Energy-saving green bored pile mud comprehensive treatment system and method

Abstract

The application discloses an energy-saving and environment-friendly bored pile mud comprehensive treatment system and method, relates to the field of waste mud treatment technology, and comprises a pile foundation and a multistage sedimentation tank which are arranged on the ground. The pile foundation is internally provided with a water pipe which is extended to the inside of the multistage sedimentation tank at one end. The inside bottom end of the multistage sedimentation tank comprises a plane and a trapezoidal plane. The trapezoidal plane is composed of multiple steps. A filter screen is arranged on the trapezoidal plane. The multistage sedimentation tank is arranged, the bottom surface of the multistage sedimentation tank is designed as a stepped shape, the stepped part is provided with a filter screen, the filter screen can filter large-particle solids in the mud, and the large-particle solids are deposited at the bottom of the multistage sedimentation tank. The mud concentration after being filtered by the filter screen is greatly reduced, the mud concentration is controllable when the filter press is used for pressure filtration, and thus the solidification efficiency and rate during pressure filtration are improved.

Description

Technical Field

[0001] This invention relates to the field of waste mud treatment technology, specifically to an energy-saving and green comprehensive treatment system and method for drilled pile mud. Background Technology

[0002] Filtration solidification is a technology that uses a filter press to filter mud into solid mud cake and filtrate. It has advantages such as small footprint, fewer chemical additives, good filtration and separation effect and low daily operating cost. It is often used in the treatment of waste mud from oil drilling operations, pipe jacking construction and shield tunneling construction.

[0003] Treating waste drilling mud from bored piles by pressure filtration and solidification not only effectively solves the problem of construction site occupation, but also reduces the number of transport vehicles by two-thirds compared to transporting solidified mud cakes. Furthermore, the pressure-filtered and solidified mud cakes and water can be further processed and utilized.

[0004] However, the following problems still need to be solved in the process of filter press solidification: First, the higher the concentration of the treated mud or the higher the content of fine soil particles, the lower the filter press efficiency and rate.

[0005] Secondly, the solidified sludge cake produced by pressure filtration is usually scattered and piled up at the construction site before being transported by vehicle to a designated location. This not only affects the appearance of the construction site but also results in the waste of the solidified sludge cake as it is not used for resource utilization. Similarly, the direct discharge of filtrate can easily cause pollution to the surrounding environment. Therefore, an energy-saving and green pressure filtration solidification sludge technology that is conducive to urban civilization construction and civilized construction site management is proposed. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an energy-saving and green comprehensive treatment system and method for drilled pile mud. By setting up multi-stage sedimentation tanks, the concentration of mud during filter press filtration can be controlled, thereby improving the efficiency and rate of solidification during filtration and effectively solving the problems in the background technology.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an energy-saving and green drilling and grouting pile mud comprehensive treatment system, including a pile foundation and a multi-stage sedimentation tank on the ground, wherein a water pipe is provided inside the pile foundation, and one end of the water pipe extends into the multi-stage sedimentation tank;

[0008] The bottom of the multi-stage sedimentation tank includes a flat surface and a trapezoidal surface. The trapezoidal surface is composed of multiple steps, which allows large solid particles to settle. A filter screen is provided on the trapezoidal surface.

[0009] A filter press is installed at the top of the multi-stage sedimentation tank. The feed end of the filter press extends into the multi-stage sedimentation tank through a pipe. The pipe and the water pipe are located on both sides of the filter screen. A water pump is fixed on both the pipe and the water pipe to transport the slurry.

[0010] Furthermore, the filter press includes a flocculation tank and a filter chamber. The bottom of the filter chamber is provided with a sludge cake outlet, and a filtrate outlet pipe is fixed on the side wall of the filter chamber.

[0011] The bottom of the filter press is equipped with a guide rail, and multiple rollers are fixedly installed at the bottom of the filter press. The filter press can be adjusted in position by rolling the rollers on the guide rail.

