Deslagging dry-wet separation device of coking U-shaped water seal smoke guide system

Abstract

The utility model relates to the technical field of coke oven dust removal, and provides a coking U-shaped water seal smoke guide system deslagging dry-wet separation device which comprises a rack and an extrusion dewatering mechanism, and the extrusion dewatering mechanism comprises a driving assembly, a lower roller assembly, an upper roller assembly, lower coarse cotton cloth, upper coarse cotton cloth, a lower cleaning assembly and an upper cleaning assembly. The driving assembly, the lower roller assembly and the upper roller assembly are all arranged on the rack, the driving assembly drives the lower coarse cotton cloth to rotate, the lower roller assembly is located on the inner side of the lower coarse cotton cloth, the upper coarse cotton cloth is located above the lower coarse cotton cloth, the upper roller assembly is located on the inner side of the upper coarse cotton cloth, the upper roller assembly drives the upper coarse cotton cloth to rotate, and the upper roller assembly is located above the lower roller assembly. The lower cleaning assembly and the upper cleaning assembly are both arranged on the rack, the lower cleaning assembly is located below the side of the lower felt, and the lower cleaning assembly is used for cleaning coke powder on the lower felt. The extrusion dewatering mechanism is arranged, so that accumulated slag at the bottom of the U-shaped water seal tank is removed online, abrasion of the trunk elbow is avoided, and normal operation of the dust collection system is guaranteed.

Description

Technical Field

[0001] This application relates to the field of coke oven dust removal technology, and more specifically, to a dry and wet separation device for slag discharge in a coking U-shaped water seal flue gas system. Background Technology

[0002] The coke oven machine-side / coke-side dust removal water seal device is a trough welded from steel structure. It is installed on the coke oven machine side, with the coke pusher car track away from the outside of the coke oven. It is used to transport the dust collected by the 2×60-hole 6.25-meter tamping coke oven machine-side coke pusher car and coal charging car dust collection hood to the ground dust removal station for purification.

[0003] The water seal device consists of a dust collection main pipe, a U-shaped water seal trough sealing structure that connects to the coke pusher car, a bracket, and a water supply and drainage system. The water seal trough sealing structure can be divided into a water trough and a gas passage. The U-shaped pipe on the coke pusher car is located in the water trough. The gas coming out of the U-shaped pipe is sucked into the gas passage. The water trough is a continuous whole without partitions, ensuring the normal movement of the standby coke pusher. When the smoke and dust come out of the U-shaped pipe, some coke powder will fall into the water in the U-shaped water seal trough and sink to the bottom of the U-shaped water seal trough to form slag. The slag will wear down the most important component of the U-shaped water seal smoke guide system - the elephant trunk bend pipe. If the elephant trunk bend pipe is damaged and leaks water, it will cause the dust collection system to malfunction and affect production. Utility Model Content

[0004] The purpose of this application is to provide a dry and wet separation device for slag discharge in a coking U-shaped water seal flue gas system, which is used to remove the accumulated slag at the bottom of the U-shaped water seal trough online, avoid wear of the elephant trunk bend, and ensure that the dust collection system can operate normally.

[0005] This application provides a dry-wet separation device for slag discharge in a coking U-shaped water seal flue gas system, which adopts the following technical solution:

[0006] A coking U-shaped water seal flue gas system slag dry and wet separation device includes a frame and an extrusion dewatering mechanism. The extrusion dewatering mechanism includes a drive assembly, a lower roller assembly, an upper roller assembly, a lower felt, an upper felt, a lower cleaning assembly, and an upper cleaning assembly. The drive assembly, the lower roller assembly, and the upper roller assembly are all mounted on the frame. The drive assembly drives the lower felt to rotate. The lower roller assembly is located inside the lower felt. The upper felt is located above the lower felt. The upper roller assembly is located inside the upper felt. The upper roller assembly drives the upper felt to rotate. The upper roller assembly is located above the lower roller assembly.

[0007] Both the lower cleaning component and the upper cleaning component are mounted on the frame. The lower cleaning component is located below the lower felt and is used to clean the coke powder on the lower felt. The upper cleaning component is located below the upper felt and is used to clean the coke powder on the upper felt.

