Recovery device and method for combined treatment of boiler solid waste polluted tail gas

Abstract

The invention belongs to the technical field of gas recovery, and particularly discloses a boiler solid waste pollution tail gas combined treatment recovery device which comprises an auxiliary pipe, an output pipe is arranged at the front end of the bottom of the auxiliary pipe, and an input pipe is arranged at the rear end of the bottom of the auxiliary pipe. A filtering cavity is formed in the auxiliary pipe and located between the input pipe and the output pipe, and the recycling method for boiler solid waste pollution tail gas combined treatment comprises the following steps that S1, an air cylinder is located at the initial position; s2, boiler tail gas enters the auxiliary pipe from the input pipe, and solid pollutants are intercepted on the side, close to the input pipe, of the filtering cavity; s3, the air cylinder is recycled, the movable plate is turned over towards the discharging cavity around the hinge, a slag discharging opening is formed, and meanwhile a cleaning channel is opened; and S4, cleaning liquid is sprayed, and cleaning waste liquid carrying impurities is discharged through a liquid discharging pipe below the discharging cavity. Solid pollutants in boiler tail gas can be efficiently intercepted, the filtering assembly can be automatically cleaned, and waste liquid and solid waste can be treated in a classified mode.

Description

Technical Field

[0001] The invention belongs to the technical field of gas recovery, and specifically discloses a recovery device and method for combined treatment of boiler solid waste-contaminated tail gas. Background Art

[0002] During the combustion process, boilers generate large amounts of flue gas and particulate matter, including coal ash and unburned carbon particles, which are emitted along with the flue gas. Boiler solid waste and exhaust gas treatment is a comprehensive technical solution that uses an integrated system to simultaneously treat the solid waste generated by boiler combustion, achieving waste reduction, resource utilization, and compliance with exhaust emission standards.

[0003] In the existing recovery equipment for combined treatment of boiler solid waste-contaminated exhaust gas, traditional filter components are mostly static structures that rely on manual disassembly and cleaning on a regular basis. The maintenance cost is high and the efficiency is low, especially under high dust conditions, which makes it difficult to operate stably for a long time. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to propose a recovery device and method for the combined treatment of boiler solid waste-contaminated exhaust gas, so as to solve the problem that traditional filter components in the prior art are mostly static structures, rely on manual regular disassembly and cleaning, have high maintenance costs and low efficiency, and are difficult to operate stably for a long time, especially under high dust conditions.

[0005] In order to achieve the above purpose, the present invention provides a recovery device for combined treatment of boiler solid waste polluted tail gas, including an auxiliary pipe, an output pipe is provided at the front end of the bottom of the auxiliary pipe, an input pipe is provided at the rear end of the bottom of the auxiliary pipe, a filter chamber is provided inside the auxiliary pipe and between the input pipe and the output pipe, a discharge chamber is provided inside the auxiliary pipe and behind the input pipe, a first blocking mechanism is provided between the filter chamber and the discharge chamber, the first blocking mechanism includes a positioning plate, a movable plate is installed below the positioning plate through a hinge, a filter assembly is provided inside the auxiliary pipe, and the top of the auxiliary pipe and between the output pipe and the discharge pipe are provided. A water spray assembly is provided directly above the outlet pipe, and a second blocking mechanism is provided inside the auxiliary pipe. The second blocking mechanism includes an arc-shaped plate, which is rotatably mounted on the inner wall of the auxiliary pipe. The arc-shaped plate is used to block the water spray assembly. A driving mechanism is provided below the auxiliary pipe, and a first matching block and a second matching block are respectively installed inside the input pipe and the output pipe. The driving mechanism can drive the first matching block and the second matching block to move, and the movement of the first matching block and the second matching block can respectively drive the movement of the first blocking mechanism and the second blocking mechanism. A drain pipe is provided below the discharge chamber.

[0006] In the above technical solution, preferably, the positioning plate and the movable plate are combined into a circle, and the positioning plate and the movable plate can divide the filtering cavity and the blanking cavity. A vertical rod is fixedly installed at the top of the first fitting block, and a first connecting rod is connected between the top of the vertical rod and the surface of the movable plate inside the filtering cavity through a rotating shaft.

