Multifunctional smoke guide vehicle for tamping coke oven

Abstract

The invention discloses a multifunctional smoke guide vehicle for a tamping coke oven, and belongs to the technical field of tamping coke ovens, the multifunctional smoke guide vehicle comprises a walking platform, a middle row M pipe, a coke side N pipe, a smoke guide cover, a smoke treatment system and a dust suction pipe, the walking platform moves along a walking track fixed on the top of the tamping coke oven; the middle-row M pipes are arranged on the walking platform in a lifting manner; the coke side N tube is arranged on the movable bracket in a lifting manner; the smoke guide cover is used for covering an ascending pipe of the carbonization chamber of the to-be-aired furnace; the flue gas treatment system is used for cooling, tar removal and dust removal of the extracted flue gas of the ascending pipe, and the dust suction pipe is used for sucking dust on the top of the tamping coke oven. Through cooperation of the dust collection pipe and the flue gas treatment system, dust collection treatment can be performed on furnace top dust, collection treatment can also be performed on flue gas escaping from the ascending pipe, and meanwhile, flue gas during coke pushing and coal charging can be subjected to flue gas guide treatment, so that the environment of the furnace top of the tamping coke oven is comprehensively guaranteed, and pollution is reduced.

Description

Technical Field

[0001] This invention relates to the field of tamping coke oven technology, and specifically to a multi-functional smoke guiding vehicle for tamping coke ovens. Background Technology

[0002] A tamping coke oven is a side-loading coke oven that uses a tamping method to charge coal and produce tamped coke. During coke pushing and coal charging, a large amount of smoke and dust is generated in the carbonization chamber. If this smoke and dust is not treated, it will escape from the oven door. During oven cooling, flue gas is also emitted through the riser pipes. Dust emitted during coking gradually accumulates on the top of the tamping coke oven.

[0003] Existing flue gas guide cars have limited functions, generally only having a flue gas guide structure during coke pushing and coal loading, and are unable to effectively and comprehensively manage the scattered smoke and dust at the coke side furnace head, machine side furnace head, and riser pipe, as well as the cleanliness of the furnace roof and ground. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a multi-functional flue gas guiding car for tamping coke ovens. By incorporating a central M-tube, a coke-side N-tube, a flue gas treatment system, and a dust extraction pipe, it effectively solves the problems of flue gas guiding, flue gas treatment in the riser pipe, and cleaning of the oven top, achieving a high degree of integration.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a multi-functional smoke guiding car for tamping coke ovens, comprising: The traveling platform moves along a traveling track fixed to the top of the tamping coke oven; The middle row of M-tubes is lifted and mounted on the traveling platform; The coke-side N-tube is provided with a movable support on the walking platform, and the coke-side N-tube is lifted and lowered on the movable support. A fume hood, installed on the walking platform, is used to cover the riser pipe of the carbonization chamber of the furnace to be cooled. An automatic igniter is installed inside the fume hood. The flue gas treatment system, set on the walking platform, includes a cooling water tank, a coke adsorption tank, a dust collector, and a negative pressure fan. The smoke guide hood, cooling water tank, coke adsorption tank, and dust collector are connected in sequence to form a flue gas treatment pipeline, which cools, removes tar, and removes dust from the flue gas drawn from the riser pipe. The negative pressure fan provides negative pressure power for the flue gas treatment pipeline. The dust suction pipe is lifted and installed on the walking platform and connected to the flue gas treatment pipe at the front end of the dust collector. It is used to suck up the dust from the top of the coke oven. When coal is loaded into carbonization chamber N in the tamping coke oven, the middle row M pipe connects carbonization chambers N-1 and N+2 with carbonization chamber N, and the coke side N pipe connects carbonization chamber N+4 with carbonization chamber N. The gas system extracts flue gas from carbonization chamber N through the middle row M pipe and the coke side N pipe.

