Biomass boiler flue gas denitration and dust removal integrated equipment

Abstract

The present application relates to the technical fields of boiler flue gas treatment, in particular to a biomass boiler flue gas denitration and dust removal integrated equipment, which comprises a treatment channel, a dust removal mechanism and a denitration mist shower nozzle, an annular seat is integrally formed on the outer side wall of the treatment channel, a support picture is fixedly installed at the lower side end of the annular seat, a partition plate is arranged at the middle part of the treatment channel, the inner cavity of the treatment channel is divided into a dust removal cavity and a denitration cavity by the partition plate, and a through hole is formed at the center position of the partition plate; a dust removal rod movable hole is formed at the bottom of the clearance groove of the mounting seat, a dust removal rod is arranged at the lower side of the adjusting seat, and an annular atomizing nozzle is arranged at the position of the dust removal rod movable hole, so that the surface of the dust removal rod is wetted by the annular atomizing nozzle, the dust in the flowing air is adhered and condensed on the dust removal rod, the use of dust removal liquid can be reduced while dust removal is realized, and the liquid content of the collected dust can be reduced, thereby facilitating subsequent treatment of the dust.

Description

Technical Field

[0001] This invention relates to the technical field of boiler flue gas treatment, specifically to an integrated equipment for denitrification and dust removal of biomass boiler flue gas. Background Technology

[0002] Boiler flue gas is a gaseous mixture produced after boiler fuel combustion. Its composition is complex, containing both harmless inert gases and pollutants harmful to the environment and human health. Therefore, boiler flue gas needs to be treated before emission, and the core objective of flue gas treatment is to remove particulate matter, SO2, and NO. x Including heavy metals, to ensure that they meet national emission standards;

[0003] A Chinese patent document with publication number CN106000045A discloses a deep dust removal, desulfurization, and denitrification equipment for boiler flue gas. The design includes a tower body, with a flue gas inlet located at the lower part of the tower's side wall and a flue gas outlet located at the top of the tower body. Inside the tower body are a flue gas collection and dust removal device, a dust-absorbing and condensing agent spray nozzle, a cyclone dust removal and demisting device, a desulfurization and denitrification agent spray nozzle, a cyclone demisting device, and a flow collection device. Specifically: the flue gas collection and dust removal device is located above the flue gas inlet; the dust-absorbing and condensing agent spray nozzle is located above the flue gas collection and dust removal device; the cyclone dust removal and demisting device is located above the dust-absorbing and condensing agent spray nozzle; the desulfurization and denitrification agent spray nozzle is located above the cyclone dust removal and demisting device; the cyclone demisting device is located above the cyclone dust removal and demisting device and at the flue gas outlet; and the flow collection device is located below the flue gas inlet and at the bottom of the tower body.

[0004] However, the above-mentioned solutions remove particulate matter from flue gas by spraying chemical solutions, which consumes a large amount of liquid, resulting in high dust removal costs. Furthermore, the chemical solutions can cause secondary pollution, leading to high subsequent treatment costs. Therefore, this invention proposes an integrated biomass boiler flue gas denitrification and dust removal device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated denitrification and dust removal device for biomass boiler flue gas, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated biomass boiler flue gas denitrification and dust removal device, comprising:

[0007] The processing channel has an annular seat integrally formed on its outer side wall. A support is fixedly installed on the lower end of the annular seat. A partition plate is provided in the middle of the processing channel, which divides the inner cavity of the processing channel into a dust removal chamber and a denitrification chamber. A through hole is opened at the center of the partition plate. A flue gas inlet is provided at the lower end of the side wall of the dust removal chamber. The flue gas inlet is connected to the exhaust port of the boiler through a flue. A flue gas outlet is provided at the upper end of the side wall of the denitrification chamber. A lower sealing plate is detachably installed on the lower end of the processing channel, and an upper sealing plate is detachably installed on the upper end of the processing channel.

