Ash conveying structure for a boiler of a thermal power plant

Abstract

The application relates to a boiler ash conveying structure of a thermal power plant, which comprises a rack and a boiler body fixedly arranged on the rack, a partition plate is fixedly arranged in the boiler body, a coal combustion area is arranged above the partition plate, a slag area is arranged below the partition plate, and filter holes for passing through the slag are arranged on the partition plate; a cooling bin is fixedly arranged on the rack and located at the bottom of the boiler body, a first discharging opening is arranged at the bottom of the slag area, a material guide pipe is communicated with the first discharging opening, the material guide pipe is communicated with the cooling bin, and a first sealing assembly for sealing the first discharging opening is arranged in the slag area; the application further comprises a slag box, a second discharging opening is arranged in the bottom wall of the cooling bin, a second sealing assembly for sealing the second discharging opening is arranged on the cooling bin, a conveying belt is arranged on the rack and located at the bottom of the cooling bin, and the conveying belt is used for conveying the slag into the slag box. The application has the effect of reducing the influence of boiler slag cleaning on the working efficiency of the boiler.

Description

Technical Field

[0001] This application relates to the technical field of ash removal in thermal power plant boilers, and in particular to an ash conveying structure for thermal power plant boilers. Background Technology

[0002] A thermal power plant is a thermal power plant that generates electricity while simultaneously using extracted or exhausted steam to provide heat to users. It heats water in a boiler to produce high-temperature steam, which then drives a steam turbine to generate electricity.

[0003] Currently, boilers often use coal as an energy source during operation. After coal combustion, coal residue and a large amount of soot are left behind, commonly known as slag. Therefore, after a period of use, the slag inside the boiler needs to be cleaned. When cleaning the slag inside the boiler, the boiler needs to be shut down and the slag needs to be completely cooled before opening the bottom discharge port of the boiler and conveying the slag to the slag box for centralized processing via a conveyor belt. This seriously affects the working efficiency of the boiler. Summary of the Invention

[0004] In order to reduce the impact of boiler slag cleaning on boiler operating efficiency, this application provides an ash conveying structure for a thermal power plant boiler.

[0005] This application provides an ash conveying structure for a thermal power plant boiler, which adopts the following technical solution:

[0006] A boiler ash conveying structure for a thermal power plant includes a frame and a boiler body fixedly mounted on the frame. A partition is fixedly mounted inside the boiler body, with a coal combustion zone above the partition and a slag zone below it. The partition has filter holes for slag to pass through. A cooling chamber is fixedly mounted on the frame and located at the bottom of the boiler body. A first discharge port is located at the bottom of the slag zone, connected to a guide pipe that is also connected to the cooling chamber. A first sealing component for closing the first discharge port is located within the slag zone. The boiler body also includes a slag box. A second discharge port is located on the bottom wall of the cooling chamber, and a second sealing component for closing the second discharge port is located on the cooling chamber. A conveyor belt is mounted on the frame and located at the bottom of the cooling chamber, used to transport slag into the slag box.

[0007] By adopting the above technical solution, when the boiler body is in use, coal burns in the coal combustion zone, and the slag produced by coal combustion falls into the slag zone through the filter holes on the baffle. When the slag in the slag zone accumulates to a certain amount, the first sealing component is opened, and the slag in the slag zone enters the cooling chamber through the guide pipe for cooling. After the slag is cooled, the second sealing component is opened, and the slag in the cooling chamber falls onto the conveyor belt and is transported to the slag box for centralized processing, thereby cleaning the slag inside the boiler body. While cleaning the slag inside the boiler body, the boiler body can continue to operate, thus greatly reducing the impact of slag cleaning on the working efficiency of the boiler body.

[0008] Optionally, the first sealing assembly includes a first cover and a first driving member. The first cover is slidably disposed in the slag zone in a vertical direction and is adapted to the first material discharge port. The first driving member is used to drive the first cover to slide. A heat insulation plate is embedded in the first cover.

[0009] By adopting the above technical solution, the first cover is slid by the first driving component, so that the first cover is pressed against the first material discharge port, thereby sealing the first material discharge port. By setting a heat insulation plate inside the first cover, heat from the boiler body is effectively prevented from entering the cooling chamber and affecting the cooling of the slag in the cooling chamber.