[0006] Preferably, the middle M-tube is provided with three risers corresponding to the smoke guide holes on carbonization chambers N-1, N, and N+2, respectively, and a horizontal guide tube connecting the three risers. The coke side N-tube is provided with two risers corresponding to the smoke guide holes on carbonization chambers N and N+4, respectively, and a horizontal guide tube connecting the two risers. The top of the riser is provided with a top cover.

[0007] Preferably, a water seal groove is provided on the smoke guide hole, a water seal cover is provided on the water seal groove, and a hydraulic lifting mechanism for opening and closing the water seal cover is provided on the riser; when guiding smoke, the hydraulic lifting mechanism lifts the water seal cover into the riser above the horizontal guide tube.

[0008] Preferably, the hydraulic lifting mechanism includes: Hydraulic cylinder one is fixed on the bracket above the riser; A gripping rod, the top of which is fixedly connected to the output end of a hydraulic cylinder. The grab hook frame is located at the bottom of the grab bar and is used to engage with the cover handle at the top of the water seal cover.

[0009] Preferably, the top cover is provided with a guide rod sleeve, the grab rod passes through the guide rod sleeve, a sealing ring is provided inside the guide rod sleeve, and a top plate that cooperates with the sealing ring is provided on the grab rod; when guiding smoke, the hydraulic lifting mechanism lifts the water seal cover until the top plate abuts against the sealing ring, and the gap between the guide rod sleeve and the grab rod is sealed by the sealing ring.

[0010] Preferably, the horizontal guide tube is provided with a branch pipe that communicates with the flue gas treatment pipeline at the front end of the dust collector, and the branch pipe is provided with a residual smoke recovery valve; when the smoke is guided, the residual smoke recovery valve is closed; when the smoke is guided and the water seal cover is reset, the residual smoke recovery valve is opened, and the residual smoke in the middle M tube and the coke side N tube enters the flue gas treatment pipeline through the branch pipe.

[0011] Preferably, the negative pressure fan uses a variable frequency motor as its power source, a gate valve is installed at the bottom of the dust collector's hopper, and the outlet of the negative pressure fan is connected to a chimney.

[0012] Preferably, the bottom of the walking platform is provided with multiple walking wheels, which move on a V-shaped walking track; a walking motor and a reducer are fixed at the bottom of the walking platform, the walking motor drives the walking wheels to rotate through the reducer, and a brake system is provided on the output shaft of the motor.

[0013] Preferably, the cooling water tank includes a tank body and multiple air guide pipes disposed within the tank body. The air guide pipes are submerged in water within the tank body. The cooling water tank is equipped with a cooling tower and a water pump. The water pump drives the water to circulate between the tank body and the cooling tower to cool the water.

[0014] Preferably, the bottom of the suction pipe is provided with multiple suction nozzles, which are flat nozzles. A cleaning pneumatic valve is provided between the flue gas treatment pipeline and the suction pipe, and a flue gas treatment valve is provided on the pipeline between the coke adsorption tank and the dust collector. During dust collection, the suction pipe is lowered to a certain height at the top of the furnace, the flue gas treatment valve is closed and the cleaning pneumatic valve is opened. The negative pressure fan creates negative pressure in the flue gas treatment pipeline, causing the suction nozzles to draw dust from the tamped coke oven surface to the dust collector.

