A flue gas filtration and treatment device and method for a biomass burner

Abstract

The present invention relates to the technical field of filtration, and specifically discloses a flue gas filtration treatment device and method for a biomass burner, including a filtration mechanism disposed in an installation hole for filtering the flue gas generated by the biomass burner. The present invention cooperates the support assembly, the moving assembly and the blowing assembly, which facilitates blowing air from the inside to the outside of the cloth bag after stretching and unfolding the cloth bag, so as to clean the impurities such as soot adhering to the outer surface of the cloth bag, facilitating the long-term filtration use of the cloth bag. Compared with the traditional cleaning methods such as sweeping and hitting, the structure is simple, the effect is better, and the cloth bag can be easily installed through the installation assembly, avoiding the leakage of flue gas from the installation part of the cloth bag and the installation hole, thus avoiding affecting the filtration effect, and facilitating driving the support assembly and the moving assembly to rotate to adjust the contact position between the support rod and the cloth bag, reducing the dead angle of cleaning.

Description

Technical Field

[0001] The present invention relates to the technical field of filtration, and particularly to a flue gas filtration and treatment device and method for a biomass burner. Background Art

[0002] When a biomass burner burns, it will generate a large amount of dust and flue gas, which contain a large amount of particulate matter and harmful gases. If not treated, these pollutants will cause serious harm to the environment and human health. Filtering the flue gas can effectively remove these harmful substances, protect the environment and human health. In the prior art, the equipment for filtering and treating the flue gas of a biomass burner is usually a bag filter.

[0003] The publication number CN117443095B discloses a bag filter and an anti-corrosion coating production system including the bag filter. The problems proposed in its background art are as follows: Due to the long length of the filter bag and the air permeability of the filter bag, when the gas ejected from the spray pipe reaches the bottom of the filter bag, the spray force drops significantly, the cleaning ability of the filter bag is reduced, and dust blockage is likely to occur at the bottom of the filter bag. At the same time, when the material is broken, the shear temperature rises. During a long-term dust removal process, the relatively high temperature of the dust may cause local burning of the filter bag, reducing the dust filtration effect.

[0004] The publication number CN113350909B discloses a bag filter. The problems proposed in its background art are as follows: During the use of the bag filter, dust is likely to agglomerate and adhere to the filter bag. Only using a pulse spray pipe for dust removal, the dust removal effect needs to be improved.

[0005] Combining the prior art, the following problems exist:

[0006] The above application documents set a cleaning device outside the filter bag and a fan inside the filter bag to clean the filter bag. Although it can achieve a certain cleaning effect, during the cleaning process, the brush will exert a certain extrusion on the dust on the outer surface of the filter bag, causing the dust to penetrate deeper into the filter bag. Moreover, when the fan generates wind, it will also generate suction. Setting the fan inside the filter bag is not conducive to actual cleaning use. In addition, the above application documents clean the filter bag by hitting it. However, a support mechanism for supporting the filter bag is usually provided inside the filter bag. During the hitting process, the support mechanism collides with the hitting mechanism, affecting actual use. Moreover, affected by the support mechanism, the hitting is not sufficient, reducing the cleaning effect, thus making it inconvenient for the filter bag to be used for long-term filtration. Although the existing filter bag cleaning mechanism can achieve a certain cleaning effect, there are still certain cleaning dead corners, affecting the subsequent filtration use of the filter bag, and there are certain deficiencies. To solve the above problems, a flue gas filtration and treatment device and method for a biomass burner are proposed. Summary of the Invention

[0007] To overcome the deficiencies of the above-mentioned prior art, the present invention provides a flue gas filtration treatment device and method for a biomass burner, which facilitates the full cleaning of impurities attached to the surface of the filter bag, reduces the cleaning dead corners, improves the cleaning effect, and thus facilitates the subsequent long-term use of filtering flue gas.

[0008] To achieve the above objectives, the present invention is realized through the following technical solutions: A flue gas filtration treatment device for a biomass burner, including a box body, a mounting plate fixedly spaced inside the box body, and mounting holes spacedly opened at the top of the mounting plate. It further includes a filtration mechanism disposed in the mounting holes for filtering the flue gas generated by the biomass burner. The filtration mechanism includes:

[0009] A filter bag, disposed at the bottom of the mounting plate. A support assembly for supporting the filter bag from the inside of the filter bag is provided at the bottom of the mounting plate. The support assembly includes:

[0010] Support blocks. The side walls of the support blocks are sleeved with support rods arranged in a circular array. Moving components for driving the support rods to move are provided at both the upper inner side and the lower inner side of the support rods to stretch the filter bag and cause deformation. The moving components include:

[0011] Fixed seats, disposed at both the upper inner side and the lower inner side of the support rods. A blowing component for blowing air is provided on the side of the fixed seats close to each other to blow air on the filter bag when the filter bag stretches and deforms, so as to blow off the impurities adhering to the outer side of the filter bag due to filtration. The blowing component includes:

[0012] Threaded rods, rotatably disposed on the side of the fixed seats close to each other. The side walls of the threaded rods are threadedly connected with air guide boxes. Nozzles are fixedly provided at the exhaust ends of the air guide boxes.

