Anti-blocking mechanism of belt conveyor

Abstract

The utility model discloses an anti-blocking mechanism of a belt conveyor, which belongs to the field of material conveying and comprises a fixed frame, and the belt conveyor is arranged on one side of the fixed frame. The fixed frame is provided with a transshipment funnel through which materials can pass and a sand box for temporarily storing the materials, the sand box is vertically placed on the outer side of the transshipment funnel, and one side of an opening of the sand box faces the feeding direction of the conveyor; the sand box is vertically placed outside the transfer funnel, the opening face of the sand box faces the feeding direction of the conveyor, the sand box can effectively buffer the flow change when materials enter the funnel, the situation that the materials enter the transfer funnel too much and too fast is avoided, and the blocking risk is reduced. And after being temporarily stored in the sand box, the materials can uniformly flow into the funnel, so that the flowing stability and smoothness of the materials are ensured, and the stability and the overall working efficiency of a belt conveyor system are improved.

Description

Technical Field

[0001] This utility model belongs to the field of material conveying, specifically an anti-blocking mechanism for belt conveyors. Background Technology

[0002] Belt conveyors are widely used in industries such as mining, metallurgy, chemical engineering, and construction for transporting bulk cargo, serving as crucial equipment for material handling. A belt conveyor system typically consists of a conveyor belt, drive unit, rollers, and turning devices. The transfer hopper, as a transfer device connecting different belt conveyors, plays a vital role in transferring materials from one conveyor to another. However, in actual use, due to the characteristics of material flow, transfer hoppers frequently face problems such as material accumulation and blockage, severely impacting the stability and operating efficiency of the conveying system.

[0003] In traditional belt conveyor systems, the design of the transfer hopper is typically quite simple, relying mainly on the shape and inclination angle of its inner wall to ensure smooth material passage. However, during actual conveying, factors such as the type, particle size, and viscosity of the material often cause material to accumulate within the hopper. This is especially true in environments conveying high-flow-rate or highly viscous materials, where material tends to stagnate at the bottom or corners of the hopper, forming dead zones or blockages. In such cases, the material cannot pass smoothly, easily leading to equipment downtime and reduced production efficiency.

[0004] Furthermore, traditional transfer funnel designs fail to consider the matching of material flow characteristics with equipment structure when handling different materials. When material enters the funnel at excessively high or low speeds, it often fails to smoothly transition to the downstream belt conveyor. This uneven material flow easily leads to funnel blockage and material overflow, further increasing maintenance costs and system downtime. Therefore, effectively solving the problems of material accumulation and blockage in transfer funnels has become a critical technical challenge that urgently needs to be addressed in current belt conveyor technology. Utility Model Content

[0005] Due to the characteristics of material flow, transfer hoppers often face problems such as material accumulation and blockage, which seriously affect the stability and operating efficiency of the conveying system. Therefore, an anti-blockage mechanism for belt conveyors is provided.

[0006] This utility model is achieved through the following technical solution: a belt conveyor anti-clogging mechanism includes a fixed frame, on one side of which a belt conveyor is mounted; the fixed frame is equipped with a transfer funnel for material passage and a sandbox for temporary material storage, the sandbox being vertically placed outside the transfer funnel with its opening facing the material inflow direction of the conveyor; by placing the sandbox vertically outside the transfer funnel with its opening facing the material inflow direction of the conveyor, the sandbox can effectively buffer the flow rate changes when material enters the funnel, preventing excessive or rapid material entry into the transfer funnel and reducing the risk of clogging. After being temporarily stored in the sandbox, the material can flow evenly into the funnel, ensuring the stability and smoothness of the material flow, thereby improving the stability and overall working efficiency of the belt conveyor system.

