Belt cleaner

Abstract

A belt conveyor cleaning device belongs to the technical field of belt conveyor in metallurgical industry. The technical scheme is that the cleaning assembly (16) is provided with a cleaning belt (1), a passive roller (3), a variable frequency speed regulation motor (5) and a driving roller (19), the cleaning belt (1) is annular, the outer surface is covered with a brush (2), the annular cleaning belt (1) is arranged on the passive roller (3) and the driving roller (19), the driving roller (19) is connected with the variable frequency speed regulation motor (5), the brush (2) on the outer surface of the cleaning belt (1) is in contact with the lower surface of the return belt (15) of the belt conveyor, and the running direction of the upper surface of the cleaning belt is opposite to the running direction of the return belt of the belt conveyor. The utility model has the advantages that the cleaning belt is in flexible contact with the belt in a large area, material can be cleaned more comprehensively and carefully, the cleaning belt is in moderate contact with the belt, the abrasion of the belt, the roller and the carrier roller is reduced, the equipment maintenance efficiency is greatly improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to a belt conveyor cleaning device, belonging to the technical field of belt conveyors in the metallurgical industry. Background Technology

[0002] Belt conveyor cleaning devices are an indispensable and important component of belt conveyor systems. They are mainly used to remove residual materials from the belt surface, ensuring the efficient and stable operation of the belt conveyor. Their core function is to prevent material residue from causing belt misalignment, wear, and other malfunctions, thereby reducing equipment maintenance costs and preventing material spillage that leads to environmental pollution and waste. Currently, belt conveyor cleaning devices are mainly divided into several types, each with its unique working principle and applicable scenarios. Scraper cleaners are a common type, which use scrapers that fit closely against the belt surface to remove material through scraping action. Scrapers are made of various materials, such as rubber and polyurethane. Rubber scrapers have good elasticity, adapting to slight belt undulations and reducing damage to the belt; polyurethane scrapers have higher hardness and are suitable for cleaning materials with high viscosity or coarse particle size. For materials with low viscosity or fine particles, rotary cleaners are generally used. Rotary cleaners use rotating brush rollers or bristles to brush material off the belt surface. This type of sweeper offers good cleaning performance with minimal wear on the belt, and is commonly used in applications requiring high cleaning efficiency, such as belt conveyors transporting fine materials. Examples include Chinese patent applications CN202420775712.X ("A Brush Sweeper for a Belt Conveyor") and CN201410226518.7 ("Brush Roller Type Belt Conveyor Sweeper"). Existing brush sweepers typically use a single roller with brushes to clean the belt surface, resulting in a small contact area and low efficiency. Furthermore, the brushes do not make close contact with the belt surface, affecting the cleaning effect. Utility Model Content

[0003] The purpose of this invention is to provide a belt conveyor cleaning device that improves cleaning efficiency by having the brush cleaning belt make large-area contact with the belt, while using a spring to apply pressure to the cleaning belt to enhance the cleaning effect. This device efficiently and accurately cleans materials stuck to the belt conveyor, while reducing equipment wear and tear, and solves the aforementioned technical problems existing in the prior art.

[0004] The technical solution of this utility model is: A belt conveyor cleaning device includes a support frame and a cleaning assembly mounted on the support frame. The cleaning assembly is located below the return belt of the belt conveyor. The cleaning assembly includes a cleaning belt, a passive roller, a variable frequency speed control motor, and a driving roller. The cleaning belt is annular and its outer surface is covered with brushes. The annular cleaning belt is mounted on the passive roller and the driving roller. The driving roller is connected to the variable frequency speed control motor. The brushes on the outer surface of the cleaning belt are in contact with the lower surface of the return belt of the belt conveyor. The upper surface of the cleaning belt runs in the opposite direction to the return belt of the belt conveyor.

[0005] The cleaning assembly on the bracket is provided with an adjustment mechanism below it. The adjustment mechanism includes a bracket, a bottom beam, an adjustment rod, a spring, and a support plate. The bottom beam is arranged horizontally at the bottom of the bracket, and the adjustment rod is arranged vertically upward on the bottom beam. The upper part of the adjustment rod slides in the bracket, and a spring is sleeved on the adjustment rod. The two ends of the spring are in contact with the bottom beam and the bracket, respectively. The top of the bracket is provided with a horizontally arranged support plate, which rests on the lower surface of the working part of the cleaning belt.