[0010] Optionally, a rotating frame is rotatably arranged inside the first discharge port, and a tamping rod is fixedly arranged on the rotating frame. The length direction of the tamping rod is vertical, and the tamping rod is eccentrically arranged with respect to the rotation axis of the rotating frame. A telescopic rod is slidably arranged on the tamping rod along its length direction. A turntable is rotatably arranged on the first cover, and the telescopic rod is fixedly connected to the turntable. A first drive source for driving the rotating frame to rotate is provided inside the first discharge port.

[0011] By adopting the above technical solution, since the slag contains a large amount of soot, when the first discharge port is opened, the slag is not easy to enter the guide pipe due to the tension between the soot. When the first cover is opened, the first cover drives the telescopic rod on the tamping rod to slide and enter the slag zone. The first drive source drives the rotating frame to rotate, which drives the tamping rod to rotate. The tamping rod and the telescopic rod stir the slag in the slag zone, thereby facilitating the slag to enter the guide pipe.

[0012] Optionally, the second sealing assembly includes a second cover and a second driving source. The second cover is rotatably disposed on the bottom wall of the cooling chamber and is adapted to the second discharge port. The second driving source is used to drive the second cover to rotate.

[0013] By adopting the above technical solution, the second cover is rotated by the second driving source, so that the second cover fits with the second discharge port, thereby sealing the second discharge port.

[0014] Optionally, the cooling chamber is connected to an air supply duct and a dust collection duct. The air supply duct is connected to a fan for supplying air into the cooling chamber, and the dust collection duct is connected to a slag box. The dust collection duct is equipped with a dust collector for sucking the soot from the cooling chamber into the slag box.

[0015] By adopting the above technical solution, air is blown into the cooling chamber by a fan, thereby accelerating the cooling of the slag in the cooling chamber. In addition, most of the soot in the slag is sucked into the slag box by a dust collector and dust collection pipe, which effectively avoids the slag falling onto the conveyor belt and the large amount of soot being stirred up and polluting the surrounding environment when the conveyor belt is transporting the slag.

[0016] Optionally, a screen is hinged inside the cooling chamber. The screen is used to filter coal slag in the slag and is adapted to the cooling chamber. A drive assembly for driving the screen to deflect is provided inside the cooling chamber. The connection ends of the material guide pipe and the air supply pipe with the cooling chamber are located above the screen, and the connection end of the dust suction pipe with the cooling chamber is located below the screen.

[0017] By adopting the above technical solution, after the slag enters the cooling chamber through the feed pipe, the slag is separated from the flue dust by the screen, which effectively avoids the clumping of slag and flue dust. Furthermore, after separating the slag and flue dust, it is easier for the dust extraction pipe and dust collector to remove the flue dust from the cooling chamber. The air entering the cooling chamber through the air supply pipe must first pass through the slag and screen before entering the dust extraction pipe, thereby improving the cooling effect on the slag.

[0018] Optionally, the drive assembly includes a support frame and a second drive member. The support frame is slidably disposed in the cooling chamber in a vertical direction. The second drive member is used to drive the support frame to slide. A connecting block is slidably disposed on the support frame in the direction perpendicular to the rotation axis of the screen disk. The screen disk is hinged to the connecting block.

[0019] By adopting the above technical solution, the support frame is driven to slide by the second driving component, the connecting block slides on the support frame, and thus drives the screen plate to deflect upward or downward.

[0020] Optionally, the support frame includes a sliding frame and a buffer frame. The second driving member is used to drive the sliding frame to slide. The buffer frame is slidably mounted on the sliding frame in a vertical direction. The sliding frame is provided with an elastic member for driving the buffer frame to slide away from the sliding frame. The connecting block is slidably mounted on the buffer frame. The cooling chamber is provided with a vibration assembly for driving the screen plate to vibrate.

[0021] By adopting the above technical solution, when screening slag, the screen disc is driven to vibrate by the vibration component, thereby improving the screening effect of the screen disc on coal slag and flue ash.

[0022] Optionally, the vibration assembly includes a cam and a third drive source. The cam is rotatably disposed within the cooling chamber, and the third drive source is used to drive the cam to rotate. A fixing rod is fixedly disposed on the upper side wall of the screen plate, and the cam is used to abut against the fixing rod.

