Coal cinder conveying device for thermal power generation

By designing dustproof components and state switching drivers in the cinder conveying device, efficient transportation of dry and wet cinders is achieved, dust and dredging problems are solved, and conveying efficiency and equipment reliability are improved.

CN119460808AActive Publication Date: 2025-02-18HUANENG MIANCHI COGENRAION CO LTD
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Patent Information

Application Number
CN202411603419.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-02-18
Estimated Expiration
2044-11-11

AI Technical Summary

Technical Problem

When dealing with dry and wet cinder slag, existing cinder conveying devices have dust and dredging problems, which affects the conveying efficiency and the normal operation of the equipment.

Method used

A thermal power cinder conveying device is designed, using dust-proof components, including support, rotating part, sealing part and state switching drive part, which is solved by two usage states of the sealing part (seal plate and agitating roller). Transportation of dry and wet cinders.

Benefits of technology

It effectively solves the dust problem of dry cinder and the dredging problem of wet cinder, improves the efficiency of cinder conveying and the reliability of equipment, saves water consumption and reduces the moisture risk of equipment.

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Abstract

The invention relates to the technical field of conveying devices, and discloses a thermal power generation coal cinder conveying device which comprises a conveying mechanism, a feeding hopper and a dustproof assembly, the dustproof assembly is arranged on the feeding hopper and comprises a supporting piece, a rotating piece, a blocking piece and a state switching driving piece, the supporting piece is connected with the feeding hopper, and the rotating piece is connected with the blocking piece; the rotating piece is arranged on the inner side of the feeding hopper. The dustproof assembly is arranged in the feeding hopper, when dry coal cinder is conveyed, the opening of the feeding hopper is controlled to be intermittently opened by using the first use state of the dustproof assembly as a blocking structure of the opening of the feeding hopper, normal adding of the coal cinder cannot be affected, dust in the feeding hopper can be intercepted, and the dust cannot overflow outwards easily; when wet coal cinder is conveyed, the blocking piece is used in the second use state and serves as a structure similar to a smashing roller, and the coal cinder accumulated at an outlet in the lower end of the feeding hopper can be smashed and dredged.
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Description

Technical Field

[0001] The present invention relates to the technical field of conveying devices, and more specifically, to a coal slag conveying device for thermal power generation. Background Art

[0002] Coal slag is a kind of industrial solid waste, which is mainly the waste residue discharged from coal-fired power plants, industrial and civil boilers and other equipment, also known as slag. The main components are silicon dioxide, aluminum oxide, iron oxide, calcium oxide, magnesium oxide, etc. Depending on the composition, it can be used to make cement, bricks and refractory materials. Some can be used to make aluminum oxide or refine rare metals such as gallium and germanium.

[0003] Thermal power plants generate a large amount of coal slag every day. In order to facilitate subsequent recycling, thermal power plants generally choose to pile up these coal slag together. In the subsequent transfer and recycling process, the coal slag is transported to the transport vehicle through a special coal slag conveying device. At present, the existing coal slag conveying device generally includes an upper hopper, a conveyor belt and a mobile support mechanism. When in use, the conveying device is moved to the coal slag pile, and the coal slag is added to the upper hopper. The upper hopper quantitatively transports the coal slag to the conveyor belt, and the conveyor belt continuously transports the coal slag to the transport vehicle.

[0004] However, due to the different coal slag stacking environments, there are two types of dry coal slag and wet coal slag. When transporting dry coal slag, when the coal slag enters the upper hopper and when the coal slag falls to the transport vehicle, a large amount of dust will be generated due to the collision of the coal slag falling. The traditional solution is to spray water mist at the upper hopper and the position where the coal slag falls to the transport vehicle. Although it has a good dust reduction effect, it also increases water consumption and makes the coal slag and the upper hopper wet, which makes it easy for the coal slag to be adsorbed on the inner wall of the upper hopper, affecting the normal discharge of the coal slag; when transporting wet coal slag, due to the high viscosity of the coal slag, it will be adsorbed on the inner wall of the upper hopper. When the amount of adsorption is large, it will cause the outlet of the upper hopper to be blocked, and frequent unblocking operations are required, which increases the workload of transportation. Therefore, there is an urgent need for a coal slag device that can simultaneously overcome the dust and unblocking problems when transporting both dry and wet coal slag. Summary of the invention

