Ash cooler for collecting and treating combustion coal ash of thermal power plant

Abstract

The invention discloses a thermal power plant combustion coal ash collection and treatment ash cooler, and relates to the technical field of ash coolers, the thermal power plant combustion coal ash collection and treatment ash cooler comprises a bottom plate, a round rod is rotatably installed in a cylinder, and the round rod is provided with an eccentric unit used for changing the center-of-gravity position of the cylinder; a power assembly used for driving the round rod to rotate and a buffering assembly used for preventing the cylinder from excessively moving are arranged on one side of the cylinder, and a partition assembly used for preventing ash from floating into the air is arranged in the feeding hopper. The power assembly drives the round rod to rotate, the round rod drives the eccentric unit to rotate, the cylinder can rapidly move up and down through rapid rotation of the eccentric unit, then coal ash in the cylinder is continuously thrown up, hot air in the coal ash can be released as much as possible and makes full contact with air, and heat exchange is achieved; and meanwhile, cold water is continuously introduced into the water pipe and the round rod, heat exchange is continuously carried out between the cold water and the interior of the cylinder, and the temperature reduction of the coal cinder is accelerated.

Description

Technical Field

[0001] This invention relates to the field of ash cooler technology, and more particularly to an ash cooler for collecting and treating coal ash from thermal power plants. Background Technology

[0002] A boiler ash cooler, also known as a drum-type boiler ash cooler or a combined air-water boiler ash cooler, is a device that uses indirect or direct heat exchange to cool, collect, and facilitate the subsequent transportation and processing of high-temperature coal ash discharged from boilers (typically reaching 800-1000°C). Its core functions are to ensure system safety, recover heat, protect the environment, and facilitate transportation.

[0003] In the existing technology, the ash cooler uses rotating spiral blades to push and cool the ash residue. The cooling effect of the ash residue is limited by the movement stroke. The greater the movement stroke of the ash residue in the ash cooler, the larger the size of the ash cooler will be, which will occupy a large amount of space and make it difficult to meet people's needs. Summary of the Invention

[0004] The purpose of this invention is to provide a cold ash collector for collecting and processing coal ash from thermal power plants, in order to solve the problem of the large size of the cold ash collector.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A cold ash collector for collecting and treating coal ash from a thermal power plant includes a base plate with a fixed plate fixedly installed on it. A cylinder is slidably installed between a pair of fixed plates. A cylindrical rod is rotatably installed inside the cylinder. An eccentric unit for changing the center of gravity of the cylinder is provided on the cylindrical rod. A counterweight is fixedly installed on the cylindrical rod within the eccentric unit. A power component for driving the cylindrical rod to rotate and a buffer component for preventing excessive movement of the cylinder are provided on one side of the cylinder. Water pipes are rotatably installed at both ends of the cylindrical rod. The cylindrical rod is hollow in the middle and connected to the water pipes. A feeding hopper is fixedly installed on the cylinder. A baffle for preventing ash from drifting into the air is provided inside the feeding hopper. A discharging hopper is fixedly installed on the cylinder. A baffle for opening and closing is detachably installed inside the discharging hopper.

[0006] As a further description of the above technical solution: the power assembly includes a support plate slidably mounted on a fixed plate, and the support plate is rotatably connected to a round rod. A roller is rotatably mounted on the support plate, and a belt is sleeved on the roller. An mounting plate is fixedly mounted on the support plate, and a motor is fixedly mounted on the mounting plate. The output shaft of the motor is fixedly connected to one roller, and the other roller is fixedly connected to the round rod. The round rod passes through the roller and is connected to a water pipe.

[0007] As a further description of the above technical solution: the buffer assembly includes a slider that is slidably installed in the fixed plate, and the slider is rotatably connected to the round rod. A spring that is fixedly connected to the fixed plate is fixedly installed on the slider.

[0008] As a further description of the above technical solution: the water pipe is foldable.

[0009] As a further description of the above technical solution: an extension plate is fixedly installed on the counterweight block.

[0010] As a further description of the above technical solution: the partition assembly includes a filter plate that is magnetically mounted in the hopper, and a handle is fixedly mounted on the filter plate.

