Coal belt cleaning device for coal-fired power plant and cleaning method thereof

Abstract

This invention provides a coal conveyor belt cleaning device for thermal power plants, comprising: a placement frame, a conveyor belt, an L-shaped mounting frame, a spraying assembly, a pipe, a drive motor body, two movable plates, two moving components, a base frame, a collection assembly, and a scraping assembly. The conveyor belt is mounted on the placement frame; the L-shaped mounting frame is mounted on the surface of the placement frame; the spraying assembly is disposed inside the L-shaped mounting frame; the drive motor body is mounted on the top of the L-shaped mounting frame; the pipe is disposed between the spraying assembly and the drive motor body; and the two movable plates are symmetrically arranged on one side of the L-shaped mounting frame. This invention provides a coal conveyor belt cleaning device for thermal power plants. By providing two movable plates and two moving components on the side of the L-shaped mounting frame, the spraying assembly inside the L-shaped mounting frame can be easily inspected and maintained, replacing the current sealed installation method. Simultaneously, it works in conjunction with the scraping assembly and the collection assembly to scrape away coal residue on the conveyor belt.

Description

Technical Field

[0001] This invention relates to the field of coal conveying system equipment in thermal power plants, and more particularly to a coal conveyor belt cleaning device for thermal power plants. Background Technology

[0002] In the coal conveying system of thermal power plants, the conveyor belt is an important piece of equipment used to transport coal from the coal yard to the raw coal bunker of the boiler. During the coal transportation process, a large amount of coal dust and coal sludge will adhere to the surface of the conveyor belt. If these coal dust and coal sludge are not cleaned in time, they will be scattered into the environment along the way as the conveyor belt runs, causing dust pollution, affecting the working environment and equipment hygiene, and in severe cases, even causing safety accidents such as dust explosions. At the same time, the coal dust attached to the conveyor belt will increase the running resistance of the conveyor belt, accelerate the wear of the conveyor belt, and shorten the service life of the conveyor belt.

[0003] In existing technologies, coal conveyor belt cleaning devices typically use scraper-type cleaners or rotary brush-type cleaners to clean the surface of the conveyor belt. However, existing cleaning devices have the following problems: the spraying components and nozzles of the cleaning device are usually sealed inside the housing. When the nozzles are clogged or require maintenance, the entire housing must be disassembled to access the internal components, making maintenance extremely inconvenient. At the same time, it is difficult to adjust the contact pressure between the cleaning scraper and the conveyor belt. Excessive pressure will damage the conveyor belt, while insufficient pressure will result in incomplete cleaning. In addition, there is a lack of effective collection devices for the cleaned coal dust, which can easily cause secondary dust pollution.

[0004] Therefore, it is necessary to provide a coal conveyor belt cleaning device for thermal power plants to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a coal conveyor belt cleaning device for thermal power plants, which solves the problems of existing cleaning devices where the spraying components are sealed inside the casing, making maintenance inconvenient, resulting in poor cleaning effect and incomplete coal dust collection.

[0006] To solve the above-mentioned technical problems, the present invention provides a coal conveyor belt cleaning device for thermal power plants, comprising:

[0007] The components include: a placement rack, a conveyor belt, an L-shaped mounting bracket, a spraying assembly, piping, a drive unit, two movable plates, two moving assemblies, a base frame, a collection assembly, and a scraping assembly.

[0008] The conveyor belt is mounted on the placement frame;

[0009] The L-shaped mounting bracket is mounted on the surface of the placement rack;

[0010] The spraying assembly is disposed inside the L-shaped mounting bracket;

[0011] The main body of the drive unit is mounted on the top of the L-shaped mounting bracket;

[0012] The pipe is disposed between the spraying assembly and the drive unit body;

[0013] The two movable plates are symmetrically arranged on one side of the L-shaped mounting bracket;

[0014] Two movable components are disposed between the L-shaped mounting bracket and the two movable plates. Each movable component includes two fixed seats, a fixed rod, a movable sleeve, and a U-shaped fixed rod. The fixed rod is mounted on the top of the L-shaped mounting bracket via the two fixed seats. The movable sleeve is fitted onto the surface of the fixed rod. The U-shaped fixed rod connects the movable sleeve and the movable plate.

