Flue gas desulfurization and denitrification spraying device

Abstract

The utility model discloses a flue gas desulfurization and denitrification spraying device relates to flue gas treatment technical field, the utility model discloses a reaction tower is provided with the air inlet subassembly on the outer surface of reaction tower, and the inside of reaction tower is provided with spraying subassembly and adjustable extraction subassembly, and the spraying end of spraying subassembly sets up upwards, and the top of spraying subassembly is provided with the corrugated slowing down subassembly. The utility model discloses through setting up the corrugated slowing down subassembly above spraying subassembly, thereby making the corrugated slowing down subassembly can intercept the ascending flue gas to a certain extent to make it produce the stagnation at the bottom of the subassembly. Meanwhile, the spraying end can spray the atomized slurry to the area, thereby making the flue gas and the slurry contact for a long time at the bottom of the corrugated slowing down subassembly. The above -mentioned setting makes the sulfur oxide, nitrogen oxide in flue gas and slurry can get the full chemical reaction, and the desulfurization and denitrification efficiency is improved significantly, thereby ensuring that the flue gas after treatment is stable and up to standard emission, and the whole environmental protection management effect is enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas treatment technology, and specifically relates to a flue gas desulfurization and denitrification spray device. Background Technology

[0002] In industrial production processes such as power generation, chemical engineering, and metallurgy, flue gas emissions contain large amounts of sulfur oxides (SOx) and nitrogen oxides (NOx), which are major sources of air pollution. Directly releasing these flue gas into the environment can easily trigger environmental problems such as acid rain and photochemical smog, disrupting the ecological balance and seriously harming the human respiratory and cardiovascular systems. Therefore, efficient desulfurization and denitrification treatment of flue gas to reduce pollutant concentrations is crucial for achieving sustainable industrial development and meeting stringent environmental regulations.

[0003] Spray absorption is a commonly used technology for desulfurization and denitrification of industrial flue gas, and its core equipment is the spray device. This device usually sets up a spray layer inside the reaction tower, and the absorption slurry is atomized and sprayed through nozzles to make full contact with the flue gas flowing through it, so as to effectively remove SOx and NOx through chemical reaction.

[0004] In actual operation, due to the high flow velocity of flue gas within the reaction tower, the residence time of the flue gas in the spray zone is short when it passes through the spray layer, resulting in insufficient contact time between the flue gas and the spray slurry. This brief contact makes it difficult for the chemical reaction between sulfur oxides, nitrogen oxides, and the slurry to proceed fully, leading to low flue gas desulfurization and denitrification efficiency. Furthermore, the treated flue gas is difficult to consistently meet emission standards, affecting the overall environmental protection effect. Utility Model Content

[0005] To address the problem of insufficient contact time between flue gas and spray slurry, this invention proposes a flue gas desulfurization and denitrification spray device to overcome the aforementioned technical problems existing in related technologies.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a flue gas desulfurization and denitrification spray device, including a reaction tower. An air inlet component is provided on the outer surface of the reaction tower. A spray component and an adjustable extraction component are provided inside the reaction tower. The spray component and the adjustable extraction component are connected together. The spray end of the spray component is arranged facing upward. A waveform damping component is provided on the top of the spray component.

[0008] The air intake assembly is used to transport the flue gas to the lower side of the spray assembly, and the waveform reduction assembly is used to guide the slurry sprayed by the flue gas spray assembly so that the flue gas and slurry come into contact multiple times on the lower side of the waveform reduction assembly.

[0009] Furthermore, the air intake assembly includes air inlets, and multiple air inlets are provided on the circumference of the outer surface of the reaction tower. Several air intake branch pipes are fixedly installed on the outer surface of the reaction tower corresponding to the air inlets. An air intake main pipe is provided on the outer surface of the reaction tower, and the several air intake branch pipes are fixedly connected to the air intake main pipe.

[0010] Furthermore, the spray assembly includes spray pipes, several of which are fixedly installed inside the reaction tower. Several atomizing nozzles are fixedly connected to the outer surface of the spray pipes. A connecting pipe is provided on the outer surface of the reaction tower. One end of several spray pipes passes through the reaction tower and is fixedly connected to the connecting pipe. A transport pipe is fixedly connected to the outer surface of the connecting pipe, and the bottom end of the transport pipe extends into the interior of the reaction tower.

