A coal conveyor cleaning device

Abstract

The application provides a coal conveying machine cleaning device, and relates to the technical field of coal mine conveying equipment. The device comprises a rack, a conveying belt arranged on the rack, a soaking assembly arranged below the rack, a stripping assembly arranged on one side of the soaking assembly, a flushing assembly arranged on the other side of the soaking assembly, and a drying assembly arranged above one side of the flushing assembly. The rack, the conveying belt, the soaking assembly, the stripping assembly and the flushing assembly are used in cooperation to implement multi-stage collaborative cleaning of the return conveying belt. First, the main accumulated substances are scraped by the rubber scraper, then the residues are softened by the soaking dissolving solution, and finally, the conveying belt is subjected to high-pressure flushing on both sides by the U-shaped flushing pipe in cooperation with the booster pump, so that the mechanical stripping, chemical softening and high-pressure flushing are organically combined, and the stubborn accumulated substances with dry and hard or high adhesion can be effectively removed.

Description

Technical Field

[0001] This utility model relates to the field of coal mine conveying equipment technology, and more specifically, to a coal conveyor cleaning device. Background Technology

[0002] Coal conveyors play a crucial role in bulk material transfer in thermal power plants, coal mines, and port terminals. However, in actual operation, the surface of the conveyor belt is prone to adhering to a stubborn residue layer formed by a mixture of coal slurry, coal dust, and water. This residue not only causes safety hazards such as belt misalignment and drum slippage, but also exacerbates dust pollution and increases manual cleaning costs due to spillage along the return route.

[0003] For example, the "Dust Prevention and Cleaning Mechanism and Hopper Anti-clogging Device for a Coal Conveyor" disclosed in Chinese Utility Model Patent (Publication No.: CN219408123U) includes a support assembly and a conveying assembly connected to the support assembly; a dust suppression unit including a spraying assembly and a limiting assembly connected to the spraying assembly; a filtration unit including a cleaning assembly, a filter assembly connected to the cleaning assembly, and a warning assembly connected to the filter assembly; and a hopper, a turntable, and an upper scraper and a lower scraper connected to the turntable. The beneficial effects of this utility model are that the spraying assembly suppresses dust on the coal, the limiting assembly allows for direction adjustment of the spraying assembly, and the cleaning assembly cleans the conveyor belt.

[0004] Regarding the aforementioned technologies, this device has some shortcomings. In actual use, its cleaning components only use cleaning nozzles to perform simple water rinsing on the surface of the conveyor belt, lacking pretreatment methods such as mechanical peeling or physical softening. For dry, hardened, highly adhesive, or stubborn coal slime and dust deposits formed by multiple crushing processes, the simple impact of water flow is insufficient to effectively break down the bonding layer between the deposits and the conveyor belt surface. As a result, such deposits cannot be completely removed, and long-term accumulation will further reduce conveying efficiency and aggravate equipment wear. The overall cleaning effect is difficult to meet the actual working conditions.

[0005] Therefore, we have made improvements to this and proposed a coal conveyor cleaning device. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a coal conveyor cleaning device, which solves the problems mentioned in the background.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A coal conveyor cleaning device includes a frame, a conveyor belt on the frame, an immersion assembly below the frame, a stripping assembly on one side of the immersion assembly, a rinsing assembly on the other side of the immersion assembly, and a drying assembly above one side of the rinsing assembly.

[0009] The soaking assembly includes a support frame fixedly installed at the bottom of the frame, a soaking tank fixedly installed at the bottom end of the support frame, a first guide roller rotatably installed on the support frame inside the soaking tank, a second guide roller provided on one side of the top of the soaking tank, and the conveyor belt passing sequentially below the first guide roller and above the second guide roller.