[0015] The beneficial effects of this invention are as follows: The smoke guide car designed in this invention has multiple functions. During coal loading in the carbonization chamber, the middle M-pipe and coke-side N-pipe on the smoke guide car descend and cover the corresponding smoke guide holes in the carbonization chamber, connecting the inner cavity of the coal-loading carbonization chamber with several adjacent carbonization chambers with higher negative pressure. This allows the negative pressure to be transferred to the coal-loading carbonization chamber when the gas system extracts gas from these chambers, thus extracting the flue gas generated during coal loading and preventing leakage. During the cooling of the carbonization chamber, the smoke guide hood can be placed over the riser pipe. By opening the riser pipe cover and starting the negative pressure fan, the smoke gas escaping from the riser pipe can be drawn in through the smoke guide hood. The automatic igniter ignites the combustible gas in the riser pipe, and the combustible smoke enters the cooling water tank through the smoke guide hood and connecting pipes, reducing the temperature from... The temperature drops from approximately 900 degrees Celsius to approximately 100 degrees Celsius, then flows through a connecting pipe into a coke adsorption tank to remove tar from the flue gas. Next, it enters a dust collector to remove particulate matter. Finally, it passes through a negative pressure fan and is discharged through a chimney, solving the flue gas pollution problem during oven cooling. Simultaneously, a dust suction pipe is installed below the traveling platform. The pipe's lifting and lowering are controlled by a hydraulic cylinder, and it is equipped with multiple suction nozzles. The pipe connects to the dust collector via a flexible hose. The negative pressure suction generated by the negative pressure fan draws dust from the oven roof through these nozzles, achieving dust recovery and cleaning. This solves the problem of existing tamping coke ovens being unable to effectively manage the escaping dust and dust from the coke-side oven head, machine-side oven head, and riser pipes, as well as the cleanliness of the oven roof during coke pushing and coal charging.

[0016] In this invention, the horizontal guide tubes of the M-tube in the middle row and the N-tube on the coke side are connected to the front end of the dust collector through branch pipes. After the hydraulic lifting mechanism puts the water seal cover back on the smoke guide hole, the residual smoke in the vertical and horizontal guide tubes can be drawn into the dust collector for filtration through the branch pipes, thus solving the problem of residual smoke pollution.

[0017] The present invention incorporates an automatic igniter inside the smoke hood, which can ignite the combustible gas in the flue gas emitted from the riser pipe, thus preventing the combustible gas from entering the dust collector without complete combustion and preventing the dust collector from exploding internally. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view structural diagram of a multi-functional smoke guiding vehicle for tamping coke ovens provided in an embodiment of the present invention.

[0020] Figure 2 This is a diagram showing the correspondence between the M-tubes in the middle row and the carbonization chamber in this invention.

[0021] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0022] Figure 4 This is a top view of a multi-functional flue gas guiding vehicle for tamping coke ovens, provided as an embodiment of the present invention.

[0023] Figure 5 This is a right-side structural schematic diagram of a multi-functional smoke guiding vehicle for tamping coke ovens provided in an embodiment of the present invention.

[0024] Figure 6 for Figure 5 A magnified view of a section at point B in the middle.

[0025] Figure 7 This is a schematic diagram showing the correspondence between the N-tube on the coke side and the carbonization chamber in a multi-functional smoke guiding car for a tamping coke oven, provided as an embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the N-tube on the coke side in this invention.

[0027] Explanation of reference numerals in the attached figures: 1. Lifting cylinder; 2. Dust suction nozzle; 3. Smoke guide sleeve; 4. Furnace drying hook; 5. Travel motor; 6. Travel wheels; 7. Reducer; 8. Cooling water tank; 9. Ascension pipe; 10. Negative pressure fan; 11. Chimney; 12. Middle row M-tube; 121. Vertical pipe; 122. Horizontal guide pipe; 123. Top cover; 13. Hydraulic lifting mechanism; 131. Hydraulic cylinder one; 132. Grab bar; 133. Grab hook frame; 14. Dust collector; 15. 16. Ash hopper, 17. Slide valve, 18. Backflush system, 19. Movable support, 20. Smoke hood, 21. Dust suction pipe, 22. Water tank inlet pipe, 23. Coke adsorption tank, 24. Dust removal inlet pipe, 25. Movable track, 26. Fan outlet pipe, 27. Coke side N pipe, 28. Horizontal push support, 29. Power distribution room, 30. Horizontal push cylinder, 31. Hydraulic station, 32. Water seal trough, 33. Water seal cover, 34. Cover handle. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1: like Figures 1 to 8 As shown, Embodiment 1 of the present invention provides a multi-functional flue gas guide car for a tamping coke oven, including a traveling platform. The traveling platform is equipped with a central M-tube 12, a coke-side N-tube 26, a flue gas hood 19, a flue gas treatment system, and a dust extraction pipe 20. The traveling platform has the ability to move along two tracks fixed to the top of the tamping coke oven, thereby driving the entire flue gas guide car to move. This allows the flue gas guide car to be flexibly positioned at different locations on the top of the oven, performing operations such as coal charging, flue gas guidance, and oven cooling in a specific sequence.

