Purification device for waste incineration flue gas

Abstract

The invention discloses a waste incineration flue gas purification device, and relates to the technical field of incineration flue gas purification, the waste incineration flue gas purification device comprises a shell mechanism, the shell mechanism comprises a shell, the two sides of the shell communicate with a gas inlet pipe and a gas outlet pipe correspondingly, and a sewage discharge groove is formed in the shell; the filtering and cooling mechanism is fixed on the shell and comprises hollow net plates fixed on the inner wall of the shell, air holes are formed in the hollow net plates, and bent pipes are communicated between the adjacent hollow net plates. The filtering and cooling mechanism adopts a plurality of groups of hollow net plates with air holes, adjacent net plates are communicated through bent pipes to form cooling runners, and after cooling water is introduced, the hollow net plates not only physically intercept and filter particulate matters, but also can cool high-temperature flue gas through heat exchange; meanwhile, vaporized liquid in the flue gas is liquefied after encountering the low-temperature hollow screen plate and is attached to the surface of the screen plate to assist in capturing particulate matters, and liquefied water drops can carry the attached particles to fall into a collecting mechanism after being accumulated, so that the blockage of the screen plate is reduced, and the coordination of filtering, cooling and auxiliary ash removal is realized.

Description

Technical Field

[0001] This invention relates to the field of flue gas purification technology, and in particular to a purification device for waste incineration flue gas. Background Technology

[0002] A waste incineration flue gas purification device is a complete set of equipment systems specifically designed for the complex flue gas generated during waste incineration. It uses physical, chemical, or biological technologies to remove harmful pollutants (such as particulate matter, acidic gases, heavy metals, dioxins, etc.) from the flue gas, ensuring that the treated flue gas meets national or regional emission standards and is ultimately safely discharged. Flue gas filtration is one part of the flue gas purification device, playing a role in intercepting particulate matter.

[0003] However, in practical applications, some problems remain unresolved. The following are some common issues with filtration equipment in waste incineration flue gas purification systems: High risk of particulate matter clogging: A single filtration structure relies solely on physical interception of particulate matter. After long-term use, particles easily adhere to the surface of the filter components, causing pore blockage. This not only reduces flue gas flow efficiency but also requires frequent shutdowns for cleaning. Insufficient cooling of high-temperature flue gas and resource waste: If high-temperature flue gas (the temperature of flue gas after waste incineration) is treated with only a single cooling method, uneven cooling is likely to occur, and the heat generated during the cooling process is not effectively recovered. Simultaneously, the vaporized liquid in the high-temperature flue gas cannot be utilized, missing the opportunity to assist in capturing particulate matter. Unstable cooling effect: If the flue gas temperature rises sharply, a fixed flow rate of cooling water cannot meet the cooling demand, potentially causing subsequent purification units (such as deacidification and dioxin removal components) to fail due to high temperatures. If the flue gas temperature decreases, excessive cooling water will result in resource waste. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing waste incineration flue gas purification devices, the present invention is proposed.

[0006] Therefore, the problem to be solved by this invention is how to address the poor synergy between filtration and cooling, low efficiency in particulate matter retention and high-temperature flue gas treatment, waste of residual heat after shutdown and safety hazards in equipment cooling, lack of automated control, and inability to dynamically adjust water flow according to flue gas conditions.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a purification device for waste incineration flue gas, comprising, The housing mechanism includes an outer shell, with an air inlet pipe and an air outlet pipe respectively connected to both sides of the outer shell, and a drain trough is provided inside the outer shell; The filtration and cooling mechanism is fixed to the outer shell and includes a hollow mesh plate fixed to the inner wall of the outer shell. The hollow mesh plate has air holes, and a bent pipe connects adjacent hollow mesh plates. An inlet pipe and an outlet pipe are respectively connected to the hollow mesh plates on both sides. A feedback drive unit, mounted on a housing mechanism, includes a cover fixed to one side of the housing. A conductive element is mounted on the cover and the air outlet pipe. A vertical tube is fixed on the conductive element. A vertical rod slides along the inner wall of the vertical tube. A ball bearing is embedded on the upper surface of the vertical rod. A delay element is mounted on the conductive element and the vertical tube. A guide hole is opened on the vertical tube, and the ball bearing slides within it. A positioning groove 1 and a positioning groove 2 are respectively opened on the surface of the vertical rod. A positioning element is mounted on the surface of the vertical tube, and it cooperates with the positioning groove 1 and the positioning groove 2 respectively. A switching mechanism, mounted on a feedback drive component and fixedly connected to a filtration and cooling mechanism, includes a valve housing located at the lower end of a vertical rod. A valve ball rotates within the valve housing. The vertical rod rotates on the valve housing, with its lower end fixed to the surface of the valve ball. A channel is provided on the valve ball. Short pipes one, two, and three are respectively connected to the valve housing. Short pipe two is connected to the liquid inlet pipe. The cleaning mechanism is installed on the outer casing and short pipe three.

[0008] As a preferred embodiment of the waste incineration flue gas purification device of the present invention, the conductive component includes a vertical cylinder fixed to the bottom of the gas outlet pipe, a heat-conducting rod is embedded in the upper end of the vertical cylinder, the lower end of the heat-conducting rod penetrates into the inner cavity of the vertical cylinder and is fixed with a heat-conducting block, an alloy component is fixed to the bottom of the heat-conducting block, a round block is fixed to the lower end of the alloy component and slides inside the vertical cylinder, the vertical cylinder slides on the vertical cylinder and its upper end is fixed to the bottom of the round block, and the upper end of the heat-conducting rod penetrates into the inner cavity of the gas outlet pipe and is fixed with a heat-conducting plate.

[0009] In a preferred embodiment of the waste incineration flue gas purification device of the present invention, the delaying element includes a drive plate fixed to the surface of a vertical pipe and sliding on the vertical cylinder; a delaying block is sleeved on the lower end surface of the vertical pipe; a fixed plate is fixed to the bottom of the vertical cylinder; a moving block slides on the vertical cylinder; a roller rotates on one end of the moving block and cooperates with the drive plate; an oblique hole is opened on the other end surface of the moving block; a vertical plate slides on the fixed plate; a guide post is fixed at the upper end of the vertical plate and slides in the oblique hole; a pressing block slides at the lower end of the fixed plate and cooperates with the vertical plate; a resistance block is fixed at one end of the pressing block.

[0010] As a preferred embodiment of the waste incineration flue gas purification device of the present invention, wherein: a rubber pad is fixed on the surface of the resistance block and cooperates with the delay block; a spring sheet is fixed between the surface of the fixed plate and the surface of the vertical plate; a spring sheet is fixed between the surface of the fixed plate and the surface of the extrusion block; a sliding groove is provided inside the vertical cylinder; a slider is fixed on the moving block and slides in the sliding groove.

[0011] As a preferred embodiment of the waste incineration flue gas purification device of the present invention, the positioning component includes a positioning rod that slides on the vertical pipe and cooperates with positioning groove one and positioning groove two respectively. A pull plate is fixed to one end of the positioning rod, and a spring is sleeved on the surface of the positioning rod and its two ends are fixed to the surface of the pull plate and the surface of the vertical pipe respectively. A limit groove is opened in the vertical pipe, and a limit block is fixed on the positioning rod and slides in the limit groove.