[0008] A dust removal mechanism is provided, which is located in a dust removal chamber. A primary liquid delivery pipe is fixedly installed on the side wall of the denitrification chamber. The primary liquid delivery pipe is connected to a dust removal liquid supply device and is used to supply liquid to the dust removal mechanism.

[0009] The denitrification mist spray nozzle is fixed on the lower surface of the upper sealing plate, and the secondary liquid inlet of the denitrification mist spray nozzle is connected to the denitrification liquid supply equipment through a secondary liquid delivery pipe. The side wall of the denitrification chamber is provided with a drain port near the bottom, and the drain port is connected to the waste liquid pool through a drain pipe.

[0010] Preferably, the dust removal mechanism includes a flue gas duct, a mounting base, and an adjusting base. The lower end of the flue gas duct is sealed and fixed to the through hole in the partition plate by a connector. The mounting base is sleeved on the flue gas duct and positioned on the flue gas duct by a primary bolt. The upper surface of the mounting base has a clearance groove. The adjusting base is a rotating structure with an L-shaped cross-section, and both the inner and outer sides of the adjusting base are movably sleeved on the mounting base. The adjusting base and the mounting base are correspondingly arranged, and multiple layers of the adjusting base and the mounting base are evenly spaced. Filter holes are provided on the flue gas duct at positions offset from the adjusting base and the mounting base.

[0011] Preferably, a guide rod hole is provided at the center of the mounting base, and the guide rod hole is evenly arranged in a circle. A guide rod is fixedly welded to the lower side of the adjusting base, and the guide rod is movably disposed in the guide rod hole. A spring groove is provided at the upper end of the guide rod hole, and a return spring is sleeved on the guide rod. The lower end of the return spring extends into the spring groove. A dust removal rod movable hole is provided at the bottom of the clearance groove, and multiple sets of dust removal rod movable holes are evenly arranged. A dust removal rod is fixedly installed on the lower side of the adjusting base, and the dust removal rod is movably disposed in the dust removal rod movable hole.

[0012] Preferably, annular atomizing nozzles are installed at the bottom of the trough where the dust removal rod's movable hole is located. The dust removal rod passes through the center of the annular atomizing nozzles. The annular atomizing nozzles are arranged in multiple layers in a ring, and the annular atomizing nozzles in the same layer are connected by secondary pipes. The secondary pipes are connected by a main pipe. A flow channel is provided on the mounting base. A liquid supply pipe is fixedly connected to the inner wall of the flue gas passage by a connecting rod. The lower end of the liquid supply pipe is sealed. A liquid supply port is provided on the flue gas passage. The inner end of the liquid supply port is connected to the liquid supply pipe by a connecting pipe. The upper end of the liquid supply pipe is connected to the inner end of the primary liquid delivery pipe.

[0013] Preferably, during actual installation, the inner end of the flow channel and the outer end of the liquid supply port are connected, a sealing groove is provided at the outer port of the liquid supply port, an annular sealing gasket is embedded in the sealing groove, and the annular sealing gasket is in a compressed state after the mounting base is positioned.

[0014] Preferably, a telescopic electric cylinder is fixedly installed on the bottom side wall of the flue gas duct by a positioning clamp, and the outer end of the multi-layer adjustment seat is connected by a connecting frame. The connecting frame is L-shaped and is correspondingly arranged with the telescopic electric cylinder. The connecting frame is fixedly connected to the telescopic part of the telescopic electric cylinder.

[0015] Preferably, after the telescopic electric cylinder moves forward, the lower edge of the adjusting seat is flush with the lower end of the mounting seat. After the telescopic electric cylinder returns, the upper side of the mounting seat is abutted against the top of the inner side of the adjusting seat. During the telescopic movement of the electric cylinder, the lower end of the dust removal rod is always abutted against the upper surface of the lower adjusting seat.

