A plow-type unloader

Abstract

The application discloses a plough type unloader, which comprises a plough type unloader body arranged above a conveying belt, the plough type unloader body being provided with a plough coal plate, and at least one set of wing type auxiliary ploughs arranged on the sides of the plough coal plate; the surface of the wing type auxiliary plough is arranged vertically or obliquely relative to the upper surface of the conveying belt, and a preset interval is formed between the bottom edge of the wing type auxiliary plough and the upper surface of the conveying belt. According to the scheme, the wing type auxiliary plough is additionally arranged on the side of the plough coal plate, the surface of the auxiliary plough is arranged vertically or obliquely, and the bottom edge of the auxiliary plough is kept at a preset interval from the upper surface of the conveying belt, so that the coal flow stripped by the plough coal plate is subjected to secondary flow guiding and shaping by the auxiliary plough, and is changed from concentrated accumulation to uniform distribution in the width direction of the conveying belt, thereby effectively eliminating the coal scattering phenomenon; meanwhile, the bottom edge of the auxiliary plough is not in contact with the conveying belt, thereby avoiding the wear of the conveying belt and prolonging the service life of the equipment.

Description

Technical Field

[0001] This application generally relates to the field of belt conveyor technology. More specifically, this application relates to a plow-type unloader. Background Technology

[0002] Plow-type unloaders are commonly used unloading devices in belt conveyor systems, widely applied in coal (material) conveying systems in industries such as thermal power generation, coal chemical industry, and port terminals. Typically positioned above the conveyor belt, the plow-type unloader uses plow plates to scrape material running on the conveyor belt off its surface, allowing it to fall through the discharge port into a predetermined location.

[0003] The plow plate of existing plow-type unloaders is usually a single flat plate or V-shaped plate, which is fixedly installed above the conveyor belt with its bottom edge close to the upper surface of the conveyor belt. When the conveyor belt is loaded with material, the material moves with the conveyor belt to the plow plate, which then peels the material off the belt surface and guides it to the discharge port.

[0004] However, existing plow-type unloaders have obvious technical defects in actual use: due to the single contact angle between the plow plate and the conveyor belt and the single unloading path, after the material is stripped by the plow plate, it often concentrates in a local area of ​​the plow plate (such as the position near the rear end of the plow plate) and falls down in a large amount at once, resulting in a serious uneven distribution of material in the width direction of the discharge port, with excessive accumulation in the middle and lack of material or even no material on the sides. Some material directly overflows from the edge of the discharge port, causing serious coal spillage.

[0005] In view of this, there is an urgent need to provide a plow-type unloader solution in order to effectively eliminate coal spillage. Summary of the Invention

[0006] In order to at least solve one or more of the technical problems mentioned above, this application proposes a plow-type unloader solution in several aspects.

[0007] This application provides a plow-type unloader, comprising: a plow-type unloader body disposed above a conveyor belt, the plow-type unloader body having a plow plate; and at least one set of wing-type auxiliary plows disposed beside the plow plate; the surface of the wing-type auxiliary plows is arranged perpendicularly or obliquely relative to the upper surface of the conveyor belt, and the bottom edge of the wing-type auxiliary plows has a predetermined distance from the upper surface of the conveyor belt.

[0008] In some embodiments, the wing-shaped auxiliary plow is welded to the plow plate.

[0009] In some embodiments, a support assembly is also included, wherein the wing-type auxiliary plow is supported by the support assembly on the side of the plow plate and above the conveyor belt.

[0010] In some embodiments, the support assembly includes a triangular bracket, the base of which is fixedly connected to the side of the conveyor belt frame, the apex of which extends above the conveyor belt, and the wing-type auxiliary plow is fixedly connected to the apex.

[0011] In some embodiments, the triangular bracket is welded from I-beams, and the bottom edge of the triangular bracket is 400mm from the edge of the conveyor belt.

[0012] In some embodiments, the wing-shaped auxiliary plow is a wear-resistant steel plate, and the Brinell hardness value of the wear-resistant steel plate is not less than 500.

[0013] In some embodiments, the preset spacing is 250-350mm.

[0014] In some embodiments, the wear-resistant steel plate has dimensions of 500×300×14mm in length, width, and thickness.