[0010] As a preferred technical solution of this application, the peeling assembly includes a vertical rail fixedly installed on one side of the soaking tank, a lead screw rotatably installed inside the vertical rail, an adjusting block sleeved on the outer wall of the lead screw, the adjusting block slidably installed on the vertical rail, a scraper fixedly installed on one side of the adjusting block, a servo motor fixedly installed at the top of the vertical rail, the drive end of the servo motor passing through the vertical rail and extending into the interior of the vertical rail, and the drive end of the servo motor being fixedly connected to the top of the lead screw.

[0011] As a preferred technical solution of this application, the rinsing assembly includes a cleaning tank fixedly installed on one side of the soaking tank. The cleaning tank has symmetrically distributed third guide rollers rotatably installed inside. The conveyor belt passes under the two third guide rollers in sequence. A U-shaped rinsing pipe is fixedly installed inside the cleaning tank. Several nozzles are fixedly installed on the outer wall of the U-shaped rinsing pipe. One end of the U-shaped rinsing pipe is fixedly installed on the front of the cleaning tank with an external connecting pipe. A booster pump is installed on the external connecting pipe. A drain pipe is fixedly installed on the lower side of the front side of the cleaning tank.

[0012] As a preferred technical solution of this application, the drying assembly includes a mounting frame fixedly installed on one side of the top of the cleaning box, and symmetrically distributed drying boxes are fixedly installed on the mounting frame. Several ventilation holes are provided on the opposite sides of the two drying boxes, and a connecting pipe is fixedly installed between the front ends of the two drying boxes.

[0013] As a preferred technical solution of this application, the adjusting block is provided with a threaded hole adapted to the lead screw, and the adjusting block is threadedly connected to the lead screw through the threaded hole.

[0014] As a preferred technical solution of this application, the conveyor belt passes between the two drying boxes.

[0015] As a preferred technical solution of this application, the scraper is made of rubber.

[0016] As a preferred technical solution of this application, the nozzles on the outer wall of the U-shaped flushing pipe are a high-pressure nozzle array, and the nozzles are arranged in a fan shape on the outer wall of the U-shaped flushing pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In the scheme of this application:

[0019] 1. By using the frame, conveyor belt, soaking component, stripping component, and rinsing component in combination, a multi-stage synergistic cleaning process is implemented on the return conveyor belt: First, the main deposits are forcefully scraped off by a rubber scraper, then the residues are softened by soaking in a dissolving solution, and finally, the conveyor belt is high-pressure rinsed on both sides by a U-shaped rinsing pipe and a booster pump. This achieves an organic combination of mechanical stripping, softening, and high-pressure rinsing, which can effectively remove dry, hardened, or highly adhesive stubborn deposits, significantly improve the thoroughness of cleaning, ensure the cleanliness of the conveyor belt surface, and meet the strict requirements of actual working conditions for cleaning effect.

[0020] 2. By setting up the drying components, the conveyor belt is subjected to double-sided hot air drying after the rinsing components. Two drying boxes are symmetrically arranged on both sides of the conveyor belt. Hot air is blown evenly to both sides of the conveyor belt through the ventilation holes, which can quickly remove residual water stains on the surface of the conveyor belt, effectively ensure the dryness of the conveyor belt, and avoid relative sliding between the conveyor belt and coal or a decrease in conveying stability due to water stains, thereby significantly improving the stability and reliability of subsequent coal conveying operations. Attached Figure Description

[0021] Figure 1 This application provides a three-dimensional structural schematic diagram of a coal conveyor cleaning device;

[0022] Figure 2 This is a bottom view of a coal conveyor cleaning device provided in this application;

[0023] Figure 3 This application provides a schematic diagram of the structure of the soaking component and the rinsing component in a coal conveyor cleaning device;

[0024] Figure 4 This application provides a schematic diagram of the structure of a stripping component in a coal conveyor cleaning device;

[0025] Figure 5 This application provides a schematic diagram of the structure of a drying component in a coal conveyor cleaning device;

[0026] Figure 6 This is a schematic diagram of the structure of a U-shaped flushing pipe in a coal conveyor cleaning device provided in this application.

