Dedusting device for deslagging of ammonia water and tar separating and clarifying tank in coking plant

Abstract

The utility model belongs to the technical field of dust removal devices, and particularly relates to a dust removal device for deslagging of an ammonia water and tar separation clarifying tank in a coking plant, which comprises the clarifying tank and a deslagging hopper used for ammonia water and tar separation in the coking plant, a cover plate is detachably and fixedly connected to the top of the deslagging hopper, and a feed port is formed in the top of the cover plate. A same slag discharge pipe is fixedly communicated between the feeding hole and the clarifying tank, a valve mechanism is arranged between the feeding hole and the cover plate, and a box body is fixedly connected to the top of the cover plate. The slag discharging device is reasonable in structural design, gas volatilized by the slag discharging hopper can be directly and effectively filtered and purified through the gas treatment mechanism, the surrounding environment is prevented from being polluted, the body health of workers is guaranteed, the four suction nozzles are driven to rotate back and forth in a reciprocating mode through the swing assembly, the volatilized gas in the slag discharging hopper can be fully pumped out, and the service life of the slag discharging hopper is prolonged. Furthermore, the volatile gas can be completely filtered and purified, and the gas filtering and purifying effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal devices, in particular to a dust removal device for discharging slag from an ammonia water and tar separation and clarification tank in a coking plant. Background Art

[0002] In the ammonia water and tar separation process in a coking plant, a mechanized clarification tank (commonly known as a large ship) separation process is adopted. During the ammonia water and tar separation process, tar residues are scraped out by a chain scraper at the bottom of the large ship, and the collected tar residues are discharged into a tar residue hopper on the ground through slag discharge. After retrieval: A dust removal device for discharging slag from an ammonia water and tar separation and clarification tank in a coking plant with the authorized announcement number CN209790960U includes a mechanized clarification tank used in the ammonia water and tar separation process in a coking plant. The slag discharge port provided on the clarification tank is connected to the tar residue hopper. A dust-proof cover is connected to the slag discharge port of the clarification tank through a rubber expansion pipe provided. The dust-proof cover is matched with the upper opening of the tar residue hopper, and an annular water seal groove is provided on the periphery of the upper opening of the tar residue hopper.

[0003] However, the above-mentioned dust removal device for discharging slag from an ammonia water and tar separation and clarification tank in a coking plant still has deficiencies. The above patent only temporarily stores the gas in the clarification tank into the tar residue hopper, which is inconvenient to directly and effectively treat the collected gas and is prone to polluting the surrounding environment. Some patents, such as a dust removal device for discharging slag from an ammonia water and tar separation and clarification tank in a coking plant with the authorized announcement number CN213589786U, although it can purify the collected gas, only extracts the volatile gas from one position, which is prone to incomplete extraction and affects the gas filtration and purification effect. Therefore, we propose a dust removal device for discharging slag from an ammonia water and tar separation and clarification tank in a coking plant to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above-mentioned drawbacks and propose a dust removal device for discharging slag from an ammonia water and tar separation and clarification tank in a coking plant.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A dust removal device for discharging slag from an ammonia water and tar separation and clarification tank in a coking plant includes a clarification tank and a slag discharge hopper used for ammonia water and tar separation in a coking plant. The top of the slag discharge hopper is detachably and fixedly connected with a cover plate. An inlet is opened on the top of the cover plate. The inlet and the clarification tank are fixedly communicated with the same slag discharge pipe. A valve mechanism is arranged between the inlet and the cover plate. A box body is fixedly connected to the top of the cover plate. A gas treatment mechanism is arranged between the box body and the cover plate. The gas treatment mechanism includes a filter plate slidably sleeved in the box body, an air extraction pump fixedly communicated with the top of the box body, a collection box slidably connected in the box body, and a mobile air intake assembly.

[0007] Preferably, the mobile intake assembly of the present utility model includes an intake assembly and a swing assembly. The intake assembly includes an annular pipe fixedly connected to the bottom of the cover plate. There is a same intake pipe fixedly connected and communicated between the top of the annular pipe and one side of the box body. Four flexible hoses are fixedly connected and communicated around the outside of the annular pipe. One end of each of the four flexible hoses is fixedly connected and communicated with a suction nozzle.

