Semi-closed semi-underground sewage treatment system

Abstract

The application discloses a semi-closed semi-underground sewage treatment system and relates to the technical field of municipal sewage treatment engineering. The sewage treatment system comprises a sewage treatment plant main body, the sewage treatment plant main body is partially buried under the ground and partially arranged above the ground, a ground park is arranged on the top of the sewage treatment plant main body, one side or both sides of the sewage treatment plant main body are arranged as closed sides, and a plurality of light skylights are arranged on the top of the closed sides; and a plurality of adjustable flow guide grilles are arranged on the non-closed side of the sewage treatment plant main body. The sewage treatment system is designed with a closed side inclined slope body, the ground and the roof park are connected into one, a visitor is in the water plant but cannot see the plant, there is no evacuation stairwell in the semi-underground sewage plant, the evacuation stairwell has no intersection with the water plant operation, a better landscape effect than the semi-underground sewage plant is achieved, and the flow guide grilles and the driving mechanism are designed, the angle of the flow guide grilles can be adjusted according to the test value of a wind direction and speed instrument, and thus the air volume requirement of space ventilation is met.

Description

Technical Field

[0001] This invention relates to the field of municipal wastewater treatment engineering technology, specifically to a semi-enclosed, semi-underground wastewater treatment system. Background Technology

[0002] With urban development and expansion, increasing land scarcity, and growing public awareness of environmental protection, more and more cities are choosing fully underground (fully enclosed) or semi-underground sewage treatment plants, transforming the above-ground portions into landscaped or sports parks. This can meet the needs of municipal sewage treatment and provide recreational spaces for residents, but it also presents some challenges:

[0003] 1. Fully underground: Relies on artificial lighting and mechanical ventilation, resulting in high energy consumption; deep foundation pit support and fully enclosed structure lead to a 40% higher civil engineering cost compared to semi-underground; evacuation stairwells, ventilation shafts and other above-ground structures damage the integrity of the landscape.

[0004] 2. Semi-underground type: The above-ground pool and equipment are exposed, and visitors can directly observe the operation of the plant, which poses a safety hazard; fixed ventilation openings are prone to creating airflow dead zones, requiring continuous mechanical ventilation; suspended parks require separate passages, which pose a risk of people accidentally entering.

[0005] To address the aforementioned problems, this invention proposes a semi-enclosed, semi-underground sewage treatment system, providing a new solution to these technical issues. Summary of the Invention

[0006] In order to overcome the problems existing in the above-mentioned background technology, the present invention provides a semi-enclosed, semi-underground sewage treatment system that achieves landscape integration, energy saving and consumption reduction, and safe operation.

[0007] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0008] This invention proposes a semi-enclosed, semi-underground sewage treatment system, comprising a main body of a sewage treatment plant. The main body is partially buried below ground level and partially above ground level. A ground-level park is located on the top of the main body. One or both sides of the main body are designated as enclosed sides, which are constructed of reinforced concrete and are fully enclosed. Several skylights are provided on the top of the enclosed sides. Several adjustable flow guide plates are provided on the unenclosed sides of the main body, and several sets of drive mechanisms are provided to drive the flow guide plates to move.

[0009] Preferably, the enclosed side adopts an inclined slope design with soil covering the slope surface. The top of the slope connects to the ground park, and the bottom connects to the ground. The inclined slope transitions to the ground in the form of a slope or terrace. The soil covering thickness of the inclined slope meets the needs of vegetation planting.

[0010] Preferably, the air guide plate should ensure a certain light transmittance, and its strength should meet the local wind load requirements. The surface of the air guide plate can be covered with decorative materials.

[0011] Preferably, a number of guide fans are installed inside the main body of the sewage treatment plant, and a number of wind direction and speed meters are installed on the top of the main body of the sewage treatment plant.

[0012] Preferably, the skylight should meet the light transmission requirements, and the area of ​​the skylight, combined with the light transmission of the light guide pipe and the flow guide plate, can meet the lighting requirements of the underground operating level.

