A leakage-proof device for a slag cooler inlet

Abstract

The utility model discloses a kind of cold slag machine import leakage prevention devices, it is related to cold slag machine technical field, and it includes: feed pipe, the top of the feed pipe is respectively welded with inner labyrinth ring and outer labyrinth ring, the outside of the inner labyrinth ring is equipped with anti-return material bucket sealing plate, the top of the anti-return material bucket sealing plate is equipped with base, the side of the base is equipped with cold slag machine end plate, the outside of the outer labyrinth ring is equipped with labyrinth ring outer cover, ceramic fibre packing is filled in the gap between the labyrinth ring outer cover and anti-return material bucket sealing plate, the inner labyrinth ring is located the outside of feed pipe.This cold slag machine import leakage prevention device is based on conventional sealing device, newly added two labyrinth rings, ceramic fibre packing is also filled around outer labyrinth ring, increased from original one sealing procedure to three sealing procedures, so it can greatly improve the sealing effect of cold slag machine feed inlet, so as to obviously improve the leakage problem of cold slag machine feed pipe.

Description

Technical Field

[0001] This utility model relates to the field of cold slag machine technology, specifically to a leak-proof device for the inlet of a cold slag machine. Background Technology

[0002] The slag cooler is an important piece of equipment used in circulating fluidized bed boilers to cool coal slag. Since the feed pipe is fixed, there will be a certain gap between the rotating slag cooler and the feed pipe. As the slag cooler operates, the high-temperature coal slag inside can easily leak out through the gap.

[0003] The existing cold slag machine inlet sealing device only has an anti-backflow bucket, which prevents the coal slag that is about to leak out from the gap from falling into the anti-backflow bucket and returning to the inside of the cold slag machine. However, the effect is not ideal. A large amount of fine coal slag will still leak out through the gap, causing dust pollution and even damaging the conveyor belt below. Utility Model Content

[0004] The purpose of this utility model is to provide a leak-proof device for the inlet of a slag cooler, so as to solve the problem mentioned in the background art that the sealing effect of the inlet of the currently used slag cooler is not good and that slag leakage is easy to occur.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof device for the inlet of a cold slag machine, comprising: a feed pipe, wherein an inner labyrinth ring and an outer labyrinth ring are welded and installed on the top of the feed pipe respectively, and an anti-backflow barrel sealing plate is installed on the outer side of the inner labyrinth ring;

[0006] A base is installed on the top of the anti-backflow barrel sealing plate; a cold slag machine end plate is installed on one side of the base; a labyrinth ring cover is installed on the outside of the outer labyrinth ring; and ceramic fiber packing is filled in the gap between the labyrinth ring cover and the anti-backflow barrel sealing plate.

[0007] Preferably, the inner labyrinth ring is located outside the feed pipe, and the inner labyrinth ring and the feed pipe are fitted with a clearance fit.

[0008] Preferably, the outer labyrinth ring is located between the anti-backflow barrel sealing plate and the labyrinth ring outer cover, and the outer labyrinth ring and the anti-backflow barrel sealing plate are fitted with a clearance fit.

[0009] Preferably, guide posts are installed on one side of the end plate of the cold slag machine and on one side of the anti-backflow hopper sealing plate.

[0010] Preferably, a fixing block is installed on one side of both the base and the outer cover of the maze ring. A groove is provided inside the fixing block, and a movable spring is installed inside the groove. A guide block that penetrates the groove is installed on one side of the movable spring. A movable block is installed on the side of the guide block away from the fixing block, and a wedge block is installed on one side of the movable block.

[0011] Preferably, a movable groove is provided on one side of the movable block, a connecting shaft is connected inside the movable groove, and a connecting rod is installed on one side of the connecting shaft.

[0012] Preferably, the end of the connecting rod away from the connecting shaft is connected to a turntable via a rotating shaft, and a rotating shaft is connected through the middle of the turntable.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The anti-leakage device at the inlet of the slag cooler, through the cooperation of the inner and outer labyrinth rings, can provide multiple layers of protection for the slag, making it difficult for the slag to leak out from the gaps in the feed pipe, thus increasing the effectiveness of slag leakage prevention.