[0008] Preferably, an upper outlet and a lower outlet are opened on the front side of the box body. The collection box is slidably sleeved in the lower outlet, and the filter plate is slidably sleeved in the upper outlet.

[0009] Preferably, an annular cavity is opened in the cover plate. The swing assembly includes a driving motor fixedly connected to the front side of the cover plate and an external gear ring rotatably connected in the annular cavity. A reciprocating lead screw is fixedly connected to the output shaft of the driving motor. A moving plate is threadedly sleeved on the outside of the reciprocating lead screw. A rack is fixedly connected to one side of the moving plate. The rack meshes with the external gear ring. Four connecting rods are fixedly connected to the bottom of the external gear ring. The four suction nozzles are respectively fixedly connected to the bottom ends of the corresponding connecting rods.

[0010] Preferably, a bearing is fixedly connected in the annular cavity. The outer ring of the bearing is fixedly connected to the inner side of the external gear ring.

[0011] Preferably, an annular hole is opened at the bottom of the cover plate. The four connecting rods are all slidably sleeved in the annular hole. A groove is opened on the inner wall of one side of the annular cavity. The moving plate and the rack are both slidably sleeved in the groove.

[0012] Preferably, the valve mechanism includes a groove opened on one side of the feed inlet. A cylinder is fixedly connected in the groove. A gate plate is fixedly connected to the output shaft of the cylinder. The gate plate is slidably sleeved in the feed inlet.

[0013] Preferably, an installation ring is fixedly connected to the bottom of the cover plate. Four screw rods are fixedly connected to the outside of the installation ring. The installation ring is fixedly connected to the outside of the slag discharge hopper through the four screw rods. A sealing ring is fixedly connected to the bottom of the cover plate. The sealing ring is movably abutted against the top of the slag discharge hopper.

[0014] In the present utility model, for a dust removal device for slag discharge of an ammonia water and tar separation and clarification tank in a coking plant, when discharging slag, the cylinder drives the gate plate to move to the right without blocking the feed inlet. At this time, the tar slag in the clarification tank enters the slag discharge hopper through the slag discharge pipe for collection. Through the air extraction pump, the volatilized gas in the slag discharge hopper can be sucked into the suction nozzle, hose, annular pipe and intake pipe, and finally enters the box body. Through the filtration and purification of the filter plate, the working environment of workers is guaranteed, and the impurities in the gas are filtered into the collection box for collection and treatment. The gas after filtration and purification is discharged from the air outlet end of the air extraction pump;

[0015] In the present utility model, for a dust removal device for slag discharge of an ammonia water and tar separation and clarification tank in a coking plant, in order to ensure complete absorption and purification of the volatilized gas, the driving motor is started. The driving motor drives the rotation of the reciprocating lead screw, and the reciprocating lead screw drives the back-and-forth movement of the moving plate and the rack. The rack drives the deflection of the external gear ring, four connecting rods and the suction nozzle. Furthermore, through the back-and-forth rotation of the four suction nozzles, the volatilized gas in the slag discharge hopper can be fully extracted, and thus the volatilized gas can be completely filtered and purified. When it is necessary to clean the tar slag in the slag discharge hopper, the cylinder is started in the reverse direction, so that the cylinder drives the gate plate to move to the left to block the feed inlet, and then the screw is loosened, and the cover plate is removed from the top of the slag discharge hopper, and the tar slag in the slag discharge hopper can be cleaned up;

[0016] The structure of the present utility model is reasonably designed. Through the gas treatment mechanism, the volatilized gas in the slag discharge hopper can be directly and effectively filtered and purified, avoiding pollution to the surrounding environment and ensuring the physical health of workers. And through the swing assembly, the back-and-forth reciprocating rotation of the four suction nozzles is driven, and the volatilized gas in the slag discharge hopper can be fully extracted, and thus the volatilized gas can be completely filtered and purified, improving the effect of gas filtration and purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a dust removal device for slag discharge of an ammonia water and tar separation and clarification tank in a coking plant proposed by the present utility model;

[0018] Figure 2 is a cross-sectional view of a dust removal device for slag discharge of an ammonia water and tar separation and clarification tank in a coking plant proposed by the present utility model;

[0019] Figure 3 is Figure 2 a schematic structural diagram of part A in

[0020] Figure 4 is a three-dimensional view of the external gear ring, rack, moving plate and reciprocating lead screw of a dust removal device for slag discharge of an ammonia water and tar separation and clarification tank in a coking plant proposed by the present utility model.