[0023] By adopting the above technical solution, the cam is driven to rotate by the third drive source, and the cam abuts against the fixed rod, thereby driving the screen plate to press down. Then, the screen plate slides up under the elastic force of the elastic element, thereby causing the screen plate to vibrate.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. When the boiler is in use, coal burns in the combustion zone. The slag produced by coal combustion falls into the slag zone through the filter holes on the baffle. When the slag in the slag zone accumulates to a certain amount, the first sealing component is opened, and the slag in the slag zone enters the cooling chamber through the guide pipe for cooling. After the slag is cooled, the second sealing component is opened, and the slag in the cooling chamber falls onto the conveyor belt and is transported to the slag box for centralized processing, thus cleaning the slag inside the boiler body. While cleaning the slag inside the boiler body, the boiler can continue to operate, thereby greatly reducing the impact of slag cleaning on the working efficiency of the boiler body.

[0026] 2. Because the slag contains a large amount of soot, when the first discharge port is opened, the slag is not easy to enter the guide pipe due to the tension between the soot. When the first cover is opened, the first cover drives the telescopic rod on the tamping rod to slide and enter the slag zone. The first drive source drives the rotating frame to rotate, which drives the tamping rod to rotate. The tamping rod and the telescopic rod stir the slag in the slag zone, thus making it easier for the slag to enter the guide pipe.

[0027] 3. By blowing air into the cooling chamber through a fan, the cooling of the slag in the cooling chamber is accelerated. A vacuum cleaner and a vacuum pipe suck most of the soot in the slag into the slag box, which effectively prevents the slag from falling onto the conveyor belt and the large amount of soot from being stirred up by the conveyor belt when transporting the slag, thus avoiding pollution to the surrounding environment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0029] Figure 2 This is a partial structural cross-sectional view of an embodiment of this application, mainly used to illustrate the structural schematic diagram of the boiler body;

[0030] Figure 3 yes Figure 2 Enlarged view of section A;

[0031] Figure 4This is a partial structural schematic diagram of an embodiment of this application;

[0032] Figure 5 yes Figure 4 Enlarged view of section B;

[0033] Figure 6 This is a partial structural cross-sectional view of an embodiment of this application, mainly used to illustrate the structural schematic of the cooling chamber;

[0034] Figure 7 yes Figure 6 A magnified view of section C.

[0035] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Slag box; 21. Feed inlet; 22. Discharge outlet; 23. Box door; 24. Dust collection box; 25. Vacuum cleaner; 26. Connection port; 27. Baffle; 28. Servo cylinder; 3. Conveyor belt; 4. Boiler body; 41. Baffle plate; 411. Filter hole; 42. First discharge port; 43. Guide pipe; 44. First cover; 441. Heat insulation plate; 442. Turntable; 45. First driving component; 46. Fixed frame; 47. Rotating frame; 471. Tamping rod; 472. Telescopic rod; 48. First drive source; 5. Cooling chamber; 51. Second discharge port; 52. Second cover; 521. Worm gear; 53. Second drive source; 531. Worm; 54. Air supply duct; 55. Dust suction duct; 56. Fan; 57. Screen plate; 571. Frame; 572. Screen; 573. Fixed rod; 58. Second drive component; 59. Mounting bracket; 6. Support frame; 61. Sliding frame; 62. Buffer frame; 63. Elastic component; 64. Connecting block; 7. Vibration assembly; 71. Cam; 72. Third drive source. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0037] This application discloses an ash conveying structure for a thermal power plant boiler. (Refer to...) Figure 1 The system includes a frame 1, a slag box 2, a conveyor belt 3, a boiler body 4 and a cooling chamber 5 fixedly mounted on the frame 1. The cooling chamber 5 is located below the boiler body 4, and one side of the conveyor belt 3 is located below the cooling chamber 5. The side wall of the slag box 2 has a feed inlet 21. The conveyor belt 3 passes through the feed inlet 21 and extends into the slag box 2. The side wall of the slag box 2 near the bottom also has a discharge outlet 22. A door 23 is hinged to the discharge outlet 22 and is fixed to the slag box 2 by a buckle.

