A coal ash conveying device for thermal power generation

Abstract

This invention relates to the field of conveying device technology and discloses a coal slag conveying device for thermal power generation, comprising: a conveying mechanism, a feeding hopper, and a dustproof component. The dustproof component is disposed on the feeding hopper and includes a support member, a rotating member, a sealing member, and a state switching drive member. The support member is connected to the feeding hopper, and the rotating member is disposed on the inner side of the feeding hopper. By installing a dustproof component inside the feeding hopper, when conveying dry coal slag, the first usage state of the dustproof component acts as a sealing structure for the opening of the feeding hopper to control the intermittent opening of the feeding hopper. This does not affect the normal addition of coal slag and can intercept dust inside the feeding hopper, making it difficult for it to overflow, thus solving the dust problem at the feeding hopper location. When conveying wet coal slag, the second usage state of the sealing member acts as a structure similar to a crushing roller, which can crush and clear the coal slag accumulated at the lower outlet of the feeding hopper.

Description

Technical Field

[0001] This invention relates to the field of conveying device technology, and more specifically, to a coal slag conveying device for thermal power generation. Background Technology

[0002] Coal slag is an industrial solid waste, mainly the residue discharged from coal-fired power plants, industrial and domestic boilers, and other equipment. It is also known as furnace slag. Its main components are silicon dioxide, alumina, iron oxide, calcium oxide, and magnesium oxide. Depending on its composition, it can be used to manufacture cement, bricks, and refractory materials. Some can be used to produce alumina or to refine rare metals such as gallium and germanium.

[0003] Thermal power plants generate a large amount of coal ash daily. To facilitate subsequent recycling, these ash plants typically pile them up. During the transfer and recycling process, a specialized coal ash conveying device transports the ash to transport vehicles. Currently, existing coal ash conveying devices generally include a hopper, a conveyor belt, and a mobile support mechanism. In operation, the conveying device is moved to the side of the coal ash pile, and the coal ash is added to the hopper. The hopper then quantitatively conveys the coal ash onto the conveyor belt, which continuously transports it to the transport vehicles.

[0004] However, due to different storage environments, coal slag can be either dry or wet. When conveying dry coal slag, the collisions during its entry into the hopper and its descent onto the transport vehicle generate significant dust. The traditional solution is to spray water mist into the hopper and at the point where the slag falls onto the transport vehicle. While this effectively reduces dust, it increases water consumption and makes the slag and hopper damp, causing slag to adhere to the hopper's inner wall and hindering normal discharge. Conversely, when conveying wet coal slag, its higher viscosity causes it to adhere to the hopper's inner wall. Excessive adhesion can clog the hopper outlet, requiring frequent unclogging and increasing the workload. Therefore, a coal slag conveying device that can simultaneously overcome both the dust generation and unclogging problems associated with conveying both dry and wet coal slag is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide a coal slag conveying device for thermal power generation to solve the aforementioned technical problems.

[0006] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0007] This invention provides a coal slag conveying device for thermal power generation, comprising: a conveying mechanism, a feeding hopper, and a dust prevention component. The dust prevention component is disposed on the feeding hopper and includes a support member, a rotating member, a sealing member, and a state switching drive member. The support member is connected to the feeding hopper, the rotating member is disposed on the inner side of the feeding hopper, and the rotating member has a self-locking lifting function. The rotating member is connected to the support member, and the sealing member is connected to the rotating member. The state switching drive member is installed on the feeding hopper. When the support member moves the rotating member and the sealing member downward together, the state switching drive member synchronously drives the sealing member to switch its usage state.

[0008] When the sealing component is in its first operating state, it is used to transport dry coal slag. The rotating component and the sealing component are located at the upper end of the hopper opening, and together they form a sealing plate structure adapted to the hopper opening to seal the opening. The rotating component drives the sealing component to rotate cyclically at the hopper opening, causing the sealing component to control the hopper opening to open intermittently, thus preventing dust in the hopper from overflowing. When the sealing component is in its second operating state, it is used to transport wet coal slag. The rotating component and the sealing component are located at one end of the hopper outlet, and together they form a stirring roller structure adapted to the lower outlet of the hopper. The rotating component drives the sealing component to rotate at the lower outlet of the hopper, thereby crushing and clearing the coal slag accumulated at the lower outlet of the hopper.

