Denitration and dust removal integrated equipment for biomass boiler

Abstract

The utility model discloses denitration and dust removal integrated equipment for a biomass boiler, which belongs to the technical field of waste gas treatment of the biomass boiler and comprises a base, a vertical plate is fixedly mounted on the upper surface of the base, a treatment box is fixedly mounted at the top end of the vertical plate, and a plurality of branch conveying pipes are mounted on the treatment box in a penetrating manner. A plurality of spray heads are fixedly mounted on the outer surfaces of the branch conveying pipes; the treatment box body is matched with the filter screen, the denitration agent input pipe and the gas input pipe for use, a denitration agent input by the denitration agent input pipe is conveyed to the spray heads through the main conveying pipe and the branch conveying pipes to be sprayed out, waste gas is conveyed through the gas input pipe and then is sprayed out through the gas outlet pipe, and dust particles in gas are filtered out through the filter screen firstly; the denitration and dust removal are integrally carried out, the operation efficiency is effectively improved, peculiar smell and wet moisture can be effectively removed when the gas subjected to denitration and dust removal is discharged through the activated carbon adsorption net and the drying agent net plate, and a good environment is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of biomass boiler exhaust gas treatment technology, specifically relating to an integrated denitrification and dust removal device for biomass boilers. Background Technology

[0002] Biomass boilers are a type of boiler that uses biomass energy as fuel. They are classified into biomass steam boilers, biomass hot water boilers, biomass hot air furnaces, biomass thermal oil furnaces, vertical biomass boilers, and horizontal biomass boilers.

[0003] Biomass boilers can be classified as follows: horizontal biomass boilers, vertical biomass boilers, biomass gas-fired thermal oil boilers, biomass steam boilers, biomass hot water boilers, and biomass thermal oil boilers.

[0004] During the operation of biomass boilers, waste gas is generated. The nitrogen dust component mixed in the waste gas needs to be denitrified and removed. Existing denitrification and dust removal is carried out in separate units, requiring two consecutive steps of denitrification equipment and dust removal equipment. This is slow and the filter screen is prone to clogging during the dust removal process. Therefore, we propose an integrated denitrification and dust removal equipment for biomass boilers. Utility Model Content

[0005] The purpose of this utility model is to provide an integrated denitrification and dust removal equipment for biomass boilers, in order to solve the problems mentioned in the background art, which are that the existing denitrification and dust removal are carried out in separate steps, requiring two consecutive steps of denitrification equipment and dust removal equipment, resulting in slow operation efficiency and easy clogging of the filter screen during the dust removal process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated denitrification and dust removal equipment for biomass boilers, comprising a base, a vertical plate fixedly installed on the upper surface of the base, a treatment chamber fixedly installed at the top of the vertical plate, a plurality of branch conveying pipes being installed through the treatment chamber, a plurality of nozzles fixedly installed on the outer surface of the branch conveying pipes, the nozzles being arranged with their spray direction facing downwards, the ends of the plurality of branch conveying pipes being connected to the same main conveying pipe, a denitrification agent input pipe being connected to the main conveying pipe, a gas input pipe being installed through the treatment chamber, one end of the gas input pipe extending into the interior of the treatment chamber and connected to an exhaust hood, the exhaust direction of the exhaust hood being arranged downwards and the exhaust hood being fixedly installed inside the treatment chamber. The treatment chamber has a filter screen that is movably installed inside, located below the nozzle and above the exhaust hood. A motor is fixedly installed on the outer surface of the treatment chamber, and the output shaft of the motor is fixedly connected to a rotating shaft rotatably installed inside the treatment chamber. Several cams are fixedly installed on the outer surface of the rotating shaft, and the outer surface of the cams is in contact with the lower surface of the filter screen. Gas output pipes and water output pipes are respectively installed on the upper and lower surfaces of the treatment chamber. A treatment cylinder is fixedly installed at the end of the gas output pipe, and an activated carbon adsorption mesh and a desiccant mesh are inserted inside the treatment cylinder. A receiving cylinder is detachably installed on the upper surface of the base, and the receiving cylinder is positioned opposite the water output pipe. A filter cylinder is movably installed inside the receiving cylinder, and a handle is fixedly installed on the inner wall of the filter cylinder.

