Mechanical cleaning device and process for tar residue treatment

Abstract

The invention discloses a mechanical cleaning device and process for tar residue treatment. The device comprises a tar tank, an output pipe fixedly connected to the output end of the tar tank, a first valve body arranged on the output pipe, a long pipe detachably installed at the output end of the output pipe, a large pipe fixedly connected to the output end of the long pipe, a waste gas exhaust pipe arranged on the peripheral wall of the large pipe in a penetrating mode, and a steam generator arranged outside the long pipe. The steam conveying mechanism is arranged on a steam outlet of the steam generator, the first groove body and the second groove body are formed in the wall body of the long pipe, and the tar residue conveying groove is formed in the innermost wall of the long pipe. The device has the advantages that heating is uniform, VOCs are effectively collected, the pipeline anti-blocking and self-cleaning capacity is high, and multi-point collaborative purging can be conducted.

Description

Technical Field

[0001] This invention relates to the field of coking production waste resource utilization and pollution control technology, specifically a mechanized cleaning device and process for treating tar residue. Background Technology

[0002] The tar residue produced in coking production has the characteristics of high viscosity and easy solidification, and its loading, unloading and transportation are common problems in the industry.

[0003] Currently, a simple method combining manual cleaning with direct steam purging is commonly used. However, in actual purging processes, high-viscosity tar residue has extremely poor flowability in pipes and equipment, easily leading to system blockage. Furthermore, conventional heating methods result in uneven heat transfer, failing to effectively reduce the core viscosity of the material. Secondly, during loading and unloading, volatile organic compounds (VOCs) easily escape unorganized from open openings such as manholes and buffer tanks, causing environmental pollution and safety risks. In addition, before system startup, residual cold tar residue in the pipes can solidify and block the flow channels, causing a surge in equipment starting torque or even motor overload. Moreover, existing steam purging methods are mostly unidirectional, resulting in poor purification effects on longer pipes, and lack effective internal cleaning and directional gas exhaust mechanisms.

[0004] In summary, existing technologies lack an integrated device and process that can systematically solve the problems of uniform heating of tar residue, effective collection of VOCs, pipeline anti-clogging and internal self-cleaning, and multi-point coordinated purging, resulting in low operating efficiency, high environmental load and safety hazards. Summary of the Invention

[0005] The purpose of this invention is to provide a mechanized cleaning device and process for treating tar residue, which has the advantages of uniform heating, effective VOCs collection, strong pipeline anti-clogging and self-cleaning capabilities, and the ability to perform multi-point coordinated purging, thus solving the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A mechanized cleaning device for treating tar residue includes a tar tank, an output pipe fixed to the output end of the tar tank, a first valve body disposed on the output pipe, a long pipe detachably installed at the output end of the output pipe, a large pipe fixed to the output end of the long pipe, a waste gas discharge pipe extending through the outer peripheral wall of the large pipe, a steam generator disposed outside the long pipe, a steam conveying mechanism disposed at the steam outlet of the steam generator, a first tank and a second tank formed within the wall of the long pipe, a tar residue conveying trough formed within the innermost wall of the long pipe, and a device extending through the inner wall of the first tank for connecting the first tank and... The tar residue conveying trough includes a steam input trough, a first conveying mechanism installed on the inner wall of the tar residue conveying trough, multiple one-way valves installed through the inner wall of the tar residue conveying trough, an exhaust mechanism installed on the first conveying mechanism, an exhaust gas guiding mechanism installed on the inner wall of the main pipe, a drive mechanism installed on the exhaust gas guiding mechanism, and an output trough fixed to the lower end of the main pipe for discharging material. The output trough is equipped with a second conveying mechanism. The input end of the second conveying mechanism is connected to the output end of the first conveying mechanism through a transmission mechanism. The main pipe is equipped with a pushing mechanism for pushing the material output from the long pipe into the output trough. The two outlets of the steam conveying mechanism are connected to the first tank and the second tank respectively. The first tank and the second tank are not connected to each other. The inlet of the one-way valve is connected to the second tank, and the outlet of the one-way valve is connected to the tar residue conveying tank. A fixed pipe is fixedly connected through the inner wall of the second tank to one end near the main pipe. A fourth valve body is provided on the fixed pipe. A block is provided on the first conveying mechanism to block the air outlet of the fixed pipe. When the block moves with the rotation of the first rotating rod, the block releases the block from blocking the air outlet of the fixed pipe.

[0007] Preferably, the steam conveying mechanism includes an injection pipe with one end fixed to the steam outlet of the steam generator, a diversion pipe that is fixed through to the side wall of the injection pipe, a third valve body disposed on the diversion pipe, and a second valve body disposed on the injection pipe. The interior of the injection pipe and the interior of the second tank are interconnected, and the interior of the diversion pipe and the interior of the first tank are interconnected.

[0008] It is worth noting that the steam conveying mechanism achieves precise control of the steam flow direction by setting up an injection pipe, a diversion pipe and matching valves. Operators can flexibly select radial multi-point purging, axial forward purging or compound purging modes by opening and closing the second and third valves, which significantly improves the adaptability and cleaning efficiency for tar residues of different viscosities.

[0009] Preferably, the first conveying mechanism includes two first supports fixed to the top surface of the inner wall of the tar residue conveying trough, a first rotating rod rotatably mounted on the two first supports, a sleeve fixed to the side wall of the first rotating rod, and a first auger fixed to the side wall of the sleeve.

