Port cleaning device

Abstract

The invention relates to the technical field of environmental protection, in particular to a port cleaning device which comprises a supporting frame, a scraping mechanism, a flexible scraper assembly, a pressure adjusting assembly, a cleaning mechanism, a gear motor, a scraper body, a scraper holder, a protective shell, a pressure spring set and a pressure adjusting cover plate. Through cooperation of the scraping mechanism and the cleaning mechanism, the cargo attachment problem of the port belt conveyor is solved in a targeted mode, the running resistance of a belt is greatly reduced, energy consumption is reduced, the service life of the belt is remarkably prolonged, and the maintenance cost and the shutdown frequency are reduced; and meanwhile, the thorough cleaning effect avoids cross contamination between different goods, and the goods grade is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of environmental protection technology, specifically a port cleaning device. Background Technology

[0002] As a core hub of the modern transportation and trade system, ports play an irreplaceable strategic role in global production and daily life. They are crucial nodes for the distribution of land and sea goods, handling over 80% of global international trade freight volume. Ports efficiently connect cross-regional transportation needs for bulk commodities and manufactured goods, leveraging deep-water berths and specialized loading and unloading equipment to achieve large-scale, low-cost cargo turnover, ensuring a stable supply of production factors such as energy and raw materials, and providing an efficient channel for the flow of goods across regions and borders.

[0003] In modern port cargo transportation systems, belt conveyors, with their advantages of high conveying capacity, long conveying distance, and high efficiency in continuous operation, have become the core equipment for loading and unloading bulk and large-volume cargo. A modern port belt conveyor system can handle thousands of tons of cargo per hour, achieving seamless connection from ships to storage yards and significantly improving port throughput efficiency. Its simple structure, high degree of automation, and relatively convenient maintenance make it irreplaceable in the transportation of bulk commodities such as coal, ore, and grain.

[0004] However, in actual operation, belt conveyors face the problem of cargo adhesion. This problem has various causes: powdery goods are prone to being scattered and deposited during transport; granular goods tend to stick together in high humidity; and damp goods are inherently sticky and easily adhere to the belt surface. The high humidity and windy environment unique to ports further exacerbates this phenomenon. This leads to many adverse consequences: First, the deposits increase belt running resistance, resulting in increased motor load and significantly higher energy consumption; second, residues accelerate belt wear, shorten equipment lifespan, and increase maintenance costs; third, uneven adhesion can cause belt misalignment, and in severe cases, equipment failure and shutdown, affecting the overall operational efficiency of the port. Furthermore, cross-contamination between different goods can also affect cargo quality.

[0005] In view of this, in order to overcome the above-mentioned technical problems, the present invention proposes a port cleaning device. Summary of the Invention

[0006] To overcome the shortcomings of the prior art, the technical solution adopted by the present invention to solve its technical problem is: the port cleaning device of the present invention includes a belt conveyor body and a support frame installed above the belt.

[0007] A scraping mechanism, comprising a flexible scraper assembly and a pressure regulating assembly, wherein the flexible scraper assembly is mounted on the front end of a support frame via the pressure regulating assembly;

[0008] A cleaning mechanism is located behind the scraping mechanism and is connected to a geared motor that is fixedly mounted on a support frame;

[0009] The support frame is securely connected at the port transport point via rigid connectors.

[0010] Preferably, the flexible scraper assembly includes a blade body and a blade holder. The blade body is made of a highly elastic and wear-resistant polymer material, and the front end of the blade body forms a smoothly transitioned curved surface structure to avoid damaging the belt surface. The blade body is fixed to the front end of the blade holder through an embedded connection structure. The pressure adjustment assembly is connected to the rear end of the blade holder and is used to adjust the contact pressure of the flexible scraper assembly according to the thickness of the material adhering to the belt surface.

[0011] Preferably, the pressure regulating assembly includes a protective housing with one end fixedly mounted on a support frame and the other end slidably sleeved on a flexible scraper assembly. The protective housing contains a pressure spring assembly consisting of multiple stacked disc springs, with a pressure regulating cover plate fixedly connected to its top. The pressure regulating assembly also includes an adjusting screw that extends into the protective housing and is fixedly connected to the pressure regulating cover plate.

[0012] Preferably, the cleaning mechanism includes a cleaning spindle with one end rotatably connected to a support frame and the other end connected to a geared motor. A bristle fixing disc is sleeved on the cleaning spindle along the spindle axis, and bristles are densely embedded in the outer edge of the bristle fixing disc.