[0027] The image shows:

[0028] 1. Frame; 2. Conveyor belt; 3. Soaking assembly; 4. Peeling assembly; 5. Rinsing assembly; 6. Drying assembly; 7. Support frame; 8. First guide roller; 9. Second guide roller; 10. Cleaning tank; 11. Third guide roller; 12. U-shaped rinsing pipe; 13. External pipe; 14. Booster pump; 15. Drain pipe; 16. Vertical rail; 17. Lead screw; 18. Adjusting block; 19. Servo motor; 20. Scraper; 21. Mounting frame; 22. Drying tank; 23. Connecting pipe; 24. Soaking tank. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0031] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] Example 1

[0034] Please refer to Figures 1-6 A coal conveyor cleaning device includes a frame 1, a conveyor belt 2 on the frame 1, an immersion component 3 below the frame 1, a stripping component 4 on one side of the immersion component 3, a rinsing component 5 on the other side of the immersion component 3, and a drying component 6 above one side of the rinsing component 5.

[0035] The soaking assembly 3 includes a support frame 7 fixedly installed at the bottom of the frame 1. A soaking tank 24 is fixedly installed at the bottom of the support frame 7. A first guide roller 8 is rotatably installed on the support frame 7 inside the soaking tank 24. A second guide roller 9 is provided on one side of the top of the soaking tank 24. The conveyor belt 2 passes under the first guide roller 8 and above the second guide roller 9 in sequence.

[0036] Furthermore, the stripping assembly 4 includes a vertical rail 16 fixedly installed on one side of the soaking tank 24. A lead screw 17 is rotatably installed inside the vertical rail 16. An adjusting block 18 is sleeved on the outer wall of the lead screw 17 and slidably installed on the vertical rail 16. A scraper 20 is fixedly installed on one side of the adjusting block 18. A servo motor 19 is fixedly installed at the top of the vertical rail 16. The drive end of the servo motor 19 passes through the vertical rail 16 and extends into the interior of the vertical rail 16. The drive end of the servo motor 19 is fixedly connected to the top of the lead screw 17. The stripping assembly 4 drives the lead screw 17 to rotate through the servo motor 19, which drives the adjusting block 18, which is threaded to the lead screw 17 and slidably installed on the vertical rail 16, to move stably vertically. This precisely controls the contact pressure between the scraper 20 fixed on one side of the adjusting block 18 and the surface of the conveyor belt 2, achieving controllable and powerful scraping of the accumulated material.

[0037] Furthermore, the rinsing assembly 5 includes a cleaning tank 10 fixedly installed on one side of the soaking tank 24. Symmetrically distributed third guide rollers 11 are rotatably mounted inside the cleaning tank 10. The conveyor belt 2 passes sequentially under two of the third guide rollers 11. A U-shaped rinsing pipe 12 is fixedly installed inside the cleaning tank 10. Several nozzles are fixedly installed on the outer wall of the U-shaped rinsing pipe 12. An external connecting pipe 13 is fixedly installed at one end of the U-shaped rinsing pipe 12 on the front of the cleaning tank 10. A booster pump 14 is installed on the external connecting pipe 13. A drain pipe 15 is fixedly installed below the front side of the cleaning tank 10. Under the pressure of water supply from the external connecting pipe 13 and the booster pump 14, the conveyor belt 2 is subjected to double-sided high-pressure rinsing, and wastewater is promptly discharged through the drain pipe 15.

[0038] Furthermore, the adjusting block 18 has a threaded hole that matches the lead screw 17, and the adjusting block 18 is threadedly connected to the lead screw 17 through the threaded hole. This accurately converts the rotational motion of the lead screw 17 into the linear displacement of the adjusting block 18, ensuring stable adjustment and reliable positioning of the contact pressure between the scraper 20 and the conveyor belt 2.

[0039] Furthermore, the scraper 20 is made of rubber. This allows it to make strong scraping contact with the surface of the conveyor belt 2 while avoiding scratches or excessive wear on the conveyor belt 2.