[0015] The base frame is connected to one side of the bottom of the placement rack;

[0016] The collection component is disposed on the surface of the base frame;

[0017] The scraping assembly is located at the bottom of the placement rack and below the conveyor belt.

[0018] Preferably, the spraying assembly includes multiple spray pipes, multiple spray heads, and two connecting pipes, wherein the multiple spray heads are respectively installed on the surface of the multiple spray pipes, and the multiple connecting pipes are connected between the multiple spray pipes.

[0019] Preferably, a bracket is connected between the plurality of spray pipes, and the bracket is installed on one side of the inner wall of the L-shaped mounting bracket.

[0020] Preferably, the collection assembly includes a collection box, two mounting blocks, and two mounting slots. The collection box is disposed on the surface of the base frame, the two mounting blocks are symmetrically mounted on both sides of the bottom of the collection box, and the two mounting slots are symmetrically mounted on both sides of the surface of the base frame.

[0021] Preferably, the scraping assembly includes a scraper and two bolts, the scraper being threadedly connected to the bottom of the placement frame via the two bolts.

[0022] Preferably, guide plates are installed on both sides of the top of the collection box, and rectangular guide plates are installed on the surface of the placement rack on both the left and right sides of the conveyor belt.

[0023] Preferably, magnetic blocks are connected to opposite sides of the two movable plates, and L-shaped limiting blocks are connected to the surfaces of the two movable plates.

[0024] Preferably, the surface of the collection box is provided with a disassembly assembly, which includes a disassembly plate, a plurality of positioning blocks, a plurality of positioning grooves and a plurality of threaded bolts. The plurality of positioning blocks are respectively connected to the left and right sides of the top and bottom of the disassembly plate, the plurality of positioning grooves are respectively opened on the surface of the collection box, and the plurality of threaded bolts are respectively disposed between the plurality of positioning blocks and the collection box.

[0025] Preferably, a blocking assembly is provided between the two rectangular guide plates and above the conveyor belt. The blocking assembly includes a blocking plate, two rectangular blocks and two connecting bolts. The blocking plate is disposed between the two rectangular guide plates, the two rectangular blocks are symmetrically connected to the left and right sides of the bottom of the blocking plate, and the two connecting bolts are disposed between the two rectangular blocks and the two rectangular guide plates.

[0026] A cleaning method for a coal conveyor belt cleaning device in a thermal power plant includes the following steps:

[0027] S1. Spray assembly installation and water supply connection: Install the spray assembly inside the L-shaped mounting bracket, connect multiple spray pipes through connecting pipes, and have multiple spray heads facing the surface of the conveyor belt; connect the pipes between the spray assembly and the drive unit, and supply water to the spray assembly through the pipes;

[0028] S2, Spraying and wetting: Start the main body of the drive unit, and water enters one of the spray pipes through the pipeline. After the water is delivered to one of the spray pipes, it is then delivered to the inside of several other spray pipes through multiple connecting pipes. After the water is delivered to the inside of the multiple spray pipes, the water inside the multiple spray pipes is evenly sprayed onto the surface of the conveyor belt through multiple spray heads by the pressure of the main body of the drive unit, wetting the coal powder and coal slurry attached to the conveyor belt and reducing their adhesion.

[0029] S3. Scraping component adjustment and installation: Connect the scraper to the bottom of the placement frame with two bolts, so that the upper edge of the scraper contacts the lower surface of the conveyor belt. Adjust the contact pressure between the scraper and the conveyor belt to ensure the scraping effect while avoiding damage to the conveyor belt.

[0030] S4. Conveyor belt operation and scraping: Start the conveyor belt to run. The lower surface of the conveyor belt and the scraper will move relative to each other. The scraper will scrape off the coal powder and coal slurry that have been wetted on the surface of the conveyor belt. The coal powder and coal slurry will fall into the collection box on the base frame under the action of gravity.

[0031] S5. Coal powder diversion and collection: Coal powder and coal slurry scraped off from the conveyor belt are guided by rectangular guide plates installed on the placement frame and fall into the collection box; the guide plate at the top of the collection box further guides the coal powder and coal slurry to fall into the collection box in a concentrated manner to prevent them from scattering.

