Power plant boiler ash cleaning device

Abstract

The utility model discloses a power plant boiler ash cleaning device, and relates to the technical field of power plant boilers. The boiler comprises a boiler body, the top of the boiler body is fixedly connected with a barrel in a penetrating mode, a feeding window is formed in one side of the boiler body, and protrusions are symmetrically and fixedly arranged on the inner side wall, below the feeding window, of the boiler body. The driving hydraulic cylinder drives the movable supporting frame to move downwards, at the moment, the two waste plates can turn downwards around the hinged shafts where the waste plates are located under the action of the gravity of the waste plates, and therefore stove ash and large remaining waste on the waste plates can smoothly fall into the stove ash collecting drawer along the waste plates to be automatically collected. According to the boiler ash removal device, the waste plate can achieve effective ash removal, through the arranged impact rod and the impact ball head, in the downward overturning process of the waste plate, through the impact between the waste plate and the impact ball head, boiler ash on the waste plate can be better vibrated off, and the boiler ash removal effect is further improved.

Description

Technical Field

[0001] This utility model belongs to the field of power plant boiler technology, and in particular relates to a power plant boiler ash cleaning device. Background Technology

[0002] Power plant boilers are key equipment in power plants, used to convert the heat energy generated by fuel combustion into steam, which then drives a steam turbine to generate electricity. Power plant boilers typically use thermal power generation, that is, burning fuel to produce high-temperature, high-pressure combustion gases, which are then transferred to water to heat the water into high-temperature, high-pressure steam. Fly ash is generated during the boiler combustion power generation process. Fly ash is usually treated through solidification and landfill. During the fly ash solidification process, leachate is generated, and the final product water from the leachate can be reused. The dried sludge can reach a moisture content of approximately 40%. A search revealed that patent application number 202420370910.8 discloses a power plant boiler ash cleaning device. The technical solution includes: a boiler and a collection box. A heating chamber is installed on the top of the boiler. An exhaust pipe is installed on the top of the boiler. A support ring is installed on the top of the boiler. A rotating ring is installed at the bottom of the support ring via a steel ball. A ceramic scraper is installed at the bottom of the rotating ring. A drive motor is installed on the top plate of the boiler near the exhaust pipe. A central shaft is installed on the inner surface of the exhaust pipe near the bottom via a connecting frame.

[0003] However, during actual use, the applicant found that when cleaning the ash on the waste plate, the waste plate was driven to vibrate up and down by the unloading motor, and the ash on the waste plate was cleaned by vibration. This method is not conducive to cleaning the larger volume of waste material remaining in the ash. In view of this, we propose a power plant boiler ash cleaning device. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a boiler ash cleaning device for power plants, comprising a boiler body, a cylindrical body fixedly connected to the top of the boiler body, a feeding window on one side of the boiler body, symmetrical protrusions fixedly arranged on the inner wall of the boiler body below the feeding window, a waste plate rotatably connected to the protrusions via a hinge shaft, an impact rod fixedly arranged on the inner wall of the protrusion below the waste plate, the front end of the hinge shaft extending to the outside of the boiler body and sleeved with a connecting arm, a movable support frame movably arranged on the outer wall of the boiler body below the connecting arm, a hydraulic cylinder fixedly installed on the front side of the boiler body above the movable support frame, the telescopic end of the hydraulic cylinder being fixedly connected to the middle of the movable support frame, an ash collection drawer movably arranged in the boiler body below the waste plate, a roller shaft rotatably connected to the inner wall of the boiler body below the ash collection drawer via a bearing, and an exhaust pipe fixedly connected through the top of the boiler body near the cylindrical body.

[0006] Preferably, a number of rollers are arranged side by side at equal intervals inside the boiler body, and the rollers roll along the bottom of the ash collection tray.

[0007] Preferably, a plurality of impact rods are provided at equal intervals along the front-back direction on the inner sidewall of the protrusion, and an impact ball head is fixedly provided at the upper end of the impact rod.

[0008] Preferably, the hinge shaft is rotatably connected to the protrusion via a bearing, the waste plate is sleeved and fixed in the middle of the hinge shaft, and the waste plate is uniformly provided with through grooves.

[0009] Preferably, guide sleeves are symmetrically fixedly connected to the front side of the boiler body, and the two ends of the movable support frame respectively movably pass through the two guide sleeves.

[0010] Preferably, an inspection window is provided on the other side of the boiler body above the protrusion, and an inspection door is hinged to the outer wall of the boiler body outside the inspection window.

