Waste gas filtering treatment device and method for incinerator

Abstract

The invention discloses a waste gas filtering treatment device and method for an incinerator, and relates to the technical field of waste gas filtering, the waste gas filtering treatment device comprises a dust treatment bin, a waste gas channel is arranged on one side of the dust treatment bin, and an air inlet is formed in the lower portion of one side of the waste gas channel. According to the air guide pipe, airflow directional guiding and dust primary filtering are achieved through the beveled opening and the inner filter frame plate, the follow-up load is reduced, waste gas is divided and rectified through a space multi-channel structure formed by the side flow plate, the pointed cone plate and the center U plate, the uniformity of a flow field is optimized, pressure balance between areas is achieved through the flow guide holes, and the effect of dust removal is improved. The key point is that the inclined plate and the built-in cooling pipe form an efficient heat conduction unit, the temperature of the waste gas is actively reduced, tar steam is promoted to be condensed into a liquid state, and on the basis, the adsorption felt on the gas guide plate and the high-specific-surface-area net-shaped structure of the adsorption plate have a synergistic effect, and condensed tar and fine particulate matter are efficiently captured.

Description

Technical Field

[0001] This invention relates to the field of waste gas filtration technology, and in particular to a waste gas filtration and treatment device and method for incinerators. Background Technology

[0002] For example, patent CN114870554A, entitled "An Organic Waste Gas Treatment Device," includes a primary treatment device, a spray tower, a UV curing oven, a multi-stage filter, an adsorption cylinder, and a regenerative thermal incinerator. The primary treatment device receives paint mist generated by a spray painting machine and performs preliminary treatment on it. The spray tower further treats paint residue and paint mist in the waste gas. The UV curing oven cures the paint mist in the waste gas. The multi-stage filter intercepts and absorbs paint mist particles. The adsorption cylinder absorbs volatile organic compounds in the waste gas and discharges the purified gas through a chimney. The regenerative thermal incinerator treats the waste gas desorbed from the adsorption cylinder and discharges the treated gas through a chimney. This invention has high waste gas treatment efficiency and good treatment effect, making it suitable for paint mist recovery and treatment in various spray painting processes.

[0003] In the process of treating incinerator exhaust gas, if high-temperature exhaust gas directly enters the filter bag area, the tar vapor in it will condense into a viscous liquid after cooling on the surface of the filter material or inside the pleats, and combine with dust to form a dense caking layer. This leads to a sharp decrease in the air permeability of the filter bag, failure of dust removal, increase in system pressure drop, increase in energy consumption, and a significant shortening of the filter bag life. It has limited effectiveness in dealing with caking dust caused by tar adhesion, high humidity, or long-term operation, and easily causes the filter bag to continuously increase resistance and decrease filtration efficiency. Therefore, this application provides an exhaust gas filtration treatment device and treatment method for incinerators to meet the requirements. Summary of the Invention

[0004] The purpose of this application is to provide a waste gas filtration and treatment device and method for incinerators, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a waste gas filtration and treatment device for an incinerator, including a dust treatment chamber, a waste gas channel is provided on one side of the dust treatment chamber, an air inlet is provided at the lower part of one side of the waste gas channel, and a waste gas diversion mechanism for guiding the flow of hot waste gas is provided at the lower part of the inner cavity of the waste gas channel and above the air inlet.

[0006] A baffle plate is provided on one side of the exhaust gas diversion mechanism, and several tar treatment mechanisms are installed at equal intervals along the horizontal direction on the upper end of the baffle plate to adsorb tar substances in the hot exhaust gas.

[0007] A fastener plate is fixedly installed on the upper part of the inner cavity of the dust treatment chamber, and several dust removal mechanisms arranged in a rectangular array are set inside the fastener plate. Several driving components arranged in a rectangular array are set at the upper end of the dust treatment chamber, and an agitation mechanism that works with the driving components to clean the dust deposited on the surface of the dust removal mechanisms is set at the lower part of the inner cavity of the dust treatment chamber.

[0008] The agitation mechanism includes a support frame, which is fixedly installed at the bottom of the inner cavity of the dust treatment chamber. Several striking seats arranged in a rectangular array are provided at the upper end of the support frame, and a spiral spring is sleeved on the outer surface of the striking seat. One end of the spiral spring is provided with a retaining ring.

