Cleaning and recycling device for belt conveyors

Abstract

The utility model relates to mechanical conveying equipment technical field, the utility model provides a kind of cleaning and recycling device for belt conveyor, for solving the problem of material sticking to the return section of belt conveyor, resulting in material scattering pollution environment, causing equipment failure. The device is arranged below the return section of belt conveyor, including receiving box, first mounting rod and material scraping plate. The receiving box is arranged below the return section of belt conveyor, for collecting the material scraped from the return section;The first mounting rod is arranged in the receiving box along the width direction of the return section of belt conveyor;The material scraping plate is detachably fixed on the first mounting rod along the length direction of the first mounting rod, and the top end of the material scraping plate abuts against the return section of belt conveyor, to scrape the material attached to the return section. The device realizes effective scraping and collection of the material of return section through the above structure, reduces material loss, reduces the risk of equipment failure, and ensures production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mechanical conveying equipment technology, specifically to a cleaning and recycling device for a belt conveyor. Background Technology

[0002] As a key piece of equipment for continuous material transport, belt conveyors are widely used in many industrial fields such as mining, coal, metallurgy, building materials, and grain. With their advantages of large conveying capacity, high efficiency, and stable operation, they have become the core equipment in the material transfer process.

[0003] During the actual operation of belt conveyors, after the material is unloaded at the end point, a certain amount of residual material often adheres to the surface of the return belt due to factors such as the material's own viscosity, humidity, or electrostatic adsorption. This phenomenon not only causes a series of problems: Firstly, when the return belt is running, the adhering material is easily scattered along the belt conveyor path, which on the one hand causes dust to spread and pollutes the surrounding working environment, which does not meet the environmental protection requirements of industrial production; on the other hand, it leads to material loss, which will significantly increase the production cost of enterprises, especially for high-value materials. Secondly, scattered materials tend to accumulate at key transmission components such as conveyor rollers and idlers, causing component jamming and increased wear. This not only reduces the operational stability of the equipment and causes malfunctions such as conveyor belt misalignment and slippage, but also requires frequent shutdowns for maintenance, seriously affecting production efficiency and increasing equipment maintenance costs and failure risks. Utility Model Content

[0004] To overcome the above-mentioned defects, the present invention provides a cleaning and recycling device for belt conveyors, which solves the technical problem that the return belt of belt conveyors sticks to materials during operation in the prior art. This not only causes materials to scatter along the way, resulting in dust pollution and material waste, but also easily causes equipment malfunctions due to scattered materials jamming the drums and idlers.

[0005] According to one aspect, at least one embodiment of the present invention provides a cleaning and recycling device for a belt conveyor, for installation below the return section of the belt conveyor, comprising: A receiving box, which is located below the return section of the belt conveyor, is used to collect the material scraped off from the return section of the belt conveyor; The first mounting rod is arranged inside the receiving box along the width direction of the return section of the belt conveyor; A scraper is detachably fixed to the first mounting rod along its length, and the top end of the scraper is used to abut against the return section of the belt conveyor to scrape off the material adhering to the return section of the belt conveyor.

[0006] For example, in a cleaning and recycling device for a belt conveyor provided in at least one embodiment of the present invention, the scraper has an arc-shaped scraping surface on the side facing the return section of the belt conveyor.

[0007] For example, in at least one embodiment of the present invention, a cleaning and recycling device for a belt conveyor further includes: The second mounting rod is disposed inside the receiving box and is located on the side of the first mounting rod away from the direction of travel of the return section of the belt conveyor; A cleaning brush is provided on the second mounting rod along its length, and the top of the cleaning brush is used to abut against and sweep away residual material on the return section of the belt conveyor.

[0008] For example, in a cleaning and recycling device for a belt conveyor provided in at least one embodiment of the present invention, a horizontal screw conveyor is provided at the bottom of the receiving box, a vertical screw conveyor is connected to the discharge end of the horizontal screw conveyor, a discharge pipe is connected to the discharge end of the vertical screw conveyor, and the discharge port of the discharge pipe faces the carrying section of the belt conveyor.

[0009] For example, in a cleaning and recycling device for a belt conveyor provided in at least one embodiment of the present invention, the vertical screw conveyor is rotatably connected to the discharge end of the horizontal screw conveyor via a rotary joint.

