High-temperature dust removal device for wall-flow honeycomb ceramics and dust removal method of high-temperature dust removal device

Abstract

The invention belongs to the technical field of high-temperature dust removal, and discloses a wall-flow type honeycomb ceramic high-temperature dust removal device which comprises a main body shell, a pair of wall-flow type honeycomb ceramic filter groups are fixedly connected in the main body shell, and the wall-flow type honeycomb ceramic high-temperature dust removal device further comprises an ash removal component; the invention also provides a high-temperature dust removal method of the wall-flow honeycomb ceramic, which comprises the following steps: S1, quickly cooling the exported high-temperature flue gas, reducing the temperature to below 600 DEG C, finishing acid-base treatment on the high-temperature flue gas, and then conveying the high-temperature flue gas to the main body shell through the main gas conveying pipeline; according to the invention, through the cooperation of structures such as the ash removal component and the cleaning component, the wall-flow honeycomb ceramic filter group can be cleaned conveniently, dust is collected, gas is sucked from the leading-out component through the booster fan and pressurized, and dust particles filtered and remained in the wall-flow honeycomb ceramic filter group are blown out from the bottom, so that the dust removal effect is improved. Therefore, the wall flow type honeycomb ceramic filter group is cleaned.

Description

Technical Field

[0001] This invention belongs to the field of high-temperature dust removal technology, specifically a high-temperature dust removal device and method for wall-flow honeycomb ceramic. Background Technology

[0002] Wall-flow honeycomb ceramics, as a highly efficient high-temperature gas purification material, have significant application value in the field of industrial dust removal. Made of porous ceramic materials, wall-flow honeycomb ceramics have a parallel channel structure. Adjacent channels are alternately blocked at the inlet and outlet ends, forcing airflow through the porous ceramic wall. Its capture efficiency for PM2.5 and smaller particles can reach over 99%. The honeycomb structure design makes the airflow resistance significantly lower than that of traditional filter materials. The ceramic material has good resistance to acidic / alkaline gases, and the high-temperature sintered structure is not prone to aging, with a service life of 3 to 5 years.

[0003] Traditional wall-flow honeycomb ceramic filters are typically used unidirectionally in high-temperature dust removal until their filtration efficiency decreases, at which point they are replaced. This method results in frequent replacements of multiple sets of wall-flow honeycomb ceramic filters for cleaning, leading to low utilization efficiency and impacting work efficiency. Therefore, this paper proposes a high-temperature dust removal device and method using wall-flow honeycomb ceramic filters. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a high-temperature dust removal device and method for wall-flow honeycomb ceramics.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-temperature dust removal device for wall-flow honeycomb ceramics, comprising a main body shell, wherein a pair of wall-flow honeycomb ceramic filter groups are fixedly connected inside the main body shell, and further comprising: The dust removal component is installed inside the main housing on the lower side of the wall-flow honeycomb ceramic filter assembly and is used to clean the dust discharged from the wall-flow honeycomb ceramic filter assembly. The cleaning component, installed at the top of the main housing, is used for backwashing and cleaning the wall-flow honeycomb ceramic filter assembly. The cleaning component includes a pair of pressurizing fans fixedly connected to the top of the main body shell. The output end of the pressurizing fan penetrates the main body shell and extends into the interior of the main body shell, and an air supply hose is fixedly installed at the output end of the pressurizing fan.

[0006] Preferably, an air supply component is installed on the lower side of the main body shell, an outlet component is installed on the top of the main body shell, a partition plate is provided inside the main body shell to divide the interior of the main body shell into two cavities, the bottom of the partition plate is located below the outlet component, and a pair of wall-flow honeycomb ceramic filter groups are distributed in a mirror image on both sides of the partition plate inside the main body shell.

[0007] Preferably, the input end of the pressurizing fan is connected to the output component, and the input ends of the pair of pressurizing fans respectively penetrate into a cavity inside the main body shell.

[0008] Preferably, the cleaning component further includes a pair of sliding brackets slidably connected inside the main body shell. An air guide pipe is fixedly connected to the bottom of the sliding brackets. Multiple nozzles corresponding to the number of honeycomb ceramic blocks inside the wall-flow honeycomb ceramic filter assembly are provided at the bottom of the air guide pipe. The output end of the air delivery hose penetrates the sliding brackets and is connected to the air guide pipe. A second power component is hinged to one end of the pair of sliding brackets.