[0011] As a further description of the above technical solution: a fixed frame is fixedly installed on the cylinder, a connecting frame is slidably installed on the fixed frame, a sliding groove is provided on the fixed plate, the connecting frame is slidably connected to the sliding groove, and a striking plate is rotatably installed on the connecting frame.

[0012] As a further description of the above technical solution: a rubber pad is fixedly installed on the striking plate.

[0013] As a further description of the above technical solution: a blower is fixedly installed on the cylinder, and an air duct fixedly connected to the cylinder is fixedly installed at the air outlet end of the blower, with the air outlet end of the air duct corresponding to the upper end of the feeding hopper.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The power unit drives the round rod to rotate, which in turn drives the eccentric unit to rotate. The eccentric unit causes the center of gravity inside the cylinder to constantly change position. The rapid rotation of the eccentric unit causes the cylinder to move up and down rapidly, which in turn causes the coal ash inside the cylinder to be constantly thrown up, allowing the heat in the coal ash to be released as much as possible, fully contacting the air to achieve heat exchange and accelerate the temperature drop of the coal ash. At the same time, cold water is continuously circulated into the water pipe and the round rod. The cold water continuously exchanges heat with the inside of the cylinder, accelerating the temperature drop of the coal ash. This method abandons the traditional method of using a rotating spiral to push the ash residue for cooling. The cooling effect is not limited by the movement of the ash residue, saving space. 2. During the rotation of the counterweight, the counterweight drives the extension plate to continuously lift the coal ash inside the cylinder, ensuring that the coal ash moves fully inside the cylinder as much as possible, preventing heat accumulation in the middle of the coal ash, and ensuring that the overall cooling effect of the coal ash is consistent and good. 3. During the up-and-down movement of the cylinder, the cylinder drives the connecting frame to move up and down through the fixed frame. Due to the restriction of the connecting frame by the chute, and the fact that the chute will slowly move towards the middle of the fixed plate from bottom to top, the connecting frame moves up and down and left and right at the same time. This causes the connecting frame to drive the striking plate to repeatedly strike the outer wall of the feeding hopper, which will generate vibration on the feeding hopper. The vibration is transmitted to the filter plate. During the cooling process, a large amount of coal ash will accumulate on the filter plate. The coal ash accumulated on the filter plate is shaken off to ensure the passability of the filter plate, prevent the filter plate from becoming blocked, and ensure the heat dissipation effect of the device. 4. The blower blows air into the duct. The high-speed air flows rapidly from above the hopper along the air outlet of the duct, which accelerates the airflow above the hopper and forms a negative pressure zone (relative to the inside of the cylinder). This allows the hot air inside the cylinder to be quickly drawn into the air along the hopper, accelerating the dissipation of heat inside the cylinder and improving the cooling efficiency. Attached Figure Description

[0015] Figure 1 A schematic diagram of the front view structure provided according to an embodiment of the present invention is shown; Figure 2 A schematic cross-sectional view of a cylindrical structure provided according to an embodiment of the present invention is shown; Figure 3 A schematic diagram showing the positional relationship between the support plate and the fixing plate according to an embodiment of the present invention is shown; Figure 4 A schematic diagram showing the connection relationship between the fixing frame and the connecting frame provided according to an embodiment of the present invention is shown.