[0038] Reference Figure 2A baffle plate 41 is fixedly installed inside the boiler body 4. The baffle plate 41 is horizontally arranged. The area above the baffle plate 41 is the coal combustion zone, and the area below the baffle plate 41 is the slag zone. Multiple filter holes 411 are opened on the baffle plate 41. The opening size of the filter holes 411 gradually decreases from the top wall to the bottom wall of the baffle plate 41. When the boiler body 4 is in use, the coal is burned in the coal combustion zone. The slag produced by the coal combustion falls into the slag zone through the filter holes 411 on the baffle plate 41. The opening size of the filter holes 411 gradually decreases from the top wall to the bottom wall of the baffle plate 41, so the slag is not easy to accumulate on the baffle plate 41.

[0039] Reference Figure 1 , 2 The bottom wall of the boiler body 4 is provided with a first discharge port 42, which is connected to a guide pipe 43, which is connected to the cooling chamber 5. The bottom wall of the boiler body 4 gradually slopes downwards along the direction close to the first discharge port 42, so that the slag can pass through the first discharge port 42 and enter the guide pipe 43.

[0040] Reference Figure 3 A first sealing assembly for sealing the first material discharge port 42 is provided in the slag zone. The first sealing assembly includes a first cover 44 and a first driving member 45. The first cover 44 is slidably disposed in the slag zone in the vertical direction and is adapted to the first material discharge port 42. The top wall of the first cover 44 is conical. A fixing frame 46 is fixedly disposed in the first material discharge port 42. The fixing frame 46 is located in the guide pipe 43. A first guide rod is fixedly disposed on the bottom wall of the first cover 44. The length direction of the first guide rod is vertical. A first guide hole is opened on the fixing frame 46 in the vertical direction. The first guide rod passes through the first guide hole and is slidably connected to the fixing frame 46.

[0041] Reference Figure 3 The first cover 44 has a heat insulation cavity, and a heat insulation plate 441 is fixedly installed in the heat insulation cavity. The heat insulation plate 441 is made of asbestos. The first driving component 45 includes a first cylinder, which is fixedly installed on the fixed frame 46. The piston rod of the first cylinder is vertically installed and fixedly connected to the first guide rod. By installing the heat insulation plate 441 in the first cover 44, the heat in the boiler body 4 is effectively prevented from entering the cooling chamber 5 and affecting the cooling of the slag in the cooling chamber 5.

[0042] Reference Figure 3 A rotating frame 47 is rotatably mounted on the fixed frame 46. The rotating shaft of the rotating frame 47 is vertically mounted. A first drive source 48 for driving the rotating frame 47 to rotate is mounted on the fixed frame 46. The first drive source 48 includes a first motor, which is fixedly mounted on the fixed frame 46. The output shaft of the first motor is fixedly connected to the rotating frame 47.

[0043] Reference Figure 3A tamping rod 471 is fixedly mounted on the rotating frame 47. The length direction of the tamping rod 471 is vertical, and the first guide rod is eccentrically set with the rotation axis of the rotating frame 47. A telescopic rod 472 is slidably sleeved on the tamping rod 471 along the length direction of the first guide rod. An annular groove is opened on the bottom wall of the first cover 44 along the circumference of the first cover 44. A turntable 442 is rotatably mounted in the annular groove. The rotation axis of the turntable 442 is collinear with the rotation axis of the rotating frame 47. The telescopic rod 472 is fixedly connected to the turntable 442. Because the slag contains a large amount of soot, when the first discharge port 42 is opened, the slag is not easy to enter the guide pipe 43 due to the tension between the soot. When the first cover 44 is opened, the first cover 44 drives the telescopic rod 472 on the tamping rod 471 to slide and enter the slag zone. The first motor drives the rotating frame 47 to rotate, which drives the tamping rod 471 to rotate. The tamping rod 471 and the telescopic rod 472 stir the slag in the slag zone, thereby facilitating the slag to enter the guide pipe 43.

[0044] Reference Figure 4 , 5 The bottom wall of the cooling chamber 5 is provided with a second discharge port 51. The bottom wall of the cooling chamber 5 gradually slopes downward along the direction close to the second discharge port 51. The cooling chamber 5 is provided with a second sealing assembly for sealing the second discharge port 51. The second sealing assembly includes a second cover 52 and a second driving source 53. The second cover 52 is rotatably disposed on the bottom wall of the cooling chamber 5 and is adapted to the second discharge port 51.