[0021] In the figure: 1. Clarification tank; 2. Slag discharge pipe; 3. Cover plate; 4. Slag discharge hopper; 5. Installation ring; 6. Screw; 7. Sealing ring; 8. Feed inlet; 9. Gate plate; 10. Groove; 11. Cylinder; 12. Air inlet pipe; 13. Box body; 14. Air extraction pump; 15. Collection box; 16. Filter plate; 17. Driving motor; 18. Annular pipe; 19. Hose; 20. Annular cavity; 21. Bearing; 22. Outer gear ring; 23. Rack; 24. Reciprocating lead screw; 25. Moving plate; 26. Suction nozzle; 27. Connecting rod. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Refer to Figures 1-4 , a dust removal device for slag discharge of ammonia water and tar separation and clarification tank in a coking plant, including a clarification tank 1 and a slag discharge hopper 4 used for ammonia water and tar separation in a coking plant. The top of the slag discharge hopper 4 is detachably and fixedly connected with a cover plate 3. The top of the cover plate 3 is provided with a feed inlet 8. The feed inlet 8 and the clarification tank 1 are fixedly communicated with the same slag discharge pipe 2. A valve mechanism is arranged between the feed inlet 8 and the cover plate 3. The top of the cover plate 3 is fixedly connected with a box body 13. A gas treatment mechanism is arranged between the box body 13 and the cover plate 3. The gas treatment mechanism includes a filter plate 16 slidably sleeved in the box body 13, an air extraction pump 14 fixedly communicated with the top of the box body 13, a collection box 15 slidably connected in the box body 13, and a mobile air inlet assembly.

[0024] Furthermore, the mobile air inlet assembly includes an air inlet assembly and a swing assembly. The air inlet assembly includes an annular pipe 18 fixedly connected to the bottom of the cover plate 3. The top of the annular pipe 18 and one side of the box body 13 are fixedly communicated with the same air inlet pipe 12. The outer circumference of the annular pipe 18 is fixedly communicated with hoses 19. One end of each of the four hoses 19 is fixedly communicated with a suction nozzle 26.

[0025] Adopting the above scheme: Through the air extraction pump 14, the gas volatilized from the slag discharge hopper 4 can be sucked into the suction nozzle 26, the hose 19, the annular pipe 18 and the air inlet pipe 12, and finally enter the box body 13. Through the filtration and purification of the filter plate 16, the working environment of workers is guaranteed, and the impurities in the gas are filtered into the collection box 15 for collection and treatment. The filtered and purified gas is discharged from the air outlet end of the air extraction pump 14.

[0026] Furthermore, an upper outlet and a lower outlet are provided on the front side of the box body 13. The collection box 15 is slidably sleeved in the lower outlet, and the filter plate 16 is slidably sleeved in the upper outlet, which is convenient for pulling out the collection box 15 and the filter plate 16 for cleaning.

[0027] Further, an annular cavity 20 is formed in the cover plate 3. The swing assembly includes a driving motor 17 fixedly connected to the front side of the cover plate 3 and an external gear ring 22 rotatably connected in the annular cavity 20. A reciprocating lead screw 24 is fixedly connected to the output shaft of the driving motor 17. A moving plate 25 is sleeved on the outer side of the reciprocating lead screw 24 in a threaded manner. A rack 23 is fixedly connected to one side of the moving plate 25. The rack 23 meshes with the external gear ring 22. Four connecting rods 27 are fixedly connected to the bottom of the external gear ring 22. Four suction nozzles 26 are respectively fixedly connected to the bottom ends of the corresponding connecting rods 27.

[0028] Adopting the above solution: In order to ensure complete absorption and purification of the volatilized gas, the driving motor 17 is started. The driving motor 17 drives the rotation of the reciprocating lead screw 24. The reciprocating lead screw 24 drives the back-and-forth movement of the moving plate 25 and the rack 23. The rack 23 drives the back-and-forth rotation of the external gear ring 22, the four connecting rods 27 and the suction nozzles 26. Furthermore, through the back-and-forth rotation of the four suction nozzles 26, the volatilized gas in the slag discharge hopper 4 can be fully extracted, and thus the volatilized gas can be completely filtered and purified.