[0016] Preferably, the dust removal rod is a water-absorbing ceramic rod. After the telescopic electric cylinder moves forward, the annular atomizing nozzle performs atomization spraying. After the telescopic electric cylinder returns to its original position, the annular atomizing nozzle stops atomizing spraying.

[0017] Preferably, the denitrification mist spray nozzle is an annular nozzle with the nozzle orifice facing vertically. The sidewall of the denitrification chamber is fixedly connected to a flow guide seat via an annular plate. The flow guide seat has a funnel-shaped structure with the opening facing upwards. The opening edge of the flow guide seat is 2 cm away from the upper sealing plate and the sidewall of the denitrification chamber. The vertical projection of the denitrification mist spray nozzle is located on the inclined surface of the flow guide seat. The flue gas outlet is higher than the annular plate.

[0018] Preferably, the upper end of the flue gas passage is higher than the partition plate, and the lower end of the drain port is flush with the upper surface of the partition plate.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. By setting up an integrated biomass boiler flue gas denitrification and dust removal equipment consisting of a processing channel, a dust removal mechanism, and denitrification mist spray nozzles, and by setting the dust removal mechanism to consist of a flue gas channel, a mounting base, and an adjusting base, and by opening a dust removal rod movable hole at the bottom of the clearance groove of the mounting base, and setting a dust removal rod on the lower side of the adjusting base, and setting an annular atomizing nozzle at the position of the dust removal rod movable hole, the surface of the dust removal rod is wetted by the annular atomizing nozzle, so that the dust in the flowing air adheres and condenses on the dust removal rod. In this way, while achieving dust removal, the use of dust removal liquid can be reduced, and the liquid content of the collected dust can be reduced, thus facilitating the subsequent treatment of the dust.

[0021] 2. A telescopic electric cylinder is installed on the bottom side wall of the flue gas duct, and a multi-layer adjusting seat is connected through a connecting frame. The telescopic electric cylinder drives the adjusting seat to move up and down, thereby causing the dust removal rod on the adjusting seat to move up and down. During this process, the dust adhering to the dust removal rod is automatically detached, thus periodically cleaning the dust on the dust removal rod. When the telescopic electric cylinder drives the adjusting seat to move up and down, it will create a certain shaking effect, which will allow the dust accumulation on the adjusting seat to slide down better. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a half-sectional view of the present invention in the horizontal direction;

[0024] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point B;

[0026] Figure 5 This is a half-sectional view of the present invention in the longitudinal direction;

[0027] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point C;

[0028] Figure 7 This is a schematic diagram of the dust removal mechanism of the present invention;

[0029] Figure 8 This is a top side view of the mounting base of the present invention;

[0030] Figure 9 This is a schematic diagram of the atomizing nozzle distribution of the present invention;

[0031] Figure 10This is a lower side view of the mounting base of the present invention;

[0032] Figure 11 for Figure 10 Enlarged schematic diagram of the structure at point D;

[0033] Figure 12 This is a schematic diagram of the adjusting seat structure of the present invention;

[0034] Figure 13 for Figure 12 Enlarged schematic diagram of the structure at point E in the middle.

[0035] In the diagram: 1. Processing channel; 2. Dust removal mechanism; 3. Denitrification mist spray nozzle; 4. Annular seat; 5. Support. Figure 5 6. Divider plate; 7. Flue gas inlet; 8. Flue gas outlet; 9. Lower sealing plate; 10. Upper sealing plate; 11. Primary liquid delivery pipe; 12. Secondary liquid inlet; 13. Liquid outlet; 14. Flue gas passage; 15. Mounting seat; 16. Adjusting seat; 17. Primary bolt; 18. Void relief groove; 19. Guide rod hole; 20. Spring groove; 21. Guide rod; 22. Return spring; 23. Dust removal rod; 24. Annular atomizing nozzle; 25. Secondary pipe; 26. Main pipe; 27. Flow channel; 28. Connecting rod; 29. ​​Liquid supply pipe; 30. Liquid supply port; 31. Connecting pipe; 32. Connecting frame; 33. Telescopic electric cylinder; 34. Dust removal rod movable hole; 35. Annular sealing gasket; 36. Annular plate; 37. Flow guide seat; 38. Filter hole. Detailed Implementation

[0036] 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.