[0011] Furthermore, the adjustable extraction assembly includes an extraction tube disposed inside the reaction tower. The extraction tube is movably connected to a transport tube. A rubber sealing gasket is movably connected inside the transport tube. The rubber sealing gasket is fixedly connected to the extraction tube. A float is fixedly connected to the outer surface of the extraction tube.

[0012] Furthermore, the waveform reduction assembly includes a mounting ring, which is fixedly installed on the inner wall of the reaction tower. A waveform plate is fixedly connected to the inner wall of the mounting ring. The atomizing nozzle is located on the lower side of the upwardly convex waveform plate, and a flow groove is provided at the downwardly concave position of the waveform plate.

[0013] Furthermore, an arc-shaped cover is fixedly installed on the top of the reaction tower, and a flue gas outlet is fixedly connected to the top of the arc-shaped cover.

[0014] Furthermore, the bottom of the reaction tower is conical, a discharge pipe is fixedly connected to the bottom of the reaction tower, and a support frame is fixedly connected to the outer surface of the reaction tower.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model incorporates a waveform mitigation component above the spray assembly, allowing the component to intercept rising flue gas to a certain extent and cause it to stagnate at the bottom of the assembly. Simultaneously, the spray end can inject atomized slurry into this area, resulting in a longer contact time between the flue gas and the slurry at the bottom of the waveform mitigation component. This arrangement ensures sufficient chemical reaction between sulfur oxides and nitrogen oxides in the flue gas and the slurry, significantly improving desulfurization and denitrification efficiency, thus ensuring stable and compliant emissions of treated flue gas, and enhancing the overall environmental protection effect.

[0017] 2. This invention increases the tortuosity of the flue gas rising path by setting multiple corrugated plates inside the reaction tower, thereby effectively extending the residence time of the flue gas in the reaction tower. Simultaneously, the compounds and re-condensed slurry droplets that fall after the flue gas reacts with the atomized slurry are guided and collected in the concave areas of the corrugated plates upon landing on the raised parts, and finally discharged through the flow channels set in the concave areas. This guiding and collecting mechanism effectively prevents them from accumulating on the top surface of the corrugated plates. Furthermore, since the atomizing nozzles are located below the raised parts of the corrugated plates, the raised structure itself blocks and guides the falling material, thus preventing collisions between the compounds and slurry droplets and the atomizing nozzles below.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the external outline structure of this utility model;

[0021] Figure 2 This is a top view of the reaction tower structure of this utility model;

[0022] Figure 3 This is a side sectional view of the reaction tower of this utility model;

[0023] Figure 4 This is a schematic diagram of the spray assembly structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the adjustable extraction component structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the waveform mitigation component structure of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Reaction tower; 2. Air inlet assembly; 201. Air inlet; 202. Air inlet branch pipe; 203. Air inlet main pipe; 3. Spray assembly; 301. Spray pipe; 302. Atomizing nozzle; 303. Connecting pipe; 304. Transport pipe; 4. Adjustable extraction assembly; 401. Extraction pipe; 402. Rubber sealing gasket; 403. Float; 5. Waveform reduction assembly; 501. Mounting ring; 502. Waveform plate; 503. Flow channel; 6. Arc-shaped cover; 7. Flue gas outlet; 8. Discharge pipe; 9. Support frame. Detailed Implementation

[0028] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0029] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0030] Please see Figures 1-6 As shown, this utility model is a flue gas desulfurization and denitrification spray device, including a reaction tower 1. An air inlet component 2 is provided on the outer surface of the reaction tower 1. A spray component 3 and an adjustable extraction component 4 are provided inside the reaction tower 1. The spray component 3 and the adjustable extraction component 4 are connected together. The spray end of the spray component 3 is arranged facing upward. A waveform damping component 5 is provided on the top of the spray component 3.