[0013] Preferably, each group of driving mechanisms drives several guide vanes to move. The driving mechanism includes a transmission box disposed on the top of the several guide vanes. The guide vanes are rotatably connected to the transmission box. A transmission plate is fixed on the top of the guide vanes and inside the transmission box. A transmission rod is rotatably connected to the ends of two adjacent transmission plates. Each group of transmission plates and transmission rods is arranged in an S-shaped reciprocating bend. The driving mechanism includes a first driving motor. The output end of the first driving motor is connected to a transmission shaft. The transmission shaft is fixedly connected to one of the transmission plates.

[0014] Preferably, one side of one end of the flow guide plate is provided with a sealing protrusion, and the other side away from the sealing protrusion is provided with a matching sealing groove. Two adjacent flow guide plates can overlap each other through the sealing protrusion and the sealing groove. When two adjacent flow guide plates overlap each other, the sealing protrusion is embedded in the corresponding sealing groove to seal the two adjacent flow guide plates. Preferably, the flow guide plate includes a first plate, a second plate, a third plate, and a fourth plate arranged sequentially from top to bottom. The first plate, the second plate, the third plate, and the fourth plate are inclined and staggered from each other.

[0015] Preferably, a connecting pipe is fixed to the inner side of the first grid plate, and the top of the connecting pipe passes through the transmission box; a connecting pipe is fixed to the inner side of the second grid plate, and the connecting pipe passes through the first connecting pipe and extends out; a connecting pipe is fixed to the inner side of the third grid plate, and the connecting pipe passes through the second connecting pipe and extends out; a connecting pipe is fixed to the top of the fourth grid plate, and the connecting pipe passes through the third connecting pipe and extends out.

[0016] Preferably, the drive mechanism includes a fifth drive wheel fixed to the top of the outer side of the first connecting pipe, a sixth drive wheel fixed to the top of the outer side of the second connecting pipe, a seventh drive wheel fixed to the top of the outer side of the third connecting pipe, and an eighth drive wheel fixed to the top of the outer side of the fourth connecting pipe. A first drive belt is connected to the outer side of several fifth drive wheels, a second drive belt is connected to the outer side of several sixth drive wheels, a third drive belt is connected to the outer side of several seventh drive wheels, and a fourth drive belt is connected to the outer side of several eighth drive wheels. A second drive motor, a third drive motor, a fourth drive motor, and a fifth drive motor are installed on the main body of the wastewater treatment plant and above the transmission box. The output end of the second drive motor is fixed to the first drive wheel. One of the connecting... A first drive wheel is fixed to the top outer side of the first pipe, and a first drive belt is connected to the outer side of the first drive wheel; a second drive wheel is fixed to the output end of the third drive motor, and a second drive wheel is fixed to the top outer side of one of the connecting pipes, and a second drive belt is connected to the outer side of the second drive wheel; a third drive wheel is fixed to the output end of the fourth drive motor, and a third drive wheel is fixed to the top outer side of one of the connecting pipes, and a third drive belt is connected to the outer side of the third drive wheel; a fourth drive wheel is fixed to the output end of the fifth drive motor, and a fourth drive wheel is fixed to the top outer side of one of the connecting pipes, and a fourth drive belt is connected to the outer side of the fourth drive wheel.

[0017] In summary, the advantages of this invention are:

[0018] 1. By designing a closed, sloping structure, the ground and rooftop park are integrated, allowing visitors to be in the water plant but not see the plant itself. At the same time, there are no evacuation stairwells like in a fully underground sewage treatment plant, and there is no interaction with the operation of the water plant. This achieves a better landscape effect than a fully underground sewage treatment plant.

[0019] 2. By setting up an anemometer, the wind speed and direction on site can be measured in real time. Through the design of the guide plate and drive mechanism, the angle of the guide plate can be adjusted according to the test value of the anemometer, thereby meeting the air volume requirements of space ventilation. At the same time, the open sides can meet the natural lighting requirements of most areas, while the closed sides can meet the daytime natural lighting requirements by setting up skylights on the roof.

