A slag dropping channel sealing device for a waste incinerator

Abstract

This application relates to the technical field of the closure of the slag dropping channel of an incinerator, and in particular to a closure device for the slag dropping channel of a waste incinerator, which includes a device main body, two groups of closure components and two groups of driving components. Among them, the device main body is used to communicate with the incinerator and the slag remover respectively; the two groups of closure components are symmetrically arranged in the device main body and are used to open or close the device main body; the two groups of driving components are arranged in one-to-one correspondence with the closure components and are used to drive the closure components to rotate, so as to achieve the effect of stably and quickly opening or closing the device main body. This application has the effect of improving the maintenance efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of closing the slag dropping channel of an incinerator, and particularly to a device for closing the slag dropping channel of a waste incinerator. Background Art

[0002] At present, waste incineration technology occupies an important position in the environmental protection field. By treating waste through high-temperature incineration, it can not only effectively reduce the volume of waste, but also recycle the heat energy generated by combustion to provide clean energy for society. The tail slag removal machine of the incinerator, as a key equipment for slag conveying, its operating stability directly affects the continuous operation ability of the incineration system. In related technologies, when the slag removal machine has a mechanical failure or slag blockage, it is necessary to stop the operation of the burnout section of the incinerator and drain the cooling water inside the slag removal machine to carry out maintenance operations. During this process, the furnace chamber seal is damaged, resulting in cold air backflow and a sudden drop in the furnace chamber temperature. To meet the mandatory requirement in the "Pollution Control Standard for Hazardous Waste Incineration" (GB 18484-2020) that the incineration temperature is greater than or equal to 850 °C, the staff usually adopts the method of starting the auxiliary burner to compensate for the heat loss, and at the same time temporarily installs a protective iron plate at the slag dropping channel to block the risk of slag falling caused by the disturbance of the grate.

[0003] Regarding the above related technologies: The production cycle of the temporary safety measures is long, which significantly prolongs the fault handling time, thus easily leading to a reduction in the maintenance efficiency. Summary of the Invention

[0004] In order to improve the maintenance efficiency, the present application provides a device for closing the slag dropping channel of a waste incinerator.

[0005] A device for closing the slag dropping channel of a waste incinerator provided by the present application adopts the following technical solutions:

[0006] A device for closing the slag dropping channel of a waste incinerator includes:

[0007] A device main body for communicating with the incinerator and the slag removal machine respectively;

[0008] Two sets of closing components, and the two sets of closing components are symmetrically arranged in the device main body;

[0009] A driving component, the number of which is equal to and corresponds to the number of the closing components one by one. The driving component is used to drive the closing component to rotate so that the closing component opens or closes the device main body.

[0010] By adopting the above technical solution, the main body of the device is connected to the incinerator and the slag remover to ensure that the slag can enter the slag remover normally during the garbage incineration process. At the same time, the driving component can drive the blocking component to rotate to achieve the opening or closing function, so that on the one hand, the two sets of symmetrically arranged closing components can quickly close the slag falling channel when needed, effectively preventing cold air from entering the furnace to avoid the furnace temperature from dropping; on the other hand, it makes the operation more convenient and efficient, reduces the time delay caused by the temporary installation of iron plates, and improves the maintenance efficiency. In addition, the design also reduces fuel consumption, improves the overall operating economy, shortens the maintenance operation time, and enhances the stability and safety of equipment operation.

[0011] Optionally, the closing component includes a fixed plate, a baffle and a rotating shaft, the fixed plate is arranged in the device body, the rotating shaft is rotatably connected to the fixed plate, the baffle is connected to the rotating shaft, and the driving component includes a telescopic driving member and a rotating plate, the telescopic driving member is arranged in the device body, one end of the rotating plate is connected to the rotating shaft, and the other end of the rotating plate is movably connected to the telescopic driving member, and the telescopic driving member can drive the rotating shaft to rotate through the rotating plate.

[0012] By adopting the above technical solution, the fixed plate provides a stable support point for the shaft, and the telescopic drive transmits power to the shaft through the rotating plate, thereby driving the baffle to achieve precise angle adjustment. This design not only improves the automation level of the device, but also ensures the sealing performance of the baffle in the closed state, effectively reduces the possibility of cold air entering the furnace, and thus reduces the energy waste caused by temperature fluctuations in the incinerator. In addition, the structure is simple and reliable, easy to maintain and debug, and significantly improves the overall operating efficiency of the equipment.

