A waste incineration corrosion and ash accumulation treatment device

Abstract

The application discloses a garbage incineration corrosion and ash deposition treatment device, which is installed on a smoke outlet pipe and comprises a rotating driving mechanism and a scraping mechanism in cooperation. The scraping mechanism comprises a threaded rod arranged vertically in the smoke outlet pipe and a scraping ring tooth capable of ascending and descending in the smoke outlet pipe. The outer circumferential surface of the scraping ring tooth is in contact with the inner wall surface of the smoke outlet pipe. A threaded hole part through which the threaded rod moves is formed in the scraping ring tooth. The rotating driving mechanism is used for driving the threaded rod to rotate so as to drive the scraping ring tooth to ascend and descend and scrape off the ash deposition on the inner wall of the smoke outlet pipe. A plugging mechanism is arranged on the smoke outlet pipe and comprises a cover plate and a lifting driving assembly. The lifting driving assembly is fixed to the outer wall of the top port of the smoke outlet pipe. The cover plate is arranged above the top port of the smoke outlet pipe and is used for covering the smoke outlet pipe under the driving of the lifting driving assembly. The application has the advantages of simple and compact structure, small space occupation, excellent cleaning effect, difficulty in being polluted, easy operation and maintenance and the like.

Description

Technical Field

[0001] This invention relates to the field of flue gas treatment equipment and waste heat recovery technology, specifically to a waste incineration corrosion ash treatment device. Background Technology

[0002] Waste incineration is a process that uses high-temperature thermochemical treatment technology to oxidize and decompose municipal solid waste in a dedicated incinerator, reducing the volume and weight of the waste while simultaneously recovering heat energy for power generation or heating. At the same time, advanced flue gas purification systems strictly control pollutant emissions, making it a modern and environmentally friendly disposal method that combines waste treatment with resource utilization.

[0003] Incineration of waste typically requires specialized incinerators, which generate large amounts of high-temperature flue gas carrying ash. As this flue gas flows through the boiler's heated metal tubes, the ash easily adheres to the tube surface, forming ash deposits. This not only significantly reduces the boiler's thermal efficiency but also causes corrosive components such as chlorides and sulfides in the ash to continuously erode the metal tube walls at high temperatures, leading to thinning, reduced strength, and even tube rupture. Current technologies are inconvenient for treating the ash deposits within the tube walls, leaving the ash and corrosion problems unresolved and severely impacting the incinerator's operational safety and lifespan. Furthermore, if equipment is installed at the tube walls to treat the ash, this cleaning equipment itself is highly susceptible to contamination from the high-temperature flue gas. Therefore, inventing a waste incineration ash treatment device that can effectively clean the corrosion-induced ash deposits from pipe incineration while also being resistant to flue gas contamination and easy to maintain has become a pressing technical problem. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a waste incineration corrosion ash treatment device with simple and compact structure, small space occupation, excellent cleaning effect, not easy to be contaminated, and easy to operate and maintain.

[0005] A waste incineration ash removal device, installed on a flue pipe, includes a cooperating rotary drive mechanism and an ash scraping mechanism. The ash scraping mechanism includes a threaded rod vertically disposed within the flue pipe and scraper ring teeth that can move up and down within the flue pipe. The outer circumferential surface of the scraper ring teeth contacts the inner wall surface of the flue pipe. The scraper ring teeth have threaded holes through which the threaded rod can move. The rotary drive mechanism drives the threaded rod to rotate, thereby causing the scraper ring teeth to move up and down to scrape off the ash accumulated on the inner wall of the flue pipe. The flue pipe is also provided with a sealing mechanism, which includes a connected cover plate and a lifting drive assembly. The lifting drive assembly is fixed to the outer wall at the top port of the flue pipe, and the cover plate is disposed above the top port of the flue pipe to seal the flue pipe under the drive of the lifting drive assembly.

[0006] As a further improvement to the above technical solution: The ash scraping mechanism includes an L-shaped fixing frame. One end of the fixing frame is fixed to the outer wall at the top port of the smoke outlet pipe. The other end of the fixing frame extends into the smoke outlet pipe and is provided with a first bearing seat at its end. The top of the threaded rod is connected to the first bearing seat to rotatably install the threaded rod vertically inside the smoke outlet pipe. A first gear is also provided on the top of the threaded rod for connection with the rotary drive mechanism.