[0012] As a preferred embodiment of the waste incineration flue gas purification device of the present invention, the cleaning mechanism includes an annular tube fixed to the inner wall of the outer shell by a support rod, a nozzle is connected to the annular tube, a shield is installed on the annular tube and the outer shell and cooperates with the nozzle, a linkage is installed on the shield and the cover and is disposed on the outer shell, a long pipe is connected to the annular tube, one end of the long pipe extends to the outside of the outer shell and is connected to a horizontal pipe, and a connecting pipe is connected between the horizontal pipe and the short pipe.

[0013] As a preferred embodiment of the waste incineration flue gas purification device of the present invention, the shielding component includes a connecting rod fixed to a ring pipe, a circular frame fixed to one end of the connecting rod, a rotating rod rotatably mounted on the circular frame, baffles fixed to both ends of the rotating rod and cooperating with nozzles, a crossbar fixed to the baffle, a movable frame sleeved on the surface of the crossbar, a square plate sliding on the outer shell and its lower end fixed to the top of the movable frame, a guide post two fixed to the upper end of the square plate, and torsion springs sleeved on both ends of the rotating rod and its ends respectively fixed to the surface of the rotating rod and the inner wall of the circular frame.

[0014] As a preferred embodiment of the waste incineration flue gas purification device of the present invention, the linkage includes: a frame fixed to the top of the outer shell, a horizontal plate sliding on the frame, a second oblique hole on the horizontal plate, and a second guide post sliding inside the oblique hole; an L-shaped plate sliding on the cover, a square frame fixed to the upper end of the L-shaped plate; a sliding plate sliding on the frame, with its lower end fixed to the top of the square frame; a guide groove on one end surface of the horizontal plate; a guide rod fixed to the upper end of the sliding plate and sliding in the guide groove; and a spring sleeved on the lower end surface of the L-shaped plate, with its two ends respectively fixed to the surface of the L-shaped plate and the inner wall of the cover.

[0015] As a preferred embodiment of the waste incineration flue gas purification device of the present invention, the outer shell is equipped with a collection mechanism, including a collection cylinder that slides on the inner wall of the outer shell, a collection groove is provided on the collection cylinder, a docking post slides on the outer shell and one end of the post is fixed to one end of the collection cylinder, a hollow post rotates on the other end of the docking post, an insertion hole is provided on the surface of the hollow post, and a counterweight ball is fixed on the surface of the hollow post.

[0016] As a preferred embodiment of the waste incineration flue gas purification device of the present invention, the feedback drive component further includes a fixing component fixed to the outer shell and the delay block, including a connecting plate fixed to one side of the outer shell, a spline rod sliding on the connecting plate and cooperating with the insertion hole, a short column fixed on the surface of the spline rod, a Z-shaped plate fixed on the surface of the delay block, a guide frame fixed at one end of the Z-shaped plate, and the short column sliding inside it.

[0017] The beneficial effects of this invention are: The filtration and cooling mechanism employs multiple sets of hollow mesh plates with air holes. Adjacent mesh plates are connected by bent pipes to form cooling channels. After cooling water is introduced, the hollow mesh plates not only physically trap and filter particulate matter, but also cool the high-temperature flue gas through heat exchange. At the same time, the vaporized liquid in the flue gas liquefies upon encountering the low-temperature hollow mesh plates and adheres to the surface of the mesh plates, which can assist in capturing particulate matter. Furthermore, the accumulated liquefied water droplets carry the attached particles down to the collection mechanism, reducing mesh plate clogging and achieving a synergistic effect of "filtration-cooling-assisted dust removal".

[0018] Through feedback drive and delay components, after shutdown, the flue gas temperature drops. When the conduction component drives the vertical pipe to move upward, the delay component will generate resistance to the upward movement of the vertical pipe, delaying the switching mechanism from closing the cooling water pipe. The cooling water flow continues for a period of time, which can absorb and carry away the residual heat in the device, and quickly reduce the internal temperature of the device, so that the equipment can reach the safe maintenance temperature as soon as possible and shorten the maintenance waiting time.

[0019] Through the automated linkage of feedback drive components and switching mechanisms, the transmission component monitors the flue gas temperature in the duct in real time, causing the vertical pipe to move up and down. The ball bearings on the internal vertical rod slide along the guide hole, driving the vertical rod to rotate, which in turn drives the valve ball in the switching mechanism to rotate. By controlling the different connection states of the channels on the valve ball, the cooling water flow can be "automatically started and stopped" and "dynamically adjusted in flow rate", without the need for manual intervention, with fast response and precise control. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 Overall structure of a waste incineration flue gas purification device Figure 1 .

[0021] Figure 2 Overall structure of a waste incineration flue gas purification device Figure 2 .

[0022] Figure 3 A partial cross-sectional three-dimensional structural diagram of a purification device for waste incineration flue gas.

[0023] Figure 4 Purification equipment for waste incineration flue gas Figure 3 Enlarged view of region A in the middle.

[0024] Figure 5 Purification equipment for waste incineration flue gas Figure 3 Enlarged view of region B in the middle.

[0025] Figure 6 Partial cross-sectional plan view of a purification device for waste incineration flue gas.

[0026] Figure 7 Partial sectional perspective view of the hollow mesh plate of the purification device for waste incineration flue gas.

[0027] Figure 8 Cross-sectional three-dimensional view of a partial structure of a waste incineration flue gas purification device. Figure 1 .

[0028] Figure 9 Purification equipment for waste incineration flue gas Figure 8 Enlarged view of region C.

[0029] Figure 10 Purification equipment for waste incineration flue gas Figure 8 Enlarged view of region D in the middle.

[0030] Figure 11 A sectional perspective view of a purification device for waste incineration flue gas.

[0031] Figure 12 Cross-sectional three-dimensional view of a partial structure of a waste incineration flue gas purification device. Figure 2 .

[0032] Figure 13 Purification equipment for waste incineration flue gas Figure 12 Enlarged view of region E in the middle.

[0033] Figure 14 Purification equipment for waste incineration flue gas Figure 12 Enlarged view of the F region.

[0034] Figure 15Partial sectional view of a waste incineration flue gas purification device Figure 3 .

[0035] Figure 16 Purification equipment for waste incineration flue gas Figure 15 Enlarged view of the G region.

[0036] Figure 17 Purification equipment for waste incineration flue gas Figure 15 Enlarged view of region H in the middle.

[0037] Figure 18 Purification equipment for waste incineration flue gas Figure 15 Enlarged view of the J region.

[0038] Figure 19 Purification equipment for waste incineration flue gas Figure 15 Enlarged view of the K region.

[0039] Figure 20 Purification equipment for waste incineration flue gas Figure 15 Enlarged view of the L-region.

[0040] Figure 21 A three-dimensional view showing the separation of the fixtures and collection mechanism of a waste incineration flue gas purification device.

[0041] Figure 22 A three-dimensional diagram of the collection cylinder for a purification device used to treat flue gas from waste incineration.

