Blockage dredging device for slag falling pipe

Abstract

The invention relates to the technical field of gasification furnace slag falling, and discloses a slag falling pipe blockage dredging device which comprises an extension pipe section connected to the corner of a slag falling pipe and corresponding to and communicated with the part, on the upper side of the corner, of the slag falling pipe; the compressed air tank is connected with the tail end of the extension pipe section; the slag poking pipe slides along the inner side of the extension pipe section and the inner side of the slag falling pipe part corresponding to the upper side of the extension pipe section; the overturning baffle is hinged to the inner side of the slag poking pipe; the slag poking pipe internally provided with the overturning baffle is adopted, when the overturning baffle shields an airflow channel in the slag poking pipe, compressed air can drive the slag poking pipe to move, and the slag poking pipe moves to poke slag to achieve cleaning of solidified matter on the inner wall of the slag falling pipe; when the baffle plate part is turned over to shield the airflow channel in the slag poking pipe, compressed air can directly act on the blockages to quickly disperse the loose or semi-solidified blockages, so that the dredging of the slag falling pipe is realized.

Description

Technical Field

[0001] This invention relates to the field of slag discharge technology in gasifiers, and specifically to a device for unblocking slag discharge pipes. Background Technology

[0002] The ash discharge pipe of the gasifier is a key pipeline connecting the gasifier furnace and the ash removal system. Its main function is to safely and smoothly transport the ash, slag, and other waste products generated during the gasification reaction to subsequent processing equipment (such as ash coolers). Its operating status directly affects the continuous and stable operation of the gasifier. Once a blockage occurs, it may lead to poor ash removal, increased pressure, or even forced shutdown for maintenance.

[0003] Clogging of the gasifier ash discharge pipe is mainly caused by the inherent characteristics of the ash, including its melting state, particle shape, and composition. When the melting temperature of the ash is lower than its actual temperature inside the ash discharge pipe, the ash will be in a semi-molten or sticky state, resulting in a significant decrease in fluidity. This makes it very easy for the ash to adhere to the pipe wall and gradually accumulate and thicken. If the ash contains large lumps of ash formed from incomplete combustion (such as coke lumps), these lumps will accumulate beyond the effective flow cross-section of the ash discharge pipe, directly blocking the pipe. At the same time, if the ash is mixed with hard impurities, it will become the "core" for subsequent ash adhesion, causing the accumulation to continue to expand. In addition, some ash contains low-melting-point components, which easily form easily adhering eutectic materials, or the particles are too fine and the surface is rough, making it easier to adhere to the inner wall of the pipe, ultimately leading to blockage.

[0004] When the slag discharge pipe is blocked, the unblocking method can be selected according to the degree of blockage and the characteristics of the ash and slag: If it is a minor blockage (with some flow), a vibratory hammer can be used to vibrate the pipe wall to dislodge the loose ash and slag attached, or compressed air can be introduced to increase the power to push the ash and slag through; if it is a partial blockage (the flow cross section is greatly reduced), a steel rod or pneumatic pick can be inserted to break up large pieces of slag and the sticky slag shell; if it is completely blocked and conventional methods are ineffective, the furnace must be shut down and cooled before the pipe is partially dismantled and the internal blockage is manually removed.

[0005] Compressed airflow slag removal utilizes the powerful impact force generated by the release of compressed air to clear blockages inside the slag discharge pipe. It boasts advantages such as simple operation, excellent unblocking effect, and minimal damage to equipment. Examples include patent CN209857037U (a slag removal device for a circulating fluidized bed boiler) and patent CN217178542U (a slag pipe unblocking device). The core advantages of compressed airflow slag removal lie in its high efficiency and safety. It can quickly break through arched and semi-solidified blockages in the slag discharge pipe, with noticeable results after a single operation. Furthermore, the airflow impact is a flexible force, causing minimal wear on the inner wall of the equipment. It requires no chemical agents, neither contaminating the slag nor corroding the equipment, resulting in low maintenance costs over long-term use. However, its limitations are also apparent: it cannot handle hardened blockages. Hardened scale, especially solidified blockages on the inner wall of the slag discharge pipe, is difficult to clean completely. Because the compressed air exerts less force on the solidified material adhering to the inner wall of the slag discharge pipe after the airflow passes through the center, this solidified material accelerates the reformation of blockages, requiring frequent unblocking. After prolonged use, the area and thickness of the solidified material gradually increase, requiring mechanical or chemical means to shut down the furnace for cleaning. Summary of the Invention