[0007] The smoke outlet pipe has two threaded rods, each with a first gear at its end. The rotary drive mechanism includes a gear ring, a first motor, and a second gear mounted on the drive shaft of the first motor. The inner and outer rings of the gear ring each have a gear section. The gear ring is rotatably located at the top port of the smoke outlet pipe to allow the gear section on the inner ring to mesh with the two first gears. The first motor is fixed to the outer wall of the smoke outlet pipe to allow the second gear to mesh with the gear section on the outer ring of the gear ring. The second gear and the two first gears cooperate to limit the movement of the gear ring.

[0008] A limiting groove is provided on the bottom surface of the toothed ring to allow the top of the smoke outlet pipe to be embedded in the limiting groove. A ball bearing is provided in the limiting groove to allow the toothed ring to rotate at the top of the smoke outlet pipe.

[0009] A protruding smoke guide and limiting strip is fixed on the inner wall of the smoke outlet pipe near the toothed ring. The smoke guide and limiting strip is inclined upward to guide the smoke and reduce the smoke from entering the limiting groove.

[0010] The outer ring wall of the scraper ring tooth is provided with one or more protruding limiting guide blocks, and the inner wall of the smoke outlet pipe is provided with one or more limiting guide grooves corresponding to the positions of the limiting guide blocks. The limiting guide blocks are slidably recessed in the limiting guide grooves to guide and limit the lifting and lowering of the scraper ring tooth.

[0011] The lifting drive assembly includes a second motor, a gear shaft, a rack column, a connecting plate, and a mounting base. The two ends of the gear shaft are rotatably and laterally mounted on the outer wall of the smoke outlet pipe via the mounting base. The rack column is vertically limited and mounted on the mounting base, and meshes with the gear shaft. The cover plate is connected to the top of the rack column via the connecting plate. The drive end of the second motor is connected to the gear shaft to drive the gear shaft to rotate, thereby driving the rack column to move up and down.

[0012] The connecting plate is provided with a second bearing seat for mounting the connecting plate horizontally rotatably on the rack column. The top of the rack column passes through the second bearing seat and is connected to the horizontally arranged gear plate. The bottom of the connecting plate is provided with a vertical third motor. The drive end of the third motor meshes with the gear plate through gear components to drive the connecting plate to rotate around the rack column.

[0013] It also includes a collection box, the side of the flue pipe is connected to the incinerator through a pipe, the bottom of the flue pipe is connected to the top of the collection box, and the collection box is provided with a funnel to collect the scraped ash.

[0014] The collection box is also equipped with a negative pressure adsorption mechanism, which is used to draw air out of the collection box to create negative pressure adsorption so that the accumulated dust above can be quickly settled and collected.

[0015] Compared with the prior art, the advantages of the present invention are as follows: Firstly, the waste incineration corrosion ash treatment device of the present invention utilizes a liftable ash scraping mechanism installed inside the flue pipe and a rotary drive mechanism installed outside the flue pipe to drive the ash scraping mechanism to perform scraping motion. This results in a simple design structure, stable transmission, and while achieving excellent scraping and cleaning effects, it minimizes the pollution impact of flue gas on the rotary drive mechanism and facilitates maintenance and operation of the rotary drive mechanism.

[0016] Secondly, the waste incineration corrosion ash treatment device of the present invention includes a scraping mechanism comprising a cooperating scraping ring tooth and a threaded rod. The scraping ring tooth is a ring-shaped object, which is small in size and occupies a small area, and does not obstruct the exhaust smoke, effectively ensuring excellent waste incineration smoke exhaust effect. At the same time, due to its small occupancy, it will not be contaminated by flue gas and form large-area blockage nodules, resulting in low self-cleaning pressure. Similarly, the threaded rod, being a vertical rod, also has the advantages of small size and small occupancy. Its vertical arrangement does not obstruct the exhaust smoke, effectively ensuring excellent waste incineration smoke exhaust effect. Furthermore, it will not be contaminated by flue gas and form large-area blockage nodules. The repeatedly rising and falling scraping ring tooth also promptly scrapes away contaminants adhering to the threaded rod, further reducing the self-cleaning pressure of the threaded rod.

[0017] Thirdly, the waste incineration corrosion ash treatment device of the present invention has a ring-shaped scraping ring tooth with its outer circumference in 0-degree contact with the inner wall of the flue pipe, resulting in a large contact area. In particular, the repeated scraping from top to bottom makes the cleaning effect excellent.