[0013] Furthermore, the moving components further include:

[0014] Fixed blocks, fixedly disposed inside the fixed seats. The interiors of the fixed seats are designed to be hollow. Expanding components arranged in a circular array are provided on the side walls of the fixed blocks. The expanding components include:

[0015] Fixed shells, fixedly disposed on the side walls of the fixed blocks and extending outside the fixed seats. A fixed groove is opened on the inner wall of one end of the fixed shell close to the fixed block. A first electromagnet is fixedly provided on the inner wall of the fixed groove. A fixed rod extending outside the fixed shell is sleeved on the inner wall of the fixed groove. A second electromagnet is fixedly provided at one end of the fixed rod close to the first electromagnet. The fixed shell and the second electromagnet are stopped and matched through the fixed groove to limit the separation of the fixed rod from the fixed shell. The end of the fixed rod outside the fixed shell is fixedly connected to the inner side of the support rod.

[0016] Further, on one side of the fixing seats close to each other and on both sides of the threaded rod, guide rods are fixedly arranged. The side wall of the guide rod penetrates through the air guide box, and a guide hole for sleeving the guide rod is opened at the top of the air guide box. When the threaded rod rotates, the air guide box rises and falls under the limit of the guide rod, and the side wall of the guide rod is hermetically arranged with the inner wall of the guide hole;

[0017] The top of the threaded rod penetrates through the upper fixing seat and extends to the top of the mounting plate. A rotating assembly for driving the support rod and the support block to rotate is arranged at the top of the upper fixing seat to clean the contact position between the support rod and the cloth bag. An installation assembly for installing the mounting plate and the cloth bag is arranged at the top of the rotating assembly.

[0018] Further, the installation assembly includes:

[0019] A bracket is fixedly arranged on the top of the mounting plate and outside the mounting hole. A connecting block is fixedly arranged inside the bracket. An installation block is fixedly arranged at the bottom of the connecting block. A first pressing groove extending outside the installation block is opened on the outer side of the top of the installation block. A first pressing ring is sleeved on the inner wall of the first pressing groove. The centers of the installation block, the connecting block and the mounting hole are on the same vertical straight line;

[0020] An installation sleeve is fixedly arranged on the top of the mounting plate and between the installation block and the bracket. A second pressing groove is opened on the inner wall of the installation sleeve. A second pressing ring is sleeved on the inner wall of the second pressing groove. The inner wall diameter of the second pressing ring is larger than the outer wall diameter of the first pressing ring.

[0021] Further, the installation assembly further includes:

[0022] An installation cover is threadedly connected to the outer wall of the installation sleeve, and a vertically arranged sealing ring is fixedly sleeved on the upper end of the outer wall of the installation sleeve;

[0023] An installation ring is fixedly arranged on the inner wall of the top of the installation cover to limit the first pressing ring and the second pressing ring after the installation shell and the installation sleeve are screwed tightly.

[0024] Further, the rotating assembly includes:

[0025] A chute is opened at the bottom of the installation block and is designed in an incomplete ring shape so that a baffle structure is formed between the inner walls on both sides of the chute. A slider is placed inside the chute. The slider rotates inside the chute, and the bottom of the slider is fixedly connected to the top of the upper fixing seat;

[0026] A third electromagnet is fixedly arranged at one end of the slider. A fourth electromagnet is fixedly arranged on one side of the baffle structure close to the third electromagnet. A spring is fixedly arranged on the side of the baffle structure away from the third electromagnet, and the end of the spring away from the baffle structure is fixedly connected to the other end of the slider.

[0027] Further, through holes for sleeving the threaded rods are formed at the tops of the connecting block and the mounting block, and a driving mechanism for driving the threaded rods to rotate is arranged at the top of the threaded rods. The driving mechanism includes:

[0028] A first gear is fixedly sleeved on the top of the threaded rod at the corner. Second gears are fixedly sleeved on the tops of the threaded rods along the X-axis direction of the threaded rod at the corner. The first gear meshes with the adjacent second gears, and the second gears mesh one by one along the X-axis direction. Third gears are fixedly sleeved on the tops of the threaded rods along the Y-axis direction of the threaded rod at the corner. The first gear meshes with the adjacent third gears, and the third gears mesh one by one along the Y-axis direction. Fourth gears are fixedly sleeved on the tops of the remaining threaded rods. The third gear meshes with the adjacent fourth gears, and the fourth gears mesh one by one along the X-axis direction. The fourth gears do not contact along the Y-axis direction.

[0029] A servo motor is fixedly arranged on the outer wall of the box body, and the output shaft of the servo motor is in transmission connection with the threaded rod at the corner.

[0030] Further, a placement through groove is formed at the top of the mounting block. The placement through groove at the top of the mounting block is located outside the sliding groove and inside the first pressing groove.

[0031] An air supply mechanism for supplying air to the nozzle is arranged at the top of the box body.

[0032] Further, the lower end of the support block is designed in a hemispherical shape to fit the inner wall bottom of the cloth bag. The lower ends of the support rods are all designed in an arc shape and are all in contact with the lower end of the side wall of the support block. A support groove for sleeving the support rod is formed in the side wall of the support block.

[0033] The inside of the support block is designed to be hollow, and air guide holes are formed at intervals in the top and side walls of the support block to blow off impurities at the bottom of the cloth bag.

[0034] The present invention also provides a use method of a flue gas filtration and treatment device for a biomass burner. Using the flue gas filtration and treatment device for a biomass burner, the method includes the following steps:

[0035] S1: After the flue gas generated by the biomass burner enters the box body, it is filtered through the cloth bags arranged at intervals to block the soot and impurities in the flue gas on the outer surface of the cloth bags.