[0007] In the above technical solution, preferably, the arc-shaped plate is located between the water spraying assembly and the output pipe. An arc-shaped slider is arranged at one end of the arc-shaped plate close to the inner wall of the auxiliary pipe. An arc-shaped sliding groove is formed in the inner wall of the auxiliary pipe, and the arc-shaped slider is slidably installed in the arc-shaped sliding groove. An arc-shaped spring is arranged at the top of the arc-shaped sliding groove, and the bottom end of the arc-shaped spring is connected to the arc-shaped slider. A through groove is formed in the surface of the arc-shaped plate close to the top end.

[0008] In the above technical solution, preferably, a second connecting rod is installed on the surface of the output pipe close to the top end through a rotating shaft. A clamping groove is formed in the surface of the second connecting rod. A convex block is arranged at the bottom end of the arc-shaped plate, and the surface of the convex block is movably clamped in the clamping groove. An extrusion groove is formed at one end of the second fitting block close to the second connecting rod, and the extrusion groove corresponds to the second connecting rod.

[0009] In the above technical solution, preferably, three pipe grooves are uniformly formed at the top end of the auxiliary pipe, and the pipe grooves are arranged in an inclined shape. The water spraying assembly includes three water spraying heads, the water spraying heads are inserted into the pipe grooves, a water pipe is connected to the top of the water spraying heads, and the water pipe is connected to a water pump outside the auxiliary pipe.

[0010] In the above technical solution, preferably, a cross bar is installed between the input pipe and the output pipe through bolts. The driving mechanism includes a cylinder, the cylinder is installed above the cross bar, a connecting rod is movably arranged below the cross bar, push columns are installed at both ends of the connecting rod, and the top ends of the two push columns respectively penetrate through the input pipe and the output pipe to connect the first fitting block and the second fitting block. The output end of the cylinder is connected to the connecting rod.

[0011] In the above technical solution, preferably, the filtering assembly is integrally installed at the front end of the filtering cavity. The filtering assembly includes a first filtering cylinder and a second filtering cylinder. The end of the first filtering cylinder close to the output pipe is connected to the second filtering cylinder. The outer surface of the first filtering cylinder is attached to the inner wall of the auxiliary pipe. The diameter of the second filtering cylinder is smaller than that of the first filtering cylinder, and the second filtering cylinder is directly above the output pipe.

[0012] In the above technical solution, preferably, a second stepping motor is provided at the front end of the auxiliary pipe, the output end of the second stepping motor is connected to the second filter cartridge, a first stepping motor is provided behind the auxiliary pipe, the output end of the first stepping motor is connected to a smooth rod, the smooth rod is rotatably installed inside the auxiliary pipe, and a first scraping plate and a second scraping plate are provided on the surface of the smooth rod. The first scraping plate is fitted and installed inside the first filter cartridge, and the second scraping plate is fitted and installed inside the second filter cartridge.

