Boiler hot smoke discharging device for separating coal liquefaction pitch crude tar and ash
By designing the connecting and control components, the problem of inconvenient disassembly of the boiler flue gas exhaust pipe was solved, enabling convenient cleaning and exhaust volume control, and improving exhaust efficiency.
Patent Information
- Application Number
- CN202520329648.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The existing boiler flue gas exhaust pipes are fixedly connected, making them inconvenient to disassemble and clean, and the amount of flue gas discharged cannot be controlled, thus affecting the discharge efficiency.
By employing connecting and control components, and through the cooperation of levers and limit plates, the hot smoke exhaust pipe can be easily disassembled and cleaned, and the hot smoke exhaust volume can be controlled by the meshing of worm gear and turbine.
It enables convenient disassembly and cleaning of the hot smoke exhaust pipe, improving cleanliness, and allows control of the hot smoke exhaust volume as needed, thereby improving exhaust efficiency.
Smart Images

Figure CN223869225U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a boiler flue gas discharge device for separating crude tar and ash from coal liquefaction pitch. Background Technology
[0002] A boiler is an energy conversion device. The energy input to a boiler includes the chemical energy of fuel and electrical energy. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. A large amount of fuel is burned during boiler heating. The fuel of existing boilers is still mainly coal, and the flue gas from coal combustion needs to be discharged through exhaust pipes.
[0003] However, currently, the hot flue exhaust pipes are fixed to the boiler with bolts during use, which makes it inconvenient to disassemble and clean the pipes. Furthermore, the amount of hot flue exhaust cannot be controlled, affecting the efficiency of hot flue exhaust. Utility Model Content
[0004] The purpose of this invention is to provide a boiler flue gas discharge device for separating crude tar and ash from coal liquefaction pitch, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a boiler hot flue gas discharge device for separating coal liquefaction pitch crude tar and ash, comprising a boiler body, a connecting pipe, a hot flue gas discharge pipe, a connecting assembly, and a control assembly. The connecting pipe is disposed on the boiler body, the hot flue gas discharge pipe is connected to the connecting pipe through the connecting assembly, and the control assembly is disposed on the hot flue gas discharge pipe and is used to control the discharge volume of hot flue gas.
[0006] Preferably, the connecting assembly includes a flange disposed at the inlet of the connecting pipe and a disc disposed on the side of the hot smoke exhaust pipe near the connecting pipe, and fixing blocks are provided at both the upper and lower ends of the disc.
[0007] Preferably, the fixing block has a groove, and springs are provided on both the left and right sides of the groove. A movable block is provided at one end of each of the two springs that are close to each other. The movable block extends out of the groove through an opening and is connected to the limiting plate.
[0008] Preferably, the back side of the fixing block is provided with a sliding groove, the sliding groove is connected to the groove, and a lever is provided in the sliding groove.
[0009] Preferably, the lever extends through a groove into the recess and connects to the moving block.
[0010] Preferably, the control component includes a first protective pipe disposed on the hot smoke exhaust pipe, and a second protective pipe is connected to the upper surface of the first protective pipe.
[0011] Preferably, a rotating rod is provided inside the first protective pipe, one end of the rotating rod extends into the hot smoke exhaust pipe and is connected to a baffle, and the other end of the rotating rod extends into the second protective pipe and is connected to a turbine.
[0012] Preferably, a worm gear is provided inside the second protective tube, the worm gear meshes with a turbine, and the end of the worm gear away from the turbine extends to the outside of the second protective tube and is connected to a handle.
[0013] The technical effects and advantages of this utility model are as follows: This boiler hot flue gas discharge device for separating coal liquefaction pitch crude tar and ash, by pushing two levers to bring them closer together, causes two moving blocks to move closer together, which in turn allows two limiting plates to be pulled out of the limiting grooves, thus separating the disc from the flange. This allows for the disassembly and cleaning of the hot flue gas discharge pipe, ensuring its cleanliness and improving its appearance. When the flue gas volume is too large, the handle can be turned to drive the worm gear to rotate. As the worm gear meshes with the turbine, it drives the rotating rod to rotate, causing the baffle to rotate and partially block the inside of the hot flue gas discharge pipe, thereby reducing the area through which hot flue gas can pass and controlling the content of hot flue gas discharged. The overall structure is simple and easy to use. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the disk structure of this utility model;
[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;
[0017] Figure 4 This is a schematic diagram of the slide groove of this utility model;
[0018] Figure 5 This is a schematic diagram of the turbine structure of this utility model.
