Dust removal and denitration device capable of conveniently maintaining filter bag

Abstract

The utility model discloses a dust removal and denitration device capable of conveniently maintaining a filter bag, and relates to the technical field of dust removal and denitration devices, the dust removal and denitration device capable of conveniently maintaining the filter bag comprises a base, a first pipeline is mounted on the base, a denitration cavity is mounted at the upper end of the first pipeline, a second air inlet is formed in the denitration cavity, and a second air outlet is formed in the lower end of the first pipeline. A second gas inlet is formed in the first pipeline, a denitration agent pipe is mounted on the second gas inlet, a dust removal chamber is mounted on the second pipeline, two cross-shaped grooves are formed in the second pipeline, two supporting frames are symmetrically mounted on the dust removal chamber, the supporting frames are embedded in the cross-shaped grooves, and when flue gas moves upwards to the denitration cavity along the first pipeline, the flue gas is mixed with a denitration agent for denitration. The flue gas continues to move upwards along the second pipeline, dust removal treatment is completed in the dust removal chamber, the dust removal chamber is detachably installed on the cross groove of the dust removal chamber through the supporting frame, and the whole dust removal chamber is taken out by lifting the supporting frame to clean or replace the dust removal filter bag.

Description

Technical Field

[0001] This utility model relates to the technical field of dust removal and denitrification devices, specifically a dust removal and denitrification device with convenient filter bag maintenance. Background Technology

[0002] The integrated dust and nitrogen oxide technology combines multiple technologies to treat dust and nitrogen oxides in industrial waste gas in one go, reducing the content of particulate matter and nitrogen oxides in the air, thereby reducing air pollution and protecting the environment. This technology not only saves space and equipment investment, but also improves treatment efficiency, and has the advantages of high flexibility and low investment cost.

[0003] Under current technology, integrated dust and nitrogen oxide removal equipment mostly uses metal filter bags in the dust removal area. When flue gas carrying dust passes through the metal filter bags, the dust particles are blocked and adhere to the metal filter bags, while the gas is discharged from the gaps. Over time, the accumulated dust will clog the mesh of the metal filter bags, affecting the flow of gas and greatly reducing the speed of flue gas treatment and the dust removal effect.

[0004] Therefore, setting up a convenient connection structure to simplify the installation and disassembly process of metal filter bags can improve the working efficiency of dust removal equipment and extend the service life of metal filter bags. Utility Model Content

[0005] The purpose of this invention is to provide a dust removal and denitrification device that allows for convenient maintenance of filter bags, thereby solving the problems raised in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: The dust removal and denitrification device for convenient filter bag maintenance includes a base 1. A first pipe is installed on the base, and a first air inlet is provided on the first pipe. A flue gas pipe is installed on the first air inlet. A denitrification chamber is installed at the upper end of the first pipe. Several second air inlets are provided on the denitrification chamber, and denitrification agent pipes are installed on each of the several second air inlets. A second pipe is installed at the upper end of the denitrification chamber, and a dust removal chamber is detachably installed at the upper end of the second pipe. Two cross grooves are symmetrically provided at the upper end of the second pipe. Two support frames are symmetrically installed on the dust removal chamber. The support frames are fitted into cross grooves. When flue gas is treated, the flue gas is blown into the first pipe from the first air inlet and continues to move upward along the first pipe. When it moves to the denitrification chamber, the flue gas mixes with the denitrification agent injected from the second air inlet and undergoes denitrification treatment. The treated flue gas continues to move upward through the second pipe and completes the dust removal treatment in the dust removal chamber. The dust removal chamber is detachably installed on the dust removal chamber by means of the support frames. After long-term use, when cleaning is required, the entire dust removal chamber can be taken out by lifting the support frames for cleaning or replacement of the dust filter bags.

[0007] As a preferred technical solution, two first sliding grooves are symmetrically opened on the second pipe, and push buttons are slidably installed on both first sliding grooves. Two slots are opened at the bottom of the dust removal chamber, and a second connecting rod is installed on each of the two push buttons. A locking block is installed on the second connecting rod, and the bottom surface of the locking block is in contact with the upper surface of the slot.

[0008] As a preferred technical solution, two first connecting rods are symmetrically installed near the first pipe end of the denitrification chamber. A spindle-shaped plate is installed on the first connecting rod. The spindle-shaped plate is circular in the middle. A rotating column is rotatably installed on the upper end of the spindle-shaped plate. Several fan blades are installed on the upper end of the rotating column. Two third connecting rods are installed on the rotating column. A scraper is installed on each of the two third connecting rods. The curvature of the scraper is the same as that of the denitrification chamber. The scraper is in contact with the inner wall of the denitrification chamber.