[0010] For example, in a cleaning and recycling device for a belt conveyor provided in at least one embodiment of the present invention, the inner bottom surface of the receiving box is inclined, and the inclined direction is towards the inner bottom of the receiving box, so as to guide the material in the receiving box to the horizontal screw conveyor.

[0011] For example, in a cleaning and recycling device for a belt conveyor provided in at least one embodiment of the present invention, a vibrating motor is provided in the inclined area of ​​the bottom surface of the receiving box to drive the receiving box to vibrate so that the material enters the horizontal screw conveyor.

[0012] For example, in a cleaning and recycling device for a belt conveyor provided in at least one embodiment of the present invention, the first mounting rod is ellipsably connected to the receiving box, and a tension elastic element is connected between both ends of the first mounting rod and the top wall of the receiving box. The tension elastic element is used to pull the first mounting rod upward so that the scraper plate elastically abuts against the return section of the belt conveyor.

[0013] For example, in a cleaning and recycling device for a belt conveyor provided in at least one embodiment of the present invention, the second mounting rod is flexibly connected to the receiving box, and a lifting adjustment mechanism is provided between both ends of the second mounting rod and the side wall of the receiving box. The lifting adjustment mechanism is used to drive the second mounting rod to lift and lower, so as to adjust the distance between the cleaning brush and the return section of the belt conveyor.

[0014] For example, in at least one embodiment of the present invention, a cleaning and recycling device for a belt conveyor further includes: Two pressure rollers are spaced above the receiving box along the running direction of the return section of the belt conveyor and located on the upper side of the return section of the belt conveyor. One of the pressure rollers is positioned on the side of the scraper plate near the return section of the belt conveyor in the direction of travel, and the other pressure roller is positioned on the side of the cleaning brush away from the scraper plate.

[0015] The beneficial effects of the embodiments of this utility model are as follows: In this invention, the top of the scraper plate abuts against the return section of the belt conveyor, which can directly act on the material adhering to the surface of the return section, forcibly separating the material from the return section, reducing the phenomenon of material carrying on the return section from the source, and preventing the material from scattering along the way with the return section. This reduces the risk of dust pollution, meets the environmental protection requirements of industrial production, and reduces material loss. Especially for high-value materials, it can significantly control the production cost of enterprises.

[0016] The receiving box is located below the return section and can directly receive the material scraped off by the scraper, preventing the scraped material from accumulating at the conveyor rollers, idlers and other transmission components. This reduces the problem of accelerated wear caused by material jamming, lowers the incidence of conveyor belt deviation and slippage, improves equipment operation stability, reduces the frequency of downtime maintenance, and ensures production efficiency.

[0017] The scraper blade is detachably fixed to the first mounting rod. When the scraper blade is worn or damaged due to long-term use, it can be disassembled and replaced separately without removing the first mounting rod or the receiving box as a whole. This simplifies maintenance operations, shortens maintenance time, and reduces equipment maintenance costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0019] Figure 1This is a schematic diagram of the structure of a cleaning and recycling device for a belt conveyor in one embodiment of the present invention; Figure 2 for Figure 1 A cross-sectional view of the cleaning and recycling device in the embodiment; Figure 3 for Figure 1 The second cross-sectional view of the cleaning and recycling device in the embodiment is shown in the diagram.

[0020] In the diagram: 1. Receiving box, 2. First mounting rod, 3. Scraper, 31. Arc-shaped scraper surface, 4. Second mounting rod, 5. Cleaning brush, 6. Horizontal screw conveyor, 7. Vertical screw conveyor, 8. Discharge pipe, 9. Vibrating motor, 10. Tension elastic element, 11. Pressure roller. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0021] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Belt conveyors, as equipment for continuous material transport, are used in industries such as mining, coal, metallurgy, building materials, and grain. They are essential equipment in material transfer processes due to their large conveying capacity, high efficiency, and stable operation. During the operation of a belt conveyor, after material is transported from the carrying section to the unloading point, the return section—the section of the belt returning from the unloading end to the feeding end—is prone to residual material adhering to its surface due to factors such as material stickiness, humidity, or electrostatic adsorption. If this residual material is not handled promptly, it will scatter along the return section's conveying path, causing dust pollution and material loss. It may also accumulate at transmission components such as rollers and idlers, leading to component jamming, accelerated wear, and malfunctions such as conveyor belt misalignment and slippage, affecting production efficiency and increasing maintenance costs. To solve these problems, this embodiment provides a cleaning and recycling device for belt conveyors, installed below the return section of the belt conveyor, to clean and recycle residual material on the surface of the return section.

