Tail gas purification equipment for thermal power generation

Abstract

The invention discloses tail gas purification equipment for thermal power generation, and belongs to the field of thermal power generation, the tail gas purification equipment comprises a box body, a knocking device is assembled in the box body, and a sieve plate is fixedly connected to the front surface of the inner wall of the box body; a sliding groove is formed in the bottom of the inner wall of the box body, an air suction cover is slidably connected to the inner wall of the sliding groove, a limiting ring is fixedly connected to the outer wall of the air suction cover, a hydraulic assembly fixedly penetrates through the outer wall of the box body, a first rotating rod is rotatably connected to the front face of the inner wall of the air suction cover, and a first air plate fixedly sleeves the outer wall of the first rotating rod. And the outer wall of the first rotating rod is fixedly connected with a first extrusion rod. When the outside temperature is reduced and smoke becomes less, fan blades stop rotating, a second air plate drives a second rotating rod, a second extrusion rod, a fourth hydraulic rod and the like to act through less smoke, pressure is adjusted, and weak smoke is forced to push the fan blades to rotate again. Therefore, even under the condition that the flue gas flow is small, operation can still be kept.

Description

Technical Field

[0001] The present application relates to the field of thermal power generation, and more particularly, to an exhaust gas purification device for thermal power generation. Background Art

[0002] Thermal power generation is an important power generation method. It generates heat energy by burning fossil fuels (such as coal, oil, natural gas, etc.), and then drives a turbine to generate electricity. However, this power generation method will produce a large amount of flue gas, which contains various pollutants, such as sulfur dioxide, nitrogen oxides, particulate matter, etc. These pollutants have potential hazards to the environment and human health.

[0003] The patent document with the publication number CN119406163A discloses a waste heat recovery and utilization device for thermal power generation, belonging to the technical field of waste heat recovery. When the fan blade drives the connecting rod to rotate, and the connecting rod drives the rotating ring to rotate through multiple support rods, during the process that the rotating ring drives the knocking assembly to rotate, when the inclined surface of the knocking block contacts the wedge block at the bottom of the clamping ring, the knocking block will move downward. When the knocking block disengages from the wedge block, through the elastic support of the spring, the telescopic rod drives the knocking block to quickly move upward and knock the clamping ring, and the clamping ring transmits the vibration to the filtering assembly, so that the particulate impurities attached to the filter plate can be shaken off. As the knocking assembly continues to rotate, the knocking block can intermittently knock the clamping ring to improve the clogging removal effect of the filter plate. The shaken-off particulate impurities fall on the tray. Therefore, when cleaning the clogging of the filter plate, there is no need to stop the machine and remove the filtering assembly, so that the service cycle of the filtering assembly is long, the work burden is reduced, and at the same time, the waste heat recovery and utilization efficiency of the flue gas is improved. Although in the above application document, when cleaning the clogging of the filter plate, there is no need to stop the machine and remove the filtering assembly, so that the service cycle of the filtering assembly is long, the work burden is reduced, and at the same time, the waste heat recovery and utilization efficiency of the flue gas is improved, but during use, when the temperature suddenly drops, the flue gas will decrease, resulting in a slower rotation speed of the fan blade and unable to perform knocking. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an exhaust gas purification device for thermal power generation, which solves the problems raised in the above background art.

[0005] To achieve the above object, the present application provides an exhaust gas purification device for thermal power generation, including a box body, a knocking device is assembled inside the box body, and a sieve plate is fixedly connected to the front surface of the inner wall of the box body; A chute is provided at the bottom of the inner wall of the box body. An air suction hood is slidably connected to the inner wall of the chute. A limiting ring is fixedly connected to the outer wall of the air suction hood. A hydraulic component is fixedly penetrated through the outer wall of the box body. A first rotating rod is rotatably connected to the front surface of the inner wall of the air suction hood. A first wind plate is fixedly sleeved on the outer wall of the first rotating rod. A first extrusion rod is fixedly connected to the outer wall of the first rotating rod. A second rotating rod is rotatably connected to the front surface of the inner wall of the air suction hood. A second wind plate is fixedly sleeved on the outer wall of the second rotating rod. A second extrusion rod is fixedly connected to the back surface of the second rotating rod. A cleaning device for cleaning the sieve plate is assembled inside the box body, and a connecting device for linking the cleaning device is assembled inside the box body.