[0030] Four sets of wheels 6 are rotatably mounted on the bottom of the walking platform, with two sets of wheels 6 corresponding to each walking track. Each set of wheels 6 contains two wheels. Of these eight wheels 6, two are driving wheels, and the rest are driven wheels. These wheels 6 move smoothly on the V-shaped walking track, avoiding deviation. A walking motor 5 and a reducer 7 are fixed at the bottom of the walking platform to drive the driving wheels. The walking motor 5 drives the driving wheels through the reducer 7, achieving precise walking control. A brake system is also installed on the motor's output shaft to provide reliable deceleration and braking functions, preventing the smoke guide vehicle from losing control on slopes or in emergency situations.

[0031] A typical coke oven has dozens of carbonization chambers. Each chamber has a coke-side flue gas vent, a middle row of flue gas vents, and a riser pipe 9 at its top. The riser pipe 9 is connected to the gas system and is used to vent the gas generated during the carbonization process. Both the coke-side and middle row of flue gas vents are equipped with water seal structures. Specifically, each flue gas vent has a water seal groove 31 filled with water. A water seal cover 32 covers the water seal groove 31, sealing the flue gas vents. The bottom edge of the water seal cover 32 is inserted into the water, using the water to isolate the air, thus isolating the gas inside the carbonization chamber from the outside gas and preventing gas leakage. A cover handle 321 is fixed to the water seal cover 32.

[0032] A support frame is fixed on the traveling platform, and two hydraulic cylinders are fixed on the support frame. The middle row M-tube 12 is controlled by the two hydraulic cylinders to raise and lower on the traveling platform, ensuring smooth raising and lowering of the middle row M-tube 12. The middle row M-tube 12 is equipped with three risers 121 corresponding to the middle row smoke guide holes of carbonization chambers N-1, N, and N+2, respectively, and a horizontal guide tube 122 connecting the three risers 121. The horizontal guide tube 122 is perpendicular to the risers 121.

[0033] The coke-side N-tube 26 is mounted on a traveling platform via a movable support 18. A movable rail 24 is fixed on the traveling platform, and the movable support 18 slides on the movable rail 24. A horizontal push support 27 is fixed on the traveling platform, and a horizontal push cylinder 29 is fixed on the horizontal push support 27. The horizontal push cylinder 29 is used to drive the movable support 18 to move on the movable rail 24, thereby adjusting the position of the coke-side N-tube 26 laterally when needed. The coke-side N-tube 26 is provided with two risers 121 corresponding to the smoke guide holes on the N-type carbonization chamber and the N+4-type carbonization chamber, respectively, and a horizontal guide tube 122 connecting the two risers 121. The horizontal guide tube 122 is also perpendicular to the risers 121. Two hydraulic cylinders are also fixed on the movable support 18 to control the smooth raising and lowering of the coke-side N-tube 26.

[0034] Both the middle M-tube 12 and the coke-side N-tube 26 are equipped with hydraulic lifting mechanisms 13 for raising the water seal covers 32 on the smoke guide holes. With this configuration, when the traveling platform moves to a certain position, the three risers 121 of the middle M-tube 12 correspond precisely to the middle smoke guide holes on carbonization chambers N-1, N, and N+2. By controlling the raising and lowering of the middle M-tube 12, the risers 121 cover the corresponding water seal grooves 31, and the hydraulic lifting mechanism 13 raises the water seal covers 32 to a height above the horizontal guide tube 122, thus connecting carbonization chambers N-1 and N+2 with carbonization chamber N. Similarly, when the coke-side N-tube 26 also descends and covers the coke-side smoke guide holes on carbonization chambers N and N+4, the hydraulic lifting mechanism 13 raises the water seal covers 32 to a height above the horizontal guide tube 122, thus connecting carbonization chamber N+4 with carbonization chamber N.

