A feed buffering device and buffering method for a belt conveyor

Abstract

The application provides a feeding buffer device and buffer method for a belt conveyor, and belongs to the technical field of material conveyors. The device comprises a buffer plate, which is inclined downward along the conveying direction of the belt conveyor, and is provided with a plurality of discharge grooves along the conveying direction of the belt conveyor. A discharge chute is arranged on the side of the buffer plate away from the conveying direction. A driving mechanism is configured to control the downward or upward overturning of the buffer plate according to the gravity of the buffer plate. The application integrates the functions of buffering, flow splitting and flow guiding in a compact device, and has a simple and reasonable structure, without the need for a complex power source. The application realizes efficient buffering and uniform material distribution in a mechanical and automated manner, and is reliable and low in cost.

Description

Technical Field

[0001] This application belongs to the field of material conveyor technology, specifically relating to a feeding buffer device and buffering method for belt conveyors. Background Technology

[0002] Belt conveyors, as efficient and continuous material conveying equipment, are widely used in many industrial fields such as mining, metallurgy, chemical industry, power, ports, and grain processing. Their working principle involves a circular conveyor belt carrying and transporting materials, offering significant advantages such as high conveying capacity, long conveying distance, simple structure, and convenient maintenance. However, in the entire belt conveyor system, the feeding stage is the starting point of the entire material transfer process and also one of the most critical and problematic stages. The smoothness of the feeding process directly affects the efficiency, energy consumption, equipment lifespan, and operating costs of the entire conveying system.

[0003] In existing technologies, belt conveyors typically receive materials from upstream equipment (such as feeders, crushers, another conveyor, or silo outlets) via chutes, discharge pipes, or other devices. Ideally, the material should fall smoothly onto the belt at a speed and direction roughly aligned with its direction of travel. However, in actual operation, this ideal is often difficult to achieve due to design limitations, space constraints, or process complexity. A core problem prevalent in current technologies is insufficient buffering in the feeding area, leading to excessive impact of the material on the conveyor belt.

[0004] This impact is specifically manifested in the following aspects:

[0005] First, the vertical drop and horizontal velocity difference of the material are the root causes of the impact. An unavoidable height difference exists between the upstream equipment's discharge port and the downstream receiving conveyor belt. After leaving the upstream equipment, the material accelerates downwards under gravity, gaining enormous vertical velocity and kinetic energy. When this high-speed material flow directly impacts the horizontally running conveyor belt at a large angle, a strong collision occurs. This impact not only generates significant noise but also causes severe chipping, cutting, and abrasion of the conveyor surface, especially at joints, due to material (especially large, sharp pieces of ore or slag), significantly shortening the belt's lifespan. Simultaneously, the immense impact force can easily cause excessive belt sag and misalignment between the idlers, and may even lead to catastrophic failures such as longitudinal belt tearing.

[0006] Secondly, the impact causes significant material splashing and dust pollution. Upon impact with the conveyor belt, the material's kinetic energy is released rapidly, causing a large number of particles, especially powdery materials, to fly in all directions. This not only results in material loss but also causes severe dust pollution, deteriorating the working environment, endangering the health of operators, and failing to meet increasingly stringent environmental protection requirements. Solving the dust problem usually requires strengthening the sealing and adding a dust collection system, which further increases the complexity of the equipment and the investment and operating costs.

[0007] Furthermore, the negative impact of impacts on the stability and efficiency of conveyor operation cannot be ignored. Strong impacts cause severe belt vibrations, which are transmitted to the entire conveyor frame structure and idlers, accelerating fatigue damage to various components and leading to problems such as loose bolts and cracked supports. In addition, impacts can cause uneven material distribution on the belt, resulting in accumulation or slant to one side, further exacerbating belt misalignment and increasing operating resistance and energy consumption. In severe cases, continuous misalignment and vibration can trigger protective devices to shut down the system, affecting the continuity and stability of the entire production process.

[0008] Therefore, it is necessary to develop a solution to alleviate or even solve the problem of feed buffering. Summary of the Invention

[0009] This application aims to at least solve one of the aforementioned technical problems existing in the prior art. To this end, in a first aspect, this application provides a feed buffer device for a belt conveyor, capable of alleviating or even solving the problem of feed buffering.