[0042] Figure 23 A sectional perspective view of the vertical pipes and rods of a purification device for waste incineration flue gas.

[0043] Figure 24 Purification equipment for waste incineration flue gas Figure 23 Enlarged view of region M in the middle.

[0044] Figure 25 The vertical pipes and rods of the purification device for waste incineration flue gas are separated into three dimensions. Figure 1 .

[0045] Figure 26 The vertical pipes and rods of the purification device for waste incineration flue gas are separated into three dimensions. Figure 2 .

[0046] Figure 27 A sectional perspective view of the switching mechanism of a purification device for waste incineration flue gas.

[0047] In the diagram: 1. Housing mechanism; 11. Outer shell; 12. Inlet pipe; 13. Outlet pipe; 14. Drainage trough; 15. Inspection door; 2. Filter cooling mechanism; 21. Hollow mesh plate; 22. Air hole; 23. Bend; 24. Liquid inlet pipe; 25. Liquid outlet pipe; 3. Feedback drive component; 31. Cover; 32. Conducting component; 33. Vertical pipe; 34. Vertical rod; 35. Ball bearing; 36. Delay component; 37. Guide hole; 38. Positioning component; 39. Positioning groove one; 310. Positioning groove two; 311. Fixing component; 4. Switching mechanism; 41. Valve shell; 42. Valve ball; 43. Channel; 44. Short pipe one; 4 5. Short pipe two; 46. Short pipe three; 47. Water pipe; 5. Cleaning mechanism; 51. Ring pipe; 52. Sprayer head; 53. Shielding component; 54. Linkage component; 55. Long pipe; 56. Horizontal pipe; 57. Connecting pipe; 6. Collection mechanism; 61. Collection cylinder; 62. Collection trough; 63. Connecting post; 64. Hollow column; 65. Insertion hole; 66. Counterweight ball; 32-1. Vertical cylinder; 32-2. Heat-conducting rod; 32-3. Heat-conducting block; 32-4. Alloy part; 32-5. Round block; 32-6. Heat-conducting plate; 36-1. Drive plate; 36-2. Delay block; 36-3. Fixing plate; 36-4. Moving... Moving block; 36-5, Roller; 36-6, Inclined hole one; 36-7, Vertical plate; 36-8, Guide post one; 36-9, Extrusion block; 36-10, Resistance block; 36-11, Rubber pad; 36-12, Spring one; 36-13, Spring two; 36-14, Slide groove; 36-15, Slider; 38-1, Positioning rod; 38-2, Pull plate; 38-3, Spring one; 38-4, Limiting groove; 38-5, Limiting block; 311-1, Connecting plate; 311-2, Spline rod; 311-3, Short column; 311-4, Z-shaped plate; 311-5, Guide frame; 53-1, Connecting rod 53-2, Circular frame; 53-3, Rotating rod; 53-4, Baffle; 53-5, Crossbar; 53-6, Moving frame; 53-7, Square plate; 53-8, Guide post two; 53-9, Torsion spring; 54-1, Frame body; 54-2, Crossbar; 54-3, Slanted hole two; 54-4, L-shaped plate; 54-5, Square frame; 54-6, Slide plate; 54-7, Guide groove; 54-8, Guide rod; 54-9, Spring two; 37-1, Hole slot one; 37-2, Hole slot two; 37-3, Hole slot three; 37-4, Hole slot four; 37-5, Hole slot five; 37-6, Hole slot six; 37-7, Hole slot seven. Detailed Implementation

[0048] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0049] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0050] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0051] Reference Figures 1-15 This is the first embodiment of the present invention. This embodiment provides a purification device for waste incineration flue gas, which includes a housing mechanism 1, a filtration and cooling mechanism 2, a feedback drive component 3, a switching mechanism 4, and a cleaning mechanism 5.

[0052] Specifically, the housing mechanism 1 includes an outer shell 11. An air inlet pipe 12 and an air outlet pipe 13 are respectively connected to both sides of the outer shell 11. The air inlet pipe 12 is connected to the device after the flue gas is initially filtered through a pipe, and the air outlet pipe 13 is connected to the subsequent flue gas treatment device through a pipe. This is prior art, and the working principle of this part is also prior art, which can be clearly understood by those skilled in the art, so it will not be described in detail here. A sewage discharge trough 14 is provided inside the outer shell 11. The lower side of the sewage discharge trough 14 is inclined. With this design, it is convenient to tilt and discharge sewage during sewage discharge, thereby improving the cleaning and sewage discharge effect.

[0053] Specifically, the filter cooling mechanism 2 is fixed on the outer shell 11 and includes a hollow mesh plate 21 fixed to the inner wall of the outer shell 11. The hollow mesh plate 21 has air holes 22. Adjacent hollow mesh plates 21 are connected by a bent pipe 23. The hollow mesh plates 21 on both sides are respectively connected by an inlet pipe 24 and an outlet pipe 25.

[0054] The inner wall of the outer shell 11 is provided with multiple hollow mesh plates 21, and multiple air holes 22 are provided on the hollow mesh plates 21. Two adjacent hollow mesh plates 21 are connected by a bend 23. The air holes 22 can filter and intercept the particles carried in the flue gas, allowing the gas to pass through and be discharged normally. After water is introduced into the hollow mesh plates 21, the flue gas can be cooled to achieve heat exchange. The cool water is discharged with heat conduction for use in other industrial applications. At the same time, it can cool the high-temperature flue gas and achieve effective utilization of resources.

[0055] Furthermore, the vaporized liquid carried in the flue gas cools and liquefies upon encountering the lower-temperature hollow mesh plate 21, adhering to the hollow mesh plate 21 and thus capturing particulate matter. As the number of water droplets increases, they can carry down the particles adhering to the hollow mesh plate 21 during the falling process and collect them at the bottom of the outer shell 11, playing a certain cleaning role and reducing the long-term blockage of particulate matter adhering to the hollow mesh plate 21.

[0056] Specifically, the feedback drive 3 is installed on the housing mechanism 1, including a cover 31 fixed to one side of the outer shell 11. A door is rotatably connected to one side of the cover 31 via a hinge, which can be opened to facilitate maintenance of the feedback drive 3 and operation of the positioning component 38. A conductive component 32 is installed on the cover 31 and the exhaust pipe 13. The conductive component 32 can drive the vertical pipe 33 according to the heat of the flue gas, causing it to move up or down. Then, with the help of the vertical rod 34 and the ball bearing 35 on it, the switching mechanism 4 is driven to adjust the water flow rate in the filter cooling mechanism 2, so that the water temperature after heat conduction is within the required range. The ball bearing 35 rotates on the vertical rod 34.

[0057] A vertical pipe 33 is fixed on the conductive component 32, and a vertical rod 34 slides on the inner wall of the vertical pipe 33. A ball bearing 35 is embedded on the upper surface of the vertical rod 34. A delay component 36 is installed on the conductive component 32 and the vertical pipe 33. A guide hole 37 is opened on the vertical pipe 33, and the ball bearing 35 slides in it. Through the setting of the guide hole 37, when the vertical pipe 33 can no longer move downward, the ball bearing 35 moves in the guide hole 37 during this process, causing the vertical rod 34 to rotate 90 degrees, thereby causing the switching mechanism 4 to switch, so that the water pipe 47 is fully connected to the liquid inlet pipe 24 on the filter cooling mechanism 2, realizing the maximum water flow. When the vertical pipe 33 moves up and down at the corresponding position, the vertical rod 34 can rotate and swing, which acts on the switching mechanism 4, so as to control the connection between the water pipe 47 and the liquid inlet pipe 24 on the filter cooling mechanism 2, thereby adjusting the water flow into the filter cooling mechanism 2.