[0009] The dust removal mechanism includes an mounting collar and a sliding sleeve. The mounting collar is installed inside the fastener plate. A support sleeve is provided at the lower end of the mounting collar. A sliding ring is provided at the lower end of the support sleeve. The support sleeve is slidably installed inside the sliding sleeve through the sliding ring. Several bottom holes are opened at the lower end of the sliding sleeve, and an mounting ring is provided at the lower end of the sliding sleeve.

[0010] The inner wall of the sliding sleeve is provided with a conical frame at the bottom, and a pull rope is provided at the middle of the upper end of the conical frame. One end of the pull rope extends into the interior of the drive component. A filter cylinder is provided at the upper end of the conical frame, and a corrugated filter sleeve is fitted on the outer surface of the filter cylinder.

[0011] The mounting ring has a support frame fitted on its outer surface, and a striking cushion is provided at the bottom of the support frame. A retaining ring is fitted on the outer surface of the striking cushion, and a dust bag is fitted on the outer surface of the support frame.

[0012] The exhaust gas diversion mechanism includes an outer frame, and the inner wall of the outer frame is provided with several air guide pipes arranged in a rectangular array. The lower ends of the air guide pipes are all obliquely cut, and the inner walls of the air guide pipes are all provided with filter plates.

[0013] The tar treatment mechanism includes a conical plate and two side flow plates, which are located on both sides of the central U-plate. The conical plate has a V-shaped cross-section, and both the side flow plates and the conical plate are fixedly installed on the upper end of the baffle plate.

[0014] Among them, an air guide plate is set between the pointed cone plate and the side flow plate, and the air guide plate is placed at an angle. Several ventilation holes are opened on the outer surface of the air guide plate. A central U plate is set on the inner wall of several air guide plates, and several flow guide holes are opened on both sides of the central U plate.

[0015] The tar treatment mechanism also includes a cooling pipe. Several inclined plates are provided on the outer surface of the cooling pipe, and inclined adsorption plates are provided on both the upper and lower sides of the inclined plates. The inclined plates and adsorption plates are located inside the central U-plate, and both ends of the cooling pipe are connected to external cooling water pipes.

[0016] This invention also employs a method for filtering and treating exhaust gas from an incinerator:

[0017] Step 1: The exhaust gas enters the exhaust gas channel through the air inlet. The denser and cooler heavy flue gas flows directly into the dust treatment chamber along the bottom of the exhaust gas channel under the action of gravity, while the cooler and lighter exhaust gas is guided upward into the tar treatment mechanism by the exhaust gas diversion mechanism.

[0018] Step 2: The light waste gas entering the tar treatment unit forms a directional flow path under the action of its internal guiding structure. The waste gas is cooled as it flows through the tar treatment unit, and the tar vapor contained therein is condensed and adsorbed on its inner surface. After the tar removal is completed, the purified waste gas is discharged into the dust treatment chamber.

[0019] Step 3: The exhaust gas entering the dust treatment chamber from the bottom of the tar treatment mechanism and exhaust gas channel is filtered by the dust removal mechanism. When the dust accumulated on the surface of the dust removal mechanism reaches the set level, the drive component is activated, pulling the dust removal mechanism upward to lift it. Then the drive component is released, and the dust removal mechanism falls back and impacts the agitator below. The vibration generated by this impact causes the dust attached to the surface of the dust removal mechanism to fall off.

[0020] In summary, the technical effects and advantages of this invention are as follows:

[0021] 1. The air duct in this invention utilizes oblique openings and internal filter plates to achieve directional airflow guidance and initial dust filtration, reducing subsequent load. Subsequently, a multi-channel spatial structure composed of side flow plates, pointed cone plates, and a central U-plate diverts and rectifies the exhaust gas, optimizing the flow field uniformity and achieving inter-regional pressure balance through flow guide holes, avoiding local eddies or dead zones. The key lies in the inclined plate and built-in cooling pipe forming a high-efficiency heat conduction unit, actively reducing the exhaust gas temperature and promoting the condensation of tar vapor into liquid. On this basis, the adsorption felt on the air guide plate and the high specific surface area mesh structure of the adsorption plate work together to efficiently capture condensed tar and fine particulate matter, realizing the integration of flow guidance, cooling, condensation, and adsorption. This effectively prevents tar from entering the downstream dust removal system, significantly reducing the risk of bag clogging while improving the tar removal rate.