[0013] Preferably, the bristles are made of an elastic material, and the vertically downward-pointing bristles maintain a small gap with the belt surface when at rest.

[0014] Preferably, it also includes a desorption mechanism, which is installed below the main body of the belt conveyor behind the cleaning mechanism; the desorption mechanism includes a vibration motor, which is fixedly connected to a vibration transmission plate, and the vibration transmission plate extends into the inside of the belt and contacts the inside of the belt.

[0015] Preferably, the support frame is a rigid frame structure welded from transverse support beams, longitudinal columns, and diagonal reinforcing ribs. The transverse support beams are arranged parallel to the main beam of the belt conveyor, the longitudinal columns are perpendicularly connected to the transverse support beams and the foundation plane, and the diagonal reinforcing ribs connect the transverse support beams and the longitudinal columns to form a triangular stable structure.

[0016] Preferably, the surface of the support frame is sandblasted and then coated with an anti-corrosion coating, and each functional mechanism is fixed to the support frame through a standard connection interface.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. This device specifically addresses the issue of cargo adhesion on port belt conveyors, significantly reducing belt running resistance, energy consumption, and extending belt lifespan, while lowering maintenance costs and downtime frequency. Simultaneously, its thorough cleaning prevents cross-contamination between different cargoes, ensuring cargo quality. More importantly, its adaptive pressure regulation mechanism makes it suitable for various bulk cargo handling scenarios in ports. Whether it's dry ore, damp coal, or refined grains, optimal cleaning results can be achieved through simple adjustments, thereby comprehensively improving the operational stability and efficiency of port bulk cargo handling systems.

[0019] 2. The vertically downward brush bristles maintain a tiny gap with the belt surface when stationary. When the belt passes the cleaning mechanism, the elastic brush bristles extend outward under the action of centrifugal force, and contact the belt surface with appropriate pressure. This dynamic contact method ensures the cleaning effect and avoids excessive wear on the belt caused by continuous friction. Especially when dealing with fine grain particles or light adhering substances such as coal dust, the rotating brush bristles can not only effectively remove residues from the belt surface, but the weak airflow generated can also blow away dust adhering to the belt texture, achieving deep cleaning. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention;

[0023] Figure 3 A three-dimensional structural diagram of the main mechanism of this invention;

[0024] Figure 4 A three-dimensional cross-sectional view of the scraping mechanism of the present invention.

[0025] In the diagram: 1. Main body of belt conveyor; 2. Support frame; 3. Scraping mechanism; 4. Flexible scraper assembly; 5. Pressure regulating assembly; 6. Cleaning mechanism; 7. Gear motor; 8. Blade body; 9. Blade holder; 10. Protective housing; 11. Pressure spring assembly; 12. Pressure regulating cover plate; 13. Adjusting screw; 14. Cleaning main shaft; 15. Brush bristle fixing plate; 16. Brush bristles; 17. Desorption mechanism; 18. Vibration motor; 19. Vibration transmission plate; 20. Transverse support beam; 21. Longitudinal column; 22. Diagonal reinforcing rib. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 4 As shown, an embodiment of the present invention provides a port cleaning device, including a belt conveyor body 1 and a support frame 2 installed above the belt;

[0028] The scraping mechanism 3 includes a flexible scraper assembly 4 and a pressure regulating assembly 5. The flexible scraper assembly 4 is installed at the front end of the support frame 2 through the pressure regulating assembly 5.

[0029] Cleaning mechanism 6 is located behind scraping mechanism 3 and is connected to reduction motor 7 fixedly installed on support frame 2;

[0030] The support frame 2 forms a stable connection at the port transport point through rigid connectors.

[0031] In one embodiment of the present invention, the flexible scraper assembly 4 includes a blade body 8 and a blade holder 9. The blade body 8 is made of a highly elastic and wear-resistant polymer material, and the front end of the blade body 8 forms a smoothly transitioned curved surface structure to avoid damaging the belt surface. The blade body 8 is fixed to the front end of the blade holder 9 by an embedded connection structure. The pressure adjustment assembly 5 is connected to the rear end of the blade holder 9 and is used to adjust the contact pressure of the flexible scraper assembly 4 according to the thickness of the material adhering to the belt surface.