[0027] like Figure 1 As shown, this device includes a receiving box 1, a first mounting rod 2, and a scraper 3. The receiving box 1 is located below the return section of the belt conveyor and has an overall box-shaped structure, used to receive material scraped from the surface of the return section. The first mounting rod 2 is installed inside the receiving box 1 along the width direction of the return section of the belt conveyor. Both ends of the first mounting rod 2 are connected to the inner sidewalls of the receiving box 1 to maintain its stable posture within the receiving box 1. The scraper 3 is installed on the first mounting rod 2 along its length direction, and the scraper 3 is detachably fixed to the first mounting rod 2. This detachable fixing method can be a bolt connection or a snap-fit ​​connection, facilitating subsequent replacement or maintenance of the scraper 3. The top of the scraper 3 extends to abut against the lower surface of the return section of the belt conveyor, and the length of the scraper 3 is adapted to the length of the first mounting rod 2 to ensure that the scraper 3 can cover the entire width direction of the return section, avoiding any missed scraping areas.

[0028] The basic working process of this device is as follows: After the belt conveyor starts, the return section moves continuously in a preset direction. When the return section passes the area of ​​scraper 3, the top of scraper 3 remains in contact with the lower surface of the return section. Under the movement of the return section, the residual material adhering to the surface of the return section is separated from the surface by scraper 3. The separated material falls downwards under the action of gravity and finally falls into the collection box 1 below, completing the initial scraping and collection of the material on the surface of the return section.

[0029] In this embodiment, the carrying section refers to the belt section of the belt conveyor used to carry and transport materials, and the two together constitute the complete conveying cycle of the belt conveyor.

[0030] To further improve the scraping effect, prevent material accumulation on the surface of scraper plate 3 during the scraping process, and reduce frictional damage to the return section surface caused by scraper plate 3, the structure of scraper plate 3 has been optimized in this device. For example... Figure 2 As shown, the scraper plate 3 has an arc-shaped scraping surface 31 on the side facing the return section of the belt conveyor. The top of the arc-shaped scraping surface 31 is flush with the top of the scraper plate 3, forming a contact end that abuts against the lower surface of the return section, and the curved surface of the arc-shaped scraping surface 31 is concave towards the running direction of the return section. During the scraping process, when the material on the surface of the return section moves to the scraper plate 3 with the return section, it first contacts the arc-shaped scraping surface 31. Compared with the planar scraping structure, the arc-shaped scraping surface 31 can provide a downward guiding trajectory for the material, allowing the material to slide smoothly along the curved surface and preventing the material from accumulating on the side of the scraper plate 3 facing the return direction. At the same time, the arc-shaped contact method can disperse the impact force of the material on the scraper plate 3, reduce the hard friction between the scraper plate 3 and the surface of the return section, reduce the wear risk of the return section surface, and extend the service life of the return section.

[0031] To thoroughly remove residual material from the return section surface and prevent any remaining material from adhering to the surface after scraping by scraper 3, this device is further equipped with a secondary cleaning structure. For example... Figure 1 As shown, the secondary cleaning structure includes a second mounting rod 4 and a cleaning brush 5. The second mounting rod 4 is installed inside the receiving box 1 and is located on the side of the first mounting rod 2 away from the direction of travel of the return section of the belt conveyor. That is, the return section first passes the scraper 3 at the first mounting rod 2 and then passes the cleaning brush 5 at the second mounting rod 4.

[0032] The second mounting rod 4 is also arranged along the width of the return section, with its two ends connected to the opposite inner sidewalls of the receiving box 1 to ensure stable installation. The cleaning brush 5 is fixed to the second mounting rod 4 along its length. The tip of the cleaning brush 5 extends to abut against the lower surface of the return section, and its length matches the length of the second mounting rod 4, covering the entire width of the return section. In actual operation, after the return section passes the scraper 3, most of the material on the surface has been scraped off. The return section then continues to move to the area of ​​the cleaning brush 5. The tip of the cleaning brush 5 contacts the lower surface of the return section. Under the movement of the return section, the bristles of the cleaning brush 5 sweep the surface of the return section, removing any remaining material. The swept material also falls into the receiving box 1, achieving a continuous process of initial scraping and secondary cleaning of the material on the return section surface, improving the thoroughness of the cleaning. Meanwhile, the cleaning brush 5 adopts a flexible bristle structure, which will not cause hard damage to the surface of the return section during the cleaning process, further protecting the return section.