[0008] Preferably, the drive assembly includes a first motor, a second motor, a discharge roller, a feed roller, two first support seats, and two second support seats. The two first support seats are disposed opposite to each other at both ends of the frame. The discharge roller is disposed between the two first support seats. The first motor is disposed on one of the first support seats and drives the discharge roller to rotate. The two second support seats are disposed opposite to each other at both ends of the frame. The feed roller is disposed between the two second support seats. The second motor is disposed on one of the second support seats and drives the feed roller to rotate. The lower felt is disposed between the discharge roller and the feed roller.

[0009] Preferably, the lower roller assembly includes a third motor, a lower extrusion roller, and two lower support seats. The two lower support seats are disposed opposite to each other at both ends of the frame. The lower extrusion roller is disposed between the two lower support seats. The third motor is disposed on one of the lower support seats and drives the lower extrusion roller to rotate.

[0010] The upper roller assembly includes a fourth motor, a fifth motor, an upper extrusion roller, a rotating roller, two first supports, two first cylinders, two upper support seats, two second supports, and two third support seats. The two first supports are arranged opposite each other at both ends of the frame. The first cylinders are mounted on the first supports. The upper support seats are located above the lower support seats. The first cylinders drive the upper support seats to move closer to or away from the lower support seats. The upper extrusion roller is arranged between the two upper support seats. The fourth motor is mounted on one of the upper support seats and drives the upper extrusion roller to rotate. The two second supports are arranged opposite each other at both ends of the frame. The third support seats are mounted on the second supports. The rotating roller is arranged between the two third support seats. The fifth motor is mounted on one of the third support seats and drives the rotating roller to rotate.

[0011] Preferably, both the upper roller assembly and the lower roller assembly are provided in multiple sets, and the number of upper roller assemblies and lower roller assemblies are the same and arranged in a one-to-one correspondence.

[0012] Preferably, both the feed roller and the rotary roller are stretching rollers.

[0013] Preferably, the lower roller assembly further includes a sixth motor, a lower adjusting roller, two third supports, and two fourth support seats. The two third supports are disposed opposite to each other at both ends of the frame. The fourth support seats are disposed on the third supports. The lower adjusting roller is disposed between the two fourth support seats. The sixth motor is disposed on one of the fourth support seats and drives the lower adjusting roller to rotate. The upper roller assembly further includes a seventh motor, an upper adjusting roller, and two fifth support seats. The fifth support seats are disposed on the second support. The upper adjusting roller is disposed between the two fifth support seats. The seventh motor is disposed on one of the fifth support seats and drives the upper adjusting roller to rotate.

[0014] Preferably, the fourth support is slidably mounted on the third bracket, and the third bracket is provided with a second cylinder, which drives and connects to the fourth support. The fifth support is slidably mounted on the second bracket, and the second bracket is provided with a third cylinder, which drives and connects to the fifth support.

[0015] Preferably, a first sensor is provided on the second support, and a second sensor is provided on the frame.

[0016] Preferably, a fourth support is provided on the frame, and a feed hopper is provided on the fourth support, with the feed hopper located above the lower felt.

[0017] Preferably, the lower cleaning assembly includes a mounting base and a scraper. The mounting base is disposed on the frame, and the scraper is disposed on the mounting base and abuts against the lower felt. The upper cleaning assembly includes an eighth motor, a cleaning brush, and two sixth support bases. The sixth support bases are disposed on the first bracket, and the cleaning brush is disposed between the two sixth support bases. The eighth motor is disposed on one of the sixth support bases and drives the cleaning brush to rotate, with the cleaning brush abutting against the upper felt.

[0018] Compared with the prior art, the beneficial effects of this application are as follows:

[0019] This application employs a compression dewatering mechanism. The mixture of coke powder and water inside the water seal trough is placed on the lower felt, and a drive assembly rotates the lower felt, conveying the mixture. With the cooperation of the upper and lower roller assemblies, the mixture is compressed between the lower and upper felts. The squeezed water permeates through the lower felt and falls into a collection trough below the frame, then is sent to the U-shaped water seal trough for recycling. A lower cleaning assembly cleans the coke powder on the lower felt, and an upper cleaning assembly cleans the coke powder on the upper felt. The cleaned coke powder falls into a collection box below the frame for centralized processing, thus achieving online removal of accumulated slag at the bottom of the U-shaped water seal trough. This avoids wear on the elephant trunk bend and ensures the normal operation of the dust collection system. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 These are schematic diagrams of the structure of some embodiments of this utility model;

[0022] Figure 2 for Figure 1 A structural diagram from another perspective;

[0023] Figure 3 This is a side view of some embodiments of the present invention.