[0036] S2: When a large amount of soot adheres to the outer surface of the cloth bag, the soot adhering to the outer surface of the cloth bag is cleaned by the cooperation of the moving component and the air supply component to filter the flue gas for a long time.

[0037] The present invention provides a flue gas filtration and treatment device and method for a biomass burner. Compared with the prior art, the following beneficial effects are achieved:

[0038] 1. The present invention cooperates with the support component, the moving component and the blowing component, so that after the cloth bag is stretched, air can be blown out from the inside of the cloth bag to clean the impurities such as smoke and dust adhering to the outer surface of the cloth bag, which is convenient for long-term filtering use of the cloth bag. Compared with traditional cleaning methods such as sweeping and beating, the structure is simple and the effect is better. The cloth bag can be easily installed through the installation component to avoid smoke leakage from the installation point between the cloth bag and the installation hole to avoid affecting the filtering effect. It is also convenient to drive the support component and the moving component to rotate to adjust the contact position between the support rod and the cloth bag to reduce the dead angle of cleaning.

[0039] 2. The present invention stretches the cloth bag outward from the inside of the cloth bag by cooperating with the moving assembly and the supporting assembly, so that the gas blown out by the subsequent blowing assembly can contact with the smoke and dust, thereby improving the cleaning effect. The nozzle of the blowing assembly can be moved vertically, so as to fully clean the cloth bag and further improve the cleaning effect. When the cleaning is completed, the supporting rod is reset to facilitate the actual use of the cloth bag.

[0040] Movable components are arranged at the upper and lower ends of the support rod to improve the stability of the movement of the support rod, thereby improving the stability of the stretched cloth bag, and the lower end of the support rod is designed to be arc-shaped to avoid damage to the cloth bag when it is stretched out. The interior of the support block is designed to be hollow and air guide holes are arranged to facilitate gas blowing to the bottom of the cloth bag along the air guide holes and the support block, thereby reducing dead corners for cleaning.

[0041] 3. The present invention facilitates synchronous rotation of multiple threaded rods arranged at intervals through a driving mechanism, and when the transmission directions of adjacent gears are opposite, the air guide box can be moved synchronously by adjusting the threaded connection direction between the threaded rods and the air guide box, so as to facilitate practical use.

[0042] 4. The present invention cooperates with the first pressure ring and the first pressure groove, and with the second pressure ring and the second pressure groove to limit the opening of the bag multiple times, and tightens it after limiting to improve the sealing performance, and further improves the sealing performance by setting a sealing ring to prevent smoke leakage.

[0043] 5. The present invention adjusts the contact position between the support rod and the cloth bag by rotating the assembly, and cleans the cloth bag again after the contact position between the support rod and the cloth bag is adjusted, thereby reducing cleaning dead angles and improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the overall structure of the smoke filtering and processing device for a biomass burner of the present invention;

[0045] Figure 2 It is a schematic diagram of the overall rear view structure of the present invention;

[0046] Figure 3It is a schematic diagram of the cross-sectional structure of the box body of the present invention;

[0047] Figure 4 It is a schematic diagram of the structure of the filtering mechanism, the mounting plate and the driving mechanism of the present invention;

[0048] Figure 5 It is a schematic diagram of the filter mechanism and the mounting plate structure of the present invention;

[0049] Figure 6 It is a schematic diagram of the structure of the filtering mechanism of the present invention;

[0050] Figure 7 It is a schematic diagram of the cross-sectional structure of the cloth bag of the present invention;

[0051] Figure 8 It is a schematic diagram of the inverted structure of the support rod and the moving assembly of the present invention;

[0052] Figure 9 It is a schematic diagram of the cross-sectional structure of the installation cover of the present invention;

[0053] Figure 10 It is a schematic diagram of the exploded structure of the installation assembly of the present invention;

[0054] Figure 11 It is a schematic diagram of the structure of the placement groove, the first pressure ring, the second pressure ring, the installation ring and the installation cover of the present invention;

[0055] Figure 12 It is a cross-sectional view of the mounting block and a schematic diagram of the rotating assembly structure of the present invention;

[0056] Figure 13 It is a schematic diagram of the baffle structure, the slide groove and the slider structure of the present invention;

[0057] Figure 14 It is a schematic diagram of the structure of the mobile component of the present invention;

[0058] Figure 15 It is a schematic diagram of the structure of the propping assembly of the present invention;

[0059] Figure 16 For the present invention Figure 15 A is a schematic diagram of the enlarged structure of the middle part;

[0060] Figure 17 It is a schematic diagram of the driving mechanism structure of the present invention.

[0061] Reference numerals in the above drawings: 1. box body; 2. filter mechanism; 3. air supply mechanism; 4. mounting plate; 5. drive mechanism; 6. placement slot;

[0062] 21. Cloth bag; 22. Mounting assembly; 23. Blowing assembly; 24. Support assembly; 25. Moving assembly; 26. Rotating assembly;

[0063] 221. Installation cover; 222. Connecting block; 223. Bracket; 224. Second pressure ring; 225. First pressure ring; 226. Second pressure groove; 227. First pressure groove; 228. Sealing ring; 229. Installation sleeve; 2291. Installation block; 2292. Installation ring;

[0064] 231. Threaded rod; 232. Nozzle;

[0065] 241. Support rod; 242. Support block;

[0066] 251. Fixed seat; 252. Fixed block; 253. Expanding component; 2531. Fixed shell; 2532. Fixed groove; 2533. First electromagnet; 2534. Second electromagnet; 2535. Fixed rod;