[0012] Furthermore, the filter press is provided with multiple mud cake pools at the bottom, which are located on the ground. The cross-section of each mud cake pool is funnel-shaped, and the bottom of the interior of each mud cake pool is lined with geotextile and a gravel layer.

[0013] The outside of the mud cake tank is a drainage ditch built on the ground. One end of the filtrate outlet pipe is connected to the drainage ditch, and the water filtered out in the filter press is discharged into the drainage ditch.

[0014] Furthermore, the mud cake tank is equipped with a water guide pipe, a vacuum pump is fixedly mounted on the water guide pipe, the bottom end of the water guide pipe is buried inside the gravel layer, and the top end of the water guide pipe leads to a drainage ditch.

[0015] Furthermore, once the mud cake pool is filled with mud cakes, multiple gravity beams with lifting rings are placed on top of the mud cakes to preload the mud cakes inside the mud cake pool with gravity.

[0016] Furthermore, a clean water storage tank is provided at the outlet end of the drainage ditch, and the clean water storage tank is located on the ground.

[0017] The inner wall of the clear water storage tank is equipped with a filtrate separation device. When the water in the drainage ditch flows into the clear water storage tank, it first enters the filtrate separation device. The clear water storage tank is equipped with a pH detection system, which is located at the outlet of the drainage ditch and electrically connected to the outlet of the filtrate separation device.

[0018] Furthermore, the clear water storage tank is equipped with a drainage component and a partition component. The drainage component includes a flexible hose located inside the clear water storage tank. The top end of the flexible hose extends to the top of the clear water storage tank. A rigid pipe is fixedly provided at the bottom end of the flexible hose, and a buoyancy ball is fixedly provided at the outer end of the rigid pipe.

[0019] Furthermore, the separating component includes a partition, and both sides of the partition are provided with retaining plates and are inserted into the retaining plates. The side of the partition facing the inner wall of the clear water storage tank is in contact with the inner wall of the clear water storage tank.

[0020] An airbag is fixedly provided on the side of the card plate away from the inner wall, and the partition assembly also includes a support plate, with the card plate fixedly disposed on the top of the support plate.

[0021] Furthermore, the multi-stage sedimentation tank is equipped with a cleaning component, which includes a conveying pipe mounted on the inner wall of the multi-stage sedimentation tank via a slide rail, and a motor is fixedly mounted at the top of the conveying pipe.

[0022] One end of the motor's output shaft extends into the inside of the conveying pipe and is fixedly mounted on the conveying shaft. The bottom end of the conveying shaft extends to the bottom of the conveying pipe, and a discharge pipe is fixedly mounted on the outer end of the conveying pipe.

[0023] This invention also includes a treatment method for an energy-saving and green drilled pile mud integrated treatment system, the specific steps of which are as follows:

[0024] S1: Before the construction of the pile foundation project, the multi-stage sedimentation tank, mud cake tank and clear water storage tank are excavated on the ground. Then, drainage ditches are dug around the mud cake tank and filter presses are installed. Finally, all pipelines, including water pipes and water pumps, are placed and connected.

[0025] S2: When waste mud begins to be generated inside the pile foundation, the mud is transported to a multi-stage sedimentation tank through water pipes and pumps. Since the bottom of the multi-stage sedimentation tank is stepped and equipped with a filter screen, large particles of solids in the waste mud will settle at the bottom of the multi-stage sedimentation tank, and the mud concentration after filtration will be greatly reduced.

[0026] S3: After sedimentation and filtration, the slurry is transported to the filter press. The slurry entering the filter press first enters the flocculation tank. At the same time, the workers add lime flocculant to the flocculation tank. After the slurry reacts with the flocculant, it enters the filter chamber. Under the pressure of the filter chamber, the filtered liquid is finally discharged into the drainage ditch, and the solid mud cake falls into the mud cake pool through the mud cake outlet.