[0037] Please see Figures 1-13 The present invention provides the following three preferred embodiments:

[0038] Example 1: An integrated denitrification and dust removal device for biomass boiler flue gas, comprising a treatment channel 1, a dust removal mechanism 2, and a denitrification mist spray nozzle 3. An annular seat 4 is integrally formed on the outer wall of the treatment channel 1, and a support is fixedly installed on the lower end of the annular seat 4. Figure 5A partition plate 6 is provided in the middle of the processing channel 1, dividing the inner cavity of the processing channel 1 into a dust removal chamber and a denitrification chamber. A through hole is provided in the center of the partition plate 6. A flue gas inlet 7 is provided at the lower end of the side wall of the dust removal chamber, and the flue gas inlet 7 is connected to the boiler exhaust port through a flue. A flue gas outlet 8 is provided at the upper end of the side wall of the denitrification chamber. A lower sealing plate 9 is detachably installed at the lower end of the processing channel 1, and an upper sealing plate 10 is detachably installed at the upper end of the processing channel 1. The dust collector... The structure 2 is installed in the dust removal chamber. A primary liquid delivery pipe 11 is fixedly installed on the side wall of the denitrification chamber. The primary liquid delivery pipe 11 is connected to the dust removal liquid supply equipment and is used to supply liquid to the dust removal structure 2. The denitrification mist spray nozzle 3 is fixed on the lower surface of the upper sealing plate 10. The secondary liquid inlet 12 on the denitrification mist spray nozzle 3 is connected to the denitrification liquid supply equipment through the secondary liquid delivery pipe. A drain outlet 13 is provided at the bottom of the side wall of the denitrification chamber. The drain outlet 13 is connected to the waste liquid pool through the drain pipe.

[0039] The dust removal mechanism 2 includes a flue gas passage 14, a mounting base 15, and an adjusting base 16. The lower end of the flue gas passage 14 is sealed and fixed to the through hole on the partition plate 6 by a connector. The mounting base 15 is sleeved on the flue gas passage 14 and positioned on the flue gas passage 14 by a primary bolt 17. The upper surface of the mounting base 15 has a clearance groove 18. The adjusting base 16 is a rotating body structure with an L-shaped cross section, and both the inner and outer sides of the adjusting base 16 are movably sleeved on the mounting base 15. The adjusting base 16 and the mounting base 15 are correspondingly arranged, and multiple layers of the adjusting base 16 and the mounting base 15 are arranged at equal intervals. Filter holes 38 are opened on the flue gas passage 14 at positions offset from the adjusting base 16 and the mounting base 15.

[0040] The mounting base 15 has a guide rod hole 19 at its center, and the guide rod hole 19 is evenly arranged in a circle. A guide rod 21 is fixedly welded to the lower side of the adjusting base 16. The guide rod 21 is movably disposed in the guide rod hole 19. A spring groove 20 is provided at the upper end of the guide rod hole 19. A return spring 22 is sleeved on the guide rod 21. The lower end of the return spring 22 extends into the spring groove 20. A dust removal rod movable hole 34 is provided at the bottom of the clearance groove 18. Multiple sets of dust removal rod movable holes 34 are evenly arranged. A dust removal rod 23 is fixedly installed on the lower side of the adjusting base 16. The dust removal rod 23 is movably disposed in the dust removal rod movable hole 34.