[0013] A recovery method for combined treatment of boiler solid waste polluted tail gas includes the following steps: S1. The cylinder is in the initial position, the first fitting block and the second fitting block are statically placed at the bottoms of the input pipe and the output pipe, the positioning plate and the movable plate are closed, isolating the filtration chamber and the blanking chamber. The arc-shaped plate is pressed against the inner wall of the auxiliary pipe by the spring force, blocking the water spraying assembly and the output pipe; S2. The boiler tail gas enters the auxiliary pipe from the input pipe and enters the filtration chamber. The tail gas first passes through the first filter cartridge and then flows into the second filter cartridge to remove particles. The clean tail gas is discharged through the output pipe, and the solid pollutants are intercepted on the side of the filtration chamber close to the input pipe; S3. The cylinder retracts, driving the connecting rod to move upward, synchronously lifting the first fitting block and the second fitting block through the pushing column. The first fitting block, through the vertical standing rod and the first connecting rod, pushes the movable plate to turn downward into the blanking chamber around the hinge, separating from the positioning plate to form a slag discharge opening. At the same time, the second fitting block pushes the extrusion groove to contact the second connecting rod, and the second connecting rod rotates, driving the convex block at the bottom end of the arc-shaped plate to move through the clamping groove, compressing the spring and rotating the arc-shaped plate. The through groove of the arc-shaped plate is aligned with the water spraying head, opening the cleaning channel, and the first fitting block and the second fitting block will block the tops of the input pipe and the output pipe; S4. The water pump sprays the cleaning liquid into the auxiliary pipe through the inclined pipe groove, flushing the filtration assembly and the inner wall from multiple angles. The cleaning waste liquid carries impurities and is discharged through the drain pipe below the blanking chamber.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The filtration assembly adopts the combination of the first filter cartridge and the second filter cartridge, which can filter and remove particles more precisely, ensure thorough purification of the tail gas, and the clean tail gas is discharged through the output pipe; The first sealing mechanism completely isolates the filtration chamber and the blanking chamber during filtration, ensuring that the tail gas is only purified through the filter cartridge. During cleaning, the movable plate turns over to open the channel, allowing the intercepted solid waste to fall into the blanking chamber; The second sealing mechanism blocks the water spraying assembly and the output pipe during filtration, preventing water from entering the exhaust pipe. During cleaning, the arc-shaped plate rotates to align the through groove with the water spraying head, opening the cleaning channel, and the water spraying assembly can convey the cleaning liquid inside the auxiliary pipe; Efficient interception of solid pollutants in boiler tail gas, automatic cleaning of the filter component, and classified treatment of waste liquid and solid waste, with advantages such as high purification efficiency, convenient operation, low maintenance cost, and strong environmental protection, applicable to pollution control and resource recovery in the field of industrial boiler tail gas treatment; The cylinder synchronously drives the first mating block and the second mating block through the connecting rod and the pushing column, realizing the linkage opening and closing of the blocking mechanism, without the need for an independent control component, reducing mechanical complexity and energy consumption. Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the auxiliary pipe of the present invention; Figure 3 It is a schematic diagram of the structure of the present invention from another perspective; Figure 4 It is a front view sectional view of the auxiliary pipe, input pipe, and output pipe of the present invention; Figure 5 It is a side view sectional view of the auxiliary pipe of the present invention; Figure 6 For the present invention Figure 2 The enlarged view at A in; Figure 7 For the present invention Figure 2 The enlarged view at A in; Figure 8 For the present invention Figure 5 The enlarged view at C in.

[0016] In the figure: 1. Auxiliary pipe; 2. Input pipe; 3. Output pipe; 4. First blocking mechanism; 5. Second blocking mechanism; 6. Driving mechanism; 7. First filter cylinder; 8. Second filter cylinder; 9. Cylinder; 10. Cross bar; 11. Connecting rod; 12. Pushing column; 13. First mating block; 14. Second mating block; 15. Positioning plate; 16. Movable plate; 17. First connecting rod; 18. Vertical rod; 19. Arc plate; 20. Through groove; 21. Arc slider; 22. Arc chute; 23. Convex block; 24. Second connecting rod; 25. Clamping groove; 26. Extrusion groove; 27. Pipe groove; 28. Sprinkler head; 29. Drain pipe; 30. First stepping motor; 31. First scraper; 32. Second scraper; 33. Second stepping motor; 34. Arc spring. Detailed Embodiments

[0017] In order to be able to more clearly understand the above-mentioned objects, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0018] In the following description, many specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention may be practiced in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0019] As Figures 1 - 8 shown, a recovery device for combined treatment of boiler solid waste polluted tail gas includes an auxiliary pipe 1, characterized in that an output pipe 3 is arranged at the front end of the bottom of the auxiliary pipe 1, an input pipe 2 is arranged at the rear end of the bottom of the auxiliary pipe 1, a filtering cavity is arranged inside the auxiliary pipe 1 between the input pipe 2 and the output pipe 3, a blanking cavity is arranged inside the auxiliary pipe 1 behind the input pipe 2, a first blocking mechanism 4 is arranged between the filtering cavity and the blanking cavity, the first blocking mechanism 4 includes a positioning plate 15, a movable plate 16 is installed below the positioning plate 15 through a hinge, a filtering component is arranged inside the auxiliary pipe 1, a water spraying component is arranged above the output pipe 3 at the top of the auxiliary pipe 1, a second blocking mechanism 5 is arranged inside the auxiliary pipe 1, the second blocking mechanism 5 includes an arc-shaped plate 19, the arc-shaped plate 19 is rotatably installed on the inner wall of the auxiliary pipe 1, and the arc-shaped plate 19 is used for blocking the water spraying component, a driving mechanism 6 is arranged below the auxiliary pipe 1, a first matching block 13 and a second matching block 14 are respectively installed inside the input pipe 2 and the output pipe 3, the driving mechanism 6 can drive the first matching block 13 and the second matching block 14 to move, the activities of the first matching block 13 and the second matching block 14 can respectively drive the first blocking mechanism 4 and the second blocking mechanism 5 to move, a drain pipe 29 is arranged below the blanking cavity, and the device can efficiently intercept solid pollutants in the boiler tail gas, automatically clean the filtering component and classify and treat waste liquid and solid waste, and has the advantages of high purification efficiency, convenient operation, low maintenance cost and strong environmental protection, and is applicable to pollution control and resource recovery in the field of industrial boiler tail gas treatment.