[0015] In some embodiments, multiple sets of the wing-type auxiliary plows are arranged at intervals along the length direction of the plow plate, and the outer edges of each wing-type auxiliary plow are located on the same straight line, which is parallel to the extension direction of the plow plate.

[0016] In some embodiments, at least one set of the wing-type auxiliary plows is disposed at 2 / 3 of the total length of the plow plate along the running direction of the conveyor belt.

[0017] By adding an airfoil-type auxiliary plow to the side of the plow plate and setting the auxiliary plow plate vertically or at an angle with a preset distance between its bottom edge and the upper surface of the conveyor belt, the coal flow stripped by the plow plate is guided and shaped by the auxiliary plow, changing from concentrated accumulation to uniform distribution in the width direction of the conveyor belt, effectively eliminating coal spillage. At the same time, the bottom edge of the auxiliary plow does not contact the conveyor belt, avoiding conveyor belt wear and extending the service life of the equipment. In addition, the elimination of coal spillage improves the working environment, significantly reduces manual cleaning costs, and is conducive to the stable and efficient operation of the coal conveying system. Attached Figure Description

[0018] The above features of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, and the same or corresponding reference numerals denote the same or corresponding parts, wherein:

[0019] Figure 1 A schematic diagram of a plow-type unloader according to an embodiment of this application is shown; Figure 2 A schematic diagram of a plow-type unloader according to an embodiment of this application is shown; Figure 3A schematic diagram of a plow-type unloader according to an embodiment of this application is shown.

[0020] In the diagram: 100, plow-type unloader; 200, conveyor belt; 101. Coal plow plate; 102. Airfoil-type auxiliary plow. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] It should be understood that the terms "comprising" and "including" used in the specification and claims of this application indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0023] It should also be understood that the terminology used herein is for describing particular embodiments only and is not intended to limit the application. As used in this specification and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this specification and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0024] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0025] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0026] like Figure 1 and Figure 2As shown, in some embodiments, this application provides a plow-type unloader 100, comprising: a plow-type unloader body disposed above a conveyor belt 200, the plow-type unloader body having a plow plate 101; and at least one set of wing-type auxiliary plows 102 disposed beside the plow plate 101; the surface of the wing-type auxiliary plows 102 is arranged perpendicularly or obliquely relative to the upper surface of the conveyor belt 200, and the bottom edge of the wing-type auxiliary plows 102 has a predetermined distance from the upper surface of the conveyor belt 200.

[0027] In this application, the plow-type unloader 100 includes a plow-type unloader body and at least one set of wing-type auxiliary plows 102. The plow-type unloader body is positioned above the conveyor belt 200 and has a plow plate 101. The plow plate 101 is used to peel the coal flow running on the conveyor belt 200 from the surface of the conveyor belt 200 and guide it towards the discharge port. The wing-type auxiliary plows 102 are positioned beside the plow plate 101, with their surfaces perpendicular or inclined to the upper surface of the conveyor belt 200, and a predetermined distance between their bottom edges and the upper surface of the conveyor belt 200.

[0028] During the operation of the plow-type unloader 100, the conveyor belt 200 carries the coal flow along a predetermined direction. When the coal flow reaches the plow plate 101, the plow plate 101 separates the coal flow from the surface of the conveyor belt 200 and initially guides it towards the discharge port. After leaving the plow plate 101, the coal flow is not completely uniformly distributed, but tends to concentrate and accumulate in local areas of the plow plate 101, resulting in a severely uneven distribution of the coal flow on both sides of the discharge port, causing coal spillage. After adding an airfoil-type auxiliary plow 102 to the side of the plow plate 101, the coal flow, initially guided by the plow plate 101, continues to move forward to the position of the airfoil-type auxiliary plow 102. Since the plate surface of the airfoil-type auxiliary plow 102 is set vertically or inclined relative to the upper surface of the conveyor belt 200, and there is a preset distance between the bottom edge and the upper surface of the conveyor belt 200, the coal flow is guided and shaped twice when passing through the airfoil-type auxiliary plow 102, so that the coal flow is redistributed in the width direction of the conveyor belt 200, changing from a concentrated accumulation state to a continuous and uniform distribution state, and finally falling into the predetermined position through the discharge port in a relatively uniform form.

