Anti-jamming device for star-shaped cinder valve of dust removal system

Abstract

The utility model relates to an anti-jamming device for a star-shaped cinder valve of a dust removal system, and relates to the technical field of dust removal systems. The device comprises an ash bin, a gate valve and a star-shaped ash discharging valve which are sequentially arranged from top to bottom, a pup joint is arranged between the gate valve and the star-shaped ash discharging valve, the pup joint is used for communicating the gate valve and the star-shaped ash discharging valve, and the pup joint is connected with the gate valve and the star-shaped ash discharging valve through fasteners. The star-shaped cinder valve has the effects that the disassembly convenience of the star-shaped cinder valve during blockage is improved, and the service life of the star-shaped cinder valve and the service life of the gate valve are prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of dust removal systems, and in particular to an anti-jamming device for a star-shaped ash discharge valve of a dust removal system. Background Art

[0002] The blast furnace dust removal system is a crucial link in the blast furnace production process. Its main function is to remove harmful substances such as dust, soot, and sulfides in the blast furnace gas to ensure the cleanliness of the gas and reduce environmental pollution; the tuyere dust removal and bunker dust removal are important components of the blast furnace dust removal system. In actual production, the generated flue gas dust particles enter the dust removal system through the dust suction pipeline for filtration and purification to ensure the cleanliness of the blast furnace production environment, protect the physical health of the staff, and prevent dust particles from causing harm to the staff. The dust particles generated after being purified by the dust removal system will be sucked into the dust suction tank truck through the ash discharge valve for recycling and treatment; however, in the actual production process, large pieces of dust or sundries will be sucked into the dust removal pipeline and enter the ash bunker. When the ash discharge valve is opened to discharge ash, the large pieces of dust or sundries will block the ash discharge valve, affecting the ash discharge of the ash bunker. Moreover, due to the too-close installation position of the gate valve and the ash discharge valve, when the ash discharge valve is jammed, the gate valve cannot be tightly closed, damaging the dust removal cloth bag of the ash bunker. When the star-shaped ash discharge valve is jammed, it is necessary to remove the entire ash discharge valve, which is difficult, time-consuming, and laborious, and has a significant impact on the service life of the valve, so it needs to be improved. Summary of the Utility Model

[0003] In order to improve the convenience of disassembling the star-shaped ash discharge valve when it is blocked and extend the service life of the star-shaped ash discharge valve and the gate valve, the present application provides an anti-jamming device for a star-shaped ash discharge valve of a dust removal system.

[0004] An anti-jamming device for a star-shaped ash discharge valve of a dust removal system provided by the present application adopts the following technical solution:

[0005] An anti-jamming device for a star-shaped ash discharge valve of a dust removal system includes an ash bunker, a gate valve, and a star-shaped ash discharge valve arranged in sequence from top to bottom. A short pipe is arranged between the gate valve and the star-shaped ash discharge valve. The short pipe is used to connect the gate valve and the star-shaped ash discharge valve, and the short pipe is connected to the gate valve and the star-shaped ash discharge valve through fasteners.

[0006] By adopting the above technical solution, after installing a short pipe between the star-shaped ash discharge valve and the gate valve, only need the staff to regularly clean and check to reduce the situation of large pieces of dust or sundries blocking the ash discharge valve, improving the problem that the original ash discharge valve and the gate valve are too close in position, and when the sundries block the ash discharge valve, it is difficult to tightly close the gate valve, and even damage the dust removal cloth bag of the ash bunker. It improves the service life of the ash discharge valve and the gate valve, reduces the operation risk, and reduces the maintenance workload.

[0007] Optionally, a maintenance opening is provided on the short - circuit side wall, a maintenance door is arranged at the maintenance opening, and a plurality of fixing bolts are arranged on the maintenance door.

