Dust suppression device of coal conveyor

Abstract

The utility model discloses a dust suppression device for a coal conveyor, which effectively realizes a better dust suppression effect and comprises a conveyor belt driven by the coal conveyor and used for conveying coal, a collecting box for collecting pulverized coal is arranged on the lower side of the conveyor belt, two rollers are abutted against the lower side of the conveyor belt, and the rollers are arranged on the lower side of the conveyor belt. The lower side of each roller is provided with a scraping plate used for scraping coal powder on the outer side of the roller, a movable adjusting plate is arranged in the collecting box, the bottom of each scraping plate is rotationally connected with the adjusting plate, and a spraying mechanism used for dust suppression is arranged in the collecting box. The device is simple and convenient to operate, the purpose of conveniently cleaning the conveying belt is effectively achieved, a worker can conveniently install the device and conveniently operate the device, the function of adjusting the pressing force is added, and collected coal ash can be conveniently removed.

Description

Technical Field

[0001] This utility model belongs to the field of coal conveyor technology and relates to a dust suppression device for coal conveyors. Background Technology

[0002] Power plants are factories that produce electricity. Electricity can be produced using wind power, hydropower, and chemical power generation, but my country's main electricity production still relies on thermal power generation through burning coal.

[0003] During the coal conveying process, coal conveyors are generally used for transportation. However, during the conveying process, coal dust, small coal lumps, and other coal ash remain on the working surface of the conveyor belt. If these are not removed at the discharge end of the coal conveyor, they will continue to be transported back and forth, causing coal dust to fly around the conveyor area. Therefore, a coal conveyor dust suppression device is needed to solve the above problem by performing dust suppression operations on the surface of the conveyor belt. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a dust suppression device for coal conveyors, which effectively solves the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A dust suppression device for a coal conveyor includes a conveyor belt driven by a coal conveyor for conveying coal. A collection box for collecting coal dust is provided on the lower side of the conveyor belt. Two rollers abut against the lower side of the conveyor belt. Each roller has a scraper on its lower side for scraping off coal dust on the outside of the roller. A movable adjusting plate is provided inside the collection box. The bottom of each scraper is rotatably connected to the adjusting plate. A dust suppression spraying mechanism is provided inside the collection box.

[0007] Preferably, a connecting block is fixedly connected to each of the left and right sides of the scraper, and a connecting hole is opened in the middle of each connecting block. A rotating block is fixedly connected to each of the left and right sides of each roller, and each rotating block is rotatably connected to the corresponding connecting hole through a bearing.

[0008] Preferably, a power block is fixedly connected to the bottom of each scraper, and the lower side of each power block is rotatably connected to the adjusting plate.

[0009] Preferably, the lower side of the conveyor belt is provided with a fixed rod that is fixedly connected to the coal conveyor, and a telescopic rod is rotatably connected to the front side of the fixed rod. The moving end of the telescopic rod is rotatably connected to the rear side of the adjusting plate.

[0010] Preferably, the spraying mechanism includes a water inlet pipe and a plurality of spray nozzles. The side of the water inlet pipe near the collection box is connected to a connecting pipe, and the water inlet end of each spray nozzle passes through the side wall of the collection box and is connected to the connecting pipe.

[0011] Preferably, a converging box is fixedly connected to the lower side of the collection box, an auger shaft is rotatably connected to the bottom of the converging box, a power motor is fixedly connected to the outer side of the converging box, and the output shaft of the power motor passes through the side wall of the converging box and is coaxially and fixedly connected to the auger shaft.

[0012] Preferably, the side wall of the collection box is provided with a discharge port, and a cleaning hopper is provided on the outside of the discharge port.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model has an adjusting plate. During use, the position of the scraper and the roller can be adjusted by moving the position of the adjusting plate, so that the roller can always be in contact with the conveyor belt, which can not only achieve the tensioning effect, but also increase the coal ash suppression effect.