[0013] Optionally, a linkage component is movably provided on the baffle plate, and when the linkage components on two baffle plates are close to each other, the two groups of linkage components conflict with each other to close the gap between the two baffle plates.

[0014] By adopting the above technical solution, when the two baffles gradually approach to close the main body of the device, the linkage components arranged on the baffles can cooperate with each other to ensure that the gap between the two baffles is effectively closed. This design avoids the air leakage problem caused by the gap between the baffles, thereby improving the sealing performance of the closing device. At the same time, since the linkage components can automatically resist and adjust the position during the closing process of the baffles, the connection between the baffles is tighter and more reliable, further enhancing the stability of the closing device during operation, reducing the temperature fluctuation caused by the external cold air entering the furnace of the incinerator, and providing a guarantee for the normal operation of the equipment.

[0015] Optionally, the linkage assembly includes a linkage plate and a magnetic attraction member. The linkage plate is slidably arranged on the baffle plate, and the magnetic attraction member is arranged at one end of the linkage plate away from the rotating shaft. The magnetic attraction members on the two linkage plates attract each other.

[0016] By adopting the above technical solution, when the two baffle plates approach each other to close the device body, the slidable arrangement of the linkage plate on the baffle plate can flexibly adjust the position to ensure that the gap between the two baffle plates is effectively closed. The magnetic attraction member is arranged at one end of the linkage plate away from the rotating shaft. By utilizing the characteristic of magnetic attraction, the two linkage plates are closely attached, thereby realizing reliable sealing of the gap between the baffle plates. This design not only improves the overall sealing performance of the closing device but also simplifies the operation process, avoiding the complexity and unreliability that may be brought by traditional mechanical connection methods, and further enhancing the safety and stability of the slag dropping channel closing device of the waste incinerator in practical applications.

[0017] Optionally, a heat insulation sleeve is sleeved on the magnetic attraction member.

[0018] By adopting the above technical solution, sleeving a heat insulation sleeve on the magnetic attraction member can effectively reduce the influence of high temperature on the performance of the magnetic attraction member, extend the service life of the magnetic attraction member, and prevent heat from being transferred to the linkage plate through the magnetic attraction member, thereby improving the overall stability and safety of the device.

[0019] Optionally, the outer peripheral surface of the heat insulation sleeve is designed to be arc-shaped.

[0020] By adopting the above technical solution, the arc-shaped heat insulation sleeve can ensure that when the magnetic attraction members attract each other, the contact surfaces of the two heat insulation sleeves are smoother and more closely attached, which is beneficial to reducing the jamming or obstruction caused by surface unevenness, and is beneficial to reducing the gap caused by surface unevenness, further improving the sealing performance, and preventing high-temperature flue gas and slag from leaking.

[0021] Optionally, a receiving groove is formed in the baffle plate along the direction perpendicular to the axis of the rotating shaft. A first elastic member is arranged in the receiving groove. A slider is arranged on the linkage plate. The slider is slidably inserted into the receiving groove and connected to the first elastic member. The first elastic member is used to push the linkage plate to move in the direction close to the rotating shaft.

[0022] By adopting the above technical solution, the elastic force of the first elastic member makes the linkage plate always have a tendency to move in the direction close to the rotating shaft when not affected by external forces, so as to ensure that the linkage plate can quickly return to the preset position in the initial state or after the external action is released, avoiding the problem of poor closing effect caused by the position deviation of the linkage plate.

[0023] Optionally, the cross-sections of the receiving groove and the slider are both designed to be dovetail-shaped.

[0024] By adopting the above technical solution, the accommodation groove on the baffle plate and the slider on the linkage plate are matched through a dovetail design. This design can effectively prevent the slider from disengaging from the accommodation groove, ensuring the sliding stability of the linkage plate on the baffle plate, thereby improving the overall reliability of the closing device. At the same time, the special shape design of the dovetail structure can also enhance the connection strength between components, reducing the risk of loosening caused by vibration or external forces, and further improving the durability and safety of the device.

[0025] Optionally, an observation window is provided on the device body, an observation component is arranged inside the device body, the observation component is arranged close to the observation window and fits with the observation window, a protrusion is provided on the baffle plate, the protrusion abuts against the observation component, and when the baffle plate drives the protrusion to rotate, the protrusion can drive the observation component to move.