[0009] As a further optimization of the present invention, the sealing component includes two fixed plates, which are staggered vertically on both sides of the rotating component. The rotating component has movable grooves on both sides corresponding to the two fixed plates. One end of each of the two fixed plates is slidably connected to one of the two movable grooves. A connecting spring is installed between each of the two fixed plates and its corresponding movable groove. Several contraction grooves are formed on the top surface of each of the two fixed plates. Movable plates are rotatably installed within each of the contraction grooves. The rotating ends of the movable plates are fixed by a rotating shaft. A plurality of clearance grooves corresponding to each contraction groove are provided on one side of each of the two movable grooves.

[0010] As a further optimization of the present invention, the state switching drive includes two first drive units and two second drive units. The two first drive units are respectively disposed in two movable slots and located on both sides of the feeding hopper. Both first drive units are connected to two fixed plates. When the support member drives the rotating member and the sealing member to move downward together, the two second drive units jointly drive the two fixed plates to slide and retract towards the corresponding movable slots simultaneously. When the fixed plates are about to move to the preset retraction position, the two first drive units respectively drive several corresponding movable plates to synchronously flip away from the retraction slots. As a further optimization of the present invention, the first drive unit includes a first toothed plate and an incomplete gear. The first toothed plate is fixedly installed on the inner side of the movable slot, and the incomplete gear is fixed to the rotating end of the movable plate corresponding to the position of the first toothed plate.

[0011] As a further optimization of the present invention, the second driving part includes a rotating body, a toothed ring, a second toothed plate, and two connecting slide shafts. The rotating body is rotatably sleeved on the outside of the rotating end of the rotating component. The toothed ring is fixedly sleeved on the outside of the rotating body. The second toothed plate is fixedly installed on a preset downward movement path of the rotating component. The two connecting slide shafts are respectively fixed to one side of two fixed plates. Both ends of the rotating body are provided with slide grooves, and the ends of the two connecting slide shafts are slidably connected to the two slide grooves respectively.

[0012] As a further optimization of the present invention, the support member includes a sliding frame, an adjusting screw, and two support plates. The sliding frame is slidably sleeved on the outside of the feeding hopper, and the two support plates are symmetrically distributed on both sides of the feeding hopper. The two ends of the sliding frame are respectively fixed to one side of the two support plates. The connecting ends of the rotating member are respectively connected to the two support plates. The adjusting screw is rotatably installed on one side of the feeding hopper, and the outer side of the adjusting screw is threadedly connected to one end of the sliding frame.

[0013] As a further optimization of the present invention, the rotating component includes a rotating roller and a drive motor. The feeding hopper has lifting grooves on both sides corresponding to the two support plates. The rotating roller is located inside the feeding hopper, and its two ends are rotatably connected to the two support plates after passing through the corresponding lifting grooves. The fixed end of the drive motor is fixed to one of the support plates, and the driving end of the drive motor is fixed to one of the rotating ends of the rotating roller. As a further optimization of the present invention, the length of the support plate is at least twice that of the lifting groove. When the sealing component is in its first use state, the lower end of the support plate seals one side of the lifting groove. As a further optimization of the present invention, there are two of each of the first toothed plate and the incomplete gear. The two first toothed plates are symmetrically fixedly installed inside the movable groove, and the two incomplete gears are respectively fixed to the rotating ends of the movable plates corresponding to the positions of the first toothed plates.

[0014] As a further optimization of the present invention, the conveying mechanism includes a conveyor belt and a movable base. The top of the movable base is provided with a telescopic component. The bottom end of the conveyor belt intersects with the movable base, and the top end of the conveyor belt is connected to the telescopic end of the telescopic component.

[0015] The beneficial effects of this invention are as follows:

[0016] This invention solves the dust problem at the feeding hopper by installing a dustproof component inside the hopper. When conveying dry coal slag, the dustproof component, in its first state of use, acts as a sealing structure for the opening of the feeding hopper to control the intermittent opening of the hopper. This does not affect the normal addition of coal slag, but also intercepts the dust inside the feeding hopper, making it difficult for it to overflow. This replaces the traditional method of spraying water mist, which not only saves some water consumption, but also prevents the dry coal slag and the inner wall of the feeding hopper from becoming damp, thus reducing the impact on the coal slag feeding speed.