[0024] The reference numerals in the attached figures are as follows:

[0025] 1. Frame; 2. Extrusion and dewatering mechanism; 3. Drive assembly; 4. Lower roller assembly; 5. Upper roller assembly; 6. Lower felt; 7. Upper felt; 8. Lower cleaning assembly; 9. Upper cleaning assembly; 10. First motor; 11. Second motor; 12. Discharge roller; 13. Feed roller; 14. First support base; 15. Second support base; 16. Third motor; 17. Lower extrusion roller; 18. Lower support base; 19. Fourth motor; 20. Fifth motor; 21. Upper extrusion roller; 22. Rotary roller; 23. First bracket; 24. 1. First cylinder; 25. Upper support seat; 26. Second bracket; 27. Third support seat; 28. Sixth motor; 29. ​​Lower adjusting roller; 30. Third bracket; 31. Fourth support seat; 32. Seventh motor; 33. Upper adjusting roller; 34. Fifth support seat; 35. Second cylinder; 36. Third cylinder; 37. First sensor; 38. Second sensor; 39. Fourth bracket; 40. Feed hopper; 41. Mounting seat; 42. Scraper; 43. Eighth motor; 44. Cleaning brush; 45. Sixth support seat. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Example

[0033] like Figure 1-3 As shown in the embodiment of this application, the coking U-shaped water seal flue gas system slag dry and wet separation device includes a frame 1 and an extrusion dewatering mechanism 2. The extrusion dewatering mechanism 2 includes a drive assembly 3, a lower roller assembly 4, an upper roller assembly 5, a lower felt 6, an upper felt 7, a lower cleaning assembly 8, and an upper cleaning assembly 9. The drive assembly 3, the lower roller assembly 4, and the upper roller assembly 5 are all mounted on the frame 1. The drive assembly 3 drives the lower felt 6 to rotate. The lower roller assembly 4 is located inside the lower felt 6. The upper felt 7 is located above the lower felt 6. The upper roller assembly 5 is located inside the upper felt 7. The upper roller assembly 5 drives the upper felt 7 to rotate. The upper roller assembly 5 is located above the lower roller assembly 4. The lower cleaning assembly 8 and the upper cleaning assembly 9 are both mounted on the frame 1. The lower cleaning assembly 8 is located below the lower felt 6 and is used to clean the coke powder on the lower felt 6. The upper cleaning assembly 9 is located below the upper felt 7 and is used to clean the coke powder on the upper felt 7.

[0034] In operation, pneumatic power is first delivered through pipes to the U-shaped water seal trough to agitate the settled coke powder. After the coke powder and water are fully mixed, the mixture is pumped through pipes to the lower felt 6. The drive assembly 3 drives the lower felt 6 to rotate, using it to convey the coke powder and water mixture. With the cooperation of the upper roller assembly 5 and the lower roller assembly 4, the coke powder and water mixture is squeezed between the lower felt 6 and the upper felt 7. The squeezed water seeps through the lower felt 6 and falls into the collection tank below the frame 1, then is sent to the U-shaped water seal trough for recycling. The lower cleaning assembly 8 cleans the coke powder on the lower felt 6, and the upper cleaning assembly 9 cleans the coke powder on the upper felt 7. The cleaned coke powder falls into the collection box below the frame 1 for centralized processing, thus achieving online removal of slag at the bottom of the U-shaped water seal trough, avoiding wear on the elephant trunk bend, and ensuring the normal operation of the dust collection system.