[0016] Legend: 1. Base plate; 11. Fixing plate; 12. Cylinder; 13. Round rod; 14. Water pipe; 15. Feeding hopper; 16. Discharging hopper; 2. Bearing plate; 21. Roller; 22. Belt; 23. Mounting plate; 24. Motor; 3. Counterweight; 31. Extension plate; 4. Sliding block; 41. Spring; 5. Filter plate; 51. Handle; 6. Fixing frame; 61. Connecting frame; 62. Slide groove; 63. Striking plate; 7. Rubber pad; 8. Blower; 81. Air duct. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example: This example provides a cold ash collector for collecting and treating coal ash from a thermal power plant. See [link to example]. Figure 1 - Figure 4 Specifically, it includes a base plate 1, on which a fixed plate 11 is fixedly installed. A cylinder 12 is slidably installed between a pair of fixed plates 11. A cylindrical rod 13 is rotatably installed inside the cylinder 12. An eccentric unit for changing the center of gravity of the cylinder 12 is provided on the cylindrical rod 13. A counterweight 3 is fixedly installed on the cylindrical rod 13 inside the eccentric unit. A power component for driving the cylindrical rod 13 to rotate and a buffer component for preventing the cylinder 12 from moving excessively are provided on one side of the cylinder 12. Water pipes 14 are rotatably installed at both ends of the cylindrical rod 13. The cylindrical rod 13 is hollow in the middle and connected to the water pipes 14. A feeding hopper 15 is fixedly installed on the cylinder 12. A partition component for preventing ash and slag from drifting into the air is provided inside the feeding hopper 15. A discharging hopper 16 is fixedly installed on the cylinder 12. A baffle for opening and closing is detachably installed inside the discharging hopper 16. The coal ash is placed inside the cylinder 12, and the partition component covers the feeding hopper 15. The power component drives the circular rod 13 to rotate, and the circular rod 13 drives the eccentric unit to rotate. The eccentric unit causes the center of gravity inside the cylinder 12 to keep changing. The rapid rotation of the eccentric unit causes the cylinder 12 to move up and down rapidly, which causes the coal ash inside the cylinder 12 to be continuously thrown up, allowing the hot air in the coal ash to be released as much as possible, fully contacting the air to achieve heat exchange and accelerate the temperature drop of the coal ash. The buffer component buffers the violent movement of the cylinder 12 to prevent the cylinder 12 from hitting and damaging the fixed plate 11 due to the large inertia. During the process of releasing hot air, some coal ash will move upward with the hot air. The partition component blocks the coal ash to prevent it from drifting into the air and causing pollution. At the same time, cold water is continuously circulated into the water pipe 14 and the round rod 13, and the cold water continuously exchanges heat with the inside of the cylinder 12, accelerating the temperature drop of the coal slag. After the temperature of the coal slag inside the cylinder 12 drops to the predetermined range, the device stops working, the baffle in the hopper 16 is opened, and the coal slag is poured out for further processing. It should be noted that the inner wall of cylinder 12 can be coated with an anti-stick coating, which prevents coal slag from accumulating on the inner wall of cylinder 12, greatly reducing the number of times the inner wall of the device needs to be cleaned, and greatly increasing the convenience of subsequent use of the device. The power assembly includes a support plate 2 slidably mounted on a fixed plate 11, and the support plate 2 is rotatably connected to a round rod 13. A roller 21 is rotatably mounted on the support plate 2, and a belt 22 is fitted on the roller 21. An mounting plate 23 is fixedly mounted on the support plate 2, and a motor 24 is fixedly mounted on the mounting plate 23. The output shaft of the motor 24 is fixedly connected to one roller 21, and the other roller 21 is fixedly connected to the round rod 13. The round rod 13 passes through the roller 21 and is connected to a water pipe 14. The buffer assembly includes a slider 4 slidably mounted in the fixed plate 11, and the slider 4 is rotatably connected to the round rod 13. A spring 41 fixedly mounted on the slider 4 and fixedly connected to the fixed plate 11 is fixedly mounted on the slider 4. The water pipe 14 is foldable. Motor 24 drives one roller 21 to rotate, which drives another roller 21 to rotate via belt 22. The roller 21 drives the round rod 13 to rotate, and the round rod 13 drives the counterweight 3 to rotate continuously, causing the center of gravity inside the cylinder 12 to keep changing. Due to the restriction of slider 4 and fixed plate 11, the cylinder 12 can only move up and down. The rapid rotation of counterweight 3 causes the cylinder 12 to move up and down rapidly, which in turn causes the coal ash inside the cylinder 12 to be continuously thrown up, allowing the heat in the coal ash to be released as much as possible, fully contacting the air to achieve heat exchange and accelerate the decrease in coal ash temperature. As the cylinder 12 contains a large amount of coal ash, the cylinder 12 and the