[0017] When conveying wet coal slag, the second use state of the sealing component, which functions as a structure similar to a crushing roller, can crush and clear the coal slag that is blocked at the lower outlet of the feeding hopper. This helps maintain the normal feeding of wet coal slag, eliminating the need for frequent clearing operations and reducing the workload of conveying wet coal slag. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a coal slag conveying device for thermal power generation provided by the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the feeding hopper and dustproof components in a coal slag conveying device for thermal power generation provided by the present invention;

[0020] Figure 3 This is a cross-sectional view of the feeding hopper and dustproof components in a coal slag conveying device for thermal power generation provided by the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of a dust prevention component in a coal slag conveying device for thermal power generation provided by the present invention;

[0022] Figure 5 This is a partial cross-sectional view of the rotating roller and sealing component in a coal slag conveying device for thermal power generation provided by the present invention;

[0023] Figure 6 This is a schematic diagram of the structure between the rotating roller and the second drive unit in a coal slag conveying device for thermal power generation provided by the present invention;

[0024] Figure 7 This is a schematic diagram of the structure between the sealing component and the second drive unit in a coal slag conveying device for thermal power generation provided by the present invention;

[0025] Figure 8 This is a schematic diagram of the dust prevention component in a coal slag conveying device for thermal power generation switching from a first operating state to a second operating state, provided by the present invention.

[0026] Figure 9 This is a schematic diagram of the conveying mechanism in a coal slag conveying device for thermal power generation provided by the present invention.

[0027] In the diagram: 1. Conveying mechanism; 11. Conveyor belt; 12. Moving base; 13. Telescopic assembly; 2. Feeding hopper; 3. Dustproof assembly; 31. Support component; 311. Sliding frame; 312. Adjusting screw; 313. Support plate; 32. Rotating component; 321. Rotating roller; 322. Drive motor; 323. Lifting groove; 33. Sealing component; 331. Fixed plate; 332. Movable groove; 333. Connecting spring; 334. Shrinking groove; 335. Movable plate; 336. Clearing groove; 34. State switching drive component; 341. First toothed plate; 342. Incomplete gear; 343. Rotating body; 344. Gear ring; 345. Second toothed plate; 346. Connecting sliding shaft; 347. Slide groove. Detailed Implementation

[0028] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0029] Please refer to Figures 1 to 2A coal ash conveying device for thermal power generation includes: a conveying mechanism 1, a feeding hopper 2, and a dustproof component 3. The dustproof component 3 includes a support member 31, a rotating member 32, a sealing member 33, and a state-switching drive member 34. The support member 31 is connected to the feeding hopper 2. The rotating member 32 is located inside the feeding hopper 2 and is connected to the support member 31. The sealing member 33 is connected to the rotating member 32. The state-switching drive member 34 is installed on the feeding hopper 2 and is used to drive the sealing member 33 to switch its operating state. The sealing member 33 has two operating states. When in the first use state, the rotating part 32 and the sealing part 33 are located at the upper end of the opening of the feeding hopper 2, and the two form a sealing plate structure adapted to the opening of the feeding hopper 2, which is used to seal the opening of the feeding hopper 2. The rotating part 32 drives the sealing part 33 to rotate cyclically at the opening position of the feeding hopper 2, so that the sealing part 33 controls the opening of the feeding hopper 2 to open intermittently. When the sealing part 33 is in the second use state, the rotating part 32 and the sealing part 33 are located at one end of the discharge port of the feeding hopper 2, and the two form a stirring roller structure adapted to the lower outlet of the feeding hopper 2.