[0027] S4: As the filter press works, the sludge cake gradually falls into the sludge cake pool. When one of the sludge cake pools is full of sludge cake, the filter press can slowly move to the top of the other sludge cake pool under the action of rollers and guide rails to continue discharging sludge cake. At the same time, a gravity beam is placed on top of the sludge cake pool that is full of sludge cake to preload it with gravity. Then the vacuum pump is started to draw the filtrate inside the sludge cake pool into the drainage ditch.

[0028] S5: The filtrate entering the drainage ditch flows along the drainage ditch into the filtrate separation device inside the clear water storage tank. The pH detection system detects the pH value of the filtrate. When the test result is normal, the outlet of the filtrate separation device opens, and the filtrate collects into the clear water storage tank. If the test result is abnormal, the pH detection system will issue an alarm, and the outlet of the filtrate separation device will also close. Subsequently, relevant personnel will arrive on site to handle the abnormal filtrate.

[0029] S6: After the solid mud cake is further filtered inside the mud cake pit, it is placed by an excavator at the designated location of the dump truck for transportation or reuse. The clean water in the clean water storage tank can also be reused.

[0030] Compared with existing technologies, this invention provides an energy-saving and green comprehensive treatment system and method for drilled pile mud, which has the following beneficial effects:

[0031] 1. By setting up multi-stage sedimentation tanks and designing the bottom of the multi-stage sedimentation tanks as stepped, with filter screens installed on the stepped parts, the filter screens can filter out large particles of solids in the waste sludge and cause the large particles of solids to settle at the bottom of the multi-stage sedimentation tanks. The concentration of the sludge after filtration will be greatly reduced, making the concentration of the sludge controllable during the filter press operation, thereby improving the efficiency and rate of solidification during the filter press operation.

[0032] 2. After being filtered by a filter press, the mud cake is placed into a mud cake pool, and a gravity beam is used to further preload and drain the mud cake pool, which is conducive to further particle screening and resource utilization. On the other hand, the mud cake will not accumulate on the site surface and affect the appearance of the construction site. It is suitable for pile foundation construction under strict conditions in urban centers and for the evaluation and selection of civilized construction sites.

[0033] 3. The pH value of the filtrate is detected by a pH detection system. An alarm is issued when an abnormality is detected, and the outlet of the filtrate separator is closed. Subsequently, relevant personnel arrive on site to handle the abnormal filtrate, thereby ensuring that the filtrate in the clear water storage tank can be recycled and will not cause pollution to the surrounding environment. Attached Figure Description

[0034] Figure 1 This is the front view of the present invention;

[0035] Figure 2 This is a cross-sectional view of the present invention;

[0036] Figure 3 This is a schematic diagram of gravity preload drainage in the mud pit according to the present invention;

[0037] Figure 4 This is a structural diagram of the mud cake tank of the present invention;

[0038] Figure 5 This is a structural diagram of the internal structure of the clear water storage tank of the present invention;

[0039] Figure 6 This is the main view of the separator component of the present invention;

[0040] Figure 7 This is a cross-sectional view of the buoyancy ball of the present invention.

[0041] In the diagram: 1. Pile foundation; 2. Water pump; 3. Multi-stage sedimentation tank; 4. Sludge cake tank; 5. Clear water storage tank; 6. Filter press; 7. Guide rail; 8. Roller; 9. Water pipe; 10. Vacuum pump; 11. Drainage ditch; 12. Geotextile; 13. Gravel layer; 14. Filter screen; 15. Sludge cake outlet; 16. Flocculation tank; 17. Filter chamber; 18. pH detection system; 19. Filtrate separation device; 20. Drainage assembly; 2001. Hose; 2002. Rigid pipe; 2003. Buoyancy ball; 21. Separation assembly; 2101. Partition; 2102. Airbag; 2103. Pallet; 2104. Support plate; 22. Cleaning assembly; 2201. Conveying pipe; 2202. Conveying shaft; 2203. Motor; 2204. Discharge pipe; 23. Gravity beam. Detailed Implementation

[0042] To make the technical means, creative features, and achieved objectives and effects of this invention readily understandable, the invention will be further described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0043] like Figure 1-7 As shown, the present invention provides an energy-saving and green drilling pile mud comprehensive treatment system, including a pile foundation 1 and a multi-stage sedimentation tank 3 located on the ground. A water pipe 9 is provided inside the pile foundation 1, and one end of the water pipe 9 extends into the multi-stage sedimentation tank 3.