coal ash together have a large mass, resulting in a large inertia. During the up-and-down movement of the cylinder 12, the slider 4 continuously squeezes and stretches the spring 41. The spring 41 buffers the violent movement of the cylinder 12 through its own deformation, preventing the large inertia from causing the cylinder 12 to hit and damage the fixed plate 11, thus ensuring the service life of the device. A cold water source is connected to a water pipe 14 on one side of the cylinder 12, and a hot water collection device is connected to a water pipe 14 on the other side. Cold water enters the cylinder 13 from the water pipe 14 and flows out from the other water pipe 14. During this time, the cold water fully contacts the hot air inside the cylinder 12 and exchanges heat. The cold water quickly turns into hot water, thereby cooling the temperature of the coal ash inside the cylinder 12. It should be noted that the water pipe 14 is foldable and can be adaptively adjusted as the water pipe 14 moves up and down to ensure that cold water can flow normally from the water pipe 14 through the round rod 13 for cooling. An extension plate 31 is fixedly installed on the counterweight 3; During the rotation of the counterweight 3, the counterweight 3 drives the extension plate 31 to continuously lift the coal ash inside the cylinder 12, so as to ensure that the coal ash moves fully inside the cylinder 12, and to ensure that there is no heat accumulation in the middle of the coal ash. The overall cooling effect of the coal ash is consistent and the cooling effect is good. The partition assembly includes a filter plate 5 that is magnetically mounted inside the feed hopper 15, and a handle 51 is fixedly mounted on the filter plate 5; The filter plate 5 is removed from the hopper 15 by the handle 51. Then, the coal ash that needs to be cooled is poured into the cylinder 12 through the hopper 15. The filter plate 5 is then installed in the hopper 15 by magnetic force. During the up-and-down movement of the cylinder 12, a large amount of hot air inside the cylinder 12 will be discharged out along the hopper 15, diluting the hot air inside the cylinder 12. As the coal ash inside the cylinder 12 moves continuously, a large amount of coal ash will float upward with the hot air. The filter plate 5 can filter out the coal ash, allowing only the hot air to escape, ensuring the cleanliness of the surrounding environment. After the device has been used for a long time, some coal ash will stick to the filter plate 5. The filter plate 5 can be removed by the handle 51 for cleaning. After cleaning, it can be reinstalled. The operation is convenient. It should be noted that the magnetic force used to fix the filter plate 5 in the feeding hopper 15 is relatively large. During the up and down movement of the cylinder 12, the filter plate 5 will not fall off the feeding hopper 15, thus ensuring that the coal ash in the cylinder 12 will not fall out. A fixed frame 6 is fixedly installed on the cylinder 12, a connecting frame 61 is slidably installed on the fixed frame 6, a sliding groove 62 is provided on the fixed plate 11, the connecting frame 61 is slidably connected to the sliding groove 62, and a striking plate 63 is rotatably installed on the connecting frame 61. During the up-and-down movement of the cylinder 12, the cylinder 12 drives the connecting frame 61 to move up and down through the fixed frame 6. Due to the restriction of the connecting frame 61 by the slide 62, and the slide 62 slowly moving towards the middle of the fixed plate 11 from bottom to top, the connecting frame 61 moves up and down and left and right at the same time. This causes the connecting frame 61 to drive the striking plate 63 to repeatedly strike the outer wall of the feeding hopper 15, which will generate vibration on the feeding hopper 15. The vibration is transmitted to the filter plate 5. During the cooling process, a large amount of coal ash will accumulate on the filter plate 5. Shaking off the coal ash accumulated on the filter plate 5 ensures the passability of the filter plate 5, prevents the filter plate 5 from becoming blocked, and ensures the heat dissipation effect of the device. A rubber pad 7 is fixedly installed on the striking plate 63; Rubber pad 7 prevents the striking plate 63 from directly contacting the feeding hopper 15, which would result in excessive noise during striking. This optimizes the quietness of the device's operation, improves the user experience, and facilitates the widespread adoption of the device. A blower 8 is fixedly installed on the cylinder 12. An air duct 81 is fixedly installed at the air outlet end of the blower 8 and is fixedly connected to the cylinder 12. The air outlet end of the air duct 81 corresponds to the upper end of the feeding hopper 15. Blower 8 blows air into duct 81. The high-speed air flows rapidly from above hopper 15 along the air outlet of duct 81, accelerating the airflow above hopper 15 and creating a negative pressure zone (relative to the inside of cylinder 12). This allows the hot air inside cylinder 12 to be quickly drawn into the air along hopper 15, accelerating the dissipation of heat inside cylinder 12 and improving cooling efficiency.