[0009] Preferably, the dust removal component includes a first power component installed on the side of the main body shell, a scraper assembly threadedly connected to the middle of the first power component, the scraper assembly being slidably connected inside the main body shell, and the scrapers at both ends of the scraper assembly being located inside two cavities of the main body shell respectively.

[0010] Preferably, the dust removal component further includes ash outlets located at the middle and both ends of the bottom of the main body shell, and the bottom of the main body shell is fixedly connected to an ash collection box by bolts.

[0011] Preferably, the gas transmission component includes a main gas transmission pipe located on the side of the main body shell, a pair of guide pipes extending from the output end of the main gas transmission pipe and fixedly connected to the main body shell, a switching baffle rotatably connected at the connection between the main gas transmission pipe and the guide pipes, and a motor fixedly connected to the outside of the main gas transmission pipe.

[0012] Preferably, the motor output end penetrates the main gas supply pipe and is connected to the switching baffle. A pair of mirror-distributed limiting grooves are provided at the connection between the main gas supply pipe and the guide pipe, and the switching baffle abuts against the inside of the limiting grooves.

[0013] Preferably, the output component includes an output pipe fixedly connected to the main body shell, and a pair of connection channels are separated at the connection between the output pipe and the main body shell by a partition plate. A sealing baffle is rotatably connected in the middle of the output pipe, and a pair of mirror-distributed sealing gaskets are fixedly connected to the inner wall of the output pipe. The sealing baffle abuts against the sealing gaskets, and an exhaust fan is connected to one end of the output pipe.

[0014] A high-temperature dust removal method for wall-flow honeycomb ceramics includes the following steps: S1. The high-temperature flue gas is rapidly cooled to below 600℃, and the high-temperature flue gas is treated with acid and alkali. Then, the high-temperature flue gas is transported to the main body shell through the main gas pipeline. S2. When the main gas pipeline delivers high-temperature flue gas toward the main body shell, the motor is started first, and the motor drives the switching baffle to rotate until one end of the switching baffle rotates into the limiting groove, so that the main gas pipeline is connected to the guide pipeline at one end. This allows the high-temperature flue gas to be guided into a chamber inside the main body shell. At this time, the high-temperature flue gas will pass through the wall-flow honeycomb ceramic filter group, and the high-temperature flue gas will be filtered by the wall-flow honeycomb ceramic filter group, so that the high-temperature flue gas is filtered into high-temperature gas. S3. The filtered high-temperature flue gas will be concentrated upward and discharged to the output pipe through the connecting channel. When the high-temperature gas passes through the sealing baffle, it will push the sealing baffle open and push the sealing baffle to the other side, so that the sealing baffle abuts against the sealing gasket and seals the connecting channel on the other side. S4. When the high-temperature gas is discharged from the connection channel, the pressurizing fan is started simultaneously. The pressurizing fan extracts part of the high-temperature gas from the connection channel and, after being pressurized by the pressurizing fan, delivers it to the inside of the air guide pipe through the air delivery hose. The gas then flushes the wall-flow honeycomb ceramic filter group through the nozzle at the bottom of the air guide pipe. This causes the dust inside the wall-flow honeycomb ceramic filter group to be cleaned and discharged by the gas impact, and fall to the bottom of the main body shell.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention facilitates the cleaning of the wall-flow honeycomb ceramic filter assembly by incorporating a combination of dust removal and cleaning components. Dust is collected and drawn from the outlet component by a pressurized fan, then pumped into the air duct. The gas is then ejected through nozzles at the bottom of the air duct, impacting the wall-flow honeycomb ceramic filter assembly and blowing out the dust particles trapped inside. This cleans the filter assembly. A scraper assembly then scrapes the dust from the inner wall of the main body shell, collecting it at the bottom and pushing it into a dust collection box for centralized processing. This invention facilitates the switching of wall-flow honeycomb ceramic filter groups by setting up a combination of gas delivery and outlet components. This ensures that one side of a pair of wall-flow honeycomb ceramic filter groups is used while the other side is cleaned. By rotating the switching baffle at the connection between the main gas delivery pipe and the guide pipe, the feed channel of the guide pipe is adjusted, so that the high-temperature flue gas delivered by the main gas delivery pipe can be periodically filtered by the wall-flow honeycomb ceramic filter groups inside the main body shell. At the same time, the sealing baffle and the sealing gasket abut against each other, thereby blocking the connection channel on one side to prevent the filtered gas from entering the other cavity of the main body shell from the connection between the outlet pipe and the main body shell, thus avoiding the pressure balance between the two cavities inside the main body shell. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the middle part of the present invention; Figure 3 This is a schematic diagram of the overall cleaning component of the present invention; Figure 4 This is a cross-sectional view of the connection between the cleaning component and the exporting component of the present invention; Figure 5 This is a schematic diagram showing the dust removal component of the present invention located inside the main body shell; Figure 6 This is an overall exploded view of the dust removal component of the present invention; Figure 7 This is a schematic diagram of the overall gas delivery component of the present invention; Figure 8 This is a schematic diagram of the overall components derived from the present invention.

