Blast cap hole coke blockage cleaning device
By designing a coke-blocking and cleaning device for fluidized bed boilers, using connecting rods, fixed seats and bent parts, efficient unblocking and cleaning of the hood eyes is achieved, solving the problems of uneven wind and local coking caused by blockage of the hood, and improving the operating efficiency of the boiler.
Patent Information
- Application Number
- CN202421301725.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-07
AI Technical Summary
During the operation of the fluidized bed boiler, the hood is prone to blockage, resulting in uneven distribution of wind, forming local coking, affecting production. Existing tools are difficult to efficiently clean the blockage of the hood eye of the hollow structure.
A hood eye coke cleaning device is designed, including a positioning groove, baffle, support and top support mechanism. Using connecting rods, fixing seats, adjustment sleeves and bent parts, multiple hood eyelets can be unblocked at the same time, and blockages that are difficult to be directly unblocked are cleaned by gas impact.
This device can improve the efficiency of hood cleaning, reduce cleaning pressure, ensure uniform unblocking of hood, avoid local coking, and improve the operating efficiency of the boiler.
Smart Images

Figure CN222560012U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cleaning the blocked scorch in an air hood eye, in particular to a device for cleaning the blocked scorch in an air hood eye. Background Art
[0002] The wind hood is a facility that changes vertical wind into horizontal wind. It is commonly used in fluidized bed boilers. It can evenly distribute the primary air, so that the bed material is evenly distributed on the material bed. When the boiler is in standby mode, the bed material is pressed on the wind hood. Since the wind hood eye is set horizontally, the bed material will not fall into the wind chamber.
[0003] During the operation of the fluidized bed boiler, the furnace may coke due to some uncertain factors or accidents. When the furnace is shut down due to coking or water leakage, a large area of coke or wet mud will cover the upper part of the hood. After we clean up the debris around the hood, we need to check the hood eyes one by one with a fine hook. If some of the hood eyes are blocked in the boiler, the primary air will not evenly distribute the bed material on the bed during operation. As the operation time increases, local coking will form, thus affecting production.
[0004] Since there are hundreds of hoods on the boiler and each hood has 12 hood eyes, the currently used tools are only thin curved hooks that need to be inserted into the hood eyes one by one, which consumes a lot of manpower. In addition, since the hood is a hollow structure, if a blockage enters this part, it is difficult to clear the blockage with existing tools, and the cleaning is very complicated. Utility Model Content
[0005] The utility model aims to provide a hood eye blockage cleaning device, aiming to solve the problems mentioned in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the hood eye blockage cleaning device comprises a positioning groove, the upper surface of the positioning groove is provided with a baffle, the upper surface of the baffle is provided with a supporting part, the outer surface of the supporting part is provided with a supporting mechanism corresponding to the number and position of the hood eyes, the supporting mechanism comprises a connecting rod and a fixed seat, the fixed seat is evenly arranged on the outer surface of the supporting part, one end of the connecting rod is hinged to the fixed seat, the outer surface of the supporting part is threadedly connected with an adjusting sleeve, the lower end surface of the adjusting sleeve is rotatably connected with a follower sleeve, the outer surface of the follower sleeve is evenly provided with an extension rod, and also comprises a connecting plate, the two ends of the connecting plate are respectively hinged with the extension rod and the connecting rod, the outer surface of the connecting rod is fixed with a poking rod, the lower end of the poking rod is provided with a bending part, and the bending part of the poking rod can be extended into the hood eye.
[0007] Preferably, the supporting portion includes an air collecting chamber fixed on the baffle, an air filling portion is provided at the upper end of the air collecting chamber, the fixing seat and the adjusting sleeve are provided on the outer surface of the air filling portion, air nozzles are evenly provided on the outer surface of the air collecting chamber, exhaust passages are provided inside the poking rod and the bent portion, the air nozzle is connected to one end of the poking rod by a folding tube, an annular wall panel is provided inside one end of the bent portion, a top pipe is slidably connected inside the wall panel, a limiting plate is provided at one end of the top pipe, a spring for squeezing the limiting plate is provided inside the bent portion, and a through groove is provided on the outer surface of the top pipe.
[0008] Preferably, after the limiting plate is separated from one end of the wall plate, the gas in the bent portion can enter the interior of the top pipe through the through groove.
[0009] Preferably, the limiting plate is made of rubber.
[0010] Preferably, a limiting ring is provided on the outer surface of the connecting rod, and the folding tube passes through the limiting ring.
[0011] The beneficial effects of the utility model are:
[0012] The device can dredge all hood eyes on a single hood at the same time, thereby improving the dredging efficiency. At the same time, for hood eyes that are difficult to dredge directly, gas can be continuously delivered into the hood eyes to impact the inside of the hood eyes, thereby dredging the blocked hood eyes, reducing the cleaning pressure and improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.
[0014] Figure 2 It is a structural schematic diagram of a hood according to a specific embodiment of the utility model.
[0015] Figure 3 It is a schematic diagram of the cooperation between the positioning groove and the hood in a specific embodiment of the utility model.