[0022] 2. This invention uses conventional pulsed airflow for initial cleaning of the dust collector bag, removing most loose dust. For stubborn dust that is strongly adhered or caked, the drive mechanism is activated. The winding and releasing of the pull rope triggers the coordinated movement of the conical frame, corrugated filter sleeve, and sliding sleeve, lifting the entire support frame. The worm gear spring then stores energy and rebounds instantaneously, driving the striking pad to violently impact the striking seat, generating a high-intensity impact vibration that causes the dust collector bag to vibrate at high frequency, thus thoroughly removing deep-seated dust. The entire cleaning process requires no machine shutdown and does not affect normal exhaust gas filtration. Furthermore, the vent design on the sliding sleeve and support sleeve ensures that the airflow channel remains unobstructed throughout the cleaning process. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A first-person perspective three-dimensional structural diagram of the waste gas filtration and treatment device for an incinerator.

[0025] Figure 2 This is a second-view three-dimensional structural diagram of the waste gas filtration and treatment device for an incinerator.

[0026] Figure 3 A third-view three-dimensional structural diagram of the waste gas filtration and treatment device for an incinerator;

[0027] Figure 4 A fourth-view three-dimensional structural diagram of the waste gas filtration and treatment device for an incinerator;

[0028] Figure 5 A schematic diagram of the three-dimensional connection structure between the waste gas diversion mechanism and the tar treatment mechanism;

[0029] Figure 6 A schematic diagram of the three-dimensional connection structure between the dust removal mechanism and the dust treatment chamber;

[0030] Figure 7 A schematic diagram of the three-dimensional connection structure of the oscillating mechanism;

[0031] Figure 8 A three-dimensional sectional view of the connection structure of the oscillating mechanism;

[0032] Figure 9 A schematic diagram of the three-dimensional connection structure between the dust removal mechanism and the firmware board;

[0033] Figure 10 This is a three-dimensional sectional view of the connection structure of the dust removal mechanism;

[0034] Figure 11 A schematic diagram of the three-dimensional connection structure for supporting the frame and the impact cushion;

[0035] Figure 12 This is a schematic diagram of a partial three-dimensional connection structure of the dust removal mechanism;

[0036] Figure 13 This is a three-dimensional sectional view of the connection structure of the sliding sleeve.

[0037] Figure 14 A three-dimensional cross-sectional view of the connection structure between the sliding sleeve and the corrugated filter sleeve;

[0038] Figure 15 This is a schematic diagram of the three-dimensional connection structure of the exhaust gas diversion mechanism;

[0039] Figure 16 A schematic diagram of the internal three-dimensional connection structure of the exhaust gas diversion mechanism;

[0040] Figure 17 A schematic diagram of the three-dimensional connection structure between the tar treatment mechanism and the baffle plate;

[0041] Figure 18 This is a schematic diagram of the three-dimensional connection structure of the tar treatment mechanism;

[0042] Figure 19 This is a schematic diagram of a partial three-dimensional connection structure of a tar treatment mechanism;

[0043] Figure 20 A schematic diagram of the three-dimensional connection structure of the pointed cone plate, the air guide plate, and the side flow plate;

[0044] Figure 21 This is a schematic diagram of the three-dimensional connection structure of the air guide plate;

[0045] Figure 22 A schematic diagram of the three-dimensional connection structure of the central U-plate and the guide hole;

[0046] Figure 23 This is a schematic diagram of the three-dimensional connection structure of the cooling pipe and the inclined plate.