[0035] In this embodiment, the drive assembly 3 includes a first motor 10, a second motor 11, a discharge roller 12, a feed roller 13, two first support seats 14, and two second support seats 15. The two first support seats 14 are arranged opposite to each other at both ends of the frame 1. The discharge roller 12 is arranged between the two first support seats 14. The first motor 10 is arranged on one of the first support seats 14 and drives the discharge roller 12 to rotate. The two second support seats 15 are arranged opposite to each other at both ends of the frame 1. The feed roller 13 is arranged between the two second support seats 15. The second motor 11 is arranged on one of the second support seats 15 and drives the feed roller 13 to rotate. The lower felt 6 is arranged between the discharge roller 12 and the feed roller 13.

[0036] In use, the first motor 10 drives the discharge roller 12 to rotate, and the second motor 11 drives the feed roller 13 to rotate. Under the combined action of the discharge roller 12 and the feed roller 13, the lower felt 6 is driven to rotate, and the lower felt 6 is used to transport the mixture of coke powder and water.

[0037] In this embodiment, the lower roller assembly 4 includes a third motor 16, a lower extrusion roller 17, and two lower support seats 18. The two lower support seats 18 are arranged opposite each other at both ends of the frame 1. The lower extrusion roller 17 is arranged between the two lower support seats 18. The third motor 16 is arranged on one of the lower support seats 18 and drives the lower extrusion roller 17 to rotate. The upper roller assembly 5 includes a fourth motor 19, a fifth motor 20, an upper extrusion roller 21, a rotating roller 22, two first supports 23, two first cylinders 24, two upper support seats 25, two second supports 26, and two third support seats 27. The two first supports 23 are arranged opposite each other at both ends of the frame 1. The first cylinder 24 is mounted on the first bracket 23. The upper support seat 25 is located above the lower support seat 18. The first cylinder 24 drives the upper support seat 25 to move closer to or away from the lower support seat 18. The upper extrusion roller 21 is mounted between the two upper support seats 25. The fourth motor 19 is mounted on one of the upper support seats 25. The fourth motor 19 drives the upper extrusion roller 21 to rotate. The two second brackets 26 are mounted opposite each other at both ends of the frame 1. The third support seat 27 is mounted on the second bracket 26. The rotating roller 22 is mounted between the two third support seats 27. The fifth motor 20 is mounted on one of the third support seats 27. The fifth motor 20 drives the rotating roller 22 to rotate.

[0038] In use, the third motor 16 drives the lower extrusion roller 17 to rotate, the fourth motor 19 drives the upper extrusion roller 21 to rotate, and the fifth motor 20 drives the rotating roller 22 to rotate. With the cooperation of the upper extrusion roller 21 and the rotating roller 22, the upper felt 7 rotates. With the cooperation of the upper extrusion roller 21 and the lower extrusion roller 17, the mixture of coke powder and water is squeezed and dehydrated between the upper felt 7 and the lower felt 6. The first cylinder 24 drives the upper support seat 25 to move closer to or further away from the lower support seat 18, which can change the distance between the upper extrusion roller 21 and the lower extrusion roller 17, thereby facilitating the adjustment of the roller pressure of the lower extrusion roller 17 and the upper extrusion roller 21 according to the usage requirements.

[0039] In this embodiment, multiple sets of upper roller assembly 5 and lower roller assembly 4 are provided. The set of upper roller assembly 5 farthest from the rotating roller 22 is used to drive the upper felt 7 to rotate, and at the same time, it exerts a squeezing effect on the mixture of coke powder and water. The number of upper roller assembly 5 and lower roller assembly 4 are the same and they are arranged in a one-to-one correspondence. The multi-stage squeezing method is adopted to improve the dewatering effect of the mixture.

[0040] In this embodiment, both the feed roller 13 and the rotating roller 22 are stretching rollers. The feed roller 13 is used to prevent the lower felt 6 from wrinkling, and the rotating roller 22 is used to prevent the upper felt 7 from wrinkling.

[0041] In this embodiment, the lower roller assembly 4 further includes a sixth motor 28, a lower adjusting roller 29, two third supports 30, and two fourth support seats 31. The two third supports 30 are arranged opposite each other at both ends of the frame 1. The fourth support seats 31 are arranged on the third supports 30. The lower adjusting roller 29 is arranged between the two fourth support seats 31. The sixth motor 28 is arranged on one of the fourth support seats 31 and drives the lower adjusting roller 29 to rotate. The upper roller assembly 5 further includes a seventh motor 32, an upper adjusting roller 33, and two fifth support seats 34. The fifth support seats 34 are arranged on the second support 26. The upper adjusting roller 33 is arranged between the two fifth support seats 34. The seventh motor 32 is arranged on one of the fifth support seats 34 and drives the upper adjusting roller 33 to rotate.