[0010] It is worth noting that the first conveying mechanism adopts a combination structure of a rotating rod supported by a support, a sleeve, and an auger. It is stable in operation and has a strong load-bearing capacity. The design of the sleeve not only provides an installation foundation, but its internal cavity also forms an axial steam conveying channel, realizing the integration of mechanical conveying and steam heating. When the first auger rotates, it can continuously scrape off and convey the tar residue attached to the pipe wall, which can effectively prevent the pipe wall from scaling.

[0011] Preferably, the air outlet mechanism includes an air inlet hole that extends through one end of the sleeve and multiple air outlet grooves that are formed on the outer peripheral wall of the air inlet hole. Any one of the air outlet grooves is interconnected with the air inlet hole, and the air inlet hole is interconnected with the steam input groove.

[0012] It is worth noting that the steam outlet mechanism efficiently introduces steam from the first tank into the core area of ​​the tar residue conveying tank through the air inlet holes and radial steam outlet slots set on the sleeve. Multiple steam outlet slots ensure that the steam can be sprayed out evenly in the circumference, fully preheating and softening the material in front of the auger, and reducing the conveying resistance.

[0013] Preferably, the exhaust gas guiding mechanism includes an exhaust gas discharge cylinder fixed to the inner wall of the large pipe, a second exhaust gas discharge groove that is opened through the outer peripheral wall of the exhaust gas discharge cylinder, an exhaust gas filter body disposed on the inner wall of the exhaust gas discharge cylinder, and an installation cylinder threadedly installed on the inner wall of the exhaust gas discharge cylinder at the end away from the long pipe. The outer peripheral wall of the first rotating rod is in contact with the inner wall of the exhaust gas filter body, and the outer peripheral wall of the first rotating rod is also in contact with the inner wall of the installation cylinder.

[0014] It is worth noting that this exhaust gas guiding mechanism creatively integrates exhaust gas collection, filtration, and rotating rod support functions. The exhaust gas discharge cylinder and its internal exhaust gas filter constitute a highly efficient exhaust gas treatment channel, which can collect and purify volatile substances generated during the process in a timely manner, meeting environmental protection requirements. At the same time, the cylinder structure, through its fit with the end face of the large gear and the design of the mounting cylinder, forms a good dynamic seal with the first rotating rod, which not only ensures that the exhaust gas is effectively guided to the filter, but also prevents exhaust gas leakage, and provides stable radial support for the main drive shaft, ensuring transmission accuracy.

[0015] Preferably, the drive mechanism includes a motor fixed to the exhaust gas discharge cylinder, a small gear fixed to the output shaft of the motor, a sealing block fixed to the outer peripheral wall of the exhaust gas discharge cylinder, and a large gear fixed to the outer peripheral wall of the first rotating rod. The large gear and the small gear mesh with each other. A plurality of first exhaust gas discharge slots are opened through the end of the large gear near the long pipe. The first exhaust gas discharge slots and the interior of the exhaust gas discharge cylinder are interconnected. The ends of the large gear and the exhaust gas discharge cylinder that are close to each other are in contact with each other. A maintenance manhole is fixedly connected through the upper end of the large pipe. An installation cover is threaded on the inner wall of the maintenance manhole. The maintenance manhole and the motor are corresponding in the vertical direction.

[0016] It is worth noting that the drive mechanism adopts gear transmission, which ensures smooth and reliable power transmission. Its innovation lies in designing the large gear as part of the exhaust gas collection structure. The first exhaust gas discharge trough allows the exhaust gas to smoothly enter the subsequent treatment stage, realizing the integration of transmission and exhaust gas guidance functions, simplifying the overall structure. The sealing block ensures the seal between the exhaust gas discharge cylinder and the inside of the large pipe. The setting of the maintenance well facilitates the daily inspection, maintenance or replacement of the motor and gear transmission components, greatly improving the convenience of equipment maintenance and reducing long-term operation and maintenance costs.

[0017] Preferably, the pushing mechanism includes a cylinder fixed to one end of the large pipe near the long pipe and a push block fixed to the output shaft of the cylinder. The bottom surface of the push block is in contact with the bottom surface of the inner wall of the large pipe. The second conveying mechanism includes two second supports fixed to the top surface of the inner wall of the output slot, a second rotating rod rotatably mounted on the two second supports, and a second auger fixed to the side wall of the second rotating rod. The inside of the output slot and the inside of the large pipe are interconnected.

[0018] It is worth noting that the combined design of the pushing mechanism and the second conveying mechanism effectively solves the problem of bridging or accumulation that may occur when materials are transferred from the main pipe to the output trough. The cylinder-driven pusher can reciprocate to actively and reliably push the material that falls to the bottom of the main pipe to the feed inlet of the output trough. The second conveying mechanism outputs the material stably through the rotation of the second auger.

[0019] Preferably, the transmission mechanism includes a first transmission disc fixed to the outer peripheral wall of the second rotating rod, a second transmission disc fixed to the outer peripheral wall of the first rotating rod, and a transmission belt sleeved on the middle of the outer peripheral wall of the first transmission disc. The first transmission disc and the second transmission disc are rotatably connected by the transmission belt. A bracket is fixed to the end of the large tube away from the long tube. A limiting cylinder is fixed to the bracket. The inner wall of the limiting cylinder is in contact with the outer peripheral wall of the first rotating rod.