[0017] In the picture: 1. Main body shell; 2. Gas transmission components; 21. Main gas transmission pipeline; 22. Guide pipeline; 23. Switching baffle; 24. Motor; 25. Limiting groove; 3. Outgoing component; 31. Output pipe; 32. Connection channel; 33. Sealing baffle; 34. Sealing gasket; 4. Dust removal components; 41. First power unit; 42. Scraper assembly; 43. Ash outlet; 44. Ash collection box; 5. Cleaning components; 51. Pressurizing fan; 52. Air supply hose; 53. Sliding bracket; 54. Air guide pipe; 55. Secondary power unit; 6. Wall-flow honeycomb ceramic filter assembly. Detailed Implementation

[0018] 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.

[0019] like Figures 1 to 8 As shown, the present invention provides a high-temperature dust removal device for wall-flow honeycomb ceramic filters, including a main shell 1, a pair of wall-flow honeycomb ceramic filter groups 6 fixedly connected inside the main shell 1, and further including: The dust removal component 4 is installed on the lower side of the wall-flow honeycomb ceramic filter group 6 inside the main body shell 1, and is used to clean the dust discharged from the wall-flow honeycomb ceramic filter group 6. Cleaning component 5, which is installed at the upper end of the main body shell 1, is used to backwash and clean the wall-flow honeycomb ceramic filter group 6. The cleaning component 5 includes a pair of pressurizing fans 51 fixedly connected to the top of the main body shell 1. The output end of the pressurizing fan 51 penetrates the main body shell 1 and extends into the interior of the main body shell 1. An air supply hose 52 is fixedly installed at the output end of the pressurizing fan 51.

[0020] like Figures 6 to 8 As shown, an air supply component 2 is installed on the lower side of the main body shell 1, and an outlet component 3 is installed on the top of the main body shell 1. A partition plate is provided inside the main body shell 1 to divide the interior of the main body shell 1 into two chambers. The bottom of the partition plate of the main body shell 1 is located below the outlet component 3. A pair of wall-flow honeycomb ceramic filter groups 6 are distributed in a mirror image on both sides of the partition plate inside the main body shell 1.

[0021] The above solution involves dividing the interior of the main body shell 1 into two cavities. When filtering high-temperature flue gas, the wall-flow honeycomb ceramic filter group 6 on one side is used for filtration, and the filtered high-temperature gas is backflushed on the wall-flow honeycomb ceramic filter group 6 on the other side by the cleaning component 5, so that the wall-flow honeycomb ceramic filter group 6 can be cleaned, thereby achieving recycling.

[0022] like Figures 2 to 6 As shown, the input end of the pressurizing fan 51 is connected to the output component 3, and the input ends of the pair of pressurizing fans 51 respectively penetrate into a cavity inside the main body shell 1; The cleaning component 5 also includes a pair of sliding brackets 53 slidably connected inside the main body shell 1. The bottom of the sliding brackets 53 is fixedly connected to the air guide pipe 54. The bottom of the air guide pipe 54 is provided with multiple nozzles corresponding to the number of honeycomb ceramic blocks inside the wall flow honeycomb ceramic filter group 6. The output end of the air supply hose 52 penetrates the sliding brackets 53 and is connected to the air guide pipe 54. A second power component 55 is hinged to one end of the pair of sliding brackets 53.