[0007] A further improvement of this invention is that a liner is provided on the inner wall of the transfer funnel, located at the lower part of the sand box. The liner effectively protects the inner wall of the transfer funnel from direct impact and wear from materials, extending the service life of the equipment. Especially when the material flow is large, the liner effectively reduces wear, preventing damage to the inner wall and thus reducing the frequency of funnel maintenance and replacement. The liner also guides the material flow, ensuring smooth passage and preventing accumulation within the funnel, further preventing blockages.

[0008] A further improvement of this utility model is that the liner has an arc-shaped structure; the arc-shaped liner can effectively disperse the impact force of the material, making the material flow more stable.

[0009] A further improvement of this invention includes a pressure sensor mounted on the fixed frame and located at the lower part of the transfer funnel. The pressure sensor can monitor the accumulation of material in the transfer funnel in real time. When the material accumulates to a certain level in the funnel, the pressure sensor detects the pressure change and issues an alarm signal. This sensor helps to promptly detect material accumulation problems, avoids large-scale material blockages, ensures the stable operation of the conveying system, and reduces the risk of equipment failure and downtime.

[0010] A further improvement of this utility model is that it also includes a nozzle, which is disposed at the intersection of the material receiving surface and the two sides of the transfer funnel; the nozzle reduces the friction between the material and the inner wall of the funnel by spraying water, prevents material accumulation, ensures that the material can pass through the funnel smoothly, and avoids blockage.

[0011] A further improvement of this invention is that a water pipe is externally connected to the nozzle; the water pipe connects to the nozzle, ensuring a continuous water supply during operation and enhancing the nozzle's ability to clean up material buildup. The water pipe design guarantees sufficient water flow, allowing the nozzle to function effectively, cleaning the inner wall of the funnel and preventing material adhesion. The continuous spraying of water effectively improves the system's anti-clogging performance, ensuring smooth conveying.

[0012] A further improvement of this invention includes a vibrator installed at the discharge port of the transfer funnel. The vibrator's installation position at the discharge port of the transfer funnel allows it to clean up accumulated material within the funnel through vibration, preventing blockages. The vibrator provides effective vibrational force when material accumulates, ensuring smooth flow of material through the discharge port and preventing blockages.

[0013] A further improvement of this invention includes a controller, which is electrically connected to the pressure sensor and the vibrator. This electrical connection enables automated and intelligent control. By monitoring the pressure sensor data in real time, the controller can promptly determine the material accumulation situation and automatically activate the vibrator to clear the accumulated material. This control system effectively reduces manual intervention, ensuring the system can react quickly under different operating conditions and preventing blockages.

[0014] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: The anti-clogging mechanism for belt conveyors of this invention effectively solves the problem of easy accumulation and blockage of bulk materials during belt conveying by setting a transfer funnel and a sand box on a fixed frame. The sand box is placed vertically on the outside of the transfer funnel, with its opening facing the material inflow direction of the conveyor, and its design can achieve the function of buffering and temporarily storing materials. The setting of the sand box ensures that when materials enter the transfer funnel, they can first pass through the sand box for buffering, avoiding excessively fast or excessive material flow when directly entering the funnel, which would lead to blockage and accumulation in the funnel. The design of this structure makes the material flow more stable, effectively preventing the accumulation of materials in the transfer funnel, avoiding the occurrence of funnel blockage, thereby improving the stability and operating efficiency of the belt conveyor system, and reducing equipment failure and maintenance costs. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0017] Figure 2 This is a flowchart illustrating the usage of a specific embodiment of this utility model.