[0010] Secondly, this application provides a buffering method applied to the above-mentioned feeding buffer device for belt conveyors.

[0011] A feed buffer device for a belt conveyor according to an embodiment of the first aspect of this application includes:

[0012] A buffer plate is rotatably mounted at the feed end of the belt conveyor and located above the conveyor belt of the belt conveyor. The buffer plate is inclined downward along the conveying direction of the belt conveyor, and the buffer plate is provided with multiple discharge troughs along the conveying direction of the belt conveyor. A discharge chute is provided on the side of the buffer plate opposite to the conveying direction of the discharge trough.

[0013] A drive mechanism connected to the buffer plate, the drive mechanism being configured to control the buffer plate to flip downwards or upwards based on the gravity of the buffer plate.

[0014] The feed buffer device for a belt conveyor according to the embodiments of this application has at least the following beneficial effects:

[0015] In this embodiment, the buffer plate can flip downwards under material impact, absorbing and dissipating the impact kinetic energy of the material through its own rotational displacement. This achieves a fundamental shift from "hard collision" to "soft buffering," significantly reducing the direct impact on the conveyor belt. The design of multiple discharge chutes and discharge sluices can orderly divide a concentrated, high-flow material stream into multiple smaller streams, spreading them onto the conveyor belt in batches and in a staggered manner. This effectively avoids concentrated accumulation and uneven loading of material on the belt, reducing the risk of belt misalignment from the source. Integrating buffering, diversion, and guiding functions into a compact device, the structure is simple and reasonable, requiring no complex power source. It achieves efficient buffering and uniform material distribution through mechanical automation, which is reliable and cost-effective.

[0016] According to some embodiments of this application, the drive mechanism includes an angle sensor, a controller, and an electric push rod;

[0017] The angle sensor is located at the pivot of the buffer plate and is used to detect the tilt angle of the buffer plate in real time.

[0018] The cylinder of the electric push rod is hinged to the frame of the belt conveyor, and the end of the push rod is hinged to the back of the buffer plate.

[0019] The controller is electrically connected to the angle sensor and the electric push rod, and is configured to: receive the angle signal from the angle sensor; and when the angle at which the buffer plate flips down due to material impact is lower than a preset angle threshold, control the electric push rod to extend and push the buffer plate upward to reset to the initial working angle.

[0020] According to some embodiments of this application, the controller is further configured to execute an adaptive control strategy: dynamically adjusting the response speed and reset force of the electric push rod based on the downward speed or frequency of the buffer plate detected by the angle sensor; when the downward speed is fast or the downward frequency is high, increasing the response speed and output thrust of the electric push rod to cope with high flow or high impact conditions.

[0021] According to some embodiments of this application, the driving mechanism is a hydraulic drive system, including a hydraulic cylinder, an accumulator, and a relief valve;

[0022] The cylinder body of the hydraulic cylinder is hinged to the belt conveyor frame, and the end of the piston rod is hinged to the back of the buffer plate.

[0023] The accumulator is connected to the rodless chamber of the hydraulic cylinder via an oil circuit, providing elastic support for the buffer plate;

[0024] The overflow valve is installed in the oil line connecting the rodless chamber of the hydraulic cylinder, and its set pressure corresponds to the maximum support force required by the buffer plate. When the impact force of the material exceeds the set value, the hydraulic oil can open the overflow valve to release pressure, causing the buffer plate to flip down to achieve buffering.

[0025] According to some embodiments of this application, the angle between the discharge chute and the horizontal plane is greater than the angle between the buffer plate body and the horizontal plane, and the end of the discharge chute extends to a position close to but not in contact with the surface of the conveyor belt, forming a material acceleration and guiding section.

[0026] According to some embodiments of this application, the wall of the feeding trough is a concave arc-shaped surface, and the radius of curvature of the arc-shaped surface is configured to guide the material to converge toward the central area of ​​the conveyor belt in order to correct the material segregation and deviation trend.

[0027] According to some embodiments of this application, the back of the buffer plate is provided with reinforcing ribs corresponding to the area of ​​each of the feeding troughs. The direction of the reinforcing ribs is consistent with the flow direction of the material, so as to ensure structural rigidity while avoiding the formation of a material accumulation platform.