[0006] Preferably, the hydraulic component includes a first hydraulic chamber fixedly connected to the bottom of the inner wall of the box body. A first hydraulic rod is slidably connected to one end of the piston inside the first hydraulic chamber, and a second hydraulic rod is slidably connected to one end of the piston inside the first hydraulic chamber.

[0007] Preferably, a second hydraulic chamber is fixedly connected to the bottom of the inner wall of the box body. A third hydraulic rod is slidably connected to one end of the piston inside the second hydraulic chamber, and a fourth hydraulic rod is slidably connected to one end of the piston inside the second hydraulic chamber. The first hydraulic rod is fixedly connected to the outer wall of the limiting ring, and the third hydraulic rod is fixedly connected to the outer wall of the limiting ring.

[0008] Preferably, the knocking device includes a fixing plate fixedly connected to the front surface of the inner wall of the box body. A third rotating rod is rotatably connected to the bottom of the fixing plate through a bearing. A fan blade is fixedly connected to the bottom of the third rotating rod. The third rotating rod extends upward through the fixing plate in an active manner. A third extrusion rod is fixedly connected to the top of the third rotating rod. A cross plate is fixedly connected to the front surface of the inner wall of the box body. A sliding rod movably penetrates through the top of the cross plate. A conical block is fixedly connected to the bottom of the sliding rod. A spring is movably sleeved on the outer wall of the sliding rod.

[0009] Preferably, the connecting device includes a connecting rod fixedly connected to the outer wall of the limiting ring. A receiving groove is provided on the right side of the inner wall of the box body. A third hydraulic chamber is fixedly connected to the front surface of the inner wall of the receiving groove. A fifth hydraulic rod is slidably connected to one end of the piston inside the third hydraulic chamber, and a sixth hydraulic rod is slidably connected to one end of the piston inside the third hydraulic chamber.

[0010] Preferably, the fifth hydraulic rod is fixedly connected to the right side of the connecting rod, the sixth hydraulic rod is fixedly connected to a trigger block at the top, and a switch is fixedly connected to the right side of the inner wall of the receiving groove.

[0011] Preferably, the cleaning device includes a motor, the motor is fixedly connected to the right side of the box body, the fourth rotating rod is rotatably connected to the right side inner wall of the box body through a bearing, a first bevel gear is fixedly connected to the left side of the fourth rotating rod, a fifth rotating rod is fixedly connected to the top of the third rotating rod, and a second bevel gear is fixedly connected to the top of the fifth rotating rod.

[0012] Preferably, an elastic telescopic rod is fixedly connected to the outer wall of the fifth rotating rod, and a conical plate is fixedly connected to the top of the sieve plate.

[0013] The advantages of the present application are as follows: First, when the external temperature drops and the flue gas becomes less, the fan blade stops rotating. With less flue gas, the second air plate drives a series of actions such as the second rotating rod, the second extrusion rod, and the fourth hydraulic rod to adjust the pressure and force the weak flue gas to push the fan blade to rotate again. This ensures continuous operation even when the flue gas flow rate is small.

[0014] Second, the movement of the limiting ring triggers the movement of the connecting rod. This is the starting point of the entire action chain. When the switch is squeezed, the sixth hydraulic rod continues to rise, ultimately causing the motor to be briefly powered on.

[0015] Third, by triggering the brief power-on of the motor, a series of components such as the fourth rotating rod, the first bevel gear, and the second bevel gear are driven to rotate. During the rotation, the elastic telescopic rod cleans the top of the sieve plate through the shape of the conical plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present application, making other features, objectives, and advantages of the present application more obvious. The schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of a partial structure of the present invention Figure 1 ; Figure 3 is a schematic diagram of a partial structure of the present invention Figure 2 ; Figure 4 is a schematic diagram of the front sectional structure of the present invention Figure 1 ; Figure 5 is a schematic diagram of the front sectional structure of the present invention Figure 2 ; Figure 6 is of the present invention Figure 5 the enlarged schematic diagram of the structure at A in; Figure 7 is of the present invention Figure 5Schematic diagram of the enlarged structure at B in the [original context, not clear from given text].