[0044] The bottom of the multi-stage sedimentation tank 3 includes a flat surface and a trapezoidal surface. The trapezoidal surface is composed of multiple steps, which enables large solid particles to settle. A filter screen 14 is provided on the trapezoidal surface.

[0045] The multi-stage sedimentation tank 3 is equipped with a filter press 6 at the top. The feed end of the filter press 6 extends into the multi-stage sedimentation tank 3 through a pipe. The pipe and the water pipe 9 are located on both sides of the filter screen 14. A water pump 2 is fixedly installed on the pipe and the water pipe 9 to transport the slurry.

[0046] The filter press 6 includes a flocculation tank 16 and a filter chamber 17. The bottom of the filter chamber 17 is provided with a mud cake outlet 15, and a filtrate outlet pipe is fixed on the side wall of the filter chamber 17.

[0047] The slurry generated inside the pile foundation 1 is transported to the multi-stage sedimentation tank 3 through the water pipe 9 and the water pump 2. Since the bottom of the multi-stage sedimentation tank 3 is stepped and equipped with a filter screen 14, large particles of solids in the waste slurry will settle at the bottom of the multi-stage sedimentation tank 3. The concentration of the slurry after filtration by the filter screen 14 will be greatly reduced, so that the concentration of the slurry can be controlled when the filter press 6 performs filtration, thereby improving the efficiency and rate of solidification during filtration.

[0048] After entering the filter press 6, the filter press 6 can convert the slurry into slurry cake and filtered water, such as Figure 1-4 As shown, the bottom of the filter press 6 is provided with a guide rail 7, and multiple rollers 8 are fixedly provided at the bottom end of the filter press 6. The filter press 6 can be adjusted in position by the rollers 8 rolling on the guide rail 7.

[0049] The filter press 6 has multiple mud cake pools 4 located on the ground at its bottom. The cross-section of each mud cake pool 4 is funnel-shaped, and the bottom of the interior of each mud cake pool 4 is lined with geotextile 12 and a gravel layer 13.

[0050] The outside of the mud cake tank 4 is provided with a drainage ditch 11 on the ground. One end of the filtrate outlet pipe is connected to the drainage ditch 11, and the water filtered out in the filter press 6 is discharged into the drainage ditch 11.

[0051] The slurry entering the filter press 6 first enters the flocculation tank 16. At the same time, the workers add lime flocculant to the flocculation tank 16. After the slurry reacts with the flocculant, it enters the filter chamber 17. Under the pressure of the filter chamber 17, the filtered liquid is finally discharged into the drainage ditch 11, and the solid mud cake falls into the mud cake pool 4 through the mud cake outlet 15.

[0052] After the mud cake enters the mud cake tank 4, it needs to undergo further processing, such as... Figure 1-4 As shown, the mud cake tank 4 is equipped with a water guide pipe, and a vacuum pump 10 is fixed on the water guide pipe. The bottom end of the water guide pipe is buried inside the gravel layer 13, and the top end of the water guide pipe leads to the drainage ditch 11.

[0053] After the mud cake pool 4 is filled with mud cakes, multiple gravity beams 23 with lifting rings are placed on top of the mud cakes to preload the mud cakes inside the mud cake pool 4 with gravity.

[0054] As the filter press 6 operates, the mud cake gradually falls into the mud cake pool 4. When one mud cake pool 4 is full of mud cake, the filter press 6 can slowly move above the other mud cake pool 4 under the action of the roller 8 and the guide rail 7 to continue discharging mud cake. At the same time, the gravity beam 23 is placed on top of the mud cake pool 4 that is full of mud cake to preload it with gravity. Then the vacuum pump 10 is started to extract the filtrate inside the mud cake pool 4 into the drainage ditch 11, which is beneficial for further particle screening and resource utilization. On the other hand, the mud cake will not accumulate on the ground surface and affect the appearance of the construction site. It is suitable for pile foundation construction under strict conditions in the urban center and for the evaluation and selection of civilized construction sites.