[0067] 261. Slide block; 262. Third electromagnet; 263. Fourth electromagnet; 264. Slide groove; 265. Baffle structure;

[0068] 51. Servo motor; 52. Third gear; 53. Second gear; 54. First gear; 55. Fourth gear. Specific embodiments

[0069] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0070] Embodiment 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8, A flue gas filtration and treatment device for a biomass burner, comprising a box body 1, a mounting plate 4 fixedly spaced inside the box body 1, and mounting holes spacedly opened at the top of the mounting plate 4. A hopper is fixedly provided at the bottom of the box body 1, and a scraper ash conveying mechanism is arranged at the bottom of the hopper. A bracket 223 is arranged on the outer wall of the box body 1 to mount the box body 1 etc. at a designated position through the bracket 223. An air inlet pipe and an exhaust pipe are respectively arranged on both sides of the box body 1. The flue gas generated by the biomass burner enters the box body 1 from the air inlet pipe, is filtered by the cloth bag 21, and then discharged through the exhaust pipe. The soot attached to the outer surface of the cloth bag 21 is blown off and falls into the hopper, and enters the scraper ash conveying mechanism through the hopper to process the cleaned soot. The above are all prior arts and will not be elaborated here. It further includes a filtering mechanism 2 arranged in the mounting holes for filtering the flue gas generated by the biomass burner. The filtering mechanism 2 includes:

[0071] The cloth bag 21 is arranged at the bottom of the mounting plate 4, and a support assembly 24 for supporting the cloth bag 21 from the inside of the cloth bag 21 is arranged at the bottom of the mounting plate 4. The support assembly 24 includes:

[0072] Support blocks 242, an annular array of support rods 241 is sleeved on the side wall of the support blocks 242. Moving assemblies 25 for driving the support rods 241 to move are arranged at both the upper inner end and the lower inner end of the support rods 241 to stretch the cloth bag 21 to deform;

[0073] The lower end of the support block 242 is designed in a hemispherical shape to fit the bottom inner wall of the cloth bag 21. The lower ends of the support rods 241 are all designed in an arc shape and all fit the lower end of the side wall of the support block 242. Support grooves for sleeving the support rods 241 are opened on the side wall of the support block 242;

[0074] The inside of the support block 242 is designed to be hollow, and air guide holes are opened at intervals on both the top and the side wall of the support block 242 to blow off the impurities at the bottom of the cloth bag 21.

[0075] During specific implementation, the inner side wall of the cloth bag 21 is supported by the annular array of support rods 241, and the bottom inner wall of the cloth bag 21 is supported by the support blocks 242 to expand the cloth bag 21, so as to facilitate the contact between the flue gas and the outer surface of the cloth bag 21, thereby filtering the soot in the flue gas;

[0076] By providing the support grooves, it is convenient to place the support rods 241. When the support rods 241 are constrained by the cloth bag 21 and enter the support grooves, it is convenient to expand the cloth bag 21 through the support rods 241 and the support blocks 242. When the support rods 241 are driven by the moving assemblies 25 to move away from the support blocks 242, the cloth bag 21 is expanded, and the lower ends of the support rods 241 are designed in an arc shape to avoid damaging the cloth bag 21 when expanding;

[0077] The interior of the support block 242 is hollow-designed and provided with air guide holes, facilitating the blowing of air along the air guide holes and the support block 242 to the bottom of the cloth bag 21, reducing the cleaning dead corners.

[0078] Please refer to Figure 7 , Figure 8 , Figure 14 , Figure 15 and Figure 16 , the moving component 25 includes:

[0079] Fixed seats 251 are arranged at the upper inner side and the lower inner side of the support rod 241. A blowing component 23 for blowing air is arranged on one side of the fixed seats 251 close to each other, so as to blow air to the cloth bag 21 when the cloth bag 21 is stretched and deformed, thereby blowing off the impurities adhering to the outer side of the cloth bag 21 due to filtration;

[0080] The moving component 25 further includes:

[0081] A fixed block 252 is fixedly arranged inside the fixed seat 251. The interior of the fixed seat 251 is hollow-designed. The side wall of the fixed block 252 is provided with a spread component 253 arranged in an annular array. The spread component 253 includes:

[0082] A fixed shell 2531 is fixedly arranged on the side wall of the fixed block 252 and extends outside the fixed seat 251. A fixed groove 2532 is opened on the inner wall of one end of the fixed shell 2531 close to the fixed block 252. A first electromagnet 2533 is fixedly arranged on the inner wall of the fixed groove 2532. A fixed rod 2535 extending outside the fixed shell 2531 is sleeved on the inner wall of the fixed groove 2532. A second electromagnet 2534 is fixedly arranged at one end of the fixed rod 2535 close to the first electromagnet 2533. The fixed shell 2531 and the second electromagnet 2534 are stopped and matched through the fixed groove 2532 to limit the separation of the fixed rod 2535 from the fixed shell 2531. One end of the fixed rod 2535 outside the fixed shell 2531 is fixedly connected to the inner side of the support rod 241.