[0020] It is worth noting that this transmission mechanism uses a belt drive to simultaneously drive the first and second conveying mechanisms with a single power source, simplifying the power system configuration and reducing manufacturing costs and energy consumption. The combination of the transmission disc and the transmission belt enables power transmission between non-collinear shafts, offering a flexible layout. The bracket and the limiting cylinder provide additional radial support for the far end of the first rotating rod, effectively improving the operational stability of the long shaft system, reducing vibration and wear, ensuring the smoothness of the auger conveyor, and thus extending the service life of the equipment.

[0021] Preferably, both the first and second grooves are annular grooves.

[0022] It is worth noting that the annular groove structure ensures that steam can be continuously and stably supplied through the steam input groove or each one-way valve, regardless of the rotational position of the first rotating rod and the sleeve.

[0023] The present invention also provides a mechanized cleaning process for treating tar residue, comprising a mechanized cleaning device for treating tar residue as described above, the steps of which are as follows: S1. Equipment preparation and feeding The detachable end of the long tube is connected to the output tube of the tar tank by bolts; When the first valve is opened, the tar residue in the tar tank enters the tar residue conveying trough inside the long pipe through the output pipe under gravity or system pressure. S2. Start the steam system and select the steam mode. Start the steam generator to produce high-temperature, high-pressure steam; Steam is delivered through the injection pipe. Operators, based on cleaning requirements, select one or more of the following steam modes by operating the second and third valves: Mode 1: Radial multi-point purging Operation: Open the second valve body and close the third valve body; Path: Steam enters the second tank directly through the injection pipe → When the pressure inside the chamber accumulates to exceed the opening pressure of the check valve, the steam opens multiple check valves along the way, and then the steam is injected into the tar residue conveying tank from multiple points. Mode 2: Axial forward purging Operation: Close the second valve body and open the third valve body; Path: After the steam passes through the injection pipe, it enters the first tank through the diversion pipe, then through the steam input tank, and finally enters the air inlet of the sleeve and is ejected from multiple air outlets. Mode 3: Composite purging Operation: Simultaneously open the second and third valve bodies, and perform axial forward purging and radial multi-point purging simultaneously; S3, Activate reverse blowing mode During operation in mode two or mode three, if there is steam in the second tank, and it is determined that there is a risk of blockage at the long pipe or interface or that more thorough cleaning is required, the fourth valve can be opened. At this time, the steam path is as follows: some of the steam in the second tank is injected into the interior of the large pipe after passing through the fixed pipe, forming a reverse purging from the large pipe to the long pipe. When the first conveying mechanism rotates, the stop block on it will periodically sweep across the opening of the fixed pipe; S4, Mechanical Conveying and Transmission The motor of the drive mechanism is started, and the output shaft of the motor drives the small gear to rotate. The small gear drives the large gear through meshing, thereby driving the first rotating rod and the sleeve and the first auger mounted on it to rotate together. When the first screw conveyor rotates, it steadily transports the tar residue that has been softened by steam forward, allowing it to enter the large pipe from the long pipe. S5. Waste Gas Collection and Treatment The volatile oil and water vapors generated during the cleaning process flow forward under the slight positive pressure of the system. The exhaust gas enters the exhaust gas discharge cylinder through the first exhaust gas discharge slot on the large gear. The exhaust gas is filtered and purified by the exhaust gas filter body. The purified gas is collected through the second exhaust gas discharge slot on the exhaust gas discharge cylinder and finally guided to the external treatment system or safely discharged by the exhaust gas discharge pipe. S6. Material collection, pushing, and secondary output The tar residue transported from the long pipe falls to the bottom of the large pipe; The cylinder of the driving mechanism is activated, and the cylinder output shaft drives the push block to reciprocate, pushing the material accumulated at the bottom of the large pipe into the inlet of the output trough. At the same time, the rotation of the first rotating rod drives the second rotating rod and the second auger to rotate through the transmission mechanism. The second auger will ultimately transport the material that falls into the output trough to the designated collection point or the next processing step, completing the entire discharge process; S7, Shutdown and Maintenance After the task is completed, close the second valve body, the third valve body, and the fourth valve body in sequence, then turn off the steam generator, then turn off the drive motor and the push cylinder, and finally close the first feed valve body. Finally, perform regular maintenance on each component.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention achieves flexible and controllable steam purging mode by setting up a steam conveying mechanism consisting of an injection pipe, a diversion pipe, and a valve body, and connecting it with the annular first and second grooves, as well as a one-way valve, a steam input groove, and an exhaust mechanism inside the long pipe wall. Operators can independently select radial multi-point purging, axial forward purging, or composite purging by opening and closing the valves in combination. Steam can uniformly and thoroughly heat and soften high-viscosity tar residue from multiple points and different directions, effectively solving the problems of uneven heat transfer and easy blockage of conventional heating, and significantly improving the fluidity of materials and cleaning efficiency. 2. This invention combines the waste gas collection function with the transmission components through a waste gas guiding mechanism integrated inside the large pipe. Specifically, the large gear in the drive mechanism has a first waste gas discharge slot that connects with the waste gas discharge cylinder, so that the VOCs waste gas generated during the transportation process can be directionally guided to the discharge cylinder containing the waste gas filter for purification, and finally discharged in an organized manner through the waste gas discharge pipe. This design realizes the effective collection and treatment of VOCs during operation, solves the problem of unorganized emission in the prior art, and reduces environmental pollution and safety risks. 3. By setting a baffle on the first conveying mechanism and cooperating with the fixed pipe on the second tank, the present invention realizes the linkage between mechanical conveying and intermittent reverse blowing. When the first rotating rod drives the baffle to rotate away from the opening of the fixed pipe, the steam in the second tank can be intermittently injected into the large pipe, forming a reverse airflow from the large pipe to the long pipe. This design can effectively disperse the slag lumps accumulated at the interface and on the pipe wall, has the ability to self-clean the pipeline, can prevent system blockage, and at the same time reduce the risk of torque surge caused by material solidification when the equipment is started. 4. This invention solves the problem of material accumulation during turning and output by coordinating the design of the pushing mechanism and the second conveying mechanism. The cylinder-driven pusher actively pushes the material falling at the bottom of the large pipe into the output slot, and then the second auger stably outputs the material, ensuring the continuity and reliability of material transfer. At the same time, the transmission mechanism uses a single motor to drive the auger in the long pipe and the output slot simultaneously through belt drive, simplifying the power system and ensuring the stability of the entire device's processing capacity and the economy of energy consumption. Attached Figure Description

