Wastewater treatment device for high-altitude engineering construction

Abstract

The application belongs to the technical field of wastewater treatment, and particularly relates to a wastewater treatment device for high-altitude engineering construction, which comprises a treatment tank, a sliding cavity arranged in the inside of the top end of the treatment tank, a filter screen one installed in the middle of a bottom plate, a lifting frame sealingly and slidingly arranged in the sliding cavity, an aeration device arranged at the bottom of the treatment tank, a filter groove one arranged at the top of the lifting frame and used for preliminarily filtering sewage entering the treatment tank, and a driving assembly comprising a hydraulic cylinder arranged in the inside of the sliding cavity and used for controlling the lifting frame to ascend or descend. The filter groove one is arranged to remove large impurities in the sewage, the treatment tank, the lifting frame and the hydraulic cylinder are arranged to quickly clean the scum after aeration treatment, and the efficiency and effect of wastewater treatment are improved.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, specifically a wastewater treatment device for high-altitude engineering construction. Background Technology

[0002] In engineering construction at high altitudes, large amounts of wastewater are often generated during construction. This wastewater typically contains silt, impurities, or chemicals, primarily originating from concrete mixing, equipment cleaning, washing, and rainfall and groundwater infiltration at the construction site. Especially in construction environments involving large-scale land evacuation, the wastewater may also contain significant amounts of silt and pollutants, impacting not only the environment but also potentially damaging construction equipment. Due to the presence of numerous solid particles, the wastewater is often turbid, necessitating sedimentation tanks for solid-liquid separation during treatment. Sedimentation tanks utilize the principle of settling, allowing solid particles to settle over a long period to achieve stratification, thereby removing silt and impurities. However, sedimentation tanks are typically slow, leaving some fine solid particles that require considerable time to separate into layers, hindering rapid wastewater circulation and reuse. Furthermore, wastewater pumping stations are frequently used to transport wastewater, but the presence of solid particles can cause wear and tear on the pumps, affecting their lifespan.

[0003] Chinese patent application CN117658268B discloses a micro-powered air flotation wastewater treatment device for engineering construction. Specifically, the device involves a wastewater treatment system where wastewater is coarsely filtered before entering a storage chamber. Dissolved oxygen bubbles are injected into the wastewater through a dissolved oxygen bubble injection component, causing the bubbles to adhere to solid particles and pollutants in the wastewater and float to the surface, forming a scum layer. As the spiral collecting screen rotates, it collects the scum from the wastewater surface. The scum detaches from the wastewater surface and, as the spiral collecting screen rotates, is rolled to the slots in the central shaft tube. It then enters the central shaft tube through the slots and is discharged from the output end of the central shaft tube, completing the rapid solid-water separation treatment of the engineering wastewater and enabling the wastewater to be recycled and reused.

[0004] However, the above technologies often have the following drawbacks: existing technologies achieve the collection of scum while rotating by setting a central shaft tube and a spiral collecting screen. Since the scum is usually in the form of foam, during the collection process, some of the scum is easy to adhere to the inner wall of the spiral collecting screen, resulting in incomplete discharge of the scum, which affects the efficiency and effect of wastewater treatment.

[0005] Therefore, the present invention provides a wastewater treatment device for high-altitude engineering construction. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is: a wastewater treatment device for high-altitude engineering construction, comprising: The treatment tank has a sliding cavity inside its top, a filter screen installed in the middle of the bottom plate, and a lifting frame sealed and slidably installed in the sliding cavity. An aeration device is installed at the bottom of the treatment tank. The aeration device includes a main pipe, multiple branch pipes are fixed on the side of the main pipe, and multiple sets of aeration nozzles are evenly distributed on the branch pipes. The main pipe is connected to an external air source through an air inlet pipe. A filter tank is provided at the top of the lifting frame. Wastewater entering the treatment tank is initially filtered through the filter tank. The filter tank includes a bottom plate and an upper frame structure. The bottom plate is fixedly connected to the lifting frame. A filter screen is installed in the middle of the bottom plate. A drive assembly, comprising a hydraulic cylinder disposed inside the slide cavity, wherein the hydraulic cylinder controls the lifting frame to rise or fall; Collection tank one, which is fixed around the side wall of the treatment pool.

[0008] Preferably, a U-shaped plate is provided on the side of the fixing plate, and the fixing plate and the U-shaped plate form a closed frame structure. A sliding hole is provided in the middle of the side wall of the lifting frame, and a top rod is slidably installed in the middle of the sliding hole. The bottom end of the top rod is fixed to the bottom of the sliding cavity, and the top end of the top rod is fixed to the bottom of the U-shaped plate.