[0018] In the attached diagram: 1. Fixed frame; 2. Transfer funnel; 3. Sandbox; 4. Pressure sensor; 5. Nozzle; 6. Vibrator; 7. Controller; 8. Liner; 9. Belt; 10. Roller. Detailed Implementation

[0019] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0020] refer to Figure 1 and 2As shown, this utility model discloses an anti-clogging mechanism for belt conveyors, aiming to solve the technical problem of equipment downtime and reduced production efficiency caused by material accumulation and blockage in traditional belt conveyor transfer hoppers. The anti-clogging mechanism includes a fixed frame 1, with a belt conveyor mounted on one side of the frame 1. The belt conveyor includes a belt 9, rollers 10, and an external power mechanism for conveying raw materials. A transfer hopper 2 is mounted on the fixed frame 1 to achieve stable material transfer. A sandbox 3 is used in conjunction with the transfer hopper 2. Material from the upstream conveyor first fills the small compartments inside the sandbox 3. Subsequent material impacts and abrades the material already inside the sandbox 3, achieving a "material-on-material" function, transforming the impact and abrasion between the material and the liner into impact and abrasion between materials. Simultaneously, all accumulated material is located inside the sandbox, not occupying the internal volume of the transfer hopper. This extends the service life of the liner on the material-facing side of the hopper and avoids the potential for blockage caused by accumulated material occupying the internal volume of the transfer hopper. The sandbox 3 is placed vertically outside the transfer hopper 2, with its opening facing the material inflow direction of the conveyor. This design helps control the material flow rate and, through the temporary buffering of the material by the sandbox 3, prevents large volumes of material from directly entering the transfer hopper, causing material accumulation and blockage. Fixing pins are installed on the vertical surface where the fixed frame 1 contacts the sandbox 3. These pins are connected to the outside of the transfer hopper 2 using metal chains. When the wear-resistant sandbox is placed into the frame, the pins are inserted into the mounting holes on the side of the sandbox 3 to fix it to the outer frame 1, preventing the sandbox 3 from falling into the transfer hopper 2. In the above embodiment, this anti-blocking mechanism is suitable for various belt conveyor systems, especially for conveying large quantities of bulk cargo. In actual use, the belt conveyor is first combined with the fixed frame 1 to ensure the stability of the entire device. Then, the transfer hopper 2 and sandbox 3 are installed on the fixed frame. The vertical placement of the sandbox 3 ensures its stability and provides sufficient buffer space during material flow. When the material enters the transfer hopper 2 via the belt conveyor, it will first be temporarily stored in the sand box 3. After being properly buffered in the sand box, the material will enter the transfer hopper 2 and continue to be transported smoothly.

[0021] The sandbox 3 is designed with a certain capacity to store a certain amount of material, preventing blockages caused by excessive material accumulation. The interior of the sandbox can be cleaned regularly to prevent excessive material buildup from affecting the normal operation of the equipment.

[0022] A liner 8 is provided on the inner wall of the transfer funnel 2, specifically in the lower part of the sand box 3. In the anti-clogging mechanism, the liner 8 is provided on the inner wall of the transfer funnel 2, particularly in the lower region of the sand box 3. The main function of the liner 8 is to withstand the impact and wear generated during material flow. The liner 8 adopts an arc-shaped structure design, which effectively disperses the impact force of the material, reduces concentrated wear on the inner wall of the funnel, thereby improving the service life of the liner and ensuring that the material can pass smoothly through the funnel without clogging.

[0023] The arc-shaped structure of the liner 8 reduces the coefficient of friction during material flow through geometric optimization, preventing material from getting stuck on the inner wall of the funnel. Especially when material enters the lower part of the transfer funnel 2 through the sandbox 3, the arc-shaped design of the liner allows the material to flow smoothly while effectively buffering the impact force of the material, reducing direct impact on the funnel, and preventing excessive wear or the formation of dead corners for material accumulation on the inner wall of the funnel.

[0024] Furthermore, the area where the liner 8 is installed fits tightly with the sandbox 3. The material temporarily stored in the sandbox 3 acts as a buffer and decelerator, making the material flow rate into the funnel more uniform and reducing the impact load on the liner. Through reasonable liner configuration, the impact force of the material is effectively dispersed, allowing the wear resistance of the liner 8 to be fully utilized, thereby extending its service life.