[0006] The purpose of this invention is to solve at least one of the problems in the prior art mentioned above, and to provide a device for clearing blockages in slag discharge pipes.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A device for clearing blockages in a slag discharge pipe includes: The extension pipe section is connected to the corner of the slag discharge pipe, corresponding to and connected to the slag discharge pipe section above the corner. A compressed air tank is connected to the end of the extension pipe section; The slag-pumping pipe slides along the inner side of the extended pipe section and the inner side of the corresponding slag-falling pipe section above it. The flip-up baffle is hinged to the inside of the slag-pumping pipe.

[0008] Furthermore, the slag-plucking pipe slides against the inside of the extension pipe section and the slag-falling pipe; an airflow channel is formed inside the slag-plucking pipe, and the flipping baffle opens or closes the airflow channel by rotating.

[0009] Furthermore, a safety rope is connected to the outer end of the slag-clearing pipe, and the safety rope slides through the extension pipe section and is connected to a limit ring.

[0010] Furthermore, the inner end of the slag-removing pipe is provided with an inclined pipe opening.

[0011] Furthermore, the slag-reducing pipe is provided with a reducing ring inside, and the flipping baffle is hinged to the side of the reducing ring facing the outer end of the slag-reducing pipe.

[0012] Furthermore, the hinge of the flipping baffle is provided with a torsion spring that allows the flipping baffle to fit against the side of the reduced diameter ring.

[0013] Furthermore, the flip-up baffle is connected to an ear seat, and the end of the ear seat near the flip-up baffle is rotatably connected to the diameter reduction ring; the end of the ear seat away from the flip-up baffle is provided with an inclined surface, and the extension pipe section is threaded with an adjusting bolt, the inner end of the adjusting bolt abutting against the inclined surface.

[0014] Furthermore, the side wall of the slag-collecting pipe is provided with bolt holes for the adjustment bolts to pass through.

[0015] Furthermore, the reduced diameter ring is provided with a notch for the ear seat to rotate.

[0016] Furthermore, both the flipping baffle and the diameter reduction ring are provided with several air holes.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention employs a slag-clearing pipe with an internal flip-up baffle. When the flip-up baffle blocks the airflow channel inside the slag-clearing pipe, compressed air can drive the slag-clearing pipe to move, thus cleaning the solidified material on the inner wall of the slag-falling pipe. When the flip-up baffle partially blocks the airflow channel inside the slag-clearing pipe, compressed air can directly act on the blockage, quickly dispersing loose or semi-solidified blockages and clearing the slag-falling pipe. This improves the comprehensiveness and effectiveness of slag clearing, extends the clearing cycle, and can fully meet the slag-falling pipe clearing requirements of gasifiers, eliminating the reliance on mechanical or chemical methods for furnace shutdown and clearing. This invention restricts the movement of the slag-clearing pipe by using a safety rope and a limiting ring, which allows the slag-falling pipe to be cleared and unblocked in sections, reducing the difficulty of conveying. The slag-clearing pipe can also be pulled back by the safety rope to complete the reset operation. The slag-clearing pipe of the present invention is provided with an inclined pipe opening, which can effectively break up the solidified material on the inner wall of the slag-falling pipe, reduce the resistance and difficulty of clearing slag, and improve the comprehensiveness of unblocking and dredging when combined with the bent slag-falling pipe; and it is also conducive to passing through the corner of the slag-falling pipe smoothly, ensuring that the slag-clearing pipe slides smoothly and avoiding the slag-clearing pipe getting stuck. This invention enables the flipping of the baffle plate using a beveled lug and an adjusting bolt. When the adjusting bolt opens the airflow channel of the slag-clearing pipe, it simultaneously positions the slag-clearing pipe, preventing it from shifting with the airflow. The airflow can then directly act on the blockage in the center of the slag-falling pipe for pneumatic clearing. When the adjusting bolt releases the baffle plate, it closes the airflow channel of the slag-clearing pipe under the drive of a torsion spring. The adjusting bolt then releases the slag-clearing pipe, allowing it to move with the airflow to clean the solidified material on the inner wall of the slag-falling pipe. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the slag discharge pipe and its connection structure according to the present invention.