[0009] Preferably, an isolation shell is fixed below the base plate, and the bottom of the isolation shell is inclined.

[0010] Preferably, an air guide pipe is fixed in the middle of the isolation shell. One end of the air guide pipe is connected to the cavity in the middle of the fixed plate through an air inlet hole opened on the bottom plate. The other end of the air guide pipe is connected to the sliding cavity through an air passage in the middle of the lifting frame. The sliding cavity is connected to the air inlet pipe of the aeration device through a connecting pipe. Multiple nozzles are evenly distributed on the outer wall of the fixed plate.

[0011] Preferably, a partition is slidably installed in the middle of the fixed plate, which divides the middle cavity of the fixed plate into a left chamber and a right chamber. Multiple nozzles are evenly distributed on the outer wall of the left chamber, and nozzles are evenly distributed on the outer wall of the right chamber. The top of the partition is fixedly connected to the U-shaped plate through a connecting plate, and the air inlet is located below the right chamber.

[0012] Preferably, a square sleeve is fixed to the outside of the air guide tube, and multiple magnetic blocks are spaced apart on the sleeve. A movable platform is slidably mounted on the outside of the sleeve. A movable cavity is opened on the side of the movable platform opposite to the filter screen. A movable block is arranged inside the movable cavity. A spring is fixed inside the movable cavity to reset the movable block. A pull rope is fixed to the side of the movable platform. The end of the pull rope away from the movable platform is fixedly connected to the bottom end of the partition. A spring is fixed between the movable platform and the isolation shell to reset the movable platform.

[0013] Preferably, a second filter tank is installed on the side of the first collection tank away from the first filter tank, and a second filter screen is installed in the middle of the second filter tank.

[0014] Preferably, the bottom plate of the first collection tank gradually decreases from the first filter tank to the second filter tank.

[0015] Preferably, a collection tank is provided below the filter tank.

[0016] Preferably, the collection tank one has a notch on the side away from the filter tank one, and symmetrical slots are provided on both sides of the notch. One side of the filter tank two is open, and L-shaped limiting rods are symmetrically fixed on both sides of the open side of the filter tank two. The limiting rods are inserted into the slots.

[0017] The beneficial effects of this invention are as follows: 1. The wastewater treatment device for high-altitude engineering construction described in this invention uses a pair of filter tanks to initially filter wastewater entering the treatment tank, removing larger impurities. The filtered wastewater flows from the first filter tank into the treatment tank below until the water surface of the wastewater in the treatment tank is close to the top of the lifting frame. Then, an aeration device delivers air bubbles to the bottom of the wastewater. Utilizing the adhesion of the bubbles, these bubbles can adhere to solid particles and pollutants in the wastewater. Due to the buoyancy of the bubbles, the bubbles carrying pollutants and solid particles will quickly rise to the surface of the wastewater, forming a layer of scum. Then, the extension rod of the hydraulic cylinder is controlled to retract, thereby driving the lifting frame to move downward. At this time, the water level in the treatment tank is higher than the lifting frame, and the wastewater overflows from the top of the lifting frame, carrying the scum on the water surface to the surroundings. The discharged scum is collected by a collection tank, which can quickly clean the scum.

[0018] 2. The wastewater treatment device for high-altitude engineering construction described in this invention, when the lifting frame descends, lifts the U-shaped plate by the top rod, causing the bottom of the U-shaped plate to separate from the bottom plate. At this time, some wastewater in the treatment tank flows upward from the bottom of the filter screen, and the wastewater is used to backwash the filter screen, thereby cleaning the impurities on the top of the filter screen. The impurities are discharged from the gap between the U-shaped plate and the bottom plate and collected by the collection tank, which can clean the surface of the filter screen and maintain its good filtration performance. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a partial cross-sectional view of the present invention; Figure 3 This is a cross-sectional view of the filter tank of the present invention; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 yes Figure 3 Enlarged view at point B in the middle; Figure 6 This is a schematic diagram of the push rod of the present invention; Figure 7 This is a schematic diagram of the limiting rod of the present invention.