[0029] Meanwhile, a preset gap exists between the bottom edge of the wing-type auxiliary plow 102 and the upper surface of the conveyor belt 200. This gap prevents direct contact between the wing-type auxiliary plow 102 and the conveyor belt 200, ensuring effective guidance of the coal flow while avoiding scraping and wear on the surface of the conveyor belt 200, thus extending the service life of the conveyor belt 200. Furthermore, because the coal flow is evenly distributed after being guided by the wing-type auxiliary plow 102, localized excessive accumulation that causes coal to overflow from the feed inlet edge is eliminated, effectively preventing coal spillage, avoiding material waste, improving the working environment around the coal conveyor belt, and significantly reducing the workload of manual cleanup of spilled coal, thereby improving the overall operating efficiency of the coal conveying system.

[0030] In one possible implementation, the blade of the wing-type auxiliary plow 102 is positioned perpendicular to the upper surface of the conveyor belt 200, providing direct obstruction and guidance to the coal flow, allowing for rapid adjustment of the coal flow direction. In another possible implementation, the blade of the wing-type auxiliary plow 102 is inclined relative to the upper surface of the conveyor belt 200, providing gradual guidance to the coal flow, reducing the impact and resistance between the coal flow and the plow blade, resulting in a smoother transition. The wing-type auxiliary plow 102 can be used in one or multiple sets. When multiple sets are used, they can be spaced apart along the length of the plow plate 101 as needed to further optimize the coal flow distribution.

[0031] In one specific implementation, the wing-shaped auxiliary plow 102 is welded to the plow plate 101.

[0032] In this application, the wing-shaped auxiliary plow 102 is directly welded to the coal plow plate 101. Specifically, one side of the wing-shaped auxiliary plow 102 is fixedly connected to the corresponding side of the coal plow plate 101 by welding, making the wing-shaped auxiliary plow 102 an integrated extension structure of the coal plow plate 101. Welded connections have the advantages of high connection strength, structural stability, and no relative displacement, ensuring that the wing-shaped auxiliary plow 102 maintains its relative position with the coal plow plate 101 under long-term coal flow impact and friction conditions, avoiding displacement of the auxiliary plow due to loose connection and thus affecting the unloading effect.

[0033] Welding eliminates the need for additional connectors and support structures, simplifying the overall structure of the plow-type unloader 100, reducing manufacturing and installation costs, and facilitating on-site construction and modification. This means that there is no need to make large-scale structural changes to the original plow-type unloader body; the modification can be completed simply by welding the wing-type auxiliary plow 102 directly to the corresponding position of the plow plate 101. The construction period is short and the modification difficulty is low.

[0034] In one specific implementation, a support assembly is also included, through which the wing-type auxiliary plow 102 is supported beside the plow plate 101 and above the conveyor belt 200. The support assembly includes a triangular bracket, the base of which is fixedly connected to the side of the conveyor belt 200 frame, and the apex of which extends above the conveyor belt 200, with the wing-type auxiliary plow 102 fixedly connected at the apex. The triangular bracket is welded from I-beams, and its base is 400mm from the edge of the conveyor belt 200.

[0035] In this application, the plow-type unloader 100 also includes a support assembly, through which the wing-type auxiliary plow 102 is supported beside the plow plate 101 and above the conveyor belt 200. Specifically, the support assembly includes a triangular bracket, the base of which is fixedly connected to the side of the conveyor belt 200 frame, and the apex of which extends upward from the base to above the conveyor belt 200, with the wing-type auxiliary plow 102 fixedly connected at the apex. Through this arrangement, the triangular bracket forms a stable force-transmitting bridge between the side of the conveyor belt 200 frame and the wing-type auxiliary plow 102, firmly supporting the wing-type auxiliary plow 102 above the conveyor belt 200 and beside the plow plate 101.