[0035] When the gas system is operating normally, the riser pipe 9 of the carbonization chamber generates suction. The negative pressure generated by the riser pipes 9 of carbonization chambers N-1, N+2, and N+4 is transmitted through the middle M pipe 12 and the coke side N pipe 26, effectively extracting the flue gas drifting in carbonization chamber N and preventing the flue gas from escaping and polluting the environment. At the same time, high-pressure ammonia water is also injected into the riser pipe 9 of the corresponding carbonization chamber to further enhance the negative pressure, increase suction, further enhance the flue gas extraction effect, and reduce the emission of smoke and dust from carbonization chamber N during the coal loading process.

[0036] It should be noted that the carbonization chambers corresponding to the middle M-tube 12 and the coke-side N-tube 26 can be adaptively adjusted according to the actual production process. A carbonization chamber adjacent to carbonization chamber N with good negative pressure can be selected for connection, thereby ensuring effective dust extraction while maintaining low ammonia and energy consumption. In this embodiment, there are 65 carbonization chambers. The above-described operation method is used when N ranges from 2 to 61. When N is 1, since the middle riser of the middle M-tube cannot be used to connect to carbonization chamber 1, the three risers of the M-tube correspond to carbonization chambers 1, 2, and 4, respectively. Similarly, when discharging coal into the last three carbonization chambers, the moving support needs to be displaced to reverse the movement of the coke-side N-tube, connecting carbonization chamber N-4 with carbonization chamber N. Simultaneously, the three risers of the middle M-tube correspond to carbonization chambers N, N-2, and N-3, respectively.

[0037] A smoke guide sleeve 3 is installed on the traveling platform, and a smoke guide hood 19 is slidably mounted on the smoke guide sleeve 3. The smoke guide hood 19 is driven by a hydraulic mechanism to rise and fall on the smoke guide sleeve 3. A hydraulic mechanism is also provided on the traveling platform to control the rotation of the smoke guide sleeve 3 on the platform, ensuring that the smoke guide hood 19 is accurately positioned above the riser pipe 9. When the traveling platform moves to a certain position, the smoke guide hood 19 descends and covers the riser pipe 9 of the carbonization chamber to be cooled. Before covering the riser pipe 9, the pipe cover at the top of the riser pipe 9 needs to be opened. To facilitate air entry into the carbonization chamber to be cooled, a cooling hook 4 corresponding to the smoke guide hood 19 is also provided on the traveling platform for lifting the water seal cover 32 of the coke side smoke guide hole. Outside air can enter the carbonization chamber through the coke side smoke guide hole and enter the smoke guide hood 19 through the riser pipe 9. The purpose of cooling is to lower the temperature of the carbonization chamber before coal charging.

[0038] An automatic igniter is installed inside the smoke hood 19, which ignites the combustible gas emitted from the riser pipe 9 during smoke extraction, preventing unburned gas from entering the subsequent treatment system and causing safety hazards. Figure 4 As shown, the flue gas treatment system is installed on the walking platform and includes a cooling water tank 8, a coke adsorption tank 22, a bag filter 14, and a negative pressure fan 10. The water tank inlet pipe 21 of the cooling water tank 8 is connected to the flue gas guide sleeve 3. The dust removal inlet pipe 23 of the dust collector 14 is connected to the coke adsorption tank 22. The fan outlet pipe 25 of the negative pressure fan 10 is connected to the chimney 11. When the negative pressure fan 10 is started, the flue gas drifting from the riser pipe 9 passes sequentially through the flue gas treatment pipeline consisting of the flue gas guide hood 19, cooling water tank 8, coke adsorption pipe, dust collector 14, negative pressure fan 10, and chimney 11, and is discharged after completing cooling, tar removal, and dust removal treatment.