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

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

[0007] The present invention provides a coal slag conveying device for thermal power generation, comprising: a conveying mechanism, an upper hopper and a dustproof component, wherein the dustproof component is arranged on the upper hopper, the dustproof component comprises a supporting member, a rotating member, a blocking member and a state switching driving member, the supporting member is connected with the upper hopper, the rotating member is arranged on the inner side of the upper hopper, the rotating member has a self-locking lifting function, the rotating member is connected with the supporting member, the blocking member is connected with the rotating member, the state switching driving member is installed on the upper hopper, and when the supporting member drives the rotating member and the blocking member to move downward together, the state switching driving member synchronously drives the blocking member to switch the use state;

[0008] When the blocking member is in a first state of use, it is used to transport dry coal slag, and the rotating member and the blocking member are at the upper end of the upper hopper opening, and the two form a blocking plate structure that is adapted to the upper hopper opening, which is used to block the opening of the upper hopper, and the blocking member is driven by the rotating member to cyclically rotate at the opening position of the upper hopper, so that the blocking member controls the intermittent opening of the upper hopper, so that the dust in the upper hopper is intercepted by the blocking member and is difficult to overflow; when the blocking member is in a second state of use, it is used to transport wet coal slag, and the rotating member and the blocking member are at one end of the upper hopper discharge port, and the two form a stirring roller structure that is adapted to the lower end outlet of the upper hopper, and the blocking member is driven by the rotating member to rotate at the lower end outlet of the upper hopper, so as to crush and dredge the coal slag accumulated at the lower end outlet of the upper hopper.

[0009] As a further optimization scheme of the present invention, the blocking member includes two fixed plates, and the two fixed plates are staggered up and down on both sides of the rotating member. Movable grooves are provided on both sides of the rotating member corresponding to the two fixed plates. One end of the two fixed plates is slidably connected to the two movable grooves respectively. Connecting springs are installed between the two fixed plates and the corresponding movable grooves. A number of contraction grooves are opened on the top surfaces of the two fixed plates, and movable plates are rotatably installed in the contraction grooves. The rotating ends of the movable plates are fixed by a rotating shaft, and a number of contraction grooves are provided on one side of the two movable grooves with corresponding yield grooves.

[0010] As a further optimization scheme of the present invention, the state switching drive member includes two first drive parts and two second drive parts, the two first drive parts are respectively arranged in two movable grooves, the two first drive parts are respectively located on both sides of the upper hopper, and the two first drive parts are connected to two fixed plates, when the support member drives the rotating member and the blocking member to move downward together, the two second drive parts jointly drive the two fixed plates to slide and retract toward the corresponding movable grooves at the same time, and when the fixed plate is about to move to a preset retracted position, the two first drive parts respectively drive the corresponding several movable plates to synchronously flip away from the retracted groove. As a further optimization scheme of the present invention, the first drive part includes a first tooth plate and an incomplete gear, the first tooth plate is fixedly installed on the inner side of the movable groove, and the incomplete gear is fixed to the rotating end of the movable plate corresponding to the position of the first tooth plate.

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

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

[0013] As a further optimization scheme of the present invention, the rotating member includes a rotating roller and a driving motor. Lifting grooves are provided on both sides of the upper hopper corresponding to the two support plates. The rotating roller is located on the inner side of the upper 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 driving motor is fixed to one of the support plates, and the driving end of the driving motor is fixed to one of the rotating ends of the rotating roller. As a further optimization scheme of the present invention, the length of the support plate is at least twice that of the lifting groove. When the blocking member is in the first use state, the lower end of the support plate blocks one side of the lifting groove. As a further optimization scheme of the present invention, the number of the first tooth plates and the incomplete gears are both set to two, and the two first tooth plates are symmetrically fixedly installed on the inner side of the movable groove, and the two incomplete gears are respectively fixed to the rotating ends of the movable plate corresponding to the position of the first tooth plates.

[0014] As a further optimization scheme of the present invention, the conveying mechanism includes a conveyor belt and a mobile base, a telescopic assembly is provided on the top of the mobile base, the bottom end of the conveyor belt is connected to the mobile base, and the top end of the conveyor belt is connected to the telescopic end of the telescopic assembly.

