Ash hopper build-up detection and cleaning device
By designing a dust hopper blockage detection and cleaning device, and utilizing a filter frame and stirring rod structure, the problem of dust hopper blockage was solved, achieving automatic detection and cleaning, reducing equipment downtime and environmental pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUADIAN POWER INTERNATIONAL CORPORATION LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-24
AI Technical Summary
The ash hopper in the evaporator accumulates ash blocks, which can clog the discharge port or silo pump, requiring frequent shutdowns for cleaning, resulting in equipment damage and environmental pollution.
A device for detecting and cleaning ash blockage in an ash hopper was designed, comprising a filter frame, a left stirring rod, and a right stirring rod. The filter frame filters large ash blocks, while the left and right stirring rods agitate the large ash blocks, turning them into smaller ash blocks and clearing the blockage.
It effectively prevents large ash blocks from entering the feed pipe, reduces equipment downtime, avoids equipment damage and environmental pollution, and enables automatic detection and cleaning of ash hopper blockage.
Smart Images
Figure CN224541878U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a device for detecting and cleaning ash accumulation and blockage in ash hoppers. Background Technology
[0002] Ash clumps accumulate in the evaporator ash hopper, clogging the ash hopper discharge port or the silo pump. This necessitates periodic shutdowns of the equipment to open the manhole and disassemble the silo pump for cleaning, which can easily lead to ash leakage and environmental pollution. Frequent disassembly of equipment pipelines can also damage equipment seals. This occurs an average of 2-3 times per month. Utility Model Content
[0003] The purpose of this invention is to provide a device for detecting and cleaning ash clogging in ash hoppers, in order to solve the aforementioned technical problems.
[0004] The above objectives are achieved through the following technical solutions: A device for detecting and cleaning ash blockage in an ash hopper, comprising a filter frame, a left stirring rod and a right stirring rod, wherein the two ends of the filter frame are fixed on a connecting block, the connecting block is located inside a cylinder and a spring is connected between the bottom of the connecting block and the cylinder. The left stirring rod is located on one side of the filter frame, and its end passes through the connecting block and is rotatably connected to the connecting block. The right stirring rod is located on the other side of the filter frame, and its end passes through the connecting block and is rotatably connected to the connecting block.
[0005] The aforementioned ash hopper clogging detection and cleaning device has a rubber telescopic sleeve connecting the connecting block and the insert cylinder.
[0006] The aforementioned ash hopper clogging detection and cleaning device has two vertically arranged fixing rods fixed inside the insert, and the fixing rods pass through the round holes of the connecting block.
[0007] The aforementioned ash hopper clogging detection and cleaning device includes a left stirring rod comprising a left longitudinal rod, on which multiple left transverse rods are fixed, and at each end of the left longitudinal rod are a left retaining ring and a left square sleeve, respectively.
[0008] The aforementioned ash hopper clogging detection and cleaning device includes a right stirring rod comprising a right longitudinal rod, on which multiple right horizontal rods are fixed, and at each end of the right longitudinal rod are a right retaining ring and a right square sleeve, respectively. Beneficial effects
[0009] 1. This utility model can effectively filter the dust passing through the ash hopper by setting up a ash filter rack, which can prevent large ash pieces from entering the discharge pipe and clogging the hopper pump.
[0010] 2. By setting up a left and right stirring rod, when large ash blocks are blocked on the ash filter frame and gradually clog the ash hopper, the overall height of the ash filter frame will decrease due to the pressure of the ash blocks, causing its springs to compress. This clearly shows that the ash hopper is clogged. Then, the left and right stirring rods can be driven to stir the large ash blocks, breaking them into smaller ash blocks, allowing them to pass through the ash filter frame and clearing the blockage. Attached Figure Description
[0011] Figure 1 This is a top view of the present invention; Figure 2 This is the front view of the present invention; Figure 3 for Figure 1 Enlarged view of part AA; Figure 4 for Figure 2 Enlarged view of the BB section; Figure 5 for Figure 2 Enlarged view of part C; Figure 6 for Figure 4 Enlarged view of part D; Figure 7 This is a schematic diagram of the filter frame structure; Figure 8 This is a schematic diagram of the left stirring rod; Figure 9 This is a schematic diagram of the right stirring rod; Figure 10 This is a schematic diagram of the structure during the unblocking process; The components are: 1. Rubber telescopic sleeve; 2. Left stirring rod; 3. Ash hopper; 4. Ash filter frame; 5. Right stirring rod; 6. Insert cylinder; 7. Insert rod; 8. Connecting plate; 9. Connecting block; 10. Fixing rod; 11. Spring; 12. Left square sleeve; 13. Left retaining ring; 14. End rod; 15. Serpentine rod; 16. Left horizontal bar; 17. Left vertical bar; 18. Right horizontal bar; 19. Right vertical bar; 20. Ash block; 21. Right retaining ring; 22. Right square sleeve; 23. Material discharge pipe. Detailed Implementation
[0012] Reference Figures 1-9 A dust collector clogging detection and cleaning device comprises a dust filter frame 4, a left stirring rod 2 and a right stirring rod 5. The dust filter frame is fixed at both ends to a connecting block 9. The dust filter frame includes a serpentine rod 15, and end rods 14 are welded to both ends of the serpentine rod. During installation, the end rods are inserted into the slots of the connecting block and welded to fix them, thereby fixing the connecting block and the dust filter frame. The connecting block is located inside a tube 6 and a spring 11 is connected between the bottom of the connecting block and the tube. The tube is a square ring tube. The left stirring rod is located on one side of the filter frame, and its end passes through the connecting block and is rotatably connected to the connecting block. The right stirring rod is located on the other side of the filter frame, and its end passes through the connecting block and is rotatably connected to the connecting block.