[0020] The positioning plate 15 and the movable plate 16 are combined into a circle, and the positioning plate 15 and the movable plate 16 can divide the filtering cavity and the blanking cavity. The positioning plate 15 and the movable plate 16 are combined into a circle and closely fit on the inner wall of the auxiliary pipe 1 to form a complete circular partition, completely dividing the filtering cavity and the blanking cavity. At this time, the tail gas introduced by the input pipe 2 is filtered by the filtering component, and the solid pollutants are intercepted on the side of the filtering cavity close to the input pipe 2, and the clean tail gas is discharged through the output pipe 3. A vertical rod 18 is fixedly installed at the top of the first matching block 13, and a first connecting rod 17 is connected between the top of the vertical rod 18 and the surface of the movable plate 16 inside the filtering cavity through a rotating shaft. When the first matching block 13 moves upward, the vertical rod 18 at the top of the first matching block 13 moves synchronously with it, and the first connecting rod 17 connected through the rotating shaft pushes the movable plate 16 to rotate around the hinge, and the movable plate 16 flips downward toward the blanking cavity with the hinge as the fulcrum and separates from the positioning plate 15 to form an opening. At this time, the solid waste intercepted inside the filtering cavity can be transported into the blanking cavity.

[0021] The arc-shaped plate 19 is located between the water spraying assembly and the output pipe 3. An arc-shaped sliding block 21 is provided at one end of the arc-shaped plate 19 close to the inner wall of the auxiliary pipe 1. An arc-shaped sliding groove 22 is formed in the inner wall of the auxiliary pipe 1. The arc-shaped sliding block 21 is slidably installed in the arc-shaped sliding groove 22. An arc-shaped spring 34 is provided at the top of the arc-shaped sliding groove 22. The bottom end of the arc-shaped spring 34 is connected to the arc-shaped sliding block 21. A through groove 20 is formed in the surface of the arc-shaped plate 19 close to the top end. Under the elastic force of the arc-shaped spring 34, the arc-shaped plate 19 is attached to the inner wall of the auxiliary pipe 1 through the arc-shaped sliding block 21. The through groove 20 is located at the top of the arc-shaped plate 19 and is misaligned with the water spraying assembly. The top of the arc-shaped plate 19 completely blocks the space between the water spraying assembly and the output pipe 3, preventing water flow from directly entering the output pipe 3 and also avoiding the exhaust gas from being sent to the water spraying assembly.

[0022] A second connecting rod 24 is installed on the surface of the output pipe 3 close to the top end through a rotating shaft. A clamping groove 25 is formed in the surface of the second connecting rod 24. A convex block 23 is provided at the bottom end of the arc-shaped plate 19. The surface of the convex block 23 is movably clamped in the clamping groove 25. An extrusion groove 26 is formed at one end of the second matching block 14 close to the second connecting rod 24. The extrusion groove 26 corresponds to the second connecting rod 24. When the second matching block 14 does not rise, the extrusion groove 26 is separated from the second connecting rod 24. The second connecting rod 24 is in an inclined state under the action of the gravity and spring force of the arc-shaped plate 19. The convex block 23 at the bottom end of the arc-shaped plate 19 is clamped at the bottom of the clamping groove 25 of the second connecting rod 24, and the arc-shaped plate 19 remains in a closed state. The top of the arc-shaped plate 19 completely blocks the space between the water spraying assembly and the output pipe 3. When the second matching block 14 moves towards the second connecting rod 24, the extrusion groove 26 contacts the second connecting rod 24 and applies a thrust force, forcing the second connecting rod 24 to rotate around the rotating shaft at the top end of the output pipe 3. When the second connecting rod 24 rotates, the inner wall of the clamping groove 25 pushes the convex block 23 to move. Since the convex block 23 is fixed at the bottom end of the arc-shaped plate 19, the arc-shaped plate 19 will compress the arc-shaped spring 34. As the rotation angle of the second connecting rod 24 increases, the arc-shaped plate 19 gradually moves away from the output pipe 3, and the through groove 20 is aligned with the water spraying assembly, and the water spraying assembly can convey the cleaning liquid into the auxiliary pipe 1.