[0016] Figure 4 It is a structural schematic diagram of a bending portion and a top pipe in a specific embodiment of the utility model.
[0017] In the figure: 1. hood; 2. hood eye; 3. positioning groove; 4. baffle; 5. connecting rod; 6. fixing seat; 7. adjusting sleeve; 8. follower sleeve; 9. extension rod; 10. connecting plate; 11. poking rod; 12. bending part; 13. air collecting chamber; 14. inflation part; 15. air nozzle; 16. folding tube; 17. wall panel; 18. top tube; 19. limit plate; 20. spring; 21. through groove; 22. limit ring. DETAILED DESCRIPTION
[0018] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.
[0019] like Figure 1-4 As shown, a device for cleaning the blocked coke in the eye of the hood comprises a positioning groove 3, a baffle 4 is arranged on the upper surface of the positioning groove 3, a supporting part is arranged on the upper surface of the baffle 4, a supporting part is arranged on the outer surface of the supporting part, a supporting mechanism corresponding to the number and position of the eye of the hood 2 is arranged on the outer surface of the supporting part, the supporting mechanism comprises a connecting rod 5 and a fixing seat 6, the fixing seat 6 is evenly arranged on the outer surface of the supporting part, one end of the connecting rod 5 is hinged to the fixing seat 6, an adjusting sleeve 7 is threadedly connected to the outer surface of the supporting part, a follower sleeve 8 is rotatably connected to the lower end surface of the adjusting sleeve 7, an extension rod 9 is evenly arranged on the outer surface of the follower sleeve 8, and a connecting plate 10 is also included, the two ends of the connecting plate 10 are respectively hinged to the extension rod 9 and the connecting rod 5, a poking rod 11 is fixed to the outer surface of the connecting rod 5, a bending part 12 is arranged at the lower end of the poking rod 11, and the bending part 12 of the poking rod 11 can extend into the eye of the hood 2.
[0020] The shape of the positioning groove 3 is the same as that of the upper end of the hood 1, and the positioning groove 3 can be directly sleeved on the outer surface of the hood 1. When the positioning groove 3 is sleeved on the outer surface of the hood 1, the positioning groove 3 cannot rotate. At this time, the bending portion 12 at the lower end of the poke rod 11 corresponds one by one to the hood eye 2 on the hood 1, and the baffle plate 4 abuts against the upper surface of the hood 1. When the baffle plate 4 abuts against the upper surface of the hood 1, the bending portion 12 can enter the interior of the hood eye 2.
[0021] The outer surface of the support part is provided with an external thread, and the inner surface of the adjusting sleeve 7 is provided with an internal thread. The adjusting sleeve 7 is threadedly connected to the support part, and the following sleeve 8 does not contact the support part. Since the following sleeve 8 is limited by the supporting mechanism on the outer surface of the support part, when the adjusting sleeve 7 rotates on the outer surface of the support part, the following sleeve 8 can only follow the adjusting sleeve 7 to move upward or downward on the outer surface of the support part, and will not follow the adjusting sleeve 7 to rotate. When the adjusting sleeve 7 moves downward on the outer surface of the support part, the following sleeve 8 is driven to move downward on the outer surface of the support part, and the following sleeve 8 drives the connecting rod 5 to move downward through the connecting plate 10, and the connecting rod 5 drives the poking rod 11 and the bending part 12 to swing, and the bending part 12 can enter the hood eye 2, which is convenient for poking open all the hood eyes 2 on a single hood 1. When the cleaning of a single hood 1 is completed, the adjusting sleeve 7 is controlled to move upward, so that the bending part 12 is removed from the hood eye 2, which is convenient for processing the next hood 1.
[0022] Furthermore, the supporting portion includes an air collecting chamber 13 fixed on the baffle 4, an air charging portion 14 is arranged at the upper end of the air collecting chamber 13, a fixing seat 6 and an adjusting sleeve 7 are arranged on the outer surface of the air charging portion 14, an air nozzle 15 is evenly arranged on the outer surface of the air collecting chamber 13, an exhaust passage is arranged inside the poking rod 11 and the bending portion 12, the air nozzle 15 is connected to one end of the poking rod 11 by a folding tube 16, an annular wall panel 17 is arranged inside one end of the bending portion 12, a top pipe 18 is slidably connected inside the wall panel 17, a limiting plate 19 is arranged at one end of the top pipe 18, a spring 20 for squeezing the limiting plate 19 is arranged inside the bending portion 12, a through groove 21 is arranged on the outer surface of the top pipe 18, the air charging portion 14 can be a manual air charging device or an electric air charging device, and a large amount of air can be transported into the air collecting chamber 13 through the air charging portion 14.