[0041] The bottom of the air-proof groove 18 is equipped with annular atomizing nozzles 24 at the positions of the dust removal rod movable holes 34. The dust removal rod 23 passes through the center of the annular atomizing nozzles 24. The annular atomizing nozzles 24 are arranged in multiple layers in a ring, and the annular atomizing nozzles 24 in the same layer are connected by secondary pipes 25. The secondary pipes 25 are connected by main pipes 26. The mounting base 15 has a flow channel 27. The inner wall of the flue gas channel 14 is fixedly connected to a liquid supply pipe 29 by a connecting rod 28. The lower end of the liquid supply pipe 29 is sealed. The flue gas channel 14 has a liquid supply port 30. The inner end of the liquid supply port 30 is connected to the liquid supply pipe 29 by a connecting pipe 31. The upper end of the liquid supply pipe 29 is connected to the inner end of the primary liquid delivery pipe 11.

[0042] During actual installation, the inner end of the flow channel 27 of the mounting base 15 is aligned with the outer end of the liquid supply port 30. This is achieved by installing an integrated biomass boiler flue gas denitrification and dust removal device consisting of a processing channel 1, a dust removal mechanism 2, and denitrification mist nozzles 3. The dust removal mechanism 2 is configured as a flue gas channel 14, a mounting base 15, and an adjusting seat 16. A dust removal rod movable hole 34 is opened at the bottom of the clearance groove 18 of the mounting base 15, and a dust removal rod 23 is installed on the lower side of the adjusting seat 16. An annular atomizing nozzle 24 is installed at the position of the dust removal rod movable hole 34, thereby achieving dust removal through the annular atomizing nozzle 24. The atomizing nozzle 24 wets the surface of the dust removal rod 23, causing dust in the flowing air to adhere and condense on the dust removal rod 23. This reduces the use of dust removal liquid while achieving dust removal, and also reduces the liquid content of the collected dust, thus facilitating subsequent dust processing. A sealing groove is provided at the outer port of the liquid supply port 30, and an annular sealing gasket 35 is embedded in the sealing groove. After the mounting base 15 is positioned, the annular sealing gasket 35 is in a compressed state, which ensures the sealing effect at the docking position.

[0043] Example 2: Based on Example 1, a telescopic electric cylinder 33 is fixedly installed on the bottom side wall of the flue gas passage 14 by a positioning clamp, and the outer end of the multi-layer adjustment seat 16 is connected by a connecting frame 32. The connecting frame 32 is L-shaped and is correspondingly arranged with the telescopic electric cylinder 33. The connecting frame 32 is fixedly connected to the telescopic part of the telescopic electric cylinder 33.

[0044] After the telescopic electric cylinder 33 moves forward, the lower edge of the adjusting seat 16 is flush with the lower end of the mounting seat 15. After the telescopic electric cylinder 33 returns, the upper side of the mounting seat 15 abuts against the top of the inner side of the adjusting seat 16. During the telescopic movement of the telescopic electric cylinder 33, the lower end of the dust removal rod 23 is always abutted against the upper surface of the lower adjusting seat 16. The telescopic electric cylinder 33 is installed on the bottom side wall of the flue gas channel 14 and connected to the multi-layer adjusting seats 16 through the connecting frame 32. The telescopic electric cylinder 33 drives the adjusting seat 16 to move up and down, thereby driving the dust removal rod 23 on the adjusting seat 16 to move up and down. During this process, the dust adhering to the dust removal rod 23 is automatically detached, thus periodically cleaning the dust on the dust removal rod 23. When the telescopic electric cylinder 33 drives the adjusting seat 16 to move up and down, it will create a certain shaking effect, which will allow the dust accumulation on the adjusting seat 16 to slide down better.

[0045] The dust removal rod 23 is a water-absorbing ceramic rod. The water-absorbing ceramic material of the dust removal rod 23 can ensure that a small amount of water is evenly attached to the surface of the dust removal rod 23, thereby ensuring the adsorption effect of dust. After the telescopic electric cylinder 33 moves forward, the annular atomizing nozzle 24 performs atomization spraying. After the telescopic electric cylinder 33 returns, the annular atomizing nozzle 24 stops atomizing spraying. The intermittent operation of the annular atomizing nozzle 24 can effectively control the moisture content of the dust removal rod 23.