[0017] In the above figures, 1. Box body; 21. Suction hood; 22. Limiting ring; 23. Slide groove; 24. First hydraulic chamber; 25. First hydraulic rod; 26. Second hydraulic rod; 27. First rotating rod; 28. First air plate; 29. First extrusion rod; 210. Second hydraulic chamber; 211. Third hydraulic rod; 212. Fourth hydraulic rod; 213. Second rotating rod; 214. Second extrusion rod; 215. Second air plate; 3. Connecting device; 31. Connecting rod; 32. Fifth hydraulic rod; 33. Third hydraulic chamber; 34. Sixth hydraulic rod; 35. Trigger block; 36. Switch; 4. Cleaning device; 41. Motor; 42. Fourth rotating rod; 43. First bevel gear; 44. Fifth rotating rod; 45. Second bevel gear; 46. Elastic telescopic rod; 47. Conical plate; 5. Knocking device; 51. Fixed plate; 52. Third rotating rod; 53. Fan blade; 54. Cross plate; 55. Slide bar; 56. Conical block; 57. Spring; 6. Sieve plate. Detailed implementation manners

[0018] In order to enable those skilled in the art of this technology to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope of protection of this application.

[0019] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of this application here. In addition, the terms "include" and "have" and any of their deformations are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily need to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0020] In this application, the orientation or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. are based on the orientation or positional relationships shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements, or components must have a specific orientation, or be constructed and operated in a specific orientation.

[0021] Moreover, in addition to being able to represent orientation or positional relationships, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0022] In addition, the terms "installed", "set up", "provided with", "connected", "connected to", "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The following will refer to the drawings and combine with embodiments to detail this application.

[0024] Embodiment 1, see Figures 1 - 5 , this embodiment provides an exhaust gas purification device for thermal power generation, including a box body 1, a knocking device 5 is assembled inside the box body 1, and a sieve plate 6 is fixedly connected to the front surface of the inner wall of the box body 1; A chute 23 is provided at the bottom of the inner wall of the box body 1. A suction hood 21 is slidably connected to the inner wall of the chute 23. A limiting ring 22 is fixedly connected to the outer wall of the suction hood 21. A hydraulic component is fixedly penetrated through the outer wall of the box body 1. A first rotating rod 27 is rotatably connected to the front surface of the inner wall of the suction hood 21. A first wind plate 28 is fixedly sleeved on the outer wall of the first rotating rod 27. A first extrusion rod 29 is fixedly connected to the outer wall of the first rotating rod 27. A second rotating rod 213 is rotatably connected to the front surface of the inner wall of the suction hood 21. A second wind plate 215 is fixedly sleeved on the outer wall of the second rotating rod 213. A second extrusion rod 214 is fixedly connected to the back surface of the second rotating rod 213. A cleaning device 4 for cleaning the sieve plate 6 is assembled inside the box body 1. A connecting device 3 for linking the cleaning device 4 is assembled inside the box body 1. The box body 1 serves as the outer shell of the entire device and is internally equipped with a knocking device 5 for knocking on the components inside the device to prevent the accumulation of substances such as dust. The sieve plate 6 is fixed to the front surface of the inner wall of the box body 1 and functions to filter large-particle impurities in the exhaust gas. The suction hood 21 is slidably connected in the chute 23 at the bottom of the inner wall of the box body 1, and the limiting ring 22 outside the suction hood 21 plays a limiting role. The hydraulic component penetrates through the outer wall of the box body 1 and is used to drive the suction hood 21 to move. The first rotating rod 27 and the second rotating rod 213 inside the suction hood 21 drive the first wind plate 28 and the second wind plate 215 to rotate respectively. The first extrusion rod 29 and the second extrusion rod 214 are used to rotate the first wind plate 28 and the second wind plate 215 to cause the limiting ring 22 and the suction hood 21 to move, realizing the change of the wind direction, so as to more effectively collect and purify the exhaust gas. The cleaning device 4 is used to clean the sieve plate 6, and the connecting device 3 is used to link the cleaning device 4 to realize the automatic operation of the device. The hydraulic component includes a first hydraulic chamber 24, which is fixedly connected to the bottom of the inner wall of the box body 1. A first hydraulic rod 25 is slidably connected to the piston at one end inside the first hydraulic chamber 24. A second hydraulic rod 26 is slidably connected to the piston at one end inside the first hydraulic chamber 24. The pistons of the first hydraulic rod 25 and the second hydraulic rod 26 slide inside the first hydraulic chamber 24 to drive the suction hood 21 to move and adjust the position to adapt to different working conditions and improve the purification efficiency. A second hydraulic chamber 210 is fixedly connected to the bottom of the inner wall of the box body 1. A third hydraulic rod 211 is slidably connected to the piston at one end inside the second hydraulic chamber 210. A fourth hydraulic rod 212 is slidably connected to the piston at one end inside the second hydraulic chamber 210. The first hydraulic rod 25 is fixedly connected to the outer wall of the limiting ring 22. The third hydraulic rod 211 is fixedly connected to the outer wall of the limiting ring 22. The pistons of the third hydraulic rod 211 and the fourth hydraulic rod 212 slide inside the second hydraulic chamber 210 and are jointly fixed to the outer wall of the limiting ring 22 with the first hydraulic rod 25 to precisely control the position of the suction hood 21 and ensure its stable movement, enhancing the operating stability of the device.The striking device 5 includes a fixed plate 51, which is fixedly connected to the front of the inner wall of the box body 1. The bottom of the fixed plate 51 is rotatably connected to a third rotating rod 52 via a bearing. The bottom of the third rotating rod 52 is fixedly connected to a fan blade 53. The third rotating rod 52 movably passes through the fixed plate 51 and extends to the top. The top of the third rotating rod 52 is fixedly connected to a third extrusion rod. The front of the inner wall of the box body 1 is fixedly connected to a cross plate 54. The top of the cross plate 54 movably passes through a slide bar 55. The bottom of the slide bar 55 is fixedly connected to a conical block 56. The outer wall of the slide bar 55 is movably sleeved with a spring 57. The bottom of the fixed plate 51 is rotatably connected to the third rotating rod 52 via a bearing. The bottom of the third rotating rod 52 is fixed to the fan blade 53 and the top is fixed to the third extrusion rod. When the exhaust gas flows through the device, the fan blade 53 is pushed by the airflow and rotates, driving the third rotating rod 52 to rotate. The rotation of the third rotating rod 52 causes the third extrusion rod at the top to produce a periodic extrusion effect on the slide bar 55 on the cross plate 54. The conical block 56 at the bottom of the slide bar 55 generates a knocking vibration on the sieve plate 6 under the elastic force of the spring 57. This vibration can effectively prevent the accumulation of dust on the sieve plate 6, maintain the air permeability of the sieve plate 6, thereby improving the fluidity and purification efficiency of the exhaust gas and ensuring the long-term stable operation of the equipment.