[0020] 3. By installing guide fans inside the main body of the sewage treatment plant, the airflow in the space is ensured, and there are no dead zones.

[0021] 4. The arrangement of grid plate one, grid plate two, grid plate three, and grid plate four, combined with the structural design of the drive mechanism, allows for simultaneous and individual adjustment of the tilt angle of grid plate one, grid plate two, grid plate three, or grid plate four to adapt to different air intake requirements, greatly improving the adaptability and practicality during use.

[0022] 5. Through the design of sealing protrusions and sealing grooves, several guide grids can overlap and seal each other to form an integral sealing structure, which can effectively prevent the leakage of harmful gases inside the factory area when there are harmful gases inside the factory area. Attached Figure Description

[0023] The present application will be further explained below with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of the flow guide plate and the drive mechanism of the present invention;

[0026] Figure 3 This is a schematic diagram of the flow guide plate and the drive mechanism.

[0027] Figure 4 A schematic diagram of the structure of the sealing protrusion and the sealing groove;

[0028] Figure 5 This is a structural schematic diagram of grid plate one, grid plate two, grid plate three, and grid plate four;

[0029] Figure 6 This is a structural diagram of connecting pipe 1, connecting pipe 2, connecting pipe 3, and connecting pipe 4;

[0030] Figure 7 Schematic diagram of the drive mechanism Figure 1 ;

[0031] Figure 8 Schematic diagram of the drive mechanism Figure 2 .

[0032] Explanation of reference numerals in the attached figures:

[0033] In the picture:

[0034] 1. Main body of the wastewater treatment plant; 2. Enclosed side; 3. Flow guide grate; 31. Grate one; 32. Grate two; 33. Grate three; 34. Grate four; 35. Sealing protrusion; 36. Sealing groove; 4. Flow guide fan; 5. Transmission box; 6. Transmission plate; 7. Transmission rod; 8. First drive motor; 9. Transmission shaft; 10. Connecting pipe four; 11. Connecting pipe three; 12. Connecting pipe two; 13. Connecting pipe one; 14. Fifth transmission wheel; 15. Sixth transmission wheel; 16. Seventh transmission wheel; 17. Eighth transmission wheel; 18. 19. First transmission belt; 20. Second transmission belt; 21. Third transmission belt; 22. Fourth transmission belt; 23. First transmission pulley; 24. First drive pulley; 25. Second transmission pulley; 26. Second drive pulley; 27. Second drive belt; 28. Second drive motor; 29. ​​Third drive motor; 41. Third transmission pulley; 42. Third drive pulley; 43. Third drive belt; 44. Fourth drive motor; 45. Fourth transmission pulley; 46. Fourth drive pulley; 47. Fourth drive belt; 48. Fifth drive motor. Detailed Implementation

[0035] Based on the above-described structural features of this application, the implementation methods of this application will be further described as follows:

[0036] Example 1

[0037] Reference Figure 1-8 This embodiment provides a semi-enclosed, semi-underground wastewater treatment plant, including a main body 1. Part of the main body 1 is buried 4-6 meters below ground level, while another part is above ground. A ground-level park is located on top of the main body 1. Enclosed sides 2 are located along one or both sides of the main body 1. Enclosed sides 2 are fully enclosed structures made of reinforced concrete, and several skylights are provided on the top of the enclosed sides 2. Several adjustable flow guide plates 3 are installed on the unenclosed sides of the main body 1, and several sets of driving mechanisms are provided to drive the movement of the flow guide plates 3. The light-transmitting area of ​​the unenclosed flow guide plates 3 is greater than or equal to 85%, meeting the plant's daytime lighting needs of 70%-80%. The flow guide plates 3 provide light and ventilation, as well as decoration and aesthetics, while completely separating the visitor activity area from the plant's operating space, thus reducing project investment.