[0033] To enable the recycling and reuse of materials collected in the receiving box 1 and avoid material accumulation requiring manual cleaning, this device incorporates a material conveying structure at the bottom inner interior of the receiving box 1. For example... Figure 2 As shown, the material conveying structure includes a horizontal screw conveyor 6, a vertical screw conveyor 7, and a discharge pipe 8. The horizontal screw conveyor 6 is positioned along the length of the receiving box 1 at its inner bottom, with both ends connected to the opposite inner walls of the receiving box 1. The horizontal screw conveyor 6 has rotatable helical blades inside to propel the material horizontally. One end of the horizontal screw conveyor 6 extends outside the receiving box 1, forming a discharge end, which is connected to the vertical screw conveyor 7. The vertical screw conveyor 7 has its axis arranged vertically and also has helical blades inside to lift the material vertically upwards. The top of the vertical screw conveyor 7 is the discharge end, which is connected to the discharge pipe 8. One end of the discharge pipe 8 is connected to the discharge end of the vertical screw conveyor 7, while the other end's discharge port faces the carrying section of the belt conveyor, allowing the material to fall into the carrying section and rejoin the conveying process.

[0034] When material falls into the receiving box 1, it is collected by gravity to the horizontal screw conveyor 6 at the bottom of the receiving box 1. The horizontal screw conveyor 6 is started, and its internal screw blades rotate, pushing the material towards the discharge end. The material then enters the vertical screw conveyor 7 through the discharge end. Subsequently, the vertical screw conveyor 7 starts, and its internal screw blades rotate, lifting the material vertically upwards until it reaches the discharge end of the vertical screw conveyor 7. The material enters the discharge pipe 8 from the discharge end of the vertical screw conveyor 7, flows along the discharge pipe 8 to the discharge port, and finally falls into the carrying section of the belt conveyor, completing the recycling and reuse of the material. Furthermore, the horizontal screw conveyor 6, located at the bottom of the receiving box 1, can actively transport the material towards the discharge end, preventing material accumulation and blockage within the receiving box 1, and ensuring the continuous collection capacity of the receiving box 1.

[0035] Considering the potential differences in the location of the carrying section among different models of belt conveyors, this device optimizes the connection method between the vertical screw conveyor 7 and the horizontal screw conveyor 6 to ensure accurate alignment of the discharge port of the discharge pipe 8 with the carrying section. Specifically, the vertical screw conveyor 7 is rotatably connected to the discharge end of the horizontal screw conveyor 6 via a rotary joint. For example... Figure 1 As shown, the rotary joint includes a fixed end and a rotating end. The fixed end is fixedly connected to the discharge end of the horizontal screw conveyor 6 and communicates with the internal conveying channel of the horizontal screw conveyor 6. The rotating end is fixedly connected to the feed end of the vertical screw conveyor 7 and communicates with the internal conveying channel of the vertical screw conveyor 7. The rotating end can rotate around the axis of the fixed end, thereby driving the vertical screw conveyor 7 and the discharge pipe 8 to rotate around the axis of the discharge end of the horizontal screw conveyor 6. During installation or adjustment, the operator can use external force to drive the vertical screw conveyor 7 to rotate around the fixed end of the rotary joint according to the actual position of the bearing section until the discharge port of the discharge pipe 8 is aligned with the preset material drop area of ​​the bearing section. During rotation, the fixed end and the rotating end of the rotary joint always maintain a sealed connection to ensure that the material does not leak from the connection point. This structure allows for flexible adjustment of the discharge direction, and can adapt to the bearing section position of different belt conveyors without disassembling and reinstalling the vertical screw conveyor 7, improving the versatility of the device, simplifying the adjustment operation, and reducing downtime during the adjustment process.