[0026] By adopting the above technical solution, when the baffle plate rotates, the protrusion rotates accordingly and drives the observation component to move, so that the observation component can be adjusted in position according to the open or closed state of the baffle plate. This design realizes the dynamic adjustment of the observation component at the observation window, ensuring the clarity and safety of the observation window under different working conditions, and at the same time avoiding damage to the observation window caused by high temperature or dust in the slag dropping channel, and extending the service life of the observation window and the observation component.

[0027] Optionally, a through groove is formed on the device body, the observation component includes a partition plate, a color plate and a second elastic member, the second elastic member is arranged in the through groove, the partition plate is slidably arranged in the through groove and connected to the second elastic member, one end of the partition plate away from the second elastic member extends out of the through groove and fits with the observation window, a boss is arranged on the partition plate for abutting against the protrusion, and the color plate is arranged on one side of the partition plate close to the observation window.

[0028] By adopting the above technical solution, when the baffle plate closes the device body, the protrusion drives the partition plate to move, so that the color plate moves to the position of the observation window, thereby facilitating the staff to observe the color of the color plate through the observation window to judge whether the baffle plate is completely closed, improving the operation safety and reliability. And when the baffle plate resets, the second elastic member can push the partition plate to move, and the color plate moves into the through groove accordingly, thereby facilitating the protection of the color plate and the observation window to avoid the possibility of pollution or damage to the color plate and the observation window caused by high temperature or dust in the slag dropping channel.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. By setting two sets of symmetric closing components and corresponding driving components, the opening and closing actions of the baffle can be accurately controlled, ensuring the sealing performance of the slag dropping channel during the switching process, effectively avoiding the leakage of high-temperature flue gas or the backflow of cold air, and improving the thermal efficiency and operation stability of the incinerator;

[0031] 2. Through the mutual cooperation of the fixing plate, baffle, rotating shaft, telescopic driving member, rotating plate and connecting block, the baffle can be flexibly driven to switch between the vertical, horizontal or inverted V-shaped states, adapting to different working conditions, with convenient operation and high reliability;

[0032] 3. Through the mutual cooperation of the linkage plate and the magnetic attraction member, when the two baffles approach each other to close the device body, the magnetic attraction member can drive the movement of the linkage plate, so that the linkage plate effectively seals the gap between the two baffles, thus simplifying the operation process, avoiding the complexity and unreliability that may be brought by the traditional mechanical connection method, and further improving the safety and stability of the slag dropping channel closing device of the waste incinerator in practical applications. Description of the Drawings

[0033] Figure 1 is the overall structural schematic diagram of a slag dropping channel closing device of a waste incinerator in Embodiment 1 of the present application.

[0034] Figure 2 is the structural schematic diagram of the baffle and the driving component in Embodiment 1 of the present application.

[0035] Figure 3 is the structural schematic diagram of a slag dropping channel closing device of a waste incinerator in which the baffle is in a horizontal state in Embodiment 1 of the present application.

[0036] Figure 4 is the partial structural cross-sectional view of the closing component and the linkage component in Embodiment 2 of the present application.

[0037] Figure 5 is the structural schematic diagram of a slag dropping channel closing device of a waste incinerator in which the baffle is in an inverted V shape in Embodiment 2 of the present application.

[0038] Figure 6 is the partial structural cross-sectional view of a slag dropping channel closing device of a waste incinerator in Embodiment 3 of the present application.

[0039] Description of the Reference Numerals:

[0040] 1. Device main body; 11. Housing; 111. Through groove; 12. Support frame; 13. Observation window; 2. Sealing assembly; 21. Fixed plate; 22. Baffle; 221. Accommodation groove; 222. First elastic member; 223. Projection; 23. Rotating shaft; 3. Driving assembly; 31. Telescopic driving member; 32. Rotating plate; 4. Linkage assembly; 41. Linkage plate; 411. Slide block; 42. Magnetic attraction member; 43. Heat insulation sleeve; 5. Observation assembly; 51. Isolation plate; 511. Boss; 52. Color plate; 53. Second elastic member. Detailed implementation mode

[0041] The following is a further detailed description of the present application in conjunction with the attached Figures 1 - 6 This application is further described in detail below.

[0042] The embodiment of the present application discloses a slag dropping channel closing device for a waste incinerator.

[0043] It should be noted that in the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "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 the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0044] Embodiment 1: Refer to Figure 1 , a slag dropping channel closing device for a waste incinerator includes a device main body 1, two groups of sealing assemblies 2 and two groups of driving assemblies 3. Among them, the device main body 1 is used to communicate with the incinerator and the slag remover respectively and is arranged between the incinerator and the slag remover; the two groups of sealing assemblies 2 are symmetrically arranged in the device main body 1 and are used to open or close the device main body 1; the two groups of driving assemblies 3 are arranged in one-to-one correspondence with the sealing assemblies 2 and are used to drive the sealing assemblies 2 to rotate, achieving the effect of stably and quickly opening or closing the device main body 1.