[0025] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention; Figure 2 The diagram shown is a three-dimensional structural schematic of the air injection tube of the present invention; Figure 3 The diagram shown is a three-dimensional cross-sectional view of the long tube of the present invention. Figure 4 The diagram shown is a three-dimensional structural schematic of the second groove of the present invention; Figure 5 The diagram shown is a cross-sectional view of the first conveying mechanism of the present invention. Figure 6 The diagram shown is a three-dimensional structural schematic of the air outlet mechanism of the present invention. Figure 7 The diagram shown is a three-dimensional cross-sectional view of the exhaust gas guiding mechanism and the driving mechanism of the present invention. Figure 8 The diagram shown is a three-dimensional structural schematic of the stop block of the present invention; Figure 9 The diagram shown is a three-dimensional structural schematic of the maintenance well casing of the present invention; Figure 10 The diagram shown is a three-dimensional structural schematic of the actuation mechanism of the present invention; Figure 11 The diagram shown is a three-dimensional cross-sectional view of the second conveying mechanism of the present invention. Figure 12 The diagram shown is a three-dimensional structural schematic of the transmission mechanism of the present invention.

[0026] Reference numerals: 1. Tar tank; 2. Output pipe; 3. First valve body; 4. Long pipe; 5. Large pipe; 51. Inspection well shaft; 52. Mounting cover; 6. Exhaust gas discharge pipe; 7. Steam generator; 8. Gas injection pipe; 81. Second valve body; 82. Diverter pipe; 83. Third valve body; 9. First tank; 10. Second tank; 11. Tar residue conveying tank; 12. Check valve; 13. Fixed pipe; 14. Fourth valve body; 15. First support; 16. First rotating rod; 17. Sleeve; 18. First auger; 19. 20. Steam input trough; 21. Air inlet; 22. Air outlet trough; 23. Stop block; 24. Large gear; 25. First exhaust gas discharge trough; 26. Exhaust gas discharge cylinder; 27. Sealing block; 28. Motor; 29. ​​Small gear; 30. Second exhaust gas discharge trough; 31. Exhaust gas filter; 32. Mounting cylinder; 33. Push block; 34. Output trough; 35. Second support; 36. Second rotating rod; 37. Second auger; 38. First transmission disc; 39. Second transmission disc; 40. Transmission belt; 41. Bracket. Detailed Implementation

[0027] 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.