[0038] Reference Figure 1 The enclosed side 2 adopts an inclined slope design with soil covering the slope surface. The top of the slope connects to the ground park, and the bottom connects to the ground. The inclined slope transitions to the ground in the form of a slope or terrace. The soil covering thickness of the inclined slope meets the needs of vegetation planting.

[0039] The sloping slope is protected with ecological concrete and planted with local shade-tolerant vegetation (such as ferns and ivy). The traditional evacuation stairwells are eliminated, and a hidden folding emergency passage is integrated into the closed side slope, which is only used in emergencies. This eliminates the exposure of ground evacuation stairwells and equipment, creating a complete landscape park without visual interference.

[0040] The flow guide plate 3 should ensure a certain light transmittance and its strength should meet the local wind load requirements. The surface of the flow guide plate 3 can be covered with decorative materials to form a visual barrier, so that tourists can be in the water plant but not see the plant, achieving a better landscape effect than a fully underground sewage treatment plant.

[0041] The main body 1 of the wastewater treatment plant is equipped with several guide fans 4, which are controlled in zones according to wind speeds of 0.3-1.2 m / s. Dead zones are eliminated by combining computational fluid dynamics simulation. The method of eliminating dead zones by combining computational fluid dynamics simulation is existing technology and will not be described in detail here. Several wind direction and speed meters are installed on the top of the main body 1 of the wastewater treatment plant. The wind direction and speed meters adopt Doppler laser anemometers with an accuracy of ±0.2 m / s. They collect external wind speed and direction data in real time. When the external wind speed is greater than 3 m / s, the opening angle of the guide grid is less than or equal to 30°, and natural wind pressure is used to dominate the ventilation. When the air index of the wastewater treatment plant inspection space is abnormal, the fan forced exhaust mode is automatically activated.

[0042] The skylight should meet the light transmission requirements. The area of ​​the skylight, combined with the light transmission of the light guide tube and the flow guide plate 3, can meet the lighting requirements of the underground operating level.

[0043] Illuminance sensors with a range of 0-2000 lux are installed in the underground layer of the main body of the sewage treatment plant. When the solar irradiance is less than 150 lux, the lighting is activated in different zones to supplement the lighting, taking into account both equipment inspection and safety monitoring needs.

[0044] Each set of drive mechanisms drives several guide vanes 3 to move. The drive mechanism includes a transmission box 5 set on top of several guide vanes 3. The guide vanes 3 are rotatably connected to the transmission box 5. A transmission plate 6 is fixed on the top of the guide vanes 3 and inside the transmission box 5. The ends of two adjacent transmission plates 6 are rotatably connected to transmission rods 7. Each set of transmission plates 6 and transmission rods 7 are arranged in an S-shaped reciprocating bend. The drive mechanism includes a first drive motor 8. The output end of the first drive motor 8 is connected to a transmission shaft 9. The transmission shaft 9 is fixedly connected to one of the transmission plates 6. When it is necessary to adjust the angle of the guide vanes 3, the first drive motor 8 starts to drive the transmission shaft 9 to rotate, and through the transmission shaft 9, it drives the transmission plate 6 connected to it to rotate. Then, through the transmission rod 7, it drives a set of transmission plates 6 to rotate simultaneously, thereby driving a set of guide vanes 3 to rotate, thereby adjusting the angle of the guide vanes. The opening and closing angle is dynamically adjusted according to the monitoring data. The angle opening and closing range is 0° to 85°, and the air exchange rate is ensured to be no less than 12 times per hour.