[0030] Please refer to Figure 8 It should be noted that when conveying dry coal slag, the sealing component 33 is in its first operational state. When the sealing component 33 rotates to open the opening of the feeding hopper 2, coal slag is added into the feeding hopper 2. When the sealing component 33 rotates to close the opening of the feeding hopper 2, the dust inside the feeding hopper 2 is intercepted by the sealing component 33 and cannot overflow. This solves the dust problem at the feeding hopper 2 location, replacing the traditional water mist spraying method. This not only saves some water consumption but also prevents the dry coal slag and the inner wall of the feeding hopper 2 from becoming damp, reducing the impact on the coal slag discharge speed. However, when conveying damp coal slag... The sealing component 33 is switched from the first use state to the second use state. The supporting component 31 drives the rotating component 32 and the sealing component 33 to move down to the lower end of the inner side of the feeding hopper 2. The state switching drive component 34 synchronously drives the sealing component 33 to switch to the second use state. The rotating component 32 drives the sealing component 33 to rotate at the lower end outlet of the feeding hopper 2. Through the structure similar to a crushing roller formed by the rotating component 32 and the sealing component 33, the coal slag accumulated at the lower end outlet of the feeding hopper 2 can be crushed and cleared. This is conducive to maintaining the normal feeding of wet coal slag, eliminating the need for frequent clearing operations and reducing the workload of conveying wet coal slag.

[0031] Please refer to Figures 3 to 5The sealing component 33 includes two fixed plates 331, which are staggered vertically on both sides of the rotating component 32. The rotating component 32 is provided with movable grooves 332 on both sides corresponding to the two fixed plates 331. One end of each fixed plate 331 is slidably connected to the two movable grooves 332. Two connecting springs 333 are installed between each fixed plate 331 and its corresponding movable groove 332. Nine contraction grooves 334 are provided on the top surface of each fixed plate 331. Movable plates 335 are rotatably installed in each of the nine contraction grooves 334. The rotating ends of the nine movable plates 335 are fixed by a rotating shaft. One side of each of the two movable grooves 332 is provided with a relief groove 336 corresponding to each of the nine contraction grooves 334.

[0032] It should be noted that when conveying wet coal slag, the sealing component 33 needs to be switched to the second use state. The support component 31 drives the rotating component 32 and the sealing component 33 to move down together. When the rotating component 32 descends to the preset position, the state switching drive component 34 starts to drive the sealing component 33 to move. It first drives the fixed plate 331 and the nine movable plates 335 on it to slide and retract into the corresponding movable groove 332. When the end of the movable plate 335 is about to contact the inner wall of the movable groove 332, the state switching drive component 34 starts to drive the nine movable plates 335 on the fixed plate 331 to flip along the trajectory of the corresponding relief groove 336, so that the movable plates 335 move away from the corresponding retraction groove 334. When the end of the fixed plate 331 is in contact with the inner wall of the movable groove 332, the sealing component 33 descends to the lower end of the discharge port of the feeding hopper 2. At this time, the state switching drive component 34 no longer drives the rotating component. When the components 32 and 33 are in motion, the sealing component 33 is in its second use state. By retracting the fixed plate 331, its length exposed outside the rotating component 32 is shortened. The retracted fixed plate 331 can adapt to the relatively narrow discharge port of the feeding hopper 2, allowing it to rotate at the discharge port of the feeding hopper 2. In the second use state, the two fixed plates 331 and the movable plate 335 of the sealing component 33 are evenly distributed on the outer periphery of the rotating component 32, forming a comb-like structure on the outer periphery of the rotating component 32, forming a structure similar to a mixing roller. Then, the rotating component 32 drives the sealing component 33 to rotate together. After the wet coal slag enters the feeding hopper 2, if it accumulates at the discharge port of the feeding hopper 2, the rotation of the sealing component 33 can agitate and disperse the accumulated wet coal slag, allowing it to fall from the discharge port of the feeding hopper 2, thus automatically clearing the feeding hopper 2.

[0033] Please refer to Figures 5 to 7The state switching drive unit 34 includes two first drive units and two second drive units. The two first drive units are respectively disposed in two movable slots 332 and located on both sides of the feeding hopper 2. Both first drive units are connected to two fixed plates 331. When the support member 31 drives the rotating member 32 and the sealing member 33 to move down together, the two second drive units jointly drive the two fixed plates 331 to slide and retract towards the corresponding movable slots 332. When the fixed plates 331 are about to move to the preset retraction position, the two first drive units respectively drive the corresponding nine movable plates 335 to flip synchronously away from the retraction slots 334.