[0015] The beneficial effects of the present invention are:

[0016] The present invention arranges a dustproof component in the upper hopper. When conveying dry coal slag, the first use state of the dustproof component is used as a blocking structure of the upper hopper opening to control the intermittent opening of the upper hopper opening, which will not affect the normal addition of coal slag, but can intercept the dust in the upper hopper and make it difficult for it to overflow, so as to solve the dust problem at the upper hopper position, replace the traditional water mist spraying method, not only save part of the water consumption, but also will not make the dry coal slag and the inner wall of the upper hopper wet, and reduce the influence on the coal slag feeding speed;

[0017] When conveying wet coal slag, the second usage state of the sealing piece, as a structure similar to a crushing roller, can be used to crush and clear the coal slag accumulated at the lower outlet of the upper hopper, which is beneficial to maintaining the normal discharge of wet coal slag, eliminating the need for frequent clearing operations and reducing the workload of conveying wet coal slag. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 It is a structural schematic diagram of an upper hopper and a dust prevention component in a coal slag conveying device for thermal power generation provided by the present invention;

[0020] Figure 3 It is a cross-sectional view of an upper hopper and a dust prevention component in a coal slag conveying device for thermal power generation provided by the present invention;

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

[0022] Figure 5 It is a partial position cutaway diagram of a rotating roller and a blocking member in a coal slag conveying device for thermal power generation provided by the present invention;

[0023] Figure 6 It is a structural schematic diagram between a rotating roller and a second driving part in a coal slag conveying device for thermal power generation provided by the present invention;

[0024] Figure 7 It is a schematic structural diagram between a blocking member and a second driving part in a coal slag conveying device for thermal power generation provided by the present invention;

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

[0026] Fig. 9 The present invention is a schematic structural diagram of a conveying mechanism in a coal slag conveying device for thermal power generation.

[0027] In the figure: 1. conveying mechanism; 11. conveyor belt; 12. movable base; 13. telescopic component; 2. upper hopper; 3. dustproof component; 31. support member; 311. sliding frame; 312. adjusting screw; 313. support plate; 32. rotating member; 321. rotating roller; 322. driving motor; 323. lifting slot; 33. blocking member; 331. fixed plate; 332. movable slot; 333. connecting spring; 334. contraction slot; 335. movable plate; 336. giving way slot; 34. state switching drive member; 341. first tooth plate; 342. incomplete gear; 343. rotating body; 344. gear ring; 345. second tooth plate; 346. connecting sliding shaft; 347. slide slot. DETAILED DESCRIPTION

[0028] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0029] Please refer to Figure 1 to Figure 2A coal slag conveying device for thermal power generation includes: a conveying mechanism 1, an upper hopper 2 and a dustproof component 3, wherein the dustproof component 3 includes a support member 31, a rotating member 32, a blocking member 33 and a state switching driving member 34, the support member 31 is connected to the upper hopper 2, the rotating member 32 is arranged on the inner side of the upper hopper 2, the rotating member 32 is connected to the support member 31, the blocking member 33 is connected to the rotating member 32, and the state switching driving member 34 is installed on the upper hopper 2, which is used to drive the blocking member 33 to switch the use state; the blocking member 33 has two use states, in which the blocking member 3 When the blocking member 33 is in the first use state, the rotating member 32 and the blocking member 33 are located at the upper end of the opening of the upper hopper 2, and the two form a blocking plate structure adapted to the opening of the upper hopper 2, which is used to block the opening of the upper hopper 2. The blocking member 33 is driven by the rotating member 32 to cyclically rotate at the opening position of the upper hopper 2, so that the blocking member 33 controls the intermittent opening of the opening of the upper hopper 2; when the blocking member 33 is in the second use state, the rotating member 32 and the blocking member 33 are located at one end of the discharge port of the upper hopper 2, and the two form a stirring roller structure adapted to the outlet at the lower end of the upper hopper 2.

[0030] Please refer to Figure 8 It should be noted that when the dry coal slag is transported, the blocking member 33 is in the first use state. When the blocking member 33 rotates to open the opening of the upper hopper 2, the coal slag is added into the upper hopper 2. When the blocking member 33 rotates to close the opening of the upper hopper 2, the dust in the upper hopper 2 is blocked by the blocking member 33 and is difficult to overflow. In this way, the dust problem at the position of the upper hopper 2 is solved, replacing the traditional method of spraying water mist, which not only saves part of the water consumption, but also does not make the dry coal slag and the inner wall of the upper hopper 2 wet, thereby reducing the impact on the coal slag discharge speed; when the wet coal slag is transported , the blocking member 33 is switched from the first use state to the second use state, and the supporting member 31 drives the rotating member 32 and the blocking member 33 to move down to the lower end of the inner side of the upper hopper 2, and the state switching driving member 34 synchronously drives the blocking member 33 to switch to the second use state, and the rotating member 32 drives the blocking member 33 to rotate at the lower end outlet of the upper hopper 2. The structure similar to a crushing roller composed of the rotating member 32 and the blocking member 33 can crush and dredge the coal slag accumulated at the lower end outlet of the upper hopper 2, which is beneficial to maintain the normal discharge of wet coal slag, without the need for frequent dredging operations, and reducing the workload of conveying wet coal slag.