[0036] The triangular support in this design is constructed from multiple welded I-beams. I-beams are characterized by their rational cross-sectional shape, high bending strength, and material efficiency, making them suitable for withstanding coal flow impact and vibration loads. The I-beams are connected end-to-end by welding, forming a robust triangular frame. The base of this triangular frame serves as the mounting foundation for the entire support assembly, and is welded and fixed to the side of the conveyor belt 200's frame, ensuring that the triangular support does not shift or loosen during long-term operation.

[0037] It is worth noting that in this design, the distance between the bottom edge of the triangular bracket and the edge of the conveyor belt 200 is 400mm. This distance provides sufficient installation space for the triangular bracket, ensuring that the bracket can be securely fixed to the side of the frame. On the other hand, it ensures that the wing-type auxiliary plow 102, which is fixedly connected to the top corner, is located above the conveyor belt 200 and next to the coal plow plate 101, so as to ensure that the wing-type auxiliary plow 102 accurately guides the coal flow.

[0038] This solution uses a triangular bracket to support the wing-type auxiliary plow 102 above the conveyor belt 200. This ensures that the auxiliary plow is in the correct guiding position next to the plow plate 101, and also maintains a predetermined distance between the auxiliary plow and the conveyor belt 200, avoiding direct contact between the auxiliary plow and the conveyor belt 200 and causing wear, which helps to extend the service life of the conveyor belt 200.

[0039] In some embodiments, the wing-shaped auxiliary plow 102 is a wear-resistant steel plate, and the Brinell hardness value of the wear-resistant steel plate is not less than 500.

[0040] In this application, the wing-type auxiliary plow 102 is made of wear-resistant steel plate with a Brinell hardness value of not less than 500. Brinell hardness is a commonly used index to characterize a material's ability to resist localized surface indentation deformation, and its value directly reflects the wear resistance of the steel plate. In coal conveying systems, the coal flow often contains hard particles such as coal chunks and gangue. These materials move at high speed along with the coal flow on the conveyor belt 200, generating continuous impact and friction with the surface of the wing-type auxiliary plow 102. If the hardness of the auxiliary plow material is insufficient, the surface is easily eroded by the coal flow during long-term operation, gradually forming grooves or depressions, causing changes in the surface shape, which in turn affects the guiding effect on the coal flow and may even increase the preset spacing, weakening the shaping effect. Setting the Brinell hardness value to not less than 500 means that the wear-resistant steel plate has high surface hardness and excellent wear resistance. The use of wear-resistant steel plates of this hardness to manufacture the wing-type auxiliary plow 102 enables the plow plate surface to maintain its original shape and size under long-term impact and friction from coal flow. The plate surface is not prone to wear grooves or deformation, thus maintaining the preset distance between the bottom edge and the upper surface of the conveyor belt 200 for a long time. This ensures that the wing-type auxiliary plow 102 can effectively guide and shape the coal flow for secondary purposes throughout its entire service life, maintaining a uniform feeding effect.

[0041] In some implementations, the preset spacing is 250-350mm.

[0042] In this application, the bottom edge of the wing-type auxiliary plow 102 has a preset distance between it and the upper surface of the conveyor belt 200. This preset distance is 250mm to 350mm, preferably 300mm. The setting of the preset distance needs to take into account both the guiding effect and equipment safety. If the distance is too small, the bottom edge of the wing-type auxiliary plow 102 will be too close to the upper surface of the conveyor belt 200. When the thickness of the coal flow on the conveyor belt 200 fluctuates, the coal material exceeding the distance is prone to accumulate or get stuck at the bottom edge of the auxiliary plow. This not only affects the smooth passage of the coal flow, but may also cause scraping between the bottom edge of the auxiliary plow and the surface of the conveyor belt 200, accelerating the wear of the conveyor belt 200. If the distance is too large, the bottom edge of the auxiliary plow will be too high. The thick coal flow exceeding the height of the bottom edge of the auxiliary plow will pass directly under the auxiliary plow without being guided. The secondary guiding and shaping effect of the auxiliary plow on the coal flow will be significantly weakened, making it difficult to achieve the purpose of uniform material feeding.