[0019] Figure 2 This is a side view of the slag discharge pipe and its connection structure according to the present invention.

[0020] Figure 3 This is a schematic diagram of the internal structure of the slag discharge pipe of the present invention.

[0021] Figure 4 This is a schematic diagram of the interior of the upper extension pipe section of the present invention.

[0022] Figure 5 This is a schematic diagram of the interior of the lower extension pipe of the present invention.

[0023] Figure 6 This is a schematic diagram of the slag discharge pipe and its extension section according to the present invention.

[0024] Figure 7 This is a three-dimensional schematic diagram of the slag-removing pipe and its connection structure according to the present invention.

[0025] Figure 8 This is a three-dimensional schematic diagram of the end structure of the slag-removing pipe of the present invention.

[0026] Figure 9 This is a schematic diagram of the internal structure of the slag-removing pipe of the present invention.

[0027] Figure 10 This is a schematic diagram of the slag-clearing pipe of the present invention without the flip-over baffle.

[0028] Figure 11 This is a three-dimensional schematic diagram of the flip-up baffle and its connection structure according to the present invention.

[0029] In the diagram: 1. Extension pipe section; 2. Gas pipe; 3. Compressed air tank; 4. Slag removal pipe; 5. Tilting baffle; 6. Safety rope; 7. Limiting ring; 8. Inclined pipe opening; 9. Reduction ring; 10. Air hole; 11. Ear seat; 12. Rotating shaft; 13. Torsion spring; 14. Notch; 15. Inclined surface; 16. Bolt hole; 17. Chamfer; 18. Adjusting bolt; 19. Rope hole; 20. Slag discharge pipe; 21. Gasifier; 22. Slag cooler; 23. Expansion joint; 24. Gate valve; 25. Solenoid valve. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention; that is, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] Specific embodiments of the slag pipe blockage clearing device provided by the present invention: Please see Figure 1-11The slag discharge pipe 20 is connected between the gasifier 21 and the slag cooler 22. In this embodiment, the slag discharge pipe 20 is connected to the lower side of the gasifier 21.

[0032] The slag discharge pipe 20 includes two vertical sections and an inclined section connecting the two vertical sections. The inclined section connects to the two vertical sections at two bends. The upper vertical section is connected to the lower side of the gasifier 21 and is connected in series with an expansion joint 23. The expansion joint 23 compensates for deformation caused by thermal expansion and contraction of the gasifier 21, ensuring the stability of the shape and connection of the slag discharge pipe 20. A slide valve 24 is connected between the lower vertical section and the inlet of the slag cooler 22, and the slide valve 24 is installed via a flange connection.

[0033] The upper vertical and inclined sections of the slag discharge pipe 20 are prone to blockage. In this embodiment, the slag discharge pipe 20 blockage clearing device includes an extension pipe section 1, a compressed air tank 3, a slag-pumping pipe 4, and a flipping baffle 5.