[0031] Please refer to Figures 3 to 5The blocking member 33 includes two fixed plates 331, and the two fixed plates 331 are staggered up and down on both sides of the rotating member 32. The rotating member 32 is provided with movable grooves 332 on both sides corresponding to the two fixed plates 331. One end of the two fixed plates 331 is slidably connected with the two movable grooves 332 respectively. Two connecting springs 333 are installed between the two fixed plates 331 and the corresponding movable grooves 332. Nine contraction grooves 334 are opened on the top surfaces of the two fixed plates 331. Active plates 335 are rotatably installed in the nine contraction grooves 334. The rotating ends of the nine movable plates 335 are fixed by a rotating shaft. One side of the two movable grooves 332 is provided with nine yield grooves 336 corresponding to the contraction grooves 334.

[0032] When the cam 331 is in the state of being moved, the stopper 332 is in the state of being moved, and the stopper 333 is in the state of being moved. The plugging member 33 is in the second state of use, and the fixed plate 331 is contracted to shorten the length of the plugging member 33 exposed outside the rotating member 32. The contracted fixed plate 331 can adapt to the narrower discharge port of the upper hopper 2, so that it can be rotated at the discharge port of the upper hopper 2 later. The plugging member 33 in the second state of use, its two fixed plates 331 and movable plate 335 are evenly distributed on the periphery of the rotating member 32, and form a comb tooth structure on the periphery of the rotating member 32, forming a structure similar to a stirring roller. Then, the plugging member 33 is driven to rotate together by the rotating member 32. After the wet coal slag enters the upper hopper 2, if it is concentrated at the discharge port of the upper hopper 2, the accumulated wet coal slag can be stirred and scattered by the rotation of the plugging member 33, so that it can fall from the discharge port of the upper hopper 2, thereby automatically clearing the upper hopper 2.

[0033] Please refer to Figures 5 to 7The state switching driving member 34 includes two first driving parts and two second driving parts. The two first driving parts are respectively arranged in the two movable grooves 332. The two first driving parts are respectively located on both sides of the upper hopper 2, and the two first driving parts are connected to the two fixed plates 331. When the supporting member 31 drives the rotating member 32 and the blocking member 33 to move downward together, the two second driving parts jointly drive the two fixed plates 331 to slide and shrink toward the corresponding movable grooves 332 at the same time. When the fixed plate 331 is about to move to the preset shrinkage position, the two first driving parts respectively drive the corresponding nine movable plates 335 to synchronously flip away from the shrinkage groove 334.

[0034] Specifically, the first driving part includes two first tooth plates 341 and two incomplete gears 342. The two first tooth plates 341 are symmetrically fixedly installed on the inner side of the movable groove 332. The two incomplete gears 342 are respectively fixed on the rotating ends of the movable plate 335 corresponding to the positions of the first tooth plates 341. The second driving part includes a rotating body 343, a gear ring 344, a second tooth plate 345 and two connecting slide shafts 346. The rotating body 343 is sleeved on the outer side of the rotating end of the rotating member 32. The gear ring 344 is fixedly sleeved on the outer side of the rotating body 343. The second tooth plate 345 is fixedly installed on the preset downward movement path of the rotating member 32. The two connecting slide shafts 346 are respectively fixed to one side of the two fixed plates 331. Slide grooves 347 are provided at both ends of the rotating body 343. The ends of the two connecting slide shafts 346 are respectively slidably connected to the two slide grooves 347.