[0023] The above solution involves a cleaning component 5, where a pressurizing fan 51 draws filtered high-temperature gas from the outlet component 3. The pressurizing fan 51 then pressurizes the gas and delivers it through a gas delivery hose 52 to the inside of the air guide pipe 54. A nozzle at the bottom of the air guide pipe 54 then ejects the pressurized gas, impacting the wall-flow honeycomb ceramic filter assembly 6. This causes dust particles trapped inside the filter assembly 6 to be blown out from the bottom, thus cleaning the wall-flow honeycomb ceramic filter assembly 6. This reduces the frequency of replacement and improves the filtration efficiency and extends the service life of the wall-flow honeycomb ceramic filter assembly 6.

[0024] like Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, the dust removal component 4 includes a first power component 41 installed on the side of the main body shell 1. A scraper assembly 42 is threadedly connected to the middle of the first power component 41. The scraper assembly 42 is slidably connected inside the main body shell 1, and the scrapers at both ends of the scraper assembly 42 are respectively located inside the two cavities of the main body shell 1. The dust removal component 4 also includes a dust outlet 43 located at the middle and both ends of the bottom of the main body shell 1, and a dust collection box 44 is fixedly connected to the bottom of the main body shell 1 by bolts.

[0025] The above solution is adopted as follows: by setting up a dust removal component 4, the first power component 41 drives the scraper assembly 42 to reciprocate at the bottom of the main body shell 1. The scraper assembly 42 cleans up the dust that has fallen from the main body shell 1, so that the dust is scraped down from the inner wall of the main body shell 1 by the scraper of the scraper assembly 42 and collected at the bottom of the main body shell 1. The dust is pushed to the dust outlet 43 and falls from the dust outlet 43 into the dust collection box 44. By periodically disassembling the dust collection box 44, the collected dust can be centrally processed.

[0026] like Figure 2 and Figure 7As shown, the gas transmission component 2 includes a main gas transmission pipe 21 located on the side of the main body shell 1. A pair of guide pipes 22 extend from the output end of the main gas transmission pipe 21 and are fixedly connected to the main body shell 1. A switching baffle 23 is rotatably connected at the connection between the main gas transmission pipe 21 and the guide pipes 22. A motor 24 is fixedly connected to the outside of the main gas transmission pipe 21. The output end of the motor 24 penetrates the main gas pipeline 21 and connects to the switching baffle 23. A pair of mirror-distributed limiting grooves 25 are provided at the connection between the main gas pipeline 21 and the guide pipeline 22. The switching baffle 23 abuts against the inside of the limiting grooves 25.

[0027] The above scheme is adopted: by setting up the gas conveying component 2, the switching baffle 23 rotates at the connection between the main gas conveying pipe 21 and the guide pipe 22 to adjust the feed channel of the guide pipe 22, so that the high temperature flue gas conveyed by the main gas conveying pipe 21 can periodically use the internal wall flow honeycomb ceramic filter group 6 of the main body shell 1 to filter the flue gas, thereby cleaning the other wall flow honeycomb ceramic filter group 6.

[0028] like Figure 2 and Figure 8 As shown, the output component 3 includes an output pipe 31 fixedly connected to the main body shell 1. A pair of connecting channels 32 are separated at the connection between the output pipe 31 and the main body shell 1 by a partition plate. A sealing baffle 33 is rotatably connected to the middle of the output pipe 31. A pair of mirror-distributed sealing gaskets 34 are fixedly connected to the inner wall of the output pipe 31. The sealing baffle 33 abuts against the sealing gaskets 34. An exhaust fan is connected to one end of the output pipe 31.

[0029] The above solution is adopted: by setting the outlet component 3, the sealing baffle 33 and the sealing gasket 34 abut against each other, thereby blocking the connection channel 32 on one side, so as to prevent the filtered gas from entering the other cavity of the main body shell 1 from the connection between the outlet pipe 31 and the main body shell 1, causing the air pressure balance of the two cavities inside the main body shell 1, resulting in the high temperature flue gas entering the main body shell 1 and then directly entering the other cavity from the ash outlet 43 at the bottom of the main body shell 1.