[0046] Example 3: Based on Example 2, the denitrification mist nozzle 3 is an annular nozzle with its nozzles facing vertically. The sidewall of the denitrification chamber is fixedly connected to a guide seat 37 via an annular plate 36. The guide seat 37 has a funnel-shaped structure with its opening facing upwards. The opening edge of the guide seat 37 is 2 cm away from the upper sealing plate 10 and the sidewall of the denitrification chamber. The vertical projection of the denitrification mist nozzle 3 is located on the inclined surface of the guide seat 37. The flue gas outlet 8 is higher than the annular plate 36. The funnel-shaped guide seat 37 allows the gas to flow from the center to the surrounding area, passing directly below the denitrification mist nozzle 3 during this process. This ensures that the flue gas can be fully treated by the denitrification liquid, thereby effectively ensuring the denitrification effect of the flue gas.

[0047] The upper end of the flue gas passage 14 is higher than the partition plate 6, and the lower end of the drain port 13 is flush with the upper surface of the partition plate 6.

[0048] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. An integrated denitrification and dust removal device for biomass boiler flue gas, characterized in that: include: The processing channel (1) has an annular seat (4) integrally formed on the outer side wall of the processing channel (1). A support (5) is fixedly installed on the lower end of the annular seat (4). A partition plate (6) is provided in the middle of the processing channel (1). The partition plate (6) divides the inner cavity of the processing channel (1) into a dust removal chamber and a denitrification chamber. A through hole is opened in the center of the partition plate (6). A flue gas inlet (7) is provided at the lower end of the side wall of the dust removal chamber. The flue gas inlet (7) is connected to the exhaust port of the boiler through a flue. A flue gas outlet (8) is provided at the upper end of the side wall of the denitrification chamber. A lower sealing plate (9) is detachably installed on the lower end of the processing channel (1). An upper sealing plate (10) is detachably installed on the upper end of the processing channel (1). Dust removal mechanism (2), the dust removal mechanism (2) is set in the dust removal chamber, a primary liquid delivery pipe (11) is fixedly installed on the side wall of the denitrification chamber, the primary liquid delivery pipe (11) is connected to the dust removal liquid supply equipment, and the primary liquid delivery pipe (11) is used to supply liquid to the dust removal mechanism (2); The denitrification mist spray nozzle (3) is fixed on the lower surface of the upper sealing plate (10), and the secondary liquid inlet (12) on the denitrification mist spray nozzle (3) is connected to the denitrification liquid supply equipment through the secondary liquid delivery pipe. The side wall of the denitrification chamber is provided with a drain port (13) near the bottom, and the drain port (13) is connected to the waste liquid pool through the drain pipe. The dust removal mechanism (2) includes a flue gas passage (14), a mounting base (15), and an adjusting base (16). The lower end of the flue gas passage (14) is sealed, and the flue gas passage (14) is fixed to the through hole on the partition plate (6) by a connector. The mounting base (15) is sleeved on the flue gas passage (14), and the mounting base (15) is positioned on the flue gas passage (14) by a first-level bolt (17). The upper surface of the mounting base (15) is provided with a clearance groove (18). The adjusting base (16) is a rotating body structure with an L-shaped cross section, and the inner and outer sides of the adjusting base (16) are movably sleeved on the mounting base (15). The adjusting base (16) and the mounting base (15) are correspondingly arranged, and the adjusting base (16) and the mounting base (15) are provided with multiple layers at equal intervals. The flue gas passage (14) is provided with filter holes (38) at a position offset from the adjusting base (16) and the mounting base (15). The mounting base (15) has a guide rod hole (19) at its center. The guide rod hole (19) is evenly arranged in a circle. The lower side of the adjusting base (16) is fixedly welded with a guide rod (21). The guide rod (21) is movably arranged in the guide rod hole (19). The upper end of the guide rod hole (19) is provided with a spring groove (20). A return spring (22) is sleeved on the guide rod (21). The lower end of the return spring (22) extends into the spring groove (20). The bottom of the clearance groove (18) is provided with a dust removal rod movable hole (34). Multiple sets of dust removal rod movable holes (34) are evenly arranged. The lower side of the adjusting base (16) is fixedly installed with a dust removal rod (23). The dust removal rod (23) is movably arranged in the dust removal rod movable hole (34). The bottom of the clearance groove (18) is equipped with annular atomizing nozzles (24) at the position of the dust removal rod movable hole (34). The dust removal rod (23) passes through the center of the annular atomizing nozzles (24). The annular atomizing nozzles (24) are arranged in a ring with multiple layers, and the annular atomizing nozzles (24) in the same layer are connected by secondary pipes (25). The secondary pipes (25) are connected by main pipes (26). The mounting base (15) has an opening A flow channel (27) is provided. A liquid supply pipe (29) is fixedly connected to the inner wall of the flue gas channel (14) by a connecting rod (28). The lower end of the liquid supply pipe (29) is sealed. A liquid supply port (30) is provided on the flue gas channel (14). The inner end of the liquid supply port (30) is connected to the liquid supply pipe (29) by a connecting pipe (31). The upper end of the liquid supply pipe (29) is connected to the inner end of the primary liquid delivery pipe (11). A telescopic electric cylinder (33) is fixedly installed on the bottom side wall of the flue gas passage (14) by a positioning clamp, and the outer end of the multi-layer adjustment seat (16) is connected by a connecting frame (32). The connecting frame (32) is L-shaped and is correspondingly set with the telescopic electric cylinder (33). The connecting frame (32) is fixedly connected with the telescopic part of the telescopic electric cylinder (33). After the telescopic electric cylinder (33) moves forward, the lower edge of the adjusting seat (16) is flush with the lower end of the mounting seat (15). After the telescopic electric cylinder (33) returns, the upper side of the mounting seat (15) is close to the top of the inner side of the adjusting seat (16). During the telescopic movement of the telescopic electric cylinder (33), the lower end of the dust removal rod (23) is always close to the upper surface of the lower adjusting seat (16). The dust removal rod (23) is a water-absorbing ceramic rod. After the telescopic electric cylinder (33) moves forward, the annular atomizing nozzle (24) performs atomization spraying. After the telescopic electric cylinder (33) returns, the annular atomizing nozzle (24) stops atomizing spraying.

