A burner tip unblocker
The design of the conical vent pipe and connection structure solves the problem of poor sealing at the connection of the burner nozzle unblocking device, achieving quick disassembly and sealing effect, adapting to pipe connections of different lengths, simplifying operation steps, and improving the safety and flexibility of the unblocking device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-16
AI Technical Summary
Existing burner nozzle unclogging devices have poor sealing performance at the connection points, and gaps are prone to appear after prolonged use, leading to steam leakage, affecting unclogging efficiency and posing safety hazards. Furthermore, they cannot adapt to pipe connections of different lengths.
It adopts a tapered vent pipe and connection structure, including first and second connecting parts. Through the combination design of snap-fit groove, threaded groove and limit bolt, it achieves quick-release installation and sealing effect. The connection length is adjusted by using telescopic tube and sealing ring, and the gas can be quickly opened and closed by combining hydraulic cylinder and movable plug.
It improves the fixing strength and sealing effect between parts, enhances the applicability and safety of the device, simplifies the operation steps, and improves the flexibility and ease of use of the unblocking device.
Smart Images

Figure CN224365374U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of sintering ore production equipment, specifically, it relates to a furnace nozzle unclogging device. Background Technology
[0002] In the sintering process, the burner is one of the key pieces of equipment. Its function is to evenly inject fuel (such as coal gas, natural gas, etc.) into the sintering bed to provide the heat required for the sintering reaction. However, in actual production, burner blockages frequently occur.
[0003] During the production of sintered ore, the raw materials contain a large amount of dust, impurities, and substances such as tar that may be produced at high temperatures. These substances tend to accumulate at the burner nozzles, and with increased usage time, they gradually clog the nozzle openings, leading to uneven fuel injection, and in some cases, complete blockage of some nozzles.
[0004] Utility model CN219572717U discloses a high-efficiency burner unclogging device for a heating furnace, relating to the field of petrochemical technology. This utility model includes: a steam inlet pipeline equipped with a pressure gauge and a main valve to introduce steam into the unclogging device; a steam return pipeline equipped with a return valve to discharge excess steam; branch pipelines connected to the steam inlet pipeline, the steam return pipeline, and six flexible hoses for connecting the burners, each hose equipped with a branch valve. This utility model's high-efficiency burner unclogging device can unclogging all six burners at once, and can adjust the steam flow in each pipeline according to the clogging status of each burner, eliminating the need for repeated unclogging, thus saving steam and significantly improving the unclogging efficiency.
[0005] However, the aforementioned patent also has the following problems: When the device is connected and fixed to the burner nozzle, gaps are prone to appear at the connection point after prolonged use. These gaps not only affect the installation effect of the device, leading to steam leakage and reduced unblocking efficiency, but may also pose safety hazards, such as steam burns to operators. During installation, the unblocking device cannot adjust the connection length. Due to differences in the installation position of the burner nozzle and the length of the pipes in different sintering equipment, this lack of length adjustment capability limits the device's applicability. For longer pipes, the unblocking device cannot achieve a good wrapping effect, failing to ensure that steam can act evenly and effectively on the clogged part of the burner nozzle, thus affecting the unblocking effect.
[0006] In view of this, this utility model is hereby proposed. Utility Model Content
[0007] To solve the aforementioned technical problem of poor sealing at the joint, the basic concept of the technical solution adopted by this utility model is as follows:
[0008] A burner nozzle unclogging device includes:
[0009] Conical ventilator, the conical ventilator is cone-shaped;
[0010] The connecting structure includes a first connecting part and a second connecting part. The first connecting part includes a first vent pipe fixedly installed at the top of a conical vent pipe, a first fixing ring plate fixedly installed on the outer wall of the first vent pipe, a first snap-fit plate fixedly installed on one side of the outer wall of the first fixing ring plate, and a first snap-fit groove formed inside the first fixing ring plate. A second fixing ring plate is provided on the outside of the conical vent pipe, a second snap-fit groove is formed on one side of the outer wall of the second fixing ring plate, and a second snap-fit plate is fixedly installed on one side of the outer wall of the second fixing ring plate. The second snap-fit plate is snap-fitted into the inside of the first snap-fit groove. The second connecting part also includes two sets of first threaded grooves formed inside the first fixing ring plate, two sets of second threaded grooves formed inside the second fixing ring plate, and two sets of first limiting bolts provided on the outside of the conical vent pipe. The first limiting bolts are screwed into the second threaded grooves and the inside of the first threaded grooves, and a first hexagonal nut is screwed onto the outer wall of the first limiting bolts.