[0030] A high-temperature dust removal method for wall-flow honeycomb ceramics includes the following steps: S1. The high-temperature flue gas is rapidly cooled to a temperature below 600°C, and the high-temperature flue gas is treated with acid and alkali. Then, the high-temperature flue gas is transported to the main body shell 1 through the main gas pipeline 21. S2. When the main gas pipeline 21 delivers high-temperature flue gas toward the main body shell 1, the motor 24 is started first, which drives the switching baffle 23 to rotate until one end of the switching baffle 23 rotates into the limiting groove 25, so that the main gas pipeline 21 is connected to the guide pipeline 22 at one end. This allows the high-temperature flue gas to be guided into a chamber inside the main body shell 1. At this time, the high-temperature flue gas will pass through the wall-flow honeycomb ceramic filter group 6, and the wall-flow honeycomb ceramic filter group 6 will filter the high-temperature flue gas, so that the high-temperature flue gas is filtered into high-temperature gas. S3. The filtered high-temperature flue gas will be concentrated upward and discharged to the output pipe 31 through the connecting channel 32. When the high-temperature gas passes through the sealing baffle 33, it will push the sealing baffle 33 open and push the sealing baffle 33 to the other side, so that the sealing baffle 33 abuts against the sealing gasket 34 and seals the connecting channel 32 on the other side. S4. When the high-temperature gas is discharged from the connecting channel 32, the pressurizing fan 51 is started simultaneously. The pressurizing fan 51 extracts part of the high-temperature gas from the connecting channel 32, and after being pressurized by the pressurizing fan 51, it is transported to the inside of the air guide pipe 54 through the air delivery hose 52. In this way, the gas is flushed against the wall-flow honeycomb ceramic filter group 6 through the nozzle at the bottom of the air guide pipe 54. The dust inside the wall-flow honeycomb ceramic filter group 6 is cleaned and discharged by the gas impact and falls to the bottom of the main body shell 1.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature dust removal device for wall-flow honeycomb ceramic filters, comprising a main body shell (1), wherein a pair of wall-flow honeycomb ceramic filter groups (6) are fixedly connected inside the main body shell (1), characterized in that, Also includes: The dust removal component (4) is installed on the lower side of the wall-flow honeycomb ceramic filter group (6) inside the main body shell (1) and is used to clean the dust discharged from the wall-flow honeycomb ceramic filter group (6). The cleaning component (5), which is installed at the upper end of the main body shell (1), is used to backwash and clean the wall-flow honeycomb ceramic filter assembly (6); The cleaning component (5) includes a pair of pressurizing fans (51) fixedly connected to the top of the main body shell (1). The output end of the pressurizing fan (51) penetrates the main body shell (1) and extends into the interior of the main body shell (1). A gas delivery hose (52) is fixedly installed at the output end of the pressurizing fan (51).

2. The high-temperature dust removal device for wall-flow honeycomb ceramics according to claim 1, characterized in that: A gas delivery component (2) is installed on the lower side of the main body shell (1), and an outlet component (3) is installed on the top of the main body shell (1). A partition plate is provided inside the main body shell (1) to divide the interior of the main body shell (1) into two cavities. The bottom of the partition plate of the main body shell (1) is located below the outlet component (3). A pair of wall-flow honeycomb ceramic filter groups (6) are distributed in a mirror image on both sides of the partition plate inside the main body shell (1).

3. The high-temperature dust removal device for wall-flow honeycomb ceramics according to claim 1, characterized in that: The input end of the pressurizing fan (51) is connected to the output component (3), and the input ends of the pair of pressurizing fans (51) penetrate into a cavity of the main body shell (1).

4. The high-temperature dust removal device for wall-flow honeycomb ceramics according to claim 1, characterized in that: The cleaning component (5) also includes a pair of sliding brackets (53) slidably connected inside the main body shell (1). The bottom of the sliding brackets (53) is fixedly connected to an air guide pipe (54). The bottom of the air guide pipe (54) is provided with multiple nozzles corresponding to the number of honeycomb ceramic blocks inside the wall-flow honeycomb ceramic filter group (6). The output end of the air supply hose (52) penetrates the sliding brackets (53) and is connected to the air guide pipe (54). A second power component (55) is hinged to one end of the pair of sliding brackets (53).