[0058] By setting the delay component 36, the flue gas temperature drops when the incineration is stopped. During the upward movement of the vertical pipe 33 caused by the action of the conduction component 32, the temperature drop is delayed, thereby delaying the closing of the water pipe 47 and the liquid inlet pipe 24 by the switching mechanism 4. This allows the residual high-temperature heat in the device to be utilized. By delaying the water flow closure, the water flow carries away the residual heat for utilization and also cools the device. This makes it easier for operators to maintain the temperature of the device within a certain safe range during subsequent maintenance or deep cleaning, improving safety and the efficiency of maintenance and deep cleaning.

[0059] The vertical rod 34 has a positioning groove 39 and a positioning groove 310 on its surface. The vertical tube 33 has a positioning component 38 installed on its surface, which cooperates with the positioning groove 39 and the positioning groove 310 respectively. With the setting of the positioning groove 39, after the incineration stops, the fixing component 311 is lifted and inserted into it. During this process, the vertical tube 33 moves upward and the vertical rod 34 rotates. The upward movement of the vertical tube 33 acts on the fixing component 311, causing it to release the fixing of the collection mechanism 6. Pulling the collection mechanism 6 can remove it from the device and discharge the mud and dirt collected inside for cleaning. The rotation of the vertical rod 34 acts on the switching mechanism 4, so that the cleaning mechanism 5 is connected to the switching mechanism 4.

[0060] By setting the positioning groove 310, the fixing part 311 inserted into the positioning groove 39 is pulled up and inserted into it. During this process, the vertical pipe 33 continues to move upward and the vertical rod 34 continues to rotate, so that the guide frame 311-5 on the fixing part 311 acts on the cleaning mechanism 5, removes the obstruction of the nozzle 52 on the cleaning mechanism 5, and exposes the nozzle 52. The rotation of the vertical rod 34 acts on the switching mechanism 4, so that the cleaning mechanism 5 is connected to the water pipe 47 through the switching mechanism 4, and then water is delivered into the cleaning mechanism 5 and sprayed out from the nozzle 52 to rinse the hollow mesh plate 21 and clean the inner wall of the outer shell 11. The rinsed material is discharged from the installation place of the collection mechanism 6 and the sewage tank 14.

[0061] Specifically, the switching mechanism 4 is installed on the feedback drive component 3 and fixedly connected to the filter cooling mechanism 2. It includes a valve housing 41 located at the lower end of the vertical rod 34. A valve ball 42 rotates inside the valve housing 41. The vertical rod 34 rotates on the valve housing 41 and its lower end is fixed to the surface of the valve ball 42. Both the valve ball 42 and the vertical rod 34 are sealed with the valve housing 41 to prevent liquid leakage. A channel 43 is provided on the valve ball 42. Short pipe 1 44, short pipe 2 45 and short pipe 3 46 are respectively connected to the valve housing 41. Short pipe 2 45 is connected to the liquid inlet pipe 24.

[0062] The channel 43 is L-shaped. When not in use under normal conditions, the conductor 32 does not act on the vertical pipe 33, nor does it drive the vertical rod 34 and the valve ball 42, so that one end of the channel 43 is only connected to the second short pipe 45. The water in the water pipe 47 will not enter the filter cooling mechanism 2. When the waste incineration produces flue gas, the conductor 32 acts on the vertical pipe 33, driving the vertical rod 34 and the valve ball 42 to rotate, so that both ends of the channel 43 are connected to the first short pipe 44 and the second short pipe 45 respectively, thereby connecting the water pipe 47 to the filter cooling mechanism 2 to realize water heat exchange.

[0063] When the positioning component 38 is lifted, the vertical pipe 33 moves upward, and the positioning rod 38-1 is inserted into the positioning groove 39 on the vertical rod 34, one end of the channel 43 is only connected to the cleaning mechanism 5. The water in the water pipe 47 will not enter the filter cooling mechanism 2 and the cleaning mechanism 5. When the positioning component 38 is lifted and inserted into the positioning groove 310 on the vertical rod 34, both ends of the channel 43 are connected to the short pipe 44 and the short pipe 46 respectively, thereby connecting the water pipe 47 to the cleaning mechanism 5 to rinse the hollow mesh plate 21 and clean the inner wall of the outer shell 11.

[0064] The cleaning mechanism 5 is installed on the outer shell 11 and the short pipe 46. Through the setting of the cleaning mechanism 5, the water pipe 47 is connected to it to rinse the hollow mesh plate 21 and clean the inner wall of the outer shell 11. Example 2

[0065] Reference Figures 2-23 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0066] Specifically, the conductive component 32 includes a vertical cylinder 32-1 fixed to the bottom of the exhaust pipe 13. A heat-conducting rod 32-2 is embedded in the upper end of the vertical pipe 33. The lower end of the heat-conducting rod 32-2 extends into the inner cavity of the vertical cylinder 32-1 and is fixed with a heat-conducting block 32-3. An alloy part 32-4 is fixed to the bottom of the heat-conducting block 32-3. The alloy part 32-4 is a shape memory alloy, which deforms and elongates when heated and retracts when the temperature drops. This is existing technology. The working principle of this part is also existing technology, which can be clearly understood by those skilled in the art and will not be described in detail here. A round block 32-5 is fixed to the lower end of the alloy part 32-4 and slides inside the vertical cylinder 32-1. The vertical pipe 33 slides on the vertical cylinder 32-1 and its upper end is fixed to the bottom of the round block 32-5. The upper end of the heat-conducting rod 32-2 extends into the inner cavity of the exhaust pipe 13 and is fixed with a heat-conducting plate 32-6.

[0067] The heat transfer rod 32-2 allows the flue gas passing through the exhaust pipe 13 to transfer heat to it, which is then transferred to the alloy part 32-4 via the heat transfer block 32-3, causing it to elongate. This causes the round block 32-5 and the vertical pipe 33 at its bottom to move downwards, allowing the ball bearing 35 to move within the guide hole 37. This, in turn, causes the vertical rod 34 to rotate, thereby controlling the switching mechanism 4. This connects the water pipe 47 to the filter cooling mechanism 2, supplying it with water and adjusting the water flow rate according to the flue gas temperature.

[0068] The circular block 32-5 has a circular hole, which allows the upper part of the circular block 32-5 and the vertical cylinder 32-1 to be connected to the atmosphere. This prevents the circular block 32-5 from being affected by pressure when it is moved by the alloy part 32-4. The heat-conducting rod 32-2 is provided with multiple heat-conducting plates 32-6. The heat-conducting plates 32-6 increase the heat-conducting contact area, allowing heat to be better transferred to the heat-conducting rod 32-2.

