A pollution control structure and method for belt conveyors

Abstract

This invention discloses a pollution control structure and method for belt conveyors. The control structure includes an outer cover for enclosing the belt conveyor, a mobile vacuum truck, and a pipe for dust collection and conveying. The outer cover includes an upper cover above the belt conveyor and a lower cover below it. The bottom of the lower cover is inclined and forms a trough on one side. A track is provided on the trough, and the mobile vacuum truck is movably mounted on the track. The pipe is mounted on the mobile vacuum truck, with its lower end located within the trough. This solution completely encloses the belt conveyor, preventing pollution from affecting the hygiene outside the conveyor and thus protecting the environment. The pollution is thoroughly controlled. Dust is sucked away by the vacuum pipe, ensuring effective dust collection while preventing dust accumulation below the belt conveyor, thus avoiding interference with the original normal operation of the conveyor. The program-controlled mobile truck operation ensures that the dust removal system automatically completes the cleaning work without human intervention, resulting in efficient and thorough pollution control.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor material transportation technology, and in particular to a belt conveyor pollution control structure and method. Background Technology

[0002] Belt conveyors are one of the most widely used material handling machines, especially for bulk material transport. However, while people enjoy their high efficiency and low cost, they are also troubled by inherent material leakage and contamination. Belt conveyor contamination is more prominent with corrugated sidewall belts, while ordinary belts are much less prone to contamination, but they still suffer from misalignment, material leakage, and the shedding of adhering material particles. If not cleaned over a period of time, the contamination will accumulate and become severe, sometimes even affecting the normal operation of the belt conveyor, leading to an increase in malfunctions and thus impacting production.

[0003] Currently, the cleaning of contaminants from conveyor belts is primarily done manually. However, manual cleaning of leaking material from conveyor belts is not only labor-intensive but also poses safety risks.

[0004] Contamination from conveyor belts is currently treated by installing dust suction ports at the inlet and outlet, but the effect is very limited. This is because the air velocity and the range of negative pressure space generated are very limited, which is simply insufficient for conveyor belts that are often tens of meters long. Furthermore, due to the specific gravity of the materials, some particles cannot be suspended in the airflow and cannot be sucked away.

[0005] There are other methods, such as installing mechanical brushes at the unloading rollers of the belt conveyor or installing belt baffles along the belt conveyor. However, these methods not only fail to fundamentally solve the pollution problem of the belt conveyor, but also objectively increase the friction load of the belt conveyor, resulting in excessive motor current when the belt conveyor is running, which may even cause accidental tripping; thus bringing uncertainties to production.

[0006] For example, patent CN220077646U discloses a dust collection device for a belt conveyor; it includes a cleaning bucket and a frame, the cleaning bucket being fixed inside the frame, and also includes a roller brush, a cleaning effect adjustment mechanism, and a self-cleaning mechanism. The roller brush is located on the inner side above the cleaning bucket and is driven to rotate by a roller brush motor. The cleaning effect adjustment mechanism is located on the outer side of the cleaning bucket and is used to adjust the amount of feed of the roller brush relative to the belt. The self-cleaning mechanism moves relative to the roller brush to knock the roller brush to clean the dust; this will increase the load on the belt conveyor. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a pollution control structure and method for belt conveyors, aiming to achieve thorough pollution control without affecting the normal operation of the belt conveyor.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0009] A pollution control structure for a belt conveyor includes an outer cover for covering the belt conveyor, a mobile vacuum cleaner cart, and a pipe for vacuuming and conveying. The outer cover includes an upper cover above the belt conveyor and a lower cover below the belt conveyor. The bottom of the lower cover is inclined and forms a trough on one side. A track is provided on the trough, and the mobile vacuum cleaner cart is movably mounted on the track. The pipe is mounted on the mobile vacuum cleaner cart, and the lower end of the pipe is located in the trough.

[0010] A vibrator is installed below the lower cover.

[0011] The outer cover is a detachable segmented structure connected along the length of the belt conveyor. The upper cover is supported on one side of the belt conveyor and the track is supported on the other side of the belt conveyor. The two sides of the upper cover are fixed to the upper cover support and the track support.

[0012] It also includes a trolley track, which is located above the belt conveyor and has trolleys on it. The pipeline includes a rigid pipe and a flexible pipe connected together. The rigid pipe is fixed on the mobile vacuum cleaner and the lower end of the rigid pipe is located in the trough. The flexible pipe is suspended on the trolley.