[0042] In use, the sixth motor 28 drives the lower adjusting roller 29 to rotate, and the lower adjusting roller 29 is used to prevent the lower felt 6 from running off-center. The seventh motor 32 drives the upper adjusting roller 33 to rotate, and the upper adjusting roller 33 is used to prevent the upper felt 7 from running off-center.

[0043] In this embodiment, the fourth support seat 31 is slidably mounted on the third bracket 30. The third bracket 30 is provided with a second cylinder 35, which drives and connects to the fourth support seat 31. When the lower adjusting roller 29 deviates, the second cylinder 35 drives the fourth support seat 31 to slide on the third bracket 30, thereby adjusting the relative position of the lower adjusting roller 29. The fifth support seat 34 is slidably mounted on the second bracket 26. The second bracket 26 is provided with a third cylinder 36, which drives and connects to the fifth support seat 34. When the upper adjusting roller 33 deviates, the third cylinder 36 drives the fifth support seat 34 to slide on the third bracket 30, thereby adjusting the relative position of the upper adjusting roller 33.

[0044] In this embodiment, a first sensor 37 is provided on the second support 26. The first sensor 37 is used to detect whether the upper adjusting roller 33 is misaligned. A second sensor 38 is provided on the frame 1. The second sensor 38 is used to detect whether the lower adjusting roller 29 is misaligned, so as to facilitate timely adjustment of the upper adjusting roller 33 and the lower adjusting roller 29.

[0045] In this embodiment, a fourth support 39 is provided on the frame 1, and a feed hopper 40 is provided on the fourth support 39. The feed hopper 40 is located above the lower felt 6. When in use, the mixture of coke powder and water is fed into the feed hopper 40 to facilitate the concentration of material flow.

[0046] In this embodiment, the lower cleaning component 8 includes a mounting base 41 and a scraper 42. The mounting base 41 is mounted on the frame 1, and the scraper 42 is mounted on the mounting base 41. The scraper 42 abuts against the lower felt 6. The upper cleaning component 9 includes an eighth motor 43, a cleaning brush 44, and two sixth support seats 45. The sixth support seats 45 are mounted on the first bracket 23, and the cleaning brush 44 is mounted between the two sixth support seats 45. The eighth motor 43 is mounted on one of the sixth support seats 45. The eighth motor 43 drives the cleaning brush 44 to rotate, and the cleaning brush 44 abuts against the upper felt 7.

[0047] During use, the lower felt 6 rotates and comes into contact with the scraper 42. The scraper 42 scrapes off the coke powder on the lower felt 6. The eighth motor 43 drives the cleaning brush 44 to rotate, and the cleaning brush 44 cleans the coke powder on the upper felt 7.

[0048] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dry-wet separation device for slag discharge in a coking U-shaped water seal flue gas system, characterized in that: The machine includes a frame and a dewatering mechanism. The dewatering mechanism includes a drive assembly, a lower roller assembly, an upper roller assembly, a lower felt, an upper felt, a lower cleaning assembly, and an upper cleaning assembly. The drive assembly, the lower roller assembly, and the upper roller assembly are all mounted on the frame. The drive assembly drives the lower felt to rotate. The lower roller assembly is located inside the lower felt. The upper felt is located above the lower felt. The upper roller assembly is located inside the upper felt. The upper roller assembly drives the upper felt to rotate. The upper roller assembly is located above the lower roller assembly. Both the lower cleaning component and the upper cleaning component are mounted on the frame. The lower cleaning component is located below the lower felt and is used to clean the coke powder on the lower felt. The upper cleaning component is located below the upper felt and is used to clean the coke powder on the upper felt.