[0023] When the bent portion 12 enters the hood eye 2 to clean the impurities, and when the impurities in the hood eye 2 are difficult to be directly poked open by the bent portion 12, a large amount of gas can be sprayed into the hood eye 2 through the inflation portion 14, thereby cleaning the hood eye 2. Specifically, when the hood eye 2 is not blocked, the spring 20 can push the limit plate 19 against one side of the wall plate 17, and the gas generated by the inflation portion 14 enters the bent portion 12 after passing through the gas collecting chamber 13, the folded tube 16 and the poking rod 11. Since the limit plate 19 abuts against the wall plate 17, the air in the bent portion 12 cannot be discharged normally. For some hood eyes 2 that are blocked, when the bent portion 12 enters After entering the hood eye 2, the presence of coke-blocking impurities in the hood eye 2 will hinder the top pipe 18 from moving further into the hood eye 2, thereby compressing the spring 20 in the bent portion 12. At the same time, the limit plate 19 is separated from the wall panel 17, and the gas generated by the inflation portion 14 passes through the gas collecting chamber 13, the folding tube 16 and the poking rod 11, and can continuously discharge the gas into the blocked hood eye 2 through the bent portion 12 and the top pipe 18 until the hood eye 2 is opened, and gas is only delivered to the top pipe 18 in the blocked hood eye 2, and the top pipe 18 in the unblocked hood eye 2 will not be delivered with gas, thereby ensuring that the strength of the discharged gas is sufficient to open the hood eye 2.
[0024] When the hood hole 2 cannot be opened after exhausting gas for a long time, the inside of the hood 1 may have been vitrified, and the hood 1 needs to be replaced.
[0025] Furthermore, after the limiting plate 19 is separated from one end of the wall plate 17 , the gas in the bending portion 12 can enter the interior of the top pipe 18 through the through groove 21 , ensuring that the gas in the bending portion 12 can enter the interior of the top pipe 18 through the through groove 21 in time.
[0026] Furthermore, the material of the limiting plate 19 is rubber, which ensures the sealing between the limiting plate 19 and the wall plate 17 and prevents gas leakage between the limiting plate 19 and the wall plate 17, thereby preventing the impact strength of part of the coke blocking hood eye 2 from being affected.
[0027] Furthermore, a limiting ring 22 is provided on the outer surface of the connecting rod 5 , and the folding tube 16 passes through the limiting ring 22 . The limiting ring 22 is used to limit the position of the folding tube 16 to prevent the folding tube 16 from overlapping and winding.
[0028] The device can simultaneously dredge all hood eyes 2 on a single hood 1, thereby improving the dredging efficiency. At the same time, for hood eyes 2 that are difficult to dredge directly, gas can be continuously delivered to the hood eyes 2 to impact the inside of the hood eyes 2, thereby dredging the blocked hood eyes 2, reducing the cleaning pressure and improving the cleaning efficiency.
[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
Claims
1. A hood eye blockage cleaning device, characterized in that: The invention comprises a positioning groove (3), the upper surface of the positioning groove (3) is provided with a baffle (4), the upper surface of the baffle (4) is provided with a support portion, the outer surface of the support portion is provided with a support mechanism corresponding to the number and position of the hood eyes (2), the support mechanism comprises a connecting rod (5) and a fixing seat (6), the fixing seat (6) is evenly arranged on the outer surface of the support portion, one end of the connecting rod (5) is hinged to the fixing seat (6), and the outer surface of the support portion is threadedly connected with an adjusting sleeve (7 ), the lower end surface of the adjusting sleeve (7) is rotatably connected to a follower sleeve (8), the outer surface of the follower sleeve (8) is evenly provided with extension rods (9), and also includes a connecting plate (10), the two ends of the connecting plate (10) are respectively hinged to the extension rod (9) and the connecting rod (5), the outer surface of the connecting rod (5) is fixed with a poking rod (11), the lower end of the poking rod (11) is provided with a bending portion (12), and the bending portion (12) of the poking rod (11) can be extended into the hood eye (2).
2. The hood eye blockage cleaning device according to claim 1 is characterized in that: The support portion comprises an air collecting chamber (13) fixed on the baffle (4), an air charging portion (14) being arranged at the upper end of the air collecting chamber (13), the fixing seat (6) and the adjusting sleeve (7) being arranged on the outer surface of the air charging portion (14), an air nozzle (15) being evenly arranged on the outer surface of the air collecting chamber (13), an exhaust passage being arranged inside the poking rod (11) and the bending portion (12), the air nozzle (15) being connected to one end of the poking rod (11) via a folding tube (16), an annular wall plate (17) being arranged inside one end of the bending portion (12), a top pipe (18) being slidably connected inside the wall plate (17), a limiting plate (19) being arranged at one end of the top pipe (18), a spring (20) for pressing the limiting plate (19) being arranged inside the bending portion (12), and a through groove (21) being arranged on the outer surface of the top pipe (18).
3. The hood eye blockage cleaning device according to claim 2 is characterized in that: After the limiting plate (19) is separated from one end of the wall plate (17), the gas in the bent portion (12) can enter the interior of the top pipe (18) through the through groove (21).
4. The hood eye blockage cleaning device according to claim 3 is characterized in that: The material of the limiting plate (19) is rubber.
5. The hood eye blockage cleaning device according to claim 2 is characterized in that: A limiting ring (22) is provided on the outer surface of the connecting rod (5), and the folding tube (16) passes through the limiting ring (22).