[0011] In a preferred embodiment of this utility model, a first connecting flange is fixedly installed at the bottom of the conical vent pipe, a second connecting flange is provided at the bottom of the conical vent pipe, a telescopic pipe is fixedly installed between the first connecting flange and the second connecting flange, eight sets of fourth threaded grooves are opened inside the first connecting flange and the second connecting flange, eight sets of second limiting bolts are provided on the outer wall of the conical vent pipe, the second limiting bolts are spirally installed inside the fourth threaded grooves, and a second hexagonal nut is spirally installed on the outer wall of the second limiting bolt.
[0012] In a preferred embodiment of this utility model, a third threaded groove is provided on the inner wall of the first connecting flange, and a second sealing ring is attached and installed on the inner wall of the second connecting flange.
[0013] In a preferred embodiment of this utility model, the second fixing ring plate has two sets of holes inside, a first air supply pipe is fixedly installed in the holes, a second air supply pipe is fixedly installed at one end of the first air supply pipe, a third air supply pipe is fixedly installed on the outer wall of the second air supply pipe, and an air valve is provided on the outer wall of the third air supply pipe.
[0014] In a preferred embodiment of this utility model, a sealing circular plate is fixedly installed at one end of the second air supply pipe, a hydraulic cylinder is fixedly installed on one outer wall of the sealing circular plate, and a hydraulic push rod is provided on the other outer wall of the sealing circular plate. The output end of the hydraulic cylinder is fixedly connected to one end of the telescopic inner rod of the hydraulic push rod.
[0015] In a preferred embodiment of this utility model, a limiting sleeve is fixedly installed on the outer wall of the other side of the sealing circular plate, and a hydraulic push rod is disposed inside the limiting sleeve.
[0016] In a preferred embodiment of this utility model, a movable plug is provided inside the second air supply pipe. The other end of the telescopic inner rod of the hydraulic push rod is fixedly connected to one side outer wall of the movable plug. A first sealing ring is fixedly installed on one side outer wall of the movable plug, and the outer wall of the first sealing ring is in close contact with the inner wall of the second air supply pipe.
[0017] Compared with the prior art, the present invention has the following advantages:
[0018] 1. To achieve quick disassembly and installation of the unblocking device parts, improve the fixing effect between parts, enhance the fixing strength between parts, reduce gaps, improve the sealing effect between parts, and improve the safety of the device.
[0019] 2. To achieve the purpose of connecting devices and pipelines, facilitating connection with pipelines of different lengths, increasing the applicability of the device, improving the connection effect between devices, and increasing the flexibility of device use.
[0020] 3. To achieve the purpose of quickly opening and closing the gas valve, simplify the operation steps of the device, improve the convenience of using the device, and optimize the user experience.
[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0022] In the attached diagram:
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the first fixed ring plate structure of this utility model;
[0025] Figure 3 This is a schematic diagram of the second fixing ring plate structure of this utility model;
[0026] Figure 4 This is a schematic diagram showing the disassembled second limiting bolt and second threaded groove of this utility model;
[0027] Figure 5 This is a schematic diagram of the second sealing ring structure of this utility model;
[0028] Figure 6 This is a schematic diagram of the sealing circular plate structure of this utility model.
