connected to the frames 51 on both sides of the conveyor belt 50, with the inner spacing greater than the actual width of the conveyor belt 50, ensuring unobstructed operation of the conveyor belt 50. Simultaneously, the inner spacing of the gantry 10 is equal to the inner distance between the frames 51 on both sides of the conveyor belt 50, ensuring that the width of the gantry 10 matches the main frame of the conveyor, facilitating stable installation.

[0045] The plowshare 20 is fixedly connected to the gantry 10 and is specifically composed of two plow plates welded together at a specific angle, typically forming a herringbone or V-shaped structure. The width of the plowshare 20 gradually increases from small to large along the material flow direction on the conveyor belt 50. The narrower front end facilitates initial material contact, while the wider rear end provides a gradually expanding lateral flow space, allowing oversized materials to flow smoothly and evenly to both sides, avoiding congestion. The distance between the bottom of the plowshare 20 and the surface of the conveyor belt 50 is set to a value no greater than the distance between the bottom of the rear electromagnet magnetic separator 40 and the surface of the conveyor belt 50. This allows the plowshare 20 to scrape materials ahead of the separator 40 at a lower size standard, thoroughly removing any potentially excessively high material layers that could reach the height of the separator 40. This ensures that the height of the subsequent material flow passing through the separator 40 is below the maximum height allowed by the separator 40, fundamentally eliminating any possibility of large material flows 100 colliding with the separator 40.

[0046] Two guide plates 30 are installed on the gantry 10, located on both sides of the conveyor belt 50 and directly below the plowshare 20. Structural components of the gantry 10 extend through the guide plates 30 on both sides, forming a cross-fixed connection. In the width direction of the conveyor belt 50, the outer contour of the guide plate 30 protrudes beyond the outer contour of the plowshare 20, providing a wider lateral extension range. In the length direction of the conveyor belt 50, the size of the guide plate 30 is larger than that of the plowshare 20, allowing it to extend in both the front and rear directions of the plowshare 20. In the height direction of the conveyor belt 50, the guide plate 30 is located between the plowshare 20 and the frame 51, with the plowshare 20 on top, the guide plate 30 centrally receiving the material, and the frame 51 below or connected to it. The core function of the guide plate 30 is to receive the material scraped off by the plowshare 20 and guide it to designated positions on both sides of the conveyor belt 50, effectively preventing this material from falling into the return section of the conveyor belt 50, avoiding abnormal wear of the return idlers and rollers, and problems such as conveyor belt 50 deviation.

[0047] When the material on the conveyor belt 50 flows through the leveling device (i.e., the coal leveler), the plow 20, using its gradually widening structure and a height lower than the set height of the magnetic separator 40, scrapes off the material layer exceeding the safe height. The scraped material falls into the guide plate 30 below and is guided to the safe areas on both sides. In this way, the leveling device completely eliminates the situation where the large material flow 100 on the conveyor belt 50 directly impacts the rear electromagnet magnetic separator 40. It effectively protects the magnetic separator 40 from collision damage or detachment, enhances the continuity and stability of the conveying system, reduces unexpected downtime, reduces the maintenance and replacement costs of the magnetic separator 40, conveyor belt 50, rollers, idlers, and other equipment, automatically eliminates the large material flow 100, and reduces the labor intensity of operators; moreover, the size of the leveling device can be customized according to different models of conveyors and magnetic separators 40, making it highly adaptable. This utility model embodiment provides a protection mechanism with a reasonable structure, reliable function, and low cost, effectively solving the problem that the electromagnet magnetic separator 40 is easily damaged by the impact of the large material flow 100.

