Biogas treatment desulfurization device convenient to clean

Abstract

The utility model provides a conveniently cleaned desulfurization device for biogas treatment, which comprises a desulfurization tower provided with a smoke outlet, a demister arranged in the desulfurization tower close to the smoke outlet, and a spray cleaning device arranged in the desulfurization tower below the demister, a filler layer and a precipitation layer are sequentially arranged below the spray cleaning device, and a rotational flow plate is arranged between the filler layer and the precipitation layer; a rotating motor is mounted at the bottom end of the desulfurizing tower, and the driving end of the rotating motor extends into the desulfurizing tower and is connected with a crusher through a bearing assembly. The water flow conveyed into the spray head through the conveying pipe is accelerated under the action of the rotational flow blades and enters the spray head pipe through the rotational flow blades, the flow speed of the water flow is accelerated under the cooperation of the spiral blades, meanwhile, the water flow is guided to rotate in the specific direction, and then the water flow sprayed out of the spraying holes is sprayed in a mist shape; therefore, the zinc sulfide particles can be effectively prevented from being blocked in the precipitation layer.

Description

Technical Field

[0001] This utility model belongs to the field of desulfurization technology, and specifically relates to a desulfurization device for biogas treatment that is easy to clean. Background Technology

[0002] Existing desulfurization towers consist of a tower body, a packing layer, a spray system, and a demister. The tower body is typically made of corrosion-resistant materials to ensure long-term use. The packing layer is composed of different materials to increase the contact area between biogas and the alkaline solution. The spray system ensures sufficient contact between the biogas and the solution by spraying the alkaline solution, while the demister removes water mist and impurities from the biogas. During the desulfurization process, zinc oxide is gradually converted into zinc sulfide.

[0003] The existing spray system installed in the desulfurization tower mainly works by spraying liquid to ensure that the gas and adsorbent come into full contact. However, the existing spray system has insufficient cleaning ability, which means that the zinc sulfide particles formed cannot be discharged in time and accumulate in the desulfurization tower, thus affecting the desulfurization efficiency and even causing equipment blockage.

[0004] Therefore, how to solve the defects in the existing technology has become one of the urgent problems to be solved in the field of desulfurization technology. Utility Model Content

[0005] In view of the problems existing in the background technology, the present invention provides a desulfurization device for biogas treatment that is easy to clean, including a desulfurization tower with a flue gas outlet, a demister installed inside the desulfurization tower near the flue gas outlet, a spray cleaning device installed inside the desulfurization tower below the demister, and a packing layer and a sedimentation layer arranged sequentially below the spray cleaning device, with a swirl plate arranged between the packing layer and the sedimentation layer; a rotary motor is installed at the bottom of the desulfurization tower, and the drive end of the rotary motor extends into the desulfurization tower and is connected to a crusher through a bearing assembly.

[0006] Optionally, the spray cleaning device includes a high-pressure delivery pump, the output pipe of which is connected to a second connector, and is connected to a connecting pipe and a second delivery pipe through the second connector. The connecting pipe is provided with a first connector, and is connected to a first delivery pipe and a third delivery pipe through the first connector.

[0007] Optionally, the first, second, and third conveying pipes all pass through the desulfurization tower body and extend into the desulfurization tower.

[0008] The first conveying pipe and the second conveying pipe are arranged parallel to each other inside the desulfurization tower, and the third conveying pipe is installed at an angle of 15°.

[0009] Optionally, multiple sets of nozzles are connected to the first, second, and third conveying pipes, and the multiple sets of nozzles are evenly distributed along their transverse direction.

[0010] Optionally, the nozzle includes a reservoir, and the reservoir is provided with a nozzle tube connected thereto. Multiple sets of swirling blades are installed inside the reservoir and are evenly distributed around its circumference. The outlet end of the reservoir is connected to the nozzle tube, and a spiral tube is provided inside the nozzle tube, and spiral blades that extend continuously along its longitudinal direction are provided on the spiral tube.