[0029] In the diagram: 10. Conical vent pipe; 11. First vent pipe; 12. First fixing ring plate; 13. Second fixing ring plate; 14. First snap-fit groove; 15. First threaded groove; 16. First snap-fit plate; 17. Second snap-fit plate; 18. Second snap-fit groove; 19. Second threaded groove; 20. First limit bolt; 21. First hexagonal nut; 22. First air supply pipe; 23. Second air supply pipe; 24. Third air supply pipe; 25. Air valve; 26. Sealing disc; 27. Hydraulic cylinder; 28. Limiting sleeve; 29. Hydraulic push rod; 30. Movable plug; 31. First sealing ring; 32. First connecting flange; 33. Second connecting flange; 34. Fourth threaded groove; 35. Telescopic pipe; 36. Second limit bolt; 37. Second hexagonal nut; 38. Third threaded groove; 39. Second sealing ring. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0031] Example 1: A burner nozzle unclogging device, specifically as follows Figure 1 , Figure 2 and Figure 3As shown, the device includes a conical vent pipe 10, which is conical in shape; a connecting structure, comprising a first connecting part and a second connecting part. The first connecting part includes a first vent pipe 11 fixedly installed at the top of the conical vent pipe 10, a first fixing ring plate 12 fixedly installed on the outer wall of the first vent pipe 11, a first snap-fit plate 16 fixedly installed on one side of the outer wall of the first fixing ring plate 12, and a first snap-fit groove 14 formed inside the first fixing ring plate 12. A second fixing ring plate 13 is provided on the outside of the conical vent pipe 10, and a second snap-fit groove 18 is formed on one side of the outer wall of the second fixing ring plate 13. A second snap-fit plate 17 is fixedly installed on one side of the outer wall of the first snap-fit groove 14. The second snap-fit plate 17 is snap-fitted into the interior of the first snap-fit groove 14, and the first snap-fit plate 16 is snap-fitted into the interior of the second snap-fit groove 18. The second connecting part also includes two sets of first threaded grooves 15 opened inside the first fixing ring plate 12, and two sets of second threaded grooves 19 opened inside the second fixing ring plate 13. Two sets of first limiting bolts 20 are provided on the outside of the tapered vent pipe 10. The first limiting bolts 20 are screwed into the interior of the second threaded grooves 19 and the first threaded grooves 15, and a first hexagonal nut 21 is screwed onto the outer wall of the first limiting bolts 20. The connection structure reinforces and seals the connection of the device. Push the second fixing ring plate 13 to snap the second snap-fit plate 17 into the inside of the first snap-fit groove 14, and snap the first snap-fit plate 16 into the inside of the second snap-fit groove 18, so that the first fixing ring plate 12 and the second fixing ring plate 13 are tightly attached. Then, screw the two sets of first limiting bolts 20 into the inside of the second thread groove 19 and the first thread groove 15 in sequence. Screw the first hexagonal nut 21 onto the outer wall of the first limiting bolt 20, so that the first fixing ring plate 12 and the second fixing ring plate 13 are fixedly connected.
[0032] Based on the above, the structure of the conical vent pipe 10, the first vent pipe 11, the first fixing ring plate 12, the second fixing ring plate 13, the first snap-fit groove 14, the first threaded groove 15, the first snap-fit plate 16, the second snap-fit plate 17, the second snap-fit groove 18, the second threaded groove 19, the first limit bolt 20, and the first hexagonal nut 21 achieves the purpose of quick disassembly and installation of the unblocking device parts, improves the fixing effect between parts, enhances the fixing strength between parts, reduces gaps, improves the sealing effect between parts, and improves the safety of the device.
[0033] Example 2: Based on Example 1, specifically as follows... Figure 1 , Figure 4 and Figure 5As shown, a first connecting flange 32 is fixedly installed at the bottom of the conical vent pipe 10, and a second connecting flange 33 is provided at the bottom of the conical vent pipe 10. A telescopic pipe 35 is fixedly installed between the first connecting flange 32 and the second connecting flange 33. Eight sets of fourth threaded grooves 34 are opened inside the first connecting flange 32 and the second connecting flange 33. Eight sets of second limiting bolts 36 are provided on the outer wall of the conical vent pipe 10. The second limiting bolts 36 are screwed into the fourth threaded grooves 34, and a second hexagonal nut 37 is screwed onto the outer wall of the second limiting bolt 36. The second connecting flange 33 is fitted onto the outer wall of the pipe. The distance between the first connecting flange 32 and the second connecting flange 33 is adjusted as needed. The second limiting bolts 36 are screwed into the fourth threaded grooves 34. The telescopic pipe 35 provides protection and sealing between the first connecting flange 32 and the second connecting flange 33. The second hexagonal nut 37 is screwed onto the outer wall of the second limiting bolt 36, thus limiting the installation of the second limiting bolt 36 between the first connecting flange 32 and the second connecting flange 33.