[0015] 2. This utility model has a spraying mechanism that can continuously spray the outer surface of the roller to keep it moist, thereby increasing the inhibition effect on coal ash. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is an exploded structural diagram of the connecting block and the roller in this utility model.

[0018] Figure 3 This is a schematic diagram of the spraying mechanism in this utility model.

[0019] Figure 4 This is a schematic diagram of the fitting structure of the adjusting plate in this utility model.

[0020] In the diagram: 1. Conveyor belt; 2. Collection box; 3. Roller; 4. Scraper; 5. Adjusting plate; 6. Spraying mechanism; 7. Connecting block; 8. Connecting hole; 9. Rotating block; 10. Power block; 11. Fixed rod; 12. Telescopic rod; 13. Water inlet pipe; 14. Spray nozzle; 15. Connecting pipe; 16. Converging box; 17. Screw shaft; 18. Power motor; 19. Discharge port; 20. Cleaning hopper; 21. Eccentric hole. Detailed Implementation

[0021] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] The following is in conjunction with the appendix Figures 1 to 4 The specific embodiments of this utility model will be described in further detail.

[0023] Depend on Figures 1 to 4 As shown, this utility model includes a conveyor belt 1 driven by a coal conveyor for conveying coal. In order to facilitate the cleaning of the conveyor belt 1, a collection box 2 for collecting coal dust is provided on the lower side of the conveyor belt 1. Two rollers 3 are abutted on the lower side of the conveyor belt 1. Each roller 3 is provided with a scraper 4 for scraping off the coal dust on the outside of the roller 3. The scraper 4 abuts against the outside of the roller 3. A movable adjusting plate 5 is provided inside the collection box 2. The bottom of each scraper 4 is rotatably connected to the adjusting plate 5. A dust suppression spraying mechanism 6 is provided inside the collection box 2.

[0024] It should be noted that in this embodiment, the coal conveyor is a common horizontal trough belt conveyor used for conveying coal. It consists of a conveyor belt 1, a drive device, and a roller. It is existing technology and will not be described in detail here. The conveyor belt 1 is the belt on the outside of the coal conveyor used for conveying coal.

[0025] In use, the two rollers 3 are set on the lower side of the coal end of the conveyor belt 1 and are always in contact with the working surface of the conveyor belt 1. After the conveyor belt 1 transports coal, its working surface will be covered with coal powder or small coal lumps. If they are not treated, the entire working area of ​​the conveyor belt 1 will be covered with coal dust. Through the contact between the rollers 3 and the working surface of the conveyor belt 1, the coal powder, especially the small coal lumps, can be picked off the conveyor belt 1. The coal powder can be picked off the conveyor belt 1 or compacted into coal powder clumps, which can effectively reduce the occurrence of coal dust flying. The spraying mechanism 6 can spray the outer surface of the rollers 3 at all times to keep it moist, which can increase the suppression effect of coal dust. In use, the position of the scraper 4 and the rollers 3 can be adjusted by moving the position of the adjusting plate 5, so that the rollers 3 can always be in contact with the conveyor belt 1, which can not only achieve the tensioning effect, but also increase the suppression effect of coal dust.

[0026] Furthermore, by Figures 1 to 4As shown, in order to facilitate the installation of the device by the staff, a connecting block 7 is fixedly connected to each of the left and right sides of the scraper 4. A connecting hole 8 is opened in the middle of each connecting block 7. A rotating block 9 is fixedly connected to each of the left and right sides of each roller 3. Each rotating block 9 is rotatably connected to the corresponding connecting hole 8 through a bearing.

[0027] It should be noted that each connecting block 7 is also provided with an eccentric hole 21 in the middle. The axis of the eccentric hole 21 does not coincide with the axis of the corresponding roller 3. A fixing pin that matches the eccentric hole 21 is welded to the lower side of the coal conveyor. Each connecting block 7 is rotatably connected to the coal conveyor through the fixing pin.