[0029] Further, a bearing 21 is fixedly connected in the annular cavity 20. The outer ring of the bearing 21 is fixedly connected to the inner side of the external gear ring 22. An annular hole is formed in the bottom of the cover plate 3. The four connecting rods 27 are all slidably sleeved in the annular hole. A groove is formed in one inner wall of the annular cavity 20. The moving plate 25 and the rack 23 are both slidably sleeved in the groove, making their movement more stable and smooth.

[0030] Adopting the above solution: The external gear ring 22 can be supported to make its rotation more stable. Through the arrangement of the groove and the annular hole, it is beneficial to guide the moving plate 25 and the connecting rod 27, making their movement more stable and smooth.

[0031] Further, the valve mechanism includes a groove 10 formed on one side of the feed inlet 8. A cylinder 11 is fixedly connected in the groove 10. A gate plate 9 is fixedly connected to the output shaft of the cylinder 11. The gate plate 9 is slidably sleeved in the feed inlet 8.

[0032] Adopting the above solution: When discharging slag, the cylinder 11 drives the gate plate 9 to move to the right without blocking the feed inlet 8. At this time, the tar slag in the clarification tank 1 enters the slag discharge hopper 4 through the slag discharge pipe 2 for collection. When it is necessary to clean the tar slag in the slag discharge hopper 4, the cylinder 11 is started in the reverse direction, so that the cylinder 11 drives the gate plate 9 to move to the left to block the feed inlet 8.

[0033] Further, an installation ring 5 is fixedly connected to the bottom of the cover plate 3. Four screw rods 6 are fixedly connected to the outer side of the installation ring 5. The installation ring 5 is fixedly connected to the outer side of the slag discharge hopper 4 through the four screw rods 6. A sealing ring 7 is fixedly connected to the bottom of the cover plate 3. The sealing ring 7 is movably abutted against the top of the slag discharge hopper 4.

[0034] Adopting the above solution: Loosen the screw rod 6, remove the cover plate 3 from the top of the slag discharge hopper 4, and then the tar slag in the slag discharge hopper 4 can be cleaned. Place the cover plate 3 on the top of the slag discharge hopper 4, and then tighten the screw rod 6 to fix the cover plate 3 on the top of the slag discharge hopper 4. Through the sealing ring 7, the sealing performance between the cover plate 3 and the slag discharge hopper 4 is improved, avoiding air leakage.

[0035] In the present utility model, during use, when discharging slag, the cylinder 11 drives the gate plate 9 to move to the right without blocking the feeding port 8. At this time, the tar slag in the clarification tank 1 enters the slag discharge hopper 4 through the slag discharge pipe 2 for collection. Through the air extraction pump 14, the gas volatilized from the slag discharge hopper 4 can be sucked into the suction nozzle 26, the hose 19, the annular pipe 18 and the air inlet pipe 12, and finally enters the box body 13. Through the filtration and purification of the filter plate 16, the working environment of the workers is ensured, and the impurities in the gas are filtered into the collection box 15 for collection and treatment. The gas after filtration and purification is discharged from the air outlet end of the air extraction pump 14. In order to ensure the complete absorption and purification of the volatilized gas, start the driving motor 17. The driving motor 17 drives the rotation of the reciprocating lead screw 24. The reciprocating lead screw 24 drives the back-and-forth movement of the moving plate 25 and the rack 23. The rack 23 drives the deflection of the external tooth ring 22, the four connecting rods 27 and the suction nozzle 26. Furthermore, through the back-and-forth rotation of the four suction nozzles 26, the volatilized gas in the slag discharge hopper 4 can be fully extracted, and thus the volatilized gas can be completely filtered and purified. When it is necessary to clean the tar slag in the slag discharge hopper 4, reverse-start the cylinder 11 to make the cylinder 11 drive the gate plate 9 to move to the left to block the feeding port 8, and then loosen the screw rod 6 to remove the cover plate 3 from the top of the slag discharge hopper 4, and then the tar slag in the slag discharge hopper 4 can be cleaned.