[0047] In the diagram: 1. Dust treatment chamber; 2. Exhaust gas passage; 3. Drive unit; 4. Air inlet; 5. Dust removal mechanism; 51. Dust bag; 52. Support frame; 53. Impact cushion; 54. Sliding sleeve; 55. Support sleeve; 56. Mounting ring; 57. Pull rope; 58. Mounting ring; 59. Bottom hole; 511. Slip ring; 512. Corrugated filter sleeve; 513. Conical frame; 514. Filter cartridge; 6. Agitator mechanism; 1. Support frame; 62. Spiral spring; 63. Striking seat; 64. Snap ring; 7. Exhaust gas diversion mechanism; 71. Outer basket; 72. Air duct; 73. Filter plate; 8. Tar treatment mechanism; 81. Side flow plate; 82. Conical plate; 83. Central U-plate; 84. Guide hole; 85. Air guide plate; 86. Ventilation hole; 87. Cooling pipe; 88. Inclined plate; 89. Adsorption plate; 9. Fastener plate; 10. Divider plate. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] Example 1, Reference Figures 1 to 23 The exhaust gas filtration and treatment device for an incinerator shown includes a dust treatment chamber 1, an exhaust gas channel 2 is provided on one side of the dust treatment chamber 1, an air inlet 4 is provided at the lower part of one side of the exhaust gas channel 2, and an exhaust gas diversion mechanism 7 for guiding the flow of hot exhaust gas is provided at the lower part of the inner cavity of the exhaust gas channel 2 and above the air inlet 4.

[0050] A partition plate 10 is provided on one side of the exhaust gas diversion mechanism 7, and several tar treatment mechanisms 8 are installed on the upper end of the partition plate 10 at equal intervals along the horizontal direction, which are used to adsorb tar substances in the hot exhaust gas.

[0051] A fastener plate 9 is fixedly installed on the upper part of the inner cavity of the dust treatment chamber 1, and a number of dust removal mechanisms 5 arranged in a rectangular array are provided inside the fastener plate 9. A number of driving components 3 arranged in a rectangular array are provided at the upper end of the dust treatment chamber 1, and an agitation mechanism 6 is provided at the lower part of the inner cavity of the dust treatment chamber 1 to clean the dust deposited on the surface of the dust removal mechanism 5 in conjunction with the driving components 3.

[0052] It is worth noting that the exhaust gas enters the exhaust gas channel 2 through the air inlet 4. The heavy flue gas with higher density and lower temperature flows directly into the dust treatment chamber 1 along the bottom of the exhaust gas channel 2 under the action of gravity, while the light exhaust gas with higher temperature and lower density is guided by the exhaust gas diversion mechanism 7 and enters the tar treatment mechanism 8 upward.

[0053] The light waste gas entering the tar treatment unit 8 forms a directional flow path under the action of its internal guiding structure. The waste gas is cooled during the flow through the tar treatment unit 8, and the tar vapor contained therein is condensed and adsorbed on its inner surface. After the tar removal is completed, the purified waste gas is discharged into the dust treatment chamber 1.

[0054] By utilizing the difference between gravity and buoyancy, heavy flue gas and light waste gas are naturally separated in the exhaust gas channel 2. The heavy flue gas directly enters the dust treatment chamber 1 for dust removal, avoiding interference from tar condensation. The light waste gas is guided to the tar treatment mechanism 8. Under the action of its internal guiding structure and cooling surface, the tar vapor is condensed and adsorbed, effectively preventing tar from entering the subsequent filtration system. This design significantly reduces the risk of bag clogging in the dust removal mechanism 5.

[0055] The exhaust gas entering the dust treatment chamber 1 from the bottom of the tar treatment mechanism 8 and the exhaust gas channel 2 is filtered by the dust removal mechanism 5. When the dust accumulated on the surface of the dust removal mechanism 5 reaches a set level, the drive component 3 is activated, pulling the dust removal mechanism 5 upward to lift it. Then the drive component 3 is released, and the dust removal mechanism 5 falls back and impacts the agitator 6 below. The vibration generated by this impact causes the dust attached to the surface of the dust removal mechanism 5 to fall off.

[0056] Furthermore, the device adopts a mechanical oscillating dust removal mechanism, which can achieve efficient online dust removal without stopping or interrupting the filtration process. When the dust accumulation on the surface of the dust removal mechanism 5 reaches the threshold, the drive component 3 triggers the oscillating mechanism 6 to generate instantaneous impact vibration through the action of pulling and releasing, so that the dust falls off under the action of inertia and restores the air permeability of the filter material. This can be frequently executed during the normal filtration of exhaust gas to ensure that the dust removal mechanism 5 is always in a high-efficiency working state.