[0043] This solution, by setting the preset spacing to 250mm to 350mm, takes into full account the fluctuation range of coal flow thickness under normal operating conditions of the coal conveying system. It balances the needs for effective flow guidance and prevention of jamming and scraping. This ensures that the wing-type auxiliary plow 102 provides sufficient guidance to the coal flow, redistributing it across the width of the conveyor belt 200, while preventing contact wear between the bottom edge of the auxiliary plow and the conveyor belt 200. It also provides sufficient passage space for normal fluctuations in coal flow thickness. More preferably, the preset spacing is 300mm. At this spacing, the flow guidance effect of the auxiliary plow and passage safety achieve the best balance, adapting to the actual needs of most coal conveying conditions.

[0044] In one specific implementation, the wear-resistant steel plate has dimensions of 500×300×14mm in length, width, and thickness.

[0045] In this application, the wing-type auxiliary plow 102 is a rectangular plate structure with a length, width, and thickness of 500mm, 300mm, and 14mm, respectively. The wing-type auxiliary plow 102 with these dimensions forms a reasonable fit with the plow plate 101, effectively receiving and guiding the coal flow stripped by the plow plate 101 without excessively occupying the space above the conveyor belt 200. The structure is compact and easy to install and maintain.

[0046] like Figure 3 As shown, in a specific embodiment, multiple sets of the wing-type auxiliary plows 102 are arranged at intervals along the length direction of the plow plate 101, and the outer edges of each of the wing-type auxiliary plows 102 are located on the same straight line, which is parallel to the extension direction of the plow plate 101.

[0047] In this application, multiple sets of wing-type auxiliary plows 102 are arranged at intervals along the length of the coal plow plate 101. The coal plow plate 101 has a predetermined length, which corresponds to the width direction of the conveyor belt 200. By setting wing-type auxiliary plows 102 at different positions along the length of the coal plow plate 101, each set of auxiliary plows guides the coal flow at different positions along the width direction of the conveyor belt 200, thereby achieving comprehensive coverage of the coal flow at all positions within the entire length of the coal plow plate 101. This avoids the problem of limited guiding range and unguided coal flow in some areas caused by setting auxiliary plows at only a single position. Multiple sets of wing-shaped auxiliary plows 102 are arranged at intervals, with predetermined gaps between adjacent auxiliary plows. These gaps provide local buffer space for the coal flow, allowing it to undergo a brief adjustment after passing through the previous auxiliary plow before entering the next for further shaping. Furthermore, the interval arrangement reduces the amount of auxiliary plow material used, lowering equipment weight and manufacturing costs, while facilitating the installation, adjustment, replacement, and maintenance of each set of auxiliary plows. During the operation of the plow-type unloader 100, the conveyor belt 200 carries the coal flow. After being stripped and initially guided by the plow plate 101, the coal flow is unevenly distributed along the width of the conveyor belt 200. As the coal flow passes sequentially through multiple sets of wing-shaped auxiliary plows 102 arranged at intervals along the length of the plow plate 101, each set of auxiliary plows performs secondary guidance and shaping on the coal flow at its respective width, gradually transitioning the coal flow from a concentrated accumulation state to a continuous and uniform distribution state along the width of the conveyor belt 200. Finally, the coal falls into the predetermined position through the discharge port in a uniform form, effectively eliminating coal spillage.

[0048] It is worth noting that the outer edges of each wing-type auxiliary plow 102 are located on the same straight line, and this straight line is parallel to the extension direction of the plow plate 101. Here, the outer edge refers to the edge of each wing-type auxiliary plow 102 facing the outer side of the conveyor belt 200. Ensuring that the outer edges of each auxiliary plow are collinear and parallel to the plow plate 101 guarantees that the installation position reference of each auxiliary plow is consistent in the width direction of the conveyor belt 200, meaning that all auxiliary plows are at the same distance from the edge of the conveyor belt 200. As the coal flow passes through each auxiliary plow sequentially, the starting position and path of each auxiliary plow's guiding effect on the coal flow at the corresponding width position remain consistent, thereby ensuring a uniform distribution of the coal flow across the entire width direction of the conveyor belt 200 and avoiding uneven coal flow distribution caused by inconsistent installation positions of the auxiliary plows.

[0049] In one specific implementation, at least one set of the wing-type auxiliary plows 102 is disposed at 2 / 3 of the total length of the plow plate 101 along the running direction of the conveyor belt 200.