[0018] Fourth, the waste incineration corrosion ash treatment device of the present invention features a fixed frame design that ensures the stable installation of the threaded rod, thereby guaranteeing the stability of the repeated lifting and lowering scraping operation of the scraper ring. Simultaneously, the design of the fixed frame at the top avoids occupying excessive space inside the flue pipe, ensuring normal flue gas flow and effectively guaranteeing excellent waste incineration results. Furthermore, the L-shaped fixed frame design allows for the formation of an installation space between the fixed frame and the lower flue pipe port, facilitating the installation and rotation of the toothed ring described below. These technical features support and complement each other, forming a functional group of technical features.

[0019] Fifth, in the waste incineration corrosion ash treatment device of the present invention, the second gear and the two first gears respectively limit the toothed ring from the outside and inside, preventing the toothed ring from shifting axially or radially during operation and ensuring stable and reliable transmission. Furthermore, the design of the toothed ring does not occupy too much space at the flue gas outlet port, effectively ensuring the normal flow of flue gas, and thus effectively ensuring excellent waste incineration results.

[0020] Sixth, the waste incineration corrosion ash treatment device of the present invention further incorporates a limiting groove. That is, the toothed ring is not simply supported on the top of the flue pipe, but rather the top end of the flue pipe is embedded within the limiting groove, forming a rotational support structure. A ring of ball bearings is provided within the limiting groove to reduce friction between the toothed ring and the top of the flue pipe, allowing the toothed ring to rotate smoothly on the top of the flue pipe. This structure not only achieves stable installation of the toothed ring but also reduces wear and extends its service life.

[0021] Seventh, in the waste incineration corrosion ash treatment device of the present invention, to prevent dust carried by high-temperature flue gas from entering the limiting groove and affecting the rotation of the toothed ring, a protruding smoke guiding limiting strip is fixed on the inner wall of the flue pipe near the toothed ring. This smoke guiding limiting strip is inclined upwards to form a guiding slope, which guides the rising flue gas to flow towards the center of the flue pipe, thereby reducing the chance of flue gas contacting the limiting groove and effectively protecting the transmission components from pollution and corrosion.

[0022] Eighth, in the waste incineration corrosion ash treatment device of the present invention, the limiting guide block is slidably recessed in the limiting guide groove to prevent the scraper ring teeth from rotating circumferentially under the drive of the threaded rod, ensuring that the scraper ring teeth always rise and fall in a straight line, thus guaranteeing excellent ash scraping effect.

[0023] Ninth, the waste incineration corrosion ash treatment device of the present invention, through the design of the cover, serves three purposes: First, it facilitates the covering of the top of the flue pipe, making it easier to remove ash from the inner wall of the flue pipe and effectively preventing ash from flying away. Second, in certain special operating stages, sealing the top end of the flue pipe can reduce heat loss from the flue pipe and the incinerator, meeting special operational requirements. Third, when incineration is not in operation, it can also prevent external impurities from entering.

[0024] The tenth aspect of this invention is the waste incineration corrosion ash treatment device. The connecting plate rotates horizontally around the rack column, thereby causing the cover plate to rotate and move away from the top of the flue pipe. This special design serves two purposes: first, it provides operating space for the maintenance of internal components; second, during incineration, the cover plate can be removed, preventing it from obstructing the flow of flue gas and effectively ensuring normal flue gas circulation, thus guaranteeing excellent waste incineration results. Simultaneously, it effectively protects the cover plate from contamination and corrosion by high-temperature flue gas.

[0025] Eleventh is the waste incineration corrosion ash treatment device of the present invention, which also includes a collection box. The collection box is equipped with a funnel to collect and hold the scraped-off ash. The ash scraped off by the scraper ring falls into the funnel of the collection box under gravity, facilitating centralized cleaning and avoiding secondary pollution. The inside of the collection box may also be equipped with a negative pressure adsorption mechanism, forming a negative pressure to assist in the rapid settling and collection of the ash above, preventing dust from flying. The filter plate provides ventilation to facilitate negative pressure adsorption while preventing the scraped-off ash from falling and contaminating the negative pressure adsorption mechanism. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the waste incineration corrosion ash treatment device of the present invention.

[0027] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at point A.

[0028] Figure 3 This is a three-dimensional structural schematic diagram of the cooperation between the rotary drive mechanism and the scraping mechanism of the present invention.

[0029] Figure 4 This is a schematic diagram of the internal structure of the waste incineration corrosion ash treatment device of the present invention.