[0028] To address the problems in existing technologies, such as poor tar residue flow leading to system blockage, fugitive VOC emissions polluting the environment, high system start-up torque causing overload, and poor purification effects from long pipeline purging, the following technical solution is proposed. Please refer to [link / reference]. Figures 1-12 ; A mechanized cleaning device for treating tar residue includes a tar tank 1, an output pipe 2 fixed to the output end of the tar tank 1, a first valve body 3 disposed on the output pipe 2, a long pipe 4 detachably installed at the output end of the output pipe 2, a large pipe 5 fixed to the output end of the long pipe 4, a waste gas discharge pipe 6 extending through the outer peripheral wall of the large pipe 5, a steam generator 7 disposed outside the long pipe 4, a steam conveying mechanism disposed at the steam outlet of the steam generator 7, a first trough 9 and a second trough 10 formed within the wall of the long pipe 4, a tar residue conveying trough 11 formed within the innermost wall of the long pipe 4, and a device extending through the inner wall of the first trough 9 for connecting the first trough. The system includes a steam input tank 19 for the tar residue conveying tank 11, a first conveying mechanism installed on the inner wall of the tar residue conveying tank 11, multiple one-way valves 12 installed through the inner wall of the tar residue conveying tank 11, an exhaust mechanism installed on the first conveying mechanism, an exhaust gas guiding mechanism installed on the inner wall of the large pipe 5, a drive mechanism installed on the exhaust gas guiding mechanism, and an output tank 34 fixed to the lower end of the large pipe 5 for discharging material. The output tank 34 is equipped with a second conveying mechanism. The input end of the second conveying mechanism is connected to the output end of the first conveying mechanism through a transmission mechanism. The large pipe 5 is equipped with a pushing mechanism for pushing the material output from the long pipe 4 into the output tank 34. The two outlets of the steam conveying mechanism are connected to the first tank 9 and the second tank 10 respectively. The first tank 9 and the second tank 10 are not connected to each other. The inlet of the one-way valve 12 is connected to the second tank 10. The outlet of the one-way valve 12 is connected to the tar residue conveying tank 11. A fixed pipe 13 is fixedly connected through one end of the inner wall of the second tank 10 near the large pipe 5. A fourth valve body 14 is provided on the fixed pipe 13. A block 22 is provided on the first conveying mechanism to block the air outlet of the fixed pipe 13. When the block 22 moves with the first rotating rod 16, the block 22 releases the block from the air outlet of the fixed pipe 13. In operation, the tar residue output from tar tank 1 is fed into long pipe 4 through output pipe 2. Then, steam generator 7 is turned on, allowing hot steam to be fed into first tank 9 and second tank 10 through air injection pipe 8 and air outlet mechanism. After the steam pressure in second tank 10 reaches a certain level, it will automatically open one-way valve 12 to blow air into the inner wall of tar residue conveying tank 11, achieving multi-point steam purging. In addition, when fourth valve body 14 is opened to connect fixed pipe 13 and large pipe 5, steam will enter large pipe 5 through fixed pipe 13 and then flow into long pipe 4 through large pipe 5. The direction of the blower is reversed. In addition, the steam outlet mechanism can be turned on to send hot steam into the vicinity of the feed end of the long pipe 4 through the first tank 9 and the steam input tank 19, so as to realize the steam input from the long pipe 4 to the large pipe 5. In addition, the drive mechanism can be turned on to make the first conveying mechanism and the second conveying mechanism rotate, so as to output the tar residue in the long pipe 4 and the tar residue in the output tank 34. The push mechanism can be turned on to push the tar residue that falls on the bottom of the inner wall of the large pipe 5 into the output tank 34. In addition, the exhaust gas will be discharged through the exhaust gas guide mechanism and the exhaust gas discharge pipe 6.

[0029] In this embodiment, specifically: the steam conveying mechanism includes an injection pipe 8 with one end fixed to the steam outlet of the steam generator 7, a diversion pipe 82 that is fixed through to the side wall of the injection pipe 8, a third valve body 83 disposed on the diversion pipe 82, and a second valve body 81 disposed on the injection pipe 8. The interior of the injection pipe 8 and the interior of the second tank 10 are interconnected, and the interior of the diversion pipe 82 and the interior of the first tank 9 are interconnected.

[0030] In this embodiment, specifically: the first conveying mechanism includes two first supports 15 fixed to the top surface of the inner wall of the tar residue conveying trough 11, a first rotating rod 16 rotatably mounted on the two first supports 15, a sleeve 17 fixed to the side wall of the first rotating rod 16, and a first auger 18 fixed to the side wall of the sleeve 17.

[0031] In this embodiment, specifically: the air outlet mechanism includes an air inlet 20 that passes through one end of the sleeve 17 and a plurality of air outlet grooves 21 that are opened on the outer peripheral wall of the air inlet 20. Any one of the air outlet grooves 21 is interconnected with the air inlet 20, and the air inlet 20 is interconnected with the steam input groove 19.

[0032] In this embodiment, specifically: the exhaust gas guiding mechanism includes an exhaust gas discharge cylinder 25 fixed to the inner wall of the large pipe 5, a second exhaust gas discharge groove 29 that is opened through the outer peripheral wall of the exhaust gas discharge cylinder 25, an exhaust gas filter 30 disposed on the inner wall of the exhaust gas discharge cylinder 25, and an installation cylinder 31 threadedly installed on the inner wall of the end of the exhaust gas discharge cylinder 25 away from the long pipe 4. The outer peripheral wall of the first rotating rod 16 is in contact with the inner wall of the exhaust gas filter 30, and the outer peripheral wall of the first rotating rod 16 is also in contact with the inner wall of the installation cylinder 31.

[0033] In this embodiment, specifically: the drive mechanism includes a motor 27 fixed to the exhaust gas discharge cylinder 25, a small gear 28 fixed to the output shaft of the motor 27, a sealing block 26 fixed to the outer peripheral wall of the exhaust gas discharge cylinder 25, and a large gear 23 fixed to the outer peripheral wall of the first rotating rod 16. The large gear 23 and the small gear 28 mesh with each other. The end of the large gear 23 near the long pipe 4 is provided with a plurality of first exhaust gas discharge slots 24. The first exhaust gas discharge slots 24 and the exhaust gas discharge cylinder 25 are interconnected. The ends of the large gear 23 and the exhaust gas discharge cylinder 25 that are close to each other are in contact with each other. The upper end of the large pipe 5 is fixedly connected to a maintenance well 51. The inner wall of the maintenance well 51 is threaded with an installation cover 52. The maintenance well 51 and the motor 27 are corresponding in the vertical direction.