[0050] In this application, the wing-type auxiliary plow 102 is positioned at two-thirds of the total length of the plow plate 101 along the running direction of the conveyor belt 200. Specifically, this position means that, starting from the front end of the plow plate 101 (the end where the coal flow first contacts the plow plate 101), and measuring two-thirds of the total length of the plow plate 101 along the running direction of the conveyor belt 200, the wing-type auxiliary plow 102 is located at this position. This position is the rear section of the plow plate 101, where the coal flow tends to accumulate significantly during unloading. During actual unloading, when the coal flow travels along the conveyor belt 200 to the plow plate 101, the plow plate 101 separates the coal flow from the surface of the conveyor belt 200 and guides it towards the discharge port. The coal flow after being stripped by the plow plate 101 is not evenly distributed, but rather concentrated in the rear section of the plow plate 101. This results in an excessive coal flow at the discharge port in that area, while the coal flow in other areas is insufficient, leading to uneven feeding and coal spillage.

[0051] The wing-type auxiliary plow 102 is positioned at 2 / 3 of the total length of the plow plate 101, where the coal flow is most concentrated and accumulated. The wing-type auxiliary plow 102 performs secondary guidance and shaping of the coal flow in this area, diverting the accumulated coal flow outwards and redistributing it along the width of the discharge port. This prevents the coal flow from concentrating and falling in large quantities only at the rear end of the plow plate 101, achieving continuous and uniform feeding. Furthermore, this position, located at the rear of the plow plate 101 and maintaining a predetermined distance from its end, ensures that after being guided by the wing-type auxiliary plow 102, the coal flow still has a 200-degree stretch of conveyor belt for further stabilizing its distribution, thus improving the guidance and shaping effect.

[0052] While numerous embodiments of this application have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will arise for those skilled in the art without departing from the spirit and intent of this application. It should be understood that various alternatives to the embodiments of this application described herein may be employed in the practice of this application. The appended claims are intended to define the scope of protection of this application and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A plow-type unloader, characterized in that, include: The plow-type unloader body is disposed above the conveyor belt, and the plow-type unloader body has a plow plate; as well as At least one set of wing-type auxiliary plows is disposed beside the plow plate; the surface of the wing-type auxiliary plow is disposed perpendicularly or inclined to the upper surface of the conveyor belt, and there is a preset distance between the bottom edge of the wing-type auxiliary plow and the upper surface of the conveyor belt.

2. The plow-type unloader according to claim 1, characterized in that, The wing-shaped auxiliary plow is welded to the plow plate.

3. The plow-type unloader according to claim 1, characterized in that, It also includes a support assembly, through which the wing-type auxiliary plow is supported on the side of the plow plate and above the conveyor belt.

4. The plow-type unloader according to claim 3, characterized in that, The support assembly includes a triangular bracket, the bottom edge of which is fixedly connected to the side of the conveyor belt frame, the apex of which extends above the conveyor belt, and the wing-type auxiliary plow is fixedly connected to the apex.

5. The plow-type unloader according to claim 4, characterized in that, The triangular bracket is made of welded I-beams, and the bottom edge of the triangular bracket is 400mm from the edge of the conveyor belt.

6. The plow-type unloader according to any one of claims 1-5, characterized in that, The wing-shaped auxiliary plow is made of wear-resistant steel plate, and the Brinell hardness value of the wear-resistant steel plate is not less than 500.

7. The plow-type unloader according to claim 6, characterized in that, The preset spacing is 250-350mm.

8. The plow-type unloader according to claim 7, characterized in that, The wear-resistant steel plate has dimensions of 500×300×14mm in length, width, and thickness.

9. The plow-type unloader according to claim 1, characterized in that, Multiple sets of the aforementioned wing-type auxiliary plows are arranged at intervals along the length direction of the plow plate, and the outer edges of each of the aforementioned wing-type auxiliary plows are located on the same straight line, which is parallel to the extension direction of the plow plate.

10. The plow-type unloader according to claim 9, characterized in that, At least one set of the wing-type auxiliary plows is located at 2 / 3 of the total length of the plow plate along the direction of the conveyor belt.

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