[0009] As a preferred technical solution, the lower half and lower half of the denitrification chamber are both arc-shaped, and the middle section of the denitrification chamber is columnar. The second air inlet is opened on the columnar wall of the middle section. When the flue gas flows out from the first pipe, it is blocked by the spindle plate. The flue gas flows along the spindle plate to the wall of the denitrification chamber. At this time, the denitrification agent is sprayed out from the second air inlet, which mixes fully with the flue gas and reacts to complete the denitrification treatment of the flue gas. The enlarged cavity of the denitrification chamber prolongs the residence time of the flue gas in the denitrification area, ensuring the thoroughness of the denitrification reaction and enhancing the denitrification effect on the flue gas. At the same time, due to the presence of the spindle plate, the solid particles generated by denitrification fall downward along the upper surface of the spindle plate and will not accumulate inside the pipe to block the flue gas passage.

[0010] As a preferred technical solution, the dust removal chamber is provided with a number of mounting holes, and the mounting holes penetrate through the upper and lower end faces, and metal filter bags are installed in each of the mounting holes.

[0011] As a preferred technical solution, a support ring is installed inside the second pipe. The upper surface of the support ring contacts the lower surface of the dust removal chamber. Two second sliding grooves are symmetrically opened on the support ring. The second connecting rod passes through the second sliding grooves. The support ring does not obstruct the lower end of the metal filter bag. After the flue gas undergoes denitrification treatment, it flows upward to the dust removal chamber and flows into the metal filter bag along the lower end of the mounting hole. The metal filter bag completes the dust removal treatment of the flue gas. Finally, the flue gas is discharged from the upper end of the mounting hole. The support ring supports the dust removal chamber installed in the second pipe to prevent the accumulation of solid particles in the metal filter bag, which would cause the dust removal chamber to shift downward, causing deformation of the support frame and affecting the disassembly and installation of the dust removal chamber.

[0012] As a preferred technical solution, a drain outlet is provided at the lower end of the first pipe, and a baffle plate is detachably installed on the drain outlet. Particles rising with the flue gas are treated by dust removal and then adhere to the metal filter bag. Larger particles and solid particles generated during denitrification eventually fall to the bottom of the entire denitrification and dust removal device and accumulate. By periodically opening the baffle plate, the accumulated material in the pipe can be cleaned from the drain outlet to maintain the normal operation of the equipment.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting up a detachable dust removal part, and using the cooperation between the support frame and the cross groove, and the snap-fit ​​formed by the slot and the block, a convenient connection structure is set up, which simplifies the installation and disassembly process of the dust removal device, improves the working efficiency of the dust removal equipment, and extends the service life of the metal filter bag.

[0015] 2. By adopting an enlarged denitrification chamber and a spindle-shaped plate, the denitrification time of the flue gas is extended, the contact effect between the flue gas and the denitrification agent is enhanced, and the overall denitrification effect is improved.

[0016] 3. By opening a drain outlet at the bottom of the entire dust removal and denitrification device, larger particles that fall to the bottom can be cleaned up, ensuring the normal operation of the entire device. Attached Figure Description

[0017] Figure 1 This is a first-view structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the third-view structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the first cross-sectional structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the second cross-sectional structure of the present invention.

[0022] Figure 6 For the present utility model Figure 3 Enlarged structural diagram at point A;

[0023] Figure 7 For the present utility model Figure 4 Enlarged structural diagram at point B;

[0024] Figure 8 This is a schematic diagram of the buckle formation and elimination structure of this utility model.