[0055] The filtered water needs to be stored properly, such as... Figure 1 , 2 As shown, the outlet end of the drainage ditch 11 is provided with a clean water storage tank 5, which is located on the ground.

[0056] The inner wall of the clear water storage tank 5 is provided with a filtrate separation device 19. When the water in the drainage ditch 11 flows into the clear water storage tank 5, it first enters the filtrate separation device 19. The clear water storage tank 5 is provided with a pH detection system 18, which is located at the outlet of the drainage ditch 11 and is electrically connected to the outlet of the filtrate separation device 19.

[0057] The filtrate entering the drainage ditch 11 flows along the drainage ditch 11 into the filtrate separation device 19 inside the clear water storage tank 5. The pH detection system 18 detects the pH value of the filtrate. When the detection result is normal, the outlet of the filtrate separation device 19 opens, and the filtrate collects into the clear water storage tank 5. If the detection result is abnormal, the pH detection system 18 will issue an alarm, and the outlet of the filtrate separation device 19 will also close. Subsequently, relevant personnel will arrive on site to handle the abnormal filtrate, thereby ensuring that the filtrate in the clear water storage tank can be recycled and will not cause pollution to the surrounding environment.

[0058] The water stored in the clean water storage tank 5 needs to be pumped out, such as... Figure 1 , 2 As shown in Figure 7, the clear water storage tank 5 is provided with a drainage component 20 and a partition component 21. The drainage component 20 includes a flexible hose 2001 located inside the clear water storage tank 5. The top end of the flexible hose 2001 extends to the top of the clear water storage tank 5. A rigid pipe 2002 is fixedly provided at the bottom end of the flexible hose 2001. A buoyancy ball 2003 is fixedly provided at the outer end of the rigid pipe 2002.

[0059] Under the action of the buoyancy ball 2003, the rigid tube 2002 floats on the liquid surface inside the clear water storage tank 5. The bottom end of the rigid tube 2002 is inserted into the filtrate. When the filtrate is drawn out, the filtrate flows upward through the rigid tube 2002 and is finally drawn out through the flexible tube 2001.

[0060] To prevent backflow due to overfilling of the filtrate, such as Figure 1 , 2 As shown in Figure 6, the partition component 21 includes a partition 2101. Both sides of the partition 2101 are provided with a retaining plate 2103 and are inserted into the retaining plate 2103. The side of the partition 2101 facing the inner wall of the clear water storage tank 5 is in contact with the inner wall of the clear water storage tank 5.

[0061] An airbag 2102 is fixedly provided on the side of the card plate 2103 away from the inner wall. The separating component 21 also includes a support plate 2104, and the card plate 2103 is fixedly provided on the top of the support plate 2104.

[0062] As the filtrate is continuously injected into the clear water storage tank 5, the liquid level in the clear water storage tank 5 continues to rise. When the liquid level rises to the partition component 21, the airbag 2102 moves upward under the buoyancy of the filtrate and drives the partition 2101 to move upward until the partition 2101 moves to the outlet end of the drainage channel 11 and blocks the drainage channel 11. At this time, the liquid level is about to be level with the drainage channel 11. The blocking of the partition 2101 prevents the water in the drainage channel 11 from flowing out, thus preventing the liquid level from continuing to rise and backflowing into the drainage channel 11.

[0063] The sludge accumulated inside the multi-stage sedimentation tank 3 also needs to be discharged, such as... Figure 1 , 2 As shown in Figure 5, the multi-stage sedimentation tank 3 is equipped with a cleaning component 22. The cleaning component 22 includes a conveying pipe 2201 that is mounted on the inner wall of the multi-stage sedimentation tank 3 via a slide rail. A motor 2203 is fixedly mounted at the top of the conveying pipe 2201.