[0028] In use, the roller 3 can rotate relative to the connecting block 7 through the connecting hole 8, thereby enabling the removal of ash from the coal at the working face of the conveyor belt 1.

[0029] Furthermore, by Figures 1 to 4 As shown, to facilitate operation by staff, a power block 10 is fixedly connected to the bottom of each scraper 4, and the lower side of each power block 10 is rotatably connected to the adjusting plate 5.

[0030] Furthermore, by Figures 1 to 4 As shown, in order to facilitate the adjustment of the clamping force, a fixed rod 11 is provided on the lower side of the conveyor belt 1, which is fixedly connected to the coal conveyor. A telescopic rod 12 is rotatably connected to the front side of the fixed rod 11, and the moving end of the telescopic rod 12 is rotatably connected to the rear side of the adjusting plate 5.

[0031] It should be noted that the telescopic rod 12 can be selected from one of the following: hydraulic cylinder, electric telescopic rod 12, or pneumatic cylinder. The specific choice can be made by the staff according to the actual situation.

[0032] In use, when the length of the telescopic rod 12 changes, the adjustment plate 5 will drive the power block 10 to move, thereby adjusting the angle of the scraper 4 and the connecting block 7. At this time, since the connecting block 7 rotates along the eccentric hole 21, and the eccentric hole 21 does not coincide with the axis of the roller shaft, the rotation of the connecting block 7 will drive the axis of the roller shaft to move, thereby achieving the purpose of adjusting the pressing force of the conveyor belt 1.

[0033] Furthermore, by Figures 1 to 4 As shown, in order to achieve a better dust suppression effect, the spraying mechanism 6 includes a water inlet pipe 13 and multiple spray nozzles 14. The side of the water inlet pipe 13 near the collection box 2 is connected to a connecting pipe 15. The water inlet end of each spray nozzle 14 passes through the side wall of the collection box 2 and is connected to the connecting pipe 15.

[0034] In use, the water inlet pipe 13 is connected to a water source and water pressure is provided by a water pump. At this time, the water source enters the water inlet end of the spray nozzle 14 through the connecting pipe 15 and then atomizes and sprays out to humidify the outer surface of the roller 3 and the working surface under the conveyor belt 1, which can achieve a good dust suppression effect.

[0035] Furthermore, by Figures 1 to 4 As shown, in order to facilitate the removal of collected coal ash, a collection box 16 is fixedly connected to the lower side of the collection box 2, an auger shaft 17 is rotatably connected to the bottom of the collection box 16, and a power motor 18 is fixedly connected to the outer side of the collection box 16. The output shaft of the power motor 18 passes through the side wall of the collection box 16 and is coaxially fixedly connected to the auger shaft 17.

[0036] It should be noted that the auger shaft 17 is existing technology, and its structure is the same as that of the spiral blade in the auger screw conveyor. Both include a central rotating shaft and spiral blades fixedly connected to the outside of the central rotating shaft. As the central rotating shaft rotates, it can drive the spiral blades to rotate and transport objects. This will not be described in detail here. The power motor 18 is a servo motor. This will not be described in detail here.

[0037] During use, the coal powder, coal lumps, and small coal blocks cleaned off by the roller 3 will fall into the collection box 16. The cross-section of the collection box 16 is V-shaped, and an arc-shaped groove is provided on the lower side. The bottom of the auger shaft 17 is in contact with the arc-shaped groove.

[0038] Furthermore, by Figures 1 to 4 As shown, in order to facilitate operation by staff, a discharge port 19 is provided on the side wall of the collection box 16, and a cleaning hopper 20 is provided on the outside of the discharge port 19.