[0069] Specifically, the delay component 36 includes a drive plate 36-1 fixed to the surface of the vertical tube 33 and sliding on the vertical cylinder 32-1. A delay block 36-2 is sleeved on the lower end surface of the vertical tube 33. A fixing plate 36-3 is fixed to the bottom of the vertical cylinder 32-1. A moving block 36-4 slides on the vertical cylinder 32-1. A roller 36-5 rotates on one end of the moving block 36-4 and cooperates with the drive plate 36-1. An oblique hole 36-6 is opened on the other end surface of the moving block 36-4. A vertical plate 36-7 slides on the fixing plate 36-3. A guide post 36-8 is fixed at the upper end of the vertical plate 36-7 and slides in the oblique hole 36-6. A pressing block 36-9 slides at the lower end of the fixing plate 36-3 and cooperates with the vertical plate 36-7. A resistance block 36-10 is fixed at one end of the pressing block 36-9.

[0070] The drive plate 36-1 is provided with an inclined surface, the delay block 36-2 is fixed to the surface of the vertical tube 33, the moving block 36-4 passes through the vertical tube 33 and is slidably connected to it, and the roller 36-5 is rotatably connected to the moving block 36-4 through a rotating shaft. By setting the roller 36-5, when the inclined surface on the drive plate 36-1 contacts and squeezes it, the frictional resistance between them is reduced, and the drive plate 36-1, which moves down with the vertical tube 33, squeezes the roller 36-5 to make it move, thereby making the moving block 36-4 move.

[0071] With the oblique hole 36-6 and guide post 36-8 in place, when the moving block 36-4 moves, it drives the oblique hole 36-6 to move, which in turn allows the guide post 36-8 to move within it, thereby causing the vertical plate 36-7 to move downward. The pressing block 36-9 has an inclined surface, and the lower end of the vertical plate 36-7 has an inclined surface. With this arrangement, when the conductive component 32 is rapidly heated, it drives the vertical tube 33 to move downward. During the pressing and moving of the roller 36-5, the vertical plate 36-7 moves downward and presses the pressing block 36-9, causing the pressing block 36-9 to move and drive the resistance block 36-10 to move away from the delay block 36-2, so that the vertical tube 33 can move downward smoothly. This provides an obstacle when the vertical tube 33 and the delay block 36-2 are reset, delaying the closing of the switching mechanism 4.

[0072] Specifically, a rubber pad 36-11 is fixed on the surface of the resistance block 36-10, and it cooperates with the delay block 36-2. The rubber pad 36-11 increases the friction between the resistance block 36-10 and the delay block 36-2. When the high-temperature flue gas comes into contact with the conductive component 32, it can heat up quickly, giving the vertical pipe 33 and the delay block 36-2 a large instantaneous force, which can overcome the effect of the rubber pad 36-11 moving with the resistance block 36-10. However, when the temperature is low, the delay block 36-2 is obstructed by the rubber pad 36-11 when it moves up and resets with the vertical pipe 33. It needs to be overcome slowly, thereby delaying the connection between the switching mechanism 4 and the filter cooling mechanism 2 and the water pipe 47, realizing delayed shutdown, utilizing the residual heat in the device, and playing an auxiliary cooling role.

[0073] A spring sheet 36-12 is fixed between the surface of the fixed plate 36-3 and the surface of the vertical plate 36-7, and a spring sheet 36-13 is fixed between the surface of the fixed plate 36-3 and the surface of the pressing block 36-9. Through the setting of the spring sheet 36-12 and the spring sheet 36-13, they deform when the vertical plate 36-7 and the pressing block 36-9 move, providing force for subsequent reset. The deformation of the spring sheet 36-13 acts on the rubber pad 36-11 with the help of the pressing block 36-9 and the resistance block 36-10, increasing the interaction between the rubber pad 36-11 and the delay block 36-2. A groove 36-14 is opened in the vertical cylinder 32-1. A slider 36-15 is fixed on the moving block 36-4 and slides in the groove 36-14. The groove 36-14 and the slider 36-15 limit and guide the moving block 36-4, allowing it to move within a certain range. Example 3

[0074] Reference Figures 3-24 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0075] Specifically, the positioning component 38 includes a positioning rod 38-1 that slides on the vertical tube 33, and it cooperates with positioning groove 39 and positioning groove 310 respectively. The positioning rod 38-1 passes through the vertical tube 33 and is slidably connected to it. A pull plate 38-2 is fixed to one end of the positioning rod 38-1. A spring 38-3 is sleeved on the surface of the positioning rod 38-1, and its two ends are fixed to the surface of the pull plate 38-2 and the surface of the vertical tube 33 respectively. A limiting groove 38-4 is opened in the vertical tube 33. A limiting block 38-5 is fixed on the positioning rod 38-1 and slides in the limiting groove 38-4.

[0076] The positioning rod 38-1 is guided and limited by the limiting groove 38-4 and the limiting block 38-5 to prevent it from detaching from the vertical tube 33 during movement. With the setting of spring 1 38-3, one end of the positioning rod 38-1 is inserted into the positioning groove 1 39 or the positioning groove 2 310 to prevent it from easily detaching. The rotated vertical rod 34 and valve ball 42 are positioned and fixed. With the setting of the pull plate 38-2, it is pulled to drive the positioning rod 38-1 to move laterally. Then, it is lifted to drive the positioning rod 38-1 and the vertical tube 33 to move upward. The necessary process is gradually unlocked when the machine is stopped for cleaning.

[0077] Specifically, the cleaning mechanism 5 includes an annular tube 51 fixed to the inner wall of the outer casing 11 by a support rod. A nozzle 52 is connected to the annular tube 51. A shielding component 53 is installed on the annular tube 51 and the outer casing 11, and it cooperates with the nozzle 52. Multiple annular tubes 51 are arranged inside the outer casing 11, and multiple nozzles 52 are installed on the annular tubes 51 in a circumferential array. A long tube 55 is fixedly connected to the outer casing 11. By setting the shielding component 53, the nozzles 52 are shielded and blocked when not in use, reducing the possibility of dust particles entering and causing blockage. A linkage component 54 is installed on the shielding component 53 and the cover 31, and is set on the outer casing 11. A long tube 55 is connected to the annular tube 51. One end of the long tube 55 extends to the outside of the outer casing 11 and is connected to a horizontal tube 56. A connecting pipe 57 is connected between the horizontal tube 56 and the short tube 46.

[0078] With the linkage 54 in place, during the process of the positioning member 38 transitioning from positioning slot 1 39 to positioning slot 2 310, the guide frame 311-5 on the fixing member 311 moves upward with the vertical pipe 33 and the delay block 36-2, which acts on the linkage 54, thereby causing the blocking member 53 to operate and leak water from the nozzle 52. During the upward movement of the vertical pipe 33, the ball bearing 35 drives the vertical rod 34 and the valve ball 42 to rotate. The switching mechanism 4 connects the water pipe 47 with the connecting pipe 57, so that water is sprayed out from the nozzle 52 through the connecting pipe 57, the horizontal pipe 56, the long pipe 55 and the ring pipe 51 to clean the surface of the hollow mesh plate 21 and the inner wall of the outer shell 11.