[0034] Specifically, such as Figure 1 , Figure 4 and Figure 5 As shown, a third threaded groove 38 is provided on the inner wall of the first connecting flange 32, and a second sealing ring 39 is adhered and installed on the inner wall of the second connecting flange 33. The third threaded groove 38 and the second sealing ring 39 improve the sealing and connection effect between the device and the pipeline.
[0035] Based on the above, the structure of the first connecting flange 32, the second connecting flange 33, the fourth threaded groove 34, the telescopic tube 35, the second limiting bolt 36, the second hexagonal nut 37, the third threaded groove 38, and the second sealing ring 39 achieves the purpose of connecting the device and the pipeline, which facilitates connection with pipelines of different lengths, improves the applicability of the device, enhances the connection effect between devices, and increases the flexibility of device use.
[0036] Example 3: Based on Examples 1 and 2, specifically as follows... Figure 1 and Figure 3 As shown, the second fixed ring plate 13 has two sets of holes inside, and a first gas supply pipe 22 is fixedly installed in each hole. A second gas supply pipe 23 is fixedly installed at one end of the first gas supply pipe 22, and a third gas supply pipe 24 is fixedly installed on the outer wall of the second gas supply pipe 23. An air valve 25 is provided on the outer wall of the third gas supply pipe 24. Gas is transported through the first gas supply pipe 22 and the second gas supply pipe 23. When the air valve 25 is opened, gas is branched through the third gas supply pipe 24 to clear blockages in multiple sets of pipes.
[0037] Specifically, such as Figure 1 , Figure 3 and Figure 6As shown, a sealing circular plate 26 is fixedly installed at one end of the second air supply pipe 23. A hydraulic cylinder 27 is fixedly installed on one outer wall of the sealing circular plate 26, and a hydraulic push rod 29 is provided on the other outer wall of the sealing circular plate 26. The output end of the hydraulic cylinder 27 is fixedly connected to one end of the telescopic inner rod of the hydraulic push rod 29. Activating the hydraulic cylinder 27 drives the hydraulic push rod 29 to move.
[0038] Specifically, such as Figure 1 , Figure 3 and Figure 6 As shown, a limiting sleeve 28 is fixedly installed on the outer wall of the other side of the sealing circular plate 26, and the hydraulic push rod 29 is disposed inside the limiting sleeve 28. The limiting sleeve 28 protects the hydraulic push rod 29.
[0039] Specifically, such as Figure 1 , Figure 3 and Figure 6 As shown, a movable plug 30 is installed inside the second air supply pipe 23. The other end of the telescopic inner rod of the hydraulic push rod 29 is fixedly connected to one outer wall of the movable plug 30. A first sealing ring 31 is fixedly installed on one outer wall of the movable plug 30, and the outer wall of the first sealing ring 31 is in close contact with the inner wall of the second air supply pipe 23. When the hydraulic push rod 29 moves, it drives the movable plug 30 to move inside the second air supply pipe 23, thereby clearing and blocking the third air supply pipe 24.
[0040] In summary, the structure of the conical vent pipe 10, the second fixed ring plate 13, the first air supply pipe 22, the second air supply pipe 23, the third air supply pipe 24, the air valve 25, the sealing circular plate 26, the hydraulic cylinder 27, the limiting sleeve 28, the hydraulic push rod 29, the movable plug 30, and the first sealing rubber ring 31 achieves the purpose of quickly opening and closing the gas valve, simplifying the operation steps of the device, improving the convenience of using the device, and optimizing the user experience of the device.