[0030] Figure 5 This is a side view schematic diagram of the waste incineration corrosion ash treatment device of the present invention.

[0031] Figure 6 for Figure 4 A schematic diagram of the enlarged structure at point B.

[0032] The labels in the diagram represent: 1. Smoke outlet pipe; 2. Rotary drive mechanism; 21. Gear ring; 211. Limiting groove; 212. Ball bearing part; 22. First motor; 23. Second gear; 3. Ash scraping mechanism; 31. Threaded rod; 32. Scraper ring tooth; 321. Threaded hole part; 322. Limiting guide block; 33. First gear; 34. Fixing frame; 341. First bearing seat; 4. Sealing mechanism; 41. Cover plate; 42. Lifting drive assembly; 421. Second motor; 422. Gear shaft; 423. Rack column; 424. Connecting plate; 425. Mounting seat; 426. Second bearing seat; 427. Gear disc; 428. Third motor; 429. Gear component; 5. Smoke guide limiting strip; 6. Collection box; 61. Funnel; 7. Negative pressure adsorption mechanism; 71. Filter plate. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to 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 of this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] like Figures 1 to 6As shown, the waste incineration corrosion ash treatment device of this embodiment is installed on the flue pipe 1 and is used to clean the ash carried by the flue gas generated during waste incineration to prevent the ash from accumulating on the inner wall of the flue pipe 1 and corroding the pipe wall. The device mainly includes a cooperating rotary drive mechanism 2 and an ash scraping mechanism 3, which work together to achieve automatic ash removal. The ash scraping mechanism 3 includes a threaded rod 31 vertically arranged inside the flue pipe 1 and a scraper ring tooth 32 that can move up and down inside the flue pipe 1. The outer circumferential surface of the scraper ring tooth 32 contacts the inner wall surface of the flue pipe 1 and is used to scrape off the ash on the inner wall of the flue pipe 1 during the lifting and lowering process. The scraper ring tooth 32 has a threaded hole 321 through which the threaded rod 31 can move, forming a threaded transmission pair; the rotary drive mechanism 2 is used to drive the threaded rod 31 to rotate, thereby driving the scraper ring tooth 32 to lift and lower to scrape off the ash on the inner wall of the flue pipe 1. The specific implementation principle is as follows: During operation, the rotary drive mechanism 2 drives the threaded rod 31 to rotate, thereby driving the scraper ring 32 to move up and down axially along the smoke outlet pipe 1 through threaded transmission, thus scraping away the ash accumulated on the inner wall of the smoke outlet pipe 1. The rotary drive mechanism 2 can drive the threaded rod 31 to rotate in both directions, thereby driving the scraper ring 32 to move up and down repeatedly, repeatedly scraping away the ash accumulated on the inner wall of the smoke outlet pipe 1, resulting in excellent scraping effect. The key innovation of this embodiment lies in setting a liftable ash scraping mechanism 3 inside the smoke outlet pipe 1, and setting a rotary drive mechanism 2 outside the smoke outlet pipe 1 to drive the ash scraping mechanism 3 to perform scraping motion. This allows for excellent scraping and cleaning effect while minimizing the pollution impact of flue gas on the rotary drive mechanism 2, and also facilitates the maintenance and operation of the rotary drive mechanism 2. Regarding the method by which the rotary drive mechanism 2 drives the threaded rod 31 to rotate, it can be described in detail below, or in other embodiments, such as using a motor to directly drive the threaded rod 31 to rotate in both directions; regardless of the driving method, any simple changes made without departing from the above-described technical features should fall within the protection scope of this invention.

[0038] Through the above-mentioned special scientific design, it has the following technical advantages: Firstly, the waste incineration corrosion ash treatment device of the present invention utilizes a liftable ash scraping mechanism 3 installed inside the flue pipe 1 and a rotary drive mechanism 2 installed outside the flue pipe 1 to drive the ash scraping mechanism 3 to perform scraping motion. This results in a simple design structure, stable transmission, and while achieving excellent scraping and cleaning effects, it minimizes the pollution impact of flue gas on the rotary drive mechanism 2, and also facilitates the maintenance and operation of the rotary drive mechanism 2.