[0036] To ensure that the material in the receiving box 1 can be smoothly collected into the horizontal screw conveyor 6 and to prevent the material from accumulating at the edge of the bottom surface of the receiving box 1, this device sets the bottom surface of the receiving box 1 as an inclined structure. Figure 2As shown, the inner bottom surface of the receiving box 1 gradually slopes down from the edge near the side wall towards the inner bottom of the receiving box 1, where the horizontal screw conveyor 6 is located, forming an inclined surface facing the horizontal screw conveyor 6. When material falls into the receiving box 1, it slides downward along the inclined surface under the action of gravity and automatically collects at the horizontal screw conveyor 6. This inclined structure eliminates the horizontal dead corners on the inner bottom surface of the receiving box 1, avoiding the difficulty of cleaning caused by long-term accumulation of material in the edge area, ensuring that all material in the receiving box 1 can be conveyed by the horizontal screw conveyor 6, and improving the integrity of material collection. At the same time, the material automatically collects by gravity, eliminating the need for additional scrapers or pushing devices, simplifying the internal structure of the receiving box 1, and reducing equipment complexity and failure risk.

[0037] For some highly viscous materials, relying solely on gravity guidance from the inclined bottom surface may not completely prevent the material from adhering to it. To solve this problem, this device incorporates a vibrating motor 9 in the inclined area of ​​the bottom surface of the receiving box 1. Figure 2 As shown, the body of the vibrating motor 9 is fixedly connected to the inclined area of ​​the bottom surface of the receiving box 1. The output end of the vibrating motor 9 is in contact with the bottom structure of the receiving box 1, enabling the transmission of vibration energy to the entire inclined bottom surface. When the device is running, the vibrating motor 9 can be started, and the vibration generated by the vibrating motor 9 is transmitted through the bottom surface of the receiving box 1 to the sticky material adhering to the inclined bottom surface. The vibration can break the adhesion between the material and the inclined bottom surface, causing the material to separate from the bottom surface. Under the combined action of gravity and vibration, the separated material slides rapidly along the inclined surface to the horizontal screw conveyor 6, and finally enters the horizontal screw conveyor 6. This structure solves the problem of sticky material adhering to the inclined bottom surface, avoids the blockage of the receiving box 1 caused by long-term accumulation of sticky material, ensures the normal collection function of the receiving box 1, and eliminates the need for manual entry into the receiving box 1 to clean residual material, further reducing maintenance difficulty.

[0038] To ensure that the scraper blade 3 always maintains effective contact with the return section surface, and to prevent damage to the scraper blade 3 or the return section due to protrusions or material agglomeration on the return section surface, this device sets the first mounting rod 2 as a liftable structure, and works in conjunction with the tension elastic element 10 to achieve elastic clamping of the scraper blade 3. Figure 3As shown, the top wall of the receiving box 1 is provided with a vertical guide structure corresponding to the two ends of the first mounting rod 2. This vertical guide structure can be a guide hole or a guide groove. The two ends of the first mounting rod 2 are embedded in the guide structure and can move up and down along the guide structure. A tension elastic element 10 is connected between the two ends of the first mounting rod 2 and the top wall of the receiving box 1. The tension elastic element 10 can be a spring. When the tension elastic element 10 is in a naturally stretched state, it applies an upward force to the first mounting rod 2. In the initial state, the force of the tension elastic element 10 drives the first mounting rod 2 to move upward along the guide structure, causing the top of the scraper 3 to elastically press against the lower surface of the return section. When a protrusion or material agglomerates appear on the surface of the return section, the protrusion or agglomerate contacts the scraper 3 and generates downward pressure. This pressure overcomes the force of the tension elastic element 10, pushing the first mounting rod 2 downward along the guide structure. The scraper 3 moves downward synchronously with the first mounting rod 2, providing space for the protrusion or agglomerate to pass through, preventing the scraper 3 from being damaged by impact or the return section from being scratched. After the protrusion or agglomerate passes, the pulling force of the elastic element 10 drives the first mounting rod 2 to return to its original position, and the scraper plate 3 elastically presses against the return section again, ensuring the continuity of the scraping process. This structure eliminates the need for manual adjustment of the height of the first mounting rod 2, achieving adaptive adjustment, reducing manual intervention, and protecting the scraper plate 3 and the return section, extending their service life.