[0025] In the diagram: 1. Base; 2. First pipe; 3. First air inlet; 4. Flue gas pipe; 5. Denitrification chamber; 6. Second air inlet; 7. Denitrification agent pipe; 8. Second pipe; 9. Dust removal chamber; 10. Mounting hole; 11. Metal filter bag; 12. Cross groove; 13. Support frame; 14. First connecting rod; 15. Spindle plate; 16. Support ring; 17. Drain outlet; 18. Baffle plate; 19. First slide groove; 20. Second slide groove; 21. Push button; 22. Second connecting rod; 23. Locking block; 24. Locking groove; 25. Rotating column; 26. Fan blade; 27. Third connecting rod; 28. Scraper. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example: Figures 1-7 As shown, this utility model provides a dust removal and denitrification device with convenient filter bag maintenance. The device includes a base 1, a first pipe 2 mounted on the base 1, a first air inlet 3 on the first pipe 2, a flue gas pipe 4 mounted on the first air inlet 3, a denitrification chamber 5 mounted at the upper end of the first pipe 2, several second air inlets 6 on the denitrification chamber 5, and a denitrification agent pipe 7 mounted on each of the second air inlets 6. A second pipe 8 is mounted at the upper end of the denitrification chamber 5, and a dust removal chamber 9 is detachably mounted at the upper end of the second pipe 8. Two cross grooves 12 are symmetrically formed at the upper end of the second pipe 8, and two support frames 13 are symmetrically mounted on the dust removal chamber 9. The support frame 13 is fitted into the cross groove 12. When flue gas is treated, the flue gas is blown into the first pipe 2 from the first air inlet 3 and continues to move upward along the first pipe 2. When it moves to the denitrification chamber 5, the flue gas mixes with the denitrification agent sprayed from the second air inlet 6 and undergoes denitrification treatment. The treated flue gas continues to move upward through the second pipe 8 and completes dust removal treatment in the dust removal chamber 9. The dust removal chamber 9 is detachably installed on the dust removal chamber 9 by means of the support frame 13. After long-term use, when cleaning is required, the entire dust removal chamber 9 can be taken out for cleaning or replacement of the dust removal filter bag by lifting the support frame 13. The convenient connection structure simplifies the installation and disassembly process of the dust removal device, which can improve the working efficiency of the dust removal equipment and extend the service life of the metal filter bag 11.

[0028] like Figures 5-8As shown, two first sliding grooves 19 are symmetrically opened on the second pipe 8. A push button 21 is slidably installed on each of the two first sliding grooves 19. Two slots 24 are opened at the bottom of the dust removal chamber 9. A second connecting rod 22 is installed on each of the two push buttons 21. A locking block 23 is installed on the second connecting rod 22. The bottom surface of the locking block 23 is in contact with the upper surface of the slot 24. In the working state, the locking block 23 and the slot 24 form a latch to prevent the dust removal chamber 9 from being affected by flue gas or other factors and shaking up and down. When it is necessary to disassemble, inspect or clean the dust removal chamber 9, push the push button 21 counterclockwise to slide along the first sliding groove 19. The push button 21 drives the locking block 23 to rotate through the second connecting rod 22, so that the locking block 23 is in the slot of the slot 24 and no longer forms a latch, making it easy to lift the dust removal chamber 9 upward. When the dust removal chamber 9 is reinstalled, push the push button 21 clockwise to make the locking block 23 and the slot 24 form a latch again.

[0029] like Figures 1-4 As shown, two first connecting rods 14 are symmetrically installed near the first pipe 2 at one end of the denitrification chamber 5. A shuttle-shaped plate 15 is installed on the first connecting rod 14. The shuttle-shaped plate 15 is circular in the middle. A rotating column 25 is rotatably installed on the upper end of the shuttle-shaped plate 15. Several fan blades 26 are installed on the upper end of the rotating column 25. Two third connecting rods 27 are installed on the rotating column 25. A scraper 28 is installed on each of the two third connecting rods 27. The curvature of the scraper 28 is the same as that of the denitrification chamber 5. The scraper 28 is in contact with the inner wall of the denitrification chamber 5.

[0030] The lower half and lower half of the denitrification chamber 5 are both arc-shaped, and the middle section of the denitrification chamber 5 is columnar. The second air inlet 6 is opened on the columnar wall of the middle section. When the flue gas flows out from the first pipe 2, it is blocked by the shuttle plate 15. The flue gas flows along the shuttle plate 15 to the wall of the denitrification chamber 5. At this time, the denitrification agent is sprayed out from the second air inlet 6, which mixes fully with the flue gas and reacts to complete the denitrification treatment of the flue gas. The enlarged cavity of the denitrification chamber 5 prolongs the residence time of the flue gas in the denitrification area, ensuring the thoroughness of the denitrification reaction and enhancing the denitrification effect on the flue gas. At the same time, due to the presence of the shuttle plate 15, the solid particles generated by denitrification fall downward along the upper surface of the shuttle plate 15 and will not accumulate inside the pipe to block the flue gas passage.

