Self-cleaning biogas desulfurization filter

Abstract

The utility model discloses a kind of self-cleaning biogas desulfurization filters, it includes jar body, upper surface is communicated with exhaust pipe, lower surface is communicated with drain pipe, inside is provided with filter plate;Water injection component, including water injection pipe, water spray box and spray head, is set in jar body interior;Driving component, including rack, motor, shaft and scraper, is set in jar body interior;Water guide component, including inclined plate, connecting plate, water-accumulating frame and liquid guide pipe, is set in the bottom end of shaft;Gas injection component, including air inlet pipe, flow guide frame and flow guide plate, is set in jar body inner side wall.Through above-mentioned structure, setting motor can rotate shaft drive water-accumulating frame, inclined plate and connecting plate rotation, make inclined plate play the effect of fan to accelerate biogas flow efficiency, and can let surface desulfurization liquid can be evenly contacted with biogas, improve desulfurization effect and efficiency, and can guide desulfurization liquid, introduce into water-accumulating frame in direction liquid guide pipe, finally discharge through drain pipe.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization filtration technology, and in particular to a self-cleaning biogas desulfurization filter. Background Technology

[0002] Existing biogas desulfurization filters often employ static gas distribution and fixed bed or spray tower designs. The internal biogas rising path is unstable and unevenly distributed, resulting in limited contact area between the desulfurization medium and biogas, incomplete reaction, and low desulfurization efficiency with high energy consumption. Particularly when using spray desulfurization liquid, the fixed nozzle layout easily creates dead zones in airflow and liquid flow distribution. Some biogas may short-circuit without effective treatment, leading to incomplete desulfurization and the risk of hydrogen sulfide leakage. Furthermore, the filter plates used for subsequent fine filtration are easily clogged by desulfurization products or impurities during operation, requiring frequent shutdowns for manual cleaning. This not only increases maintenance costs but also affects the continuity and stability of the biogas supply system. Utility Model Content

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a self-cleaning biogas desulfurization filter. The filter is driven by a motor to rotate the same shaft, which synchronously drives the guide plate, inclined plate and scraper to move. The rotating guide plate evenly disperses the incoming gas to the bottom of the tank, solving the problem of uneven initial distribution of biogas. The rotating inclined plate acts as a guide fan, increasing the rising rate of biogas. Its surface is fully wetted by the sprayed desulfurization liquid, forming a dynamic and large-area countercurrent contact with the rising biogas, effectively eliminating the dead corners of traditional spraying and solving the technical problem of insufficient desulfurization reaction. The scraper set on the shaft can continuously scrape and clean the top filter plate, solving the problem of easy clogging of the filter plate and the need for frequent manual cleaning, thereby achieving efficient, continuous and automated desulfurization filtration.

[0004] This utility model also provides a self-cleaning biogas desulfurization filter, comprising: a tank, an exhaust pipe connected to the upper surface, a drain pipe connected to the lower surface, and a filter plate installed inside.

[0005] The water injection components, including the water injection pipe, spray box, and nozzle, are located inside the tank.

[0006] The drive components, including the frame, motor, shaft, and scraper, are located inside the tank.

[0007] The water guiding component, including an inclined plate, a connecting plate, a water collection frame, and a liquid guiding pipe, is located at the bottom end of the rotating shaft;

[0008] The air injection components, including an air inlet pipe, a guide frame, and a guide plate, are located on the inner side wall of the tank.

[0009] This utility model also has the following technical features:

[0010] In one embodiment of the present invention, there are two exhaust pipes located on both sides of the tank, the end of the water injection pipe is connected to the side surface of the water spray box, the lower surface of the water spray box is connected to the nozzle, and there are several nozzles arranged in an array on the lower surface of the water spray box.

[0011] In one embodiment of this utility model, the side surface of the water injection pipe is fixedly connected to the inner wall of the tank, the side surface of the water spray box is fixedly connected to the inner wall of the tank, the inner wall of the water spray box is rotatably connected to the side surface of the rotating shaft, and the water spray box is located directly below the filter plate.

[0012] In one embodiment of this utility model, the inner sidewall of the frame is fixedly connected to the side surface of the motor, the output end of the motor is fixedly connected to the top end of the rotating shaft, and the side surface of the rotating shaft is fixedly connected to the side surface of the scraper.

[0013] In one embodiment of this utility model, the lower surface of the frame is fixedly connected to the upper surface of the tank, the top end of the rotating shaft is rotatably connected to the top end of the tank, and the upper surface of the scraper plate is in contact with the lower surface of the filter plate.