[0045] Reference Figure 5 The second drive source 53 includes a second motor, which is fixedly mounted on the cooling chamber 5. A worm gear 531 is coaxially fixedly connected to the output shaft of the second motor. A worm wheel 521 is coaxially fixedly connected to the rotating shaft of the second cover 52. The worm gear 531 meshes with the worm wheel 521.

[0046] Reference Figure 4 The cooling chamber 5 is connected by an air supply duct 54 and a dust extraction duct 55. A fan 56 is fixedly installed on the side wall of the cooling chamber 5. The air outlet of the fan 56 is connected to the air supply duct 54. A dust collection box 24 and a dust collector 25 are fixedly installed on the side wall of the slag box 2. The dust extraction duct 55 is connected to the inlet end of the dust collector 25. The outlet end of the dust collector 25 is connected to the dust collection box 24. A connection port 26 connected to the slag box 2 is opened at one end of the dust collection box 2 near the slag box 2. The bottom wall of the dust collection box 24 is inclined downward along the direction close to the slag box 2. A baffle 27 is slidably installed on the lower wall of the connection port 26 and the inner edge of the slag box 2. The baffle 27 is adapted to the connection port 26. A servo cylinder 28 is fixedly installed inside the slag box 2. The piston rod of the servo cylinder 28 is fixedly connected to the baffle 27.

[0047] Air is blown into the cooling chamber 5 by the fan 56, thereby accelerating the cooling of the slag in the cooling chamber 5. The dust collector 25 and the dust collection pipe 55 draw most of the soot in the slag into the dust collection box 24, effectively preventing the slag from falling onto the conveyor belt 3 and preventing a large amount of soot from being stirred up and polluting the surrounding environment when the conveyor belt 3 is transporting the slag. When the dust collector 25 stops working, the baffle 27 is driven to slide by the servo cylinder 28, so that the connection port 26 is opened and the soot in the dust collection box 24 enters the slag box 2 through the connection port 26.

[0048] Reference Figure 6 The cooling chamber 5 is equipped with a screen plate 57, which includes a frame 571 and a screen 572 fixedly installed in the frame 571. A hinge shaft is fixedly installed on the inner side wall of the cooling chamber 5. The hinge shaft is horizontally set and the frame 571 is rotatably connected to the hinge shaft. The screen 572 is made of stainless steel wire. The frame 571 is adapted to the cooling chamber 5. The connecting ends of the material guide pipe 43 and the air supply pipe to the cooling chamber 5 are located above the screen plate 57, and the connecting end of the dust suction pipe 55 to the cooling chamber 5 is located below the screen plate 57.

[0049] Reference Figure 6 , 7 The cooling chamber 5 is equipped with a drive assembly for driving the screen plate 57 to deflect. The drive assembly includes a support frame 6 and a second drive member 58. The support frame 6 includes a sliding frame 61 and a buffer frame 62. A mounting frame 59 is fixedly installed on the inner side wall of the cooling chamber 5 away from the hinge axis. The sliding frame 61 is slidably installed on the mounting frame 59 in the vertical direction. The second drive member 58 includes a second cylinder. The second cylinder is fixedly installed in the cooling chamber 5. The piston rod of the second cylinder is vertical and fixedly connected to the sliding frame 61.

[0050] Reference Figure 7 The buffer frame 62 is positioned above the sliding frame 61. Multiple second guide rods are fixedly mounted on the buffer frame 62. The length direction of the second guide rods is vertical. Multiple second guide holes are opened on the sliding frame 61 along the vertical direction. Each second guide hole corresponds to a second guide rod. The second guide rod slides through the second guide hole. A limiting block is fixedly mounted on the bottom wall of the second guide rod. The limiting block is used to prevent the second guide rod from detaching from the second guide hole.

[0051] Reference Figure 7 The sliding frame 61 is provided with an elastic element 63 for driving the buffer frame 62 to slide away from the sliding frame 61. The elastic element 63 includes a compression spring. Each second guide rod is fitted with a compression spring. The compression spring is located between the sliding frame 61 and the buffer frame 62. One end of the second compression spring abuts against the sliding frame 61, and the other end of the compression spring abuts against the buffer frame 62. The top wall of the buffer frame 62 is slidably fitted with a connecting block 64 along the direction perpendicular to the hinge axis. The side of the frame 571 away from the hinge axis is hinged to the connecting block 64.