[0031] Meanwhile, when the denitrification agent is sprayed into the denitrification chamber 5, it will drive the fan blade 26 to drive the rotating column 25 to rotate. At this time, the rotating column 25 drives the scraper 28 to rotate along the inner wall of the denitrification chamber 5 through the third connecting rod 2, scraping the inner wall of the denitrification chamber 5 to prevent dust or solid particles from accumulating on the inner wall of the denitrification chamber 5 and affecting the flow of flue gas. Moreover, the fan blade 26, the third connecting rod 2 and the scraper 28 can disturb the airflow during the rotation, so that the flue gas reacts more fully with the denitrification agent and enhances the denitrification effect. When the flue gas enters the second pipe 8 from the denitrification chamber 5, the airflow can be well uniform due to the gradual reduction of the flow surface.

[0032] The dust removal chamber 9 has several mounting holes 10, and the mounting holes 10 penetrate the upper and lower end faces. Metal filter bags 11 are installed in each of the mounting holes 10.

[0033] A support ring 16 is installed inside the second pipe 8. The upper surface of the support ring 16 is in contact with the lower surface of the dust removal chamber 9. The support ring 16 does not block the lower end of the metal filter bag 11. Two second sliding grooves 20 are symmetrically opened on the support ring 16. The second connecting rod 22 passes through the second sliding grooves 20. After the flue gas undergoes denitrification treatment, it flows upward to the dust removal chamber 9 and flows into the metal filter bag 11 along the lower end of the mounting hole 10. The metal filter bag 11 completes the dust removal treatment of the flue gas. Finally, the flue gas is discharged from the upper end of the mounting hole 10. The support ring 16 supports the dust removal chamber 9 installed in the second pipe 8 to prevent the accumulation of solid particles in the metal filter bag 11, which would cause the dust removal chamber 9 to move downward as a whole, causing the support frame 13 to deform and affecting the disassembly and installation of the dust removal chamber 9.

[0034] The first pipe 2 has a drain outlet 17 at its lower end. A baffle plate 18 is detachably installed on the drain outlet 17. Particles rising with the flue gas are treated by dust removal and then adhere to the metal filter bag 11. Larger particles and solid particles generated during denitrification eventually fall to the bottom of the entire denitrification and dust removal device and accumulate. By periodically opening the baffle plate 18, the accumulated material in the pipe can be cleaned from the drain outlet 17 to maintain the normal operation of the equipment.

[0035] The working principle of this utility model:

[0036] When flue gas is treated, the flue gas is blown into the first pipe 2 from the first air inlet 3 and continues to move upward along the first pipe 2. When it moves to the denitrification chamber 5, the flue gas mixes with the denitrification agent injected from the second air inlet 6 for denitrification treatment. The treated flue gas continues to move upward through the second pipe 8 and completes dust removal treatment in the dust removal chamber 9. The dust removal chamber 9 is detachably installed on the dust removal chamber 9 by means of the support frame 13. After long-term use, when cleaning is required, the entire dust removal chamber 9 can be taken out for cleaning or replacement of the dust removal filter bag by lifting the support frame 13. The convenient connection structure simplifies the installation and disassembly process of the dust removal device, which can improve the working efficiency of the dust removal equipment and extend the service life of the metal filter bag 11.

[0037] In operation, the locking block 23 and the locking slot 24 form a latch to prevent the dust removal chamber 9 from being affected by flue gas or other factors and from shaking up and down. When the dust removal chamber 9 needs to be disassembled for inspection or cleaning, push the push button 21 counterclockwise to slide along the first slide groove 19. The push button 21 drives the locking block 23 to rotate through the second connecting rod 22, so that the locking block 23 is in the groove of the locking slot 24 and no longer forms a latch, making it easy to lift the dust removal chamber 9 upward. When the dust removal chamber 9 is reinstalled, push the push button 21 clockwise to make the locking block 23 and the locking slot 24 form a latch again.

[0038] When the flue gas flows out of the first pipe 2, it is blocked by the shuttle plate 15. The flue gas flows along the shuttle plate 15 to the wall of the denitrification chamber 5. At this time, the denitrification agent is sprayed out from the second air inlet 6, which mixes fully with the flue gas and reacts to complete the denitrification treatment of the flue gas. The enlarged cavity of the denitrification chamber 5 prolongs the residence time of the flue gas in the denitrification area, ensuring the thoroughness of the denitrification reaction and enhancing the denitrification effect on the flue gas. At the same time, due to the presence of the shuttle plate 15, the solid particles generated by denitrification fall downward along the upper surface of the shuttle plate 15 and will not accumulate inside the pipe to block the flue gas passage.