[0014] In one embodiment of this utility model, the lower surface of the inclined plate is fixedly connected to the upper surface of the connecting plate, the lower surface of the connecting plate is fixedly connected to the upper surface of the water collection frame, and there are several inclined plates and connecting plates arranged in an array on the upper surface of the water collection frame. The inner sidewall of the water collection frame is connected to the top end of the liquid guiding pipe.

[0015] In one embodiment of this utility model, the side surface of the water collection frame is fixedly connected to the inner side wall of the tank, the ends of the inclined plate and the connecting plate are fixedly connected to the bottom end of the rotating shaft, and the upper surface of the liquid guide pipe is fixedly connected to the lower surface of the rotating shaft.

[0016] In one embodiment of this utility model, the end of the air intake pipe is connected to the inside of the guide frame, and the inner sidewall of the guide frame is rotatably connected to the side surface of the guide plate.

[0017] In one embodiment of this utility model, the connection between the air inlet pipe and the guide frame is fixedly connected to the inner side wall of the tank, the side surface of the guide frame is fixedly connected to the inner side wall of the tank, the end of the guide plate is fixedly connected to the bottom end of the liquid guide pipe, the guide plate has several and is arrayed at the bottom end of the liquid guide pipe, and the upper surface of the guide frame and the inside of the water collection frame are provided with several matching through grooves.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] Equipped with a motor that rotates a shaft, which in turn rotates a liquid guide pipe, causing the guide plate on its side surface to rotate. This ensures that the biogas injected into the guide frame through the air inlet pipe is evenly guided to several through-slots in the guide frame, allowing the biogas to be evenly distributed inside the tank and rise steadily. The shaft also rotates an inclined plate, a connecting plate, and a water collection frame, making the inclined plate act like a fan, guiding the biogas upwards more quickly. Desulfurization liquid is injected into the spray box through a water injection pipe and sprayed onto the inclined plate through nozzles, ensuring that the desulfurization liquid on the inclined plate surface comes into even contact with the biogas, performing uniform desulfurization of the biogas and preventing biogas leakage from dead corners of the nozzles. Finally, when the biogas is filtered through the filter plate, the filter plate can be scraped off by a scraper on the side surface of the shaft, completing the automatic cleaning of the filter plate. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0021] Figure 1 This is an overall structural diagram of the self-cleaning biogas desulfurization filter of this utility model;

[0022] Figure 2 This is a structural diagram showing the connection relationship between the water guiding component and the gas injection component of the self-cleaning biogas desulfurization filter of this utility model.

[0023] Figure 3 This is a front cross-sectional view of the self-cleaning biogas desulfurization filter of this utility model;

[0024] Figure 4 This utility model relates to a self-cleaning biogas desulfurization filter. Figure 3 Structural diagram at point A in the middle.

[0025] Legend:

[0026] 1. Tank body; 11. Exhaust pipe; 12. Drain pipe; 13. Filter plate;

[0027] 2. Water injection components; 21. Water injection pipe; 22. Spray box; 23. Spray nozzle;

[0028] 3. Drive components; 31. Frame; 32. Motor; 33. Shaft; 34. Scraper;

[0029] 4. Water guiding components; 41. Inclined plate; 42. Connecting plate; 43. Water collection frame; 44. Liquid guiding pipe; 45. Through groove;

[0030] 5. Air injection components; 51. Air inlet pipe; 52. Air guide frame; 53. Air guide plate. Detailed Implementation

[0031] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0032] It should be noted that the core defects of an existing self-cleaning biogas desulfurization filter are: uneven distribution of biogas within the desulfurization tank, insufficient contact with the desulfurization liquid leading to low desulfurization efficiency; dead zones in the fixed spraying method, easily causing biogas short circuits and hydrogen sulfide leakage; and easy clogging of the filter plates, requiring frequent shutdowns for manual cleaning, affecting the continuous and stable operation of the system. To address these issues, a self-cleaning biogas desulfurization filter is proposed, comprising: a tank 1, with an exhaust pipe 11 connected to the upper surface and a drain pipe 12 connected to the lower surface. 2. The tank 1 is equipped with a filter plate 13; the water injection component 2, including a water injection pipe 21, a water spray box 22 and a nozzle 23, is located inside the tank 1; the drive component 3, including a frame 31, a motor 32, a rotating shaft 33 and a scraper 34, is located inside the tank 1; the water guiding component 4, including an inclined plate 41, a connecting plate 42, a water collection frame 43 and a liquid guiding pipe 44, is located at the bottom end of the rotating shaft 33; the air injection component 5, including an air inlet pipe 51, a flow guide frame 52 and a flow guide plate 53, is located on the inner side wall of the tank 1.

[0033] In one embodiment, see Figure 3 and Figure 4 The exhaust pipe 11 has two pipes located on both sides of the tank body 1. The end of the water injection pipe 21 is connected to the side surface of the water spray box 22. The lower surface of the water spray box 22 is connected to the nozzle 23. The nozzle 23 has several nozzles and is arranged in an array on the lower surface of the water spray box 22.