[0052] Before entering the cooling chamber 5, the slag is driven by the second cylinder to slide the sliding frame 61 upwards, and the connecting block 64 slides away from the hinge shaft on the buffer frame 62, placing the screen plate 57 horizontally inside the cooling chamber 5. After the slag enters the cooling chamber 5 through the guide pipe 43, the slag is separated from the flue ash by the screen plate 57, which effectively prevents the slag and flue ash from clumping. Furthermore, after separating the slag and flue ash, it is easier for the dust suction pipe 55 and the dust collector 25 to remove the flue ash from the cooling chamber 5. The air entering the cooling chamber 5 through the air supply pipe 54 needs to pass through the slag and the screen plate 57 before entering the dust suction pipe 55, thereby improving the cooling effect on the slag.

[0053] Reference Figure 4 , 6 The cooling chamber 5 is equipped with a vibration assembly 7 for driving the screen disc 57 to vibrate. The vibration assembly 7 includes a cam 71 and a third drive source 72. The cam 71 is rotatably mounted inside the cooling chamber 5. A fixing rod 573 is fixedly mounted on the upper side wall of the frame 571. An arc-shaped groove is opened at the end of the fixing rod 573 away from the frame 571. When the frame 571 is horizontal, the cam 71 is located in the arc-shaped groove of the fixing rod 573 and abuts against the fixing rod 573. The third drive source 72 includes a third motor, which is fixedly mounted on the side wall of the cooling chamber 5. The output shaft of the third motor extends into the cooling chamber 5 and is fixedly connected to the cam 71. When the screen disc 57 is screening slag, the third motor drives the cam 71 to rotate. The cam 71 abuts against the fixing rod 573, thereby driving the screen disc 57 to press down. Then, the screen disc 57 slides up under the elastic force of the compression spring, thereby vibrating the screen disc 57 and improving the screening effect of the screen disc 57 on slag and soot.

[0054] The implementation principle of the ash conveying structure of a thermal power plant boiler in this application embodiment is as follows: When the boiler body 4 is in use, coal is burned in the coal combustion zone. The slag produced by coal combustion falls into the slag zone through the filter holes 411 on the baffle 41. When the slag in the slag zone accumulates to a certain amount, the first cylinder is opened to drive the first cover 44 to slide upward, so that the first discharge port 42 is opened. The slag in the slag zone enters the cooling chamber 5 through the guide pipe 43 for cooling. The coal ash and soot in the slag are screened by the screen plate 57. The fan 56 blows air into the cooling chamber 5 to accelerate the cooling of the slag in the cooling chamber 5. The dust collector 25 and the dust collection pipe 55 suck most of the soot in the slag into the dust collection box 24. When the dust collector 25 stops working, the baffle 27 is driven to slide by the servo cylinder 28, so that the connection port 26 is opened. The soot in the dust collection box 24 enters the slag box 2 through the connection port 26.

