Combined dust removal and denitration device

Abstract

The utility model discloses a combined dust removal and denitration device, which relates to the technical field of flue gas dust removal and comprises a support, the inner side wall of the support is fixedly connected with a bag type dust remover and a denitration furnace body, the inner side wall of the bag type dust remover is fixedly connected with uniformly distributed filter bags, a ventilation cavity is arranged in the bag type dust remover, and the denitration furnace body is arranged in the ventilation cavity. The side wall of the bracket is fixedly connected with a climbing frame, the surface of the climbing frame is fixedly connected with a compressed air tank, the outlet end of the compressed air tank is fixedly communicated with blowing pipes which are uniformly distributed, the outlet ends of the blowing pipes extend to the inlet ends of filter bags of the bag type dust collector, and the surfaces of the blowing pipes are fixedly connected with electromagnetic valves; according to the combined type dedusting and denitration device, dedusting and denitration technologies are effectively combined to form the combined type dedusting and denitration device, so that the overall efficiency of flue gas treatment can be remarkably improved, particulate matters and nitrogen oxides in flue gas can be removed at the same time, energy consumption and operation cost can be reduced, and increasingly strict environmental protection laws and regulations can be better met.

Description

Technical Field

[0001] This utility model relates to the field of flue gas dust removal technology, specifically a combined dust removal and denitrification device. Background Technology

[0002] With the acceleration of industrialization, environmental pollution has become increasingly serious, especially the emission of nitrogen oxides (NOx) and particulate matter in flue gas, posing a significant threat to air quality and human health. Traditional flue gas treatment technologies often target specific types of pollutants, leading to low treatment efficiency and increased energy consumption. Therefore, the development of efficient and integrated combined dust removal and denitrification devices is particularly important. Existing denitrification technologies, such as selective catalytic reduction (SCR), can effectively remove nitrogen oxides; however, in practical applications, SCR systems usually need to be used in conjunction with dust removal systems to achieve better pollutant removal results. On the other hand, common dust removal technologies, such as bag filters and electrostatic precipitators, while effectively capturing particulate matter, have limited denitrification effects when treating flue gas containing nitrogen oxides. Therefore, effectively combining dust removal and denitrification technologies to form a combined dust removal and denitrification device can significantly improve the overall efficiency of flue gas treatment.

[0003] Therefore, those skilled in the art have provided a combined dust removal and denitrification device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a combined dust removal and denitrification device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A combined dust removal and denitrification device includes a support frame. A bag filter and a denitrification furnace are fixedly connected to the inner wall of the support frame. Filter bags are uniformly arranged and fixedly connected to the inner wall of the bag filter. The bag filter has an internal ventilation chamber with a communication opening between the ventilation chamber and the denitrification furnace support frame. A climbing frame is fixedly connected to the side wall of the support frame. A compressed air tank is fixedly connected to the surface of the climbing frame. A uniformly arranged blowpipe is fixedly connected to the outlet end of the compressed air tank. The outlet end of the blowpipe extends to the filter bag inlet end of the bag filter. A solenoid valve is fixedly connected to the surface of the blowpipe.

[0007] As a further embodiment of this utility model: a rotating shaft is rotatably connected to the inner wall of the dust discharge end of the bag filter, and multiple sets of paddles are fixedly connected to the surface of the rotating shaft. The paddles are in a star shape and abut against the dust discharge end of the bag filter.

[0008] As a further embodiment of this utility model: a drive motor is fixedly connected to the dust discharge end side wall of the bag filter, a transmission rod is fixedly connected to the power output end of the drive motor, and a second bevel gear is fixedly connected to one end of the transmission rod.

[0009] As a further embodiment of this utility model: a first bevel gear is fixedly connected to one end of the rotating shaft, and the first bevel gear is meshed with a second bevel gear.

[0010] As a further embodiment of this utility model: the inner side wall of the denitrification furnace is fixedly connected with staggered spray pipes, the inlet end of the spray pipes is connected to the outlet end of the reducing agent output device, and the surface of the spray pipes is fixedly connected with uniformly arranged high-pressure nozzles.

[0011] As a further embodiment of this utility model: a demister is fixedly connected to the inner side wall of the denitrification furnace body, and an exhaust port is fixedly connected to the inner side wall of the denitrification furnace body, with the exhaust port located above the demister.

[0012] As a further improvement of this utility model: a drain pump is fixedly connected to the bottom of the denitrification furnace body, and the inlet end of the drain pump extends into the interior of the denitrification furnace body.