[0034] There are two extension pipe sections 1, one upper and one lower, connected to the two corners of the slag discharge pipe 20. The extension pipe section 1 corresponds to and is connected to the upper part of the slag discharge pipe 20 at each corner; that is, the upper extension pipe section 1 corresponds to the vertical section at the top of the slag discharge pipe 20, and the lower extension pipe section 1 corresponds to the inclined section of the slag discharge pipe 20. The inner diameter of the extension pipe section 1 is the same as the inner diameter of the slag discharge pipe 20.

[0035] Both extension pipe sections 1 are connected to air pipes 2 at their lower middle parts. The inner diameter of air pipe 2 is smaller than that of extension pipe section 1. The end of air pipe 2 is connected to the output pipe of compressed air tank 3 through a flange. Two compressed air tanks 3 are provided, and each is connected to the end of the two extension pipe sections 1 through air pipe 2.

[0036] A solenoid valve 25, preferably a solenoid pulse valve, is installed on the output pipe of the compressed air tank 3. The compressed air tank 3 contains high-pressure air and is connected to an air source. The solenoid pulse valve can release instantaneous compressed air into the extension pipe section 1, generating a strong impact force. Since the two extension pipe sections 1 correspond to the upper vertical section and inclined section of the slag discharge pipe 20, respectively, they can clear the blockage material in the upper vertical section and inclined section.

[0037] Loose and unconsolidated materials can be directly dispersed by compressed air flow. Compared with the traditional method of repeatedly poking slag with a handheld steel rod, this method has advantages such as simple operation, good unblocking effect, high safety, comprehensive and uniform action, and less damage to equipment. However, it is not effective in removing solidified materials from the inner wall of the slag discharge pipe 20. After the loose material in the center of the slag discharge pipe 20 is dispersed, the airflow can pass through, reducing the force of the airflow on the solidified material.

[0038] To remove the solidified material from the inner wall of the slag discharge pipe 20, ensure a regular and uniform slag discharge channel within the slag discharge pipe 20, extend the dredging cycle, and improve the dredging effect, in this embodiment, a slag-clearing pipe 4 is provided within each extension pipe section 1. An airflow channel is formed inside the slag-clearing pipe 4. When the slag-clearing pipe 4 is inside the extension pipe section 1, compressed air can pass through the airflow channel inside the slag-clearing pipe 4 and act on the blockage inside the slag discharge pipe 20, achieving conventional pneumatic cleaning and dredging. The inner diameter of the slag-clearing pipe 4 is smaller than the inner diameter of the slag discharge pipe 20, and the inner diameter of the slag-clearing pipe 4 is larger than the inner diameter of the air pipe 2. When compressed air directly clears the slag discharge pipe 20, the slag-clearing pipe 4 does not obstruct the flow of compressed air, ensuring normal and unobstructed pneumatic dredging.

[0039] The slag-clearing pipe 4 can slide along the inner side of the extension pipe section 1 and the inner side of the corresponding slag-falling pipe 20 above it. The slag-clearing pipe 4 slides against the inner side of the extension pipe section 1 and the slag-falling pipe 20. When the slag-clearing pipe 4 slides, it directly acts on the solidified material on the inner wall of the slag-falling pipe 20, forcing the solidified material to fall off and break from the inner wall of the slag-falling pipe 20. The slag-clearing pipe 4 on the inner side of the upper extension pipe section 1 slides through the upper vertical section to complete the removal of the solidified material on the inner wall of the upper vertical section. The slag-clearing pipe 4 on the inner side of the lower extension pipe section 1 slides through the inclined section to complete the removal of the solidified material on the inner wall of the inclined section.

[0040] The tilting baffle 5 is hinged to the inside of the slag-clearing pipe 4. The tilting baffle 5 opens or closes the airflow channel inside the slag-clearing pipe 4 by rotating. When the airflow channel is open, conventional pneumatic dredging is performed; when the airflow channel is closed, compressed air can drive the slag-clearing pipe 4 to move, completing the removal of solidified material on the inner wall of the slag-falling pipe 20. While realizing the movement drive of the slag-clearing pipe 4, there is no need to install power equipment. The compressed air tank 3 is directly used to move the slag-clearing pipe 4 to clean and dredge the slag.