[0040] Furthermore, the nozzles on the outer wall of the U-shaped flushing pipe 12 are a high-pressure nozzle array, arranged in a fan shape on the outer wall of the U-shaped flushing pipe 12. This enables wide-angle coverage and high-pressure impact on both sides of the conveyor belt 2, eliminating flushing dead angles and significantly improving the stripping efficiency and cleaning uniformity of stubborn deposits.

[0041] Example 2

[0042] The coal conveyor cleaning device provided in Embodiment 1 is further optimized. Specifically, the drying component 6 includes a mounting frame 21 fixedly installed on one side of the top of the cleaning box 10. The mounting frame 21 is fixedly installed with symmetrically distributed drying boxes 22. Several ventilation holes are provided on the opposite sides of the two drying boxes 22. A connecting pipe 23 is fixedly installed between the front ends of the two drying boxes 22.

[0043] Furthermore, the conveyor belt 2 passes between the two drying chambers 22. This enables simultaneous drying of both sides of the conveyor belt 2, effectively improving drying efficiency and uniformity, and avoiding the problem of incomplete drying caused by single-sided drying.

[0044] The usage process of the coal conveyor cleaning device provided by this utility model is as follows:

[0045] In use, first, an appropriate amount of soaking solution is injected into the soaking tank 24, and the external pipe 13 is connected to the cleaning water supply pipe. Then, the servo motor 19 on the stripping assembly 4 is started. The drive end of the servo motor 19 drives the lead screw 17 to rotate. Through the threaded transmission between the lead screw 17 and the adjusting block 18, and the sliding guide relationship between the adjusting block 18 and the vertical rail 16, the adjusting block 18 achieves stable vertical displacement. The movement of the adjusting block 18 then drives the scraper 20 to move, so that the scraper 20 keeps in contact with the outer surface of the conveyor belt 2 in the return position. When the conveyor belt 2 on the frame 1 starts to transport coal, the coal is fed from the right end of the conveyor belt 2 and unloaded from the left end. During the return process, the conveyor belt 2 first passes through the stripping assembly 4. At this time, the scraper 20 is in direct contact with the conveyor belt 2, and the scraper 20 is in direct contact with the conveyor belt 2. The deposits adhering to the surface are forcefully scraped off, and the scraped deposits roll down the outer surface of the scraper 20 to the ground below the stripping assembly 4. After the initial stripping, the conveyor belt 2 enters the soaking tank 24 under the guidance of the first guide roller 8. The soaking solution in the soaking tank 24 comes into full contact with the conveyor belt 2, softening the deposits remaining on its surface. After softening, the conveyor belt 2 enters the cleaning tank 10 of the rinsing assembly 5 under the guidance of the second guide roller 9 and the third guide roller 11. Specifically, the U-shaped rinsing pipe 12 is arranged in a U-shape around the upper and lower sides of the conveyor belt 2. High-pressure nozzle arrays are installed on its two opposite side walls. The two third guide rollers 11 stably guide the conveyor belt 2 to the middle position of the U-shaped rinsing pipe 12, so that both sides of the conveyor belt 2 are directly facing the nozzles on the two side walls of the U-shaped rinsing pipe 12. The booster pump 14 pressurizes the cleaning water and sends it into the U-shaped flushing pipe 12. The water flow is sprayed from both sides of the nozzle simultaneously to achieve synchronous high-pressure flushing of both sides of the conveyor belt 2. Due to the softening effect of soaking, the residual deposits on the conveyor belt 2 have become loose and can be more easily removed under the impact of the flushing component 5. After flushing, the conveyor belt 2 is output from the cleaning tank 10.