[0013] The upper end of the rigid tube is equipped with a solenoid valve, which is connected to the lower end of the flexible tube.

[0014] The tank body is equipped with a grate plate at the lower end of the corresponding rigid pipe to filter out large particles of material.

[0015] The vehicle track consists of two parallel tracks, one on the track support and the other on the upper outer side of the trough. The inner side of the track is provided with a steel plate with a track groove, and a sealing belt is provided on the steel plate. The mobile vacuum cleaner is equipped with a wheel roller structure that supports the belt for the lower part of the pipe to enter the trough.

[0016] The wheel roller structure includes an active wheel roller composite component and a passive wheel roller composite component arranged side by side. The mobile vacuum cleaner is equipped with a motor drive structure. The active wheel roller composite component includes a transmission wheel located in the track groove, and the transmission wheel is connected to the motor drive structure.

[0017] The wheel roller structure also includes a pair of pressure rollers, one pressure roller is located in front of the active wheel roller composite component, and the other pressure roller is located behind the passive wheel roller composite component; the sealing belt passes from under one pressure roller to the upper surface of the active composite component's upper roller, and then passes through the passive composite component's roller to the lower surface of the other pressure roller.

[0018] A governance method utilizing the aforementioned governance structure includes the following steps:

[0019] The dust generated during the operation of the belt conveyor falls into the lower hood, and the vibrator below the lower hood drives the dust into a trough on one side.

[0020] The dust and material inside the tank are sucked away through the vacuum pipes on the mobile vacuum truck;

[0021] The controller moves the mobile vacuum cleaner and the trolley above it together, ensuring that the dust removal system can automatically complete the cleaning work without human intervention.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1) This solution completely encloses the conveyor belt, preventing pollution from affecting the hygiene outside the conveyor belt and thus protecting the environment, achieving thorough pollution control.

[0024] 2) The dust is sucked away by the vacuum tube, which ensures the dust collection effect while also ensuring that dust does not accumulate under the belt conveyor, thus not affecting the normal operation of the original belt conveyor.

[0025] 3) The program controls the operation of the mobile vehicle, ensuring that the dust removal system can automatically complete the cleaning work without human intervention.

[0026] 4) This method of controlling pollution in belt conveyors has a wide range of applications: It can be used not only for horizontal belt conveyors, but also for belt conveyors with inclination or even vertical belts; it can be used not only for ordinary flat belts, but also for corrugated sidewall belts; it can be used not only for straight belts, but also for belts that can bend.

[0027] 5) Extremely low treatment cost: On the one hand, the recycled materials can be utilized, and on the other hand, the labor cost of manual cleaning is saved; more importantly, the dust removal air volume of the belt conveyor system can be saved, thus achieving the purpose of saving electricity. Attached Figure Description

[0028] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0029] Figure 1 This is a schematic cross-sectional view of the treatment structure of the present invention.

[0030] Figure 2 This is a side view of the governance structure of the present invention.

[0031] Figure 3 for Figure 1 A magnified view of a portion of the image.

[0032] Figure 4 for Figure 2 A magnified view of a portion of the image.

[0033] In the picture:

[0034] 1. Mobile vehicle transmission structure; 2. Reducer; 3. Frame; 4. Drive wheel roller composite component; 5. Track; 6. Pressure roller; 7. Passive wheel roller composite component; 8. Belt sealing surface; 9. Sealing belt; 10. Grate plate; 11. Track support; 12. Lower cover; 13. Vibrator; 14. Upper cover support; 15. Fastener; 16. Inspection window; 17. Upper cover; 18. Rigid pipe; 19. Solenoid valve; 20. Hose; 21. Trolley; 22. Trolley track; 23. Vacuum tube; 24. Belt conveyor. Detailed Implementation

[0035] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and through the description of the examples.

[0036] like Figures 1 to 4 As shown, the belt conveyor pollution control structure includes a mobile vacuum truck, an outer cover for enclosing the belt conveyor, and a pipe for vacuuming and conveying dust. The outer cover includes an upper cover 17 located above the belt conveyor and a lower cover 12 located below the belt conveyor. This solution completely encloses the belt conveyor, preventing pollution from affecting the hygiene outside the belt conveyor, thereby protecting the environment and achieving thorough pollution control.