[0034] Specifically, the two exhaust pipes 11 can quickly discharge the desulfurized biogas, and the water injection pipe 21 can guide the desulfurized liquid into the water spray box 22, and then spray it out through the nozzle 23.

[0035] In one embodiment, see Figure 3 and Figure 4 The side surface of the water injection pipe 21 is fixedly connected to the inner wall of the tank 1, the side surface of the spray box 22 is fixedly connected to the inner wall of the tank 1, the inner wall of the spray box 22 is rotatably connected to the side surface of the rotating shaft 33, and the spray box 22 is located directly below the filter plate 13.

[0036] Specifically, the water injection pipe 21 and the water spray box 22 are fixed so that the rotating shaft 33 will not drive the water spray box 22 to rotate, so that the nozzle 23 on the lower surface of the water spray box 22 can stably spray the desulfurization liquid directly below the filter plate 13.

[0037] In one embodiment, see Figure 3The inner wall of the frame 31 is fixedly connected to the side surface of the motor 32, the output end of the motor 32 is fixedly connected to the top of the rotating shaft 33, and the side surface of the rotating shaft 33 is fixedly connected to the side surface of the scraper 34.

[0038] Specifically, the motor 32 is fixed so that the rotating shaft 33 can be rotated, which in turn drives the scraper 34 on its side surface to rotate.

[0039] In one embodiment, see Figure 3 The lower surface of the frame 31 is fixedly connected to the upper surface of the tank 1, the top end of the rotating shaft 33 is rotatably connected to the top end of the tank 1, and the upper surface of the scraper 34 is in contact with the lower surface of the filter plate 13.

[0040] Specifically, the frame 31 is fixed so that the motor 32 can work stably and the rotating shaft 33 can rotate stably, so that the scraper 34 can automatically clean the filter plate 13.

[0041] In one embodiment, see Figure 3 The lower surface of the inclined plate 41 is fixedly connected to the upper surface of the connecting plate 42, and the lower surface of the connecting plate 42 is fixedly connected to the upper surface of the water collection frame 43. There are several inclined plates 41 and connecting plates 42, which are arranged in an array on the upper surface of the water collection frame 43. The inner sidewall of the water collection frame 43 is connected to the top of the liquid guide tube 44.

[0042] Specifically, the inclined plate 41 can be connected to the water collection frame 43 through the connecting plate 42, so that the desulfurization liquid on its side surface can flow into the water collection frame 43 and be guided to the liquid guide pipe 44.

[0043] In one embodiment, see Figure 3 The side surface of the water collection frame 43 is fixedly connected to the inner wall of the tank 1, the ends of the inclined plate 41 and the connecting plate 42 are fixedly connected to the bottom end of the rotating shaft 33, and the upper surface of the liquid guide pipe 44 is fixedly connected to the lower surface of the rotating shaft 33.

[0044] Specifically, the water collection frame 43 is fixed so that the rotating shaft 33 can drive the inclined plate 41, the connecting plate 42 and the liquid guide tube 44 to rotate.

[0045] In one embodiment, see Figure 2 The end of the air intake pipe 51 is connected to the inside of the guide frame 52, and the inner wall of the guide frame 52 is rotatably connected to the side surface of the guide plate 53.

[0046] Specifically, the intake pipe 51 can guide biogas to the guide frame 52, and the guide plate 53 can rotate stably.

[0047] In one embodiment, see Figure 1 and Figure 2The air inlet pipe 51 is fixedly connected to the inner wall of the tank 1 at the connection between the air inlet pipe 51 and the guide frame 52. The side surface of the guide frame 52 is fixedly connected to the inner wall of the tank 1. The end of the guide plate 53 is fixedly connected to the bottom end of the liquid guide pipe 44. There are several guide plates 53 arranged in an array at the bottom end of the liquid guide pipe 44. Several matching through grooves 45 are opened on the upper surface of the guide frame 52 and inside the water collection frame 43.

[0048] Specifically, the air inlet pipe 51 and the guide frame 52 are fixed so that the liquid guide pipe 44 can drive the guide plate 53 to rotate and guide the biogas evenly.