[0045] The airflow guide plate 3 includes a first plate 31, a second plate 32, a third plate 33, and a fourth plate 34 arranged sequentially from top to bottom. The first plate 31, the second plate 32, the third plate 33, and the fourth plate 34 are arranged at an angle that is staggered from each other, so that the airflow guide plate 3 has more air intake angles. Compared with a single air intake angle, its air intake efficiency is better. It should be noted that the first plate 31 and the fourth plate 34 are located at the top and bottom, respectively, and the second plate 32 and the third plate 33 are located between the first plate 31 and the fourth plate 34. The length of the first plate 31 and the fourth plate 34 is longer than that of the second plate 32 and the third plate 33, so that the first plate 31 and the fourth plate 34 serve as the main air intake and light transmission distribution.

[0046] One end of the flow guide plate 3 has a sealing protrusion 35 on one side surface. The sealing protrusion 35 can be made of rubber. The other end has a matching sealing groove 36 on the side surface away from the sealing protrusion 35. Two adjacent flow guide plates 3 can overlap each other through the sealing protrusion 35 and the sealing groove 36. When two adjacent flow guide plates 3 overlap each other, the sealing protrusion 35 is embedded in the corresponding sealing groove 36 and abuts against it, thereby sealing the two adjacent flow guide plates 3. In order to improve the sealing effect, multiple sealing protrusions 35 can be set.

[0047] Example 2

[0048] The flow guide plate 3 includes a first plate 31, a second plate 32, a third plate 33, and a fourth plate 34 arranged sequentially from top to bottom. The first plate 31, the second plate 32, the third plate 33, and the fourth plate 34 are arranged at an angle that is staggered from each other.

[0049] A connecting pipe 13 is fixed inside the first grid plate 31, and the top of the connecting pipe 13 passes through the transmission box 5; a connecting pipe 2 12 is fixed inside the second grid plate 32, and the connecting pipe 2 12 passes through the connecting pipe 13 and extends out; a connecting pipe 3 11 is fixed inside the third grid plate 33, and the connecting pipe 3 11 passes through the connecting pipe 2 12 and extends out; a connecting pipe 4 10 is fixed at the top of the fourth grid plate 34, and the connecting pipe 4 10 passes through the connecting pipe 3 11 and extends out, so that the movement of the connecting pipe 1 13, the connecting pipe 2 12, the connecting pipe 3 11, and the connecting pipe 4 10 is independent of each other, thereby facilitating the individual adjustment of the tilt angle of one of the guide grid plates.

[0050] Reference Figure 5-8The drive mechanism includes a fifth drive wheel 14 fixed to the top of the outer side of connecting pipe 13, a sixth drive wheel 15 fixed to the top of the outer side of connecting pipe 2 12, a seventh drive wheel 16 fixed to the top of the outer side of connecting pipe 3 11, and an eighth drive wheel 17 fixed to the top of the outer side of connecting pipe 4 10. A first drive belt 18 is connected to the outer side of several fifth drive wheels 14, a second drive belt 19 is connected to the outer side of several sixth drive wheels 15, a third drive belt 20 is connected to the outer side of several seventh drive wheels 16, and a fourth drive belt 21 is connected to the outer side of several eighth drive wheels 17. A second drive motor 28, a third drive motor 29, a fourth drive motor 44, and a fifth drive motor 48 are installed on the main body 1 of the sewage treatment plant and above the transmission box 5. A first drive wheel 23 is fixed to the output end of the second drive motor 28, and a first drive wheel 22 is fixed to the top of the outer side of one of the connecting pipes 1 13. A first drive belt 24 is connected to the outer side of the first drive wheel 23 and the first drive wheel 22. A second drive belt 24 is fixed to the output end of the third drive motor 29. A drive wheel 26 has a second transmission wheel 25 fixed to the top of the outer side of one of the connecting pipes 12, and a second drive belt 27 is connected to the outer side of the second drive wheel 26 and the second transmission wheel 25; a third drive wheel 42 is fixed to the output end of the fourth drive motor 44, a third transmission wheel 41 is fixed to the top of the outer side of one of the connecting pipes 11, and a third drive belt 43 is connected to the outer side of the third drive wheel 42 and the third transmission wheel 41; a fourth drive wheel 46 is fixed to the output end of the fifth drive motor 48, a fourth transmission wheel 45 is fixed to the top of the outer side of one of the connecting pipes 10, and a fourth drive belt 47 is connected to the outer side of the fourth drive wheel 46 and the fourth transmission wheel 45. When it is necessary to adjust the tilt angle of the first grid plate 31, the second drive motor 28 is started to drive the first drive wheel 23 to rotate, and the first transmission wheel 22 is driven to rotate through the first drive belt 24, thereby driving the corresponding grid plate 31 to rotate. At the same time, multiple fifth transmission wheels 14 are driven to rotate through the first transmission belt 18, thereby simultaneously adjusting the tilt angle of several grid plates 31.