[0039] After prolonged use, the bristles of the cleaning brush 5 will wear down, increasing the distance between its tip and the return stroke, thus affecting the cleaning effect. To solve this problem, this device incorporates a height-adjustable second mounting rod 4, with height adjustment achieved through a lifting mechanism. Figure 1As shown, the side wall of the receiving box 1 has a vertical mounting structure corresponding to the two ends of the second mounting rod 4. This vertical mounting structure can be a mounting groove or a mounting hole. The two ends of the second mounting rod 4 are connected to the mounting structure and can move up and down along the mounting structure. A lifting adjustment mechanism is provided between the two ends of the second mounting rod 4 and the side wall of the receiving box 1. This lifting adjustment mechanism can be a bolt adjustment mechanism, that is, by cooperating with a bolt and nut, rotating the bolt drives the second mounting rod 4 to rise and fall along the mounting structure. During the initial installation of the cleaning brush 5, the operator operates the lifting adjustment mechanism to drive the second mounting rod 4 up or down, so that the top of the cleaning brush 5 abuts against the lower surface of the return section, ensuring the initial cleaning effect. As the usage time increases, the bristles of the cleaning brush 5 wear down, and the distance between the top and the return section increases. At this time, the operator can operate the lifting adjustment mechanism again to drive the second mounting rod 4 downward until the top of the cleaning brush 5 abuts against the return section again, compensating for the wear of the bristles. If the cleaning brush 5 needs to be replaced, the lifting and adjusting mechanism can be operated to drive the second mounting rod 4 upward, increasing the operating space between the cleaning brush 5 and the collection box 1, making the replacement operation easier. This structure can extend the service life of the cleaning brush 5, avoid the need for replacement due to slight wear of the bristles, reduce maintenance costs, and at the same time, the height of the cleaning brush 5 can be flexibly adjusted according to the thickness of the return section or the cleaning needs, adapting to different usage scenarios.

[0040] During the scraping and cleaning process, the return section may deform slightly due to stress, causing the scraper plate 3 or cleaning brush 5 to fail to make full contact with the surface of the return section, resulting in missed scraping or cleaning areas. To solve this problem, this device is equipped with two pressure rollers 11 to maintain the straightness of the return section. Figure 1 As shown, two pressure rollers 11 are spaced apart above the receiving box 1 along the running direction of the return section of the belt conveyor, and located on the upper side of the return section. One pressure roller 11 is positioned on the side of the scraper 3 closer to the direction of travel of the return section, and the other pressure roller 11 is positioned on the side of the cleaning brush 5 away from the scraper 3. The two ends of the pressure rollers 11 are connected to the receiving box 1 or the fixed structure of the belt conveyor through a connecting structure. The pressure rollers 11 can rotate freely around their own axis, and their outer circumferential surface abuts against the upper surface of the return section, applying downward pressure to the return section.

[0041] During belt conveyor operation, the return section remains straight under the pressure of the upper pressure roller 11. As the return section moves towards the scraper 3, it first passes the pressure roller 11 on one side near the scraper 3. This pressure roller 11 ensures that the return section remains straight before entering the scraping area, allowing the top of the scraper 3 to fully contact the surface of the return section and preventing localized missed scraping due to deformation of the return section. The return section then passes the cleaning brush 5 area to remove residual material. After cleaning, the return section continues to move to the pressure roller 11 on the side away from the scraper 3. This pressure roller 11 continues to maintain the straightness of the return section, ensuring thorough cleaning and maintaining the stability of subsequent operation. Furthermore, the pressure roller 11 rotates synchronously around its own axis as the return section moves, converting the sliding friction between the pressure roller 11 and the return section into rolling friction, reducing wear on the surface of the return section and further extending its service life.