[0049] Working principle: During operation, the starter motor 32 rotates the shaft 33, causing the guide pipe 44 to rotate. This, in turn, rotates the guide plate 53 on its side surface, ensuring that the biogas injected into the guide frame 52 through the air inlet pipe 51 is evenly guided to the several slots 45 of the guide frame 52. This allows the biogas to be evenly distributed and rise steadily inside the tank 1. Furthermore, the shaft 33 rotates the inclined plate 41, connecting plate 42, and water collection frame 43, causing the inclined plate 41 to act as a fan, guiding the biogas upwards more quickly. Desulfurization liquid is injected into the water spray box 22 through the water injection pipe 21 and sprayed onto the inclined plate 41 through the nozzle 23, so that the desulfurization liquid on the surface of the inclined plate 41 comes into uniform contact with the biogas, and the biogas is desulfurized evenly. This prevents the biogas from leaking from the dead corner of the nozzle 23 and allows the liquid to enter the liquid guide pipe 44 and be discharged through the drain pipe 12. Finally, when the biogas is filtered through the filter plate 13, the scraper 34 on the side surface of the rotating shaft 33 can also scrape the filter plate 13, completing the automatic cleaning of the filter plate 13. Finally, the biogas is discharged through the exhaust pipe 11.

[0050] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A self-cleaning biogas desulfurization filter, characterized in that, include: The tank (1) has an exhaust pipe (11) connected to its upper surface and a drain pipe (12) connected to its lower surface, and a filter plate (13) installed inside. The water injection component (2), including a water injection pipe (21), a water spray box (22) and a nozzle (23), is located inside the tank body (1); The drive unit (3), including a frame (31), a motor (32), a rotating shaft (33) and a scraper (34), is disposed inside the tank body (1); The water guiding component (4), including an inclined plate (41), a connecting plate (42), a water collection frame (43) and a liquid guiding pipe (44), is located at the bottom end of the rotating shaft (33); The air injection component (5) includes an air inlet pipe (51), a guide frame (52) and a guide plate (53), which are disposed on the inner side wall of the tank body (1).

2. The self-cleaning biogas desulfurization filter according to claim 1, characterized in that, The exhaust pipe (11) has two and is located on both sides of the tank (1). The end of the water injection pipe (21) is connected to the side surface of the water spray box (22). The lower surface of the water spray box (22) is connected to the nozzle (23). The nozzle (23) has several and is distributed in an array on the lower surface of the water spray box (22).

3. The self-cleaning biogas desulfurization filter according to claim 1, characterized in that, The side surface of the water injection pipe (21) is fixedly connected to the inner wall of the tank (1), the side surface of the water spray box (22) is fixedly connected to the inner wall of the tank (1), the inner wall of the water spray box (22) is rotatably connected to the side surface of the rotating shaft (33), and the water spray box (22) is located directly below the filter plate (13).

4. The self-cleaning biogas desulfurization filter according to claim 1, characterized in that, The inner wall of the frame (31) is fixedly connected to the side surface of the motor (32), the output end of the motor (32) is fixedly connected to the top of the rotating shaft (33), and the side surface of the rotating shaft (33) is fixedly connected to the side surface of the scraper (34).

5. A self-cleaning biogas desulfurization filter according to claim 1, characterized in that, The lower surface of the frame (31) is fixedly connected to the upper surface of the tank (1), the top end of the rotating shaft (33) is rotatably connected to the top end of the tank (1), and the upper surface of the scraper (34) is in contact with the lower surface of the filter plate (13).

6. A self-cleaning biogas desulfurization filter according to claim 1, characterized in that, The lower surface of the inclined plate (41) is fixedly connected to the upper surface of the connecting plate (42), and the lower surface of the connecting plate (42) is fixedly connected to the upper surface of the water collection frame (43). The inclined plate (41) and the connecting plate (42) are several and arranged in an array on the upper surface of the water collection frame (43). The inner sidewall of the water collection frame (43) is connected to the top of the liquid guide pipe (44).

7. A self-cleaning biogas desulfurization filter according to claim 1, characterized in that, The side surface of the water collection frame (43) is fixedly connected to the inner wall of the tank (1), the ends of the inclined plate (41) and the connecting plate (42) are fixedly connected to the bottom end of the rotating shaft (33), and the upper surface of the liquid guide pipe (44) is fixedly connected to the lower surface of the rotating shaft (33).

8. A self-cleaning biogas desulfurization filter according to claim 1, characterized in that, The end of the air intake pipe (51) is connected to the inside of the guide frame (52), and the inner side wall of the guide frame (52) is rotatably connected to the side surface of the guide plate (53).

9. A self-cleaning biogas desulfurization filter according to claim 1, characterized in that, The air inlet pipe (51) is fixedly connected to the inner wall of the tank (1) at the connection point with the guide frame (52). The side surface of the guide frame (52) is fixedly connected to the inner wall of the tank (1). The end of the guide plate (53) is fixedly connected to the bottom end of the liquid guide pipe (44). The guide plate (53) has several and is distributed in an array at the bottom end of the liquid guide pipe (44). The upper surface of the guide frame (52) and the inside of the water collection frame (43) are provided with several matching through grooves (45).

Images