[0055] After the slag in the cooling chamber 5 has cooled, the second motor drives the worm gear 531 to rotate. The worm gear 531 drives the worm wheel 521, which in turn drives the second cover 52 to rotate, causing the second discharge port 51 to open. The slag in the cooling chamber 5 falls onto the conveyor belt 3 and is then transported to the slag box 2 for centralized processing, thus cleaning the slag inside the boiler body 4. While cleaning the slag inside the boiler body 4, the boiler body 4 can continue to operate, thereby greatly reducing the impact of slag cleaning on the working efficiency of the boiler body 4.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A boiler ash handling structure of a thermal power plant, comprising a frame (1) and a boiler body (4) fixedly arranged on the frame (1), characterized in that: The boiler body (4) is fixedly provided with a partition plate (41), the upper portion of the partition plate (41) is a coal combustion area, the lower portion of the partition plate (41) is a slag area, and the partition plate (41) is provided with filter holes (411) for the slag to pass through; The bottom of the boiler body (4) is fixedly provided with a cooling bin (5), the bottom of the slag area is provided with a first discharging opening (42), the first discharging opening (42) is communicated with a material guide pipe (43), the material guide pipe (43) is communicated with the cooling bin (5), and the slag area is provided with a first sealing assembly for closing the first discharging opening (42); The cooling bin (5) is provided with a second discharging opening (51), the cooling bin (5) is provided with a second sealing assembly for closing the second discharging opening (51), the bottom of the cooling bin (5) is provided with a conveying belt (3), and the conveying belt (3) is used for conveying the slag into the slag box (2); The first sealing assembly comprises a first cover (44) and a first driving member (45), the first cover (44) is slidably arranged in the slag area in the vertical direction, the first cover (44) is matched with the first discharging opening (42), the first driving member (45) is used for driving the first cover (44) to slide, and the first cover (44) is embedded with a heat insulation plate (441); The first discharging opening (42) is rotatably provided with a rotating frame (47), the rotating frame (47) is fixedly provided with a tamping rod (471), the length direction of the tamping rod (471) is vertical, the tamping rod (471) is eccentrically arranged with the rotating shaft of the rotating frame (47), the tamping rod (471) is slidably provided with an extension rod (472) along the length direction of the tamping rod (471), the first cover (44) is rotatably provided with a rotating disc (442), the extension rod (472) is fixedly connected with the rotating disc (442), and the first discharging opening (42) is provided with a first driving source (48) for driving the rotating frame (47) to rotate.

2. The ash handling structure of a thermal power plant boiler according to claim 1, characterized in that: The second sealing assembly comprises a second cover (52) and a second driving source (53), the second cover (52) is rotatably arranged on the bottom wall of the cooling bin (5), the second cover (52) is matched with the second discharging opening (51), and the second driving source (53) is used for driving the second cover (52) to rotate.

3. The ash handling structure of a thermal power plant boiler according to claim 1, characterized in that: The cooling bin (5) is communicated with a blowing pipeline (54) and a dust suction pipeline (55), the blowing pipeline (54) is connected with a fan (56) for blowing air into the cooling bin (5), the dust suction pipeline (55) is communicated with the slag box (2), and the dust suction pipeline (55) is provided with a dust suction machine (25) for sucking the ash in the cooling bin (5) into the slag box (2).

4. The ash handling structure of a thermal power plant boiler according to claim 3, characterized in that: A screen disc (57) is hinged in the cooling bin (5), the screen disc (57) is used for filtering coal cinder in cinder, the screen disc (57) is matched with the cooling bin (5), a driving assembly for driving the screen disc (57) to deflect is arranged in the cooling bin (5), the communication end of the material guide pipe (43) and the air supply pipe (54) with the cooling bin (5) is above the screen disc (57), and the communication end of the dust suction pipe (55) with the cooling bin (5) is below the screen disc (57).

5. A thermal power plant ash handling structure according to claim 4, characterized in that: The driving assembly comprises a support frame (6) and a second driving member (58), the support frame (6) is slidably arranged in the cooling bin (5) along the vertical direction, and the second driving member (58) is used for driving the support frame (6) to slide, a connecting block (64) is slidably arranged on the support frame (6) along the direction perpendicular to the rotating shaft of the screen disc (57), and the screen disc (57) is hinged with the connecting block (64).

6. A thermal power plant ash handling structure according to claim 5, characterized in that: The support frame (6) comprises a sliding frame (61) and a buffer frame (62), the second driving member (58) is used for driving the sliding frame (61) to slide, the buffer frame (62) is slidably arranged on the sliding frame (61) along the vertical direction, an elastic member (63) for driving the buffer frame (62) to slide away from the sliding frame (61) is arranged on the sliding frame (61), the connecting block (64) is slidably arranged on the buffer frame (62), and a vibrating assembly (7) for driving the screen disc (57) to vibrate is arranged in the cooling bin (5).

7. A thermal power plant ash handling structure according to claim 6, characterized in that: The vibrating assembly (7) comprises a cam (71) and a third driving source (72), the cam (71) is rotatably arranged in the cooling bin (5), the third driving source (72) is used for driving the cam (71) to rotate, and a fixed rod (573) is fixedly arranged on the upper side wall of the screen disc (57), and the cam (71) is used for abutting against the fixed rod (573).

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