[0007] The above solution involves setting up a treatment chamber in conjunction with a filter screen, a denitrification agent inlet pipe, and a gas inlet pipe. The denitrification agent, fed through the denitrification agent inlet pipe, is transported to the nozzles via a main conveying pipe and branch conveying pipes. The exhaust gas, after being transported through the gas inlet pipe, is ejected through the outlet pipe. The gas first passes through the filter screen to remove dust particles, and then reacts with the denitrification agent for denitrification treatment. Denitrification and dust removal are integrated, effectively improving operational efficiency. Furthermore, the gas after denitrification and dust removal, when discharged through the activated carbon adsorption screen and desiccant screen, effectively removes odors and moisture, ensuring a clean environment. By setting up a motor in conjunction with a rotating shaft and a cam, the filter screen can continuously vibrate up and down, thereby dislodging substances stuck in the filter screen mesh, ensuring smooth gas flow and effectively preventing clogging.

[0008] In the above scheme, it should be noted that the motor and the external power supply are electrically connected.

[0009] In a preferred embodiment, the receiving tube is threaded with several bolts, and the upper surface of the base is provided with several threaded grooves for the bolts to be screwed into.

[0010] Using the above solution, the setting of bolt one enables convenient installation of the receiving tube, ensuring that the receiving tube will not shake during water collection, and the threaded connection facilitates disassembly and assembly.

[0011] In a preferred embodiment, a plurality of sliders are fixedly installed on the side of the filter screen, and a spring is fixedly installed on the lower surface of the slider. A groove is provided on the inner wall of the processing box, and the slider is slidably installed on the inner wall of the groove. The bottom end of the spring is fixedly installed on the inner wall of the groove.

[0012] By adopting the above scheme, the slider slides in the groove, which makes the up and down movement of the filter screen stable. The elastic force of the spring can ensure that the filter screen and the cam can always be in contact and cooperate.

[0013] In a preferred embodiment, a limiting frame is provided at the end of the processing cylinder, and several bolts are threadedly installed on the limiting frame. A threaded groove is provided on the side of the processing cylinder for the bolts to be screwed in.

[0014] Using the above solution, the limiting frame, in conjunction with bolt two, can limit the activated carbon adsorption mesh and desiccant mesh, preventing them from falling out of the treatment cylinder.

[0015] In a preferred embodiment, a plurality of retaining balls are fixedly installed on the outer surface of the filter cartridge, and a plurality of retaining grooves are provided on the inner wall of the receiving cartridge, wherein the retaining balls and retaining grooves are used in conjunction.

[0016] Using the above scheme, the locking ball and the locking groove work together to achieve a position lock limit after the filter cartridge is inserted into the receiving tube, so as to avoid shaking when impacted by the water flow.

[0017] In a preferred embodiment, a plurality of inserts are fixedly installed on the outer surface of the filter cartridge, and a plurality of slots are provided on the inner wall of the receiving cartridge, with the inserts inserted into the inner wall of the slots.

[0018] Using the above solution, the insert can guide the filter cartridge during installation after it is inserted into the slot, thus improving the ease of installation.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This integrated denitrification and dust removal equipment for biomass boilers uses a treatment box with a filter screen, a denitrification agent input pipe, and a gas input pipe. The denitrification agent input pipe is transported to the nozzles via a main conveying pipe and a branch conveying pipe. The exhaust gas is transported through the gas input pipe and then sprayed out through the exhaust pipe. The gas first passes through the filter screen to remove dust particles, and then reacts with the denitrification agent to perform denitrification treatment. Denitrification and dust removal are integrated, which effectively improves the operating efficiency. Moreover, when the gas after denitrification and dust removal is discharged through the activated carbon adsorption screen and the desiccant screen, it can effectively remove odors and moisture, ensuring a good environment.