[0025] When the above-mentioned device is used, the air suction hood 21 is connected to the exhaust pipe, and the fan blade 53 is facing the center of the air suction hood 21. When the outside temperature drops and the smoke becomes less, the fan blade 53 can no longer rotate, driving the second wind plate 215 to rotate counterclockwise with the rotation point as the center of the circle, and the second wind plate 215 drives the second rotating rod 213 to rotate, and the second rotating rod 213 drives the second extrusion rod 214 to rotate, and the second extrusion rod 214 drives the fourth hydraulic rod 212 to rise. When the fourth hydraulic rod 212 rises, the internal pressure of the second hydraulic warehouse 210 increases, driving the third hydraulic rod 211 to move to the left. The shape of the third hydraulic rod 211 is 匚-shaped. The third hydraulic rod 211 drives the limiting ring 22 and the air suction hood 21 to move to the left, so that the weak smoke drives one of the fan blades 53 to rotate. When the smoke After becoming larger, the second wind plate 215 drives the first wind plate 28 to rotate counterclockwise, and the second wind plate 215 drives the second rotating rod 213 and the second extrusion rod 214 to rotate first. When the second extrusion rod 214 slides over the outer wall of the fourth hydraulic rod 212 and continues to rotate, the first extrusion rod 29 drives the second hydraulic rod 26 to rise, and the second hydraulic rod 26 drives the first hydraulic rod 25 to move to the right, and the first hydraulic rod 25 drives the limit ring 22 to reset. The fan blade 53 rotates and drives the third rotating rod 52 to rotate. The third rotating rod 52 drives the third extrusion rod to squeeze the conical block 56, causing the conical block 56 to descend, and the conical block 56 drives the slide rod 55 to descend. While the slide rod 55 descends, the spring 57 is squeezed. When the third extrusion rod slides over the outer wall of the conical block 56, the spring 57 drives the slide rod 55 to knock on the bottom of the sieve plate 6.