[0021] In the diagram: 1. Treatment tank; 2. Collection tank one; 3. Aeration device; 4. Lifting frame; 5. Filter tank one; 6. Filter tank two; 7. Collection tank two; 8. Base plate; 9. Filter screen one; 10. U-shaped plate; 11. Fixing plate; 12. Sliding cavity; 13. Hydraulic cylinder; 14. Isolation shell; 15. Connecting plate; 16. Air passage; 17. Air guide pipe; 18. Air inlet; 19. Partition plate; 20. Nozzle one; 21. Nozzle two; 22. Pull rope; 23. Sleeve; 24. Magnetic block; 25. Moving platform; 26. Spring one; 27. Movable block; 28. Spring two; 29. ​​Slot; 30. Limiting rod; 31. Top rod; 32. Connecting pipe; 33. Filter screen two. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] Example 1: As Figures 1 to 6 As shown in the embodiment of the present invention, a wastewater treatment device for high-altitude engineering construction includes: The treatment pool 1 has a sliding cavity 12 inside its top end, and a lifting frame 4 is slidably installed in the sliding cavity 12. Aeration device 3 is installed at the bottom of treatment tank 1. The aeration device 3 includes a main pipe, multiple branch pipes are fixed on the side of the main pipe, and multiple sets of aeration nozzles are evenly distributed on the branch pipes. The main pipe is connected to an external air source through an air inlet pipe. Filter tank 5 is set on the top of the lifting frame 4. The filter tank 5 is used to initially filter the sewage entering the treatment tank 1. The filter tank 5 includes a bottom plate 8 and an upper frame structure. The bottom plate 8 is fixedly connected to the lifting frame 4. A filter screen 9 is installed in the middle of the bottom plate 8. The drive assembly includes four hydraulic cylinders 13 disposed inside the slide cavity 12 and symmetrically distributed at the bottom screw corner of the lifting frame 4. The lifting frame 4 is raised or lowered by the hydraulic cylinders 13. Collection trough 2 is fixed around the side wall of treatment pool 1; During operation, an inlet pipe is fixed to the side of filter tank 5. The inlet pipe is connected to the pump body via a flexible hose. The pump body draws wastewater from the sedimentation tank into filter tank 5. Filter screen 9 performs preliminary filtration of the wastewater, removing larger particles. The filtered wastewater flows from filter tank 5 into treatment tank 1 below, until the water surface of the wastewater in treatment tank 1 is close to the top of the lifting frame 4. Then, the aeration device 3 is activated, introducing gas into the main pipe through connecting pipe 32, and then delivering air bubbles to the bottom of the wastewater through branch pipes and aeration nozzles. Utilizing the adhesion of air bubbles... These bubbles can adhere to solid particles and pollutants in the wastewater. Due to the buoyancy of the bubbles, the bubbles carrying pollutants and solid particles will rise rapidly to the surface of the wastewater, forming a layer of scum. Then, the drive assembly is activated to control the extension rod of the hydraulic cylinder 13 to retract, thereby driving the lifting frame 4 to move down. At this time, the water level in the treatment tank 1 is higher than the lifting frame 4, and the wastewater overflows from the top of the lifting frame 4, while the scum on the water surface is discharged directly to the surroundings. The discharged scum is collected by the collection tank 2, which can quickly clean the scum and improve the efficiency and effect of wastewater treatment.

[0024] A U-shaped plate 10 is provided on the side of the fixed plate 11. The fixed plate 11 and the U-shaped plate 10 form a closed frame structure. A sliding hole is opened in the middle of the side wall of the lifting frame 4. A top rod 31 is slidably installed in the middle of the sliding hole. The bottom end of the top rod 31 is fixed to the bottom of the sliding cavity 12, and the top end of the top rod 31 is fixed to the bottom of the U-shaped plate 10. During operation, when the lifting frame 4 descends, the top rod 31 lifts the U-shaped plate 10, causing the bottom of the U-shaped plate 10 to separate from the bottom plate 8. At this time, some wastewater in the treatment tank 1 flows upward from the bottom of the filter screen 9. The wastewater is used to backwash the filter screen 9, thereby cleaning the impurities on the top of the filter screen 9. The impurities are discharged from the gap between the U-shaped plate 10 and the bottom plate 8 and collected by the collection tank 2. This can clean the surface of the filter screen 9 and maintain its good filtration performance.

[0025] An isolation shell 14 is fixed below the base plate 8. The bottom of the isolation shell 14 is inclined. During operation, the bottom of the isolation shell 14 is open, which does not affect the flow of wastewater from the filter tank 5 into the treatment tank 1. The bottom of the isolation shell 14 is inclined so as to guide the floating scum to move to the side of the isolation shell 14, so that the floating scum is less likely to contact the bottom of the filter screen 9, thereby facilitating subsequent floating scum cleaning.