[0079] Specifically, the shielding component 53 includes a connecting rod 53-1 fixed to the ring tube 51. A circular frame 53-2 is fixed to one end of the connecting rod 53-1. A rotating rod 53-3 is rotatably mounted on the circular frame 53-2. The rotating rod 53-3 is fixedly connected to the circular frame 53-2 through a bearing. Two connecting rods 53-1 are fixed between one circular frame 53-2 and the ring tube 51. Baffles 53-4 are fixed to both ends of the rotating rod 53-3 and cooperate with the nozzle 52. A crossbar 53-5 is fixed on the baffle 53-4. A movable frame 53-6 is sleeved on the surface of the crossbar 53-5. A square plate 53-7 slides on the outer shell 11 and its lower end is fixed to the top of the movable frame 53-6. A guide post 53-8 is fixed to the upper end of the square plate 53-7. Torsion springs 53-9 are sleeved on both ends of the rotating rod 53-3 and their ends are respectively fixed to the surface of the rotating rod 53-3 and the inner wall of the circular frame 53-2.

[0080] By setting the movable frame 53-6, when it moves down with the square plate 53-7, it can press the crossbar 53-5 to move inside it, and with the cooperation of the baffle 53-4, it can rotate along the rotating rod 53-3. At the same time, the baffle 53-4 rotates, so that it is misaligned with the water outlet end of the nozzle 52, exposing the nozzle 52. During subsequent water output, the surface of the hollow mesh plate 21 and the inner wall of the outer shell 11 are rinsed. By setting the torsion spring 53-9, when the baffle 53-4 rotates and drives the rotating rod 53-3 to rotate, it deforms, and the torque generated provides a force for the subsequent reset of the rotating rod 53-3, the baffle 53-4 and the crossbar 53-5.

[0081] Specifically, the linkage 54 includes a frame 54-1 fixed to the top of the outer shell 11. A horizontal plate 54-2 slides on the frame 54-1. The horizontal plate 54-2 has a second oblique hole 54-3, and a second guide post 53-8 slides inside it. The horizontal plate 54-2 is provided with multiple second oblique holes 54-3. Through the setting of the second oblique holes 54-3, when it moves with the horizontal plate 54-2, the second guide post 53-8 can move inside it, thereby causing the second guide post 53-8 and the square plate 53-7 to move downward, thereby driving the moving frame 53-6 to move downward and act on the crossbar 53-5.

[0082] An L-shaped plate 54-4 slides on the cover 31. A square frame 54-5 is fixed to the upper end of the L-shaped plate 54-4. A sliding plate 54-6 slides on the frame 54-1, and its lower end is fixed to the top of the square frame 54-5. A guide groove 54-7 is opened on one end surface of the horizontal plate 54-2. A guide rod 54-8 is fixed to the upper end of the sliding plate 54-6 and slides in the guide groove 54-7. A spring 54-9 is sleeved on the lower end surface of the L-shaped plate 54-4, and its two ends are respectively fixed to the L-shaped plate 54-1. 4-4 Surface and inner wall of cover 31, L-shaped plate 54-4 penetrates cover 31 and is slidably connected to it, square frame 54-5 is sleeved on the surface of air outlet pipe 13 so that when L-shaped plate 54-4 moves up and down, it is not affected by air outlet pipe 13. Guide groove 54-7 is divided into two parts. The first part is that when guide rod 54-8 moves in it, it can move horizontal plate 54-2. The second part is that when guide rod 54-8 moves in it, it will not move horizontal plate 54-2.

[0083] During the process of positioning component 38 transitioning from positioning groove 1 39 to positioning groove 2 310, guide frame 311-5 on fixing component 311 moves upward along with vertical tube 33 and delay block 36-2. The upper end of guide frame 311-5 contacts the bottom of L-shaped plate 54-4, causing it to move upward, which in turn causes square frame 54-5 and slide plate 54-6 to move upward, so that guide rod 54-8 moves from the first part of guide groove 54-7 into the second part, thereby stopping the horizontal plate 54-2 after it moves, driving guide post 2 53-8 and square plate 53-7 to move downward. Through the setting of spring 2 54-9, L-shaped plate 54-4 deforms during the upward movement, providing force for the corresponding structure on subsequent linkage component 54 to reset. Example 4

[0084] Reference Figures 2 to 27 This is the fourth embodiment of the present invention, which is based on the first three embodiments.

[0085] Specifically, a collection mechanism 6 is installed on the outer casing 11, including a collection cylinder 61 that slides on the inner wall of the outer casing 11. A collection groove 62 is provided on the collection cylinder 61. A docking post 63 slides on the outer casing 11, and one end of the post is fixed to one end of the collection cylinder 61. A handle is fixed to one end of the collection cylinder 61. The collection cylinder 61 and the docking post 63 are sealed to the outer casing 11. The stains dripping inside the device accumulate at the bottom inside the outer casing 11 and flow into the collection groove 62 along the inner wall. When it is necessary to discharge them, the handle is held and the collection cylinder 61 is rotated to align the collection groove 62 with the drain trough 14. Then the stains are discharged along the drain trough 14. After discharge, the device is restored. During this process, the outer casing 11 is never connected to the atmosphere. As the collection groove 62 rotates with the collection cylinder 61, it does not connect the drain trough 14 with the flue gas inside the outer casing 11.

[0086] The other end of the docking post 63 has a hollow post 64 that rotates. The hollow post 64 is rotatably connected to the docking post 63 through a bearing. The surface of the hollow post 64 has an insertion hole 65 and a counterweight ball 66 is fixed on the surface of the hollow post 64. With the setting of the counterweight ball 66, no matter what angle the collecting tube 61 is inserted into the outer shell 11, the hollow post 64 on the docking post 63 can ensure that the insertion hole 65 is horizontal. This makes it convenient for the spline rod 311-2 on the subsequent fastener 311 to be accurately inserted into the insertion hole 65, thereby fixing the docking post 63 and the collecting tube 61 and preventing the collecting tube 61 from moving on the outer shell 11 due to external forces.

[0087] Specifically, the feedback drive component 3 also includes a fixing component 311 fixed to the housing 11 and the delay block 36-2. Through the setting of the fixing component 311, when the purification device is running, the fixing component 311 fixes the collection mechanism 6 by means of the action of the conductor 32 on the vertical pipe 33 and the delay block 36-2, preventing the collection mechanism 6 from moving off the device during use and causing leakage of flue gas inside the device, thus improving the safety during use. It also includes a connecting plate 311-1 fixed to one side of the housing 11. A spline rod 311-2 slides on the connecting plate 311-1 and cooperates with the socket 65. The spline rod 311-2 passes through the connecting plate 311-1 and slides with it. The spline groove on the spline rod 311-2 allows the spline rod 311-2 to move only on the connecting plate 311-1 and prevents it from rotating.