[0042] In summary, this device achieves initial scraping and collection of materials through the basic structure of the receiving box 1, the first mounting rod 2, and the scraper 3; improves scraping smoothness and protects the return section through the arc-shaped scraper surface 31; achieves secondary cleaning through the second mounting rod 4 and the cleaning brush 5, improving the thoroughness of cleaning; achieves material recycling and reuse through the horizontal screw conveyor 6, the vertical screw conveyor 7, and the discharge pipe 8; allows flexible adjustment of the discharge direction through the rotary joint; ensures smooth material collection through the inclined inner bottom surface and the vibrating motor 9; achieves adaptive clamping of the scraper 3 through the lifting structure of the first mounting rod 2 and the tension elastic element 10; compensates for wear of the cleaning brush 5 through the lifting adjustment mechanism of the second mounting rod 4; and keeps the return section straight through the pressure roller 11. The above structures work together to form a complete closed loop of scraping, cleaning, collection, and recycling, effectively solving the problems of pollution, loss, and equipment failure caused by material adhesion in the return section. It also features convenient maintenance, strong versatility, and long service life, making it suitable for the return section cleaning needs of various belt conveyors.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cleaning and recycling device for a belt conveyor, used to be installed below the return section of the belt conveyor, characterized in that, include: The receiving box (1) is located below the return section of the belt conveyor and is used to collect the material scraped off from the return section of the belt conveyor. The first mounting rod (2) is set inside the receiving box (1) along the width direction of the return section of the belt conveyor; The scraper (3) is detachably fixed to the first mounting rod (2) along the length direction of the first mounting rod (2), and the top of the scraper (3) is used to abut against the return section of the belt conveyor to scrape off the material attached to the return section of the belt conveyor.

2. The cleaning and recycling device for a belt conveyor according to claim 1, characterized in that, The scraper (3) has an arc-shaped scraping surface (31) on the side facing the return section of the belt conveyor.

3. The cleaning and recycling device for a belt conveyor according to claim 1, characterized in that, Also includes: The second mounting rod (4) is located inside the receiving box (1) and is located on the side of the first mounting rod (2) away from the direction of travel of the return section of the belt conveyor. Cleaning brush (5) is arranged on the second mounting rod (4) along the length direction of the second mounting rod (4), and the top of the cleaning brush (5) is used to abut against and sweep the material remaining in the return section of the belt conveyor.

4. The cleaning and recycling device for a belt conveyor according to claim 1, characterized in that, The inner bottom of the receiving box (1) is provided with a horizontal screw conveyor (6), the discharge end of the horizontal screw conveyor (6) is connected to a vertical screw conveyor (7), the discharge end of the vertical screw conveyor (7) is connected to a discharge pipe (8), and the discharge port of the discharge pipe (8) faces the bearing section of the belt conveyor.

5. A cleaning and recycling device for a belt conveyor according to claim 4, characterized in that, The vertical screw conveyor (7) is rotatably connected to the discharge end of the horizontal screw conveyor (6) via a rotary joint.

6. A cleaning and recycling device for a belt conveyor according to claim 4, characterized in that, The inner bottom surface of the receiving box (1) is inclined, and the inclined direction is towards the inner bottom of the receiving box (1), which is used to guide the material in the receiving box (1) to the horizontal screw conveyor (6).

7. A cleaning and recycling device for a belt conveyor according to claim 6, characterized in that, The inclined area on the bottom of the receiving box (1) is provided with a vibration motor (9) for driving the receiving box (1) to vibrate so that the material enters the horizontal screw conveyor (6).

8. A cleaning and recycling device for a belt conveyor according to claim 1, characterized in that, The first mounting rod (2) is vertically connected to the receiving box (1). Both ends of the first mounting rod (2) are connected to the top wall of the receiving box (1) with tension elastic elements (10). The tension elastic elements (10) are used to pull the first mounting rod (2) upward so that the scraper (3) elastically abuts against the return section of the belt conveyor.

9. A cleaning and recycling device for a belt conveyor according to claim 3, characterized in that, The second mounting rod (4) is connected to the receiving box (1) in a lifting manner. Both ends of the second mounting rod (4) are provided with lifting adjustment mechanisms between them and the side wall of the receiving box (1). The lifting adjustment mechanisms are used to drive the second mounting rod (4) to lift and lower, so as to adjust the distance between the cleaning brush (5) and the return section of the belt conveyor.

10. A cleaning and recycling device for a belt conveyor according to claim 3, characterized in that, Also includes: Two pressure rollers (11) are spaced above the receiving box (1) along the running direction of the return section of the belt conveyor and located on the upper side of the return section of the belt conveyor. One of the belt pressing rollers (11) is located on the side of the scraper plate (3) near the direction of travel of the return section of the belt conveyor, and the other belt pressing roller (11) is located on the side of the cleaning brush (5) away from the scraper plate (3).

Images