[0032] S6. Coal powder collection and cleaning and spraying component maintenance: When the coal powder in the collection box reaches the set amount, pull the collection box outward from the base frame. When the collection box is pulled outward from the base frame, it will cause the two mounting blocks at the bottom to separate from the two mounting slots opened on the surface of the base frame. After the collection box is completely separated from the base frame, the coal powder collected inside the collection box can be poured out. After cleaning, put the collection box back on the base frame and insert the mounting blocks into the mounting slots for positioning. When the spraying component inside the L-shaped mounting frame is being maintained, pull the two movable plates to push the left and right sides of the L-shaped mounting frame respectively. When the two movable plates are pushed, they will drive the two movable sleeves to move on the two fixed rods through the two U-shaped fixed rods. At the same time, when the two movable plates move, they will also drive the L-shaped limit block at the bottom to move on the placement frame until the spraying component inside the L-shaped mounting frame is completely exposed. Then the spraying component can be inspected and maintained.

[0033] S7. Equipment Reset and Shutdown: After cleaning is completed, turn off the main drive unit and stop spraying; turn off the conveyor belt and reset the movable plate to complete the cleaning operation of the coal conveyor belt.

[0034] Compared with related technologies, the coal conveyor belt cleaning device for thermal power plants provided by the present invention has the following beneficial effects:

[0035] This invention provides a coal conveyor belt cleaning device for thermal power plants. By setting two movable plates and two moving components on the side of the L-shaped mounting frame, it is convenient to inspect and maintain the spraying components inside the L-shaped mounting frame. It can replace the current sealed installation method. At the same time, it works with scraping components and collecting components to scrape off coal residue on the conveyor belt. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of a first embodiment of a coal conveyor belt cleaning device for a thermal power plant provided by the present invention;

[0037] Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below;

[0038] Figure 3 for Figure 1 The enlarged schematic diagram of section B is shown below;

[0039] Figure 4 for Figure 1 A three-dimensional structural diagram of the cleaning device from a first-view perspective;

[0040] Figure 5 for Figure 4 The enlarged schematic diagram of section C is shown below;

[0041] Figure 6 for Figure 4 The enlarged schematic diagram of part D is shown below;

[0042] Figure 7 for Figure 4 The enlarged schematic diagram of part E is shown below;

[0043] Figure 8 This is a schematic diagram of the second embodiment of a coal conveyor belt cleaning device for thermal power plants provided by the present invention;

[0044] Figure 9 for Figure 8 The enlarged schematic diagram of part F shown;

[0045] Figure 10 This is a schematic diagram of the third embodiment of a coal conveyor belt cleaning device for thermal power plants provided by the present invention;

[0046] Figure 11 for Figure 10 The enlarged schematic diagram of part G is shown.

[0047] The diagram labels are: 1. Placement rack, 2. Conveyor belt, 3. L-shaped mounting rack.

[0048] 5. Spraying assembly; 51. Spraying pipe; 52. Spray head; 53. Connecting pipe.

[0049] 6. Pipeline, 7. Support, 8. Drive unit body, 9. Movable plate,

[0050] 10. Moving component; 101. Fixed base; 102. Fixed rod; 103. Moving sleeve; 104. U-shaped fixed rod.

[0051] 11. Magnetic block, 12. L-shaped limiting block, 13. Base frame,

[0052] 14. Collection Components; 141. Collection Box; 142. Mounting Block; 143. Mounting Slot.

[0053] 15. Scraping assembly; 151. Scraping component; 152. Bolt.

[0054] 16. Rectangular guide plate; 17. Guide plate;

[0055] 18. Disassembly component; 181. Disassembly plate; 182. Positioning block; 183. Positioning groove; 184. Threaded bolt.