[0088] A short column 311-3 is fixed to the surface of the spline rod 311-2, and a Z-shaped plate 311-4 is fixed to the surface of the delay block 36-2. A guide frame 311-5 is fixed to one end of the Z-shaped plate 311-4, and the short column 311-3 slides inside it. The guide frame 311-5 and the delay block 36-2 are indirectly connected through the Z-shaped plate 311-4, so that when the delay block 36-2 moves with the vertical tube 33, it can drive the guide frame 311-5 to move together. The guide frame 311-5 is divided into three parts. The first and third parts are such that when the short column 311-3 moves inside it, the spline rod 311-2 will not move. The second part is such that when the short column 311-3 moves inside it, the spline rod 311-2 can move.

[0089] Driven by the transmission component 32, when the delay block 36-2 moves down with the vertical tube 33 or when the delayed block 36-2 moves up with the vertical tube 33 to reset, the short column 311-3 moves in the first part of the guide frame 311-5, so that the spline rod 311-2 inserted into the insertion hole 65 on the hollow column 64 will not move and will not release the limit on the collection mechanism 6. During the process of inserting the positioning rod 38-1 into the positioning slot 1 39, the short column 311-3 moves from the first part of the guide frame 311-5 through the second part into the third part, so that the spline rod 311-2 moves away from the insertion hole 65 and releases the fixation on the collection mechanism 6, and the maintenance and cleaning personnel can operate the collection mechanism 6. During the process of inserting the positioning rod 38-1 from the positioning slot 1 39 into the positioning slot 2 310, the short column 311-3 moves in the third part of the guide frame 311-5, so that the spline rod 311-2 will not move again. Example 5

[0090] Reference Figures 1 to 26 This is the fifth embodiment of the present invention, which is based on the previous four embodiments.

[0091] Specifically, one end of the short pipe 44 is connected to a water pipe 47, and an inspection door 15 is fixed to the outer casing 11 by bolts. The inspection door 15 is used to remove the device, which facilitates the maintenance and cleaning personnel to carry out in-depth maintenance and cleaning inside the device.

[0092] Specifically, the guide hole 37 includes slot 1 37-1, slot 2 37-2, slot 3 37-3, slot 4 37-4, slot 5 37-5, slot 6 37-6, and slot 7 37-7, which are interconnected. When the ball 35 moves within slot 1 37-1, slot 3 37-3, slot 5 37-5, and slot 7 37-7, it will not cause the vertical rod 34 to rotate. When the ball 35 moves within slot 2 37-2, slot 4 37-4, and slot 6 37-6, it can cause the vertical rod 34 to rotate. When the conductor 32 acts on the vertical pipe 33, the ball 35 moves between slot 1 37-1, slot 2 37-2, and slot 3 37-3, thereby causing the vertical rod 34 and the valve ball 42 to rotate by a corresponding angle, thus realizing the control of opening and closing and the flow rate.

[0093] When the positioning element 38 moves the vertical tube 33 upward, the ball bearing 35 moves from the first slot 37-1 through the fourth slot 37-4 into the fifth slot 37-5, causing the vertical rod 34 and the valve ball 42 to rotate. The positioning rod 38-1 corresponds to the positioning groove 39. The positioning rod 38-1 is inserted into the positioning groove 39 to achieve positioning. Similarly, when the positioning rod 38-1 is inserted into the second positioning groove 310, the ball bearing 35 moves from the fifth slot 37-5 through the sixth slot 37-6 into the seventh slot 37-7, and then performs positioning.

[0094] In use, the conductive element 32 can drive the vertical pipe 33 according to the heat of the flue gas, causing it to move up or down. Then, with the help of the vertical rod 34 and the ball bearing 35 on it, the switching mechanism 4 is driven to adjust the water flow rate in the filter cooling mechanism 2. The hollow mesh plate 21 filters and traps the particles carried in the flue gas, allowing the gas to pass through and be discharged normally. After water is introduced, the flue gas can be cooled and heat exchanged. The vaporized liquid carried in the flue gas is cooled and liquefied when it encounters the lower temperature of the hollow mesh plate 21. It adheres to the hollow mesh plate 21 and can capture the particles. As the number of water droplets increases, the particles attached to the hollow mesh plate 21 can be carried down during the falling process and collected at the bottom of the outer shell 11.

[0095] When the incineration is stopped, the flue gas temperature drops. During the process of the vertical pipe 33 moving upward under the action of the conductive component 32, the delay component 36 can delay the vertical pipe 33, thereby delaying the closing of the water pipe 47 and the liquid inlet pipe 24 by the switching mechanism 4. This allows the residual high-temperature heat in the device to be utilized. By delaying the water flow closure, the water flow carries away the residual heat for utilization and also plays a role in cooling the device. After the incineration is stopped, the fixing component 311 is lifted and inserted into the positioning groove 39. During this process, the vertical pipe 33 moves upward and the vertical rod 34 rotates. The upward movement of the vertical pipe 33 acts on the fixing component 311, causing it to release the fixing of the collection mechanism 6. Pulling the collection mechanism 6 can remove it from the device and discharge the sludge collected inside for cleaning.

[0096] Pull the fixing piece 311 inserted into the positioning groove 39 upward and insert it into the positioning groove 310. During this process, the vertical pipe 33 continues to move upward and the vertical rod 34 continues to rotate, so that the guide frame 311-5 on the fixing piece 311 acts on the cleaning mechanism 5, removing the obstruction of the nozzle 52 on the cleaning mechanism 5. The rotation of the vertical rod 34 acts on the switching mechanism 4, so that the cleaning mechanism 5 is connected to the water pipe 47 through the switching mechanism 4, and then water is delivered into the cleaning mechanism 5 and sprayed out from the nozzle 52 to rinse the hollow mesh plate 21 and clean the inner wall of the outer shell 11. The rinsed material is discharged from the installation point of the collection mechanism 6 and the sewage tank 14.

[0097] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A purification device for waste incineration flue gas, characterized by: include, The housing mechanism (1) includes an outer shell (11), with an air inlet pipe (12) and an air outlet pipe (13) respectively connected to both sides of the outer shell (11), and a drain trough (14) is provided inside the outer shell (11). The filter cooling mechanism (2) is fixed on the outer shell (11) and includes a hollow mesh plate (21) fixed on the inner wall of the outer shell (11). The hollow mesh plate (21) is provided with air holes (22). A bent pipe (23) is connected between adjacent hollow mesh plates (21). An inlet pipe (24) and an outlet pipe (25) are respectively connected to the hollow mesh plates (21) on both sides. Feedback drive (3), installed on housing mechanism (1), includes a cover (31) fixed to one side of the outer shell (11), a conductor (32) is installed on the cover (31) and the air outlet pipe (13), a vertical tube (33) is fixed on the conductor (32), a vertical rod (34) slides on the inner wall of the vertical tube (33), a ball (35) is embedded on the upper surface of the vertical rod (34), a delay element (36) is installed on the conductor (32) and the vertical tube (33), a guide hole (37) is opened on the vertical tube (33) and the ball (35) slides in it, a positioning groove one (39) and a positioning groove two (310) are respectively opened on the surface of the vertical rod (34), a positioning element (38) is installed on the surface of the vertical tube (33) and it cooperates with the positioning groove one (39) and the positioning groove two (310) respectively; The switching mechanism (4), mounted on the feedback drive (3) and fixedly connected to the filter cooling mechanism (2), includes a valve housing (41) located at the lower end of the vertical rod (34), a valve ball (42) rotating inside the valve housing (41), the vertical rod (34) rotating on the valve housing (41) and its lower end fixed to the surface of the valve ball (42), a channel (43) opening on the valve ball (42), and short pipes one (44), two (45), and three (46) respectively connected to the valve housing (41), the two (45) being connected to the liquid inlet pipe (24); and, The cleaning mechanism (5) is installed on the outer casing (11) and the short tube three (46).