[0057] Example 2: This example provides further technical solutions for the waste gas diversion mechanism 7 and the tar treatment mechanism 8.

[0058] The exhaust gas diversion mechanism 7 includes an outer frame 71, and the inner wall of the outer frame 71 is provided with a number of air guide pipes 72 arranged in a rectangular array. The lower ends of the air guide pipes 72 are all obliquely cut, and the inner walls of the air guide pipes 72 are all provided with filter plates 73.

[0059] It is worth noting that after the exhaust gas enters the exhaust gas channel 2 through the air inlet 4, the exhaust gas with higher temperature naturally flows upward due to buoyancy. This high-temperature exhaust gas is guided and concentrated upward by the air guide pipe 72. The lower end of the air guide pipe 72 is provided with a slanted opening to reduce airflow resistance and accurately control the initial flow direction of the exhaust gas. Inside the air guide pipe 72, there is also a filter plate 73, which is used to initially intercept and filter the dust in the rising airflow.

[0060] The tar treatment mechanism 8 includes a conical plate 82 and two side flow plates 81. The two side flow plates 81 are located on both sides of the central U-plate 83, and the cross section of the conical plate 82 is V-shaped. Both the side flow plates 81 and the conical plate 82 are fixedly installed on the upper end of the partition plate 10.

[0061] An air guide plate 85 is provided between the conical plate 82 and the side flow plate 81, and the air guide plate 85 is placed at an angle. Several ventilation holes 86 are opened on the outer surface of the air guide plate 85. A central U plate 83 is provided on the inner wall of several air guide plates 85, and several flow guide holes 84 are opened on both sides of the central U plate 83.

[0062] The tar treatment mechanism 8 also includes a cooling pipe 87. Several inclined plates 88 are provided on the outer surface of the cooling pipe 87, and inclined adsorption plates 89 are provided on both the upper and lower sides of the inclined plates 88. The inclined plates 88 and the adsorption plates 89 are both located inside the central U plate 83. Both ends of the cooling pipe 87 are connected to external cooling water pipes.

[0063] The exhaust gas, guided by the duct 72, enters the flow channel area formed by the side flow plate 81, the pointed cone plate 82, and the central U-plate 83, such as... Figure 19 The side flow plate 81, the pointed cone plate 82 and the central U plate 83 are arranged in a specific space to form a multi-channel guiding structure, which is used to divert and rectify the exhaust gas and finally guide the exhaust gas into the dust treatment chamber 1.

[0064] When the exhaust gas flows through the gap between the side flow plate 81 and the pointed cone plate 82, it needs to be further guided by the air guide plate 85. The surface of the air guide plate 85 is provided with multiple ventilation holes 86 to regulate the airflow distribution and reduce the local pressure drop. At the same time, the windward side of the air guide plate 85 is attached with adsorption felt to simultaneously adsorb the dust and tar components entrained in the exhaust gas.

[0065] At the same time, some exhaust gas enters the interior of the central U-plate 83 and is discharged upward or outward under the guidance of the inclined plate 88 on its inner wall. The side wall of the central U-plate 83 is provided with several guide holes 84, so that the airflow between the cone plate 82 and the side flow plate 81 can communicate with the airflow inside the central U-plate 83, so as to achieve pressure balance and flow coordination.

[0066] As the exhaust gas is guided out by the inclined plate 88, it is further filtered by the adsorption plate 89. The adsorption plate 89 has a mesh partition structure and a high specific surface area, which is used to efficiently capture and adsorb tar substances in the exhaust gas.

[0067] It is worth noting that the inclined plate 88 is fixedly installed on the outer surface of the cooling pipe 87 and closely attached to the inner wall of the central U plate 83. When the exhaust gas flows through the inclined plate 88, its heat is transferred to the cooling pipe 87 through metal conduction. The cooling pipe 87 is filled with circulating cooling water, which continuously removes heat, thereby actively cooling the inclined plate 88 and the adjacent area.