2. The coking U-shaped water seal flue gas guiding system slag dry and wet separation device according to claim 1, characterized in that: The drive assembly includes a first motor, a second motor, a discharge roller, a feed roller, two first support seats, and two second support seats. The two first support seats are arranged opposite each other at both ends of the frame. The discharge roller is arranged between the two first support seats. The first motor is arranged on one of the first support seats and drives the discharge roller to rotate. The two second support seats are arranged opposite each other at both ends of the frame. The feed roller is arranged between the two second support seats. The second motor is arranged on one of the second support seats and drives the feed roller to rotate. The lower felt is arranged between the discharge roller and the feed roller.

3. The coking U-shaped water seal flue gas guiding system slag dry and wet separation device according to claim 2, characterized in that: The lower roller assembly includes a third motor, a lower extrusion roller, and two lower support seats. The two lower support seats are arranged opposite to each other at both ends of the frame. The lower extrusion roller is arranged between the two lower support seats. The third motor is arranged on one of the lower support seats and drives the lower extrusion roller to rotate. The upper roller assembly includes a fourth motor, a fifth motor, an upper extrusion roller, a rotating roller, two first supports, two first cylinders, two upper support seats, two second supports, and two third support seats. The two first supports are arranged opposite each other at both ends of the frame. The first cylinders are mounted on the first supports. The upper support seats are located above the lower support seats. The first cylinders drive the upper support seats to move closer to or away from the lower support seats. The upper extrusion roller is arranged between the two upper support seats. The fourth motor is mounted on one of the upper support seats and drives the upper extrusion roller to rotate. The two second supports are arranged opposite each other at both ends of the frame. The third support seats are mounted on the second supports. The rotating roller is arranged between the two third support seats. The fifth motor is mounted on one of the third support seats and drives the rotating roller to rotate.

4. The coking U-shaped water seal flue gas guiding system slag dry and wet separation device according to claim 3, characterized in that: Both the upper roller assembly and the lower roller assembly are provided in multiple sets, and the number of upper roller assemblies and lower roller assemblies are the same and arranged in a one-to-one correspondence.

5. The coking U-shaped water seal flue gas system slag dry and wet separation device according to claim 4, characterized in that: Both the feed roller and the rotary roller are stretching rollers.

6. The coking U-shaped water seal flue gas system slag dry and wet separation device according to claim 5, characterized in that: The lower roller assembly further includes a sixth motor, a lower adjusting roller, two third supports, and two fourth support seats. The two third supports are arranged opposite to each other at both ends of the frame. The fourth support seats are arranged on the third supports. The lower adjusting roller is arranged between the two fourth support seats. The sixth motor is arranged on one of the fourth support seats and drives the lower adjusting roller to rotate. The upper roller assembly further includes a seventh motor, an upper adjusting roller, and two fifth support seats. The fifth support seats are arranged on the second support. The upper adjusting roller is arranged between the two fifth support seats. The seventh motor is arranged on one of the fifth support seats and drives the upper adjusting roller to rotate.

7. The coking U-shaped water seal flue gas system slag dry and wet separation device according to claim 6, characterized in that: The fourth support is slidably mounted on the third bracket, and the third bracket is provided with a second cylinder, which drives and connects to the fourth support. The fifth support is slidably mounted on the second bracket, and the second bracket is provided with a third cylinder, which drives and connects to the fifth support.

8. The coking U-shaped water seal flue gas system slag dry and wet separation device according to claim 7, characterized in that: The second support is equipped with a first sensor, and the frame is equipped with a second sensor.

9. The coking U-shaped water seal flue gas system slag dry and wet separation device according to claim 7, characterized in that: The frame is provided with a fourth support, and the fourth support is provided with a feed hopper, which is located above the lower felt.

10. The coking U-shaped water seal flue gas guiding system slag dry and wet separation device according to claim 3, characterized in that: The lower cleaning assembly includes a mounting base and a scraper. The mounting base is disposed on the frame, and the scraper is disposed on the mounting base and abuts against the lower felt. The upper cleaning assembly includes an eighth motor, a cleaning brush, and two sixth support bases. The sixth support bases are disposed on the first bracket, and the cleaning brush is disposed between the two sixth support bases. The eighth motor is disposed on one of the sixth support bases and drives the cleaning brush to rotate, with the cleaning brush abutting against the upper felt.

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