[0028] According to some embodiments of this application, the feed buffer device is provided with a plurality of buffer plates.

[0029] According to some embodiments of this application, the width of the discharge trough gradually increases along the conveying direction of the belt conveyor.

[0030] The feeding buffer method for a belt conveyor according to the second aspect of this application, applied to the above-mentioned feeding buffer device for a belt conveyor, includes:

[0031] Adjust the initial tilt angle of the buffer plate according to the material characteristics;

[0032] During the feeding process, the tilt angle of the buffer plate is increased or decreased according to the impact force of the material.

[0033] Additional aspects and advantages of this application will be set forth in part in the description which follows, and some of these additional aspects and advantages will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0034] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0035] Fig. 1 This is a schematic diagram illustrating the structural layout principle of this application;

[0036] Fig. 2 A schematic diagram of the upper surface structure of a buffer plate;

[0037] Fig. 3 This is a schematic diagram of the bottom structure of a buffer plate. Detailed Implementation

[0038] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0039] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0040] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0041] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0042] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Belt conveyors, as efficient and continuous material conveying equipment, are widely used in many industrial fields such as mining, metallurgy, chemical industry, power, ports, and grain processing. Their working principle involves a circular conveyor belt carrying and transporting materials, offering significant advantages such as high conveying capacity, long conveying distance, simple structure, and convenient maintenance. However, in the entire belt conveyor system, the feeding stage is the starting point of the entire material transfer process and also one of the most critical and problematic stages. The smoothness of the feeding process directly affects the efficiency, energy consumption, equipment lifespan, and operating costs of the entire conveying system.

[0044] In existing technologies, belt conveyors typically receive materials from upstream equipment (such as feeders, crushers, another conveyor, or silo outlets) via chutes, discharge pipes, or other devices. Ideally, the material should fall smoothly onto the belt at a speed and direction roughly aligned with its direction of travel. However, in actual operation, this ideal is often difficult to achieve due to design limitations, space constraints, or process complexity. A core problem prevalent in current technologies is insufficient buffering in the feeding area, leading to excessive impact of the material on the conveyor belt.

[0045] This impact is specifically manifested in the following aspects:

[0046] First, the vertical drop and horizontal velocity difference of the material are the root causes of the impact. An unavoidable height difference exists between the upstream equipment's discharge port and the downstream receiving conveyor belt. After leaving the upstream equipment, the material accelerates downwards under gravity, gaining enormous vertical velocity and kinetic energy. When this high-speed material flow directly impacts the horizontally running conveyor belt at a large angle, a strong collision occurs. This impact not only generates significant noise but also causes severe chipping, cutting, and abrasion of the conveyor surface, especially at joints, due to material (especially large, sharp pieces of ore or slag), significantly shortening the belt's lifespan. Simultaneously, the immense impact force can easily cause excessive belt sag and misalignment between the idlers, and may even lead to catastrophic failures such as longitudinal belt tearing.

[0047] Secondly, the impact causes significant material splashing and dust pollution. Upon impact with the conveyor belt, the material's kinetic energy is released rapidly, causing a large number of particles, especially powdery materials, to fly in all directions. This not only results in material loss but also causes severe dust pollution, deteriorating the working environment, endangering the health of operators, and failing to meet increasingly stringent environmental protection requirements. Solving the dust problem usually requires strengthening the sealing and adding a dust collection system, which further increases the complexity of the equipment and the investment and operating costs.

[0048] Furthermore, the negative impact of impacts on the stability and efficiency of conveyor operation cannot be ignored. Strong impacts cause severe belt vibrations, which are transmitted to the entire conveyor frame structure and idlers, accelerating fatigue damage to various components and leading to problems such as loose bolts and cracked supports. In addition, impacts can cause uneven material distribution on the belt, resulting in accumulation or slant to one side, further exacerbating belt misalignment and increasing operating resistance and energy consumption. In severe cases, continuous misalignment and vibration can trigger protective devices to shut down the system, affecting the continuity and stability of the entire production process.

[0049] Therefore, it is necessary to develop a solution to alleviate or even solve the problem of feed buffering.