[0011] Optionally, a spray head connected to the nozzle pipe is installed at the other end of the spiral blade. The spray head is provided with blades integrated with it. Multiple sets of blades are arranged, and the blades extend continuously toward the nozzle pipe.

[0012] The spray head has multiple sets of spray holes along its circumference.

[0013] In summary, the beneficial effects of this utility model are:

[0014] This invention utilizes a spray cleaning device. During operation, the first and second conveying pipes evenly distribute the water flow, preventing it from concentrating at a certain height. A third, inclined conveying pipe further delivers the water to the nozzles. The water entering the storage tank is accelerated by the swirling blades, creating a strong vortex flow. This accelerated water then enters the nozzle pipe through the swirling blades, where the spiral blades further accelerate the flow and guide it in a specific direction, resulting in a mist-like spray that effectively prevents zinc sulfide particles from clogging the sediment layer. The zinc sulfide particles are then discharged through the sediment layer into the desulfurization tower. Simultaneously, a rotating motor drives a crusher, further preventing the zinc sulfide particles from settling and ensuring they are effectively discharged through the desulfurization tower's discharge pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a desulfurization device for biogas treatment that is easy to clean.

[0016] Figure 2 This is a schematic diagram of the spray cleaning device structure of an embodiment of a desulfurization device for biogas treatment that is easy to clean.

[0017] Figure 3 This is a schematic diagram of the nozzle structure of an embodiment of a desulfurization device for biogas treatment that is easy to clean according to this utility model.

[0018] Figure 4This is a schematic diagram of the nozzle structure of an embodiment of a desulfurization device for biogas treatment that is easy to clean.

[0019] Figure label:

[0020] 10. Smoke outlet;

[0021] 20. Desulfurization tower;

[0022] 30. Demister;

[0023] 401. First delivery pipe; 402. Third delivery pipe; 403. First connector; 404. Second connector; 405. Second delivery pipe;

[0024] 50. High-pressure water pump;

[0025] 601. Rotary motor; 602. Crusher;

[0026] 70. Swirl plate

[0027] 801. Sediment layer; 802. Packing layer;

[0028] 90. Nozzle; 901. Nozzle tube; 902. Swirl blade; 903. Container; 904. Spray head; 905. Blade; 906. Spray hole; 907. Spiral blade; 908. Spiral tube. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to facilitate a more thorough understanding of the present utility model and to fully convey the concept of the present utility model to those skilled in the art.

[0030] In the description of this specification, the references to terms such as "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. 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 a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0031] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Please see Figure 1-4 As shown, this embodiment provides a desulfurization device for biogas treatment that is easy to clean, including a desulfurization tower 20. The desulfurization tower 20 is provided with an inlet for conveying biogas into the tower body. The desulfurization tower 20 also includes an outlet 10. A demister 30 is provided inside the desulfurization tower 20 near the outlet 10. In practical applications, when biogas passes through the spray cleaning device, when it flows through the demister 30, the mist in the biogas is intercepted and removed by the baffle of the demister due to inertia, ensuring that the purified biogas does not contain water droplets when it is discharged.

[0033] A spray cleaning device is installed inside the desulfurization tower 20 located below the demister 30. A packing layer 802 and a sedimentation layer 801 are arranged sequentially below the spray cleaning device. The packing layer 802 is located at the bottom of the spray cleaning device, mainly to increase the liquid-gas contact area, thereby improving the gas absorption efficiency. At the same time, the structure in the packing can make the biogas distribution more uniform, ensuring that the biogas and desulfurization liquid are fully contacted.