[0041] A safety rope 6 is connected to the outer end of the slag-clearing pipe 4. The safety rope 6 slides through the extension pipe section 1 and is connected to a limit ring 7. The lower end of the extension pipe section 1 has an end wall with a rope hole 19 for the safety rope 6 to slide through. In this embodiment, each slag-clearing pipe 4 is symmetrically connected to two safety ropes 6, and two rope holes 19 are symmetrically provided on the end wall of the extension pipe section 1. Since the slag-falling pipe 20, the extension pipe section 1, and the slag-clearing pipe 4 are all pipes with circular cross-sections, the two safety ropes 6 and the rope holes 19 can ensure the accurate position of the slag-clearing pipe 4 within the extension pipe section 1 and prevent the slag-clearing pipe 4 from deflecting or becoming misaligned.

[0042] The limiting ring 7 is connected to the end of the safety rope 6, preferably a steel wire rope. The safety rope 6 can pull the slag-clearing pipe 4 back. If the upper slag-clearing pipe 4 moves to the upper side of the expansion joint 23, or the lower slag-clearing pipe 4 moves to the upper end of the inclined section, the limiting ring 7 moves to the outside of the extension pipe section 1 at the above positions to prevent the slag-clearing pipe 4 from moving upward. This ensures that the slag-clearing pipe 4 is thoroughly cleaned and also limits the upward position of the slag-clearing pipe 4.

[0043] The inner end, i.e., the upper end, of the slag-clearing pipe 4 is provided with an inclined pipe opening 8. Specifically, the inclined pipe opening 8 causes the length of the slag-clearing pipe 4 to vary in different parts. The longer part of the upper slag-clearing pipe 4 is attached to the side wall of the upper vertical section away from the inclined section, while the longer part of the lower slag-clearing pipe 4 is attached to the upper side wall of the inclined section. Through the inclined pipe opening 8, the solidified material on the inner wall of the slag-falling pipe 20 can be effectively broken up and pushed, reducing resistance and slag-clearing difficulty. In conjunction with the curved slag-falling pipe 20, it improves the comprehensiveness of clearing blockages and unblocking. It also facilitates smooth passage through the corner of the slag-falling pipe 20, i.e., through the corner of the starting position, and prevents the lower slag-clearing pipe 4 from entering the upper vertical section of the slag-falling pipe 20, ensuring smooth sliding of the slag-clearing pipe 4 and preventing the slag-clearing pipe 4 from getting stuck inside the corner of the slag-falling pipe 20.

[0044] In order for the flip baffle 5 to achieve at least ninety degrees of flipping within the circular slag-pumping pipe 4, the flip baffle 5 will not obstruct the airflow after the airflow channel of the slag-pumping pipe 4 is opened. The slag-pumping pipe 4 is provided with a diameter reduction ring 9, which is close to the end of the inclined pipe opening 8. The flip baffle 5 is hinged to the side of the diameter reduction ring 9 facing the outer end of the slag-pumping pipe 4, that is, the lower side of the slag-pumping pipe 4.

[0045] The inner ring of the narrowing ring 9 has ventilation holes, the area of ​​which is larger than the cross-sectional area of ​​the inner side of the air pipe 2, thereby reducing the impact of the narrowing ring 9 on the airflow. The outer ring of the narrowing ring 9 is circumferentially connected to the inner wall of the slag-removing pipe 4. The flipping baffle 5 flips under the narrowing ring 9. When the flipping baffle 5 is attached to the lower side of the narrowing ring 9, it blocks the ventilation holes inside the narrowing ring 9, thus blocking and closing the airflow channel; when the flipping baffle 5 is flipped to a position close to ninety degrees with the narrowing ring 9, the airflow channel is unobstructed and in an open state, and will not be pushed closed by the airflow.