[0050] This application provides a feed buffer device for belt conveyors, which can alleviate or even solve the problem of feed buffering.

[0051] Reference Figs. 1 to 3 In some embodiments of this application, the feed buffer device for a belt conveyor includes:

[0052] A buffer plate 100 is rotatably mounted at the feed end of the belt conveyor and located above the conveyor belt of the belt conveyor. The buffer plate 100 is inclined downward along the conveying direction of the belt conveyor, and the buffer plate 100 is provided with multiple discharge troughs 101 along the conveying direction of the belt conveyor. A discharge chute 102 is provided on the side of the buffer plate 100 away from the conveying direction of the discharge trough 101.

[0053] A drive mechanism 200 is connected to a buffer plate 100 and is configured to control the buffer plate 100 to flip downward or upward according to the gravity of the buffer plate 100.

[0054] During operation, the material directly impacts the buffer plate 100 and slides down along its inclined direction. As it slides down the surface of the buffer plate 100, some material is discharged from the discharge trough 101, effectively buffering the impact while maintaining the discharge speed and preventing material accumulation on the buffer plate 100. Simultaneously, as the amount of material on the buffer plate 100 increases, the drive mechanism 200 controls the buffer plate 100 to tilt downwards, increasing the inclination angle and improving the discharge speed.

[0055] In this embodiment, the buffer plate 100 can flip downwards under material impact, absorbing and dissipating the impact kinetic energy of the material through its own rotational displacement. This achieves a fundamental shift from "hard collision" to "soft buffering," significantly reducing the direct impact on the conveyor belt. The design of multiple discharge troughs 101 and discharge sluices 102 can orderly divide a concentrated, high-flow material stream into multiple smaller material streams, spreading them onto the conveyor belt in batches and in a staggered manner. This effectively avoids concentrated accumulation and uneven loading of materials on the belt, reducing the risk of belt misalignment from the source. Integrating buffering, diversion, and guiding functions into a compact device, the structure is simple and reasonable, requiring no complex power source. It achieves efficient buffering and uniform material distribution through mechanical automation, which is reliable and cost-effective.

[0056] In some embodiments of this application, the drive mechanism 200 includes an angle sensor, a controller, and an electric actuator;

[0057] An angle sensor is installed at the pivot of the buffer plate 100 to detect the tilt angle of the buffer plate 100 in real time.

[0058] The cylinder of the electric push rod is hinged to the frame of the belt conveyor, and the end of its push rod is hinged to the back of the buffer plate 100.

[0059] The controller is electrically connected to the angle sensor and the electric push rod, and is configured to: receive the angle signal from the angle sensor, and when it is detected that the angle at which the buffer plate 100 flips down due to the impact of the material is lower than the preset angle threshold, control the electric push rod to extend and push the buffer plate 100 upward to reset to the initial working angle.

[0060] In this embodiment, the electric push rod is mainly used to prevent a sudden increase in material from causing the buffer plate 100 to overturn excessively due to impact, thus losing its buffering effect. Simultaneously, through closed-loop control of the angle sensor, controller, and electric push rod, the tilt angle of the buffer plate 100 can be monitored and precisely controlled in real time, ensuring it always operates within the optimal working angle range, resulting in stable and controllable buffering performance. Once a single impact ends, the drive mechanism 200 automatically resets the buffer plate 100 to the preset initial angle, preparing it for the next material impact. This achieves automated and uninterrupted operation of the device without manual intervention. The establishment of this electronic control system provides the hardware foundation for subsequent implementation of more complex adaptive control strategies, giving the device the potential for intelligence.

[0061] In some embodiments of this application, the controller is also configured to execute an adaptive control strategy: dynamically adjust the response speed and reset force of the electric push rod according to the downward speed or frequency of the buffer plate 100 detected by the angle sensor; when the downward speed is fast or the downward frequency is high, increase the response speed and output thrust of the electric push rod to cope with the working conditions of large flow or large impact.