[0034] Specifically, the first drive unit includes two first toothed plates 341 and two incomplete gears 342. The two first toothed plates 341 are symmetrically fixedly installed inside the movable groove 332, and the two incomplete gears 342 are respectively fixed to the rotating ends of the movable plate 335 corresponding to the positions of the first toothed plates 341. The second drive unit includes a rotating body 343, a toothed ring 344, a second toothed plate 345, and two connecting slide shafts 346. The rotating body 343 is sleeved on the outside of the rotating end of the rotating member 32, the toothed ring 344 is fixedly sleeved on the outside of the rotating body 343, the second toothed plate 345 is fixedly installed on the preset downward movement path of the rotating member 32, and the two connecting slide shafts 346 are respectively fixed to one side of the two fixed plates 331. Both ends of the rotating body 343 are provided with slide grooves 347, and the ends of the two connecting slide shafts 346 are slidably connected to the two slide grooves 347 respectively.

[0035] It should be noted that when the sealing component 33 is switched to the second use state, the supporting component 31 drives the rotating component 32 and the sealing component 33 to move downward together. At this time, the rotating body 343 moves downward along with the rotating component 32. When the toothed ring 344 moves downward and meshes with the corresponding second toothed plate 345, the rotating component 32 continues to move downward, causing the toothed ring 344 to rotate along the second toothed plate 345, thereby driving the rotating body 343 to rotate. Under the rotation of the rotating body 343, the ends of its... The slide groove 347 exerts a force on the two connecting slide shafts 346, causing the connecting slide shafts 346 to slide horizontally. The fixed plate 331, driven by the connecting slide shafts 346 at both ends, gradually slides and retracts into the movable groove 332. The nine movable plates 335 on the fixed plate 331 retract and move along with the fixed plate 331. When the end of the fixed plate 331 is about to contact the inner wall of the movable groove 332, the incomplete gears 342 on the movable plates 335 begin to engage with their corresponding first teeth. When the plates 341 mesh, the incomplete gear 342 can rotate along the first toothed plate 341 under the continued sliding action of the fixed plate 331. Under the rotation of the incomplete gear 342, the corresponding nine movable plates 335 can be driven to rotate along the path of the relief groove 336, so that the movable plates 335 gradually move away from the corresponding shrinkage groove 334. When the toothed ring 344 rotates to the lower end of the second toothed plate 345, the rotating part 32 and the sealing part 33 reach the discharge port position of the feeding hopper 2. The support part 31 no longer moves down, and the rotating body 343 no longer rotates. At this time, the end of the fixed plate 331 is exactly in contact with the inner wall of the movable groove 332, and the nine movable plates 335 have just rotated ninety degrees. In this way, the state adjustment of the sealing part 33 is completed simultaneously during the process of adjusting the sealing part 33 and the rotating part 32 to the discharge port position of the feeding hopper 2. There is no need to configure a separate drive device for driving, realizing the function of synchronous adaptive change of the position adjustment and state switching of the sealing part 33.

[0036] Please refer to Figures 3 to 4 The support member 31 includes a sliding frame 311, an adjusting screw 312, and two support plates 313. The sliding frame 311 is slidably sleeved on the outside of the feeding hopper 2. The two support plates 313 are symmetrically distributed on both sides of the feeding hopper 2. The two ends of the sliding frame 311 are respectively fixed to one side of the two support plates 313. The connecting ends of the rotating member 32 are respectively connected to the two support plates 313. The adjusting screw 312 is rotatably installed on one side of the feeding hopper 2. The outside of the adjusting screw 312 is threadedly connected to one end of the sliding frame 311. The feeding hopper 2 and the two support plates 313 are provided with lifting grooves 323 on both sides. The lifting grooves 323 serve as the lifting path of the rotating member 32. The second toothed plate 345 is fixed on the inner wall of the lifting groove 323.