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

[0014] 1. Flue gas enters the bag filter through the inlet. The particulate dust in the flue gas is filtered by the filter bags. The dust adheres to the surface of the filter bags. The compressed air tank is intermittently sprayed by the solenoid valve. The gas is introduced into the inlet end of the filter bags through the blow pipe to achieve backflushing of the filter bags and wash off the dust accumulated on the surface of the filter bags, ensuring the dust removal efficiency of the filter bags. The fallen dust is collected in the dust hopper. The drive motor drives the transmission rod to rotate, which in turn drives the second bevel gear to rotate. The second bevel gear drives the first bevel gear to rotate, which in turn drives the shaft to rotate. The shaft drives the paddle to rotate, which in turn discharges the dust, achieving automatic dust discharge. It also has a certain airlock function.

[0015] 2. Flue gas enters the bag filter through the inlet. Large dust particles in the flue gas are filtered by the filter bags, achieving dust removal. The dust-removed flue gas then enters the denitrification furnace through the ventilation chamber and connecting port. After entering the denitrification furnace, the reducing agent (ammonia solution) is directed to the high-pressure nozzle through the spray pipe and then sprayed out through the high-pressure nozzle, mixing with the flue gas. The ammonia solution reacts with the nitrogen oxides in the flue gas to generate nitrogen and water, achieving the effect of denitrification. The demister can remove any liquid droplets that may be trapped in the flue gas, ensuring that the emitted gas is clean and residue-free. The gas that has completed dust removal and denitrification is discharged through the exhaust port. The effective combination of dust removal and denitrification technologies forms a combined dust removal and denitrification device, which can significantly improve the overall efficiency of flue gas treatment. It can not only remove particulate matter and nitrogen oxides from the flue gas at the same time, but also reduce energy consumption and operating costs through optimized design, thereby better meeting increasingly stringent environmental regulations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a combined dust removal and denitrification device.

[0017] Figure 2 This is a schematic diagram of the internal structure of the bag filter and the denitrification furnace in a combined dust removal and denitrification device.

[0018] Figure 3 This is a schematic diagram of the dust discharge end of a bag filter in a combined dust removal and denitrification device.

[0019] In the diagram: 1. Support frame; 2. Bag filter; 3. Denitrification furnace body; 4. Climbing frame; 5. Compressed air tank; 6. Pulse jet pipe; 7. Solenoid valve; 8. Rotary shaft; 9. Paddle; 10. First bevel gear; 11. Drive motor; 12. Transmission rod; 13. Second bevel gear; 14. Connecting port; 15. Filter bag; 16. Ventilation chamber; 17. Spray pipe; 18. High-pressure nozzle; 19. Demister; 20. Exhaust port; 21. Drain pump. Detailed Implementation

[0020] 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. Example 1

[0021] Reference Figure 1-3This embodiment provides a combined dust removal and denitrification device, including a support frame 1. A bag filter 2 and a denitrification furnace body 3 are fixedly connected to the inner wall of the support frame 1. Filter bags 15 are evenly arranged and fixedly connected to the inner wall of the bag filter 2. An air vent 16 is provided inside the bag filter 2. The air vent 16 and the support frame 1 of the denitrification furnace body 3 have a communication opening 14. A climbing frame 4 is fixedly connected to the side wall of the support frame 1. A compressed air tank 5 is fixedly connected to the surface of the climbing frame 4. The outlet end of the compressed air tank 5 is fixedly connected to... A uniformly arranged blowpipe 6 is provided, with the outlet end of the blowpipe 6 extending to the inlet end of the filter bag 15 of the bag filter 2. A solenoid valve 7 is fixedly connected to the surface of the blowpipe 6. A rotating shaft 8 is rotatably connected to the inner side wall of the dust discharge end of the bag filter 2. Multiple sets of levers 9 are fixedly connected to the surface of the rotating shaft 8. The levers 9 are in a star shape and abut against the dust discharge end of the bag filter 2. A drive motor 11 is fixedly connected to the side wall of the dust discharge end of the bag filter 2. A transmission rod 1 is fixedly connected to the power output end of the drive motor 11. 2. A second bevel gear 13 is fixedly connected to one end of the transmission rod 12, and a first bevel gear 10 is fixedly connected to one end of the rotating shaft 8. The first bevel gear 10 and the second bevel gear 13 are meshed together. Flue gas enters the bag filter through the inlet. The particulate dust in the flue gas is filtered by the filter bag 15. The dust adheres to the surface of the filter bag 15. The compressed air tank 5 is intermittently sprayed by the solenoid valve 7. The gas is introduced into the inlet end of the filter bag 15 through the blowpipe 6 to achieve backflushing of the filter bag 15, which washes off the dust accumulated on the surface of the filter bag 15, ensuring the dust removal efficiency of the filter bag 15. The fallen dust is collected by the ash hopper. The transmission rod 12 is rotated by the power output end of the drive motor 11. The rotation of the transmission rod 12 drives the second bevel gear 13 to rotate. The rotation of the second bevel gear 13 drives the first bevel gear 10 to rotate. The rotation of the first bevel gear 10 drives the rotating shaft 8 to rotate. The rotation of the rotating shaft 8 drives the paddle 9 to rotate. The rotation of the paddle 9 discharges the dust, realizing automatic dust discharge. It also has a certain airlock function. Example 2