[0083] In the specific implementation, the first electromagnet 2533 and the second electromagnet 2534 are energized, and the side where the first electromagnet 2533 and the second electromagnet 2534 are close to each other is the same pole, so as to generate repulsive force to drive the second electromagnet 2534 to move along the fixed groove 2532, thereby driving the fixed rod 2535 and the support rod 241 to move, so that the support rod 241 is separated from each other, thereby stretching the cloth bag 21 outward from the cloth bag 21, so that the gas blown out by the subsequent blowing component 23 is in contact with the smoke and dust, and the cleaning effect is improved. When the cleaning is completed, the first electromagnet 2533 and the second electromagnet 2534 are powered off, the repulsive force disappears, and the support rod 241 is reset under the restraint of the cloth bag 21 itself, so as not to affect the actual use of the cloth bag 21, and the side where the first electromagnet 2533 and the second electromagnet 2534 are close to each other can be different poles, so that the support rod 241 can be reset by suction;

[0084] The second electromagnet 2534 is limited by the fixing groove 2532 to limit the fixing rod 2535, so as to prevent the fixing rod 2535 from being separated from the fixing shell 2531, which is convenient for practical use;

[0085] In actual design, the outer wall fixed sleeve of the fixed shell 2531 can be provided with a heat insulation cover to prevent the heat in the smoke from affecting the actual use of the first electromagnet 2533 and the second electromagnet 2534. The threaded rod 231 can adopt a hollow design to facilitate the wiring of the first electromagnet 2533 and the second electromagnet 2534. The above are all existing technologies and will not be elaborated here.

[0086] See also Figure 7 , the blowing assembly 23 comprises:

[0087] The threaded rod 231 is rotatably disposed on one side of the fixing seat 251 close to each other. The side wall of the threaded rod 231 is threadedly connected to an air guide box, and a nozzle 232 is fixedly disposed at the exhaust end of the air guide box.

[0088] Guide rods are fixedly provided on one side of the fixing seat 251 close to each other and on both sides of the threaded rod 231. The side walls of the guide rods penetrate the air guide box. A guide hole for mounting the guide rods is provided on the top of the air guide box. When the threaded rod 231 rotates, the air guide box rises and falls under the limit of the guide rods, and the side walls of the guide rods are sealed with the inner walls of the guide holes.

[0089] In a specific implementation, when the moving assembly 25 drives the support rod 241 to move and stretch the cloth bag 21, the driving mechanism 5 drives the threaded rod 231 to rotate, so that the threaded rod 231 drives the air guide box to move vertically under the limit of the guide rod and the guide hole. At the same time, the air supply assembly supplies air into the air guide box, so that the nozzle 232 sprays the gas, so that after the cloth bag 21 is stretched and stretched, air is blown from the inside of the cloth bag 21 to the outside, so as to clean the smoke and dust attached to the outer surface of the cloth bag 21, so as to facilitate the long-term filtering use of the cloth bag 21;

[0090] The air guide box is limited by the guide rod and the guide hole, which facilitates the movement of the air guide box driven by the threaded rod 231. And the guide rod facilitates the connection and fixation of the upper and lower fixing seats 251 of the support rod 241, ensuring the stability of the fixing seat 251 and facilitating the subsequent rotation of the rotation assembly 26 driving the support assembly 24 and the moving assembly 25, etc.

[0091] Through holes for sleeving the threaded rod 231 are formed at the tops of the connecting block 222 and the mounting block 2291, and a driving mechanism 5 for driving the threaded rod 231 to rotate is arranged at the top of the threaded rod 231;

[0092] Please refer to Figure 2 、 Figure 4 and Figure 17 , the driving mechanism 5 includes:

[0093] The first gear 54 is fixedly sleeved on the top of the threaded rod 231 at the corner. Second gears 53 are fixedly sleeved on the tops of the threaded rods 231 along the X-axis direction of the threaded rod 231 at the corner. The first gear 54 meshes with the adjacent second gears 53, and the second gears 53 mesh one by one along the X-axis direction. Third gears 52 are fixedly sleeved on the tops of the threaded rods 231 along the Y-axis direction of the threaded rod 231 at the corner. The first gear 54 meshes with the adjacent third gears 52, and the third gears 52 mesh one by one along the Y-axis direction. Fourth gears 55 are fixedly sleeved on the tops of the remaining threaded rods 231. The third gear 52 meshes with the adjacent fourth gears 55, and the fourth gears 55 mesh one by one along the X-axis direction. The fourth gears 55 do not contact along the Y-axis direction;

[0094] The servo motor 51 is fixedly arranged on the outer wall of the box body 1, and the output shaft of the servo motor 51 is in transmission connection with the threaded rod 231 at the corner.

[0095] In specific implementation, since multiple cloth bags 21 are usually arranged at intervals, to clean multiple cloth bags 21 simultaneously, the servo motor 51 drives the first gear 54 to rotate. The first gear 54 drives the adjacent second gears 53 and third gears 52 to rotate. The second gears 53 and third gears 52 adjacent to the first gear 54 drive other second gears 53 and third gears 52 to rotate along the X-axis direction and the Y-axis direction respectively, and the third gear 52 drives the fourth gears 55 along the X-axis direction to rotate, so as to facilitate driving multiple threaded rods 231 arranged at intervals to rotate synchronously. And to make the air guide box rise or fall synchronously, the thread connection direction between the threaded rod 231 and the air guide box with different transmission directions by the first gear 54, the second gear 53, the third gear 52 and the fourth gear 55 can be adjusted, so that the air guide box rises or falls synchronously, that is, when the transmission directions of adjacent gears are opposite, the thread connection direction between the threaded rod 231 and the air guide box is adjusted to make the air guide box move synchronously, which is convenient for actual use;

[0096] The outer walls of the first gear 54, the second gear 53, the third gear 52 and the fourth gear 55 are all sleeved with a protective shell, the bottom of the protective shell is fixed to the top of the connecting block 222 to protect the first gear 54, the second gear 53, the third gear 52 and the fourth gear 55, and the protective shell is located at the meshing position of the gears to avoid affecting the meshing transmission;

[0097] The output shaft of the first servo motor 51 is fixed with a rotating shaft rotatably connected to the box body 1 through a coupling, and the side walls of the rotating shaft and the side walls of the threaded rod 231 at the end corners are fixedly sleeved with transmission gears, and the transmission gears are connected through a chain transmission, so that the servo motor 51 drives the first gear 54 and the threaded rod 231 at the end corner to rotate, and the side walls of the transmission gear and the chain are sleeved with a cover plate, which is fixed to the box body 1 to provide protection.