[0025] To enhance the wear resistance of liner plate 8, the liner material is made of high-strength wear-resistant alloy or ceramic material. These materials have high hardness and wear resistance, and can maintain a long service life even in high flow and high impact working environments, reducing equipment downtime and maintenance costs caused by wear.

[0026] The system also includes a pressure sensor 4, which is mounted on the fixed frame 1 and located at the lower part of the transfer funnel 2. The main function of the pressure sensor 4 is to monitor the accumulation of material in the transfer funnel 2 in real time. By detecting changes in the material pressure, it determines whether there is a risk of material accumulation inside the funnel, thereby providing early warning and taking corresponding anti-blocking measures. Specifically, the pressure sensor 4 detects blockage by sensing changes in the weight of the material at the bottom of the funnel. When the material accumulates to a certain amount in the transfer funnel, the pressure sensor 4 will detect a corresponding pressure change. This change may indicate that the material has begun to accumulate or has stagnated in some areas of the funnel. By monitoring pressure changes in real time, the pressure sensor 4 can effectively determine whether material accumulation has occurred and promptly feed back to the control system.

[0027] The pressure sensor 4, mounted on the fixed frame 1, accurately monitors the material accumulation at the bottom of the transfer hopper. Since material accumulation typically leads to increased pressure at the bottom of the hopper, the sensor can continuously monitor the pressure to detect accumulation trends. The sensor's installation position is carefully designed to accurately sense changes in material at the bottom of the hopper, avoiding errors that might occur with sensors installed in unsuitable locations. Once the pressure sensor 4 detects a material accumulation signal, the control system will process it according to a preset program. For example, the system may activate the vibrator 6 connected to the sensor to clean the accumulated material in the hopper, or spray water through the nozzle 5 to flush away the material and prevent further accumulation and worsening of the blockage. If the pressure sensor continuously detects abnormal pressure changes and fails to clean the material in time, the system will trigger a protection mechanism, such as a shutdown signal, automatically stopping the operation of the upstream conveying equipment to prevent larger-scale equipment damage or material leakage caused by blockage.

[0028] By mounting pressure sensor 4 on the fixed frame 1 and placing it below the transfer hopper 2, this design enables real-time monitoring of the material accumulation status, providing timely and accurate early warnings for the anti-blockage system and effectively preventing production interruptions and equipment damage caused by hopper blockage. This configuration not only improves the safety of the conveying system but also enhances the equipment's automated monitoring capabilities, making the overall transportation process more efficient and reliable.

[0029] The system also includes nozzles 5, which are positioned at the intersection of the material receiving surface and two sides of the transfer funnel 2. The main function of the nozzles 5 is to effectively prevent material accumulation at the interface or in areas prone to buildup by spraying water as the material passes through the transfer funnel, further reducing the risk of blockage. Specifically, the nozzles 5 are located at the intersection of the material receiving surface and the sides of the transfer funnel 2. This location is where material is most likely to accumulate and remain after entering the transfer funnel, especially when the material particles are fine or have high viscosity. Material can easily form dead zones in this area, leading to accumulation and affecting the normal operation of the funnel. By installing nozzles 5, water can be sprayed in a timely manner as the material passes through this area, acting as a cleaning agent to disperse accumulated material and prevent blockage in these areas.

[0030] The nozzle 5 is connected to the water source via an external water pipe, ensuring a continuous water supply during operation and providing a stable and sufficient water volume to guarantee the nozzle's cleaning effect. The water pipe connection method has been optimized for easy maintenance and cleaning, ensuring continued functionality during long-term use.

[0031] The spray from nozzle 5 not only reduces material buildup on the inner wall of the funnel, but also further protects the liner of the transfer funnel by reducing friction between the material and the funnel wall, thus reducing wear and extending the equipment's service life. Simultaneously, the nozzle design considers both uniformity and efficiency, enabling precise water spraying without interfering with material flow, ensuring smooth material flow through the funnel and minimizing unnecessary accumulation.