[0008] By adopting the above - mentioned technical solution, the provision of the maintenance opening facilitates cleaning the inside of the short - circuit when the star - type ash discharge valve is jammed. By removing the maintenance door, it is then possible to dredge the jammed part without disassembling the star - type ash discharge valve, improving the convenience of maintenance.

[0009] Optionally, a handle is arranged on the outer wall of the maintenance door.

[0010] By adopting the above - mentioned technical solution, the provision of the handle facilitates the staff to hold it after disassembling the maintenance door, improving the convenience of disassembling the maintenance door.

[0011] Optionally, one end of the ash bin close to the slide gate valve is arranged in a funnel shape.

[0012] By adopting the above - mentioned technical solution, setting the bottom end of the ash bin in a funnel shape facilitates the dust in the ash bin to flow smoothly towards the slide gate valve, effectively preventing excessive dust accumulation in the ash bin, dust caking into large pieces and being unable to pass through the slide gate valve smoothly, thereby causing the problem of slide gate valve blockage, and further reducing the probability of the dust removal system being jammed.

[0013] Optionally, a connecting sleeve is arranged at one end of the ash bin close to the slide gate valve. A locking ring is rotatably connected to the outer wall of the connecting sleeve. A sleeve pipe is arranged at the top end of the slide gate valve, and the sleeve pipe is sleeved on the outer wall of the connecting sleeve. A locking groove is arranged on the inner wall of the locking ring, and the outer wall of the sleeve pipe is threadedly connected to the inner wall of the locking groove.

[0014] By adopting the above - mentioned technical solution, the provision of the connecting sleeve, the locking ring and the sleeve pipe enables the slide gate valve and the ash bin to form a detachable connection form, so that the staff can quickly disassemble the slide gate valve when it fails, and there is no need to remove components such as the short - circuit and the star - type ash discharge valve below the slide gate valve, improving the convenience of maintenance.

[0015] Optionally, a hidden groove is arranged on the outer wall of the connecting sleeve. A locking piece is rotatably connected in the hidden groove. A locking hole is arranged on the top wall of the locking ring. A locking member is arranged on the locking ring, and the locking member passes through the locking piece and is connected to the locking hole.

[0016] By adopting the above - mentioned technical solution, when the locking ring and the sleeve pipe are connected, rotate the locking piece to abut against the top wall of the locking ring. Through the locking member, the connecting sleeve, the locking ring and the locking piece can be positioned, thereby preventing the locking ring from rotating to ensure the connection stability of the slide gate valve.

[0017] Optionally, a scraper conveyor is arranged below the star - type ash discharge valve.

[0018] By adopting the above technical solution, a scraper conveyor is arranged to convey the dust in the rotary air lock valve towards the ash suction tank truck, thereby effectively avoiding the problem of excessive dust accumulation and blockage at the outlet of the rotary air lock valve, improving the dust removal efficiency, and further reducing the probability of the rotary air lock valve being stuck.

[0019] Optionally, a dust-proof cover is arranged at one end of the rotary air lock valve close to the scraper conveyor.

[0020] By adopting the above technical solution, setting the dust-proof cover enables the dust to be isolated from the outside when it falls into the scraper conveyor, thereby reducing the problem of random dispersion of dust caused by external air flow, and ensuring the stable conveyance of dust.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. After installing a short connection between the rotary air lock valve and the flap valve, only regular cleaning and inspection by the staff are required to reduce the situation of blockage of the ash discharge valve by large dust or sundries, improving the problem that the original positions of the ash discharge valve and the flap valve are too close, and when the sundries block the ash discharge valve, it is difficult to tightly close the flap valve, and even the ash bin cloth bag is stuck and damaged, improving the service life of the ash discharge valve and the flap valve, reducing the operation risk, and reducing the maintenance workload;

[0023] 2. When the ash discharge valve is blocked, the inspection door at the short connection can also be opened to clean the blockage and protect the stable operation of the rotary air lock valve. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of a device for preventing the rotary air lock valve of a dust removal system from being stuck in an embodiment of the present application.