[0098] Example 2: Please refer to Figure 9 , Figure 10 and Figure 11 The technical solution of this embodiment is different from that of the first embodiment in that the top of the threaded rod 231 passes through the upper fixing seat 251 and extends to the top of the mounting plate 4. The top of the upper fixing seat 251 is provided with a rotating assembly 26 for driving the support rod 241 and the support block 242 to rotate, so as to clean the contact position between the support rod 241 and the cloth bag 21. The top of the rotating assembly 26 is provided with an installation assembly 22 for installing the mounting plate 4 and the cloth bag 21.

[0099] The installation assembly 22 includes:

[0100] The bracket 223 is fixedly arranged on the top of the mounting plate 4 and is located outside the mounting hole. A connecting block 222 is fixedly arranged on the inner side of the bracket 223. A mounting block 2291 is fixedly arranged on the bottom of the connecting block 222. A first pressing groove 227 extending to the outside of the mounting block 2291 is opened on the outer side of the top of the mounting block 2291. A first pressing ring 225 is sleeved on the inner wall of the first pressing groove 227. The center points of the mounting block 2291, the connecting block 222 and the mounting hole are on the same vertical line.

[0101] The mounting sleeve 229 is fixed on the top of the mounting plate 4 and is located between the mounting block 2291 and the bracket 223. The inner wall of the mounting sleeve 229 is provided with a second pressing groove 226. The inner wall of the second pressing groove 226 is sleeved with a second pressing ring 224. The inner wall diameter of the second pressing ring 224 is greater than the outer wall diameter of the first pressing ring 225.

[0102] The installation assembly 22 also includes:

[0103] The mounting cover 221 is threadedly connected to the outer wall of the mounting sleeve 229, and a vertically arranged sealing ring 228 is fixedly sleeved on the upper end of the outer wall of the mounting sleeve 229;

[0104] The mounting ring 2292 is fixedly arranged on the inner wall of the top of the mounting cover 221 to limit the first pressure ring 225 and the second pressure ring 224 after the mounting shell and the mounting sleeve 229 are tightened.

[0105] In specific implementation, after the cloth bag 21 is sleeved on the outer side of the support rod 241, the top opening of the cloth bag 21 is placed between the mounting block 2291 and the mounting sleeve 229 along the mounting hole. Then, the opening of the cloth bag 21 is bent inward, that is, the inner wall of the opening of the cloth bag 21 is in contact with the first pressure groove 227. Then, the first pressure ring 225 is embedded into the first pressure groove 227 to complete the primary limitation of the cloth bag 21. Then, the inner wall of the opening of the cloth bag 21 is turned outward so that the outer wall of the opening of the cloth bag 21 is in contact with the second pressure groove 226. Then, the second pressure ring 224 is embedded into the second pressure groove 226 to perform secondary limitation on the opening of the cloth bag 21. The cloth bag 21 is bent multiple times for installation to avoid leakage between the cloth bag 21 and the mounting hole. After the secondary limitation is completed, the mounting cover 221 and the mounting sleeve 229 are tightened. During the tightening, the mounting ring 2292 squeezes and fixes the first pressure ring 225 and the second pressure ring 224, so that the first pressure ring 225, the second pressure ring 224 and the cloth bag 21 are pressed tightly to improve the sealing performance. And the sealing performance is further improved by setting the sealing ring 228 to avoid the leakage of flue gas.

[0106] The bracket 223 and the connecting block 222 facilitate the fixation of the mounting block 2291, so as to facilitate the installation of the moving component 25, the supporting component 24, etc.

[0107] Please refer to Figure 12 and Figure 13 , the rotating component 26 includes:

[0108] The chute 264 is opened at the bottom of the mounting block 2291 and is designed as an incomplete ring shape, so that a baffle structure 265 is formed between the inner walls on both sides of the chute 264. A slider 261 is placed inside the chute 264, and the slider 261 rotates inside the chute 264. The bottom of the slider 261 is fixedly connected to the top of the upper fixed seat 251.

[0109] The third electromagnet 262 is fixedly arranged at one end of the slider 261. The fourth electromagnet 263 is fixedly arranged on the side of the baffle structure 265 close to the third electromagnet 262. A spring is fixedly arranged on the side of the baffle structure 265 away from the third electromagnet 262, and the end of the spring away from the baffle structure 265 is fixedly connected to the other end of the slider 261.