[0041] Working principle: When connecting the device to the pipeline, the connection structure is first reinforced and sealed. The second fixing ring plate 13 is pushed, causing the second snap-fit plate 17 to snap into the first snap-fit groove 14 of the first fixing ring plate 12. Simultaneously, the first snap-fit plate 16 snaps into the second snap-fit groove 18 of the second fixing ring plate 13, ensuring tight contact between the first fixing ring plate 12 and the second fixing ring plate 13. Then, the two sets of first limiting bolts 20 are sequentially screwed into the second threaded groove 19 and the first threaded groove 15, and the first hexagonal nut 21 is screwed onto the outer wall of the first limiting bolts 20, thereby firmly fixing the first fixing ring plate 12 and the second fixing ring plate 13. This strengthens the stability and sealing of the device connection, preventing gaps from appearing due to prolonged use and avoiding gas leakage that could affect the unblocking effect. The tapered vent pipe 10 has a first connecting flange 32 at its bottom, and a second connecting flange 33 at the bottom is connected to the first connecting flange 32 via a telescopic pipe 35. The second connecting flange 33 is fitted onto the outer wall of the pipe. The distance between the first connecting flange 32 and the second connecting flange 33 is adjusted according to the actual pipe conditions. Then, the second limiting bolt 36 is screwed into the fourth threaded groove 34. The telescopic tube 35 serves as a protective and sealing function. Finally, the second hexagonal nut 37 is screwed onto the outer wall of the second limiting bolt 36 to achieve the limiting installation of the second limiting bolt 36 between the first connecting flange 32 and the second connecting flange 33, further enhancing the stability and sealing of the connection between the device and the pipe. At the same time, the third threaded groove 38 on the inner wall of the first connecting flange 32 and the second sealing ring 39 attached to the inner wall of the second connecting flange 33 can further improve the sealing and connection effect between the device and the pipe. The first gas supply pipe 22 is fixedly installed in the hole inside the second fixing ring plate 13, with one end connected to the second gas supply pipe 23. The third gas supply pipe 24 is fixedly installed on the outer wall of the second gas supply pipe 23, and a gas valve 25 is installed on the outer wall of the third gas supply pipe 24. Gas enters the second gas supply pipe 23 through the first gas supply pipe 22. When multiple sets of pipes need to be cleared, the gas valve 25 is opened, and the gas is circulated through the branch of the third gas supply pipe 24, thereby realizing the simultaneous clearing operation of multiple sets of burner pipes. A sealing circular plate 26 is fixedly installed at one end of the second gas supply pipe 23. A hydraulic cylinder 27 is installed on one outer wall of the sealing circular plate 26, and a hydraulic push rod 29 is set on the other outer wall. The output end of the hydraulic cylinder 27 is fixedly connected to one end of the telescopic inner rod of the hydraulic push rod 29. The hydraulic cylinder 27 is activated, and its output end drives the telescopic inner rod of the hydraulic push rod 29 to move. A limiting sleeve 28 is fixedly installed on the outer wall of the other side of the sealing circular plate 26. The hydraulic push rod 29 is located inside the limiting sleeve 28, which protects the hydraulic push rod 29 and ensures its stability and safety during movement. A movable plug 30 is installed inside the second air supply pipe 23. The other end of the telescopic inner rod of the hydraulic push rod 29 is fixedly connected to the outer wall of the movable plug 30. A first sealing ring 31 is fixedly installed on the outer wall of the movable plug 30, and the outer wall of the first sealing ring 31 is in close contact with the inner wall of the second air supply pipe 23.When the hydraulic push rod 29 moves, it drives the movable plug 30 to move inside the second gas supply pipe 23. During the movement of the movable plug 30, it can clear the third gas supply pipe 24, ensuring that gas can smoothly enter each branch pipe for unblocking. The movable plug 30 can also block the third gas supply pipe 24. By controlling the position of the movable plug 30, the unblocking of different branch pipes can be controlled, improving the targeting and effectiveness of unblocking.