[0026] Example 2, see Figures 1 - 1, on the basis of Embodiment 1, the connecting device 3 includes a connecting rod 31. The connecting rod 31 is fixedly connected to the outer wall of the limiting ring 22. A receiving groove is formed in the right inner wall of the box body 1. The front inner wall of the receiving groove is fixedly connected with a third hydraulic chamber 33. One end of the piston in the third hydraulic chamber 33 is slidably connected with a fifth hydraulic rod 32, and one end of the piston in the third hydraulic chamber 33 is slidably connected with a sixth hydraulic rod 34. The connecting rod 31 is fixed to the outer wall of the limiting ring 22. The pistons of the fifth hydraulic rod 32 and the sixth hydraulic rod 34 slide in the third hydraulic chamber 33 in the receiving groove, converting the movement of the air suction hood 21 into other movements, realizing the automation and intelligence of the equipment. The fifth hydraulic rod 32 is fixedly connected to the right side of the connecting rod 31. A trigger block 35 is fixedly connected to the top of the sixth hydraulic rod 34. A switch 36 is fixedly connected to the right inner wall of the receiving groove. The fifth hydraulic rod 32 is connected to the connecting rod 31, and the trigger block 35 at the top of the sixth hydraulic rod 34 touches the switch 36, controlling the on-off of the circuit, realizing the automatic control of the equipment, and improving the operation stability and reliability.

[0027] When the above equipment is specifically used, the limiting ring 22 drives the connecting rod 31 to move to the left. The connecting rod 31 drives the fifth hydraulic rod 32 to move to the left. During the process of the fifth hydraulic rod 32 moving to the left, the sixth hydraulic rod 34 rises. The sixth hydraulic rod 34 drives the trigger block 35 to rise. After the protrusion of the trigger block 35 presses the switch 36, it continues to rise, causing the motor 41 to be powered on briefly.

[0028] Embodiment 3, see Figures 1 - 7 , on the basis of Embodiment 1, the cleaning device 4 includes a motor 41. The motor 41 is fixedly connected to the right side of the box body 1. The fourth rotating rod 42 is rotatably connected to the right inner wall of the box body 1 through a bearing. A first bevel gear 43 is fixedly connected to the left side of the fourth rotating rod 42. A fifth rotating rod 44 is fixedly connected to the top of the third rotating rod 52. A second bevel gear 45 is fixedly connected to the top of the fifth rotating rod 44. The motor 41 is on the right side of the box body 1. The fourth rotating rod 42 rotates, and the first bevel gear 43 meshes with the second bevel gear 45, transmitting the rotational movement to the position of the sieve plate 6, realizing the mechanical cleaning of the sieve plate 6, and improving the cleaning efficiency and effect. An elastic telescopic rod 46 is fixedly connected to the outer wall of the fifth rotating rod 44. A conical plate 47 is fixedly connected to the top of the sieve plate 6. The fourth rotating rod 42 movably penetrates the box body 1 and extends to the right. The output end of the motor 41 is fixedly connected to the extended end of the fourth rotating rod 42. The motor 41 is electrically connected to the switch 36. The elastic telescopic rod 46 outside the fifth rotating rod 44 and the conical plate 47 at the top of the sieve plate 6 cooperate to buffer the impact force during the cleaning process, protect the structural integrity of the sieve plate 6, and extend the service life of the equipment.

[0029] When the above-mentioned device is in specific use, when the motor 41 is powered on briefly, it drives the fourth rotating rod 42 to rotate. The fourth rotating rod 42 drives the first bevel gear 43 to rotate. The first bevel gear 43 drives the second bevel gear 45 to rotate. The second bevel gear 45 drives the fifth rotating rod 44 to rotate. The fifth rotating rod 44 drives the elastic telescopic rod 46 to rotate. Depending on the shape of the conical plate 47, the elastic telescopic rod 46 reciprocally contracts during rotation to clean the top of the sieve plate 6.