[0046] Both the tilting baffle 5 and the reducing ring 9 are equipped with several air holes 10. These air holes 10 are used for ventilation. The tilting baffle 5 seals the airflow channel within the slag-clearing pipe 4. As the slag-clearing pipe 4 moves with the airflow impact, impacting the solidified material on the inner wall of the slag-falling pipe 20, the air holes 10 are used to relieve pressure, preventing continuous high pressure and damage to the pipe's interior. Simultaneously, in conjunction with the compressed air tank 3 and the electromagnetic pulse valve, the slag-clearing pipe 4 receives intermittent pulse impacts instead of continuous pressure. The intermittent pulse impacts from the slag-clearing pipe 4 act intermittently on the solidified material on the inner wall of the slag-falling pipe 20, thus removing the solidified material. The air holes 10 are designed as micropores with an inner diameter no greater than two millimeters to reduce the ingress of fine ash.

[0047] To ensure that the flip-up baffle 5 is in a normally closed state, a torsion spring 13 is provided at the hinge of the flip-up baffle 5 to allow the flip-up baffle 5 to fit against the side of the reducing ring 9. Specifically, the flip-up baffle 5 is connected to an ear seat 11, and a rotating shaft 12 is provided at one end of the ear seat 11 near the flip-up baffle 5. A bearing seat supporting the rotation of the rotating shaft 12 is provided on the lower side of the reducing ring 9. The flip-up baffle 5 is rotatably connected to the bearing seat on the lower side of the reducing ring 9 through the ear seat 11 and the rotating shaft 12. The torsion spring 13 is located outside the rotating shaft 12, and its two ends are connected to the bearing seat and the ear seat 11 respectively, so that the flip-up baffle 5 fits against the lower side of the reducing ring 9. To ensure that the flip-up baffle 5 can rotate at least 90 degrees, in this embodiment, the flip-up baffle 5 is a circular plate with two opposite sides cut out into planes. The ventilation hole on the inner side of the reducing ring 9 is similar in shape to the flip-up baffle 5, but smaller in size.

[0048] The reducing ring 9 has a notch 14 for the ear seat 11 to rotate. During the flipping process of the flipping baffle 5, the ear seat 11 rotates synchronously. Since the reducing ring 9 is located on the upper part of the ear seat 11, the notch 14 can avoid obstructing the rotation of the ear seat 11. The end of the ear seat 11 near the flipping baffle 5 is hinged to the reducing ring 9, so that the end of the ear seat 11 away from the flipping baffle 5 rotates through the notch 14.

[0049] The ear seat 11 has a bevel 15 at the end away from the tilting baffle 5. An adjusting bolt 18 is threaded through the extension pipe section 1. The extension pipe section 1 has a threaded hole for the adjusting bolt 18 to pass through, and the inner end of the adjusting bolt 18 abuts against the bevel 15. The side wall of the slag-clearing pipe 4 has a bolt hole 16 for the adjusting bolt 18 to pass through. The bolt hole 16 is a square hole, allowing the adjusting bolt 18 to pass through while maintaining a gap between the bolt hole 16 and the adjusting bolt 18. The position of the bolt hole 16 corresponds to the ear seat 11 and its bevel 15 so that the adjusting bolt 18 can engage with the bevel 15. The outer edge of the bolt hole 16 has a chamfer 17 so that the adjusting bolt 18 on the extension pipe section 1 can pass through and enter. When the slag-clearing pipe 4 is located inside the extension pipe section 1, two safety ropes 6 ensure that the bolt hole 16 aligns with the adjusting bolt 18.