[0019] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cold ash collector for collecting and treating coal ash from thermal power plants, characterized in that, include: A base plate (1) is fixedly mounted on the base plate (1). A cylinder (12) is slidably mounted between a pair of fixed plates (11). A round rod (13) is rotatably mounted inside the cylinder (12). An eccentric unit for changing the center of gravity of the cylinder (12) is provided on the round rod (13). A counterweight (3) is fixedly mounted on the round rod (13) inside the eccentric unit. A power assembly for driving the round rod (13) to rotate and a counterweight for preventing rotation are provided on one side of the cylinder (12). The cylinder (12) is a buffer component for excessive movement. Water pipes (14) are rotatably installed at both ends of the cylindrical rod (13). The cylindrical rod (13) is hollow in the middle and connected to the water pipes (14). A feeding hopper (15) is fixedly installed on the cylinder (12). A partition component for preventing ash and slag from drifting into the air is provided inside the feeding hopper (15). A discharging hopper (16) is fixedly installed on the cylinder (12). A baffle for opening and closing is detachably installed inside the discharging hopper (16).

2. The ash cooler for collecting and treating coal ash from thermal power plants according to claim 1, characterized in that, The power assembly includes a support plate (2) slidably mounted on a fixed plate (11), and the support plate (2) is rotatably connected to a round rod (13). A roller (21) is rotatably mounted on the support plate (2), and a belt (22) is fitted on the roller (21). An mounting plate (23) is fixedly mounted on the support plate (2), and a motor (24) is fixedly mounted on the mounting plate (23). The output shaft of the motor (24) is fixedly connected to one roller (21), and the other roller (21) is fixedly connected to the round rod (13). The round rod (13) passes through the roller (21) and is connected to a water pipe (14).

3. The ash cooler for collecting and treating coal ash from thermal power plants according to claim 1, characterized in that, The buffer assembly includes a slider (4) that is slidably mounted in a fixed plate (11), and the slider (4) is rotatably connected to a round rod (13). A spring (41) that is fixedly connected to the fixed plate (11) is fixedly mounted on the slider (4).

4. A cold ash collector for collecting and treating coal ash from a thermal power plant according to claim 1, characterized in that, The water pipe (14) is foldable.

5. A cold ash collector for collecting and treating coal ash from a thermal power plant according to claim 1, characterized in that, An extension plate (31) is fixedly installed on the counterweight (3).

6. A cold ash collector for collecting and treating coal ash from a thermal power plant according to claim 1, characterized in that, The partition assembly includes a filter plate (5) that is magnetically mounted in the feed hopper (15), and a handle (51) is fixedly mounted on the filter plate (5).

7. A cold ash collector for collecting and treating coal ash from a thermal power plant according to claim 1, characterized in that, A fixed frame (6) is fixedly installed on the cylinder (12), a connecting frame (61) is slidably installed on the fixed frame (6), a sliding groove (62) is provided on the fixed plate (11), the connecting frame (61) is slidably connected to the sliding groove (62), and a striking plate (63) is rotatably installed on the connecting frame (61).

8. A cold ash collector for collecting and treating coal ash from a thermal power plant according to claim 7, characterized in that, A rubber pad (7) is fixedly installed on the striking plate (63).

9. A cold ash collector for collecting and treating coal ash from a thermal power plant according to claim 1, characterized in that, A blower (8) is fixedly installed on the cylinder (12). A duct (81) is fixedly connected to the cylinder (12) at the air outlet end of the blower (8). The air outlet end of the duct (81) corresponds to the upper end of the feeding hopper (15).

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