[0026] An air guide pipe 17 is fixed in the middle of the isolation shell 14. One end of the air guide pipe 17 is connected to the cavity in the middle of the fixed plate 11 through the air inlet hole 18 on the bottom plate 8. The other end of the air guide pipe 17 is connected to the sliding cavity 12 through the air passage 16 in the middle of the lifting frame 4. The sliding cavity 12 is connected to the air inlet pipe of the aeration device 3 through the connecting pipe 32. Multiple nozzles 20 are evenly distributed on the outer wall of the fixed plate 11. During operation, during aeration, air is introduced into the sliding cavity 12 through the air guide pipe 17 and the connecting pipe 32. Then, the air enters the cavity in the middle of the fixed plate 11 through the air passage 16, the air guide pipe 17 and the air inlet hole 18, and finally sprays out from the nozzles 20. The sprayed airflow prevents scum from adhering to the outer wall of the filter tank 5, thus facilitating subsequent cleaning of scum.

[0027] A partition 19 is slidably installed in the middle of the fixed plate 11, dividing the central cavity of the fixed plate 11 into a left chamber and a right chamber. Multiple nozzles 21 are evenly distributed on the outer wall of the left chamber, and nozzles 20 are evenly distributed on the outer wall of the right chamber. The top of the partition 19 is fixedly connected to the U-shaped plate 10 via a connecting plate 15. The air inlet 18 is located below the right chamber. During operation, when treating wastewater in the treatment tank 1, air enters the right chamber through the air inlet 18, at which time only nozzles 20 spray out. When it is necessary to discharge scum, the airflow controls the lifting frame 4 to descend. At this time, the top rod 31 pushes the U-shaped plate 10 to move upward, and then the connecting plate 15 synchronously drives the partition 19 to move upward, so that the left chamber and the right chamber are connected. At this time, the nozzle 1 20 and the nozzle 2 21 spray airflow at the same time. The airflow sprayed by the nozzle 1 20 prevents scum from adhering to the outer wall of the filter tank 5. The airflow sprayed by the nozzle 2 21 pushes the impurities above the filter screen 9 to be quickly discharged outward with the rising wastewater, so as to quickly clean the impurities above the filter screen 9.

[0028] A square sleeve 23 is fixed to the outside of the air guide tube 17. Multiple magnetic blocks 24 are spaced apart on the sleeve 23. A movable platform 25 is slidably fitted onto the outside of the sleeve 23. A movable cavity is formed on the side of the movable platform 25 opposite to the filter screen 9. A movable block 27 is disposed inside the movable cavity, and a spring 26 is fixed inside the movable cavity to reset the movable block 27. A pull rope 22 is fixed to the side of the movable platform 25, and the end of the pull rope 22 away from the movable platform 25 is fixedly connected to the bottom end of the partition plate 19. A mechanism is fixed between the movable platform 25 and the isolation housing 14 to allow it to reset. Spring 28; During operation, when the partition 19 moves upward, the pull rope 22 pulls the moving platform 25 to move laterally along the sleeve 23. At this time, spring 28 is stretched. When the moving platform 25 is aligned with the magnetic block 24, the magnetic block 24 attracts the movable block 27 to move downward. At this time, spring 26 is compressed. When the moving platform 25 is misaligned with the magnetic block 24, spring 26 pushes the movable block 27 to move upward, impacting the bottom of the filter screen 9. The resulting vibration causes impurities to separate from the filter screen 9, so as to clean the difficult-to-clean impurities attached to the surface of the filter screen 9 and improve the impurity cleaning efficiency.

[0029] A filter tank 6 is installed on the side of the collection tank 2 away from the filter tank 5, and a filter screen 33 is installed in the middle of the filter tank 6. During operation, the scum discharged from the treatment tank 1 and the impurities discharged from the filter tank 5 are collected through the collection tank 2, and part of the treated wastewater discharged is used to rinse the collection tank 2, so that the scum and impurities are flushed into the filter tank 6 and collected together.

[0030] The bottom plate 8 of the collection tank 12 gradually decreases from the filter tank 15 to the filter tank 26. During operation, by setting the bottom plate 8 of the collection tank 12 to an inclined position, scum and impurities are quickly gathered into the filter tank 26, thereby improving the collection efficiency.