[0039] Secondly, the ash scraping mechanism 3 of the present invention includes a cooperating scraping ring tooth 32 and a threaded rod 31. The scraping ring tooth 32 is a ring-shaped object, which is small in size and occupies a small area, and does not obstruct the exhaust smoke, effectively ensuring excellent exhaust smoke effect of waste incineration. At the same time, because it occupies a small area, it will not be contaminated by flue gas and form large-area blockages, and its own cleaning pressure is low. The threaded rod 31, being a vertical rod, also has the advantages of being small in size and occupying a small area. Its vertical setting does not obstruct the exhaust smoke, effectively ensuring excellent exhaust smoke effect of waste incineration. At the same time, it will not be contaminated by flue gas and form large-area blockages. Furthermore, the repeatedly rising and falling scraping ring tooth 32 will also promptly scrape off the contaminants adhering to the threaded rod 31, which also makes the threaded rod 31's own cleaning pressure low.

[0040] Third, the scraping ring teeth 32 of the present invention are ring-shaped, and their outer circumferential surface is in 360-degree contact with the inner wall of the smoke outlet pipe 1, resulting in a large contact area. In particular, the cleaning effect is excellent due to repeated scraping up and down.

[0041] like Figures 1 to 3 As shown, in this embodiment, the ash scraping mechanism 3 includes an L-shaped fixing frame 34. One end of the fixing frame 34 is fixed to the outer wall at the top port of the smoke outlet pipe 1, and the other end of the fixing frame 34 extends into the smoke outlet pipe 1 and is provided with a first bearing seat 341 at the end. The top of the threaded rod 31 is connected to the first bearing seat 341 to rotatably install the threaded rod 31 vertically in the smoke outlet pipe 1. A first gear 33 is also provided on the top of the threaded rod 31. The first gear 33 is fixedly connected to the threaded rod 31 and is used to connect with the rotary drive mechanism 2 to drive the threaded rod 31 to rotate.

[0042] The design of the fixing bracket 34 ensures the stable installation of the threaded rod 31, thereby guaranteeing the stability of the scraper ring 32 during repeated lifting and scraping operations. Simultaneously, the design of installing the fixing bracket 34 at the top avoids occupying excessive space inside the flue pipe 1, ensuring normal flue gas flow and effectively guaranteeing excellent waste incineration results. Furthermore, the L-shaped design of the fixing bracket 34 allows for the creation of installation space between the fixing bracket 34 and the lower flue pipe 1 port, facilitating the installation and rotation of the toothed ring 21. These technical features support and complement each other, forming a functional group of technical features.

[0043] like Figure 2 , Figure 3 and Figure 4As shown, in this embodiment, the smoke outlet pipe 1 is provided with two parallel threaded rods 31, and each threaded rod 31 has a first gear 33 at its end; the rotary drive mechanism 2 includes a gear ring 21, a first motor 22, and a second gear 23 provided on the drive shaft end of the first motor 22; both the inner and outer ring walls of the gear ring 21 are provided with a gear portion, and the gear ring 21 is rotatably provided at the top port of the smoke outlet pipe 1 so that the gear portion on the inner ring wall meshes with the two first gears 33; the first motor 22 is fixed on the outer wall of the smoke outlet pipe 1 so that the second gear 23 meshes with the gear portion on the outer ring wall of the gear ring 21; the second gear 23 and the two first gears 33 cooperate with each other to limit the gear ring 21.

[0044] During operation, the first motor 22 drives the second gear 23 to rotate, which in turn drives the gear ring 21 to rotate. This, in turn, drives the two first gears 33 to rotate synchronously via the gear section of the inner ring of the gear ring 21, ultimately causing the two threaded rods 31 to rotate synchronously, thus ensuring the smooth raising and lowering of the scraper ring teeth 32. Furthermore, the second gear 23 and the two first gears 33 respectively limit the gear ring 21 from the outside and inside, preventing axial or radial displacement during operation and ensuring stable and reliable transmission. Moreover, the design of the gear ring 21 does not occupy excessive space at the outlet of the flue pipe 1, effectively ensuring normal flue gas flow and thus guaranteeing excellent waste incineration results.