[0037] It should be noted that the length of the support plate 313 is at least twice that of the lifting groove 323. When the sealing component 33 is in the first use state, the lower end of the support plate 313 seals the lifting groove 323 on one side of the feeding hopper 2. When the sealing component 33 moves down, the support plate 313 also moves down synchronously, so that its upper end still seals the lifting groove 323, so that the lifting groove 323 is always in a sealed state. This can prevent the dust inside the feeding hopper 2 from flowing out of the lifting groove 323.

[0038] Additionally, it should be noted that the support frame is mainly used to provide support for the rotating component 32, ensuring its stable position within the feeding hopper 2. When the rotating component 32 is moved downwards, the adjusting screw 312 can be rotated. Under the rotation of the adjusting screw 312, the sliding frame 311 and the support plate 313 can be moved downwards together. The rotating component 32 and the sealing component 33 then move downwards along with the sliding frame 311. During the downward movement, the two ends of the rotating component 32 slide along the corresponding lifting grooves 323. When it slides to the bottom of the lifting grooves 323, the adjusting screw 312 can no longer move the rotating component 32 downwards, and the rotating component 32 and the sealing component 33 reach the preset position. At the same time, when adding dry coal slag into the feeding hopper 2, if only a small amount is added at a time, the height of the rotating component 32 and the sealing component 33 can be lowered by rotating the adjusting screw 312, thus shortening the height difference between the feeding hopper 2 and the sealing component 33, which helps to better suppress dust.

[0039] Please refer to Figure 4 The rotating component 32 includes a rotating roller 321 and a drive motor 322. The rotating roller 321 is located inside the feeding hopper 2. Its two ends are rotatably connected to two support plates 313 after passing through the corresponding lifting grooves 323. The fixed end of the drive motor 322 is fixed to one of the support plates 313, and the driving end of the drive motor 322 is fixed to one of the rotating ends of the rotating roller 321.

[0040] It should be noted that when the sealing component 33 is in the first use state, the rotation of the drive motor 322 can drive the rotating roller 321 to rotate synchronously, thereby causing the sealing component 33 to rotate within the opening of the feeding hopper 2, so as to control the intermittent opening of the feeding hopper 2. When the sealing component 33 is in the second use state, the rotation of the drive motor 322 drives the rotating roller 321 to rotate, so that the sealing component 33 continuously stirs and disperses the wet coal slag accumulated at the discharge port of the feeding hopper 2, so as to achieve the purpose of unblocking.

[0041] Please refer to Figure 9The conveying mechanism 1 includes a conveyor belt 11 and a movable base 12. The top of the movable base 12 is provided with a telescopic component 13. The bottom end of the conveyor belt 11 is connected to the movable base 12, and the top end of the conveyor belt 11 is connected to the telescopic end of the telescopic component 13. The telescopic component 13 is used to adjust the tilt angle of the conveyor belt 11. The feeding hopper 2 is set at the bottom of the conveying mechanism 1 and is used to guide coal slag onto the conveying mechanism 1.

[0042] The embodiments of this specific implementation have been described above. However, this embodiment is not limited to the specific implementation described above. The specific implementation described above is merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this embodiment, all of which are within the protection scope of this embodiment.