[0006] The bracket is equipped with an L-shaped support plate, which is connected to the bracket and the support plate together.

[0007] The width of the sweeping belt is the same as the width of the return belt. This invention can effectively conform to the surface of the return belt, adapt to complex contours, and ensure thorough cleaning. The relative movement between the cleaning belt and the return belt increases the relative speed and friction, guaranteeing the cleaning effect. The adjustment mechanism uses a spring to adjust the distance between the upper surface brush of the cleaning belt 1 and the lower surface of the return belt of the conveyor, ensuring they are in contact.

[0008] The beneficial effects of this invention are as follows: In terms of cleaning effect, the sweeping belt makes large-area flexible contact with the belt, which, compared to the localized rigid contact of the scraper, allows for more comprehensive and meticulous removal of materials. This is especially beneficial for sticky materials or materials in the fine depressions on the belt surface, resulting in a significantly improved cleaning effect. Regarding equipment wear, the gentle contact between the sweeping belt and the belt greatly reduces wear on the belt, rollers, and idlers. In terms of ease of adjustment, the pressure between the sweeping belt and the return belt can be automatically adjusted by a spring, eliminating the need for manual operation, greatly improving equipment maintenance efficiency and reducing maintenance costs. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the cleaning component structure according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the overall embodiment of the present utility model; Figure 4 This is a schematic diagram of the receiving hopper and unloading valve according to an embodiment of the present utility model; In the diagram: 1. Sweeping belt; 2. Brush; 3. Passive roller; 4. Bearing 1; 5. Variable frequency speed control motor; 6. Bracket; 7. Support; 8. Spring; 9. Adjusting rod; 10. Bucket body; 11. Lower opening; 12. Inlet; 13. Valve body; 14. Outlet; 15. Return belt; 16. Sweeping assembly; 17. Receiving hopper; 18. Unloading valve; 19. Active roller; 20. Bottom beam; 21. L-shaped support plate; 22. Support plate; 23. Bolt 1; 24. Bolt 2. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings.

[0011] A belt conveyor cleaning device includes a support frame 7 and a cleaning assembly 16 mounted on the support frame. The cleaning assembly 16 is located below the return belt 15 of the belt conveyor. The cleaning assembly 16 includes a cleaning belt 1, a passive roller 3, a variable frequency speed control motor 5, and an active roller 19. The cleaning belt 1 is annular and its outer surface is covered with brushes 2. The annular cleaning belt 1 is mounted on the passive roller 3 and the active roller 19. The active roller 19 is connected to the variable frequency speed control motor 5. The brushes 2 on the outer surface of the cleaning belt 1 are in contact with the lower surface of the return belt 15 of the belt conveyor. The running direction of the upper surface of the cleaning belt 1 is opposite to the running direction of the return belt 15 of the belt conveyor.

[0012] The cleaning assembly 16 on the bracket 7 is provided with an adjustment mechanism below it. The adjustment mechanism includes a bracket 6, a bottom beam 20, an adjustment rod 9, a spring 8, and a support plate 22. The bracket 7 has a horizontally arranged bottom beam 20 at its lower part, and a vertically arranged adjustment rod 9 is provided on the bottom beam 20. The upper part of the adjustment rod 9 slides in the bracket 6. A spring 8 is sleeved on the adjustment rod 9, and the two ends of the spring are in contact with the bottom beam 20 and the bracket 6, respectively. The bracket 6 has a horizontally arranged support plate 22 at its top, and the support plate 22 rests on the lower surface of the working part of the cleaning belt 1.

[0013] The bracket 6 is provided with an L-shaped support plate 21, which is connected to the bracket 22 together with the bracket.

[0014] The top of the bracket 6 is fixedly connected to the plate 22 by bolt 23.

[0015] The L-shaped support plate 21 is fixedly connected to the support plate 22 by bolt 24.