[0045] like Figure 2 and Figure 6 As shown, in this embodiment, a limiting groove 211 is formed on the bottom surface of the toothed ring 21 to allow the top of the smoke outlet pipe 1 to be embedded in the limiting groove 211. A ball bearing portion 212 is provided in the limiting groove 211 to allow the toothed ring 21 to rotate on the top of the smoke outlet pipe 1. Even though the second gear 23 and the two first gears 33 limit the toothed ring 21 from the outside and inside respectively, in order to further stabilize it and ensure the smooth rotation of the toothed ring 21, the present invention further designs a limiting groove 211. That is, the toothed ring 21 is not simply supported on the top of the smoke outlet pipe 1, but the top end of the smoke outlet pipe 1 is embedded in the limiting groove 211 to form a rotational support structure. A ball bearing portion 212 is provided in the limiting groove 211 to reduce the friction between the toothed ring 21 and the top of the smoke outlet pipe 1, so that the toothed ring 21 can rotate smoothly on the top of the smoke outlet pipe 1. This structure not only ensures stable installation of the toothed ring 21, but also reduces wear and extends service life.

[0046] like Figure 2 and Figure 6As shown, in this embodiment, a protruding smoke-guiding and limiting strip 5 is fixed on the inner wall of the smoke outlet pipe 1 near the toothed ring 21. The smoke-guiding and limiting strip 5 is inclined upwards to guide the smoke and reduce the amount of smoke entering the limiting groove 211. To prevent dust carried by the high-temperature smoke from entering the limiting groove 211 and affecting the rotation of the toothed ring 21, a protruding smoke-guiding and limiting strip 5 is fixed on the inner wall of the smoke outlet pipe 1 near the toothed ring 21. The smoke-guiding and limiting strip 5 is inclined upwards to form a guiding slope, which guides the rising smoke and directs it towards the center of the smoke outlet pipe 1, thereby reducing the chance of the smoke contacting the limiting groove 211 and effectively protecting the transmission components from contamination and corrosion.

[0047] like Figure 1 and Figure 4 As shown in this embodiment, the outer ring wall of the scraper ring 32 is provided with one or more protruding limiting guide blocks 322, and the inner wall of the smoke outlet pipe 1 is vertically provided with one or more limiting guide grooves (not shown in the figure) corresponding to the positions of the limiting guide blocks 322. The limiting guide blocks 322 are slidably recessed in the limiting guide grooves to guide and limit the lifting and lowering of the scraper ring 32. The limiting guide blocks 322 are slidably recessed in the limiting guide grooves to prevent the scraper ring 32 from rotating circumferentially under the drive of the threaded rod 31, ensuring that the scraper ring 32 always lifts and lowers in a straight line, thus ensuring excellent ash scraping effect.

[0048] like Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment, the smoke outlet pipe 1 is also provided with a sealing mechanism 4, which is used to seal the top port of the smoke outlet pipe 1 when it is not in operation or during maintenance. The sealing mechanism 4 includes a cover plate 41 and a lifting drive assembly 42 connected to each other. The lifting drive assembly 42 is fixed to the outer wall at the top port of the smoke outlet pipe 1, and the cover plate 41 is located above the top port of the smoke outlet pipe 1, and is used to seal the smoke outlet pipe 1 under the drive of the lifting drive assembly 42.

[0049] The purpose of the cover is threefold: First, it facilitates covering the top of the flue pipe, effectively preventing ash from flying during ash removal from the inner wall of flue pipe 1. Second, during certain special operating phases, covering the top end of flue pipe 1 reduces heat loss from flue pipe 1 and the incinerator, meeting specific operational requirements. Third, when incineration is not in operation, it also prevents external impurities from entering.

[0050] like Figure 1 , Figure 4 and Figure 5As shown, in this embodiment, the lifting drive assembly 42 includes a second motor 421, a gear shaft 422, a rack column 423, a connecting plate 424, and a mounting base 425. Both ends of the gear shaft 422 are rotatably mounted laterally on the outer wall of the smoke outlet pipe 1 via the mounting base 425. The rack column 423 is vertically limited and mounted on the mounting base 425, meshing with the gear shaft 422. The cover plate 41 is connected to the top of the rack column 423 via the connecting plate 424. The drive end of the second motor 421 is connected to the gear shaft 422 to drive the gear shaft 422 to rotate, thereby driving the rack column 423 to move up and down. In this embodiment, a vertical limiting guide rail is provided on the back of the rack column 423, and a corresponding limiting block is provided on the mounting base 425. This limiting block is located within the limiting guide rail and is used to limit the vertical movement of the rack column 423. The second motor 421 drives the gear shaft 422 to rotate, thereby driving the rack column 423 to move up and down, realizing the lifting and opening / closing of the cover plate 41. This makes the structure simple and compact, easy to manufacture and maintain.