[0034] At this point, the biogas, after sufficient contact, enters the swirl plate 70 located between the packing layer 802 and the sedimentation layer 801. The airflow is regulated by the swirl plate 70, allowing the gas to effectively pass through the packing layer and come into contact with the liquid, thereby improving the desulfurization efficiency. The gas passing through the swirl plate 70 enters the sedimentation layer 801 located below the swirl plate 70. After being processed by the packing layer, sulfur dioxide reacts with the desulfurizing agent to generate precipitates such as zinc sulfide, which adhere to the sedimentation layer 801 and gradually accumulate to form solid particles. The solid particles enter the desulfurization tower below through the cleaning holes of the sedimentation layer.

[0035] In application, the spray system installed inside the desulfurization tower primarily works by spraying liquid to ensure sufficient contact between the gas and the adsorbent. However, existing spray systems often lack sufficient cleaning capacity, resulting in the accumulation of zinc sulfide particles within the tower. This accumulation affects desulfurization efficiency and can even cause equipment blockage. For solutions to these technical problems, please refer to [link to relevant documentation]. Figure 1-4As shown, the spray cleaning device also includes a high-pressure delivery pump 50, and the inlet end of the high-pressure delivery pump 50 is connected to an external storage tank (for storing liquids such as water), and the output pipe of the high-pressure delivery pump 50 is connected to a second connector 404, and the second connector 404 is connected to a connecting pipe and a second delivery pipe 405 respectively. A first connector 403 is provided on the connecting pipe, and the first delivery pipe 401 and a third delivery pipe 402 are connected to the first connector 403 respectively. The first connector 403 and the second connector 404 are both T-joints commonly used in the market.

[0036] Furthermore, the first conveying pipe 401, the second conveying pipe 405 and the third conveying pipe 402 all pass through the tower body of the desulfurization tower 20 and extend into the desulfurization tower, and the other end of the conveying pipe is fixedly installed on the tower wall by means of fastening screws or other fixed connections.

[0037] The first conveying pipe 401 and the second conveying pipe 405 located inside the desulfurization tower 20 are arranged in parallel, and the third conveying pipe 402 is installed at an angle of 15°. Multiple sets of nozzles 90 are connected to the first conveying pipe 401, the second conveying pipe 405 and the third conveying pipe 402, and the multiple sets of nozzles 90 are evenly distributed along their transverse direction.

[0038] This embodiment uses three parallel conveying pipes arranged in the upper and lower layers, and two sets of parallel first and second conveying pipes to evenly distribute the water flow, avoiding water flow concentration at a certain height. In addition, the third conveying pipe 402 is inclined, thereby increasing the spraying effect and the cleaning area.

[0039] Furthermore, the nozzle 90 includes a reservoir 903, and the reservoir 903 is provided with a nozzle tube 901 connected thereto, and is connected to a delivery tube (a first delivery tube, a second delivery tube, or a third delivery tube) through the nozzle tube 901.

[0040] Furthermore, the storage 903 is equipped with multiple sets of swirling blades 902 evenly distributed along its circumference. When water flows into the storage 903, the water flow is accelerated by the action of the multiple sets of swirling blades 902, forming a strong vortex flow, which makes the water flow distribution more uniform.

[0041] Furthermore, the outlet end of the storage device 903 is connected to the nozzle pipe 901, and a spiral tube 908 is provided inside the nozzle pipe 901, and a spiral blade 907 extending continuously along its longitudinal direction is provided on the spiral tube 908.

[0042] Furthermore, the other end of the spiral blade 907 is fixedly installed on the spray head 904 which is connected to the nozzle pipe 901, and the spray head 904 is provided with blades 905 integrated therewith, and multiple sets of blades 905 are arranged, and the blades 905 extend continuously toward the nozzle pipe.

[0043] The spray head 904 has multiple sets of spray holes 906 along its circumference.