[0023] Three pipeline grooves 27 are evenly formed at the top end of the auxiliary pipe 1. The pipeline grooves 27 are arranged in an inclined shape. The water spraying assembly includes three water spray heads 28. The water spray heads 28 are inserted into the pipeline grooves 27. A water pipe is connected to the top of the water spray head 28. The water pipe is connected to a water pump outside the auxiliary pipe 1. The water pump supplies water to the water spray head 28 through the water pipe. After the water flows through the inclined pipeline grooves 27, it is sprayed from the water spray head 28 into the auxiliary pipe 1. Since the pipeline grooves 27 are inclined, the spraying direction forms a certain angle, and the cleaning liquid can be sprayed into the auxiliary pipe 1, improving the cleaning efficiency of pollutants.

[0024] A cross bar 10 is installed between the input pipe 2 and the output pipe 3 by bolts. The driving mechanism 6 includes a cylinder 9. The cylinder 9 is installed above the cross bar 10. A connecting rod 11 is movably arranged below the cross bar 10. Push columns 12 are installed at both ends of the connecting rod 11. The tops of the two push columns 12 respectively penetrate through the input pipe 2 and the output pipe 3 to connect a first fitting block 13 and a second fitting block 14. The output end of the cylinder 9 is connected to the connecting rod 11. The cylinder 9 serves as a power source and can drive the connecting rod 11 to move up and down. The push columns 12 at both ends of the connecting rod 11 pass through the input pipe 2 and the output pipe 3 and are fixedly connected to the first fitting block 13 and the second fitting block 14 respectively, thereby transmitting the linear motion of the cylinder 9 to the first fitting block 13 and the second fitting block 14.

[0025] The whole filtering component is installed at the front end of the filtering cavity. The filtering component includes a first filtering cylinder 7 and a second filtering cylinder 8. The end of the first filtering cylinder 7 close to the output pipe 3 is connected to the second filtering cylinder 8. The outer surface of the first filtering cylinder 7 is close to the inner wall of the auxiliary pipe 1. The diameter of the second filtering cylinder 8 is smaller than that of the first filtering cylinder 7. The second filtering cylinder 8 is directly above the output pipe 3. The gas to be filtered is input from the input pipe 2 into the auxiliary pipe 1. After entering the filtering cavity, it first contacts the first filtering cylinder 7. Larger impurities are intercepted outside the first filtering cylinder 7. Then the gas flows into the second filtering cylinder 8 from the end of the first filtering cylinder 7. Finally, the clean tail gas is discharged through the output pipe 3.

[0026] A second stepping motor 33 is arranged at the front end of the auxiliary pipe 1. The output end of the second stepping motor 33 is connected to the second filtering cylinder 8. A first stepping motor 30 is arranged behind the auxiliary pipe 1. The output end of the first stepping motor 30 is connected to a smooth rod. The smooth rod is rotatably installed inside the auxiliary pipe 1. First scraping plates 31 and second scraping plates 32 are arranged on the surface of the smooth rod. The first scraping plates 31 are fitted and installed inside the first filtering cylinder 7. The second scraping plates 32 are fitted and installed inside the second filtering cylinder 8. After the first stepping motor 30 is started, the first scraping plates 31 and the second scraping plates 32 are driven to rotate synchronously through the smooth rod. The first scraping plates 31 are attached to the inner wall of the first filtering cylinder 7 and scrape off the particulate impurities intercepted inside the first filtering cylinder 7 during rotation to prevent the impurities from accumulating and blocking the filter holes. The second scraping plates 32 extend into the second filtering cylinder 8 and rotate closely against its inner wall to remove the particulate impurities attached to the inner side of the filter cylinder and ensure the smoothness of the fine filtering channel. The second stepping motor 33 independently drives the second filtering cylinder 8 to rotate, which can further assist in separating impurities by centrifugal force or form a relative motion with the second scraping plates 32 to enhance the dirt cleaning effect.