[0056] 19. Blocking assembly; 191. Blocking plate; 192. Rectangular block; 193. Connecting bolt. Detailed Implementation

[0057] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0058] First Embodiment

[0059] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 ,in, Figure 1 This is a schematic diagram of the structure of a first embodiment of a coal conveyor belt cleaning device for a thermal power plant provided by the present invention; Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below; Figure 3 for Figure 1 The enlarged schematic diagram of section B is shown below; Figure 4 for Figure 1 A three-dimensional structural diagram of the cleaning device from a first-view perspective; Figure 5 for Figure 4 The enlarged schematic diagram of section C is shown below; Figure 6 for Figure 4 The enlarged schematic diagram of part D is shown below; Figure 7 for Figure 4 The enlarged schematic diagram of part E shown. A coal conveyor belt cleaning device for a thermal power plant includes:

[0060] 1. Placement frame; 2. Conveyor belt; 3. L-shaped mounting frame; 5. Spraying assembly; 6. Pipeline; 8. Drive unit body; 9. Two movable plates; 10. Two moving components; 13. Base frame; 14. Collection assembly; and 15. Scraping assembly.

[0061] The conveyor belt 2 is mounted on the placement frame 1;

[0062] The L-shaped mounting bracket 3 is mounted on the surface of the placement bracket 1;

[0063] The spraying assembly 5 is disposed inside the L-shaped mounting bracket 3;

[0064] The drive motor body 8 is mounted on the top of the L-shaped mounting bracket 3;

[0065] The pipe 6 is disposed between the spraying assembly 5 and the drive motor body 8;

[0066] The two movable plates 9 are symmetrically arranged on one side of the L-shaped mounting bracket 3;

[0067] Two movable components 10 are disposed between the L-shaped mounting bracket 3 and the two movable plates 9. Each movable component 10 includes two fixed seats 101, a fixed rod 102, a movable sleeve 103, and a U-shaped fixed rod 104. The fixed rod 102 is mounted on the top of the L-shaped mounting bracket 3 through the two fixed seats 101. The movable sleeve 103 is fitted onto the surface of the fixed rod 102. The U-shaped fixed rod 104 connects the movable sleeve 103 and the movable plate 9.

[0068] The base frame 13 is connected to one side of the bottom of the placement rack 1;

[0069] The collection component 14 is disposed on the surface of the base frame 13;

[0070] The scraping component 15 is disposed at the bottom of the placement frame 1 and located below the conveyor belt 2.

[0071] The interior of the L-shaped mounting bracket 3 forms an installation space to accommodate the spraying assembly 5.

[0072] The spraying component 5 is used to spray water onto the surface of the conveyor belt 2 to wet the attached coal powder and coal slurry, reduce their adhesion, and facilitate subsequent scraping.

[0073] The spray head 52 is an atomizing nozzle or a fan-shaped nozzle, used to spray water evenly onto the surface of the conveyor belt 2. Multiple connecting pipes 53 connect the spray pipes 51. The drive unit 8 is a water pump or a booster pump, used to pressurize the water and transport it to the spray assembly 5 through the pipe 6. The water inlet of the drive unit 8 is connected to the water source, and the water outlet is connected to the pipe 6.

[0074] Pipe 6 is a circular water pipe made of stainless steel or PVC material, used to transport pressurized water from the drive unit 8 to the spray assembly 5.

[0075] The movable plate 9 is a rectangular plate structure made of stainless steel or engineering plastic. It is used to cover the internal opening of the L-shaped mounting bracket 3, protect the spraying assembly 5, and can be pushed open to expose the internal spraying assembly 5 when maintenance is required.

[0076] The magnetic block 11 is a permanent magnet, used to attract and fix the two movable plates 9 when they are closed. The L-shaped limiting block 12 is an L-shaped bent plate, whose bottom contacts the surface of the placement frame 1, and is used to limit and guide the movement range of the movable plates 9.

[0077] The mounting groove 143 is a T-shaped or rectangular groove that fits the mounting block 142, allowing the collection box 141 to slide out or be pushed in and positioned along the mounting groove 143. The guide plate 17 is an inclined plate structure used to guide the scraped coal powder and coal slurry to fall into the collection box 141. The scraper 151 is a scraper structure made of wear-resistant materials such as polyurethane or ceramic, and its upper edge contacts the lower surface of the conveyor belt 2 to scrape off coal powder and coal slurry.