[0039] The negative pressure fan 10 uses a variable frequency motor to dynamically adjust its power, providing negative pressure power for the entire flue gas treatment pipeline. The chimney 11 itself also plays a certain role in air extraction, reducing the power required by the negative pressure fan 10. The cooling water tank 8 includes a tank body and multiple air guide pipes fixed inside the tank body. The air guide pipes are submerged in water inside the tank body, achieving rapid cooling of the flue gas, which can reduce the temperature of flue gas from about 900 degrees Celsius to about 100 degrees Celsius. At the same time, the cooling water tank 8 is also equipped with a cooling tower and a water pump. The water pump drives the water to circulate on the tank body and the cooling tower, continuously cooling the water and maintaining cooling efficiency.

[0040] The coke adsorption tank 22 is used to adsorb tar components in the flue gas, preventing tar from clogging downstream equipment. The dust collector 14 removes particulate matter, ensuring that the emitted gas meets environmental protection standards. The bottom of the ash hopper 15 of the dust collector 14 is equipped with a gate valve 16 for easy periodic discharge of dust. The dust collector 14 is also equipped with a back-flushing system 17, which uses a separate air compressor and a combination of pulse valves and offline valves installed within the dust collector 14 to back-flush the filter bags using gas pulses, achieving self-cleaning of the dust collector 14.

[0041] To effectively clean the dust from the top of the coke oven, a suction pipe 20 is installed at the bottom of the walking platform. The suction pipe 20 is raised and lowered by a lifting cylinder 1. The suction pipe 20 is connected to the pipeline between the dust collector 14 and the coke adsorption tank 22 via a flexible hose and is equipped with a cleaning pneumatic valve. Multiple suction nozzles 2 are located at the bottom of the suction pipe 20; these nozzles are flat-nozzle designed to increase suction power. A flue gas treatment valve is also installed on the pipeline between the coke adsorption tank 22 and the dust collector 14. During dust collection, the suction pipe 20 descends to a certain height above the oven top, then the flue gas treatment valve is closed and the cleaning pneumatic valve is opened. The negative pressure fan 10 creates negative pressure within the flue gas treatment pipeline, allowing airflow only through the suction nozzles 2 into the dust collector 14. The suction nozzles 2, close to the oven top, suck up the dust from the top and transfer it to the dust collector 14, achieving effective cleaning of the oven top.

[0042] With the above-mentioned configuration, the smoke guide car of the present invention integrates the functions of oven cooling, coal charging smoke guide and oven top dust cleaning. It can collect and treat the scattered smoke and dust and oven top sanitation at the oven head, coke side oven head and riser pipe 9 in the process of coke pushing, coal charging and oven cooling, thereby improving environmental protection performance and operational efficiency.

[0043] Example 2: Based on Embodiment 1, Embodiment 2 of the present invention further optimizes the hydraulic lifting mechanism 13 of the middle M tube 12 and the coke side N tube 26 to improve the sealing performance during the smoke guiding process.

[0044] like Figure 2 and Figure 3As shown, the hydraulic lifting mechanism 13 of this invention includes a hydraulic cylinder 131 fixed on a support above the riser 121, a gripping rod 132 whose top is fixedly connected to the output end of the hydraulic cylinder 131, and a gripping hook frame 133 fixed to the bottom of the gripping rod 132. The gripping hook frame 133 has a through groove that mates with the cover handle 321 on the top of the water seal cover 32. When the hydraulic cylinder 131 extends to a certain length, the height of the gripping hook frame 133 matches the cover handle 321. The structure of the furnace-cooling gripping hook 4 is the same as that of the hydraulic lifting mechanism 13. When the traveling platform moves, the gripping hook frame 133 can fit the cover handle 321 into the through groove for precise gripping. During smoke ducting, hydraulic cylinder 131 retracts, causing hook frame 133 to lift water seal cover 32 until water seal cover 32 is inside riser 121 above horizontal guide tube 122. At this time, water seal cover 32 will not block flue gas from entering horizontal guide tube 122 from riser 121, reducing smoke ducting resistance. At the same time, it can also prevent water seal cover 32 from being burned and oxidized due to long-term contact with high-temperature flue gas, thus extending the service life of the component.