[0011] This utility model has the following beneficial effects:

[0012] This utility model discloses a boiler ash cleaning device for power plants. A hydraulic cylinder drives a movable support frame downwards, causing two waste plates to flip downwards around their hinge axis under their own gravity. This allows the ash and larger residual waste on the waste plates to fall smoothly into the ash collection drawer for automatic collection, effectively cleaning the waste plates. The impact rods and impact balls further enhance the cleaning effect by colliding with the impact balls during the downward flipping process, dislodging the ash from the waste plates and improving the overall boiler ash cleaning efficiency. The rollers convert the sliding friction between the ash collection drawer and the boiler body into rolling friction, reducing the moving resistance of the ash collection drawer and allowing it to be moved more easily from the bottom of the boiler body. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a left-side structural schematic diagram of a power plant boiler ash cleaning device according to the present invention;

[0015] Figure 2 This is a right-side structural schematic diagram of a power plant boiler ash cleaning device according to the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of a power plant boiler ash cleaning device according to the present invention.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Boiler body; 2. Shell; 3. Feed window; 4. Hinge shaft; 5. Connecting arm; 6. Movable support frame; 7. Guide sleeve; 8. Hydraulic cylinder; 9. Exhaust pipe; 10. Inspection door; 11. Ash collection drawer; 12. Waste plate; 13. Protrusion; 14. Roller; 15. Impact rod; 151. Impact ball head; 16. Inspection window. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 As shown, this utility model provides a technical solution:

[0021] A boiler ash cleaning device for power plants includes a boiler body 1. A cylinder 2 is fixedly connected to the top of the boiler body 1. A feed window 3 is provided on one side of the boiler body 1. Protrusions 13 are symmetrically fixed on the inner wall of the boiler body 1 below the feed window 3. A waste plate 12 is rotatably connected to the protrusion 13 via a hinge shaft 4. The hinge shaft 4 is rotatably connected to the protrusion 13 via a bearing. The waste plate 12 is sleeved and fixed in the middle of the hinge shaft 4, and through grooves are evenly provided on the waste plate 12. An impact rod 15 is fixedly provided on the inner wall of the protrusion 13 below the waste plate 12. The front end of the hinge shaft 4 extends to the outside of the boiler body 1 and is sleeved and fixedly connected to a connecting arm 5. A movable part is movably provided on the outer wall of the boiler body 1 below the connecting arm 5. The support frame 6 and the boiler body 1 are symmetrically and fixedly connected to guide sleeves 7. The two ends of the movable support frame 6 respectively pass through the two guide sleeves 7. A hydraulic cylinder 8 is fixedly installed on the front side of the boiler body 1 above the movable support frame 6. The hydraulic cylinder 8 is a commercially available technology and is controlled by an external controller. The structure and control method of the controller will not be described in detail here. The telescopic end of the hydraulic cylinder 8 is fixedly connected to the middle of the movable support frame 6. An ash collection tray 11 is movably installed in the boiler body 1 below the waste plate 12. By driving the hydraulic cylinder 8, the movable support frame 6 is moved downward. At this time, the two waste plates 12 can rotate downward around their hinge axis 4 under their own gravity, so that the ash on the waste plate and Larger waste materials fall smoothly along the waste plate into the ash collection drawer for automatic collection, enabling effective ash removal from the waste plate 12. An exhaust pipe 9 is fixedly connected through the top of the boiler body 1 near the cylinder 2. An inspection window 16 is located on the other side of the boiler body 1 above the protrusion 13. An inspection door 10 is hinged to the outer wall of the boiler body 1 outside the inspection window 16. During use, fuel can be fed from the feed window 3 onto the top of the waste plate 12 and ignited. The combustion of the fuel heats the bottom of the cylinder 2, causing the water inside the cylinder 2 to evaporate. The exhaust gas generated during combustion can be discharged from the exhaust pipe 9. When it is necessary to clean the ash on the top of the waste plate 12, the hydraulic cylinder can be driven... 8 drives the movable support 6 to move downward. At this time, the two waste plates 12 can flip downward around their hinge shaft 4 under their own gravity, so that the furnace ash on the waste plates 12 can fall smoothly into the furnace ash collection drawer 11 for automatic collection. By driving the hydraulic cylinder 8 to drive the movable support 6 to move upward, the connecting arm 5 and the hinge shaft 4 can be driven to rotate upward together, so that the waste plates 12 can be rotated upward through the hinge shaft 4, and the waste plates 12 can be reset. By opening the inspection door 10, the bottom of the cylinder 2 can be cleaned from the inspection window 16. By pulling the furnace ash collection drawer 11 out from the bottom of the boiler body 1, the furnace ash collected inside the furnace ash collection drawer 11 can be cleaned.

[0022] A roller 14 is rotatably connected to the inner wall of the boiler body 1 below the ash collection drawer 11 via a bearing. Several rollers 14 are arranged side by side at equal intervals inside the boiler body 1. The rollers 14 roll along the bottom of the ash collection drawer 11. The arrangement of the rollers 14 can convert the sliding friction between the ash collection drawer 11 and the boiler body 1 into rolling friction, reducing the moving resistance of the ash collection drawer 11 and making it easier for the ash collection drawer 11 to move out from the bottom of the boiler body 1. Several impact rods 15 are arranged at equal intervals along the front-back direction on the inner wall of the protrusion 13. An impact ball head 151 is fixedly installed at the upper end of the impact rod 15. Through the arrangement of the impact rods 15 and the impact ball head 151, the ash collection drawer 11 can be moved out from the bottom of the boiler body 1. The head 151 causes the waste plate 12 to flip downwards, and through the collision with the impact ball head 151, the furnace ash on the waste plate 12 can be shaken off better, further improving the cleaning effect of boiler furnace ash. When the bottom of the waste plate 12 collides with the impact ball head 151 during the downward flipping of the waste plate 12 around the hinge shaft 4, the waste plate 12 can vibrate, thereby better shaking off the furnace ash attached to the waste plate 12. During the process of pulling out the furnace ash collection tray 11, the roller shaft 14 can roll along the bottom of the furnace ash collection tray 11, making it easier for personnel to pull the furnace ash collection tray 11 out from the bottom of the boiler body 1.