[0022] Reference Figure 1-2This embodiment is based on the previous embodiment, but differs in that the inner wall of the denitrification furnace body 3 is fixedly connected with staggered spray pipes 17, the inlet end of the spray pipes 17 is connected to the outlet end of the reducing agent output device, and the surface of the spray pipes 17 is fixedly connected with uniformly arranged high-pressure nozzles 18. A demister 19 is also fixedly connected to the inner wall of the denitrification furnace body 3, and an exhaust port 20 is fixedly connected to the side wall of the denitrification furnace body 3, located above the demister 19. A drain pump 21 is fixedly connected to the bottom of the denitrification furnace body 3, and the inlet end of the drain pump 21 extends into the interior of the denitrification furnace body 3. Flue gas is introduced into a bag filter through the inlet, where large dust particles in the flue gas are filtered by the filter bags 15, achieving dust removal. The dust-removed flue gas is then introduced into the denitrification furnace body through the ventilation chamber 16 and the connecting port 14. Inside the furnace body 3, after the flue gas enters the denitrification furnace body 3, the reducing agent (ammonia solution) is passed to the high-pressure nozzle 18 through the spray pipe 17, and then sprayed out through the high-pressure nozzle 18 to mix with the flue gas. The ammonia solution reacts with the nitrogen oxides in the flue gas to generate nitrogen and water, thus achieving the effect of denitrification of the flue gas. The demister 19 can remove any liquid droplets that may be trapped in the flue gas, ensuring that the emitted gas is clean and residue-free. The gas that has completed dust removal and denitrification is discharged through the exhaust port 20. The dust removal and denitrification technologies are effectively combined to form a combined dust removal and denitrification device, which can significantly improve the overall efficiency of flue gas treatment. It can not only remove particulate matter and nitrogen oxides in the flue gas at the same time, but also reduce energy consumption and operating costs through optimized design, thereby better meeting increasingly stringent environmental regulations.

[0023] 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.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A combined dust removal and denitrification device, characterized in that, Includes a support (1), on which a bag filter (2) and a denitrification furnace body (3) are fixedly connected to the inner side wall. The bag filter (2) is fixedly connected to the inner side wall with uniformly arranged filter bags (15). The bag filter (2) has an air chamber (16) inside. The air chamber (16) and the support (1) of the denitrification furnace body (3) have a communication port (14). The support (1) is fixedly connected to a climbing frame (4). The climbing frame (4) is fixedly connected to a compressed air tank (5). The outlet end of the compressed air tank (5) is fixedly connected to a uniformly arranged blow pipe (6). The outlet end of the blow pipe (6) extends to the inlet end of the filter bag (15) of the bag filter (2). The surface of the blow pipe (6) is fixedly connected to a solenoid valve (7).

2. The combined dust removal and denitrification device according to claim 1, characterized in that, The inner wall of the dust discharge end of the bag filter (2) is rotatably connected to a rotating shaft (8). Multiple sets of paddles (9) are fixedly connected to the surface of the rotating shaft (8). The paddles (9) are in the shape of a star and abut against the dust discharge end of the bag filter (2).

3. The combined dust removal and denitrification device according to claim 1, characterized in that, The dust collector (2) has a drive motor (11) fixedly connected to the dust discharge end side wall, and a transmission rod (12) fixedly connected to the power output end of the drive motor (11). A second bevel gear (13) is fixedly connected to one end of the transmission rod (12).

4. A combined dust removal and denitrification device according to claim 2, characterized in that, One end of the rotating shaft (8) is fixedly connected to a first bevel gear (10), and the first bevel gear (10) meshes with a second bevel gear (13).

5. A combined dust removal and denitrification device according to claim 1, characterized in that, The inner wall of the denitrification furnace body (3) is fixedly connected with staggered spray pipes (17), the inlet end of the spray pipes (17) is connected to the outlet end of the reducing agent output device, and the surface of the spray pipes (17) is fixedly connected with uniformly arranged high-pressure nozzles (18).

6. The combined dust removal and denitrification device according to claim 1, characterized in that, The inner wall of the denitrification furnace body (3) is also fixedly connected to a demister (19), and the side wall of the denitrification furnace body (3) is fixedly connected to an exhaust port (20), which is located above the demister (19).

7. A combined dust removal and denitrification device according to claim 1, characterized in that, A drainage pump (21) is fixedly connected to the bottom of the denitrification furnace body (3), and the inlet end of the drainage pump (21) extends into the interior of the denitrification furnace body (3).

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