[0051] like Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment, the connecting plate 424 is provided with a second bearing seat 426 for mounting the connecting plate 424 horizontally rotatably on the rack column 423. The top of the rack column 423 passes through the second bearing seat 426 and is connected to the horizontally arranged gear disk 427. The bottom of the connecting plate 424 is provided with a vertical third motor 428. The driving end of the third motor 428 meshes with the gear disk 427 through a gear component 429 to drive the connecting plate 424 to rotate around the rack column 423.

[0052] When the cover plate 41 needs to be removed, the third motor 428 drives the gear component 429 to rotate. Since the gear plate 427 is fixed to the top of the rack column 423, and the connecting plate 424 is rotatably connected to the rack column 423 through the second bearing seat 426, the connecting plate 424 will rotate horizontally around the rack column 423, thereby causing the cover plate 41 to rotate and move away from the top of the flue pipe 1. This special design serves two purposes: first, it provides operating space for the maintenance of internal components; second, during incineration operations, the cover plate 41 can be removed, which avoids the cover plate 41 forming an obstruction, effectively ensuring the normal flow of flue gas and thus ensuring excellent waste incineration results. At the same time, it effectively protects the cover plate 41 from pollution and corrosion by high-temperature flue gas.

[0053] like Figure 4 and Figure 5 As shown, this embodiment also includes a collection box 6. The side of the flue pipe 1 is connected to the incinerator via a pipe for introducing high-temperature flue gas. The bottom of the flue pipe 1 is connected to the top of the collection box 6. The collection box 6 is provided with a funnel 61 to collect the scraped-off ash. The ash scraped off by the scraper ring teeth 32 falls into the funnel 61 of the collection box 6 under gravity, which facilitates centralized cleaning and avoids secondary pollution.

[0054] like Figure 4 As shown, as a further improvement, the collection box 6 can also be equipped with a negative pressure adsorption mechanism 7. This mechanism 7 is used to extract air from the collection box 6 to create negative pressure. Firstly, the combination of negative pressure adsorption and active scraping makes ash collection more efficient and cleaner. Secondly, the negative pressure assists in the rapid settling and collection of ash accumulated above, preventing dust from flying and making it more environmentally friendly. Thirdly, it further helps prevent scraped dust from contaminating and clogging key components such as the limiting slide 211 and the limiting guide groove, ensuring stable system operation. Simultaneously, a filter plate 71 is provided at the bottom of the funnel 61, which facilitates ventilation for negative pressure adsorption and prevents scraped ash from falling and contaminating the negative pressure adsorption mechanism 7. In this embodiment, the negative pressure adsorption mechanism 7 includes a high-power exhaust fan that draws air towards the funnel 6 and discharges it outside the collection box 6, creating high-power negative pressure adsorption. In a preferred embodiment, a door opening and closing device is provided on the side of the flue pipe 1, which can seal the pipe connected to the incinerator during adsorption, resulting in better negative pressure adsorption. Alternatively, in other embodiments, the door opening and closing device may not be provided. As long as the incinerator is in the closed state, the adsorption effect can still be guaranteed (during the ash collection and removal operation, the incinerator must be stopped and closed). At the same time, the filter plate 71 can be detached via the sliding grooves on both sides. After collecting the ash, the collection box 6 is opened, the collection bag is placed on the filter plate 71, and the filter plate 71 is removed so that the ash falls into the collection bag.