[0032] In one embodiment of the present invention, the pressure regulating assembly 5 includes a protective housing 10 with one end fixedly mounted on the support frame 2 and the other end slidably sleeved on the flexible scraper assembly 4. The protective housing 10 contains a pressure spring assembly 11 consisting of multiple stacked disc springs, and a pressure regulating cover plate 12 is fixedly connected to the top end. The pressure regulating assembly 5 also includes an adjusting screw 13, which extends into the protective housing 10 and is fixedly connected to the pressure regulating cover plate 12.

[0033] During bulk cargo loading and unloading operations at ports, various residues easily adhere to the surface of belt conveyors due to the combined effects of the port's unique high humidity, windy environment, and different cargo characteristics. Therefore, this invention features a robust support frame 2 installed above the rear end of the belt conveyor body 1 after material transport, connected by rigid connectors. A scraping mechanism 3, including a flexible scraper assembly 4 and a pressure regulating assembly 5, is located at the front end of the support frame 2, and a cleaning mechanism 6 connected to a reduction motor 7 is positioned at the rear. During operation, when the belt with deposits passes the scraping mechanism 3, the blade 8, made of highly elastic and wear-resistant polymer material, contacts the belt surface with a smoothly rounded curved surface. This material selection and structural design ensures effective removal of deposits without damaging the belt surface due to hard contact. Especially when handling coal or ore with high moisture content, the flexible blade 8 adapts to the slight undulations of the belt surface, fully contacting and scraping away various deposits. The pressure regulating assembly 5 applies adjustable contact pressure to the blade 8 through a disc spring assembly stacked within the protective housing 10. When facing a thicker deposit layer, the operator... Operators can rotate the adjusting screw 13 to drive the pressure regulating cover 12 to compress the disc spring assembly, increasing the spring pressure and thus increasing the contact pressure of the blade 8 on the belt surface to enhance the scraping effect. Conversely, when handling lightly adhered or fine grain-like goods, the adjusting screw 13 can be rotated in the opposite direction to reduce the spring pressure, decrease the contact force, and avoid excessive scraping. Behind the scraping mechanism 3, the cleaning mechanism 6, driven by the geared motor 7, performs secondary treatment on the belt surface after the initial scraping, thoroughly removing residual particles. This specifically solves the problem of cargo adhesion on port belt conveyors, significantly reducing belt running resistance, energy consumption, and belt lifespan, while also reducing maintenance costs and downtime. At the same time, the thorough cleaning effect avoids cross-contamination between different goods, ensuring the quality of the goods. More importantly, the device's adaptive pressure regulation mechanism makes it suitable for various bulk cargo loading and unloading scenarios in ports. Whether it is dry ore, wet coal, or fine grain, the best cleaning effect can be achieved through simple adjustments, thereby comprehensively improving the operational stability and efficiency of the port bulk cargo loading and unloading system.

[0034] In one embodiment of the present invention, the cleaning mechanism 6 includes a cleaning spindle 14 with one end rotatably connected to the support frame 2 and the other end connected to the reduction motor 7. A bristle fixing disc 15 is sleeved on the cleaning spindle 14 along the spindle axis, and bristles 16 are densely embedded on the outer edge of the bristle fixing disc 15.

[0035] In one embodiment of the present invention, the bristles 16 are made of an elastic material, and the vertically downward bristles 16 maintain a small gap with the belt surface when at rest.