[0034] In this embodiment, specifically: the pushing mechanism includes a cylinder 32 fixed to one end of the large pipe 5 near the long pipe 4 and a push block 33 fixed to the output shaft of the cylinder 32. The bottom surface of the push block 33 is in contact with the bottom surface of the inner wall of the large pipe 5. The second conveying mechanism includes two second supports 35 fixed to the top surface of the inner wall of the output groove 34, a second rotating rod 36 rotatably mounted on the two second supports 35, and a second auger 37 fixed to the side wall of the second rotating rod 36. The inside of the output groove 34 and the inside of the large pipe 5 are interconnected.

[0035] In this embodiment, specifically: the transmission mechanism includes a first transmission disc 38 fixed to the outer peripheral wall of the second rotating rod 36, a second transmission disc 39 fixed to the outer peripheral wall of the first rotating rod 16, and a transmission belt 40 sleeved on the middle of the outer peripheral wall of the first transmission disc 38. The first transmission disc 38 and the second transmission disc 39 are rotatably connected through the transmission belt 40. A bracket 41 is fixed to the end of the large tube 5 away from the long tube 4. A limiting cylinder is fixed to the bracket 41, and the inner wall of the limiting cylinder is in contact with the outer peripheral wall of the first rotating rod 16.

[0036] In this embodiment, specifically, both the first groove 9 and the second groove 10 are annular grooves.

[0037] The present invention also provides a mechanized cleaning process for treating tar residue, comprising a mechanized cleaning device for treating tar residue as described above, the steps of which are as follows: S1. Equipment preparation and feeding The detachable end of the long pipe 4 is connected to the output pipe 2 of the tar tank 1 by bolts; When the first valve body 3 is opened, the tar residue in the tar tank 1 enters the tar residue conveying trough 11 inside the long pipe 4 through the output pipe 2 under gravity or system pressure. S2. Start the steam system and select the steam mode. Start steam generator 7 to produce high-temperature, high-pressure steam; Steam is delivered through the injection pipe 8. Based on cleaning requirements, the operator selects one or more combinations of the following steam modes by operating the second valve body 81 and the third valve body 83: Mode 1: Radial multi-point purging Operation: Open the second valve body 81 and close the third valve body 83; Path: Steam enters the second tank 10 directly through the gas injection pipe 8 → When the pressure in the chamber accumulates to exceed the opening pressure of the one-way valve 12, the steam opens multiple one-way valves 12 along the way, and then the steam is injected into the tar residue conveying tank 11 from multiple points. Mode 2: Axial forward purging Operation: Close the second valve body 81 and open the third valve body 83; Path: After steam passes through the injection pipe 8, it enters the first tank 9 through the diversion pipe 82, then through the steam input tank 19, and then enters the air inlet 20 of the sleeve 17 and is ejected from multiple air outlets 21. Mode 3: Composite purging Operation: Simultaneously open the second valve body 81 and the third valve body 83, and perform axial forward purging and radial multi-point purging simultaneously; S3, Activate reverse blowing mode During operation in mode 2 or mode 3, if there is steam in the second tank 10, and it is determined that there is a risk of blockage at the long pipe or interface or that more thorough cleaning is required, the fourth valve 14 can be opened. At this time, the steam path is as follows: some of the steam in the second tank 10 is injected into the interior of the large pipe 5 after passing through the fixed pipe 13, forming a reverse purging from the large pipe 5 to the long pipe 4. When the first conveying mechanism rotates, the stop block 22 on it will periodically sweep across the opening of the fixed pipe 13; S4, Mechanical Conveying and Transmission The motor 27 of the drive mechanism is started. The output shaft of the motor 27 drives the pinion 28 to rotate. The pinion 28 drives the large gear 23 through meshing, thereby driving the first rotating rod 16, the sleeve 17 installed on it, and the first auger 18 to rotate together. When the first screw conveyor 18 rotates, it steadily conveys the tar residue that has been softened by steam forward, so that it enters the large pipe 5 from the long pipe 4. S5. Waste Gas Collection and Treatment The volatile oil and water vapors generated during the cleaning process flow forward under the slight positive pressure of the system. The exhaust gas enters the exhaust gas discharge cylinder 25 through the first exhaust gas discharge slot 24 on the large gear 23. The exhaust gas is filtered and purified by the exhaust gas filter 30. The purified gas is collected through the second exhaust gas discharge slot 29 on the exhaust gas discharge cylinder 25 and finally guided to the external treatment system or safely discharged by the exhaust gas discharge pipe 6. S6. Material collection, pushing, and secondary output The tar residue conveyed from the long pipe 4 falls to the bottom of the large pipe 5; The cylinder 32 of the push mechanism is activated. The output shaft of the cylinder 32 drives the push block 33 to reciprocate, pushing the material accumulated at the bottom of the large pipe 5 into the inlet of the output trough 34. At the same time, the rotation of the first rotating rod 16 drives the second rotating rod 36 and the second auger 37 to rotate through the transmission mechanism. The second auger 37 will finally transport the material that falls into the output tank 34 to the designated collection point or the next processing step, completing the entire discharge process; S7, Shutdown and Maintenance After the task is completed, close the second valve body 81, the third valve body 83, and the fourth valve body 14 in sequence, then close the steam generator 7, then close the drive motor 27 and the push cylinder 32, and finally close the first feed valve body 3. Finally, perform regular maintenance on each component.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A mechanized cleaning device for treating tar residue, characterized in that: The system includes a tar tank (1), an output pipe (2) fixed to the output end of the tar tank (1), a first valve body (3) installed on the output pipe (2), a long pipe (4) detachably installed at the output end of the output pipe (2), a large pipe (5) fixed to the output end of the long pipe (4), a waste gas discharge pipe (6) that runs through the outer periphery of the large pipe (5), a steam generator (7) installed outside the long pipe (4), a steam conveying mechanism installed at the steam outlet of the steam generator (7), a first tank (9) and a second tank (10) opened in the wall of the long pipe (4), a tar residue conveying trough (11) opened in the innermost wall of the long pipe (4), and a through-hole opening in the inner wall of the first tank (9) for connecting the first tank (9). The steam input tank (19) of the tar residue conveying tank (11), the first conveying mechanism set on the inner wall of the tar residue conveying tank (11), the multiple one-way valves (12) set through the inner wall of the tar residue conveying tank (11), the gas outlet mechanism set on the first conveying mechanism, the exhaust gas guiding mechanism set on the inner wall of the large pipe (5), the drive mechanism set on the exhaust gas guiding mechanism, and the output tank (34) fixed to the lower end of the large pipe (5) for material discharge. The output tank (34) is provided with a second conveying mechanism. The input end of the second conveying mechanism is connected to the output end of the first conveying mechanism through the transmission mechanism. The large pipe (5) is provided with a pushing mechanism for pushing the material output from the long pipe (4) into the output tank (34). The two outlets of the steam conveying mechanism are connected to the first tank (9) and the second tank (10) respectively. The first tank (9) and the second tank (10) are not connected to each other. The inlet of the one-way valve (12) is connected to the second tank (10). The outlet of the one-way valve (12) is connected to the tar residue conveying tank (11). The inner wall of the second tank (10) is connected to a fixed pipe (13) through one end near the large pipe (5). The fixed pipe (13) is provided with a fourth valve body (14). The first conveying mechanism is provided with a block (22) for blocking the air outlet of the fixed pipe (13). When the block (22) moves with the first rotating rod (16), the block (22) releases the block from blocking the air outlet of the fixed pipe (13).