Claims

1. A coal ash conveying device for thermal power generation, comprising: A conveying mechanism, a feeding hopper, and a dustproof assembly, characterized in that the dustproof assembly is disposed on the feeding hopper, and the dustproof assembly includes a support member, a rotating member, a sealing member, and a state switching drive member. The support member is connected to the feeding hopper, the rotating member is disposed on the inner side of the feeding hopper, the rotating member has a self-locking lifting function, the rotating member is connected to the support member, the sealing member is connected to the rotating member, and the state switching drive member is installed on the feeding hopper. When the support member drives the rotating member and the sealing member to move downward together, the state switching drive member synchronously drives the sealing member to switch its usage state. When the sealing component is in its first operating state, it is used to transport dry coal slag. The rotating component and the sealing component are located at the upper end of the hopper opening, and together they form a sealing plate structure adapted to the hopper opening to seal the hopper opening. The rotating component drives the sealing component to rotate cyclically at the hopper opening, causing the sealing component to control the hopper opening to open intermittently, thus preventing dust in the hopper from overflowing. When the sealing component is in its second operating state, it is used to transport wet coal slag. The rotating component and the sealing component are located at one end of the hopper outlet, and together they form a stirring roller structure adapted to the lower outlet of the hopper. The rotating component drives the sealing component to rotate at the lower outlet of the hopper, thus crushing and clearing the coal slag accumulated at the lower outlet of the hopper. The sealing component includes two fixed plates, which are staggered vertically on both sides of the rotating component. The rotating component has movable grooves on both sides corresponding to the two fixed plates. One end of each of the two fixed plates is slidably connected to the two movable grooves. A connecting spring is installed between each of the two fixed plates and the corresponding movable groove. The top surface of each of the two fixed plates has several contraction grooves. Movable plates are rotatably installed in each of the contraction grooves. The rotating ends of the movable plates are fixed by a rotating shaft. One side of each of the two movable grooves has several relief grooves corresponding to the contraction grooves. The state switching drive unit includes two first drive parts and two second drive parts. The two first drive parts are respectively disposed in two movable slots and located on both sides of the feeding hopper. Both first drive parts are connected to two fixed plates. When the support member drives the rotating member and the sealing member to move down together, the two second drive parts jointly drive the two fixed plates to slide and retract towards the corresponding movable slots. When the fixed plates are about to move to the preset retraction position, the two first drive parts respectively drive the corresponding movable plates to flip synchronously away from the retraction slots.

2. The coal slag conveying device for thermal power generation according to claim 1, characterized in that, The first drive unit includes a first toothed plate and an incomplete gear. The first toothed plate is fixedly installed inside the movable slot, and the incomplete gear is fixed to the rotating end of the movable plate corresponding to the position of the first toothed plate.

3. The coal slag conveying device for thermal power generation according to claim 2, characterized in that, The second driving unit includes a rotating body, a toothed ring, a second toothed plate, and two connecting slide shafts. The rotating body is rotatably sleeved on the outside of the rotating end of the rotating component. The toothed ring is fixedly sleeved on the outside of the rotating body. The second toothed plate is fixedly installed on a preset downward path of the rotating component. The two connecting slide shafts are respectively fixed to one side of two fixed plates. Both ends of the rotating body are provided with slide grooves, and the ends of the two connecting slide shafts are slidably connected to the two slide grooves respectively.

4. A coal ash conveying device for thermal power generation according to claim 3, characterized in that, The support component includes a sliding frame, an adjusting screw, and two support plates. The sliding frame is slidably sleeved on the outside of the feeding hopper, and the two support plates are symmetrically distributed on both sides of the feeding hopper. The two ends of the sliding frame are fixed to one side of the two support plates, respectively. The connecting ends of the rotating component are connected to the two support plates, respectively. The adjusting screw is rotatably installed on one side of the feeding hopper, and the outer side of the adjusting screw is threadedly connected to one end of the sliding frame.

5. A coal ash conveying device for thermal power generation according to claim 4, characterized in that, The rotating component includes a rotating roller and a drive motor. The feeding hopper is provided with lifting grooves on both sides corresponding to the two support plates. The rotating roller is located inside the feeding hopper, and its two ends are rotatably connected to the two support plates after passing through the corresponding lifting grooves. The fixed end of the drive motor is fixed to one of the support plates, and the driving end of the drive motor is fixed to one of the rotating ends of the rotating roller.

6. A coal ash conveying device for thermal power generation according to claim 5, characterized in that, The length of the support plate is at least twice that of the lifting groove. When the sealing component is in its first use state, the lower end of the support plate seals one side of the lifting groove.

7. A coal ash conveying device for thermal power generation according to claim 6, characterized in that, There are two of each of the first toothed plates and the incomplete gears. The two first toothed plates are symmetrically fixedly installed on the inner side of the movable slot, and the two incomplete gears are respectively fixed on the rotating end of the movable plate corresponding to the position of the first toothed plate.

8. A coal slag conveying device for thermal power generation according to claim 1, characterized in that, The conveying mechanism includes a conveyor belt and a movable base. The top of the movable base is provided with a telescopic component. The bottom end of the conveyor belt intersects with the movable base, and the top end of the conveyor belt is connected to the telescopic end of the telescopic component.

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