[0031] The air intake assembly 2 is used to transport the flue gas to the lower side of the spray assembly 3, and the waveform reduction assembly 5 is used to guide the slurry sprayed from the flue gas spray assembly 3 so that the flue gas and slurry come into contact multiple times on the lower side of the waveform reduction assembly 5.

[0032] The flue gas is transported to the interior of the reaction tower 1 through the air intake assembly 2. At this time, the flue gas can drift upward. When the flue gas comes into contact with the waveform reduction assembly 5, the flue gas drifts under the guidance of the waveform reduction assembly 5. At the same time, the adjustable extraction assembly 4 extracts the slurry inside the reaction tower 1 into the interior of the spray assembly 3, and causes several spray ends to spray the slurry in an atomized form onto the waveform reduction assembly 5, so that the flue gas here comes into contact with the atomized slurry and reacts.

[0033] By installing a waveform reduction component 5 above the spray assembly 3, the waveform reduction component 5 can intercept the rising flue gas to a certain extent and cause it to stagnate at the bottom of the assembly. Simultaneously, the spray end can spray atomized slurry into this area, resulting in a longer contact time between the flue gas and the slurry at the bottom of the waveform reduction component 5. This arrangement allows for a sufficient chemical reaction between sulfur oxides and nitrogen oxides in the flue gas and the slurry, significantly improving desulfurization and denitrification efficiency, thus ensuring stable and compliant emissions of the treated flue gas, and enhancing the overall environmental protection effect.

[0034] In one embodiment, the air intake assembly 2 includes an air inlet 201, which is provided with multiple air inlets 201 on the circumference of the outer surface of the reaction tower 1. A plurality of air intake branch pipes 202 are fixedly installed on the outer surface of the reaction tower 1 corresponding to the air inlets 201. An air intake main pipe 203 is provided on the outer surface of the reaction tower 1, and the plurality of air intake branch pipes 202 are fixedly connected to the air intake main pipe 203.

[0035] The main intake pipe 203 is connected to the external flue. The flue gas inside the flue flows into the main intake pipe 203 and is then split and flows into several intake branch pipes 202. This allows the flue gas inside the main intake pipe 203 to flow into the reaction tower 1 in multiple streams through several intake ports 201. Since there are multiple intake ports 201 arranged in a circular array inside the reaction tower 1, the flue gas can be evenly distributed inside the reaction tower 1.

[0036] In one embodiment, the spray assembly 3 includes a spray pipe 301, several spray pipes 301 are fixedly installed inside the reaction tower 1, several atomizing nozzles 302 are fixedly connected to the outer surface of the spray pipes 301, a connecting pipe 303 is provided on the outer surface of the reaction tower 1, one end of several spray pipes 301 passes through the reaction tower 1 and is fixedly connected to the connecting pipe 303, a transport pipe 304 is fixedly connected to the outer surface of the connecting pipe 303, and the bottom end of the transport pipe 304 extends into the interior of the reaction tower 1.

[0037] A pump is installed on the outer surface of the transport pipe 304. The pump can extract the slurry at the bottom of the reaction tower 1 through the transport pipe 304. The extracted slurry can flow sequentially into the interior of several connecting pipes 303 through the transport pipe 304. At the same time, the slurry inside the connecting pipes 303 is sequentially distributed into the interior of several spray pipes 301, so that several atomizing nozzles 302 can spray the slurry in an atomized form. The compounds generated by the reaction of the atomized slurry with sulfur oxides and nitrogen oxides in the flue gas can drip into the interior of the slurry at the bottom of the reaction tower 1. At the same time, the compounds can undergo stratification inside the slurry and directly accumulate at the bottom of the reaction tower 1.

[0038] In one embodiment, the adjustable extraction component 4 includes an extraction tube 401 disposed inside the reaction tower 1. The extraction tube 401 is movably connected to a transport pipe 304. A rubber sealing gasket 402 is movably connected inside the transport pipe 304. The rubber sealing gasket 402 is fixedly connected to the extraction tube 401. A float 403 is fixedly connected to the outer surface of the extraction tube 401.