[0078] The spraying assembly 5 includes multiple spray pipes 51, multiple spray heads 52, and two connecting pipes 53. The multiple spray heads 52 are respectively installed on the surface of the multiple spray pipes 51, and the multiple connecting pipes 53 are connected between the multiple spray pipes 51.

[0079] A bracket 7 is connected between the plurality of spray pipes 51, and the bracket 7 is installed on one side of the inner wall of the L-shaped mounting bracket 3.

[0080] The collection assembly 14 includes a collection box 141, two mounting blocks 142 and two mounting slots 143. The collection box 141 is disposed on the surface of the base frame 13. The two mounting blocks 142 are symmetrically mounted on both sides of the bottom of the collection box 141, and the two mounting slots 143 are symmetrically mounted on both sides of the surface of the base frame 13.

[0081] The scraping assembly 15 includes a scraper 151 and two bolts 152, wherein the scraper 151 is threadedly connected to the bottom of the placement rack 1 by the two bolts 152.

[0082] Guide plates 17 are installed on both sides of the top of the collection box 141, and rectangular guide plates 16 are installed on the surface of the placement rack 1 and on the left and right sides of the conveyor belt 2.

[0083] Magnetic blocks 11 are connected to the opposite sides of the two movable plates 9, and L-shaped limiting blocks 12 are connected to the surfaces of the two movable plates 9.

[0084] Compared with related technologies, the coal conveyor belt cleaning device for thermal power plants provided by the present invention has the following beneficial effects:

[0085] This invention provides a coal conveyor belt cleaning device for thermal power plants. By setting two movable plates 9 and two moving components 10 on the side of the L-shaped mounting frame 3, it is convenient to inspect and maintain the spraying component 5 inside the L-shaped mounting frame 3. It can replace the current sealed installation method. At the same time, it works with the scraping component 15 and the collecting component 14 to scrape off coal residue on the conveyor belt 2.

[0086] Second Embodiment

[0087] Please refer to the following: Figure 8 and Figure 9 Based on the first embodiment of this application providing a coal conveyor belt cleaning device for thermal power plants, the second embodiment of this application proposes another coal conveyor belt cleaning device for thermal power plants. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0088] Specifically, the second embodiment of this application provides a coal conveyor belt cleaning device for a thermal power plant, which differs in that it further includes a disassembly assembly 18. The disassembly assembly 18 is disposed on the surface of the collection box 141. The disassembly assembly 18 includes a disassembly plate 181, a plurality of positioning blocks 182, a plurality of positioning grooves 183, and a plurality of threaded bolts 184. The plurality of positioning blocks 182 are respectively connected to the left and right sides of the top and bottom of the disassembly plate 181. The plurality of positioning grooves 183 are respectively opened on the surface of the collection box 141. The plurality of threaded bolts 184 are respectively disposed between the plurality of positioning blocks 182 and the collection box 141.

[0089] The use of multiple positioning blocks 182 and multiple positioning grooves 183 can play a positioning role after the disassembly plate 181 is installed on the surface of the collection box 141. It also facilitates the installation of the disassembly plate 181 by multiple threaded bolts 184. Threaded holes adapted to the multiple threaded bolts 184 are opened between the multiple positioning blocks 182 and the collection box 141. A rectangular mounting through groove adapted to the disassembly plate 181 is opened on the surface of the collection box 141.

[0090] The working principle of the coal conveyor belt cleaning device for thermal power plants provided by this invention is as follows:

[0091] When using the collection box 141, to clean the residue inside from the side, first remove the threaded bolts 184 between the multiple positioning blocks 182 and the collection box 141. After the multiple threaded bolts 184 are removed, the coal residue inside can be cleaned by pulling the disassembly plate 181 to separate it from the collection box 141.

[0092] Compared with related technologies, the coal conveyor belt cleaning device for thermal power plants provided by the present invention has the following beneficial effects:

[0093] The present invention provides a coal conveyor belt cleaning device for thermal power plants. A disassembly component 18 is provided on the surface of the collection box 141 to facilitate the cleaning of coal residue inside the collection box 141 from the side.