2. The integrated biomass boiler flue gas denitrification and dust removal equipment according to claim 1, characterized in that: When the mounting base (15) is actually installed, the inner end of the flow channel (27) is connected to the outer end of the liquid supply port (30). A sealing groove is provided at the outer port of the liquid supply port (30). An annular sealing gasket (35) is embedded in the sealing groove. After the mounting base (15) is positioned, the annular sealing gasket (35) is in a compressed state.

3. The integrated denitrification and dust removal equipment for biomass boiler flue gas according to claim 1, characterized in that: The denitrification mist spray nozzle (3) is an annular nozzle, and the nozzle holes of the annular nozzle are set vertically. The side wall of the denitrification chamber is fixedly connected to a guide seat (37) through an annular plate (36). The guide seat (37) has a trumpet-shaped structure with the opening facing the direction. The opening edge of the guide seat (37) is two centimeters away from the upper sealing plate (10) and the side wall of the denitrification chamber. The vertical projection of the denitrification mist spray nozzle (3) is located on the inclined surface of the guide seat (37). The flue gas outlet (8) is higher than the annular plate (36).

4. The integrated denitrification and dust removal equipment for biomass boiler flue gas according to claim 3, characterized in that: The upper end of the flue gas passage (14) is higher than the partition plate (6), and the lower end of the drain port (13) is flush with the upper surface of the partition plate (6).

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