2. The purification device for waste incineration flue gas according to claim 1, characterized by: The conductive component (32) includes a vertical cylinder (32-1) fixed to the bottom of the air outlet pipe (13). A heat-conducting rod (32-2) is embedded at the upper end of the vertical cylinder (33). The lower end of the heat-conducting rod (32-2) extends into the inner cavity of the vertical cylinder (32-1) and is fixed with a heat-conducting block (32-3). An alloy part (32-4) is fixed at the bottom of the heat-conducting block (32-3). A round block (32-5) is fixed at the lower end of the alloy part (32-4) and slides inside the vertical cylinder (32-1). The vertical cylinder (33) slides on the vertical cylinder (32-1) and its upper end is fixed to the bottom of the round block (32-5). The upper end of the heat-conducting rod (32-2) extends into the inner cavity of the air outlet pipe (13) and is fixed with a heat-conducting plate (32-6).

3. The waste incineration flue gas purification device as described in claim 2, characterized in that: The delay component (36) includes a drive plate (36-1) fixed to the surface of the vertical tube (33) and sliding on the vertical cylinder (32-1). A delay block (36-2) is sleeved on the lower surface of the vertical tube (33). A fixing plate (36-3) is fixed to the bottom of the vertical cylinder (32-1). A moving block (36-4) slides on the vertical cylinder (32-1). A roller (36-5) rotates at one end of the moving block (36-4) and cooperates with the drive plate (36-1). The other end of the moving block (36-4) has an oblique hole (36-6). A vertical plate (36-7) slides on the fixed plate (36-3). A guide post (36-8) is fixed at the upper end of the vertical plate (36-7) and slides in the oblique hole (36-6). A pressing block (36-9) slides at the lower end of the fixed plate (36-3) and cooperates with the vertical plate (36-7). A resistance block (36-10) is fixed at one end of the pressing block (36-9).

4. The waste incineration flue gas purification device as described in claim 3, characterized in that: A rubber pad (36-11) is fixed on the surface of the resistance block (36-10) and it cooperates with the delay block (36-2). A spring piece (36-12) is fixed between the surface of the fixed plate (36-3) and the surface of the vertical plate (36-7). A spring piece (36-13) is fixed between the surface of the fixed plate (36-3) and the surface of the extrusion block (36-9). A sliding groove (36-14) is opened in the vertical cylinder (32-1). A slider (36-15) is fixed on the moving block (36-4) and slides in the sliding groove (36-14).

5. The waste incineration flue gas purification device as described in claim 1, characterized in that: The positioning component (38) includes a positioning rod (38-1) that slides on the vertical tube (33) and is respectively engaged with positioning groove one (39) and positioning groove two (310). One end of the positioning rod (38-1) is fixed with a pull plate (38-2). A spring one (38-3) is sleeved on the surface of the positioning rod (38-1) and its two ends are respectively fixed to the surface of the pull plate (38-2) and the surface of the vertical tube (33). A limiting groove (38-4) is opened in the vertical tube (33). A limiting block (38-5) is fixed on the positioning rod (38-1) and slides in the limiting groove (38-4).

6. The waste incineration flue gas purification device as described in claim 1, characterized in that: The cleaning mechanism (5) includes an annular tube (51) fixed to the inner wall of the outer shell (11) by a support rod. A nozzle (52) is connected to the annular tube (51). A shield (53) is installed on the annular tube (51) and the outer shell (11) and cooperates with the nozzle (52). A linkage (54) is installed on the shield (53) and the cover (31) and is set on the outer shell (11). A long tube (55) is connected to the annular tube (51). One end of the long tube (55) extends to the outside of the outer shell (11) and is connected to a horizontal tube (56). A connecting tube (57) is connected between the horizontal tube (56) and the short tube (46).

7. The waste incineration flue gas purification device as described in claim 6, characterized in that: The shielding component (53) includes a connecting rod (53-1) fixed on the ring tube (51). A circular frame (53-2) is fixed at one end of the connecting rod (53-1). A rotating rod (53-3) is rotatably mounted on the circular frame (53-2). Both ends of the rotating rod (53-3) are fixed with baffles (53-4), which cooperate with the nozzle (52). A crossbar (53-5) is fixed on the baffle (53-4). A movable frame (53-6) is sleeved on the surface of the crossbar (53-5). A square plate (53-7) slides on the outer shell (11), and its lower end is fixed to the top of the movable frame (53-6). A guide post (53-8) is fixed at the upper end of the square plate (53-7). Torsion springs (53-9) are sleeved on both ends of the rotating rod (53-3), and their ends are respectively fixed to the surface of the rotating rod (53-3) and the inner wall of the circular frame (53-2).

8. The waste incineration flue gas purification device as described in claim 7, characterized in that: The linkage component (54) includes a frame (54-1) fixed to the top of the outer shell (11), a horizontal plate (54-2) sliding on the frame (54-1), a second oblique hole (54-3) on the horizontal plate (54-2), and a second guide post (53-8) sliding inside the oblique hole (54-3). An L-shaped plate (54-4) sliding on the cover (31) has a square frame (54-5) fixed to the upper end of the L-shaped plate (54-4). A sliding plate (54-6) is attached to the top of a square frame (54-5). A guide groove (54-7) is provided on one end of the surface of the horizontal plate (54-2). A guide rod (54-8) is fixed on the upper end of the sliding plate (54-6) and slides in the guide groove (54-7). A spring (54-9) is sleeved on the lower end surface of the L-shaped plate (54-4) and its two ends are respectively fixed to the surface of the L-shaped plate (54-4) and the inner wall of the cover (31).

9. The waste incineration flue gas purification device as described in claim 3, characterized in that: The outer shell (11) is equipped with a collection mechanism (6), including a collection cylinder (61) that slides on the inner wall of the outer shell (11). The collection cylinder (61) has a collection groove (62). A docking post (63) slides on the outer shell (11), and one end of the post is fixed to one end of the collection cylinder (61). A hollow post (64) rotates at the other end of the docking post (63). An insertion hole (65) is opened on the surface of the hollow post (64). A counterweight ball (66) is fixed on the surface of the hollow post (64).

10. The waste incineration flue gas purification device as described in claim 9, characterized in that: The feedback drive (3) also includes a fixing member (311) fixed on the housing (11) and the delay block (36-2), including a connecting plate (311-1) fixed on one side of the housing (11), a spline rod (311-2) sliding on the connecting plate (311-1) and cooperating with the socket (65), a short column (311-3) fixed on the surface of the spline rod (311-2), a Z-shaped plate (311-4) fixed on the surface of the delay block (36-2), a guide frame (311-5) fixed at one end of the Z-shaped plate (311-4), and the short column (311-3) sliding inside it.

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