[0039] The float 403 can float on the surface of the slurry inside the reaction tower 1, while the bottom end of the extraction pipe 401, supported by the float 403, remains at the slurry surface. As the slurry inside the reaction tower 1 decreases, the float 403 drives the bottom end of the extraction pipe 401 to move downwards, while the top end of the extraction pipe 401 drives the rubber sealing gasket 402 to move inside the transport pipe 304. This configuration ensures that the extraction pipe 401 can always extract slurry, and the bottom end of the extraction pipe 401 maintains a certain distance from the compound deposited at the bottom of the slurry, effectively preventing the extraction pipe 401 from extracting the deposited compound. The rubber sealing gasket 402 allows the length between the extraction pipe 401 and the transport pipe 304 to be adjusted according to changes in the slurry level, while also ensuring a tight seal between the extraction pipe 401 and the transport pipe 304.

[0040] In one embodiment, the waveform reduction component 5 includes a mounting ring 501, which is fixedly mounted on the inner wall of the reaction tower 1. A waveform plate 502 is fixedly connected to the inner wall of the mounting ring 501. The atomizing nozzle 302 is disposed on the lower side of the upwardly protruding waveform plate 502. A flow groove 503 is provided at the downwardly recessed position of the waveform plate 502.

[0041] When the flue gas reaches the bottom of the corrugated plate 502, it can drift in a wave-like pattern at the bottom of the corrugated plate 502 under the guidance of the plate. When the flue gas reaches the interior of the flow channel 503, it can directly pass through the corrugated plate 502. During this process, the atomizing nozzle 302 can spray atomized slurry onto the bottom of the corrugated plate 502, allowing the atomized slurry to contact the flue gas drifting at the bottom of the plate and undergo a chemical reaction. Multiple corrugated plates 502 are installed inside the reaction tower 1. When the flue gas at the top reacts with the atomized slurry... After the biochemical reaction produces a compound, the compound can fall directly onto the lower corrugated plate 502. Simultaneously, the upward-protruding part of the corrugated plate 502 guides the compound, allowing it to fall into the downward-recessed part of the corrugated plate 502 and then flow down through the flow channel 503. This design effectively prevents the compound and the re-aggregated slurry from accumulating at the top of the corrugated plate 502. Furthermore, since the atomizing nozzle 302 is located on the lower side of the upward-protruding corrugated plate 502, the falling compound and the re-aggregated slurry will not collide with the atomizing nozzle.

[0042] In one embodiment, for the reaction tower 1 described above, an arc-shaped cover 6 is fixedly installed on the top of the reaction tower 1, and a flue gas outlet 7 is fixedly connected to the top of the arc-shaped cover 6.

[0043] After undergoing multiple reactions, the flue gas can drift to the arc-shaped cover 6. At this point, the treated flue gas can converge to the flue gas outlet 7 under the guidance of the arc-shaped cover 6, and be discharged from the inside of the reaction tower 1 under the guidance of the flue gas outlet 7.

[0044] In one embodiment, the bottom of the reaction tower 1 is conical, a discharge pipe 8 is fixedly connected to the bottom of the reaction tower 1, and a support frame 9 is fixedly connected to the outer surface of the reaction tower 1.

[0045] When too much compound accumulates at the bottom of reaction tower 1, discharge pipe 8 can be opened, allowing the compound and some slurry accumulated at the bottom of reaction tower 1 to be discharged from discharge pipe 8; a feed pipe is fixedly connected to the outer surface of reaction tower 1, through which slurry can be fed into the interior of reaction tower 1.