[0027] A recovery method for combined treatment of boiler solid waste polluted tail gas includes the following steps: S1. The cylinder 9 is in the initial position. The first fitting block 13 and the second fitting block 14 are statically placed at the bottom of the input pipe 2 and the output pipe 3. The positioning plate 15 is closed with the movable plate 16 to isolate the filtration chamber from the blanking chamber. The arc-shaped plate 19 is tightly attached to the inner wall of the auxiliary pipe 1 under the elastic force of the spring, blocking the water spraying assembly and the output pipe 3; S2. The boiler tail gas enters the auxiliary pipe 1 from the input pipe 2 and enters the filtration chamber. The tail gas first passes through the first filter cartridge 7 and then flows into the second filter cartridge 8 to remove particles. The clean tail gas is discharged through the output pipe 3, and the solid pollutants are intercepted on the side of the filtration chamber close to the input pipe 2; S3. The cylinder 9 retracts, driving the connecting rod 11 to move upward. The first fitting block 13 and the second fitting block 14 are synchronously lifted through the push column 12. The first fitting block 13, through the vertical rod 18 and the first connecting rod 17, pushes the movable plate 16 to flip downward into the blanking chamber, separating from the positioning plate 15 to form a slag discharge opening. At the same time, the second fitting block 14 pushes the extrusion groove 26 to contact the second connecting rod 24. The second connecting rod 24 rotates, driving the convex block 23 at the bottom end of the arc-shaped plate 19 to move through the clamping groove 25, compressing the spring and rotating the arc-shaped plate 19. The through groove 20 of the arc-shaped plate 19 is aligned with the water spraying head 28 to open the cleaning channel, and the first fitting block 13 and the second fitting block 14 will block the tops of the input pipe 2 and the output pipe 3; S4. The water pump sprays the cleaning liquid into the auxiliary pipe 1 through the inclined pipe groove 27 to wash the filtration assembly and the inner wall from multiple angles. The cleaning waste liquid carries impurities and is discharged through the drain pipe 29 below the blanking chamber.

[0028] Working principle: First, the cylinder 9 is in the initial position, the connecting rod 11 and the pushing column 12 are not actuated, the first mating block 13 and the second mating block 14 are stationary, the first mating block 13 and the second mating block 14 are respectively at the bottom of the input pipe 2 and the output pipe 3, the positioning plate 15 and the movable plate 16 are combined into a circle, closely fitting the inner wall of the auxiliary pipe 1, completely isolating the filtration chamber from the blanking chamber. The tail gas introduced into the input pipe 2 is filtered by the first filter cartridge 7 and the second filter cartridge 8, and the solid pollutants are intercepted on the side of the filtration chamber close to the input pipe 2. The clean tail gas is discharged through the output pipe 3. The arc-shaped plate 19 is acted on by the elastic force of the arc-shaped spring 34, and closely adheres to the inner wall of the auxiliary pipe 1 through the arc-shaped slider 21. The through groove 20 is misaligned with the water spraying assembly, and the top of the arc-shaped plate 19 blocks the channel between the water spraying assembly and the output pipe 3 to prevent water from flowing into the output pipe 3. Then, the cylinder 9 contracts, driving the connecting rod 11 to move upward, driving the two ends of the pushing column 12 to rise synchronously, and pushing the movable plate 16 to rotate downward around the hinge towards the blanking chamber through the vertical stand rod 18 and the first connecting rod 17, separating from the positioning plate 15 and opening the channel between the filtration chamber and the blanking chamber. At the same time, the second mating block 14 moves towards the second connecting rod 24, the extrusion groove 26 contacts the second connecting rod 24 and applies a thrust, and the inner wall of the clamping groove 25 pushes the convex block 23 at the bottom end of the arc-shaped plate 19 to move, compressing the arc-shaped spring 34. The arc-shaped plate 19 rotates upward around the arc-shaped chute 22, and the through groove 20 is aligned with the water spraying assembly, opening the cleaning channel. The first mating block 13 and the second mating block 14 will block the tops of the input pipe 2 and the output pipe 3. The water pump supplies water to the water spraying head 28 through the water pipe, and the cleaning liquid is sprayed into the interior of the auxiliary pipe 1 at a certain angle through the inclined pipe groove 27 to wash the pollutants remaining on the inner wall and the filtration components. While cleaning, after the first stepping motor 30 is started, it drives the first scraping plate 31 and the second scraping plate 32 to rotate synchronously through the optical rod. The first scraping plate 31 fits the inner wall of the first filter cartridge 7 and scrapes off the particulate impurities intercepted inside the first filter cartridge 7 during rotation to prevent impurity accumulation from blocking the filter holes. The second scraping plate 32 extends into the second filter cartridge 8 and rotates closely against its inner wall to remove the particulate impurities attached to the inner side of the filter cartridge, ensuring the smoothness of the fine filtration channel. The second stepping motor 33 independently drives the second filter cartridge 8 to rotate, which can further assist in separating impurities through centrifugal force or form a relative movement with the second scraping plate 32 to enhance the cleaning effect. Finally, the cleaning waste liquid carrying impurities is discharged through the drain pipe 29.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the description is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A recovery device for combined treatment of boiler solid waste polluted tail gas, including an auxiliary pipe (1), characterized in that, An output pipe (3) is provided at the front end of the bottom of the auxiliary pipe (1), and an input pipe (2) is provided at the rear end of the bottom of the auxiliary pipe (1). A filtering cavity is arranged inside the auxiliary pipe (1) between the input pipe (2) and the output pipe (3). A feeding cavity is arranged inside the auxiliary pipe (1) behind the input pipe (2). A first blocking mechanism (4) is arranged between the filtering cavity and the feeding cavity. The first blocking mechanism (4) includes a positioning plate (15). A movable plate (16) is installed below the positioning plate (15) through a hinge. A filtering component is arranged inside the auxiliary pipe (1). A water spraying component is arranged above the output pipe (3) at the top of the auxiliary pipe (1). A second blocking mechanism (5) is arranged inside the auxiliary pipe (1). The second blocking mechanism (5) includes an arc-shaped plate (19). The arc-shaped plate (19) is rotatably installed on the inner wall of the auxiliary pipe (1). The arc-shaped plate (19) is used to block the water spraying component. A driving mechanism (6) is arranged below the auxiliary pipe (1). First fitting blocks (13) and second fitting blocks (14) are respectively installed inside the input pipe (2) and the output pipe (3). The driving mechanism (6) can drive the first fitting block (13) and the second fitting block (14) to move. The movement of the first fitting block (13) and the second fitting block (14) can respectively drive the first blocking mechanism (4) and the second blocking mechanism (5) to move. A liquid discharge pipe (29) is arranged below the feeding cavity.