[0015] 2. The leak-proof device imported into the slag cooler can be easily removed from the slag cooler by simply rotating the rotating shaft when maintenance is required. This causes the turntable and connecting rod to move the movable block, which in turn moves the wedge block out of the guide column slot. Similarly, rotating the rotating shaft on one side of the base allows the entire sealing device and feed pipe to be easily removed from the slag cooler. Therefore, it has the advantage of low maintenance cost. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the main sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the three-dimensional exploded structure of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the guide column of this utility model;

[0020] Figure 5 This is a three-dimensional cross-sectional view of the fixing block of this utility model.

[0021] In the diagram: 1. Feed pipe; 2. Inner labyrinth ring; 3. Outer labyrinth ring; 4. Anti-backflow barrel sealing plate; 5. Base; 6. Cold slag machine end plate; 7. Labyrinth ring outer cover; 8. Ceramic fiber packing; 9. Guide column; 10. Fixed block; 11. Movable spring; 12. Guide block; 13. Movable block; 14. Wedge block; 15. Connecting shaft; 16. Connecting rod; 17. Turntable; 18. Rotating shaft. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-3 This utility model provides a technical solution: a leak-proof device for the inlet of a cold slag machine, comprising: a feed pipe 1, an inner labyrinth ring 2 and an outer labyrinth ring 3 respectively welded to the top of the feed pipe 1, and an anti-backflow barrel sealing plate 4 installed on the outer side of the inner labyrinth ring 2;

[0024] exist Figure 2 In the middle, a base 5 is installed on the top of the anti-backflow barrel sealing plate 4; a cold slag machine end plate 6 is installed on one side of the base 5; a labyrinth ring outer cover 7 is installed on the outside of the outer labyrinth ring 3; and ceramic fiber packing 8 is filled in the gap between the labyrinth ring outer cover 7 and the anti-backflow barrel sealing plate 4.

[0025] The anti-leakage device imported into the slag cooler, when the slag cooler is running, the inner labyrinth ring 2 acts as the first sealing structure to prevent slag from passing through. This structure not only blocks the slag from passing through, but also greatly reduces the speed at which the slag passes through, making it more difficult for the slag to pass through the inside of the anti-backflow bucket sealing plate 4. Even if a small portion of the slag passes through the anti-backflow bucket sealing plate 4, the sealing structure formed by the outer labyrinth ring 3, combined with the internally filled ceramic fiber packing 8, can block all the slag, thereby preventing slag leakage.

[0026] exist Figure 2 In the middle, the inner labyrinth ring 2 is located outside the feed pipe 1, and the inner labyrinth ring 2 and the feed pipe 1 are fitted with a clearance fit. The outer labyrinth ring 3 is located between the anti-backflow barrel sealing plate 4 and the labyrinth ring outer cover 7, and the outer labyrinth ring 3 and the anti-backflow barrel sealing plate 4 are fitted with a clearance fit.

[0027] The leak-proof device at the inlet of the cold slag machine can enhance the leak-proof effect of the feed pipe 1 through the inner labyrinth ring 2 and the outer labyrinth ring 3, thereby achieving a three-layer barrier function.

[0028] exist Figure 1 , Figure 4 and Figure 5In the middle, guide columns 9 are installed on one side of the end plate 6 of the cold slag machine and one side of the anti-backflow hopper sealing plate 4. Fixing blocks 10 are installed on one side of the base 5 and the labyrinth ring outer cover 7. The inside of the fixing block 10 is provided with a groove, and a movable spring 11 is installed inside the groove. A guide block 12 that penetrates the groove is installed on one side of the movable spring 11. A movable block 13 is installed on the side of the guide block 12 away from the fixing block 10. A wedge block 14 is installed on one side of the movable block 13.

[0029] When installing the anti-backflow barrel sealing plate 4 and the labyrinth ring outer cover 7, the anti-backflow barrel sealing plate 4 and the labyrinth ring outer cover 7 of the cold slag machine are installed by simply passing the guide post 9 through the through hole of the anti-backflow barrel sealing plate 4 and the labyrinth ring outer cover 7. At the same time, the guide post 9 will squeeze the inclined surface of the wedge block 14, causing the wedge block 14 to shrink into the interior of the fixed block 10 through the guide block 12, and squeeze the movable spring 11 in the groove of the fixed block 10.

[0030] When the wedge block 14 is aligned with the groove on the side of the guide post 9, the movable spring 11 will push the guide block 12 and the movable block 13 to reset, and the movable block 13 will drive the wedge block 14 to engage with the groove on the side of the guide post 9. Through the cooperation of the wedge block 14 and the guide post 9, the anti-backflow barrel sealing plate 4 and the labyrinth ring outer cover 7 can be fixed.