[0013] When in use, the ash hopper 3 has openings on two opposite sides, and inserts are welded to the openings. The two connecting blocks are located in the inserts on the corresponding sides. During normal ash discharge, the dust will fall into the discharge pipe after passing through the filter ash frame. When large ash blocks are blocked on the filter ash frame and gradually clog the ash hopper, the overall height of the filter ash frame will drop after being compressed by the ash blocks, causing its spring to compress. This clearly shows that the ash hopper is clogged. Then, rotating the left and right stirring rods can stir the large ash blocks, breaking them into smaller ash blocks, allowing them to pass through the filter ash frame and clearing the blockage.
[0014] The aforementioned ash hopper clogging detection and cleaning device includes a rubber telescopic sleeve 1 connecting the connecting block and the insert cylinder. This rubber telescopic sleeve is used to ensure a seal between the connecting block and the insert cylinder to prevent ash leakage.
[0015] The aforementioned ash hopper blockage detection and cleaning device has two vertically arranged fixing rods 10 fixed inside the insert. The fixing rods pass through the round holes of the connecting block, and these fixing rods are used to ensure that the connecting block moves vertically downward after being pressed down by the ash block.
[0016] The aforementioned ash hopper clogging detection and cleaning device includes a left stirring rod comprising a left longitudinal rod 17, on which multiple left transverse rods 16 are fixed, and at both ends of the left longitudinal rod are respectively fixed a left retaining ring 13 and a left square sleeve 12.
[0017] The aforementioned ash hopper clogging detection and cleaning device includes a right stirring rod comprising a right longitudinal rod 19, on which multiple right transverse rods 18 are fixed, and at both ends of the right longitudinal rod are respectively fixed a right retaining ring 21 and a right square sleeve 22.
[0018] Working principle: Refer to Figure 10The connecting block has a connecting plate 8 on its external part. The insert rod 7 passes through the round holes of the connecting plate, the left longitudinal rod, and the right longitudinal rod. This can limit the left and right stirring rods and prevent them from rotating on their own. During normal ash discharge, the dust will fall into the discharge pipe after passing through the ash filter frame. When large ash blocks are blocked on the ash filter frame and gradually clog the ash hopper, the overall height of the ash filter frame will drop due to the pressure of the ash blocks, causing its spring to compress. This allows external personnel to see that the height of the connecting block has dropped, indicating that the ash hopper is clogged. Then, the insert rod is pulled out, the left sleeve of the left stirring rod is held with the left hand, and the right sleeve of the right stirring rod is held with the right hand. The left stirring rod is rotated clockwise, and the right stirring rod is rotated counterclockwise. This allows the left and right stirring rods to agitate the compressed ash blocks and break them into smaller ash blocks. The broken ash blocks can then pass smoothly through the ash filter frame and enter the discharge pipe, clearing the blockage. After clearing, the overall height rises back to the initial position under the action of the spring.
Claims
1. A device for detecting and cleaning ash clogging in an ash hopper, characterized in that: Its components include a filter frame, a left stirring rod, and a right stirring rod. The filter frame is fixed at both ends to a connecting block, which is located inside a tube and is connected to the tube by a spring at its bottom. The left stirring rod is located on one side of the filter frame, and its end passes through the connecting block and is rotatably connected to it. The right stirring rod is located on the other side of the filter frame, and its end passes through the connecting block and is rotatably connected to it.
2. The ash hopper blockage detection and cleaning device according to claim 1, characterized in that: A rubber telescopic sleeve connects the connecting block and the insert.
3. The ash hopper blockage detection and cleaning device according to claim 2, characterized in that: The insert has two vertically arranged fixing rods fixed inside, and the fixing rods pass through the round holes of the connecting block.
4. The ash hopper blockage detection and cleaning device according to claim 3, characterized in that: The left stirring rod includes a left longitudinal rod, on which multiple left transverse rods are fixed. A left retaining ring and a left square sleeve are respectively fixed at both ends of the left longitudinal rod.
5. The ash hopper blockage detection and cleaning device according to claim 4, characterized in that: The right stirring rod includes a right longitudinal rod, on which multiple right transverse rods are fixed. A right retaining ring and a right square sleeve are respectively fixed at both ends of the right longitudinal rod.