[0036] During operation, fine particles and dust remain on the belt surface after the initial treatment by the scraping mechanism 3. If these tiny deposits are not thoroughly removed, they will gradually accumulate and penetrate into the belt's texture, leading to increased surface roughness and changes in the coefficient of friction after long-term operation, thus affecting conveying efficiency and stability. Therefore, this invention includes a cleaning mechanism 6 driven by a geared motor 7 behind the scraping mechanism 3. This mechanism is rotatably connected to the support frame 2 at one end of the cleaning spindle 14 and connected to the output shaft of the geared motor 7 at the other end, forming a stable and reliable transmission structure. When the geared motor 7 starts, the cleaning spindle 14 drives multiple brush bristle fixing discs 15 arranged along its axial direction to rotate synchronously. The elastic material brush bristles 16, densely embedded on the outer edge of the fixing discs, rotate at high speed. Due to the design, the vertically downward-pointing brush bristles 16 maintain a small gap with the belt surface when stationary. When the belt passes the cleaning mechanism 6, the elastic brush bristles 16 extend outward under the centrifugal force of rotation, contacting the belt surface with appropriate pressure. This dynamic contact method ensures cleaning effectiveness while avoiding... This design effectively removes residual materials from the belt, especially when handling fine grain particles or light adhering materials such as coal dust. The rotating brush 16 not only effectively removes residues from the belt surface, but also blows away dust adhering to the belt texture through the weak airflow generated, achieving deep cleaning. When conveying ores or coal with high moisture content, the flexibility of the elastic brush 16 allows it to adapt to uneven areas on the belt surface, ensuring thorough cleaning. This design, by precisely controlling the contact state between the brush 16 and the belt, effectively removes residual materials, prevents belt misalignment and increased energy consumption, and avoids continuous wear on the belt caused by traditional fixed cleaning devices, extending the belt's service life. At the same time, because the brush 16 maintains a gap with the belt when stationary, unnecessary contact wear will not occur when the belt conveyor is temporarily stopped. The overall structure is simple and reliable, easy to maintain, and suitable for the complex and ever-changing operating environment of ports. It significantly improves the continuous operation capability and cleaning efficiency of the belt conveyor system, providing a strong guarantee for the efficient and stable operation of bulk cargo loading and unloading in ports.

[0037] As one embodiment of the present invention, it also includes a desorption mechanism 17, which is installed below the belt conveyor body 1 behind the cleaning mechanism 6; the desorption mechanism 17 includes a vibration motor 18, which is fixedly connected to a vibration transmission plate 19, and the vibration transmission plate 19 extends into the inner side of the belt and contacts the inner side of the belt.

[0038] During operation, although the scraping mechanism 3 and cleaning mechanism 6 have removed most of the surface deposits, some stubborn residues remain due to electrostatic adsorption or tiny particles embedded in the belt texture, making complete removal difficult. Long-term accumulation of these residues leads to uneven tension distribution on the inner side of the belt, accelerating belt aging and increasing energy consumption. Therefore, this invention adds a desorption mechanism 17 behind the cleaning mechanism 6. This mechanism generates high-frequency, low-amplitude vibrations via a vibration motor 18, which transmits the vibration energy to the inner surface of the belt via a vibration transmission plate 19 fixedly connected to it. During operation, when the belt reaches the position of the desorption mechanism 17, the vibration transmission plate 19 maintains stable contact with the inner side of the belt, and the periodic vibration waves generated by the vibration motor 18 are transmitted laterally along the belt. This process generates micro-amplitude, high-frequency vibrations on the belt surface. This vibration effectively breaks down the molecular adhesion and electrostatic forces between residual particles and the belt surface, causing tiny particles embedded in the belt's texture to detach. Especially when handling high-moisture coal or sticky mineral powder, this vibration desorption mechanism effectively removes stubborn deposits that are difficult to remove in the first two cleaning processes, ensuring a thoroughly clean belt surface. At the same time, uniform vibration can also eliminate uneven tension caused by the accumulation of local deposits on the belt, preventing belt misalignment, significantly extending the belt's service life, reducing maintenance frequency and energy consumption, and ensuring the long-term stable operation of the conveyor system by reducing the continuous wear of residues on the belt, thus providing a reliable guarantee for the efficient and continuous operation of bulk cargo loading and unloading at ports.

[0039] In one embodiment of the present invention, the support frame 2 is a rigid frame structure welded together from transverse support beams 20, longitudinal columns 21, and diagonal reinforcing ribs 22. The transverse support beams 20 are arranged parallel to the main beam of the belt conveyor, the longitudinal columns 21 are perpendicularly connected to the transverse support beams 20 and the foundation plane, and the diagonal reinforcing ribs 22 connect the transverse support beams 20 and the longitudinal columns 21 to form a triangular stable structure.

[0040] In one embodiment of the present invention, the surface of the support frame 2 is sandblasted and then coated with an anti-corrosion coating, and each functional mechanism is fixed to the support frame 2 through a standard connection interface.