[0031] exist Figure 4 and Figure 5 In the middle, a movable groove is provided on one side of the movable block 13, and a connecting shaft 15 is connected inside the movable groove. A connecting rod 16 is installed on one side of the connecting shaft 15.

[0032] The anti-leakage device at the inlet of the cold slag machine allows the connecting rod 16 to rotate via the connecting shaft 15 in the middle of the movable groove on the side of the movable block 13. Therefore, when the other end of the connecting rod 16 rotates via the turntable 17, the connecting rod 16 will rotate via the connecting shaft 15 between it and the movable block 13, thereby pushing the movable block 13 to move.

[0033] exist Figure 5 In the middle, the end of the connecting rod 16 away from the connecting shaft 15 is connected to the turntable 17 via a rotating shaft, and the middle of the turntable 17 is connected to the rotating shaft 18.

[0034] The anti-leakage device imported into the cold slag machine can rotate the rotating shaft 18 to drive the turntable 17 to rotate. When the turntable 17 rotates, it will drive the connecting rod 16 to rotate. Then, in conjunction with the connecting shaft 15, it will push the two sets of movable blocks 13 to move to both sides. The movement of the movable blocks 13 to both sides will drive the wedge block 14 to move out of the groove of the guide column 9. Without the limiting effect of the wedge block 14 on the guide column 9, the anti-backflow barrel sealing plate 4 and the labyrinth ring outer cover 7 can be removed for maintenance.

[0035] In summary, the anti-leakage device for the cold slag machine inlet, when in use, adds an inner labyrinth ring 2 and an outer labyrinth ring 3 to the original sealing structure of the cold slag machine feed pipe 1, thus forming a three-layer anti-leakage structure. This allows the slag to be better blocked inside the anti-backflow bucket sealing plate 4 and the labyrinth ring outer cover 7, resulting in a very good anti-leakage effect. This is the characteristic of the use of the anti-leakage device for the cold slag machine inlet. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments 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 leak-proof device for the inlet of a slag cooler, comprising: The feed pipe (1) is characterized in that an inner labyrinth ring (2) and an outer labyrinth ring (3) are welded and installed on the top of the feed pipe (1), and an anti-backflow barrel sealing plate (4) is installed on the outer side of the inner labyrinth ring (2). A base (5) is installed on the top of the anti-backflow barrel sealing plate (4), a cold slag machine end plate (6) is installed on one side of the base (5), a labyrinth ring cover (7) is installed on the outside of the outer labyrinth ring (3), and ceramic fiber packing (8) is filled in the gap between the labyrinth ring cover (7) and the anti-backflow barrel sealing plate (4).

2. The anti-leakage device for the inlet of a slag cooler according to claim 1, characterized in that: The inner labyrinth ring (2) is located outside the feed pipe (1), and the inner labyrinth ring (2) and the feed pipe (1) are fitted with a clearance fit.

3. The anti-leakage device for the inlet of a slag cooler according to claim 1, characterized in that: The outer labyrinth ring (3) is located between the anti-backflow barrel sealing plate (4) and the labyrinth ring outer cover (7), and the outer labyrinth ring (3) and the anti-backflow barrel sealing plate (4) are fitted with a clearance fit.

4. The anti-leakage device for the inlet of a slag cooler according to claim 1, characterized in that: Guide posts (9) are installed on one side of the end plate (6) of the slag cooler and on one side of the anti-backflow barrel sealing plate (4).

5. The anti-leakage device for the inlet of a slag cooler according to claim 1, characterized in that: A fixing block (10) is installed on one side of both the base (5) and the outer cover (7) of the maze ring. A groove is provided inside the fixing block (10). A movable spring (11) is installed inside the groove. A guide block (12) that penetrates the groove is installed on one side of the movable spring (11). A movable block (13) is installed on the side of the guide block (12) away from the fixing block (10). A wedge block (14) is installed on one side of the movable block (13).

6. The anti-leakage device for the inlet of a slag cooler according to claim 5, characterized in that: The movable block (13) has a movable groove on one side, and a connecting shaft (15) is connected inside the movable groove. A connecting rod (16) is installed on one side of the connecting shaft (15).

7. The anti-leakage device for the inlet of a slag cooler according to claim 6, characterized in that: The end of the connecting rod (16) away from the connecting shaft (15) is connected to a turntable (17) via a rotating shaft, and a rotating shaft (18) is connected through the middle of the turntable (17).

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