[0021] This integrated denitrification and dust removal equipment for biomass boilers uses a motor in conjunction with a rotating shaft and a cam to make the filter screen vibrate up and down continuously. This vibrates the material stuck in the filter screen mesh, ensuring smooth gas flow and effectively preventing clogging. Furthermore, the water generated during denitrification flows downwards, carrying away particulate matter on the filter screen, further enhancing the anti-clogging effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a structural schematic diagram of the cross-section of the processing box of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the filter screen of this utility model;

[0025] Figure 4 This is a schematic diagram of the cross-section of the processing cylinder of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the receiving cylinder and filter cylinder of this utility model when they explode.

[0027] In the diagram: 1. Base; 2. Vertical plate; 3. Processing chamber; 4. Sub-conveying pipe; 5. Nozzle; 6. Main conveying pipe; 7. Denitrifying agent input pipe; 8. Gas input pipe; 9. Gas outlet hood; 10. Filter screen; 11. Motor; 12. Rotating shaft; 13. Cam; 14. Gas output pipe; 15. Processing cylinder; 16. Activated carbon adsorption screen; 17. Desiccant screen; 18. Water output pipe; 19. Receiving cylinder; 20. Bolt 1; 21. Filter cylinder; 22. Handle; 23. Slider; 24. Spring; 25. Limiting bracket; 26. Bolt 2; 27. Insert strip; 28. Clamping ball. Detailed Implementation

[0028] Please see Figure 1-5This utility model provides an integrated denitrification and dust removal device for biomass boilers, including a base 1. A vertical plate 2 is fixedly installed on the upper surface of the base 1. A treatment chamber 3 is fixedly installed on the top of the vertical plate 2. Several branch conveying pipes 4 are installed through the treatment chamber 3. Several nozzles 5 are fixedly installed on the outer surface of the branch conveying pipes 4, with the spray direction of the nozzles 5 facing downwards. The ends of the several branch conveying pipes 4 are connected to the same main conveying pipe 6. A denitrification agent input pipe 7 is connected to the main conveying pipe 6. A gas input pipe 8 is installed through the treatment chamber 3. One end of the gas input pipe 8 extends into the interior of the treatment chamber 3 and is connected to an exhaust hood 9. The exhaust direction of the exhaust hood 9 is downwards, and the exhaust hood 9 is fixedly installed on the inner wall of the treatment chamber 3. A filter screen 10 is movably installed inside the treatment chamber 3. The screen 10 is located below the nozzle 5 and above the exhaust hood 9. A motor 11 is fixedly installed on the outer surface of the treatment box 3. The output shaft of the motor 11 is fixedly connected to a rotating shaft 12 rotatably installed inside the treatment box 3. Several cams 13 are fixedly installed on the outer surface of the rotating shaft 12. The outer surface of the cams 13 is in contact with the lower surface of the screen 10. A gas output pipe 14 and a water output pipe 18 are respectively installed on the upper and lower surfaces of the treatment box 3. A treatment cylinder 15 is fixedly installed at the end of the gas output pipe 14. An activated carbon adsorption screen 16 and a desiccant screen 17 are inserted into the treatment cylinder 15. A receiving cylinder 19 is detachably installed on the upper surface of the base 1. The receiving cylinder 19 is positioned directly opposite the water output pipe 18. A filter cylinder 21 is movably installed inside the receiving cylinder 19. A handle 22 is fixedly installed on the inner wall of the filter cylinder 21.