[0045] In addition, a guide rod sleeve is fixed to the top cover 123, through which the grab rod 132 passes. A sealing ring is installed inside the guide rod sleeve, and a top plate that mates with the sealing ring is fixed to the grab rod 132. During flue gas ducting, the hydraulic cylinder 131 lifts the water seal cover 32 until the top plate abuts against the sealing ring. At this point, the gap between the guide rod sleeve and the grab rod 132 is sealed by the sealing ring, preventing outside air from entering the gas system through the gap during negative pressure flue gas ducting and causing negative pressure loss. This sealing structure ensures the airtightness of the flue gas ducting system, improves flue gas extraction efficiency, and reduces potential leakage risks.

[0046] Example 3: Based on Embodiments 1 and 2, this invention further designs a residual smoke recovery system to solve the problem of residual smoke pollution in the middle row M-pipe 12 and coke-side N-pipe 26 after the smoke introduction process. A branch pipe is installed on the horizontal duct 122, connecting to the dust collector 14 and the coke adsorption tank 22. A residual smoke recovery valve is installed on the branch pipe. During coal loading and smoke introduction, the residual smoke recovery valve is closed to ensure that the flue gas flows normally from carbonization chamber N to carbonization chambers N-1, N+2, and N+4. When the smoke introduction ends and the water seal cover 32 is reset, the residual smoke recovery valve is opened to absorb the residual flue gas in the riser 121 and horizontal duct 122. The negative pressure fan 10 draws the residual smoke from the middle row M-pipe 12 and coke-side N-pipe 26 through the branch pipe, allowing the residual smoke to enter the flue gas treatment pipeline and be filtered in the dust collector 14, preventing direct emission of residual smoke and environmental pollution. This residual smoke recovery mechanism effectively captures the gas remaining after smoke introduction, reducing pollution.

[0047] The traveling platform is equipped with a hydraulic station 30 and an electrical distribution room 28, which provide power to the hydraulic mechanisms and electrical equipment on the traveling platform.

[0048] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A multi-functional flue gas guiding vehicle for tamping coke ovens, characterized in that, include: The traveling platform moves along a traveling track fixed to the top of the tamping coke oven; The middle row of M-tubes is lifted and mounted on the traveling platform; The coke-side N-tube is provided with a movable support on the walking platform, and the coke-side N-tube is lifted and lowered on the movable support. A fume hood, installed on the walking platform, is used to cover the riser pipe of the carbonization chamber of the furnace to be cooled. An automatic igniter is installed inside the fume hood. The flue gas treatment system, set on the walking platform, includes a cooling water tank, a coke adsorption tank, a dust collector, and a negative pressure fan. The smoke guide hood, cooling water tank, coke adsorption tank, and dust collector are connected in sequence to form a flue gas treatment pipeline, which cools, removes tar, and removes dust from the flue gas drawn from the riser pipe. The negative pressure fan provides negative pressure power for the flue gas treatment pipeline. The dust suction pipe is lifted and installed on the walking platform and connected to the flue gas treatment pipe at the front end of the dust collector. It is used to suck up the dust from the top of the coke oven. When coal is loaded into carbonization chamber N in the tamping coke oven, the middle row M pipe connects carbonization chambers N-1 and N+2 with carbonization chamber N, and the coke side N pipe connects carbonization chamber N+4 with carbonization chamber N. The gas system extracts flue gas from carbonization chamber N through the middle row M pipe and the coke side N pipe.