[0045] The device main body 1 includes a housing 11 and a support frame 12. Among them, the housing 11 communicates with the incinerator and the slag remover respectively, and the support frame 12 is installed below the housing 11, so that there is a slag dropping channel (not shown in the figure) between the housing 11, the support frame 12 and the slag remover, so that the slag generated during the waste incineration process can normally enter the slag remover through the slag dropping channel.

[0046] The sealing assembly 2 includes a fixed plate 21, a baffle 22 and a rotating shaft 23. Among them, the fixed plate 21 can be cut and made of Q235 carbon steel, or other high-strength materials such as stainless steel plates can be selected. The fixed plate 21 is installed on the inner side wall of the housing 11 and is firmly connected by welding or bolts.

[0047] The rotating shaft 23 can be made of high-strength alloy steel, and its size can be adjusted according to actual needs. The rotating shaft 23 is rotatably connected to the fixed plate 21 through a bearing to ensure flexible rotation and wear resistance. The baffle 22 can be cut and made from a 10-mm thick wear-resistant steel plate, and its surface is treated with rust prevention. The baffle 22 is fixedly connected to the rotating shaft 23, so that the rotating shaft 23 can drive the baffle 22 to rotate.

[0048] Refer to Figure 1 and Figure 2 As shown in FIGS. and, the driving assembly 3 includes a telescopic driving member 31 and a rotating plate 32. Among them, the rotating plate 32 can be made of high-strength aluminum alloy, and one end of the rotating plate 32 is fixedly connected to the rotating shaft 23 and is arranged close to the fixed plate 21, and the other end of the rotating plate 32 is hinged to the telescopic driving member 31.

[0049] Refer to Figure 1 and Figure 3 As shown in FIGS. and, the end of the telescopic driving member 31 away from the rotating plate 32 is hinged to the support frame 12, so that the support frame 12 can stably support the telescopic driving member 31. In this embodiment, the telescopic driving member 31 is preferably a hydraulic cylinder, and a pneumatic cylinder or an electric push rod can also be selected, so as to facilitate driving the rotating plate 32 to rotate by the telescopic driving member 31, so that the rotating plate 32 drives the baffle 22 to rotate to a vertical or horizontal state.

[0050] The implementation principle of the slag dropping channel closing device of the waste incinerator in the embodiment of the present application is as follows: when it is necessary to close the slag dropping channel, the telescopic driving member 31 works to drive the rotating plate 32 to rotate upward, the rotating plate 32 drives the rotating shaft 23 to rotate, and the rotating shaft 23 drives the baffle 22 to rotate, so that the baffle 22 changes from a vertical state to a horizontal state. At this time, the two baffles 22 cooperate with each other to complete the closing of the slag dropping channel.

[0051] When it is necessary to open the slag dropping channel, the telescopic driving member 31 works in the reverse direction to drive the rotating plate 32 to rotate downward, and the rotating plate 32 drives the baffle 22 to rotate through the rotating shaft 23, so that the baffle 22 changes from a horizontal state to a vertical state, thereby completing the opening of the slag dropping channel. At this time, there is a gap between the baffle 22 and the inner wall of the housing 11 to prevent jamming caused by long-term inoperation.

[0052] Embodiment 2: Refer to Figure 4 As shown in FIGS., the difference between this embodiment and Embodiment 1 is that a linkage assembly 4 is movably arranged on the baffle 22.

[0053] Refer to Figure 1 and Figure 4 As shown in FIGS. and, the linkage assembly 4 includes a linkage plate 41 and a magnetic attraction member 42. Among them, the linkage plate 41 can be made of stainless steel, and a slider 411 is fixedly connected to the linkage plate 41.

[0054] A receiving groove 221 is formed in the upper edge of the baffle 22 along a direction perpendicular to the axis of the rotating shaft 23. The sliding block 411 is slidably inserted into the receiving groove 221, so that the linkage plate 41 can move on the baffle 22. In this embodiment, the cross-sections of the sliding block 411 and the receiving groove 221 are both designed in a dovetail shape, which can effectively prevent the sliding block 411 from detaching from the receiving groove 221 and ensure the sliding stability of the linkage plate 41 on the baffle 22.