[0029] The system is designed to work with a processing chamber 3, a filter screen 10, a denitrifying agent input pipe 7, and a gas input pipe 8. The denitrifying agent input through the denitrifying agent input pipe 7 is transported to the nozzle 5 via the main conveying pipe 6 and the branch conveying pipe 4. The exhaust gas is transported through the gas input pipe 8 and then sprayed out through the outlet pipe. The gas first passes through the filter screen 10 to remove dust particles, and then reacts with the denitrifying agent to perform denitrification treatment. Denitrification and dust removal are integrated, which effectively improves the efficiency of operation. When the gas after denitrification and dust removal is discharged through the activated carbon adsorption screen 16 and the desiccant screen 17, it can effectively remove odors and moisture, ensuring a good environment. By setting up a motor 11 in conjunction with a rotating shaft 12 and a cam 13, the filter screen 10 can be continuously vibrated up and down, which can shake off the substances stuck in the mesh of the filter screen 10, ensuring smooth gas flow and effectively preventing blockage.

[0030] The receiving tube 19 is threaded with several bolts 20, and the upper surface of the base 1 is provided with several threaded grooves for the bolts 20 to be screwed in. The bolts 20 enable convenient installation of the receiving tube 19, ensure that the receiving tube 19 will not shake during water collection, and the threaded connection facilitates disassembly and assembly.

[0031] Several sliders 23 are fixedly installed on the side of the filter screen 10. A spring 24 is fixedly installed on the lower surface of the slider 23. A groove is opened on the inner wall of the processing box 3. The sliders 23 are slidably installed on the inner wall of the groove. The bottom end of the spring 24 is fixedly installed on the inner wall of the groove. By sliding the sliders 23 in the groove, the filter screen 10 has good stability in up and down movement. The elastic force of the spring 24 can ensure that the filter screen 10 and the cam 13 can always be in contact and cooperate.

[0032] The end of the treatment cylinder 15 is provided with a limiting frame 25, and several bolts 26 are threaded on the limiting frame 25. The side of the treatment cylinder 15 is provided with a threaded groove for the bolts 26 to be screwed in. By using the limiting frame 25 in conjunction with the bolts 26, the activated carbon adsorption mesh 16 and the desiccant mesh plate 17 can be limited to prevent them from falling out of the treatment cylinder 15.

[0033] Several locking balls 28 are fixedly installed on the outer surface of the filter cartridge 21, and several locking slots are opened on the inner wall of the receiving tube 19. The locking balls 28 and the locking slots work together to lock the filter cartridge 21 in a certain position after it is inserted into the receiving tube 19, so as to prevent it from shaking when impacted by water flow.

[0034] Several inserts 27 are fixedly installed on the outer surface of the filter cartridge 21. Several slots are opened on the inner wall of the receiving tube 19. The inserts 27 are inserted into the inner wall of the slots. After the inserts 27 are inserted into the slots, they can guide the installation of the filter cartridge 21 and improve the ease of installation.

[0035] In use, the receiving cylinder 19 is installed on the base 1 using bolts 20. The denitrification agent is transported to the main conveying pipe 6 through the denitrification agent input pipe 7, and then enters the branch conveying pipe 4 to be sprayed out from the nozzle 5. The boiler exhaust gas is input through the gas input pipe 8 and then sprayed out from the exhaust hood 9. When the gas flows upward, it first passes through the filter screen 10, which filters the particulate matter mixed in the gas. The filtered gas continues to flow upward and comes into contact with the denitrification agent to react and denitrate. The denitrified gas is transported to the treatment cylinder 15 through the gas output pipe 14 and undergoes activated carbon adsorption. The filter screen 16 removes odors, and the desiccant screen 17 removes moisture before being discharged. The denitrification water is discharged into the receiving cylinder 19 through the water output pipe 18. As the water flows downward, it washes the filter screen 10, and the water flow carries particulate matter into the filter cartridge 21. The filter cartridge 21 collects the particulate matter. At the same time, the motor 11 starts and drives the rotating shaft 12 to drive the cam 13 to rotate, which in turn drives the filter screen 10 to vibrate up and down, effectively preventing clogging. After the operation is completed, the filter cartridge 21 is pulled upward to disengage the retaining ball 28 from the retaining groove, and the filter cartridge 21 is taken out for cleaning.