[0062] This embodiment dynamically adjusts response parameters based on the descent speed and frequency, enabling the device to "sense" the material flow rate and impact force. For high-flow, high-impact conditions, it provides stronger support and faster reset, preventing the buffer plate 100 from being "crushed." For low-flow conditions, it responds more gently, saving energy and reducing wear. This adaptive control ensures that the device provides near-optimal buffering under any conditions, while simultaneously providing optimal protection for its own structure and downstream conveyors, improving the adaptability and service life of the entire system.

[0063] In some embodiments of this application, the drive mechanism 200 is a hydraulic drive system, including a hydraulic cylinder, an accumulator, and a relief valve;

[0064] The cylinder body of the hydraulic cylinder is hinged to the belt conveyor frame, and the end of the piston rod is hinged to the back of the buffer plate 100.

[0065] The accumulator is connected to the rodless chamber of the hydraulic cylinder through an oil circuit, providing elastic support for the buffer plate 100;

[0066] The relief valve is installed in the oil line connecting the rodless chamber of the hydraulic cylinder, and its set pressure corresponds to the maximum support force required by the buffer plate 100. When the impact force of the material exceeds the set value, the hydraulic oil can open the relief valve to release pressure, causing the buffer plate 100 to flip down to achieve buffering.

[0067] The structure of this embodiment provides a smooth and continuous elastic buffer, with no impact or noise during the buffering process. The relief valve constitutes a robust overload protection mechanism. When encountering extreme impacts (such as large foreign objects), the system can release pressure to allow the buffer plate to tilt downwards significantly, effectively preventing mechanical damage to the device and ensuring extremely high reliability. This hydraulic system does not consume external electrical energy during normal operation, relying solely on fluid pressure and the potential energy of the accumulator, making it particularly suitable for harsh industrial environments where power supply is inconvenient or explosion-proof requirements are high.

[0068] In some embodiments of this application, the angle between the discharge chute 102 and the horizontal plane is greater than the angle between the buffer plate 100 body and the horizontal plane, and the end of the discharge chute 102 extends to a position close to but not in contact with the conveyor belt surface, forming a material acceleration and guiding section. The discharge chute 102 provides the material with a forward acceleration, making its horizontal velocity component when leaving the buffer plate 100 closer to the belt's running speed. This greatly reduces the relative velocity difference between the material and the belt, thereby minimizing the final secondary impact and relative sliding friction, further protecting the belt surface.

[0069] In some embodiments of this application, the wall of the feed trough 101 is a concave arc-shaped surface. The radius of curvature of this arc-shaped surface is configured to guide the material towards the central area of ​​the conveyor belt, thereby correcting material segregation and deviation tendencies. The concave arc-shaped trough wall generates a guiding force on the passing material, converging it towards the center. This design can automatically correct any segregation or eccentricity that may occur in the previous stage, ensuring that the material is evenly distributed in the central area of ​​the belt, effectively preventing belt deviation and edge spillage problems caused by uneven material distribution.

[0070] Reference Fig. 2 and Fig. 3 In some embodiments of this application, a reinforcing rib 103 is provided on the back side of the buffer plate 100 corresponding to the area of ​​each feeding trough 101. The direction of the reinforcing rib 103 is consistent with the flow direction of the material, so as to ensure structural rigidity while avoiding the formation of material accumulation platforms. The directional reinforcing rib 103 of this embodiment greatly enhances the structural strength and fatigue resistance of the buffer plate 100 under repeated impacts, preventing its deformation or cracking. At the same time, the smooth design consistent with the material flow direction avoids the formation of steps or platforms, fundamentally eliminating the adhesion and accumulation of materials (especially wet and sticky materials) on the back side, ensuring the responsiveness and reliability of the buffer plate 100.

[0071] In some embodiments of this application, the feed buffer device is provided with multiple buffer plates 100 to achieve multi-level buffering.

[0072] In some embodiments of this application, the width of the discharge chute 101 gradually increases along the conveying direction of the belt conveyor. It is understood that materials will slide down along the inclined direction of the buffer plate 100. In this embodiment, by increasing the width of the discharge chute 101, the discharge efficiency can be gradually improved.

[0073] In addition, in some embodiments, this application also proposes a feeding buffer method for a belt conveyor, applied to the aforementioned feeding buffer device for a belt conveyor, comprising:

[0074] Adjust the initial tilt angle of the buffer plate 100 according to the material characteristics;

[0075] During the feeding process, the tilt angle of the buffer plate 100 is increased or decreased according to the impact force of the material.