[0019] In the diagram: 1. Boiler body; 2. Connecting pipe; 3. Hot flue gas exhaust pipe; 4. Flange; 5. Plate; 6. Fixing block; 7. Groove; 8. Spring; 9. Moving block; 10. Limiting plate; 11. Slide groove; 12. Lever; 13. First protective pipe; 14. Second protective pipe; 15. Rotating rod; 16. Baffle; 17. Turbine; 18. Worm gear; 19. Handle. Detailed Implementation
[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0021] To facilitate the adjustment of hot smoke emissions, refer to Figure 1 , Figure 2 and Figure 3 As shown, the system includes a boiler body 1, a connecting pipe 2, a hot flue gas exhaust pipe 3, a connecting assembly, and a control assembly. The connecting pipe 2 is mounted on the boiler body 1, and the hot flue gas exhaust pipe 3 is connected to the connecting pipe 2 via the connecting assembly. The control assembly is mounted on the hot flue gas exhaust pipe and is used to control the amount of hot flue gas discharged. By pushing two levers 12, the two levers 12 are brought closer together, causing two moving blocks 9 to move closer together, which allows the two limiting plates 10 to be pulled out of the limiting grooves. This separates the disc 5 from the flange 4, allowing the hot flue gas exhaust pipe 3 to be disassembled and cleaned to ensure its cleanliness and improve its appearance. When the amount of exhaust gas is too large, the handle 19 can be turned to drive the worm gear 18 to rotate. As the worm gear 18 meshes with the turbine 17, it drives the rotating rod 15 to rotate, causing the baffle 16 to rotate and block the inside of the hot flue gas exhaust pipe 3 to a certain extent, thereby reducing the area through which hot flue gas can pass and controlling the amount of hot flue gas discharged.
[0022] For easier disassembly and installation of the hot flue gas exhaust pipe, please refer to... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the connecting assembly includes a flange 4 located at the inlet of the connecting pipe 2 and a disc 5 located on the side of the hot smoke exhaust pipe 3 near the connecting pipe 2. The disc 5 has fixing blocks 6 at both its upper and lower ends. A groove 7 is formed within the fixing block 6, and springs 8 are located on both sides of the groove 7. Moving blocks 9 are located at the ends of the two springs 8 that are close to each other. The moving blocks 9 extend through openings to the outside of the groove 7 and connect to a limiting plate 10. As the two moving blocks 9 approach each other, they cause the two limiting plates 10 to approach each other, allowing the two limiting plates 10 to be pulled out of the limiting grooves, thus moving the disc 5 away from the flange 4 and enabling the disassembly of the hot smoke exhaust pipe 3. A sliding groove 11 is formed on the back side of the fixing block 6, communicating with the groove 7, and a lever 12 is provided within the sliding groove 11. The lever 12 extends into the groove 7 via the slide groove 11 and connects to the movable block 9. During installation, pressing the two levers 12 brings them closer together, causing the movable blocks 9 to move closer together and stretching the spring 8, causing it to deform. When the limiting plate 10 is inserted into the limiting groove, the lever 12 is released, the spring 8 deforms, and the elastic reaction force is applied to the movable block 9, causing the two movable blocks 9 to move away from each other, thus allowing the limiting plate 10 to be inserted into the limiting groove. It should be noted that the limiting groove is opened on the surface of the flange 4 and is adapted to the limiting plate 10, but it is not shown in the figure.
[0023] Furthermore, the control component includes a first protective pipe 13 disposed on the hot smoke exhaust pipe, with a second protective pipe 14 connected to the upper surface of the first protective pipe 13. A rotating rod 15 is disposed inside the first protective pipe 13. One end of the rotating rod 15 extends into the hot smoke exhaust pipe and is connected to a baffle 16. The other end of the rotating rod 15 extends into the second protective pipe 14 and is connected to a turbine 17. As the handle 19 is rotated, it drives a worm gear 18 to rotate. Through the engagement of the worm gear 18 and the turbine 17, the rotating rod 15 rotates, driving the baffle 16 to rotate, thereby changing the exhaust area of the hot smoke in the hot smoke exhaust pipe 3, and thus controlling the amount of hot smoke discharged. A worm gear 18 is disposed inside the second protective pipe 14. The worm gear 18 engages with the turbine 17. The end of the worm gear 18 away from the turbine 17 extends out of the second protective pipe 14 and is connected to the handle 19.