[0046] Through the above technical solution, 1. by setting a waveform reduction component 5 above the spray component 3, the waveform reduction component 5 can intercept the rising flue gas to a certain extent and cause it to stagnate at the bottom of the component. At the same time, the spray end can spray atomized slurry into this area, thereby making the contact time between the flue gas and the slurry at the bottom of the waveform reduction component 5 longer. The above configuration allows sulfur oxides and nitrogen oxides in the flue gas to undergo a full chemical reaction with the slurry, significantly improving desulfurization and denitrification efficiency, thereby ensuring stable emission of treated flue gas that meets emission standards, and enhancing the overall environmental protection effect. 2. By setting multiple corrugated plates 502 inside the reaction tower 1, the tortuosity of the flue gas rising path is increased, and the residence time of the flue gas in the reaction tower 1 is effectively extended. At the same time, the compounds falling after the flue gas reacts with the atomized slurry and the re-condensed slurry droplets fall onto the raised part of the corrugated plate 502, and are then guided and collected in its concave area, and finally discharged through the flow channel 503 set in the concave area. This flow guiding and collection mechanism effectively prevents them from accumulating on the top surface of the corrugated plate. In addition, since the atomizing nozzle 302 is located below the raised part of the corrugated plate 502, the raised structure itself forms a blockage and guide for the falling objects, thereby avoiding collision between the compounds and slurry droplets and the atomizing nozzle 302 below.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A flue gas desulfurization and denitrification spray device, comprising a reaction tower (1), characterized in that, An air inlet assembly (2) is provided on the outer surface of the reaction tower (1). A spray assembly (3) and an adjustable extraction assembly (4) are provided inside the reaction tower (1). The spray assembly (3) and the adjustable extraction assembly (4) are connected together. The spray end of the spray assembly (3) is set upward. A waveform damping assembly (5) is provided on the top of the spray assembly (3). The air intake assembly (2) is used to transport the flue gas to the lower side of the spray assembly (3), and the waveform reduction assembly (5) is used to guide the slurry sprayed by the flue gas spray assembly (3) so that the flue gas and slurry come into contact multiple times on the lower side of the waveform reduction assembly (5).

2. The flue gas desulfurization and denitrification spray device according to claim 1, characterized in that, The air intake assembly (2) includes an air inlet (201), and multiple air inlets (201) are provided on the outer surface of the reaction tower (1). Several air intake branch pipes (202) are fixedly installed on the outer surface of the reaction tower (1) corresponding to the air inlets (201). An air intake main pipe (203) is provided on the outer surface of the reaction tower (1). Several air intake branch pipes (202) are fixedly connected to the air intake main pipe (203).

3. The flue gas desulfurization and denitrification spray device according to claim 1, characterized in that, The spray assembly (3) includes spray pipes (301), several of which are fixedly installed inside the reaction tower (1). Several atomizing nozzles (302) are fixedly connected to the outer surface of the spray pipes (301). A connecting pipe (303) is provided on the outer surface of the reaction tower (1). One end of several spray pipes (301) passes through the reaction tower (1) and is fixedly connected to the connecting pipe (303). A transport pipe (304) is fixedly connected to the outer surface of the connecting pipe (303). The bottom end of the transport pipe (304) extends into the interior of the reaction tower (1).

4. The flue gas desulfurization and denitrification spray device according to claim 3, characterized in that, The adjustable extraction component (4) includes an extraction tube (401), which is disposed inside the reaction tower (1). The extraction tube (401) is movably connected to the transport tube (304). A rubber sealing gasket (402) is movably connected inside the transport tube (304). The rubber sealing gasket (402) is fixedly connected to the extraction tube (401). A float (403) is fixedly connected to the outer surface of the extraction tube (401).

5. The flue gas desulfurization and denitrification spray device according to claim 3, characterized in that, The waveform slowing component (5) includes a mounting ring (501), which is fixedly installed on the inner wall of the reaction tower (1). A wave plate (502) is fixedly connected to the inner wall of the mounting ring (501). The atomizing nozzle (302) is located on the lower side of the upward protrusion of the wave plate (502). A flow groove (503) is provided at the downward recessed position of the wave plate (502).

6. The flue gas desulfurization and denitrification spray device according to claim 1, characterized in that, An arc-shaped cover (6) is fixedly installed on the top of the reaction tower (1), and a flue gas outlet (7) is fixedly connected to the top of the arc-shaped cover (6).

7. The flue gas desulfurization and denitrification spray device according to claim 1, characterized in that, The bottom of the reaction tower (1) is conical, and a discharge pipe (8) is fixedly connected to the bottom of the reaction tower (1). A support frame (9) is fixedly connected to the outer surface of the reaction tower (1).

Images