Claims

1. A dust removal device for slag discharge in ammonia tar separation clarification tank of a coking plant, characterized in that: The invention comprises a clarification tank (1) and a slag discharge hopper (4) used for separating ammonia water and tar in a coking plant. The top of the slag discharge hopper (4) is detachably and fixedly connected with a cover plate (3). The top of the cover plate (3) is provided with a feed port (8). The feed port (8) and the clarification tank (1) are fixedly connected with a slag discharge pipe (2). A valve mechanism is provided between the feed port (8) and the cover plate (3). The top of the cover plate (3) is fixedly connected with a box body (13). A gas processing mechanism is provided between the box body (13) and the cover plate (3). The gas processing mechanism comprises a filter plate (16) slidably sleeved in the box body (13), an air pump (14) fixedly connected to the top of the box body (13), a collection box (15) slidably connected in the box body (13), and a movable air intake assembly.

2. The dust removal device for slag discharge in ammonia tar separation clarification tank of a coking plant according to claim 1, characterized in that: The movable air intake assembly comprises an air intake assembly and a swing assembly, wherein the air intake assembly comprises an annular tube (18) fixedly connected to the bottom of the cover plate (3), the top of the annular tube (18) and one side of the box body (13) are fixedly connected to the same air intake pipe (12), the outer sides of the annular tube (18) are fixedly connected to hoses (19), and one end of each of the four hoses (19) is fixedly connected to a suction nozzle (26).

3. The dust removal device for slag discharge in ammonia tar separation clarification tank of a coking plant according to claim 1, characterized in that: An upper outlet and a lower outlet are provided on the front side of the box body (13); the collecting box (15) is slidably sleeved in the lower outlet; and the filter plate (16) is slidably sleeved in the upper outlet.

4. The dust removal device for slag discharge in ammonia tar separation clarification tank of a coking plant according to claim 2, characterized in that: An annular cavity (20) is provided in the cover plate (3), and the swing assembly comprises a driving motor (17) fixedly connected to the front side of the cover plate (3) and an outer toothed ring (22) rotatably connected to the annular cavity (20); a reciprocating screw (24) is fixedly connected to the output shaft of the driving motor (17); a movable plate (25) is provided on the outer thread sleeve of the reciprocating screw (24); a rack (23) is fixedly connected to one side of the movable plate (25); the rack (23) is meshed with the outer toothed ring (22); four connecting rods (27) are fixedly connected to the bottom of the outer toothed ring (22); and four suction nozzles (26) are respectively fixedly connected to the bottom ends of the corresponding connecting rods (27).

5. The dust removal device for slag discharge in ammonia tar separation clarification tank of a coking plant according to claim 4, characterized in that: A bearing (21) is fixedly connected inside the annular cavity (20), and an outer ring of the bearing (21) is fixedly connected to the inner side of the outer gear ring (22).

6. The dust removal device for slag discharge in ammonia tar separation clarification tank of a coking plant according to claim 4, characterized in that: The bottom of the cover plate (3) is provided with an annular hole, and four connecting rods (27) are slidably mounted in the annular hole. A groove is provided on the inner wall of one side of the annular cavity (20), and the movable plate (25) and the rack (23) are slidably mounted in the groove.

7. The dust removal device for slag discharge in ammonia tar separation clarification tank of a coking plant according to claim 1, characterized in that: The valve mechanism comprises a groove (10) opened on one side of the feed port (8), a cylinder (11) is fixedly connected in the groove (10), a gate plate (9) is fixedly connected on the output shaft of the cylinder (11), and the gate plate (9) is slidably sleeved in the feed port (8).

8. The dust removal device for slag discharge in ammonia tar separation clarification tank of a coking plant according to claim 1, characterized in that: The bottom of the cover plate (3) is fixedly connected to a mounting ring (5), the outer side of the mounting ring (5) is fixedly connected to four screw rods (6), the mounting ring (5) is fixedly connected to the outer side of the slag discharge bucket (4) via the four screw rods (6), the bottom of the cover plate (3) is fixedly connected to a sealing ring (7), and the sealing ring (7) is movably abutted against the top of the slag discharge bucket (4).

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