[0024] In use, first push the two levers 12 to bring them closer together, causing the two moving blocks 9 to move closer together, thus pulling the two limiting plates 10 out of the limiting grooves. This allows the disc 5 to be separated from the flange 4, enabling the hot smoke exhaust pipe 3 to be disassembled and cleaned. During installation, press the two levers 12 to bring them closer together, causing the moving blocks 9 to move closer together and stretching the spring 8. Once the limiting plate 10 is inserted into the limiting groove, release the levers 12. The spring 8 will deform and exert its elasticity on the moving blocks 9, causing the two moving blocks 9 to move away from each other, allowing the limiting plate 10 to be inserted into the limiting groove. When the exhaust volume is too large, turn the handle 19 to drive the worm gear 18 to rotate. As the worm gear 18 meshes with the turbine 17, it will drive the rotating rod 15 to rotate, causing the baffle 16 to rotate and provide some obstruction to the inside of the hot smoke exhaust pipe 3, thereby reducing the area through which hot smoke can pass and controlling the amount of hot smoke discharged.
[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model.
Claims
1. A boiler flue gas discharge device for separating crude tar and ash from coal liquefaction pitch, characterized in that, The boiler body (1), connecting pipe (2), hot flue gas exhaust pipe (3), connecting assembly and control assembly are included. The connecting pipe (2) is installed on the boiler body (1). The hot flue gas exhaust pipe (3) is connected to the connecting pipe (2) through the connecting assembly. The control assembly is installed on the hot flue gas exhaust pipe and is used to control the amount of hot flue gas discharged.
2. The boiler flue gas discharge device for separating crude coal liquefaction pitch tar and ash according to claim 1, characterized in that: The connecting assembly includes a flange (4) disposed at the inlet of the connecting pipe (2) and a disc (5) disposed on the side of the hot smoke exhaust pipe (3) near the connecting pipe (2). The disc (5) is provided with fixing blocks (6) at both the upper and lower ends.
3. The boiler flue gas discharge device for separating crude coal liquefaction pitch tar and ash according to claim 2, characterized in that: The fixed block (6) has a groove (7) inside. Springs (8) are provided on both the left and right sides of the groove (7). A moving block (9) is provided at one end of each of the two springs (8) that are close to each other. The moving block (9) extends out of the groove (7) through the opening and is connected to the limiting plate (10).
4. The boiler flue gas discharge device for separating crude coal liquefaction pitch tar and ash according to claim 3, characterized in that: The fixed block (6) has a sliding groove (11) on its back side. The sliding groove (11) is connected to the groove (7), and a lever (12) is provided in the sliding groove (11).
5. The boiler flue gas discharge device for separating crude coal liquefaction pitch tar and ash according to claim 4, characterized in that: The lever (12) extends through the slide (11) into the groove (7) and connects with the moving block (9).
6. The boiler flue gas discharge device for separating crude coal liquefaction pitch tar and ash according to claim 1, characterized in that: The control component includes a first protective pipe (13) disposed on the hot smoke exhaust pipe, and a second protective pipe (14) is connected to the upper surface of the first protective pipe (13).
7. The boiler flue gas discharge device for separating crude coal liquefaction pitch tar and ash according to claim 6, characterized in that: A rotating rod (15) is provided inside the first protective tube (13). One end of the rotating rod (15) extends into the hot smoke exhaust pipe and is connected to a baffle (16). The other end of the rotating rod (15) extends into the second protective tube (14) and is connected to a turbine (17).
8. The boiler flue gas discharge device for separating crude coal liquefaction pitch tar and ash according to claim 7, characterized in that: The second protective tube (14) is provided with a worm (18), which meshes with the turbine (17). The end of the worm (18) away from the turbine (17) extends to the outside of the second protective tube (14) and is connected to a handle (19).