[0039] During the rotation of the auger shaft 17, coal powder, coal lumps, and small coal blocks will move towards the discharge port 19 and fall into the cleaning hopper 20 under the action of the auger shaft 17, making it convenient for workers to clean them. Furthermore, the inside of the collection box 16 is also equipped with a weight sensor. When the coal powder, coal lumps, and small coal blocks inside the collection box 16 reach a certain weight, the power motor 18 will be started to drive the auger shaft 17 to rotate for cleaning and discharge.

[0040] In use, the two rollers 3 are first placed on the lower side of the coal end of the conveyor belt 1, and are always in contact with the working surface of the conveyor belt 1. After the conveyor belt 1 transports coal, its working surface will be covered with coal powder or small coal lumps. If they are not treated, the entire working area of ​​the conveyor belt 1 will be covered with coal dust. Through the contact between the rollers 3 and the working surface of the conveyor belt 1, the coal powder, especially the small coal lumps, can be picked off the conveyor belt 1. The coal powder can be picked off the conveyor belt 1 or compacted into coal powder clumps, which can effectively reduce the occurrence of coal dust flying. The spraying mechanism 6 can spray the outer surface of the rollers 3 at all times to keep it moist, which can increase the coal dust suppression effect. In use, the position of the scraper 4 and the rollers 3 can be adjusted by moving the position of the adjusting plate 5, so that the rollers 3 can always be in contact with the conveyor belt 1, which can not only achieve the tensioning effect, but also increase the coal dust suppression effect.

[0041] This utility model has a novel structure, ingenious design, and simple and convenient operation. Through this design, it effectively achieves the purpose of facilitating the cleaning of the conveyor belt 1, making it easier for staff to install and operate the device, adding the function of adjusting the clamping force, achieving better dust suppression effect, and facilitating the removal of collected coal ash.

[0042] Although the present invention 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dust suppression device for a coal conveyor, comprising a conveyor belt driven by a coal conveyor for conveying coal, characterized in that: The lower side of the conveyor belt is provided with a collection box for collecting coal dust. The lower side of the conveyor belt abuts against two rollers. The lower side of each roller is provided with a scraper for scraping off the coal dust on the outside of the roller. The inside of the collection box is provided with a movable adjusting plate. The bottom of each scraper is rotatably connected to the adjusting plate. The inside of the collection box is provided with a dust suppression spraying mechanism.

2. The dust suppression device for a coal conveyor according to claim 1, characterized in that: Each of the scraper blades has a connecting block fixedly connected to its left and right sides, and each connecting block has a connecting hole in its center. Each of the rollers has a rotating block fixedly connected to its left and right sides, and each rotating block is rotatably connected to its corresponding connecting hole via a bearing.

3. The dust suppression device for a coal conveyor according to claim 1, characterized in that: Each scraper is fixedly connected to a power block at its bottom, and the lower side of each power block is rotatably connected to the adjusting plate.

4. The dust suppression device for a coal conveyor according to claim 1, characterized in that: The lower side of the conveyor belt is provided with a fixed rod that is fixedly connected to the coal conveyor. A telescopic rod is rotatably connected to the front side of the fixed rod, and the moving end of the telescopic rod is rotatably connected to the rear side of the adjusting plate.

5. A dust suppression device for a coal conveyor according to claim 1, characterized in that: The spraying mechanism includes a water inlet pipe and multiple spray nozzles. The side of the water inlet pipe near the collection box is connected to a connecting pipe. The water inlet end of each spray nozzle passes through the side wall of the collection box and is connected to the connecting pipe.

6. The dust suppression device for a coal conveyor according to claim 1, characterized in that: A collection box is fixedly connected to the lower side of the collection box, and an auger shaft is rotatably connected to the bottom of the collection box. A power motor is fixedly connected to the outer side of the collection box, and the output shaft of the power motor passes through the side wall of the collection box and is coaxially and fixedly connected to the auger shaft.

7. A dust suppression device for a coal conveyor according to claim 6, characterized in that: The side wall of the collection box is provided with a discharge port, and a cleaning hopper is provided on the outside of the discharge port.

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