[0016] The sweeping belt 1 is made of a material with high wear resistance and flexibility. The sweeping belt 1 is mounted around the passive roller 3 and the active roller 19. The passive roller 3 and the active roller 19 are mounted on the top of the bracket 7 through bearings. The active roller 19 is connected to the variable frequency speed control motor 5. The rotation of the active roller 19 drives the sweeping belt 1 to rotate cyclically. The brush on the upper surface of the sweeping belt 1 is in contact with the lower surface of the return belt 15 of the conveyor belt. The adjustment mechanism uses a spring to adjust the distance between the brush on the upper surface of the sweeping belt 1 and the lower surface of the return belt of the conveyor belt, ensuring that they are in contact.

[0017] The brush of the sweeping belt 1 is a high-density, high-elasticity brush that is tightly bonded to the sweeping belt substrate. The cleaning belt 1 is made of composite rubber material. The passive roller 3 and the active roller 19 are high-precision deep groove ball bearings, and the surfaces of the passive roller 3 and the active roller 19 are hard chrome plated. The cleaning assembly 16 is provided with a receiving hopper 17 and a discharge valve 18 below it. The receiving hopper 17 includes a hopper body 10. The upper opening of the hopper body 10 matches the cleaning belt 1. The lower opening 11 of the hopper body 10 is connected to the inlet 12 of the discharge valve 18. The valve body 13 of the discharge valve 18 is provided with an outlet 14.

[0018] The hopper is streamlined with a funnel-shaped opening at the top, which is 200-300mm wider than the return belt 15. The bottom narrows to form an outlet. A receiving hopper is provided at the bottom, with a wide, funnel-shaped opening at the top, which can maximize the collection of swept material and effectively reduce material spillage.

[0019] The width of the sweeping belt 1 is the same as the width of the return belt. The bracket 7 is made of high-strength steel. The unloading valve 18 is controlled by electric or manual means. The brushes 2 on the surface of the sweeping belt 1 can be replaced after they wear down to a certain extent during use.

[0020] The adjustment mechanism can automatically adjust the pressure of the cleaning belt 1 on the belt 15 according to the vibration and impact during the operation of the belt conveyor. The spring acts as a buffer to ensure that the cleaning belt always adheres to the return belt with a constant pressure during operation, which not only ensures the cleaning effect, but also avoids damage to the belt due to excessive pressure.

[0021] This invention can effectively fit the surface of the return belt, adapt to complex contours, ensure thorough cleaning, and the relative movement between the cleaning belt and the return belt increases the relative speed and friction, thus guaranteeing the cleaning effect.

Claims

1. A belt conveyor cleaning device, characterized in that: The system includes a bracket (7) and a cleaning assembly (16) mounted on the bracket. The cleaning assembly (16) is located below the return belt (15) of the conveyor belt. The cleaning assembly (16) includes a cleaning belt (1), a passive roller (3), a variable frequency speed control motor (5), and an active roller (19). The cleaning belt (1) is annular and its outer surface is covered with a brush (2). The annular cleaning belt (1) is mounted on the passive roller (3) and the active roller (19). The active roller (19) is connected to the variable frequency speed control motor (5). The brush (2) on the outer surface of the cleaning belt (1) is in contact with the lower surface of the return belt (15) of the conveyor belt. The running direction of the upper surface of the cleaning belt (1) is opposite to the running direction of the return belt (15) of the conveyor belt.

2. The belt conveyor cleaning device according to claim 1, characterized in that: The cleaning assembly (16) on the bracket (7) is provided with an adjustment mechanism below it. The adjustment mechanism includes a bracket (6), a bottom beam (20), an adjustment rod (9), a spring (8), and a support plate (22). The bracket (7) is provided with a horizontally arranged bottom beam (20) at the bottom. The bottom beam (20) is provided with a vertically arranged adjustment rod (9) at the top. The upper part of the adjustment rod (9) slides in the bracket (6). The spring (8) is sleeved on the adjustment rod (9). The two ends of the spring are in contact with the bottom beam (20) and the bracket (6) respectively. The bracket (6) is provided with a horizontally arranged support plate (22) at the top. The support plate (22) rests on the lower surface of the working part of the cleaning belt (1).

3. The belt conveyor cleaning device according to claim 2, characterized in that: The bracket (6) is provided with an L-shaped support plate (21), which is connected to the bracket (22) together with the bracket.

Images