[0025] Figure 2 It is a cross-sectional view of the connecting sleeve in an embodiment of the present application.

[0026] Description of the reference numerals: 1, ash bin; 11, connecting sleeve; 12, locking ring; 13, locking groove; 14, hidden groove; 15, locking piece; 16, locking hole; 17, locking member; 2, flap valve; 21, sleeve pipe; 3, rotary air lock valve; 4, short connection; 41, inspection port; 42, inspection door; 43, fixing bolt; 44, handle; 5, fastener; 6, scraper conveyor; 7, dust-proof cover. Detailed Description of the Embodiment

[0027] The following is a further detailed description of the present application in conjunction with the attached Figure 1-2 drawings.

[0028] An embodiment of the present application discloses a device for preventing the rotary air lock valve of a dust removal system from being stuck. Refer to Figure 1 andFigure 2 , including a ash bin 1, a slide gate valve 2 and a rotary air lock valve 3 arranged successively from top to bottom. The bottom end of the ash bin 1 is funnel-shaped so that the dust in the ash bin 1 can move smoothly. A connecting sleeve 11 is arranged at the outlet of the ash bin 1. The slide gate valve 2 is communicated with the connecting sleeve 11. A sleeve pipe 21 is formed at the top end of the slide gate valve 2. The sleeve pipe 21 is sleeved on the outer wall of the connecting sleeve 11. A locking ring 12 is rotatably connected to the outer wall of the connecting sleeve 11. The inner wall of the locking ring 12 is threadedly connected to the outer wall of the connecting sleeve 11. By rotating the locking ring 12, the locking ring 12 can be moved along the direction of the connecting sleeve 11. A locking groove 13 for inserting the sleeve pipe 21 is formed in the inner wall of the bottom end of the locking ring 12. The outer wall of the sleeve pipe 21 abuts against the inner wall of the locking groove 13. An external thread is formed on the outer wall of the sleeve pipe 21, and an internal thread is formed on the inner wall of the locking groove 13. Thus, a threaded connection is formed between the locking ring 12 and the sleeve pipe 21. By rotating the locking ring 12, the sleeve pipe 21 and the slide gate valve 2 can be stably connected to the connecting sleeve 11, and it is also convenient for disassembly.

[0029] Refer to Figure 1 and Figure 2 , a plurality of hidden grooves 14 are formed in the outer wall of the connecting sleeve 11. The hidden grooves 14 are arranged along the length direction of the connecting sleeve 11. A locking piece 15 is rotatably connected in the hidden groove 14. After the locking ring 12 completes the connection of the sleeve pipe 21, the locking piece 15 can be rotated to abut against the top wall of the locking ring 12. A locking member 17 is arranged on the locking ring 12. In this embodiment, the locking member 17 is a bolt. A locking hole 16 is formed in the top wall of the locking ring 12. The locking member 17 passes through the locking piece 15 and is inserted into the locking hole 16 and is threadedly connected to the inner wall of the locking hole 16 to maintain the stability of the locking ring 12 and prevent the locking ring 12 from loosening and self-rotating, resulting in the problem that the slide gate valve 2 falls off from the connecting sleeve 11.

[0030] Refer to Figure 1 , a short joint 4 is arranged between the rotary air lock valve 3 and the slide gate valve 2. The short joint 4 is used to connect the slide gate valve 2 and the rotary air lock valve 3. The short joint 4 is detachably connected between the rotary air lock valve 3 and the slide gate valve 2 through a fastener 5. In this embodiment, the fastener 5 is a bolt, so that the staff can regularly remove the short joint 4; An inspection port 41 is formed in the outer wall of the short joint 4. An inspection door 42 is arranged at the inspection port 41. A plurality of fixing bolts 43 are arranged on the inspection door 42 to connect the inspection door 42 to the short joint 4. A handle 44 is arranged on the outer wall of the inspection door 42, which is convenient for the convenient disassembly of the inspection door 42.