[0064] One end of the output shaft of the motor 2203 extends into the inside of the conveying pipe 2201 and is fixedly provided with a conveying shaft 2202. The bottom end of the conveying shaft 2202 extends to the bottom of the conveying pipe 2201, and a discharge pipe 2204 is fixedly provided at the outer end of the conveying pipe 2201.

[0065] Large solid particles in the sludge remain inside the multi-stage sedimentation tank 3, forming sludge. After a long period of time, it needs to be cleaned. During cleaning, the motor 2203 is turned on, and the conveyor shaft 2202 is driven to rotate by the motor 2203. The sludge inside the multi-stage sedimentation tank 3 is conveyed upward along the conveyor pipe 2201 and discharged through the discharge pipe 2204. The cleaning component 22 is installed on the inner wall of the multi-stage sedimentation tank 3 by sliding rails. The position of the cleaning component 22 can be adjusted by sliding to clean the sludge in different locations inside the multi-stage sedimentation tank 3.

[0066] 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 claimed invention.

Claims

1. An energy-saving and green drilled pile mud treatment system, comprising pile foundations (1) excavated on the ground and multi-stage sedimentation tanks (3), characterized in that: The pile foundation (1) is equipped with a water pipe (9), one end of which extends into the multi-stage sedimentation tank (3); The bottom of the multi-stage sedimentation tank (3) includes a plane and a trapezoidal surface. The trapezoidal surface is composed of multiple steps and a filter screen (14) is provided on the trapezoidal surface. The multi-stage sedimentation tank (3) is equipped with a filter press (6) at the top. The feed end of the filter press (6) extends into the multi-stage sedimentation tank (3) through a pipe. The pipe and the water pipe (9) are located on both sides of the filter screen (14). A water pump (2) is fixedly installed on both the pipe and the water pipe (9). The filter press (6) includes a flocculation tank (16) and a filter chamber (17). The bottom of the filter chamber (17) is provided with a mud cake outlet (15), and a filtrate outlet pipe is fixed on the side wall of the filter chamber (17). The bottom of the filter press (6) is provided with a guide rail (7), and multiple rollers (8) are fixedly provided at the bottom end of the filter press (6). The filter press (6) can roll on the guide rail (7) via the rollers (8). The filter press (6) has multiple mud cake pools (4) located on the ground at the bottom. The cross-section of the mud cake pool (4) is funnel-shaped. The bottom of the mud cake pool (4) is covered with geotextile (12) and gravel layer (13). The mud cake tank (4) is provided with a drainage ditch (11) on the ground outside, and one end of the filtrate outlet pipe is connected to the drainage ditch (11). The mud cake tank (4) is equipped with a water pipe, and a vacuum pump (10) is fixed on the water pipe. The bottom end of the water pipe is buried inside the gravel layer (13), and the top end of the water pipe leads to the drainage ditch (11). When the mud cake pool (4) is filled with mud cakes, multiple gravity beams (23) with hanging rings are placed on top of the mud cakes. The outlet end of the drainage ditch (11) is provided with a clean water storage tank (5), which is located on the ground. The inner wall of the clear water storage tank (5) is provided with a filtrate separation device (19). When the water in the drainage ditch (11) flows into the clear water storage tank (5), it first enters the filtrate separation device (19). The clear water storage tank (5) is provided with a pH detection system (18). The pH detection system (18) is located at the outlet of the drainage ditch (11) and is electrically connected to the outlet of the filtrate separation device (19).

2. The energy-saving and green drilled pile mud comprehensive treatment system according to claim 1, characterized in that: The clear water storage tank (5) is provided with a drainage component (20) and a partition component (21). The drainage component (20) includes a flexible hose (2001) located inside the clear water storage tank (5). The top end of the flexible hose (2001) extends to the top of the clear water storage tank (5). A rigid pipe (2002) is fixedly provided at the bottom end of the flexible hose (2001). A buoyancy ball (2003) is fixedly provided at the outer end of the rigid pipe (2002).