2. The recovery device for combined treatment of boiler solid waste pollution exhaust gas according to claim 1, characterized in that, The positioning plate (15) and the movable plate (16) are combined into a circle, and the positioning plate (15) and the movable plate (16) can divide the filtering cavity and the feeding cavity. A vertical rod (18) is fixedly installed at the top of the first fitting block (13). A first connecting rod (17) is connected between the top of the vertical rod (18) and the surface of the movable plate (16) inside the filtering cavity through a rotating shaft.

3. The recovery device for combined treatment of boiler solid waste polluted tail gas according to claim 1, characterized in that, The arc-shaped plate (19) is located between the water spraying component and the output pipe (3). An arc-shaped sliding block (21) is arranged at one end of the arc-shaped plate (19) close to the inner wall of the auxiliary pipe (1). An arc-shaped sliding groove (22) is formed on the inner wall of the auxiliary pipe (1). The arc-shaped sliding block (21) is slidably installed in the arc-shaped sliding groove (22). An arc-shaped spring (34) is arranged at the top of the arc-shaped sliding groove (22). The bottom end of the arc-shaped spring (34) is connected to the arc-shaped sliding block (21). A through groove (20) is formed on the surface of the arc-shaped plate (19) close to the top end.

4. The recovery device for combined treatment of boiler solid waste pollution exhaust gas according to claim 3, characterized in that, The surface of the output pipe (3) near the top is provided with a second connecting rod (24) through a rotating shaft. A clamping groove (25) is formed on the surface of the second connecting rod (24). A convex block (23) is arranged at the bottom end of the arc-shaped plate (19). The surface of the convex block (23) is movably clamped in the clamping groove (25). An extrusion groove (26) is formed at one end of the second fitting block (14) close to the second connecting rod (24). The extrusion groove (26) corresponds to the second connecting rod (24).