Claims

1. An integrated denitrification and dust removal equipment for biomass boilers, characterized in that: Includes a base (1), on the upper surface of which a vertical plate (2) is fixedly installed. A processing box (3) is fixedly installed at the top of the vertical plate (2). Several branch conveying pipes (4) are installed through the processing box (3). Several nozzles (5) are fixedly installed on the outer surface of each branch conveying pipe (4). The nozzles (5) are arranged with their spray direction facing downwards. The ends of the several branch conveying pipes (4) are connected to the same main conveying pipe (6). 6) A denitrification agent input pipe (7) is connected to the upper part of the treatment box (3), and a gas input pipe (8) is installed through the upper part of the treatment box (3). One end of the gas input pipe (8) extends into the interior of the treatment box (3) and is connected to an exhaust hood (9). The exhaust direction of the exhaust hood (9) is downward and the exhaust hood (9) is fixedly installed on the inner wall of the treatment box (3). A filter screen (10) is movably installed inside the treatment box (3). The filter screen (10) is located below the nozzle (5). Located above the exhaust hood (9), a motor (11) is fixedly installed on the outer surface of the processing box (3). The output shaft of the motor (11) is fixedly connected to a rotating shaft (12) rotatably installed inside the processing box (3). Several cams (13) are fixedly installed on the outer surface of the rotating shaft (12). The outer surface of the cams (13) is in contact with the lower surface of the filter screen (10). Gas output pipes (14) are respectively installed on the upper and lower surfaces of the processing box (3). The gas output pipe (14) is fixedly installed with a treatment cylinder (15) at the end of the gas output pipe (14). The treatment cylinder (15) is filled with an activated carbon adsorption mesh (16) and a desiccant mesh plate (17). The upper surface of the base (1) is detachably installed with a receiving cylinder (19). The receiving cylinder (19) is arranged facing the water output pipe (18). The receiving cylinder (19) is movably arranged with a filter cylinder (21). The inner wall of the filter cylinder (21) is fixedly installed with a handle (22).

2. The integrated denitrification and dust removal equipment for biomass boilers according to claim 1, characterized in that: The receiving tube (19) is threaded with several bolts (20), and the upper surface of the base (1) is provided with several threaded grooves for the bolts (20) to be screwed into.

3. The integrated denitrification and dust removal equipment for biomass boilers according to claim 1, characterized in that: A number of sliders (23) are fixedly installed on the side of the filter screen (10). A spring (24) is fixedly installed on the lower surface of the slider (23). A groove is opened on the inner wall of the processing box (3). The slider (23) is slidably installed on the inner wall of the groove. The bottom end of the spring (24) is fixedly installed on the inner wall of the groove.

4. The integrated denitrification and dust removal equipment for biomass boilers according to claim 1, characterized in that: The processing cylinder (15) is provided with a limiting frame (25) at its end. Several bolts (26) are threadedly installed on the limiting frame (25). The processing cylinder (15) has a threaded groove on its side for the bolts (26) to be screwed in.

5. The integrated denitrification and dust removal equipment for biomass boilers according to claim 1, characterized in that: The outer surface of the filter cartridge (21) is fixedly equipped with several locking balls (28), and the inner wall of the receiving tube (19) is provided with several locking slots. The locking balls (28) and the locking slots are used in conjunction.

6. The integrated denitrification and dust removal equipment for biomass boilers according to claim 1, characterized in that: The outer surface of the filter cartridge (21) is fixedly equipped with several inserts (27), and the inner wall of the receiving cartridge (19) is provided with several slots, and the inserts (27) are inserted into the inner wall of the slots.

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