[0046] After the conveyor belt 2 has undergone double-sided high-pressure washing by the washing assembly 5, the conveyor belt 2 then enters the area between the two drying boxes 22 in the drying assembly 6. At this time, the connecting pipe 23 has been pre-connected to the external drying equipment. The hot air output by the drying equipment is delivered to the interior of the two drying boxes 22 through the connecting pipe 23, and is evenly blown to both sides of the conveyor belt 2 through the ventilation holes opened on the drying box 22, thereby achieving rapid drying of the conveyor belt 2. This effectively ensures the dryness of the surface of the conveyor belt 2, avoids relative sliding between the conveyor belt 2 and the coal or a decrease in conveying stability due to residual water stains, and ensures the smooth and reliable operation of subsequent coal conveying.

[0047] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A coal conveyor cleaning device, characterized in that, Includes a frame (1), on which a conveyor belt (2) is provided, a soaking component (3) is provided below the frame (1), a peeling component (4) is provided on one side of the soaking component (3), a rinsing component (5) is provided on the other side of the soaking component (3), and a drying component (6) is provided above one side of the rinsing component (5). The soaking assembly (3) includes a support frame (7) fixedly installed at the bottom of the frame (1). A soaking tank (24) is fixedly installed at the bottom end of the support frame (7). A first guide roller (8) is rotatably installed on the support frame (7) inside the soaking tank (24). A second guide roller (9) is provided on one side of the top of the soaking tank (24). The conveyor belt (2) passes under the first guide roller (8) and above the second guide roller (9) in sequence.

2. The coal conveyor cleaning device according to claim 1, characterized in that, The peeling assembly (4) includes a vertical rail (16) fixedly installed on one side of the soaking tank (24). A lead screw (17) is rotatably installed inside the vertical rail (16). An adjusting block (18) is sleeved on the outer wall of the lead screw (17). The adjusting block (18) is slidably installed on the vertical rail (16). A scraper (20) is fixedly installed on one side of the adjusting block (18). A servo motor (19) is fixedly installed at the top of the vertical rail (16). The driving end of the servo motor (19) passes through the vertical rail (16) and extends into the interior of the vertical rail (16). The driving end of the servo motor (19) is fixedly connected to the top of the lead screw (17).

3. The coal conveyor cleaning device according to claim 1, characterized in that, The rinsing assembly (5) includes a cleaning tank (10) fixedly installed on one side of the soaking tank (24). The cleaning tank (10) has symmetrically distributed third guide rollers (11) rotatably installed inside. The conveyor belt (2) passes under the two third guide rollers (11) in sequence. A U-shaped rinsing pipe (12) is fixedly installed inside the cleaning tank (10). Several nozzles are fixedly installed on the outer wall of the U-shaped rinsing pipe (12). An outer pipe (13) is fixedly installed at one end of the U-shaped rinsing pipe (12) on the front of the cleaning tank (10). A booster pump (14) is provided on the outer pipe (13). A drain pipe (15) is fixedly installed below the front side of the cleaning tank (10).

4. The coal conveyor cleaning device according to claim 3, characterized in that, The drying assembly (6) includes a mounting bracket (21) fixedly installed on one side of the top of the cleaning box (10). The mounting bracket (21) is fixedly installed with symmetrically distributed drying boxes (22). Each of the two drying boxes (22) has several ventilation holes on its opposite side. A connecting pipe (23) is fixedly installed between the front ends of the two drying boxes (22).

5. A coal conveyor cleaning device according to claim 2, characterized in that, The adjusting block (18) has a threaded hole that matches the lead screw (17), and the adjusting block (18) is threadedly connected to the lead screw (17) through the threaded hole.

6. A coal conveyor cleaning device according to claim 4, characterized in that, The conveyor belt (2) passes between the two drying boxes (22).

7. A coal conveyor cleaning device according to claim 2, characterized in that, The scraper (20) is made of rubber.

8. A coal conveyor cleaning device according to claim 3, characterized in that, The nozzles on the outer wall of the U-shaped flushing pipe (12) are a high-pressure nozzle array, and the nozzles are arranged in a fan shape on the outer wall of the U-shaped flushing pipe (12).

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