5. A recovery device for combined treatment of boiler solid waste pollution exhaust gas according to claim 1, characterized in that, Three pipeline grooves (27) are evenly formed at the top end of the auxiliary pipe (1). The pipeline grooves (27) are arranged in an inclined shape. The water spraying assembly includes three water spray heads (28). The water spray heads (28) are inserted into the pipeline grooves (27). A water pipe is connected to the top of the water spray head (28). The water pipe is connected to a water pump outside the auxiliary pipe (1).

6. The recovery device for combined treatment of boiler solid waste pollution exhaust gas according to claim 1, characterized in that, A cross bar (10) is installed between the input pipe (2) and the output pipe (3) through bolts. The driving mechanism (6) includes a cylinder (9). The cylinder (9) is installed above the cross bar (10). A connecting rod (11) is movably arranged below the cross bar (10). Push columns (12) are installed at both ends of the connecting rod (11). The top ends of the two push columns (12) respectively penetrate through the input pipe (2) and the output pipe (3) to connect the first fitting block (13) and the second fitting block (14). The output end of the cylinder (9) is connected to the connecting rod (11).

7. The recovery device for combined treatment of boiler solid waste pollution exhaust gas according to claim 1, characterized in that, The whole filtering assembly is installed at the front end of the filtering cavity. The filtering assembly includes a first filtering cylinder (7) and a second filtering cylinder (8). The end of the first filtering cylinder (7) close to the output pipe (3) is connected to the second filtering cylinder (8). The outer surface of the first filtering cylinder (7) is attached to the inner wall of the auxiliary pipe (1). The diameter of the second filtering cylinder (8) is smaller than that of the first filtering cylinder (7). The second filtering cylinder (8) is located directly above the output pipe (3).

8. A recovery device for combined treatment of boiler solid waste pollution tail gas according to claim 7, characterized in that, A second stepping motor (33) is arranged at the front end of the auxiliary pipe (1). The output end of the second stepping motor (33) is connected to the second filtering cylinder (8). A first stepping motor (30) is arranged at the rear of the auxiliary pipe (1). The output end of the first stepping motor (30) is connected to a smooth rod. The smooth rod is rotatably installed inside the auxiliary pipe (1). A first scraping plate (31) and a second scraping plate (32) are arranged on the surface of the smooth rod. The first scraping plate (31) is cooperatively installed inside the first filtering cylinder (7). The second scraping plate (32) is cooperatively installed inside the second filtering cylinder (8).

9. A recovery device for combined treatment of boiler solid waste polluted tail gas, which is applied to the recovery method for combined treatment of boiler solid waste polluted tail gas described in any one of claims 1-8, is characterized in that, Including the following steps: S1. The cylinder 9 is in the initial position. The first fitting block 13 and the second fitting block 14 are statically placed at the bottoms of the input pipe 2 and the output pipe 3. The positioning plate 15 and the movable plate 16 are closed to isolate the filtering cavity from the blanking cavity. The arc-shaped plate 19 is tightly attached to the inner wall of the auxiliary pipe 1 by the spring force to block the water spraying assembly and the output pipe 3; S2. The boiler tail gas enters the auxiliary pipe 1 from the input pipe 2 and enters the filtration chamber. The tail gas first passes through the first filter cartridge 7 and then flows into the second filter cartridge 8 to remove particles. The clean tail gas is discharged through the output pipe 3, and the solid pollutants are intercepted on the side of the filtration chamber close to the input pipe 2; S3. The cylinder 9 retracts, driving the connecting rod 11 to move upward. The first matching block 13 and the second matching block 14 are synchronously lifted through the push column 12. The first matching block 13, through the vertical rod 18 and the first connecting rod 17, pushes the movable plate 16 to flip downward into the blanking chamber around the hinge, separating from the positioning plate 15 to form a slag discharge opening. At the same time, the second matching block 14 pushes the extrusion groove 26 to contact the second connecting rod 24. The second connecting rod 24 rotates, driving the convex block 23 at the bottom end of the arc-shaped plate 19 to move through the clamping groove 25, compressing the spring and rotating the arc-shaped plate 19. The through groove 20 of the arc-shaped plate 19 is aligned with the water spray head 28 to open the cleaning channel, and the first matching block 13 and the second matching block 14 will block the tops of the input pipe 2 and the output pipe 3; S4. The water pump sprays the cleaning liquid into the auxiliary pipe 1 through the inclined pipe groove 27 to wash the filtration component and the inner wall from multiple angles. The cleaning waste liquid carries impurities and is discharged through the drain pipe 29 below the blanking chamber.

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