[0037] The bottom of the lower cover is inclined and forms a trough on one side. A track is provided on the trough, and a mobile vacuum cleaner is movably mounted on the track 5. The pipe is mounted on the mobile vacuum cleaner, and the lower end of the pipe is located in the trough. Furthermore, a vibrator 13 is provided below the lower cover. The dust material is driven into the trough on one side by the vibration of the vibrator below the lower cover.

[0038] The outer cover is a detachable segmented structure that is connected along the length of the belt conveyor. The upper cover support 14 is provided on the support leg on one side of the belt conveyor, and the track support 11 is provided on the support leg on the other side of the belt conveyor. The two sides of the upper cover are fixed on the upper cover support and the track support. The structure is reasonably designed and easy to assemble.

[0039] In this invention, a trolley track 22 is provided above the belt conveyor, the trolley track is set along the belt conveyor, and a slidable trolley 21 is provided on the trolley track. The pipeline includes a rigid pipe 18 and a flexible hose 20 that are connected. The rigid pipe is fixed on a mobile vacuum cleaner, and the lower end of the rigid pipe is located in the trough. The flexible hose is suspended on the trolley. The flexible hose is suspended to avoid premature damage due to dragging and friction.

[0040] A solenoid valve 19 is installed at the upper end of the rigid pipe, which is connected to the lower end of the flexible hose. A grate 10 is installed in the tank corresponding to the lower end of the rigid pipe to filter out large particles; this ensures that the vacuum pipe is not blocked and guarantees the dust collection effect.

[0041] Two tracks are arranged side by side, one on the track support and the other on the upper outer side of the trough. The inner side of the track is equipped with a steel plate with a track groove, and a sealing belt 9 is provided on the steel plate. The mobile vacuum cleaner is equipped with a wheel roller structure that supports the belt for the lower part of the pipe to enter the trough.

[0042] The wheel roller structure includes an active wheel roller composite component 4 and a passive wheel roller composite component 7 arranged side by side. The mobile vacuum cleaner is equipped with a motor drive structure. The active wheel roller composite component includes a transmission wheel located in the track groove, and the transmission wheel is connected to the motor drive structure.

[0043] The wheel roller structure also includes a pair of pressure rollers 6, one pressure roller located in front of the active wheel roller composite component and the other pressure roller located behind the passive wheel roller composite component; the sealing belt passes from under one pressure roller to the upper surface of the active composite component's upper roller, then passes through the passive composite component's roller to the lower surface of the other pressure roller; the rollers of the active wheel roller composite component and the rollers of the passive wheel roller composite component support the sealing belt to form a rigid tube entering the gap, and can run stably back and forth.

[0044] The present invention utilizes the aforementioned governance structure for a governance method, comprising the following steps:

[0045] The dust generated during the operation of the belt conveyor falls into the lower hood, and the vibrator below the lower hood drives the dust into a trough on one side.

[0046] The dust and material inside the tank are sucked away through the vacuum pipes on the mobile vacuum truck;

[0047] The controller moves the mobile vacuum cleaner and the trolley above it together, ensuring that the dust removal system can automatically complete the cleaning work without human intervention.

[0048] In this invention, dust is sucked away by a vacuum tube, ensuring effective dust collection while preventing dust accumulation under the conveyor belt, thus avoiding disruption to the normal operation of the original conveyor belt. The program controls the movement of the mobile vehicle, ensuring that the dust removal system can automatically complete the cleaning work without human intervention.

[0049] This method for controlling pollution from belt conveyors is highly adaptable: it can be used not only for horizontal belt conveyors, but also for belt conveyors with inclination or even vertical orientation; it can be used not only for ordinary flat belts, but also for corrugated sidewall belts; and it can be used not only for straight belts, but also for belts that can bend.

[0050] The treatment cost is extremely low: on the one hand, the recycled materials can be utilized, and on the other hand, the labor costs associated with manual cleaning are saved; more importantly, it can save the dust removal air volume of the belt conveyor system, thus achieving the purpose of saving electricity.

[0051] The preferred embodiment of the present invention is as follows:

[0052] The outer cover of the combined belt conveyor 24 is made along the length direction and is divided into several sections. Considering the maintenance requirements of the belt conveyor, each section is divided into three parts: for easy disassembly, the outer cover includes an upper cover 17 located above the belt conveyor and a lower cover 12 located below the belt conveyor; the upper cover is a combined structure that is divided into two parts on the left and right sides and is assembled and fixed by fasteners.