[0042] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A burner nozzle unclogging device, characterized in that, include: Conical ventilation tube (10), the conical ventilation tube (10) is conical in shape; The connection structure includes a first connection part and a second connection part. The first connection part includes a first vent pipe (11) fixedly installed on the top of the conical vent pipe (10). A first fixing ring plate (12) is fixedly installed on the outer wall of the first vent pipe (11). A first snap-fit plate (16) is fixedly installed on one side of the outer wall of the first fixing ring plate (12). A first snap-fit groove (14) is provided inside the first fixing ring plate (12). A second fixing ring plate (13) is provided on the outside of the conical vent pipe (10). A second snap-fit groove (18) is provided on one side of the outer wall of the second fixing ring plate (13). A second snap-fit groove (18) is fixedly installed on one side of the outer wall of the second fixing ring plate (13). The snap-fit plate (17) is snap-fitted into the inside of the first snap-fit groove (14), and the first snap-fit plate (16) is snap-fitted into the inside of the second snap-fit groove (18). The second connecting part also includes two sets of first threaded grooves (15) opened inside the first fixing ring plate (12), and two sets of second threaded grooves (19) opened inside the second fixing ring plate (13). Two sets of first limiting bolts (20) are provided on the outside of the tapered vent pipe (10). The first limiting bolts (20) are spirally installed inside the second threaded grooves (19) and the first threaded grooves (15). A first hexagonal nut (21) is spirally installed on the outer wall of the first limiting bolts (20).
2. The burner nozzle unclogging device according to claim 1, characterized in that, The bottom of the conical vent pipe (10) is fixedly installed with a first connecting flange (32) and a second connecting flange (33). A telescopic pipe (35) is fixedly installed between the first connecting flange (32) and the second connecting flange (33). The interior of the first connecting flange (32) and the second connecting flange (33) is provided with eight sets of fourth threaded grooves (34). The outer wall of the conical vent pipe (10) is provided with eight sets of second limiting bolts (36). The second limiting bolts (36) are spirally installed inside the fourth threaded grooves (34). The outer wall of the second limiting bolts (36) is spirally installed with a second hexagonal nut (37).
3. The burner nozzle unclogging device according to claim 2, characterized in that, The inner wall of the first connecting flange (32) is provided with a third threaded groove (38), and the inner wall of the second connecting flange (33) is attached with a second sealing ring (39).
4. The burner nozzle unclogging device according to claim 1, characterized in that, The second fixed ring plate (13) has two sets of holes inside. A first gas supply pipe (22) is fixedly installed in the holes. A second gas supply pipe (23) is fixedly installed at one end of the first gas supply pipe (22). A third gas supply pipe (24) is fixedly installed on the outer wall of the second gas supply pipe (23). An air valve (25) is provided on the outer wall of the third gas supply pipe (24).
5. The burner nozzle unclogging device according to claim 4, characterized in that, A sealing disc (26) is fixedly installed at one end of the second air pipe (23). A hydraulic cylinder (27) is fixedly installed on one side of the outer wall of the sealing disc (26). A hydraulic push rod (29) is provided on the other side of the outer wall of the sealing disc (26). The output end of the hydraulic cylinder (27) is fixedly connected to one end of the telescopic inner rod of the hydraulic push rod (29).
6. The burner nozzle unclogging device according to claim 5, characterized in that, A limiting sleeve (28) is fixedly installed on the outer wall of the other side of the sealing circular plate (26), and a hydraulic push rod (29) is located inside the limiting sleeve (28).
7. The burner nozzle unclogging device according to claim 4, characterized in that, The second air supply pipe (23) is provided with a movable plug (30) inside. The other end of the telescopic inner rod of the hydraulic push rod (29) is fixedly connected to one side of the outer wall of the movable plug (30). A first sealing ring (31) is fixedly installed on one side of the outer wall of the movable plug (30). The outer wall of the first sealing ring (31) is in close contact with the inner wall of the second air supply pipe (23).
Citation Information
Patent Citations
Efficient heating furnace burner nozzle unblocking device
CN219572717U