[0050] The rotating shaft 12 corresponds to the inner side of the first end of the inclined plane 15, and the adjusting bolt 18 corresponds to the surface of the second end of the inclined plane 15. In this way, by rotating the adjusting bolt 18, the adjusting bolt 18 extends and retracts under the thread support of the extension pipe section 1. When the adjusting bolt 18 moves into the extension pipe section 1, it acts on the inclined plane 15 to make the ear seat 11 and the flipping baffle 5 overcome the resistance of the torsion spring 13 and flip, thereby realizing the flipping baffle 5 to open the airflow channel inside the slag-clearing pipe 4. When the airflow channel is open, the airflow passes through the slag-clearing pipe 4 and acts on the blockage inside the slag-falling pipe 20 to perform conventional pneumatic clearing. The adjusting bolt 18 passes through the bolt hole 16 to position the slag-clearing pipe 4, further ensuring the accurate position of the slag-clearing pipe 4. The adjusting bolt 18 moves outward from the extension pipe section 1 until it separates from the inclined surface 15 of the lug 11. The torsion spring 13 resets the flip baffle 5, which then fits against the lower 9 side of the reducing ring to seal the airflow channel. The gasifier 21 is in normal operation and does not require unblocking. The end of the adjusting bolt 18 extends into the bolt hole 16, ensuring the stable position of the slag-clearing pipe 4. When airflow is needed to drive the slag-clearing pipe 4 to move and clear the blockage, the adjusting bolt 18 is moved further outward until it exits the bolt hole 16 of the slag-clearing pipe 4. The end of the adjusting bolt 18 only contacts the side wall of the extension pipe section 1, and the adjusting bolt 18 no longer restricts the movement of the slag-clearing pipe 4.

[0051] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for clearing blockages in a slag discharge pipe, characterized in that, include: The extension pipe section (1) is connected to the corner of the slag discharge pipe (20), and corresponds to and is connected to the upper part of the slag discharge pipe (20) at the corner; Compressed air tank (3) is connected to the end of the extension pipe section (1); The slag-pumping pipe (4) slides along the inner side of the extension pipe section (1) and the inner side of the corresponding slag-falling pipe (20) above it; The flip-up baffle (5) is hinged to the inside of the slag-pumping pipe (4).

2. The slag pipe blockage clearing device according to claim 1, characterized in that, The slag-pumping pipe (4) slides against the inside of the extension pipe section (1) and the slag-falling pipe (20); an airflow channel is formed inside the slag-pumping pipe (4), and the flipping baffle (5) opens or closes the airflow channel by rotating.

3. The slag pipe blockage clearing device according to claim 1, characterized in that, The outer end of the slag-removing pipe (4) is connected to a safety rope (6), which slides through the extension pipe section (1) and is connected to a limit ring (7).

4. The slag pipe blockage clearing device according to claim 1, characterized in that, The inner end of the slag-removing pipe (4) is provided with an inclined pipe opening (8).

5. The slag pipe blockage clearing device according to claim 1, characterized in that, The slag-reducing pipe (4) is provided with a reducing ring (9), and the flipping baffle (5) is hinged to the side of the reducing ring (9) facing the outer end of the slag-reducing pipe (4).

6. The slag pipe blockage clearing device according to claim 5, characterized in that, The hinge of the flip baffle (5) is provided with a torsion spring (13) that makes the flip baffle (5) fit against the side of the reduced diameter ring (9).

7. The slag pipe blockage clearing device according to claim 6, characterized in that, The flip baffle (5) is connected to an ear seat (11), and the ear seat (11) is rotatably connected to the reducing ring (9) at one end near the flip baffle (5); the ear seat (11) is provided with an inclined surface (15) at one end away from the flip baffle (5), and the extension pipe section (1) is threaded with an adjusting bolt (18), the inner end of the adjusting bolt (18) abutting against the inclined surface (15).

8. The slag pipe blockage clearing device according to claim 7, characterized in that, The side wall of the slag-pumping pipe (4) is provided with bolt holes (16) for the adjusting bolts (18) to pass through.

9. The slag pipe blockage clearing device according to claim 7, characterized in that, The reduced diameter ring (9) has a notch (14) for the ear seat (11) to rotate.

10. The slag pipe blockage clearing device according to claim 5, characterized in that, Both the flip baffle (5) and the diameter reduction ring (9) are provided with a number of air holes (10).

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