[0035] It should be noted that when the blocking member 33 is switched to the second use state, the support member 31 drives the rotating member 32 and the blocking member 33 to move downward together. At this time, the rotating body 343 moves downward together with the rotating member 32. When the gear ring 344 moves downward and meshes with the corresponding second tooth plate 345, the rotating member 32 continues to move downward, so that the gear ring 344 can rotate along the second tooth plate 345, thereby driving the rotating body 343 to rotate. Under the rotation of the rotating body 343, the two ends of the rotating body 343 are The slide grooves 347 exert force on the two connecting slide shafts 346 respectively, driving the connecting slide shafts 346 to slide horizontally, and the fixed plate 331 is driven by the connecting slide shafts 346 at both ends to gradually slide and shrink into the movable groove 332, and the nine movable plates 335 on the fixed plate 331 move and shrink along with the fixed plate 331. When the end of the fixed plate 331 is about to fit with the inner wall of the movable groove 332, the incomplete gear 342 on the movable plate 335 starts to fit with the corresponding first gear. When the locking cam 334 is in the unlocking state, the locking cam 335 is in the unlocking state, and the locking cam 335 is locked.

[0036] Please refer to Figure 3 to Figure 4 The supporting member 31 comprises a sliding frame body 311, an adjusting screw rod 312 and two supporting plates 313. The sliding frame body 311 is slidably sleeved on the outer side of the upper hopper 2. The two supporting plates 313 are symmetrically distributed on both sides of the upper hopper 2. The two ends of the sliding frame body 311 are respectively fixed to one side of the two supporting plates 313. The connecting ends of the rotating member 32 are respectively connected to the two supporting plates 313. The adjusting screw rod 312 is rotatably mounted on one side of the upper hopper 2. The outer side of the adjusting screw rod 312 is threadedly connected to one end of the sliding frame body 311. The upper hopper 2 and the two supporting plates 313 are both provided with lifting grooves 323 on both sides corresponding to the two supporting plates. The lifting grooves 323 serve as the lifting path of the rotating member 32. The second tooth plate 345 is fixed to 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 blocking member 33 is in the first use state, the lower end of the support plate 313 blocks the lifting groove 323 on the side of the upper hopper 2. When the blocking member 33 moves downward, the support plate 313 also moves downward synchronously, so that its upper end still blocks the lifting groove 323, so that the lifting groove 323 is always in a blocked state, thereby preventing dust inside the upper hopper 2 from flowing out of the lifting groove 323.

[0038] When the cam 312 is in the working state, the adjusting screw 312 can be rotated to adjust the height of the cam 312 so as to shorten the cam 312 and prevent the cam 312 from sliding downward.

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

[0040] It should be noted that when the blocking member 33 is in the first use state, the driving motor 322 is rotated to drive the rotating roller 321 to rotate synchronously, thereby causing the blocking member 33 to rotate in the opening of the upper hopper 2 to achieve intermittent opening of the upper hopper 2. When the blocking member 33 is in the second use state, the driving motor 322 drives the rotating roller 321 to rotate, so that the blocking member 33 continuously stirs and breaks up the wet coal slag accumulated at the discharge port of the upper hopper 2 to achieve the purpose of dredging.

[0041] Please refer to Fig. 9The conveying mechanism 1 includes a conveyor belt 11 and a movable base 12. A telescopic assembly 13 is provided on the top of the movable base 12. 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 assembly 13. The telescopic assembly 13 is used to adjust the inclination angle of the conveyor belt 11. The upper hopper 2 is arranged at the bottom end of the conveying mechanism 1, and is used to introduce coal slag into the conveying mechanism 1.

[0042] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. A coal slag conveying device for thermal power generation, comprising: A conveying mechanism, an upper hopper and a dust-proof component, characterized in that the dust-proof component is arranged on the upper hopper, the dust-proof component comprises a support member, a rotating member, a blocking member and a state switching driving member, the support member is connected to the upper hopper, the rotating member is arranged on the inner side of the upper hopper, the rotating member has a self-locking lifting function, the rotating member is connected to the support member, the blocking member is connected to the rotating member, the state switching driving member is installed on the upper hopper, when the support member drives the rotating member and the blocking member to move downward together, the state switching driving member synchronously drives the blocking member to switch the use state; when the blocking member is in the first use state, it is used to convey the dry coal slag, and the rotating member and the blocking member are in The upper end of the upper hopper opening, and the two form a sealing plate structure adapted to the upper hopper opening, which is used to seal the opening of the upper hopper, and the sealing member is driven by the rotating member to rotate cyclically at the opening position of the upper hopper, so that the sealing member controls the intermittent opening of the upper hopper, so that the dust in the upper hopper is intercepted by the sealing member and is difficult to overflow; when the sealing member is in the second use state, it is used to transport wet coal slag, and the rotating member and the sealing member are at one end of the upper hopper discharge port, and the two form a stirring roller structure adapted to the lower end outlet of the upper hopper, and the sealing member is driven by the rotating member to rotate at the lower end outlet of the upper hopper, which is used to crush and dredge the coal slag accumulated at the lower end outlet of the upper hopper.