[0055] A first elastic member 222 is arranged in the receiving groove 221, and the sliding block 411 is fixedly connected to the first elastic member 222. In this embodiment, the first elastic member 222 is a spring, so as to facilitate using the first elastic member 222 to push the sliding block 411 to move towards the direction close to the rotating shaft 23, so that the sliding block 411 drives the linkage plate 41 to move.

[0056] It should be noted that in this embodiment, during the process that the linkage plate 41 drives the sliding block 411 to slide in the receiving groove 221, the linkage plate 41 can always keep the receiving groove 221 blocked to prevent external impurities from entering the receiving groove 221.

[0057] The magnetic attracting member 42 can be a neodymium iron boron permanent magnet, its cross-section is designed in a circular shape, and the axis of the magnetic attracting member 42 is parallel to the axis of the rotating shaft 23. The magnetic attracting member 42 is fixedly connected to one end of the linkage plate 41 far from the rotating shaft 23.

[0058] A heat insulation sleeve 43 is sleeved on the magnetic attracting member 42. The heat insulation sleeve 43 can be made of ceramic fiber material, has good high temperature resistance performance, can effectively isolate heat transfer, and prolong the service life of the magnetic attracting member 42. In this embodiment, the outer peripheral surface of the heat insulation sleeve 43 is designed in an arc shape, which is beneficial to reducing the jamming or obstruction caused by surface unevenness, and is beneficial to increasing the gap reduction caused by surface unevenness, further improving the sealing performance and preventing high temperature flue gas and slag from leaking.

[0059] In this embodiment, the telescopic driving member 31 can drive the baffle 22 to switch between three states: vertical, horizontal or inverted V-shaped, so as to meet the use requirements under different working conditions.

[0060] When the slag discharging channel needs to be opened, the telescopic driving member 31 drives the baffle 22 to rotate downward. When the two baffles 22 are both in the vertical state, it is convenient for the slag generated during the garbage incineration process to normally enter the slag remover.

[0061] Refer to Figure 3 and Figure 4, when it is necessary to close the slag dropping channel, the telescopic driving member 31 drives the baffle 22 to rotate upward, so that both baffles 22 are in a horizontal state, and the magnetic members 42 on the two linkage plates 41 attract each other, so as to drive the heat insulation sleeve 43 and the linkage plate 41 to move away from the rotating shaft 23, so that the two heat insulation sleeves 43 are in contact with each other, thereby ensuring that there is no obvious gap between the two baffles 22 and enhancing the sealing performance. At this time, the first elastic member 222 is in a compressed state.

[0062] Refer to Figure 4 and Figure 5 , when the amount of slag dropping is large and it is necessary to close the slag dropping channel, the telescopic driving member 31 drives the baffle 22 to continue to rotate upward from the horizontal state, so that the two baffles 22 are in an inverted V shape, so that the slag can be concentrated between the baffle 22 and the inner wall of the housing 11, reducing the pressure of the slag on the baffle 22, thereby improving the stability of the baffle 22 to close the slag dropping channel. At the same time, the two heat insulation sleeves 43 remain in contact to enhance the sealing performance. And when the two baffles 22 rotate to the vertical state again, the slag concentrated between the baffle 22 and the inner wall of the housing 11 can fall into the slag remover.

[0063] Embodiment 3: Refer to Figure 6 , the difference between this embodiment and Embodiment 1 is that an observation window 13 is installed on the housing 11, and an observation assembly 5 is arranged in the housing 11.

[0064] The observation window 13 can be made of high-strength tempered glass, embedded in the side of the housing 11, having good high-temperature resistance and being able to play a sealing role.

[0065] A through groove 111 is formed on the housing 11, and the observation assembly 5 includes a partition plate 51, a color plate 52 and a second elastic member 53. Among them, the partition plate 51 can be made of stainless steel material, its cross section is rectangular, and the partition plate 51 is slidably inserted into the through groove 111, and one end of the partition plate 51 passes through the through groove 111 and fits with the observation window 13, so as to facilitate the use of the partition plate 51 to protect the observation window 13, so as to avoid damage to the observation window 13 caused by high temperature or dust in the slag dropping channel.

[0066] A boss 511 is fixedly connected to the partition plate 51, and a protrusion 223 is fixedly connected to the baffle 22. When the rotating shaft 23 drives the baffle 22 to rotate from the vertical state to the horizontal state, the baffle 22 drives the protrusion 223 to move, so that the protrusion 223 contacts the boss 511 and applies pressure to the boss 511, thereby driving the partition plate 51 to move.