[0044] In this embodiment, the water flowing into the reservoir 903 is accelerated by the swirl vanes 902 through the arrangement of multiple sets of swirl vanes 902, forming a strong vortex flow. The accelerated water flows into the nozzle pipe 901 through the swirl vanes, and with the cooperation of the spiral vanes 907, the flow rate of the water is further accelerated, and the water flow is guided to rotate in a specific direction. This causes the water flow sprayed through the spray hole to form a mist spray, thereby improving the cleaning efficiency; the spray effect is more delicate, the spray range is wide, and it effectively covers the cleaning surface.

[0045] Furthermore, a rotary motor 601 is fixedly installed at the bottom of the desulfurization tower 20 by fastening screws, and the drive end of the rotary motor 601 extends into the desulfurization tower 20 and is connected to the crusher 602 through a bearing assembly.

[0046] In this embodiment, the rotary motor 601 is started, and the rotary motor 601 drives the crusher to rotate.

[0047] In use, this invention uses a first and second conveying pipe to evenly distribute the water flow, preventing it from concentrating at a certain height. A third, inclined conveying pipe 402 further delivers the water to the nozzle. The water entering the storage tank 903 is accelerated by the swirl vanes 902, creating a strong vortex flow. This accelerated water then enters the nozzle pipe 901 through the swirl vanes, where the spiral vanes 907 further accelerate the flow and guide it to rotate in a specific direction. This results in a mist-like spray from the spray holes, effectively preventing zinc sulfide particles from clogging the sediment layer. The zinc sulfide particles are then discharged into the desulfurization tower through the sediment layer. Simultaneously, a rotating motor drives a crusher 602 to rotate, further preventing the zinc sulfide particles from settling and ensuring they are effectively discharged through the desulfurization tower's discharge pipe.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not restrictive. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A desulfurization device for biogas treatment that is easy to clean, characterized in that, The system includes a desulfurization tower with a flue gas outlet. A demister is installed inside the desulfurization tower near the flue gas outlet. A spray cleaning device is installed inside the desulfurization tower below the demister. A packing layer and a sedimentation layer are arranged sequentially below the spray cleaning device. A swirl plate is installed between the packing layer and the sedimentation layer. A rotary motor is installed at the bottom of the desulfurization tower, and the drive end of the rotary motor extends into the desulfurization tower and is connected to a crusher through a bearing assembly.

2. The desulfurization device for biogas treatment that is easy to clean, as described in claim 1, is characterized in that... The spray cleaning device includes a high-pressure delivery pump. The output pipe of the high-pressure delivery pump is connected to a second connector, and the second connector is connected to a connecting pipe and a second delivery pipe respectively. The connecting pipe is provided with a first connector, and the first connector is connected to a first delivery pipe and a third delivery pipe respectively.

3. The desulfurization device for biogas treatment that is easy to clean according to claim 2, characterized in that, The first, second, and third conveying pipes all pass through the desulfurization tower body and extend into the desulfurization tower. The first conveying pipe and the second conveying pipe are arranged parallel to each other inside the desulfurization tower, and the third conveying pipe is installed at an angle of 15°.

4. The desulfurization device for biogas treatment that is easy to clean according to claim 3, characterized in that, Multiple sets of nozzles are connected to the first, second, and third conveying pipes, and the multiple sets of nozzles are evenly distributed along their transverse direction.

5. The desulfurization device for biogas treatment that is easy to clean according to claim 4, characterized in that, The nozzle includes a reservoir, and a nozzle tube is provided on the reservoir and connected thereto. Multiple sets of swirling blades are installed inside the reservoir and evenly distributed along its circumference. The outlet end of the reservoir is connected to the nozzle tube, and a spiral tube is provided inside the nozzle tube, and spiral blades that extend continuously along its longitudinal direction are provided on the spiral tube.

6. The desulfurization device for biogas treatment that is easy to clean according to claim 5, characterized in that, The other end of the spiral blade is equipped with a spray head that is connected to the nozzle pipe. The spray head is provided with blades that are integrated with it. Multiple sets of blades are arranged, and the blades extend continuously toward the nozzle pipe. The spray head has multiple sets of spray holes along its circumference.

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