[0068] Because a good heat conduction path is formed between the inclined plate 88 and the central U-plate 83, the exhaust gas is effectively cooled when it flows through this area, causing the tar vapor to condense into liquid, which significantly improves the tar collection efficiency of the adsorption plate 89 and the adsorption felt.

[0069] The air duct 72 utilizes a slanted opening and an internal filter plate 73 to guide airflow and perform initial dust filtration, reducing subsequent load. Subsequently, a multi-channel spatial structure consisting of a side flow plate 81, a pointed cone plate 82, and a central U-plate 83 diverts and rectifies the exhaust gas, optimizing the flow field uniformity and achieving inter-regional pressure balance through the guide holes 84, avoiding local eddies or dead zones. Crucially, the inclined plate 88 and the built-in cooling pipe 87 form a highly efficient heat transfer unit, actively reducing the exhaust gas temperature and causing tar vapor to condense into liquid. On this basis, the adsorption felt on the air guide plate 85 and the high specific surface area mesh structure of the adsorption plate 89 work together to efficiently capture condensed tar and fine particulate matter, achieving integrated flow guidance, cooling, condensation, and adsorption. This effectively prevents tar from entering the downstream dust removal system, significantly reducing the risk of bag clogging while improving tar removal rate.

[0070] Example 3: This example provides further technical solutions for the dust removal mechanism 5 and the agitation mechanism 6.

[0071] The dust removal mechanism 5 includes a mounting collar 56 and a sliding sleeve 54. The mounting collar 56 is installed inside the fastener plate 9. A support sleeve 55 is provided at the lower end of the mounting collar 56. A slip ring 511 is provided at the lower end of the support sleeve 55. The support sleeve 55 is slidably installed inside the sliding sleeve 54 through the slip ring 511. Several bottom holes 59 are opened at the lower end of the sliding sleeve 54, and a mounting ring 58 is provided at the lower end of the sliding sleeve 54.

[0072] The inner wall of the sliding sleeve 54 is provided with a tapered frame 513, and a pull rope 57 is provided at the middle of the upper end of the tapered frame 513. One end of the pull rope 57 extends into the interior of the drive member 3. A filter cylinder 514 is provided at the upper end of the tapered frame 513, and a corrugated filter sleeve 512 is fitted on the outer surface of the filter cylinder 514.

[0073] The outer surface of the mounting ring 58 is fitted with a support frame 52, and the bottom of the support frame 52 is provided with a striking cushion 53. The retaining ring 64 is fitted on the outer surface of the striking cushion 53, and the outer surface of the support frame 52 is fitted with a dust removal bag 51.

[0074] It is worth noting that when the exhaust gas enters the dust treatment chamber 1, it is first filtered through the dust collection bag 51 and then discharged from the top side of the dust treatment chamber 1. During the filtration process, the dust in the exhaust gas will gradually accumulate on the surface of the dust collection bag 51, affecting its air permeability. In order to prevent excessive dust accumulation, a strong airflow impact method is used to clean the dust on the surface of the dust collection bag 51.

[0075] However, over time, some dust may adhere firmly to the surface of the dust collector bag 51, making it impossible to effectively remove this stubborn dust using only strong airflow. In this case, the drive unit 3 is activated, using an internal drive device to retract the pull rope 57, thereby pulling the conical frame 513 upward. This action causes the filter cartridge 514 and the corrugated filter sleeve 512 to fold and retract, while simultaneously causing the sliding sleeve 54 to slide along the surface of the support sleeve 55, ensuring a smooth process without misalignment. The slip ring 511 further ensures the precise sliding of the sliding sleeve 54, preventing any possible deviation.

[0076] In addition, ventilation holes are provided on the surfaces of the support sleeve 55 and the sliding sleeve 54 to ensure that the exhaust gas can pass smoothly through the filter cartridge 514 and the corrugated filter sleeve 512 and maintain effective filtration efficiency. As the sliding sleeve 54 moves, the mounting ring 58 is also driven, thereby causing the support frame 52 to rise upward.

[0077] The agitation mechanism 6 includes a support frame 61, which is fixedly installed at the bottom of the inner cavity of the dust treatment chamber 1. The upper end of the support frame 61 is provided with a number of striking seats 63 arranged in a rectangular array, and the outer surface of the striking seats 63 is fitted with a spiral spring 62. One end of the spiral spring 62 is provided with a retaining ring 64.