[0032] This anti-clogging mechanism also includes a vibrator 6, which is installed at the discharge port of the transfer funnel 2. The main function of the vibrator 6 is to remove accumulated material in the transfer funnel 2 through vibration, preventing blockage caused by material accumulation. The vibrator 6, through its powerful vibration, helps the material flow smoothly as it passes through the transfer funnel, effectively reducing the formation of accumulated material. Especially when the material flow rate is large or the material particles are fine and highly viscous, the vibrator can provide sufficient impact force to prevent material accumulation near the discharge port, ensuring that the material can pass smoothly through the funnel and enter the downstream conveying system.

[0033] The vibrator 6 is installed at the discharge port of the transfer funnel 2, a critical node for material flow. Because materials passing through this location may accumulate due to slow speed, high viscosity, or fine particles, the vibrator, through continuous vibration, effectively clears this material buildup and prevents blockages. Furthermore, the vibration frequency and intensity can be adjusted according to the characteristics of the actual material to ensure optimal performance under various operating conditions.

[0034] It also includes a controller 7, which is electrically connected to the pressure sensor 4 and the vibrator 6. The function of the controller 7 is to coordinate and manage the operation of the pressure sensor 4 and the vibrator 6. Specifically, the pressure sensor 4 monitors the accumulation of material inside the transfer funnel 2. Once the accumulated material exceeds a set threshold, the controller 7 receives a signal from the sensor and automatically triggers the vibrator 6. The vibrator 6 begins to vibrate, clearing the accumulated material and ensuring that the material can pass smoothly through the funnel, preventing blockages.

[0035] The controller 7 can not only control the start and stop of the vibrator 6, but also adjust the vibration frequency and intensity according to the specific material flow conditions to achieve more efficient material cleaning. Through linkage with the pressure sensor 4 and the vibrator 6, the controller 7 realizes automated and intelligent anti-clogging control, thereby reducing the need for manual intervention and improving the operating efficiency and reliability of the equipment.

[0036] Furthermore, the controller 7 can be flexibly adjusted according to different production environments and material characteristics through preset parameters. For example, when materials are particularly prone to accumulating, the controller can increase the operating frequency of the vibrator to ensure cleaning effectiveness; while when the material flow is relatively smooth, the operating frequency of the vibrator can be reduced to avoid unnecessary energy consumption.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A belt conveyor anti-blocking mechanism, comprising a fixed frame (1), wherein a belt conveyor is disposed on one side of the fixed frame (1); characterized in that, The fixed frame (1) is provided with a transfer funnel (2) that allows materials to pass through and a sand box (3) for temporarily storing materials. The sand box (3) is placed vertically on the outside of the transfer funnel (2), and the opening side faces the material inlet direction of the conveyor.

2. The anti-blocking mechanism for belt conveyors according to claim 1, characterized in that, A liner (8) is provided on the inner wall of the transfer funnel (2) and at the lower part of the sand box (3).

3. The anti-blocking mechanism for belt conveyors according to claim 2, characterized in that, The liner (8) has an arc-shaped structure.

4. The anti-blocking mechanism for belt conveyors according to claim 1, characterized in that, It also includes a pressure sensor (4), which is mounted on the fixed frame (1) and located at the lower part of the transfer funnel (2).

5. The anti-blocking mechanism for belt conveyors according to claim 4, characterized in that, It also includes a nozzle (5), which is located at the intersection of the material receiving surface and the two sides of the transfer funnel (2).

6. The anti-blocking mechanism for belt conveyors according to claim 5, characterized in that, The nozzle (5) is externally connected to a water pipe.

7. The anti-blocking mechanism for belt conveyors according to claim 5, characterized in that, It also includes a vibrator (6), which is installed at the discharge port of the transfer funnel (2).

8. The anti-blocking mechanism for belt conveyors according to claim 7, characterized in that, It also includes a controller (7) which is electrically connected to the pressure sensor (4) and the vibrator (6).

Images