[0055] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A waste incineration corrosion ash treatment device, installed on the flue pipe (1), characterized in that: The device includes a rotating drive mechanism (2) and a scraping mechanism (3) that work together. The scraping mechanism (3) includes a threaded rod (31) vertically disposed in the smoke outlet pipe (1) and scraping ring teeth (32) that can move up and down inside the smoke outlet pipe (1). The outer circumferential surface of the scraping ring teeth (32) contacts the inner wall surface of the smoke outlet pipe (1). The scraping ring teeth (32) are provided with a threaded hole (321) through which the threaded rod (31) moves. The rotating drive mechanism (2) is used to drive the threaded rod (31) to rotate so as to drive the scraping ring teeth (32) to move up and down against the inner wall of the smoke outlet pipe (1). The accumulated dust is scraped off; the smoke outlet pipe (1) is also provided with a sealing mechanism (4), the sealing mechanism (4) includes a cover plate (41) and a lifting drive assembly (42) connected to each other, the lifting drive assembly (42) is fixed on the outer wall at the top port of the smoke outlet pipe (1), the cover plate (41) is located above the top port of the smoke outlet pipe (1) for sealing the smoke outlet pipe (1) under the drive of the lifting drive assembly (42); the lifting drive assembly (42) includes a second motor (421), a gear shaft (422), a rack column (423), and a connecting plate. (424) and mounting base (425), the two ends of the gear shaft (422) are rotatably and laterally mounted on the outer wall of the smoke outlet pipe (1) through the mounting base (425), the rack column (423) is vertically limited and mounted on the mounting base (425) and meshes with the gear shaft (422), the cover plate (41) is connected to the top of the rack column (423) through the connecting plate (424), the drive end of the second motor (421) is connected to the gear shaft (422) to drive the gear shaft (422) to rotate so as to drive the rack column (423) to rise and fall. The connecting plate (424) is provided with a second bearing seat (426) for mounting the connecting plate (424) horizontally rotatably on the rack column (423). The top of the rack column (423) passes through the second bearing seat (426) and is connected to the horizontally arranged gear plate (427). The top of the connecting plate (424) is provided with a vertical third motor (428). The driving end of the third motor (428) meshes with the gear plate (427) through a gear (429) to drive the connecting plate (424) to rotate around the rack column (423).

2. The waste incineration corrosion ash treatment device according to claim 1, characterized in that: The ash scraping mechanism (3) includes an L-shaped fixing frame (34). One end of the fixing frame (34) is fixed to the outer wall at the top port of the smoke outlet pipe (1). The other end of the fixing frame (34) extends into the smoke outlet pipe (1) and is provided with a first bearing seat (341) at the end. The top of the threaded rod (31) is connected to the first bearing seat (341) to rotatably install the threaded rod (31) vertically in the smoke outlet pipe (1). A first gear (33) is also provided on the top of the threaded rod (31) for connection with the rotary drive mechanism (2).

3. The waste incineration corrosion ash treatment device according to claim 2, characterized in that: The smoke outlet pipe (1) is provided with two threaded rods (31), and each threaded rod (31) has a first gear (33) at its end; the rotary drive mechanism (2) includes a gear ring (21), a first motor (22), and a second gear (23) provided on the drive shaft end of the first motor (22); the inner and outer ring walls of the gear ring (21) are each provided with a gear section, and the gear ring (21) is rotatably provided at the top port of the smoke outlet pipe (1) so that the gear section on the inner ring wall meshes with the two first gears (33), and the first motor (22) is fixed on the outer wall of the smoke outlet pipe (1) so that the second gear (23) meshes with the gear section on the outer ring wall of the gear ring (21); the second gear (23) and the two first gears (33) cooperate with each other to limit the gear ring (21).

4. The waste incineration corrosion ash treatment device according to claim 3, characterized in that: A limiting groove (211) is provided on the bottom surface of the toothed ring (21) to allow the top of the smoke pipe (1) to be embedded in the limiting groove (211). A ball bearing (212) is provided in the limiting groove (211) to allow the toothed ring (21) to rotate at the top of the smoke pipe (1).

5. The waste incineration corrosion ash treatment device according to claim 4, characterized in that: On the inner wall of the smoke outlet pipe (1), near the toothed ring (21), there is a protruding smoke guide limiting strip (5). The smoke guide limiting strip (5) is inclined upward to guide the smoke and reduce the smoke from entering the limiting groove (211).

6. The waste incineration corrosion ash treatment device according to claim 1, characterized in that: The outer ring wall of the scraper ring tooth (32) is provided with one or more protruding limiting guide blocks (322). The inner wall of the smoke outlet pipe (1) is provided with one or more limiting guide grooves corresponding to the positions of the limiting guide blocks (322). The limiting guide blocks (322) are slidably embedded in the limiting guide grooves to guide and limit the lifting scraper ring tooth (32).

7. The waste incineration corrosion ash treatment device according to claim 1, characterized in that: It also includes a collection box (6), the side of the smoke outlet pipe (1) is connected to the incinerator through a pipe, the bottom of the smoke outlet pipe (1) is connected to the top of the collection box (6), and the collection box (6) is provided with a funnel (61) to collect the scraped ash.

8. The waste incineration corrosion ash treatment device according to claim 7, characterized in that: The collection box (6) is also equipped with a negative pressure adsorption mechanism (7), which is used to draw air into the collection box (6) to form a negative pressure adsorption so that the accumulated dust above can be quickly settled and collected.

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