[0053] The upper cover 17 is positioned and fixed to the original conveyor belt 24 legs via track supports 11 and upper cover supports 14, respectively. The lower cover has a linear curved surface structure. The cross-section of the curved surface is a sloping groove shape. The thin steel plate located directly below the original conveyor belt forms a certain angle with the original conveyor belt mounting plane. A vibrator 13 with a high vibration frequency is installed below this plate. When the vibrator is powered on, it can effectively drive particulate contaminants into the trough-shaped structure on one side of the conveyor belt.

[0054] On one side of the belt conveyor, there are two parallel tracks 5, with the top elevation of the two tracks being the same. The two tracks are fixed to the top of the lower cover and the bottom of one side of the upper cover, respectively. A flat steel plate with supporting ribs is arranged along the inner side of the tracks, and the supporting ribs of the steel plate are welded and fixed to the inner side of the lower cover. The upper surface of the steel plate is parallel to the track surface and cooperates with the narrow sealing belt 9 to form the upper surface belt sealing surface 8 structure. Together with the upper and lower covers, it forms a sealed space for the belt conveyor, which can ensure that dust is completely prevented from escaping, thereby ensuring the environmental protection effect of the belt conveyor.

[0055] A mobile vacuum cleaner is installed on the track. The frame 3 is equipped with a composite component 4 of an active wheel roller, a composite component 7 of a passive wheel roller, and a pressure roller 6.

[0056] Brief Description of the Wheel-Roller Composite Component Structure: Both the active and passive wheel-roller composite components feature a central shaft. A bearing structure connects the roller to the central shaft. In the active composite component, one wheel is fixed to the drive sprocket and rotates together, while the wheel is connected to the central shaft via a bearing structure. In the passive composite component, the connection between the wheel and the central shaft is also a bearing structure, without a sprocket. The active wheel drives the trolley forward and backward.

[0057] The position where the central axis of the composite component connects to the trolley frame is machined with two flat surfaces on both sides, which are consistent with the width of the slot opening of the trolley. Therefore, the trolley frame can firmly hold the central axis of the active composite component and the passive composite component, ensuring that the central axis does not rotate when the trolley moves.

[0058] The central shaft of the pressing roller is also connected to the roller by a bearing structure. The position where the central shaft of the pressing roller connects to the carriage frame is also machined with two flat surfaces on both sides, which are consistent with the width of the slot opening of the carriage, ensuring that the central shaft does not rotate when the carriage moves.

[0059] The narrow sealing belt passes from under the pressure roller on one side to the upper surface of the passive composite component's upper roller, then through the upper surface of the active composite component to the lower surface of the pressure roller on the other side, forming a "V" shape. The narrow belt is taut and fixed at both ends.

[0060] The mobile transmission structure 1 on the trolley frame is designed with a reducer 2, which drives the wheels of the active composite component through a transmission mechanism (usually chain drive), thereby enabling the trolley to move forward and backward.

[0061] The trolley also features a crucial rigid pipe 17, which is welded to the trolley frame. The lower end of this pipe extends to the bottom of the lower cover tank, while the upper end connects to the vacuum tube 23 via a solenoid valve 19 and a flexible hose 20. In the high-vacuum environment within the tube, dust can be sucked away. A grate plate 10 is designed between the bottom of the lower cover tank and the conveyor belt to filter out large particles, ensuring the vacuum tube 23 does not become clogged and guaranteeing effective dust collection.

[0062] Above the belt conveyor, along the length of the belt conveyor, a trolley track 22 is arranged to install trolleys 21. The trolleys 21 support the hoses 20, preventing the hoses 20 from dragging on the ground and rubbing against the ground, thus preventing premature damage. If the belt conveyor is very long, several additional hoses and trolleys can be installed.

[0063] Each trolley and solenoid valve 19 is controlled by a PLC program to ensure coordinated operation of the trolleys and prevent collisions that could damage the equipment. Generally, when the reducer motor 2 of each trolley starts, the solenoid valve connected by a rigid pipe on the same trolley also opens simultaneously. When the trolley stops working, the solenoid valve closes simultaneously.

[0064] To facilitate equipment personnel in inspecting the belt conveyor, inspection windows 16 are opened on both sides of each section of the upper cover 17. By opening these windows 16, the operating status of the belt conveyor can be inspected.