[0039] Meanwhile, when the denitrification agent is sprayed into the denitrification chamber 5, it will drive the fan blade 26 to drive the rotating column 25 to rotate. At this time, the rotating column 25 drives the scraper 28 to rotate along the inner wall of the denitrification chamber 5 through the third connecting rod 27, scraping the inner wall of the denitrification chamber 5 to prevent dust or solid particles from accumulating on the inner wall of the denitrification chamber 5 and affecting the flow of flue gas.

[0040] After the flue gas undergoes denitrification treatment, it flows upward to the dust removal chamber 9 and flows into the metal filter bag 11 along the lower end of the mounting hole 10. The metal filter bag 11 completes the dust removal treatment of the flue gas, and finally the flue gas is discharged from the upper end of the mounting hole 10. The support ring 16 supports the dust removal chamber 9 installed in the second pipe 8 to prevent the accumulation of solid particles in the metal filter bag 11, which would cause the dust removal chamber 9 to move downward as a whole, causing the support frame 13 to deform and affecting the disassembly and installation of the dust removal chamber 9.

[0041] The particles rising with the flue gas are treated by dust removal and adhere to the metal filter bag 11. Larger particles and solid particles produced by denitrification eventually fall to the bottom of the entire denitrification and dust removal device and accumulate. By periodically opening the baffle plate 18, the accumulated material in the pipe can be cleaned from the drain outlet 17 to maintain the normal operation of the equipment.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dust removal and denitrification device with convenient filter bag maintenance, characterized in that: The dust removal and denitrification device with convenient filter bag maintenance includes a base (1), a first pipe (2) installed on the base (1), a first air inlet (3) opened on the first pipe (2), a flue gas pipe (4) installed on the first air inlet (3), a denitrification chamber (5) installed at the upper end of the first pipe (2), a plurality of second air inlets (6) opened on the denitrification chamber (5), a denitrification agent pipe (7) installed on each of the plurality of second air inlets (6), a second pipe (8) installed at the upper end of the denitrification chamber (5), a dust removal chamber (9) detachably installed at the upper end of the second pipe (8), two cross grooves (12) symmetrically opened at the upper end of the second pipe (8), two support frames (13) symmetrically installed on the dust removal chamber (9), and the support frames (13) are fitted into the cross grooves (12).

2. The dust removal and denitrification device with convenient filter bag maintenance according to claim 1, characterized in that: Two first grooves (19) are symmetrically opened on the second pipe (8). Push buttons (21) are slidably installed on both first grooves (19). Two slots (24) are opened at the bottom of the dust removal chamber (9). A second connecting rod (22) is installed on both push buttons (21). A locking block (23) is installed on the second connecting rod (22). The bottom surface of the locking block (23) is in contact with the upper surface of the slot (24).

3. The dust removal and denitrification device with convenient filter bag maintenance according to claim 2, characterized in that: Two first connecting rods (14) are symmetrically installed at one end of the denitrification chamber (5) near the first pipe (2). A shuttle-shaped plate (15) is installed on the first connecting rod (14). The shuttle-shaped plate (15) is circular in the middle. A rotating column (25) is rotatably installed on the upper end of the shuttle-shaped plate (15). Several fan blades (26) are installed on the upper end of the rotating column (25). Two third connecting rods (27) are installed on the rotating column (25). A scraper (28) is installed on each of the two third connecting rods (27). The arc of the scraper (28) is the same as the arc of the denitrification chamber (5). The scraper (28) is in contact with the inner wall of the denitrification chamber (5).

4. The dust removal and denitrification device with convenient filter bag maintenance according to claim 3, characterized in that: The lower half and the lower half of the denitrification chamber (5) are both arc-shaped, and the middle section of the denitrification chamber (5) is columnar, with the second air inlet (6) located on the columnar wall of the middle section.

5. The dust removal and denitrification device with convenient filter bag maintenance according to claim 4, characterized in that: The denitrification chamber (5) has several mounting holes (10) that penetrate the upper and lower end faces. Each of the mounting holes (10) contains a metal filter bag (11).

6. The dust removal and denitrification device with convenient filter bag maintenance according to claim 5, characterized in that: A support ring (16) is installed inside the second pipe (8). The upper surface of the support ring (16) is in contact with the lower surface of the dust removal chamber (9). The support ring (16) cannot block the lower end of the metal filter bag (11). Two second sliding grooves (20) are symmetrically opened on the support ring (16). The second connecting rod (22) passes through the second sliding grooves (20).

7. A dust removal and denitrification device with easily maintainable filter bags according to claim 6, characterized in that: The first pipe (2) has a drain outlet (17) at its lower end, and a baffle plate (18) is detachably installed on the drain outlet (17).

Images