[0051] When it is necessary to adjust the tilt angle of the second grid plate 32, the third drive motor 29 starts to drive the second drive wheel 26 to rotate, and drives the second transmission wheel 25 to rotate through the second drive belt 27, thereby driving the corresponding second grid plate 32 to rotate. At the same time, the second transmission belt 19 drives multiple sixth transmission wheels 15 to rotate, thereby simultaneously adjusting the tilt angle of several second grid plates 32.

[0052] When it is necessary to adjust the tilt angle of the third grid plate 33, the fourth drive motor 44 starts to drive the third drive wheel 42 to rotate, and drives the third transmission wheel 41 to rotate through the third drive belt 43, thereby driving the corresponding grid plate 33 to rotate. At the same time, the third transmission belt 20 drives multiple seventh transmission wheels 16 to rotate, thereby simultaneously adjusting the tilt angle of several grid plates 33.

[0053] When it is necessary to adjust the tilt angle of the fourth grid plate 34, the fifth drive motor 48 starts to drive the fourth drive wheel 46 to rotate, and drives the fourth transmission wheel 45 to rotate through the fourth drive belt 47, thereby driving the corresponding grid plate 34 to rotate. At the same time, the fourth transmission belt 21 drives multiple eighth transmission wheels 17 to rotate, thereby simultaneously adjusting the tilt angle of several grid plates 34.

[0054] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element 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 this invention.

[0055] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] In conclusion, for those skilled in the art, any changes, modifications, substitutions, or variations made to this invention based on the guidance of this invention, without departing from the principles and spirit of this invention, still fall within the protection scope of this invention.