[0048] Please see the appendix Figure 4 In one embodiment, the conveyor belt 50 is equipped with an (electromagnetic disc type) iron separator 40 and a material leveler, i.e., a coal leveler. When there is a large material flow 100 on the conveyor belt 50 that exceeds the height of the bottom surface of the coal leveler, it will first pass through the position of the coal leveler and be scraped by its plow head 20 into flat material that conforms to the height of the bottom surface of the iron separator 40. The conveyor belt 50 is arranged at an inclination such that the height of the material in the incoming direction is lower than that in the feeding direction, i.e., it is used to transport materials from a low position to a high position. At this time, the iron separator 40 and the plow head 20 of the coal leveler are also arranged at an inclination parallel to the surface of the conveyor belt 50. For the plow head 20 of the coal leveler, its downward inclination towards the material in the incoming direction of the conveyor belt 50 provides a better scraping effect on oversized materials compared to a horizontal arrangement, ensuring that the plow head 20 scrapes oversized materials smoothly and evenly.

[0049] In summary, the material leveling device for protecting the magnetic separator 40 on a belt conveyor provided by this utility model, by setting the bottom height of the plow 20 to be no greater than the bottom height of the magnetic separator 40, allows the plow 20 to scrape off excess material on the conveyor belt 50 that reaches or approaches the height of the magnetic separator 40 in advance, ensuring the safety of the material flow height through the magnetic separator 40. The guide plate 30 is located below the plow 20 and forms an extended receiving surface, receiving the material scraped off by the plow 20 and guiding it to both sides of the conveyor belt 50, preventing material from falling into the return section of the conveyor belt 50 and causing equipment wear or shutdown. In other words, by utilizing the low position and gradually widening structure of the plow 20 to level the excessively high material layer, the physical basis for the large material flow 100 is eliminated. The guide plate 30 handles the falling material, blocking the direct collision path of the large material flow 100 on the conveyor belt 50 with the rear electro-magnetic magnetic separator 40, ensuring the safety of the magnetic separator 40 and the continuous and stable operation of the conveying system, effectively reducing maintenance costs and labor intensity.

[0050] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A leveling device for protecting the iron separator (40) on a belt conveyor, characterized in that, include: The gantry (10) is mounted on the belt conveyor and is positioned in front of the iron separator (40); A plowshare (20), mounted on the gantry (10) and spaced apart from the surface of the conveyor belt (50) of the belt conveyor; and The guide plate (30) is mounted on the gantry (10) and located on both sides of the conveyor belt (50) and below the plow (20); The distance between the bottom end of the plowshare (20) and the surface of the conveyor belt (50) is no greater than the distance between the bottom end of the iron remover (40) and the surface of the conveyor belt (50).

2. The apparatus according to claim 1, characterized in that, The distance between the bottom end of the plowshare (20) and the surface of the conveyor belt (50) is less than the distance between the bottom end of the iron remover (40) and the surface of the conveyor belt (50).

3. The apparatus according to claim 1, characterized in that, The width of the plow (20) gradually increases from small to large along the material feeding direction on the conveyor belt (50).

4. The apparatus according to claim 1, characterized in that, The top of the plow (20) is connected to the gantry (10), and the plow (20) includes two plow blades arranged at an angle.

5. The apparatus according to claim 1, characterized in that, Two gantry frames (10) are spaced apart in the material feeding direction of the conveyor belt (50).

6. The apparatus according to claim 1, characterized in that, The gantry (10) is provided through the guide plate (30) on both sides, and the gantry (10) is connected to the frame (51) of the conveyor belt (50) on both sides.

7. The apparatus according to claim 6, characterized in that, The spacing inside the gantry (10) is greater than the width of the conveyor belt (50), and the spacing inside the gantry (10) is equal to the spacing between the frames (51) on both sides of the conveyor belt (50).

8. The apparatus according to claim 1, characterized in that, In the width direction of the conveyor belt (50), the size of the plow (20) is larger than the size of the conveyor belt (50), and the outer contour of the guide plate (30) protrudes from the outer contour of the plow (20).

9. The apparatus according to claim 1, characterized in that, Along the length of the conveyor belt (50), the size of the guide plate (30) is larger than the size of the plow (20).

10. The apparatus according to claim 6, characterized in that, In the height direction of the conveyor belt (50), the guide plate (30) is located between the plow (20) and the frame (51).

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