2. The multi-functional flue gas guiding car for tamping coke ovens according to claim 1, characterized in that, The middle M-tube is provided with three vertical tubes corresponding to the smoke guide holes on carbonization chambers N-1, N, and N+2, respectively, and a horizontal guide tube connecting the three vertical tubes. The coke side N-tube is provided with two vertical tubes corresponding to the smoke guide holes on carbonization chambers N and N+4, respectively, and a horizontal guide tube connecting the two vertical tubes. The top of the vertical tube is provided with a top cover.

3. The multi-functional flue gas guiding car for tamping coke ovens according to claim 2, characterized in that, A water seal groove is provided on the smoke guide hole, and a water seal cover is provided on the water seal groove. A hydraulic lifting mechanism for opening and closing the water seal cover is provided on the riser. When guiding smoke, the hydraulic lifting mechanism lifts the water seal cover into the riser above the horizontal guide tube.

4. The multi-functional flue gas guiding vehicle for tamping coke ovens according to claim 3, characterized in that, The hydraulic lifting mechanism includes: Hydraulic cylinder one is fixed on the bracket above the riser; A gripping rod, the top of which is fixedly connected to the output end of a hydraulic cylinder. The grab hook frame is located at the bottom of the grab bar and is used to engage with the cover handle at the top of the water seal cover.

5. A multi-functional flue gas guiding vehicle for tamping coke ovens according to claim 4, characterized in that, The top cover is provided with a guide rod sleeve, and the grab rod passes through the guide rod sleeve. A sealing ring is provided inside the guide rod sleeve, and a top plate that cooperates with the sealing ring is provided on the grab rod. When the smoke is guided, the hydraulic lifting mechanism lifts the water seal cover until the top plate abuts against the sealing ring, and the gap between the guide rod sleeve and the grab rod is sealed by the sealing ring.

6. The multi-functional flue gas guiding car for tamping coke ovens according to claim 2, characterized in that, The horizontal guide tube is provided with a branch pipe that connects to the flue gas treatment pipeline at the front end of the dust collector. The branch pipe is provided with a residual smoke recovery valve. When the flue gas is being drawn in, the residual smoke recovery valve is closed. When the flue gas is drawn in and the water seal cover is reset, the residual smoke recovery valve is opened, and the residual smoke remaining in the middle M tube and the coke side N tube enters the flue gas treatment pipeline through the branch pipe.

7. The multi-functional flue gas guiding car for tamping coke ovens according to claim 1, characterized in that, The negative pressure fan uses a variable frequency motor as its power source, and a gate valve is installed at the bottom of the dust collector's hopper. The outlet of the negative pressure fan is connected to a chimney.

8. The multi-functional flue gas guiding car for tamping coke ovens according to claim 1, characterized in that, The bottom of the walking platform is equipped with multiple walking wheels, which move on a V-shaped walking track; a walking motor and a reducer are fixed at the bottom of the walking platform, the walking motor drives the walking wheels to rotate through the reducer, and a brake system is installed on the output shaft of the motor.

9. A multi-functional flue gas guiding car for tamping coke ovens according to claim 1, characterized in that, The cooling water tank includes a tank body and multiple air guide pipes installed inside the tank body. The air guide pipes are submerged in water inside the tank body. The cooling water tank is equipped with a cooling tower and a water pump. The water pump drives the water to circulate between the tank body and the cooling tower to cool the water.

10. A multi-functional flue gas guiding vehicle for tamping coke ovens according to claim 1, characterized in that, The bottom of the suction pipe is equipped with multiple suction nozzles, which are flat nozzles. A cleaning pneumatic valve is installed between the flue gas treatment pipeline and the suction pipe. A flue gas treatment valve is installed on the pipeline between the coke adsorption tank and the dust collector. During dust collection, the suction pipe is lowered to a certain height at the top of the furnace, the flue gas treatment valve is closed and the cleaning pneumatic valve is opened. The negative pressure fan creates negative pressure in the flue gas treatment pipeline, causing the suction nozzles to draw dust from the tamped coke oven surface to the dust collector.

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