2. A coal slag conveying device for thermal power generation according to claim 1, characterized in that: The blocking member includes two fixed plates, and the two fixed plates are staggered up and down on both sides of the rotating member. The rotating member is provided with movable grooves on both sides corresponding to the two fixed plates. One end of the two fixed plates is slidingly connected to the two movable grooves respectively. Connecting springs are installed between the two fixed plates and the corresponding movable grooves. The top surfaces of the two fixed plates are provided with a plurality of contraction grooves, and movable plates are rotatably installed in the plurality of contraction grooves. The rotating ends of the plurality of movable plates are fixed by a rotating shaft, and one side of the two movable grooves is provided with a plurality of yield grooves corresponding to the contraction grooves.

3. A coal slag conveying device for thermal power generation according to claim 2, characterized in that: The state switching drive member includes two first drive parts and two second drive parts, the two first drive parts are respectively arranged in two movable grooves, the two first drive parts are respectively located on both sides of the upper hopper, and the two first drive parts are connected to two fixed plates. When the support member drives the rotating member and the blocking member to move downward together, the two second drive parts jointly drive the two fixed plates to slide and shrink toward the corresponding movable grooves at the same time. When the fixed plate is about to move to the preset shrinkage position, the two first drive parts respectively drive the corresponding several movable plates to synchronously flip away from the shrinkage groove.

4. A coal slag conveying device for thermal power generation according to claim 3, characterized in that: The first driving part includes a first tooth plate and an incomplete gear, the first tooth plate is fixedly installed on the inner side of the movable groove, and the incomplete gear is fixed on the rotating end of the movable plate corresponding to the position of the first tooth plate.

5. A coal slag conveying device for thermal power generation according to claim 4, characterized in that: The second driving part includes a rotating body, a gear ring, a second gear plate and two connecting sliding shafts. The rotating body is rotatably sleeved on the outside of the rotating end of the rotating member, the gear ring is fixedly sleeved on the outside of the rotating body, and the second gear plate is fixedly installed on a preset downward movement path of the rotating member. The two connecting sliding shafts are respectively fixed to one side of the two fixed plates, and sliding grooves are provided at both ends of the rotating body. The ends of the two connecting sliding shafts are respectively slidably connected to the two sliding grooves.

6. A coal slag conveying device for thermal power generation according to claim 5, characterized in that: The support member includes a sliding frame, an adjusting screw and two supporting plates. The sliding frame is slidably mounted on the outside of the upper hopper. The two supporting plates are symmetrically distributed on both sides of the upper hopper. The two ends of the sliding frame are respectively fixed to one side of the two supporting plates. The connecting ends of the rotating member are respectively connected to the two supporting plates. The adjusting screw is rotatably installed on one side of the upper hopper. The outer side of the adjusting screw is threadedly connected to one end of the sliding frame.

7. A coal slag conveying device for thermal power generation according to claim 6, characterized in that: The rotating part includes a rotating roller and a driving motor. Lifting grooves are provided on both sides of the upper hopper corresponding to the two support plates. The rotating roller is located on the inner side of the upper 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 driving motor is fixed to one of the support plates, and the driving end of the driving motor is fixed to one of the rotating ends of the rotating roller.

8. A coal slag conveying device for thermal power generation according to claim 7, characterized in that: The length of the support plate is at least twice that of the lifting slot. When the blocking member is in the first use state, the lower end of the support plate blocks one side of the lifting slot.

9. A coal slag conveying device for thermal power generation according to claim 8, characterized in that: There are two first tooth plates and two incomplete gears, and the two first tooth plates are symmetrically fixedly installed on the inner side of the movable groove. The two incomplete gears are respectively fixed on the rotating ends of the movable plate corresponding to the positions of the first tooth plates.

10. The coal slag conveying device for thermal power generation according to claim 1, characterized in that: The conveying mechanism comprises a conveyor belt and a movable base. A telescopic assembly is arranged on the top of the movable base. The bottom end of the conveyor belt is connected with the movable base, and the top end of the conveyor belt is connected with the telescopic end of the telescopic assembly.

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