3. The energy-saving and green drilled pile mud comprehensive treatment system according to claim 2, characterized in that: The partition component (21) includes a partition (2101), and the partition (2101) has a retaining plate (2103) on both sides and is inserted into the retaining plate (2103). The side of the partition (2101) facing the inner wall of the clear water storage tank (5) is in contact with the inner wall of the clear water storage tank (5). An airbag (2102) is fixedly provided on the side of the card plate (2103) away from the inner wall. The separation component (21) also includes a tray (2104), and the card plate (2103) is fixedly provided on the top of the tray (2104).

4. The energy-saving and green drilled pile mud comprehensive treatment system according to claim 1, characterized in that: The multi-stage sedimentation tank (3) is equipped with a cleaning component (22). The cleaning component (22) includes a conveying pipe (2201) that is mounted on the inner wall of the multi-stage sedimentation tank (3) via a slide rail. A motor (2203) is fixedly mounted at the top of the conveying pipe (2201). One end of the output shaft of the motor (2203) extends into the inside of the conveying pipe (2201) and is fixedly provided with a conveying shaft (2202). The bottom end of the conveying shaft (2202) extends to the bottom of the conveying pipe (2201), and the outer end of the conveying pipe (2201) is fixedly provided with a discharge pipe (2204).

5. A treatment method for the energy-saving and green drilled pile mud integrated treatment system according to any one of claims 1-4, characterized in that: The specific steps are as follows: S1: Before the construction of the pile foundation project, the multi-stage sedimentation tank (3), mud cake tank (4) and clear water storage tank (5) are excavated on the ground. Then, a drainage ditch (11) is dug around the mud cake tank (4) and a filter press (6) is installed. Finally, all the pipes, including water pipe (9) and water pump (2), are placed and connected. S2: When waste mud begins to be generated inside the pile foundation (1), the mud is transported to the multi-stage sedimentation tank (3) through the water pipe (9) and water pump (2). Since the bottom of the multi-stage sedimentation tank (3) is stepped and is equipped with a filter screen (14), large particles of solid in the waste mud will settle at the bottom of the multi-stage sedimentation tank (3), and the mud concentration after being filtered by the filter screen (14) will be greatly reduced. S3: After sedimentation and filtration, the slurry is transported to the filter press (6). The slurry entering the filter press (6) first enters the flocculation tank (16). At the same time, the workers add lime flocculant to the flocculation tank (16). After the slurry reacts with it, it enters the filter chamber (17). Under the pressure of the filter chamber (17), the filtered liquid is finally discharged into the drainage ditch (11), and the solid mud cake falls into the mud cake pool (4) through the mud cake outlet (15). S4: As the filter press (6) works, the sludge cake gradually falls into the sludge cake pool (4). When one of the sludge cake pools (4) is full of sludge cake, the filter press (6) can slowly move to the top of the other sludge cake pool (4) under the action of the roller (8) and the guide rail (7) to continue to discharge sludge cake. At the same time, the separator (21) is placed on top of the sludge cake pool (4) full of sludge cake to preload it with gravity. Then the vacuum pump (10) is started to draw the filtrate inside the sludge cake pool (4) into the drainage ditch (11). S5: The filtrate entering the drainage ditch (11) flows along the drainage ditch (11) into the filtrate separation device (19) inside the clear water storage tank (5). The pH detection system (18) detects the pH value of the filtrate. When the detection result is normal, the outlet of the filtrate separation device (19) opens and the filtrate is collected in the clear water storage tank (5). If the detection result is abnormal, the pH detection system (18) will issue an alarm and the outlet of the filtrate separation device (19) will also be closed. Then, relevant personnel will arrive at the scene to deal with the abnormal filtrate. S6: After the solid mud cake is further filtered inside the mud cake tank (4), it is placed by an excavator at the designated location of the dump truck for transportation or secondary use. The clean water inside the clean water storage tank (5) can also be reused.

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