[0076] The buffering method of this embodiment can adjust the tilt angle of the buffer plate 100 according to the material characteristics, taking into account both material feeding buffering and material unloading efficiency.

[0077] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A feeding buffer device for a belt conveyor, characterized in that, include: A buffer plate is rotatably mounted at the feed end of the belt conveyor and located above the conveyor belt of the belt conveyor. The buffer plate is inclined downward along the conveying direction of the belt conveyor, and the buffer plate is provided with multiple discharge troughs along the conveying direction of the belt conveyor. A discharge chute is provided on the side of the buffer plate opposite to the conveying direction of the discharge trough. A drive mechanism connected to the buffer plate, the drive mechanism being configured to control the buffer plate to flip downwards or upwards according to the gravity of the buffer plate; The drive mechanism includes an angle sensor, a controller, and an electric push rod. The angle sensor is located at the pivot of the buffer plate and is used to detect the tilt angle of the buffer plate in real time. The cylinder of the electric push rod is hinged to the frame of the belt conveyor, and the end of its push rod is hinged to the back of the buffer plate. The controller is electrically connected to the angle sensor and the electric push rod and is configured to: receive the angle signal from the angle sensor; and when the angle at which the buffer plate tilts downward due to material impact is lower than a preset angle threshold, control the electric push rod to extend and push the buffer plate upward to reset to the initial working angle.

2. The feeding buffer device for a belt conveyor according to claim 1, characterized in that, The controller is also configured to execute an adaptive control strategy: dynamically adjust the response speed and reset force of the electric push rod based on the downward speed or frequency of the buffer plate detected by the angle sensor. When the downward speed is fast or the downward frequency is high, the response speed and output thrust of the electric actuator are increased to cope with the working conditions of large flow or large impact.

3. The feeding buffer device for a belt conveyor according to claim 1, characterized in that, The drive mechanism is a hydraulic drive system, including a hydraulic cylinder, an accumulator, and a relief valve; The cylinder body of the hydraulic cylinder is hinged to the belt conveyor frame, and the end of the piston rod is hinged to the back of the buffer plate. The accumulator is connected to the rodless chamber of the hydraulic cylinder via an oil circuit, providing elastic support for the buffer plate; The overflow valve is installed in the oil line connecting the rodless chamber of the hydraulic cylinder, and its set pressure corresponds to the maximum support force required by the buffer plate. When the impact force of the material exceeds the set value, the hydraulic oil can open the overflow valve to release pressure, causing the buffer plate to flip down to achieve buffering.

4. The feeding buffer device for a belt conveyor according to claim 1, characterized in that, The angle between the discharge chute and the horizontal plane is greater than the angle between the buffer plate body and the horizontal plane, and the end of the discharge chute extends to a position close to but not in contact with the surface of the conveyor belt, forming a material acceleration and guiding section.

5. The feeding buffer device for a belt conveyor according to claim 1, characterized in that, The wall of the feeding trough is a concave arc-shaped surface. The radius of curvature of the arc-shaped surface is configured to guide the material to converge towards the center area of ​​the conveyor belt, so as to correct the material segregation and deviation trend.

6. The feeding buffer device for a belt conveyor according to claim 1, characterized in that, The back of the buffer plate is provided with reinforcing ribs corresponding to the area of ​​each feeding trough. The direction of the reinforcing ribs is consistent with the flow direction of the material, so as to ensure structural rigidity and avoid the formation of a material accumulation platform.

7. The feeding buffer device for a belt conveyor according to claim 1, characterized in that, The feeding buffer device is equipped with multiple buffer plates.

8. The feeding buffer device for a belt conveyor according to claim 1, characterized in that, Along the conveying direction of the belt conveyor, the width of the discharge chute gradually increases.

9. A feeding buffer method for a belt conveyor, characterized in that, The feed buffer device for a belt conveyor according to any one of claims 1 to 8 comprises: Adjust the initial tilt angle of the buffer plate according to the material characteristics; During the feeding process, the tilt angle of the buffer plate is increased or decreased according to the impact force of the material.

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