2. The mechanized cleaning device for treating tar residue according to claim 1, characterized in that: The steam conveying mechanism includes an injection pipe (8) with one end fixed to the steam outlet of the steam generator (7), a branch pipe (82) fixed through the side wall of the injection pipe (8), a third valve body (83) provided on the branch pipe (82), and a second valve body (81) provided on the injection pipe (8). The interior of the injection pipe (8) and the interior of the second tank (10) are interconnected, and the interior of the branch pipe (82) and the interior of the first tank (9) are interconnected.

3. The mechanized cleaning device for treating tar residue according to claim 2, characterized in that: The first conveying mechanism includes two first supports (15) fixed to the top surface of the inner wall of the tar residue conveying trough (11), a first rotating rod (16) rotatably mounted on the two first supports (15), a sleeve (17) fixed to the side wall of the first rotating rod (16), and a first auger (18) fixed to the side wall of the sleeve (17).

4. The mechanized cleaning device for treating tar residue according to claim 3, characterized in that: The air outlet mechanism includes an air inlet (20) that passes through one end of the sleeve (17) and multiple air outlet grooves (21) that are opened on the outer peripheral wall of the air inlet (20). Any air outlet groove (21) is connected to the air inlet (20), and the air inlet (20) is connected to the steam input groove (19).

5. A mechanized cleaning device for treating tar residue according to claim 4, characterized in that: The exhaust gas guiding mechanism includes an exhaust gas discharge cylinder (25) fixed to the inner wall of the large pipe (5), a second exhaust gas discharge groove (29) that is opened through the outer peripheral wall of the exhaust gas discharge cylinder (25), an exhaust gas filter (30) set on the inner wall of the exhaust gas discharge cylinder (25), and an installation cylinder (31) threadedly installed on the inner wall of the end of the exhaust gas discharge cylinder (25) away from the long pipe (4). The outer peripheral wall of the first rotating rod (16) is in contact with the inner wall of the exhaust gas filter (30), and the outer peripheral wall of the first rotating rod (16) is also in contact with the inner wall of the installation cylinder (31).

6. A mechanized cleaning device for treating tar residue according to claim 5, characterized in that: The drive mechanism includes a motor (27) fixed to the exhaust gas discharge cylinder (25), a small gear (28) fixed to the output shaft of the motor (27), a sealing block (26) fixed to the outer peripheral wall of the exhaust gas discharge cylinder (25), and a large gear (23) fixed to the outer peripheral wall of the first rotating rod (16). The large gear (23) and the small gear (28) mesh with each other. The end of the large gear (23) near the long pipe (4) is provided with multiple first exhaust gas discharge slots (24). The first exhaust gas discharge slots (24) and the exhaust gas discharge cylinder (25) are interconnected. The ends of the large gear (23) and the exhaust gas discharge cylinder (25) are close to each other. The upper end of the large pipe (5) is fixed with a maintenance well (51). The inner wall of the maintenance well (51) is threaded with an installation cover (52). The maintenance well (51) and the motor (27) are corresponding in the vertical direction.