[0110] In specific implementation, the third electromagnet 262 and the fourth electromagnet 263 are energized, and the sides of the third electromagnet 262 and the fourth electromagnet 263 that are close to each other are of the same polar magnetic poles, so as to drive the slider 261 to squeeze the spring and rotate along the chute 264 through the repulsive force, thereby driving the fixed seat 251 located above to rotate, so as to drive the moving assembly 25, the support assembly 24, etc. to rotate, thereby adjusting the contact position between the support rod 241 and the cloth bag 21. After the contact position between the support rod 241 and the cloth bag 21 is adjusted, the cloth bag 21 is cleaned again by the moving assembly 25 and the air blowing assembly 23 to reduce the cleaning dead angle, thereby improving the cleaning effect. When the cleaning is completed, the third electromagnet 262 and the fourth electromagnet 263 can be powered off. Under the elastic action of the spring, the slider 261 is limited, and the sides of the third electromagnet 262 and the fourth electromagnet 263 that are close to each other can be of opposite polar magnetic poles, so as to drive the slider 261 to reset through the suction force.

[0111] Before adjusting the position of the support rod 241, the moving assembly 25 can be used to cancel the stretching of the support rod 241 on the cloth bag 21, so as to avoid driving the cloth bag 21 to deflect during rotation, thereby deforming the cloth bag 21 and avoiding affecting the actual use of the cloth bag 21.

[0112] Please refer to Figure 10 and Figure 11 A placement through groove 6 is opened at the top of the mounting block 2291. The placement through groove 6 at the top of the mounting block 2291 is located outside the chute 264 and inside the first pressing groove 227.

[0113] A gas supply mechanism 3 for supplying gas to the nozzle 232 is arranged at the top of the box body 1. The gas supply mechanism 3 usually supplies gas by arranging an air storage tank at the top of the box body 1, connecting the exhaust end of the air storage tank to a guide pipe for blowing. The gas supply mechanism 3 is a prior art and will not be elaborated here. In this application, the guide pipe is connected to the air guide box to supply gas to the nozzle 232. When the guide pipe supplies gas to the air guide box, the guide pipe can be arranged through the placement through groove 6. When arranging the guide pipe, the guide pipe needs to reserve the length for the air guide box to move along with the threaded rod 231 to avoid affecting the actual use, and the guide pipe can adopt a flexible pipe design for convenient actual use.

[0114] The embodiment of the present invention also provides a use method of a flue gas filtration and treatment device for a biomass burner. A flue gas filtration and treatment device for a biomass burner is adopted. The method includes the following steps:

[0115] S1: After the flue gas generated by the biomass burner enters the box body 1 through the air inlet pipe on one side of the box body 1, it is filtered through the cloth bags 21 arranged at intervals, so as to block the soot and impurities in the flue gas on the outer surface of the cloth bags 21. The filtered flue gas is discharged through the exhaust pipe on the other side of the box body 1 to complete the filtration of the flue gas.

[0116] S2: When a large amount of soot adheres to the outer surface of the cloth bag 21, through the cooperation of the moving component 25 and the air supply component, the moving component 25 drives the support component 24 to move, so that the cloth bag 21 is stretched outwards, causing the cloth bag 21 to deform. Immediately afterwards, the air supply component blows air outwards from inside the cloth bag 21, thereby cleaning the soot adhering to the outer surface of the cloth bag 21, so as to filter the flue gas for a long time. And by stretching the cloth bag 21 and then blowing air, the gas can better contact with soot and other impurities, which is convenient for cleaning the soot adhering to the surface of the cloth bag 21, improving the cleaning effect, and making the gas blow from inside the cloth bag 21 to outside the cloth bag 21 to prevent soot from entering the cloth bag 21;

[0117] After the moving component 25 and the air supply component complete one cleaning, the rotating component 26 drives the support component 24 to rotate, thereby adjusting the contact position between the support rod 241 and the cloth bag 21, avoiding that the original contact position between the support rod 241 and the cloth bag 21 cannot be cleaned, and reducing the dead angle of cleaning the cloth bag 21.