[0031] Refer to Figure 1 , a scraper conveyor 6 is arranged below the rotary air lock valve 3 to automatically convey the dust towards the direction of the ash suction truck to prevent dust accumulation and blockage. A dust-proof cover 7 is arranged at the outlet of the rotary air lock valve 3 to prevent dust from floating randomly during the ash discharging process.

[0032] The implementation principle of the anti-jamming device for the star-shaped ash discharge valve 3 in the dust removal system according to the embodiments of the present application is as follows: After installing a short connection 4 between the star-shaped ash discharge valve 3 and the flap valve 2, it only requires the staff to regularly clean and inspect to reduce the situation of large dust or debris blocking the ash discharge valve. When the ash discharge valve is blocked, the inspection door at the short connection 4 can also be opened to clean the blockage, protecting the stable operation of the star-shaped ash discharge valve 3, improving the problem that the original positions of the ash discharge valve and the flap valve 2 were too close, and when the debris blocked the ash discharge valve, it was difficult to tightly close the flap valve 2, and even the dust bag in the ash bin 1 was jammed and damaged. It improves the service life of the ash discharge valve and the flap valve 2, reduces the operation risk, and reduces the maintenance workload.

[0033] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A device for preventing jamming of a star-shaped ash discharge valve in a dust removal system, comprising a ash bin (1), a slide gate valve (2) and a star-shaped ash discharge valve (3) arranged in sequence from top to bottom, characterized in that: A short joint (4) is arranged between the plug valve (2) and the rotary air lock valve (3). The short joint (4) is used to connect the plug valve (2) and the rotary air lock valve (3), and the short joint (4) is connected to the plug valve (2) and the rotary air lock valve (3) through fasteners (5).

2. The anti-jamming device for the star ash discharge valve of the dust removal system according to claim 1, characterized in that: An inspection opening (41) is formed in the side wall of the short joint (4), an inspection door (42) is arranged at the inspection opening (41), and a plurality of fixing bolts (43) are arranged on the inspection door (42).

3. The anti-jamming device for the star-shaped ash discharge valve of a dust removal system according to claim 2, characterized in that: A handle (44) is arranged on the outer wall of the inspection door (42).

4. The anti-jamming device for the star-shaped ash discharge valve of a dust removal system according to claim 1, characterized in that: One end of the ash bin (1) close to the plug valve (2) is arranged in a funnel shape.

5. The anti-jamming device for the star-shaped ash discharge valve of a dust removal system according to claim 4, characterized in that: A connecting sleeve (11) is arranged at one end of the ash bin (1) close to the plug valve (2). A locking ring (12) is rotatably connected to the outer wall of the connecting sleeve (11). A sleeve pipe (21) is arranged at the top end of the plug valve (2). The sleeve pipe (21) is sleeved on the outer wall of the connecting sleeve (11). A locking groove (13) is formed in the inner wall of the locking ring (12), and the outer wall of the sleeve pipe (21) is threadedly connected to the inner wall of the locking groove (13).

6. The anti-jamming device for the star-shaped ash discharge valve of a dust removal system according to claim 5, characterized in that: A hidden groove (14) is formed in the outer wall of the connecting sleeve (11). A locking piece (15) is rotatably connected in the hidden groove (14). A locking hole (16) is formed in the top wall of the locking ring (12). A locking member (17) is arranged on the locking ring (12). The locking member (17) passes through the locking piece (15) and is connected to the locking hole (16).

7. The anti-jamming device for the star-shaped ash discharge valve of the dust removal system according to claim 1, characterized in that: A scraper conveyor (6) is arranged below the rotary air lock valve (3).

8. The anti-jamming device for the rotary air lock valve of a dust removal system according to claim 7, characterized in that: A dust-proof cover (7) is arranged at one end of the rotary air lock valve (3) close to the scraper conveyor (6).

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