7. A mechanized cleaning device for treating tar residue according to claim 6, characterized in that: The pushing mechanism includes a cylinder (32) fixed to one end of the large pipe (5) near the long pipe (4) and a push block (33) fixed to the output shaft of the cylinder (32). The bottom surface of the push block (33) is in contact with the bottom surface of the inner wall of the large pipe (5). The second conveying mechanism includes two second supports (35) fixed to the top surface of the inner wall of the output groove (34), a second rotating rod (36) rotatably mounted on the two second supports (35), and a second auger (37) fixed to the side wall of the second rotating rod (36). The inside of the output groove (34) and the inside of the large pipe (5) are interconnected.

8. A mechanized cleaning device for treating tar residue according to claim 7, characterized in that: The transmission mechanism includes a first transmission disc (38) fixed to the outer peripheral wall of the second rotating rod (36), a second transmission disc (39) fixed to the outer peripheral wall of the first rotating rod (16), and a transmission belt (40) sleeved on the middle of the outer peripheral wall of the first transmission disc (38). The first transmission disc (38) and the second transmission disc (39) are rotatably connected through the transmission belt (40). A bracket (41) is fixed to the end of the large tube (5) away from the long tube (4). A limiting cylinder is fixed on the bracket (41), and the inner wall of the limiting cylinder is in contact with the outer peripheral wall of the first rotating rod (16).

9. A mechanized cleaning device for treating tar residue according to claim 8, characterized in that: Both the first groove (9) and the second groove (10) are annular grooves.

10. A mechanized cleaning process for treating tar residue, comprising the mechanized cleaning device for treating tar residue as described in claim 9, wherein the steps are as follows: S1. Equipment preparation and feeding The detachable end of the long tube (4) is connected to the output tube (2) of the tar tank (1) by bolts; When the first valve body (3) is opened, the tar residue in the tar tank (1) enters the tar residue conveying tank (11) inside the long pipe (4) through the output pipe (2) under gravity or system pressure. S2. Start the steam system and select the steam mode. Start the steam generator (7) to generate high-temperature and high-pressure steam; Steam is delivered through the injection pipe (8). The operator selects one or more of the following steam modes by operating the second valve body (81) and the third valve body (83) according to the cleaning requirements: Mode 1: Radial multi-point purging Operation: Open the second valve body (81) and close the third valve body (83); Path: Steam enters the second tank (10) directly through the gas injection pipe (8) → When the pressure in the chamber accumulates to exceed the opening pressure of the check valve (12), the steam opens multiple check valves (12) along the way, and then the steam is injected into the tar residue conveying tank (11) from multiple points. Mode 2: Axial forward purging Operation: Close the second valve body (81) and open the third valve body (83); Path: After the steam passes through the injection pipe (8), it enters the first tank (9) through the diversion pipe (82), then through the steam input tank (19), and then enters the air inlet (20) of the sleeve (17) and is ejected from multiple air outlets (21); Mode 3: Composite purging Operation: Simultaneously open the second valve body (81) and the third valve body (83), and perform axial positive purging and radial multi-point purging simultaneously; S3, Activate reverse blowing mode During operation in mode 2 or mode 3, there is steam in the second tank 10. If it is determined that there is a risk of blockage at the long pipe or interface or that more thorough cleaning is required, the fourth valve (14) can be opened. At this time, the steam path is as follows: part of the steam in the second tank (10) is injected into the interior of the large pipe (5) after passing through the fixed pipe (13), forming a reverse purging from the large pipe (5) to the long pipe (4); When the first conveying mechanism rotates, the stop (22) on it will periodically sweep across the opening of the fixed pipe (13); S4, Mechanical Conveying and Transmission The motor (27) of the drive mechanism is started. The output shaft of the motor (27) drives the small gear (28) to rotate. The small gear (28) drives the large gear (23) through meshing, thereby driving the first rotating rod (16) and the sleeve (17) and the first auger (18) mounted on it to rotate together. When the first screw conveyor (18) rotates, it steadily conveys the tar residue that has been softened by steam forward, so that it enters the large pipe (5) from the long pipe (4). S5. Waste Gas Collection and Treatment The volatile oil and water vapors generated during the cleaning process flow forward under the slight positive pressure of the system. The exhaust gas enters the exhaust gas discharge cylinder (25) through the first exhaust gas discharge slot (24) on the large gear (23). The exhaust gas is filtered and purified by the exhaust gas filter (30). The purified gas is collected through the second exhaust gas discharge slot (29) on the exhaust gas discharge cylinder (25) and finally guided to the external treatment system or safely discharged by the exhaust gas discharge pipe (6). S6. Material collection, pushing, and secondary output The tar residue transported from the long pipe (4) falls to the bottom of the large pipe (5); The cylinder (32) of the push mechanism is activated. The output shaft of the cylinder (32) drives the push block (33) to reciprocate, pushing the material accumulated at the bottom of the large pipe (5) into the inlet of the output trough (34). At the same time, the rotation of the first rotating rod (16) drives the second rotating rod (36) and the second auger (37) to rotate through the transmission mechanism. The second auger (37) will finally transport the material that falls into the output tank (34) to the designated collection point or the next processing step, completing the entire discharge process; S7, Shutdown and Maintenance After the task is completed, close the second valve body (81), the third valve body (83), and the fourth valve body (14) in sequence, then close the steam generator (7), then close the drive motor (27) and the push cylinder (32), and finally close the first feed valve body (3). Finally, perform regular maintenance on each component.

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