[0094] Third Embodiment

[0095] Please refer to the following: Figure 10 and Figure 11 Based on the first embodiment of this application, which provides a coal conveyor belt cleaning device for thermal power plants, the third embodiment of this application proposes another coal conveyor belt cleaning device for thermal power plants. The third embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the third embodiment will not affect the separate implementation of the first embodiment.

[0096] Specifically, the difference in the third embodiment of this application regarding the cleaning device for a coal conveyor belt in a thermal power plant is that it further includes a blocking component 19. The blocking component 19 is disposed between the two rectangular guide plates 16 and located above the conveyor belt 2. The blocking component 19 includes a blocking plate 191, two rectangular blocks 192, and two connecting bolts 193. The blocking plate 191 is disposed between the two rectangular guide plates 16, the two rectangular blocks 192 are symmetrically connected to the left and right sides of the bottom of the blocking plate 191, and the two connecting bolts 193 are disposed between the two rectangular blocks 192 and the two rectangular guide plates 16.

[0097] The use of two rectangular blocks 192 facilitates the stable placement of the baffle plate 191 between the two rectangular guide plates 16, while connecting holes adapted to the two connecting bolts 193 are provided between the two rectangular blocks 192 and the two rectangular guide plates 16.

[0098] The working principle of the coal conveyor belt cleaning device for thermal power plants provided by this invention is as follows:

[0099] When in use, to block the dust generated during the conveyor belt 2 for coal transportation, first install the blocking plate 191 with two rectangular blocks 192 between the two rectangular guide plates 16. After the blocking plate 191 is installed, use two connecting bolts 193 to pass through the two rectangular blocks 192 and connect them to the two rectangular guide plates 16.

[0100] Compared with related technologies, the coal conveyor belt cleaning device for thermal power plants provided by the present invention has the following beneficial effects:

[0101] The present invention provides a coal conveyor belt cleaning device for thermal power plants. By setting a baffle plate 191, two rectangular blocks 192 and two connecting bolts 193 between two rectangular guide plates 16, it can play a role in blocking coal dust when the conveyor belt 2 is conveying coal.

[0102] A cleaning method for a coal conveyor belt cleaning device in a thermal power plant includes the following steps:

[0103] S1. Spray assembly installation and water supply connection: Install the spray assembly 5 inside the L-shaped mounting bracket 3, so that multiple spray pipes 51 are connected through the connecting pipe 53, and multiple spray heads 52 face the surface of the conveyor belt 2; connect the pipe 6 between the spray assembly 5 and the drive unit 8, and the drive unit 8 supplies water to the spray assembly 5 through the pipe 6.

[0104] S2, Spraying and wetting: Start the drive unit 8, and water enters one of the spray pipes 51 through the pipe 6. After the water is delivered to one of the spray pipes 51, it is then delivered to the inside of the other spray pipes 51 through multiple connecting pipes 53. After the water is delivered to the inside of the multiple spray pipes 51, the water inside the multiple spray pipes 51 is evenly sprayed onto the surface of the conveyor belt 2 through multiple spray heads 52 by the pressure of the drive unit 8, wetting the coal powder and coal slurry attached to the conveyor belt 2 and reducing their adhesion.

[0105] S3. Scraping component adjustment and installation: Connect the scraper 151 to the bottom of the placement frame 1 by two bolts 152, so that the upper edge of the scraper 151 contacts the lower surface of the conveyor belt 2. Adjust the contact pressure between the scraper 151 and the conveyor belt 2 to ensure the scraping effect while avoiding damage to the conveyor belt 2.

[0106] S4. Conveyor belt operation and scraping: Start the conveyor belt 2 to run. The lower surface of the conveyor belt 2 and the scraper 151 will move relative to each other. The scraper 151 will scrape off the coal powder and coal slurry that have been wetted on the surface of the conveyor belt 2. The coal powder and coal slurry will fall into the collection box 141 on the base frame 13 under the action of gravity.

[0107] S5. Coal powder diversion and collection: Coal powder and coal sludge scraped off from the conveyor belt 2 are guided by the rectangular guide plate 16 installed on the placement frame 1 and fall into the collection box 141; the guide plate 17 at the top of the collection box 141 further guides the coal powder and coal sludge to fall into the collection box 141 in a concentrated manner to prevent them from scattering.