[0065] The assembly process is as follows: For a specific belt conveyor, design a certain number of reasonable sealing cover structure segments, prefabricate the upper and lower cover structures of each segment, and equip them with a certain number of support components and fasteners 15; customize narrow sealing belts 9, process the trolley frame, wheel and roller composite components, and belt pressing rollers; select a suitable model of reducer and process the transmission mechanism parts; process the trolley track and grate plates; carry out on-site installation and construction, mechanical and electrical debugging; and track the effect.

[0066] The main innovations of this invention are as follows: It utilizes the principle of spatial separation to prevent dust from spilling outside the conveyor belt, ensuring environmental protection. It uses the principle of vibration to collect dust. It utilizes a vacuum field to recycle materials. It uses the principle of segmentation to separate particles of different sizes, preventing large particles from clogging the vacuum pipes and ensuring the system operates normally in an unattended environment. It also cleverly incorporates the concept of ventilation duct dust collection structures to achieve pollution control of the conveyor belt.

[0067] The above description is merely an illustration of preferred embodiments of the present invention, and the above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0068] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the concept and technical solution of the present invention, or the direct application of the concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A pollution control structure for a belt conveyor, comprising an outer cover for enclosing the belt conveyor, characterized in that: It also includes a mobile vacuum cleaner cart and a pipe for vacuuming and conveying; the outer cover includes an upper cover located above the belt conveyor and a lower cover located below the belt conveyor, the bottom of the lower cover is inclined and forms a trough on one side, a track is provided on the trough, and the mobile vacuum cleaner cart is movably mounted on the track; the pipe is mounted on the mobile vacuum cleaner cart, and the lower end of the pipe is located in the trough. A vibrator is provided below the lower cover; it also includes a trolley track, which is located above the belt conveyor and has trolleys on it. The pipeline includes a rigid pipe and a flexible pipe connected together. The rigid pipe is fixed on the mobile vacuum cleaner, and the lower end of the rigid pipe is located in the trough. The flexible pipe is suspended on the trolley.

2. The belt conveyor pollution control structure as described in claim 1, characterized in that: The outer cover is a detachable segmented structure connected along the length of the belt conveyor. The upper cover is supported on one side of the belt conveyor and the track is supported on the other side of the belt conveyor. The two sides of the upper cover are fixed to the upper cover support and the track support.

3. The belt conveyor pollution control structure as described in claim 1, characterized in that: The upper end of the rigid tube is equipped with a solenoid valve, which is connected to the lower end of the flexible tube.

4. The belt conveyor pollution control structure as described in claim 1, characterized in that: The tank body is equipped with a grate plate at the lower end of the corresponding rigid pipe to filter out large particles of material.

5. The belt conveyor pollution control structure as described in claim 1, characterized in that: The vehicle track consists of two parallel tracks, one on the track support and the other on the upper outer side of the trough. The inner side of the track is provided with a steel plate with a track groove, and a sealing belt is provided on the steel plate. The mobile vacuum cleaner is equipped with a wheel roller structure that supports the belt for the lower part of the pipe to enter the trough.

6. The belt conveyor pollution control structure as described in claim 5, characterized in that: The wheel roller structure includes an active wheel roller composite component and a passive wheel roller composite component arranged side by side. The mobile vacuum cleaner is equipped with a motor drive structure. The active wheel roller composite component includes a transmission wheel located in the track groove, and the transmission wheel is connected to the motor drive structure.

7. The belt conveyor pollution control structure as described in claim 6, characterized in that: The wheel roller structure also includes a pair of pressure rollers, one pressure roller is located in front of the active wheel roller composite component, and the other pressure roller is located behind the passive wheel roller composite component; the sealing belt passes from under one pressure roller to the upper surface of the active composite component's upper roller, and then passes through the passive composite component's roller to the lower surface of the other pressure roller.

8. A method for treating pollution using the belt conveyor pollution control structure as described in any one of claims 1 to 7, characterized in that: The governance method includes the following steps: The dust generated during the operation of the belt conveyor falls into the lower hood, and the vibrator below the lower hood drives the dust into a trough on one side. The dust and material inside the tank are sucked away through the vacuum pipes on the mobile vacuum truck; The controller moves the mobile vacuum cleaner and the trolley above it together, ensuring that the dust removal system can automatically complete the cleaning work without human intervention.

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