[0030] When the above-mentioned device is in specific use, as described above, the above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An exhaust gas purification device for thermal power generation, comprising a box body (1), wherein a knocking device (5) is assembled inside the box body (1), and a sieve plate (6) is fixedly connected to the front surface of the inner wall of the box body (1); It is characterized in that, A chute (23) is formed in the bottom of the inner wall of the box body (1), an air suction hood (21) is slidably connected to the inner wall of the chute (23), a limiting ring (22) is fixedly connected to the outer wall of the air suction hood (21), a hydraulic component is fixedly penetrated through the outer wall of the box body (1), a first rotating rod (27) is rotatably connected to the front surface of the inner wall of the air suction hood (21), a first wind plate (28) is fixedly sleeved on the outer wall of the first rotating rod (27), a first extrusion rod (29) is fixedly connected to the outer wall of the first rotating rod (27), a second rotating rod (213) is rotatably connected to the front surface of the inner wall of the air suction hood (21), a second wind plate (215) is fixedly sleeved on the outer wall of the second rotating rod (213), a second extrusion rod (214) is fixedly connected to the back surface of the second rotating rod (213), a cleaning device (4) for cleaning the sieve plate (6) is assembled inside the box body (1), and a connecting device (3) for linking the cleaning device (4) is assembled inside the box body (1).

2. The tail gas purification equipment for thermal power generation according to claim 1, wherein, The hydraulic component includes a first hydraulic chamber (24), the first hydraulic chamber (24) is fixedly connected to the bottom of the inner wall of the box body (1), a first hydraulic rod (25) is slidably connected to one end of the piston inside the first hydraulic chamber (24), and a second hydraulic rod (26) is slidably connected to one end of the piston inside the first hydraulic chamber (24).

3. An exhaust gas purification device for thermal power generation according to claim 1, characterized in that, A second hydraulic chamber (210) is fixedly connected to the bottom of the inner wall of the box body (1), a third hydraulic rod (211) is slidably connected to one end of the piston inside the second hydraulic chamber (210), a fourth hydraulic rod (212) is slidably connected to one end of the piston inside the second hydraulic chamber (210), the first hydraulic rod (25) is fixedly connected to the outer wall of the limiting ring (22), and the third hydraulic rod (211) is fixedly connected to the outer wall of the limiting ring (22).

4. An exhaust gas purification device for thermal power generation according to claim 1, characterized in that The knocking device (5) includes a fixing plate (51), the fixing plate (51) is fixedly connected to the front surface of the inner wall of the box body (1), a third rotating rod (52) is rotatably connected to the bottom of the fixing plate (51) through a bearing, a fan blade (53) is fixedly connected to the bottom of the third rotating rod (52), the third rotating rod (52) movably penetrates through the fixing plate (51) and extends upward, a third extrusion rod is fixedly connected to the top of the third rotating rod (52), a cross plate (54) is fixedly connected to the front surface of the inner wall of the box body (1), a sliding rod (55) movably penetrates through the top of the cross plate (54), a conical block (56) is fixedly connected to the bottom of the sliding rod (55), and a spring (57) is movably sleeved on the outer wall of the sliding rod (55).

5. An exhaust gas purification device for thermal power generation according to claim 1, characterized in that, The connecting device (3) includes a connecting rod (31), the connecting rod (31) is fixedly connected to the outer wall of the limiting ring (22), a receiving groove is formed on the right side of the inner wall of the box body (1), a third hydraulic chamber (33) is fixedly connected to the front surface of the inner wall of the receiving groove, a fifth hydraulic rod (32) is slidably connected to a piston at one end inside the third hydraulic chamber (33), and a sixth hydraulic rod (34) is slidably connected to a piston at one end inside the third hydraulic chamber (33).

6. The tail gas purification equipment for thermal power generation according to claim 1, characterized in that, The fifth hydraulic rod (32) is fixedly connected to the right side of the connecting rod (31), a trigger block (35) is fixedly connected to the top of the sixth hydraulic rod (34), and a switch (36) is fixedly connected to the right side of the inner wall of the receiving groove.

7. An exhaust gas purification device for thermal power generation according to claim 1, characterized in that, The cleaning device (4) includes a motor (41), the motor (41) is fixedly connected to the right side of the box body (1), a fourth rotating rod (42) is rotatably connected to the right side of the inner wall of the box body (1) through a bearing, a first bevel gear (43) is fixedly connected to the left side of the fourth rotating rod (42), a fifth rotating rod (44) is fixedly connected to the top of the third rotating rod (52), and a second bevel gear (45) is fixedly connected to the top of the fifth rotating rod (44).

8. The tail gas purification device for thermal power generation according to claim 1, characterized in that, An elastic telescopic rod (46) is fixedly connected to the outer wall of the fifth rotating rod (44), and a conical plate (47) is fixedly connected to the top of the sieve plate (6).

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