[0108] S6. Coal dust collection, cleaning, and spraying component 5 maintenance: When the coal dust in the collection box 141 reaches the set amount, pull the collection box 141 outward from the base frame 13. When the collection box 141 is pulled outward from the base frame 13, it causes the two mounting blocks 142 at the bottom to separate from the two mounting slots 143 on the surface of the base frame 13. After the collection box 141 is completely separated from the base frame 13, the coal dust collected inside the collection box 141 can be poured out. After cleaning, put the collection box 141 back into the base frame 13, so that the mounting blocks 142 are inserted into the mounting slots. Positioning in 143: When inspecting the spraying component 5 inside the L-shaped mounting bracket 3, the two movable plates 9 are pulled to push the left and right sides of the L-shaped mounting bracket 3 respectively. When the two movable plates 9 are pushed, the two movable sleeves 103 move on the two fixed rods 102 through the two U-shaped fixed rods 104. At the same time, when the two movable plates 9 move, they also drive the bottom L-shaped limit block 12 to move on the placement frame 1 until the spraying component 5 inside the L-shaped mounting bracket 3 is completely exposed, then the spraying component 5 can be inspected and maintained.

[0109] S7. Equipment Reset and Shutdown: After cleaning is completed, turn off the main drive unit 8 and stop spraying; turn off the conveyor belt 2 and reset the movable plate 9 to complete the cleaning operation of the coal conveyor belt.

[0110] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A coal conveyor belt cleaning device for thermal power plants, characterized in that, include: The components include: a placement rack, a conveyor belt, an L-shaped mounting bracket, a spraying assembly, piping, a drive unit, two movable plates, two moving assemblies, a base frame, a collection assembly, and a scraping assembly. The conveyor belt is mounted on the placement frame; The L-shaped mounting bracket is mounted on the surface of the placement rack; The spraying assembly is disposed inside the L-shaped mounting bracket; The main body of the drive unit is mounted on the top of the L-shaped mounting bracket; The pipe is disposed between the spraying assembly and the drive unit body; The two movable plates are symmetrically arranged on one side of the L-shaped mounting bracket; Two movable components are disposed between the L-shaped mounting bracket and the two movable plates. Each movable component includes two fixed seats, a fixed rod, a movable sleeve, and a U-shaped fixed rod. The fixed rod is mounted on the top of the L-shaped mounting bracket via the two fixed seats. The movable sleeve is fitted onto the surface of the fixed rod. The U-shaped fixed rod connects the movable sleeve and the movable plate. The base frame is connected to one side of the bottom of the placement rack; The collection component is disposed on the surface of the base frame; The scraping assembly is located at the bottom of the placement rack and below the conveyor belt.

2. The coal conveyor belt cleaning device for thermal power plants according to claim 1, characterized in that, The spraying assembly includes multiple spray pipes, multiple spray heads, and two connecting pipes. The multiple spray heads are respectively installed on the surface of the multiple spray pipes, and the multiple connecting pipes are connected between the multiple spray pipes.

3. The coal conveyor belt cleaning device for thermal power plants according to claim 2, characterized in that, A bracket is connected between the multiple spray pipes, and the bracket is installed on one side of the inner wall of the L-shaped mounting bracket.

4. The coal conveyor belt cleaning device for thermal power plants according to claim 1, characterized in that, The collection assembly includes a collection box, two mounting blocks, and two mounting slots. The collection box is disposed on the surface of the base frame, the two mounting blocks are symmetrically mounted on both sides of the bottom of the collection box, and the two mounting slots are symmetrically mounted on both sides of the surface of the base frame.

5. The coal conveyor belt cleaning device for thermal power plants according to claim 1, characterized in that, The scraping assembly includes a scraper and two bolts, the scraper being threaded to the bottom of the placement rack via the two bolts.

6. The coal conveyor belt cleaning device for thermal power plants according to claim 4, characterized in that, Guide plates are installed on both sides of the top of the collection box, and rectangular guide plates are installed on the surface of the placement rack on both the left and right sides of the conveyor belt.