[0031] Below the filter tank 2 6, a collection tank 2 7 is provided; during operation, scum and impurities are filtered out through the filter screen 2 33, and the wastewater filtered out from the filter tank 2 6 is collected through the collection tank 2 7 to avoid waste of water resources.

[0032] Example 2: Figure 7As shown in the comparative embodiment one, another embodiment of the present invention is as follows: the collection tank 2 has a notch on the side away from the filter tank 5, and symmetrical slots 29 are provided on both sides of the notch. One side of the filter tank 6 is open. L-shaped limiting rods 30 are symmetrically fixed on both sides of the opening of the filter tank 6. The limiting rods 30 and the slots 29 are interlocked. During operation, the limiting rods 30 are inserted into the slots 29 to quickly install the filter tank 6. The limiting rods 30 and the slots 29 are adapted to ensure that the filter tank 6 is stably installed on the outside of the collection tank 2, and the opening of the filter tank 6 is aligned with the notch of the collection tank 2. The scum and impurities in the collection tank 2 can flow into the filter tank 6 through the opening and be collected. Afterwards, the limiting rods 30 are removed from the slots 29, and the filter tank 6 can be quickly disassembled to facilitate the cleaning of the collected scum and impurities.

[0033] Working principle: Wastewater in the sedimentation tank is pumped into the filter tank 5 by the pump body. The filter screen 9 performs preliminary filtration of the wastewater, removing larger impurities. The filtered wastewater flows from the filter tank 5 into the treatment tank 1 below until the water surface of the wastewater in the treatment tank 1 is close to the top of the lifting frame 4. Then, the aeration device 3 is activated, and gas is introduced into the main pipe through the connecting pipe 32. Then, air bubbles are delivered to the bottom of the wastewater through the branch pipe and aeration nozzle. Utilizing the adhesion of the bubbles, these bubbles can adhere to the solid particles and pollutants in the wastewater. Due to the buoyancy of the bubbles, the bubbles carrying pollutants and solid particles will rise rapidly to the surface of the wastewater, forming a layer of scum. Then, the drive component is activated to control the extension rod of the hydraulic cylinder 13 to retract, thereby driving the lifting frame 4 to move down. At this time, the water level in the treatment tank 1 is higher than the lifting frame 4, and the wastewater overflows from the top of the lifting frame 4, while the scum on the water surface is discharged to the surroundings. The discharged scum is collected by the collection tank 2, which can quickly clean the scum. When the lifting frame 4 descends, the top rod 31 lifts the U-shaped plate 10, causing the bottom of the U-shaped plate 10 to separate from the bottom plate 8. At this time, some wastewater in the treatment tank 1 flows upward from the bottom of the filter screen 9. The wastewater is used to backwash the filter screen 9, thereby cleaning the impurities on the top of the filter screen 9. The impurities are discharged from the gap between the U-shaped plate 10 and the bottom plate 8 and collected by the collection tank 2. This can clean the surface of the filter screen 9 and maintain its good filtration performance. During the aeration process, while treating the wastewater in the treatment tank 1, air is introduced into the sliding cavity 12 through the air guide pipe 17 via the connecting pipe 32. Then, the air enters the right chamber through the air passage 16, the air guide pipe 17, and the air inlet 18. At this time, only the nozzle 20 sprays air, which prevents scum from adhering to the outer wall of the filter tank 5. When it is necessary to discharge scum, the lifting frame 4 is lowered. At this time, the top rod 31 pushes the U-shaped plate 10 to move upward, and then the connecting plate 15 drives the partition 19 to move upward, so that the left chamber and the right chamber are connected. At this time, the nozzle 20 and the nozzle 21 spray air simultaneously. The air sprayed by the nozzle 21 pushes the impurities above the filter screen 9 to be quickly discharged outward with the rising wastewater, so as to quickly clean the impurities above the filter screen 9. When the partition 19 moves upward, the pull rope 22 pulls the moving platform 25 to move laterally along the sleeve 23. At this time, the second spring 28 is stretched. When the moving platform 25 is aligned with the magnetic block 24, the magnetic block 24 attracts the movable block 27 to move downward. At this time, the first spring 26 is compressed. When the moving platform 25 is misaligned with the magnetic block 24, the first spring 26 pushes the movable block 27 to move upward and hit the bottom of the filter screen 9. The resulting vibration causes the impurities to separate from the filter screen 9, so as to clean the difficult-to-clean impurities attached to the surface of the filter screen 9 and improve the impurity cleaning efficiency.