Claims

1. A semi-enclosed, semi-underground sewage treatment system, characterized in that: The system includes a main body (1) of a sewage treatment plant, part of which is buried below ground and part of which is above ground. A ground park is provided on the top of the main body (1). A closed side (2) is provided along one or both sides of the main body (1). The closed side (2) is a fully enclosed structure made of reinforced concrete. Several skylights are provided on the top of the closed side (2). Several adjustable flow guide plates (3) are provided on the unclosed side of the main body (1), and several sets of driving mechanisms are provided to drive the flow guide plates (3) to move. Each set of driving mechanisms drives several guide plates (3) to move. The driving mechanism includes a transmission box (5) disposed on the top of several guide plates (3). The guide plates (3) are rotatably connected to the transmission box (5). A transmission plate (6) is fixed on the top of the guide plates (3) and inside the transmission box (5). The ends of two adjacent transmission plates (6) are rotatably connected to a transmission rod (7). Each set of transmission plates (6) and transmission rods (7) are arranged in an S-shaped reciprocating bend. The driving mechanism includes a first driving motor (8). The output end of the first driving motor (8) is connected to a transmission shaft (9). The transmission shaft (9) is fixedly connected to one of the transmission plates (6). The flow guide plate (3) includes a first plate (31), a second plate (32), a third plate (33) and a fourth plate (34) arranged sequentially from top to bottom. The first plate (31), the second plate (32), the third plate (33) and the fourth plate (34) are arranged at an angle that is staggered from each other. A connecting pipe 1 (13) is fixed inside the first grid plate (31), and the top of the connecting pipe 1 (13) passes through the transmission box (5); a connecting pipe 2 (12) is fixed inside the second grid plate (32), and the connecting pipe 2 (12) passes through the connecting pipe 1 (13) and extends out; a connecting pipe 3 (11) is fixed inside the third grid plate (33), and the connecting pipe 3 (11) passes through the connecting pipe 2 (12) and extends out; a connecting pipe 4 (10) is fixed at the top of the fourth grid plate (34), and the connecting pipe 4 (10) passes through the connecting pipe 3 (11) and extends out; so that the movement of the connecting pipe 1 (13), the connecting pipe 2 (12), the connecting pipe 3 (11), and the connecting pipe 4 (10) is independent of each other, and is used to adjust the tilt angle of one of the guide grid plates individually; The drive mechanism includes a fifth drive wheel (14) fixed to the top of the outer side of the first connecting pipe (13), a sixth drive wheel (15) fixed to the top of the outer side of the second connecting pipe (12), a seventh drive wheel (16) fixed to the top of the outer side of the third connecting pipe (11), and an eighth drive wheel (17) fixed to the top of the outer side of the fourth connecting pipe (10). A first drive belt (18) is connected to the outer side of several fifth drive wheels (14), a second drive belt (19) is connected to the outer side of several sixth drive wheels (15), a third drive belt (20) is connected to the outer side of several seventh drive wheels (16), and a fourth drive belt (21) is connected to the outer side of several eighth drive wheels (17). A second drive motor (28), a third drive motor (29), a fourth drive motor (44), and a fifth drive motor (48) are installed on the main body (1) of the sewage treatment plant and above the transmission box (5). A first drive wheel (23) is fixed to the output end of the second drive motor (28). A first transmission wheel (22) is fixed to the top side, and a first drive wheel (23) is connected to the outside of the first transmission wheel (22) by a first drive belt (24); a second drive wheel (26) is fixed to the output end of the third drive motor (29), and a second transmission wheel (25) is fixed to the top outside of one of the connecting pipes (12), and a second drive belt (27) is connected to the outside of the second drive wheel (25); a third drive wheel (42) is fixed to the output end of the fourth drive motor (44), and a third transmission wheel (41) is fixed to the top outside of one of the connecting pipes (11), and a third drive belt (43) is connected to the outside of the third drive wheel (42); a fourth drive wheel (46) is fixed to the output end of the fifth drive motor (48), and a fourth transmission wheel (45) is fixed to the top outside of one of the connecting pipes (10), and a fourth drive belt (47) is connected to the outside of the fourth drive wheel (45).

2. The semi-enclosed, semi-underground sewage treatment system according to claim 1, characterized in that: The closed side (2) adopts an inclined slope design with soil covering the slope surface. The top of the slope is connected to the ground park, and the bottom is connected to the ground. The inclined slope transitions to the ground in the form of a slope or terrace. The soil covering thickness of the inclined slope meets the needs of vegetation planting.

3. The semi-enclosed, semi-underground sewage treatment system according to claim 1, characterized in that: The main body (1) of the sewage treatment plant is equipped with several guide fans (4), and the top of the main body (1) of the sewage treatment plant is equipped with several wind direction and anemometers.

4. The semi-enclosed, semi-underground sewage treatment system according to claim 1, characterized in that: The skylight should meet the light transmission requirements. The area of ​​the skylight, combined with the light transmission of the light guide pipe and the flow guide plate (3), can meet the light transmission requirements of the underground operating layer.

5. The semi-enclosed, semi-underground sewage treatment system according to claim 1, characterized in that: One end of the flow guide plate (3) has a sealing protrusion (35) on one side surface, and the other end has a matching sealing groove (36) on the side surface away from the sealing protrusion (35). Two adjacent flow guide plates (3) can overlap each other through the sealing protrusion (35) and the sealing groove (36). When two adjacent flow guide plates (3) overlap each other, the sealing protrusion (35) is embedded in the corresponding sealing groove (36) to seal the two adjacent flow guide plates (3).

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