[0078] When the support frame 52 is lifted upward, it simultaneously drives the impact cushion 53 to move upward. The impact cushion 53 is connected to the coil spring 62 through the retaining ring 64, and the coil spring 62 is stretched to store energy during the upward movement.

[0079] Subsequently, the drive unit 3 releases rapidly after completing the winding of the pull rope 57. At this time, the spiral spring 62 contracts rapidly due to elastic rebound, driving the impact cushion 53 to violently strike the striking seat 63 downward, generating an instantaneous impact oscillation force. This oscillation force is transmitted through the impact cushion 53 to the support frame 52, and then to the dust collection bag 51 covering its surface, causing it to vibrate at high frequency, thereby effectively peeling off and removing the dust adhering to the surface of the filter bag.

[0080] It is worth noting that the drive unit 3 can be activated in real time during the normal filtration of exhaust gas by the dust collector bag 51. Its operation does not interfere with the airflow channel, nor does it affect the continuous filtration of exhaust gas. By frequently performing the operation of winding and releasing the pull rope 57, the dust collector bag 51 can always maintain high air permeability and high-efficiency filtration.

[0081] The process involves using conventional pulsed airflow to initially clean the dust collector bag 51, removing most of the loose dust. For stubborn dust that is strongly adhered or caked, the linkage mechanism of the drive component 3 is activated. Through the winding and releasing pull rope 57, the coordinated movement of the conical frame 513, the corrugated filter sleeve 512, and the sliding sleeve 54 is triggered, causing the support frame 52 to lift as a whole. The spiral spring 62 stores energy and then rebounds instantaneously, driving the striking cushion 53 to violently impact the striking seat 63, generating a high-intensity impact vibration force. This causes the dust collector bag 51 to vibrate at high frequency, thereby thoroughly removing deep-seated dust. The entire cleaning process does not require machine shutdown and does not affect the normal filtration of exhaust gas. Furthermore, the vent design on the sliding sleeve 54 and the support sleeve 55 ensures that the airflow channel remains unobstructed throughout the cleaning process.

[0082] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waste gas filtration and treatment device for an incinerator, comprising a dust treatment chamber (1), characterized in that: The dust treatment chamber (1) is provided with an exhaust gas passage (2) on one side. An air inlet (4) is provided at the lower part of one side of the exhaust gas passage (2). An exhaust gas diversion mechanism (7) for guiding the flow of hot exhaust gas is provided at the lower part of the inner cavity of the exhaust gas passage (2) and above the air inlet (4). The waste gas diversion mechanism (7) is provided with a partition plate (10) on one side, and a number of tar treatment mechanisms (8) are installed on the upper end of the partition plate (10) at equal intervals along the horizontal direction, for adsorbing tar substances in the hot waste gas. The upper part of the inner cavity of the dust treatment chamber (1) is fixedly installed with a fastener plate (9), and the interior of the fastener plate (9) is provided with a number of dust removal mechanisms (5) arranged in a rectangular array. The upper end of the dust treatment chamber (1) is provided with a number of driving components (3) arranged in a rectangular array. The lower part of the inner cavity of the dust treatment chamber (1) is provided with an agitation mechanism (6) that works with the driving components (3) to clean the dust deposited on the surface of the dust removal mechanism (5).

2. The waste gas filtration and treatment device for an incinerator according to claim 1, characterized in that: The agitation mechanism (6) includes a support frame (61), which is fixedly installed at the bottom of the inner cavity of the dust treatment chamber (1). The upper end of the support frame (61) is provided with a number of striking seats (63) arranged in a rectangular array, and the outer surface of the striking seats (63) is fitted with a spiral spring (62), and one end of the spiral spring (62) is provided with a retaining ring (64).

3. The waste gas filtration and treatment device for an incinerator according to claim 2, characterized in that: The dust removal mechanism (5) includes an mounting collar (56) and a sliding sleeve (54). The mounting collar (56) is installed inside the fastener plate (9). A support sleeve (55) is provided at the lower end of the mounting collar (56). A slip ring (511) is provided at the lower end of the support sleeve (55). The support sleeve (55) is slidably installed inside the sliding sleeve (54) through the slip ring (511). A plurality of bottom holes (59) are opened at the lower end of the sliding sleeve (54), and an mounting ring (58) is provided at the lower end of the sliding sleeve (54).