7. The coal conveyor belt cleaning device for thermal power plants according to claim 1, characterized in that, Magnetic blocks are connected to the opposite sides of the two movable plates, and L-shaped limiting blocks are connected to the surfaces of the two movable plates.

8. The coal conveyor belt cleaning device for thermal power plants according to claim 4, characterized in that, The surface of the collection box is provided with a disassembly assembly, which includes a disassembly plate, multiple positioning blocks, multiple positioning grooves and multiple threaded bolts. The multiple positioning blocks are respectively connected to the left and right sides of the top and bottom of the disassembly plate, the multiple positioning grooves are respectively opened on the surface of the collection box, and the multiple threaded bolts are respectively disposed between the multiple positioning blocks and the collection box.

9. The coal conveyor belt cleaning device for thermal power plants according to claim 6, characterized in that, A blocking assembly is provided between the two rectangular guide plates and above the conveyor belt. The blocking assembly includes a blocking plate, two rectangular blocks and two connecting bolts. The blocking plate is disposed between the two rectangular guide plates, the two rectangular blocks are symmetrically connected to the left and right sides of the bottom of the blocking plate, and the two connecting bolts are disposed between the two rectangular blocks and the two rectangular guide plates.

10. A cleaning method for a coal conveyor belt cleaning device in a thermal power plant, as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S1. Spray assembly installation and water supply connection: Install the spray assembly inside the L-shaped mounting bracket, connect multiple spray pipes through connecting pipes, and have multiple spray heads facing the surface of the conveyor belt; connect the pipes between the spray assembly and the drive unit, and supply water to the spray assembly through the pipes; S2, Spraying and wetting: Start the main body of the drive unit, and water enters one of the spray pipes through the pipeline. After the water is delivered to one of the spray pipes, it is then delivered to the inside of several other spray pipes through multiple connecting pipes. After the water is delivered to the inside of the multiple spray pipes, the water inside the multiple spray pipes is evenly sprayed onto the surface of the conveyor belt through multiple spray heads by the pressure of the main body of the drive unit, wetting the coal powder and coal slurry attached to the conveyor belt and reducing their adhesion. S3. Scraping component adjustment and installation: Connect the scraper to the bottom of the placement frame with two bolts, so that the upper edge of the scraper contacts the lower surface of the conveyor belt. Adjust the contact pressure between the scraper and the conveyor belt to ensure the scraping effect while avoiding damage to the conveyor belt. S4. Conveyor belt operation and scraping: Start the conveyor belt to run. The lower surface of the conveyor belt and the scraper will move relative to each other. The scraper will scrape off the coal powder and coal slurry that have been wetted on the surface of the conveyor belt. The coal powder and coal slurry will fall into the collection box on the base frame under the action of gravity. S5. Coal powder diversion and collection: Coal powder and coal slurry scraped off from the conveyor belt are guided by rectangular guide plates installed on the placement frame and fall into the collection box; the guide plate at the top of the collection box further guides the coal powder and coal slurry to fall into the collection box in a concentrated manner to prevent them from scattering. S6. Coal powder collection and cleaning and spraying component maintenance: When the coal powder in the collection box reaches the set amount, pull the collection box outward from the base frame. When the collection box is pulled outward from the base frame, it will cause the two mounting blocks at the bottom to separate from the two mounting slots opened on the surface of the base frame. After the collection box is completely separated from the base frame, the coal powder collected inside the collection box can be poured out. After cleaning, put the collection box back on the base frame and insert the mounting blocks into the mounting slots for positioning. When the spraying component inside the L-shaped mounting frame is being maintained, pull the two movable plates to push the left and right sides of the L-shaped mounting frame respectively. When the two movable plates are pushed, they will drive the two movable sleeves to move on the two fixed rods through the two U-shaped fixed rods. At the same time, when the two movable plates move, they will also drive the L-shaped limit block at the bottom to move on the placement frame until the spraying component inside the L-shaped mounting frame is completely exposed. Then the spraying component can be inspected and maintained. S7. Equipment Reset and Shutdown: After cleaning is completed, turn off the main drive unit and stop spraying; turn off the conveyor belt and reset the movable plate to complete the cleaning operation of the coal conveyor belt.

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