[0034] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0035] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 limiting the scope of protection of this invention.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for high-altitude engineering construction, characterized in that: include: The treatment pool (1) has a sliding cavity (12) inside the top of the treatment pool (1), and a lifting frame (4) is installed in the sliding cavity (12) in a sealed sliding manner. Aeration device (3) is installed at the bottom of treatment tank (1). The aeration device (3) includes a main pipe, multiple branch pipes are fixed on the side of the main pipe, and multiple sets of aeration nozzles are evenly distributed on the branch pipes. The main pipe is connected to an external air source through an air inlet pipe. Filter tank 1 (5) is set on the top of the lifting frame (4). The wastewater entering the treatment tank (1) is initially filtered through the filter tank 1 (5). The filter tank 1 (5) includes a bottom plate (8) and an upper frame structure. The bottom plate (8) is fixedly connected to the lifting frame (4). A filter screen 1 (9) is installed in the middle of the bottom plate (8). The drive assembly includes a hydraulic cylinder (13) disposed inside the slide cavity (12), which controls the lifting frame (4) to rise or fall. Collection trough 1 (2), which is fixed around the side wall of the treatment pool (1); A fixing plate (11) is fixed to the top of the base plate (8), and a U-shaped plate (10) is provided on the side of the fixing plate (11). The fixing plate (11) and the U-shaped plate (10) form a closed frame structure. A sliding hole is provided in the middle of the side wall of the lifting frame (4). A top rod (31) is slidably installed in the middle of the sliding hole. The bottom end of the top rod (31) is fixed to the bottom of the sliding cavity (12), and the top end of the top rod (31) is fixed to the bottom of the U-shaped plate (10). An isolation shell (14) is fixed below the base plate (8). The bottom of the isolation shell (14) is inclined. An air guide pipe (17) is fixed in the middle of the isolation shell (14). One end of the air guide pipe (17) is connected to the cavity in the middle of the fixed plate (11) through the air inlet (18) on the bottom plate (8). The other end of the air guide pipe (17) is connected to the sliding cavity (12) through the air passage (16) in the middle of the lifting frame (4). The sliding cavity (12) is connected to the air inlet pipe of the aeration device (3) through the connecting pipe (32). Multiple nozzles (20) are evenly distributed on the outer wall of the fixed plate (11). A partition (19) is slidably installed in the middle of the fixed plate (11). The partition (19) divides the middle cavity of the fixed plate (11) into a left chamber and a right chamber. Multiple nozzles (21) are evenly distributed on the outer wall of the left chamber. The nozzles (20) are evenly distributed on the outer wall of the right chamber. The top of the partition (19) is fixedly connected to the U-shaped plate (10) through a connecting plate (15). The air inlet (18) is located below the right chamber.

2. The wastewater treatment device for high-altitude engineering construction according to claim 1, characterized in that: A square sleeve (23) is fixed to the outside of the air guide tube (17). Multiple magnetic blocks (24) are spaced apart on the sleeve (23). A movable platform (25) is slidably sleeved on the outside of the sleeve (23). A movable cavity is opened on the side opposite to the filter screen (9). A movable block (27) is provided inside the movable cavity. A spring (26) is fixed inside the movable cavity to reset the movable block (27). A pull rope (22) is fixed to the side of the movable platform (25). The end of the pull rope (22) away from the movable platform (25) is fixedly connected to the bottom end of the partition (19). A spring (28) is fixed between the movable platform (25) and the isolation shell (14) to reset it.

3. The wastewater treatment device for high-altitude engineering construction according to claim 1, characterized in that: A filter tank 2 (6) is installed on the side of the collection tank 1 (2) away from the filter tank 1 (5), and a filter screen 2 (33) is installed in the middle of the filter tank 2 (6).

4. The wastewater treatment device for high-altitude engineering construction according to claim 1, characterized in that: The bottom plate (8) of the first collection tank (2) gradually decreases from the first filter tank (5) to the second filter tank (6).

5. A wastewater treatment device for high-altitude engineering construction according to claim 3, characterized in that: A collection tank (7) is provided below the filter tank (6).

6. The wastewater treatment device for high-altitude engineering construction according to claim 3, characterized in that: The collection tank 1 (2) has a notch on the side away from the filter tank 1 (5), and slots (29) are symmetrically opened on both sides of the notch. One side of the filter tank 2 (6) is open, and L-shaped limiting rods (30) are symmetrically fixed on both sides of the opening of the filter tank 2 (6). The limiting rods (30) and the slots (29) are interlocked.

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