4. The waste gas filtration and treatment device for an incinerator according to claim 3, characterized in that: The inner wall of the sliding sleeve (54) is provided with a conical frame (513), and a pull rope (57) is provided at the middle of the upper end of the conical frame (513). One end of the pull rope (57) extends into the interior of the drive member (3). A filter cylinder (514) is provided at the upper end of the conical frame (513), and a wave filter sleeve (512) is fitted on the outer surface of the filter cylinder (514).

5. The waste gas filtration and treatment device for an incinerator according to claim 4, characterized in that: The outer surface of the mounting ring (58) is fitted with a support frame (52), and the bottom of the support frame (52) is provided with a striking cushion (53). The retaining ring (64) is fitted on the outer surface of the striking cushion (53), and the outer surface of the support frame (52) is fitted with a dust removal bag (51).

6. The waste gas filtration and treatment device for an incinerator according to claim 1, characterized in that: The exhaust gas diversion mechanism (7) includes an outer frame (71), and the inner wall of the outer frame (71) is provided with a number of air guide pipes (72) arranged in a rectangular array. The lower ends of the air guide pipes (72) are all obliquely cut, and the inner walls of the air guide pipes (72) are all provided with filter plates (73).

7. The waste gas filtration and treatment device for an incinerator according to claim 1, characterized in that: The tar treatment mechanism (8) includes a conical plate (82) and two side flow plates (81). The two side flow plates (81) are located on both sides of the central U plate (83), and the cross section of the conical plate (82) is V-shaped. The side flow plates (81) and the conical plate (82) are both fixedly installed on the upper end of the partition plate (10).

8. The waste gas filtration and treatment device for an incinerator according to claim 7, characterized in that: An air guide plate (85) is provided between the pointed cone plate (82) and the side flow plate (81), and the air guide plate (85) is placed at an angle. A number of ventilation holes (86) are opened on the outer surface of the air guide plate (85). A central U plate (83) is provided on the inner wall of a number of air guide plates (85), and a number of flow guide holes (84) are opened on both sides of the central U plate (83).

9. A waste gas filtration and treatment device for an incinerator according to claim 8, characterized in that: The tar treatment mechanism (8) also includes a cooling pipe (87). The outer surface of the cooling pipe (87) is provided with several inclined plates (88), and the upper and lower sides of the inclined plates (88) are provided with inclined adsorption plates (89). The inclined plates (88) and adsorption plates (89) are both located inside the central U plate (83). Both ends of the cooling pipe (87) are connected to external cooling water pipes.

10. A method for filtering and treating exhaust gas from an incinerator, comprising using the exhaust gas filtering and treating device for an incinerator as described in any one of claims 1-9, characterized in that: Step 1: The exhaust gas enters the exhaust gas channel (2) through the air inlet (4). The heavy flue gas with higher density and lower temperature flows directly into the dust treatment chamber (1) along the bottom of the exhaust gas channel (2) under the action of gravity, while the light exhaust gas with higher temperature and lower density is guided by the exhaust gas diversion mechanism (7) and enters the tar treatment mechanism (8) upward. Step 2: The light waste gas entering the tar treatment mechanism (8) forms a directional flow path under the action of its internal guiding structure. The waste gas is cooled during the flow through the tar treatment mechanism (8), and the tar vapor contained therein is condensed and adsorbed on its inner surface. After the tar removal is completed, the purified waste gas is discharged into the dust treatment chamber (1). Step 3: The exhaust gas entering the dust treatment chamber (1) from the bottom of the tar treatment mechanism (8) and the exhaust gas channel (2) is filtered by the dust removal mechanism (5). When the dust accumulated on the surface of the dust removal mechanism (5) reaches the set level, the drive component (3) is activated and pulls the dust removal mechanism (5) upward to lift it. Then the drive component (3) is released, and the dust removal mechanism (5) falls back and hits the agitator (6) below. The vibration generated by this impact causes the dust attached to the surface of the dust removal mechanism (5) to fall off.

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