[0041] During operation, a rigid support frame 2 is constructed from welded transverse support beams 20, longitudinal columns 21, and diagonal reinforcing ribs 22. The transverse support beams 20 are arranged strictly parallel to the main beam of the belt conveyor, ensuring that the functional mechanisms installed on them maintain a constant working distance from the belt surface. The longitudinal columns 21 vertically connect the transverse support beams 20 to the foundation plane, providing stable vertical support force. The diagonal reinforcing ribs 22 connect the transverse support beams 20 and the longitudinal columns 21, forming multiple triangular stable structures. This geometric configuration effectively disperses the strong wind load and equipment vibration in the port, preventing the frame from deforming during long-term use. At the same time, the surface of the support frame 2 is sandblasted to remove the oxide layer and increase the surface roughness, and then coated with multiple layers of anti-corrosion coating, which greatly improves the corrosion resistance in the high-salt and high-humidity environment of the port and extends the service life of the equipment. Each functional mechanism is fixed to the support frame 2 through standard connection interfaces. This design not only ensures the precise installation and positioning of the scraping mechanism 3, cleaning mechanism 6, and desorption mechanism 17, but also facilitates quick disassembly and replacement of parts during daily maintenance.

[0042] The foregoing has shown and described the basic principles, main features, and significant advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the specific embodiments described above. Without departing from the spirit and scope of the present invention, various changes and improvements may be made to adapt to different usage environments and customer needs, and all such changes and improvements fall within the protection scope of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A port cleaning device, comprising a belt conveyor body (1), characterized in that, It also includes a support frame (2) installed above the belt; The scraping mechanism (3) includes a flexible scraper assembly (4) and a pressure regulating assembly (5), wherein the flexible scraper assembly (4) is mounted on the front end of the support frame (2) via the pressure regulating assembly (5); The cleaning mechanism (6) is located behind the scraping mechanism (3) and is connected to the geared motor (7) fixedly installed on the support frame (2); The support frame (2) forms a stable connection at the port transport point through rigid connectors.

2. The port cleaning device according to claim 1, characterized in that: The flexible scraper assembly (4) includes a blade body (8) and a blade holder (9). The blade body (8) is made of a highly elastic and wear-resistant polymer material. The front end of the blade body (8) forms a smooth transition curved surface structure to avoid damaging the belt surface. The blade body (8) is fixed to the front end of the blade holder (9) through an embedded connection structure. The pressure adjustment assembly (5) is connected to the rear end of the blade holder (9) and is used to adjust the contact pressure of the flexible scraper assembly (4) according to the thickness of the material attached to the belt surface.

3. A port cleaning device according to claim 1 or 2, characterized in that: The pressure regulating assembly (5) includes a protective housing (10) with one end fixedly mounted on the support frame (2) and the other end slidably sleeved on the flexible scraper assembly (4). The protective housing (10) contains a pressure spring assembly (11) consisting of multiple stacked disc springs and a pressure regulating cover plate (12) fixedly connected to the top. The pressure regulating assembly (5) also includes an adjusting screw (13), which extends into the protective housing (10) and is fixedly connected to the pressure regulating cover plate (12).

4. A port cleaning device according to claim 1, characterized in that: The cleaning mechanism (6) includes a cleaning spindle (14) with one end rotatably connected to the support frame (2) and the other end connected to the geared motor (7). A bristle fixing disc (15) is sleeved on the cleaning spindle (14) along the spindle axis, and bristles (16) are densely embedded on the outer edge of the bristle fixing disc (15).

5. A port cleaning device according to claim 4, characterized in that: The bristles (16) are made of an elastic material and, when at rest, maintain a small gap with the belt surface.

6. A port cleaning device according to claim 1, characterized in that: It also includes a desorption mechanism (17), which is installed below the belt conveyor body (1) behind the cleaning mechanism (6); the desorption mechanism (17) includes a vibration motor (18), which is fixedly connected to a vibration transmission plate (19), which extends into the inside of the belt and contacts the inside of the belt.

7. A port cleaning device according to claim 1, characterized in that: The support frame (2) is a rigid frame structure welded from transverse support beams (20), longitudinal columns (21) and diagonal reinforcing ribs (22). The transverse support beams (20) are arranged parallel to the main beam of the belt conveyor. The longitudinal columns (21) are vertically connected to the transverse support beams (20) and the foundation plane. The diagonal reinforcing ribs (22) connect the transverse support beams (20) and the longitudinal columns (21) to form a triangular stable structure.

8. A port cleaning device according to claim 7, characterized in that: The surface of the support frame (2) is sandblasted and then coated with an anti-corrosion coating. Each functional mechanism is fixed to the support frame (2) through a standard connection interface.

Images