[0023] Working principle: During use, fuel can be fed into the top of the waste plate 12 through the feed window 3 and ignited. The combustion of the fuel heats the bottom of the cylinder 2, causing the water inside the cylinder 2 to evaporate. The exhaust gas generated during combustion can be discharged from the exhaust pipe 9. When it is necessary to clean the ash on the top of the waste plate 12, the movable support 6 can be moved downward by driving the hydraulic cylinder 8. At this time, the two waste plates 12 can flip downward around their hinge axis 4 under their own gravity, so that the ash on the waste plate 12 can fall smoothly into the ash collection drawer 11 for automatic collection. During the downward flipping of the waste plate 12 around the hinge axis 4, when the bottom of the waste plate 12 collides with the impact ball head 151... When the waste plate 12 vibrates, it can better shake off the ash attached to the waste plate 12. By driving the hydraulic cylinder 8 to move the movable support 6 upward, it can drive the connecting arm 5 and the hinge shaft 4 to rotate upward together. Thus, the waste plate 12 can be rotated upward through the hinge shaft 4, realizing the reset of the waste plate 12. By opening the maintenance door 10, the bottom of the cylinder 2 can be cleaned from the maintenance window 16. By pulling the ash collection drawer 11 out from the bottom of the boiler body 1, the ash collected inside the ash collection drawer 11 can be cleaned. During the process of pulling out the ash collection drawer 11, the roller 14 can roll along the bottom of the ash collection drawer 11, making it easier for personnel to pull the ash collection drawer 11 out from the bottom of the boiler body 1.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications to the technical solutions described in the foregoing embodiments or equivalent substitutions of some of the technical features shall fall within the protection scope of the present utility model.

Claims

1. A power plant boiler ash cleaning device comprising a boiler body (1), characterized in that: The top of the boiler body (1) is fixedly connected with a cylinder (2) penetratingly, one side of the boiler body (1) is provided with a feeding window (3), the inner side wall of the boiler body (1) below the feeding window (3) is fixedly provided with a protrusion (13) symmetrically, a waste board (12) is rotatably connected to the protrusion (13) through a hinge shaft (4), the inner wall of the protrusion (13) below the waste board (12) is fixedly provided with a striking rod (15), the front end of the hinge shaft (4) extends to the outside of the boiler body (1) and is fixedly sleeved with a connecting arm (5), the outer wall of the boiler body (1) below the connecting arm (5) is movably provided with a movable support frame (6), the front side of the boiler body (1) above the movable support frame (6) is fixedly provided with a hydraulic cylinder (8), the telescopic end of the hydraulic cylinder (8) is fixedly connected with the middle part of the movable support frame (6), the boiler body (1) below the waste board (12) is movably provided with an ash collecting drawer (11), the inner wall of the boiler body (1) below the ash collecting drawer (11) is rotatably connected with a roller shaft (14) through a bearing, and the top of the boiler body (1) near the cylinder (2) is fixedly connected with an exhaust pipe (9) penetratingly.

2. A power plant boiler ash cleaning device according to claim 1, characterized in that The roller shafts (14) inside the boiler body (1) are arranged side by side at equal intervals, and the roller shafts (14) roll along the bottom of the ash collecting drawer (11).

3. A power plant boiler ash cleaning device according to claim 1, characterized in that, The striking rods (15) on the inner side wall of the protrusion (13) are arranged at equal intervals in the front-rear direction, and the upper ends of the striking rods (15) are fixedly provided with striking ball heads (151).

4. A power plant boiler ash cleaning device according to claim 1, characterized in that, The hinge shaft (4) is rotatably connected with the protrusion (13) through a bearing, the waste board (12) is fixedly sleeved in the middle part of the hinge shaft (4), and through grooves are uniformly formed in the waste board (12).

5. A power plant boiler ash cleaning device according to claim 1, characterized in that, The front side of the boiler body (1) is fixedly connected with guide sleeves (7) symmetrically, and the two ends of the movable support frame (6) movably penetrate through the two guide sleeves (7) respectively.

6. A power plant boiler ash cleaning device according to claim 1, characterized in that The other side of the boiler body (1) above the protrusion (13) is provided with an inspection window (16), and the outer wall of the boiler body (1) outside the inspection window (16) is hingedly provided with an inspection door (10).

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