[0118] Meanwhile, the content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0119] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0120] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flue gas filtration and treatment device for a biomass burner, comprising a box body, a mounting plate fixedly spaced in the box body, and mounting holes spacedly opened at the top of the mounting plate, characterized in that, It further includes a filtering mechanism disposed in the mounting hole for filtering the flue gas generated by the biomass burner. The filtering mechanism includes: A cloth bag is disposed at the bottom of the mounting plate. A support assembly for supporting the cloth bag from the inside of the cloth bag is provided at the bottom of the mounting plate. The support assembly includes: Support blocks. An annular array of support rods is sleeved on the side walls of the support blocks. Moving assemblies for driving the support rods to move are provided at both the upper inner end and the lower inner end of the support rods to stretch the cloth bag and cause deformation. The moving assemblies include: Fixed seats are provided at both the upper inner end and the lower inner end of the support rods. A blowing assembly for blowing air is provided on one side of the fixed seats close to each other to blow air on the cloth bag when the cloth bag is stretched and deformed, so as to blow off the impurities adhering to the outer side of the cloth bag due to filtration. The blowing assembly includes: A threaded rod is rotatably disposed on one side of the fixed seats close to each other. A guide air box is threadedly connected to the side wall of the threaded rod. Nozzles are fixedly provided at the exhaust ends of the guide air box; The moving assembly further includes: Fixed blocks are fixedly disposed inside the fixed seats. The inside of the fixed seats is designed to be hollow. An annular array of expanding assemblies is provided on the side walls of the fixed blocks. The expanding assemblies include: Fixed shells are fixedly disposed on the side walls of the fixed blocks and extend outside the fixed seats. A fixed groove is formed in the inner wall of one end of the fixed shell close to the fixed block. A first electromagnet is fixedly provided on the inner wall of the fixed groove. A fixed rod extending outside the fixed shell is sleeved on the inner wall of the fixed groove. A second electromagnet is fixedly provided at one end of the fixed rod close to the first electromagnet. The fixed shell is in a stop fit with the second electromagnet through the fixed groove to limit the separation of the fixed rod from the fixed shell. One end of the fixed rod outside the fixed shell is fixedly connected to the inner side of the support rod. Guide rods are fixedly provided on both sides of the threaded rod on one side of the fixed seats close to each other. The side walls of the guide rods penetrate through the guide air box. A guide hole for sleeving the guide rods is formed in the top of the guide air box. When the threaded rod rotates, the guide air box moves up and down under the limitation of the guide rods. The side walls of the guide rods are hermetically provided with the inner walls of the guide holes; The top of the threaded rod penetrates through the upper fixed seat and extends to the top of the mounting plate. A rotating assembly for driving the support rods and the support blocks to rotate is provided on the top of the upper fixed seat to clean the contact position between the support rods and the cloth bag. An installation assembly for installing the mounting plate and the cloth bag is provided on the top of the rotating assembly; The installation assembly includes: A bracket is fixedly disposed on the top of the mounting plate and outside the mounting hole. A connecting block is fixedly provided inside the bracket. An installation block is fixedly provided at the bottom of the connecting block. A first pressing groove extending outside the installation block is formed in the outer side of the top of the installation block. A first pressing ring is sleeved on the inner wall of the first pressing groove. The centers of the installation block, the connecting block, and the mounting hole are on the same vertical line; An installation sleeve is fixedly disposed on the top of the mounting plate and between the installation block and the bracket. A second pressing groove is formed in the inner wall of the installation sleeve. A second pressing ring is sleeved on the inner wall of the second pressing groove. The inner diameter of the inner wall of the second pressing ring is larger than the outer diameter of the outer wall of the first pressing ring; The rotating assembly includes: The chute is opened at the bottom of the mounting block and is designed in an incomplete circular shape, so as to form a baffle structure between the inner walls on both sides of the chute. A slider is placed inside the chute, and the slider rotates within the chute. The bottom of the slider is fixedly connected to the top of the fixed seat located above. The third electromagnet is fixedly arranged at one end of the slider. A fourth electromagnet is fixedly arranged on the side of the baffle structure close to the third electromagnet. A spring is fixedly arranged on the side of the baffle structure away from the third electromagnet, and the end of the spring away from the baffle structure is fixedly connected to the other end of the slider. A gas supply mechanism for supplying gas to the nozzle is arranged at the top of the box body.

2. The flue gas filtration and treatment device for a biomass burner according to claim 1, characterized in that The mounting assembly further includes: The mounting cover is threadedly connected to the outer wall of the mounting sleeve, and a vertically arranged sealing ring is fixedly sleeved on the upper end of the outer wall of the mounting sleeve. The mounting ring is fixedly arranged on the inner wall of the top of the mounting cover to limit the first pressing ring and the second pressing ring after the mounting shell and the mounting sleeve are screwed tightly.

3. The flue gas filtration and treatment device for a biomass burner according to claim 1, characterized in that, Through holes for sleeving the threaded rod are opened at the tops of both the connecting block and the mounting block. A driving mechanism for driving the threaded rod to rotate is arranged at the top of the threaded rod. The driving mechanism includes: The first gear is fixedly sleeved on the top of the threaded rod at the corner. Second gears are fixedly sleeved on the tops of the threaded rods along the X-axis direction of the threaded rod at the corner. The first gear meshes with the adjacent second gears, and the second gears mesh with each other one by one along the X-axis direction. Third gears are fixedly sleeved on the tops of the threaded rods along the Y-axis direction of the threaded rod at the corner. The first gear meshes with the adjacent third gears, and the third gears mesh with each other one by one along the Y-axis direction. Fourth gears are fixedly sleeved on the tops of the remaining threaded rods. The third gear meshes with the adjacent fourth gears, and the fourth gears mesh with each other one by one along the X-axis direction. The fourth gears do not contact each other along the Y-axis direction. The servo motor is fixedly arranged on the outer wall of the box body, and the output shaft of the servo motor is in transmission connection with the threaded rod at the corner.

4. A flue gas filtration and treatment device for a biomass burner according to claim 3, characterized in that, A placement through groove is opened at the top of the mounting block. The placement through groove at the top of the mounting block is located outside the chute and inside the first pressing groove.

5. A flue gas filtration and treatment device for a biomass burner according to claim 1, characterized in that, The lower end of the support block is designed in a hemispherical shape to fit the inner wall bottom of the cloth bag. The lower ends of the support rods are all designed in an arc shape and are all in contact with the lower side wall of the support block. A support groove for sleeving the support rod is opened on the side wall of the support block. The inside of the support block is designed to be hollow, and air guide holes are opened at intervals on the top and side walls of the support block to blow off the impurities at the bottom of the cloth bag.

6. A method for using a flue gas filtration and treatment device for a biomass burner, characterized in that, Using a flue gas filtration and treatment device for a biomass burner according to any one of claims 1-5, the method includes the following steps: S1: After the flue gas generated by the biomass burner enters the box body, it is filtered through the cloth bags arranged at intervals to block the soot and impurities in the flue gas on the outer surface of the cloth bags. S2: When a large amount of soot adheres to the outer surface of the cloth bag, the soot adhering to the outer surface of the cloth bag is cleaned by the cooperation of the moving assembly and the gas supply mechanism to filter the flue gas for a long time.

Images