[0067] The second elastic member 53 is arranged in the through groove 111 and connected to the partition plate 51. In this embodiment, the second elastic member 53 is a spring, so as to facilitate the use of the second elastic member 53 to push the partition plate 51 to reset.

[0068] The color plate 52 is installed on the isolation plate 51, and the material of the color plate 52 is high-temperature resistant plastic, and the color can be set according to actual needs, such as red or green. When the baffle 22 closes the slag dropping channel, the color plate 52 fits against the observation window 13, and the operator can directly judge the working state of the baffle 22 through the observation window 13. This design not only improves the convenience of operation but also enhances the safety of the system.

[0069] The above are all preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A slag dropping channel closing device for a waste incinerator, characterized in that, include: The device body (1) is used to be connected to the incinerator and the slag remover respectively; The sealing components (2) are provided in two groups, and the two groups of the sealing components (2) are symmetrically arranged in the device body (1); The driving components (3) are equal in number to the closing components (2) and are arranged in one-to-one correspondence, and the driving components (3) are used to drive the closing components (2) to rotate so that the closing components (2) open or close the device body (1); The sealing component (2) comprises a fixed plate (21), a baffle plate (22) and a rotating shaft (23); the fixed plate (21) is arranged in the device body (1); the rotating shaft (23) is rotatably connected to the fixed plate (21); the baffle plate (22) is connected to the rotating shaft (23); the driving component (3) comprises a telescopic driving member (31) and a rotating plate (32); the telescopic driving member (31) is arranged in the device body (1); one end of the rotating plate (32) is connected to the rotating shaft (23); the other end of the rotating plate (32) is movably connected to the telescopic driving member (31); the telescopic driving member (31) can drive the rotating shaft (23) to rotate via the rotating plate (32); A linkage assembly (4) is movably provided on the baffle plate (22); when the linkage assemblies (4) on two baffle plates (22) are brought close to each other, the two groups of linkage assemblies (4) contact each other to close the gap between the two baffle plates (22); The linkage assembly (4) comprises a linkage plate (41) and a magnetic attraction member (42), wherein the linkage plate (41) is slidably disposed on the baffle (22), and the magnetic attraction member (42) is disposed at one end of the linkage plate (41) away from the rotating shaft (23), and the magnetic attraction members (42) on the two linkage plates (41) attract each other; The magnetic attraction member (42) is provided with a heat insulation sleeve (43); The baffle plate (22) is provided with a receiving groove (221) along an axial direction perpendicular to the rotating shaft (23), a first elastic member (222) is arranged in the receiving groove (221), a sliding block (411) is arranged on the linkage plate (41), the sliding block (411) is slidably inserted in the receiving groove (221) and connected to the first elastic member (222), and the first elastic member (222) is used to push the linkage plate (41) to move in a direction close to the rotating shaft (23).

2. The slag dropping channel closing device of the waste incinerator according to claim 1, characterized in that: The outer peripheral surface of the heat insulating sleeve (43) is designed to be arc-shaped.

3. The slag dropping channel closing device of the waste incinerator according to claim 1, wherein: The cross-sections of the accommodating groove (221) and the sliding block (411) are both designed to be dovetail-shaped.

4. The slag dropping channel closing device of the waste incinerator according to claim 1, characterized in that: An observation window (13) is provided on the device main body (1). An observation component (5) is provided inside the device main body (1). The observation component (5) is arranged close to the observation window (13) and is in contact with the observation window (13). A protrusion (223) is provided on the baffle (22). The protrusion (223) abuts against the observation component (5). When the baffle (22) drives the protrusion (223) to rotate, the protrusion (223) can drive the observation component (5) to move.

5. The slag dropping channel closing device of the waste incinerator according to claim 4, characterized in that: A through groove (111) is formed in the device main body (1). The observation component (5) includes a partition plate (51), a color plate (52) and a second elastic member (53). The second elastic member (53) is arranged in the through groove (111). The partition plate (51) is slidably arranged in the through groove (111) and is connected to the second elastic member (53). One end of the partition plate (51) away from the second elastic member (53) extends out of the through groove (111) and is in contact with the observation window (13). A boss (511) is provided on the partition plate (51). The boss (511) is used to abut against the protrusion (223). The color plate (52) is arranged on one side of the partition plate (51) close to the observation window (13).

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