5. The high-temperature dust removal device for wall-flow honeycomb ceramics according to claim 1, characterized in that: The dust removal component (4) includes a first power component (41) installed on the side of the main body shell (1). The first power component (41) is threadedly connected to a scraper assembly (42) in the middle. The scraper assembly (42) is slidably connected inside the main body shell (1), and the scrapers at both ends of the scraper assembly (42) are located inside the two cavities of the main body shell (1).

6. The high-temperature dust removal device for wall-flow honeycomb ceramics according to claim 1, characterized in that: The dust removal component (4) also includes a dust outlet (43) located at the middle and both ends of the bottom of the main body shell (1), and a dust collection box (44) is fixedly connected to the bottom of the main body shell (1) by bolts.

7. The high-temperature dust removal device for wall-flow honeycomb ceramics according to claim 2, characterized in that: The gas delivery component (2) includes a main gas delivery pipe (21) located on the side of the main body shell (1). A pair of guide pipes (22) extend from the output end of the main gas delivery pipe (21) and are fixedly connected to the main body shell (1). A switching baffle (23) is rotatably connected at the connection between the main gas delivery pipe (21) and the guide pipes (22). A motor (24) is fixedly connected to the outside of the main gas delivery pipe (21).

8. The high-temperature dust removal device for wall-flow honeycomb ceramics according to claim 7, characterized in that: The output end of the motor (24) penetrates the main gas pipeline (21) and is connected to the switching baffle (23). A pair of mirror-distributed limiting grooves (25) are provided at the connection between the main gas pipeline (21) and the guide pipeline (22). The switching baffle (23) abuts against the inside of the limiting grooves (25).

9. The high-temperature dust removal device for wall-flow honeycomb ceramics according to claim 2, characterized in that: The output component (3) includes an output pipe (31) fixedly connected to the main body shell (1). The connection between the output pipe (31) and the main body shell (1) is separated into a pair of connecting channels (32) by a partition plate. A closed baffle (33) is rotatably connected in the middle of the output pipe (31). A pair of mirror-distributed sealing gaskets (34) are fixedly connected to the inner wall of the output pipe (31). The closed baffle (33) abuts against the sealing gaskets (34). An exhaust fan is connected to one end of the output pipe (31).

10. A high-temperature dust removal method for wall-flow honeycomb ceramics, applied to the high-temperature dust removal device for wall-flow honeycomb ceramics as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. The high-temperature flue gas is rapidly cooled to a temperature below 600°C, and the high-temperature flue gas is treated with acid and alkali. Then, the high-temperature flue gas is transported to the main body shell (1) through the main gas pipeline (21). S2. When the main gas pipeline (21) delivers high-temperature flue gas toward the main body shell (1), the motor (24) is started first, so that the motor (24) drives the switching baffle (23) to rotate until one end of the switching baffle (23) rotates into the limiting groove (25), so that the main gas pipeline (21) is connected to the guide pipeline (22) at one end, so that the high-temperature flue gas can be guided to a chamber inside the main body shell (1). At this time, the high-temperature flue gas will pass through the wall flow honeycomb ceramic filter group (6), and the wall flow honeycomb ceramic filter group (6) will filter the high-temperature flue gas, so that the high-temperature flue gas is filtered into high-temperature gas. S3. The filtered high-temperature flue gas will be concentrated upward and discharged to the output pipe (31) through the connecting channel (32). When the high-temperature gas passes through the sealing baffle (33), it will push the sealing baffle (33) open and push the sealing baffle (33) to the other side, so that the sealing baffle (33) abuts against the sealing gasket (34) and seals the connecting channel (32) on the other side. S4. When the high-temperature gas is discharged from the connecting channel (32), the pressurizing fan (51) is started simultaneously. The pressurizing fan (51) extracts part of the high-temperature gas from the connecting channel (32) and after being pressurized by the pressurizing fan (51), it is transported to the inside of the air guide pipe (54) through the air delivery hose (52). In this way, the nozzle at the bottom of the air guide pipe (54) is used to flush the wall-flow honeycomb ceramic filter group (6) with gas. The dust inside the wall-flow honeycomb ceramic filter group (6) is flushed by the gas and the dust at the bottom of the wall-flow honeycomb ceramic filter group (6) is cleaned and discharged by the gas backflow and falls to the bottom of the main body shell (1).

Images